/* X Communication module for terminals which understand the X protocol. Copyright (C) 1989, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005 Free Software Foundation, Inc. This file is part of GNU Emacs. GNU Emacs is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2, or (at your option) any later version. GNU Emacs is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with GNU Emacs; see the file COPYING. If not, write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ /* New display code by Gerd Moellmann . */ /* Xt features made by Fred Pierresteguy. */ #include /* On 4.3 these lose if they come after xterm.h. */ /* Putting these at the beginning seems to be standard for other .c files. */ #include #include #ifdef HAVE_X_WINDOWS #include "lisp.h" #include "blockinput.h" /* Need syssignal.h for various externs and definitions that may be required by some configurations for calls to signal later in this source file. */ #include "syssignal.h" /* This may include sys/types.h, and that somehow loses if this is not done before the other system files. */ #include "xterm.h" #include /* Load sys/types.h if not already loaded. In some systems loading it twice is suicidal. */ #ifndef makedev #include #endif /* makedev */ #ifdef BSD_SYSTEM #include #endif /* ! defined (BSD_SYSTEM) */ #include "systty.h" #include "systime.h" #ifndef INCLUDED_FCNTL #include #endif #include #include #include #include /* Caused redefinition of DBL_DIG on Netbsd; seems not to be needed. */ /* #include */ #include "charset.h" #include "coding.h" #include "ccl.h" #include "frame.h" #include "dispextern.h" #include "fontset.h" #include "termhooks.h" #include "termopts.h" #include "termchar.h" #include "gnu.h" #include "disptab.h" #include "buffer.h" #include "window.h" #include "keyboard.h" #include "intervals.h" #include "process.h" #include "atimer.h" #include "keymap.h" #ifdef USE_X_TOOLKIT #include #endif #ifdef HAVE_SYS_TIME_H #include #endif #ifdef HAVE_UNISTD_H #include #endif #ifdef USE_GTK #include "gtkutil.h" #endif #ifdef USE_LUCID extern int xlwmenu_window_p P_ ((Widget w, Window window)); extern void xlwmenu_redisplay P_ ((Widget)); #endif #if defined (USE_X_TOOLKIT) || defined (USE_GTK) extern void free_frame_menubar P_ ((struct frame *)); extern struct frame *x_menubar_window_to_frame P_ ((struct x_display_info *, int)); #endif #ifdef USE_X_TOOLKIT #if (XtSpecificationRelease >= 5) && !defined(NO_EDITRES) #define HACK_EDITRES extern void _XEditResCheckMessages (); #endif /* not NO_EDITRES */ /* Include toolkit specific headers for the scroll bar widget. */ #ifdef USE_TOOLKIT_SCROLL_BARS #if defined USE_MOTIF #include /* for LESSTIF_VERSION */ #include #else /* !USE_MOTIF i.e. use Xaw */ #ifdef HAVE_XAW3D #include #include #include #else /* !HAVE_XAW3D */ #include #include #endif /* !HAVE_XAW3D */ #ifndef XtNpickTop #define XtNpickTop "pickTop" #endif /* !XtNpickTop */ #endif /* !USE_MOTIF */ #endif /* USE_TOOLKIT_SCROLL_BARS */ #endif /* USE_X_TOOLKIT */ #if ! defined (USE_X_TOOLKIT) && ! defined (USE_GTK) #define x_any_window_to_frame x_window_to_frame #define x_top_window_to_frame x_window_to_frame #endif #ifdef USE_X_TOOLKIT #include "widget.h" #ifndef XtNinitialState #define XtNinitialState "initialState" #endif #endif #define abs(x) ((x) < 0 ? -(x) : (x)) /* Default to using XIM if available. */ #ifdef USE_XIM int use_xim = 1; #else int use_xim = 0; /* configure --without-xim */ #endif /* Non-nil means Emacs uses toolkit scroll bars. */ Lisp_Object Vx_toolkit_scroll_bars; /* Non-zero means that a HELP_EVENT has been generated since Emacs start. */ static int any_help_event_p; /* Last window where we saw the mouse. Used by mouse-autoselect-window. */ static Lisp_Object last_window; /* Non-zero means make use of UNDERLINE_POSITION font properties. */ int x_use_underline_position_properties; /* This is a chain of structures for all the X displays currently in use. */ struct x_display_info *x_display_list; /* This is a list of cons cells, each of the form (NAME . FONT-LIST-CACHE), one for each element of x_display_list and in the same order. NAME is the name of the frame. FONT-LIST-CACHE records previous values returned by x-list-fonts. */ Lisp_Object x_display_name_list; /* Frame being updated by update_frame. This is declared in term.c. This is set by update_begin and looked at by all the XT functions. It is zero while not inside an update. In that case, the XT functions assume that `selected_frame' is the frame to apply to. */ extern struct frame *updating_frame; /* This is a frame waiting to be auto-raised, within XTread_socket. */ struct frame *pending_autoraise_frame; #ifdef USE_X_TOOLKIT /* The application context for Xt use. */ XtAppContext Xt_app_con; static String Xt_default_resources[] = {0}; #endif /* USE_X_TOOLKIT */ /* Non-zero means user is interacting with a toolkit scroll bar. */ static int toolkit_scroll_bar_interaction; /* Non-zero means to not move point as a result of clicking on a frame to focus it (when focus-follows-mouse is nil). */ int x_mouse_click_focus_ignore_position; /* Non-zero timeout value means ignore next mouse click if it arrives before that timeout elapses (i.e. as part of the same sequence of events resulting from clicking on a frame to select it). */ static unsigned long ignore_next_mouse_click_timeout; /* Mouse movement. Formerly, we used PointerMotionHintMask (in standard_event_mask) so that we would have to call XQueryPointer after each MotionNotify event to ask for another such event. However, this made mouse tracking slow, and there was a bug that made it eventually stop. Simply asking for MotionNotify all the time seems to work better. In order to avoid asking for motion events and then throwing most of them away or busy-polling the server for mouse positions, we ask the server for pointer motion hints. This means that we get only one event per group of mouse movements. "Groups" are delimited by other kinds of events (focus changes and button clicks, for example), or by XQueryPointer calls; when one of these happens, we get another MotionNotify event the next time the mouse moves. This is at least as efficient as getting motion events when mouse tracking is on, and I suspect only negligibly worse when tracking is off. */ /* Where the mouse was last time we reported a mouse event. */ static XRectangle last_mouse_glyph; static Lisp_Object last_mouse_press_frame; /* The scroll bar in which the last X motion event occurred. If the last X motion event occurred in a scroll bar, we set this so XTmouse_position can know whether to report a scroll bar motion or an ordinary motion. If the last X motion event didn't occur in a scroll bar, we set this to Qnil, to tell XTmouse_position to return an ordinary motion event. */ static Lisp_Object last_mouse_scroll_bar; /* This is a hack. We would really prefer that XTmouse_position would return the time associated with the position it returns, but there doesn't seem to be any way to wrest the time-stamp from the server along with the position query. So, we just keep track of the time of the last movement we received, and return that in hopes that it's somewhat accurate. */ static Time last_mouse_movement_time; /* Incremented by XTread_socket whenever it really tries to read events. */ #ifdef __STDC__ static int volatile input_signal_count; #else static int input_signal_count; #endif /* Used locally within XTread_socket. */ static int x_noop_count; /* Initial values of argv and argc. */ extern char **initial_argv; extern int initial_argc; extern Lisp_Object Vcommand_line_args, Vsystem_name; /* Tells if a window manager is present or not. */ extern Lisp_Object Vx_no_window_manager; extern Lisp_Object Qeql; extern int errno; /* A mask of extra modifier bits to put into every keyboard char. */ extern EMACS_INT extra_keyboard_modifiers; /* The keysyms to use for the various modifiers. */ Lisp_Object Vx_alt_keysym, Vx_hyper_keysym, Vx_meta_keysym, Vx_super_keysym; Lisp_Object Vx_keysym_table; static Lisp_Object Qalt, Qhyper, Qmeta, Qsuper, Qmodifier_value; static Lisp_Object Qvendor_specific_keysyms; static Lisp_Object Qlatin_1; extern XrmDatabase x_load_resources P_ ((Display *, char *, char *, char *)); extern int x_bitmap_mask P_ ((FRAME_PTR, int)); static int x_alloc_nearest_color_1 P_ ((Display *, Colormap, XColor *)); static void x_set_window_size_1 P_ ((struct frame *, int, int, int)); static const XColor *x_color_cells P_ ((Display *, int *)); static void x_update_window_end P_ ((struct window *, int, int)); void x_delete_display P_ ((struct x_display_info *)); static unsigned int x_x_to_emacs_modifiers P_ ((struct x_display_info *, unsigned)); static int x_io_error_quitter P_ ((Display *)); int x_catch_errors P_ ((Display *)); void x_uncatch_errors P_ ((Display *, int)); void x_lower_frame P_ ((struct frame *)); void x_scroll_bar_clear P_ ((struct frame *)); int x_had_errors_p P_ ((Display *)); void x_wm_set_size_hint P_ ((struct frame *, long, int)); void x_raise_frame P_ ((struct frame *)); void x_set_window_size P_ ((struct frame *, int, int, int)); void x_wm_set_window_state P_ ((struct frame *, int)); void x_wm_set_icon_pixmap P_ ((struct frame *, int)); void x_initialize P_ ((void)); static void x_font_min_bounds P_ ((XFontStruct *, int *, int *)); static int x_compute_min_glyph_bounds P_ ((struct frame *)); static void x_update_end P_ ((struct frame *)); static void XTframe_up_to_date P_ ((struct frame *)); static void XTset_terminal_modes P_ ((void)); static void XTreset_terminal_modes P_ ((void)); static void x_clear_frame P_ ((void)); static void frame_highlight P_ ((struct frame *)); static void frame_unhighlight P_ ((struct frame *)); static void x_new_focus_frame P_ ((struct x_display_info *, struct frame *)); static void x_focus_changed P_ ((int, int, struct x_display_info *, struct frame *, struct input_event *)); static void x_detect_focus_change P_ ((struct x_display_info *, XEvent *, struct input_event *)); static void XTframe_rehighlight P_ ((struct frame *)); static void x_frame_rehighlight P_ ((struct x_display_info *)); static void x_draw_hollow_cursor P_ ((struct window *, struct glyph_row *)); static void x_draw_bar_cursor P_ ((struct window *, struct glyph_row *, int, enum text_cursor_kinds)); static void x_clip_to_row P_ ((struct window *, struct glyph_row *, int, GC)); static void x_flush P_ ((struct frame *f)); static void x_update_begin P_ ((struct frame *)); static void x_update_window_begin P_ ((struct window *)); static void x_after_update_window_line P_ ((struct glyph_row *)); static struct scroll_bar *x_window_to_scroll_bar P_ ((Display *, Window)); static void x_scroll_bar_report_motion P_ ((struct frame **, Lisp_Object *, enum scroll_bar_part *, Lisp_Object *, Lisp_Object *, unsigned long *)); static void x_check_fullscreen P_ ((struct frame *)); static void x_check_expected_move P_ ((struct frame *)); static int handle_one_xevent P_ ((struct x_display_info *, XEvent *, int *, struct input_event *)); /* Flush display of frame F, or of all frames if F is null. */ static void x_flush (f) struct frame *f; { BLOCK_INPUT; if (f == NULL) { Lisp_Object rest, frame; FOR_EACH_FRAME (rest, frame) x_flush (XFRAME (frame)); } else if (FRAME_X_P (f)) XFlush (FRAME_X_DISPLAY (f)); UNBLOCK_INPUT; } /* Remove calls to XFlush by defining XFlush to an empty replacement. Calls to XFlush should be unnecessary because the X output buffer is flushed automatically as needed by calls to XPending, XNextEvent, or XWindowEvent according to the XFlush man page. XTread_socket calls XPending. Removing XFlush improves performance. */ #define XFlush(DISPLAY) (void) 0 /*********************************************************************** Debugging ***********************************************************************/ #if 0 /* This is a function useful for recording debugging information about the sequence of occurrences in this file. */ struct record { char *locus; int type; }; struct record event_record[100]; int event_record_index; record_event (locus, type) char *locus; int type; { if (event_record_index == sizeof (event_record) / sizeof (struct record)) event_record_index = 0; event_record[event_record_index].locus = locus; event_record[event_record_index].type = type; event_record_index++; } #endif /* 0 */ /* Return the struct x_display_info corresponding to DPY. */ struct x_display_info * x_display_info_for_display (dpy) Display *dpy; { struct x_display_info *dpyinfo; for (dpyinfo = x_display_list; dpyinfo; dpyinfo = dpyinfo->next) if (dpyinfo->display == dpy) return dpyinfo; return 0; } /*********************************************************************** Starting and ending an update ***********************************************************************/ /* Start an update of frame F. This function is installed as a hook for update_begin, i.e. it is called when update_begin is called. This function is called prior to calls to x_update_window_begin for each window being updated. Currently, there is nothing to do here because all interesting stuff is done on a window basis. */ static void x_update_begin (f) struct frame *f; { /* Nothing to do. */ } /* Start update of window W. Set the global variable updated_window to the window being updated and set output_cursor to the cursor position of W. */ static void x_update_window_begin (w) struct window *w; { struct frame *f = XFRAME (WINDOW_FRAME (w)); struct x_display_info *display_info = FRAME_X_DISPLAY_INFO (f); updated_window = w; set_output_cursor (&w->cursor); BLOCK_INPUT; if (f == display_info->mouse_face_mouse_frame) { /* Don't do highlighting for mouse motion during the update. */ display_info->mouse_face_defer = 1; /* If F needs to be redrawn, simply forget about any prior mouse highlighting. */ if (FRAME_GARBAGED_P (f)) display_info->mouse_face_window = Qnil; #if 0 /* Rows in a current matrix containing glyphs in mouse-face have their mouse_face_p flag set, which means that they are always unequal to rows in a desired matrix which never have that flag set. So, rows containing mouse-face glyphs are never scrolled, and we don't have to switch the mouse highlight off here to prevent it from being scrolled. */ /* Can we tell that this update does not affect the window where the mouse highlight is? If so, no need to turn off. Likewise, don't do anything if the frame is garbaged; in that case, the frame's current matrix that we would use is all wrong, and we will redisplay that line anyway. */ if (!NILP (display_info->mouse_face_window) && w == XWINDOW (display_info->mouse_face_window)) { int i; for (i = 0; i < w->desired_matrix->nrows; ++i) if (MATRIX_ROW_ENABLED_P (w->desired_matrix, i)) break; if (i < w->desired_matrix->nrows) clear_mouse_face (display_info); } #endif /* 0 */ } UNBLOCK_INPUT; } /* Draw a vertical window border from (x,y0) to (x,y1) */ static void x_draw_vertical_window_border (w, x, y0, y1) struct window *w; int x, y0, y1; { struct frame *f = XFRAME (WINDOW_FRAME (w)); XDrawLine (FRAME_X_DISPLAY (f), FRAME_X_WINDOW (f), f->output_data.x->normal_gc, x, y0, x, y1); } /* End update of window W (which is equal to updated_window). Draw vertical borders between horizontally adjacent windows, and display W's cursor if CURSOR_ON_P is non-zero. MOUSE_FACE_OVERWRITTEN_P non-zero means that some row containing glyphs in mouse-face were overwritten. In that case we have to make sure that the mouse-highlight is properly redrawn. W may be a menu bar pseudo-window in case we don't have X toolkit support. Such windows don't have a cursor, so don't display it here. */ static void x_update_window_end (w, cursor_on_p, mouse_face_overwritten_p) struct window *w; int cursor_on_p, mouse_face_overwritten_p; { struct x_display_info *dpyinfo = FRAME_X_DISPLAY_INFO (XFRAME (w->frame)); if (!w->pseudo_window_p) { BLOCK_INPUT; if (cursor_on_p) display_and_set_cursor (w, 1, output_cursor.hpos, output_cursor.vpos, output_cursor.x, output_cursor.y); if (draw_window_fringes (w, 1)) x_draw_vertical_border (w); UNBLOCK_INPUT; } /* If a row with mouse-face was overwritten, arrange for XTframe_up_to_date to redisplay the mouse highlight. */ if (mouse_face_overwritten_p) { dpyinfo->mouse_face_beg_row = dpyinfo->mouse_face_beg_col = -1; dpyinfo->mouse_face_end_row = dpyinfo->mouse_face_end_col = -1; dpyinfo->mouse_face_window = Qnil; } updated_window = NULL; } /* End update of frame F. This function is installed as a hook in update_end. */ static void x_update_end (f) struct frame *f; { /* Mouse highlight may be displayed again. */ FRAME_X_DISPLAY_INFO (f)->mouse_face_defer = 0; #ifndef XFlush BLOCK_INPUT; XFlush (FRAME_X_DISPLAY (f)); UNBLOCK_INPUT; #endif } /* This function is called from various places in xdisp.c whenever a complete update has been performed. The global variable updated_window is not available here. */ static void XTframe_up_to_date (f) struct frame *f; { if (FRAME_X_P (f)) { struct x_display_info *dpyinfo = FRAME_X_DISPLAY_INFO (f); if (dpyinfo->mouse_face_deferred_gc || f == dpyinfo->mouse_face_mouse_frame) { BLOCK_INPUT; if (dpyinfo->mouse_face_mouse_frame) note_mouse_highlight (dpyinfo->mouse_face_mouse_frame, dpyinfo->mouse_face_mouse_x, dpyinfo->mouse_face_mouse_y); dpyinfo->mouse_face_deferred_gc = 0; UNBLOCK_INPUT; } } } /* Draw truncation mark bitmaps, continuation mark bitmaps, overlay arrow bitmaps, or clear the fringes if no bitmaps are required before DESIRED_ROW is made current. The window being updated is found in updated_window. This function It is called from update_window_line only if it is known that there are differences between bitmaps to be drawn between current row and DESIRED_ROW. */ static void x_after_update_window_line (desired_row) struct glyph_row *desired_row; { struct window *w = updated_window; struct frame *f; int width, height; xassert (w); if (!desired_row->mode_line_p && !w->pseudo_window_p) desired_row->redraw_fringe_bitmaps_p = 1; /* When a window has disappeared, make sure that no rest of full-width rows stays visible in the internal border. Could check here if updated_window is the leftmost/rightmost window, but I guess it's not worth doing since vertically split windows are almost never used, internal border is rarely set, and the overhead is very small. */ if (windows_or_buffers_changed && desired_row->full_width_p && (f = XFRAME (w->frame), width = FRAME_INTERNAL_BORDER_WIDTH (f), width != 0) && (height = desired_row->visible_height, height > 0)) { int y = WINDOW_TO_FRAME_PIXEL_Y (w, max (0, desired_row->y)); /* Internal border is drawn below the tool bar. */ if (WINDOWP (f->tool_bar_window) && w == XWINDOW (f->tool_bar_window)) y -= width; BLOCK_INPUT; x_clear_area (FRAME_X_DISPLAY (f), FRAME_X_WINDOW (f), 0, y, width, height, False); x_clear_area (FRAME_X_DISPLAY (f), FRAME_X_WINDOW (f), FRAME_PIXEL_WIDTH (f) - width, y, width, height, False); UNBLOCK_INPUT; } } static void x_draw_fringe_bitmap (w, row, p) struct window *w; struct glyph_row *row; struct draw_fringe_bitmap_params *p; { struct frame *f = XFRAME (WINDOW_FRAME (w)); Display *display = FRAME_X_DISPLAY (f); Window window = FRAME_X_WINDOW (f); GC gc = f->output_data.x->normal_gc; struct face *face = p->face; int rowY; /* Must clip because of partially visible lines. */ rowY = WINDOW_TO_FRAME_PIXEL_Y (w, row->y); if (p->y < rowY) { /* Adjust position of "bottom aligned" bitmap on partially visible last row. */ int oldY = row->y; int oldVH = row->visible_height; row->visible_height = p->h; row->y -= rowY - p->y; x_clip_to_row (w, row, -1, gc); row->y = oldY; row->visible_height = oldVH; } else x_clip_to_row (w, row, -1, gc); if (p->bx >= 0 && !p->overlay_p) { /* In case the same realized face is used for fringes and for something displayed in the text (e.g. face `region' on mono-displays, the fill style may have been changed to FillSolid in x_draw_glyph_string_background. */ if (face->stipple) XSetFillStyle (display, face->gc, FillOpaqueStippled); else XSetForeground (display, face->gc, face->background); XFillRectangle (display, window, face->gc, p->bx, p->by, p->nx, p->ny); if (!face->stipple) XSetForeground (display, face->gc, face->foreground); } if (p->which) { unsigned char *bits; Pixmap pixmap, clipmask = (Pixmap) 0; int depth = DefaultDepthOfScreen (FRAME_X_SCREEN (f)); XGCValues gcv; if (p->wd > 8) bits = (unsigned char *)(p->bits + p->dh); else bits = (unsigned char *)p->bits + p->dh; /* Draw the bitmap. I believe these small pixmaps can be cached by the server. */ pixmap = XCreatePixmapFromBitmapData (display, window, bits, p->wd, p->h, (p->cursor_p ? (p->overlay_p ? face->background : f->output_data.x->cursor_pixel) : face->foreground), face->background, depth); if (p->overlay_p) { clipmask = XCreatePixmapFromBitmapData (display, FRAME_X_DISPLAY_INFO (f)->root_window, bits, p->wd, p->h, 1, 0, 1); gcv.clip_mask = clipmask; gcv.clip_x_origin = p->x; gcv.clip_y_origin = p->y; XChangeGC (display, gc, GCClipMask | GCClipXOrigin | GCClipYOrigin, &gcv); } XCopyArea (display, pixmap, window, gc, 0, 0, p->wd, p->h, p->x, p->y); XFreePixmap (display, pixmap); if (p->overlay_p) { gcv.clip_mask = (Pixmap) 0; XChangeGC (display, gc, GCClipMask, &gcv); XFreePixmap (display, clipmask); } } XSetClipMask (display, gc, None); } /* This is called when starting Emacs and when restarting after suspend. When starting Emacs, no X window is mapped. And nothing must be done to Emacs's own window if it is suspended (though that rarely happens). */ static void XTset_terminal_modes () { } /* This is called when exiting or suspending Emacs. Exiting will make the X-windows go away, and suspending requires no action. */ static void XTreset_terminal_modes () { } /*********************************************************************** Display Iterator ***********************************************************************/ /* Function prototypes of this page. */ static int x_encode_char P_ ((int, XChar2b *, struct font_info *, int *)); /* Get metrics of character CHAR2B in FONT. Value is null if CHAR2B is not contained in the font. */ static XCharStruct * x_per_char_metric (font, char2b, font_type) XFontStruct *font; XChar2b *char2b; int font_type; /* unused on X */ { /* The result metric information. */ XCharStruct *pcm = NULL; xassert (font && char2b); if (font->per_char != NULL) { if (font->min_byte1 == 0 && font->max_byte1 == 0) { /* min_char_or_byte2 specifies the linear character index corresponding to the first element of the per_char array, max_char_or_byte2 is the index of the last character. A character with non-zero CHAR2B->byte1 is not in the font. A character with byte2 less than min_char_or_byte2 or greater max_char_or_byte2 is not in the font. */ if (char2b->byte1 == 0 && char2b->byte2 >= font->min_char_or_byte2 && char2b->byte2 <= font->max_char_or_byte2) pcm = font->per_char + char2b->byte2 - font->min_char_or_byte2; } else { /* If either min_byte1 or max_byte1 are nonzero, both min_char_or_byte2 and max_char_or_byte2 are less than 256, and the 2-byte character index values corresponding to the per_char array element N (counting from 0) are: byte1 = N/D + min_byte1 byte2 = N\D + min_char_or_byte2 where: D = max_char_or_byte2 - min_char_or_byte2 + 1 / = integer division \ = integer modulus */ if (char2b->byte1 >= font->min_byte1 && char2b->byte1 <= font->max_byte1 && char2b->byte2 >= font->min_char_or_byte2 && char2b->byte2 <= font->max_char_or_byte2) { pcm = (font->per_char + ((font->max_char_or_byte2 - font->min_char_or_byte2 + 1) * (char2b->byte1 - font->min_byte1)) + (char2b->byte2 - font->min_char_or_byte2)); } } } else { /* If the per_char pointer is null, all glyphs between the first and last character indexes inclusive have the same information, as given by both min_bounds and max_bounds. */ if (char2b->byte2 >= font->min_char_or_byte2 && char2b->byte2 <= font->max_char_or_byte2) pcm = &font->max_bounds; } return ((pcm == NULL || (pcm->width == 0 && (pcm->rbearing - pcm->lbearing) == 0)) ? NULL : pcm); } /* Encode CHAR2B using encoding information from FONT_INFO. CHAR2B is the two-byte form of C. Encoding is returned in *CHAR2B. */ static int x_encode_char (c, char2b, font_info, two_byte_p) int c; XChar2b *char2b; struct font_info *font_info; int *two_byte_p; { int charset = CHAR_CHARSET (c); XFontStruct *font = font_info->font; /* FONT_INFO may define a scheme by which to encode byte1 and byte2. This may be either a program in a special encoder language or a fixed encoding. */ if (font_info->font_encoder) { /* It's a program. */ struct ccl_program *ccl = font_info->font_encoder; check_ccl_update (ccl); if (CHARSET_DIMENSION (charset) == 1) { ccl->reg[0] = charset; ccl->reg[1] = char2b->byte2; ccl->reg[2] = -1; } else { ccl->reg[0] = charset; ccl->reg[1] = char2b->byte1; ccl->reg[2] = char2b->byte2; } ccl_driver (ccl, NULL, NULL, 0, 0, NULL); /* We assume that MSBs are appropriately set/reset by CCL program. */ if (font->max_byte1 == 0) /* 1-byte font */ char2b->byte1 = 0, char2b->byte2 = ccl->reg[1]; else char2b->byte1 = ccl->reg[1], char2b->byte2 = ccl->reg[2]; } else if (font_info->encoding[charset]) { /* Fixed encoding scheme. See fontset.h for the meaning of the encoding numbers. */ int enc = font_info->encoding[charset]; if ((enc == 1 || enc == 2) && CHARSET_DIMENSION (charset) == 2) char2b->byte1 |= 0x80; if (enc == 1 || enc == 3) char2b->byte2 |= 0x80; } if (two_byte_p) *two_byte_p = ((XFontStruct *) (font_info->font))->max_byte1 > 0; return FONT_TYPE_UNKNOWN; } /*********************************************************************** Glyph display ***********************************************************************/ static void x_set_glyph_string_clipping P_ ((struct glyph_string *)); static void x_set_glyph_string_gc P_ ((struct glyph_string *)); static void x_draw_glyph_string_background P_ ((struct glyph_string *, int)); static void x_draw_glyph_string_foreground P_ ((struct glyph_string *)); static void x_draw_composite_glyph_string_foreground P_ ((struct glyph_string *)); static void x_draw_glyph_string_box P_ ((struct glyph_string *)); static void x_draw_glyph_string P_ ((struct glyph_string *)); static void x_compute_glyph_string_overhangs P_ ((struct glyph_string *)); static void x_set_cursor_gc P_ ((struct glyph_string *)); static void x_set_mode_line_face_gc P_ ((struct glyph_string *)); static void x_set_mouse_face_gc P_ ((struct glyph_string *)); static int x_alloc_lighter_color P_ ((struct frame *, Display *, Colormap, unsigned long *, double, int)); static void x_setup_relief_color P_ ((struct frame *, struct relief *, double, int, unsigned long)); static void x_setup_relief_colors P_ ((struct glyph_string *)); static void x_draw_image_glyph_string P_ ((struct glyph_string *)); static void x_draw_image_relief P_ ((struct glyph_string *)); static void x_draw_image_foreground P_ ((struct glyph_string *)); static void x_draw_image_foreground_1 P_ ((struct glyph_string *, Pixmap)); static void x_clear_glyph_string_rect P_ ((struct glyph_string *, int, int, int, int)); static void x_draw_relief_rect P_ ((struct frame *, int, int, int, int, int, int, int, int, int, int, XRectangle *)); static void x_draw_box_rect P_ ((struct glyph_string *, int, int, int, int, int, int, int, XRectangle *)); #if GLYPH_DEBUG static void x_check_font P_ ((struct frame *, XFontStruct *)); #endif /* Set S->gc to a suitable GC for drawing glyph string S in cursor face. */ static void x_set_cursor_gc (s) struct glyph_string *s; { if (s->font == FRAME_FONT (s->f) && s->face->background == FRAME_BACKGROUND_PIXEL (s->f) && s->face->foreground == FRAME_FOREGROUND_PIXEL (s->f) && !s->cmp) s->gc = s->f->output_data.x->cursor_gc; else { /* Cursor on non-default face: must merge. */ XGCValues xgcv; unsigned long mask; xgcv.background = s->f->output_data.x->cursor_pixel; xgcv.foreground = s->face->background; /* If the glyph would be invisible, try a different foreground. */ if (xgcv.foreground == xgcv.background) xgcv.foreground = s->face->foreground; if (xgcv.foreground == xgcv.background) xgcv.foreground = s->f->output_data.x->cursor_foreground_pixel; if (xgcv.foreground == xgcv.background) xgcv.foreground = s->face->foreground; /* Make sure the cursor is distinct from text in this face. */ if (xgcv.background == s->face->background && xgcv.foreground == s->face->foreground) { xgcv.background = s->face->foreground; xgcv.foreground = s->face->background; } IF_DEBUG (x_check_font (s->f, s->font)); xgcv.font = s->font->fid; xgcv.graphics_exposures = False; mask = GCForeground | GCBackground | GCFont | GCGraphicsExposures; if (FRAME_X_DISPLAY_INFO (s->f)->scratch_cursor_gc) XChangeGC (s->display, FRAME_X_DISPLAY_INFO (s->f)->scratch_cursor_gc, mask, &xgcv); else FRAME_X_DISPLAY_INFO (s->f)->scratch_cursor_gc = XCreateGC (s->display, s->window, mask, &xgcv); s->gc = FRAME_X_DISPLAY_INFO (s->f)->scratch_cursor_gc; } } /* Set up S->gc of glyph string S for drawing text in mouse face. */ static void x_set_mouse_face_gc (s) struct glyph_string *s; { int face_id; struct face *face; /* What face has to be used last for the mouse face? */ face_id = FRAME_X_DISPLAY_INFO (s->f)->mouse_face_face_id; face = FACE_FROM_ID (s->f, face_id); if (face == NULL) face = FACE_FROM_ID (s->f, MOUSE_FACE_ID); if (s->first_glyph->type == CHAR_GLYPH) face_id = FACE_FOR_CHAR (s->f, face, s->first_glyph->u.ch); else face_id = FACE_FOR_CHAR (s->f, face, 0); s->face = FACE_FROM_ID (s->f, face_id); PREPARE_FACE_FOR_DISPLAY (s->f, s->face); /* If font in this face is same as S->font, use it. */ if (s->font == s->face->font) s->gc = s->face->gc; else { /* Otherwise construct scratch_cursor_gc with values from FACE but font FONT. */ XGCValues xgcv; unsigned long mask; xgcv.background = s->face->background; xgcv.foreground = s->face->foreground; IF_DEBUG (x_check_font (s->f, s->font)); xgcv.font = s->font->fid; xgcv.graphics_exposures = False; mask = GCForeground | GCBackground | GCFont | GCGraphicsExposures; if (FRAME_X_DISPLAY_INFO (s->f)->scratch_cursor_gc) XChangeGC (s->display, FRAME_X_DISPLAY_INFO (s->f)->scratch_cursor_gc, mask, &xgcv); else FRAME_X_DISPLAY_INFO (s->f)->scratch_cursor_gc = XCreateGC (s->display, s->window, mask, &xgcv); s->gc = FRAME_X_DISPLAY_INFO (s->f)->scratch_cursor_gc; } xassert (s->gc != 0); } /* Set S->gc of glyph string S to a GC suitable for drawing a mode line. Faces to use in the mode line have already been computed when the matrix was built, so there isn't much to do, here. */ static INLINE void x_set_mode_line_face_gc (s) struct glyph_string *s; { s->gc = s->face->gc; } /* Set S->gc of glyph string S for drawing that glyph string. Set S->stippled_p to a non-zero value if the face of S has a stipple pattern. */ static INLINE void x_set_glyph_string_gc (s) struct glyph_string *s; { PREPARE_FACE_FOR_DISPLAY (s->f, s->face); if (s->hl == DRAW_NORMAL_TEXT) { s->gc = s->face->gc; s->stippled_p = s->face->stipple != 0; } else if (s->hl == DRAW_INVERSE_VIDEO) { x_set_mode_line_face_gc (s); s->stippled_p = s->face->stipple != 0; } else if (s->hl == DRAW_CURSOR) { x_set_cursor_gc (s); s->stippled_p = 0; } else if (s->hl == DRAW_MOUSE_FACE) { x_set_mouse_face_gc (s); s->stippled_p = s->face->stipple != 0; } else if (s->hl == DRAW_IMAGE_RAISED || s->hl == DRAW_IMAGE_SUNKEN) { s->gc = s->face->gc; s->stippled_p = s->face->stipple != 0; } else { s->gc = s->face->gc; s->stippled_p = s->face->stipple != 0; } /* GC must have been set. */ xassert (s->gc != 0); } /* Set clipping for output of glyph string S. S may be part of a mode line or menu if we don't have X toolkit support. */ static INLINE void x_set_glyph_string_clipping (s) struct glyph_string *s; { XRectangle r; get_glyph_string_clip_rect (s, &r); XSetClipRectangles (s->display, s->gc, 0, 0, &r, 1, Unsorted); } /* RIF: Compute left and right overhang of glyph string S. If S is a glyph string for a composition, assume overhangs don't exist. */ static void x_compute_glyph_string_overhangs (s) struct glyph_string *s; { if (s->cmp == NULL && s->first_glyph->type == CHAR_GLYPH) { XCharStruct cs; int direction, font_ascent, font_descent; XTextExtents16 (s->font, s->char2b, s->nchars, &direction, &font_ascent, &font_descent, &cs); s->right_overhang = cs.rbearing > cs.width ? cs.rbearing - cs.width : 0; s->left_overhang = cs.lbearing < 0 ? -cs.lbearing : 0; } } /* Fill rectangle X, Y, W, H with background color of glyph string S. */ static INLINE void x_clear_glyph_string_rect (s, x, y, w, h) struct glyph_string *s; int x, y, w, h; { XGCValues xgcv; XGetGCValues (s->display, s->gc, GCForeground | GCBackground, &xgcv); XSetForeground (s->display, s->gc, xgcv.background); XFillRectangle (s->display, s->window, s->gc, x, y, w, h); XSetForeground (s->display, s->gc, xgcv.foreground); } /* Draw the background of glyph_string S. If S->background_filled_p is non-zero don't draw it. FORCE_P non-zero means draw the background even if it wouldn't be drawn normally. This is used when a string preceding S draws into the background of S, or S contains the first component of a composition. */ static void x_draw_glyph_string_background (s, force_p) struct glyph_string *s; int force_p; { /* Nothing to do if background has already been drawn or if it shouldn't be drawn in the first place. */ if (!s->background_filled_p) { int box_line_width = max (s->face->box_line_width, 0); if (s->stippled_p) { /* Fill background with a stipple pattern. */ XSetFillStyle (s->display, s->gc, FillOpaqueStippled); XFillRectangle (s->display, s->window, s->gc, s->x, s->y + box_line_width, s->background_width, s->height - 2 * box_line_width); XSetFillStyle (s->display, s->gc, FillSolid); s->background_filled_p = 1; } else if (FONT_HEIGHT (s->font) < s->height - 2 * box_line_width || s->font_not_found_p || s->extends_to_end_of_line_p || force_p) { x_clear_glyph_string_rect (s, s->x, s->y + box_line_width, s->background_width, s->height - 2 * box_line_width); s->background_filled_p = 1; } } } /* Draw the foreground of glyph string S. */ static void x_draw_glyph_string_foreground (s) struct glyph_string *s; { int i, x; /* If first glyph of S has a left box line, start drawing the text of S to the right of that box line. */ if (s->face->box != FACE_NO_BOX && s->first_glyph->left_box_line_p) x = s->x + abs (s->face->box_line_width); else x = s->x; /* Draw characters of S as rectangles if S's font could not be loaded. */ if (s->font_not_found_p) { for (i = 0; i < s->nchars; ++i) { struct glyph *g = s->first_glyph + i; XDrawRectangle (s->display, s->window, s->gc, x, s->y, g->pixel_width - 1, s->height - 1); x += g->pixel_width; } } else { char *char1b = (char *) s->char2b; int boff = s->font_info->baseline_offset; if (s->font_info->vertical_centering) boff = VCENTER_BASELINE_OFFSET (s->font, s->f) - boff; /* If we can use 8-bit functions, condense S->char2b. */ if (!s->two_byte_p) for (i = 0; i < s->nchars; ++i) char1b[i] = s->char2b[i].byte2; /* Draw text with XDrawString if background has already been filled. Otherwise, use XDrawImageString. (Note that XDrawImageString is usually faster than XDrawString.) Always use XDrawImageString when drawing the cursor so that there is no chance that characters under a box cursor are invisible. */ if (s->for_overlaps_p || (s->background_filled_p && s->hl != DRAW_CURSOR)) { /* Draw characters with 16-bit or 8-bit functions. */ if (s->two_byte_p) XDrawString16 (s->display, s->window, s->gc, x, s->ybase - boff, s->char2b, s->nchars); else XDrawString (s->display, s->window, s->gc, x, s->ybase - boff, char1b, s->nchars); } else { if (s->two_byte_p) XDrawImageString16 (s->display, s->window, s->gc, x, s->ybase - boff, s->char2b, s->nchars); else XDrawImageString (s->display, s->window, s->gc, x, s->ybase - boff, char1b, s->nchars); } if (s->face->overstrike) { /* For overstriking (to simulate bold-face), draw the characters again shifted to the right by one pixel. */ if (s->two_byte_p) XDrawString16 (s->display, s->window, s->gc, x + 1, s->ybase - boff, s->char2b, s->nchars); else XDrawString (s->display, s->window, s->gc, x + 1, s->ybase - boff, char1b, s->nchars); } } } /* Draw the foreground of composite glyph string S. */ static void x_draw_composite_glyph_string_foreground (s) struct glyph_string *s; { int i, x; /* If first glyph of S has a left box line, start drawing the text of S to the right of that box line. */ if (s->face->box != FACE_NO_BOX && s->first_glyph->left_box_line_p) x = s->x + abs (s->face->box_line_width); else x = s->x; /* S is a glyph string for a composition. S->gidx is the index of the first character drawn for glyphs of this composition. S->gidx == 0 means we are drawing the very first character of this composition. */ /* Draw a rectangle for the composition if the font for the very first character of the composition could not be loaded. */ if (s->font_not_found_p) { if (s->gidx == 0) XDrawRectangle (s->display, s->window, s->gc, x, s->y, s->width - 1, s->height - 1); } else { for (i = 0; i < s->nchars; i++, ++s->gidx) { XDrawString16 (s->display, s->window, s->gc, x + s->cmp->offsets[s->gidx * 2], s->ybase - s->cmp->offsets[s->gidx * 2 + 1], s->char2b + i, 1); if (s->face->overstrike) XDrawString16 (s->display, s->window, s->gc, x + s->cmp->offsets[s->gidx * 2] + 1, s->ybase - s->cmp->offsets[s->gidx * 2 + 1], s->char2b + i, 1); } } } #ifdef USE_X_TOOLKIT static struct frame *x_frame_of_widget P_ ((Widget)); static Boolean cvt_string_to_pixel P_ ((Display *, XrmValue *, Cardinal *, XrmValue *, XrmValue *, XtPointer *)); static void cvt_pixel_dtor P_ ((XtAppContext, XrmValue *, XtPointer, XrmValue *, Cardinal *)); /* Return the frame on which widget WIDGET is used.. Abort if frame cannot be determined. */ static struct frame * x_frame_of_widget (widget) Widget widget; { struct x_display_info *dpyinfo; Lisp_Object tail; struct frame *f; dpyinfo = x_display_info_for_display (XtDisplay (widget)); /* Find the top-level shell of the widget. Note that this function can be called when the widget is not yet realized, so XtWindow (widget) == 0. That's the reason we can't simply use x_any_window_to_frame. */ while (!XtIsTopLevelShell (widget)) widget = XtParent (widget); /* Look for a frame with that top-level widget. Allocate the color on that frame to get the right gamma correction value. */ for (tail = Vframe_list; GC_CONSP (tail); tail = XCDR (tail)) if (GC_FRAMEP (XCAR (tail)) && (f = XFRAME (XCAR (tail)), (f->output_data.nothing != 1 && FRAME_X_DISPLAY_INFO (f) == dpyinfo)) && f->output_data.x->widget == widget) return f; abort (); } /* Allocate the color COLOR->pixel on the screen and display of widget WIDGET in colormap CMAP. If an exact match cannot be allocated, try the nearest color available. Value is non-zero if successful. This is called from lwlib. */ int x_alloc_nearest_color_for_widget (widget, cmap, color) Widget widget; Colormap cmap; XColor *color; { struct frame *f = x_frame_of_widget (widget); return x_alloc_nearest_color (f, cmap, color); } /* Allocate a color which is lighter or darker than *PIXEL by FACTOR or DELTA. Try a color with RGB values multiplied by FACTOR first. If this produces the same color as PIXEL, try a color where all RGB values have DELTA added. Return the allocated color in *PIXEL. DISPLAY is the X display, CMAP is the colormap to operate on. Value is non-zero if successful. */ int x_alloc_lighter_color_for_widget (widget, display, cmap, pixel, factor, delta) Widget widget; Display *display; Colormap cmap; unsigned long *pixel; double factor; int delta; { struct frame *f = x_frame_of_widget (widget); return x_alloc_lighter_color (f, display, cmap, pixel, factor, delta); } /* Structure specifying which arguments should be passed by Xt to cvt_string_to_pixel. We want the widget's screen and colormap. */ static XtConvertArgRec cvt_string_to_pixel_args[] = { {XtWidgetBaseOffset, (XtPointer) XtOffset (Widget, core.screen), sizeof (Screen *)}, {XtWidgetBaseOffset, (XtPointer) XtOffset (Widget, core.colormap), sizeof (Colormap)} }; /* The address of this variable is returned by cvt_string_to_pixel. */ static Pixel cvt_string_to_pixel_value; /* Convert a color name to a pixel color. DPY is the display we are working on. ARGS is an array of *NARGS XrmValue structures holding additional information about the widget for which the conversion takes place. The contents of this array are determined by the specification in cvt_string_to_pixel_args. FROM is a pointer to an XrmValue which points to the color name to convert. TO is an XrmValue in which to return the pixel color. CLOSURE_RET is a pointer to user-data, in which we record if we allocated the color or not. Value is True if successful, False otherwise. */ static Boolean cvt_string_to_pixel (dpy, args, nargs, from, to, closure_ret) Display *dpy; XrmValue *args; Cardinal *nargs; XrmValue *from, *to; XtPointer *closure_ret; { Screen *screen; Colormap cmap; Pixel pixel; String color_name; XColor color; if (*nargs != 2) { XtAppWarningMsg (XtDisplayToApplicationContext (dpy), "wrongParameters", "cvt_string_to_pixel", "XtToolkitError", "Screen and colormap args required", NULL, NULL); return False; } screen = *(Screen **) args[0].addr; cmap = *(Colormap *) args[1].addr; color_name = (String) from->addr; if (strcmp (color_name, XtDefaultBackground) == 0) { *closure_ret = (XtPointer) False; pixel = WhitePixelOfScreen (screen); } else if (strcmp (color_name, XtDefaultForeground) == 0) { *closure_ret = (XtPointer) False; pixel = BlackPixelOfScreen (screen); } else if (XParseColor (dpy, cmap, color_name, &color) && x_alloc_nearest_color_1 (dpy, cmap, &color)) { pixel = color.pixel; *closure_ret = (XtPointer) True; } else { String params[1]; Cardinal nparams = 1; params[0] = color_name; XtAppWarningMsg (XtDisplayToApplicationContext (dpy), "badValue", "cvt_string_to_pixel", "XtToolkitError", "Invalid color `%s'", params, &nparams); return False; } if (to->addr != NULL) { if (to->size < sizeof (Pixel)) { to->size = sizeof (Pixel); return False; } *(Pixel *) to->addr = pixel; } else { cvt_string_to_pixel_value = pixel; to->addr = (XtPointer) &cvt_string_to_pixel_value; } to->size = sizeof (Pixel); return True; } /* Free a pixel color which was previously allocated via cvt_string_to_pixel. This is registered as the destructor for this type of resource via XtSetTypeConverter. APP is the application context in which we work. TO is a pointer to an XrmValue holding the color to free. CLOSURE is the value we stored in CLOSURE_RET for this color in cvt_string_to_pixel. ARGS and NARGS are like for cvt_string_to_pixel. */ static void cvt_pixel_dtor (app, to, closure, args, nargs) XtAppContext app; XrmValuePtr to; XtPointer closure; XrmValuePtr args; Cardinal *nargs; { if (*nargs != 2) { XtAppWarningMsg (app, "wrongParameters", "cvt_pixel_dtor", "XtToolkitError", "Screen and colormap arguments required", NULL, NULL); } else if (closure != NULL) { /* We did allocate the pixel, so free it. */ Screen *screen = *(Screen **) args[0].addr; Colormap cmap = *(Colormap *) args[1].addr; x_free_dpy_colors (DisplayOfScreen (screen), screen, cmap, (Pixel *) to->addr, 1); } } #endif /* USE_X_TOOLKIT */ /* Value is an array of XColor structures for the contents of the color map of display DPY. Set *NCELLS to the size of the array. Note that this probably shouldn't be called for large color maps, say a 24-bit TrueColor map. */ static const XColor * x_color_cells (dpy, ncells) Display *dpy; int *ncells; { struct x_display_info *dpyinfo = x_display_info_for_display (dpy); if (dpyinfo->color_cells == NULL) { Screen *screen = dpyinfo->screen; int i; dpyinfo->ncolor_cells = XDisplayCells (dpy, XScreenNumberOfScreen (screen)); dpyinfo->color_cells = (XColor *) xmalloc (dpyinfo->ncolor_cells * sizeof *dpyinfo->color_cells); for (i = 0; i < dpyinfo->ncolor_cells; ++i) dpyinfo->color_cells[i].pixel = i; XQueryColors (dpy, dpyinfo->cmap, dpyinfo->color_cells, dpyinfo->ncolor_cells); } *ncells = dpyinfo->ncolor_cells; return dpyinfo->color_cells; } /* On frame F, translate pixel colors to RGB values for the NCOLORS colors in COLORS. Use cached information, if available. */ void x_query_colors (f, colors, ncolors) struct frame *f; XColor *colors; int ncolors; { struct x_display_info *dpyinfo = FRAME_X_DISPLAY_INFO (f); if (dpyinfo->color_cells) { int i; for (i = 0; i < ncolors; ++i) { unsigned long pixel = colors[i].pixel; xassert (pixel < dpyinfo->ncolor_cells); xassert (dpyinfo->color_cells[pixel].pixel == pixel); colors[i] = dpyinfo->color_cells[pixel]; } } else XQueryColors (FRAME_X_DISPLAY (f), FRAME_X_COLORMAP (f), colors, ncolors); } /* On frame F, translate pixel color to RGB values for the color in COLOR. Use cached information, if available. */ void x_query_color (f, color) struct frame *f; XColor *color; { x_query_colors (f, color, 1); } /* Allocate the color COLOR->pixel on DISPLAY, colormap CMAP. If an exact match can't be allocated, try the nearest color available. Value is non-zero if successful. Set *COLOR to the color allocated. */ static int x_alloc_nearest_color_1 (dpy, cmap, color) Display *dpy; Colormap cmap; XColor *color; { int rc; rc = XAllocColor (dpy, cmap, color); if (rc == 0) { /* If we got to this point, the colormap is full, so we're going to try to get the next closest color. The algorithm used is a least-squares matching, which is what X uses for closest color matching with StaticColor visuals. */ int nearest, i; unsigned long nearest_delta = ~0; int ncells; const XColor *cells = x_color_cells (dpy, &ncells); for (nearest = i = 0; i < ncells; ++i) { long dred = (color->red >> 8) - (cells[i].red >> 8); long dgreen = (color->green >> 8) - (cells[i].green >> 8); long dblue = (color->blue >> 8) - (cells[i].blue >> 8); unsigned long delta = dred * dred + dgreen * dgreen + dblue * dblue; if (delta < nearest_delta) { nearest = i; nearest_delta = delta; } } color->red = cells[nearest].red; color->green = cells[nearest].green; color->blue = cells[nearest].blue; rc = XAllocColor (dpy, cmap, color); } else { /* If allocation succeeded, and the allocated pixel color is not equal to a cached pixel color recorded earlier, there was a change in the colormap, so clear the color cache. */ struct x_display_info *dpyinfo = x_display_info_for_display (dpy); XColor *cached_color; if (dpyinfo->color_cells && (cached_color = &dpyinfo->color_cells[color->pixel], (cached_color->red != color->red || cached_color->blue != color->blue || cached_color->green != color->green))) { xfree (dpyinfo->color_cells); dpyinfo->color_cells = NULL; dpyinfo->ncolor_cells = 0; } } #ifdef DEBUG_X_COLORS if (rc) register_color (color->pixel); #endif /* DEBUG_X_COLORS */ return rc; } /* Allocate the color COLOR->pixel on frame F, colormap CMAP. If an exact match can't be allocated, try the nearest color available. Value is non-zero if successful. Set *COLOR to the color allocated. */ int x_alloc_nearest_color (f, cmap, color) struct frame *f; Colormap cmap; XColor *color; { gamma_correct (f, color); return x_alloc_nearest_color_1 (FRAME_X_DISPLAY (f), cmap, color); } /* Allocate color PIXEL on frame F. PIXEL must already be allocated. It's necessary to do this instead of just using PIXEL directly to get color reference counts right. */ unsigned long x_copy_color (f, pixel) struct frame *f; unsigned long pixel; { XColor color; color.pixel = pixel; BLOCK_INPUT; x_query_color (f, &color); XAllocColor (FRAME_X_DISPLAY (f), FRAME_X_COLORMAP (f), &color); UNBLOCK_INPUT; #ifdef DEBUG_X_COLORS register_color (pixel); #endif return color.pixel; } /* Allocate color PIXEL on display DPY. PIXEL must already be allocated. It's necessary to do this instead of just using PIXEL directly to get color reference counts right. */ unsigned long x_copy_dpy_color (dpy, cmap, pixel) Display *dpy; Colormap cmap; unsigned long pixel; { XColor color; color.pixel = pixel; BLOCK_INPUT; XQueryColor (dpy, cmap, &color); XAllocColor (dpy, cmap, &color); UNBLOCK_INPUT; #ifdef DEBUG_X_COLORS register_color (pixel); #endif return color.pixel; } /* Brightness beyond which a color won't have its highlight brightness boosted. Nominally, highlight colors for `3d' faces are calculated by brightening an object's color by a constant scale factor, but this doesn't yield good results for dark colors, so for colors who's brightness is less than this value (on a scale of 0-65535) have an use an additional additive factor. The value here is set so that the default menu-bar/mode-line color (grey75) will not have its highlights changed at all. */ #define HIGHLIGHT_COLOR_DARK_BOOST_LIMIT 48000 /* Allocate a color which is lighter or darker than *PIXEL by FACTOR or DELTA. Try a color with RGB values multiplied by FACTOR first. If this produces the same color as PIXEL, try a color where all RGB values have DELTA added. Return the allocated color in *PIXEL. DISPLAY is the X display, CMAP is the colormap to operate on. Value is non-zero if successful. */ static int x_alloc_lighter_color (f, display, cmap, pixel, factor, delta) struct frame *f; Display *display; Colormap cmap; unsigned long *pixel; double factor; int delta; { XColor color, new; long bright; int success_p; /* Get RGB color values. */ color.pixel = *pixel; x_query_color (f, &color); /* Change RGB values by specified FACTOR. Avoid overflow! */ xassert (factor >= 0); new.red = min (0xffff, factor * color.red); new.green = min (0xffff, factor * color.green); new.blue = min (0xffff, factor * color.blue); /* Calculate brightness of COLOR. */ bright = (2 * color.red + 3 * color.green + color.blue) / 6; /* We only boost colors that are darker than HIGHLIGHT_COLOR_DARK_BOOST_LIMIT. */ if (bright < HIGHLIGHT_COLOR_DARK_BOOST_LIMIT) /* Make an additive adjustment to NEW, because it's dark enough so that scaling by FACTOR alone isn't enough. */ { /* How far below the limit this color is (0 - 1, 1 being darker). */ double dimness = 1 - (double)bright / HIGHLIGHT_COLOR_DARK_BOOST_LIMIT; /* The additive adjustment. */ int min_delta = delta * dimness * factor / 2; if (factor < 1) { new.red = max (0, new.red - min_delta); new.green = max (0, new.green - min_delta); new.blue = max (0, new.blue - min_delta); } else { new.red = min (0xffff, min_delta + new.red); new.green = min (0xffff, min_delta + new.green); new.blue = min (0xffff, min_delta + new.blue); } } /* Try to allocate the color. */ success_p = x_alloc_nearest_color (f, cmap, &new); if (success_p) { if (new.pixel == *pixel) { /* If we end up with the same color as before, try adding delta to the RGB values. */ x_free_colors (f, &new.pixel, 1); new.red = min (0xffff, delta + color.red); new.green = min (0xffff, delta + color.green); new.blue = min (0xffff, delta + color.blue); success_p = x_alloc_nearest_color (f, cmap, &new); } else success_p = 1; *pixel = new.pixel; } return success_p; } /* Set up the foreground color for drawing relief lines of glyph string S. RELIEF is a pointer to a struct relief containing the GC with which lines will be drawn. Use a color that is FACTOR or DELTA lighter or darker than the relief's background which is found in S->f->output_data.x->relief_background. If such a color cannot be allocated, use DEFAULT_PIXEL, instead. */ static void x_setup_relief_color (f, relief, factor, delta, default_pixel) struct frame *f; struct relief *relief; double factor; int delta; unsigned long default_pixel; { XGCValues xgcv; struct x_output *di = f->output_data.x; unsigned long mask = GCForeground | GCLineWidth | GCGraphicsExposures; unsigned long pixel; unsigned long background = di->relief_background; Colormap cmap = FRAME_X_COLORMAP (f); struct x_display_info *dpyinfo = FRAME_X_DISPLAY_INFO (f); Display *dpy = FRAME_X_DISPLAY (f); xgcv.graphics_exposures = False; xgcv.line_width = 1; /* Free previously allocated color. The color cell will be reused when it has been freed as many times as it was allocated, so this doesn't affect faces using the same colors. */ if (relief->gc && relief->allocated_p) { x_free_colors (f, &relief->pixel, 1); relief->allocated_p = 0; } /* Allocate new color. */ xgcv.foreground = default_pixel; pixel = background; if (dpyinfo->n_planes != 1 && x_alloc_lighter_color (f, dpy, cmap, &pixel, factor, delta)) { relief->allocated_p = 1; xgcv.foreground = relief->pixel = pixel; } if (relief->gc == 0) { xgcv.stipple = dpyinfo->gray; mask |= GCStipple; relief->gc = XCreateGC (dpy, FRAME_X_WINDOW (f), mask, &xgcv); } else XChangeGC (dpy, relief->gc, mask, &xgcv); } /* Set up colors for the relief lines around glyph string S. */ static void x_setup_relief_colors (s) struct glyph_string *s; { struct x_output *di = s->f->output_data.x; unsigned long color; if (s->face->use_box_color_for_shadows_p) color = s->face->box_color; else if (s->first_glyph->type == IMAGE_GLYPH && s->img->pixmap && !IMAGE_BACKGROUND_TRANSPARENT (s->img, s->f, 0)) color = IMAGE_BACKGROUND (s->img, s->f, 0); else { XGCValues xgcv; /* Get the background color of the face. */ XGetGCValues (s->display, s->gc, GCBackground, &xgcv); color = xgcv.background; } if (di->white_relief.gc == 0 || color != di->relief_background) { di->relief_background = color; x_setup_relief_color (s->f, &di->white_relief, 1.2, 0x8000, WHITE_PIX_DEFAULT (s->f)); x_setup_relief_color (s->f, &di->black_relief, 0.6, 0x4000, BLACK_PIX_DEFAULT (s->f)); } } /* Draw a relief on frame F inside the rectangle given by LEFT_X, TOP_Y, RIGHT_X, and BOTTOM_Y. WIDTH is the thickness of the relief to draw, it must be >= 0. RAISED_P non-zero means draw a raised relief. LEFT_P non-zero means draw a relief on the left side of the rectangle. RIGHT_P non-zero means draw a relief on the right side of the rectangle. CLIP_RECT is the clipping rectangle to use when drawing. */ static void x_draw_relief_rect (f, left_x, top_y, right_x, bottom_y, width, raised_p, top_p, bot_p, left_p, right_p, clip_rect) struct frame *f; int left_x, top_y, right_x, bottom_y, width; int top_p, bot_p, left_p, right_p, raised_p; XRectangle *clip_rect; { Display *dpy = FRAME_X_DISPLAY (f); Window window = FRAME_X_WINDOW (f); int i; GC gc; if (raised_p) gc = f->output_data.x->white_relief.gc; else gc = f->output_data.x->black_relief.gc; XSetClipRectangles (dpy, gc, 0, 0, clip_rect, 1, Unsorted); /* Top. */ if (top_p) for (i = 0; i < width; ++i) XDrawLine (dpy, window, gc, left_x + i * left_p, top_y + i, right_x + 1 - i * right_p, top_y + i); /* Left. */ if (left_p) for (i = 0; i < width; ++i) XDrawLine (dpy, window, gc, left_x + i, top_y + i, left_x + i, bottom_y - i + 1); XSetClipMask (dpy, gc, None); if (raised_p) gc = f->output_data.x->black_relief.gc; else gc = f->output_data.x->white_relief.gc; XSetClipRectangles (dpy, gc, 0, 0, clip_rect, 1, Unsorted); /* Bottom. */ if (bot_p) for (i = 0; i < width; ++i) XDrawLine (dpy, window, gc, left_x + i * left_p, bottom_y - i, right_x + 1 - i * right_p, bottom_y - i); /* Right. */ if (right_p) for (i = 0; i < width; ++i) XDrawLine (dpy, window, gc, right_x - i, top_y + i + 1, right_x - i, bottom_y - i); XSetClipMask (dpy, gc, None); } /* Draw a box on frame F inside the rectangle given by LEFT_X, TOP_Y, RIGHT_X, and BOTTOM_Y. WIDTH is the thickness of the lines to draw, it must be >= 0. LEFT_P non-zero means draw a line on the left side of the rectangle. RIGHT_P non-zero means draw a line on the right side of the rectangle. CLIP_RECT is the clipping rectangle to use when drawing. */ static void x_draw_box_rect (s, left_x, top_y, right_x, bottom_y, width, left_p, right_p, clip_rect) struct glyph_string *s; int left_x, top_y, right_x, bottom_y, width, left_p, right_p; XRectangle *clip_rect; { XGCValues xgcv; XGetGCValues (s->display, s->gc, GCForeground, &xgcv); XSetForeground (s->display, s->gc, s->face->box_color); XSetClipRectangles (s->display, s->gc, 0, 0, clip_rect, 1, Unsorted); /* Top. */ XFillRectangle (s->display, s->window, s->gc, left_x, top_y, right_x - left_x + 1, width); /* Left. */ if (left_p) XFillRectangle (s->display, s->window, s->gc, left_x, top_y, width, bottom_y - top_y + 1); /* Bottom. */ XFillRectangle (s->display, s->window, s->gc, left_x, bottom_y - width + 1, right_x - left_x + 1, width); /* Right. */ if (right_p) XFillRectangle (s->display, s->window, s->gc, right_x - width + 1, top_y, width, bottom_y - top_y + 1); XSetForeground (s->display, s->gc, xgcv.foreground); XSetClipMask (s->display, s->gc, None); } /* Draw a box around glyph string S. */ static void x_draw_glyph_string_box (s) struct glyph_string *s; { int width, left_x, right_x, top_y, bottom_y, last_x, raised_p; int left_p, right_p; struct glyph *last_glyph; XRectangle clip_rect; last_x = ((s->row->full_width_p && !s->w->pseudo_window_p) ? WINDOW_RIGHT_EDGE_X (s->w) : window_box_right (s->w, s->area)); /* The glyph that may have a right box line. */ last_glyph = (s->cmp || s->img ? s->first_glyph : s->first_glyph + s->nchars - 1); width = abs (s->face->box_line_width); raised_p = s->face->box == FACE_RAISED_BOX; left_x = s->x; right_x = (s->row->full_width_p && s->extends_to_end_of_line_p ? last_x - 1 : min (last_x, s->x + s->background_width) - 1); top_y = s->y; bottom_y = top_y + s->height - 1; left_p = (s->first_glyph->left_box_line_p || (s->hl == DRAW_MOUSE_FACE && (s->prev == NULL || s->prev->hl != s->hl))); right_p = (last_glyph->right_box_line_p || (s->hl == DRAW_MOUSE_FACE && (s->next == NULL || s->next->hl != s->hl))); get_glyph_string_clip_rect (s, &clip_rect); if (s->face->box == FACE_SIMPLE_BOX) x_draw_box_rect (s, left_x, top_y, right_x, bottom_y, width, left_p, right_p, &clip_rect); else { x_setup_relief_colors (s); x_draw_relief_rect (s->f, left_x, top_y, right_x, bottom_y, width, raised_p, 1, 1, left_p, right_p, &clip_rect); } } /* Draw foreground of image glyph string S. */ static void x_draw_image_foreground (s) struct glyph_string *s; { int x = s->x; int y = s->ybase - image_ascent (s->img, s->face, &s->slice); /* If first glyph of S has a left box line, start drawing it to the right of that line. */ if (s->face->box != FACE_NO_BOX && s->first_glyph->left_box_line_p && s->slice.x == 0) x += abs (s->face->box_line_width); /* If there is a margin around the image, adjust x- and y-position by that margin. */ if (s->slice.x == 0) x += s->img->hmargin; if (s->slice.y == 0) y += s->img->vmargin; if (s->img->pixmap) { if (s->img->mask) { /* We can't set both a clip mask and use XSetClipRectangles because the latter also sets a clip mask. We also can't trust on the shape extension to be available (XShapeCombineRegion). So, compute the rectangle to draw manually. */ unsigned long mask = (GCClipMask | GCClipXOrigin | GCClipYOrigin | GCFunction); XGCValues xgcv; XRectangle clip_rect, image_rect, r; xgcv.clip_mask = s->img->mask; xgcv.clip_x_origin = x; xgcv.clip_y_origin = y; xgcv.function = GXcopy; XChangeGC (s->display, s->gc, mask, &xgcv); get_glyph_string_clip_rect (s, &clip_rect); image_rect.x = x; image_rect.y = y; image_rect.width = s->slice.width; image_rect.height = s->slice.height; if (x_intersect_rectangles (&clip_rect, &image_rect, &r)) XCopyArea (s->display, s->img->pixmap, s->window, s->gc, s->slice.x + r.x - x, s->slice.y + r.y - y, r.width, r.height, r.x, r.y); } else { XRectangle clip_rect, image_rect, r; get_glyph_string_clip_rect (s, &clip_rect); image_rect.x = x; image_rect.y = y; image_rect.width = s->slice.width; image_rect.height = s->slice.height; if (x_intersect_rectangles (&clip_rect, &image_rect, &r)) XCopyArea (s->display, s->img->pixmap, s->window, s->gc, s->slice.x + r.x - x, s->slice.y + r.y - y, r.width, r.height, r.x, r.y); /* When the image has a mask, we can expect that at least part of a mouse highlight or a block cursor will be visible. If the image doesn't have a mask, make a block cursor visible by drawing a rectangle around the image. I believe it's looking better if we do nothing here for mouse-face. */ if (s->hl == DRAW_CURSOR) { int r = s->img->relief; if (r < 0) r = -r; XDrawRectangle (s->display, s->window, s->gc, x - r, y - r, s->slice.width + r*2 - 1, s->slice.height + r*2 - 1); } } } else /* Draw a rectangle if image could not be loaded. */ XDrawRectangle (s->display, s->window, s->gc, x, y, s->slice.width - 1, s->slice.height - 1); } /* Draw a relief around the image glyph string S. */ static void x_draw_image_relief (s) struct glyph_string *s; { int x0, y0, x1, y1, thick, raised_p; XRectangle r; int x = s->x; int y = s->ybase - image_ascent (s->img, s->face, &s->slice); /* If first glyph of S has a left box line, start drawing it to the right of that line. */ if (s->face->box != FACE_NO_BOX && s->first_glyph->left_box_line_p && s->slice.x == 0) x += abs (s->face->box_line_width); /* If there is a margin around the image, adjust x- and y-position by that margin. */ if (s->slice.x == 0) x += s->img->hmargin; if (s->slice.y == 0) y += s->img->vmargin; if (s->hl == DRAW_IMAGE_SUNKEN || s->hl == DRAW_IMAGE_RAISED) { thick = tool_bar_button_relief >= 0 ? tool_bar_button_relief : DEFAULT_TOOL_BAR_BUTTON_RELIEF; raised_p = s->hl == DRAW_IMAGE_RAISED; } else { thick = abs (s->img->relief); raised_p = s->img->relief > 0; } x0 = x - thick; y0 = y - thick; x1 = x + s->slice.width + thick - 1; y1 = y + s->slice.height + thick - 1; x_setup_relief_colors (s); get_glyph_string_clip_rect (s, &r); x_draw_relief_rect (s->f, x0, y0, x1, y1, thick, raised_p, s->slice.y == 0, s->slice.y + s->slice.height == s->img->height, s->slice.x == 0, s->slice.x + s->slice.width == s->img->width, &r); } /* Draw the foreground of image glyph string S to PIXMAP. */ static void x_draw_image_foreground_1 (s, pixmap) struct glyph_string *s; Pixmap pixmap; { int x = 0; int y = s->ybase - s->y - image_ascent (s->img, s->face, &s->slice); /* If first glyph of S has a left box line, start drawing it to the right of that line. */ if (s->face->box != FACE_NO_BOX && s->first_glyph->left_box_line_p && s->slice.x == 0) x += abs (s->face->box_line_width); /* If there is a margin around the image, adjust x- and y-position by that margin. */ if (s->slice.x == 0) x += s->img->hmargin; if (s->slice.y == 0) y += s->img->vmargin; if (s->img->pixmap) { if (s->img->mask) { /* We can't set both a clip mask and use XSetClipRectangles because the latter also sets a clip mask. We also can't trust on the shape extension to be available (XShapeCombineRegion). So, compute the rectangle to draw manually. */ unsigned long mask = (GCClipMask | GCClipXOrigin | GCClipYOrigin | GCFunction); XGCValues xgcv; xgcv.clip_mask = s->img->mask; xgcv.clip_x_origin = x - s->slice.x; xgcv.clip_y_origin = y - s->slice.y; xgcv.function = GXcopy; XChangeGC (s->display, s->gc, mask, &xgcv); XCopyArea (s->display, s->img->pixmap, pixmap, s->gc, s->slice.x, s->slice.y, s->slice.width, s->slice.height, x, y); XSetClipMask (s->display, s->gc, None); } else { XCopyArea (s->display, s->img->pixmap, pixmap, s->gc, s->slice.x, s->slice.y, s->slice.width, s->slice.height, x, y); /* When the image has a mask, we can expect that at least part of a mouse highlight or a block cursor will be visible. If the image doesn't have a mask, make a block cursor visible by drawing a rectangle around the image. I believe it's looking better if we do nothing here for mouse-face. */ if (s->hl == DRAW_CURSOR) { int r = s->img->relief; if (r < 0) r = -r; XDrawRectangle (s->display, s->window, s->gc, x - r, y - r, s->slice.width + r*2 - 1, s->slice.height + r*2 - 1); } } } else /* Draw a rectangle if image could not be loaded. */ XDrawRectangle (s->display, pixmap, s->gc, x, y, s->slice.width - 1, s->slice.height - 1); } /* Draw part of the background of glyph string S. X, Y, W, and H give the rectangle to draw. */ static void x_draw_glyph_string_bg_rect (s, x, y, w, h) struct glyph_string *s; int x, y, w, h; { if (s->stippled_p) { /* Fill background with a stipple pattern. */ XSetFillStyle (s->display, s->gc, FillOpaqueStippled); XFillRectangle (s->display, s->window, s->gc, x, y, w, h); XSetFillStyle (s->display, s->gc, FillSolid); } else x_clear_glyph_string_rect (s, x, y, w, h); } /* Draw image glyph string S. s->y s->x +------------------------- | s->face->box | | +------------------------- | | s->img->margin | | | | +------------------- | | | the image */ static void x_draw_image_glyph_string (s) struct glyph_string *s; { int box_line_hwidth = abs (s->face->box_line_width); int box_line_vwidth = max (s->face->box_line_width, 0); int height; Pixmap pixmap = None; height = s->height; if (s->slice.y == 0) height -= box_line_vwidth; if (s->slice.y + s->slice.height >= s->img->height) height -= box_line_vwidth; /* Fill background with face under the image. Do it only if row is taller than image or if image has a clip mask to reduce flickering. */ s->stippled_p = s->face->stipple != 0; if (height > s->slice.height || s->img->hmargin || s->img->vmargin || s->img->mask || s->img->pixmap == 0 || s->width != s->background_width) { if (s->img->mask) { /* Create a pixmap as large as the glyph string. Fill it with the background color. Copy the image to it, using its mask. Copy the temporary pixmap to the display. */ Screen *screen = FRAME_X_SCREEN (s->f); int depth = DefaultDepthOfScreen (screen); /* Create a pixmap as large as the glyph string. */ pixmap = XCreatePixmap (s->display, s->window, s->background_width, s->height, depth); /* Don't clip in the following because we're working on the pixmap. */ XSetClipMask (s->display, s->gc, None); /* Fill the pixmap with the background color/stipple. */ if (s->stippled_p) { /* Fill background with a stipple pattern. */ XSetFillStyle (s->display, s->gc, FillOpaqueStippled); XFillRectangle (s->display, pixmap, s->gc, 0, 0, s->background_width, s->height); XSetFillStyle (s->display, s->gc, FillSolid); } else { XGCValues xgcv; XGetGCValues (s->display, s->gc, GCForeground | GCBackground, &xgcv); XSetForeground (s->display, s->gc, xgcv.background); XFillRectangle (s->display, pixmap, s->gc, 0, 0, s->background_width, s->height); XSetForeground (s->display, s->gc, xgcv.foreground); } } else { int x = s->x; int y = s->y; if (s->first_glyph->left_box_line_p && s->slice.x == 0) x += box_line_hwidth; if (s->slice.y == 0) y += box_line_vwidth; x_draw_glyph_string_bg_rect (s, x, y, s->background_width, height); } s->background_filled_p = 1; } /* Draw the foreground. */ if (pixmap != None) { x_draw_image_foreground_1 (s, pixmap); x_set_glyph_string_clipping (s); XCopyArea (s->display, pixmap, s->window, s->gc, 0, 0, s->background_width, s->height, s->x, s->y); XFreePixmap (s->display, pixmap); } else x_draw_image_foreground (s); /* If we must draw a relief around the image, do it. */ if (s->img->relief || s->hl == DRAW_IMAGE_RAISED || s->hl == DRAW_IMAGE_SUNKEN) x_draw_image_relief (s); } /* Draw stretch glyph string S. */ static void x_draw_stretch_glyph_string (s) struct glyph_string *s; { xassert (s->first_glyph->type == STRETCH_GLYPH); s->stippled_p = s->face->stipple != 0; if (s->hl == DRAW_CURSOR && !x_stretch_cursor_p) { /* If `x-stretch-block-cursor' is nil, don't draw a block cursor as wide as the stretch glyph. */ int width = min (FRAME_COLUMN_WIDTH (s->f), s->background_width); /* Draw cursor. */ x_draw_glyph_string_bg_rect (s, s->x, s->y, width, s->height); /* Clear rest using the GC of the original non-cursor face. */ if (width < s->background_width) { int x = s->x + width, y = s->y; int w = s->background_width - width, h = s->height; XRectangle r; GC gc; if (s->row->mouse_face_p && cursor_in_mouse_face_p (s->w)) { x_set_mouse_face_gc (s); gc = s->gc; } else gc = s->face->gc; get_glyph_string_clip_rect (s, &r); XSetClipRectangles (s->display, gc, 0, 0, &r, 1, Unsorted); if (s->face->stipple) { /* Fill background with a stipple pattern. */ XSetFillStyle (s->display, gc, FillOpaqueStippled); XFillRectangle (s->display, s->window, gc, x, y, w, h); XSetFillStyle (s->display, gc, FillSolid); } else { XGCValues xgcv; XGetGCValues (s->display, gc, GCForeground | GCBackground, &xgcv); XSetForeground (s->display, gc, xgcv.background); XFillRectangle (s->display, s->window, gc, x, y, w, h); XSetForeground (s->display, gc, xgcv.foreground); } } } else if (!s->background_filled_p) x_draw_glyph_string_bg_rect (s, s->x, s->y, s->background_width, s->height); s->background_filled_p = 1; } /* Draw glyph string S. */ static void x_draw_glyph_string (s) struct glyph_string *s; { int relief_drawn_p = 0; /* If S draws into the background of its successor, draw the background of the successor first so that S can draw into it. This makes S->next use XDrawString instead of XDrawImageString. */ if (s->next && s->right_overhang && !s->for_overlaps_p) { xassert (s->next->img == NULL); x_set_glyph_string_gc (s->next); x_set_glyph_string_clipping (s->next); x_draw_glyph_string_background (s->next, 1); } /* Set up S->gc, set clipping and draw S. */ x_set_glyph_string_gc (s); /* Draw relief (if any) in advance for char/composition so that the glyph string can be drawn over it. */ if (!s->for_overlaps_p && s->face->box != FACE_NO_BOX && (s->first_glyph->type == CHAR_GLYPH || s->first_glyph->type == COMPOSITE_GLYPH)) { x_set_glyph_string_clipping (s); x_draw_glyph_string_background (s, 1); x_draw_glyph_string_box (s); x_set_glyph_string_clipping (s); relief_drawn_p = 1; } else x_set_glyph_string_clipping (s); switch (s->first_glyph->type) { case IMAGE_GLYPH: x_draw_image_glyph_string (s); break; case STRETCH_GLYPH: x_draw_stretch_glyph_string (s); break; case CHAR_GLYPH: if (s->for_overlaps_p) s->background_filled_p = 1; else x_draw_glyph_string_background (s, 0); x_draw_glyph_string_foreground (s); break; case COMPOSITE_GLYPH: if (s->for_overlaps_p || s->gidx > 0) s->background_filled_p = 1; else x_draw_glyph_string_background (s, 1); x_draw_composite_glyph_string_foreground (s); break; default: abort (); } if (!s->for_overlaps_p) { /* Draw underline. */ if (s->face->underline_p) { unsigned long tem, h; int y; /* Get the underline thickness. Default is 1 pixel. */ if (!XGetFontProperty (s->font, XA_UNDERLINE_THICKNESS, &h)) h = 1; /* Get the underline position. This is the recommended vertical offset in pixels from the baseline to the top of the underline. This is a signed value according to the specs, and its default is ROUND ((maximum descent) / 2), with ROUND(x) = floor (x + 0.5) */ if (x_use_underline_position_properties && XGetFontProperty (s->font, XA_UNDERLINE_POSITION, &tem)) y = s->ybase + (long) tem; else if (s->face->font) y = s->ybase + (s->face->font->max_bounds.descent + 1) / 2; else y = s->y + s->height - h; if (s->face->underline_defaulted_p) XFillRectangle (s->display, s->window, s->gc, s->x, y, s->width, h); else { XGCValues xgcv; XGetGCValues (s->display, s->gc, GCForeground, &xgcv); XSetForeground (s->display, s->gc, s->face->underline_color); XFillRectangle (s->display, s->window, s->gc, s->x, y, s->width, h); XSetForeground (s->display, s->gc, xgcv.foreground); } } /* Draw overline. */ if (s->face->overline_p) { unsigned long dy = 0, h = 1; if (s->face->overline_color_defaulted_p) XFillRectangle (s->display, s->window, s->gc, s->x, s->y + dy, s->width, h); else { XGCValues xgcv; XGetGCValues (s->display, s->gc, GCForeground, &xgcv); XSetForeground (s->display, s->gc, s->face->overline_color); XFillRectangle (s->display, s->window, s->gc, s->x, s->y + dy, s->width, h); XSetForeground (s->display, s->gc, xgcv.foreground); } } /* Draw strike-through. */ if (s->face->strike_through_p) { unsigned long h = 1; unsigned long dy = (s->height - h) / 2; if (s->face->strike_through_color_defaulted_p) XFillRectangle (s->display, s->window, s->gc, s->x, s->y + dy, s->width, h); else { XGCValues xgcv; XGetGCValues (s->display, s->gc, GCForeground, &xgcv); XSetForeground (s->display, s->gc, s->face->strike_through_color); XFillRectangle (s->display, s->window, s->gc, s->x, s->y + dy, s->width, h); XSetForeground (s->display, s->gc, xgcv.foreground); } } /* Draw relief if not yet drawn. */ if (!relief_drawn_p && s->face->box != FACE_NO_BOX) x_draw_glyph_string_box (s); } /* Reset clipping. */ XSetClipMask (s->display, s->gc, None); } /* Shift display to make room for inserted glyphs. */ void x_shift_glyphs_for_insert (f, x, y, width, height, shift_by) struct frame *f; int x, y, width, height, shift_by; { XCopyArea (FRAME_X_DISPLAY (f), FRAME_X_WINDOW (f), FRAME_X_WINDOW (f), f->output_data.x->normal_gc, x, y, width, height, x + shift_by, y); } /* Delete N glyphs at the nominal cursor position. Not implemented for X frames. */ static void x_delete_glyphs (n) register int n; { abort (); } /* Like XClearArea, but check that WIDTH and HEIGHT are reasonable. If they are <= 0, this is probably an error. */ void x_clear_area (dpy, window, x, y, width, height, exposures) Display *dpy; Window window; int x, y; int width, height; int exposures; { xassert (width > 0 && height > 0); XClearArea (dpy, window, x, y, width, height, exposures); } /* Clear entire frame. If updating_frame is non-null, clear that frame. Otherwise clear the selected frame. */ static void x_clear_frame () { struct frame *f; if (updating_frame) f = updating_frame; else f = SELECTED_FRAME (); /* Clearing the frame will erase any cursor, so mark them all as no longer visible. */ mark_window_cursors_off (XWINDOW (FRAME_ROOT_WINDOW (f))); output_cursor.hpos = output_cursor.vpos = 0; output_cursor.x = -1; /* We don't set the output cursor here because there will always follow an explicit cursor_to. */ BLOCK_INPUT; XClearWindow (FRAME_X_DISPLAY (f), FRAME_X_WINDOW (f)); /* We have to clear the scroll bars, too. If we have changed colors or something like that, then they should be notified. */ x_scroll_bar_clear (f); XFlush (FRAME_X_DISPLAY (f)); UNBLOCK_INPUT; } /* Invert the middle quarter of the frame for .15 sec. */ /* We use the select system call to do the waiting, so we have to make sure it's available. If it isn't, we just won't do visual bells. */ #if defined (HAVE_TIMEVAL) && defined (HAVE_SELECT) /* Subtract the `struct timeval' values X and Y, storing the result in *RESULT. Return 1 if the difference is negative, otherwise 0. */ static int timeval_subtract (result, x, y) struct timeval *result, x, y; { /* Perform the carry for the later subtraction by updating y. This is safer because on some systems the tv_sec member is unsigned. */ if (x.tv_usec < y.tv_usec) { int nsec = (y.tv_usec - x.tv_usec) / 1000000 + 1; y.tv_usec -= 1000000 * nsec; y.tv_sec += nsec; } if (x.tv_usec - y.tv_usec > 1000000) { int nsec = (y.tv_usec - x.tv_usec) / 1000000; y.tv_usec += 1000000 * nsec; y.tv_sec -= nsec; } /* Compute the time remaining to wait. tv_usec is certainly positive. */ result->tv_sec = x.tv_sec - y.tv_sec; result->tv_usec = x.tv_usec - y.tv_usec; /* Return indication of whether the result should be considered negative. */ return x.tv_sec < y.tv_sec; } void XTflash (f) struct frame *f; { BLOCK_INPUT; { GC gc; /* Create a GC that will use the GXxor function to flip foreground pixels into background pixels. */ { XGCValues values; values.function = GXxor; values.foreground = (f->output_data.x->foreground_pixel ^ f->output_data.x->background_pixel); gc = XCreateGC (FRAME_X_DISPLAY (f), FRAME_X_WINDOW (f), GCFunction | GCForeground, &values); } { /* Get the height not including a menu bar widget. */ int height = FRAME_TEXT_LINES_TO_PIXEL_HEIGHT (f, FRAME_LINES (f)); /* Height of each line to flash. */ int flash_height = FRAME_LINE_HEIGHT (f); /* These will be the left and right margins of the rectangles. */ int flash_left = FRAME_INTERNAL_BORDER_WIDTH (f); int flash_right = FRAME_PIXEL_WIDTH (f) - FRAME_INTERNAL_BORDER_WIDTH (f); int width; /* Don't flash the area between a scroll bar and the frame edge it is next to. */ switch (FRAME_VERTICAL_SCROLL_BAR_TYPE (f)) { case vertical_scroll_bar_left: flash_left += VERTICAL_SCROLL_BAR_WIDTH_TRIM; break; case vertical_scroll_bar_right: flash_right -= VERTICAL_SCROLL_BAR_WIDTH_TRIM; break; default: break; } width = flash_right - flash_left; /* If window is tall, flash top and bottom line. */ if (height > 3 * FRAME_LINE_HEIGHT (f)) { XFillRectangle (FRAME_X_DISPLAY (f), FRAME_X_WINDOW (f), gc, flash_left, (FRAME_INTERNAL_BORDER_WIDTH (f) + FRAME_TOOL_BAR_LINES (f) * FRAME_LINE_HEIGHT (f)), width, flash_height); XFillRectangle (FRAME_X_DISPLAY (f), FRAME_X_WINDOW (f), gc, flash_left, (height - flash_height - FRAME_INTERNAL_BORDER_WIDTH (f)), width, flash_height); } else /* If it is short, flash it all. */ XFillRectangle (FRAME_X_DISPLAY (f), FRAME_X_WINDOW (f), gc, flash_left, FRAME_INTERNAL_BORDER_WIDTH (f), width, height - 2 * FRAME_INTERNAL_BORDER_WIDTH (f)); x_flush (f); { struct timeval wakeup; EMACS_GET_TIME (wakeup); /* Compute time to wait until, propagating carry from usecs. */ wakeup.tv_usec += 150000; wakeup.tv_sec += (wakeup.tv_usec / 1000000); wakeup.tv_usec %= 1000000; /* Keep waiting until past the time wakeup or any input gets available. */ while (! detect_input_pending ()) { struct timeval current; struct timeval timeout; EMACS_GET_TIME (current); /* Break if result would be negative. */ if (timeval_subtract (¤t, wakeup, current)) break; /* How long `select' should wait. */ timeout.tv_sec = 0; timeout.tv_usec = 10000; /* Try to wait that long--but we might wake up sooner. */ select (0, NULL, NULL, NULL, &timeout); } } /* If window is tall, flash top and bottom line. */ if (height > 3 * FRAME_LINE_HEIGHT (f)) { XFillRectangle (FRAME_X_DISPLAY (f), FRAME_X_WINDOW (f), gc, flash_left, (FRAME_INTERNAL_BORDER_WIDTH (f) + FRAME_TOOL_BAR_LINES (f) * FRAME_LINE_HEIGHT (f)), width, flash_height); XFillRectangle (FRAME_X_DISPLAY (f), FRAME_X_WINDOW (f), gc, flash_left, (height - flash_height - FRAME_INTERNAL_BORDER_WIDTH (f)), width, flash_height); } else /* If it is short, flash it all. */ XFillRectangle (FRAME_X_DISPLAY (f), FRAME_X_WINDOW (f), gc, flash_left, FRAME_INTERNAL_BORDER_WIDTH (f), width, height - 2 * FRAME_INTERNAL_BORDER_WIDTH (f)); XFreeGC (FRAME_X_DISPLAY (f), gc); x_flush (f); } } UNBLOCK_INPUT; } #endif /* defined (HAVE_TIMEVAL) && defined (HAVE_SELECT) */ /* Make audible bell. */ void XTring_bell () { struct frame *f = SELECTED_FRAME (); if (FRAME_X_DISPLAY (f)) { #if defined (HAVE_TIMEVAL) && defined (HAVE_SELECT) if (visible_bell) XTflash (f); else #endif { BLOCK_INPUT; XBell (FRAME_X_DISPLAY (f), 0); XFlush (FRAME_X_DISPLAY (f)); UNBLOCK_INPUT; } } } /* Specify how many text lines, from the top of the window, should be affected by insert-lines and delete-lines operations. This, and those operations, are used only within an update that is bounded by calls to x_update_begin and x_update_end. */ static void XTset_terminal_window (n) register int n; { /* This function intentionally left blank. */ } /*********************************************************************** Line Dance ***********************************************************************/ /* Perform an insert-lines or delete-lines operation, inserting N lines or deleting -N lines at vertical position VPOS. */ static void x_ins_del_lines (vpos, n) int vpos, n; { abort (); } /* Scroll part of the display as described by RUN. */ static void x_scroll_run (w, run) struct window *w; struct run *run; { struct frame *f = XFRAME (w->frame); int x, y, width, height, from_y, to_y, bottom_y; /* Get frame-relative bounding box of the text display area of W, without mode lines. Include in this box the left and right fringe of W. */ window_box (w, -1, &x, &y, &width, &height); from_y = WINDOW_TO_FRAME_PIXEL_Y (w, run->current_y); to_y = WINDOW_TO_FRAME_PIXEL_Y (w, run->desired_y); bottom_y = y + height; if (to_y < from_y) { /* Scrolling up. Make sure we don't copy part of the mode line at the bottom. */ if (from_y + run->height > bottom_y) height = bottom_y - from_y; else height = run->height; } else { /* Scolling down. Make sure we don't copy over the mode line. at the bottom. */ if (to_y + run->height > bottom_y) height = bottom_y - to_y; else height = run->height; } BLOCK_INPUT; /* Cursor off. Will be switched on again in x_update_window_end. */ updated_window = w; x_clear_cursor (w); XCopyArea (FRAME_X_DISPLAY (f), FRAME_X_WINDOW (f), FRAME_X_WINDOW (f), f->output_data.x->normal_gc, x, from_y, width, height, x, to_y); UNBLOCK_INPUT; } /*********************************************************************** Exposure Events ***********************************************************************/ static void frame_highlight (f) struct frame *f; { /* We used to only do this if Vx_no_window_manager was non-nil, but the ICCCM (section 4.1.6) says that the window's border pixmap and border pixel are window attributes which are "private to the client", so we can always change it to whatever we want. */ BLOCK_INPUT; XSetWindowBorder (FRAME_X_DISPLAY (f), FRAME_X_WINDOW (f), f->output_data.x->border_pixel); UNBLOCK_INPUT; x_update_cursor (f, 1); } static void frame_unhighlight (f) struct frame *f; { /* We used to only do this if Vx_no_window_manager was non-nil, but the ICCCM (section 4.1.6) says that the window's border pixmap and border pixel are window attributes which are "private to the client", so we can always change it to whatever we want. */ BLOCK_INPUT; XSetWindowBorderPixmap (FRAME_X_DISPLAY (f), FRAME_X_WINDOW (f), f->output_data.x->border_tile); UNBLOCK_INPUT; x_update_cursor (f, 1); } /* The focus has changed. Update the frames as necessary to reflect the new situation. Note that we can't change the selected frame here, because the Lisp code we are interrupting might become confused. Each event gets marked with the frame in which it occurred, so the Lisp code can tell when the switch took place by examining the events. */ static void x_new_focus_frame (dpyinfo, frame) struct x_display_info *dpyinfo; struct frame *frame; { struct frame *old_focus = dpyinfo->x_focus_frame; if (frame != dpyinfo->x_focus_frame) { /* Set this before calling other routines, so that they see the correct value of x_focus_frame. */ dpyinfo->x_focus_frame = frame; if (old_focus && old_focus->auto_lower) x_lower_frame (old_focus); #if 0 selected_frame = frame; XSETFRAME (XWINDOW (selected_frame->selected_window)->frame, selected_frame); Fselect_window (selected_frame->selected_window, Qnil); choose_minibuf_frame (); #endif /* ! 0 */ if (dpyinfo->x_focus_frame && dpyinfo->x_focus_frame->auto_raise) pending_autoraise_frame = dpyinfo->x_focus_frame; else pending_autoraise_frame = 0; } x_frame_rehighlight (dpyinfo); } /* Handle FocusIn and FocusOut state changes for FRAME. If FRAME has focus and there exists more than one frame, puts a FOCUS_IN_EVENT into *BUFP. */ static void x_focus_changed (type, state, dpyinfo, frame, bufp) int type; int state; struct x_display_info *dpyinfo; struct frame *frame; struct input_event *bufp; { if (type == FocusIn) { if (dpyinfo->x_focus_event_frame != frame) { x_new_focus_frame (dpyinfo, frame); dpyinfo->x_focus_event_frame = frame; /* Don't stop displaying the initial startup message for a switch-frame event we don't need. */ if (GC_NILP (Vterminal_frame) && GC_CONSP (Vframe_list) && !GC_NILP (XCDR (Vframe_list))) { bufp->kind = FOCUS_IN_EVENT; XSETFRAME (bufp->frame_or_window, frame); } } frame->output_data.x->focus_state |= state; #ifdef HAVE_X_I18N if (FRAME_XIC (frame)) XSetICFocus (FRAME_XIC (frame)); #endif } else if (type == FocusOut) { frame->output_data.x->focus_state &= ~state; if (dpyinfo->x_focus_event_frame == frame) { dpyinfo->x_focus_event_frame = 0; x_new_focus_frame (dpyinfo, 0); } #ifdef HAVE_X_I18N if (FRAME_XIC (frame)) XUnsetICFocus (FRAME_XIC (frame)); #endif } } /* The focus may have changed. Figure out if it is a real focus change, by checking both FocusIn/Out and Enter/LeaveNotify events. Returns FOCUS_IN_EVENT event in *BUFP. */ static void x_detect_focus_change (dpyinfo, event, bufp) struct x_display_info *dpyinfo; XEvent *event; struct input_event *bufp; { struct frame *frame; frame = x_any_window_to_frame (dpyinfo, event->xany.window); if (! frame) return; switch (event->type) { case EnterNotify: case LeaveNotify: { struct frame *focus_frame = dpyinfo->x_focus_event_frame; int focus_state = focus_frame ? focus_frame->output_data.x->focus_state : 0; if (event->xcrossing.detail != NotifyInferior && event->xcrossing.focus && ! (focus_state & FOCUS_EXPLICIT)) x_focus_changed ((event->type == EnterNotify ? FocusIn : FocusOut), FOCUS_IMPLICIT, dpyinfo, frame, bufp); } break; case FocusIn: case FocusOut: x_focus_changed (event->type, (event->xfocus.detail == NotifyPointer ? FOCUS_IMPLICIT : FOCUS_EXPLICIT), dpyinfo, frame, bufp); break; } } /* Handle an event saying the mouse has moved out of an Emacs frame. */ void x_mouse_leave (dpyinfo) struct x_display_info *dpyinfo; { x_new_focus_frame (dpyinfo, dpyinfo->x_focus_event_frame); } /* The focus has changed, or we have redirected a frame's focus to another frame (this happens when a frame uses a surrogate mini-buffer frame). Shift the highlight as appropriate. The FRAME argument doesn't necessarily have anything to do with which frame is being highlighted or un-highlighted; we only use it to find the appropriate X display info. */ static void XTframe_rehighlight (frame) struct frame *frame; { x_frame_rehighlight (FRAME_X_DISPLAY_INFO (frame)); } static void x_frame_rehighlight (dpyinfo) struct x_display_info *dpyinfo; { struct frame *old_highlight = dpyinfo->x_highlight_frame; if (dpyinfo->x_focus_frame) { dpyinfo->x_highlight_frame = ((GC_FRAMEP (FRAME_FOCUS_FRAME (dpyinfo->x_focus_frame))) ? XFRAME (FRAME_FOCUS_FRAME (dpyinfo->x_focus_frame)) : dpyinfo->x_focus_frame); if (! FRAME_LIVE_P (dpyinfo->x_highlight_frame)) { FRAME_FOCUS_FRAME (dpyinfo->x_focus_frame) = Qnil; dpyinfo->x_highlight_frame = dpyinfo->x_focus_frame; } } else dpyinfo->x_highlight_frame = 0; if (dpyinfo->x_highlight_frame != old_highlight) { if (old_highlight) frame_unhighlight (old_highlight); if (dpyinfo->x_highlight_frame) frame_highlight (dpyinfo->x_highlight_frame); } } /* Keyboard processing - modifier keys, vendor-specific keysyms, etc. */ /* Initialize mode_switch_bit and modifier_meaning. */ static void x_find_modifier_meanings (dpyinfo) struct x_display_info *dpyinfo; { int min_code, max_code; KeySym *syms; int syms_per_code; XModifierKeymap *mods; dpyinfo->meta_mod_mask = 0; dpyinfo->shift_lock_mask = 0; dpyinfo->alt_mod_mask = 0; dpyinfo->super_mod_mask = 0; dpyinfo->hyper_mod_mask = 0; #ifdef HAVE_X11R4 XDisplayKeycodes (dpyinfo->display, &min_code, &max_code); #else min_code = dpyinfo->display->min_keycode; max_code = dpyinfo->display->max_keycode; #endif syms = XGetKeyboardMapping (dpyinfo->display, min_code, max_code - min_code + 1, &syms_per_code); mods = XGetModifierMapping (dpyinfo->display); /* Scan the modifier table to see which modifier bits the Meta and Alt keysyms are on. */ { int row, col; /* The row and column in the modifier table. */ int found_alt_or_meta; for (row = 3; row < 8; row++) { found_alt_or_meta = 0; for (col = 0; col < mods->max_keypermod; col++) { KeyCode code = mods->modifiermap[(row * mods->max_keypermod) + col]; /* Zeroes are used for filler. Skip them. */ if (code == 0) continue; /* Are any of this keycode's keysyms a meta key? */ { int code_col; for (code_col = 0; code_col < syms_per_code; code_col++) { int sym = syms[((code - min_code) * syms_per_code) + code_col]; switch (sym) { case XK_Meta_L: case XK_Meta_R: found_alt_or_meta = 1; dpyinfo->meta_mod_mask |= (1 << row); break; case XK_Alt_L: case XK_Alt_R: found_alt_or_meta = 1; dpyinfo->alt_mod_mask |= (1 << row); break; case XK_Hyper_L: case XK_Hyper_R: if (!found_alt_or_meta) dpyinfo->hyper_mod_mask |= (1 << row); code_col = syms_per_code; col = mods->max_keypermod; break; case XK_Super_L: case XK_Super_R: if (!found_alt_or_meta) dpyinfo->super_mod_mask |= (1 << row); code_col = syms_per_code; col = mods->max_keypermod; break; case XK_Shift_Lock: /* Ignore this if it's not on the lock modifier. */ if (!found_alt_or_meta && ((1 << row) == LockMask)) dpyinfo->shift_lock_mask = LockMask; code_col = syms_per_code; col = mods->max_keypermod; break; } } } } } } /* If we couldn't find any meta keys, accept any alt keys as meta keys. */ if (! dpyinfo->meta_mod_mask) { dpyinfo->meta_mod_mask = dpyinfo->alt_mod_mask; dpyinfo->alt_mod_mask = 0; } /* If some keys are both alt and meta, make them just meta, not alt. */ if (dpyinfo->alt_mod_mask & dpyinfo->meta_mod_mask) { dpyinfo->alt_mod_mask &= ~dpyinfo->meta_mod_mask; } XFree ((char *) syms); XFreeModifiermap (mods); } /* Convert between the modifier bits X uses and the modifier bits Emacs uses. */ static unsigned int x_x_to_emacs_modifiers (dpyinfo, state) struct x_display_info *dpyinfo; unsigned int state; { EMACS_UINT mod_meta = meta_modifier; EMACS_UINT mod_alt = alt_modifier; EMACS_UINT mod_hyper = hyper_modifier; EMACS_UINT mod_super = super_modifier; Lisp_Object tem; tem = Fget (Vx_alt_keysym, Qmodifier_value); if (! EQ (tem, Qnil)) mod_alt = XUINT (tem); tem = Fget (Vx_meta_keysym, Qmodifier_value); if (! EQ (tem, Qnil)) mod_meta = XUINT (tem); tem = Fget (Vx_hyper_keysym, Qmodifier_value); if (! EQ (tem, Qnil)) mod_hyper = XUINT (tem); tem = Fget (Vx_super_keysym, Qmodifier_value); if (! EQ (tem, Qnil)) mod_super = XUINT (tem); return ( ((state & (ShiftMask | dpyinfo->shift_lock_mask)) ? shift_modifier : 0) | ((state & ControlMask) ? ctrl_modifier : 0) | ((state & dpyinfo->meta_mod_mask) ? mod_meta : 0) | ((state & dpyinfo->alt_mod_mask) ? mod_alt : 0) | ((state & dpyinfo->super_mod_mask) ? mod_super : 0) | ((state & dpyinfo->hyper_mod_mask) ? mod_hyper : 0)); } static unsigned int x_emacs_to_x_modifiers (dpyinfo, state) struct x_display_info *dpyinfo; unsigned int state; { EMACS_UINT mod_meta = meta_modifier; EMACS_UINT mod_alt = alt_modifier; EMACS_UINT mod_hyper = hyper_modifier; EMACS_UINT mod_super = super_modifier; Lisp_Object tem; tem = Fget (Vx_alt_keysym, Qmodifier_value); if (! EQ (tem, Qnil)) mod_alt = XUINT (tem); tem = Fget (Vx_meta_keysym, Qmodifier_value); if (! EQ (tem, Qnil)) mod_meta = XUINT (tem); tem = Fget (Vx_hyper_keysym, Qmodifier_value); if (! EQ (tem, Qnil)) mod_hyper = XUINT (tem); tem = Fget (Vx_super_keysym, Qmodifier_value); if (! EQ (tem, Qnil)) mod_super = XUINT (tem); return ( ((state & mod_alt) ? dpyinfo->alt_mod_mask : 0) | ((state & mod_super) ? dpyinfo->super_mod_mask : 0) | ((state & mod_hyper) ? dpyinfo->hyper_mod_mask : 0) | ((state & shift_modifier) ? ShiftMask : 0) | ((state & ctrl_modifier) ? ControlMask : 0) | ((state & mod_meta) ? dpyinfo->meta_mod_mask : 0)); } /* Convert a keysym to its name. */ char * x_get_keysym_name (keysym) KeySym keysym; { char *value; BLOCK_INPUT; value = XKeysymToString (keysym); UNBLOCK_INPUT; return value; } /* Mouse clicks and mouse movement. Rah. */ /* Prepare a mouse-event in *RESULT for placement in the input queue. If the event is a button press, then note that we have grabbed the mouse. */ static Lisp_Object construct_mouse_click (result, event, f) struct input_event *result; XButtonEvent *event; struct frame *f; { /* Make the event type NO_EVENT; we'll change that when we decide otherwise. */ result->kind = MOUSE_CLICK_EVENT; result->code = event->button - Button1; result->timestamp = event->time; result->modifiers = (x_x_to_emacs_modifiers (FRAME_X_DISPLAY_INFO (f), event->state) | (event->type == ButtonRelease ? up_modifier : down_modifier)); XSETINT (result->x, event->x); XSETINT (result->y, event->y); XSETFRAME (result->frame_or_window, f); result->arg = Qnil; return Qnil; } /* Function to report a mouse movement to the mainstream Emacs code. The input handler calls this. We have received a mouse movement event, which is given in *event. If the mouse is over a different glyph than it was last time, tell the mainstream emacs code by setting mouse_moved. If not, ask for another motion event, so we can check again the next time it moves. */ static XMotionEvent last_mouse_motion_event; static Lisp_Object last_mouse_motion_frame; static void note_mouse_movement (frame, event) FRAME_PTR frame; XMotionEvent *event; { last_mouse_movement_time = event->time; last_mouse_motion_event = *event; XSETFRAME (last_mouse_motion_frame, frame); if (event->window != FRAME_X_WINDOW (frame)) { frame->mouse_moved = 1; last_mouse_scroll_bar = Qnil; note_mouse_highlight (frame, -1, -1); } /* Has the mouse moved off the glyph it was on at the last sighting? */ else if (event->x < last_mouse_glyph.x || event->x >= last_mouse_glyph.x + last_mouse_glyph.width || event->y < last_mouse_glyph.y || event->y >= last_mouse_glyph.y + last_mouse_glyph.height) { frame->mouse_moved = 1; last_mouse_scroll_bar = Qnil; note_mouse_highlight (frame, event->x, event->y); } } /************************************************************************ Mouse Face ************************************************************************/ static void redo_mouse_highlight () { if (!NILP (last_mouse_motion_frame) && FRAME_LIVE_P (XFRAME (last_mouse_motion_frame))) note_mouse_highlight (XFRAME (last_mouse_motion_frame), last_mouse_motion_event.x, last_mouse_motion_event.y); } static int glyph_rect P_ ((struct frame *f, int, int, XRectangle *)); /* Try to determine frame pixel position and size of the glyph under frame pixel coordinates X/Y on frame F . Return the position and size in *RECT. Value is non-zero if we could compute these values. */ static int glyph_rect (f, x, y, rect) struct frame *f; int x, y; XRectangle *rect; { Lisp_Object window; struct window *w; struct glyph_row *r, *end_row; window = window_from_coordinates (f, x, y, 0, &x, &y, 0); if (NILP (window)) return 0; w = XWINDOW (window); r = MATRIX_FIRST_TEXT_ROW (w->current_matrix); end_row = r + w->current_matrix->nrows - 1; for (; r < end_row && r->enabled_p; ++r) { if (r->y >= y) { struct glyph *g = r->glyphs[TEXT_AREA]; struct glyph *end = g + r->used[TEXT_AREA]; int gx = r->x; while (g < end && gx < x) gx += g->pixel_width, ++g; if (g < end) { rect->width = g->pixel_width; rect->height = r->height; rect->x = WINDOW_TO_FRAME_PIXEL_X (w, gx); rect->y = WINDOW_TO_FRAME_PIXEL_Y (w, r->y); return 1; } break; } } return 0; } /* Return the current position of the mouse. *FP should be a frame which indicates which display to ask about. If the mouse movement started in a scroll bar, set *FP, *BAR_WINDOW, and *PART to the frame, window, and scroll bar part that the mouse is over. Set *X and *Y to the portion and whole of the mouse's position on the scroll bar. If the mouse movement started elsewhere, set *FP to the frame the mouse is on, *BAR_WINDOW to nil, and *X and *Y to the character cell the mouse is over. Set *TIME to the server time-stamp for the time at which the mouse was at this position. Don't store anything if we don't have a valid set of values to report. This clears the mouse_moved flag, so we can wait for the next mouse movement. */ static void XTmouse_position (fp, insist, bar_window, part, x, y, time) FRAME_PTR *fp; int insist; Lisp_Object *bar_window; enum scroll_bar_part *part; Lisp_Object *x, *y; unsigned long *time; { FRAME_PTR f1; BLOCK_INPUT; if (! NILP (last_mouse_scroll_bar) && insist == 0) x_scroll_bar_report_motion (fp, bar_window, part, x, y, time); else { Window root; int root_x, root_y; Window dummy_window; int dummy; Lisp_Object frame, tail; /* Clear the mouse-moved flag for every frame on this display. */ FOR_EACH_FRAME (tail, frame) if (FRAME_X_DISPLAY (XFRAME (frame)) == FRAME_X_DISPLAY (*fp)) XFRAME (frame)->mouse_moved = 0; last_mouse_scroll_bar = Qnil; /* Figure out which root window we're on. */ XQueryPointer (FRAME_X_DISPLAY (*fp), DefaultRootWindow (FRAME_X_DISPLAY (*fp)), /* The root window which contains the pointer. */ &root, /* Trash which we can't trust if the pointer is on a different screen. */ &dummy_window, /* The position on that root window. */ &root_x, &root_y, /* More trash we can't trust. */ &dummy, &dummy, /* Modifier keys and pointer buttons, about which we don't care. */ (unsigned int *) &dummy); /* Now we have a position on the root; find the innermost window containing the pointer. */ { Window win, child; int win_x, win_y; int parent_x = 0, parent_y = 0; int count; win = root; /* XTranslateCoordinates can get errors if the window structure is changing at the same time this function is running. So at least we must not crash from them. */ count = x_catch_errors (FRAME_X_DISPLAY (*fp)); if (FRAME_X_DISPLAY_INFO (*fp)->grabbed && last_mouse_frame && FRAME_LIVE_P (last_mouse_frame)) { /* If mouse was grabbed on a frame, give coords for that frame even if the mouse is now outside it. */ XTranslateCoordinates (FRAME_X_DISPLAY (*fp), /* From-window, to-window. */ root, FRAME_X_WINDOW (last_mouse_frame), /* From-position, to-position. */ root_x, root_y, &win_x, &win_y, /* Child of win. */ &child); f1 = last_mouse_frame; } else { while (1) { XTranslateCoordinates (FRAME_X_DISPLAY (*fp), /* From-window, to-window. */ root, win, /* From-position, to-position. */ root_x, root_y, &win_x, &win_y, /* Child of win. */ &child); if (child == None || child == win) break; win = child; parent_x = win_x; parent_y = win_y; } /* Now we know that: win is the innermost window containing the pointer (XTC says it has no child containing the pointer), win_x and win_y are the pointer's position in it (XTC did this the last time through), and parent_x and parent_y are the pointer's position in win's parent. (They are what win_x and win_y were when win was child. If win is the root window, it has no parent, and parent_{x,y} are invalid, but that's okay, because we'll never use them in that case.) */ /* Is win one of our frames? */ f1 = x_any_window_to_frame (FRAME_X_DISPLAY_INFO (*fp), win); #ifdef USE_X_TOOLKIT /* If we end up with the menu bar window, say it's not on the frame. */ if (f1 != NULL && f1->output_data.x->menubar_widget && win == XtWindow (f1->output_data.x->menubar_widget)) f1 = NULL; #endif /* USE_X_TOOLKIT */ } if (x_had_errors_p (FRAME_X_DISPLAY (*fp))) f1 = 0; x_uncatch_errors (FRAME_X_DISPLAY (*fp), count); /* If not, is it one of our scroll bars? */ if (! f1) { struct scroll_bar *bar; bar = x_window_to_scroll_bar (FRAME_X_DISPLAY (*fp), win); if (bar) { f1 = XFRAME (WINDOW_FRAME (XWINDOW (bar->window))); win_x = parent_x; win_y = parent_y; } } if (f1 == 0 && insist > 0) f1 = SELECTED_FRAME (); if (f1) { /* Ok, we found a frame. Store all the values. last_mouse_glyph is a rectangle used to reduce the generation of mouse events. To not miss any motion events, we must divide the frame into rectangles of the size of the smallest character that could be displayed on it, i.e. into the same rectangles that matrices on the frame are divided into. */ int width, height, gx, gy; XRectangle rect; if (glyph_rect (f1, win_x, win_y, &rect)) last_mouse_glyph = rect; else { width = FRAME_SMALLEST_CHAR_WIDTH (f1); height = FRAME_SMALLEST_FONT_HEIGHT (f1); gx = win_x; gy = win_y; /* Arrange for the division in FRAME_PIXEL_X_TO_COL etc. to round down even for negative values. */ if (gx < 0) gx -= width - 1; if (gy < 0) gy -= height - 1; gx = (gx + width - 1) / width * width; gy = (gy + height - 1) / height * height; last_mouse_glyph.width = width; last_mouse_glyph.height = height; last_mouse_glyph.x = gx; last_mouse_glyph.y = gy; } *bar_window = Qnil; *part = 0; *fp = f1; XSETINT (*x, win_x); XSETINT (*y, win_y); *time = last_mouse_movement_time; } } } UNBLOCK_INPUT; } /*********************************************************************** Scroll bars ***********************************************************************/ /* Scroll bar support. */ /* Given an X window ID and a DISPLAY, find the struct scroll_bar which manages it. This can be called in GC, so we have to make sure to strip off mark bits. */ static struct scroll_bar * x_window_to_scroll_bar (display, window_id) Display *display; Window window_id; { Lisp_Object tail; #if defined (USE_GTK) && defined (USE_TOOLKIT_SCROLL_BARS) window_id = (Window) xg_get_scroll_id_for_window (display, window_id); #endif /* USE_GTK && USE_TOOLKIT_SCROLL_BARS */ for (tail = Vframe_list; XGCTYPE (tail) == Lisp_Cons; tail = XCDR (tail)) { Lisp_Object frame, bar, condemned; frame = XCAR (tail); /* All elements of Vframe_list should be frames. */ if (! GC_FRAMEP (frame)) abort (); /* Scan this frame's scroll bar list for a scroll bar with the right window ID. */ condemned = FRAME_CONDEMNED_SCROLL_BARS (XFRAME (frame)); for (bar = FRAME_SCROLL_BARS (XFRAME (frame)); /* This trick allows us to search both the ordinary and condemned scroll bar lists with one loop. */ ! GC_NILP (bar) || (bar = condemned, condemned = Qnil, ! GC_NILP (bar)); bar = XSCROLL_BAR (bar)->next) if (SCROLL_BAR_X_WINDOW (XSCROLL_BAR (bar)) == window_id && FRAME_X_DISPLAY (XFRAME (frame)) == display) return XSCROLL_BAR (bar); } return 0; } #if defined USE_LUCID /* Return the Lucid menu bar WINDOW is part of. Return null if WINDOW is not part of a menu bar. */ static Widget x_window_to_menu_bar (window) Window window; { Lisp_Object tail; for (tail = Vframe_list; XGCTYPE (tail) == Lisp_Cons; tail = XCDR (tail)) { Lisp_Object frame = XCAR (tail); Widget menu_bar = XFRAME (frame)->output_data.x->menubar_widget; if (menu_bar && xlwmenu_window_p (menu_bar, window)) return menu_bar; } return NULL; } #endif /* USE_LUCID */ /************************************************************************ Toolkit scroll bars ************************************************************************/ #ifdef USE_TOOLKIT_SCROLL_BARS static void x_scroll_bar_to_input_event P_ ((XEvent *, struct input_event *)); static void x_send_scroll_bar_event P_ ((Lisp_Object, int, int, int)); static void x_create_toolkit_scroll_bar P_ ((struct frame *, struct scroll_bar *)); static void x_set_toolkit_scroll_bar_thumb P_ ((struct scroll_bar *, int, int, int)); /* Lisp window being scrolled. Set when starting to interact with a toolkit scroll bar, reset to nil when ending the interaction. */ static Lisp_Object window_being_scrolled; /* Last scroll bar part sent in xm_scroll_callback. */ static int last_scroll_bar_part; /* Whether this is an Xaw with arrow-scrollbars. This should imply that movements of 1/20 of the screen size are mapped to up/down. */ #ifndef USE_GTK /* Id of action hook installed for scroll bars. */ static XtActionHookId action_hook_id; static Boolean xaw3d_arrow_scroll; /* Whether the drag scrolling maintains the mouse at the top of the thumb. If not, resizing the thumb needs to be done more carefully to avoid jerkyness. */ static Boolean xaw3d_pick_top; extern void set_vertical_scroll_bar P_ ((struct window *)); /* Action hook installed via XtAppAddActionHook when toolkit scroll bars are used.. The hook is responsible for detecting when the user ends an interaction with the scroll bar, and generates a `end-scroll' SCROLL_BAR_CLICK_EVENT' event if so. */ static void xt_action_hook (widget, client_data, action_name, event, params, num_params) Widget widget; XtPointer client_data; String action_name; XEvent *event; String *params; Cardinal *num_params; { int scroll_bar_p; char *end_action; #ifdef USE_MOTIF scroll_bar_p = XmIsScrollBar (widget); end_action = "Release"; #else /* !USE_MOTIF i.e. use Xaw */ scroll_bar_p = XtIsSubclass (widget, scrollbarWidgetClass); end_action = "EndScroll"; #endif /* USE_MOTIF */ if (scroll_bar_p && strcmp (action_name, end_action) == 0 && WINDOWP (window_being_scrolled)) { struct window *w; x_send_scroll_bar_event (window_being_scrolled, scroll_bar_end_scroll, 0, 0); w = XWINDOW (window_being_scrolled); if (!NILP (XSCROLL_BAR (w->vertical_scroll_bar)->dragging)) { XSCROLL_BAR (w->vertical_scroll_bar)->dragging = Qnil; /* The thumb size is incorrect while dragging: fix it. */ set_vertical_scroll_bar (w); } window_being_scrolled = Qnil; last_scroll_bar_part = -1; /* Xt timeouts no longer needed. */ toolkit_scroll_bar_interaction = 0; } } #endif /* not USE_GTK */ /* A vector of windows used for communication between x_send_scroll_bar_event and x_scroll_bar_to_input_event. */ static struct window **scroll_bar_windows; static int scroll_bar_windows_size; /* Send a client message with message type Xatom_Scrollbar for a scroll action to the frame of WINDOW. PART is a value identifying the part of the scroll bar that was clicked on. PORTION is the amount to scroll of a whole of WHOLE. */ static void x_send_scroll_bar_event (window, part, portion, whole) Lisp_Object window; int part, portion, whole; { XEvent event; XClientMessageEvent *ev = (XClientMessageEvent *) &event; struct window *w = XWINDOW (window); struct frame *f = XFRAME (w->frame); int i; BLOCK_INPUT; /* Construct a ClientMessage event to send to the frame. */ ev->type = ClientMessage; ev->message_type = FRAME_X_DISPLAY_INFO (f)->Xatom_Scrollbar; ev->display = FRAME_X_DISPLAY (f); ev->window = FRAME_X_WINDOW (f); ev->format = 32; /* We can only transfer 32 bits in the XClientMessageEvent, which is not enough to store a pointer or Lisp_Object on a 64 bit system. So, store the window in scroll_bar_windows and pass the index into that array in the event. */ for (i = 0; i < scroll_bar_windows_size; ++i) if (scroll_bar_windows[i] == NULL) break; if (i == scroll_bar_windows_size) { int new_size = max (10, 2 * scroll_bar_windows_size); size_t nbytes = new_size * sizeof *scroll_bar_windows; size_t old_nbytes = scroll_bar_windows_size * sizeof *scroll_bar_windows; scroll_bar_windows = (struct window **) xrealloc (scroll_bar_windows, nbytes); bzero (&scroll_bar_windows[i], nbytes - old_nbytes); scroll_bar_windows_size = new_size; } scroll_bar_windows[i] = w; ev->data.l[0] = (long) i; ev->data.l[1] = (long) part; ev->data.l[2] = (long) 0; ev->data.l[3] = (long) portion; ev->data.l[4] = (long) whole; /* Make Xt timeouts work while the scroll bar is active. */ toolkit_scroll_bar_interaction = 1; /* Setting the event mask to zero means that the message will be sent to the client that created the window, and if that window no longer exists, no event will be sent. */ XSendEvent (FRAME_X_DISPLAY (f), FRAME_X_WINDOW (f), False, 0, &event); UNBLOCK_INPUT; } /* Transform a scroll bar ClientMessage EVENT to an Emacs input event in *IEVENT. */ static void x_scroll_bar_to_input_event (event, ievent) XEvent *event; struct input_event *ievent; { XClientMessageEvent *ev = (XClientMessageEvent *) event; Lisp_Object window; struct frame *f; struct window *w; w = scroll_bar_windows[ev->data.l[0]]; scroll_bar_windows[ev->data.l[0]] = NULL; XSETWINDOW (window, w); f = XFRAME (w->frame); ievent->kind = SCROLL_BAR_CLICK_EVENT; ievent->frame_or_window = window; ievent->arg = Qnil; #ifdef USE_GTK ievent->timestamp = CurrentTime; #else ievent->timestamp = XtLastTimestampProcessed (FRAME_X_DISPLAY (f)); #endif ievent->part = ev->data.l[1]; ievent->code = ev->data.l[2]; ievent->x = make_number ((int) ev->data.l[3]); ievent->y = make_number ((int) ev->data.l[4]); ievent->modifiers = 0; } #ifdef USE_MOTIF /* Minimum and maximum values used for Motif scroll bars. */ #define XM_SB_MAX 10000000 /* Scroll bar callback for Motif scroll bars. WIDGET is the scroll bar widget. CLIENT_DATA is a pointer to the scroll_bar structure. CALL_DATA is a pointer to a XmScrollBarCallbackStruct. */ static void xm_scroll_callback (widget, client_data, call_data) Widget widget; XtPointer client_data, call_data; { struct scroll_bar *bar = (struct scroll_bar *) client_data; XmScrollBarCallbackStruct *cs = (XmScrollBarCallbackStruct *) call_data; int part = -1, whole = 0, portion = 0; switch (cs->reason) { case XmCR_DECREMENT: bar->dragging = Qnil; part = scroll_bar_up_arrow; break; case XmCR_INCREMENT: bar->dragging = Qnil; part = scroll_bar_down_arrow; break; case XmCR_PAGE_DECREMENT: bar->dragging = Qnil; part = scroll_bar_above_handle; break; case XmCR_PAGE_INCREMENT: bar->dragging = Qnil; part = scroll_bar_below_handle; break; case XmCR_TO_TOP: bar->dragging = Qnil; part = scroll_bar_to_top; break; case XmCR_TO_BOTTOM: bar->dragging = Qnil; part = scroll_bar_to_bottom; break; case XmCR_DRAG: { int slider_size; /* Get the slider size. */ BLOCK_INPUT; XtVaGetValues (widget, XmNsliderSize, &slider_size, NULL); UNBLOCK_INPUT; whole = XM_SB_MAX - slider_size; portion = min (cs->value, whole); part = scroll_bar_handle; bar->dragging = make_number (cs->value); } break; case XmCR_VALUE_CHANGED: break; }; if (part >= 0) { window_being_scrolled = bar->window; last_scroll_bar_part = part; x_send_scroll_bar_event (bar->window, part, portion, whole); } } #else /* !USE_MOTIF, i.e. Xaw or GTK */ #ifdef USE_GTK /* Scroll bar callback for GTK scroll bars. WIDGET is the scroll bar widget. DATA is a pointer to the scroll_bar structure. */ static void xg_scroll_callback (widget, data) GtkRange *widget; gpointer data; { struct scroll_bar *bar = (struct scroll_bar *) data; gdouble previous; gdouble position; gdouble *p; int diff; int part = -1, whole = 0, portion = 0; GtkAdjustment *adj = GTK_ADJUSTMENT (gtk_range_get_adjustment (widget)); position = gtk_adjustment_get_value (adj); p = g_object_get_data (G_OBJECT (widget), XG_LAST_SB_DATA); if (! p) { p = (gdouble*) xmalloc (sizeof (gdouble)); *p = XG_SB_MIN; g_object_set_data (G_OBJECT (widget), XG_LAST_SB_DATA, p); } previous = *p; *p = position; if (xg_ignore_gtk_scrollbar) return; diff = (int) (position - previous); if (diff == (int) adj->step_increment) { part = scroll_bar_down_arrow; bar->dragging = Qnil; } else if (-diff == (int) adj->step_increment) { part = scroll_bar_up_arrow; bar->dragging = Qnil; } else if (diff == (int) adj->page_increment) { part = scroll_bar_below_handle; bar->dragging = Qnil; } else if (-diff == (int) adj->page_increment) { part = scroll_bar_above_handle; bar->dragging = Qnil; } else { part = scroll_bar_handle; whole = adj->upper - adj->page_size; portion = min ((int)position, whole); bar->dragging = make_number ((int)portion); } if (part >= 0) { window_being_scrolled = bar->window; last_scroll_bar_part = part; x_send_scroll_bar_event (bar->window, part, portion, whole); } } #else /* not USE_GTK */ /* Xaw scroll bar callback. Invoked when the thumb is dragged. WIDGET is the scroll bar widget. CLIENT_DATA is a pointer to the scroll bar struct. CALL_DATA is a pointer to a float saying where the thumb is. */ static void xaw_jump_callback (widget, client_data, call_data) Widget widget; XtPointer client_data, call_data; { struct scroll_bar *bar = (struct scroll_bar *) client_data; float top = *(float *) call_data; float shown; int whole, portion, height; int part; /* Get the size of the thumb, a value between 0 and 1. */ BLOCK_INPUT; XtVaGetValues (widget, XtNshown, &shown, XtNheight, &height, NULL); UNBLOCK_INPUT; whole = 10000000; portion = shown < 1 ? top * whole : 0; if (shown < 1 && (abs (top + shown - 1) < 1.0/height)) /* Some derivatives of Xaw refuse to shrink the thumb when you reach the bottom, so we force the scrolling whenever we see that we're too close to the bottom (in x_set_toolkit_scroll_bar_thumb we try to ensure that we always stay two pixels away from the bottom). */ part = scroll_bar_down_arrow; else part = scroll_bar_handle; window_being_scrolled = bar->window; bar->dragging = make_number (portion); last_scroll_bar_part = part; x_send_scroll_bar_event (bar->window, part, portion, whole); } /* Xaw scroll bar callback. Invoked for incremental scrolling., i.e. line or page up or down. WIDGET is the Xaw scroll bar widget. CLIENT_DATA is a pointer to the scroll_bar structure for the scroll bar. CALL_DATA is an integer specifying the action that has taken place. Its magnitude is in the range 0..height of the scroll bar. Negative values mean scroll towards buffer start. Values < height of scroll bar mean line-wise movement. */ static void xaw_scroll_callback (widget, client_data, call_data) Widget widget; XtPointer client_data, call_data; { struct scroll_bar *bar = (struct scroll_bar *) client_data; /* The position really is stored cast to a pointer. */ int position = (long) call_data; Dimension height; int part; /* Get the height of the scroll bar. */ BLOCK_INPUT; XtVaGetValues (widget, XtNheight, &height, NULL); UNBLOCK_INPUT; if (abs (position) >= height) part = (position < 0) ? scroll_bar_above_handle : scroll_bar_below_handle; /* If Xaw3d was compiled with ARROW_SCROLLBAR, it maps line-movement to call_data = max(5, height/20). */ else if (xaw3d_arrow_scroll && abs (position) <= max (5, height / 20)) part = (position < 0) ? scroll_bar_up_arrow : scroll_bar_down_arrow; else part = scroll_bar_move_ratio; window_being_scrolled = bar->window; bar->dragging = Qnil; last_scroll_bar_part = part; x_send_scroll_bar_event (bar->window, part, position, height); } #endif /* not USE_GTK */ #endif /* not USE_MOTIF */ #define SCROLL_BAR_NAME "verticalScrollBar" /* Create the widget for scroll bar BAR on frame F. Record the widget and X window of the scroll bar in BAR. */ #ifdef USE_GTK static void x_create_toolkit_scroll_bar (f, bar) struct frame *f; struct scroll_bar *bar; { char *scroll_bar_name = SCROLL_BAR_NAME; BLOCK_INPUT; xg_create_scroll_bar (f, bar, G_CALLBACK (xg_scroll_callback), scroll_bar_name); UNBLOCK_INPUT; } #else /* not USE_GTK */ static void x_create_toolkit_scroll_bar (f, bar) struct frame *f; struct scroll_bar *bar; { Window xwindow; Widget widget; Arg av[20]; int ac = 0; char *scroll_bar_name = SCROLL_BAR_NAME; unsigned long pixel; BLOCK_INPUT; #ifdef USE_MOTIF /* Set resources. Create the widget. */ XtSetArg (av[ac], XtNmappedWhenManaged, False); ++ac; XtSetArg (av[ac], XmNminimum, 0); ++ac; XtSetArg (av[ac], XmNmaximum, XM_SB_MAX); ++ac; XtSetArg (av[ac], XmNorientation, XmVERTICAL); ++ac; XtSetArg (av[ac], XmNprocessingDirection, XmMAX_ON_BOTTOM), ++ac; XtSetArg (av[ac], XmNincrement, 1); ++ac; XtSetArg (av[ac], XmNpageIncrement, 1); ++ac; pixel = f->output_data.x->scroll_bar_foreground_pixel; if (pixel != -1) { XtSetArg (av[ac], XmNforeground, pixel); ++ac; } pixel = f->output_data.x->scroll_bar_background_pixel; if (pixel != -1) { XtSetArg (av[ac], XmNbackground, pixel); ++ac; } widget = XmCreateScrollBar (f->output_data.x->edit_widget, scroll_bar_name, av, ac); /* Add one callback for everything that can happen. */ XtAddCallback (widget, XmNdecrementCallback, xm_scroll_callback, (XtPointer) bar); XtAddCallback (widget, XmNdragCallback, xm_scroll_callback, (XtPointer) bar); XtAddCallback (widget, XmNincrementCallback, xm_scroll_callback, (XtPointer) bar); XtAddCallback (widget, XmNpageDecrementCallback, xm_scroll_callback, (XtPointer) bar); XtAddCallback (widget, XmNpageIncrementCallback, xm_scroll_callback, (XtPointer) bar); XtAddCallback (widget, XmNtoBottomCallback, xm_scroll_callback, (XtPointer) bar); XtAddCallback (widget, XmNtoTopCallback, xm_scroll_callback, (XtPointer) bar); /* Realize the widget. Only after that is the X window created. */ XtRealizeWidget (widget); /* Set the cursor to an arrow. I didn't find a resource to do that. And I'm wondering why it hasn't an arrow cursor by default. */ XDefineCursor (XtDisplay (widget), XtWindow (widget), f->output_data.x->nontext_cursor); #else /* !USE_MOTIF i.e. use Xaw */ /* Set resources. Create the widget. The background of the Xaw3d scroll bar widget is a little bit light for my taste. We don't alter it here to let users change it according to their taste with `emacs*verticalScrollBar.background: xxx'. */ XtSetArg (av[ac], XtNmappedWhenManaged, False); ++ac; XtSetArg (av[ac], XtNorientation, XtorientVertical); ++ac; /* For smoother scrolling with Xaw3d -sm */ /* XtSetArg (av[ac], XtNpickTop, True); ++ac; */ pixel = f->output_data.x->scroll_bar_foreground_pixel; if (pixel != -1) { XtSetArg (av[ac], XtNforeground, pixel); ++ac; } pixel = f->output_data.x->scroll_bar_background_pixel; if (pixel != -1) { XtSetArg (av[ac], XtNbackground, pixel); ++ac; } /* Top/bottom shadow colors. */ /* Allocate them, if necessary. */ if (f->output_data.x->scroll_bar_top_shadow_pixel == -1) { pixel = f->output_data.x->scroll_bar_background_pixel; if (!x_alloc_lighter_color (f, FRAME_X_DISPLAY (f), FRAME_X_COLORMAP (f), &pixel, 1.2, 0x8000)) pixel = -1; f->output_data.x->scroll_bar_top_shadow_pixel = pixel; } if (f->output_data.x->scroll_bar_bottom_shadow_pixel == -1) { pixel = f->output_data.x->scroll_bar_background_pixel; if (!x_alloc_lighter_color (f, FRAME_X_DISPLAY (f), FRAME_X_COLORMAP (f), &pixel, 0.6, 0x4000)) pixel = -1; f->output_data.x->scroll_bar_bottom_shadow_pixel = pixel; } #ifdef XtNbeNiceToColormap /* Tell the toolkit about them. */ if (f->output_data.x->scroll_bar_top_shadow_pixel == -1 || f->output_data.x->scroll_bar_bottom_shadow_pixel == -1) /* We tried to allocate a color for the top/bottom shadow, and failed, so tell Xaw3d to use dithering instead. */ { XtSetArg (av[ac], XtNbeNiceToColormap, True); ++ac; } else /* Tell what colors Xaw3d should use for the top/bottom shadow, to be more consistent with other emacs 3d colors, and since Xaw3d is not good at dealing with allocation failure. */ { /* This tells Xaw3d to use real colors instead of dithering for the shadows. */ XtSetArg (av[ac], XtNbeNiceToColormap, False); ++ac; /* Specify the colors. */ pixel = f->output_data.x->scroll_bar_top_shadow_pixel; if (pixel != -1) { XtSetArg (av[ac], XtNtopShadowPixel, pixel); ++ac; } pixel = f->output_data.x->scroll_bar_bottom_shadow_pixel; if (pixel != -1) { XtSetArg (av[ac], XtNbottomShadowPixel, pixel); ++ac; } } #endif widget = XtCreateWidget (scroll_bar_name, scrollbarWidgetClass, f->output_data.x->edit_widget, av, ac); { char *initial = ""; char *val = initial; XtVaGetValues (widget, XtNscrollVCursor, (XtPointer) &val, XtNpickTop, (XtPointer) &xaw3d_pick_top, NULL); if (val == initial) { /* ARROW_SCROLL */ xaw3d_arrow_scroll = True; /* Isn't that just a personal preference ? -sm */ XtVaSetValues (widget, XtNcursorName, "top_left_arrow", NULL); } } /* Define callbacks. */ XtAddCallback (widget, XtNjumpProc, xaw_jump_callback, (XtPointer) bar); XtAddCallback (widget, XtNscrollProc, xaw_scroll_callback, (XtPointer) bar); /* Realize the widget. Only after that is the X window created. */ XtRealizeWidget (widget); #endif /* !USE_MOTIF */ /* Install an action hook that lets us detect when the user finishes interacting with a scroll bar. */ if (action_hook_id == 0) action_hook_id = XtAppAddActionHook (Xt_app_con, xt_action_hook, 0); /* Remember X window and widget in the scroll bar vector. */ SET_SCROLL_BAR_X_WIDGET (bar, widget); xwindow = XtWindow (widget); SET_SCROLL_BAR_X_WINDOW (bar, xwindow); UNBLOCK_INPUT; } #endif /* not USE_GTK */ /* Set the thumb size and position of scroll bar BAR. We are currently displaying PORTION out of a whole WHOLE, and our position POSITION. */ #ifdef USE_GTK static void x_set_toolkit_scroll_bar_thumb (bar, portion, position, whole) struct scroll_bar *bar; int portion, position, whole; { xg_set_toolkit_scroll_bar_thumb (bar, portion, position, whole); } #else /* not USE_GTK */ static void x_set_toolkit_scroll_bar_thumb (bar, portion, position, whole) struct scroll_bar *bar; int portion, position, whole; { struct frame *f = XFRAME (WINDOW_FRAME (XWINDOW (bar->window))); Widget widget = SCROLL_BAR_X_WIDGET (FRAME_X_DISPLAY (f), bar); float top, shown; BLOCK_INPUT; #ifdef USE_MOTIF /* We use an estimate of 30 chars per line rather than the real `portion' value. This has the disadvantage that the thumb size is not very representative, but it makes our life a lot easier. Otherwise, we have to constantly adjust the thumb size, which we can't always do quickly enough: while dragging, the size of the thumb might prevent the user from dragging the thumb all the way to the end. but Motif and some versions of Xaw3d don't allow updating the thumb size while dragging. Also, even if we can update its size, the update will often happen too late. If you don't believe it, check out revision 1.650 of xterm.c to see what hoops we were going through and the still poor behavior we got. */ portion = WINDOW_TOTAL_LINES (XWINDOW (bar->window)) * 30; /* When the thumb is at the bottom, position == whole. So we need to increase `whole' to make space for the thumb. */ whole += portion; if (whole <= 0) top = 0, shown = 1; else { top = (float) position / whole; shown = (float) portion / whole; } if (NILP (bar->dragging)) { int size, value; /* Slider size. Must be in the range [1 .. MAX - MIN] where MAX is the scroll bar's maximum and MIN is the scroll bar's minimum value. */ size = shown * XM_SB_MAX; size = min (size, XM_SB_MAX); size = max (size, 1); /* Position. Must be in the range [MIN .. MAX - SLIDER_SIZE]. */ value = top * XM_SB_MAX; value = min (value, XM_SB_MAX - size); XmScrollBarSetValues (widget, value, size, 0, 0, False); } #else /* !USE_MOTIF i.e. use Xaw */ if (whole == 0) top = 0, shown = 1; else { top = (float) position / whole; shown = (float) portion / whole; } { float old_top, old_shown; Dimension height; XtVaGetValues (widget, XtNtopOfThumb, &old_top, XtNshown, &old_shown, XtNheight, &height, NULL); /* Massage the top+shown values. */ if (NILP (bar->dragging) || last_scroll_bar_part == scroll_bar_down_arrow) top = max (0, min (1, top)); else top = old_top; /* Keep two pixels available for moving the thumb down. */ shown = max (0, min (1 - top - (2.0 / height), shown)); /* If the call to XawScrollbarSetThumb below doesn't seem to work, check that your system's configuration file contains a define for `NARROWPROTO'. See s/freebsd.h for an example. */ if (top != old_top || shown != old_shown) { if (NILP (bar->dragging)) XawScrollbarSetThumb (widget, top, shown); else { /* Try to make the scrolling a tad smoother. */ if (!xaw3d_pick_top) shown = min (shown, old_shown); XawScrollbarSetThumb (widget, top, shown); } } } #endif /* !USE_MOTIF */ UNBLOCK_INPUT; } #endif /* not USE_GTK */ #endif /* USE_TOOLKIT_SCROLL_BARS */ /************************************************************************ Scroll bars, general ************************************************************************/ /* Create a scroll bar and return the scroll bar vector for it. W is the Emacs window on which to create the scroll bar. TOP, LEFT, WIDTH and HEIGHT are the pixel coordinates and dimensions of the scroll bar. */ static struct scroll_bar * x_scroll_bar_create (w, top, left, width, height) struct window *w; int top, left, width, height; { struct frame *f = XFRAME (w->frame); struct scroll_bar *bar = XSCROLL_BAR (Fmake_vector (make_number (SCROLL_BAR_VEC_SIZE), Qnil)); BLOCK_INPUT; #ifdef USE_TOOLKIT_SCROLL_BARS x_create_toolkit_scroll_bar (f, bar); #else /* not USE_TOOLKIT_SCROLL_BARS */ { XSetWindowAttributes a; unsigned long mask; Window window; a.background_pixel = f->output_data.x->scroll_bar_background_pixel; if (a.background_pixel == -1) a.background_pixel = f->output_data.x->background_pixel; a.event_mask = (ButtonPressMask | ButtonReleaseMask | ButtonMotionMask | PointerMotionHintMask | ExposureMask); a.cursor = FRAME_X_DISPLAY_INFO (f)->vertical_scroll_bar_cursor; mask = (CWBackPixel | CWEventMask | CWCursor); /* Clear the area of W that will serve as a scroll bar. This is for the case that a window has been split horizontally. In this case, no clear_frame is generated to reduce flickering. */ if (width > 0 && height > 0) x_clear_area (FRAME_X_DISPLAY (f), FRAME_X_WINDOW (f), left, top, width, window_box_height (w), False); window = XCreateWindow (FRAME_X_DISPLAY (f), FRAME_X_WINDOW (f), /* Position and size of scroll bar. */ left + VERTICAL_SCROLL_BAR_WIDTH_TRIM, top, width - VERTICAL_SCROLL_BAR_WIDTH_TRIM * 2, height, /* Border width, depth, class, and visual. */ 0, CopyFromParent, CopyFromParent, CopyFromParent, /* Attributes. */ mask, &a); SET_SCROLL_BAR_X_WINDOW (bar, window); } #endif /* not USE_TOOLKIT_SCROLL_BARS */ XSETWINDOW (bar->window, w); XSETINT (bar->top, top); XSETINT (bar->left, left); XSETINT (bar->width, width); XSETINT (bar->height, height); XSETINT (bar->start, 0); XSETINT (bar->end, 0); bar->dragging = Qnil; /* Add bar to its frame's list of scroll bars. */ bar->next = FRAME_SCROLL_BARS (f); bar->prev = Qnil; XSETVECTOR (FRAME_SCROLL_BARS (f), bar); if (!NILP (bar->next)) XSETVECTOR (XSCROLL_BAR (bar->next)->prev, bar); /* Map the window/widget. */ #ifdef USE_TOOLKIT_SCROLL_BARS { #ifdef USE_GTK xg_update_scrollbar_pos (f, SCROLL_BAR_X_WINDOW (bar), top, left + VERTICAL_SCROLL_BAR_WIDTH_TRIM, width - VERTICAL_SCROLL_BAR_WIDTH_TRIM * 2, max (height, 1)); xg_show_scroll_bar (SCROLL_BAR_X_WINDOW (bar)); #else /* not USE_GTK */ Widget scroll_bar = SCROLL_BAR_X_WIDGET (FRAME_X_DISPLAY (f), bar); XtConfigureWidget (scroll_bar, left + VERTICAL_SCROLL_BAR_WIDTH_TRIM, top, width - VERTICAL_SCROLL_BAR_WIDTH_TRIM * 2, max (height, 1), 0); XtMapWidget (scroll_bar); #endif /* not USE_GTK */ } #else /* not USE_TOOLKIT_SCROLL_BARS */ XMapRaised (FRAME_X_DISPLAY (f), SCROLL_BAR_X_WINDOW (bar)); #endif /* not USE_TOOLKIT_SCROLL_BARS */ UNBLOCK_INPUT; return bar; } /* Draw BAR's handle in the proper position. If the handle is already drawn from START to END, don't bother redrawing it, unless REBUILD is non-zero; in that case, always redraw it. (REBUILD is handy for drawing the handle after expose events.) Normally, we want to constrain the start and end of the handle to fit inside its rectangle, but if the user is dragging the scroll bar handle, we want to let them drag it down all the way, so that the bar's top is as far down as it goes; otherwise, there's no way to move to the very end of the buffer. */ #ifndef USE_TOOLKIT_SCROLL_BARS static void x_scroll_bar_set_handle (bar, start, end, rebuild) struct scroll_bar *bar; int start, end; int rebuild; { int dragging = ! NILP (bar->dragging); Window w = SCROLL_BAR_X_WINDOW (bar); FRAME_PTR f = XFRAME (WINDOW_FRAME (XWINDOW (bar->window))); GC gc = f->output_data.x->normal_gc; /* If the display is already accurate, do nothing. */ if (! rebuild && start == XINT (bar->start) && end == XINT (bar->end)) return; BLOCK_INPUT; { int inside_width = VERTICAL_SCROLL_BAR_INSIDE_WIDTH (f, XINT (bar->width)); int inside_height = VERTICAL_SCROLL_BAR_INSIDE_HEIGHT (f, XINT (bar->height)); int top_range = VERTICAL_SCROLL_BAR_TOP_RANGE (f, XINT (bar->height)); /* Make sure the values are reasonable, and try to preserve the distance between start and end. */ { int length = end - start; if (start < 0) start = 0; else if (start > top_range) start = top_range; end = start + length; if (end < start) end = start; else if (end > top_range && ! dragging) end = top_range; } /* Store the adjusted setting in the scroll bar. */ XSETINT (bar->start, start); XSETINT (bar->end, end); /* Clip the end position, just for display. */ if (end > top_range) end = top_range; /* Draw bottom positions VERTICAL_SCROLL_BAR_MIN_HANDLE pixels below top positions, to make sure the handle is always at least that many pixels tall. */ end += VERTICAL_SCROLL_BAR_MIN_HANDLE; /* Draw the empty space above the handle. Note that we can't clear zero-height areas; that means "clear to end of window." */ if (0 < start) x_clear_area (FRAME_X_DISPLAY (f), w, /* x, y, width, height, and exposures. */ VERTICAL_SCROLL_BAR_LEFT_BORDER, VERTICAL_SCROLL_BAR_TOP_BORDER, inside_width, start, False); /* Change to proper foreground color if one is specified. */ if (f->output_data.x->scroll_bar_foreground_pixel != -1) XSetForeground (FRAME_X_DISPLAY (f), gc, f->output_data.x->scroll_bar_foreground_pixel); /* Draw the handle itself. */ XFillRectangle (FRAME_X_DISPLAY (f), w, gc, /* x, y, width, height */ VERTICAL_SCROLL_BAR_LEFT_BORDER, VERTICAL_SCROLL_BAR_TOP_BORDER + start, inside_width, end - start); /* Restore the foreground color of the GC if we changed it above. */ if (f->output_data.x->scroll_bar_foreground_pixel != -1) XSetForeground (FRAME_X_DISPLAY (f), gc, f->output_data.x->foreground_pixel); /* Draw the empty space below the handle. Note that we can't clear zero-height areas; that means "clear to end of window." */ if (end < inside_height) x_clear_area (FRAME_X_DISPLAY (f), w, /* x, y, width, height, and exposures. */ VERTICAL_SCROLL_BAR_LEFT_BORDER, VERTICAL_SCROLL_BAR_TOP_BORDER + end, inside_width, inside_height - end, False); } UNBLOCK_INPUT; } #endif /* !USE_TOOLKIT_SCROLL_BARS */ /* Destroy scroll bar BAR, and set its Emacs window's scroll bar to nil. */ static void x_scroll_bar_remove (bar) struct scroll_bar *bar; { struct frame *f = XFRAME (WINDOW_FRAME (XWINDOW (bar->window))); BLOCK_INPUT; #ifdef USE_TOOLKIT_SCROLL_BARS #ifdef USE_GTK xg_remove_scroll_bar (f, SCROLL_BAR_X_WINDOW (bar)); #else /* not USE_GTK */ XtDestroyWidget (SCROLL_BAR_X_WIDGET (FRAME_X_DISPLAY (f), bar)); #endif /* not USE_GTK */ #else XDestroyWindow (FRAME_X_DISPLAY (f), SCROLL_BAR_X_WINDOW (bar)); #endif /* Disassociate this scroll bar from its window. */ XWINDOW (bar->window)->vertical_scroll_bar = Qnil; UNBLOCK_INPUT; } /* Set the handle of the vertical scroll bar for WINDOW to indicate that we are displaying PORTION characters out of a total of WHOLE characters, starting at POSITION. If WINDOW has no scroll bar, create one. */ static void XTset_vertical_scroll_bar (w, portion, whole, position) struct window *w; int portion, whole, position; { struct frame *f = XFRAME (w->frame); struct scroll_bar *bar; int top, height, left, sb_left, width, sb_width; int window_y, window_height; /* Get window dimensions. */ window_box (w, -1, 0, &window_y, 0, &window_height); top = window_y; width = WINDOW_CONFIG_SCROLL_BAR_COLS (w) * FRAME_COLUMN_WIDTH (f); height = window_height; /* Compute the left edge of the scroll bar area. */ left = WINDOW_SCROLL_BAR_AREA_X (w); /* Compute the width of the scroll bar which might be less than the width of the area reserved for the scroll bar. */ if (WINDOW_CONFIG_SCROLL_BAR_WIDTH (w) > 0) sb_width = WINDOW_CONFIG_SCROLL_BAR_WIDTH (w); else sb_width = width; /* Compute the left edge of the scroll bar. */ #ifdef USE_TOOLKIT_SCROLL_BARS if (WINDOW_HAS_VERTICAL_SCROLL_BAR_ON_RIGHT (w)) sb_left = (left + (WINDOW_RIGHTMOST_P (w) ? width - sb_width - (width - sb_width) / 2 : 0)); else sb_left = (left + (WINDOW_LEFTMOST_P (w) ? (width - sb_width) / 2 : width - sb_width)); #else if (WINDOW_HAS_VERTICAL_SCROLL_BAR_ON_RIGHT (w)) sb_left = left + width - sb_width; else sb_left = left; #endif /* Does the scroll bar exist yet? */ if (NILP (w->vertical_scroll_bar)) { if (width > 0 && height > 0) { BLOCK_INPUT; x_clear_area (FRAME_X_DISPLAY (f), FRAME_X_WINDOW (f), left, top, width, height, False); UNBLOCK_INPUT; } bar = x_scroll_bar_create (w, top, sb_left, sb_width, height); } else { /* It may just need to be moved and resized. */ unsigned int mask = 0; bar = XSCROLL_BAR (w->vertical_scroll_bar); BLOCK_INPUT; if (sb_left != XINT (bar->left)) mask |= CWX; if (top != XINT (bar->top)) mask |= CWY; if (sb_width != XINT (bar->width)) mask |= CWWidth; if (height != XINT (bar->height)) mask |= CWHeight; #ifdef USE_TOOLKIT_SCROLL_BARS /* Move/size the scroll bar widget. */ if (mask) { /* Since toolkit scroll bars are smaller than the space reserved for them on the frame, we have to clear "under" them. */ if (width > 0 && height > 0) x_clear_area (FRAME_X_DISPLAY (f), FRAME_X_WINDOW (f), left, top, width, height, False); #ifdef USE_GTK xg_update_scrollbar_pos (f, SCROLL_BAR_X_WINDOW (bar), top, sb_left + VERTICAL_SCROLL_BAR_WIDTH_TRIM, sb_width - VERTICAL_SCROLL_BAR_WIDTH_TRIM *2, max (height, 1)); #else /* not USE_GTK */ XtConfigureWidget (SCROLL_BAR_X_WIDGET (FRAME_X_DISPLAY (f), bar), sb_left + VERTICAL_SCROLL_BAR_WIDTH_TRIM, top, sb_width - VERTICAL_SCROLL_BAR_WIDTH_TRIM * 2, max (height, 1), 0); #endif /* not USE_GTK */ } #else /* not USE_TOOLKIT_SCROLL_BARS */ /* Clear areas not covered by the scroll bar because of VERTICAL_SCROLL_BAR_WIDTH_TRIM. */ if (VERTICAL_SCROLL_BAR_WIDTH_TRIM) { x_clear_area (FRAME_X_DISPLAY (f), FRAME_X_WINDOW (f), left, top, VERTICAL_SCROLL_BAR_WIDTH_TRIM, height, False); x_clear_area (FRAME_X_DISPLAY (f), FRAME_X_WINDOW (f), left + width - VERTICAL_SCROLL_BAR_WIDTH_TRIM, top, VERTICAL_SCROLL_BAR_WIDTH_TRIM, height, False); } /* Clear areas not covered by the scroll bar because it's not as wide as the area reserved for it. This makes sure a previous mode line display is cleared after C-x 2 C-x 1, for example. */ { int area_width = WINDOW_CONFIG_SCROLL_BAR_COLS (w) * FRAME_COLUMN_WIDTH (f); int rest = area_width - sb_width; if (rest > 0 && height > 0) { if (WINDOW_HAS_VERTICAL_SCROLL_BAR_ON_LEFT (w)) x_clear_area (FRAME_X_DISPLAY (f), FRAME_X_WINDOW (f), left + area_width - rest, top, rest, height, False); else x_clear_area (FRAME_X_DISPLAY (f), FRAME_X_WINDOW (f), left, top, rest, height, False); } } /* Move/size the scroll bar window. */ if (mask) { XWindowChanges wc; wc.x = sb_left + VERTICAL_SCROLL_BAR_WIDTH_TRIM; wc.y = top; wc.width = sb_width - VERTICAL_SCROLL_BAR_WIDTH_TRIM * 2; wc.height = height; XConfigureWindow (FRAME_X_DISPLAY (f), SCROLL_BAR_X_WINDOW (bar), mask, &wc); } #endif /* not USE_TOOLKIT_SCROLL_BARS */ /* Remember new settings. */ XSETINT (bar->left, sb_left); XSETINT (bar->top, top); XSETINT (bar->width, sb_width); XSETINT (bar->height, height); UNBLOCK_INPUT; } #ifdef USE_TOOLKIT_SCROLL_BARS x_set_toolkit_scroll_bar_thumb (bar, portion, position, whole); #else /* not USE_TOOLKIT_SCROLL_BARS */ /* Set the scroll bar's current state, unless we're currently being dragged. */ if (NILP (bar->dragging)) { int top_range = VERTICAL_SCROLL_BAR_TOP_RANGE (f, height); if (whole == 0) x_scroll_bar_set_handle (bar, 0, top_range, 0); else { int start = ((double) position * top_range) / whole; int end = ((double) (position + portion) * top_range) / whole; x_scroll_bar_set_handle (bar, start, end, 0); } } #endif /* not USE_TOOLKIT_SCROLL_BARS */ XSETVECTOR (w->vertical_scroll_bar, bar); } /* The following three hooks are used when we're doing a thorough redisplay of the frame. We don't explicitly know which scroll bars are going to be deleted, because keeping track of when windows go away is a real pain - "Can you say set-window-configuration, boys and girls?" Instead, we just assert at the beginning of redisplay that *all* scroll bars are to be removed, and then save a scroll bar from the fiery pit when we actually redisplay its window. */ /* Arrange for all scroll bars on FRAME to be removed at the next call to `*judge_scroll_bars_hook'. A scroll bar may be spared if `*redeem_scroll_bar_hook' is applied to its window before the judgment. */ static void XTcondemn_scroll_bars (frame) FRAME_PTR frame; { /* Transfer all the scroll bars to FRAME_CONDEMNED_SCROLL_BARS. */ while (! NILP (FRAME_SCROLL_BARS (frame))) { Lisp_Object bar; bar = FRAME_SCROLL_BARS (frame); FRAME_SCROLL_BARS (frame) = XSCROLL_BAR (bar)->next; XSCROLL_BAR (bar)->next = FRAME_CONDEMNED_SCROLL_BARS (frame); XSCROLL_BAR (bar)->prev = Qnil; if (! NILP (FRAME_CONDEMNED_SCROLL_BARS (frame))) XSCROLL_BAR (FRAME_CONDEMNED_SCROLL_BARS (frame))->prev = bar; FRAME_CONDEMNED_SCROLL_BARS (frame) = bar; } } /* Un-mark WINDOW's scroll bar for deletion in this judgment cycle. Note that WINDOW isn't necessarily condemned at all. */ static void XTredeem_scroll_bar (window) struct window *window; { struct scroll_bar *bar; struct frame *f; /* We can't redeem this window's scroll bar if it doesn't have one. */ if (NILP (window->vertical_scroll_bar)) abort (); bar = XSCROLL_BAR (window->vertical_scroll_bar); /* Unlink it from the condemned list. */ f = XFRAME (WINDOW_FRAME (window)); if (NILP (bar->prev)) { /* If the prev pointer is nil, it must be the first in one of the lists. */ if (EQ (FRAME_SCROLL_BARS (f), window->vertical_scroll_bar)) /* It's not condemned. Everything's fine. */ return; else if (EQ (FRAME_CONDEMNED_SCROLL_BARS (f), window->vertical_scroll_bar)) FRAME_CONDEMNED_SCROLL_BARS (f) = bar->next; else /* If its prev pointer is nil, it must be at the front of one or the other! */ abort (); } else XSCROLL_BAR (bar->prev)->next = bar->next; if (! NILP (bar->next)) XSCROLL_BAR (bar->next)->prev = bar->prev; bar->next = FRAME_SCROLL_BARS (f); bar->prev = Qnil; XSETVECTOR (FRAME_SCROLL_BARS (f), bar); if (! NILP (bar->next)) XSETVECTOR (XSCROLL_BAR (bar->next)->prev, bar); } /* Remove all scroll bars on FRAME that haven't been saved since the last call to `*condemn_scroll_bars_hook'. */ static void XTjudge_scroll_bars (f) FRAME_PTR f; { Lisp_Object bar, next; bar = FRAME_CONDEMNED_SCROLL_BARS (f); /* Clear out the condemned list now so we won't try to process any more events on the hapless scroll bars. */ FRAME_CONDEMNED_SCROLL_BARS (f) = Qnil; for (; ! NILP (bar); bar = next) { struct scroll_bar *b = XSCROLL_BAR (bar); x_scroll_bar_remove (b); next = b->next; b->next = b->prev = Qnil; } /* Now there should be no references to the condemned scroll bars, and they should get garbage-collected. */ } #ifndef USE_TOOLKIT_SCROLL_BARS /* Handle an Expose or GraphicsExpose event on a scroll bar. This is a no-op when using toolkit scroll bars. This may be called from a signal handler, so we have to ignore GC mark bits. */ static void x_scroll_bar_expose (bar, event) struct scroll_bar *bar; XEvent *event; { Window w = SCROLL_BAR_X_WINDOW (bar); FRAME_PTR f = XFRAME (WINDOW_FRAME (XWINDOW (bar->window))); GC gc = f->output_data.x->normal_gc; int width_trim = VERTICAL_SCROLL_BAR_WIDTH_TRIM; BLOCK_INPUT; x_scroll_bar_set_handle (bar, XINT (bar->start), XINT (bar->end), 1); /* Draw a one-pixel border just inside the edges of the scroll bar. */ XDrawRectangle (FRAME_X_DISPLAY (f), w, gc, /* x, y, width, height */ 0, 0, XINT (bar->width) - 1 - width_trim - width_trim, XINT (bar->height) - 1); UNBLOCK_INPUT; } #endif /* not USE_TOOLKIT_SCROLL_BARS */ /* Handle a mouse click on the scroll bar BAR. If *EMACS_EVENT's kind is set to something other than NO_EVENT, it is enqueued. This may be called from a signal handler, so we have to ignore GC mark bits. */ static void x_scroll_bar_handle_click (bar, event, emacs_event) struct scroll_bar *bar; XEvent *event; struct input_event *emacs_event; { if (! GC_WINDOWP (bar->window)) abort (); emacs_event->kind = SCROLL_BAR_CLICK_EVENT; emacs_event->code = event->xbutton.button - Button1; emacs_event->modifiers = (x_x_to_emacs_modifiers (FRAME_X_DISPLAY_INFO (XFRAME (WINDOW_FRAME (XWINDOW (bar->window)))), event->xbutton.state) | (event->type == ButtonRelease ? up_modifier : down_modifier)); emacs_event->frame_or_window = bar->window; emacs_event->arg = Qnil; emacs_event->timestamp = event->xbutton.time; { #if 0 FRAME_PTR f = XFRAME (WINDOW_FRAME (XWINDOW (bar->window))); int internal_height = VERTICAL_SCROLL_BAR_INSIDE_HEIGHT (f, XINT (bar->height)); #endif int top_range = VERTICAL_SCROLL_BAR_TOP_RANGE (f, XINT (bar->height)); int y = event->xbutton.y - VERTICAL_SCROLL_BAR_TOP_BORDER; if (y < 0) y = 0; if (y > top_range) y = top_range; if (y < XINT (bar->start)) emacs_event->part = scroll_bar_above_handle; else if (y < XINT (bar->end) + VERTICAL_SCROLL_BAR_MIN_HANDLE) emacs_event->part = scroll_bar_handle; else emacs_event->part = scroll_bar_below_handle; /* Just because the user has clicked on the handle doesn't mean they want to drag it. Lisp code needs to be able to decide whether or not we're dragging. */ #if 0 /* If the user has just clicked on the handle, record where they're holding it. */ if (event->type == ButtonPress && emacs_event->part == scroll_bar_handle) XSETINT (bar->dragging, y - XINT (bar->start)); #endif #ifndef USE_TOOLKIT_SCROLL_BARS /* If the user has released the handle, set it to its final position. */ if (event->type == ButtonRelease && ! NILP (bar->dragging)) { int new_start = y - XINT (bar->dragging); int new_end = new_start + (XINT (bar->end) - XINT (bar->start)); x_scroll_bar_set_handle (bar, new_start, new_end, 0); bar->dragging = Qnil; } #endif /* Same deal here as the other #if 0. */ #if 0 /* Clicks on the handle are always reported as occurring at the top of the handle. */ if (emacs_event->part == scroll_bar_handle) emacs_event->x = bar->start; else XSETINT (emacs_event->x, y); #else XSETINT (emacs_event->x, y); #endif XSETINT (emacs_event->y, top_range); } } #ifndef USE_TOOLKIT_SCROLL_BARS /* Handle some mouse motion while someone is dragging the scroll bar. This may be called from a signal handler, so we have to ignore GC mark bits. */ static void x_scroll_bar_note_movement (bar, event) struct scroll_bar *bar; XEvent *event; { FRAME_PTR f = XFRAME (XWINDOW (bar->window)->frame); last_mouse_movement_time = event->xmotion.time; f->mouse_moved = 1; XSETVECTOR (last_mouse_scroll_bar, bar); /* If we're dragging the bar, display it. */ if (! GC_NILP (bar->dragging)) { /* Where should the handle be now? */ int new_start = event->xmotion.y - XINT (bar->dragging); if (new_start != XINT (bar->start)) { int new_end = new_start + (XINT (bar->end) - XINT (bar->start)); x_scroll_bar_set_handle (bar, new_start, new_end, 0); } } } #endif /* !USE_TOOLKIT_SCROLL_BARS */ /* Return information to the user about the current position of the mouse on the scroll bar. */ static void x_scroll_bar_report_motion (fp, bar_window, part, x, y, time) FRAME_PTR *fp; Lisp_Object *bar_window; enum scroll_bar_part *part; Lisp_Object *x, *y; unsigned long *time; { struct scroll_bar *bar = XSCROLL_BAR (last_mouse_scroll_bar); Window w = SCROLL_BAR_X_WINDOW (bar); FRAME_PTR f = XFRAME (WINDOW_FRAME (XWINDOW (bar->window))); int win_x, win_y; Window dummy_window; int dummy_coord; unsigned int dummy_mask; BLOCK_INPUT; /* Get the mouse's position relative to the scroll bar window, and report that. */ if (! XQueryPointer (FRAME_X_DISPLAY (f), w, /* Root, child, root x and root y. */ &dummy_window, &dummy_window, &dummy_coord, &dummy_coord, /* Position relative to scroll bar. */ &win_x, &win_y, /* Mouse buttons and modifier keys. */ &dummy_mask)) ; else { #if 0 int inside_height = VERTICAL_SCROLL_BAR_INSIDE_HEIGHT (f, XINT (bar->height)); #endif int top_range = VERTICAL_SCROLL_BAR_TOP_RANGE (f, XINT (bar->height)); win_y -= VERTICAL_SCROLL_BAR_TOP_BORDER; if (! NILP (bar->dragging)) win_y -= XINT (bar->dragging); if (win_y < 0) win_y = 0; if (win_y > top_range) win_y = top_range; *fp = f; *bar_window = bar->window; if (! NILP (bar->dragging)) *part = scroll_bar_handle; else if (win_y < XINT (bar->start)) *part = scroll_bar_above_handle; else if (win_y < XINT (bar->end) + VERTICAL_SCROLL_BAR_MIN_HANDLE) *part = scroll_bar_handle; else *part = scroll_bar_below_handle; XSETINT (*x, win_y); XSETINT (*y, top_range); f->mouse_moved = 0; last_mouse_scroll_bar = Qnil; } *time = last_mouse_movement_time; UNBLOCK_INPUT; } /* The screen has been cleared so we may have changed foreground or background colors, and the scroll bars may need to be redrawn. Clear out the scroll bars, and ask for expose events, so we can redraw them. */ void x_scroll_bar_clear (f) FRAME_PTR f; { #ifndef USE_TOOLKIT_SCROLL_BARS Lisp_Object bar; /* We can have scroll bars even if this is 0, if we just turned off scroll bar mode. But in that case we should not clear them. */ if (FRAME_HAS_VERTICAL_SCROLL_BARS (f)) for (bar = FRAME_SCROLL_BARS (f); VECTORP (bar); bar = XSCROLL_BAR (bar)->next) XClearArea (FRAME_X_DISPLAY (f), SCROLL_BAR_X_WINDOW (XSCROLL_BAR (bar)), 0, 0, 0, 0, True); #endif /* not USE_TOOLKIT_SCROLL_BARS */ } /* The main X event-reading loop - XTread_socket. */ #if 0 /* Time stamp of enter window event. This is only used by XTread_socket, but we have to put it out here, since static variables within functions sometimes don't work. */ static Time enter_timestamp; #endif /* This holds the state XLookupString needs to implement dead keys and other tricks known as "compose processing". _X Window System_ says that a portable program can't use this, but Stephen Gildea assures me that letting the compiler initialize it to zeros will work okay. This must be defined outside of XTread_socket, for the same reasons given for enter_timestamp, above. */ static XComposeStatus compose_status; /* Record the last 100 characters stored to help debug the loss-of-chars-during-GC problem. */ static int temp_index; static short temp_buffer[100]; #define STORE_KEYSYM_FOR_DEBUG(keysym) \ if (temp_index == sizeof temp_buffer / sizeof (short)) \ temp_index = 0; \ temp_buffer[temp_index++] = (keysym) /* Set this to nonzero to fake an "X I/O error" on a particular display. */ struct x_display_info *XTread_socket_fake_io_error; /* When we find no input here, we occasionally do a no-op command to verify that the X server is still running and we can still talk with it. We try all the open displays, one by one. This variable is used for cycling thru the displays. */ static struct x_display_info *next_noop_dpyinfo; #define SET_SAVED_MENU_EVENT(size) \ do \ { \ if (f->output_data.x->saved_menu_event == 0) \ f->output_data.x->saved_menu_event \ = (XEvent *) xmalloc (sizeof (XEvent)); \ bcopy (&event, f->output_data.x->saved_menu_event, size); \ inev.ie.kind = MENU_BAR_ACTIVATE_EVENT; \ XSETFRAME (inev.ie.frame_or_window, f); \ } \ while (0) #define SET_SAVED_BUTTON_EVENT SET_SAVED_MENU_EVENT (sizeof (XButtonEvent)) #define SET_SAVED_KEY_EVENT SET_SAVED_MENU_EVENT (sizeof (XKeyEvent)) enum { X_EVENT_NORMAL, X_EVENT_GOTO_OUT, X_EVENT_DROP }; /* Filter events for the current X input method. DPYINFO is the display this event is for. EVENT is the X event to filter. Returns non-zero if the event was filtered, caller shall not process this event further. Returns zero if event is wasn't filtered. */ #ifdef HAVE_X_I18N static int x_filter_event (dpyinfo, event) struct x_display_info *dpyinfo; XEvent *event; { /* XFilterEvent returns non-zero if the input method has consumed the event. We pass the frame's X window to XFilterEvent because that's the one for which the IC was created. */ struct frame *f1 = x_any_window_to_frame (dpyinfo, event->xclient.window); return XFilterEvent (event, f1 ? FRAME_X_WINDOW (f1) : None); } #endif #ifdef USE_GTK static int current_count; static int current_finish; static struct input_event *current_hold_quit; /* This is the filter function invoked by the GTK event loop. It is invoked before the XEvent is translated to a GdkEvent, so we have a chance to act on the event before GTK. */ static GdkFilterReturn event_handler_gdk (gxev, ev, data) GdkXEvent *gxev; GdkEvent *ev; gpointer data; { XEvent *xev = (XEvent *) gxev; if (current_count >= 0) { struct x_display_info *dpyinfo; dpyinfo = x_display_info_for_display (xev->xany.display); #ifdef HAVE_X_I18N /* Filter events for the current X input method. GTK calls XFilterEvent but not for key press and release, so we do it here. */ if (xev->type == KeyPress || xev->type == KeyRelease) if (dpyinfo && x_filter_event (dpyinfo, xev)) return GDK_FILTER_REMOVE; #endif if (! dpyinfo) current_finish = X_EVENT_NORMAL; else { current_count += handle_one_xevent (dpyinfo, xev, ¤t_finish, current_hold_quit); } } else current_finish = x_dispatch_event (xev, xev->xany.display); if (current_finish == X_EVENT_GOTO_OUT || current_finish == X_EVENT_DROP) return GDK_FILTER_REMOVE; return GDK_FILTER_CONTINUE; } #endif /* USE_GTK */ /* Handles the XEvent EVENT on display DPYINFO. *FINISH is X_EVENT_GOTO_OUT if caller should stop reading events. *FINISH is zero if caller should continue reading events. *FINISH is X_EVENT_DROP if event should not be passed to the toolkit. We return the number of characters stored into the buffer. */ static int handle_one_xevent (dpyinfo, eventp, finish, hold_quit) struct x_display_info *dpyinfo; XEvent *eventp; int *finish; struct input_event *hold_quit; { union { struct input_event ie; struct selection_input_event sie; } inev; int count = 0; int do_help = 0; int nbytes = 0; struct frame *f; struct coding_system coding; XEvent event = *eventp; *finish = X_EVENT_NORMAL; EVENT_INIT (inev.ie); inev.ie.kind = NO_EVENT; inev.ie.arg = Qnil; switch (event.type) { case ClientMessage: { if (event.xclient.message_type == dpyinfo->Xatom_wm_protocols && event.xclient.format == 32) { if (event.xclient.data.l[0] == dpyinfo->Xatom_wm_take_focus) { /* Use x_any_window_to_frame because this could be the shell widget window if the frame has no title bar. */ f = x_any_window_to_frame (dpyinfo, event.xclient.window); #ifdef HAVE_X_I18N /* Not quite sure this is needed -pd */ if (f && FRAME_XIC (f)) XSetICFocus (FRAME_XIC (f)); #endif #if 0 /* Emacs sets WM hints whose `input' field is `true'. This instructs the WM to set the input focus automatically for Emacs with a call to XSetInputFocus. Setting WM_TAKE_FOCUS tells the WM to send us a ClientMessage WM_TAKE_FOCUS after it has set the focus. So, XSetInputFocus below is not needed. The call to XSetInputFocus below has also caused trouble. In cases where the XSetInputFocus done by the WM and the one below are temporally close (on a fast machine), the call below can generate additional FocusIn events which confuse Emacs. */ /* Since we set WM_TAKE_FOCUS, we must call XSetInputFocus explicitly. But not if f is null, since that might be an event for a deleted frame. */ if (f) { Display *d = event.xclient.display; /* Catch and ignore errors, in case window has been iconified by a window manager such as GWM. */ int count = x_catch_errors (d); XSetInputFocus (d, event.xclient.window, /* The ICCCM says this is the only valid choice. */ RevertToParent, event.xclient.data.l[1]); /* This is needed to detect the error if there is an error. */ XSync (d, False); x_uncatch_errors (d, count); } /* Not certain about handling scroll bars here */ #endif /* 0 */ goto done; } if (event.xclient.data.l[0] == dpyinfo->Xatom_wm_save_yourself) { /* Save state modify the WM_COMMAND property to something which can reinstate us. This notifies the session manager, who's looking for such a PropertyNotify. Can restart processing when a keyboard or mouse event arrives. */ /* If we have a session manager, don't set this. KDE will then start two Emacsen, one for the session manager and one for this. */ #ifdef HAVE_X_SM if (! x_session_have_connection ()) #endif { f = x_top_window_to_frame (dpyinfo, event.xclient.window); /* This is just so we only give real data once for a single Emacs process. */ if (f == SELECTED_FRAME ()) XSetCommand (FRAME_X_DISPLAY (f), event.xclient.window, initial_argv, initial_argc); else if (f) XSetCommand (FRAME_X_DISPLAY (f), event.xclient.window, 0, 0); } goto done; } if (event.xclient.data.l[0] == dpyinfo->Xatom_wm_delete_window) { f = x_any_window_to_frame (dpyinfo, event.xclient.window); if (!f) goto OTHER; /* May be a dialog that is to be removed */ inev.ie.kind = DELETE_WINDOW_EVENT; XSETFRAME (inev.ie.frame_or_window, f); goto done; } goto done; } if (event.xclient.message_type == dpyinfo->Xatom_wm_configure_denied) { goto done; } if (event.xclient.message_type == dpyinfo->Xatom_wm_window_moved) { int new_x, new_y; f = x_window_to_frame (dpyinfo, event.xclient.window); new_x = event.xclient.data.s[0]; new_y = event.xclient.data.s[1]; if (f) { f->left_pos = new_x; f->top_pos = new_y; } goto done; } #ifdef HACK_EDITRES if (event.xclient.message_type == dpyinfo->Xatom_editres) { f = x_any_window_to_frame (dpyinfo, event.xclient.window); _XEditResCheckMessages (f->output_data.x->widget, NULL, &event, NULL); goto done; } #endif /* HACK_EDITRES */ if ((event.xclient.message_type == dpyinfo->Xatom_DONE) || (event.xclient.message_type == dpyinfo->Xatom_PAGE)) { /* Ghostview job completed. Kill it. We could reply with "Next" if we received "Page", but we currently never do because we are interested in images, only, which should have 1 page. */ Pixmap pixmap = (Pixmap) event.xclient.data.l[1]; f = x_window_to_frame (dpyinfo, event.xclient.window); x_kill_gs_process (pixmap, f); expose_frame (f, 0, 0, 0, 0); goto done; } #ifdef USE_TOOLKIT_SCROLL_BARS /* Scroll bar callbacks send a ClientMessage from which we construct an input_event. */ if (event.xclient.message_type == dpyinfo->Xatom_Scrollbar) { x_scroll_bar_to_input_event (&event, &inev.ie); *finish = X_EVENT_GOTO_OUT; goto done; } #endif /* USE_TOOLKIT_SCROLL_BARS */ f = x_any_window_to_frame (dpyinfo, event.xclient.window); if (!f) goto OTHER; if (x_handle_dnd_message (f, &event.xclient, dpyinfo, &inev.ie)) *finish = X_EVENT_DROP; } break; case SelectionNotify: #ifdef USE_X_TOOLKIT if (! x_window_to_frame (dpyinfo, event.xselection.requestor)) goto OTHER; #endif /* not USE_X_TOOLKIT */ x_handle_selection_notify (&event.xselection); break; case SelectionClear: /* Someone has grabbed ownership. */ #ifdef USE_X_TOOLKIT if (! x_window_to_frame (dpyinfo, event.xselectionclear.window)) goto OTHER; #endif /* USE_X_TOOLKIT */ { XSelectionClearEvent *eventp = (XSelectionClearEvent *) &event; inev.ie.kind = SELECTION_CLEAR_EVENT; SELECTION_EVENT_DISPLAY (&inev.sie) = eventp->display; SELECTION_EVENT_SELECTION (&inev.sie) = eventp->selection; SELECTION_EVENT_TIME (&inev.sie) = eventp->time; inev.ie.frame_or_window = Qnil; } break; case SelectionRequest: /* Someone wants our selection. */ #ifdef USE_X_TOOLKIT if (!x_window_to_frame (dpyinfo, event.xselectionrequest.owner)) goto OTHER; #endif /* USE_X_TOOLKIT */ { XSelectionRequestEvent *eventp = (XSelectionRequestEvent *) &event; inev.ie.kind = SELECTION_REQUEST_EVENT; SELECTION_EVENT_DISPLAY (&inev.sie) = eventp->display; SELECTION_EVENT_REQUESTOR (&inev.sie) = eventp->requestor; SELECTION_EVENT_SELECTION (&inev.sie) = eventp->selection; SELECTION_EVENT_TARGET (&inev.sie) = eventp->target; SELECTION_EVENT_PROPERTY (&inev.sie) = eventp->property; SELECTION_EVENT_TIME (&inev.sie) = eventp->time; inev.ie.frame_or_window = Qnil; } break; case PropertyNotify: #if 0 /* This is plain wrong. In the case that we are waiting for a PropertyNotify used as an ACK in incremental selection transfer, the property will be on the receiver's window. */ #if defined USE_X_TOOLKIT if (!x_any_window_to_frame (dpyinfo, event.xproperty.window)) goto OTHER; #endif #endif x_handle_property_notify (&event.xproperty); goto OTHER; case ReparentNotify: f = x_top_window_to_frame (dpyinfo, event.xreparent.window); if (f) { int x, y; f->output_data.x->parent_desc = event.xreparent.parent; x_real_positions (f, &x, &y); f->left_pos = x; f->top_pos = y; /* Perhaps reparented due to a WM restart. Reset this. */ FRAME_X_DISPLAY_INFO (f)->wm_type = X_WMTYPE_UNKNOWN; } goto OTHER; case Expose: f = x_window_to_frame (dpyinfo, event.xexpose.window); if (f) { x_check_fullscreen (f); #ifdef USE_GTK /* This seems to be needed for GTK 2.6. */ x_clear_area (event.xexpose.display, event.xexpose.window, event.xexpose.x, event.xexpose.y, event.xexpose.width, event.xexpose.height, FALSE); #endif if (f->async_visible == 0) { f->async_visible = 1; f->async_iconified = 0; f->output_data.x->has_been_visible = 1; SET_FRAME_GARBAGED (f); } else expose_frame (f, event.xexpose.x, event.xexpose.y, event.xexpose.width, event.xexpose.height); } else { #ifndef USE_TOOLKIT_SCROLL_BARS struct scroll_bar *bar; #endif #if defined USE_LUCID /* Submenus of the Lucid menu bar aren't widgets themselves, so there's no way to dispatch events to them. Recognize this case separately. */ { Widget widget = x_window_to_menu_bar (event.xexpose.window); if (widget) xlwmenu_redisplay (widget); } #endif /* USE_LUCID */ #ifdef USE_TOOLKIT_SCROLL_BARS /* Dispatch event to the widget. */ goto OTHER; #else /* not USE_TOOLKIT_SCROLL_BARS */ bar = x_window_to_scroll_bar (event.xexpose.display, event.xexpose.window); if (bar) x_scroll_bar_expose (bar, &event); #ifdef USE_X_TOOLKIT else goto OTHER; #endif /* USE_X_TOOLKIT */ #endif /* not USE_TOOLKIT_SCROLL_BARS */ } break; case GraphicsExpose: /* This occurs when an XCopyArea's source area was obscured or not available. */ f = x_window_to_frame (dpyinfo, event.xgraphicsexpose.drawable); if (f) { expose_frame (f, event.xgraphicsexpose.x, event.xgraphicsexpose.y, event.xgraphicsexpose.width, event.xgraphicsexpose.height); } #ifdef USE_X_TOOLKIT else goto OTHER; #endif /* USE_X_TOOLKIT */ break; case NoExpose: /* This occurs when an XCopyArea's source area was completely available. */ break; case UnmapNotify: /* Redo the mouse-highlight after the tooltip has gone. */ if (event.xmap.window == tip_window) { tip_window = 0; redo_mouse_highlight (); } f = x_top_window_to_frame (dpyinfo, event.xunmap.window); if (f) /* F may no longer exist if the frame was deleted. */ { /* While a frame is unmapped, display generation is disabled; you don't want to spend time updating a display that won't ever be seen. */ f->async_visible = 0; /* We can't distinguish, from the event, whether the window has become iconified or invisible. So assume, if it was previously visible, than now it is iconified. But x_make_frame_invisible clears both the visible flag and the iconified flag; and that way, we know the window is not iconified now. */ if (FRAME_VISIBLE_P (f) || FRAME_ICONIFIED_P (f)) { f->async_iconified = 1; inev.ie.kind = ICONIFY_EVENT; XSETFRAME (inev.ie.frame_or_window, f); } } goto OTHER; case MapNotify: if (event.xmap.window == tip_window) /* The tooltip has been drawn already. Avoid the SET_FRAME_GARBAGED below. */ goto OTHER; /* We use x_top_window_to_frame because map events can come for sub-windows and they don't mean that the frame is visible. */ f = x_top_window_to_frame (dpyinfo, event.xmap.window); if (f) { /* wait_reading_process_output will notice this and update the frame's display structures. If we where iconified, we should not set garbaged, because that stops redrawing on Expose events. This looks bad if we are called from a recursive event loop (x_dispatch_event), for example when a dialog is up. */ if (! f->async_iconified) SET_FRAME_GARBAGED (f); f->async_visible = 1; f->async_iconified = 0; f->output_data.x->has_been_visible = 1; if (f->iconified) { inev.ie.kind = DEICONIFY_EVENT; XSETFRAME (inev.ie.frame_or_window, f); } else if (! NILP (Vframe_list) && ! NILP (XCDR (Vframe_list))) /* Force a redisplay sooner or later to update the frame titles in case this is the second frame. */ record_asynch_buffer_change (); } goto OTHER; case KeyPress: ignore_next_mouse_click_timeout = 0; #if defined (USE_X_TOOLKIT) || defined (USE_GTK) /* Dispatch KeyPress events when in menu. */ if (popup_activated ()) goto OTHER; #endif f = x_any_window_to_frame (dpyinfo, event.xkey.window); if (!dpyinfo->mouse_face_hidden && INTEGERP (Vmouse_highlight)) { clear_mouse_face (dpyinfo); dpyinfo->mouse_face_hidden = 1; } #if defined USE_MOTIF && defined USE_TOOLKIT_SCROLL_BARS if (f == 0) { /* Scroll bars consume key events, but we want the keys to go to the scroll bar's frame. */ Widget widget = XtWindowToWidget (dpyinfo->display, event.xkey.window); if (widget && XmIsScrollBar (widget)) { widget = XtParent (widget); f = x_any_window_to_frame (dpyinfo, XtWindow (widget)); } } #endif /* USE_MOTIF and USE_TOOLKIT_SCROLL_BARS */ if (f != 0) { KeySym keysym, orig_keysym; /* al%imercury@uunet.uu.net says that making this 81 instead of 80 fixed a bug whereby meta chars made his Emacs hang. It seems that some version of XmbLookupString has a bug of not returning XBufferOverflow in status_return even if the input is too long to fit in 81 bytes. So, we must prepare sufficient bytes for copy_buffer. 513 bytes (256 chars for two-byte character set) seems to be a fairly good approximation. -- 2000.8.10 handa@etl.go.jp */ unsigned char copy_buffer[513]; unsigned char *copy_bufptr = copy_buffer; int copy_bufsiz = sizeof (copy_buffer); int modifiers; Lisp_Object coding_system = Qlatin_1; Lisp_Object c; #ifdef USE_GTK /* Don't pass keys to GTK. A Tab will shift focus to the tool bar in GTK 2.4. Keys will still go to menus and dialogs because in that case popup_activated is TRUE (see above). */ *finish = X_EVENT_DROP; #endif event.xkey.state |= x_emacs_to_x_modifiers (FRAME_X_DISPLAY_INFO (f), extra_keyboard_modifiers); modifiers = event.xkey.state; /* This will have to go some day... */ /* make_lispy_event turns chars into control chars. Don't do it here because XLookupString is too eager. */ event.xkey.state &= ~ControlMask; event.xkey.state &= ~(dpyinfo->meta_mod_mask | dpyinfo->super_mod_mask | dpyinfo->hyper_mod_mask | dpyinfo->alt_mod_mask); /* In case Meta is ComposeCharacter, clear its status. According to Markus Ehrnsperger Markus.Ehrnsperger@lehrstuhl-bross.physik.uni-muenchen.de this enables ComposeCharacter to work whether or not it is combined with Meta. */ if (modifiers & dpyinfo->meta_mod_mask) bzero (&compose_status, sizeof (compose_status)); #ifdef HAVE_X_I18N if (FRAME_XIC (f)) { Status status_return; coding_system = Vlocale_coding_system; nbytes = XmbLookupString (FRAME_XIC (f), &event.xkey, copy_bufptr, copy_bufsiz, &keysym, &status_return); if (status_return == XBufferOverflow) { copy_bufsiz = nbytes + 1; copy_bufptr = (char *) alloca (copy_bufsiz); nbytes = XmbLookupString (FRAME_XIC (f), &event.xkey, copy_bufptr, copy_bufsiz, &keysym, &status_return); } /* Xutf8LookupString is a new but already deprecated interface. -stef */ #if 0 && defined X_HAVE_UTF8_STRING else if (status_return == XLookupKeySym) { /* Try again but with utf-8. */ coding_system = Qutf_8; nbytes = Xutf8LookupString (FRAME_XIC (f), &event.xkey, copy_bufptr, copy_bufsiz, &keysym, &status_return); if (status_return == XBufferOverflow) { copy_bufsiz = nbytes + 1; copy_bufptr = (char *) alloca (copy_bufsiz); nbytes = Xutf8LookupString (FRAME_XIC (f), &event.xkey, copy_bufptr, copy_bufsiz, &keysym, &status_return); } } #endif if (status_return == XLookupNone) break; else if (status_return == XLookupChars) { keysym = NoSymbol; modifiers = 0; } else if (status_return != XLookupKeySym && status_return != XLookupBoth) abort (); } else nbytes = XLookupString (&event.xkey, copy_bufptr, copy_bufsiz, &keysym, &compose_status); #else nbytes = XLookupString (&event.xkey, copy_bufptr, copy_bufsiz, &keysym, &compose_status); #endif /* If not using XIM/XIC, and a compose sequence is in progress, we break here. Otherwise, chars_matched is always 0. */ if (compose_status.chars_matched > 0 && nbytes == 0) break; orig_keysym = keysym; /* Common for all keysym input events. */ XSETFRAME (inev.ie.frame_or_window, f); inev.ie.modifiers = x_x_to_emacs_modifiers (FRAME_X_DISPLAY_INFO (f), modifiers); inev.ie.timestamp = event.xkey.time; /* First deal with keysyms which have defined translations to characters. */ if (keysym >= 32 && keysym < 128) /* Avoid explicitly decoding each ASCII character. */ { inev.ie.kind = ASCII_KEYSTROKE_EVENT; inev.ie.code = keysym; goto done_keysym; } /* Now non-ASCII. */ if (HASH_TABLE_P (Vx_keysym_table) && (NATNUMP (c = Fgethash (make_number (keysym), Vx_keysym_table, Qnil)))) { inev.ie.kind = (SINGLE_BYTE_CHAR_P (XFASTINT (c)) ? ASCII_KEYSTROKE_EVENT : MULTIBYTE_CHAR_KEYSTROKE_EVENT); inev.ie.code = XFASTINT (c); goto done_keysym; } /* Random non-modifier sorts of keysyms. */ if (((keysym >= XK_BackSpace && keysym <= XK_Escape) || keysym == XK_Delete #ifdef XK_ISO_Left_Tab || (keysym >= XK_ISO_Left_Tab && keysym <= XK_ISO_Enter) #endif || IsCursorKey (keysym) /* 0xff50 <= x < 0xff60 */ || IsMiscFunctionKey (keysym) /* 0xff60 <= x < VARIES */ #ifdef HPUX /* This recognizes the "extended function keys". It seems there's no cleaner way. Test IsModifierKey to avoid handling mode_switch incorrectly. */ || ((unsigned) (keysym) >= XK_Select && (unsigned)(keysym) < XK_KP_Space) #endif #ifdef XK_dead_circumflex || orig_keysym == XK_dead_circumflex #endif #ifdef XK_dead_grave || orig_keysym == XK_dead_grave #endif #ifdef XK_dead_tilde || orig_keysym == XK_dead_tilde #endif #ifdef XK_dead_diaeresis || orig_keysym == XK_dead_diaeresis #endif #ifdef XK_dead_macron || orig_keysym == XK_dead_macron #endif #ifdef XK_dead_degree || orig_keysym == XK_dead_degree #endif #ifdef XK_dead_acute || orig_keysym == XK_dead_acute #endif #ifdef XK_dead_cedilla || orig_keysym == XK_dead_cedilla #endif #ifdef XK_dead_breve || orig_keysym == XK_dead_breve #endif #ifdef XK_dead_ogonek || orig_keysym == XK_dead_ogonek #endif #ifdef XK_dead_caron || orig_keysym == XK_dead_caron #endif #ifdef XK_dead_doubleacute || orig_keysym == XK_dead_doubleacute #endif #ifdef XK_dead_abovedot || orig_keysym == XK_dead_abovedot #endif || IsKeypadKey (keysym) /* 0xff80 <= x < 0xffbe */ || IsFunctionKey (keysym) /* 0xffbe <= x < 0xffe1 */ /* Any "vendor-specific" key is ok. */ || (orig_keysym & (1 << 28)) || (keysym != NoSymbol && nbytes == 0)) && ! (IsModifierKey (orig_keysym) #ifndef HAVE_X11R5 #ifdef XK_Mode_switch || ((unsigned)(orig_keysym) == XK_Mode_switch) #endif #ifdef XK_Num_Lock || ((unsigned)(orig_keysym) == XK_Num_Lock) #endif #endif /* not HAVE_X11R5 */ /* The symbols from XK_ISO_Lock to XK_ISO_Last_Group_Lock don't have real modifiers but should be treated similarly to Mode_switch by Emacs. */ #if defined XK_ISO_Lock && defined XK_ISO_Last_Group_Lock || ((unsigned)(orig_keysym) >= XK_ISO_Lock && (unsigned)(orig_keysym) <= XK_ISO_Last_Group_Lock) #endif )) { STORE_KEYSYM_FOR_DEBUG (keysym); /* make_lispy_event will convert this to a symbolic key. */ inev.ie.kind = NON_ASCII_KEYSTROKE_EVENT; inev.ie.code = keysym; goto done_keysym; } { /* Raw bytes, not keysym. */ register int i; register int c; int nchars, len; /* The input should be decoded with `coding_system' which depends on which X*LookupString function we used just above and the locale. */ setup_coding_system (coding_system, &coding); coding.src_multibyte = 0; coding.dst_multibyte = 1; /* The input is converted to events, thus we can't handle composition. Anyway, there's no XIM that gives us composition information. */ coding.composing = COMPOSITION_DISABLED; for (i = 0; i < nbytes; i++) { STORE_KEYSYM_FOR_DEBUG (copy_bufptr[i]); } { /* Decode the input data. */ int require; unsigned char *p; require = decoding_buffer_size (&coding, nbytes); p = (unsigned char *) alloca (require); coding.mode |= CODING_MODE_LAST_BLOCK; /* We explicitly disable composition handling because key data should not contain any composition sequence. */ coding.composing = COMPOSITION_DISABLED; decode_coding (&coding, copy_bufptr, p, nbytes, require); nbytes = coding.produced; nchars = coding.produced_char; copy_bufptr = p; } /* Convert the input data to a sequence of character events. */ for (i = 0; i < nbytes; i += len) { if (nchars == nbytes) c = copy_bufptr[i], len = 1; else c = STRING_CHAR_AND_LENGTH (copy_bufptr + i, nbytes - i, len); inev.ie.kind = (SINGLE_BYTE_CHAR_P (c) ? ASCII_KEYSTROKE_EVENT : MULTIBYTE_CHAR_KEYSTROKE_EVENT); inev.ie.code = c; kbd_buffer_store_event_hold (&inev.ie, hold_quit); } /* Previous code updated count by nchars rather than nbytes, but that seems bogus to me. ++kfs */ count += nbytes; inev.ie.kind = NO_EVENT; /* Already stored above. */ if (keysym == NoSymbol) break; } } done_keysym: #ifdef HAVE_X_I18N /* Don't dispatch this event since XtDispatchEvent calls XFilterEvent, and two calls in a row may freeze the client. */ break; #else goto OTHER; #endif case KeyRelease: #ifdef HAVE_X_I18N /* Don't dispatch this event since XtDispatchEvent calls XFilterEvent, and two calls in a row may freeze the client. */ break; #else goto OTHER; #endif case EnterNotify: x_detect_focus_change (dpyinfo, &event, &inev.ie); f = x_any_window_to_frame (dpyinfo, event.xcrossing.window); if (f && x_mouse_click_focus_ignore_position) ignore_next_mouse_click_timeout = event.xmotion.time + 200; #if 0 if (event.xcrossing.focus) { /* Avoid nasty pop/raise loops. */ if (f && (!(f->auto_raise) || !(f->auto_lower) || (event.xcrossing.time - enter_timestamp) > 500)) { x_new_focus_frame (dpyinfo, f); enter_timestamp = event.xcrossing.time; } } else if (f == dpyinfo->x_focus_frame) x_new_focus_frame (dpyinfo, 0); #endif /* EnterNotify counts as mouse movement, so update things that depend on mouse position. */ if (f && !f->output_data.x->hourglass_p) note_mouse_movement (f, &event.xmotion); goto OTHER; case FocusIn: x_detect_focus_change (dpyinfo, &event, &inev.ie); goto OTHER; case LeaveNotify: x_detect_focus_change (dpyinfo, &event, &inev.ie); f = x_top_window_to_frame (dpyinfo, event.xcrossing.window); if (f) { if (f == dpyinfo->mouse_face_mouse_frame) { /* If we move outside the frame, then we're certainly no longer on any text in the frame. */ clear_mouse_face (dpyinfo); dpyinfo->mouse_face_mouse_frame = 0; } /* Generate a nil HELP_EVENT to cancel a help-echo. Do it only if there's something to cancel. Otherwise, the startup message is cleared when the mouse leaves the frame. */ if (any_help_event_p) do_help = -1; } goto OTHER; case FocusOut: x_detect_focus_change (dpyinfo, &event, &inev.ie); goto OTHER; case MotionNotify: { previous_help_echo_string = help_echo_string; help_echo_string = help_echo_object = help_echo_window = Qnil; help_echo_pos = -1; if (dpyinfo->grabbed && last_mouse_frame && FRAME_LIVE_P (last_mouse_frame)) f = last_mouse_frame; else f = x_window_to_frame (dpyinfo, event.xmotion.window); if (dpyinfo->mouse_face_hidden) { dpyinfo->mouse_face_hidden = 0; clear_mouse_face (dpyinfo); } if (f) { /* Generate SELECT_WINDOW_EVENTs when needed. */ if (mouse_autoselect_window) { Lisp_Object window; window = window_from_coordinates (f, event.xmotion.x, event.xmotion.y, 0, 0, 0, 0); /* Window will be selected only when it is not selected now and last mouse movement event was not in it. Minibuffer window will be selected iff it is active. */ if (WINDOWP (window) && !EQ (window, last_window) && !EQ (window, selected_window)) { inev.ie.kind = SELECT_WINDOW_EVENT; inev.ie.frame_or_window = window; } last_window=window; } note_mouse_movement (f, &event.xmotion); } else { #ifndef USE_TOOLKIT_SCROLL_BARS struct scroll_bar *bar = x_window_to_scroll_bar (event.xmotion.display, event.xmotion.window); if (bar) x_scroll_bar_note_movement (bar, &event); #endif /* USE_TOOLKIT_SCROLL_BARS */ /* If we move outside the frame, then we're certainly no longer on any text in the frame. */ clear_mouse_face (dpyinfo); } /* If the contents of the global variable help_echo_string has changed, generate a HELP_EVENT. */ if (!NILP (help_echo_string) || !NILP (previous_help_echo_string)) do_help = 1; goto OTHER; } case ConfigureNotify: f = x_top_window_to_frame (dpyinfo, event.xconfigure.window); if (f) { #ifndef USE_X_TOOLKIT #ifdef USE_GTK xg_resize_widgets (f, event.xconfigure.width, event.xconfigure.height); #else /* not USE_GTK */ /* If there is a pending resize for fullscreen, don't do this one, the right one will come later. The toolkit version doesn't seem to need this, but we need to reset it below. */ int dont_resize = ((f->want_fullscreen & FULLSCREEN_WAIT) && f->new_text_cols != 0); int rows = FRAME_PIXEL_HEIGHT_TO_TEXT_LINES (f, event.xconfigure.height); int columns = FRAME_PIXEL_WIDTH_TO_TEXT_COLS (f, event.xconfigure.width); if (dont_resize) goto OTHER; /* In the toolkit version, change_frame_size is called by the code that handles resizing of the EmacsFrame widget. */ /* Even if the number of character rows and columns has not changed, the font size may have changed, so we need to check the pixel dimensions as well. */ if (columns != FRAME_COLS (f) || rows != FRAME_LINES (f) || event.xconfigure.width != FRAME_PIXEL_WIDTH (f) || event.xconfigure.height != FRAME_PIXEL_HEIGHT (f)) { change_frame_size (f, rows, columns, 0, 1, 0); SET_FRAME_GARBAGED (f); cancel_mouse_face (f); } #endif /* not USE_GTK */ #endif FRAME_PIXEL_WIDTH (f) = event.xconfigure.width; FRAME_PIXEL_HEIGHT (f) = event.xconfigure.height; #ifdef USE_GTK /* GTK creates windows but doesn't map them. Only get real positions and check fullscreen when mapped. */ if (FRAME_GTK_OUTER_WIDGET (f) && GTK_WIDGET_MAPPED (FRAME_GTK_OUTER_WIDGET (f))) #endif { /* What we have now is the position of Emacs's own window. Convert that to the position of the window manager window. */ x_real_positions (f, &f->left_pos, &f->top_pos); x_check_expected_move (f); if (f->want_fullscreen & FULLSCREEN_WAIT) f->want_fullscreen &= ~(FULLSCREEN_WAIT|FULLSCREEN_BOTH); } #ifdef HAVE_X_I18N if (FRAME_XIC (f) && (FRAME_XIC_STYLE (f) & XIMStatusArea)) xic_set_statusarea (f); #endif if (f->output_data.x->parent_desc != FRAME_X_DISPLAY_INFO (f)->root_window) { /* Since the WM decorations come below top_pos now, we must put them below top_pos in the future. */ f->win_gravity = NorthWestGravity; x_wm_set_size_hint (f, (long) 0, 0); } } goto OTHER; case ButtonRelease: case ButtonPress: { /* If we decide we want to generate an event to be seen by the rest of Emacs, we put it here. */ int tool_bar_p = 0; bzero (&compose_status, sizeof (compose_status)); if (dpyinfo->grabbed && last_mouse_frame && FRAME_LIVE_P (last_mouse_frame)) f = last_mouse_frame; else f = x_window_to_frame (dpyinfo, event.xbutton.window); if (f) { /* Is this in the tool-bar? */ if (WINDOWP (f->tool_bar_window) && WINDOW_TOTAL_LINES (XWINDOW (f->tool_bar_window))) { Lisp_Object window; int x = event.xbutton.x; int y = event.xbutton.y; window = window_from_coordinates (f, x, y, 0, 0, 0, 1); if (EQ (window, f->tool_bar_window)) { if (event.xbutton.type == ButtonPress) handle_tool_bar_click (f, x, y, 1, 0); else handle_tool_bar_click (f, x, y, 0, x_x_to_emacs_modifiers (dpyinfo, event.xbutton.state)); tool_bar_p = 1; } } if (!tool_bar_p) if (!dpyinfo->x_focus_frame || f == dpyinfo->x_focus_frame) { #if defined (USE_X_TOOLKIT) || defined (USE_GTK) if (! popup_activated ()) #endif { if (ignore_next_mouse_click_timeout) { if (event.type == ButtonPress && (int)(event.xbutton.time - ignore_next_mouse_click_timeout) > 0) { ignore_next_mouse_click_timeout = 0; construct_mouse_click (&inev.ie, &event, f); } if (event.type == ButtonRelease) ignore_next_mouse_click_timeout = 0; } else construct_mouse_click (&inev.ie, &event, f); } } } else { struct scroll_bar *bar = x_window_to_scroll_bar (event.xbutton.display, event.xbutton.window); #ifdef USE_TOOLKIT_SCROLL_BARS /* Make the "Ctrl-Mouse-2 splits window" work for toolkit scroll bars. */ if (bar && event.xbutton.state & ControlMask) { x_scroll_bar_handle_click (bar, &event, &inev.ie); *finish = X_EVENT_DROP; } #else /* not USE_TOOLKIT_SCROLL_BARS */ if (bar) x_scroll_bar_handle_click (bar, &event, &inev.ie); #endif /* not USE_TOOLKIT_SCROLL_BARS */ } if (event.type == ButtonPress) { dpyinfo->grabbed |= (1 << event.xbutton.button); last_mouse_frame = f; /* Ignore any mouse motion that happened before this event; any subsequent mouse-movement Emacs events should reflect only motion after the ButtonPress. */ if (f != 0) f->mouse_moved = 0; if (!tool_bar_p) last_tool_bar_item = -1; } else dpyinfo->grabbed &= ~(1 << event.xbutton.button); #if defined (USE_X_TOOLKIT) || defined (USE_GTK) f = x_menubar_window_to_frame (dpyinfo, event.xbutton.window); /* For a down-event in the menu bar, don't pass it to Xt right now. Instead, save it away and we will pass it to Xt from kbd_buffer_get_event. That way, we can run some Lisp code first. */ if ( #ifdef USE_GTK ! popup_activated () && #endif f && event.type == ButtonPress /* Verify the event is really within the menu bar and not just sent to it due to grabbing. */ && event.xbutton.x >= 0 && event.xbutton.x < FRAME_PIXEL_WIDTH (f) && event.xbutton.y >= 0 && event.xbutton.y < f->output_data.x->menubar_height && event.xbutton.same_screen) { SET_SAVED_BUTTON_EVENT; XSETFRAME (last_mouse_press_frame, f); #ifdef USE_GTK *finish = X_EVENT_DROP; #endif } else if (event.type == ButtonPress) { last_mouse_press_frame = Qnil; goto OTHER; } #ifdef USE_MOTIF /* This should do not harm for Lucid, but I am trying to be cautious. */ else if (event.type == ButtonRelease) { if (!NILP (last_mouse_press_frame)) { f = XFRAME (last_mouse_press_frame); if (f->output_data.x) SET_SAVED_BUTTON_EVENT; } else goto OTHER; } #endif /* USE_MOTIF */ else goto OTHER; #endif /* USE_X_TOOLKIT || USE_GTK */ } break; case CirculateNotify: goto OTHER; case CirculateRequest: goto OTHER; case VisibilityNotify: goto OTHER; case MappingNotify: /* Someone has changed the keyboard mapping - update the local cache. */ switch (event.xmapping.request) { case MappingModifier: x_find_modifier_meanings (dpyinfo); /* This is meant to fall through. */ case MappingKeyboard: XRefreshKeyboardMapping (&event.xmapping); } goto OTHER; default: OTHER: #ifdef USE_X_TOOLKIT BLOCK_INPUT; if (*finish != X_EVENT_DROP) XtDispatchEvent (&event); UNBLOCK_INPUT; #endif /* USE_X_TOOLKIT */ break; } done: if (inev.ie.kind != NO_EVENT) { kbd_buffer_store_event_hold (&inev.ie, hold_quit); count++; } if (do_help && !(hold_quit && hold_quit->kind != NO_EVENT)) { Lisp_Object frame; if (f) XSETFRAME (frame, f); else frame = Qnil; if (do_help > 0) { any_help_event_p = 1; gen_help_event (help_echo_string, frame, help_echo_window, help_echo_object, help_echo_pos); } else { help_echo_string = Qnil; gen_help_event (Qnil, frame, Qnil, Qnil, 0); } count++; } *eventp = event; return count; } /* Handles the XEvent EVENT on display DISPLAY. This is used for event loops outside the normal event handling, i.e. looping while a popup menu or a dialog is posted. Returns the value handle_one_xevent sets in the finish argument. */ int x_dispatch_event (event, display) XEvent *event; Display *display; { struct x_display_info *dpyinfo; int finish = X_EVENT_NORMAL; dpyinfo = x_display_info_for_display (display); if (dpyinfo) handle_one_xevent (dpyinfo, event, &finish, 0); return finish; } /* Read events coming from the X server. This routine is called by the SIGIO handler. We return as soon as there are no more events to be read. We return the number of characters stored into the buffer, thus pretending to be `read'. EXPECTED is nonzero if the caller knows input is available. */ static int XTread_socket (sd, expected, hold_quit) register int sd; int expected; struct input_event *hold_quit; { int count = 0; XEvent event; int event_found = 0; struct x_display_info *dpyinfo; if (interrupt_input_blocked) { interrupt_input_pending = 1; return -1; } interrupt_input_pending = 0; BLOCK_INPUT; /* So people can tell when we have read the available input. */ input_signal_count++; ++handling_signal; /* Find the display we are supposed to read input for. It's the one communicating on descriptor SD. */ for (dpyinfo = x_display_list; dpyinfo; dpyinfo = dpyinfo->next) { #if 0 /* This ought to be unnecessary; let's verify it. */ #ifdef FIOSNBIO /* If available, Xlib uses FIOSNBIO to make the socket non-blocking, and then looks for EWOULDBLOCK. If O_NDELAY is set, FIOSNBIO is ignored, and instead of signaling EWOULDBLOCK, a read returns 0, which Xlib interprets as equivalent to EPIPE. */ fcntl (dpyinfo->connection, F_SETFL, 0); #endif /* ! defined (FIOSNBIO) */ #endif #if 0 /* This code can't be made to work, with multiple displays, and appears not to be used on any system any more. Also keyboard.c doesn't turn O_NDELAY on and off for X connections. */ #ifndef SIGIO #ifndef HAVE_SELECT if (! (fcntl (dpyinfo->connection, F_GETFL, 0) & O_NDELAY)) { extern int read_alarm_should_throw; read_alarm_should_throw = 1; XPeekEvent (dpyinfo->display, &event); read_alarm_should_throw = 0; } #endif /* HAVE_SELECT */ #endif /* SIGIO */ #endif /* For debugging, this gives a way to fake an I/O error. */ if (dpyinfo == XTread_socket_fake_io_error) { XTread_socket_fake_io_error = 0; x_io_error_quitter (dpyinfo->display); } #ifdef HAVE_X_SM { struct input_event inev; BLOCK_INPUT; /* We don't need to EVENT_INIT (inev) here, as x_session_check_input copies an entire input_event. */ if (x_session_check_input (&inev)) { kbd_buffer_store_event_hold (&inev, hold_quit); count++; } UNBLOCK_INPUT; } #endif #ifndef USE_GTK while (XPending (dpyinfo->display)) { int finish; XNextEvent (dpyinfo->display, &event); #ifdef HAVE_X_I18N /* Filter events for the current X input method. */ if (x_filter_event (dpyinfo, &event)) break; #endif event_found = 1; count += handle_one_xevent (dpyinfo, &event, &finish, hold_quit); if (finish == X_EVENT_GOTO_OUT) goto out; } #endif /* not USE_GTK */ } #ifdef USE_GTK /* For GTK we must use the GTK event loop. But XEvents gets passed to our filter function above, and then to the big event switch. We use a bunch of globals to communicate with our filter function, that is kind of ugly, but it works. There is no way to do one display at the time, GTK just does events from all displays. */ while (gtk_events_pending ()) { current_count = count; current_hold_quit = hold_quit; gtk_main_iteration (); count = current_count; current_count = -1; current_hold_quit = 0; if (current_finish == X_EVENT_GOTO_OUT) break; } #endif /* USE_GTK */ out:; /* On some systems, an X bug causes Emacs to get no more events when the window is destroyed. Detect that. (1994.) */ if (! event_found) { /* Emacs and the X Server eats up CPU time if XNoOp is done every time. One XNOOP in 100 loops will make Emacs terminate. B. Bretthauer, 1994 */ x_noop_count++; if (x_noop_count >= 100) { x_noop_count=0; if (next_noop_dpyinfo == 0) next_noop_dpyinfo = x_display_list; XNoOp (next_noop_dpyinfo->display); /* Each time we get here, cycle through the displays now open. */ next_noop_dpyinfo = next_noop_dpyinfo->next; } } /* If the focus was just given to an auto-raising frame, raise it now. */ /* ??? This ought to be able to handle more than one such frame. */ if (pending_autoraise_frame) { x_raise_frame (pending_autoraise_frame); pending_autoraise_frame = 0; } --handling_signal; UNBLOCK_INPUT; return count; } /*********************************************************************** Text Cursor ***********************************************************************/ /* Set clipping for output in glyph row ROW. W is the window in which we operate. GC is the graphics context to set clipping in. ROW may be a text row or, e.g., a mode line. Text rows must be clipped to the interior of the window dedicated to text display, mode lines must be clipped to the whole window. */ static void x_clip_to_row (w, row, area, gc) struct window *w; struct glyph_row *row; int area; GC gc; { struct frame *f = XFRAME (WINDOW_FRAME (w)); XRectangle clip_rect; int window_x, window_y, window_width; window_box (w, area, &window_x, &window_y, &window_width, 0); clip_rect.x = window_x; clip_rect.y = WINDOW_TO_FRAME_PIXEL_Y (w, max (0, row->y)); clip_rect.y = max (clip_rect.y, window_y); clip_rect.width = window_width; clip_rect.height = row->visible_height; XSetClipRectangles (FRAME_X_DISPLAY (f), gc, 0, 0, &clip_rect, 1, Unsorted); } /* Draw a hollow box cursor on window W in glyph row ROW. */ static void x_draw_hollow_cursor (w, row) struct window *w; struct glyph_row *row; { struct frame *f = XFRAME (WINDOW_FRAME (w)); struct x_display_info *dpyinfo = FRAME_X_DISPLAY_INFO (f); Display *dpy = FRAME_X_DISPLAY (f); int x, y, wd, h; XGCValues xgcv; struct glyph *cursor_glyph; GC gc; /* Get the glyph the cursor is on. If we can't tell because the current matrix is invalid or such, give up. */ cursor_glyph = get_phys_cursor_glyph (w); if (cursor_glyph == NULL) return; /* Compute frame-relative coordinates for phys cursor. */ x = WINDOW_TEXT_TO_FRAME_PIXEL_X (w, w->phys_cursor.x); y = get_phys_cursor_geometry (w, row, cursor_glyph, &h); wd = w->phys_cursor_width; /* The foreground of cursor_gc is typically the same as the normal background color, which can cause the cursor box to be invisible. */ xgcv.foreground = f->output_data.x->cursor_pixel; if (dpyinfo->scratch_cursor_gc) XChangeGC (dpy, dpyinfo->scratch_cursor_gc, GCForeground, &xgcv); else dpyinfo->scratch_cursor_gc = XCreateGC (dpy, FRAME_X_WINDOW (f), GCForeground, &xgcv); gc = dpyinfo->scratch_cursor_gc; /* Set clipping, draw the rectangle, and reset clipping again. */ x_clip_to_row (w, row, TEXT_AREA, gc); XDrawRectangle (dpy, FRAME_X_WINDOW (f), gc, x, y, wd, h); XSetClipMask (dpy, gc, None); } /* Draw a bar cursor on window W in glyph row ROW. Implementation note: One would like to draw a bar cursor with an angle equal to the one given by the font property XA_ITALIC_ANGLE. Unfortunately, I didn't find a font yet that has this property set. --gerd. */ static void x_draw_bar_cursor (w, row, width, kind) struct window *w; struct glyph_row *row; int width; enum text_cursor_kinds kind; { struct frame *f = XFRAME (w->frame); struct glyph *cursor_glyph; /* If cursor is out of bounds, don't draw garbage. This can happen in mini-buffer windows when switching between echo area glyphs and mini-buffer. */ cursor_glyph = get_phys_cursor_glyph (w); if (cursor_glyph == NULL) return; /* If on an image, draw like a normal cursor. That's usually better visible than drawing a bar, esp. if the image is large so that the bar might not be in the window. */ if (cursor_glyph->type == IMAGE_GLYPH) { struct glyph_row *row; row = MATRIX_ROW (w->current_matrix, w->phys_cursor.vpos); draw_phys_cursor_glyph (w, row, DRAW_CURSOR); } else { Display *dpy = FRAME_X_DISPLAY (f); Window window = FRAME_X_WINDOW (f); GC gc = FRAME_X_DISPLAY_INFO (f)->scratch_cursor_gc; unsigned long mask = GCForeground | GCBackground | GCGraphicsExposures; struct face *face = FACE_FROM_ID (f, cursor_glyph->face_id); XGCValues xgcv; /* If the glyph's background equals the color we normally draw the bar cursor in, the bar cursor in its normal color is invisible. Use the glyph's foreground color instead in this case, on the assumption that the glyph's colors are chosen so that the glyph is legible. */ if (face->background == f->output_data.x->cursor_pixel) xgcv.background = xgcv.foreground = face->foreground; else xgcv.background = xgcv.foreground = f->output_data.x->cursor_pixel; xgcv.graphics_exposures = 0; if (gc) XChangeGC (dpy, gc, mask, &xgcv); else { gc = XCreateGC (dpy, window, mask, &xgcv); FRAME_X_DISPLAY_INFO (f)->scratch_cursor_gc = gc; } if (width < 0) width = FRAME_CURSOR_WIDTH (f); width = min (cursor_glyph->pixel_width, width); w->phys_cursor_width = width; x_clip_to_row (w, row, TEXT_AREA, gc); if (kind == BAR_CURSOR) XFillRectangle (dpy, window, gc, WINDOW_TEXT_TO_FRAME_PIXEL_X (w, w->phys_cursor.x), WINDOW_TO_FRAME_PIXEL_Y (w, w->phys_cursor.y), width, row->height); else XFillRectangle (dpy, window, gc, WINDOW_TEXT_TO_FRAME_PIXEL_X (w, w->phys_cursor.x), WINDOW_TO_FRAME_PIXEL_Y (w, w->phys_cursor.y + row->height - width), cursor_glyph->pixel_width, width); XSetClipMask (dpy, gc, None); } } /* RIF: Define cursor CURSOR on frame F. */ static void x_define_frame_cursor (f, cursor) struct frame *f; Cursor cursor; { XDefineCursor (FRAME_X_DISPLAY (f), FRAME_X_WINDOW (f), cursor); } /* RIF: Clear area on frame F. */ static void x_clear_frame_area (f, x, y, width, height) struct frame *f; int x, y, width, height; { x_clear_area (FRAME_X_DISPLAY (f), FRAME_X_WINDOW (f), x, y, width, height, False); } /* RIF: Draw cursor on window W. */ static void x_draw_window_cursor (w, glyph_row, x, y, cursor_type, cursor_width, on_p, active_p) struct window *w; struct glyph_row *glyph_row; int x, y; int cursor_type, cursor_width; int on_p, active_p; { struct frame *f = XFRAME (WINDOW_FRAME (w)); if (on_p) { w->phys_cursor_type = cursor_type; w->phys_cursor_on_p = 1; if (glyph_row->exact_window_width_line_p && w->phys_cursor.hpos >= glyph_row->used[TEXT_AREA]) { glyph_row->cursor_in_fringe_p = 1; draw_fringe_bitmap (w, glyph_row, 0); } else switch (cursor_type) { case HOLLOW_BOX_CURSOR: x_draw_hollow_cursor (w, glyph_row); break; case FILLED_BOX_CURSOR: draw_phys_cursor_glyph (w, glyph_row, DRAW_CURSOR); break; case BAR_CURSOR: x_draw_bar_cursor (w, glyph_row, cursor_width, BAR_CURSOR); break; case HBAR_CURSOR: x_draw_bar_cursor (w, glyph_row, cursor_width, HBAR_CURSOR); break; case NO_CURSOR: w->phys_cursor_width = 0; break; default: abort (); } #ifdef HAVE_X_I18N if (w == XWINDOW (f->selected_window)) if (FRAME_XIC (f) && (FRAME_XIC_STYLE (f) & XIMPreeditPosition)) xic_set_preeditarea (w, x, y); #endif } #ifndef XFlush if (updating_frame != f) XFlush (FRAME_X_DISPLAY (f)); #endif } /* Icons. */ /* Make the x-window of frame F use the gnu icon bitmap. */ int x_bitmap_icon (f, file) struct frame *f; Lisp_Object file; { int bitmap_id; if (FRAME_X_WINDOW (f) == 0) return 1; /* Free up our existing icon bitmap and mask if any. */ if (f->output_data.x->icon_bitmap > 0) x_destroy_bitmap (f, f->output_data.x->icon_bitmap); f->output_data.x->icon_bitmap = 0; if (STRINGP (file)) { #ifdef USE_GTK /* Use gtk_window_set_icon_from_file () if available, It's not restricted to bitmaps */ if (xg_set_icon (f, file)) return 0; #endif /* USE_GTK */ bitmap_id = x_create_bitmap_from_file (f, file); x_create_bitmap_mask (f, bitmap_id); } else { /* Create the GNU bitmap and mask if necessary. */ if (FRAME_X_DISPLAY_INFO (f)->icon_bitmap_id < 0) { FRAME_X_DISPLAY_INFO (f)->icon_bitmap_id = x_create_bitmap_from_data (f, gnu_bits, gnu_width, gnu_height); x_create_bitmap_mask (f, FRAME_X_DISPLAY_INFO (f)->icon_bitmap_id); } /* The first time we create the GNU bitmap and mask, this increments the ref-count one extra time. As a result, the GNU bitmap and mask are never freed. That way, we don't have to worry about allocating it again. */ x_reference_bitmap (f, FRAME_X_DISPLAY_INFO (f)->icon_bitmap_id); bitmap_id = FRAME_X_DISPLAY_INFO (f)->icon_bitmap_id; } x_wm_set_icon_pixmap (f, bitmap_id); f->output_data.x->icon_bitmap = bitmap_id; return 0; } /* Make the x-window of frame F use a rectangle with text. Use ICON_NAME as the text. */ int x_text_icon (f, icon_name) struct frame *f; char *icon_name; { if (FRAME_X_WINDOW (f) == 0) return 1; #ifdef HAVE_X11R4 { XTextProperty text; text.value = (unsigned char *) icon_name; text.encoding = XA_STRING; text.format = 8; text.nitems = strlen (icon_name); XSetWMIconName (FRAME_X_DISPLAY (f), FRAME_OUTER_WINDOW (f), &text); } #else /* not HAVE_X11R4 */ XSetIconName (FRAME_X_DISPLAY (f), FRAME_OUTER_WINDOW (f), icon_name); #endif /* not HAVE_X11R4 */ if (f->output_data.x->icon_bitmap > 0) x_destroy_bitmap (f, f->output_data.x->icon_bitmap); f->output_data.x->icon_bitmap = 0; x_wm_set_icon_pixmap (f, 0); return 0; } #define X_ERROR_MESSAGE_SIZE 200 /* If non-nil, this should be a string. It means catch X errors and store the error message in this string. */ static Lisp_Object x_error_message_string; /* An X error handler which stores the error message in x_error_message_string. This is called from x_error_handler if x_catch_errors is in effect. */ static void x_error_catcher (display, error) Display *display; XErrorEvent *error; { XGetErrorText (display, error->error_code, SDATA (x_error_message_string), X_ERROR_MESSAGE_SIZE); } /* Begin trapping X errors for display DPY. Actually we trap X errors for all displays, but DPY should be the display you are actually operating on. After calling this function, X protocol errors no longer cause Emacs to exit; instead, they are recorded in the string stored in x_error_message_string. Calling x_check_errors signals an Emacs error if an X error has occurred since the last call to x_catch_errors or x_check_errors. Calling x_uncatch_errors resumes the normal error handling. */ void x_check_errors (); static Lisp_Object x_catch_errors_unwind (); int x_catch_errors (dpy) Display *dpy; { int count = SPECPDL_INDEX (); /* Make sure any errors from previous requests have been dealt with. */ XSync (dpy, False); record_unwind_protect (x_catch_errors_unwind, Fcons (make_save_value (dpy, 0), x_error_message_string)); x_error_message_string = make_uninit_string (X_ERROR_MESSAGE_SIZE); SSET (x_error_message_string, 0, 0); return count; } /* Unbind the binding that we made to check for X errors. */ static Lisp_Object x_catch_errors_unwind (old_val) Lisp_Object old_val; { Lisp_Object first = XCAR (old_val); Display *dpy = XSAVE_VALUE (first)->pointer; /* The display may have been closed before this function is called. Check if it is still open before calling XSync. */ if (x_display_info_for_display (dpy) != 0) { BLOCK_INPUT; XSync (dpy, False); UNBLOCK_INPUT; } x_error_message_string = XCDR (old_val); return Qnil; } /* If any X protocol errors have arrived since the last call to x_catch_errors or x_check_errors, signal an Emacs error using sprintf (a buffer, FORMAT, the x error message text) as the text. */ void x_check_errors (dpy, format) Display *dpy; char *format; { /* Make sure to catch any errors incurred so far. */ XSync (dpy, False); if (SREF (x_error_message_string, 0)) error (format, SDATA (x_error_message_string)); } /* Nonzero if we had any X protocol errors since we did x_catch_errors on DPY. */ int x_had_errors_p (dpy) Display *dpy; { /* Make sure to catch any errors incurred so far. */ XSync (dpy, False); return SREF (x_error_message_string, 0) != 0; } /* Forget about any errors we have had, since we did x_catch_errors on DPY. */ void x_clear_errors (dpy) Display *dpy; { SSET (x_error_message_string, 0, 0); } /* Stop catching X protocol errors and let them make Emacs die. DPY should be the display that was passed to x_catch_errors. COUNT should be the value that was returned by the corresponding call to x_catch_errors. */ void x_uncatch_errors (dpy, count) Display *dpy; int count; { unbind_to (count, Qnil); } #if 0 static unsigned int x_wire_count; x_trace_wire () { fprintf (stderr, "Lib call: %d\n", ++x_wire_count); } #endif /* ! 0 */ /* Handle SIGPIPE, which can happen when the connection to a server simply goes away. SIGPIPE is handled by x_connection_signal. Don't need to do anything, because the write which caused the SIGPIPE will fail, causing Xlib to invoke the X IO error handler, which will do the appropriate cleanup for us. */ static SIGTYPE x_connection_signal (signalnum) /* If we don't have an argument, */ int signalnum; /* some compilers complain in signal calls. */ { #ifdef USG /* USG systems forget handlers when they are used; must reestablish each time */ signal (signalnum, x_connection_signal); #endif /* USG */ } /************************************************************************ Handling X errors ************************************************************************/ /* Error message passed to x_connection_closed. */ static char *error_msg; /* Function installed as fatal_error_signal_hook in x_connection_closed. Print the X error message, and exit normally, instead of dumping core when XtCloseDisplay fails. */ static void x_fatal_error_signal () { fprintf (stderr, "%s\n", error_msg); exit (70); } /* Handle the loss of connection to display DPY. ERROR_MESSAGE is the text of an error message that lead to the connection loss. */ static SIGTYPE x_connection_closed (dpy, error_message) Display *dpy; char *error_message; { struct x_display_info *dpyinfo = x_display_info_for_display (dpy); Lisp_Object frame, tail; int count; error_msg = (char *) alloca (strlen (error_message) + 1); strcpy (error_msg, error_message); handling_signal = 0; /* Prevent being called recursively because of an error condition below. Otherwise, we might end up with printing ``can't find per display information'' in the recursive call instead of printing the original message here. */ count = x_catch_errors (dpy); /* We have to close the display to inform Xt that it doesn't exist anymore. If we don't, Xt will continue to wait for events from the display. As a consequence, a sequence of M-x make-frame-on-display RET :1 RET ...kill the new frame, so that we get an IO error... M-x make-frame-on-display RET :1 RET will indefinitely wait in Xt for events for display `:1', opened in the first class to make-frame-on-display. Closing the display is reported to lead to a bus error on OpenWindows in certain situations. I suspect that is a bug in OpenWindows. I don't know how to cicumvent it here. */ #ifdef USE_X_TOOLKIT /* If DPYINFO is null, this means we didn't open the display in the first place, so don't try to close it. */ if (dpyinfo) { extern void (*fatal_error_signal_hook) P_ ((void)); fatal_error_signal_hook = x_fatal_error_signal; XtCloseDisplay (dpy); fatal_error_signal_hook = NULL; } #endif #ifdef USE_GTK if (dpyinfo) xg_display_close (dpyinfo->display); #endif /* Indicate that this display is dead. */ if (dpyinfo) dpyinfo->display = 0; /* First delete frames whose mini-buffers are on frames that are on the dead display. */ FOR_EACH_FRAME (tail, frame) { Lisp_Object minibuf_frame; minibuf_frame = WINDOW_FRAME (XWINDOW (FRAME_MINIBUF_WINDOW (XFRAME (frame)))); if (FRAME_X_P (XFRAME (frame)) && FRAME_X_P (XFRAME (minibuf_frame)) && ! EQ (frame, minibuf_frame) && FRAME_X_DISPLAY_INFO (XFRAME (minibuf_frame)) == dpyinfo) Fdelete_frame (frame, Qt); } /* Now delete all remaining frames on the dead display. We are now sure none of these is used as the mini-buffer for another frame that we need to delete. */ FOR_EACH_FRAME (tail, frame) if (FRAME_X_P (XFRAME (frame)) && FRAME_X_DISPLAY_INFO (XFRAME (frame)) == dpyinfo) { /* Set this to t so that Fdelete_frame won't get confused trying to find a replacement. */ FRAME_KBOARD (XFRAME (frame))->Vdefault_minibuffer_frame = Qt; Fdelete_frame (frame, Qt); } if (dpyinfo) x_delete_display (dpyinfo); x_uncatch_errors (dpy, count); if (x_display_list == 0) { fprintf (stderr, "%s\n", error_msg); shut_down_emacs (0, 0, Qnil); exit (70); } /* Ordinary stack unwind doesn't deal with these. */ #ifdef SIGIO sigunblock (sigmask (SIGIO)); #endif sigunblock (sigmask (SIGALRM)); TOTALLY_UNBLOCK_INPUT; clear_waiting_for_input (); error ("%s", error_msg); } /* We specifically use it before defining it, so that gcc doesn't inline it, otherwise gdb doesn't know how to properly put a breakpoint on it. */ static void x_error_quitter (Display *display, XErrorEvent *error); /* This is the first-level handler for X protocol errors. It calls x_error_quitter or x_error_catcher. */ static int x_error_handler (display, error) Display *display; XErrorEvent *error; { if (! NILP (x_error_message_string)) x_error_catcher (display, error); else x_error_quitter (display, error); return 0; } /* This is the usual handler for X protocol errors. It kills all frames on the display that we got the error for. If that was the only one, it prints an error message and kills Emacs. */ /* .gdbinit puts a breakpoint here, so make sure it is not inlined. */ #if __GNUC__ >= 3 /* On GCC 3.0 we might get a warning. */ #define NO_INLINE __attribute__((noinline)) #else #define NO_INLINE #endif /* Some versions of GNU/Linux define noinline in their headers. */ #ifdef noinline #undef noinline #endif /* On older GCC versions, just putting x_error_quitter after x_error_handler prevents inlining into the former. */ static void NO_INLINE x_error_quitter (display, error) Display *display; XErrorEvent *error; { char buf[256], buf1[356]; /* Note that there is no real way portable across R3/R4 to get the original error handler. */ XGetErrorText (display, error->error_code, buf, sizeof (buf)); sprintf (buf1, "X protocol error: %s on protocol request %d", buf, error->request_code); x_connection_closed (display, buf1); } /* This is the handler for X IO errors, always. It kills all frames on the display that we lost touch with. If that was the only one, it prints an error message and kills Emacs. */ static int x_io_error_quitter (display) Display *display; { char buf[256]; sprintf (buf, "Connection lost to X server `%s'", DisplayString (display)); x_connection_closed (display, buf); return 0; } /* Changing the font of the frame. */ /* Give frame F the font named FONTNAME as its default font, and return the full name of that font. FONTNAME may be a wildcard pattern; in that case, we choose some font that fits the pattern. The return value shows which font we chose. */ Lisp_Object x_new_font (f, fontname) struct frame *f; register char *fontname; { struct font_info *fontp = FS_LOAD_FONT (f, 0, fontname, -1); if (!fontp) return Qnil; FRAME_FONT (f) = (XFontStruct *) (fontp->font); FRAME_BASELINE_OFFSET (f) = fontp->baseline_offset; FRAME_FONTSET (f) = -1; FRAME_COLUMN_WIDTH (f) = fontp->average_width; FRAME_SPACE_WIDTH (f) = fontp->space_width; FRAME_LINE_HEIGHT (f) = FONT_HEIGHT (FRAME_FONT (f)); compute_fringe_widths (f, 1); /* Compute the scroll bar width in character columns. */ if (FRAME_CONFIG_SCROLL_BAR_WIDTH (f) > 0) { int wid = FRAME_COLUMN_WIDTH (f); FRAME_CONFIG_SCROLL_BAR_COLS (f) = (FRAME_CONFIG_SCROLL_BAR_WIDTH (f) + wid-1) / wid; } else { int wid = FRAME_COLUMN_WIDTH (f); FRAME_CONFIG_SCROLL_BAR_COLS (f) = (14 + wid - 1) / wid; } /* Now make the frame display the given font. */ if (FRAME_X_WINDOW (f) != 0) { XSetFont (FRAME_X_DISPLAY (f), f->output_data.x->normal_gc, FRAME_FONT (f)->fid); XSetFont (FRAME_X_DISPLAY (f), f->output_data.x->reverse_gc, FRAME_FONT (f)->fid); XSetFont (FRAME_X_DISPLAY (f), f->output_data.x->cursor_gc, FRAME_FONT (f)->fid); /* Don't change the size of a tip frame; there's no point in doing it because it's done in Fx_show_tip, and it leads to problems because the tip frame has no widget. */ if (NILP (tip_frame) || XFRAME (tip_frame) != f) x_set_window_size (f, 0, FRAME_COLS (f), FRAME_LINES (f)); } return build_string (fontp->full_name); } /* Give frame F the fontset named FONTSETNAME as its default font, and return the full name of that fontset. FONTSETNAME may be a wildcard pattern; in that case, we choose some fontset that fits the pattern. The return value shows which fontset we chose. */ Lisp_Object x_new_fontset (f, fontsetname) struct frame *f; char *fontsetname; { int fontset = fs_query_fontset (build_string (fontsetname), 0); Lisp_Object result; if (fontset < 0) return Qnil; if (FRAME_FONTSET (f) == fontset) /* This fontset is already set in frame F. There's nothing more to do. */ return fontset_name (fontset); result = x_new_font (f, (SDATA (fontset_ascii (fontset)))); if (!STRINGP (result)) /* Can't load ASCII font. */ return Qnil; /* Since x_new_font doesn't update any fontset information, do it now. */ FRAME_FONTSET (f) = fontset; #ifdef HAVE_X_I18N if (FRAME_XIC (f) && (FRAME_XIC_STYLE (f) & (XIMPreeditPosition | XIMStatusArea))) xic_set_xfontset (f, SDATA (fontset_ascii (fontset))); #endif return build_string (fontsetname); } /*********************************************************************** X Input Methods ***********************************************************************/ #ifdef HAVE_X_I18N #ifdef HAVE_X11R6 /* XIM destroy callback function, which is called whenever the connection to input method XIM dies. CLIENT_DATA contains a pointer to the x_display_info structure corresponding to XIM. */ static void xim_destroy_callback (xim, client_data, call_data) XIM xim; XPointer client_data; XPointer call_data; { struct x_display_info *dpyinfo = (struct x_display_info *) client_data; Lisp_Object frame, tail; BLOCK_INPUT; /* No need to call XDestroyIC.. */ FOR_EACH_FRAME (tail, frame) { struct frame *f = XFRAME (frame); if (FRAME_X_DISPLAY_INFO (f) == dpyinfo) { FRAME_XIC (f) = NULL; xic_free_xfontset (f); } } /* No need to call XCloseIM. */ dpyinfo->xim = NULL; XFree (dpyinfo->xim_styles); UNBLOCK_INPUT; } #endif /* HAVE_X11R6 */ #ifdef HAVE_X11R6 /* This isn't prototyped in OSF 5.0 or 5.1a. */ extern char *XSetIMValues P_ ((XIM, ...)); #endif /* Open the connection to the XIM server on display DPYINFO. RESOURCE_NAME is the resource name Emacs uses. */ static void xim_open_dpy (dpyinfo, resource_name) struct x_display_info *dpyinfo; char *resource_name; { XIM xim; #ifdef HAVE_XIM if (use_xim) { xim = XOpenIM (dpyinfo->display, dpyinfo->xrdb, resource_name, EMACS_CLASS); dpyinfo->xim = xim; if (xim) { #ifdef HAVE_X11R6 XIMCallback destroy; #endif /* Get supported styles and XIM values. */ XGetIMValues (xim, XNQueryInputStyle, &dpyinfo->xim_styles, NULL); #ifdef HAVE_X11R6 destroy.callback = xim_destroy_callback; destroy.client_data = (XPointer)dpyinfo; XSetIMValues (xim, XNDestroyCallback, &destroy, NULL); #endif } } else #endif /* HAVE_XIM */ dpyinfo->xim = NULL; } #ifdef HAVE_X11R6_XIM struct xim_inst_t { struct x_display_info *dpyinfo; char *resource_name; }; /* XIM instantiate callback function, which is called whenever an XIM server is available. DISPLAY is the display of the XIM. CLIENT_DATA contains a pointer to an xim_inst_t structure created when the callback was registered. */ static void xim_instantiate_callback (display, client_data, call_data) Display *display; XPointer client_data; XPointer call_data; { struct xim_inst_t *xim_inst = (struct xim_inst_t *) client_data; struct x_display_info *dpyinfo = xim_inst->dpyinfo; /* We don't support multiple XIM connections. */ if (dpyinfo->xim) return; xim_open_dpy (dpyinfo, xim_inst->resource_name); /* Create XIC for the existing frames on the same display, as long as they have no XIC. */ if (dpyinfo->xim && dpyinfo->reference_count > 0) { Lisp_Object tail, frame; BLOCK_INPUT; FOR_EACH_FRAME (tail, frame) { struct frame *f = XFRAME (frame); if (FRAME_X_DISPLAY_INFO (f) == xim_inst->dpyinfo) if (FRAME_XIC (f) == NULL) { create_frame_xic (f); if (FRAME_XIC_STYLE (f) & XIMStatusArea) xic_set_statusarea (f); if (FRAME_XIC_STYLE (f) & XIMPreeditPosition) { struct window *w = XWINDOW (f->selected_window); xic_set_preeditarea (w, w->cursor.x, w->cursor.y); } } } UNBLOCK_INPUT; } } #endif /* HAVE_X11R6_XIM */ /* Open a connection to the XIM server on display DPYINFO. RESOURCE_NAME is the resource name for Emacs. On X11R5, open the connection only at the first time. On X11R6, open the connection in the XIM instantiate callback function. */ static void xim_initialize (dpyinfo, resource_name) struct x_display_info *dpyinfo; char *resource_name; { #ifdef HAVE_XIM if (use_xim) { #ifdef HAVE_X11R6_XIM struct xim_inst_t *xim_inst; int len; dpyinfo->xim = NULL; xim_inst = (struct xim_inst_t *) xmalloc (sizeof (struct xim_inst_t)); xim_inst->dpyinfo = dpyinfo; len = strlen (resource_name); xim_inst->resource_name = (char *) xmalloc (len + 1); bcopy (resource_name, xim_inst->resource_name, len + 1); XRegisterIMInstantiateCallback (dpyinfo->display, dpyinfo->xrdb, resource_name, EMACS_CLASS, xim_instantiate_callback, /* This is XPointer in XFree86 but (XPointer *) on Tru64, at least, hence the configure test. */ (XRegisterIMInstantiateCallback_arg6) xim_inst); #else /* not HAVE_X11R6_XIM */ dpyinfo->xim = NULL; xim_open_dpy (dpyinfo, resource_name); #endif /* not HAVE_X11R6_XIM */ } else #endif /* HAVE_XIM */ dpyinfo->xim = NULL; } /* Close the connection to the XIM server on display DPYINFO. */ static void xim_close_dpy (dpyinfo) struct x_display_info *dpyinfo; { #ifdef HAVE_XIM if (use_xim) { #ifdef HAVE_X11R6_XIM if (dpyinfo->display) XUnregisterIMInstantiateCallback (dpyinfo->display, dpyinfo->xrdb, NULL, EMACS_CLASS, xim_instantiate_callback, NULL); #endif /* not HAVE_X11R6_XIM */ if (dpyinfo->display) XCloseIM (dpyinfo->xim); dpyinfo->xim = NULL; XFree (dpyinfo->xim_styles); } #endif /* HAVE_XIM */ } #endif /* not HAVE_X11R6_XIM */ /* Calculate the absolute position in frame F from its current recorded position values and gravity. */ void x_calc_absolute_position (f) struct frame *f; { int win_x = 0, win_y = 0; int flags = f->size_hint_flags; /* We have nothing to do if the current position is already for the top-left corner. */ if (! ((flags & XNegative) || (flags & YNegative))) return; /* Treat negative positions as relative to the leftmost bottommost position that fits on the screen. */ if (flags & XNegative) f->left_pos = (FRAME_X_DISPLAY_INFO (f)->width - FRAME_PIXEL_WIDTH (f) + f->left_pos); { int height = FRAME_PIXEL_HEIGHT (f); #if defined USE_X_TOOLKIT && defined USE_MOTIF /* Something is fishy here. When using Motif, starting Emacs with `-g -0-0', the frame appears too low by a few pixels. This seems to be so because initially, while Emacs is starting, the column widget's height and the frame's pixel height are different. The column widget's height is the right one. In later invocations, when Emacs is up, the frame's pixel height is right, though. It's not obvious where the initial small difference comes from. 2000-12-01, gerd. */ XtVaGetValues (f->output_data.x->column_widget, XtNheight, &height, NULL); #endif if (flags & YNegative) f->top_pos = (FRAME_X_DISPLAY_INFO (f)->height - height + f->top_pos); } /* The left_pos and top_pos are now relative to the top and left screen edges, so the flags should correspond. */ f->size_hint_flags &= ~ (XNegative | YNegative); } /* CHANGE_GRAVITY is 1 when calling from Fset_frame_position, to really change the position, and 0 when calling from x_make_frame_visible (in that case, XOFF and YOFF are the current position values). It is -1 when calling from x_set_frame_parameters, which means, do adjust for borders but don't change the gravity. */ void x_set_offset (f, xoff, yoff, change_gravity) struct frame *f; register int xoff, yoff; int change_gravity; { int modified_top, modified_left; if (change_gravity > 0) { f->top_pos = yoff; f->left_pos = xoff; f->size_hint_flags &= ~ (XNegative | YNegative); if (xoff < 0) f->size_hint_flags |= XNegative; if (yoff < 0) f->size_hint_flags |= YNegative; f->win_gravity = NorthWestGravity; } x_calc_absolute_position (f); BLOCK_INPUT; x_wm_set_size_hint (f, (long) 0, 0); modified_left = f->left_pos; modified_top = f->top_pos; if (FRAME_X_DISPLAY_INFO (f)->wm_type == X_WMTYPE_A) { /* Some WMs (twm, wmaker at least) has an offset that is smaller than the WM decorations. So we use the calculated offset instead of the WM decoration sizes here (x/y_pixels_outer_diff). */ modified_left += FRAME_X_OUTPUT (f)->move_offset_left; modified_top += FRAME_X_OUTPUT (f)->move_offset_top; } XMoveWindow (FRAME_X_DISPLAY (f), FRAME_OUTER_WINDOW (f), modified_left, modified_top); if (FRAME_VISIBLE_P (f) && FRAME_X_DISPLAY_INFO (f)->wm_type == X_WMTYPE_UNKNOWN) { FRAME_X_OUTPUT (f)->check_expected_move = 1; FRAME_X_OUTPUT (f)->expected_top = f->top_pos; FRAME_X_OUTPUT (f)->expected_left = f->left_pos; } UNBLOCK_INPUT; } /* Check if we need to resize the frame due to a fullscreen request. If so needed, resize the frame. */ static void x_check_fullscreen (f) struct frame *f; { if (f->want_fullscreen & FULLSCREEN_BOTH) { int width, height, ign; x_real_positions (f, &f->left_pos, &f->top_pos); x_fullscreen_adjust (f, &width, &height, &ign, &ign); /* We do not need to move the window, it shall be taken care of when setting WM manager hints. If the frame is visible already, the position is checked by x_check_expected_move. */ if (FRAME_COLS (f) != width || FRAME_LINES (f) != height) { change_frame_size (f, height, width, 0, 1, 0); SET_FRAME_GARBAGED (f); cancel_mouse_face (f); /* Wait for the change of frame size to occur */ f->want_fullscreen |= FULLSCREEN_WAIT; } } } /* If frame parameters are set after the frame is mapped, we need to move the window. Some window managers moves the window to the right position, some moves the outer window manager window to the specified position. Here we check that we are in the right spot. If not, make a second move, assuming we are dealing with the second kind of window manager. */ static void x_check_expected_move (f) struct frame *f; { if (FRAME_X_OUTPUT (f)->check_expected_move) { int expect_top = FRAME_X_OUTPUT (f)->expected_top; int expect_left = FRAME_X_OUTPUT (f)->expected_left; if (expect_top != f->top_pos || expect_left != f->left_pos) { FRAME_X_DISPLAY_INFO (f)->wm_type = X_WMTYPE_A; FRAME_X_OUTPUT (f)->move_offset_left = expect_left - f->left_pos; FRAME_X_OUTPUT (f)->move_offset_top = expect_top - f->top_pos; f->left_pos = expect_left; f->top_pos = expect_top; x_set_offset (f, expect_left, expect_top, 0); } else if (FRAME_X_DISPLAY_INFO (f)->wm_type == X_WMTYPE_UNKNOWN) FRAME_X_DISPLAY_INFO (f)->wm_type = X_WMTYPE_B; /* Just do this once */ FRAME_X_OUTPUT (f)->check_expected_move = 0; } } /* Change the size of frame F's X window to COLS/ROWS in the case F doesn't have a widget. If CHANGE_GRAVITY is 1, we change to top-left-corner window gravity for this size change and subsequent size changes. Otherwise we leave the window gravity unchanged. */ static void x_set_window_size_1 (f, change_gravity, cols, rows) struct frame *f; int change_gravity; int cols, rows; { int pixelwidth, pixelheight; check_frame_size (f, &rows, &cols); f->scroll_bar_actual_width = (!FRAME_HAS_VERTICAL_SCROLL_BARS (f) ? 0 : FRAME_CONFIG_SCROLL_BAR_WIDTH (f) > 0 ? FRAME_CONFIG_SCROLL_BAR_WIDTH (f) : (FRAME_CONFIG_SCROLL_BAR_COLS (f) * FRAME_COLUMN_WIDTH (f))); compute_fringe_widths (f, 0); pixelwidth = FRAME_TEXT_COLS_TO_PIXEL_WIDTH (f, cols); pixelheight = FRAME_TEXT_LINES_TO_PIXEL_HEIGHT (f, rows); f->win_gravity = NorthWestGravity; x_wm_set_size_hint (f, (long) 0, 0); XSync (FRAME_X_DISPLAY (f), False); XResizeWindow (FRAME_X_DISPLAY (f), FRAME_X_WINDOW (f), pixelwidth, pixelheight); /* Now, strictly speaking, we can't be sure that this is accurate, but the window manager will get around to dealing with the size change request eventually, and we'll hear how it went when the ConfigureNotify event gets here. We could just not bother storing any of this information here, and let the ConfigureNotify event set everything up, but that might be kind of confusing to the Lisp code, since size changes wouldn't be reported in the frame parameters until some random point in the future when the ConfigureNotify event arrives. We pass 1 for DELAY since we can't run Lisp code inside of a BLOCK_INPUT. */ change_frame_size (f, rows, cols, 0, 1, 0); FRAME_PIXEL_WIDTH (f) = pixelwidth; FRAME_PIXEL_HEIGHT (f) = pixelheight; /* We've set {FRAME,PIXEL}_{WIDTH,HEIGHT} to the values we hope to receive in the ConfigureNotify event; if we get what we asked for, then the event won't cause the screen to become garbaged, so we have to make sure to do it here. */ SET_FRAME_GARBAGED (f); XFlush (FRAME_X_DISPLAY (f)); } /* Call this to change the size of frame F's x-window. If CHANGE_GRAVITY is 1, we change to top-left-corner window gravity for this size change and subsequent size changes. Otherwise we leave the window gravity unchanged. */ void x_set_window_size (f, change_gravity, cols, rows) struct frame *f; int change_gravity; int cols, rows; { BLOCK_INPUT; #ifdef USE_GTK if (FRAME_GTK_WIDGET (f)) xg_frame_set_char_size (f, cols, rows); else x_set_window_size_1 (f, change_gravity, cols, rows); #elif USE_X_TOOLKIT if (f->output_data.x->widget != NULL) { /* The x and y position of the widget is clobbered by the call to XtSetValues within EmacsFrameSetCharSize. This is a real kludge, but I don't understand Xt so I can't figure out a correct fix. Can anyone else tell me? -- rms. */ int xpos = f->output_data.x->widget->core.x; int ypos = f->output_data.x->widget->core.y; EmacsFrameSetCharSize (f->output_data.x->edit_widget, cols, rows); f->output_data.x->widget->core.x = xpos; f->output_data.x->widget->core.y = ypos; } else x_set_window_size_1 (f, change_gravity, cols, rows); #else /* not USE_X_TOOLKIT */ x_set_window_size_1 (f, change_gravity, cols, rows); #endif /* not USE_X_TOOLKIT */ /* If cursor was outside the new size, mark it as off. */ mark_window_cursors_off (XWINDOW (f->root_window)); /* Clear out any recollection of where the mouse highlighting was, since it might be in a place that's outside the new frame size. Actually checking whether it is outside is a pain in the neck, so don't try--just let the highlighting be done afresh with new size. */ cancel_mouse_face (f); UNBLOCK_INPUT; } /* Mouse warping. */ void x_set_mouse_position (f, x, y) struct frame *f; int x, y; { int pix_x, pix_y; pix_x = FRAME_COL_TO_PIXEL_X (f, x) + FRAME_COLUMN_WIDTH (f) / 2; pix_y = FRAME_LINE_TO_PIXEL_Y (f, y) + FRAME_LINE_HEIGHT (f) / 2; if (pix_x < 0) pix_x = 0; if (pix_x > FRAME_PIXEL_WIDTH (f)) pix_x = FRAME_PIXEL_WIDTH (f); if (pix_y < 0) pix_y = 0; if (pix_y > FRAME_PIXEL_HEIGHT (f)) pix_y = FRAME_PIXEL_HEIGHT (f); BLOCK_INPUT; XWarpPointer (FRAME_X_DISPLAY (f), None, FRAME_X_WINDOW (f), 0, 0, 0, 0, pix_x, pix_y); UNBLOCK_INPUT; } /* Move the mouse to position pixel PIX_X, PIX_Y relative to frame F. */ void x_set_mouse_pixel_position (f, pix_x, pix_y) struct frame *f; int pix_x, pix_y; { BLOCK_INPUT; XWarpPointer (FRAME_X_DISPLAY (f), None, FRAME_X_WINDOW (f), 0, 0, 0, 0, pix_x, pix_y); UNBLOCK_INPUT; } /* focus shifting, raising and lowering. */ void x_focus_on_frame (f) struct frame *f; { #if 0 /* This proves to be unpleasant. */ x_raise_frame (f); #endif #if 0 /* I don't think that the ICCCM allows programs to do things like this without the interaction of the window manager. Whatever you end up doing with this code, do it to x_unfocus_frame too. */ XSetInputFocus (FRAME_X_DISPLAY (f), FRAME_X_WINDOW (f), RevertToPointerRoot, CurrentTime); #endif /* ! 0 */ } void x_unfocus_frame (f) struct frame *f; { #if 0 /* Look at the remarks in x_focus_on_frame. */ if (FRAME_X_DISPLAY_INFO (f)->x_focus_frame == f) XSetInputFocus (FRAME_X_DISPLAY (f), PointerRoot, RevertToPointerRoot, CurrentTime); #endif /* ! 0 */ } /* Raise frame F. */ void x_raise_frame (f) struct frame *f; { if (f->async_visible) { BLOCK_INPUT; XRaiseWindow (FRAME_X_DISPLAY (f), FRAME_OUTER_WINDOW (f)); XFlush (FRAME_X_DISPLAY (f)); UNBLOCK_INPUT; } } /* Lower frame F. */ void x_lower_frame (f) struct frame *f; { if (f->async_visible) { BLOCK_INPUT; XLowerWindow (FRAME_X_DISPLAY (f), FRAME_OUTER_WINDOW (f)); XFlush (FRAME_X_DISPLAY (f)); UNBLOCK_INPUT; } } static void XTframe_raise_lower (f, raise_flag) FRAME_PTR f; int raise_flag; { if (raise_flag) x_raise_frame (f); else x_lower_frame (f); } /* Change of visibility. */ /* This tries to wait until the frame is really visible. However, if the window manager asks the user where to position the frame, this will return before the user finishes doing that. The frame will not actually be visible at that time, but it will become visible later when the window manager finishes with it. */ void x_make_frame_visible (f) struct frame *f; { Lisp_Object type; int original_top, original_left; int retry_count = 2; retry: BLOCK_INPUT; type = x_icon_type (f); if (!NILP (type)) x_bitmap_icon (f, type); if (! FRAME_VISIBLE_P (f)) { /* We test FRAME_GARBAGED_P here to make sure we don't call x_set_offset a second time if we get to x_make_frame_visible a second time before the window gets really visible. */ if (! FRAME_ICONIFIED_P (f) && ! f->output_data.x->asked_for_visible) x_set_offset (f, f->left_pos, f->top_pos, 0); f->output_data.x->asked_for_visible = 1; if (! EQ (Vx_no_window_manager, Qt)) x_wm_set_window_state (f, NormalState); #ifdef USE_X_TOOLKIT /* This was XtPopup, but that did nothing for an iconified frame. */ XtMapWidget (f->output_data.x->widget); #else /* not USE_X_TOOLKIT */ #ifdef USE_GTK gtk_widget_show_all (FRAME_GTK_OUTER_WIDGET (f)); gtk_window_deiconify (GTK_WINDOW (FRAME_GTK_OUTER_WIDGET (f))); #else XMapRaised (FRAME_X_DISPLAY (f), FRAME_X_WINDOW (f)); #endif /* not USE_GTK */ #endif /* not USE_X_TOOLKIT */ #if 0 /* This seems to bring back scroll bars in the wrong places if the window configuration has changed. They seem to come back ok without this. */ if (FRAME_HAS_VERTICAL_SCROLL_BARS (f)) XMapSubwindows (FRAME_X_DISPLAY (f), FRAME_X_WINDOW (f)); #endif } XFlush (FRAME_X_DISPLAY (f)); /* Synchronize to ensure Emacs knows the frame is visible before we do anything else. We do this loop with input not blocked so that incoming events are handled. */ { Lisp_Object frame; int count; /* This must be before UNBLOCK_INPUT since events that arrive in response to the actions above will set it when they are handled. */ int previously_visible = f->output_data.x->has_been_visible; original_left = f->left_pos; original_top = f->top_pos; /* This must come after we set COUNT. */ UNBLOCK_INPUT; /* We unblock here so that arriving X events are processed. */ /* Now move the window back to where it was "supposed to be". But don't do it if the gravity is negative. When the gravity is negative, this uses a position that is 3 pixels too low. Perhaps that's really the border width. Don't do this if the window has never been visible before, because the window manager may choose the position and we don't want to override it. */ if (! FRAME_VISIBLE_P (f) && ! FRAME_ICONIFIED_P (f) && f->win_gravity == NorthWestGravity && previously_visible) { Drawable rootw; int x, y; unsigned int width, height, border, depth; BLOCK_INPUT; /* On some window managers (such as FVWM) moving an existing window, even to the same place, causes the window manager to introduce an offset. This can cause the window to move to an unexpected location. Check the geometry (a little slow here) and then verify that the window is in the right place. If the window is not in the right place, move it there, and take the potential window manager hit. */ XGetGeometry (FRAME_X_DISPLAY (f), FRAME_OUTER_WINDOW (f), &rootw, &x, &y, &width, &height, &border, &depth); if (original_left != x || original_top != y) XMoveWindow (FRAME_X_DISPLAY (f), FRAME_OUTER_WINDOW (f), original_left, original_top); UNBLOCK_INPUT; } XSETFRAME (frame, f); /* Wait until the frame is visible. Process X events until a MapNotify event has been seen, or until we think we won't get a MapNotify at all.. */ for (count = input_signal_count + 10; input_signal_count < count && !FRAME_VISIBLE_P (f);) { /* Force processing of queued events. */ x_sync (f); /* Machines that do polling rather than SIGIO have been observed to go into a busy-wait here. So we'll fake an alarm signal to let the handler know that there's something to be read. We used to raise a real alarm, but it seems that the handler isn't always enabled here. This is probably a bug. */ if (input_polling_used ()) { /* It could be confusing if a real alarm arrives while processing the fake one. Turn it off and let the handler reset it. */ extern void poll_for_input_1 P_ ((void)); int old_poll_suppress_count = poll_suppress_count; poll_suppress_count = 1; poll_for_input_1 (); poll_suppress_count = old_poll_suppress_count; } /* See if a MapNotify event has been processed. */ FRAME_SAMPLE_VISIBILITY (f); } /* 2000-09-28: In (let ((f (selected-frame))) (iconify-frame f) (raise-frame f)) the frame is not raised with various window managers on FreeBSD, GNU/Linux and Solaris. It turns out that, for some unknown reason, the call to XtMapWidget is completely ignored. Mapping the widget a second time works. */ if (!FRAME_VISIBLE_P (f) && --retry_count > 0) goto retry; } } /* Change from mapped state to withdrawn state. */ /* Make the frame visible (mapped and not iconified). */ void x_make_frame_invisible (f) struct frame *f; { Window window; /* Use the frame's outermost window, not the one we normally draw on. */ window = FRAME_OUTER_WINDOW (f); /* Don't keep the highlight on an invisible frame. */ if (FRAME_X_DISPLAY_INFO (f)->x_highlight_frame == f) FRAME_X_DISPLAY_INFO (f)->x_highlight_frame = 0; #if 0/* This might add unreliability; I don't trust it -- rms. */ if (! f->async_visible && ! f->async_iconified) return; #endif BLOCK_INPUT; /* Before unmapping the window, update the WM_SIZE_HINTS property to claim that the current position of the window is user-specified, rather than program-specified, so that when the window is mapped again, it will be placed at the same location, without forcing the user to position it by hand again (they have already done that once for this window.) */ x_wm_set_size_hint (f, (long) 0, 1); #ifdef USE_GTK if (FRAME_GTK_OUTER_WIDGET (f)) gtk_widget_hide (FRAME_GTK_OUTER_WIDGET (f)); else #endif { #ifdef HAVE_X11R4 if (! XWithdrawWindow (FRAME_X_DISPLAY (f), window, DefaultScreen (FRAME_X_DISPLAY (f)))) { UNBLOCK_INPUT_RESIGNAL; error ("Can't notify window manager of window withdrawal"); } #else /* ! defined (HAVE_X11R4) */ /* Tell the window manager what we're going to do. */ if (! EQ (Vx_no_window_manager, Qt)) { XEvent unmap; unmap.xunmap.type = UnmapNotify; unmap.xunmap.window = window; unmap.xunmap.event = DefaultRootWindow (FRAME_X_DISPLAY (f)); unmap.xunmap.from_configure = False; if (! XSendEvent (FRAME_X_DISPLAY (f), DefaultRootWindow (FRAME_X_DISPLAY (f)), False, SubstructureRedirectMaskSubstructureNotifyMask, &unmap)) { UNBLOCK_INPUT_RESIGNAL; error ("Can't notify window manager of withdrawal"); } } /* Unmap the window ourselves. Cheeky! */ XUnmapWindow (FRAME_X_DISPLAY (f), window); #endif /* ! defined (HAVE_X11R4) */ } /* We can't distinguish this from iconification just by the event that we get from the server. So we can't win using the usual strategy of letting FRAME_SAMPLE_VISIBILITY set this. So do it by hand, and synchronize with the server to make sure we agree. */ f->visible = 0; FRAME_ICONIFIED_P (f) = 0; f->async_visible = 0; f->async_iconified = 0; x_sync (f); UNBLOCK_INPUT; } /* Change window state from mapped to iconified. */ void x_iconify_frame (f) struct frame *f; { int result; Lisp_Object type; /* Don't keep the highlight on an invisible frame. */ if (FRAME_X_DISPLAY_INFO (f)->x_highlight_frame == f) FRAME_X_DISPLAY_INFO (f)->x_highlight_frame = 0; if (f->async_iconified) return; BLOCK_INPUT; FRAME_SAMPLE_VISIBILITY (f); type = x_icon_type (f); if (!NILP (type)) x_bitmap_icon (f, type); #ifdef USE_GTK if (FRAME_GTK_OUTER_WIDGET (f)) { if (! FRAME_VISIBLE_P (f)) gtk_widget_show_all (FRAME_GTK_OUTER_WIDGET (f)); gtk_window_iconify (GTK_WINDOW (FRAME_GTK_OUTER_WIDGET (f))); f->iconified = 1; f->visible = 1; f->async_iconified = 1; f->async_visible = 0; UNBLOCK_INPUT; return; } #endif #ifdef USE_X_TOOLKIT if (! FRAME_VISIBLE_P (f)) { if (! EQ (Vx_no_window_manager, Qt)) x_wm_set_window_state (f, IconicState); /* This was XtPopup, but that did nothing for an iconified frame. */ XtMapWidget (f->output_data.x->widget); /* The server won't give us any event to indicate that an invisible frame was changed to an icon, so we have to record it here. */ f->iconified = 1; f->visible = 1; f->async_iconified = 1; f->async_visible = 0; UNBLOCK_INPUT; return; } result = XIconifyWindow (FRAME_X_DISPLAY (f), XtWindow (f->output_data.x->widget), DefaultScreen (FRAME_X_DISPLAY (f))); UNBLOCK_INPUT; if (!result) error ("Can't notify window manager of iconification"); f->async_iconified = 1; f->async_visible = 0; BLOCK_INPUT; XFlush (FRAME_X_DISPLAY (f)); UNBLOCK_INPUT; #else /* not USE_X_TOOLKIT */ /* Make sure the X server knows where the window should be positioned, in case the user deiconifies with the window manager. */ if (! FRAME_VISIBLE_P (f) && !FRAME_ICONIFIED_P (f)) x_set_offset (f, f->left_pos, f->top_pos, 0); /* Since we don't know which revision of X we're running, we'll use both the X11R3 and X11R4 techniques. I don't know if this is a good idea. */ /* X11R4: send a ClientMessage to the window manager using the WM_CHANGE_STATE type. */ { XEvent message; message.xclient.window = FRAME_X_WINDOW (f); message.xclient.type = ClientMessage; message.xclient.message_type = FRAME_X_DISPLAY_INFO (f)->Xatom_wm_change_state; message.xclient.format = 32; message.xclient.data.l[0] = IconicState; if (! XSendEvent (FRAME_X_DISPLAY (f), DefaultRootWindow (FRAME_X_DISPLAY (f)), False, SubstructureRedirectMask | SubstructureNotifyMask, &message)) { UNBLOCK_INPUT_RESIGNAL; error ("Can't notify window manager of iconification"); } } /* X11R3: set the initial_state field of the window manager hints to IconicState. */ x_wm_set_window_state (f, IconicState); if (!FRAME_VISIBLE_P (f)) { /* If the frame was withdrawn, before, we must map it. */ XMapRaised (FRAME_X_DISPLAY (f), FRAME_X_WINDOW (f)); } f->async_iconified = 1; f->async_visible = 0; XFlush (FRAME_X_DISPLAY (f)); UNBLOCK_INPUT; #endif /* not USE_X_TOOLKIT */ } /* Free X resources of frame F. */ void x_free_frame_resources (f) struct frame *f; { struct x_display_info *dpyinfo = FRAME_X_DISPLAY_INFO (f); Lisp_Object bar; struct scroll_bar *b; BLOCK_INPUT; /* If a display connection is dead, don't try sending more commands to the X server. */ if (dpyinfo->display) { if (f->output_data.x->icon_desc) XDestroyWindow (FRAME_X_DISPLAY (f), f->output_data.x->icon_desc); #ifdef USE_X_TOOLKIT /* Explicitly destroy the scroll bars of the frame. Without this, we get "BadDrawable" errors from the toolkit later on, presumably from expose events generated for the disappearing toolkit scroll bars. */ for (bar = FRAME_SCROLL_BARS (f); !NILP (bar); bar = b->next) { b = XSCROLL_BAR (bar); x_scroll_bar_remove (b); } #endif #ifdef HAVE_X_I18N if (FRAME_XIC (f)) free_frame_xic (f); #endif #ifdef USE_X_TOOLKIT if (f->output_data.x->widget) { XtDestroyWidget (f->output_data.x->widget); f->output_data.x->widget = NULL; } /* Tooltips don't have widgets, only a simple X window, even if we are using a toolkit. */ else if (FRAME_X_WINDOW (f)) XDestroyWindow (FRAME_X_DISPLAY (f), FRAME_X_WINDOW (f)); free_frame_menubar (f); #else /* !USE_X_TOOLKIT */ #ifdef USE_GTK /* In the GTK version, tooltips are normal X frames. We must check and free both types. */ if (FRAME_GTK_OUTER_WIDGET (f)) { gtk_widget_destroy (FRAME_GTK_OUTER_WIDGET (f)); FRAME_X_WINDOW (f) = 0; /* Set to avoid XDestroyWindow below */ FRAME_GTK_OUTER_WIDGET (f) = 0; } #endif /* USE_GTK */ if (FRAME_X_WINDOW (f)) XDestroyWindow (FRAME_X_DISPLAY (f), FRAME_X_WINDOW (f)); #endif /* !USE_X_TOOLKIT */ unload_color (f, f->output_data.x->foreground_pixel); unload_color (f, f->output_data.x->background_pixel); unload_color (f, f->output_data.x->cursor_pixel); unload_color (f, f->output_data.x->cursor_foreground_pixel); unload_color (f, f->output_data.x->border_pixel); unload_color (f, f->output_data.x->mouse_pixel); if (f->output_data.x->scroll_bar_background_pixel != -1) unload_color (f, f->output_data.x->scroll_bar_background_pixel); if (f->output_data.x->scroll_bar_foreground_pixel != -1) unload_color (f, f->output_data.x->scroll_bar_foreground_pixel); #ifdef USE_TOOLKIT_SCROLL_BARS /* Scrollbar shadow colors. */ if (f->output_data.x->scroll_bar_top_shadow_pixel != -1) unload_color (f, f->output_data.x->scroll_bar_top_shadow_pixel); if (f->output_data.x->scroll_bar_bottom_shadow_pixel != -1) unload_color (f, f->output_data.x->scroll_bar_bottom_shadow_pixel); #endif /* USE_TOOLKIT_SCROLL_BARS */ if (f->output_data.x->white_relief.allocated_p) unload_color (f, f->output_data.x->white_relief.pixel); if (f->output_data.x->black_relief.allocated_p) unload_color (f, f->output_data.x->black_relief.pixel); if (FRAME_FACE_CACHE (f)) free_frame_faces (f); x_free_gcs (f); XFlush (FRAME_X_DISPLAY (f)); } if (f->output_data.x->saved_menu_event) xfree (f->output_data.x->saved_menu_event); xfree (f->output_data.x); f->output_data.x = NULL; if (f == dpyinfo->x_focus_frame) dpyinfo->x_focus_frame = 0; if (f == dpyinfo->x_focus_event_frame) dpyinfo->x_focus_event_frame = 0; if (f == dpyinfo->x_highlight_frame) dpyinfo->x_highlight_frame = 0; if (f == dpyinfo->mouse_face_mouse_frame) { dpyinfo->mouse_face_beg_row = dpyinfo->mouse_face_beg_col = -1; dpyinfo->mouse_face_end_row = dpyinfo->mouse_face_end_col = -1; dpyinfo->mouse_face_window = Qnil; dpyinfo->mouse_face_deferred_gc = 0; dpyinfo->mouse_face_mouse_frame = 0; } UNBLOCK_INPUT; } /* Destroy the X window of frame F. */ void x_destroy_window (f) struct frame *f; { struct x_display_info *dpyinfo = FRAME_X_DISPLAY_INFO (f); /* If a display connection is dead, don't try sending more commands to the X server. */ if (dpyinfo->display != 0) x_free_frame_resources (f); dpyinfo->reference_count--; } /* Setting window manager hints. */ /* Set the normal size hints for the window manager, for frame F. FLAGS is the flags word to use--or 0 meaning preserve the flags that the window now has. If USER_POSITION is nonzero, we set the USPosition flag (this is useful when FLAGS is 0). The GTK version is in gtkutils.c */ #ifndef USE_GTK void x_wm_set_size_hint (f, flags, user_position) struct frame *f; long flags; int user_position; { XSizeHints size_hints; #ifdef USE_X_TOOLKIT Arg al[2]; int ac = 0; Dimension widget_width, widget_height; #endif Window window = FRAME_OUTER_WINDOW (f); /* Setting PMaxSize caused various problems. */ size_hints.flags = PResizeInc | PMinSize /* | PMaxSize */; size_hints.x = f->left_pos; size_hints.y = f->top_pos; #ifdef USE_X_TOOLKIT XtSetArg (al[ac], XtNwidth, &widget_width); ac++; XtSetArg (al[ac], XtNheight, &widget_height); ac++; XtGetValues (f->output_data.x->widget, al, ac); size_hints.height = widget_height; size_hints.width = widget_width; #else /* not USE_X_TOOLKIT */ size_hints.height = FRAME_PIXEL_HEIGHT (f); size_hints.width = FRAME_PIXEL_WIDTH (f); #endif /* not USE_X_TOOLKIT */ size_hints.width_inc = FRAME_COLUMN_WIDTH (f); size_hints.height_inc = FRAME_LINE_HEIGHT (f); size_hints.max_width = FRAME_X_DISPLAY_INFO (f)->width - FRAME_TEXT_COLS_TO_PIXEL_WIDTH (f, 0); size_hints.max_height = FRAME_X_DISPLAY_INFO (f)->height - FRAME_TEXT_LINES_TO_PIXEL_HEIGHT (f, 0); /* Calculate the base and minimum sizes. (When we use the X toolkit, we don't do it here. Instead we copy the values that the widgets are using, below.) */ #ifndef USE_X_TOOLKIT { int base_width, base_height; int min_rows = 0, min_cols = 0; base_width = FRAME_TEXT_COLS_TO_PIXEL_WIDTH (f, 0); base_height = FRAME_TEXT_LINES_TO_PIXEL_HEIGHT (f, 0); check_frame_size (f, &min_rows, &min_cols); /* The window manager uses the base width hints to calculate the current number of rows and columns in the frame while resizing; min_width and min_height aren't useful for this purpose, since they might not give the dimensions for a zero-row, zero-column frame. We use the base_width and base_height members if we have them; otherwise, we set the min_width and min_height members to the size for a zero x zero frame. */ #ifdef HAVE_X11R4 size_hints.flags |= PBaseSize; size_hints.base_width = base_width; size_hints.base_height = base_height; size_hints.min_width = base_width + min_cols * size_hints.width_inc; size_hints.min_height = base_height + min_rows * size_hints.height_inc; #else size_hints.min_width = base_width; size_hints.min_height = base_height; #endif } /* If we don't need the old flags, we don't need the old hint at all. */ if (flags) { size_hints.flags |= flags; goto no_read; } #endif /* not USE_X_TOOLKIT */ { XSizeHints hints; /* Sometimes I hate X Windows... */ long supplied_return; int value; #ifdef HAVE_X11R4 value = XGetWMNormalHints (FRAME_X_DISPLAY (f), window, &hints, &supplied_return); #else value = XGetNormalHints (FRAME_X_DISPLAY (f), window, &hints); #endif #ifdef USE_X_TOOLKIT size_hints.base_height = hints.base_height; size_hints.base_width = hints.base_width; size_hints.min_height = hints.min_height; size_hints.min_width = hints.min_width; #endif if (flags) size_hints.flags |= flags; else { if (value == 0) hints.flags = 0; if (hints.flags & PSize) size_hints.flags |= PSize; if (hints.flags & PPosition) size_hints.flags |= PPosition; if (hints.flags & USPosition) size_hints.flags |= USPosition; if (hints.flags & USSize) size_hints.flags |= USSize; } } #ifndef USE_X_TOOLKIT no_read: #endif #ifdef PWinGravity size_hints.win_gravity = f->win_gravity; size_hints.flags |= PWinGravity; if (user_position) { size_hints.flags &= ~ PPosition; size_hints.flags |= USPosition; } #endif /* PWinGravity */ #ifdef HAVE_X11R4 XSetWMNormalHints (FRAME_X_DISPLAY (f), window, &size_hints); #else XSetNormalHints (FRAME_X_DISPLAY (f), window, &size_hints); #endif } #endif /* not USE_GTK */ /* Used for IconicState or NormalState */ void x_wm_set_window_state (f, state) struct frame *f; int state; { #ifdef USE_X_TOOLKIT Arg al[1]; XtSetArg (al[0], XtNinitialState, state); XtSetValues (f->output_data.x->widget, al, 1); #else /* not USE_X_TOOLKIT */ Window window = FRAME_X_WINDOW (f); f->output_data.x->wm_hints.flags |= StateHint; f->output_data.x->wm_hints.initial_state = state; XSetWMHints (FRAME_X_DISPLAY (f), window, &f->output_data.x->wm_hints); #endif /* not USE_X_TOOLKIT */ } void x_wm_set_icon_pixmap (f, pixmap_id) struct frame *f; int pixmap_id; { Pixmap icon_pixmap, icon_mask; #ifndef USE_X_TOOLKIT Window window = FRAME_OUTER_WINDOW (f); #endif if (pixmap_id > 0) { icon_pixmap = x_bitmap_pixmap (f, pixmap_id); f->output_data.x->wm_hints.icon_pixmap = icon_pixmap; icon_mask = x_bitmap_mask (f, pixmap_id); f->output_data.x->wm_hints.icon_mask = icon_mask; } else { /* It seems there is no way to turn off use of an icon pixmap. The following line does it, only if no icon has yet been created, for some window managers. But with mwm it crashes. Some people say it should clear the IconPixmapHint bit in this case, but that doesn't work, and the X consortium said it isn't the right thing at all. Since there is no way to win, best to explicitly give up. */ #if 0 f->output_data.x->wm_hints.icon_pixmap = None; f->output_data.x->wm_hints.icon_mask = None; #else return; #endif } #ifdef USE_X_TOOLKIT /* same as in x_wm_set_window_state. */ { Arg al[1]; XtSetArg (al[0], XtNiconPixmap, icon_pixmap); XtSetValues (f->output_data.x->widget, al, 1); XtSetArg (al[0], XtNiconMask, icon_mask); XtSetValues (f->output_data.x->widget, al, 1); } #else /* not USE_X_TOOLKIT */ f->output_data.x->wm_hints.flags |= (IconPixmapHint | IconMaskHint); XSetWMHints (FRAME_X_DISPLAY (f), window, &f->output_data.x->wm_hints); #endif /* not USE_X_TOOLKIT */ } void x_wm_set_icon_position (f, icon_x, icon_y) struct frame *f; int icon_x, icon_y; { Window window = FRAME_OUTER_WINDOW (f); f->output_data.x->wm_hints.flags |= IconPositionHint; f->output_data.x->wm_hints.icon_x = icon_x; f->output_data.x->wm_hints.icon_y = icon_y; XSetWMHints (FRAME_X_DISPLAY (f), window, &f->output_data.x->wm_hints); } /*********************************************************************** Fonts ***********************************************************************/ /* Return a pointer to struct font_info of font FONT_IDX of frame F. */ struct font_info * x_get_font_info (f, font_idx) FRAME_PTR f; int font_idx; { return (FRAME_X_FONT_TABLE (f) + font_idx); } /* Return a list of names of available fonts matching PATTERN on frame F. If SIZE is > 0, it is the size (maximum bounds width) of fonts to be listed. SIZE < 0 means include scalable fonts. Frame F null means we have not yet created any frame on X, and consult the first display in x_display_list. MAXNAMES sets a limit on how many fonts to match. */ Lisp_Object x_list_fonts (f, pattern, size, maxnames) struct frame *f; Lisp_Object pattern; int size; int maxnames; { Lisp_Object list = Qnil, patterns, newlist = Qnil, key = Qnil; Lisp_Object tem, second_best; struct x_display_info *dpyinfo = f ? FRAME_X_DISPLAY_INFO (f) : x_display_list; Display *dpy = dpyinfo->display; int try_XLoadQueryFont = 0; int count; int allow_auto_scaled_font = 0; if (size < 0) { allow_auto_scaled_font = 1; size = 0; } patterns = Fassoc (pattern, Valternate_fontname_alist); if (NILP (patterns)) patterns = Fcons (pattern, Qnil); if (maxnames == 1 && !size) /* We can return any single font matching PATTERN. */ try_XLoadQueryFont = 1; for (; CONSP (patterns); patterns = XCDR (patterns)) { int num_fonts; char **names = NULL; pattern = XCAR (patterns); /* See if we cached the result for this particular query. The cache is an alist of the form: ((((PATTERN . MAXNAMES) . SCALABLE) (FONTNAME . WIDTH) ...) ...) */ tem = XCDR (dpyinfo->name_list_element); key = Fcons (Fcons (pattern, make_number (maxnames)), allow_auto_scaled_font ? Qt : Qnil); list = Fassoc (key, tem); if (!NILP (list)) { list = Fcdr_safe (list); /* We have a cashed list. Don't have to get the list again. */ goto label_cached; } /* At first, put PATTERN in the cache. */ BLOCK_INPUT; count = x_catch_errors (dpy); if (try_XLoadQueryFont) { XFontStruct *font; unsigned long value; font = XLoadQueryFont (dpy, SDATA (pattern)); if (x_had_errors_p (dpy)) { /* This error is perhaps due to insufficient memory on X server. Let's just ignore it. */ font = NULL; x_clear_errors (dpy); } if (font && XGetFontProperty (font, XA_FONT, &value)) { char *name = (char *) XGetAtomName (dpy, (Atom) value); int len = strlen (name); char *tmp; /* If DXPC (a Differential X Protocol Compressor) Ver.3.7 is running, XGetAtomName will return null string. We must avoid such a name. */ if (len == 0) try_XLoadQueryFont = 0; else { num_fonts = 1; names = (char **) alloca (sizeof (char *)); /* Some systems only allow alloca assigned to a simple var. */ tmp = (char *) alloca (len + 1); names[0] = tmp; bcopy (name, names[0], len + 1); XFree (name); } } else try_XLoadQueryFont = 0; if (font) XFreeFont (dpy, font); } if (!try_XLoadQueryFont) { /* We try at least 10 fonts because XListFonts will return auto-scaled fonts at the head. */ if (maxnames < 0) { int limit; for (limit = 500;;) { names = XListFonts (dpy, SDATA (pattern), limit, &num_fonts); if (num_fonts == limit) { BLOCK_INPUT; XFreeFontNames (names); UNBLOCK_INPUT; limit *= 2; } else break; } } else names = XListFonts (dpy, SDATA (pattern), max (maxnames, 10), &num_fonts); if (x_had_errors_p (dpy)) { /* This error is perhaps due to insufficient memory on X server. Let's just ignore it. */ names = NULL; x_clear_errors (dpy); } } x_uncatch_errors (dpy, count); UNBLOCK_INPUT; if (names) { int i; /* Make a list of all the fonts we got back. Store that in the font cache for the display. */ for (i = 0; i < num_fonts; i++) { int width = 0; char *p = names[i]; int average_width = -1, resx = 0, dashes = 0; /* Count the number of dashes in NAMES[I]. If there are 14 dashes, the field value following 9th dash (RESOLUTION_X) is nonzero, and the field value following 12th dash (AVERAGE_WIDTH) is 0, this is a auto-scaled font which is usually too ugly to be used for editing. Let's ignore it. */ while (*p) if (*p++ == '-') { dashes++; if (dashes == 7) /* PIXEL_SIZE field */ width = atoi (p); else if (dashes == 9) resx = atoi (p); else if (dashes == 12) /* AVERAGE_WIDTH field */ average_width = atoi (p); } if (allow_auto_scaled_font || dashes < 14 || average_width != 0 || resx == 0) { tem = build_string (names[i]); if (NILP (Fassoc (tem, list))) { if (STRINGP (Vx_pixel_size_width_font_regexp) && ((fast_c_string_match_ignore_case (Vx_pixel_size_width_font_regexp, names[i])) >= 0)) /* We can set the value of PIXEL_SIZE to the width of this font. */ list = Fcons (Fcons (tem, make_number (width)), list); else /* For the moment, width is not known. */ list = Fcons (Fcons (tem, Qnil), list); } } } if (!try_XLoadQueryFont) { BLOCK_INPUT; XFreeFontNames (names); UNBLOCK_INPUT; } } /* Now store the result in the cache. */ XSETCDR (dpyinfo->name_list_element, Fcons (Fcons (key, list), XCDR (dpyinfo->name_list_element))); label_cached: if (NILP (list)) continue; /* Try the remaining alternatives. */ newlist = second_best = Qnil; /* Make a list of the fonts that have the right width. */ for (; CONSP (list); list = XCDR (list)) { int found_size; tem = XCAR (list); if (!CONSP (tem) || NILP (XCAR (tem))) continue; if (!size) { newlist = Fcons (XCAR (tem), newlist); continue; } if (!INTEGERP (XCDR (tem))) { /* Since we have not yet known the size of this font, we must try slow function call XLoadQueryFont. */ XFontStruct *thisinfo; BLOCK_INPUT; count = x_catch_errors (dpy); thisinfo = XLoadQueryFont (dpy, SDATA (XCAR (tem))); if (x_had_errors_p (dpy)) { /* This error is perhaps due to insufficient memory on X server. Let's just ignore it. */ thisinfo = NULL; x_clear_errors (dpy); } x_uncatch_errors (dpy, count); UNBLOCK_INPUT; if (thisinfo) { XSETCDR (tem, (thisinfo->min_bounds.width == 0 ? make_number (0) : make_number (thisinfo->max_bounds.width))); BLOCK_INPUT; XFreeFont (dpy, thisinfo); UNBLOCK_INPUT; } else /* For unknown reason, the previous call of XListFont had returned a font which can't be opened. Record the size as 0 not to try to open it again. */ XSETCDR (tem, make_number (0)); } found_size = XINT (XCDR (tem)); if (found_size == size) newlist = Fcons (XCAR (tem), newlist); else if (found_size > 0) { if (NILP (second_best)) second_best = tem; else if (found_size < size) { if (XINT (XCDR (second_best)) > size || XINT (XCDR (second_best)) < found_size) second_best = tem; } else { if (XINT (XCDR (second_best)) > size && XINT (XCDR (second_best)) > found_size) second_best = tem; } } } if (!NILP (newlist)) break; else if (!NILP (second_best)) { newlist = Fcons (XCAR (second_best), Qnil); break; } } return newlist; } #if GLYPH_DEBUG /* Check that FONT is valid on frame F. It is if it can be found in F's font table. */ static void x_check_font (f, font) struct frame *f; XFontStruct *font; { int i; struct x_display_info *dpyinfo = FRAME_X_DISPLAY_INFO (f); xassert (font != NULL); for (i = 0; i < dpyinfo->n_fonts; i++) if (dpyinfo->font_table[i].name && font == dpyinfo->font_table[i].font) break; xassert (i < dpyinfo->n_fonts); } #endif /* GLYPH_DEBUG != 0 */ /* Set *W to the minimum width, *H to the minimum font height of FONT. Note: There are (broken) X fonts out there with invalid XFontStruct min_bounds contents. For example, handa@etl.go.jp reports that "-adobe-courier-medium-r-normal--*-180-*-*-m-*-iso8859-1" fonts have font->min_bounds.width == 0. */ static INLINE void x_font_min_bounds (font, w, h) XFontStruct *font; int *w, *h; { *h = FONT_HEIGHT (font); *w = font->min_bounds.width; /* Try to handle the case where FONT->min_bounds has invalid contents. Since the only font known to have invalid min_bounds is fixed-width, use max_bounds if min_bounds seems to be invalid. */ if (*w <= 0) *w = font->max_bounds.width; } /* Compute the smallest character width and smallest font height over all fonts available on frame F. Set the members smallest_char_width and smallest_font_height in F's x_display_info structure to the values computed. Value is non-zero if smallest_font_height or smallest_char_width become smaller than they were before. */ static int x_compute_min_glyph_bounds (f) struct frame *f; { int i; struct x_display_info *dpyinfo = FRAME_X_DISPLAY_INFO (f); XFontStruct *font; int old_width = dpyinfo->smallest_char_width; int old_height = dpyinfo->smallest_font_height; dpyinfo->smallest_font_height = 100000; dpyinfo->smallest_char_width = 100000; for (i = 0; i < dpyinfo->n_fonts; ++i) if (dpyinfo->font_table[i].name) { struct font_info *fontp = dpyinfo->font_table + i; int w, h; font = (XFontStruct *) fontp->font; xassert (font != (XFontStruct *) ~0); x_font_min_bounds (font, &w, &h); dpyinfo->smallest_font_height = min (dpyinfo->smallest_font_height, h); dpyinfo->smallest_char_width = min (dpyinfo->smallest_char_width, w); } xassert (dpyinfo->smallest_char_width > 0 && dpyinfo->smallest_font_height > 0); return (dpyinfo->n_fonts == 1 || dpyinfo->smallest_char_width < old_width || dpyinfo->smallest_font_height < old_height); } /* Load font named FONTNAME of the size SIZE for frame F, and return a pointer to the structure font_info while allocating it dynamically. If SIZE is 0, load any size of font. If loading is failed, return NULL. */ struct font_info * x_load_font (f, fontname, size) struct frame *f; register char *fontname; int size; { struct x_display_info *dpyinfo = FRAME_X_DISPLAY_INFO (f); Lisp_Object font_names; int count; /* Get a list of all the fonts that match this name. Once we have a list of matching fonts, we compare them against the fonts we already have by comparing names. */ font_names = x_list_fonts (f, build_string (fontname), size, 1); if (!NILP (font_names)) { Lisp_Object tail; int i; for (i = 0; i < dpyinfo->n_fonts; i++) for (tail = font_names; CONSP (tail); tail = XCDR (tail)) if (dpyinfo->font_table[i].name && (!strcmp (dpyinfo->font_table[i].name, SDATA (XCAR (tail))) || !strcmp (dpyinfo->font_table[i].full_name, SDATA (XCAR (tail))))) return (dpyinfo->font_table + i); } /* Load the font and add it to the table. */ { char *full_name; XFontStruct *font; struct font_info *fontp; unsigned long value; int i; /* If we have found fonts by x_list_font, load one of them. If not, we still try to load a font by the name given as FONTNAME because XListFonts (called in x_list_font) of some X server has a bug of not finding a font even if the font surely exists and is loadable by XLoadQueryFont. */ if (size > 0 && !NILP (font_names)) fontname = (char *) SDATA (XCAR (font_names)); BLOCK_INPUT; count = x_catch_errors (FRAME_X_DISPLAY (f)); font = (XFontStruct *) XLoadQueryFont (FRAME_X_DISPLAY (f), fontname); if (x_had_errors_p (FRAME_X_DISPLAY (f))) { /* This error is perhaps due to insufficient memory on X server. Let's just ignore it. */ font = NULL; x_clear_errors (FRAME_X_DISPLAY (f)); } x_uncatch_errors (FRAME_X_DISPLAY (f), count); UNBLOCK_INPUT; if (!font) return NULL; /* Find a free slot in the font table. */ for (i = 0; i < dpyinfo->n_fonts; ++i) if (dpyinfo->font_table[i].name == NULL) break; /* If no free slot found, maybe enlarge the font table. */ if (i == dpyinfo->n_fonts && dpyinfo->n_fonts == dpyinfo->font_table_size) { int sz; dpyinfo->font_table_size = max (16, 2 * dpyinfo->font_table_size); sz = dpyinfo->font_table_size * sizeof *dpyinfo->font_table; dpyinfo->font_table = (struct font_info *) xrealloc (dpyinfo->font_table, sz); } fontp = dpyinfo->font_table + i; if (i == dpyinfo->n_fonts) ++dpyinfo->n_fonts; /* Now fill in the slots of *FONTP. */ BLOCK_INPUT; bzero (fontp, sizeof (*fontp)); fontp->font = font; fontp->font_idx = i; fontp->name = (char *) xmalloc (strlen (fontname) + 1); bcopy (fontname, fontp->name, strlen (fontname) + 1); if (font->min_bounds.width == font->max_bounds.width) { /* Fixed width font. */ fontp->average_width = fontp->space_width = font->min_bounds.width; } else { XChar2b char2b; XCharStruct *pcm; char2b.byte1 = 0x00, char2b.byte2 = 0x20; pcm = x_per_char_metric (font, &char2b, 0); if (pcm) fontp->space_width = pcm->width; else fontp->space_width = FONT_WIDTH (font); fontp->average_width = (XGetFontProperty (font, dpyinfo->Xatom_AVERAGE_WIDTH, &value) ? (long) value / 10 : 0); if (fontp->average_width < 0) fontp->average_width = - fontp->average_width; if (fontp->average_width == 0) { if (pcm) { int width = pcm->width; for (char2b.byte2 = 33; char2b.byte2 <= 126; char2b.byte2++) if ((pcm = x_per_char_metric (font, &char2b, 0)) != NULL) width += pcm->width; fontp->average_width = width / 95; } else fontp->average_width = FONT_WIDTH (font); } } /* Try to get the full name of FONT. Put it in FULL_NAME. */ full_name = 0; if (XGetFontProperty (font, XA_FONT, &value)) { char *name = (char *) XGetAtomName (FRAME_X_DISPLAY (f), (Atom) value); char *p = name; int dashes = 0; /* Count the number of dashes in the "full name". If it is too few, this isn't really the font's full name, so don't use it. In X11R4, the fonts did not come with their canonical names stored in them. */ while (*p) { if (*p == '-') dashes++; p++; } if (dashes >= 13) { full_name = (char *) xmalloc (p - name + 1); bcopy (name, full_name, p - name + 1); } XFree (name); } if (full_name != 0) fontp->full_name = full_name; else fontp->full_name = fontp->name; fontp->size = font->max_bounds.width; fontp->height = FONT_HEIGHT (font); if (NILP (font_names)) { /* We come here because of a bug of XListFonts mentioned at the head of this block. Let's store this information in the cache for x_list_fonts. */ Lisp_Object lispy_name = build_string (fontname); Lisp_Object lispy_full_name = build_string (fontp->full_name); Lisp_Object key = Fcons (Fcons (lispy_name, make_number (256)), Qnil); XSETCDR (dpyinfo->name_list_element, Fcons (Fcons (key, Fcons (Fcons (lispy_full_name, make_number (fontp->size)), Qnil)), XCDR (dpyinfo->name_list_element))); if (full_name) { key = Fcons (Fcons (lispy_full_name, make_number (256)), Qnil); XSETCDR (dpyinfo->name_list_element, Fcons (Fcons (key, Fcons (Fcons (lispy_full_name, make_number (fontp->size)), Qnil)), XCDR (dpyinfo->name_list_element))); } } /* The slot `encoding' specifies how to map a character code-points (0x20..0x7F or 0x2020..0x7F7F) of each charset to the font code-points (0:0x20..0x7F, 1:0xA0..0xFF), or (0:0x2020..0x7F7F, 1:0xA0A0..0xFFFF, 3:0x20A0..0x7FFF, 2:0xA020..0xFF7F). For the moment, we don't know which charset uses this font. So, we set information in fontp->encoding[1] which is never used by any charset. If mapping can't be decided, set FONT_ENCODING_NOT_DECIDED. */ fontp->encoding[1] = (font->max_byte1 == 0 /* 1-byte font */ ? (font->min_char_or_byte2 < 0x80 ? (font->max_char_or_byte2 < 0x80 ? 0 /* 0x20..0x7F */ : FONT_ENCODING_NOT_DECIDED) /* 0x20..0xFF */ : 1) /* 0xA0..0xFF */ /* 2-byte font */ : (font->min_byte1 < 0x80 ? (font->max_byte1 < 0x80 ? (font->min_char_or_byte2 < 0x80 ? (font->max_char_or_byte2 < 0x80 ? 0 /* 0x2020..0x7F7F */ : FONT_ENCODING_NOT_DECIDED) /* 0x2020..0x7FFF */ : 3) /* 0x20A0..0x7FFF */ : FONT_ENCODING_NOT_DECIDED) /* 0x20??..0xA0?? */ : (font->min_char_or_byte2 < 0x80 ? (font->max_char_or_byte2 < 0x80 ? 2 /* 0xA020..0xFF7F */ : FONT_ENCODING_NOT_DECIDED) /* 0xA020..0xFFFF */ : 1))); /* 0xA0A0..0xFFFF */ fontp->baseline_offset = (XGetFontProperty (font, dpyinfo->Xatom_MULE_BASELINE_OFFSET, &value) ? (long) value : 0); fontp->relative_compose = (XGetFontProperty (font, dpyinfo->Xatom_MULE_RELATIVE_COMPOSE, &value) ? (long) value : 0); fontp->default_ascent = (XGetFontProperty (font, dpyinfo->Xatom_MULE_DEFAULT_ASCENT, &value) ? (long) value : 0); /* Set global flag fonts_changed_p to non-zero if the font loaded has a character with a smaller width than any other character before, or if the font loaded has a smaller height than any other font loaded before. If this happens, it will make a glyph matrix reallocation necessary. */ fonts_changed_p |= x_compute_min_glyph_bounds (f); UNBLOCK_INPUT; return fontp; } } /* Return a pointer to struct font_info of a font named FONTNAME for frame F. If no such font is loaded, return NULL. */ struct font_info * x_query_font (f, fontname) struct frame *f; register char *fontname; { struct x_display_info *dpyinfo = FRAME_X_DISPLAY_INFO (f); int i; for (i = 0; i < dpyinfo->n_fonts; i++) if (dpyinfo->font_table[i].name && (!strcmp (dpyinfo->font_table[i].name, fontname) || !strcmp (dpyinfo->font_table[i].full_name, fontname))) return (dpyinfo->font_table + i); return NULL; } /* Find a CCL program for a font specified by FONTP, and set the member `encoder' of the structure. */ void x_find_ccl_program (fontp) struct font_info *fontp; { Lisp_Object list, elt; elt = Qnil; for (list = Vfont_ccl_encoder_alist; CONSP (list); list = XCDR (list)) { elt = XCAR (list); if (CONSP (elt) && STRINGP (XCAR (elt)) && ((fast_c_string_match_ignore_case (XCAR (elt), fontp->name) >= 0) || (fast_c_string_match_ignore_case (XCAR (elt), fontp->full_name) >= 0))) break; } if (! NILP (list)) { struct ccl_program *ccl = (struct ccl_program *) xmalloc (sizeof (struct ccl_program)); if (setup_ccl_program (ccl, XCDR (elt)) < 0) xfree (ccl); else fontp->font_encoder = ccl; } } /*********************************************************************** Initialization ***********************************************************************/ #ifdef USE_X_TOOLKIT static XrmOptionDescRec emacs_options[] = { {"-geometry", ".geometry", XrmoptionSepArg, NULL}, {"-iconic", ".iconic", XrmoptionNoArg, (XtPointer) "yes"}, {"-internal-border-width", "*EmacsScreen.internalBorderWidth", XrmoptionSepArg, NULL}, {"-ib", "*EmacsScreen.internalBorderWidth", XrmoptionSepArg, NULL}, {"-T", "*EmacsShell.title", XrmoptionSepArg, (XtPointer) NULL}, {"-wn", "*EmacsShell.title", XrmoptionSepArg, (XtPointer) NULL}, {"-title", "*EmacsShell.title", XrmoptionSepArg, (XtPointer) NULL}, {"-iconname", "*EmacsShell.iconName", XrmoptionSepArg, (XtPointer) NULL}, {"-in", "*EmacsShell.iconName", XrmoptionSepArg, (XtPointer) NULL}, {"-mc", "*pointerColor", XrmoptionSepArg, (XtPointer) NULL}, {"-cr", "*cursorColor", XrmoptionSepArg, (XtPointer) NULL} }; #endif /* USE_X_TOOLKIT */ static int x_initialized; #ifdef MULTI_KBOARD /* Test whether two display-name strings agree up to the dot that separates the screen number from the server number. */ static int same_x_server (name1, name2) const char *name1, *name2; { int seen_colon = 0; const unsigned char *system_name = SDATA (Vsystem_name); int system_name_length = strlen (system_name); int length_until_period = 0; while (system_name[length_until_period] != 0 && system_name[length_until_period] != '.') length_until_period++; /* Treat `unix' like an empty host name. */ if (! strncmp (name1, "unix:", 5)) name1 += 4; if (! strncmp (name2, "unix:", 5)) name2 += 4; /* Treat this host's name like an empty host name. */ if (! strncmp (name1, system_name, system_name_length) && name1[system_name_length] == ':') name1 += system_name_length; if (! strncmp (name2, system_name, system_name_length) && name2[system_name_length] == ':') name2 += system_name_length; /* Treat this host's domainless name like an empty host name. */ if (! strncmp (name1, system_name, length_until_period) && name1[length_until_period] == ':') name1 += length_until_period; if (! strncmp (name2, system_name, length_until_period) && name2[length_until_period] == ':') name2 += length_until_period; for (; *name1 != '\0' && *name1 == *name2; name1++, name2++) { if (*name1 == ':') seen_colon++; if (seen_colon && *name1 == '.') return 1; } return (seen_colon && (*name1 == '.' || *name1 == '\0') && (*name2 == '.' || *name2 == '\0')); } #endif /* Count number of set bits in mask and number of bits to shift to get to the first bit. With MASK 0x7e0, *BITS is set to 6, and *OFFSET to 5. */ static void get_bits_and_offset (mask, bits, offset) unsigned long mask; int *bits; int *offset; { int nr = 0; int off = 0; while (!(mask & 1)) { off++; mask >>= 1; } while (mask & 1) { nr++; mask >>= 1; } *offset = off; *bits = nr; } struct x_display_info * x_term_init (display_name, xrm_option, resource_name) Lisp_Object display_name; char *xrm_option; char *resource_name; { int connection; Display *dpy; struct x_display_info *dpyinfo; XrmDatabase xrdb; BLOCK_INPUT; if (!x_initialized) { x_initialize (); ++x_initialized; } #ifdef USE_GTK { #define NUM_ARGV 10 int argc; char *argv[NUM_ARGV]; char **argv2 = argv; GdkAtom atom; if (x_initialized++ > 1) { /* Opening another display. If xg_display_open returns less than zero, we are probably on GTK 2.0, which can only handle one display. GTK 2.2 or later can handle more than one. */ if (xg_display_open (SDATA (display_name), &dpy) < 0) error ("Sorry, this version of GTK can only handle one display"); } else { for (argc = 0; argc < NUM_ARGV; ++argc) argv[argc] = 0; argc = 0; argv[argc++] = initial_argv[0]; if (! NILP (display_name)) { argv[argc++] = "--display"; argv[argc++] = SDATA (display_name); } argv[argc++] = "--name"; argv[argc++] = resource_name; #ifdef HAVE_X11R5 XSetLocaleModifiers (""); #endif gtk_init (&argc, &argv2); /* gtk_init does set_locale. We must fix locale after calling it. */ fixup_locale (); xg_initialize (); dpy = GDK_DISPLAY (); /* NULL window -> events for all windows go to our function */ gdk_window_add_filter (NULL, event_handler_gdk, NULL); /* Load our own gtkrc if it exists. */ { struct gcpro gcpro1, gcpro2; char *file = "~/.emacs.d/gtkrc"; Lisp_Object s, abs_file; GCPRO2 (s, abs_file); s = make_string (file, strlen (file)); abs_file = Fexpand_file_name (s, Qnil); if (! NILP (abs_file) && !NILP (Ffile_readable_p (abs_file))) gtk_rc_parse (SDATA (abs_file)); UNGCPRO; } XSetErrorHandler (x_error_handler); XSetIOErrorHandler (x_io_error_quitter); } } #else /* not USE_GTK */ #ifdef USE_X_TOOLKIT /* weiner@footloose.sps.mot.com reports that this causes errors with X11R5: X protocol error: BadAtom (invalid Atom parameter) on protocol request 18skiloaf. So let's not use it until R6. */ #ifdef HAVE_X11XTR6 XtSetLanguageProc (NULL, NULL, NULL); #endif { int argc = 0; char *argv[3]; argv[0] = ""; argc = 1; if (xrm_option) { argv[argc++] = "-xrm"; argv[argc++] = xrm_option; } turn_on_atimers (0); dpy = XtOpenDisplay (Xt_app_con, SDATA (display_name), resource_name, EMACS_CLASS, emacs_options, XtNumber (emacs_options), &argc, argv); turn_on_atimers (1); #ifdef HAVE_X11XTR6 /* I think this is to compensate for XtSetLanguageProc. */ fixup_locale (); #endif } #else /* not USE_X_TOOLKIT */ #ifdef HAVE_X11R5 XSetLocaleModifiers (""); #endif dpy = XOpenDisplay (SDATA (display_name)); #endif /* not USE_X_TOOLKIT */ #endif /* not USE_GTK*/ /* Detect failure. */ if (dpy == 0) { UNBLOCK_INPUT; return 0; } /* We have definitely succeeded. Record the new connection. */ dpyinfo = (struct x_display_info *) xmalloc (sizeof (struct x_display_info)); bzero (dpyinfo, sizeof *dpyinfo); #ifdef MULTI_KBOARD { struct x_display_info *share; Lisp_Object tail; for (share = x_display_list, tail = x_display_name_list; share; share = share->next, tail = XCDR (tail)) if (same_x_server (SDATA (XCAR (XCAR (tail))), SDATA (display_name))) break; if (share) dpyinfo->kboard = share->kboard; else { dpyinfo->kboard = (KBOARD *) xmalloc (sizeof (KBOARD)); init_kboard (dpyinfo->kboard); if (!EQ (XSYMBOL (Qvendor_specific_keysyms)->function, Qunbound)) { char *vendor = ServerVendor (dpy); UNBLOCK_INPUT; dpyinfo->kboard->Vsystem_key_alist = call1 (Qvendor_specific_keysyms, build_string (vendor ? vendor : "")); BLOCK_INPUT; } dpyinfo->kboard->next_kboard = all_kboards; all_kboards = dpyinfo->kboard; /* Don't let the initial kboard remain current longer than necessary. That would cause problems if a file loaded on startup tries to prompt in the mini-buffer. */ if (current_kboard == initial_kboard) current_kboard = dpyinfo->kboard; } dpyinfo->kboard->reference_count++; } #endif /* Put this display on the chain. */ dpyinfo->next = x_display_list; x_display_list = dpyinfo; /* Put it on x_display_name_list as well, to keep them parallel. */ x_display_name_list = Fcons (Fcons (display_name, Qnil), x_display_name_list); dpyinfo->name_list_element = XCAR (x_display_name_list); dpyinfo->display = dpy; #if 0 XSetAfterFunction (x_current_display, x_trace_wire); #endif /* ! 0 */ dpyinfo->x_id_name = (char *) xmalloc (SBYTES (Vinvocation_name) + SBYTES (Vsystem_name) + 2); sprintf (dpyinfo->x_id_name, "%s@%s", SDATA (Vinvocation_name), SDATA (Vsystem_name)); /* Figure out which modifier bits mean what. */ x_find_modifier_meanings (dpyinfo); /* Get the scroll bar cursor. */ #ifdef USE_GTK /* We must create a GTK cursor, it is required for GTK widgets. */ dpyinfo->xg_cursor = xg_create_default_cursor (dpyinfo->display); #endif /* USE_GTK */ dpyinfo->vertical_scroll_bar_cursor = XCreateFontCursor (dpyinfo->display, XC_sb_v_double_arrow); xrdb = x_load_resources (dpyinfo->display, xrm_option, resource_name, EMACS_CLASS); #ifdef HAVE_XRMSETDATABASE XrmSetDatabase (dpyinfo->display, xrdb); #else dpyinfo->display->db = xrdb; #endif /* Put the rdb where we can find it in a way that works on all versions. */ dpyinfo->xrdb = xrdb; dpyinfo->screen = ScreenOfDisplay (dpyinfo->display, DefaultScreen (dpyinfo->display)); select_visual (dpyinfo); dpyinfo->cmap = DefaultColormapOfScreen (dpyinfo->screen); dpyinfo->height = HeightOfScreen (dpyinfo->screen); dpyinfo->width = WidthOfScreen (dpyinfo->screen); dpyinfo->root_window = RootWindowOfScreen (dpyinfo->screen); dpyinfo->client_leader_window = 0; dpyinfo->grabbed = 0; dpyinfo->reference_count = 0; dpyinfo->icon_bitmap_id = -1; dpyinfo->font_table = NULL; dpyinfo->n_fonts = 0; dpyinfo->font_table_size = 0; dpyinfo->bitmaps = 0; dpyinfo->bitmaps_size = 0; dpyinfo->bitmaps_last = 0; dpyinfo->scratch_cursor_gc = 0; dpyinfo->mouse_face_mouse_frame = 0; dpyinfo->mouse_face_deferred_gc = 0; dpyinfo->mouse_face_beg_row = dpyinfo->mouse_face_beg_col = -1; dpyinfo->mouse_face_end_row = dpyinfo->mouse_face_end_col = -1; dpyinfo->mouse_face_face_id = DEFAULT_FACE_ID; dpyinfo->mouse_face_window = Qnil; dpyinfo->mouse_face_overlay = Qnil; dpyinfo->mouse_face_mouse_x = dpyinfo->mouse_face_mouse_y = 0; dpyinfo->mouse_face_defer = 0; dpyinfo->mouse_face_hidden = 0; dpyinfo->x_focus_frame = 0; dpyinfo->x_focus_event_frame = 0; dpyinfo->x_highlight_frame = 0; dpyinfo->image_cache = make_image_cache (); dpyinfo->wm_type = X_WMTYPE_UNKNOWN; /* See if we can construct pixel values from RGB values. */ dpyinfo->red_bits = dpyinfo->blue_bits = dpyinfo->green_bits = 0; dpyinfo->red_offset = dpyinfo->blue_offset = dpyinfo->green_offset = 0; if (dpyinfo->visual->class == TrueColor) { get_bits_and_offset (dpyinfo->visual->red_mask, &dpyinfo->red_bits, &dpyinfo->red_offset); get_bits_and_offset (dpyinfo->visual->blue_mask, &dpyinfo->blue_bits, &dpyinfo->blue_offset); get_bits_and_offset (dpyinfo->visual->green_mask, &dpyinfo->green_bits, &dpyinfo->green_offset); } /* See if a private colormap is requested. */ if (dpyinfo->visual == DefaultVisualOfScreen (dpyinfo->screen)) { if (dpyinfo->visual->class == PseudoColor) { Lisp_Object value; value = display_x_get_resource (dpyinfo, build_string ("privateColormap"), build_string ("PrivateColormap"), Qnil, Qnil); if (STRINGP (value) && (!strcmp (SDATA (value), "true") || !strcmp (SDATA (value), "on"))) dpyinfo->cmap = XCopyColormapAndFree (dpyinfo->display, dpyinfo->cmap); } } else dpyinfo->cmap = XCreateColormap (dpyinfo->display, dpyinfo->root_window, dpyinfo->visual, AllocNone); { int screen_number = XScreenNumberOfScreen (dpyinfo->screen); double pixels = DisplayHeight (dpyinfo->display, screen_number); double mm = DisplayHeightMM (dpyinfo->display, screen_number); /* Mac OS X 10.3's Xserver sometimes reports 0.0mm. */ dpyinfo->resy = (mm < 1) ? 100 : pixels * 25.4 / mm; pixels = DisplayWidth (dpyinfo->display, screen_number); /* Mac OS X 10.3's Xserver sometimes reports 0.0mm. */ mm = DisplayWidthMM (dpyinfo->display, screen_number); dpyinfo->resx = (mm < 1) ? 100 : pixels * 25.4 / mm; } dpyinfo->Xatom_wm_protocols = XInternAtom (dpyinfo->display, "WM_PROTOCOLS", False); dpyinfo->Xatom_wm_take_focus = XInternAtom (dpyinfo->display, "WM_TAKE_FOCUS", False); dpyinfo->Xatom_wm_save_yourself = XInternAtom (dpyinfo->display, "WM_SAVE_YOURSELF", False); dpyinfo->Xatom_wm_delete_window = XInternAtom (dpyinfo->display, "WM_DELETE_WINDOW", False); dpyinfo->Xatom_wm_change_state = XInternAtom (dpyinfo->display, "WM_CHANGE_STATE", False); dpyinfo->Xatom_wm_configure_denied = XInternAtom (dpyinfo->display, "WM_CONFIGURE_DENIED", False); dpyinfo->Xatom_wm_window_moved = XInternAtom (dpyinfo->display, "WM_MOVED", False); dpyinfo->Xatom_wm_client_leader = XInternAtom (dpyinfo->display, "WM_CLIENT_LEADER", False); dpyinfo->Xatom_editres = XInternAtom (dpyinfo->display, "Editres", False); dpyinfo->Xatom_CLIPBOARD = XInternAtom (dpyinfo->display, "CLIPBOARD", False); dpyinfo->Xatom_TIMESTAMP = XInternAtom (dpyinfo->display, "TIMESTAMP", False); dpyinfo->Xatom_TEXT = XInternAtom (dpyinfo->display, "TEXT", False); dpyinfo->Xatom_COMPOUND_TEXT = XInternAtom (dpyinfo->display, "COMPOUND_TEXT", False); dpyinfo->Xatom_UTF8_STRING = XInternAtom (dpyinfo->display, "UTF8_STRING", False); dpyinfo->Xatom_DELETE = XInternAtom (dpyinfo->display, "DELETE", False); dpyinfo->Xatom_MULTIPLE = XInternAtom (dpyinfo->display, "MULTIPLE", False); dpyinfo->Xatom_INCR = XInternAtom (dpyinfo->display, "INCR", False); dpyinfo->Xatom_EMACS_TMP = XInternAtom (dpyinfo->display, "_EMACS_TMP_", False); dpyinfo->Xatom_TARGETS = XInternAtom (dpyinfo->display, "TARGETS", False); dpyinfo->Xatom_NULL = XInternAtom (dpyinfo->display, "NULL", False); dpyinfo->Xatom_ATOM_PAIR = XInternAtom (dpyinfo->display, "ATOM_PAIR", False); /* For properties of font. */ dpyinfo->Xatom_PIXEL_SIZE = XInternAtom (dpyinfo->display, "PIXEL_SIZE", False); dpyinfo->Xatom_AVERAGE_WIDTH = XInternAtom (dpyinfo->display, "AVERAGE_WIDTH", False); dpyinfo->Xatom_MULE_BASELINE_OFFSET = XInternAtom (dpyinfo->display, "_MULE_BASELINE_OFFSET", False); dpyinfo->Xatom_MULE_RELATIVE_COMPOSE = XInternAtom (dpyinfo->display, "_MULE_RELATIVE_COMPOSE", False); dpyinfo->Xatom_MULE_DEFAULT_ASCENT = XInternAtom (dpyinfo->display, "_MULE_DEFAULT_ASCENT", False); /* Ghostscript support. */ dpyinfo->Xatom_PAGE = XInternAtom (dpyinfo->display, "PAGE", False); dpyinfo->Xatom_DONE = XInternAtom (dpyinfo->display, "DONE", False); dpyinfo->Xatom_Scrollbar = XInternAtom (dpyinfo->display, "SCROLLBAR", False); dpyinfo->cut_buffers_initialized = 0; connection = ConnectionNumber (dpyinfo->display); dpyinfo->connection = connection; { char null_bits[1]; null_bits[0] = 0x00; dpyinfo->null_pixel = XCreatePixmapFromBitmapData (dpyinfo->display, dpyinfo->root_window, null_bits, 1, 1, (long) 0, (long) 0, 1); } { extern int gray_bitmap_width, gray_bitmap_height; extern char *gray_bitmap_bits; dpyinfo->gray = XCreatePixmapFromBitmapData (dpyinfo->display, dpyinfo->root_window, gray_bitmap_bits, gray_bitmap_width, gray_bitmap_height, (unsigned long) 1, (unsigned long) 0, 1); } #ifdef HAVE_X_I18N xim_initialize (dpyinfo, resource_name); #endif #ifdef subprocesses /* This is only needed for distinguishing keyboard and process input. */ if (connection != 0) add_keyboard_wait_descriptor (connection); #endif #ifndef F_SETOWN_BUG #ifdef F_SETOWN #ifdef F_SETOWN_SOCK_NEG /* stdin is a socket here */ fcntl (connection, F_SETOWN, -getpid ()); #else /* ! defined (F_SETOWN_SOCK_NEG) */ fcntl (connection, F_SETOWN, getpid ()); #endif /* ! defined (F_SETOWN_SOCK_NEG) */ #endif /* ! defined (F_SETOWN) */ #endif /* F_SETOWN_BUG */ #ifdef SIGIO if (interrupt_input) init_sigio (connection); #endif /* ! defined (SIGIO) */ #ifdef USE_LUCID #ifdef HAVE_X11R5 /* It seems X11R4 lacks XtCvtStringToFont, and XPointer. */ /* Make sure that we have a valid font for dialog boxes so that Xt does not crash. */ { Display *dpy = dpyinfo->display; XrmValue d, fr, to; Font font; int count; d.addr = (XPointer)&dpy; d.size = sizeof (Display *); fr.addr = XtDefaultFont; fr.size = sizeof (XtDefaultFont); to.size = sizeof (Font *); to.addr = (XPointer)&font; count = x_catch_errors (dpy); if (!XtCallConverter (dpy, XtCvtStringToFont, &d, 1, &fr, &to, NULL)) abort (); if (x_had_errors_p (dpy) || !XQueryFont (dpy, font)) XrmPutLineResource (&xrdb, "Emacs.dialog.*.font: 9x15"); x_uncatch_errors (dpy, count); } #endif #endif /* See if we should run in synchronous mode. This is useful for debugging X code. */ { Lisp_Object value; value = display_x_get_resource (dpyinfo, build_string ("synchronous"), build_string ("Synchronous"), Qnil, Qnil); if (STRINGP (value) && (!strcmp (SDATA (value), "true") || !strcmp (SDATA (value), "on"))) XSynchronize (dpyinfo->display, True); } { Lisp_Object value; value = display_x_get_resource (dpyinfo, build_string ("useXIM"), build_string ("UseXIM"), Qnil, Qnil); #ifdef USE_XIM if (STRINGP (value) && (!strcmp (XSTRING (value)->data, "false") || !strcmp (XSTRING (value)->data, "off"))) use_xim = 0; #else if (STRINGP (value) && (!strcmp (XSTRING (value)->data, "true") || !strcmp (XSTRING (value)->data, "on"))) use_xim = 1; #endif } #ifdef HAVE_X_SM /* Only do this for the first display. */ if (x_initialized == 1) x_session_initialize (dpyinfo); #endif UNBLOCK_INPUT; return dpyinfo; } /* Get rid of display DPYINFO, assuming all frames are already gone, and without sending any more commands to the X server. */ void x_delete_display (dpyinfo) struct x_display_info *dpyinfo; { int i; delete_keyboard_wait_descriptor (dpyinfo->connection); /* Discard this display from x_display_name_list and x_display_list. We can't use Fdelq because that can quit. */ if (! NILP (x_display_name_list) && EQ (XCAR (x_display_name_list), dpyinfo->name_list_element)) x_display_name_list = XCDR (x_display_name_list); else { Lisp_Object tail; tail = x_display_name_list; while (CONSP (tail) && CONSP (XCDR (tail))) { if (EQ (XCAR (XCDR (tail)), dpyinfo->name_list_element)) { XSETCDR (tail, XCDR (XCDR (tail))); break; } tail = XCDR (tail); } } if (next_noop_dpyinfo == dpyinfo) next_noop_dpyinfo = dpyinfo->next; if (x_display_list == dpyinfo) x_display_list = dpyinfo->next; else { struct x_display_info *tail; for (tail = x_display_list; tail; tail = tail->next) if (tail->next == dpyinfo) tail->next = tail->next->next; } #ifndef USE_X_TOOLKIT /* I'm told Xt does this itself. */ #ifndef AIX /* On AIX, XCloseDisplay calls this. */ XrmDestroyDatabase (dpyinfo->xrdb); #endif #endif #ifdef MULTI_KBOARD if (--dpyinfo->kboard->reference_count == 0) delete_kboard (dpyinfo->kboard); #endif #ifdef HAVE_X_I18N if (dpyinfo->xim) xim_close_dpy (dpyinfo); #endif /* Free the font names in the font table. */ for (i = 0; i < dpyinfo->n_fonts; i++) if (dpyinfo->font_table[i].name) { if (dpyinfo->font_table[i].name != dpyinfo->font_table[i].full_name) xfree (dpyinfo->font_table[i].full_name); xfree (dpyinfo->font_table[i].name); } if (dpyinfo->font_table->font_encoder) xfree (dpyinfo->font_table->font_encoder); xfree (dpyinfo->font_table); xfree (dpyinfo->x_id_name); xfree (dpyinfo->color_cells); xfree (dpyinfo); } #ifdef USE_X_TOOLKIT /* Atimer callback function for TIMER. Called every 0.1s to process Xt timeouts, if needed. We must avoid calling XtAppPending as much as possible because that function does an implicit XFlush that slows us down. */ static void x_process_timeouts (timer) struct atimer *timer; { if (toolkit_scroll_bar_interaction || popup_activated ()) { BLOCK_INPUT; while (XtAppPending (Xt_app_con) & XtIMTimer) XtAppProcessEvent (Xt_app_con, XtIMTimer); UNBLOCK_INPUT; } } #endif /* USE_X_TOOLKIT */ /* Set up use of X before we make the first connection. */ extern frame_parm_handler x_frame_parm_handlers[]; static struct redisplay_interface x_redisplay_interface = { x_frame_parm_handlers, x_produce_glyphs, x_write_glyphs, x_insert_glyphs, x_clear_end_of_line, x_scroll_run, x_after_update_window_line, x_update_window_begin, x_update_window_end, x_cursor_to, x_flush, #ifdef XFlush x_flush, #else 0, /* flush_display_optional */ #endif x_clear_window_mouse_face, x_get_glyph_overhangs, x_fix_overlapping_area, x_draw_fringe_bitmap, 0, /* define_fringe_bitmap */ 0, /* destroy_fringe_bitmap */ x_per_char_metric, x_encode_char, x_compute_glyph_string_overhangs, x_draw_glyph_string, x_define_frame_cursor, x_clear_frame_area, x_draw_window_cursor, x_draw_vertical_window_border, x_shift_glyphs_for_insert }; void x_initialize () { rif = &x_redisplay_interface; clear_frame_hook = x_clear_frame; ins_del_lines_hook = x_ins_del_lines; delete_glyphs_hook = x_delete_glyphs; ring_bell_hook = XTring_bell; reset_terminal_modes_hook = XTreset_terminal_modes; set_terminal_modes_hook = XTset_terminal_modes; update_begin_hook = x_update_begin; update_end_hook = x_update_end; set_terminal_window_hook = XTset_terminal_window; read_socket_hook = XTread_socket; frame_up_to_date_hook = XTframe_up_to_date; mouse_position_hook = XTmouse_position; frame_rehighlight_hook = XTframe_rehighlight; frame_raise_lower_hook = XTframe_raise_lower; set_vertical_scroll_bar_hook = XTset_vertical_scroll_bar; condemn_scroll_bars_hook = XTcondemn_scroll_bars; redeem_scroll_bar_hook = XTredeem_scroll_bar; judge_scroll_bars_hook = XTjudge_scroll_bars; scroll_region_ok = 1; /* we'll scroll partial frames */ char_ins_del_ok = 1; line_ins_del_ok = 1; /* we'll just blt 'em */ fast_clear_end_of_line = 1; /* X does this well */ memory_below_frame = 0; /* we don't remember what scrolls off the bottom */ baud_rate = 19200; x_noop_count = 0; last_tool_bar_item = -1; any_help_event_p = 0; ignore_next_mouse_click_timeout = 0; #ifdef USE_GTK current_count = -1; #endif /* Try to use interrupt input; if we can't, then start polling. */ Fset_input_mode (Qt, Qnil, Qt, Qnil); #ifdef USE_X_TOOLKIT XtToolkitInitialize (); Xt_app_con = XtCreateApplicationContext (); /* Register a converter from strings to pixels, which uses Emacs' color allocation infrastructure. */ XtAppSetTypeConverter (Xt_app_con, XtRString, XtRPixel, cvt_string_to_pixel, cvt_string_to_pixel_args, XtNumber (cvt_string_to_pixel_args), XtCacheByDisplay, cvt_pixel_dtor); XtAppSetFallbackResources (Xt_app_con, Xt_default_resources); /* Install an asynchronous timer that processes Xt timeout events every 0.1s. This is necessary because some widget sets use timeouts internally, for example the LessTif menu bar, or the Xaw3d scroll bar. When Xt timouts aren't processed, these widgets don't behave normally. */ { EMACS_TIME interval; EMACS_SET_SECS_USECS (interval, 0, 100000); start_atimer (ATIMER_CONTINUOUS, interval, x_process_timeouts, 0); } #endif #ifdef USE_TOOLKIT_SCROLL_BARS #ifndef USE_GTK xaw3d_arrow_scroll = False; xaw3d_pick_top = True; #endif #endif /* Note that there is no real way portable across R3/R4 to get the original error handler. */ XSetErrorHandler (x_error_handler); XSetIOErrorHandler (x_io_error_quitter); /* Disable Window Change signals; they are handled by X events. */ #ifdef SIGWINCH signal (SIGWINCH, SIG_DFL); #endif /* SIGWINCH */ signal (SIGPIPE, x_connection_signal); } void syms_of_xterm () { staticpro (&x_error_message_string); x_error_message_string = Qnil; staticpro (&x_display_name_list); x_display_name_list = Qnil; staticpro (&last_mouse_scroll_bar); last_mouse_scroll_bar = Qnil; staticpro (&Qvendor_specific_keysyms); Qvendor_specific_keysyms = intern ("vendor-specific-keysyms"); staticpro (&Qutf_8); Qutf_8 = intern ("utf-8"); staticpro (&Qlatin_1); Qlatin_1 = intern ("latin-1"); staticpro (&last_mouse_press_frame); last_mouse_press_frame = Qnil; DEFVAR_BOOL ("x-use-underline-position-properties", &x_use_underline_position_properties, doc: /* *Non-nil means make use of UNDERLINE_POSITION font properties. nil means ignore them. If you encounter fonts with bogus UNDERLINE_POSITION font properties, for example 7x13 on XFree prior to 4.1, set this to nil. */); x_use_underline_position_properties = 1; DEFVAR_BOOL ("x-mouse-click-focus-ignore-position", &x_mouse_click_focus_ignore_position, doc: /* Non-nil means that a mouse click to focus a frame does not move point. This variable is only used when the window manager requires that you click on a frame to select it (give it focus). In that case, a value of nil, means that the selected window and cursor position changes to reflect the mouse click position, while a non-nil value means that the selected window or cursor position is preserved. */); x_mouse_click_focus_ignore_position = 0; DEFVAR_LISP ("x-toolkit-scroll-bars", &Vx_toolkit_scroll_bars, doc: /* What X toolkit scroll bars Emacs uses. A value of nil means Emacs doesn't use X toolkit scroll bars. Otherwise, value is a symbol describing the X toolkit. */); #ifdef USE_TOOLKIT_SCROLL_BARS #ifdef USE_MOTIF Vx_toolkit_scroll_bars = intern ("motif"); #elif defined HAVE_XAW3D Vx_toolkit_scroll_bars = intern ("xaw3d"); #elif USE_GTK Vx_toolkit_scroll_bars = intern ("gtk"); #else Vx_toolkit_scroll_bars = intern ("xaw"); #endif #else Vx_toolkit_scroll_bars = Qnil; #endif staticpro (&last_mouse_motion_frame); last_mouse_motion_frame = Qnil; Qmodifier_value = intern ("modifier-value"); Qalt = intern ("alt"); Fput (Qalt, Qmodifier_value, make_number (alt_modifier)); Qhyper = intern ("hyper"); Fput (Qhyper, Qmodifier_value, make_number (hyper_modifier)); Qmeta = intern ("meta"); Fput (Qmeta, Qmodifier_value, make_number (meta_modifier)); Qsuper = intern ("super"); Fput (Qsuper, Qmodifier_value, make_number (super_modifier)); DEFVAR_LISP ("x-alt-keysym", &Vx_alt_keysym, doc: /* Which keys Emacs uses for the alt modifier. This should be one of the symbols `alt', `hyper', `meta', `super'. For example, `alt' means use the Alt_L and Alt_R keysyms. The default is nil, which is the same as `alt'. */); Vx_alt_keysym = Qnil; DEFVAR_LISP ("x-hyper-keysym", &Vx_hyper_keysym, doc: /* Which keys Emacs uses for the hyper modifier. This should be one of the symbols `alt', `hyper', `meta', `super'. For example, `hyper' means use the Hyper_L and Hyper_R keysyms. The default is nil, which is the same as `hyper'. */); Vx_hyper_keysym = Qnil; DEFVAR_LISP ("x-meta-keysym", &Vx_meta_keysym, doc: /* Which keys Emacs uses for the meta modifier. This should be one of the symbols `alt', `hyper', `meta', `super'. For example, `meta' means use the Meta_L and Meta_R keysyms. The default is nil, which is the same as `meta'. */); Vx_meta_keysym = Qnil; DEFVAR_LISP ("x-super-keysym", &Vx_super_keysym, doc: /* Which keys Emacs uses for the super modifier. This should be one of the symbols `alt', `hyper', `meta', `super'. For example, `super' means use the Super_L and Super_R keysyms. The default is nil, which is the same as `super'. */); Vx_super_keysym = Qnil; DEFVAR_LISP ("x-keysym-table", &Vx_keysym_table, doc: /* Hash table of character codes indexed by X keysym codes. */); Vx_keysym_table = make_hash_table (Qeql, make_number (900), make_float (DEFAULT_REHASH_SIZE), make_float (DEFAULT_REHASH_THRESHOLD), Qnil, Qnil, Qnil); } #endif /* HAVE_X_WINDOWS */ /* arch-tag: 6d4e4cb7-abc1-4302-9585-d84dcfb09d0f (do not change this comment) */