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emacs/src/w32term.c

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/* Implementation of GUI terminal on the Microsoft W32 API.
Copyright (C) 1989, 93, 94, 95, 96, 1997, 1998, 1999, 2000, 2001
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. */
#include <config.h>
#include <signal.h>
#include <stdio.h>
#include <stdlib.h>
#include "lisp.h"
#include "charset.h"
#include "blockinput.h"
#include "w32heap.h"
#include "w32term.h"
#include "w32bdf.h"
#include <shellapi.h>
#include "systty.h"
#include "systime.h"
#include "atimer.h"
#include "keymap.h"
#include <ctype.h>
#include <errno.h>
#include <setjmp.h>
#include <sys/stat.h>
#include "keyboard.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 "intervals.h"
#include "composite.h"
#include "coding.h"
#define abs(x) ((x) < 0 ? -(x) : (x))
/* Fringe bitmaps. */
static HBITMAP fringe_bmp[MAX_FRINGE_BITMAPS];
/* Non-nil means Emacs uses toolkit scroll bars. */
Lisp_Object Vx_toolkit_scroll_bars;
/* Temporary variables for w32_read_socket. */
static int last_mousemove_x = 0;
static int last_mousemove_y = 0;
/* Define GET_WHEEL_DELTA_WPARAM macro if system headers don't. */
#ifndef GET_WHEEL_DELTA_WPARAM
#define GET_WHEEL_DELTA_WPARAM(wparam) ((short)HIWORD (wparam))
#endif
/* 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;
extern unsigned int msh_mousewheel;
extern void free_frame_menubar ();
extern int w32_codepage_for_font (char *fontname);
extern Cursor w32_load_cursor (LPCTSTR name);
extern glyph_metric *w32_BDF_TextMetric(bdffont *fontp,
unsigned char *text, int dim);
extern Lisp_Object Vwindow_system;
#define x_any_window_to_frame x_window_to_frame
#define x_top_window_to_frame x_window_to_frame
/* This is display since w32 does not support multiple ones. */
struct w32_display_info one_w32_display_info;
struct w32_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 w32_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 w32_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
w32 functions. It is zero while not inside an update.
In that case, the w32 functions assume that `SELECTED_FRAME ()'
is the frame to apply to. */
extern struct frame *updating_frame;
/* This is a frame waiting to be autoraised, within w32_read_socket. */
struct frame *pending_autoraise_frame;
/* The handle of the frame that currently owns the system caret. */
HWND w32_system_caret_hwnd;
int w32_system_caret_height;
int w32_system_caret_x;
int w32_system_caret_y;
int w32_use_visible_system_caret;
/* Flag to enable Unicode output in case users wish to use programs
like Twinbridge on '95 rather than installed system level support
for Far East languages. */
int w32_enable_unicode_output;
DWORD dwWindowsThreadId = 0;
HANDLE hWindowsThread = NULL;
DWORD dwMainThreadId = 0;
HANDLE hMainThread = NULL;
#ifndef SIF_ALL
/* These definitions are new with Windows 95. */
#define SIF_RANGE 0x0001
#define SIF_PAGE 0x0002
#define SIF_POS 0x0004
#define SIF_DISABLENOSCROLL 0x0008
#define SIF_TRACKPOS 0x0010
#define SIF_ALL (SIF_RANGE | SIF_PAGE | SIF_POS | SIF_TRACKPOS)
typedef struct tagSCROLLINFO
{
UINT cbSize;
UINT fMask;
int nMin;
int nMax;
UINT nPage;
int nPos;
int nTrackPos;
} SCROLLINFO, FAR *LPSCROLLINFO;
typedef SCROLLINFO CONST FAR *LPCSCROLLINFO;
#endif /* SIF_ALL */
/* Dynamic linking to new proportional scroll bar functions. */
int (PASCAL *pfnSetScrollInfo) (HWND hwnd, int fnBar, LPSCROLLINFO lpsi, BOOL fRedraw);
BOOL (PASCAL *pfnGetScrollInfo) (HWND hwnd, int fnBar, LPSCROLLINFO lpsi);
int vertical_scroll_bar_min_handle;
int vertical_scroll_bar_top_border;
int vertical_scroll_bar_bottom_border;
int last_scroll_bar_drag_pos;
/* Mouse movement. */
/* Where the mouse was last time we reported a mouse event. */
static RECT last_mouse_glyph;
static Lisp_Object last_mouse_press_frame;
int w32_num_mouse_buttons;
Lisp_Object Vw32_swap_mouse_buttons;
/* Control whether x_raise_frame also sets input focus. */
Lisp_Object Vw32_grab_focus_on_raise;
/* Control whether Caps Lock affects non-ascii characters. */
Lisp_Object Vw32_capslock_is_shiftlock;
/* Control whether right-alt and left-ctrl should be recognized as AltGr. */
Lisp_Object Vw32_recognize_altgr;
/* The scroll bar in which the last motion event occurred.
If the last motion event occurred in a scroll bar, we set this
so w32_mouse_position can know whether to report a scroll bar motion or
an ordinary motion.
If the last motion event didn't occur in a scroll bar, we set this
to Qnil, to tell w32_mouse_position to return an ordinary motion event. */
static Lisp_Object last_mouse_scroll_bar;
static int last_mouse_scroll_bar_pos;
/* This is a hack. We would really prefer that w32_mouse_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 w32_read_socket whenever it really tries to read
events. */
#ifdef __STDC__
static int volatile input_signal_count;
#else
static int input_signal_count;
#endif
extern Lisp_Object Vcommand_line_args, Vsystem_name;
#ifndef USE_CRT_DLL
extern int errno;
#endif
/* A mask of extra modifier bits to put into every keyboard char. */
extern EMACS_INT extra_keyboard_modifiers;
static void x_update_window_end P_ ((struct window *, int, int));
void w32_delete_display P_ ((struct w32_display_info *));
static void w32_handle_tool_bar_click P_ ((struct frame *,
struct input_event *));
void w32_define_cursor P_ ((Window, Cursor));
void x_lower_frame P_ ((struct frame *));
void x_scroll_bar_clear P_ ((struct frame *));
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 w32_initialize P_ ((void));
static void x_font_min_bounds P_ ((XFontStruct *, int *, int *));
int x_compute_min_glyph_bounds P_ ((struct frame *));
static void x_update_end P_ ((struct frame *));
static void w32_frame_up_to_date P_ ((struct frame *));
static void w32_set_terminal_modes P_ ((void));
static void w32_reset_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 w32_display_info *,
struct frame *));
static void w32_frame_rehighlight P_ ((struct frame *));
static void x_frame_rehighlight P_ ((struct w32_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 w32_clip_to_row P_ ((struct window *, struct glyph_row *, HDC));
static Lisp_Object Qvendor_specific_keysyms;
/***********************************************************************
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 */
void
XChangeGC (void * ignore, XGCValues* gc, unsigned long mask,
XGCValues *xgcv)
{
if (mask & GCForeground)
gc->foreground = xgcv->foreground;
if (mask & GCBackground)
gc->background = xgcv->background;
if (mask & GCFont)
gc->font = xgcv->font;
}
XGCValues *XCreateGC (void * ignore, Window window, unsigned long mask,
XGCValues *xgcv)
{
XGCValues *gc = (XGCValues *) xmalloc (sizeof (XGCValues));
bzero (gc, sizeof (XGCValues));
XChangeGC (ignore, gc, mask, xgcv);
return gc;
}
void
XGetGCValues (void* ignore, XGCValues *gc,
unsigned long mask, XGCValues *xgcv)
{
XChangeGC (ignore, xgcv, mask, gc);
}
static void
w32_set_clip_rectangle (HDC hdc, RECT *rect)
{
if (rect)
{
HRGN clip_region = CreateRectRgnIndirect (rect);
SelectClipRgn (hdc, clip_region);
DeleteObject (clip_region);
}
else
SelectClipRgn (hdc, NULL);
}
/* Draw a hollow rectangle at the specified position. */
void
w32_draw_rectangle (HDC hdc, XGCValues *gc, int x, int y,
int width, int height)
{
HBRUSH hb, oldhb;
HPEN hp, oldhp;
hb = CreateSolidBrush (gc->background);
hp = CreatePen (PS_SOLID, 0, gc->foreground);
oldhb = SelectObject (hdc, hb);
oldhp = SelectObject (hdc, hp);
Rectangle (hdc, x, y, x + width, y + height);
SelectObject (hdc, oldhb);
SelectObject (hdc, oldhp);
DeleteObject (hb);
DeleteObject (hp);
}
/* Draw a filled rectangle at the specified position. */
void
w32_fill_rect (f, hdc, pix, lprect)
FRAME_PTR f;
HDC hdc;
COLORREF pix;
RECT * lprect;
{
HBRUSH hb;
hb = CreateSolidBrush (pix);
FillRect (hdc, lprect, hb);
DeleteObject (hb);
}
void
w32_clear_window (f)
FRAME_PTR f;
{
RECT rect;
HDC hdc = get_frame_dc (f);
/* Under certain conditions, this can be called at startup with
a console frame pointer before the GUI frame is created. An HDC
of 0 indicates this. */
if (hdc)
{
GetClientRect (FRAME_W32_WINDOW (f), &rect);
w32_clear_rect (f, hdc, &rect);
}
release_frame_dc (f, hdc);
}
/***********************************************************************
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. */
static void
x_update_begin (f)
struct frame *f;
{
struct w32_display_info *display_info = FRAME_W32_DISPLAY_INFO (f);
if (! FRAME_W32_P (f))
return;
/* Regenerate display palette before drawing if list of requested
colors has changed. */
if (display_info->regen_palette)
{
w32_regenerate_palette (f);
display_info->regen_palette = FALSE;
}
}
/* 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 w32_display_info *display_info = FRAME_W32_DISPLAY_INFO (f);
/* Hide the system caret during an update. */
if (w32_use_visible_system_caret && w32_system_caret_hwnd)
{
SendMessage (w32_system_caret_hwnd, WM_EMACS_HIDE_CARET, 0, 0);
}
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
w32_draw_vertical_window_border (w, x, y0, y1)
struct window *w;
int x, y0, y1;
{
struct frame *f = XFRAME (WINDOW_FRAME (w));
RECT r;
HDC hdc;
r.left = x;
r.right = x + 1;
r.top = y0;
r.bottom = y1;
hdc = get_frame_dc (f);
w32_fill_rect (f, hdc, FRAME_FOREGROUND_PIXEL (f), &r);
release_frame_dc (f, hdc);
}
/* 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 w32_display_info *dpyinfo = FRAME_W32_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);
x_draw_vertical_border (w);
draw_window_fringes (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;
}
/* Unhide the caret. This won't actually show the cursor, unless it
was visible before the corresponding call to HideCaret in
x_update_window_begin. */
if (w32_use_visible_system_caret && w32_system_caret_hwnd)
{
SendMessage (w32_system_caret_hwnd, WM_EMACS_SHOW_CARET, 0, 0);
}
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;
{
if (! FRAME_W32_P (f))
return;
/* Mouse highlight may be displayed again. */
FRAME_W32_DISPLAY_INFO (f)->mouse_face_defer = 0;
}
/* 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
w32_frame_up_to_date (f)
struct frame *f;
{
if (FRAME_W32_P (f))
{
struct w32_display_info *dpyinfo = FRAME_W32_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 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;
{
HDC hdc = get_frame_dc (f);
w32_clear_area (f, hdc, 0, y, width, height);
w32_clear_area (f, hdc, FRAME_PIXEL_WIDTH (f) - width,
y, width, height);
release_frame_dc (f, hdc);
}
UNBLOCK_INPUT;
}
}
/* Draw the bitmap WHICH in one of the left or right fringes of
window W. ROW is the glyph row for which to display the bitmap; it
determines the vertical position at which the bitmap has to be
drawn. */
static void
w32_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));
HDC hdc;
struct face *face = p->face;
int rowY;
hdc = get_frame_dc (f);
/* 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;
w32_clip_to_row (w, row, hdc);
row->y = oldY;
row->visible_height = oldVH;
}
else
w32_clip_to_row (w, row, hdc);
if (p->bx >= 0 && !p->overlay_p)
{
w32_fill_area (f, hdc, face->background,
p->bx, p->by, p->nx, p->ny);
}
if (p->which)
{
HBITMAP pixmap = fringe_bmp[p->which];
HDC compat_hdc;
HANDLE horig_obj;
compat_hdc = CreateCompatibleDC (hdc);
SaveDC (hdc);
horig_obj = SelectObject (compat_hdc, pixmap);
/* Paint overlays transparently. */
if (p->overlay_p)
{
HBRUSH h_brush, h_orig_brush;
SetTextColor (hdc, BLACK_PIX_DEFAULT (f));
SetBkColor (hdc, WHITE_PIX_DEFAULT (f));
h_brush = CreateSolidBrush (face->foreground);
h_orig_brush = SelectObject (hdc, h_brush);
BitBlt (hdc, p->x, p->y, p->wd, p->h,
compat_hdc, 0, p->dh,
DSTINVERT);
BitBlt (hdc, p->x, p->y, p->wd, p->h,
compat_hdc, 0, p->dh,
0x2E064A);
BitBlt (hdc, p->x, p->y, p->wd, p->h,
compat_hdc, 0, p->dh,
DSTINVERT);
SelectObject (hdc, h_orig_brush);
DeleteObject (h_brush);
}
else
{
SetTextColor (hdc, face->background);
SetBkColor (hdc, (p->cursor_p
? f->output_data.w32->cursor_pixel
: face->foreground));
BitBlt (hdc, p->x, p->y, p->wd, p->h,
compat_hdc, 0, p->dh,
SRCCOPY);
}
SelectObject (compat_hdc, horig_obj);
DeleteDC (compat_hdc);
RestoreDC (hdc, -1);
}
w32_set_clip_rectangle (hdc, NULL);
release_frame_dc (f, hdc);
}
static void
w32_define_fringe_bitmap (which, bits, h, wd)
int which;
unsigned short *bits;
int h, wd;
{
fringe_bmp[which] = CreateBitmap (wd, h, 1, 1, bits);
}
static void
w32_destroy_fringe_bitmap (which)
int which;
{
if (fringe_bmp[which])
DeleteObject (fringe_bmp[which]);
fringe_bmp[which] = 0;
}
/* This is called when starting Emacs and when restarting after
suspend. When starting Emacs, no window is mapped. And nothing
must be done to Emacs's own window if it is suspended (though that
rarely happens). */
static void
w32_set_terminal_modes (void)
{
}
/* This is called when exiting or suspending Emacs. Exiting will make
the W32 windows go away, and suspending requires no action. */
static void
w32_reset_terminal_modes (void)
{
}
/***********************************************************************
Display Iterator
***********************************************************************/
/* Function prototypes of this page. */
static XCharStruct *w32_per_char_metric P_ ((XFontStruct *,
wchar_t *, int));
static int w32_encode_char P_ ((int, wchar_t *, struct font_info *, int *));
/* Get metrics of character CHAR2B in FONT. Value is always non-null.
If CHAR2B is not contained in FONT, the font's default character
metric is returned. */
static int
w32_bdf_per_char_metric (font, char2b, dim, pcm)
XFontStruct *font;
wchar_t *char2b;
int dim;
XCharStruct * pcm;
{
glyph_metric * bdf_metric;
char buf[2];
if (dim == 1)
buf[0] = (char)(*char2b);
else
{
buf[0] = XCHAR2B_BYTE1 (char2b);
buf[1] = XCHAR2B_BYTE2 (char2b);
}
bdf_metric = w32_BDF_TextMetric (font->bdf, buf, dim);
if (bdf_metric)
{
pcm->width = bdf_metric->dwidth;
pcm->lbearing = bdf_metric->bbox;
pcm->rbearing = bdf_metric->dwidth
- (bdf_metric->bbox + bdf_metric->bbw);
pcm->ascent = bdf_metric->bboy + bdf_metric->bbh;
pcm->descent = -bdf_metric->bboy;
return 1;
}
return 0;
}
static int
w32_native_per_char_metric (font, char2b, font_type, pcm)
XFontStruct *font;
wchar_t *char2b;
enum w32_char_font_type font_type;
XCharStruct * pcm;
{
HDC hdc = GetDC (NULL);
HFONT old_font;
BOOL retval = FALSE;
xassert (font && char2b);
xassert (font->hfont);
xassert (font_type == UNICODE_FONT || font_type == ANSI_FONT);
old_font = SelectObject (hdc, font->hfont);
if ((font->tm.tmPitchAndFamily & TMPF_TRUETYPE) != 0)
{
ABC char_widths;
if (font_type == UNICODE_FONT)
retval = GetCharABCWidthsW (hdc, *char2b, *char2b, &char_widths);
else
retval = GetCharABCWidthsA (hdc, *char2b, *char2b, &char_widths);
if (retval)
{
#if 0
/* Disabled until we can find a way to get the right results
on all versions of Windows. */
/* Don't trust the ABC widths. For synthesized fonts they are
wrong, and so is the result of GetCharWidth()! */
int real_width;
GetCharWidth (hdc, *char2b, *char2b, &real_width);
#endif
pcm->width = char_widths.abcA + char_widths.abcB + char_widths.abcC;
#if 0
/* As far as I can tell, this is the best way to determine what
ExtTextOut will do with the broken font. */
if (pcm->width != real_width)
pcm->width = (pcm->width + real_width) / 2;
#endif
pcm->lbearing = char_widths.abcA;
pcm->rbearing = char_widths.abcA + char_widths.abcB;
pcm->ascent = FONT_BASE (font);
pcm->descent = FONT_DESCENT (font);
}
}
if (!retval)
{
/* Either font is not a True-type font, or GetCharABCWidthsW
failed (it is not supported on Windows 9x for instance), so we
can't determine the full info we would like. All is not lost
though - we can call GetTextExtentPoint32 to get rbearing and
deduce width based on the font's per-string overhang. lbearing
is assumed to be zero. */
/* TODO: Some Thai characters (and other composites if Windows
supports them) do have lbearing, and report their total width
as zero. Need some way of handling them when
GetCharABCWidthsW fails. */
SIZE sz;
if (font_type == UNICODE_FONT)
retval = GetTextExtentPoint32W (hdc, char2b, 1, &sz);
else
retval = GetTextExtentPoint32A (hdc, (char*)char2b, 1, &sz);
if (retval)
{
pcm->width = sz.cx - font->tm.tmOverhang;
pcm->rbearing = sz.cx;
pcm->lbearing = 0;
pcm->ascent = FONT_BASE (font);
pcm->descent = FONT_DESCENT (font);
}
}
if (pcm->width == 0 && (pcm->rbearing - pcm->lbearing) == 0)
{
retval = FALSE;
}
SelectObject (hdc, old_font);
ReleaseDC (NULL, hdc);
return retval;
}
static XCharStruct *
w32_per_char_metric (font, char2b, font_type)
XFontStruct *font;
wchar_t *char2b;
int /* enum w32_char_font_type */ font_type;
{
/* The result metric information. */
XCharStruct *pcm;
BOOL retval;
xassert (font && char2b);
/* TODO: This function is currently called through the RIF, and in
some cases font_type is UNKNOWN_FONT. We currently allow the
cached metrics to be used, which seems to work, but in cases
where font_type is UNKNOWN_FONT, we probably haven't encoded
char2b appropriately. All callers need checking to see what they
are passing. This is most likely to affect variable width fonts
outside the Latin-1 range, particularly in languages like Thai
that rely on rbearing and lbearing to provide composition. I
don't think that is working currently anyway, but we don't seem
to have anyone testing such languages on Windows. */
/* Handle the common cases quickly. */
if (!font->bdf && font->per_char == NULL)
/* TODO: determine whether char2b exists in font? */
return &font->max_bounds;
else if (!font->bdf && *char2b < 128)
return &font->per_char[*char2b];
xassert (font_type != UNKNOWN_FONT);
pcm = &font->scratch;
if (font_type == BDF_1D_FONT)
retval = w32_bdf_per_char_metric (font, char2b, 1, pcm);
else if (font_type == BDF_2D_FONT)
retval = w32_bdf_per_char_metric (font, char2b, 2, pcm);
else
retval = w32_native_per_char_metric (font, char2b, font_type, pcm);
if (retval)
return pcm;
return NULL;
}
void
w32_cache_char_metrics (font)
XFontStruct *font;
{
wchar_t char2b = L'x';
/* Cache char metrics for the common cases. */
if (font->bdf)
{
/* TODO: determine whether font is fixed-pitch. */
if (!w32_bdf_per_char_metric (font, &char2b, 1, &font->max_bounds))
{
/* Use the font width and height as max bounds, as not all BDF
fonts contain the letter 'x'. */
font->max_bounds.width = FONT_MAX_WIDTH (font);
font->max_bounds.lbearing = -font->bdf->llx;
font->max_bounds.rbearing = FONT_MAX_WIDTH (font) - font->bdf->urx;
font->max_bounds.ascent = FONT_BASE (font);
font->max_bounds.descent = FONT_DESCENT (font);
}
}
else
{
if (((font->tm.tmPitchAndFamily & TMPF_FIXED_PITCH) != 0)
/* Some fonts (eg DBCS fonts) are marked as fixed width even
though they contain characters of different widths. */
|| (font->tm.tmMaxCharWidth != font->tm.tmAveCharWidth))
{
/* Font is not fixed pitch, so cache per_char info for the
ASCII characters. It would be much more work, and probably
not worth it, to cache other chars, since we may change
between using Unicode and ANSI text drawing functions at
run-time. */
int i;
font->per_char = xmalloc (128 * sizeof(XCharStruct));
for (i = 0; i < 128; i++)
{
char2b = i;
w32_native_per_char_metric (font, &char2b, ANSI_FONT,
&font->per_char[i]);
}
}
else
w32_native_per_char_metric (font, &char2b, ANSI_FONT,
&font->max_bounds);
}
}
/* Determine if a font is double byte. */
int w32_font_is_double_byte (XFontStruct *font)
{
return font->double_byte_p;
}
static BOOL
w32_use_unicode_for_codepage (codepage)
int codepage;
{
/* If the current codepage is supported, use Unicode for output. */
return (w32_enable_unicode_output
&& codepage != CP_8BIT
&& (codepage == CP_UNICODE || IsValidCodePage (codepage)));
}
/* Encode CHAR2B using encoding information from FONT_INFO. CHAR2B is
the two-byte form of C. Encoding is returned in *CHAR2B. */
static int /* enum w32_char_font_type */
w32_encode_char (c, char2b, font_info, two_byte_p)
int c;
wchar_t *char2b;
struct font_info *font_info;
int * two_byte_p;
{
int charset = CHAR_CHARSET (c);
int codepage;
int unicode_p = 0;
int internal_two_byte_p = 0;
XFontStruct *font = font_info->font;
internal_two_byte_p = w32_font_is_double_byte (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;
if (CHARSET_DIMENSION (charset) == 1)
{
ccl->reg[0] = charset;
ccl->reg[1] = XCHAR2B_BYTE2 (char2b);
ccl->reg[2] = -1;
}
else
{
ccl->reg[0] = charset;
ccl->reg[1] = XCHAR2B_BYTE1 (char2b);
ccl->reg[2] = XCHAR2B_BYTE2 (char2b);
}
ccl_driver (ccl, NULL, NULL, 0, 0, NULL);
/* We assume that MSBs are appropriately set/reset by CCL
program. */
if (!internal_two_byte_p) /* 1-byte font */
STORE_XCHAR2B (char2b, 0, ccl->reg[1]);
else
STORE_XCHAR2B (char2b, ccl->reg[1], 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)
STORE_XCHAR2B (char2b, XCHAR2B_BYTE1 (char2b) | 0x80, XCHAR2B_BYTE2 (char2b));
if (enc == 1 || enc == 3
|| (enc == 4 && CHARSET_DIMENSION (charset) == 1))
STORE_XCHAR2B (char2b, XCHAR2B_BYTE1 (char2b), XCHAR2B_BYTE2 (char2b) | 0x80);
else if (enc == 4)
{
int sjis1, sjis2;
ENCODE_SJIS (XCHAR2B_BYTE1 (char2b), XCHAR2B_BYTE2 (char2b),
sjis1, sjis2);
STORE_XCHAR2B (char2b, sjis1, sjis2);
}
}
codepage = font_info->codepage;
/* If charset is not ASCII or Latin-1, may need to move it into
Unicode space. */
if ( font && !font->bdf && w32_use_unicode_for_codepage (codepage)
&& charset != CHARSET_ASCII && charset != charset_latin_iso8859_1
&& charset != CHARSET_8_BIT_CONTROL && charset != CHARSET_8_BIT_GRAPHIC)
{
char temp[3];
temp[0] = XCHAR2B_BYTE1 (char2b);
temp[1] = XCHAR2B_BYTE2 (char2b);
temp[2] = '\0';
if (codepage != CP_UNICODE)
{
if (temp[0])
MultiByteToWideChar (codepage, 0, temp, 2, char2b, 1);
else
MultiByteToWideChar (codepage, 0, temp+1, 1, char2b, 1);
}
unicode_p = 1;
internal_two_byte_p = 1;
}
if (two_byte_p)
*two_byte_p = internal_two_byte_p;
if (!font)
return UNKNOWN_FONT;
else if (font->bdf && CHARSET_DIMENSION (charset) == 1)
return BDF_1D_FONT;
else if (font->bdf)
return BDF_2D_FONT;
else if (unicode_p)
return UNICODE_FONT;
else
return ANSI_FONT;
}
/***********************************************************************
Glyph display
***********************************************************************/
/* Encapsulate the different ways of displaying text under W32. */
static void
w32_text_out (s, x, y,chars,nchars)
struct glyph_string * s;
int x, y;
wchar_t * chars;
int nchars;
{
int charset_dim = w32_font_is_double_byte (s->font) ? 2 : 1;
if (s->font->bdf)
w32_BDF_TextOut (s->font->bdf, s->hdc,
x, y, (char *) chars, charset_dim,
nchars * charset_dim, 0);
else if (s->first_glyph->font_type == UNICODE_FONT)
ExtTextOutW (s->hdc, x, y, 0, NULL, chars, nchars, NULL);
else
ExtTextOutA (s->hdc, x, y, 0, NULL, (char *) chars,
nchars * charset_dim, NULL);
}
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_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 w32_alloc_lighter_color (struct frame *, COLORREF *, double, int);
static void w32_setup_relief_color P_ ((struct frame *, struct relief *,
double, int, COLORREF));
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 w32_draw_image_foreground_1 P_ ((struct glyph_string *, HBITMAP));
static void x_clear_glyph_string_rect P_ ((struct glyph_string *, int,
int, int, int));
static void w32_draw_relief_rect P_ ((struct frame *, int, int, int, int,
int, int, int, int, int, int,
RECT *));
static void w32_draw_box_rect P_ ((struct glyph_string *, int, int, int, int,
int, int, int, RECT *));
#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.w32->cursor_gc;
else
{
/* Cursor on non-default face: must merge. */
XGCValues xgcv;
unsigned long mask;
xgcv.background = s->f->output_data.w32->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.w32->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;
mask = GCForeground | GCBackground | GCFont;
if (FRAME_W32_DISPLAY_INFO (s->f)->scratch_cursor_gc)
XChangeGC (NULL, FRAME_W32_DISPLAY_INFO (s->f)->scratch_cursor_gc,
mask, &xgcv);
else
FRAME_W32_DISPLAY_INFO (s->f)->scratch_cursor_gc
= XCreateGC (NULL, s->window, mask, &xgcv);
s->gc = FRAME_W32_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_W32_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;
mask = GCForeground | GCBackground | GCFont;
if (FRAME_W32_DISPLAY_INFO (s->f)->scratch_cursor_gc)
XChangeGC (NULL, FRAME_W32_DISPLAY_INFO (s->f)->scratch_cursor_gc,
mask, &xgcv);
else
FRAME_W32_DISPLAY_INFO (s->f)->scratch_cursor_gc
= XCreateGC (NULL, s->window, mask, &xgcv);
s->gc = FRAME_W32_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;
{
RECT r;
get_glyph_string_clip_rect (s, &r);
w32_set_clip_rectangle (s->hdc, &r);
}
/* 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
w32_compute_glyph_string_overhangs (s)
struct glyph_string *s;
{
/* TODO: Windows does not appear to have a method for
getting this info without getting the ABC widths for each
individual character and working it out manually. */
}
static void
w32_get_glyph_overhangs (glyph, f, left, right)
struct glyph *glyph;
struct frame *f;
int *left, *right;
{
HDC hdc = get_frame_dc (f);
/* Convert to unicode! */
x_get_glyph_overhangs (glyph, f, left, right);
release_frame_dc (f, hdc);
}
/* 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;
{
int real_x = x;
int real_y = y;
int real_w = w;
int real_h = h;
#if 0
/* Take clipping into account. */
if (s->gc->clip_mask == Rect)
{
real_x = max (real_x, s->gc->clip_rectangle.left);
real_y = max (real_y, s->gc->clip_rectangle.top);
real_w = min (real_w, s->gc->clip_rectangle.right
- s->gc->clip_rectangle.left);
real_h = min (real_h, s->gc->clip_rectangle.bottom
- s->gc->clip_rectangle.top);
}
#endif
w32_fill_area (s->f, s->hdc, s->gc->background, real_x, real_y,
real_w, real_h);
}
/* 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 0 /* TODO: stipple */
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
#endif
if (FONT_HEIGHT (s->font) < s->height - 2 * box_line_width
|| s->font_not_found_p
|| s->extends_to_end_of_line_p
|| s->font->bdf
|| 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;
HFONT old_font;
/* 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;
if (s->for_overlaps_p || (s->background_filled_p && s->hl != DRAW_CURSOR))
SetBkMode (s->hdc, TRANSPARENT);
else
SetBkMode (s->hdc, OPAQUE);
SetTextColor (s->hdc, s->gc->foreground);
SetBkColor (s->hdc, s->gc->background);
SetTextAlign (s->hdc, TA_BASELINE | TA_LEFT);
if (s->font && s->font->hfont)
old_font = SelectObject (s->hdc, s->font->hfont);
/* 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;
w32_draw_rectangle (s->hdc, 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] = XCHAR2B_BYTE2 (&s->char2b[i]);
/* Draw text with TextOut and friends. */
w32_text_out (s, x, s->ybase - boff, s->char2b, s->nchars);
if (s->face->overstrike)
{
/* For overstriking (to simulate bold-face), draw the
characters again shifted to the right by one pixel. */
w32_text_out (s, x + 1, s->ybase - boff, s->char2b, s->nchars);
}
}
if (s->font && s->font->hfont)
SelectObject (s->hdc, old_font);
}
/* Draw the foreground of composite glyph string S. */
static void
x_draw_composite_glyph_string_foreground (s)
struct glyph_string *s;
{
int i, x;
HFONT old_font;
/* 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. */
SetTextColor (s->hdc, s->gc->foreground);
SetBkColor (s->hdc, s->gc->background);
SetBkMode (s->hdc, TRANSPARENT);
SetTextAlign (s->hdc, TA_BASELINE | TA_LEFT);
if (s->font && s->font->hfont)
old_font = SelectObject (s->hdc, s->font->hfont);
/* 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)
w32_draw_rectangle (s->hdc, s->gc, x, s->y, s->width - 1,
s->height - 1);
}
else
{
for (i = 0; i < s->nchars; i++, ++s->gidx)
{
w32_text_out (s, x + s->cmp->offsets[s->gidx * 2],
s->ybase - s->cmp->offsets[s->gidx * 2 + 1],
s->char2b + i, 1);
if (s->face->overstrike)
w32_text_out (s, x + s->cmp->offsets[s->gidx * 2] + 1,
s->ybase - s->cmp->offsets[s->gidx * 2 + 1],
s->char2b + i, 1);
}
}
if (s->font && s->font->hfont)
SelectObject (s->hdc, old_font);
}
/* 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 0-255) have to
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 187
/* Allocate a color which is lighter or darker than *COLOR by FACTOR
or DELTA. Try a color with RGB values multiplied by FACTOR first.
If this produces the same color as COLOR, try a color where all RGB
values have DELTA added. Return the allocated color in *COLOR.
DISPLAY is the X display, CMAP is the colormap to operate on.
Value is non-zero if successful. */
static int
w32_alloc_lighter_color (f, color, factor, delta)
struct frame *f;
COLORREF *color;
double factor;
int delta;
{
COLORREF new;
long bright;
/* On Windows, RGB values are 0-255, not 0-65535, so scale delta. */
delta /= 256;
/* Change RGB values by specified FACTOR. Avoid overflow! */
xassert (factor >= 0);
new = PALETTERGB (min (0xff, factor * GetRValue (*color)),
min (0xff, factor * GetGValue (*color)),
min (0xff, factor * GetBValue (*color)));
/* Calculate brightness of COLOR. */
bright = (2 * GetRValue (*color) + 3 * GetGValue (*color)
+ GetBValue (*color)) / 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 = PALETTERGB (max (0, min (0xff, min_delta - GetRValue (*color))),
max (0, min (0xff, min_delta - GetGValue (*color))),
max (0, min (0xff, min_delta - GetBValue (*color))));
else
new = PALETTERGB (max (0, min (0xff, min_delta + GetRValue (*color))),
max (0, min (0xff, min_delta + GetGValue (*color))),
max (0, min (0xff, min_delta + GetBValue (*color))));
}
if (new == *color)
new = PALETTERGB (max (0, min (0xff, delta + GetRValue (*color))),
max (0, min (0xff, delta + GetGValue (*color))),
max (0, min (0xff, delta + GetBValue (*color))));
/* TODO: Map to palette and retry with delta if same? */
/* TODO: Free colors (if using palette)? */
if (new == *color)
return 0;
*color = new;
return 1;
}
/* 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
w32_setup_relief_color (f, relief, factor, delta, default_pixel)
struct frame *f;
struct relief *relief;
double factor;
int delta;
COLORREF default_pixel;
{
XGCValues xgcv;
struct w32_output *di = f->output_data.w32;
unsigned long mask = GCForeground;
COLORREF pixel;
COLORREF background = di->relief_background;
struct w32_display_info *dpyinfo = FRAME_W32_DISPLAY_INFO (f);
/* TODO: Free colors (if using palette)? */
/* Allocate new color. */
xgcv.foreground = default_pixel;
pixel = background;
if (w32_alloc_lighter_color (f, &pixel, factor, delta))
{
relief->allocated_p = 1;
xgcv.foreground = relief->pixel = pixel;
}
if (relief->gc == 0)
{
#if 0 /* TODO: stipple */
xgcv.stipple = dpyinfo->gray;
mask |= GCStipple;
#endif
relief->gc = XCreateGC (NULL, FRAME_W32_WINDOW (f), mask, &xgcv);
}
else
XChangeGC (NULL, 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 w32_output *di = s->f->output_data.w32;
COLORREF 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
color = s->gc->background;
if (di->white_relief.gc == 0
|| color != di->relief_background)
{
di->relief_background = color;
w32_setup_relief_color (s->f, &di->white_relief, 1.2, 0x8000,
WHITE_PIX_DEFAULT (s->f));
w32_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
w32_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;
RECT *clip_rect;
{
int i;
XGCValues gc;
HDC hdc = get_frame_dc (f);
if (raised_p)
gc.foreground = f->output_data.w32->white_relief.gc->foreground;
else
gc.foreground = f->output_data.w32->black_relief.gc->foreground;
w32_set_clip_rectangle (hdc, clip_rect);
/* Top. */
if (top_p)
for (i = 0; i < width; ++i)
w32_fill_area (f, hdc, gc.foreground,
left_x + i * left_p, top_y + i,
right_x - left_x - i * (left_p + right_p ) + 1, 1);
/* Left. */
if (left_p)
for (i = 0; i < width; ++i)
w32_fill_area (f, hdc, gc.foreground,
left_x + i, top_y + i, 1,
bottom_y - top_y - 2 * i + 1);
if (raised_p)
gc.foreground = f->output_data.w32->black_relief.gc->foreground;
else
gc.foreground = f->output_data.w32->white_relief.gc->foreground;
/* Bottom. */
if (bot_p)
for (i = 0; i < width; ++i)
w32_fill_area (f, hdc, gc.foreground,
left_x + i * left_p, bottom_y - i,
right_x - left_x - i * (left_p + right_p) + 1, 1);
/* Right. */
if (right_p)
for (i = 0; i < width; ++i)
w32_fill_area (f, hdc, gc.foreground,
right_x - i, top_y + i + 1, 1,
bottom_y - top_y - 2 * i - 1);
w32_set_clip_rectangle (hdc, NULL);
release_frame_dc (f, hdc);
}
/* 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
w32_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;
RECT *clip_rect;
{
w32_set_clip_rectangle (s->hdc, clip_rect);
/* Top. */
w32_fill_area (s->f, s->hdc, s->face->box_color,
left_x, top_y, right_x - left_x + 1, width);
/* Left. */
if (left_p)
{
w32_fill_area (s->f, s->hdc, s->face->box_color,
left_x, top_y, width, bottom_y - top_y + 1);
}
/* Bottom. */
w32_fill_area (s->f, s->hdc, s->face->box_color,
left_x, bottom_y - width + 1, right_x - left_x + 1, width);
/* Right. */
if (right_p)
{
w32_fill_area (s->f, s->hdc, s->face->box_color,
right_x - width + 1, top_y, width, bottom_y - top_y + 1);
}
w32_set_clip_rectangle (s->hdc, NULL);
}
/* 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;
RECT clip_rect;
last_x = window_box_right (s->w, s->area);
if (s->row->full_width_p
&& !s->w->pseudo_window_p)
{
last_x += WINDOW_RIGHT_SCROLL_BAR_AREA_WIDTH (s->w);
if (s->area != RIGHT_MARGIN_AREA
|| WINDOW_HAS_FRINGES_OUTSIDE_MARGINS (s->w))
last_x += WINDOW_RIGHT_FRINGE_WIDTH (s->w);
}
/* 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)
w32_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);
w32_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;
SaveDC (s->hdc);
if (s->img->pixmap)
{
HDC compat_hdc = CreateCompatibleDC (s->hdc);
HBRUSH fg_brush = CreateSolidBrush (s->gc->foreground);
HBRUSH orig_brush = SelectObject (s->hdc, fg_brush);
HGDIOBJ orig_obj = SelectObject (compat_hdc, s->img->pixmap);
SetBkColor (compat_hdc, RGB (255, 255, 255));
SetTextColor (s->hdc, RGB (0, 0, 0));
x_set_glyph_string_clipping (s);
if (s->img->mask)
{
HDC mask_dc = CreateCompatibleDC (s->hdc);
HGDIOBJ mask_orig_obj = SelectObject (mask_dc, s->img->mask);
SetTextColor (s->hdc, RGB (255, 255, 255));
SetBkColor (s->hdc, RGB (0, 0, 0));
BitBlt (s->hdc, x, y, s->slice.width, s->slice.height,
compat_hdc, s->slice.x, s->slice.y, SRCINVERT);
BitBlt (s->hdc, x, y, s->slice.width, s->slice.height,
mask_dc, s->slice.x, s->slice.y, SRCAND);
BitBlt (s->hdc, x, y, s->slice.width, s->slice.height,
compat_hdc, s->slice.x, s->slice.y, SRCINVERT);
SelectObject (mask_dc, mask_orig_obj);
DeleteDC (mask_dc);
}
else
{
SetTextColor (s->hdc, s->gc->foreground);
SetBkColor (s->hdc, s->gc->background);
BitBlt (s->hdc, x, y, s->slice.width, s->slice.height,
compat_hdc, s->slice.x, s->slice.y, SRCCOPY);
/* 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;
w32_draw_rectangle (s->hdc, s->gc, x - r, y - r ,
s->slice.width + r*2 - 1,
s->slice.height + r*2 - 1);
}
}
w32_set_clip_rectangle (s->hdc, NULL);
SelectObject (s->hdc, orig_brush);
DeleteObject (fg_brush);
SelectObject (compat_hdc, orig_obj);
DeleteDC (compat_hdc);
}
else
w32_draw_rectangle (s->hdc, s->gc, x, y,
s->slice.width - 1, s->slice.height - 1);
RestoreDC (s->hdc ,-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;
RECT 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);
w32_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
w32_draw_image_foreground_1 (s, pixmap)
struct glyph_string *s;
HBITMAP pixmap;
{
HDC hdc = CreateCompatibleDC (s->hdc);
HGDIOBJ orig_hdc_obj = SelectObject (hdc, 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)
{
HDC compat_hdc = CreateCompatibleDC (hdc);
HBRUSH fg_brush = CreateSolidBrush (s->gc->foreground);
HBRUSH orig_brush = SelectObject (hdc, fg_brush);
HGDIOBJ orig_obj = SelectObject (compat_hdc, s->img->pixmap);
if (s->img->mask)
{
HDC mask_dc = CreateCompatibleDC (hdc);
HGDIOBJ mask_orig_obj = SelectObject (mask_dc, s->img->mask);
SetTextColor (hdc, RGB (0, 0, 0));
SetBkColor (hdc, RGB (255, 255, 255));
BitBlt (hdc, x, y, s->slice.width, s->slice.height,
compat_hdc, s->slice.x, s->slice.y, SRCINVERT);
BitBlt (hdc, x, y, s->slice.width, s->slice.height,
mask_dc, s->slice.x, s->slice.y, SRCAND);
BitBlt (hdc, x, y, s->slice.width, s->slice.height,
compat_hdc, s->slice.x, s->slice.y, SRCINVERT);
SelectObject (mask_dc, mask_orig_obj);
DeleteDC (mask_dc);
}
else
{
SetTextColor (hdc, s->gc->foreground);
SetBkColor (hdc, s->gc->background);
BitBlt (hdc, x, y, s->slice.width, s->slice.height,
compat_hdc, s->slice.x, s->slice.y, SRCCOPY);
/* 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;
w32_draw_rectangle (hdc, s->gc, x - r, y - r,
s->slice.width + r*2 - 1,
s->slice.height + r*2 - 1);
}
}
SelectObject (hdc, orig_brush);
DeleteObject (fg_brush);
SelectObject (compat_hdc, orig_obj);
DeleteDC (compat_hdc);
}
else
w32_draw_rectangle (hdc, s->gc, x, y,
s->slice.width - 1, s->slice.height - 1);
SelectObject (hdc, orig_hdc_obj);
DeleteDC (hdc);
}
/* 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 0 /* TODO: stipple */
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
#endif
x_clear_glyph_string_rect (s, x, y, w, h);
}
/* Draw image glyph string S.
s->y
s->x +-------------------------
| s->face->box
|
| +-------------------------
| | s->img->vmargin
| |
| | +-------------------
| | | the image
*/
static void
x_draw_image_glyph_string (s)
struct glyph_string *s;
{
int x, y;
int box_line_hwidth = abs (s->face->box_line_width);
int box_line_vwidth = max (s->face->box_line_width, 0);
int height;
HBITMAP pixmap = 0;
height = s->height - 2 * 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)
{
x = s->x;
if (s->first_glyph->left_box_line_p
&& s->slice.x == 0)
x += box_line_hwidth;
y = s->y;
if (s->slice.y == 0)
y += box_line_vwidth;
#if 0 /* TODO: figure out if we need to do this on Windows. */
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
#endif
x_draw_glyph_string_bg_rect (s, x, y, s->background_width, height);
s->background_filled_p = 1;
}
/* Draw the foreground. */
if (pixmap != 0)
{
w32_draw_image_foreground_1 (s, pixmap);
x_set_glyph_string_clipping (s);
{
HDC compat_hdc = CreateCompatibleDC (s->hdc);
HBRUSH fg_brush = CreateSolidBrush (s->gc->foreground);
HBRUSH orig_brush = SelectObject (s->hdc, fg_brush);
HGDIOBJ orig_obj = SelectObject (compat_hdc, pixmap);
SetTextColor (s->hdc, s->gc->foreground);
SetBkColor (s->hdc, s->gc->background);
BitBlt (s->hdc, s->x, s->y, s->background_width, s->height,
compat_hdc, 0, 0, SRCCOPY);
SelectObject (s->hdc, orig_brush);
DeleteObject (fg_brush);
SelectObject (compat_hdc, orig_obj);
DeleteDC (compat_hdc);
}
DeleteObject (pixmap);
pixmap = 0;
}
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)
{
XGCValues *gc = s->face->gc;
int x = s->x + width, y = s->y;
int w = s->background_width - width, h = s->height;
RECT r;
HDC hdc = s->hdc;
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);
w32_set_clip_rectangle (hdc, &r);
#if 0 /* TODO: stipple */
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
#endif
{
w32_fill_area (s->f, s->hdc, gc->background, x, y, w, h);
}
}
}
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
&& (s->font->bdf || !s->font->tm.tmUnderlined))
{
unsigned long h = 1;
unsigned long dy = s->height - h;
/* TODO: Use font information for positioning and thickness
of underline. See OUTLINETEXTMETRIC, and xterm.c. */
if (s->face->underline_defaulted_p)
{
w32_fill_area (s->f, s->hdc, s->gc->foreground, s->x,
s->y + dy, s->width, 1);
}
else
{
w32_fill_area (s->f, s->hdc, s->face->underline_color, s->x,
s->y + dy, s->width, 1);
}
}
/* Draw overline. */
if (s->face->overline_p)
{
unsigned long dy = 0, h = 1;
if (s->face->overline_color_defaulted_p)
{
w32_fill_area (s->f, s->hdc, s->gc->foreground, s->x,
s->y + dy, s->width, h);
}
else
{
w32_fill_area (s->f, s->hdc, s->face->underline_color, s->x,
s->y + dy, s->width, h);
}
}
/* Draw strike-through. */
if (s->face->strike_through_p
&& (s->font->bdf || !s->font->tm.tmStruckOut))
{
unsigned long h = 1;
unsigned long dy = (s->height - h) / 2;
if (s->face->strike_through_color_defaulted_p)
{
w32_fill_area (s->f, s->hdc, s->gc->foreground, s->x, s->y + dy,
s->width, h);
}
else
{
w32_fill_area (s->f, s->hdc, s->face->underline_color, s->x,
s->y + dy, s->width, h);
}
}
/* Draw relief. */
if (!relief_drawn_p && s->face->box != FACE_NO_BOX)
x_draw_glyph_string_box (s);
}
/* Reset clipping. */
w32_set_clip_rectangle (s->hdc, NULL);
}
/* Shift display to make room for inserted glyphs. */
void
w32_shift_glyphs_for_insert (f, x, y, width, height, shift_by)
struct frame *f;
int x, y, width, height, shift_by;
{
HDC hdc;
hdc = get_frame_dc (f);
BitBlt (hdc, x + shift_by, y, width, height,
hdc, x, y, SRCCOPY);
release_frame_dc (f, hdc);
}
/* Delete N glyphs at the nominal cursor position. Not implemented
for X frames. */
static void
x_delete_glyphs (n)
register int n;
{
struct frame *f;
if (updating_frame)
f = updating_frame;
else
f = SELECTED_FRAME ();
if (! FRAME_W32_P (f))
return;
abort ();
}
/* 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 ();
if (! FRAME_W32_P (f))
return;
/* 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;
w32_clear_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);
UNBLOCK_INPUT;
}
/* Make audible bell. */
static void
w32_ring_bell (void)
{
struct frame *f;
f = SELECTED_FRAME ();
BLOCK_INPUT;
if (FRAME_W32_P (f) && visible_bell)
{
int i;
HWND hwnd = FRAME_W32_WINDOW (SELECTED_FRAME ());
for (i = 0; i < 5; i++)
{
FlashWindow (hwnd, TRUE);
Sleep (10);
}
FlashWindow (hwnd, FALSE);
}
else
w32_sys_ring_bell ();
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
w32_set_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;
{
struct frame *f;
if (updating_frame)
f = updating_frame;
else
f = SELECTED_FRAME ();
if (! FRAME_W32_P (f))
return;
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;
HWND hwnd = FRAME_W32_WINDOW (f);
HRGN expect_dirty;
/* Get frame-relative bounding box of the text display area of W,
without mode lines. Include in this box the left and right
fringes 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;
expect_dirty = CreateRectRgn (x, y + height, x + width, bottom_y);
}
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;
expect_dirty = CreateRectRgn (x, y, x + width, to_y);
}
BLOCK_INPUT;
/* Cursor off. Will be switched on again in x_update_window_end. */
updated_window = w;
x_clear_cursor (w);
{
RECT from;
RECT to;
HRGN dirty = CreateRectRgn (0, 0, 0, 0);
HRGN combined = CreateRectRgn (0, 0, 0, 0);
from.left = to.left = x;
from.right = to.right = x + width;
from.top = from_y;
from.bottom = from_y + height;
to.top = y;
to.bottom = bottom_y;
ScrollWindowEx (hwnd, 0, to_y - from_y, &from, &to, dirty,
NULL, SW_INVALIDATE);
/* Combine this with what we expect to be dirty. This covers the
case where not all of the region we expect is actually dirty. */
CombineRgn (combined, dirty, expect_dirty, RGN_OR);
/* If the dirty region is not what we expected, redraw the entire frame. */
if (!EqualRgn (combined, expect_dirty))
SET_FRAME_GARBAGED (f);
}
UNBLOCK_INPUT;
}
/***********************************************************************
Exposure Events
***********************************************************************/
static void
frame_highlight (f)
struct frame *f;
{
x_update_cursor (f, 1);
}
static void
frame_unhighlight (f)
struct frame *f;
{
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 w32_display_info *dpyinfo;
struct frame *frame;
{
struct frame *old_focus = dpyinfo->w32_focus_frame;
if (frame != dpyinfo->w32_focus_frame)
{
/* Set this before calling other routines, so that they see
the correct value of w32_focus_frame. */
dpyinfo->w32_focus_frame = frame;
if (old_focus && old_focus->auto_lower)
x_lower_frame (old_focus);
if (dpyinfo->w32_focus_frame && dpyinfo->w32_focus_frame->auto_raise)
pending_autoraise_frame = dpyinfo->w32_focus_frame;
else
pending_autoraise_frame = 0;
}
x_frame_rehighlight (dpyinfo);
}
/* Handle an event saying the mouse has moved out of an Emacs frame. */
void
x_mouse_leave (dpyinfo)
struct w32_display_info *dpyinfo;
{
x_new_focus_frame (dpyinfo, dpyinfo->w32_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
w32_frame_rehighlight (frame)
struct frame *frame;
{
if (! FRAME_W32_P (frame))
return;
x_frame_rehighlight (FRAME_W32_DISPLAY_INFO (frame));
}
static void
x_frame_rehighlight (dpyinfo)
struct w32_display_info *dpyinfo;
{
struct frame *old_highlight = dpyinfo->x_highlight_frame;
if (dpyinfo->w32_focus_frame)
{
dpyinfo->x_highlight_frame
= ((GC_FRAMEP (FRAME_FOCUS_FRAME (dpyinfo->w32_focus_frame)))
? XFRAME (FRAME_FOCUS_FRAME (dpyinfo->w32_focus_frame))
: dpyinfo->w32_focus_frame);
if (! FRAME_LIVE_P (dpyinfo->x_highlight_frame))
{
FRAME_FOCUS_FRAME (dpyinfo->w32_focus_frame) = Qnil;
dpyinfo->x_highlight_frame = dpyinfo->w32_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, etc. */
/* Convert a keysym to its name. */
char *
x_get_keysym_name (keysym)
int keysym;
{
/* Make static so we can always return it */
static char value[100];
BLOCK_INPUT;
GetKeyNameText (keysym, value, 100);
UNBLOCK_INPUT;
return value;
}
/* Mouse clicks and mouse movement. Rah. */
/* Parse a button MESSAGE. The button index is returned in PBUTTON, and
the state in PUP. XBUTTON provides extra information for extended mouse
button messages. Returns FALSE if unable to parse the message. */
BOOL
parse_button (message, xbutton, pbutton, pup)
int message;
int xbutton;
int * pbutton;
int * pup;
{
int button = 0;
int up = 0;
switch (message)
{
case WM_LBUTTONDOWN:
button = 0;
up = 0;
break;
case WM_LBUTTONUP:
button = 0;
up = 1;
break;
case WM_MBUTTONDOWN:
if (NILP (Vw32_swap_mouse_buttons))
button = 1;
else
button = 2;
up = 0;
break;
case WM_MBUTTONUP:
if (NILP (Vw32_swap_mouse_buttons))
button = 1;
else
button = 2;
up = 1;
break;
case WM_RBUTTONDOWN:
if (NILP (Vw32_swap_mouse_buttons))
button = 2;
else
button = 1;
up = 0;
break;
case WM_RBUTTONUP:
if (NILP (Vw32_swap_mouse_buttons))
button = 2;
else
button = 1;
up = 1;
break;
case WM_XBUTTONDOWN:
button = xbutton + 2;
up = 0;
break;
case WM_XBUTTONUP:
button = xbutton + 2;
up = 1;
break;
default:
return (FALSE);
}
if (pup) *pup = up;
if (pbutton) *pbutton = button;
return (TRUE);
}
/* 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, msg, f)
struct input_event *result;
W32Msg *msg;
struct frame *f;
{
int button;
int up;
parse_button (msg->msg.message, HIWORD (msg->msg.wParam),
&button, &up);
/* Make the event type NO_EVENT; we'll change that when we decide
otherwise. */
result->kind = MOUSE_CLICK_EVENT;
result->code = button;
result->timestamp = msg->msg.time;
result->modifiers = (msg->dwModifiers
| (up
? up_modifier
: down_modifier));
XSETINT (result->x, LOWORD (msg->msg.lParam));
XSETINT (result->y, HIWORD (msg->msg.lParam));
XSETFRAME (result->frame_or_window, f);
result->arg = Qnil;
return Qnil;
}
static Lisp_Object
construct_mouse_wheel (result, msg, f)
struct input_event *result;
W32Msg *msg;
struct frame *f;
{
POINT p;
int delta;
result->kind = WHEEL_EVENT;
result->code = 0;
result->timestamp = msg->msg.time;
/* A WHEEL_DELTA positive value indicates that the wheel was rotated
forward, away from the user (up); a negative value indicates that
the wheel was rotated backward, toward the user (down). */
delta = GET_WHEEL_DELTA_WPARAM (msg->msg.wParam);
/* The up and down modifiers indicate if the wheel was rotated up or
down based on WHEEL_DELTA value. */
result->modifiers = (msg->dwModifiers
| ((delta < 0 ) ? down_modifier : up_modifier));
p.x = LOWORD (msg->msg.lParam);
p.y = HIWORD (msg->msg.lParam);
ScreenToClient (msg->msg.hwnd, &p);
XSETINT (result->x, p.x);
XSETINT (result->y, p.y);
XSETFRAME (result->frame_or_window, f);
result->arg = Qnil;
return Qnil;
}
static Lisp_Object
construct_drag_n_drop (result, msg, f)
struct input_event *result;
W32Msg *msg;
struct frame *f;
{
Lisp_Object files;
Lisp_Object frame;
HDROP hdrop;
POINT p;
WORD num_files;
char *name;
int i, len;
result->kind = DRAG_N_DROP_EVENT;
result->code = 0;
result->timestamp = msg->msg.time;
result->modifiers = msg->dwModifiers;
hdrop = (HDROP) msg->msg.wParam;
DragQueryPoint (hdrop, &p);
#if 0
p.x = LOWORD (msg->msg.lParam);
p.y = HIWORD (msg->msg.lParam);
ScreenToClient (msg->msg.hwnd, &p);
#endif
XSETINT (result->x, p.x);
XSETINT (result->y, p.y);
num_files = DragQueryFile (hdrop, 0xFFFFFFFF, NULL, 0);
files = Qnil;
for (i = 0; i < num_files; i++)
{
len = DragQueryFile (hdrop, i, NULL, 0);
if (len <= 0)
continue;
name = alloca (len + 1);
DragQueryFile (hdrop, i, name, len + 1);
files = Fcons (DECODE_FILE (build_string (name)), files);
}
DragFinish (hdrop);
XSETFRAME (frame, f);
result->frame_or_window = Fcons (frame, files);
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 MSG last_mouse_motion_event;
static Lisp_Object last_mouse_motion_frame;
static void remember_mouse_glyph P_ ((struct frame *, int, int));
static void
note_mouse_movement (frame, msg)
FRAME_PTR frame;
MSG *msg;
{
int mouse_x = LOWORD (msg->lParam);
int mouse_y = HIWORD (msg->lParam);
last_mouse_movement_time = msg->time;
memcpy (&last_mouse_motion_event, msg, sizeof (last_mouse_motion_event));
XSETFRAME (last_mouse_motion_frame, frame);
if (msg->hwnd != FRAME_W32_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 (mouse_x < last_mouse_glyph.left
|| mouse_x > last_mouse_glyph.right
|| mouse_y < last_mouse_glyph.top
|| mouse_y > last_mouse_glyph.bottom)
{
frame->mouse_moved = 1;
last_mouse_scroll_bar = Qnil;
note_mouse_highlight (frame, mouse_x, mouse_y);
/* Remember the mouse position here, as w32_mouse_position only
gets called when mouse tracking is enabled but we also need
to keep track of the mouse for help_echo and highlighting at
other times. */
remember_mouse_glyph (frame, mouse_x, mouse_y);
}
}
/************************************************************************
Mouse Face
************************************************************************/
static struct scroll_bar *x_window_to_scroll_bar ();
static void x_scroll_bar_report_motion ();
static void x_check_fullscreen P_ ((struct frame *));
static int glyph_rect P_ ((struct frame *f, int, int, RECT *));
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),
LOWORD (last_mouse_motion_event.lParam),
HIWORD (last_mouse_motion_event.lParam));
}
void
w32_define_cursor (window, cursor)
Window window;
Cursor cursor;
{
PostMessage (window, WM_EMACS_SETCURSOR, (WPARAM) cursor, 0);
}
/* 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;
RECT *rect;
{
Lisp_Object window;
window = window_from_coordinates (f, x, y, 0, &x, &y, 0);
if (!NILP (window))
{
struct window *w = XWINDOW (window);
struct glyph_row *r = MATRIX_FIRST_TEXT_ROW (w->current_matrix);
struct glyph_row *end = r + w->current_matrix->nrows - 1;
for (; r < end && r->enabled_p; ++r)
if (r->y <= y && r->y + r->height > y)
{
/* Found the row at y. */
struct glyph *g = r->glyphs[TEXT_AREA];
struct glyph *end = g + r->used[TEXT_AREA];
int gx;
rect->top = WINDOW_TO_FRAME_PIXEL_Y (w, r->y);
rect->bottom = rect->top + r->height;
if (x < r->x)
{
/* x is to the left of the first glyph in the row. */
/* Shouldn't this be a pixel value?
WINDOW_LEFT_EDGE_X (w) seems to be the right value.
++KFS */
rect->left = WINDOW_LEFT_EDGE_COL (w);
rect->right = WINDOW_TO_FRAME_PIXEL_X (w, r->x);
return 1;
}
for (gx = r->x; g < end; gx += g->pixel_width, ++g)
if (gx <= x && gx + g->pixel_width > x)
{
/* x is on a glyph. */
rect->left = WINDOW_TO_FRAME_PIXEL_X (w, gx);
rect->right = rect->left + g->pixel_width;
return 1;
}
/* x is to the right of the last glyph in the row. */
rect->left = WINDOW_TO_FRAME_PIXEL_X (w, gx);
/* Shouldn't this be a pixel value?
WINDOW_RIGHT_EDGE_X (w) seems to be the right value.
++KFS */
rect->right = WINDOW_RIGHT_EDGE_COL (w);
return 1;
}
}
/* The y is not on any row. */
return 0;
}
/* Record the position of the mouse in last_mouse_glyph. */
static void
remember_mouse_glyph (f1, gx, gy)
struct frame * f1;
int gx, gy;
{
if (!glyph_rect (f1, gx, gy, &last_mouse_glyph))
{
int width = FRAME_SMALLEST_CHAR_WIDTH (f1);
int height = FRAME_SMALLEST_FONT_HEIGHT (f1);
/* 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;
#if 0
/* This was the original code from XTmouse_position, but it seems
to give the position of the glyph diagonally next to the one
the mouse is over. */
gx = (gx + width - 1) / width * width;
gy = (gy + height - 1) / height * height;
#else
gx = gx / width * width;
gy = gy / height * height;
#endif
last_mouse_glyph.left = gx;
last_mouse_glyph.top = gy;
last_mouse_glyph.right = gx + width;
last_mouse_glyph.bottom = gy + height;
}
}
/* 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
w32_mouse_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
{
POINT pt;
Lisp_Object frame, tail;
/* Clear the mouse-moved flag for every frame on this display. */
FOR_EACH_FRAME (tail, frame)
XFRAME (frame)->mouse_moved = 0;
last_mouse_scroll_bar = Qnil;
GetCursorPos (&pt);
/* Now we have a position on the root; find the innermost window
containing the pointer. */
{
if (FRAME_W32_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. */
f1 = last_mouse_frame;
}
else
{
/* Is window under mouse one of our frames? */
f1 = x_any_window_to_frame (FRAME_W32_DISPLAY_INFO (*fp),
WindowFromPoint (pt));
}
/* If not, is it one of our scroll bars? */
if (! f1)
{
struct scroll_bar *bar
= x_window_to_scroll_bar (WindowFromPoint (pt));
if (bar)
{
f1 = XFRAME (WINDOW_FRAME (XWINDOW (bar->window)));
}
}
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. */
#if OLD_REDISPLAY_CODE
int ignore1, ignore2;
ScreenToClient (FRAME_W32_WINDOW (f1), &pt);
pixel_to_glyph_coords (f1, pt.x, pt.y, &ignore1, &ignore2,
&last_mouse_glyph,
FRAME_W32_DISPLAY_INFO (f1)->grabbed
|| insist);
#else
ScreenToClient (FRAME_W32_WINDOW (f1), &pt);
remember_mouse_glyph (f1, pt.x, pt.y);
#endif
*bar_window = Qnil;
*part = 0;
*fp = f1;
XSETINT (*x, pt.x);
XSETINT (*y, pt.y);
*time = last_mouse_movement_time;
}
}
}
UNBLOCK_INPUT;
}
/***********************************************************************
Tool-bars
***********************************************************************/
/* Handle mouse button event on the tool-bar of frame F, at
frame-relative coordinates X/Y. EVENT_TYPE is either ButtionPress
or ButtonRelase. */
static void
w32_handle_tool_bar_click (f, button_event)
struct frame *f;
struct input_event *button_event;
{
int x = XFASTINT (button_event->x);
int y = XFASTINT (button_event->y);
if (button_event->modifiers & down_modifier)
handle_tool_bar_click (f, x, y, 1, 0);
else
handle_tool_bar_click (f, x, y, 0,
button_event->modifiers & ~up_modifier);
}
/***********************************************************************
Scroll bars
***********************************************************************/
/* Scroll bar support. */
/* Given a window ID, 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 (window_id)
Window window_id;
{
Lisp_Object tail;
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_W32_WINDOW (XSCROLL_BAR (bar)) == window_id)
return XSCROLL_BAR (bar);
}
return 0;
}
/* Set the thumb size and position of scroll bar BAR. We are currently
displaying PORTION out of a whole WHOLE, and our position POSITION. */
static void
w32_set_scroll_bar_thumb (bar, portion, position, whole)
struct scroll_bar *bar;
int portion, position, whole;
{
Window w = SCROLL_BAR_W32_WINDOW (bar);
double range = VERTICAL_SCROLL_BAR_TOP_RANGE (f, XINT (bar->height));
int sb_page, sb_pos;
BOOL draggingp = !NILP (bar->dragging) ? TRUE : FALSE;
if (whole)
{
/* Position scroll bar at rock bottom if the bottom of the
buffer is visible. This avoids shinking the thumb away
to nothing if it is held at the bottom of the buffer. */
if (position + portion >= whole)
{
sb_page = range * (whole - position) / whole
+ VERTICAL_SCROLL_BAR_MIN_HANDLE;
sb_pos = range;
}
sb_page = portion * range / whole + VERTICAL_SCROLL_BAR_MIN_HANDLE;
sb_pos = position * range / whole;
}
else
{
sb_page = range;
sb_pos = 0;
}
BLOCK_INPUT;
if (pfnSetScrollInfo)
{
SCROLLINFO si;
si.cbSize = sizeof (si);
/* Only update page size if currently dragging, to reduce
flicker effects. */
if (draggingp)
si.fMask = SIF_PAGE;
else
si.fMask = SIF_PAGE | SIF_POS;
si.nPage = sb_page;
si.nPos = sb_pos;
pfnSetScrollInfo (w, SB_CTL, &si, !draggingp);
}
else
SetScrollPos (w, SB_CTL, sb_pos, !draggingp);
UNBLOCK_INPUT;
}
/************************************************************************
Scroll bars, general
************************************************************************/
HWND
my_create_scrollbar (f, bar)
struct frame * f;
struct scroll_bar * bar;
{
return (HWND) SendMessage (FRAME_W32_WINDOW (f),
WM_EMACS_CREATESCROLLBAR, (WPARAM) f,
(LPARAM) bar);
}
/*#define ATTACH_THREADS*/
BOOL
my_show_window (FRAME_PTR f, HWND hwnd, int how)
{
#ifndef ATTACH_THREADS
return SendMessage (FRAME_W32_WINDOW (f), WM_EMACS_SHOWWINDOW,
(WPARAM) hwnd, (LPARAM) how);
#else
return ShowWindow (hwnd, how);
#endif
}
void
my_set_window_pos (HWND hwnd, HWND hwndAfter,
int x, int y, int cx, int cy, UINT flags)
{
#ifndef ATTACH_THREADS
WINDOWPOS pos;
pos.hwndInsertAfter = hwndAfter;
pos.x = x;
pos.y = y;
pos.cx = cx;
pos.cy = cy;
pos.flags = flags;
SendMessage (hwnd, WM_EMACS_SETWINDOWPOS, (WPARAM) &pos, 0);
#else
SetWindowPos (hwnd, hwndAfter, x, y, cx, cy, flags);
#endif
}
void
my_set_focus (f, hwnd)
struct frame * f;
HWND hwnd;
{
SendMessage (FRAME_W32_WINDOW (f), WM_EMACS_SETFOCUS,
(WPARAM) hwnd, 0);
}
void
my_set_foreground_window (hwnd)
HWND hwnd;
{
SendMessage (hwnd, WM_EMACS_SETFOREGROUND, (WPARAM) hwnd, 0);
}
void
my_destroy_window (f, hwnd)
struct frame * f;
HWND hwnd;
{
SendMessage (FRAME_W32_WINDOW (f), WM_EMACS_DESTROYWINDOW,
(WPARAM) hwnd, 0);
}
/* 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 (WINDOW_FRAME (w));
HWND hwnd;
struct scroll_bar *bar
= XSCROLL_BAR (Fmake_vector (make_number (SCROLL_BAR_VEC_SIZE), Qnil));
BLOCK_INPUT;
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;
/* Requires geometry to be set before call to create the real window */
hwnd = my_create_scrollbar (f, bar);
if (pfnSetScrollInfo)
{
SCROLLINFO si;
si.cbSize = sizeof (si);
si.fMask = SIF_ALL;
si.nMin = 0;
si.nMax = VERTICAL_SCROLL_BAR_TOP_RANGE (f, height)
+ VERTICAL_SCROLL_BAR_MIN_HANDLE;
si.nPage = si.nMax;
si.nPos = 0;
pfnSetScrollInfo (hwnd, SB_CTL, &si, FALSE);
}
else
{
SetScrollRange (hwnd, SB_CTL, 0,
VERTICAL_SCROLL_BAR_TOP_RANGE (f, height), FALSE);
SetScrollPos (hwnd, SB_CTL, 0, FALSE);
}
SET_SCROLL_BAR_W32_WINDOW (bar, hwnd);
/* 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);
UNBLOCK_INPUT;
return bar;
}
/* 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;
{
FRAME_PTR f = XFRAME (WINDOW_FRAME (XWINDOW (bar->window)));
BLOCK_INPUT;
/* Destroy the window. */
my_destroy_window (f, SCROLL_BAR_W32_WINDOW (bar));
/* 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
w32_set_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. */
if (WINDOW_HAS_VERTICAL_SCROLL_BAR_ON_RIGHT (w))
sb_left = left + width - sb_width - (width - sb_width) / 2;
else
sb_left = left + (width - sb_width) / 2;
/* Does the scroll bar exist yet? */
if (NILP (w->vertical_scroll_bar))
{
HDC hdc;
BLOCK_INPUT;
if (width > 0 && height > 0)
{
hdc = get_frame_dc (f);
w32_clear_area (f, hdc, left, top, width, height);
release_frame_dc (f, hdc);
}
UNBLOCK_INPUT;
bar = x_scroll_bar_create (w, top, sb_left, sb_width, height);
}
else
{
/* It may just need to be moved and resized. */
HWND hwnd;
bar = XSCROLL_BAR (w->vertical_scroll_bar);
hwnd = SCROLL_BAR_W32_WINDOW (bar);
/* If already correctly positioned, do nothing. */
if ( XINT (bar->left) == sb_left
&& XINT (bar->top) == top
&& XINT (bar->width) == sb_width
&& XINT (bar->height) == height )
{
/* Redraw after clear_frame. */
if (!my_show_window (f, hwnd, SW_NORMAL))
InvalidateRect (hwnd, NULL, FALSE);
}
else
{
HDC hdc;
BLOCK_INPUT;
if (width && height)
{
hdc = get_frame_dc (f);
/* Since Windows scroll bars are smaller than the space reserved
for them on the frame, we have to clear "under" them. */
w32_clear_area (f, hdc,
left,
top,
width,
height);
release_frame_dc (f, hdc);
}
/* Make sure scroll bar is "visible" before moving, to ensure the
area of the parent window now exposed will be refreshed. */
my_show_window (f, hwnd, SW_HIDE);
MoveWindow (hwnd, sb_left + VERTICAL_SCROLL_BAR_WIDTH_TRIM,
top, sb_width - VERTICAL_SCROLL_BAR_WIDTH_TRIM * 2,
max (height, 1), TRUE);
if (pfnSetScrollInfo)
{
SCROLLINFO si;
si.cbSize = sizeof (si);
si.fMask = SIF_RANGE;
si.nMin = 0;
si.nMax = VERTICAL_SCROLL_BAR_TOP_RANGE (f, height)
+ VERTICAL_SCROLL_BAR_MIN_HANDLE;
pfnSetScrollInfo (hwnd, SB_CTL, &si, FALSE);
}
else
SetScrollRange (hwnd, SB_CTL, 0,
VERTICAL_SCROLL_BAR_TOP_RANGE (f, height), FALSE);
my_show_window (f, hwnd, SW_NORMAL);
/* InvalidateRect (w, NULL, FALSE); */
/* Remember new settings. */
XSETINT (bar->left, sb_left);
XSETINT (bar->top, top);
XSETINT (bar->width, sb_width);
XSETINT (bar->height, height);
UNBLOCK_INPUT;
}
}
w32_set_scroll_bar_thumb (bar, portion, position, whole);
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
w32_condemn_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
w32_redeem_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
w32_judge_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. */
}
/* 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 int
w32_scroll_bar_handle_click (bar, msg, emacs_event)
struct scroll_bar *bar;
W32Msg *msg;
struct input_event *emacs_event;
{
if (! GC_WINDOWP (bar->window))
abort ();
emacs_event->kind = W32_SCROLL_BAR_CLICK_EVENT;
emacs_event->code = 0;
/* not really meaningful to distinguish up/down */
emacs_event->modifiers = msg->dwModifiers;
emacs_event->frame_or_window = bar->window;
emacs_event->arg = Qnil;
emacs_event->timestamp = msg->msg.time;
{
int top_range = VERTICAL_SCROLL_BAR_TOP_RANGE (f, XINT (bar->height));
int y;
int dragging = !NILP (bar->dragging);
if (pfnGetScrollInfo)
{
SCROLLINFO si;
si.cbSize = sizeof (si);
si.fMask = SIF_POS;
pfnGetScrollInfo ((HWND) msg->msg.lParam, SB_CTL, &si);
y = si.nPos;
}
else
y = GetScrollPos ((HWND) msg->msg.lParam, SB_CTL);
bar->dragging = Qnil;
last_mouse_scroll_bar_pos = msg->msg.wParam;
switch (LOWORD (msg->msg.wParam))
{
case SB_LINEDOWN:
emacs_event->part = scroll_bar_down_arrow;
break;
case SB_LINEUP:
emacs_event->part = scroll_bar_up_arrow;
break;
case SB_PAGEUP:
emacs_event->part = scroll_bar_above_handle;
break;
case SB_PAGEDOWN:
emacs_event->part = scroll_bar_below_handle;
break;
case SB_TOP:
emacs_event->part = scroll_bar_handle;
y = 0;
break;
case SB_BOTTOM:
emacs_event->part = scroll_bar_handle;
y = top_range;
break;
case SB_THUMBTRACK:
case SB_THUMBPOSITION:
if (VERTICAL_SCROLL_BAR_TOP_RANGE (f, XINT (bar->height)) <= 0xffff)
y = HIWORD (msg->msg.wParam);
bar->dragging = Qt;
emacs_event->part = scroll_bar_handle;
/* "Silently" update current position. */
if (pfnSetScrollInfo)
{
SCROLLINFO si;
si.cbSize = sizeof (si);
si.fMask = SIF_POS;
si.nPos = y;
/* Remember apparent position (we actually lag behind the real
position, so don't set that directly. */
last_scroll_bar_drag_pos = y;
pfnSetScrollInfo (SCROLL_BAR_W32_WINDOW (bar), SB_CTL, &si, FALSE);
}
else
SetScrollPos (SCROLL_BAR_W32_WINDOW (bar), SB_CTL, y, FALSE);
break;
case SB_ENDSCROLL:
/* If this is the end of a drag sequence, then reset the scroll
handle size to normal and do a final redraw. Otherwise do
nothing. */
if (dragging)
{
if (pfnSetScrollInfo)
{
SCROLLINFO si;
int start = XINT (bar->start);
int end = XINT (bar->end);
si.cbSize = sizeof (si);
si.fMask = SIF_PAGE | SIF_POS;
si.nPage = end - start + VERTICAL_SCROLL_BAR_MIN_HANDLE;
si.nPos = last_scroll_bar_drag_pos;
pfnSetScrollInfo (SCROLL_BAR_W32_WINDOW (bar), SB_CTL, &si, TRUE);
}
else
SetScrollPos (SCROLL_BAR_W32_WINDOW (bar), SB_CTL, y, TRUE);
}
/* fall through */
default:
emacs_event->kind = NO_EVENT;
return FALSE;
}
XSETINT (emacs_event->x, y);
XSETINT (emacs_event->y, top_range);
return TRUE;
}
}
/* 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_W32_WINDOW (bar);
FRAME_PTR f = XFRAME (WINDOW_FRAME (XWINDOW (bar->window)));
int pos;
int top_range = VERTICAL_SCROLL_BAR_TOP_RANGE (f, XINT (bar->height));
BLOCK_INPUT;
*fp = f;
*bar_window = bar->window;
if (pfnGetScrollInfo)
{
SCROLLINFO si;
si.cbSize = sizeof (si);
si.fMask = SIF_POS | SIF_PAGE | SIF_RANGE;
pfnGetScrollInfo (w, SB_CTL, &si);
pos = si.nPos;
top_range = si.nMax - si.nPage + 1;
}
else
pos = GetScrollPos (w, SB_CTL);
switch (LOWORD (last_mouse_scroll_bar_pos))
{
case SB_THUMBPOSITION:
case SB_THUMBTRACK:
*part = scroll_bar_handle;
if (VERTICAL_SCROLL_BAR_TOP_RANGE (f, XINT (bar->height)) <= 0xffff)
pos = HIWORD (last_mouse_scroll_bar_pos);
break;
case SB_LINEDOWN:
*part = scroll_bar_handle;
pos++;
break;
default:
*part = scroll_bar_handle;
break;
}
XSETINT (*x, pos);
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;
{
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)
{
HWND window = SCROLL_BAR_W32_WINDOW (XSCROLL_BAR (bar));
HDC hdc = GetDC (window);
RECT rect;
/* Hide scroll bar until ready to repaint. x_scroll_bar_move
arranges to refresh the scroll bar if hidden. */
my_show_window (f, window, SW_HIDE);
GetClientRect (window, &rect);
select_palette (f, hdc);
w32_clear_rect (f, hdc, &rect);
deselect_palette (f, hdc);
ReleaseDC (window, hdc);
}
}
/* The main W32 event-reading loop - w32_read_socket. */
/* 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];
/* Read events coming from the W32 shell.
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.
Some of these messages are reposted back to the message queue since the
system calls the windows proc directly in a context where we cannot return
the data nor can we guarantee the state we are in. So if we dispatch them
we will get into an infinite loop. To prevent this from ever happening we
will set a variable to indicate we are in the read_socket call and indicate
which message we are processing since the windows proc gets called
recursively with different messages by the system.
*/
int
w32_read_socket (sd, expected, hold_quit)
register int sd;
int expected;
struct input_event *hold_quit;
{
int count = 0;
int check_visibility = 0;
W32Msg msg;
struct frame *f;
struct w32_display_info *dpyinfo = &one_w32_display_info;
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++;
/* TODO: ghostscript integration. */
while (get_next_msg (&msg, FALSE))
{
struct input_event inev;
int do_help = 0;
EVENT_INIT (inev);
inev.kind = NO_EVENT;
inev.arg = Qnil;
switch (msg.msg.message)
{
case WM_PAINT:
f = x_window_to_frame (dpyinfo, msg.msg.hwnd);
if (f)
{
if (msg.rect.right == msg.rect.left ||
msg.rect.bottom == msg.rect.top)
{
/* We may get paint messages even though the client
area is clipped - these are not expose events. */
DebPrint (("clipped frame %p (%s) got WM_PAINT - ignored\n", f,
SDATA (f->name)));
}
else if (f->async_visible != 1)
{
/* Definitely not obscured, so mark as visible. */
f->async_visible = 1;
f->async_iconified = 0;
SET_FRAME_GARBAGED (f);
DebPrint (("frame %p (%s) reexposed by WM_PAINT\n", f,
SDATA (f->name)));
/* WM_PAINT serves as MapNotify as well, so report
visibility changes properly. */
if (f->iconified)
{
inev.kind = DEICONIFY_EVENT;
XSETFRAME (inev.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 ();
}
else
{
HDC hdc = get_frame_dc (f);
/* Erase background again for safety. */
w32_clear_rect (f, hdc, &msg.rect);
release_frame_dc (f, hdc);
expose_frame (f,
msg.rect.left,
msg.rect.top,
msg.rect.right - msg.rect.left,
msg.rect.bottom - msg.rect.top);
}
}
break;
case WM_INPUTLANGCHANGE:
/* Generate a language change event. */
f = x_window_to_frame (dpyinfo, msg.msg.hwnd);
if (f)
{
inev.kind = LANGUAGE_CHANGE_EVENT;
XSETFRAME (inev.frame_or_window, f);
inev.code = msg.msg.wParam;
inev.modifiers = msg.msg.lParam & 0xffff;
}
break;
case WM_KEYDOWN:
case WM_SYSKEYDOWN:
f = x_window_to_frame (dpyinfo, msg.msg.hwnd);
if (f && !f->iconified)
{
if (!dpyinfo->mouse_face_hidden && INTEGERP (Vmouse_highlight))
{
clear_mouse_face (dpyinfo);
dpyinfo->mouse_face_hidden = 1;
}
if (temp_index == sizeof temp_buffer / sizeof (short))
temp_index = 0;
temp_buffer[temp_index++] = msg.msg.wParam;
inev.kind = NON_ASCII_KEYSTROKE_EVENT;
inev.code = msg.msg.wParam;
inev.modifiers = msg.dwModifiers;
XSETFRAME (inev.frame_or_window, f);
inev.timestamp = msg.msg.time;
}
break;
case WM_SYSCHAR:
case WM_CHAR:
f = x_window_to_frame (dpyinfo, msg.msg.hwnd);
if (f && !f->iconified)
{
if (!dpyinfo->mouse_face_hidden && INTEGERP (Vmouse_highlight))
{
clear_mouse_face (dpyinfo);
dpyinfo->mouse_face_hidden = 1;
}
if (temp_index == sizeof temp_buffer / sizeof (short))
temp_index = 0;
temp_buffer[temp_index++] = msg.msg.wParam;
inev.kind = ASCII_KEYSTROKE_EVENT;
inev.code = msg.msg.wParam;
inev.modifiers = msg.dwModifiers;
XSETFRAME (inev.frame_or_window, f);
inev.timestamp = msg.msg.time;
}
break;
case WM_MOUSEMOVE:
/* Ignore non-movement. */
{
int x = LOWORD (msg.msg.lParam);
int y = HIWORD (msg.msg.lParam);
if (x == last_mousemove_x && y == last_mousemove_y)
break;
last_mousemove_x = x;
last_mousemove_y = y;
}
previous_help_echo_string = help_echo_string;
if (dpyinfo->grabbed && last_mouse_frame
&& FRAME_LIVE_P (last_mouse_frame))
f = last_mouse_frame;
else
f = x_window_to_frame (dpyinfo, msg.msg.hwnd);
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;
int x = LOWORD (msg.msg.lParam);
int y = HIWORD (msg.msg.lParam);
window = window_from_coordinates (f, x, 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.kind = SELECT_WINDOW_EVENT;
inev.frame_or_window = window;
}
last_window=window;
}
note_mouse_movement (f, &msg.msg);
}
else
{
/* 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 0 /* The below is an invalid comparison when USE_LISP_UNION_TYPE.
But it was originally changed to this to fix a bug, so I have
not removed it completely in case the bug is still there. */
if (help_echo_string != previous_help_echo_string ||
(!NILP (help_echo_string) && !STRINGP (help_echo_string) && f->mouse_moved))
#else /* This is what xterm.c does. */
if (!NILP (help_echo_string)
|| !NILP (previous_help_echo_string))
do_help = 1;
#endif
break;
case WM_LBUTTONDOWN:
case WM_LBUTTONUP:
case WM_MBUTTONDOWN:
case WM_MBUTTONUP:
case WM_RBUTTONDOWN:
case WM_RBUTTONUP:
case WM_XBUTTONDOWN:
case WM_XBUTTONUP:
{
/* 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;
int button;
int up;
if (dpyinfo->grabbed && last_mouse_frame
&& FRAME_LIVE_P (last_mouse_frame))
f = last_mouse_frame;
else
f = x_window_to_frame (dpyinfo, msg.msg.hwnd);
if (f)
{
construct_mouse_click (&inev, &msg, 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 = XFASTINT (inev.x);
int y = XFASTINT (inev.y);
window = window_from_coordinates (f, x, y, 0, 0, 0, 1);
if (EQ (window, f->tool_bar_window))
{
w32_handle_tool_bar_click (f, &inev);
tool_bar_p = 1;
}
}
if (tool_bar_p
|| (dpyinfo->w32_focus_frame
&& f != dpyinfo->w32_focus_frame))
inev.kind = NO_EVENT;
}
parse_button (msg.msg.message, HIWORD (msg.msg.wParam),
&button, &up);
if (up)
{
dpyinfo->grabbed &= ~ (1 << button);
}
else
{
dpyinfo->grabbed |= (1 << 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;
}
break;
}
case WM_MOUSEWHEEL:
{
if (dpyinfo->grabbed && last_mouse_frame
&& FRAME_LIVE_P (last_mouse_frame))
f = last_mouse_frame;
else
f = x_window_to_frame (dpyinfo, msg.msg.hwnd);
if (f)
{
if (!dpyinfo->w32_focus_frame
|| f == dpyinfo->w32_focus_frame)
{
/* Emit an Emacs wheel-up/down event. */
construct_mouse_wheel (&inev, &msg, f);
}
/* Ignore any mouse motion that happened before this
event; any subsequent mouse-movement Emacs events
should reflect only motion after the
ButtonPress. */
f->mouse_moved = 0;
}
last_mouse_frame = f;
last_tool_bar_item = -1;
}
break;
case WM_DROPFILES:
f = x_window_to_frame (dpyinfo, msg.msg.hwnd);
if (f)
construct_drag_n_drop (&inev, &msg, f);
break;
case WM_VSCROLL:
{
struct scroll_bar *bar =
x_window_to_scroll_bar ((HWND)msg.msg.lParam);
if (bar)
w32_scroll_bar_handle_click (bar, &msg, &inev);
break;
}
case WM_WINDOWPOSCHANGED:
f = x_window_to_frame (dpyinfo, msg.msg.hwnd);
if (f)
{
if (f->want_fullscreen & FULLSCREEN_WAIT)
f->want_fullscreen &= ~(FULLSCREEN_WAIT|FULLSCREEN_BOTH);
}
check_visibility = 1;
break;
case WM_ACTIVATE:
case WM_ACTIVATEAPP:
f = x_window_to_frame (dpyinfo, msg.msg.hwnd);
if (f)
x_check_fullscreen (f);
check_visibility = 1;
break;
case WM_MOVE:
f = x_window_to_frame (dpyinfo, msg.msg.hwnd);
if (f && !f->async_iconified)
{
int x, y;
x_real_positions (f, &x, &y);
f->left_pos = x;
f->top_pos = y;
}
check_visibility = 1;
break;
case WM_SHOWWINDOW:
/* wParam non-zero means Window is about to be shown, 0 means
about to be hidden. */
/* Redo the mouse-highlight after the tooltip has gone. */
if (!msg.msg.wParam && msg.msg.hwnd == tip_window)
{
tip_window = NULL;
redo_mouse_highlight ();
}
/* If window has been obscured or exposed by another window
being maximised or minimised/restored, then recheck
visibility of all frames. Direct changes to our own
windows get handled by WM_SIZE. */
#if 0
if (msg.msg.lParam != 0)
check_visibility = 1;
else
{
f = x_window_to_frame (dpyinfo, msg.msg.hwnd);
f->async_visible = msg.msg.wParam;
}
#endif
check_visibility = 1;
break;
case WM_SIZE:
f = x_window_to_frame (dpyinfo, msg.msg.hwnd);
/* Inform lisp of whether frame has been iconified etc. */
if (f)
{
switch (msg.msg.wParam)
{
case SIZE_MINIMIZED:
f->async_visible = 0;
f->async_iconified = 1;
inev.kind = ICONIFY_EVENT;
XSETFRAME (inev.frame_or_window, f);
break;
case SIZE_MAXIMIZED:
case SIZE_RESTORED:
f->async_visible = 1;
f->async_iconified = 0;
/* wait_reading_process_output will notice this and update
the frame's display structures. */
SET_FRAME_GARBAGED (f);
if (f->iconified)
{
int x, y;
/* Reset top and left positions of the Window
here since Windows sends a WM_MOVE message
BEFORE telling us the Window is minimized
when the Window is iconified, with 3000,3000
as the co-ords. */
x_real_positions (f, &x, &y);
f->left_pos = x;
f->top_pos = y;
inev.kind = DEICONIFY_EVENT;
XSETFRAME (inev.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 ();
break;
}
}
if (f && !f->async_iconified && msg.msg.wParam != SIZE_MINIMIZED)
{
RECT rect;
int rows;
int columns;
int width;
int height;
GetClientRect (msg.msg.hwnd, &rect);
height = rect.bottom - rect.top;
width = rect.right - rect.left;
rows = FRAME_PIXEL_HEIGHT_TO_TEXT_LINES (f, height);
columns = FRAME_PIXEL_WIDTH_TO_TEXT_COLS (f, width);
/* TODO: Clip size to the screen dimensions. */
/* 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)
|| width != FRAME_PIXEL_WIDTH (f)
|| height != FRAME_PIXEL_HEIGHT (f))
{
change_frame_size (f, rows, columns, 0, 1, 0);
SET_FRAME_GARBAGED (f);
cancel_mouse_face (f);
FRAME_PIXEL_WIDTH (f) = width;
FRAME_PIXEL_HEIGHT (f) = height;
f->win_gravity = NorthWestGravity;
}
}
check_visibility = 1;
break;
case WM_MOUSELEAVE:
f = x_any_window_to_frame (dpyinfo, msg.msg.hwnd);
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;
}
break;
case WM_SETFOCUS:
/* TODO: Port this change:
2002-06-28 Jan D. <jan.h.d@swipnet.se>
* xterm.h (struct x_output): Add focus_state.
* xterm.c (x_focus_changed): New function.
(x_detect_focus_change): New function.
(XTread_socket): Call x_detect_focus_change for FocusIn/FocusOut
EnterNotify and LeaveNotify to track X focus changes.
*/
f = x_any_window_to_frame (dpyinfo, msg.msg.hwnd);
dpyinfo->w32_focus_event_frame = f;
if (f)
x_new_focus_frame (dpyinfo, f);
dpyinfo->grabbed = 0;
check_visibility = 1;
break;
case WM_KILLFOCUS:
/* TODO: some of this belongs in MOUSE_LEAVE */
f = x_top_window_to_frame (dpyinfo, msg.msg.hwnd);
if (f)
{
if (f == dpyinfo->w32_focus_event_frame)
dpyinfo->w32_focus_event_frame = 0;
if (f == dpyinfo->w32_focus_frame)
x_new_focus_frame (dpyinfo, 0);
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;
}
dpyinfo->grabbed = 0;
check_visibility = 1;
break;
case WM_CLOSE:
f = x_window_to_frame (dpyinfo, msg.msg.hwnd);
if (f)
{
inev.kind = DELETE_WINDOW_EVENT;
XSETFRAME (inev.frame_or_window, f);
}
break;
case WM_INITMENU:
f = x_window_to_frame (dpyinfo, msg.msg.hwnd);
if (f)
{
inev.kind = MENU_BAR_ACTIVATE_EVENT;
XSETFRAME (inev.frame_or_window, f);
}
break;
case WM_COMMAND:
f = x_window_to_frame (dpyinfo, msg.msg.hwnd);
if (f)
{
extern void menubar_selection_callback
(FRAME_PTR f, void * client_data);
menubar_selection_callback (f, (void *)msg.msg.wParam);
}
check_visibility = 1;
break;
case WM_DISPLAYCHANGE:
f = x_window_to_frame (dpyinfo, msg.msg.hwnd);
if (f)
{
dpyinfo->width = (short) LOWORD (msg.msg.lParam);
dpyinfo->height = (short) HIWORD (msg.msg.lParam);
dpyinfo->n_cbits = msg.msg.wParam;
DebPrint (("display change: %d %d\n", dpyinfo->width,
dpyinfo->height));
}
check_visibility = 1;
break;
default:
/* Check for messages registered at runtime. */
if (msg.msg.message == msh_mousewheel)
{
/* Forward MSH_MOUSEWHEEL as WM_MOUSEWHEEL. */
msg.msg.message = WM_MOUSEWHEEL;
prepend_msg (&msg);
}
break;
}
if (inev.kind != NO_EVENT)
{
kbd_buffer_store_event_hold (&inev, 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)
{
if (NILP (help_echo_string))
{
help_echo_object = help_echo_window = Qnil;
help_echo_pos = -1;
}
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++;
}
}
/* If the focus was just given to an autoraising 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;
}
/* Check which frames are still visisble, if we have enqueued any user
events or been notified of events that may affect visibility. We
do this here because there doesn't seem to be any direct
notification from Windows that the visibility of a window has
changed (at least, not in all cases). */
if (count > 0 || check_visibility)
{
Lisp_Object tail, frame;
FOR_EACH_FRAME (tail, frame)
{
FRAME_PTR f = XFRAME (frame);
/* The tooltip has been drawn already. Avoid the
SET_FRAME_GARBAGED below. */
if (EQ (frame, tip_frame))
continue;
/* Check "visible" frames and mark each as obscured or not.
Note that async_visible is nonzero for unobscured and
obscured frames, but zero for hidden and iconified frames. */
if (FRAME_W32_P (f) && f->async_visible)
{
RECT clipbox;
HDC hdc;
enter_crit ();
/* Query clipping rectangle for the entire window area
(GetWindowDC), not just the client portion (GetDC).
Otherwise, the scrollbars and menubar aren't counted as
part of the visible area of the frame, and we may think
the frame is obscured when really a scrollbar is still
visible and gets WM_PAINT messages above. */
hdc = GetWindowDC (FRAME_W32_WINDOW (f));
GetClipBox (hdc, &clipbox);
ReleaseDC (FRAME_W32_WINDOW (f), hdc);
leave_crit ();
if (clipbox.right == clipbox.left
|| clipbox.bottom == clipbox.top)
{
/* Frame has become completely obscured so mark as
such (we do this by setting async_visible to 2 so
that FRAME_VISIBLE_P is still true, but redisplay
will skip it). */
f->async_visible = 2;
if (!FRAME_OBSCURED_P (f))
{
DebPrint (("frame %p (%s) obscured\n", f,
SDATA (f->name)));
}
}
else
{
/* Frame is not obscured, so mark it as such. */
f->async_visible = 1;
if (FRAME_OBSCURED_P (f))
{
SET_FRAME_GARBAGED (f);
DebPrint (("obscured frame %p (%s) found to be visible\n", f,
SDATA (f->name)));
/* Force a redisplay sooner or later. */
record_asynch_buffer_change ();
}
}
}
}
}
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
w32_clip_to_row (w, row, hdc)
struct window *w;
struct glyph_row *row;
HDC hdc;
{
struct frame *f = XFRAME (WINDOW_FRAME (w));
RECT clip_rect;
int window_y, window_width;
window_box (w, -1, 0, &window_y, &window_width, 0);
clip_rect.left = WINDOW_TO_FRAME_PIXEL_X (w, 0);
clip_rect.top = WINDOW_TO_FRAME_PIXEL_Y (w, row->y);
clip_rect.top = max (clip_rect.top, window_y);
clip_rect.right = clip_rect.left + window_width;
clip_rect.bottom = clip_rect.top + row->visible_height;
w32_set_clip_rectangle (hdc, &clip_rect);
}
/* 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));
HDC hdc;
RECT rect;
int wd, h;
struct glyph *cursor_glyph;
HBRUSH hb = CreateSolidBrush (f->output_data.w32->cursor_pixel);
/* 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 from window-relative
coordinates. */
rect.left = WINDOW_TEXT_TO_FRAME_PIXEL_X (w, w->phys_cursor.x);
rect.top = (WINDOW_TO_FRAME_PIXEL_Y (w, w->phys_cursor.y)
+ row->ascent - w->phys_cursor_ascent);
/* Compute the proper height and ascent of the rectangle, based
on the actual glyph. Using the full height of the row looks
bad when there are tall images on that row. */
h = max (min (FRAME_LINE_HEIGHT (f), row->height),
cursor_glyph->ascent + cursor_glyph->descent);
if (h < row->height)
rect.top += row->ascent /* - w->phys_cursor_ascent */ + cursor_glyph->descent - h;
h--;
rect.bottom = rect.top + h;
/* Compute the width of the rectangle to draw. If on a stretch
glyph, and `x-stretch-block-cursor' is nil, don't draw a
rectangle as wide as the glyph, but use a canonical character
width instead. */
wd = cursor_glyph->pixel_width; /* TODO: Why off by one compared with X? */
if (cursor_glyph->type == STRETCH_GLYPH
&& !x_stretch_cursor_p)
wd = min (FRAME_COLUMN_WIDTH (f), wd);
w->phys_cursor_width = wd;
rect.right = rect.left + wd;
hdc = get_frame_dc (f);
/* Set clipping, draw the rectangle, and reset clipping again. */
w32_clip_to_row (w, row, hdc);
FrameRect (hdc, &rect, hb);
DeleteObject (hb);
w32_set_clip_rectangle (hdc, NULL);
release_frame_dc (f, hdc);
}
/* 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;
int x;
HDC hdc;
/* 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
{
COLORREF cursor_color = f->output_data.w32->cursor_pixel;
struct face *face = FACE_FROM_ID (f, cursor_glyph->face_id);
/* 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 == cursor_color)
cursor_color = face->foreground;
x = WINDOW_TEXT_TO_FRAME_PIXEL_X (w, w->phys_cursor.x);
if (width < 0)
width = FRAME_CURSOR_WIDTH (f);
width = min (cursor_glyph->pixel_width, width);
w->phys_cursor_width = width;
hdc = get_frame_dc (f);
w32_clip_to_row (w, row, hdc);
if (kind == BAR_CURSOR)
{
w32_fill_area (f, hdc, cursor_color, x,
WINDOW_TO_FRAME_PIXEL_Y (w, w->phys_cursor.y),
width, row->height);
}
else
{
w32_fill_area (f, hdc, cursor_color, x,
WINDOW_TO_FRAME_PIXEL_Y (w, w->phys_cursor.y +
row->height - width),
cursor_glyph->pixel_width, width);
}
w32_set_clip_rectangle (hdc, NULL);
release_frame_dc (f, hdc);
}
}
/* RIF: Define cursor CURSOR on frame F. */
static void
w32_define_frame_cursor (f, cursor)
struct frame *f;
Cursor cursor;
{
w32_define_cursor (FRAME_W32_WINDOW (f), cursor);
}
/* RIF: Clear area on frame F. */
static void
w32_clear_frame_area (f, x, y, width, height)
struct frame *f;
int x, y, width, height;
{
HDC hdc;
hdc = get_frame_dc (f);
w32_clear_area (f, hdc, x, y, width, height);
release_frame_dc (f, hdc);
}
/* RIF: Draw or clear cursor on window W. */
static void
w32_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;
{
if (on_p)
{
/* If the user wants to use the system caret, make sure our own
cursor remains invisible. */
if (w32_use_visible_system_caret)
{
/* Call to erase_phys_cursor here seems to use the
wrong values of w->phys_cursor, as they have been
overwritten before this function was called. */
if (w->phys_cursor_type != NO_CURSOR)
erase_phys_cursor (w);
cursor_type = w->phys_cursor_type = NO_CURSOR;
w->phys_cursor_width = -1;
}
else
{
w->phys_cursor_type = cursor_type;
}
w->phys_cursor_on_p = 1;
/* If this is the active cursor, we need to track it with the
system caret, so third party software like screen magnifiers
and speech synthesizers can follow the cursor. */
if (active_p)
{
struct frame *f = XFRAME (WINDOW_FRAME (w));
HWND hwnd = FRAME_W32_WINDOW (f);
w32_system_caret_x
= WINDOW_TEXT_TO_FRAME_PIXEL_X (w, w->phys_cursor.x);
w32_system_caret_y
= (WINDOW_TO_FRAME_PIXEL_Y (w, w->phys_cursor.y)
+ glyph_row->ascent - w->phys_cursor_ascent);
/* If the size of the active cursor changed, destroy the old
system caret. */
if (w32_system_caret_hwnd
&& (w32_system_caret_height != w->phys_cursor_height))
PostMessage (hwnd, WM_EMACS_DESTROY_CARET, 0, 0);
w32_system_caret_height = w->phys_cursor_height;
/* Move the system caret. */
PostMessage (hwnd, WM_EMACS_TRACK_CARET, 0, 0);
}
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);
return;
}
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 ();
}
}
}
/* Icons. */
int
x_bitmap_icon (f, icon)
struct frame *f;
Lisp_Object icon;
{
HANDLE hicon;
if (FRAME_W32_WINDOW (f) == 0)
return 1;
if (NILP (icon))
hicon = LoadIcon (hinst, EMACS_CLASS);
else if (STRINGP (icon))
hicon = LoadImage (NULL, (LPCTSTR) SDATA (icon), IMAGE_ICON, 0, 0,
LR_DEFAULTSIZE | LR_LOADFROMFILE);
else if (SYMBOLP (icon))
{
LPCTSTR name;
if (EQ (icon, intern ("application")))
name = (LPCTSTR) IDI_APPLICATION;
else if (EQ (icon, intern ("hand")))
name = (LPCTSTR) IDI_HAND;
else if (EQ (icon, intern ("question")))
name = (LPCTSTR) IDI_QUESTION;
else if (EQ (icon, intern ("exclamation")))
name = (LPCTSTR) IDI_EXCLAMATION;
else if (EQ (icon, intern ("asterisk")))
name = (LPCTSTR) IDI_ASTERISK;
else if (EQ (icon, intern ("winlogo")))
name = (LPCTSTR) IDI_WINLOGO;
else
return 1;
hicon = LoadIcon (NULL, name);
}
else
return 1;
if (hicon == NULL)
return 1;
PostMessage (FRAME_W32_WINDOW (f), WM_SETICON, (WPARAM) ICON_BIG,
(LPARAM) hicon);
return 0;
}
/************************************************************************
Handling X errors
************************************************************************/
/* Display Error Handling functions not used on W32. Listing them here
helps diff stay in step when comparing w32term.c with xterm.c.
x_error_catcher (display, error)
x_catch_errors (dpy)
x_catch_errors_unwind (old_val)
x_check_errors (dpy, format)
x_had_errors_p (dpy)
x_clear_errors (dpy)
x_uncatch_errors (dpy, count)
x_trace_wire ()
x_connection_signal (signalnum)
x_connection_closed (dpy, error_message)
x_error_quitter (display, error)
x_error_handler (display, error)
x_io_error_quitter (display)
*/
/* 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) = FONT_WIDTH (FRAME_FONT (f));
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_W32_WINDOW (f) != 0)
{
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;
return build_string (fontsetname);
}
/***********************************************************************
TODO: W32 Input Methods
***********************************************************************/
/* Listing missing functions from xterm.c helps diff stay in step.
xim_destroy_callback (xim, client_data, call_data)
xim_open_dpy (dpyinfo, resource_name)
struct xim_inst_t
xim_instantiate_callback (display, client_data, call_data)
xim_initialize (dpyinfo, resource_name)
xim_close_dpy (dpyinfo)
*/
/* Calculate the absolute position in frame F
from its current recorded position values and gravity. */
void
x_calc_absolute_position (f)
struct frame *f;
{
POINT pt;
int flags = f->size_hint_flags;
pt.x = pt.y = 0;
/* Find the position of the outside upper-left corner of
the inner window, with respect to the outer window.
But do this only if we will need the results. */
if (f->output_data.w32->parent_desc != FRAME_W32_DISPLAY_INFO (f)->root_window)
{
BLOCK_INPUT;
MapWindowPoints (FRAME_W32_WINDOW (f),
f->output_data.w32->parent_desc,
&pt, 1);
UNBLOCK_INPUT;
}
{
RECT rt;
rt.left = rt.right = rt.top = rt.bottom = 0;
BLOCK_INPUT;
AdjustWindowRect(&rt, f->output_data.w32->dwStyle,
FRAME_EXTERNAL_MENU_BAR (f));
UNBLOCK_INPUT;
pt.x += (rt.right - rt.left);
pt.y += (rt.bottom - rt.top);
}
/* Treat negative positions as relative to the leftmost bottommost
position that fits on the screen. */
if (flags & XNegative)
f->left_pos = (FRAME_W32_DISPLAY_INFO (f)->width
- 2 * f->border_width - pt.x
- FRAME_PIXEL_WIDTH (f)
+ f->left_pos);
if (flags & YNegative)
f->top_pos = (FRAME_W32_DISPLAY_INFO (f)->height
- 2 * f->border_width - pt.y
- FRAME_PIXEL_HEIGHT (f)
+ 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;
my_set_window_pos (FRAME_W32_WINDOW (f),
NULL,
modified_left, modified_top,
0, 0,
SWP_NOZORDER | SWP_NOSIZE | SWP_NOACTIVATE);
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 (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;
}
}
}
/* 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;
{
int pixelwidth, pixelheight;
BLOCK_INPUT;
check_frame_size (f, &rows, &cols);
f->scroll_bar_actual_width
= FRAME_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);
{
RECT rect;
rect.left = rect.top = 0;
rect.right = pixelwidth;
rect.bottom = pixelheight;
AdjustWindowRect(&rect, f->output_data.w32->dwStyle,
FRAME_EXTERNAL_MENU_BAR (f));
my_set_window_pos (FRAME_W32_WINDOW (f),
NULL,
0, 0,
rect.right - rect.left,
rect.bottom - rect.top,
SWP_NOZORDER | SWP_NOMOVE | SWP_NOACTIVATE);
}
/* 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);
/* 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_pixel_position (struct frame *f, int pix_x, int pix_y);
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);
x_set_mouse_pixel_position (f, pix_x, pix_y);
}
void
x_set_mouse_pixel_position (f, pix_x, pix_y)
struct frame *f;
int pix_x, pix_y;
{
RECT rect;
POINT pt;
BLOCK_INPUT;
GetClientRect (FRAME_W32_WINDOW (f), &rect);
pt.x = rect.left + pix_x;
pt.y = rect.top + pix_y;
ClientToScreen (FRAME_W32_WINDOW (f), &pt);
SetCursorPos (pt.x, pt.y);
UNBLOCK_INPUT;
}
/* focus shifting, raising and lowering. */
void
x_focus_on_frame (f)
struct frame *f;
{
struct w32_display_info *dpyinfo = &one_w32_display_info;
/* Give input focus to frame. */
BLOCK_INPUT;
#if 0
/* Try not to change its Z-order if possible. */
if (x_window_to_frame (dpyinfo, GetForegroundWindow ()))
my_set_focus (f, FRAME_W32_WINDOW (f));
else
#endif
my_set_foreground_window (FRAME_W32_WINDOW (f));
UNBLOCK_INPUT;
}
void
x_unfocus_frame (f)
struct frame *f;
{
}
/* Raise frame F. */
void
x_raise_frame (f)
struct frame *f;
{
BLOCK_INPUT;
/* Strictly speaking, raise-frame should only change the frame's Z
order, leaving input focus unchanged. This is reasonable behaviour
on X where the usual policy is point-to-focus. However, this
behaviour would be very odd on Windows where the usual policy is
click-to-focus.
On X, if the mouse happens to be over the raised frame, it gets
input focus anyway (so the window with focus will never be
completely obscured) - if not, then just moving the mouse over it
is sufficient to give it focus. On Windows, the user must actually
click on the frame (preferrably the title bar so as not to move
point), which is more awkward. Also, no other Windows program
raises a window to the top but leaves another window (possibly now
completely obscured) with input focus.
Because there is a system setting on Windows that allows the user
to choose the point to focus policy, we make the strict semantics
optional, but by default we grab focus when raising. */
if (NILP (Vw32_grab_focus_on_raise))
{
/* The obvious call to my_set_window_pos doesn't work if Emacs is
not already the foreground application: the frame is raised
above all other frames belonging to us, but not above the
current top window. To achieve that, we have to resort to this
more cumbersome method. */
HDWP handle = BeginDeferWindowPos (2);
if (handle)
{
DeferWindowPos (handle,
FRAME_W32_WINDOW (f),
HWND_TOP,
0, 0, 0, 0,
SWP_NOSIZE | SWP_NOMOVE | SWP_NOACTIVATE);
DeferWindowPos (handle,
GetForegroundWindow (),
FRAME_W32_WINDOW (f),
0, 0, 0, 0,
SWP_NOSIZE | SWP_NOMOVE | SWP_NOACTIVATE);
EndDeferWindowPos (handle);
}
}
else
{
my_set_foreground_window (FRAME_W32_WINDOW (f));
}
UNBLOCK_INPUT;
}
/* Lower frame F. */
void
x_lower_frame (f)
struct frame *f;
{
BLOCK_INPUT;
my_set_window_pos (FRAME_W32_WINDOW (f),
HWND_BOTTOM,
0, 0, 0, 0,
SWP_NOSIZE | SWP_NOMOVE | SWP_NOACTIVATE);
UNBLOCK_INPUT;
}
static void
w32_frame_raise_lower (f, raise_flag)
FRAME_PTR f;
int raise_flag;
{
if (! FRAME_W32_P (f))
return;
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;
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.w32->asked_for_visible)
x_set_offset (f, f->left_pos, f->top_pos, 0);
f->output_data.w32->asked_for_visible = 1;
/* my_show_window (f, FRAME_W32_WINDOW (f), f->async_iconified ? SW_RESTORE : SW_SHOW); */
my_show_window (f, FRAME_W32_WINDOW (f), SW_SHOWNORMAL);
}
/* 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 come after we set COUNT. */
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. */
/* TODO: x_sync equivalent? */
/* 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. */
int old_poll_suppress_count = poll_suppress_count;
poll_suppress_count = 1;
poll_for_input_1 ();
poll_suppress_count = old_poll_suppress_count;
}
}
FRAME_SAMPLE_VISIBILITY (f);
}
}
/* Change from mapped state to withdrawn state. */
/* Make the frame visible (mapped and not iconified). */
x_make_frame_invisible (f)
struct frame *f;
{
/* Don't keep the highlight on an invisible frame. */
if (FRAME_W32_DISPLAY_INFO (f)->x_highlight_frame == f)
FRAME_W32_DISPLAY_INFO (f)->x_highlight_frame = 0;
BLOCK_INPUT;
my_show_window (f, FRAME_W32_WINDOW (f), SW_HIDE);
/* 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;
UNBLOCK_INPUT;
}
/* Change window state from mapped to iconified. */
void
x_iconify_frame (f)
struct frame *f;
{
Lisp_Object type;
/* Don't keep the highlight on an invisible frame. */
if (FRAME_W32_DISPLAY_INFO (f)->x_highlight_frame == f)
FRAME_W32_DISPLAY_INFO (f)->x_highlight_frame = 0;
if (f->async_iconified)
return;
BLOCK_INPUT;
type = x_icon_type (f);
if (!NILP (type))
x_bitmap_icon (f, type);
/* Simulate the user minimizing the frame. */
SendMessage (FRAME_W32_WINDOW (f), WM_SYSCOMMAND, SC_MINIMIZE, 0);
UNBLOCK_INPUT;
}
/* Free X resources of frame F. */
void
x_free_frame_resources (f)
struct frame *f;
{
struct w32_display_info *dpyinfo = FRAME_W32_DISPLAY_INFO (f);
BLOCK_INPUT;
if (FRAME_W32_WINDOW (f))
my_destroy_window (f, FRAME_W32_WINDOW (f));
free_frame_menubar (f);
unload_color (f, f->output_data.x->foreground_pixel);
unload_color (f, f->output_data.x->background_pixel);
unload_color (f, f->output_data.w32->cursor_pixel);
unload_color (f, f->output_data.w32->cursor_foreground_pixel);
unload_color (f, f->output_data.w32->border_pixel);
unload_color (f, f->output_data.w32->mouse_pixel);
if (f->output_data.w32->white_relief.allocated_p)
unload_color (f, f->output_data.w32->white_relief.pixel);
if (f->output_data.w32->black_relief.allocated_p)
unload_color (f, f->output_data.w32->black_relief.pixel);
if (FRAME_FACE_CACHE (f))
free_frame_faces (f);
xfree (f->output_data.w32);
f->output_data.w32 = NULL;
if (f == dpyinfo->w32_focus_frame)
dpyinfo->w32_focus_frame = 0;
if (f == dpyinfo->w32_focus_event_frame)
dpyinfo->w32_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 window of frame F. */
x_destroy_window (f)
struct frame *f;
{
struct w32_display_info *dpyinfo = FRAME_W32_DISPLAY_INFO (f);
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). */
void
x_wm_set_size_hint (f, flags, user_position)
struct frame *f;
long flags;
int user_position;
{
Window window = FRAME_W32_WINDOW (f);
enter_crit ();
SetWindowLong (window, WND_FONTWIDTH_INDEX, FRAME_COLUMN_WIDTH (f));
SetWindowLong (window, WND_LINEHEIGHT_INDEX, FRAME_LINE_HEIGHT (f));
SetWindowLong (window, WND_BORDER_INDEX, FRAME_INTERNAL_BORDER_WIDTH (f));
SetWindowLong (window, WND_SCROLLBAR_INDEX, f->scroll_bar_actual_width);
leave_crit ();
}
/* Window manager things */
void
x_wm_set_icon_position (f, icon_x, icon_y)
struct frame *f;
int icon_x, icon_y;
{
#if 0
Window window = FRAME_W32_WINDOW (f);
f->display.x->wm_hints.flags |= IconPositionHint;
f->display.x->wm_hints.icon_x = icon_x;
f->display.x->wm_hints.icon_y = icon_y;
XSetWMHints (FRAME_X_DISPLAY (f), window, &f->display.x->wm_hints);
#endif
}
/***********************************************************************
Fonts
***********************************************************************/
/* The following functions are listed here to help diff stay in step
with xterm.c. See w32fns.c for definitions.
x_get_font_info (f, font_idx)
x_list_fonts (f, pattern, size, maxnames)
*/
#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 w32_display_info *dpyinfo = FRAME_W32_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;
{
/*
* TODO: Windows does not appear to offer min bound, only
* average and maximum width, and maximum height.
*/
*h = FONT_HEIGHT (font);
*w = FONT_WIDTH (font);
}
/* 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. */
int
x_compute_min_glyph_bounds (f)
struct frame *f;
{
int i;
struct w32_display_info *dpyinfo = FRAME_W32_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);
}
/* The following functions are listed here to help diff stay in step
with xterm.c. See w32fns.c for definitions.
x_load_font (f, fontname, size)
x_query_font (f, fontname)
x_find_ccl_program (fontp)
*/
/***********************************************************************
Initialization
***********************************************************************/
static int w32_initialized = 0;
void
w32_initialize_display_info (display_name)
Lisp_Object display_name;
{
struct w32_display_info *dpyinfo = &one_w32_display_info;
bzero (dpyinfo, sizeof (*dpyinfo));
/* Put it on w32_display_name_list. */
w32_display_name_list = Fcons (Fcons (display_name, Qnil),
w32_display_name_list);
dpyinfo->name_list_element = XCAR (w32_display_name_list);
dpyinfo->w32_id_name
= (char *) xmalloc (SCHARS (Vinvocation_name)
+ SCHARS (Vsystem_name)
+ 2);
sprintf (dpyinfo->w32_id_name, "%s@%s",
SDATA (Vinvocation_name), SDATA (Vsystem_name));
/* Default Console mode values - overridden when running in GUI mode
with values obtained from system metrics. */
dpyinfo->resx = 1;
dpyinfo->resy = 1;
dpyinfo->height_in = 1;
dpyinfo->width_in = 1;
dpyinfo->n_planes = 1;
dpyinfo->n_cbits = 4;
dpyinfo->n_fonts = 0;
dpyinfo->smallest_font_height = 1;
dpyinfo->smallest_char_width = 1;
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_hidden = 0;
dpyinfo->vertical_scroll_bar_cursor = w32_load_cursor (IDC_ARROW);
/* TODO: dpyinfo->gray */
}
/* Create an xrdb-style database of resources to supercede registry settings.
The database is just a concatenation of C strings, finished by an additional
\0. The string are submitted to some basic normalization, so
[ *]option[ *]:[ *]value...
becomes
option:value...
but any whitespace following value is not removed. */
static char *
w32_make_rdb (xrm_option)
char *xrm_option;
{
char *buffer = xmalloc (strlen (xrm_option) + 2);
char *current = buffer;
char ch;
int in_option = 1;
int before_value = 0;
do {
ch = *xrm_option++;
if (ch == '\n')
{
*current++ = '\0';
in_option = 1;
before_value = 0;
}
else if (ch != ' ')
{
*current++ = ch;
if (in_option && (ch == ':'))
{
in_option = 0;
before_value = 1;
}
else if (before_value)
{
before_value = 0;
}
}
else if (!(in_option || before_value))
{
*current++ = ch;
}
} while (ch);
*current = '\0';
return buffer;
}
struct w32_display_info *
w32_term_init (display_name, xrm_option, resource_name)
Lisp_Object display_name;
char *xrm_option;
char *resource_name;
{
struct w32_display_info *dpyinfo;
HDC hdc;
BLOCK_INPUT;
if (!w32_initialized)
{
w32_initialize ();
w32_initialized = 1;
}
w32_initialize_display_info (display_name);
dpyinfo = &one_w32_display_info;
dpyinfo->xrdb = xrm_option ? w32_make_rdb (xrm_option) : NULL;
/* Put this display on the chain. */
dpyinfo->next = x_display_list;
x_display_list = dpyinfo;
hdc = GetDC (GetDesktopWindow ());
dpyinfo->height = GetDeviceCaps (hdc, VERTRES);
dpyinfo->width = GetDeviceCaps (hdc, HORZRES);
dpyinfo->root_window = GetDesktopWindow ();
dpyinfo->n_planes = GetDeviceCaps (hdc, PLANES);
dpyinfo->n_cbits = GetDeviceCaps (hdc, BITSPIXEL);
dpyinfo->resx = GetDeviceCaps (hdc, LOGPIXELSX);
dpyinfo->resy = GetDeviceCaps (hdc, LOGPIXELSY);
dpyinfo->has_palette = GetDeviceCaps (hdc, RASTERCAPS) & RC_PALETTE;
dpyinfo->image_cache = make_image_cache ();
dpyinfo->height_in = dpyinfo->height / dpyinfo->resx;
dpyinfo->width_in = dpyinfo->width / dpyinfo->resy;
ReleaseDC (GetDesktopWindow (), hdc);
/* initialise palette with white and black */
{
XColor color;
w32_defined_color (0, "white", &color, 1);
w32_defined_color (0, "black", &color, 1);
}
/* Create Fringe Bitmaps and store them for later use.
On W32, bitmaps are all unsigned short, as Windows requires
bitmap data to be Word aligned. For some reason they are
horizontally reflected compared to how they appear on X, so we
need to bitswap and convert to unsigned shorts before creating
the bitmaps. */
w32_init_fringe ();
#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) */
UNBLOCK_INPUT;
return dpyinfo;
}
/* Get rid of display DPYINFO, assuming all frames are already gone. */
void
x_delete_display (dpyinfo)
struct w32_display_info *dpyinfo;
{
/* Discard this display from w32_display_name_list and w32_display_list.
We can't use Fdelq because that can quit. */
if (! NILP (w32_display_name_list)
&& EQ (XCAR (w32_display_name_list), dpyinfo->name_list_element))
w32_display_name_list = XCDR (w32_display_name_list);
else
{
Lisp_Object tail;
tail = w32_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);
}
}
/* free palette table */
{
struct w32_palette_entry * plist;
plist = dpyinfo->color_list;
while (plist)
{
struct w32_palette_entry * pentry = plist;
plist = plist->next;
xfree (pentry);
}
dpyinfo->color_list = NULL;
if (dpyinfo->palette)
DeleteObject(dpyinfo->palette);
}
xfree (dpyinfo->font_table);
xfree (dpyinfo->w32_id_name);
w32_reset_fringes ();
}
/* Set up use of W32. */
DWORD w32_msg_worker ();
void
x_flush (struct frame * f)
{ /* Nothing to do */ }
extern frame_parm_handler w32_frame_parm_handlers[];
static struct redisplay_interface w32_redisplay_interface =
{
w32_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,
0, /* flush_display_optional */
x_clear_window_mouse_face,
w32_get_glyph_overhangs,
x_fix_overlapping_area,
w32_draw_fringe_bitmap,
w32_define_fringe_bitmap,
w32_destroy_fringe_bitmap,
w32_per_char_metric,
w32_encode_char,
NULL, /* w32_compute_glyph_string_overhangs */
x_draw_glyph_string,
w32_define_frame_cursor,
w32_clear_frame_area,
w32_draw_window_cursor,
w32_draw_vertical_window_border,
w32_shift_glyphs_for_insert
};
void
w32_initialize ()
{
rif = &w32_redisplay_interface;
/* MSVC does not type K&R functions with no arguments correctly, and
so we must explicitly cast them. */
clear_frame_hook = (void (*)(void)) x_clear_frame;
ring_bell_hook = (void (*)(void)) w32_ring_bell;
update_begin_hook = x_update_begin;
update_end_hook = x_update_end;
read_socket_hook = w32_read_socket;
frame_up_to_date_hook = w32_frame_up_to_date;
mouse_position_hook = w32_mouse_position;
frame_rehighlight_hook = w32_frame_rehighlight;
frame_raise_lower_hook = w32_frame_raise_lower;
set_vertical_scroll_bar_hook = w32_set_vertical_scroll_bar;
condemn_scroll_bars_hook = w32_condemn_scroll_bars;
redeem_scroll_bar_hook = w32_redeem_scroll_bar;
judge_scroll_bars_hook = w32_judge_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;
w32_system_caret_hwnd = NULL;
w32_system_caret_height = 0;
w32_system_caret_x = 0;
w32_system_caret_y = 0;
last_tool_bar_item = -1;
any_help_event_p = 0;
/* Initialize input mode: interrupt_input off, no flow control, allow
8 bit character input, standard quit char. */
Fset_input_mode (Qnil, Qnil, make_number (2), Qnil);
/* Create the window thread - it will terminate itself or when the app terminates */
init_crit ();
dwMainThreadId = GetCurrentThreadId ();
DuplicateHandle (GetCurrentProcess (), GetCurrentThread (),
GetCurrentProcess (), &hMainThread, 0, TRUE, DUPLICATE_SAME_ACCESS);
/* Wait for thread to start */
{
MSG msg;
PeekMessage (&msg, NULL, 0, 0, PM_NOREMOVE);
hWindowsThread = CreateThread (NULL, 0,
(LPTHREAD_START_ROUTINE) w32_msg_worker,
0, 0, &dwWindowsThreadId);
GetMessage (&msg, NULL, WM_EMACS_DONE, WM_EMACS_DONE);
}
/* It is desirable that mainThread should have the same notion of
focus window and active window as windowsThread. Unfortunately, the
following call to AttachThreadInput, which should do precisely what
we need, causes major problems when Emacs is linked as a console
program. Unfortunately, we have good reasons for doing that, so
instead we need to send messages to windowsThread to make some API
calls for us (ones that affect, or depend on, the active/focus
window state. */
#ifdef ATTACH_THREADS
AttachThreadInput (dwMainThreadId, dwWindowsThreadId, TRUE);
#endif
/* Dynamically link to optional system components. */
{
HANDLE user_lib = LoadLibrary ("user32.dll");
#define LOAD_PROC(fn) pfn##fn = (void *) GetProcAddress (user_lib, #fn)
/* New proportional scroll bar functions. */
LOAD_PROC (SetScrollInfo);
LOAD_PROC (GetScrollInfo);
#undef LOAD_PROC
FreeLibrary (user_lib);
/* If using proportional scroll bars, ensure handle is at least 5 pixels;
otherwise use the fixed height. */
vertical_scroll_bar_min_handle = (pfnSetScrollInfo != NULL) ? 5 :
GetSystemMetrics (SM_CYVTHUMB);
/* For either kind of scroll bar, take account of the arrows; these
effectively form the border of the main scroll bar range. */
vertical_scroll_bar_top_border = vertical_scroll_bar_bottom_border
= GetSystemMetrics (SM_CYVSCROLL);
}
}
void
syms_of_w32term ()
{
staticpro (&w32_display_name_list);
w32_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");
DEFVAR_INT ("w32-num-mouse-buttons",
&w32_num_mouse_buttons,
doc: /* Number of physical mouse buttons. */);
w32_num_mouse_buttons = 2;
DEFVAR_LISP ("w32-swap-mouse-buttons",
&Vw32_swap_mouse_buttons,
doc: /* Swap the mapping of middle and right mouse buttons.
When nil, middle button is mouse-2 and right button is mouse-3. */);
Vw32_swap_mouse_buttons = Qnil;
DEFVAR_LISP ("w32-grab-focus-on-raise",
&Vw32_grab_focus_on_raise,
doc: /* Raised frame grabs input focus.
When t, `raise-frame' grabs input focus as well. This fits well
with the normal Windows click-to-focus policy, but might not be
desirable when using a point-to-focus policy. */);
Vw32_grab_focus_on_raise = Qt;
DEFVAR_LISP ("w32-capslock-is-shiftlock",
&Vw32_capslock_is_shiftlock,
doc: /* Apply CapsLock state to non character input keys.
When nil, CapsLock only affects normal character input keys. */);
Vw32_capslock_is_shiftlock = Qnil;
DEFVAR_LISP ("w32-recognize-altgr",
&Vw32_recognize_altgr,
doc: /* Recognize right-alt and left-ctrl as AltGr.
When nil, the right-alt and left-ctrl key combination is
interpreted normally. */);
Vw32_recognize_altgr = Qt;
DEFVAR_BOOL ("w32-enable-unicode-output",
&w32_enable_unicode_output,
doc: /* Enable the use of Unicode for text output if non-nil.
Unicode output may prevent some third party applications for displaying
Far-East Languages on Windows 95/98 from working properly.
NT uses Unicode internally anyway, so this flag will probably have no
affect on NT machines. */);
w32_enable_unicode_output = 1;
DEFVAR_BOOL ("w32-use-visible-system-caret",
&w32_use_visible_system_caret,
doc: /* Flag to make the system caret visible.
When this is non-nil, Emacs will indicate the position of point by
using the system caret instead of drawing its own cursor. Some screen
reader software does not track the system cursor properly when it is
invisible, and gets confused by Emacs drawing its own cursor, so this
variable is initialized to t when Emacs detects that screen reader
software is running as it starts up.
When this variable is set, other variables affecting the appearance of
the cursor have no effect. */);
/* Initialize w32_use_visible_system_caret based on whether a screen
reader is in use. */
if (!SystemParametersInfo (SPI_GETSCREENREADER, 0,
&w32_use_visible_system_caret, 0))
w32_use_visible_system_caret = 0;
DEFVAR_LISP ("x-toolkit-scroll-bars", &Vx_toolkit_scroll_bars,
doc: /* If not nil, Emacs uses toolkit scroll bars. */);
Vx_toolkit_scroll_bars = Qt;
staticpro (&last_mouse_motion_frame);
last_mouse_motion_frame = Qnil;
}
/* arch-tag: 5fa70624-ab86-499c-8a85-473958ee4646
(do not change this comment) */
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