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emacs/lwlib/xlwmenuP.h
Jan D f0bd159891 Don't redraw lucid menus more than needed. Use double buffer to reduce flicker.
* xlwmenu.c: Include Shell.h, remove duplicate declaration of
XlwMenuRedisplay.
(display_menu_item): Replace ws->window with ws->pixmap, remove
call to XftDrawRect.
(display_menu): Remove this and that argument.  Remove
just_compute_this_one_p. Fill pixmap at start and copy it to window
at end.
(expose_cb): New function.
(make_windows_if_needed): Replace XCreateWindow with XtCreatePopup.
Add eventhandler for expose to expose_cb.  Remove creation of
xft_draw.
(create_pixmap_for_menu): New function.
(remap_menubar): Pop down menus that aren't the same as in old_stack.
Set width, heigh, x, y on widget with XtVaSetValues.  Call
create_pixmap_for_menu.
Replace XUnmapWindow with XtPopdown.
Remowe two last parameters to display_menu.
(map_event_to_widget_value, XlwMenuRedisplay, Key, Select)
(pop_up_menu): Remowe two last parameters to display_menu.
(XlwMenuRealize): Call create_pixmap_for_menu, set w and pixmap.
Remove call to XftDrawCreate.
(XlwMenuDestroy): Free pixmap.  Call XtDestroyWidget instead of
XDestroyWindow.
(handle_motion_event): Only call handle_single_motion_event once.

* xlwmenuP.h (window_state): Add pixmap and w.
2010-04-17 19:43:03 +02:00

147 lines
3.6 KiB
C

/* Internals of a lightweight menubar widget.
Copyright (C) 1992 Lucid, Inc.
Copyright (C) 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010
Free Software Foundation, Inc.
This file is part of the Lucid Widget Library.
The Lucid Widget Library 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 1, or (at your option)
any later version.
The Lucid Widget Library 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., 51 Franklin Street, Fifth Floor,
Boston, MA 02110-1301, USA. */
#ifndef _XlwMenuP_h
#define _XlwMenuP_h
#include "xlwmenu.h"
#include <X11/CoreP.h>
#ifdef HAVE_XFT
#include <X11/Xft/Xft.h>
#endif
/* Elements in the stack arrays. */
typedef struct _window_state
{
Widget w;
Window window;
Pixmap pixmap;
Position x;
Position y;
Dimension width;
Dimension height;
Dimension label_width;
int max_rest_width;
/* Width of toggle buttons or radio buttons. */
Dimension button_width;
#ifdef HAVE_XFT
XftDraw* xft_draw;
#endif
} window_state;
/* New fields for the XlwMenu widget instance record */
typedef struct _XlwMenu_part
{
/* slots set by the resources */
#ifdef HAVE_X_I18N
XFontSet fontSet;
XFontSetExtents *font_extents;
#endif
#ifdef HAVE_XFT
String faceName;
int default_face;
XftFont* xft_font;
XftColor xft_fg, xft_bg, xft_disabled_fg;
#endif
XFontStruct* font;
Pixel foreground;
Pixel disabled_foreground;
Pixel button_foreground;
Dimension margin;
Dimension horizontal_spacing;
Dimension vertical_spacing;
Dimension arrow_spacing;
Dimension shadow_thickness;
Pixel top_shadow_color;
Pixel bottom_shadow_color;
Pixmap top_shadow_pixmap;
Pixmap bottom_shadow_pixmap;
Cursor cursor_shape;
XtCallbackList open;
XtCallbackList select, highlight;
XtCallbackList enter, leave;
widget_value* contents;
int horizontal;
/* True means top_shadow_color and/or bottom_shadow_color must be freed. */
unsigned free_top_shadow_color_p : 1;
unsigned free_bottom_shadow_color_p : 1;
/* State of the XlwMenu */
int top_depth;
int old_depth;
widget_value** old_stack;
int old_stack_length;
widget_value* inside_entry;
/* New state after the user moved */
int new_depth;
widget_value** new_stack;
int new_stack_length;
/* Window resources */
window_state* windows;
int windows_length;
/* Internal part, set by the XlwMenu */
GC foreground_gc;
GC button_gc;
GC background_gc;
GC disabled_gc;
GC inactive_button_gc;
GC shadow_top_gc;
GC shadow_bottom_gc;
Cursor cursor;
Boolean popped_up;
Pixmap gray_pixmap;
} XlwMenuPart;
/* Full instance record declaration */
typedef struct _XlwMenuRec
{
CorePart core;
XlwMenuPart menu;
} XlwMenuRec;
/* New fields for the XlwMenu widget class record */
typedef struct
{
int dummy;
} XlwMenuClassPart;
/* Full class record declaration. */
typedef struct _XlwMenuClassRec
{
CoreClassPart core_class;
XlwMenuClassPart menu_class;
} XlwMenuClassRec;
/* Class pointer. */
extern XlwMenuClassRec xlwMenuClassRec;
#endif /* _XlwMenuP_h */
/* arch-tag: 18d7fc41-ffa0-47a3-a49f-3469900c7a25
(do not change this comment) */