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[xemacs-hg @ 2003-02-07 11:50:50 by ben] fixes for menu crashes + better preemption behavior This contains two related changes: (1) Fix problems with reentrant calling of lwlib and associated crashes when selecting menu items. (2) Improve redisplay handling of preemption. Turn on lazy lock and hold down page-down or page-up and you'll see what I mean. They are related because they both touch on the code that retrieves events and handles the internal queues. console-msw.h, event-msw.c, event-stream.c, events.h, menubar-msw.c, menubar-x.c, menubar.h: mswindows_protect_modal_loop() has been generalized to event_stream_protect_modal_loop(), and moved to event-stream.c. mswindows_in_modal_loop ->in_modal_loop likewise. Changes in event-msw.c and menubar-msw.c for the new names and calling format (use structures instead of static variables in menubar-msw.c). Delete former in_menu_callback and use in_modal_loop in its place. Remove emacs_mswindows_quit_check_disallowed_p(), superseded by in_modal_loop. Use event_stream_protect_modal_loop() in pre_activate_callback() so that we get no lwlib reentrancy. Rearrange some of the code in event-msw.c to be grouped better. Make mswindows_drain_windows_queue() respect in_modal_loop and do nothing if so. cmdloop.c, event-stream.c: Don't conditionalize on LWLIB_MENUBARS_LUCID when giving error when in_modal_loop, and give better error. event-Xt.c, event-gtk.c: If in_modal_loop, only retrieve process and timeout events. Don't retrieve any X events because processing them can lead to reentrancy in lwlib -> death. event-stream.c: Remove unused parameter to check_event_stream_ok() and change all callers. lisp.h, event-stream.c: Rearrange some functions for increased clarity -- in particular, group all the input-pending/QUIT-related stuff together, and put right next to next-event stuff, to which it's related. Add the concept of "HOW_MANY" -- when asking whether user input is pending, you can ask if at least HOW_MANY events are pending, not just if any are. Add parameter to detect_input_pending() for this. Change recursive_sit_for from a Lisp_Object (which could only be Qt or Qnil) to an int, like it should be. event-Xt.c, event-gtk.c, event-xlike-inc.c: New file. Abstract out similar code in event_{Xt/gtk}_pending_p() and write only once, using include-file tricks. Rewrite this function to implement HOW_MANY and only process events when not in_modal_loop. event-msw.c: Implement HOW_MANY and only process events when not in_modal_loop. event-tty.c: Implement HOW_MANY. redisplay.c: Add var `max-preempts' to control maximum number of preempts. (#### perhaps not useful) Rewrite preemption check so that, rather than preempting when any user events are available, only preempt when a certain number (currently 4) of them are backed up. This effectively allows redisplay to proceed to completion in the presence of a fast auto-repeat (usually the auto-repeating is generated dynamically as necessary), and you get much better display behavior with lazy-lock active. event-unixoid.c: Comment changes. event-stream.c: Rewrite discard-input much more simply and safely using the drain-queue functions. I think the old version might loop forever if called when in_modal_loop. SEMI-UNRELATED CHANGES: ----------------------- event-stream.c: Turn QUIT-checking back on when running the pre-idle hook so it can be quit out of. indent.c: Document exact functioning of `vertical-motion' better, and its differences from GNU Emacs.
author ben
date Fri, 07 Feb 2003 11:50:54 +0000
parents 6728e641994e
children 308d34e9f07d
line wrap: on
line source

/* mswindows-specific glyphs and related.
   Copyright (C) 1998 Andy Piper

This file is part of XEmacs.

XEmacs 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.

XEmacs 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 XEmacs; see the file COPYING.  If not, write to
the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
Boston, MA 02111-1307, USA.  */

/* Synched up with:  Not in FSF. */

#ifndef INCLUDED_glyphs_msw_h_
#define INCLUDED_glyphs_msw_h_

#ifdef HAVE_MS_WINDOWS

#include "syswindows.h"
#include "glyphs.h"

/****************************************************************************
 *                         Image-Instance Object                            *
 ****************************************************************************/

struct mswindows_image_instance_data
{
  HBITMAP *bitmaps;
  HICON icon;
  int real_width, real_height;
};

#define MSWINDOWS_IMAGE_INSTANCE_DATA(i) \
((struct mswindows_image_instance_data *) (i)->data)

#define IMAGE_INSTANCE_MSWINDOWS_BITMAP(i) \
     (MSWINDOWS_IMAGE_INSTANCE_DATA (i)->bitmaps[0])
#define IMAGE_INSTANCE_MSWINDOWS_BITMAP_SLICE(i,slice) \
     (MSWINDOWS_IMAGE_INSTANCE_DATA (i)->bitmaps[slice])
#define IMAGE_INSTANCE_MSWINDOWS_BITMAP_SLICES(i) \
     (MSWINDOWS_IMAGE_INSTANCE_DATA (i)->bitmaps)
#define IMAGE_INSTANCE_MSWINDOWS_MASK(i) \
     (* (HBITMAP *) &(IMAGE_INSTANCE_PIXMAP_MASK (i)))		/* Make it lvalue */
#define IMAGE_INSTANCE_MSWINDOWS_ICON(i) \
     (MSWINDOWS_IMAGE_INSTANCE_DATA (i)->icon)
#define IMAGE_INSTANCE_MSWINDOWS_BITMAP_REAL_WIDTH(i) \
     (MSWINDOWS_IMAGE_INSTANCE_DATA (i)->real_width)
#define IMAGE_INSTANCE_MSWINDOWS_BITMAP_REAL_HEIGHT(i) \
     (MSWINDOWS_IMAGE_INSTANCE_DATA (i)->real_height)

#define XIMAGE_INSTANCE_MSWINDOWS_BITMAP(i) \
  IMAGE_INSTANCE_MSWINDOWS_BITMAP (XIMAGE_INSTANCE (i))
#define XIMAGE_INSTANCE_MSWINDOWS_BITMAP_SLICE(i, slice) \
  IMAGE_INSTANCE_MSWINDOWS_BITMAP_SLICE (XIMAGE_INSTANCE (i, slice))
#define XIMAGE_INSTANCE_MSWINDOWS_BITMAP_SLICES(i) \
  IMAGE_INSTANCE_MSWINDOWS_BITMAP_SLICES (XIMAGE_INSTANCE (i))
#define XIMAGE_INSTANCE_MSWINDOWS_MASK(i) \
  IMAGE_INSTANCE_MSWINDOWS_MASK (XIMAGE_INSTANCE (i))
#define XIMAGE_INSTANCE_MSWINDOWS_ICON(i) \
  IMAGE_INSTANCE_MSWINDOWS_ICON (XIMAGE_INSTANCE (i))

int mswindows_resize_dibitmap_instance (Lisp_Image_Instance *ii,
					struct frame *f,
					int newx, int newy);
HBITMAP mswindows_create_resized_bitmap (Lisp_Image_Instance *ii,
					 struct frame *f,
					 int newx, int newy);
HBITMAP mswindows_create_resized_mask (Lisp_Image_Instance *ii,
				       struct frame *f,
				       int newx, int newy);
void mswindows_initialize_image_instance_icon (Lisp_Image_Instance *image,
					       int cursor);

#define WIDGET_INSTANCE_MSWINDOWS_HANDLE(i) \
     (HWND) (IMAGE_INSTANCE_SUBWINDOW_ID (i))

#define XWIDGET_INSTANCE_MSWINDOWS_HANDLE(i) \
  WIDGET_INSTANCE_MSWINDOWS_HANDLE (XIMAGE_INSTANCE (i))

struct mswindows_subwindow_data
{
  HWND clip_window;
};

#define MSWINDOWS_SUBWINDOW_DATA(i) \
  ((struct mswindows_subwindow_data *) (i)->data)
#define IMAGE_INSTANCE_MSWINDOWS_CLIPWINDOW(i) \
     (MSWINDOWS_SUBWINDOW_DATA (i)->clip_window)

#define XIMAGE_INSTANCE_MSWINDOWS_SUBWINDOW_DATA(i) \
  MSWINDOWS_SUBWINDOW_DATA (XIMAGE_INSTANCE (i))
#define XIMAGE_INSTANCE_MSWINDOWS_CLIPWINDOW(i) \
  IMAGE_INSTANCE_MSWINDOWS_CLIPWINDOW (XIMAGE_INSTANCE (i))

#define DOMAIN_MSWINDOWS_HANDLE(domain) \
  ((IMAGE_INSTANCEP (domain) && \
  XIMAGE_INSTANCE_MSWINDOWS_SUBWINDOW_DATA (domain)) ? \
   XWIDGET_INSTANCE_MSWINDOWS_HANDLE (domain) : \
   FRAME_MSWINDOWS_HANDLE (DOMAIN_XFRAME (domain)))

#endif /* HAVE_MS_WINDOWS */

#endif /* INCLUDED_glyphs_msw_h_ */