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[xemacs-hg @ 2002-05-23 11:46:08 by ben] fix for raymond toy's crash, alloca crashes, some recover-session improvements files.el: Recover-session improvements: Only show session files where some files can actually be recovered, and show in chronological order. subr.el, menubar-items.el: As promised to rms, the functionality in truncate-string-with-continuation-dots has been merged into truncate-string-to-width. Change callers in menubar-items.el. select.el: Document some of these funs better. Fix problem where we were doing own-clipboard twice. Makefile.in.in: Add alloca.o. Ensure that alloca.s doesn't compile into alloca.o, but allocax.o (not that it's currently used or anything.) EmacsFrame.c, abbrev.c, alloc.c, alloca.c, callint.c, callproc.c, config.h.in, device-msw.c, device-x.c, dired.c, doc.c, editfns.c, emacs.c, emodules.c, eval.c, event-Xt.c, event-msw.c, event-stream.c, file-coding.c, fileio.c, filelock.c, fns.c, glyphs-gtk.c, glyphs-msw.c, glyphs-x.c, gui-x.c, input-method-xlib.c, intl-win32.c, lisp.h, lread.c, menubar-gtk.c, menubar-msw.c, menubar.c, mule-wnnfns.c, nt.c, objects-msw.c, process-nt.c, realpath.c, redisplay-gtk.c, redisplay-output.c, redisplay-x.c, redisplay.c, search.c, select-msw.c, sysdep.c, syswindows.h, text.c, text.h, ui-byhand.c: Fix Raymond Toy's crash. Repeat to self: 2^21 - 1 is NOT the same as (2 << 21) - 1. Fix crashes due to excessive alloca(). replace alloca() with ALLOCA(), which calls the C alloca() [which uses xmalloc()] when the size is too big. Insert in various places calls to try to flush the C alloca() stored info if there is any. Add MALLOC_OR_ALLOCA(), for places that expect to be alloca()ing large blocks. This xmalloc()s when too large and records an unwind-protect to free -- relying on the caller to unbind_to() elsewhere in the function. Use it in concat(). Use MALLOC instead of ALLOCA in select-msw.c. xemacs.mak: Add alloca.o.
author ben
date Thu, 23 May 2002 11:46:46 +0000
parents e38acbeb1cae
children 6fa9919a9a0b
line wrap: on
line source

/* Define scrollbar instance.
   Copyright (C) 1994, 1995 Board of Trustees, University of Illinois.

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_scrollbar_h_
#define INCLUDED_scrollbar_h_

#ifdef HAVE_SCROLLBARS

struct scrollbar_instance
{
  struct lcrecord_header header;

  /* Used by the frame caches. */
  struct scrollbar_instance *next;

  /* Pointer back to the mirror structure attached to. */
  struct window_mirror *mirror;

  /* This flag indicates if the scrollbar is currently in use. */
  char scrollbar_is_active;

  /* This flag indicates if a data parameter has changed. */
  char scrollbar_instance_changed;

  /* A structure of auxiliary data specific to the device type.
     struct x_scrollbar_data is used for X window frames; defined in
     scrollbar-x.h */
  void *scrollbar_data;
};

DECLARE_LRECORD (scrollbar_instance, struct scrollbar_instance);
#define XSCROLLBAR_INSTANCE(x) XRECORD (x, scrollbar_instance, struct scrollbar_instance)
#define wrap_scrollbar_instance(p) wrap_record (p, scrollbar_instance)
#define SCROLLBAR_INSTANCEP(x) RECORDP (x, scrollbar_instance)
#define CHECK_SCROLLBAR_INSTANCE(x) CHECK_RECORD (x, scrollbar_instance)
#define CONCHECK_SCROLLBAR_INSTANCE(x) CONCHECK_RECORD (x, scrollbar_instance)

#define SCROLLBAR_INSTANCE_FRAME(inst) (inst->mirror->frame)

void init_frame_scrollbars (struct frame *f);
void init_device_scrollbars (struct device *d);
void init_global_scrollbars (struct device *d);
void free_frame_scrollbars (struct frame *f);
void release_window_mirror_scrollbars (struct window_mirror *mir);
void update_window_scrollbars (struct window *w,
			       struct window_mirror *mirror,
			       int active, int horiz_only);
#ifdef MEMORY_USAGE_STATS
int compute_scrollbar_instance_usage (struct device *d,
				      struct scrollbar_instance *inst,
				      struct overhead_stats *ovstats);
#endif

extern Lisp_Object Vscrollbar_width, Vscrollbar_height;

extern Lisp_Object Qscrollbar_line_up;
extern Lisp_Object Qscrollbar_line_down;
extern Lisp_Object Qscrollbar_page_up;
extern Lisp_Object Qscrollbar_page_down;
extern Lisp_Object Qscrollbar_to_top;
extern Lisp_Object Qscrollbar_to_bottom;
extern Lisp_Object Qscrollbar_vertical_drag;

extern Lisp_Object Qscrollbar_char_left;
extern Lisp_Object Qscrollbar_char_right;
extern Lisp_Object Qscrollbar_page_left;
extern Lisp_Object Qscrollbar_page_right;
extern Lisp_Object Qscrollbar_to_left;
extern Lisp_Object Qscrollbar_to_right;
extern Lisp_Object Qscrollbar_horizontal_drag;

#endif /* HAVE_SCROLLBARS */

#endif /* INCLUDED_scrollbar_h_ */