comparison src/scrollbar.c @ 1318:b531bf8658e9

[xemacs-hg @ 2003-02-21 06:56:46 by ben] redisplay fixes et al. PROBLEMS: Add comment about Cygwin, unexec and sysmalloc. Move some non-general stuff out of general. Make a section for x86. configure.in: Add check for broken alloca in funcalls. mule/mule-cmds.el: Alias file-name to native not vice-versa. Do set EOL of native but not of process output to fix various problems and be consistent with code-init.el. code-cmds.el: Return a name not a coding system. code-init.el: Reindent. Remove `file-name' since it should always be the same as native. unicode.el: Rename to load-unicode-mapping-table as suggested by the anonymous (but rather Turnbullian) comment in unicode.c. xemacs.dsp: Add /k to default build. alloc.c: Make gc_currently_forbidden static. config.h.in, lisp.h: Move some stuff to lisp.h. console-gtk.h, console-impl.h, console-msw.h, console-x.h, event-Xt.c, event-msw.c, redisplay-gtk.c, redisplay-msw.c, redisplay-output.c, redisplay-x.c, gtk-xemacs.c: Remove duplicated code to redraw exposed area. Add deadbox method needed by the generalized redraw code. Defer redrawing if already in redisplay. frame-msw.c, event-stream.c, frame.c: Add comments about calling Lisp. debug.c, general-slots.h: Move generalish symbols to general-slots.h. doprnt.c: reindent. lisp.h, dynarr.c: Add debug code for locking a dynarr to catch invalid mods. Use in redisplay.c. eval.c: file-coding.c: Define file-name as alias for native not vice-versa. frame-gtk.c, frame-x.c: Move Qwindow_id to general-slots. dialog-msw.c, glyphs-gtk.c, glyphs-msw.c, glyphs-widget.c, glyphs-x.c, gui.c, gui.h, menubar-msw.c, menubar.c: Ensure that various glyph functions that eval within redisplay protect the evals. Same for calls to internal_equal(). Modify various functions, e.g. gui_item_*(), to protect evals within redisplay, taking an in_redisplay parameter if it's possible for them to be called both inside and outside of redisplay. gutter.c: Defer specifier-changed updating till after redisplay, if necessary, since we need to enter redisplay to do it. gutter.c: Do nothing if in redisplay. lisp.h: Add version of alloca() for use in function calls. lisp.h: Add XCAD[D+]R up to 6 D's, and aliases X1ST, X2ND, etc. frame.c, frame.h, redisplay.c, redisplay.h, signal.c, toolbar.c: Redo critical-section code and move from frame.c to redisplay.c. Require that every place inside of redisplay catch errors itself, not at the edge of the critical section (thereby bypassing the rest of redisplay and leaving things in an inconsistent state). Introduce separate means of holding frame-size changes without entering a complete critical section. Introduce "post-redisplay" methods for deferring things till after redisplay. Abort if we enter redisplay reentrantly. Disable all quit checking in redisplay since it's too dangerous. Ensure that all calls to QUIT trigger an abort if unprotected. redisplay.c, scrollbar-gtk.c, scrollbar-x.c, scrollbar.c: Create enter/exit_redisplay_critical_section_maybe() for code that needs to ensure it's in a critical section but doesn't interfere with an existing critical section. sysdep.c: Use _wexecve() when under Windows NT for Unicode correctness. text.c, text.h: Add new_dfc() functions, which return an alloca()ed value rather than requiring an lvalue. (Not really used yet; used in another workspace, to come.) Add some macros for SIZED_EXTERNAL. Update the encoding aliases after involved scrutinization of the X manual. unicode.c: Answer the anonymous but suspiciously Turnbullian questions. Rename parse-unicode-translation-table to load-unicode-mapping-table, as suggested.
author ben
date Fri, 21 Feb 2003 06:57:21 +0000
parents 064ef1d07d63
children a19b0eb5dfc1
comparison
equal deleted inserted replaced
1317:d9d08dc5e617 1318:b531bf8658e9
1 /* Generic scrollbar implementation. 1 /* Generic scrollbar implementation.
2 Copyright (C) 1994, 1995 Board of Trustees, University of Illinois. 2 Copyright (C) 1994, 1995 Board of Trustees, University of Illinois.
3 Copyright (C) 1995 Free Software Foundation, Inc. 3 Copyright (C) 1995 Free Software Foundation, Inc.
4 Copyright (C) 1995 Sun Microsystems, Inc. 4 Copyright (C) 1995 Sun Microsystems, Inc.
5 Copyright (C) 1995 Darrell Kindred <dkindred+@cmu.edu>. 5 Copyright (C) 1995 Darrell Kindred <dkindred+@cmu.edu>.
6 Copyright (C) 2003 Ben Wing.
6 7
7 This file is part of XEmacs. 8 This file is part of XEmacs.
8 9
9 XEmacs is free software; you can redistribute it and/or modify it 10 XEmacs is free software; you can redistribute it and/or modify it
10 under the terms of the GNU General Public License as published by the 11 under the terms of the GNU General Public License as published by the
283 update_window_scrollbars (struct window *w, struct window_mirror *mirror, 284 update_window_scrollbars (struct window *w, struct window_mirror *mirror,
284 int active, int horiz_only) 285 int active, int horiz_only)
285 { 286 {
286 struct frame *f = XFRAME (w->frame); 287 struct frame *f = XFRAME (w->frame);
287 struct device *d = XDEVICE (f->device); 288 struct device *d = XDEVICE (f->device);
289 int depth;
288 290
289 if (!HAS_DEVMETH_P (d, create_scrollbar_instance)) 291 if (!HAS_DEVMETH_P (d, create_scrollbar_instance))
290 return; 292 return;
291 293
292 in_display++; 294 depth = enter_redisplay_critical_section_maybe ();
293 295
294 /* It is possible for this to get called from the mirror update 296 /* It is possible for this to get called from the mirror update
295 routines. In that case the structure is in an indeterminate 297 routines. In that case the structure is in an indeterminate
296 state but we know exactly what struct we are working with. So we 298 state but we know exactly what struct we are working with. So we
297 pass it in in that case. We also take advantage of it at some 299 pass it in in that case. We also take advantage of it at some
345 release_scrollbar_instance (f, 0, instance); 347 release_scrollbar_instance (f, 0, instance);
346 mirror->scrollbar_horizontal_instance = NULL; 348 mirror->scrollbar_horizontal_instance = NULL;
347 } 349 }
348 } 350 }
349 351
350 in_display--; 352 exit_redisplay_critical_section_maybe (depth);
351 } 353 }
352 354
353 void 355 void
354 release_window_mirror_scrollbars (struct window_mirror *mir) 356 release_window_mirror_scrollbars (struct window_mirror *mir)
355 { 357 {