annotate src/scrollbar-msw.c @ 814:a634e3b7acc8

[xemacs-hg @ 2002-04-14 12:41:59 by ben] latest changes TODO.ben-mule-21-5: Update. make-docfile.c: Add basic support for handling ISO 2022 doc strings -- we parse the basic charset designation sequences so we know whether we're in ASCII and have to pay attention to end quotes and such. Reformat code according to coding standards. abbrev.el: Add `global-abbrev-mode', which turns on or off abbrev-mode in all buffers. Added `defining-abbrev-turns-on-abbrev-mode' -- if non-nil, defining an abbrev through an interactive function will automatically turn on abbrev-mode, either globally or locally depending on the command. This is the "what you'd expect" behavior. indent.el: general function for indenting a balanced expression in a mode-correct way. Works similar to indent-region in that a mode can specify a specific command to do the whole operation; if not, figure out the region using forward-sexp and indent each line using indent-according-to-mode. keydefs.el: Removed. Modify M-C-backslash to do indent-region-or-balanced-expression. Make S-Tab just insert a TAB char, like it's meant to do. make-docfile.el: Now that we're using the call-process-in-lisp, we need to load an extra file win32-native.el because we're running a bare temacs. menubar-items.el: Totally redo the Cmds menu so that most used commands appear directly on the menu and less used commands appear in submenus. The old way may have been very pretty, but rather impractical. process.el: Under Windows, don't ever use old-call-process-internal, even in batch mode. We can do processes in batch mode. subr.el: Someone recoded truncate-string-to-width, saying "the FSF version is too complicated and does lots of hard-to-understand stuff" but the resulting recoded version was *totally* wrong! it misunderstood the basic point of this function, which is work in *columns* not chars. i dumped ours and copied the version from FSF 21.1. Also added truncate-string-with-continuation-dots, since this idiom is used often. config.inc.samp, xemacs.mak: Separate out debug and optimize flags. Remove all vestiges of USE_MINIMAL_TAGBITS, USE_INDEXED_LRECORD_IMPLEMENTATION, and GUNG_HO, since those ifdefs have long been removed. Make error-checking support actually work. Some rearrangement of config.inc.samp to make it more logical. Remove callproc.c and ntproc.c from xemacs.mak, no longer used. Make pdump the default. lisp.h: Add support for strong type-checking of Bytecount, Bytebpos, Charcount, Charbpos, and others, by making them classes, overloading the operators to provide integer-like operation and carefully controlling what operations are allowed. Not currently enabled in C++ builds because there are still a number of compile errors, and it won't really work till we merge in my "8-bit-Mule" workspace, in which I make use of the new types Charxpos, Bytexpos, Memxpos, representing a "position" either in a buffer or a string. (This is especially important in the extent code.) abbrev.c, alloc.c, eval.c, buffer.c, buffer.h, editfns.c, fns.c, text.h: Warning fixes, some of them related to new C++ strict type checking of Bytecount, Charbpos, etc. dired.c: Caught an actual error due to strong type checking -- char len being passed when should be byte len. alloc.c, backtrace.h, bytecode.c, bytecode.h, eval.c, sysdep.c: Further optimize Ffuncall: -- process arg list at compiled-function creation time, converting into an array for extra-quick access at funcall time. -- rewrite funcall_compiled_function to use it, and inline this function. -- change the order of check for magic stuff in SPECBIND_FAST_UNSAFE to be faster. -- move the check for need to garbage collect into the allocation code, so only a single flag needs to be checked in funcall. buffer.c, symbols.c: add debug funs to check on mule optimization info in buffers and strings. eval.c, emacs.c, text.c, regex.c, scrollbar-msw.c, search.c: Fix evil crashes due to eistrings not properly reinitialized under pdump. Redo a bit some of the init routines; convert some complex_vars_of() into simple vars_of(), because they didn't need complex processing. callproc.c, emacs.c, event-stream.c, nt.c, process.c, process.h, sysdep.c, sysdep.h, syssignal.h, syswindows.h, ntproc.c: Delete. Hallelujah, praise the Lord, there is no god but Allah!!! fix so that processes can be invoked in bare temacs -- thereby eliminating any need for callproc.c. (currently only eliminated under NT.) remove all crufty and unnecessary old process code in ntproc.c and elsewhere. move non-callproc-specific stuff (mostly environment) into process.c, so callproc.c can be left out under NT. console-tty.c, doc.c, file-coding.c, file-coding.h, lstream.c, lstream.h: fix doc string handling so it works with Japanese, etc docs. change handling of "character mode" so callers don't have to manually set it (quite error-prone). event-msw.c: spacing fixes. lread.c: eliminate unused crufty vintage-19 "FSF defun hack" code. lrecord.h: improve pdump description docs. buffer.c, ntheap.c, unexnt.c, win32.c, emacs.c: Mule-ize some unexec and startup code. It was pseudo-Mule-ized before by simply always calling the ...A versions of functions, but that won't cut it -- eventually we want to be able to run properly even if XEmacs has been installed in a Japanese directory. (The current problem is the timing of the loading of the Unicode tables; this will eventually be fixed.) Go through and fix various other places where the code was not Mule-clean. Provide a function mswindows_get_module_file_name() to get our own name without resort to PATH_MAX and such. Add a big comment in main() about the problem with Unicode table load timing that I just alluded to. emacs.c: When error-checking is enabled (interpreted as "user is developing XEmacs"), don't ask user to "pause to read messages" when a fatal error has occurred, because it will wedge if we are in an inner modal loop (typically when a menu is popped up) and make us unable to get a useful stack trace in the debugger. text.c: Correct update_entirely_ascii_p_flag to actually work. lisp.h, symsinit.h: declarations for above changes.
author ben
date Sun, 14 Apr 2002 12:43:31 +0000
parents a5954632b187
children 6504113e7c2d
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1 /* scrollbar implementation -- mswindows interface.
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2 Copyright (C) 1994, 1995 Board of Trustees, University of Illinois.
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3 Copyright (C) 1994 Amdahl Corporation.
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4 Copyright (C) 1995 Sun Microsystems, Inc.
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5 Copyright (C) 1995 Darrell Kindred <dkindred+@cmu.edu>.
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6 Copyright (C) 2001, 2002 Ben Wing.
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7
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8 This file is part of XEmacs.
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9
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10 XEmacs is free software; you can redistribute it and/or modify it
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11 under the terms of the GNU General Public License as published by the
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12 Free Software Foundation; either version 2, or (at your option) any
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13 later version.
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14
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15 XEmacs is distributed in the hope that it will be useful, but WITHOUT
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16 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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17 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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18 for more details.
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19
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20 You should have received a copy of the GNU General Public License
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21 along with XEmacs; see the file COPYING. If not, write to
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22 the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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23 Boston, MA 02111-1307, USA. */
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24
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25 /* Synched up with: Not in FSF. */
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26
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27 /* This file essentially Mule-ized (except perhaps some Unicode splitting).
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28 5-2000. */
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29
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30 #include <config.h>
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31 #include "lisp.h"
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32
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33 #include "device.h"
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34 #include "elhash.h"
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35 #include "events.h"
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36 #include "frame.h"
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37 #include "opaque.h"
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38 #include "scrollbar.h"
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39 #include "specifier.h"
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40 #include "window.h"
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41
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42 #include "console-msw.h"
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43 #include "scrollbar-msw.h"
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44
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45 /* We use a similar sort of vertical scrollbar drag hack for mswindows
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46 * scrollbars as is used for Motif or Lucid scrollbars under X.
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47 * We do character-based instead of line-based scrolling, which can mean that
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48 * without the hack it is impossible to drag to the end of a buffer. */
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49 #define VERTICAL_SCROLLBAR_DRAG_HACK
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50
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51 static int vertical_drag_in_progress = 0;
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52 extern Lisp_Object mswindows_find_frame (HWND hwnd);
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53
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54 /* As long as the HWND is around, the scrollbar instance must be GC-protected.
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55 We have gotten crashes, apparently from trying to access a dead, freed
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56 frame inside of a window mirror pointed to by the scrollbar structure. */
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57 static Lisp_Object Vmswindows_scrollbar_instance_table;
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58
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59 static void
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60 mswindows_create_scrollbar_instance (struct frame *f, int vertical,
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61 struct scrollbar_instance *sb)
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62 {
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63 int orientation;
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64 Lisp_Object ptr;
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65
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66 sb->scrollbar_data = xnew_and_zero (struct mswindows_scrollbar_data);
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67
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68 if (vertical)
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69 orientation = SBS_VERT;
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70 else
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71 orientation = SBS_HORZ;
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72
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73 SCROLLBAR_MSW_HANDLE (sb) =
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74 qxeCreateWindowEx (0, XETEXT ("SCROLLBAR"), 0, orientation|WS_CHILD,
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75 CW_USEDEFAULT, CW_USEDEFAULT,
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76 CW_USEDEFAULT, CW_USEDEFAULT,
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77 FRAME_MSWINDOWS_HANDLE (f),
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78 NULL, NULL, NULL);
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79 SCROLLBAR_MSW_INFO (sb).cbSize = sizeof (SCROLLINFO);
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80 SCROLLBAR_MSW_INFO (sb).fMask = SIF_ALL;
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81 GetScrollInfo (SCROLLBAR_MSW_HANDLE (sb), SB_CTL,
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82 &SCROLLBAR_MSW_INFO (sb));
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83 ptr = make_opaque_ptr (SCROLLBAR_MSW_HANDLE (sb));
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84 Fputhash (ptr, wrap_scrollbar_instance (sb),
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85 Vmswindows_scrollbar_instance_table);
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86 qxeSetWindowLong (SCROLLBAR_MSW_HANDLE (sb), GWL_USERDATA,
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87 (LONG) LISP_TO_VOID (ptr));
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88 }
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89
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90 static void
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91 mswindows_free_scrollbar_instance (struct scrollbar_instance *sb)
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92 {
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93 void *opaque =
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94 (void *) qxeGetWindowLong (SCROLLBAR_MSW_HANDLE (sb), GWL_USERDATA);
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95 Lisp_Object ptr;
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96
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97 VOID_TO_LISP (ptr, opaque);
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98 assert (OPAQUE_PTRP (ptr));
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99 ptr = Fremhash (ptr, Vmswindows_scrollbar_instance_table);
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100 assert (!NILP (ptr));
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101 DestroyWindow (SCROLLBAR_MSW_HANDLE (sb));
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102 if (sb->scrollbar_data)
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103 xfree (sb->scrollbar_data);
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104 }
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105
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106 static void
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107 unshow_that_mofo (void *handle)
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108 {
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109 ShowScrollBar ((HWND) handle, SB_CTL, 0);
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110 }
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111
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112 static void
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113 mswindows_release_scrollbar_instance (struct scrollbar_instance *sb)
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114 {
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115 if (gc_in_progress)
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116 /* #### way bogus! need to remove the offending call.
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117 see mark_redisplay(). */
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118 register_post_gc_action (unshow_that_mofo,
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119 (void *) SCROLLBAR_MSW_HANDLE (sb));
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120 else
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121 ShowScrollBar (SCROLLBAR_MSW_HANDLE (sb), SB_CTL, 0);
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122 SCROLLBAR_MSW_SIZE (sb) = 0;
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123 }
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124
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125 #define UPDATE_POS_FIELD(field) \
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126 if (new_##field >= 0 && SCROLLBAR_MSW_DATA (sb)->field != new_##field) { \
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127 SCROLLBAR_MSW_DATA (sb)->field = new_##field; \
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
128 pos_changed = 1; \
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
129 }
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
130
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
131 static void
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
132 mswindows_update_scrollbar_instance_values (struct window *w,
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
133 struct scrollbar_instance *sb,
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
134 int new_line_increment,
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
135 int new_page_increment,
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
136 int new_minimum, int new_maximum,
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
137 int new_slider_size,
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
138 int new_slider_position,
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
139 int new_scrollbar_width,
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
140 int new_scrollbar_height,
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
141 int new_scrollbar_x,
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
142 int new_scrollbar_y)
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
143 {
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
144 int pos_changed = 0;
771
943eaba38521 [xemacs-hg @ 2002-03-13 08:51:24 by ben]
ben
parents: 707
diff changeset
145 int vert = qxeGetWindowLong (SCROLLBAR_MSW_HANDLE (sb), GWL_STYLE) & SBS_VERT;
428
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
146
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
147 #if 0
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
148 stderr_out ("[%d, %d], page = %d, pos = %d, inhibit = %d\n", new_minimum, new_maximum,
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
149 new_slider_size, new_slider_position,inhibit_slider_size_change);
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
150 #endif
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
151
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
152 /* These might be optimized, but since at least one will change at each
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
153 call, it's probably not worth it. */
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
154 SCROLLBAR_MSW_INFO (sb).nMin = new_minimum;
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
155 SCROLLBAR_MSW_INFO (sb).nMax = new_maximum;
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
156 SCROLLBAR_MSW_INFO (sb).nPage = new_slider_size + 1; /* +1 for DISABLENOSCROLL */
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
157 SCROLLBAR_MSW_INFO (sb).nPos = new_slider_position;
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
158 #ifndef VERTICAL_SCROLLBAR_DRAG_HACK
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
159 SCROLLBAR_MSW_INFO (sb).fMask = ((vert && vertical_drag_in_progress)
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
160 ? SIF_RANGE | SIF_POS
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
161 : SIF_ALL | SIF_DISABLENOSCROLL);
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
162 #else
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
163 SCROLLBAR_MSW_INFO (sb).fMask = SIF_ALL | SIF_DISABLENOSCROLL;
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
164
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
165 /* Ignore XEmacs' requests to update the thumb position and size; they don't
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
166 * bear any relation to reality because we're reporting made-up positions */
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
167 if (!(vert && vertical_drag_in_progress))
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
168 #endif
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
169 SetScrollInfo (SCROLLBAR_MSW_HANDLE (sb), SB_CTL, &SCROLLBAR_MSW_INFO (sb),
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
170 TRUE);
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
171
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
172 UPDATE_POS_FIELD (scrollbar_x);
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
173 UPDATE_POS_FIELD (scrollbar_y);
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
174 UPDATE_POS_FIELD (scrollbar_width);
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
175 UPDATE_POS_FIELD (scrollbar_height);
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
176
442
abe6d1db359e Import from CVS: tag r21-2-36
cvs
parents: 428
diff changeset
177 if (pos_changed)
428
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
178 {
617
af57a77cbc92 [xemacs-hg @ 2001-06-18 07:09:50 by ben]
ben
parents: 611
diff changeset
179 MoveWindow (SCROLLBAR_MSW_HANDLE (sb),
af57a77cbc92 [xemacs-hg @ 2001-06-18 07:09:50 by ben]
ben
parents: 611
diff changeset
180 new_scrollbar_x, new_scrollbar_y,
af57a77cbc92 [xemacs-hg @ 2001-06-18 07:09:50 by ben]
ben
parents: 611
diff changeset
181 new_scrollbar_width, new_scrollbar_height,
af57a77cbc92 [xemacs-hg @ 2001-06-18 07:09:50 by ben]
ben
parents: 611
diff changeset
182 TRUE);
428
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
183 }
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
184 }
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
185
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
186 static void
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
187 mswindows_update_scrollbar_instance_status (struct window *w,
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
188 int active, int size,
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
189 struct scrollbar_instance *sb)
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
190 {
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
191 if (SCROLLBAR_MSW_SIZE (sb) != size)
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
192 {
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
193 SCROLLBAR_MSW_SIZE (sb) = size;
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
194 ShowScrollBar (SCROLLBAR_MSW_HANDLE (sb), SB_CTL,
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
195 SCROLLBAR_MSW_SIZE (sb));
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
196 SCROLLBAR_MSW_INFO(sb).fMask |= SIF_DISABLENOSCROLL;
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
197 SetScrollInfo(SCROLLBAR_MSW_HANDLE (sb), SB_CTL, &SCROLLBAR_MSW_INFO (sb), TRUE);
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
198 }
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
199 }
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
200
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
201 void
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
202 mswindows_handle_scrollbar_event (HWND hwnd, int code, int pos)
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
203 {
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
204 struct frame *f;
3ecd8885ac67 Import from CVS: tag r21-2-22
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parents:
diff changeset
205 Lisp_Object win, frame;
617
af57a77cbc92 [xemacs-hg @ 2001-06-18 07:09:50 by ben]
ben
parents: 611
diff changeset
206 struct scrollbar_instance *sb = 0;
af57a77cbc92 [xemacs-hg @ 2001-06-18 07:09:50 by ben]
ben
parents: 611
diff changeset
207 void *v;
428
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
208 SCROLLINFO scrollinfo;
771
943eaba38521 [xemacs-hg @ 2002-03-13 08:51:24 by ben]
ben
parents: 707
diff changeset
209 int vert = qxeGetWindowLong (hwnd, GWL_STYLE) & SBS_VERT;
428
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
210 int value;
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
211
771
943eaba38521 [xemacs-hg @ 2002-03-13 08:51:24 by ben]
ben
parents: 707
diff changeset
212 v = (void *) qxeGetWindowLong (hwnd, GWL_USERDATA);
617
af57a77cbc92 [xemacs-hg @ 2001-06-18 07:09:50 by ben]
ben
parents: 611
diff changeset
213 if (!v)
546
666d73d6ac56 [xemacs-hg @ 2001-05-20 01:17:07 by ben]
ben
parents: 487
diff changeset
214 {
617
af57a77cbc92 [xemacs-hg @ 2001-06-18 07:09:50 by ben]
ben
parents: 611
diff changeset
215 /* apparently this can happen, as it was definitely necessary
af57a77cbc92 [xemacs-hg @ 2001-06-18 07:09:50 by ben]
ben
parents: 611
diff changeset
216 to put the check in for sb below (VERTICAL_SCROLLBAR_DRAG_HACK) */
546
666d73d6ac56 [xemacs-hg @ 2001-05-20 01:17:07 by ben]
ben
parents: 487
diff changeset
217 frame = mswindows_find_frame (hwnd);
666d73d6ac56 [xemacs-hg @ 2001-05-20 01:17:07 by ben]
ben
parents: 487
diff changeset
218 f = XFRAME (frame);
666d73d6ac56 [xemacs-hg @ 2001-05-20 01:17:07 by ben]
ben
parents: 487
diff changeset
219 win = FRAME_SELECTED_WINDOW (f);
666d73d6ac56 [xemacs-hg @ 2001-05-20 01:17:07 by ben]
ben
parents: 487
diff changeset
220 }
666d73d6ac56 [xemacs-hg @ 2001-05-20 01:17:07 by ben]
ben
parents: 487
diff changeset
221 else
666d73d6ac56 [xemacs-hg @ 2001-05-20 01:17:07 by ben]
ben
parents: 487
diff changeset
222 {
617
af57a77cbc92 [xemacs-hg @ 2001-06-18 07:09:50 by ben]
ben
parents: 611
diff changeset
223 Lisp_Object ptr;
af57a77cbc92 [xemacs-hg @ 2001-06-18 07:09:50 by ben]
ben
parents: 611
diff changeset
224 VOID_TO_LISP (ptr, v);
af57a77cbc92 [xemacs-hg @ 2001-06-18 07:09:50 by ben]
ben
parents: 611
diff changeset
225 assert (OPAQUE_PTRP (ptr));
af57a77cbc92 [xemacs-hg @ 2001-06-18 07:09:50 by ben]
ben
parents: 611
diff changeset
226 ptr = Fgethash (ptr, Vmswindows_scrollbar_instance_table, Qnil);
af57a77cbc92 [xemacs-hg @ 2001-06-18 07:09:50 by ben]
ben
parents: 611
diff changeset
227 sb = XSCROLLBAR_INSTANCE (ptr);
664
6e99cc8c6ca5 [xemacs-hg @ 2001-09-18 05:04:26 by ben]
ben
parents: 617
diff changeset
228 /* #### we're still hitting an abort here with 0 as the second
6e99cc8c6ca5 [xemacs-hg @ 2001-09-18 05:04:26 by ben]
ben
parents: 617
diff changeset
229 parameter, although only occasionally. It seems that sometimes we
6e99cc8c6ca5 [xemacs-hg @ 2001-09-18 05:04:26 by ben]
ben
parents: 617
diff changeset
230 receive events for scrollbars that don't exist anymore. I assume
6e99cc8c6ca5 [xemacs-hg @ 2001-09-18 05:04:26 by ben]
ben
parents: 617
diff changeset
231 it must happen like this: The user does something that causes a
6e99cc8c6ca5 [xemacs-hg @ 2001-09-18 05:04:26 by ben]
ben
parents: 617
diff changeset
232 scrollbar to disappear (e.g. Alt-TAB, causing recomputation of
6e99cc8c6ca5 [xemacs-hg @ 2001-09-18 05:04:26 by ben]
ben
parents: 617
diff changeset
233 everything in the new frame) and then immediately uses the mouse
6e99cc8c6ca5 [xemacs-hg @ 2001-09-18 05:04:26 by ben]
ben
parents: 617
diff changeset
234 wheel, generating scrollbar events. Both events get posted before
6e99cc8c6ca5 [xemacs-hg @ 2001-09-18 05:04:26 by ben]
ben
parents: 617
diff changeset
235 we have a chance to process them, and in processing the first, the
6e99cc8c6ca5 [xemacs-hg @ 2001-09-18 05:04:26 by ben]
ben
parents: 617
diff changeset
236 scrollbar mentioned in the second disappears. */
6e99cc8c6ca5 [xemacs-hg @ 2001-09-18 05:04:26 by ben]
ben
parents: 617
diff changeset
237 win = real_window (sb->mirror, 1);
6e99cc8c6ca5 [xemacs-hg @ 2001-09-18 05:04:26 by ben]
ben
parents: 617
diff changeset
238 if (NILP (win))
6e99cc8c6ca5 [xemacs-hg @ 2001-09-18 05:04:26 by ben]
ben
parents: 617
diff changeset
239 return;
617
af57a77cbc92 [xemacs-hg @ 2001-06-18 07:09:50 by ben]
ben
parents: 611
diff changeset
240 frame = WINDOW_FRAME (XWINDOW (win));
546
666d73d6ac56 [xemacs-hg @ 2001-05-20 01:17:07 by ben]
ben
parents: 487
diff changeset
241 f = XFRAME (frame);
666d73d6ac56 [xemacs-hg @ 2001-05-20 01:17:07 by ben]
ben
parents: 487
diff changeset
242 }
428
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
243
673
685b588e92d8 [xemacs-hg @ 2001-10-30 05:13:26 by andyp]
andyp
parents: 665
diff changeset
244 /* SB_LINEDOWN == SB_CHARLEFT etc. This is the way they will
685b588e92d8 [xemacs-hg @ 2001-10-30 05:13:26 by andyp]
andyp
parents: 665
diff changeset
245 always be - any Windows is binary compatible backward with
685b588e92d8 [xemacs-hg @ 2001-10-30 05:13:26 by andyp]
andyp
parents: 665
diff changeset
246 old programs */
428
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
247
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
248 switch (code)
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
249 {
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
250 case SB_LINEDOWN:
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
251 mswindows_enqueue_misc_user_event
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
252 (frame, vert ? Qscrollbar_line_down : Qscrollbar_char_right, win);
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
253 break;
442
abe6d1db359e Import from CVS: tag r21-2-36
cvs
parents: 428
diff changeset
254
428
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
255 case SB_LINEUP:
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
256 mswindows_enqueue_misc_user_event
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
257 (frame, vert ? Qscrollbar_line_up : Qscrollbar_char_left, win);
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
258 break;
442
abe6d1db359e Import from CVS: tag r21-2-36
cvs
parents: 428
diff changeset
259
428
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
260 case SB_PAGEDOWN:
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
261 mswindows_enqueue_misc_user_event
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
262 (win, vert ? Qscrollbar_page_down : Qscrollbar_page_right,
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
263 vert ? Fcons (win, Qnil) : win);
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
264 break;
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
265
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
266 case SB_PAGEUP:
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
267 mswindows_enqueue_misc_user_event
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
268 (frame,
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
269 vert ? Qscrollbar_page_up : Qscrollbar_page_left,
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
270 vert ? Fcons (win, Qnil) : win);
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
271 break;
442
abe6d1db359e Import from CVS: tag r21-2-36
cvs
parents: 428
diff changeset
272
428
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
273 case SB_BOTTOM:
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
274 mswindows_enqueue_misc_user_event
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
275 (frame, vert ? Qscrollbar_to_bottom : Qscrollbar_to_right, win);
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
276 break;
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
277
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
278 case SB_TOP:
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
279 mswindows_enqueue_misc_user_event
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
280 (frame, vert ? Qscrollbar_to_top : Qscrollbar_to_left, win);
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
281 break;
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
282
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
283 case SB_THUMBTRACK:
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
284 case SB_THUMBPOSITION:
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
285 scrollinfo.cbSize = sizeof(SCROLLINFO);
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
286 scrollinfo.fMask = SIF_ALL;
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
287 GetScrollInfo (hwnd, SB_CTL, &scrollinfo);
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
288 vertical_drag_in_progress = vert;
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
289 #ifdef VERTICAL_SCROLLBAR_DRAG_HACK
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
290 if (vert && (scrollinfo.nTrackPos > scrollinfo.nPos))
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
291 /* new buffer position =
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
292 * buffer position at start of drag +
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
293 * ((text remaining in buffer at start of drag) *
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
294 * (amount that the thumb has been moved) /
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
295 * (space that remained past end of the thumb at start of drag)) */
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
296 value = (int)
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
297 (scrollinfo.nPos
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
298 + (((double)
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
299 (scrollinfo.nMax - scrollinfo.nPos)
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
300 * (scrollinfo.nTrackPos - scrollinfo.nPos))
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
301 / (scrollinfo.nMax - scrollinfo.nPage - scrollinfo.nPos)))
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
302 - 2; /* ensure that the last line doesn't disappear off screen */
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
303 else
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
304 #endif
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
305 value = scrollinfo.nTrackPos;
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
306 mswindows_enqueue_misc_user_event
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
307 (frame,
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
308 vert ? Qscrollbar_vertical_drag : Qscrollbar_horizontal_drag,
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
309 Fcons (win, make_int (value)));
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
310 break;
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
311
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
312 case SB_ENDSCROLL:
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
313 #ifdef VERTICAL_SCROLLBAR_DRAG_HACK
546
666d73d6ac56 [xemacs-hg @ 2001-05-20 01:17:07 by ben]
ben
parents: 487
diff changeset
314 if (vertical_drag_in_progress && sb)
428
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
315 /* User has just dropped the thumb - finally update it */
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
316 SetScrollInfo (SCROLLBAR_MSW_HANDLE (sb), SB_CTL,
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
317 &SCROLLBAR_MSW_INFO (sb), TRUE);
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
318 #endif
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
319 vertical_drag_in_progress = 0;
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
320 break;
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
321 }
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
322 }
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
323
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
324 static int
771
943eaba38521 [xemacs-hg @ 2002-03-13 08:51:24 by ben]
ben
parents: 707
diff changeset
325 can_scroll (struct scrollbar_instance *scrollbar)
428
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
326 {
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
327 return scrollbar != NULL
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
328 && IsWindowVisible (SCROLLBAR_MSW_HANDLE (scrollbar))
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
329 && IsWindowEnabled (SCROLLBAR_MSW_HANDLE (scrollbar));
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
330 }
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
331
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
332 int
464
5aa1854ad537 Import from CVS: tag r21-2-47
cvs
parents: 442
diff changeset
333 mswindows_handle_mousewheel_event (Lisp_Object frame, int keys, int delta,
5aa1854ad537 Import from CVS: tag r21-2-47
cvs
parents: 442
diff changeset
334 POINTS where)
428
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
335 {
442
abe6d1db359e Import from CVS: tag r21-2-36
cvs
parents: 428
diff changeset
336 int hasVertBar, hasHorzBar; /* Indicates presence of scroll bars */
428
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
337 unsigned wheelScrollLines = 0; /* Number of lines per wheel notch */
707
a307f9a2021d [xemacs-hg @ 2001-12-20 05:49:28 by andyp]
andyp
parents: 673
diff changeset
338 Lisp_Object win, corpore, sano;
464
5aa1854ad537 Import from CVS: tag r21-2-47
cvs
parents: 442
diff changeset
339 struct window_mirror *mirror;
707
a307f9a2021d [xemacs-hg @ 2001-12-20 05:49:28 by andyp]
andyp
parents: 673
diff changeset
340 int mene, _mene, tekel, upharsin;
a307f9a2021d [xemacs-hg @ 2001-12-20 05:49:28 by andyp]
andyp
parents: 673
diff changeset
341 Charbpos mens, sana;
a307f9a2021d [xemacs-hg @ 2001-12-20 05:49:28 by andyp]
andyp
parents: 673
diff changeset
342 Charcount in;
a307f9a2021d [xemacs-hg @ 2001-12-20 05:49:28 by andyp]
andyp
parents: 673
diff changeset
343 struct window *needle_in_haystack = 0;
464
5aa1854ad537 Import from CVS: tag r21-2-47
cvs
parents: 442
diff changeset
344 POINT donde_esta;
428
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
345
464
5aa1854ad537 Import from CVS: tag r21-2-47
cvs
parents: 442
diff changeset
346 donde_esta.x = where.x;
5aa1854ad537 Import from CVS: tag r21-2-47
cvs
parents: 442
diff changeset
347 donde_esta.y = where.y;
5aa1854ad537 Import from CVS: tag r21-2-47
cvs
parents: 442
diff changeset
348
5aa1854ad537 Import from CVS: tag r21-2-47
cvs
parents: 442
diff changeset
349 /* Find the window to scroll */
5aa1854ad537 Import from CVS: tag r21-2-47
cvs
parents: 442
diff changeset
350
707
a307f9a2021d [xemacs-hg @ 2001-12-20 05:49:28 by andyp]
andyp
parents: 673
diff changeset
351 /* The mouse event could actually occur outside of the emacs
a307f9a2021d [xemacs-hg @ 2001-12-20 05:49:28 by andyp]
andyp
parents: 673
diff changeset
352 frame. */
a307f9a2021d [xemacs-hg @ 2001-12-20 05:49:28 by andyp]
andyp
parents: 673
diff changeset
353 if (ScreenToClient (FRAME_MSWINDOWS_HANDLE (XFRAME (frame)),
a307f9a2021d [xemacs-hg @ 2001-12-20 05:49:28 by andyp]
andyp
parents: 673
diff changeset
354 &donde_esta) != 0)
771
943eaba38521 [xemacs-hg @ 2002-03-13 08:51:24 by ben]
ben
parents: 707
diff changeset
355 /* stderr_out ("donde_esta: %d %d\n", donde_esta.x, donde_esta.y); */
943eaba38521 [xemacs-hg @ 2002-03-13 08:51:24 by ben]
ben
parents: 707
diff changeset
356 pixel_to_glyph_translation (XFRAME (frame), donde_esta.x, donde_esta.y,
943eaba38521 [xemacs-hg @ 2002-03-13 08:51:24 by ben]
ben
parents: 707
diff changeset
357 &mene, &_mene, &tekel, &upharsin,
943eaba38521 [xemacs-hg @ 2002-03-13 08:51:24 by ben]
ben
parents: 707
diff changeset
358 &needle_in_haystack,
943eaba38521 [xemacs-hg @ 2002-03-13 08:51:24 by ben]
ben
parents: 707
diff changeset
359 &mens, &sana, &in, &corpore, &sano);
943eaba38521 [xemacs-hg @ 2002-03-13 08:51:24 by ben]
ben
parents: 707
diff changeset
360
943eaba38521 [xemacs-hg @ 2002-03-13 08:51:24 by ben]
ben
parents: 707
diff changeset
361 if (needle_in_haystack)
707
a307f9a2021d [xemacs-hg @ 2001-12-20 05:49:28 by andyp]
andyp
parents: 673
diff changeset
362 {
793
e38acbeb1cae [xemacs-hg @ 2002-03-29 04:46:17 by ben]
ben
parents: 771
diff changeset
363 win = wrap_window (needle_in_haystack);
771
943eaba38521 [xemacs-hg @ 2002-03-13 08:51:24 by ben]
ben
parents: 707
diff changeset
364 /* stderr_out ("found needle\n");
943eaba38521 [xemacs-hg @ 2002-03-13 08:51:24 by ben]
ben
parents: 707
diff changeset
365 debug_print (win); */
707
a307f9a2021d [xemacs-hg @ 2001-12-20 05:49:28 by andyp]
andyp
parents: 673
diff changeset
366 }
771
943eaba38521 [xemacs-hg @ 2002-03-13 08:51:24 by ben]
ben
parents: 707
diff changeset
367 else
707
a307f9a2021d [xemacs-hg @ 2001-12-20 05:49:28 by andyp]
andyp
parents: 673
diff changeset
368 {
a307f9a2021d [xemacs-hg @ 2001-12-20 05:49:28 by andyp]
andyp
parents: 673
diff changeset
369 win = FRAME_SELECTED_WINDOW (XFRAME (frame));
a307f9a2021d [xemacs-hg @ 2001-12-20 05:49:28 by andyp]
andyp
parents: 673
diff changeset
370 needle_in_haystack = XWINDOW (win);
a307f9a2021d [xemacs-hg @ 2001-12-20 05:49:28 by andyp]
andyp
parents: 673
diff changeset
371 }
464
5aa1854ad537 Import from CVS: tag r21-2-47
cvs
parents: 442
diff changeset
372
707
a307f9a2021d [xemacs-hg @ 2001-12-20 05:49:28 by andyp]
andyp
parents: 673
diff changeset
373 mirror = find_window_mirror (needle_in_haystack);
428
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
374
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
375 /* Check that there is something to scroll */
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
376 hasVertBar = can_scroll (mirror->scrollbar_vertical_instance);
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
377 hasHorzBar = can_scroll (mirror->scrollbar_horizontal_instance);
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
378 if (!hasVertBar && !hasHorzBar)
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
379 return FALSE;
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
380
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
381 /* No support for panning and zooming, so ignore */
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
382 if (keys & (MK_SHIFT | MK_CONTROL))
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
383 return FALSE;
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
384
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
385 /* Get the number of lines per wheel delta */
771
943eaba38521 [xemacs-hg @ 2002-03-13 08:51:24 by ben]
ben
parents: 707
diff changeset
386 qxeSystemParametersInfo (SPI_GETWHEELSCROLLLINES, 0, &wheelScrollLines, 0);
428
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
387
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
388 /* Calculate the amount to scroll */
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
389 if (wheelScrollLines == WHEEL_PAGESCROLL)
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
390 {
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
391 /* Scroll by a page */
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
392 Lisp_Object function;
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
393 if (hasVertBar)
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
394 function = delta > 0 ? Qscrollbar_page_up : Qscrollbar_page_down;
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
395 else
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
396 function = delta > 0 ? Qscrollbar_page_left : Qscrollbar_page_right;
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
397 mswindows_enqueue_misc_user_event (frame, function, Fcons (win, Qnil));
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
398 }
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
399 else /* Scroll by a number of lines */
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
400 {
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
401 /* Calc the number of lines to scroll */
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
402 int toScroll = MulDiv (delta, wheelScrollLines, WHEEL_DELTA);
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
403
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
404 /* Do the scroll */
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
405 Lisp_Object function;
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
406 if (hasVertBar)
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
407 function = delta > 0 ? Qscrollbar_line_up : Qscrollbar_line_down;
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
408 else
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
409 function = delta > 0 ? Qscrollbar_char_left : Qscrollbar_char_right;
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
410 if (toScroll < 0)
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
411 toScroll = -toScroll;
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
412 while (toScroll--)
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
413 mswindows_enqueue_misc_user_event (frame, function, win);
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
414 }
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
415
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
416 return TRUE;
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
417 }
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
418
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
419 #ifdef MEMORY_USAGE_STATS
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
420
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
421 static int
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
422 mswindows_compute_scrollbar_instance_usage (struct device *d,
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
423 struct scrollbar_instance *inst,
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
424 struct overhead_stats *ovstats)
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
425 {
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
426 int total = 0;
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
427
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
428 while (inst)
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
429 {
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
430 struct mswindows_scrollbar_data *data =
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
431 (struct mswindows_scrollbar_data *) inst->scrollbar_data;
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
432
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
433 total += malloced_storage_size (data, sizeof (*data), ovstats);
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
434 inst = inst->next;
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
435 }
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
436
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
437 return total;
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
438 }
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
439
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
440 #endif /* MEMORY_USAGE_STATS */
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
441
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
442 /************************************************************************/
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
443 /* Device-specific ghost specifiers initialization */
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
444 /************************************************************************/
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
445
617
af57a77cbc92 [xemacs-hg @ 2001-06-18 07:09:50 by ben]
ben
parents: 611
diff changeset
446 DEFUN ("mswindows-init-scrollbar-metrics", Fmswindows_init_scrollbar_metrics,
af57a77cbc92 [xemacs-hg @ 2001-06-18 07:09:50 by ben]
ben
parents: 611
diff changeset
447 1, 1, 0, /*
428
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
448 */
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
449 (locale))
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
450 {
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
451 if (DEVICEP (locale))
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
452 {
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
453 add_spec_to_ghost_specifier (Vscrollbar_width,
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
454 make_int (GetSystemMetrics (SM_CXVSCROLL)),
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
455 locale, Qmswindows, Qnil);
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
456 add_spec_to_ghost_specifier (Vscrollbar_height,
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
457 make_int (GetSystemMetrics (SM_CYHSCROLL)),
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
458 locale, Qmswindows, Qnil);
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
459 }
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
460 return Qnil;
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
461 }
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
462
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
diff changeset
463
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
parents:
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464 /************************************************************************/
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465 /* initialization */
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466 /************************************************************************/
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467
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468 void
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469 console_type_create_scrollbar_mswindows (void)
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470 {
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471 CONSOLE_HAS_METHOD (mswindows, create_scrollbar_instance);
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472 CONSOLE_HAS_METHOD (mswindows, free_scrollbar_instance);
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473 CONSOLE_HAS_METHOD (mswindows, release_scrollbar_instance);
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474 CONSOLE_HAS_METHOD (mswindows, update_scrollbar_instance_values);
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475 CONSOLE_HAS_METHOD (mswindows, update_scrollbar_instance_status);
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476 /* CONSOLE_HAS_METHOD (mswindows, scrollbar_width_changed_in_frame); */
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477 #ifdef MEMORY_USAGE_STATS
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478 CONSOLE_HAS_METHOD (mswindows, compute_scrollbar_instance_usage);
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479 #endif
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480 }
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481
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482 void
617
af57a77cbc92 [xemacs-hg @ 2001-06-18 07:09:50 by ben]
ben
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483 syms_of_scrollbar_mswindows (void)
428
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484 {
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485 DEFSUBR (Fmswindows_init_scrollbar_metrics);
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486 }
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487
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488 void
617
af57a77cbc92 [xemacs-hg @ 2001-06-18 07:09:50 by ben]
ben
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diff changeset
489 vars_of_scrollbar_mswindows (void)
428
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490 {
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491 Fprovide (intern ("mswindows-scrollbars"));
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492
617
af57a77cbc92 [xemacs-hg @ 2001-06-18 07:09:50 by ben]
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493 staticpro (&Vmswindows_scrollbar_instance_table);
af57a77cbc92 [xemacs-hg @ 2001-06-18 07:09:50 by ben]
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494 Vmswindows_scrollbar_instance_table =
af57a77cbc92 [xemacs-hg @ 2001-06-18 07:09:50 by ben]
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495 make_lisp_hash_table (100, HASH_TABLE_NON_WEAK, HASH_TABLE_EQ);
af57a77cbc92 [xemacs-hg @ 2001-06-18 07:09:50 by ben]
ben
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496 }