Mercurial > hg > xemacs-beta
annotate src/scrollbar-msw.c @ 5159:cb303ff63e76
merge
| author | Ben Wing <ben@xemacs.org> |
|---|---|
| date | Fri, 19 Mar 2010 17:02:11 -0500 |
| parents | 1fae11d56ad2 |
| children | 6c6d78781d59 |
| rev | line source |
|---|---|
| 428 | 1 /* scrollbar implementation -- mswindows interface. |
| 2 Copyright (C) 1994, 1995 Board of Trustees, University of Illinois. | |
| 3 Copyright (C) 1994 Amdahl Corporation. | |
| 4 Copyright (C) 1995 Sun Microsystems, Inc. | |
| 5 Copyright (C) 1995 Darrell Kindred <dkindred+@cmu.edu>. | |
| 771 | 6 Copyright (C) 2001, 2002 Ben Wing. |
| 428 | 7 |
| 8 This file is part of XEmacs. | |
| 9 | |
| 10 XEmacs is free software; you can redistribute it and/or modify it | |
| 11 under the terms of the GNU General Public License as published by the | |
| 12 Free Software Foundation; either version 2, or (at your option) any | |
| 13 later version. | |
| 14 | |
| 15 XEmacs is distributed in the hope that it will be useful, but WITHOUT | |
| 16 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
| 17 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
| 18 for more details. | |
| 19 | |
| 20 You should have received a copy of the GNU General Public License | |
| 21 along with XEmacs; see the file COPYING. If not, write to | |
| 22 the Free Software Foundation, Inc., 59 Temple Place - Suite 330, | |
| 23 Boston, MA 02111-1307, USA. */ | |
| 24 | |
| 25 /* Synched up with: Not in FSF. */ | |
| 26 | |
| 771 | 27 /* This file essentially Mule-ized (except perhaps some Unicode splitting). |
| 28 5-2000. */ | |
| 29 | |
| 428 | 30 #include <config.h> |
| 31 #include "lisp.h" | |
| 32 | |
| 800 | 33 #include "device.h" |
| 617 | 34 #include "elhash.h" |
| 428 | 35 #include "events.h" |
| 872 | 36 #include "frame-impl.h" |
| 617 | 37 #include "opaque.h" |
| 428 | 38 #include "scrollbar.h" |
| 39 #include "specifier.h" | |
| 872 | 40 #include "window-impl.h" |
| 428 | 41 |
| 872 | 42 #include "console-msw-impl.h" |
| 800 | 43 #include "scrollbar-msw.h" |
| 44 | |
| 428 | 45 /* We use a similar sort of vertical scrollbar drag hack for mswindows |
| 46 * scrollbars as is used for Motif or Lucid scrollbars under X. | |
| 47 * We do character-based instead of line-based scrolling, which can mean that | |
| 48 * without the hack it is impossible to drag to the end of a buffer. */ | |
| 49 #define VERTICAL_SCROLLBAR_DRAG_HACK | |
| 50 | |
| 51 static int vertical_drag_in_progress = 0; | |
| 673 | 52 extern Lisp_Object mswindows_find_frame (HWND hwnd); |
| 428 | 53 |
| 617 | 54 /* As long as the HWND is around, the scrollbar instance must be GC-protected. |
| 55 We have gotten crashes, apparently from trying to access a dead, freed | |
| 56 frame inside of a window mirror pointed to by the scrollbar structure. */ | |
| 57 static Lisp_Object Vmswindows_scrollbar_instance_table; | |
| 58 | |
| 428 | 59 static void |
| 60 mswindows_create_scrollbar_instance (struct frame *f, int vertical, | |
| 61 struct scrollbar_instance *sb) | |
| 62 { | |
| 63 int orientation; | |
| 617 | 64 Lisp_Object ptr; |
| 442 | 65 |
| 428 | 66 sb->scrollbar_data = xnew_and_zero (struct mswindows_scrollbar_data); |
| 442 | 67 |
| 428 | 68 if (vertical) |
| 69 orientation = SBS_VERT; | |
| 70 else | |
| 71 orientation = SBS_HORZ; | |
| 442 | 72 |
| 428 | 73 SCROLLBAR_MSW_HANDLE (sb) = |
| 771 | 74 qxeCreateWindowEx (0, XETEXT ("SCROLLBAR"), 0, orientation|WS_CHILD, |
| 75 CW_USEDEFAULT, CW_USEDEFAULT, | |
| 76 CW_USEDEFAULT, CW_USEDEFAULT, | |
| 77 FRAME_MSWINDOWS_HANDLE (f), | |
| 78 NULL, NULL, NULL); | |
| 546 | 79 SCROLLBAR_MSW_INFO (sb).cbSize = sizeof (SCROLLINFO); |
| 428 | 80 SCROLLBAR_MSW_INFO (sb).fMask = SIF_ALL; |
| 617 | 81 GetScrollInfo (SCROLLBAR_MSW_HANDLE (sb), SB_CTL, |
| 82 &SCROLLBAR_MSW_INFO (sb)); | |
| 83 ptr = make_opaque_ptr (SCROLLBAR_MSW_HANDLE (sb)); | |
| 84 Fputhash (ptr, wrap_scrollbar_instance (sb), | |
| 85 Vmswindows_scrollbar_instance_table); | |
| 771 | 86 qxeSetWindowLong (SCROLLBAR_MSW_HANDLE (sb), GWL_USERDATA, |
| 5013 | 87 (LONG) STORE_LISP_IN_VOID (ptr)); |
| 428 | 88 } |
| 89 | |
| 90 static void | |
| 91 mswindows_free_scrollbar_instance (struct scrollbar_instance *sb) | |
| 92 { | |
| 3482 | 93 if (sb->scrollbar_data) |
| 94 { | |
| 95 void *opaque = | |
| 96 (void *) qxeGetWindowLong (SCROLLBAR_MSW_HANDLE (sb), GWL_USERDATA); | |
| 97 Lisp_Object ptr; | |
| 617 | 98 |
| 5013 | 99 ptr = GET_LISP_FROM_VOID (opaque); |
| 3482 | 100 assert (OPAQUE_PTRP (ptr)); |
| 101 ptr = Fremhash (ptr, Vmswindows_scrollbar_instance_table); | |
| 102 assert (!NILP (ptr)); | |
| 103 DestroyWindow (SCROLLBAR_MSW_HANDLE (sb)); | |
|
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|
104 xfree (sb->scrollbar_data); |
| 3482 | 105 } |
| 428 | 106 } |
| 107 | |
| 108 static void | |
| 611 | 109 unshow_that_mofo (void *handle) |
| 110 { | |
| 111 ShowScrollBar ((HWND) handle, SB_CTL, 0); | |
| 112 } | |
| 113 | |
| 114 static void | |
| 428 | 115 mswindows_release_scrollbar_instance (struct scrollbar_instance *sb) |
| 116 { | |
| 611 | 117 if (gc_in_progress) |
| 118 /* #### way bogus! need to remove the offending call. | |
| 119 see mark_redisplay(). */ | |
| 120 register_post_gc_action (unshow_that_mofo, | |
| 121 (void *) SCROLLBAR_MSW_HANDLE (sb)); | |
| 122 else | |
| 123 ShowScrollBar (SCROLLBAR_MSW_HANDLE (sb), SB_CTL, 0); | |
| 428 | 124 SCROLLBAR_MSW_SIZE (sb) = 0; |
| 125 } | |
| 126 | |
| 127 #define UPDATE_POS_FIELD(field) \ | |
| 128 if (new_##field >= 0 && SCROLLBAR_MSW_DATA (sb)->field != new_##field) { \ | |
| 129 SCROLLBAR_MSW_DATA (sb)->field = new_##field; \ | |
| 130 pos_changed = 1; \ | |
| 131 } | |
| 132 | |
| 133 static void | |
| 2286 | 134 mswindows_update_scrollbar_instance_values (struct window *UNUSED (w), |
| 428 | 135 struct scrollbar_instance *sb, |
| 2286 | 136 int UNUSED (new_line_increment), |
| 137 int UNUSED (new_page_increment), | |
| 428 | 138 int new_minimum, int new_maximum, |
| 139 int new_slider_size, | |
| 140 int new_slider_position, | |
| 141 int new_scrollbar_width, | |
| 142 int new_scrollbar_height, | |
| 143 int new_scrollbar_x, | |
| 144 int new_scrollbar_y) | |
| 145 { | |
| 146 int pos_changed = 0; | |
| 771 | 147 int vert = qxeGetWindowLong (SCROLLBAR_MSW_HANDLE (sb), GWL_STYLE) & SBS_VERT; |
| 428 | 148 |
| 149 #if 0 | |
| 150 stderr_out ("[%d, %d], page = %d, pos = %d, inhibit = %d\n", new_minimum, new_maximum, | |
| 151 new_slider_size, new_slider_position,inhibit_slider_size_change); | |
| 152 #endif | |
| 153 | |
| 154 /* These might be optimized, but since at least one will change at each | |
| 155 call, it's probably not worth it. */ | |
| 156 SCROLLBAR_MSW_INFO (sb).nMin = new_minimum; | |
| 157 SCROLLBAR_MSW_INFO (sb).nMax = new_maximum; | |
| 158 SCROLLBAR_MSW_INFO (sb).nPage = new_slider_size + 1; /* +1 for DISABLENOSCROLL */ | |
| 159 SCROLLBAR_MSW_INFO (sb).nPos = new_slider_position; | |
| 160 #ifndef VERTICAL_SCROLLBAR_DRAG_HACK | |
| 161 SCROLLBAR_MSW_INFO (sb).fMask = ((vert && vertical_drag_in_progress) | |
| 162 ? SIF_RANGE | SIF_POS | |
| 163 : SIF_ALL | SIF_DISABLENOSCROLL); | |
| 164 #else | |
| 165 SCROLLBAR_MSW_INFO (sb).fMask = SIF_ALL | SIF_DISABLENOSCROLL; | |
| 166 | |
| 167 /* Ignore XEmacs' requests to update the thumb position and size; they don't | |
| 168 * bear any relation to reality because we're reporting made-up positions */ | |
| 169 if (!(vert && vertical_drag_in_progress)) | |
| 170 #endif | |
| 171 SetScrollInfo (SCROLLBAR_MSW_HANDLE (sb), SB_CTL, &SCROLLBAR_MSW_INFO (sb), | |
| 172 TRUE); | |
| 173 | |
| 174 UPDATE_POS_FIELD (scrollbar_x); | |
| 175 UPDATE_POS_FIELD (scrollbar_y); | |
| 176 UPDATE_POS_FIELD (scrollbar_width); | |
| 177 UPDATE_POS_FIELD (scrollbar_height); | |
| 178 | |
| 442 | 179 if (pos_changed) |
| 428 | 180 { |
| 617 | 181 MoveWindow (SCROLLBAR_MSW_HANDLE (sb), |
| 182 new_scrollbar_x, new_scrollbar_y, | |
| 183 new_scrollbar_width, new_scrollbar_height, | |
| 184 TRUE); | |
| 428 | 185 } |
| 186 } | |
| 187 | |
| 188 static void | |
| 2286 | 189 mswindows_update_scrollbar_instance_status (struct window *UNUSED (w), |
| 190 int UNUSED (active), int size, | |
| 428 | 191 struct scrollbar_instance *sb) |
| 192 { | |
| 193 if (SCROLLBAR_MSW_SIZE (sb) != size) | |
| 194 { | |
| 195 SCROLLBAR_MSW_SIZE (sb) = size; | |
| 196 ShowScrollBar (SCROLLBAR_MSW_HANDLE (sb), SB_CTL, | |
| 197 SCROLLBAR_MSW_SIZE (sb)); | |
| 198 SCROLLBAR_MSW_INFO(sb).fMask |= SIF_DISABLENOSCROLL; | |
| 199 SetScrollInfo(SCROLLBAR_MSW_HANDLE (sb), SB_CTL, &SCROLLBAR_MSW_INFO (sb), TRUE); | |
| 200 } | |
| 201 } | |
| 202 | |
| 203 void | |
| 2286 | 204 mswindows_handle_scrollbar_event (HWND hwnd, int code, int UNUSED (pos)) |
| 428 | 205 { |
| 206 struct frame *f; | |
| 207 Lisp_Object win, frame; | |
| 617 | 208 struct scrollbar_instance *sb = 0; |
| 209 void *v; | |
| 428 | 210 SCROLLINFO scrollinfo; |
| 771 | 211 int vert = qxeGetWindowLong (hwnd, GWL_STYLE) & SBS_VERT; |
| 428 | 212 int value; |
| 213 | |
| 771 | 214 v = (void *) qxeGetWindowLong (hwnd, GWL_USERDATA); |
| 617 | 215 if (!v) |
| 546 | 216 { |
| 617 | 217 /* apparently this can happen, as it was definitely necessary |
| 218 to put the check in for sb below (VERTICAL_SCROLLBAR_DRAG_HACK) */ | |
| 546 | 219 frame = mswindows_find_frame (hwnd); |
| 220 f = XFRAME (frame); | |
| 221 win = FRAME_SELECTED_WINDOW (f); | |
| 222 } | |
| 223 else | |
| 224 { | |
| 617 | 225 Lisp_Object ptr; |
| 5013 | 226 ptr = GET_LISP_FROM_VOID (v); |
| 617 | 227 assert (OPAQUE_PTRP (ptr)); |
| 228 ptr = Fgethash (ptr, Vmswindows_scrollbar_instance_table, Qnil); | |
| 229 sb = XSCROLLBAR_INSTANCE (ptr); | |
| 664 | 230 /* #### we're still hitting an abort here with 0 as the second |
| 231 parameter, although only occasionally. It seems that sometimes we | |
| 232 receive events for scrollbars that don't exist anymore. I assume | |
| 233 it must happen like this: The user does something that causes a | |
| 234 scrollbar to disappear (e.g. Alt-TAB, causing recomputation of | |
| 235 everything in the new frame) and then immediately uses the mouse | |
| 236 wheel, generating scrollbar events. Both events get posted before | |
| 237 we have a chance to process them, and in processing the first, the | |
| 238 scrollbar mentioned in the second disappears. */ | |
| 239 win = real_window (sb->mirror, 1); | |
| 240 if (NILP (win)) | |
| 241 return; | |
| 617 | 242 frame = WINDOW_FRAME (XWINDOW (win)); |
| 546 | 243 f = XFRAME (frame); |
| 244 } | |
| 428 | 245 |
| 673 | 246 /* SB_LINEDOWN == SB_CHARLEFT etc. This is the way they will |
| 247 always be - any Windows is binary compatible backward with | |
| 248 old programs */ | |
| 428 | 249 |
| 250 switch (code) | |
| 251 { | |
| 252 case SB_LINEDOWN: | |
| 253 mswindows_enqueue_misc_user_event | |
| 254 (frame, vert ? Qscrollbar_line_down : Qscrollbar_char_right, win); | |
| 255 break; | |
| 442 | 256 |
| 428 | 257 case SB_LINEUP: |
| 258 mswindows_enqueue_misc_user_event | |
| 259 (frame, vert ? Qscrollbar_line_up : Qscrollbar_char_left, win); | |
| 260 break; | |
| 442 | 261 |
| 428 | 262 case SB_PAGEDOWN: |
| 263 mswindows_enqueue_misc_user_event | |
| 264 (win, vert ? Qscrollbar_page_down : Qscrollbar_page_right, | |
| 265 vert ? Fcons (win, Qnil) : win); | |
| 266 break; | |
| 267 | |
| 268 case SB_PAGEUP: | |
| 269 mswindows_enqueue_misc_user_event | |
| 270 (frame, | |
| 271 vert ? Qscrollbar_page_up : Qscrollbar_page_left, | |
| 272 vert ? Fcons (win, Qnil) : win); | |
| 273 break; | |
| 442 | 274 |
| 428 | 275 case SB_BOTTOM: |
| 276 mswindows_enqueue_misc_user_event | |
| 277 (frame, vert ? Qscrollbar_to_bottom : Qscrollbar_to_right, win); | |
| 278 break; | |
| 279 | |
| 280 case SB_TOP: | |
| 281 mswindows_enqueue_misc_user_event | |
| 282 (frame, vert ? Qscrollbar_to_top : Qscrollbar_to_left, win); | |
| 283 break; | |
| 284 | |
| 285 case SB_THUMBTRACK: | |
| 286 case SB_THUMBPOSITION: | |
| 287 scrollinfo.cbSize = sizeof(SCROLLINFO); | |
| 288 scrollinfo.fMask = SIF_ALL; | |
| 289 GetScrollInfo (hwnd, SB_CTL, &scrollinfo); | |
| 290 vertical_drag_in_progress = vert; | |
| 291 #ifdef VERTICAL_SCROLLBAR_DRAG_HACK | |
| 292 if (vert && (scrollinfo.nTrackPos > scrollinfo.nPos)) | |
| 293 /* new buffer position = | |
| 294 * buffer position at start of drag + | |
| 295 * ((text remaining in buffer at start of drag) * | |
| 296 * (amount that the thumb has been moved) / | |
| 297 * (space that remained past end of the thumb at start of drag)) */ | |
| 298 value = (int) | |
| 299 (scrollinfo.nPos | |
| 300 + (((double) | |
| 301 (scrollinfo.nMax - scrollinfo.nPos) | |
| 302 * (scrollinfo.nTrackPos - scrollinfo.nPos)) | |
| 303 / (scrollinfo.nMax - scrollinfo.nPage - scrollinfo.nPos))) | |
| 304 - 2; /* ensure that the last line doesn't disappear off screen */ | |
| 305 else | |
| 306 #endif | |
| 307 value = scrollinfo.nTrackPos; | |
| 308 mswindows_enqueue_misc_user_event | |
| 309 (frame, | |
| 310 vert ? Qscrollbar_vertical_drag : Qscrollbar_horizontal_drag, | |
| 311 Fcons (win, make_int (value))); | |
| 312 break; | |
| 313 | |
| 314 case SB_ENDSCROLL: | |
| 315 #ifdef VERTICAL_SCROLLBAR_DRAG_HACK | |
| 546 | 316 if (vertical_drag_in_progress && sb) |
| 428 | 317 /* User has just dropped the thumb - finally update it */ |
| 318 SetScrollInfo (SCROLLBAR_MSW_HANDLE (sb), SB_CTL, | |
| 319 &SCROLLBAR_MSW_INFO (sb), TRUE); | |
| 320 #endif | |
| 321 vertical_drag_in_progress = 0; | |
| 322 break; | |
| 323 } | |
| 324 } | |
| 325 | |
| 326 static int | |
| 771 | 327 can_scroll (struct scrollbar_instance *scrollbar) |
| 428 | 328 { |
| 329 return scrollbar != NULL | |
| 330 && IsWindowVisible (SCROLLBAR_MSW_HANDLE (scrollbar)) | |
| 331 && IsWindowEnabled (SCROLLBAR_MSW_HANDLE (scrollbar)); | |
| 332 } | |
| 333 | |
| 334 int | |
| 464 | 335 mswindows_handle_mousewheel_event (Lisp_Object frame, int keys, int delta, |
| 336 POINTS where) | |
| 428 | 337 { |
| 442 | 338 int hasVertBar, hasHorzBar; /* Indicates presence of scroll bars */ |
| 428 | 339 unsigned wheelScrollLines = 0; /* Number of lines per wheel notch */ |
| 826 | 340 Lisp_Object win = Qnil, corpore, sano; |
| 464 | 341 struct window_mirror *mirror; |
| 707 | 342 int mene, _mene, tekel, upharsin; |
| 343 Charbpos mens, sana; | |
| 344 Charcount in; | |
| 345 struct window *needle_in_haystack = 0; | |
| 464 | 346 POINT donde_esta; |
| 428 | 347 |
| 464 | 348 donde_esta.x = where.x; |
| 349 donde_esta.y = where.y; | |
| 350 | |
| 351 /* Find the window to scroll */ | |
| 352 | |
| 707 | 353 /* The mouse event could actually occur outside of the emacs |
| 354 frame. */ | |
| 355 if (ScreenToClient (FRAME_MSWINDOWS_HANDLE (XFRAME (frame)), | |
| 356 &donde_esta) != 0) | |
| 357 { | |
| 819 | 358 /* stderr_out ("donde_esta: %d %d\n", donde_esta.x, donde_esta.y); */ |
| 359 pixel_to_glyph_translation (XFRAME (frame), donde_esta.x, donde_esta.y, | |
| 360 &mene, &_mene, &tekel, &upharsin, | |
| 361 &needle_in_haystack, | |
| 362 &mens, &sana, &in, &corpore, &sano); | |
| 363 | |
| 364 if (needle_in_haystack) | |
| 365 { | |
| 366 win = wrap_window (needle_in_haystack); | |
| 367 /* stderr_out ("found needle\n"); | |
| 368 debug_print (win); */ | |
| 369 } | |
| 707 | 370 } |
| 819 | 371 |
| 372 if (!needle_in_haystack) | |
| 707 | 373 { |
| 374 win = FRAME_SELECTED_WINDOW (XFRAME (frame)); | |
| 375 needle_in_haystack = XWINDOW (win); | |
| 376 } | |
| 464 | 377 |
| 707 | 378 mirror = find_window_mirror (needle_in_haystack); |
| 428 | 379 |
| 380 /* Check that there is something to scroll */ | |
| 381 hasVertBar = can_scroll (mirror->scrollbar_vertical_instance); | |
| 382 hasHorzBar = can_scroll (mirror->scrollbar_horizontal_instance); | |
| 383 if (!hasVertBar && !hasHorzBar) | |
| 384 return FALSE; | |
| 385 | |
| 386 /* No support for panning and zooming, so ignore */ | |
| 387 if (keys & (MK_SHIFT | MK_CONTROL)) | |
| 388 return FALSE; | |
| 389 | |
| 390 /* Get the number of lines per wheel delta */ | |
| 771 | 391 qxeSystemParametersInfo (SPI_GETWHEELSCROLLLINES, 0, &wheelScrollLines, 0); |
| 428 | 392 |
| 393 /* Calculate the amount to scroll */ | |
| 394 if (wheelScrollLines == WHEEL_PAGESCROLL) | |
| 395 { | |
| 396 /* Scroll by a page */ | |
| 397 Lisp_Object function; | |
| 398 if (hasVertBar) | |
| 399 function = delta > 0 ? Qscrollbar_page_up : Qscrollbar_page_down; | |
| 400 else | |
| 401 function = delta > 0 ? Qscrollbar_page_left : Qscrollbar_page_right; | |
| 402 mswindows_enqueue_misc_user_event (frame, function, Fcons (win, Qnil)); | |
| 403 } | |
| 404 else /* Scroll by a number of lines */ | |
| 405 { | |
| 406 /* Calc the number of lines to scroll */ | |
| 407 int toScroll = MulDiv (delta, wheelScrollLines, WHEEL_DELTA); | |
| 408 | |
| 409 /* Do the scroll */ | |
| 410 Lisp_Object function; | |
| 411 if (hasVertBar) | |
| 412 function = delta > 0 ? Qscrollbar_line_up : Qscrollbar_line_down; | |
| 413 else | |
| 414 function = delta > 0 ? Qscrollbar_char_left : Qscrollbar_char_right; | |
| 415 if (toScroll < 0) | |
| 416 toScroll = -toScroll; | |
| 417 while (toScroll--) | |
| 418 mswindows_enqueue_misc_user_event (frame, function, win); | |
| 419 } | |
| 420 | |
| 421 return TRUE; | |
| 422 } | |
| 423 | |
| 424 #ifdef MEMORY_USAGE_STATS | |
| 425 | |
| 426 static int | |
| 2286 | 427 mswindows_compute_scrollbar_instance_usage (struct device *UNUSED (d), |
| 428 struct scrollbar_instance *inst, | |
|
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429 struct usage_stats *ustats) |
| 428 | 430 { |
| 431 int total = 0; | |
| 432 | |
| 433 while (inst) | |
| 434 { | |
| 435 struct mswindows_scrollbar_data *data = | |
| 436 (struct mswindows_scrollbar_data *) inst->scrollbar_data; | |
| 437 | |
|
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diff
changeset
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438 total += malloced_storage_size (data, sizeof (*data), ustats); |
| 428 | 439 inst = inst->next; |
| 440 } | |
| 441 | |
| 442 return total; | |
| 443 } | |
| 444 | |
| 445 #endif /* MEMORY_USAGE_STATS */ | |
| 446 | |
| 447 /************************************************************************/ | |
| 448 /* Device-specific ghost specifiers initialization */ | |
| 449 /************************************************************************/ | |
| 450 | |
| 617 | 451 DEFUN ("mswindows-init-scrollbar-metrics", Fmswindows_init_scrollbar_metrics, |
| 452 1, 1, 0, /* | |
| 428 | 453 */ |
| 454 (locale)) | |
| 455 { | |
| 456 if (DEVICEP (locale)) | |
| 457 { | |
| 458 add_spec_to_ghost_specifier (Vscrollbar_width, | |
| 459 make_int (GetSystemMetrics (SM_CXVSCROLL)), | |
| 460 locale, Qmswindows, Qnil); | |
| 461 add_spec_to_ghost_specifier (Vscrollbar_height, | |
| 462 make_int (GetSystemMetrics (SM_CYHSCROLL)), | |
| 463 locale, Qmswindows, Qnil); | |
| 464 } | |
| 465 return Qnil; | |
| 466 } | |
| 467 | |
| 468 | |
| 469 /************************************************************************/ | |
| 470 /* initialization */ | |
| 471 /************************************************************************/ | |
| 472 | |
| 473 void | |
| 474 console_type_create_scrollbar_mswindows (void) | |
| 475 { | |
| 476 CONSOLE_HAS_METHOD (mswindows, create_scrollbar_instance); | |
| 477 CONSOLE_HAS_METHOD (mswindows, free_scrollbar_instance); | |
| 478 CONSOLE_HAS_METHOD (mswindows, release_scrollbar_instance); | |
| 479 CONSOLE_HAS_METHOD (mswindows, update_scrollbar_instance_values); | |
| 480 CONSOLE_HAS_METHOD (mswindows, update_scrollbar_instance_status); | |
| 481 /* CONSOLE_HAS_METHOD (mswindows, scrollbar_width_changed_in_frame); */ | |
| 482 #ifdef MEMORY_USAGE_STATS | |
| 483 CONSOLE_HAS_METHOD (mswindows, compute_scrollbar_instance_usage); | |
| 484 #endif | |
| 485 } | |
| 486 | |
| 487 void | |
| 617 | 488 syms_of_scrollbar_mswindows (void) |
| 428 | 489 { |
| 490 DEFSUBR (Fmswindows_init_scrollbar_metrics); | |
| 491 } | |
| 492 | |
| 493 void | |
| 617 | 494 vars_of_scrollbar_mswindows (void) |
| 428 | 495 { |
| 496 Fprovide (intern ("mswindows-scrollbars")); | |
| 497 | |
| 617 | 498 staticpro (&Vmswindows_scrollbar_instance_table); |
| 499 Vmswindows_scrollbar_instance_table = | |
| 500 make_lisp_hash_table (100, HASH_TABLE_NON_WEAK, HASH_TABLE_EQ); | |
| 501 } |