Mercurial > hg > xemacs-beta
annotate src/redisplay-output.c @ 5554:a42e686a01bf
Automated merge with file:///Sources/xemacs-21.5-checked-out
| author | Aidan Kehoe <kehoea@parhasard.net> |
|---|---|
| date | Wed, 24 Aug 2011 11:07:26 +0100 |
| parents | f87be7ddd60d |
| children | 56144c8593a8 |
| rev | line source |
|---|---|
| 428 | 1 /* Synchronize redisplay structures and output changes. |
| 2 Copyright (C) 1994, 1995 Board of Trustees, University of Illinois. | |
| 1318 | 3 Copyright (C) 1995, 1996, 2002, 2003 Ben Wing. |
| 428 | 4 Copyright (C) 1996 Chuck Thompson. |
| 863 | 5 Copyright (C) 1999, 2002 Andy Piper. |
|
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6 Copyright (C) 2010 Didier Verna |
| 428 | 7 |
| 8 This file is part of XEmacs. | |
| 9 | |
|
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10 XEmacs is free software: you can redistribute it and/or modify it |
| 428 | 11 under the terms of the GNU General Public License as published by the |
|
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12 Free Software Foundation, either version 3 of the License, or (at your |
|
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13 option) any later version. |
| 428 | 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 | |
|
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21 along with XEmacs. If not, see <http://www.gnu.org/licenses/>. */ |
| 428 | 22 |
| 23 /* Synched up with: Not in FSF. */ | |
| 24 | |
| 25 /* This file has been Mule-ized. */ | |
| 26 | |
| 27 /* Author: Chuck Thompson */ | |
| 28 | |
| 29 /* Heavily hacked for modularity, gutter and subwindow support by Andy | |
| 30 Piper. */ | |
| 31 | |
| 32 #include <config.h> | |
| 33 #include "lisp.h" | |
| 34 | |
| 35 #include "buffer.h" | |
| 36 #include "window.h" | |
| 872 | 37 #include "frame-impl.h" |
| 38 #include "device-impl.h" | |
| 428 | 39 #include "glyphs.h" |
| 40 #include "redisplay.h" | |
| 41 #include "faces.h" | |
| 446 | 42 #include "gutter.h" |
| 428 | 43 |
| 44 static int compare_runes (struct window *w, struct rune *crb, | |
| 45 struct rune *drb); | |
| 46 static void redraw_cursor_in_window (struct window *w, | |
| 47 int run_end_begin_glyphs); | |
| 48 static void redisplay_output_display_block (struct window *w, struct display_line *dl, | |
| 49 int block, int start, int end, int start_pixpos, | |
| 434 | 50 int cursor_start, int cursor_width, |
| 428 | 51 int cursor_height); |
| 434 | 52 static void redisplay_normalize_display_box (struct display_box* dest, |
| 428 | 53 struct display_glyph_area* src); |
| 54 static int redisplay_display_boxes_in_window_p (struct window* w, | |
| 55 struct display_box* db, | |
| 56 struct display_glyph_area* dga); | |
| 434 | 57 static void redisplay_clear_clipped_region (Lisp_Object locale, face_index findex, |
| 58 struct display_box* dest, | |
| 59 struct display_glyph_area* glyphsrc, | |
| 428 | 60 int fullheight_p, Lisp_Object); |
| 1318 | 61 static void redisplay_redraw_exposed_windows (Lisp_Object window, int x, |
| 62 int y, int width, int height); | |
| 428 | 63 |
| 64 /***************************************************************************** | |
| 65 sync_rune_structs | |
| 66 | |
| 67 Synchronize the given rune blocks. | |
| 68 ****************************************************************************/ | |
| 69 static void | |
| 2286 | 70 sync_rune_structs (struct window *UNUSED (w), rune_dynarr *cra, |
| 71 rune_dynarr *dra) | |
| 428 | 72 { |
| 73 int rune_elt; | |
| 74 int max_move = ((Dynarr_length (dra) > Dynarr_largest (cra)) | |
| 75 ? Dynarr_largest (cra) | |
| 76 : Dynarr_length (dra)); | |
| 77 | |
| 78 if (max_move) | |
| 79 { | |
| 80 /* #### Doing this directly breaks the encapsulation. But, the | |
| 4187 | 81 running time of this function has a measurable impact on |
| 82 redisplay performance so avoiding all excess overhead is a | |
| 83 good thing. Is all of this true? */ | |
| 428 | 84 memcpy (cra->base, dra->base, sizeof (struct rune) * max_move); |
| 5038 | 85 Dynarr_set_lengthr (cra, max_move); |
| 428 | 86 } |
| 87 else | |
| 88 Dynarr_reset (cra); | |
| 89 | |
| 90 for (rune_elt = max_move; rune_elt < Dynarr_length (dra); rune_elt++) | |
| 91 { | |
| 92 struct rune rb, *crb; | |
| 93 struct rune *drb = Dynarr_atp (dra, rune_elt); | |
| 94 | |
| 95 crb = &rb; | |
| 96 memcpy (crb, drb, sizeof (struct rune)); | |
| 97 Dynarr_add (cra, *crb); | |
| 98 } | |
| 99 } | |
| 100 | |
| 101 /***************************************************************************** | |
| 102 sync_display_line_structs | |
| 103 | |
| 104 For the given LINE in window W, make the current display line equal | |
| 105 the desired display line. | |
| 106 ****************************************************************************/ | |
| 442 | 107 void |
| 428 | 108 sync_display_line_structs (struct window *w, int line, int do_blocks, |
| 109 display_line_dynarr *cdla, | |
| 110 display_line_dynarr *ddla) | |
| 111 { | |
| 112 struct display_line dl, *clp, *dlp; | |
| 113 int db_elt; | |
| 800 | 114 int local = 0; |
| 428 | 115 |
| 4207 | 116 /* #### NOTE: practically, this is not needed because of the memcpy below. |
| 117 #### However, it's cleaner and bugs-in-the-future proof. -- dvl */ | |
| 118 DISPLAY_LINE_INIT (dl); | |
| 428 | 119 dlp = Dynarr_atp (ddla, line); |
| 120 if (line >= Dynarr_largest (cdla)) | |
| 121 { | |
| 122 clp = &dl; | |
| 123 clp->display_blocks = Dynarr_new (display_block); | |
| 800 | 124 local = 1; |
| 428 | 125 } |
| 126 else | |
| 127 { | |
| 128 clp = Dynarr_atp (cdla, line); | |
| 129 if (clp->display_blocks) | |
| 130 Dynarr_reset (clp->display_blocks); | |
| 131 if (clp->left_glyphs) | |
| 132 { | |
| 133 Dynarr_free (clp->left_glyphs); | |
| 134 clp->left_glyphs = 0; | |
| 135 } | |
| 136 if (clp->right_glyphs) | |
| 137 { | |
| 138 Dynarr_free (clp->right_glyphs); | |
| 139 clp->right_glyphs = 0; | |
| 140 } | |
| 141 } | |
| 142 { | |
| 143 display_block_dynarr *tdb = clp->display_blocks; | |
| 144 | |
| 145 memcpy (clp, dlp, sizeof (struct display_line)); | |
| 146 clp->display_blocks = tdb; | |
| 147 clp->left_glyphs = 0; | |
| 148 clp->right_glyphs = 0; | |
| 149 } | |
| 150 | |
| 800 | 151 if (do_blocks || line < Dynarr_length (cdla)) |
| 428 | 152 { |
| 800 | 153 for (db_elt = 0; db_elt < Dynarr_length (dlp->display_blocks); db_elt++) |
| 154 { | |
| 155 struct display_block db, *cdb; | |
| 156 struct display_block *ddb = Dynarr_atp (dlp->display_blocks, db_elt); | |
| 157 | |
| 158 if (db_elt >= Dynarr_largest (clp->display_blocks)) | |
| 159 { | |
| 160 cdb = &db; | |
| 161 memcpy (cdb, ddb, sizeof (struct display_block)); | |
| 162 cdb->runes = Dynarr_new (rune); | |
| 163 Dynarr_add (clp->display_blocks, *cdb); | |
| 164 } | |
| 165 else | |
| 166 { | |
| 167 rune_dynarr *tr; | |
| 168 | |
| 169 cdb = Dynarr_atp (clp->display_blocks, db_elt); | |
| 170 tr = cdb->runes; | |
| 171 memcpy (cdb, ddb, sizeof (struct display_block)); | |
| 172 cdb->runes = tr; | |
| 5038 | 173 Dynarr_incrementr (clp->display_blocks); |
| 800 | 174 } |
| 175 | |
| 176 sync_rune_structs (w, cdb->runes, ddb->runes); | |
| 177 } | |
| 428 | 178 } |
| 179 | |
| 800 | 180 if (local) |
| 181 Dynarr_add (cdla, *clp); | |
| 182 else if (line >= Dynarr_length (cdla)) | |
| 428 | 183 { |
| 800 | 184 assert (line == Dynarr_length (cdla)); |
| 5038 | 185 Dynarr_incrementr (cdla); |
| 428 | 186 } |
| 187 } | |
| 188 | |
| 189 /***************************************************************************** | |
| 190 compare_runes | |
| 191 | |
| 448 | 192 Compare two runes to see if each of their fields is equal. If so, |
| 428 | 193 return true otherwise return false. |
| 194 ****************************************************************************/ | |
| 195 static int | |
| 196 compare_runes (struct window *w, struct rune *crb, struct rune *drb) | |
| 197 { | |
| 665 | 198 /* Do not compare the values of charbpos and endpos. They do not |
| 428 | 199 affect the display characteristics. */ |
| 200 | |
| 201 /* Note: (hanoi 6) spends 95% of its time in redisplay, and about | |
| 202 30% here. Not using bitfields for rune.type alone gives a redisplay | |
| 203 speed up of 10%. | |
| 204 | |
| 205 #### In profile arcs run of a normal Gnus session this function | |
| 206 is run 6.76 million times, only to return 1 in 6.73 million of | |
| 207 those. | |
| 208 | |
| 209 In addition a quick look GCC sparc assembly shows that GCC is not | |
| 210 doing a good job here. | |
| 211 1. The function is not inlined (too complicated?) | |
| 212 2. It seems to be reloading the crb and drb variables all the | |
| 213 time. | |
| 214 3. It doesn't seem to notice that the second half of these if's | |
| 215 are really a switch statement. | |
| 216 | |
| 217 So I (JV) conjecture | |
| 218 | |
| 219 #### It would really be worth it to arrange for this function to | |
| 220 be (almost) a single call to memcmp. */ | |
| 434 | 221 |
| 442 | 222 if (crb->xpos != drb->xpos) |
| 428 | 223 return 0; |
| 224 else if (crb->width != drb->width) | |
| 225 return 0; | |
| 226 else if (crb->cursor_type != drb->cursor_type) | |
| 227 return 0; | |
| 228 else if (crb->type != drb->type) | |
| 229 return 0; | |
| 230 else if (crb->type == RUNE_CHAR && | |
| 231 (crb->object.chr.ch != drb->object.chr.ch)) | |
| 232 return 0; | |
| 233 else if (crb->type == RUNE_HLINE && | |
| 234 (crb->object.hline.thickness != drb->object.hline.thickness || | |
| 235 crb->object.hline.yoffset != drb->object.hline.yoffset)) | |
| 236 return 0; | |
| 434 | 237 else if (crb->type == RUNE_DGLYPH && |
| 428 | 238 (!EQ (crb->object.dglyph.glyph, drb->object.dglyph.glyph) || |
| 239 !EQ (crb->object.dglyph.extent, drb->object.dglyph.extent) || | |
| 819 | 240 crb->object.dglyph.xoffset != drb->object.dglyph.xoffset || |
| 241 crb->object.dglyph.yoffset != drb->object.dglyph.yoffset || | |
| 4187 | 242 crb->object.dglyph.ascent != drb->object.dglyph.ascent || |
| 243 crb->object.dglyph.descent != drb->object.dglyph.descent)) | |
| 428 | 244 return 0; |
| 245 /* Only check dirtiness if we know something has changed. */ | |
| 246 else if (crb->type == RUNE_DGLYPH && | |
| 442 | 247 (XGLYPH_DIRTYP (crb->object.dglyph.glyph) || |
| 248 crb->findex != drb->findex)) | |
| 428 | 249 { |
| 442 | 250 /* We need some way of telling redisplay_output_layout () that the |
| 4187 | 251 only reason we are outputting it is because something has |
| 252 changed internally. That way we can optimize whether we need | |
| 253 to clear the layout first and also only output the components | |
| 254 that have changed. The image_instance dirty flag and | |
| 255 display_hash are no good to us because these will invariably | |
| 256 have been set anyway if the layout has changed. So it looks | |
| 257 like we need yet another change flag that we can set here and | |
| 258 then clear in redisplay_output_layout (). */ | |
| 442 | 259 Lisp_Object window, image; |
| 260 Lisp_Image_Instance* ii; | |
| 793 | 261 window = wrap_window (w); |
| 442 | 262 image = glyph_image_instance (crb->object.dglyph.glyph, |
| 793 | 263 window, ERROR_ME_DEBUG_WARN, 1); |
| 442 | 264 |
| 265 if (!IMAGE_INSTANCEP (image)) | |
| 266 return 0; | |
| 267 ii = XIMAGE_INSTANCE (image); | |
| 268 | |
| 269 if (TEXT_IMAGE_INSTANCEP (image) && | |
| 270 (crb->findex != drb->findex || | |
| 271 WINDOW_FACE_CACHEL_DIRTY (w, drb->findex))) | |
| 428 | 272 return 0; |
| 442 | 273 |
| 274 /* It is quite common for the two glyphs to be EQ since in many | |
| 275 cases they will actually be the same object. This does not | |
| 276 mean, however, that nothing has changed. We therefore need to | |
| 277 check the current hash of the glyph against the last recorded | |
| 278 display hash and the pending display items. See | |
| 279 update_subwindow (). */ | |
| 280 if (image_instance_changed (image) || | |
| 281 crb->findex != drb->findex || | |
| 282 WINDOW_FACE_CACHEL_DIRTY (w, drb->findex)) | |
| 283 { | |
| 638 | 284 /* Now we are going to re-output the glyph, but since |
| 442 | 285 this is for some internal reason not related to geometry |
| 286 changes, send a hint to the output routines that they can | |
| 287 take some short cuts. This is most useful for | |
| 288 layouts. This flag should get reset by the output | |
| 289 routines. | |
| 290 | |
| 291 #### It is possible for us to get here when the | |
| 292 face_cachel is dirty. I do not know what the implications | |
| 293 of this are.*/ | |
| 294 IMAGE_INSTANCE_OPTIMIZE_OUTPUT (ii) = 1; | |
| 295 return 0; | |
| 296 } | |
| 434 | 297 else |
| 428 | 298 return 1; |
| 299 } | |
| 442 | 300 /* We now do this last so that glyph checks can do their own thing |
| 301 for face changes. Face changes quite often happen when we are | |
| 302 trying to output something in the gutter, this would normally | |
| 303 lead to a lot of flashing. The indices can quite often be | |
| 304 different and yet the faces are the same, we do not want to | |
| 305 re-output in this instance. */ | |
| 306 else if (crb->findex != drb->findex || | |
| 307 WINDOW_FACE_CACHEL_DIRTY (w, drb->findex)) | |
| 308 return 0; | |
| 428 | 309 else |
| 310 return 1; | |
| 311 } | |
| 312 | |
| 851 | 313 #if 0 |
| 314 void | |
| 315 compare_runes_2 (struct window *w, struct rune *crb, struct rune *drb) | |
| 316 { | |
| 317 if (crb->type == DGLYPH) | |
| 318 { | |
| 319 if (!EQ (crb->object.dglyph.glyph, drb->object.dglyph.glyph) || | |
| 320 !EQ (crb->object.dglyph.extent, drb->object.dglyph.extent) || | |
| 321 crb->object.dglyph.xoffset != drb->object.dglyph.xoffset || | |
| 322 crb->object.dglyph.yoffset != drb->object.dglyph.yoffset || | |
| 323 crb->object.dglyph.ascent != drb->object.dglyph.ascent || | |
| 324 crb->object.dglyph.descent != drb->object.dglyph.descent) | |
| 325 return 0; | |
| 326 /* Only check dirtiness if we know something has changed. */ | |
| 327 else if (XGLYPH_DIRTYP (crb->object.dglyph.glyph) || | |
| 328 crb->findex != drb->findex) | |
| 329 { | |
| 330 /* We need some way of telling redisplay_output_layout () that the | |
| 331 only reason we are outputting it is because something has | |
| 332 changed internally. That way we can optimize whether we need | |
| 333 to clear the layout first and also only output the components | |
| 334 that have changed. The image_instance dirty flag and | |
| 335 display_hash are no good to us because these will invariably | |
| 336 have been set anyway if the layout has changed. So it looks | |
| 337 like we need yet another change flag that we can set here and | |
| 338 then clear in redisplay_output_layout (). */ | |
| 339 Lisp_Object window, image; | |
| 340 Lisp_Image_Instance* ii; | |
| 341 window = wrap_window (w); | |
| 342 image = glyph_image_instance (crb->object.dglyph.glyph, | |
| 343 window, crb->object.dglyph.matchspec, | |
| 344 ERROR_ME_DEBUG_WARN, 1); | |
| 4187 | 345 |
| 851 | 346 if (!IMAGE_INSTANCEP (image)) |
| 347 return 0; | |
| 348 ii = XIMAGE_INSTANCE (image); | |
| 4187 | 349 |
| 851 | 350 if (TEXT_IMAGE_INSTANCEP (image) && |
| 351 (crb->findex != drb->findex || | |
| 352 WINDOW_FACE_CACHEL_DIRTY (w, drb->findex))) | |
| 353 return 0; | |
| 4187 | 354 |
| 851 | 355 /* It is quite common for the two glyphs to be EQ since in many |
| 356 cases they will actually be the same object. This does not | |
| 357 mean, however, that nothing has changed. We therefore need to | |
| 358 check the current hash of the glyph against the last recorded | |
| 359 display hash and the pending display items. See | |
| 360 update_widget () ^^#### which function?. */ | |
| 361 if (image_instance_changed (image) || | |
| 362 crb->findex != drb->findex || | |
| 363 WINDOW_FACE_CACHEL_DIRTY (w, drb->findex)) | |
| 364 { | |
| 365 /* Now we are going to re-output the glyph, but since | |
| 366 this is for some internal reason not related to geometry | |
| 367 changes, send a hint to the output routines that they can | |
| 368 take some short cuts. This is most useful for | |
| 369 layouts. This flag should get reset by the output | |
| 370 routines. | |
| 4187 | 371 |
| 851 | 372 #### It is possible for us to get here when the |
| 373 face_cachel is dirty. I do not know what the implications | |
| 374 of this are.*/ | |
| 375 IMAGE_INSTANCE_OPTIMIZE_OUTPUT (ii) = 1; | |
| 376 return 0; | |
| 377 } | |
| 378 else | |
| 379 return 1; | |
| 380 } | |
| 381 else if (crb->findex != drb->findex || | |
| 382 WINDOW_FACE_CACHEL_DIRTY (w, drb->findex)) | |
| 383 return 0; | |
| 384 else | |
| 385 return 1; | |
| 386 } | |
| 387 else return !(memcmp (crb, drb, sizeof (*crb)) || | |
| 388 WINDOW_FACE_CACHEL_DIRTY (w, drb->findex)); | |
| 389 } | |
| 390 #endif | |
| 391 | |
| 392 | |
| 428 | 393 /***************************************************************************** |
| 394 get_next_display_block | |
| 395 | |
| 396 Return the next display starting at or overlapping START_POS. Return | |
| 397 the start of the next region in NEXT_START. | |
| 398 ****************************************************************************/ | |
| 399 int | |
| 400 get_next_display_block (layout_bounds bounds, display_block_dynarr *dba, | |
| 401 int start_pos, int *next_start) | |
| 402 { | |
| 403 int next_display_block = NO_BLOCK; | |
| 404 int priority = -1; | |
| 405 int block; | |
| 406 | |
| 407 /* If we don't find a display block covering or starting at | |
| 408 start_pos, then we return the starting point of the next display | |
| 409 block or the next division boundary, whichever is closer to | |
| 410 start_pos. */ | |
| 411 if (next_start) | |
| 412 { | |
| 413 if (start_pos >= bounds.left_out && start_pos < bounds.left_in) | |
| 414 *next_start = bounds.left_in; | |
| 415 else if (start_pos < bounds.left_white) | |
| 416 *next_start = bounds.left_white; | |
| 417 else if (start_pos < bounds.right_white) | |
| 418 *next_start = bounds.right_white; | |
| 419 else if (start_pos < bounds.right_in) | |
| 420 *next_start = bounds.right_in; | |
| 421 else if (start_pos <= bounds.right_out) | |
| 422 *next_start = bounds.right_out; | |
| 423 else | |
| 4932 | 424 { |
| 425 ABORT (); | |
| 426 *next_start = 0; | |
| 427 } | |
| 428 | 428 } |
| 429 | |
| 430 for (block = 0; block < Dynarr_length (dba); block++) | |
| 431 { | |
| 432 struct display_block *db = Dynarr_atp (dba, block); | |
| 433 | |
| 434 if (db->start_pos <= start_pos && db->end_pos > start_pos) | |
| 435 { | |
| 436 if ((int) db->type > priority) | |
| 437 { | |
| 438 priority = db->type; | |
| 439 next_display_block = block; | |
| 440 if (next_start) | |
| 441 *next_start = db->end_pos; | |
| 442 } | |
| 443 } | |
| 444 else if (next_start && db->start_pos > start_pos) | |
| 445 { | |
| 446 if (db->start_pos < *next_start) | |
| 447 *next_start = db->start_pos; | |
| 448 } | |
| 449 } | |
| 450 | |
| 451 return next_display_block; | |
| 452 } | |
| 453 | |
| 454 /***************************************************************************** | |
| 455 get_cursor_size_and_location | |
| 456 | |
| 457 Return the information defining the pixel location of the cursor. | |
| 458 ****************************************************************************/ | |
| 459 static void | |
| 460 get_cursor_size_and_location (struct window *w, struct display_block *db, | |
| 461 int cursor_location, | |
| 462 int *cursor_start, int *cursor_width, | |
| 463 int *cursor_height) | |
| 464 { | |
| 465 struct rune *rb; | |
| 466 Lisp_Object window; | |
| 467 int defheight, defwidth; | |
| 468 | |
| 469 if (Dynarr_length (db->runes) <= cursor_location) | |
| 2500 | 470 ABORT (); |
| 428 | 471 |
| 793 | 472 window = wrap_window (w); |
| 428 | 473 |
| 474 rb = Dynarr_atp (db->runes, cursor_location); | |
| 475 *cursor_start = rb->xpos; | |
| 476 | |
|
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477 default_face_width_and_height (window, &defwidth, &defheight); |
| 428 | 478 *cursor_height = defheight; |
| 479 | |
| 480 if (rb->type == RUNE_BLANK) | |
| 481 *cursor_width = defwidth; | |
| 482 else | |
| 483 *cursor_width = rb->width; | |
| 484 } | |
| 485 | |
| 486 /***************************************************************************** | |
| 487 compare_display_blocks | |
| 488 | |
| 489 Given two display blocks, output only those areas where they differ. | |
| 490 ****************************************************************************/ | |
| 491 static int | |
| 492 compare_display_blocks (struct window *w, struct display_line *cdl, | |
| 493 struct display_line *ddl, int c_block, int d_block, | |
| 494 int start_pixpos, int cursor_start, int cursor_width, | |
| 495 int cursor_height) | |
| 496 { | |
| 497 struct frame *f = XFRAME (w->frame); | |
| 498 struct display_block *cdb, *ddb; | |
| 499 int start_pos; | |
| 500 int stop_pos; | |
| 501 int force = 0; | |
| 2286 | 502 #if 0 |
| 428 | 503 int block_end; |
| 2286 | 504 #endif |
| 428 | 505 |
| 506 cdb = Dynarr_atp (cdl->display_blocks, c_block); | |
| 507 ddb = Dynarr_atp (ddl->display_blocks, d_block); | |
| 508 | |
| 509 assert (cdb->type == ddb->type); | |
| 510 | |
| 511 start_pos = -1; | |
| 512 stop_pos = min (Dynarr_length (cdb->runes), Dynarr_length (ddb->runes)); | |
| 513 | |
| 2286 | 514 #if 0 |
| 428 | 515 block_end = |
| 516 (!Dynarr_length (ddb->runes) | |
| 517 ? 0 | |
|
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518 : (Dynarr_lastp (ddb->runes)->xpos + |
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parents:
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diff
changeset
|
519 Dynarr_lastp (ddb->runes)->width)); |
| 2286 | 520 #endif |
| 428 | 521 |
| 522 /* If the new block type is not text and the cursor status is | |
| 523 changing and it overlaps the position of this block then force a | |
| 524 full redraw of the block in order to make sure that the cursor is | |
| 525 updated properly. */ | |
| 526 if (ddb->type != TEXT | |
| 527 #if 0 | |
| 528 /* I'm not sure exactly what this code wants to do, but it's | |
| 529 * not right--it doesn't update when cursor_elt changes from, e.g., | |
| 530 * 0 to 8, and the new or old cursor loc overlaps this block. | |
| 531 * I've replaced it with the more conservative test below. | |
| 532 * -dkindred@cs.cmu.edu 23-Mar-1997 */ | |
| 533 && ((cdl->cursor_elt == -1 && ddl->cursor_elt != -1) | |
| 534 || (cdl->cursor_elt != -1 && ddl->cursor_elt == -1)) | |
| 535 && (ddl->cursor_elt == -1 || | |
| 536 (cursor_start | |
| 537 && cursor_width | |
| 538 && (cursor_start + cursor_width) >= start_pixpos | |
| 539 && cursor_start <= block_end)) | |
| 540 #else | |
| 541 && (cdl->cursor_elt != ddl->cursor_elt) | |
| 542 #endif | |
| 543 ) | |
| 544 force = 1; | |
| 545 | |
| 546 if (f->windows_structure_changed || | |
| 547 /* #### Why is this so? We have face cachels so that we don't | |
| 4187 | 548 have to recalculate all the display blocks when faces |
| 549 change. I have fixed this for glyphs and am inclined to think | |
| 550 that faces should "Just Work", but I'm not feeling brave | |
| 551 today. Maybe its because the face cachels represent merged | |
| 552 faces rather than simply instantiations in a particular | |
| 553 domain. */ | |
| 428 | 554 f->faces_changed || |
| 555 cdl->ypos != ddl->ypos || | |
| 556 cdl->ascent != ddl->ascent || | |
| 557 cdl->descent != ddl->descent || | |
| 558 cdl->clip != ddl->clip || | |
| 559 force) | |
| 560 { | |
| 561 start_pos = 0; | |
| 562 force = 1; | |
| 563 } | |
| 564 else | |
| 565 { | |
| 566 int elt = 0; | |
| 567 | |
| 568 while (start_pos < 0 && elt < stop_pos) | |
| 569 { | |
| 570 if (!compare_runes (w, Dynarr_atp (cdb->runes, elt), | |
| 571 Dynarr_atp (ddb->runes, elt))) | |
| 572 { | |
| 573 start_pos = elt; | |
| 574 } | |
| 575 else | |
| 576 { | |
| 577 elt++; | |
| 578 } | |
| 579 } | |
| 580 | |
| 581 /* If nothing has changed in the area where the blocks overlap, but | |
| 582 there are new blocks in the desired block, then adjust the start | |
| 583 point accordingly. */ | |
| 584 if (elt == stop_pos && stop_pos < Dynarr_length (ddb->runes)) | |
| 585 start_pos = stop_pos; | |
| 586 } | |
| 587 | |
| 588 if (start_pos >= 0) | |
| 589 { | |
| 590 if ((Dynarr_length (ddb->runes) != Dynarr_length (cdb->runes)) | |
| 591 || force) | |
| 592 { | |
| 593 stop_pos = Dynarr_length (ddb->runes); | |
| 594 } | |
| 595 else | |
| 596 { | |
| 597 /* If the lines have the same number of runes and we are not | |
| 598 forcing a full redraw because the display line has | |
| 599 changed position then we try and optimize how much of the | |
| 600 line we actually redraw by scanning backwards from the | |
| 601 end for the first changed rune. This optimization is | |
| 602 almost always triggered by face changes. */ | |
| 603 | |
| 604 int elt = Dynarr_length (ddb->runes) - 1; | |
| 605 | |
| 606 while (elt > start_pos) | |
| 607 { | |
| 608 if (!compare_runes (w, Dynarr_atp (cdb->runes, elt), | |
| 609 Dynarr_atp (ddb->runes, elt))) | |
| 610 break; | |
| 611 else | |
| 612 elt--; | |
| 613 } | |
| 614 stop_pos = elt + 1; | |
| 615 } | |
| 616 | |
| 617 redisplay_output_display_block (w, ddl, d_block, start_pos, | |
| 618 stop_pos, start_pixpos, | |
| 619 cursor_start, cursor_width, | |
| 620 cursor_height); | |
| 621 return 1; | |
| 622 } | |
| 623 | |
| 624 return 0; | |
| 625 } | |
| 626 | |
| 627 /***************************************************************************** | |
| 628 clear_left_border | |
| 629 | |
| 630 Clear the lefthand outside border. | |
| 631 ****************************************************************************/ | |
| 632 static void | |
| 633 clear_left_border (struct window *w, int y, int height) | |
| 634 { | |
| 635 struct frame *f = XFRAME (w->frame); | |
| 793 | 636 Lisp_Object window = wrap_window (w); |
| 428 | 637 |
| 638 redisplay_clear_region (window, DEFAULT_INDEX, | |
| 5090 | 639 FRAME_LEFT_INTERNAL_BORDER_START (f), y, |
| 640 FRAME_INTERNAL_BORDER_WIDTH (f), height); | |
| 428 | 641 } |
| 642 | |
| 643 /***************************************************************************** | |
| 644 clear_right_border | |
| 645 | |
| 646 Clear the righthand outside border. | |
| 647 ****************************************************************************/ | |
| 648 static void | |
| 649 clear_right_border (struct window *w, int y, int height) | |
| 650 { | |
| 651 struct frame *f = XFRAME (w->frame); | |
| 793 | 652 Lisp_Object window = wrap_window (w); |
| 428 | 653 |
| 654 redisplay_clear_region (window, DEFAULT_INDEX, | |
| 5090 | 655 FRAME_RIGHT_INTERNAL_BORDER_START (f), |
| 656 y, FRAME_INTERNAL_BORDER_WIDTH (f), height); | |
| 428 | 657 } |
| 658 | |
| 659 /***************************************************************************** | |
| 660 output_display_line | |
| 661 | |
| 662 Ensure that the contents of the given display line is correct | |
| 663 on-screen. The force_ parameters are used by redisplay_move_cursor | |
| 664 to correctly update cursor locations and only cursor locations. | |
| 665 ****************************************************************************/ | |
| 666 void | |
| 667 output_display_line (struct window *w, display_line_dynarr *cdla, | |
| 668 display_line_dynarr *ddla, int line, int force_start, | |
| 669 int force_end) | |
| 670 | |
| 671 { | |
| 672 struct frame *f = XFRAME (w->frame); | |
| 673 struct buffer *b = XBUFFER (w->buffer); | |
| 674 struct buffer *old_b = window_display_buffer (w); | |
| 675 struct display_line *cdl, *ddl; | |
| 676 display_block_dynarr *cdba, *ddba; | |
| 677 int start_pixpos, end_pixpos; | |
| 678 int cursor_start, cursor_width, cursor_height; | |
| 679 | |
| 680 int force = (force_start >= 0 || force_end >= 0); | |
| 681 int clear_border = 0; | |
| 682 int must_sync = 0; | |
| 683 | |
| 684 if (cdla && line < Dynarr_length (cdla)) | |
| 685 { | |
| 686 cdl = Dynarr_atp (cdla, line); | |
| 687 cdba = cdl->display_blocks; | |
| 688 } | |
| 689 else | |
| 690 { | |
| 691 cdl = NULL; | |
| 692 cdba = NULL; | |
| 693 } | |
| 694 | |
|
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diff
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|
695 /* The following will assert line < Dynarr_length (ddla) */ |
|
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Various cleanups for Dynarr code, from Unicode-internal ws
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parents:
4207
diff
changeset
|
696 ddl = Dynarr_atp (ddla, line); |
| 428 | 697 ddba = ddl->display_blocks; |
| 698 | |
| 699 if (force_start >= 0 && force_start >= ddl->bounds.left_out) | |
| 700 start_pixpos = force_start; | |
| 701 else | |
| 702 start_pixpos = ddl->bounds.left_out; | |
| 703 | |
| 704 if (force_end >= 0 && force_end < ddl->bounds.right_out) | |
| 705 end_pixpos = force_end; | |
| 706 else | |
| 707 end_pixpos = ddl->bounds.right_out; | |
| 708 | |
| 709 /* Get the cursor parameters. */ | |
| 710 if (ddl->cursor_elt != -1) | |
| 711 { | |
| 712 struct display_block *db; | |
| 713 | |
| 714 /* If the lines cursor parameter is not -1 then it indicates | |
| 4187 | 715 which rune in the TEXT block contains the cursor. This means |
| 716 that there must be at least one display block. The TEXT | |
| 717 block, if present, must always be the first display block. */ | |
| 428 | 718 assert (Dynarr_length (ddba) != 0); |
| 719 | |
| 4967 | 720 db = Dynarr_begin (ddba); |
| 428 | 721 assert (db->type == TEXT); |
| 722 | |
| 723 get_cursor_size_and_location (w, db, ddl->cursor_elt, &cursor_start, | |
| 724 &cursor_width, &cursor_height); | |
| 725 } | |
| 726 else | |
| 727 { | |
| 728 cursor_start = cursor_width = cursor_height = 0; | |
| 729 } | |
| 730 | |
| 731 /* The modeline should only have a single block and it had better be | |
| 732 a TEXT block. */ | |
| 733 if (ddl->modeline) | |
| 734 { | |
| 735 /* The shadow thickness check is necessary if only the sign of | |
| 4187 | 736 the size changed. */ |
| 428 | 737 if (cdba && !w->shadow_thickness_changed) |
| 738 { | |
| 739 must_sync |= compare_display_blocks (w, cdl, ddl, 0, 0, | |
| 740 start_pixpos, 0, 0, 0); | |
| 741 } | |
| 742 else | |
| 743 { | |
| 744 redisplay_output_display_block (w, ddl, 0, 0, -1, start_pixpos, | |
| 745 0, 0, 0); | |
| 746 must_sync = 1; | |
| 747 } | |
| 748 | |
| 749 if (must_sync) | |
| 750 clear_border = 1; | |
| 751 } | |
| 752 | |
| 753 while (!ddl->modeline && start_pixpos < end_pixpos) | |
| 754 { | |
| 755 int block; | |
| 756 int next_start_pixpos; | |
| 757 | |
| 758 block = get_next_display_block (ddl->bounds, ddba, start_pixpos, | |
| 759 &next_start_pixpos); | |
| 760 | |
| 761 /* If we didn't find a block then we should blank the area | |
| 4187 | 762 between start_pos and next_start if necessary. */ |
| 428 | 763 if (block == NO_BLOCK) |
| 764 { | |
| 765 /* We only erase those areas which were actually previously | |
| 4187 | 766 covered by a display block unless the window structure |
| 767 changed. In that case we clear all areas since the current | |
| 768 structures may actually represent a different buffer. */ | |
| 428 | 769 while (start_pixpos < next_start_pixpos) |
| 770 { | |
| 771 int block_end; | |
| 772 int old_block; | |
| 773 | |
| 774 if (cdba) | |
| 775 old_block = get_next_display_block (ddl->bounds, cdba, | |
| 776 start_pixpos, &block_end); | |
| 777 else | |
| 778 { | |
| 779 old_block = NO_BLOCK; | |
| 780 block_end = next_start_pixpos; | |
| 781 } | |
| 782 | |
| 783 if (!cdba || old_block != NO_BLOCK || b != old_b || | |
| 784 f->windows_structure_changed || | |
| 785 f->faces_changed || | |
| 786 force || | |
| 787 (cdl && (cdl->ypos != ddl->ypos || | |
| 788 cdl->ascent != ddl->ascent || | |
| 789 cdl->descent != ddl->descent || | |
| 790 cdl->top_clip != ddl->top_clip || | |
| 791 cdl->clip != ddl->clip))) | |
| 792 { | |
| 793 int x, y, width, height; | |
| 794 face_index findex; | |
| 795 | |
| 796 must_sync = 1; | |
| 797 x = start_pixpos; | |
| 798 y = DISPLAY_LINE_YPOS (ddl); | |
| 799 width = min (next_start_pixpos, block_end) - x; | |
| 800 height = DISPLAY_LINE_HEIGHT (ddl); | |
| 801 | |
| 802 if (x < ddl->bounds.left_in) | |
| 803 { | |
| 4187 | 804 findex = (ddl->left_margin_findex > DEFAULT_INDEX) ? |
| 434 | 805 ddl->left_margin_findex |
| 428 | 806 : get_builtin_face_cache_index (w, Vleft_margin_face); |
| 807 } | |
| 808 else if (x < ddl->bounds.right_in) | |
| 809 { | |
| 4187 | 810 findex = (ddl->default_findex >= DEFAULT_INDEX) ? |
| 811 ddl->default_findex | |
| 812 : DEFAULT_INDEX; | |
| 428 | 813 } |
| 814 else if (x < ddl->bounds.right_out) | |
| 815 { | |
| 4187 | 816 findex = (ddl->right_margin_findex > DEFAULT_INDEX) ? |
| 434 | 817 ddl->right_margin_findex |
| 428 | 818 : get_builtin_face_cache_index (w, Vright_margin_face); |
| 819 } | |
| 820 else | |
| 821 findex = (face_index) -1; | |
| 822 | |
| 823 if (findex != (face_index) -1) | |
| 824 { | |
| 793 | 825 Lisp_Object window = wrap_window (w); |
| 428 | 826 |
| 827 | |
| 828 /* Clear the empty area. */ | |
| 829 redisplay_clear_region (window, findex, x, y, width, height); | |
| 830 | |
| 831 /* Mark that we should clear the border. This is | |
| 832 necessary because italic fonts may leave | |
| 833 droppings in the border. */ | |
| 834 clear_border = 1; | |
| 835 } | |
| 836 } | |
| 837 | |
| 838 start_pixpos = min (next_start_pixpos, block_end); | |
| 839 } | |
| 840 } | |
| 841 else | |
| 842 { | |
| 843 struct display_block *cdb, *ddb; | |
| 844 int block_end; | |
| 845 int old_block; | |
| 846 | |
| 847 if (cdba) | |
| 848 old_block = get_next_display_block (ddl->bounds, cdba, | |
| 849 start_pixpos, &block_end); | |
| 850 else | |
| 851 old_block = NO_BLOCK; | |
| 852 | |
| 853 ddb = Dynarr_atp (ddba, block); | |
| 854 cdb = (old_block != NO_BLOCK ? Dynarr_atp (cdba, old_block) : 0); | |
| 855 | |
| 856 /* If there was formerly no block over the current | |
| 857 region or if it was a block of a different type, then | |
| 858 output the entire ddb. Otherwise, compare cdb and | |
| 859 ddb and output only the changed region. */ | |
| 434 | 860 if (!force && cdb && ddb->type == cdb->type |
| 428 | 861 /* If there was no buffer being display before the |
| 4187 | 862 compare anyway as we might be outputting a gutter. */ |
| 434 | 863 && |
| 428 | 864 (b == old_b || !old_b)) |
| 865 { | |
| 866 must_sync |= compare_display_blocks (w, cdl, ddl, old_block, | |
| 867 block, start_pixpos, | |
| 868 cursor_start, cursor_width, | |
| 869 cursor_height); | |
| 870 } | |
| 871 else | |
| 872 { | |
| 873 int elt; | |
| 874 int first_elt = 0; | |
| 875 int last_elt = -1; | |
| 876 | |
| 877 for (elt = 0; elt < Dynarr_length (ddb->runes); elt++) | |
| 878 { | |
| 879 struct rune *rb = Dynarr_atp (ddb->runes, elt); | |
| 880 | |
| 881 if (start_pixpos >= rb->xpos | |
| 882 && start_pixpos < rb->xpos + rb->width) | |
| 883 first_elt = elt; | |
| 884 | |
| 885 if (end_pixpos > rb->xpos | |
| 886 && end_pixpos <= rb->xpos + rb->width) | |
| 887 { | |
| 888 last_elt = elt + 1; | |
| 889 if (last_elt > Dynarr_length (ddb->runes)) | |
| 890 last_elt = Dynarr_length (ddb->runes); | |
| 891 break; | |
| 892 } | |
| 893 } | |
| 894 | |
| 895 must_sync = 1; | |
| 896 redisplay_output_display_block (w, ddl, block, first_elt, | |
| 897 last_elt, | |
| 898 start_pixpos, | |
| 899 cursor_start, cursor_width, | |
| 900 cursor_height); | |
| 901 } | |
| 434 | 902 |
| 428 | 903 start_pixpos = next_start_pixpos; |
| 904 } | |
| 905 } | |
| 906 | |
| 907 /* Clear the internal border if we are next to it and the window | |
| 908 structure or frame size has changed or if something caused | |
| 909 clear_border to be tripped. */ | |
| 910 /* #### Doing this on f->clear sucks but is necessary because of | |
| 911 window-local background values. */ | |
| 912 if (f->windows_structure_changed || f->faces_changed || clear_border | |
| 913 || f->clear) | |
| 914 { | |
| 915 int y = DISPLAY_LINE_YPOS (ddl); | |
| 916 int height = DISPLAY_LINE_HEIGHT (ddl); | |
| 917 | |
| 918 /* If we are in the gutter then we musn't clear the borders. */ | |
| 919 if (y >= WINDOW_TEXT_TOP (w) && (y + height) <= WINDOW_TEXT_BOTTOM (w)) | |
| 920 { | |
| 921 if (ddl->modeline) | |
| 922 { | |
| 923 y -= MODELINE_SHADOW_THICKNESS (w); | |
| 924 height += (2 * MODELINE_SHADOW_THICKNESS (w)); | |
| 925 } | |
| 434 | 926 |
| 428 | 927 if (window_is_leftmost (w)) |
| 928 clear_left_border (w, y, height); | |
| 929 if (window_is_rightmost (w)) | |
| 930 clear_right_border (w, y, height); | |
| 931 } | |
| 932 } | |
| 933 | |
| 934 if (cdla) | |
| 935 sync_display_line_structs (w, line, must_sync, cdla, ddla); | |
| 936 } | |
| 937 | |
| 938 /***************************************************************************** | |
| 939 redisplay_move_cursor | |
| 940 | |
| 941 For the given window W, move the cursor to NEW_POINT. Returns a | |
| 942 boolean indicating success or failure. | |
| 943 ****************************************************************************/ | |
| 944 | |
| 826 | 945 #define ADJ_CHARPOS (rb->charpos + dl->offset) |
| 428 | 946 #define ADJ_ENDPOS (rb->endpos + dl->offset) |
| 947 | |
| 948 int | |
| 665 | 949 redisplay_move_cursor (struct window *w, Charbpos new_point, int no_output_end) |
| 428 | 950 { |
| 951 struct frame *f = XFRAME (w->frame); | |
| 952 struct device *d = XDEVICE (f->device); | |
| 953 | |
| 954 display_line_dynarr *cla = window_display_lines (w, CURRENT_DISP); | |
| 955 struct display_line *dl; | |
| 956 struct display_block *db; | |
| 957 struct rune *rb; | |
| 958 int x = w->last_point_x[CURRENT_DISP]; | |
| 959 int y = w->last_point_y[CURRENT_DISP]; | |
| 960 | |
| 961 /* | |
| 962 * Bail if cursor_in_echo_area is non-zero and we're fiddling with | |
| 963 * the cursor in a non-active minibuffer window, since that is a | |
| 964 * special case that is handled elsewhere and this function need | |
| 965 * not handle it. Return 1 so the caller will assume we | |
| 966 * succeeded. | |
| 967 */ | |
| 968 if (cursor_in_echo_area && MINI_WINDOW_P (w) && | |
| 969 w != XWINDOW (FRAME_SELECTED_WINDOW (f))) | |
| 970 return 1; | |
| 971 | |
| 972 if (y < 0 || y >= Dynarr_length (cla)) | |
| 973 return 0; | |
| 974 | |
| 975 dl = Dynarr_atp (cla, y); | |
| 976 db = get_display_block_from_line (dl, TEXT); | |
| 977 | |
| 978 if (x < 0 || x >= Dynarr_length (db->runes)) | |
| 979 return 0; | |
| 980 | |
| 981 rb = Dynarr_atp (db->runes, x); | |
| 982 | |
| 983 if (rb->cursor_type == CURSOR_OFF) | |
| 984 return 0; | |
| 826 | 985 else if (ADJ_CHARPOS == new_point |
| 986 || (ADJ_ENDPOS && (new_point >= ADJ_CHARPOS) | |
| 428 | 987 && (new_point <= ADJ_ENDPOS))) |
| 988 { | |
| 989 w->last_point_x[CURRENT_DISP] = x; | |
| 990 w->last_point_y[CURRENT_DISP] = y; | |
| 826 | 991 Fset_marker (w->last_point[CURRENT_DISP], make_int (ADJ_CHARPOS), |
| 428 | 992 w->buffer); |
| 993 dl->cursor_elt = x; | |
| 994 return 1; | |
| 995 } | |
| 996 else | |
| 997 { | |
| 442 | 998 { |
| 999 MAYBE_DEVMETH (d, frame_output_begin, (f)); | |
| 1000 MAYBE_DEVMETH (d, window_output_begin, (w)); | |
| 1001 } | |
| 1002 rb->cursor_type = CURSOR_OFF; | |
| 428 | 1003 dl->cursor_elt = -1; |
| 1004 output_display_line (w, 0, cla, y, rb->xpos, rb->xpos + rb->width); | |
| 1005 } | |
| 1006 | |
| 1007 w->last_point_x[CURRENT_DISP] = -1; | |
| 1008 w->last_point_y[CURRENT_DISP] = -1; | |
| 1009 Fset_marker (w->last_point[CURRENT_DISP], Qnil, w->buffer); | |
| 1010 | |
| 1011 /* If this isn't the selected frame, then erasing the old cursor is | |
| 1012 all we actually had to do. */ | |
| 1013 if (w != XWINDOW (FRAME_SELECTED_WINDOW (device_selected_frame (d)))) | |
| 1014 { | |
| 1015 if (!no_output_end) | |
| 442 | 1016 { |
| 1017 MAYBE_DEVMETH (d, window_output_end, (w)); | |
| 1018 MAYBE_DEVMETH (d, frame_output_end, (f)); | |
| 1019 } | |
| 428 | 1020 |
| 1021 return 1; | |
| 1022 } | |
| 1023 | |
| 1024 /* This should only occur in the minibuffer. */ | |
| 1025 if (new_point == 0) | |
| 1026 { | |
| 1027 w->last_point_x[CURRENT_DISP] = 0; | |
| 1028 w->last_point_y[CURRENT_DISP] = y; | |
| 1029 Fset_marker (w->last_point[CURRENT_DISP], Qzero, w->buffer); | |
| 1030 | |
| 4967 | 1031 rb = Dynarr_begin (db->runes); |
| 428 | 1032 rb->cursor_type = CURSOR_ON; |
| 1033 dl->cursor_elt = 0; | |
| 1034 | |
| 1035 output_display_line (w, 0, cla, y, rb->xpos, rb->xpos + rb->width); | |
| 1036 | |
| 1037 if (!no_output_end) | |
| 442 | 1038 { |
| 1039 MAYBE_DEVMETH (d, window_output_end, (w)); | |
| 1040 MAYBE_DEVMETH (d, frame_output_end, (f)); | |
| 1041 } | |
| 428 | 1042 return 1; |
| 1043 } | |
| 1044 else | |
| 1045 { | |
| 1046 int cur_rb = 0; | |
| 1047 int first = 0; | |
| 1048 int cur_dl, up; | |
| 1049 | |
| 826 | 1050 if (ADJ_CHARPOS < new_point) |
| 428 | 1051 { |
| 1052 up = 1; | |
| 1053 cur_rb = x + 1; | |
| 1054 cur_dl = y; | |
| 1055 } | |
| 665 | 1056 else /* (rb->charbpos + dl->offset) > new_point */ |
| 428 | 1057 { |
| 1058 up = 0; | |
| 1059 | |
| 1060 if (!x) | |
| 1061 { | |
| 1062 cur_dl = y - 1; | |
| 1063 first = 0; | |
| 1064 } | |
| 1065 else | |
| 1066 { | |
| 1067 cur_rb = x - 1; | |
| 1068 cur_dl = y; | |
| 1069 first = 1; | |
| 1070 } | |
| 1071 } | |
| 1072 | |
| 434 | 1073 while (up ? (cur_dl < Dynarr_length (cla)) : (cur_dl >= 0)) |
| 428 | 1074 { |
| 1075 dl = Dynarr_atp (cla, cur_dl); | |
| 1076 db = get_display_block_from_line (dl, TEXT); | |
| 1077 | |
| 1078 if (!up && !first) | |
| 1079 cur_rb = Dynarr_length (db->runes) - 1; | |
| 1080 | |
| 1081 while ((!scroll_on_clipped_lines || !dl->clip) && | |
| 1082 (up ? (cur_rb < Dynarr_length (db->runes)) : (cur_rb >= 0))) | |
| 1083 { | |
| 1084 rb = Dynarr_atp (db->runes, cur_rb); | |
| 1085 | |
| 1086 if (rb->cursor_type != IGNORE_CURSOR | |
| 1087 && rb->cursor_type != NO_CURSOR && | |
| 826 | 1088 (ADJ_CHARPOS == new_point |
| 1089 || (ADJ_ENDPOS && (new_point >= ADJ_CHARPOS) | |
| 1090 && (new_point <= ADJ_CHARPOS)))) | |
| 428 | 1091 { |
| 1092 rb->cursor_type = CURSOR_ON; | |
| 1093 dl->cursor_elt = cur_rb; | |
| 1094 | |
| 1095 | |
| 1096 output_display_line (w, 0, cla, cur_dl, rb->xpos, | |
| 1097 rb->xpos + rb->width); | |
| 1098 | |
| 1099 w->last_point_x[CURRENT_DISP] = cur_rb; | |
| 1100 w->last_point_y[CURRENT_DISP] = cur_dl; | |
| 1101 Fset_marker (w->last_point[CURRENT_DISP], | |
| 826 | 1102 make_int (ADJ_CHARPOS), w->buffer); |
| 428 | 1103 |
| 1104 if (!no_output_end) | |
| 442 | 1105 { |
| 1106 MAYBE_DEVMETH (d, window_output_end, (w)); | |
| 1107 MAYBE_DEVMETH (d, frame_output_end, (f)); | |
| 1108 } | |
| 428 | 1109 return 1; |
| 1110 } | |
| 1111 | |
| 1112 (up ? cur_rb++ : cur_rb--); | |
| 1113 } | |
| 1114 | |
| 1115 (up ? (cur_rb = 0) : (first = 0)); | |
| 1116 (up ? cur_dl++ : cur_dl--); | |
| 1117 } | |
| 1118 } | |
| 1119 | |
| 1120 if (!no_output_end) | |
| 442 | 1121 { |
| 1122 MAYBE_DEVMETH (d, window_output_end, (w)); | |
| 1123 MAYBE_DEVMETH (d, frame_output_end, (f)); | |
| 1124 } | |
| 428 | 1125 return 0; |
| 1126 } | |
| 826 | 1127 #undef ADJ_CHARPOS |
| 428 | 1128 #undef ADJ_ENDPOS |
| 1129 | |
| 1130 /***************************************************************************** | |
| 1131 redraw_cursor_in_window | |
| 1132 | |
| 1133 For the given window W, redraw the cursor if it is contained within | |
| 1134 the window. | |
| 1135 ****************************************************************************/ | |
| 1136 static void | |
| 1137 redraw_cursor_in_window (struct window *w, int run_end_begin_meths) | |
| 1138 { | |
| 1139 struct frame *f = XFRAME (w->frame); | |
| 1140 struct device *d = XDEVICE (f->device); | |
| 1141 | |
| 1142 display_line_dynarr *dla = window_display_lines (w, CURRENT_DISP); | |
| 1143 struct display_line *dl; | |
| 1144 struct display_block *db; | |
| 1145 struct rune *rb; | |
| 1146 | |
| 1147 int x = w->last_point_x[CURRENT_DISP]; | |
| 1148 int y = w->last_point_y[CURRENT_DISP]; | |
| 1149 | |
| 1150 if (cursor_in_echo_area && MINI_WINDOW_P (w) && | |
| 1151 !echo_area_active (f) && minibuf_level == 0) | |
| 1152 { | |
| 1153 MAYBE_DEVMETH (d, set_final_cursor_coords, (f, w->pixel_top, 0)); | |
| 1154 } | |
| 1155 | |
| 1156 if (y < 0 || y >= Dynarr_length (dla)) | |
| 1157 return; | |
| 1158 | |
| 1159 if (MINI_WINDOW_P (w) && f != device_selected_frame (d) && | |
| 1160 !is_surrogate_for_selected_frame (f)) | |
| 1161 return; | |
| 1162 | |
| 1163 dl = Dynarr_atp (dla, y); | |
| 1164 db = get_display_block_from_line (dl, TEXT); | |
| 1165 | |
| 1166 if (x < 0 || x >= Dynarr_length (db->runes)) | |
| 1167 return; | |
| 1168 | |
| 1169 rb = Dynarr_atp (db->runes, x); | |
| 1170 | |
| 1171 /* Don't call the output routine if the block isn't actually the | |
| 1172 cursor. */ | |
| 1173 if (rb->cursor_type == CURSOR_ON) | |
| 1174 { | |
| 1175 MAYBE_DEVMETH (d, set_final_cursor_coords, | |
| 1176 (f, dl->ypos - 1, rb->xpos)); | |
| 1177 | |
| 1178 if (run_end_begin_meths) | |
| 442 | 1179 { |
| 1180 MAYBE_DEVMETH (d, frame_output_begin, (f)); | |
| 1181 MAYBE_DEVMETH (d, window_output_begin, (w)); | |
| 1182 } | |
| 428 | 1183 |
| 1184 output_display_line (w, 0, dla, y, rb->xpos, rb->xpos + rb->width); | |
| 1185 | |
| 1186 if (run_end_begin_meths) | |
| 442 | 1187 { |
| 1188 MAYBE_DEVMETH (d, window_output_end, (w)); | |
| 1189 MAYBE_DEVMETH (d, frame_output_end, (f)); | |
| 1190 } | |
| 428 | 1191 } |
| 1192 } | |
| 1193 | |
| 1194 /***************************************************************************** | |
| 1195 redisplay_redraw_cursor | |
| 1196 | |
| 1197 For the given frame F, redraw the cursor on the selected window. | |
| 1198 This is used to update the cursor after focus changes. | |
| 1199 ****************************************************************************/ | |
| 1200 void | |
| 1201 redisplay_redraw_cursor (struct frame *f, int run_end_begin_meths) | |
| 1202 { | |
| 1203 Lisp_Object window; | |
| 1204 | |
| 1205 if (!cursor_in_echo_area) | |
| 1206 window = FRAME_SELECTED_WINDOW (f); | |
| 1207 else if (FRAME_HAS_MINIBUF_P (f)) | |
| 1208 window = FRAME_MINIBUF_WINDOW (f); | |
| 1209 else | |
| 1210 return; | |
| 1211 | |
| 1212 redraw_cursor_in_window (XWINDOW (window), run_end_begin_meths); | |
| 1213 } | |
| 1214 | |
| 1215 /**************************************************************************** | |
| 1216 redisplay_output_display_block | |
| 1217 | |
| 1218 Given a display line, a block number for that start line, output all | |
| 1219 runes between start and end in the specified display block. | |
| 1220 ****************************************************************************/ | |
| 1221 static void | |
| 1222 redisplay_output_display_block (struct window *w, struct display_line *dl, int block, | |
| 1223 int start, int end, int start_pixpos, int cursor_start, | |
| 1224 int cursor_width, int cursor_height) | |
| 1225 { | |
| 1226 struct frame *f = XFRAME (w->frame); | |
| 1227 struct device *d = XDEVICE (f->device); | |
| 442 | 1228 /* Temporarily disabled until generalization is done. */ |
| 1229 #if 0 | |
| 428 | 1230 struct display_block *db = Dynarr_atp (dl->display_blocks, block); |
| 1231 rune_dynarr *rba = db->runes; | |
| 1232 struct rune *rb; | |
| 1233 int xpos, width; | |
| 1234 rb = Dynarr_atp (rba, start); | |
| 1235 | |
| 1236 if (!rb) | |
| 1237 /* Nothing to do so don't do anything. */ | |
| 1238 return; | |
| 1239 | |
| 1240 xpos = max (start_pixpos, rb->xpos); | |
| 1241 | |
| 1242 if (end < 0) | |
| 1243 end = Dynarr_length (rba); | |
| 1244 | |
| 1245 rb = Dynarr_atp (rba, end - 1); | |
| 1246 width = rb->xpos + rb->width - xpos; | |
| 442 | 1247 #endif |
| 428 | 1248 /* now actually output the block. */ |
| 1249 DEVMETH (d, output_display_block, (w, dl, block, start, | |
| 1250 end, start_pixpos, | |
| 1251 cursor_start, cursor_width, | |
| 1252 cursor_height)); | |
| 1253 } | |
| 1254 | |
| 1255 /**************************************************************************** | |
| 1256 redisplay_unmap_subwindows | |
| 1257 | |
| 1258 Remove subwindows from the area in the box defined by the given | |
| 1259 parameters. | |
| 1260 ****************************************************************************/ | |
| 448 | 1261 static void |
| 1262 redisplay_unmap_subwindows (struct frame* f, int x, int y, int width, int height, | |
| 1263 Lisp_Object ignored_window) | |
| 428 | 1264 { |
| 442 | 1265 Lisp_Object rest; |
| 428 | 1266 |
| 442 | 1267 LIST_LOOP (rest, XWEAK_LIST_LIST (FRAME_SUBWINDOW_CACHE (f))) |
| 1268 { | |
| 1269 Lisp_Image_Instance *ii = XIMAGE_INSTANCE (XCAR (rest)); | |
| 1270 if (IMAGE_INSTANCE_SUBWINDOW_DISPLAYEDP (ii) | |
| 428 | 1271 && |
| 442 | 1272 IMAGE_INSTANCE_DISPLAY_X (ii) |
| 1273 + IMAGE_INSTANCE_DISPLAY_WIDTH (ii) > x | |
| 428 | 1274 && |
| 442 | 1275 IMAGE_INSTANCE_DISPLAY_X (ii) < x + width |
| 1276 && | |
| 1277 IMAGE_INSTANCE_DISPLAY_Y (ii) | |
| 1278 + IMAGE_INSTANCE_DISPLAY_HEIGHT (ii) > y | |
| 434 | 1279 && |
| 442 | 1280 IMAGE_INSTANCE_DISPLAY_Y (ii) < y + height |
| 1281 && | |
| 1282 !EQ (XCAR (rest), ignored_window)) | |
| 428 | 1283 { |
| 442 | 1284 unmap_subwindow (XCAR (rest)); |
| 428 | 1285 } |
| 1286 } | |
| 1287 } | |
| 1288 | |
| 1289 /**************************************************************************** | |
| 1290 redisplay_unmap_subwindows_maybe | |
| 1291 | |
| 1292 Potentially subwindows from the area in the box defined by the given | |
| 1293 parameters. | |
| 1294 ****************************************************************************/ | |
| 1279 | 1295 void |
| 1296 redisplay_unmap_subwindows_maybe (struct frame *f, int x, int y, int width, | |
| 1297 int height) | |
| 428 | 1298 { |
| 442 | 1299 if (!NILP (XWEAK_LIST_LIST (FRAME_SUBWINDOW_CACHE (f)))) |
| 428 | 1300 { |
| 1301 redisplay_unmap_subwindows (f, x, y, width, height, Qnil); | |
| 1302 } | |
| 1303 } | |
| 1304 | |
| 1279 | 1305 static void |
| 1306 redisplay_unmap_subwindows_except_us (struct frame *f, int x, int y, int width, | |
| 1307 int height, Lisp_Object subwindow) | |
| 428 | 1308 { |
| 442 | 1309 if (!NILP (XWEAK_LIST_LIST (FRAME_SUBWINDOW_CACHE (f)))) |
| 428 | 1310 { |
| 1311 redisplay_unmap_subwindows (f, x, y, width, height, subwindow); | |
| 1312 } | |
| 1313 } | |
| 1314 | |
| 1315 /**************************************************************************** | |
| 1316 redisplay_output_subwindow | |
| 1317 | |
| 1318 output a subwindow. This code borrows heavily from the pixmap stuff, | |
| 1319 although is much simpler not needing to account for partial | |
| 1320 pixmaps, backgrounds etc. | |
| 1321 ****************************************************************************/ | |
| 1322 void | |
| 434 | 1323 redisplay_output_subwindow (struct window *w, |
| 428 | 1324 Lisp_Object image_instance, |
| 1325 struct display_box* db, struct display_glyph_area* dga, | |
| 2286 | 1326 face_index findex, int UNUSED (cursor_start), |
| 1327 int UNUSED (cursor_width), | |
| 1328 int UNUSED (cursor_height)) | |
| 428 | 1329 { |
| 440 | 1330 Lisp_Image_Instance *p = XIMAGE_INSTANCE (image_instance); |
| 428 | 1331 Lisp_Object window; |
| 1332 struct display_glyph_area sdga; | |
| 1333 | |
| 442 | 1334 dga->height = IMAGE_INSTANCE_HEIGHT (p); |
| 1335 dga->width = IMAGE_INSTANCE_WIDTH (p); | |
| 1336 | |
| 1337 /* The first thing we are going to do is update the display | |
| 1338 characteristics of the subwindow. This also clears the dirty | |
| 1339 flags as a side effect. */ | |
| 1340 redisplay_subwindow (image_instance); | |
| 428 | 1341 |
| 1342 /* This makes the glyph area fit into the display area. */ | |
| 1343 if (!redisplay_normalize_glyph_area (db, dga)) | |
| 1344 return; | |
| 1345 | |
| 793 | 1346 window = wrap_window (w); |
| 428 | 1347 |
| 1348 /* Clear the area the subwindow is going into. */ | |
| 1349 redisplay_clear_clipped_region (window, findex, | |
| 1350 db, dga, 0, image_instance); | |
| 1351 | |
| 1352 /* This shrinks the display box to exactly enclose the glyph | |
| 1353 area. */ | |
| 1354 redisplay_normalize_display_box (db, dga); | |
| 1355 | |
| 1356 /* if we can't view the whole window we can't view any of it. We | |
| 1357 have to be careful here since we may be being asked to display | |
| 1358 part of a subwindow, the rest of which is on-screen as well. We | |
| 1359 need to allow this case and map the entire subwindow. We also | |
| 1360 need to be careful since the subwindow could be outside the | |
| 1361 window in the gutter or modeline - we also need to allow these | |
| 1362 cases.*/ | |
| 1363 sdga.xoffset = -dga->xoffset; | |
| 1364 sdga.yoffset = -dga->yoffset; | |
| 442 | 1365 sdga.height = IMAGE_INSTANCE_HEIGHT (p); |
| 1366 sdga.width = IMAGE_INSTANCE_WIDTH (p); | |
| 434 | 1367 |
| 446 | 1368 if (redisplay_display_boxes_in_window_p (w, db, &sdga) == 0 |
| 1369 || | |
| 1370 /* We only want to do full subwindow display for windows that | |
| 1371 are completely in the gutter, otherwise we must clip to be | |
| 1372 safe. */ | |
| 1373 display_boxes_in_gutter_p (XFRAME (w->frame), db, &sdga) <= 0) | |
| 428 | 1374 { |
| 1375 map_subwindow (image_instance, db->xpos, db->ypos, dga); | |
| 1376 } | |
| 1377 else | |
| 1378 { | |
| 1379 sdga.xoffset = sdga.yoffset = 0; | |
| 434 | 1380 map_subwindow (image_instance, db->xpos - dga->xoffset, |
| 428 | 1381 db->ypos - dga->yoffset, &sdga); |
| 1382 } | |
| 1383 } | |
| 1384 | |
| 1385 /**************************************************************************** | |
| 1386 redisplay_output_layout | |
| 1387 | |
| 1388 Output a widget hierarchy. This can safely call itself recursively. | |
| 442 | 1389 |
| 1390 The complexity of outputting layouts is deciding whether to do it or | |
| 1391 not. Consider a layout enclosing some text, the text changes and is | |
| 1392 marked as dirty, but the enclosing layout has not been marked as | |
| 1393 dirty so no updates occur and the text will potentially be truncated. | |
| 1394 Alternatively we hold a back pointer in the image instance to the | |
| 1395 parent and mark the parent as dirty. But the layout code assumes that | |
| 1396 if the layout is dirty then the whole layout should be redisplayed, | |
| 1397 so we then get lots of flashing even though only the text has changed | |
| 1398 size. Of course if the text shrinks in size then we do actually need | |
| 1399 to redisplay the layout to repaint the exposed area. So what happens | |
| 1400 if we make a non-structural change like changing color? Either we | |
| 1401 redisplay everything, or we redisplay nothing. These are exactly the | |
| 1402 issues lwlib has to grapple with. We really need to know what has | |
| 1403 actually changed and make a layout decision based on that. We also | |
| 1404 really need to know what has changed so that we can only make the | |
| 1405 necessary changes in update_subwindow. This has all now been | |
| 1406 implemented, Viva la revolution! | |
| 428 | 1407 ****************************************************************************/ |
| 1408 void | |
| 442 | 1409 redisplay_output_layout (Lisp_Object domain, |
| 428 | 1410 Lisp_Object image_instance, |
| 1411 struct display_box* db, struct display_glyph_area* dga, | |
| 2286 | 1412 face_index findex, int UNUSED (cursor_start), |
| 1413 int UNUSED (cursor_width), int UNUSED (cursor_height)) | |
| 428 | 1414 { |
| 440 | 1415 Lisp_Image_Instance *p = XIMAGE_INSTANCE (image_instance); |
| 442 | 1416 Lisp_Object rest, window = DOMAIN_WINDOW (domain); |
| 3479 | 1417 Ichar_dynarr *buf; |
| 442 | 1418 struct window *w = XWINDOW (window); |
| 1419 struct device *d = DOMAIN_XDEVICE (domain); | |
| 428 | 1420 int layout_height, layout_width; |
| 1421 | |
| 442 | 1422 layout_height = glyph_height (image_instance, domain); |
| 1423 layout_width = glyph_width (image_instance, domain); | |
| 428 | 1424 |
| 1425 dga->height = layout_height; | |
| 1426 dga->width = layout_width; | |
| 442 | 1427 #ifdef DEBUG_WIDGET_OUTPUT |
| 1428 printf ("outputing layout glyph %p\n", p); | |
| 1429 #endif | |
| 428 | 1430 /* This makes the glyph area fit into the display area. */ |
| 1431 if (!redisplay_normalize_glyph_area (db, dga)) | |
| 1432 return; | |
| 1433 | |
| 3479 | 1434 buf = Dynarr_new (Ichar); |
| 1435 | |
| 428 | 1436 /* Highly dodgy optimization. We want to only output the whole |
| 1437 layout if we really have to. */ | |
| 442 | 1438 if (!IMAGE_INSTANCE_OPTIMIZE_OUTPUT (p) |
| 1439 || IMAGE_INSTANCE_LAYOUT_CHANGED (p) | |
| 1440 || IMAGE_INSTANCE_WIDGET_FACE_CHANGED (p) | |
| 1441 || IMAGE_INSTANCE_SIZE_CHANGED (p) | |
| 1442 || IMAGE_INSTANCE_WIDGET_ITEMS_CHANGED (p)) | |
| 428 | 1443 { |
| 1444 /* First clear the area we are drawing into. This is the easiest | |
| 1445 thing to do since we have many gaps that we have to make sure are | |
| 1446 filled in. */ | |
| 1447 redisplay_clear_clipped_region (window, findex, db, dga, 1, Qnil); | |
| 434 | 1448 |
| 428 | 1449 /* Output a border if required */ |
| 1450 if (!NILP (IMAGE_INSTANCE_LAYOUT_BORDER (p))) | |
| 1451 { | |
| 1452 int edges = 0; | |
| 1453 enum edge_style style; | |
| 1454 int ypos = db->ypos; | |
| 863 | 1455 int xpos = db->xpos; |
| 428 | 1456 int height = dga->height; |
| 863 | 1457 int width = dga->width; |
| 434 | 1458 |
| 863 | 1459 /* The bevel_area routines always draw in from the specified |
| 1460 area so there is no need to adjust the displayed area to | |
| 1461 make sure that the lines are visible. */ | |
| 4187 | 1462 if (dga->xoffset >= 0) |
| 428 | 1463 edges |= EDGE_LEFT; |
| 4187 | 1464 if (dga->width - dga->xoffset == layout_width) |
| 428 | 1465 edges |= EDGE_RIGHT; |
| 4187 | 1466 if (dga->yoffset >= 0) |
| 428 | 1467 edges |= EDGE_TOP; |
| 1468 if (dga->height - dga->yoffset == layout_height) | |
| 1469 edges |= EDGE_BOTTOM; | |
| 4187 | 1470 |
| 428 | 1471 if (EQ (IMAGE_INSTANCE_LAYOUT_BORDER (p), Qetched_in)) |
| 1472 style = EDGE_ETCHED_IN; | |
| 1473 else if (EQ (IMAGE_INSTANCE_LAYOUT_BORDER (p), Qetched_out)) | |
| 1474 style = EDGE_ETCHED_OUT; | |
| 1475 else if (EQ (IMAGE_INSTANCE_LAYOUT_BORDER (p), Qbevel_in)) | |
| 1476 style = EDGE_BEVEL_IN; | |
| 1477 else if (INTP (IMAGE_INSTANCE_LAYOUT_BORDER (p))) | |
| 1478 { | |
| 1479 style = EDGE_ETCHED_IN; | |
| 1480 if (edges & EDGE_TOP) | |
| 1481 { | |
| 1482 ypos += XINT (IMAGE_INSTANCE_LAYOUT_BORDER (p)); | |
| 1483 height -= XINT (IMAGE_INSTANCE_LAYOUT_BORDER (p)); | |
| 1484 } | |
| 1485 } | |
| 1486 else | |
| 1487 style = EDGE_BEVEL_OUT; | |
| 1488 | |
| 434 | 1489 MAYBE_DEVMETH (d, bevel_area, |
| 863 | 1490 (w, findex, xpos, ypos, width, height, |
| 1491 DEFAULT_WIDGET_SHADOW_WIDTH, edges, style)); | |
| 428 | 1492 } |
| 1493 } | |
| 434 | 1494 |
| 428 | 1495 /* This shrinks the display box to exactly enclose the glyph |
| 1496 area. */ | |
| 1497 redisplay_normalize_display_box (db, dga); | |
| 1498 | |
| 1499 /* Flip through the widgets in the layout displaying as necessary */ | |
| 1500 LIST_LOOP (rest, IMAGE_INSTANCE_LAYOUT_CHILDREN (p)) | |
| 1501 { | |
| 442 | 1502 Lisp_Object child = glyph_image_instance (XCAR (rest), image_instance, |
| 793 | 1503 ERROR_ME_DEBUG_WARN, 1); |
| 428 | 1504 |
| 1505 struct display_box cdb; | |
| 1506 /* For losing HP-UX */ | |
| 1507 cdb.xpos = db->xpos; | |
| 1508 cdb.ypos = db->ypos; | |
| 1509 cdb.width = db->width; | |
| 1510 cdb.height = db->height; | |
| 1511 | |
| 1512 /* First determine if the image is visible at all */ | |
| 1513 if (IMAGE_INSTANCEP (child)) | |
| 1514 { | |
| 440 | 1515 Lisp_Image_Instance* childii = XIMAGE_INSTANCE (child); |
| 442 | 1516 |
| 428 | 1517 /* The enclosing layout offsets are +ve at this point */ |
| 1518 struct display_glyph_area cdga; | |
| 1519 cdga.xoffset = IMAGE_INSTANCE_XOFFSET (childii) - dga->xoffset; | |
| 1520 cdga.yoffset = IMAGE_INSTANCE_YOFFSET (childii) - dga->yoffset; | |
| 442 | 1521 cdga.width = glyph_width (child, image_instance); |
| 1522 cdga.height = glyph_height (child, image_instance); | |
| 1523 | |
| 1524 IMAGE_INSTANCE_OPTIMIZE_OUTPUT (childii) = | |
| 1525 IMAGE_INSTANCE_OPTIMIZE_OUTPUT (p); | |
| 428 | 1526 |
| 4207 | 1527 /* Although normalization is done by the output routines we have to |
| 1528 do it here so that they don't try and clear all of db. This is | |
| 1529 true below also. */ | |
| 428 | 1530 if (redisplay_normalize_glyph_area (&cdb, &cdga)) |
| 1531 { | |
| 1532 redisplay_normalize_display_box (&cdb, &cdga); | |
| 4207 | 1533 /* Since the display boxes will now be totally in the window if |
| 1534 they are visible at all we can now check this easily. */ | |
| 428 | 1535 if (cdb.xpos < db->xpos || cdb.ypos < db->ypos |
| 1536 || cdb.xpos + cdb.width > db->xpos + db->width | |
| 1537 || cdb.ypos + cdb.height > db->ypos + db->height) | |
| 1538 continue; | |
| 4207 | 1539 /* We have to invert the offset here as normalization will have |
| 1540 made them positive which the output routines will treat as a | |
| 1541 truly +ve offset. */ | |
| 428 | 1542 cdga.xoffset = -cdga.xoffset; |
| 1543 cdga.yoffset = -cdga.yoffset; | |
| 1544 | |
| 1545 switch (IMAGE_INSTANCE_TYPE (childii)) | |
| 1546 { | |
| 1547 case IMAGE_TEXT: | |
| 1548 { | |
| 1549 /* #### This is well hacked and could use some | |
| 1550 generalisation.*/ | |
| 434 | 1551 if (redisplay_normalize_glyph_area (&cdb, &cdga) |
| 1552 && | |
| 442 | 1553 (!IMAGE_INSTANCE_OPTIMIZE_OUTPUT (childii) || |
| 1554 IMAGE_INSTANCE_DIRTYP (childii))) | |
| 428 | 1555 { |
| 1556 struct display_line dl; /* this is fake */ | |
| 1557 Lisp_Object string = | |
| 1558 IMAGE_INSTANCE_TEXT_STRING (childii); | |
| 442 | 1559 unsigned char charsets[NUM_LEADING_BYTES]; |
| 4207 | 1560 struct face_cachel *cachel |
| 1561 = WINDOW_FACE_CACHEL (w, findex); | |
| 1562 | |
| 1563 DISPLAY_LINE_INIT (dl); | |
| 442 | 1564 |
| 867 | 1565 find_charsets_in_ibyte_string (charsets, |
| 4207 | 1566 XSTRING_DATA (string), |
| 1567 XSTRING_LENGTH (string)); | |
| 442 | 1568 ensure_face_cachel_complete (cachel, window, charsets); |
| 1569 | |
| 867 | 1570 convert_ibyte_string_into_ichar_dynarr |
| 4207 | 1571 (XSTRING_DATA (string), XSTRING_LENGTH (string), |
| 1572 buf); | |
| 434 | 1573 |
| 428 | 1574 redisplay_normalize_display_box (&cdb, &cdga); |
| 1575 /* Offsets are now +ve again so be careful | |
| 1576 when fixing up the display line. */ | |
| 1577 /* Munge boxes into display lines. */ | |
| 1578 dl.ypos = (cdb.ypos - cdga.yoffset) | |
| 442 | 1579 + glyph_ascent (child, image_instance); |
| 1580 dl.ascent = glyph_ascent (child, image_instance); | |
| 1581 dl.descent = glyph_descent (child, image_instance); | |
| 428 | 1582 dl.top_clip = cdga.yoffset; |
| 4207 | 1583 dl.clip = (dl.ypos + dl.descent) |
| 1584 - (cdb.ypos + cdb.height); | |
| 428 | 1585 /* output_string doesn't understand offsets in |
| 1586 the same way as other routines - we have to | |
| 1587 add the offset to the width so that we | |
| 1588 output the full string. */ | |
| 4207 | 1589 MAYBE_DEVMETH (d, output_string, |
| 1590 (w, &dl, buf, cdb.xpos, | |
| 1591 cdga.xoffset, cdb.xpos, | |
| 1592 cdga.width + cdga.xoffset, | |
| 1593 findex, 0, 0, 0, 0)); | |
| 428 | 1594 Dynarr_reset (buf); |
| 1595 } | |
| 1596 } | |
| 1597 break; | |
| 434 | 1598 |
| 428 | 1599 case IMAGE_MONO_PIXMAP: |
| 1600 case IMAGE_COLOR_PIXMAP: | |
| 442 | 1601 if (!IMAGE_INSTANCE_OPTIMIZE_OUTPUT (childii) |
| 1602 || IMAGE_INSTANCE_DIRTYP (childii)) | |
| 428 | 1603 redisplay_output_pixmap (w, child, &cdb, &cdga, findex, |
| 1604 0, 0, 0, 0); | |
| 1605 break; | |
| 434 | 1606 |
| 428 | 1607 case IMAGE_WIDGET: |
| 442 | 1608 if (EQ (IMAGE_INSTANCE_WIDGET_TYPE (childii), Qlayout)) |
| 1609 { | |
| 1610 redisplay_output_layout (image_instance, child, &cdb, &cdga, findex, | |
| 1611 0, 0, 0); | |
| 1612 break; | |
| 1613 } | |
| 428 | 1614 case IMAGE_SUBWINDOW: |
| 442 | 1615 if (!IMAGE_INSTANCE_OPTIMIZE_OUTPUT (childii) || |
| 1616 IMAGE_INSTANCE_DIRTYP (childii)) | |
| 428 | 1617 redisplay_output_subwindow (w, child, &cdb, &cdga, findex, |
| 1618 0, 0, 0); | |
| 1619 break; | |
| 434 | 1620 |
| 428 | 1621 case IMAGE_NOTHING: |
| 1622 /* nothing is as nothing does */ | |
| 1623 break; | |
| 434 | 1624 |
| 428 | 1625 case IMAGE_POINTER: |
| 1626 default: | |
| 2500 | 1627 ABORT (); |
| 428 | 1628 } |
| 1629 } | |
| 442 | 1630 IMAGE_INSTANCE_OPTIMIZE_OUTPUT (childii) = 0; |
| 428 | 1631 } |
| 1632 } | |
| 442 | 1633 |
| 1634 /* Update any display properties. I'm not sure whether this actually | |
| 1635 does anything for layouts except clear the changed flags. */ | |
| 1636 redisplay_subwindow (image_instance); | |
| 1637 | |
| 428 | 1638 Dynarr_free (buf); |
| 1639 } | |
| 1640 | |
| 1641 /**************************************************************************** | |
| 1642 redisplay_output_pixmap | |
| 1643 | |
| 1644 | |
| 1645 output a pixmap. | |
| 1646 ****************************************************************************/ | |
| 1647 void | |
| 434 | 1648 redisplay_output_pixmap (struct window *w, |
| 428 | 1649 Lisp_Object image_instance, |
| 1650 struct display_box* db, struct display_glyph_area* dga, | |
| 1651 face_index findex, int cursor_start, int cursor_width, | |
| 1652 int cursor_height, int offset_bitmap) | |
| 1653 { | |
| 1654 struct frame *f = XFRAME (w->frame); | |
| 1655 struct device *d = XDEVICE (f->device); | |
| 440 | 1656 Lisp_Image_Instance *p = XIMAGE_INSTANCE (image_instance); |
| 793 | 1657 Lisp_Object window = wrap_window (w); |
| 1658 | |
| 428 | 1659 |
| 1660 dga->height = IMAGE_INSTANCE_PIXMAP_HEIGHT (p); | |
| 1661 dga->width = IMAGE_INSTANCE_PIXMAP_WIDTH (p); | |
| 1662 | |
| 819 | 1663 #ifdef DEBUG_REDISPLAY |
| 5090 | 1664 printf ("redisplay_output_pixmap(request) [%dx%d@%d+%d] in [%dx%d@%d+%d]\n", |
| 819 | 1665 db->width, db->height, db->xpos, db->ypos, |
| 1666 dga->width, dga->height, dga->xoffset, dga->yoffset); | |
| 1667 #endif | |
| 1668 | |
| 428 | 1669 /* This makes the glyph area fit into the display area. */ |
| 1670 if (!redisplay_normalize_glyph_area (db, dga)) | |
| 1671 return; | |
| 1672 | |
| 819 | 1673 #ifdef DEBUG_REDISPLAY |
| 5090 | 1674 printf ("redisplay_output_pixmap(normalized) [%dx%d@%d+%d] in [%dx%d@%d+%d]\n", |
| 819 | 1675 db->width, db->height, db->xpos, db->ypos, |
| 1676 dga->width, dga->height, dga->xoffset, dga->yoffset); | |
| 1677 #endif | |
| 1678 | |
| 428 | 1679 /* Clear the area the pixmap is going into. The pixmap itself will |
| 1680 always take care of the full width. We don't want to clear where | |
| 1681 it is going to go in order to avoid flicker. So, all we have to | |
| 1682 take care of is any area above or below the pixmap. If the pixmap | |
| 1683 has a mask in which case we have to clear the whole damn thing | |
| 1684 since we can't yet clear just the area not included in the | |
| 1685 mask. */ | |
| 1686 if (!offset_bitmap) | |
| 1687 { | |
| 1688 redisplay_clear_clipped_region (window, findex, | |
| 434 | 1689 db, dga, |
| 442 | 1690 (IMAGE_INSTANCE_PIXMAP_MASK (p) != 0), |
| 428 | 1691 Qnil); |
| 1692 | |
| 1693 /* This shrinks the display box to exactly enclose the glyph | |
| 1694 area. */ | |
| 1695 redisplay_normalize_display_box (db, dga); | |
| 1696 } | |
| 1697 assert (db->xpos >= 0 && db->ypos >= 0); | |
| 1698 | |
| 1699 MAYBE_DEVMETH (d, output_pixmap, (w, image_instance, | |
| 1700 db, dga, | |
| 1701 findex, cursor_start, | |
| 1702 cursor_width, cursor_height, | |
| 1703 offset_bitmap)); | |
| 1704 } | |
| 1705 | |
| 1706 /**************************************************************************** | |
| 1707 redisplay_clear_region | |
| 1708 | |
| 1709 Clear the area in the box defined by the given parameters using the | |
| 1710 given face. This has been generalised so that subwindows can be | |
| 1711 coped with effectively. | |
| 1712 ****************************************************************************/ | |
| 1713 void | |
| 1714 redisplay_clear_region (Lisp_Object locale, face_index findex, int x, int y, | |
| 1715 int width, int height) | |
| 1716 { | |
| 1717 struct window *w = NULL; | |
| 1718 struct frame *f = NULL; | |
| 1719 struct device *d; | |
| 1720 Lisp_Object background_pixmap = Qunbound; | |
|
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1721 Lisp_Object background_placement = Qunbound; |
| 428 | 1722 Lisp_Object fcolor = Qnil, bcolor = Qnil; |
| 1723 | |
| 1724 if (!width || !height) | |
| 1725 return; | |
| 1726 | |
| 1727 if (WINDOWP (locale)) | |
| 1728 { | |
| 1729 w = XWINDOW (locale); | |
| 1730 f = XFRAME (w->frame); | |
| 1731 } | |
| 1732 else if (FRAMEP (locale)) | |
| 1733 { | |
| 1734 w = NULL; | |
| 1735 f = XFRAME (locale); | |
| 1736 } | |
| 1737 else | |
| 2500 | 1738 ABORT (); |
| 428 | 1739 |
| 1740 d = XDEVICE (f->device); | |
| 1741 | |
| 1742 /* if we have subwindows in the region we have to unmap them */ | |
| 1743 redisplay_unmap_subwindows_maybe (f, x, y, width, height); | |
| 1744 | |
| 1745 /* #### This isn't quite right for when this function is called | |
| 1746 from the toolbar code. */ | |
| 434 | 1747 |
| 5090 | 1748 /* #### GEOM! This uses a backing pixmap in the gutter. Correct? */ |
| 428 | 1749 /* Don't use a backing pixmap in the border area */ |
| 5090 | 1750 if (x >= FRAME_LEFT_INTERNAL_BORDER_END (f) |
| 1751 && x < FRAME_RIGHT_INTERNAL_BORDER_START (f) | |
| 1752 && y >= FRAME_TOP_INTERNAL_BORDER_END (f) | |
| 1753 && y < FRAME_BOTTOM_INTERNAL_BORDER_START (f)) | |
| 428 | 1754 { |
| 1755 Lisp_Object temp; | |
| 434 | 1756 |
| 428 | 1757 if (w) |
| 1758 { | |
| 1759 temp = WINDOW_FACE_CACHEL_BACKGROUND_PIXMAP (w, findex); | |
| 434 | 1760 |
| 428 | 1761 if (IMAGE_INSTANCEP (temp) |
| 1762 && IMAGE_INSTANCE_PIXMAP_TYPE_P (XIMAGE_INSTANCE (temp))) | |
| 1763 { | |
| 1764 /* #### maybe we could implement such that a string | |
| 1765 can be a background pixmap? */ | |
| 1766 background_pixmap = temp; | |
|
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1767 background_placement |
|
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1768 = WINDOW_FACE_CACHEL_BACKGROUND_PLACEMENT (w, findex); |
| 428 | 1769 } |
| 1770 } | |
| 1771 else | |
| 1772 { | |
| 1773 temp = FACE_BACKGROUND_PIXMAP (Vdefault_face, locale); | |
|
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1774 |
| 428 | 1775 if (IMAGE_INSTANCEP (temp) |
| 1776 && IMAGE_INSTANCE_PIXMAP_TYPE_P (XIMAGE_INSTANCE (temp))) | |
| 1777 { | |
| 1778 background_pixmap = temp; | |
|
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1779 background_placement |
|
5502045ec510
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1780 = FACE_BACKGROUND_PLACEMENT (Vdefault_face, locale); |
| 428 | 1781 } |
| 1782 } | |
| 434 | 1783 } |
| 428 | 1784 |
|
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1785 if (!UNBOUNDP (background_pixmap) |
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1786 && XIMAGE_INSTANCE_PIXMAP_DEPTH (background_pixmap) == 0) |
| 428 | 1787 { |
| 1788 if (w) | |
| 1789 { | |
| 1790 fcolor = WINDOW_FACE_CACHEL_FOREGROUND (w, findex); | |
| 1791 bcolor = WINDOW_FACE_CACHEL_BACKGROUND (w, findex); | |
| 1792 } | |
| 1793 else | |
| 1794 { | |
| 1795 fcolor = FACE_FOREGROUND (Vdefault_face, locale); | |
| 1796 bcolor = FACE_BACKGROUND (Vdefault_face, locale); | |
| 1797 } | |
| 1798 } | |
| 1799 else | |
| 1800 { | |
| 1801 fcolor = (w ? | |
| 1802 WINDOW_FACE_CACHEL_BACKGROUND (w, findex) : | |
| 1803 FACE_BACKGROUND (Vdefault_face, locale)); | |
| 434 | 1804 |
| 428 | 1805 } |
| 434 | 1806 |
| 428 | 1807 if (UNBOUNDP (background_pixmap)) |
| 1808 background_pixmap = Qnil; | |
| 434 | 1809 |
|
5515
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1810 DEVMETH (d, clear_region, (locale, f, findex, x, y, width, height, |
|
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1811 fcolor, bcolor, |
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1812 background_pixmap, background_placement)); |
| 428 | 1813 } |
| 1814 | |
| 1815 /**************************************************************************** | |
| 1816 redisplay_clear_clipped_region | |
| 1817 | |
| 1818 Clear the area in the dest display_box not covered by the src | |
| 442 | 1819 display_glyph_area using the given face. This is a common occurrence |
| 428 | 1820 for images shorter than the display line. Clipping can be played |
| 1821 around with by altering these. glyphsrc should be normalized. | |
| 1822 ****************************************************************************/ | |
| 1823 static void | |
| 434 | 1824 redisplay_clear_clipped_region (Lisp_Object window, face_index findex, |
| 1825 struct display_box* dest, struct display_glyph_area* glyphsrc, | |
| 428 | 1826 int fullheight_p, Lisp_Object ignored_subwindow) |
| 1827 { | |
| 1828 /* assume dest->xpos >= 0 */ | |
| 1829 int clear_x; | |
| 1830 struct frame* f = XFRAME (XWINDOW (window)->frame); | |
| 1831 | |
| 1832 if (glyphsrc->xoffset > 0) | |
| 1833 { | |
| 1834 clear_x = dest->xpos + glyphsrc->xoffset; | |
| 1835 } | |
| 1836 else | |
| 1837 { | |
| 1838 clear_x = dest->xpos; | |
| 1839 } | |
| 1840 | |
| 1841 /* If we need the whole height cleared then just do it. */ | |
| 1842 if (fullheight_p) | |
| 1843 { | |
| 1844 redisplay_clear_region (window, findex, clear_x, dest->ypos, | |
| 1845 glyphsrc->width, dest->height); | |
| 1846 } | |
| 1847 else | |
| 1848 { | |
| 434 | 1849 int yoffset = (glyphsrc->yoffset > 0 ? glyphsrc->yoffset : 0); |
| 1850 | |
| 428 | 1851 /* We need to make sure that subwindows are unmapped from the |
| 4187 | 1852 whole area. */ |
| 428 | 1853 redisplay_unmap_subwindows_except_us (f, clear_x, dest->ypos, |
| 1854 glyphsrc->width, dest->height, | |
| 1855 ignored_subwindow); | |
| 1856 /* first the top box */ | |
| 1857 if (yoffset > 0) | |
| 1858 { | |
| 1859 redisplay_clear_region (window, findex, clear_x, dest->ypos, | |
| 1860 glyphsrc->width, yoffset); | |
| 434 | 1861 |
| 428 | 1862 } |
| 1863 /* Then the bottom box */ | |
| 1864 if (yoffset + glyphsrc->height < dest->height) | |
| 1865 { | |
| 1866 redisplay_clear_region (window, findex, clear_x, | |
| 1867 dest->ypos + yoffset + glyphsrc->height, | |
| 434 | 1868 glyphsrc->width, |
| 428 | 1869 dest->height - (yoffset + glyphsrc->height)); |
| 1870 | |
| 1871 } | |
| 1872 } | |
| 1873 } | |
| 1874 | |
| 1875 /***************************************************************************** | |
| 1876 redisplay_normalize_glyph_area | |
| 1877 redisplay_normalize_display_box | |
| 1878 | |
| 819 | 1879 Calculate the visible box for displaying glyphsrc in dest. |
| 1880 | |
| 1881 display_box and display_glyph_area are used to represent an area to | |
| 1882 displayed and where to display it. Using these two structures all | |
| 1883 combinations of clipping and position can be accommodated. | |
| 1884 | |
| 1885 dest - display_box | |
| 1886 | |
| 1887 xpos - absolute horizontal position of area. | |
| 1888 | |
| 4187 | 1889 ypos - absolute vertical position of area. |
| 819 | 1890 |
| 1891 glyphsrc - display_glyph_area | |
| 1892 | |
| 1893 xoffset - horizontal offset of the glyph, +ve means display | |
| 1894 the glyph with the x position offset by xoffset, -ve means | |
| 1895 display starting xoffset into the glyph. | |
| 1896 | |
| 1897 yoffset - vertical offset of the glyph, +ve means display the | |
| 1898 glyph with y position offset by yoffset, -ve means display | |
| 1899 starting xoffset into the glyph. | |
| 1900 | |
| 428 | 1901 ****************************************************************************/ |
| 1902 int | |
| 434 | 1903 redisplay_normalize_glyph_area (struct display_box* dest, |
| 428 | 1904 struct display_glyph_area* glyphsrc) |
| 1905 { | |
| 1906 if (dest->xpos + glyphsrc->xoffset > dest->xpos + dest->width | |
| 1907 || | |
| 1908 dest->ypos + glyphsrc->yoffset > dest->ypos + dest->height | |
| 1909 || | |
| 1910 -glyphsrc->xoffset >= glyphsrc->width | |
| 1911 || | |
| 448 | 1912 -glyphsrc->yoffset >= glyphsrc->height |
| 1913 || | |
| 1914 /* #### Not sure why this wasn't coped with before but normalizing | |
| 1915 to zero width or height is definitely wrong. */ | |
| 1916 (dest->xpos + glyphsrc->xoffset + glyphsrc->width > dest->xpos + dest->width | |
| 1917 && | |
| 1918 dest->width - glyphsrc->xoffset <= 0) | |
| 1919 || | |
| 1920 (dest->ypos + glyphsrc->yoffset + glyphsrc->height > dest->ypos + dest->height | |
| 1921 && | |
| 1922 dest->height - glyphsrc->yoffset <= 0)) | |
| 428 | 1923 { |
| 1924 /* It's all clipped out */ | |
| 1925 return 0; | |
| 1926 } | |
| 1927 | |
| 819 | 1928 /* Horizontal offsets. This works because xoffset can be -ve as well |
| 1929 as +ve. When we enter this function the glyphsrc width and | |
| 1930 height are set to the actual glyph width and height irrespective | |
| 1931 of how much can be displayed. We are trying to clip both the | |
| 1932 offset into the image and the rightmost bounding box. Its | |
| 1933 possible for the glyph width to be much larger than the area we | |
| 1934 are displaying into (e.g. a large glyph in a small frame). */ | |
| 428 | 1935 if (dest->xpos + glyphsrc->xoffset + glyphsrc->width > dest->xpos + dest->width) |
| 1936 { | |
| 819 | 1937 /* glyphsrc offset is +ve we are trying to display offset from the |
| 1938 origin (the bounding box contains some space and then the | |
| 1939 glyph). At most the width we want to display is dest->width - | |
| 1940 glyphsrc->xoffset. */ | |
| 428 | 1941 if (glyphsrc->xoffset > 0) |
| 1942 glyphsrc->width = dest->width - glyphsrc->xoffset; | |
| 819 | 1943 /* glyphsrc offset is -ve we are trying to display hard up |
| 1944 against the dest corner inset into the glyphsrc by | |
| 1945 xoffset.*/ | |
| 4187 | 1946 else if (glyphsrc->xoffset < 0) |
| 819 | 1947 { |
| 1948 glyphsrc->width += glyphsrc->xoffset; | |
| 1949 glyphsrc->width = min (glyphsrc->width, dest->width); | |
| 1950 } | |
| 428 | 1951 else |
| 1952 glyphsrc->width = dest->width; | |
| 1953 } | |
| 1954 | |
| 4187 | 1955 else if (glyphsrc->xoffset < 0) |
| 428 | 1956 glyphsrc->width += glyphsrc->xoffset; |
| 1957 | |
| 1958 /* Vertical offsets. This works because yoffset can be -ve as well as +ve */ | |
| 1959 if (dest->ypos + glyphsrc->yoffset + glyphsrc->height > dest->ypos + dest->height) | |
| 1960 { | |
| 819 | 1961 if ((glyphsrc->yoffset > 0) && (dest->height > glyphsrc->yoffset)) |
| 428 | 1962 glyphsrc->height = dest->height - glyphsrc->yoffset; |
| 4187 | 1963 else if (glyphsrc->yoffset < 0) |
| 819 | 1964 { |
| 1965 glyphsrc->height += glyphsrc->yoffset; | |
| 1966 glyphsrc->height = min (glyphsrc->height, dest->height); | |
| 1967 } | |
| 428 | 1968 else |
| 1969 glyphsrc->height = dest->height; | |
| 1970 } | |
| 1971 | |
| 819 | 1972 else if (glyphsrc->yoffset < 0) |
| 428 | 1973 glyphsrc->height += glyphsrc->yoffset; |
| 1974 | |
| 1975 return 1; | |
| 1976 } | |
| 1977 | |
| 1978 static void | |
| 434 | 1979 redisplay_normalize_display_box (struct display_box* dest, |
| 428 | 1980 struct display_glyph_area* glyphsrc) |
| 1981 { | |
| 1982 /* Adjust the destination area. At the end of this the destination | |
| 1983 area will exactly enclose the glyph area. The only remaining | |
| 1984 adjustment will be offsets into the glyph area. */ | |
| 1985 | |
| 1986 /* Horizontal adjustment. */ | |
| 1987 if (glyphsrc->xoffset > 0) | |
| 1988 { | |
| 1989 dest->xpos += glyphsrc->xoffset; | |
| 1990 dest->width -= glyphsrc->xoffset; | |
| 1991 glyphsrc->xoffset = 0; | |
| 1992 } | |
| 1993 else | |
| 1994 glyphsrc->xoffset = -glyphsrc->xoffset; | |
| 1995 | |
| 1996 if (glyphsrc->width < dest->width) | |
| 1997 dest->width = glyphsrc->width; | |
| 1998 | |
| 1999 /* Vertical adjustment. */ | |
| 2000 if (glyphsrc->yoffset > 0) | |
| 2001 { | |
| 2002 dest->ypos += glyphsrc->yoffset; | |
| 2003 dest->height -= glyphsrc->yoffset; | |
| 2004 glyphsrc->yoffset = 0; | |
| 2005 } | |
| 2006 else | |
| 2007 glyphsrc->yoffset = -glyphsrc->yoffset; | |
| 2008 | |
| 2009 if (glyphsrc->height < dest->height) | |
| 2010 dest->height = glyphsrc->height; | |
| 2011 } | |
| 2012 | |
| 2013 /***************************************************************************** | |
| 2014 redisplay_display_boxes_in_window_p | |
| 2015 | |
| 446 | 2016 Determine whether the required display_glyph_area is completely inside |
| 2017 the window. -1 means the display_box is not in the window. 1 means the | |
| 2018 display_box and the display_glyph_area are in the window. 0 means | |
| 428 | 2019 the display_box is in the window but the display_glyph_area is not. |
| 2020 ****************************************************************************/ | |
| 2021 static int | |
| 2022 redisplay_display_boxes_in_window_p (struct window* w, | |
| 2023 struct display_box* db, | |
| 2024 struct display_glyph_area* dga) | |
| 2025 { | |
| 2026 int left = WINDOW_TEXT_LEFT (w); | |
| 2027 int right = WINDOW_TEXT_RIGHT (w); | |
| 2028 int top = WINDOW_TEXT_TOP (w); | |
| 2029 int bottom = WINDOW_TEXT_BOTTOM (w); | |
| 2030 | |
| 2031 if (db->xpos < left || db->ypos < top | |
| 2032 || db->xpos + db->width > right | |
| 2033 || db->ypos + db->height > bottom) | |
| 446 | 2034 /* We are not displaying in a window at all */ |
| 2035 return -1; | |
| 434 | 2036 |
| 428 | 2037 if (db->xpos + dga->xoffset >= left |
| 2038 && | |
| 2039 db->ypos + dga->yoffset >= top | |
| 2040 && | |
| 2041 db->xpos + dga->xoffset + dga->width <= right | |
| 2042 && | |
| 2043 db->ypos + dga->yoffset + dga->height <= bottom) | |
| 2044 return 1; | |
| 2045 | |
| 446 | 2046 return 0; |
| 428 | 2047 } |
| 2048 | |
| 2049 /***************************************************************************** | |
| 2050 redisplay_calculate_display_boxes | |
| 2051 | |
| 2052 Convert from rune/display_line co-ordinates to display_box | |
| 2053 co-ordinates. | |
| 2054 ****************************************************************************/ | |
| 2055 int | |
| 2056 redisplay_calculate_display_boxes (struct display_line *dl, int xpos, | |
| 819 | 2057 int xoffset, int yoffset, int start_pixpos, |
| 4187 | 2058 int width, struct display_box* dest, |
| 428 | 2059 struct display_glyph_area* src) |
| 2060 { | |
| 2061 dest->xpos = xpos; | |
| 2062 dest->ypos = DISPLAY_LINE_YPOS (dl); | |
| 2063 dest->width = width; | |
| 2064 dest->height = DISPLAY_LINE_HEIGHT (dl); | |
| 2065 | |
| 2066 src->xoffset = -xoffset; | |
| 2067 src->width = 0; | |
| 2068 src->height = 0; | |
| 2069 | |
| 819 | 2070 src->yoffset = -dl->top_clip + yoffset; |
| 2071 | |
| 428 | 2072 if (start_pixpos >=0 && start_pixpos > xpos) |
| 2073 { | |
| 2074 /* Oops, we're asking for a start outside of the displayable | |
| 4187 | 2075 area. */ |
| 428 | 2076 if (start_pixpos > xpos + width) |
| 2077 return 0; | |
| 2078 dest->xpos = start_pixpos; | |
| 2079 dest->width -= (start_pixpos - xpos); | |
| 2080 /* Offsets are -ve when we want to clip pixels off the displayed | |
| 4187 | 2081 glyph. */ |
| 428 | 2082 src->xoffset -= (start_pixpos - xpos); |
| 2083 } | |
| 2084 | |
| 2085 return 1; | |
| 2086 } | |
| 2087 | |
| 2088 /***************************************************************************** | |
| 2089 redisplay_clear_top_of_window | |
| 2090 | |
| 2091 If window is topmost, clear the internal border above it. | |
| 2092 ****************************************************************************/ | |
| 448 | 2093 void |
| 428 | 2094 redisplay_clear_top_of_window (struct window *w) |
| 2095 { | |
| 793 | 2096 Lisp_Object window = wrap_window (w); |
| 2097 | |
| 5090 | 2098 /* #### GEOM! FIXME #### This is definitely wrong. It was clearly not |
| 2099 fixed up to accommodate the gutter. The internal border width is now | |
| 2100 no longer adjacent to the leftmost window, since the gutter | |
| 2101 intervenes. */ | |
| 428 | 2102 if (!NILP (Fwindow_highest_p (window))) |
| 2103 { | |
| 2104 struct frame *f = XFRAME (w->frame); | |
| 2105 int x, y, width, height; | |
| 2106 | |
| 2107 x = w->pixel_left; | |
| 2108 width = w->pixel_width; | |
| 2109 | |
| 2110 if (window_is_leftmost (w)) | |
| 2111 { | |
| 5045 | 2112 x -= FRAME_INTERNAL_BORDER_WIDTH (f); |
| 2113 width += FRAME_INTERNAL_BORDER_WIDTH (f); | |
| 428 | 2114 } |
| 2115 if (window_is_rightmost (w)) | |
| 5045 | 2116 width += FRAME_INTERNAL_BORDER_WIDTH (f); |
| 428 | 2117 |
| 5090 | 2118 /* #### This off-by-one stuff also occurs in XLIKE_clear_frame(). */ |
| 2119 y = FRAME_TOP_INTERNAL_BORDER_START (f) - 1; | |
| 5045 | 2120 height = FRAME_INTERNAL_BORDER_HEIGHT (f) + 1; |
| 428 | 2121 |
| 2122 redisplay_clear_region (window, DEFAULT_INDEX, x, y, width, height); | |
| 2123 } | |
| 2124 } | |
| 2125 | |
| 2126 /***************************************************************************** | |
| 2127 redisplay_clear_to_window_end | |
| 2128 | |
| 2129 Clear the area between ypos1 and ypos2. Each margin area and the | |
| 2130 text area is handled separately since they may each have their own | |
| 2131 background color. | |
| 2132 ****************************************************************************/ | |
| 2133 void | |
| 2134 redisplay_clear_to_window_end (struct window *w, int ypos1, int ypos2) | |
| 2135 { | |
| 2136 struct frame *f = XFRAME (w->frame); | |
| 2137 struct device *d = XDEVICE (f->device); | |
| 2138 | |
| 2139 if (HAS_DEVMETH_P (d, clear_to_window_end)) | |
| 2140 DEVMETH (d, clear_to_window_end, (w, ypos1, ypos2)); | |
| 2141 else | |
| 2142 { | |
| 2143 int height = ypos2 - ypos1; | |
| 434 | 2144 |
| 428 | 2145 if (height) |
| 2146 { | |
| 2147 Lisp_Object window; | |
| 2148 int bflag = 0 ; /* (window_needs_vertical_divider (w) ? 0 : 1);*/ | |
| 2149 layout_bounds bounds; | |
| 434 | 2150 |
| 428 | 2151 bounds = calculate_display_line_boundaries (w, bflag); |
| 793 | 2152 window = wrap_window (w); |
| 428 | 2153 |
| 2154 if (window_is_leftmost (w)) | |
| 5090 | 2155 redisplay_clear_region (window, DEFAULT_INDEX, |
| 2156 FRAME_LEFT_INTERNAL_BORDER_START (f), | |
| 2157 ypos1, FRAME_INTERNAL_BORDER_WIDTH (f), | |
| 2158 height); | |
| 434 | 2159 |
| 428 | 2160 if (bounds.left_in - bounds.left_out > 0) |
| 2161 redisplay_clear_region (window, | |
| 5090 | 2162 get_builtin_face_cache_index |
| 2163 (w, Vleft_margin_face), | |
| 428 | 2164 bounds.left_out, ypos1, |
| 2165 bounds.left_in - bounds.left_out, height); | |
| 434 | 2166 |
| 428 | 2167 if (bounds.right_in - bounds.left_in > 0) |
| 434 | 2168 redisplay_clear_region (window, |
| 428 | 2169 DEFAULT_INDEX, |
| 2170 bounds.left_in, ypos1, | |
| 2171 bounds.right_in - bounds.left_in, height); | |
| 434 | 2172 |
| 428 | 2173 if (bounds.right_out - bounds.right_in > 0) |
| 2174 redisplay_clear_region (window, | |
| 5090 | 2175 get_builtin_face_cache_index |
| 2176 (w, Vright_margin_face), | |
| 428 | 2177 bounds.right_in, ypos1, |
| 5090 | 2178 bounds.right_out - bounds.right_in, |
| 2179 height); | |
| 434 | 2180 |
| 428 | 2181 if (window_is_rightmost (w)) |
| 5090 | 2182 redisplay_clear_region (window, DEFAULT_INDEX, |
| 2183 FRAME_RIGHT_INTERNAL_BORDER_START (f), | |
| 2184 ypos1, FRAME_INTERNAL_BORDER_WIDTH (f), | |
| 2185 height); | |
| 428 | 2186 } |
| 2187 } | |
| 2188 } | |
| 2189 | |
| 2190 /***************************************************************************** | |
| 2191 redisplay_clear_bottom_of_window | |
| 2192 | |
| 2193 Clear window from right below the last display line to right above | |
| 2194 the modeline. The calling function can limit the area actually | |
| 2195 erased by setting min_start and/or max_end to positive values. | |
| 2196 ****************************************************************************/ | |
| 2197 void | |
| 2198 redisplay_clear_bottom_of_window (struct window *w, display_line_dynarr *ddla, | |
| 2199 int min_start, int max_end) | |
| 2200 { | |
| 2201 struct frame *f = XFRAME (w->frame); | |
| 2202 int ypos1, ypos2; | |
| 2203 int ddla_len = Dynarr_length (ddla); | |
| 2204 | |
| 2205 ypos2 = WINDOW_TEXT_BOTTOM (w); | |
| 2206 #ifdef HAVE_SCROLLBARS | |
| 2207 /* This adjustment is to catch the intersection of any scrollbars. */ | |
| 2208 if (f->windows_structure_changed && NILP (w->scrollbar_on_top_p)) | |
| 2209 ypos2 += window_scrollbar_height (w); | |
| 2210 #endif | |
| 2211 | |
| 2212 if (ddla_len) | |
| 2213 { | |
| 4967 | 2214 if (ddla_len == 1 && Dynarr_begin (ddla)->modeline) |
| 428 | 2215 { |
| 2216 ypos1 = WINDOW_TEXT_TOP (w); | |
| 2217 #ifdef HAVE_SCROLLBARS | |
| 2218 /* This adjustment is to catch the intersection of any scrollbars. */ | |
| 2219 if (f->windows_structure_changed && !NILP (w->scrollbar_on_top_p)) | |
| 2220 ypos1 -= window_scrollbar_height (w); | |
| 2221 #endif | |
| 2222 } | |
| 2223 else | |
| 2224 { | |
| 2225 struct display_line *dl = Dynarr_atp (ddla, ddla_len - 1); | |
| 2226 ypos1 = dl->ypos + dl->descent - dl->clip; | |
| 2227 } | |
| 2228 } | |
| 2229 else | |
| 2230 ypos1 = WINDOW_TEXT_TOP (w); | |
| 2231 | |
| 2232 /* #### See if this can be made conditional on the frame | |
| 2233 changing size. */ | |
| 2234 if (MINI_WINDOW_P (w)) | |
| 5045 | 2235 ypos2 += FRAME_INTERNAL_BORDER_HEIGHT (f); |
| 428 | 2236 |
| 2237 if (min_start >= 0 && ypos1 < min_start) | |
| 2238 ypos1 = min_start; | |
| 2239 if (max_end >= 0 && ypos2 > max_end) | |
| 2240 ypos2 = max_end; | |
| 2241 | |
| 2242 if (ypos2 <= ypos1) | |
| 2243 return; | |
| 2244 | |
| 2245 redisplay_clear_to_window_end (w, ypos1, ypos2); | |
| 2246 } | |
| 2247 | |
| 2248 /***************************************************************************** | |
| 2249 redisplay_update_line | |
| 2250 | |
| 2251 This is used during incremental updates to update a single line and | |
| 2252 correct the offsets on all lines below it. At the moment | |
| 2253 update_values is false if we are only updating the modeline. | |
| 2254 ****************************************************************************/ | |
| 2255 void | |
| 2256 redisplay_update_line (struct window *w, int first_line, int last_line, | |
| 2257 int update_values) | |
| 2258 { | |
| 2259 struct frame *f = XFRAME (w->frame); | |
| 2260 struct device *d = XDEVICE (f->device); | |
| 2261 | |
| 2262 display_line_dynarr *cdla = window_display_lines (w, CURRENT_DISP); | |
| 2263 display_line_dynarr *ddla = window_display_lines (w, DESIRED_DISP); | |
| 2264 | |
| 442 | 2265 MAYBE_DEVMETH (d, window_output_begin, (w)); |
| 428 | 2266 |
| 2267 while (first_line <= last_line) | |
| 2268 { | |
| 826 | 2269 Charcount old_len = (Dynarr_atp (cdla, first_line)->end_charpos - |
| 2270 Dynarr_atp (cdla, first_line)->charpos); | |
| 2271 Charcount new_len = (Dynarr_atp (ddla, first_line)->end_charpos - | |
| 2272 Dynarr_atp (ddla, first_line)->charpos); | |
| 428 | 2273 |
| 2274 assert (Dynarr_length (cdla) == Dynarr_length (ddla)); | |
| 2275 | |
| 2276 /* Output the changes. */ | |
| 2277 output_display_line (w, cdla, ddla, first_line, -1, -1); | |
| 2278 | |
| 2279 /* Update the offsets. */ | |
| 2280 if (update_values) | |
| 2281 { | |
| 2282 int cur_line = first_line + 1; | |
| 2283 while (cur_line < Dynarr_length (cdla)) | |
| 2284 { | |
| 2285 Dynarr_atp (cdla, cur_line)->offset += (new_len - old_len); | |
| 2286 Dynarr_atp (ddla, cur_line)->offset += (new_len - old_len); | |
| 2287 cur_line++; | |
| 2288 } | |
| 2289 } | |
| 2290 | |
| 2291 /* Update the window_end_pos and other settings. */ | |
| 2292 if (update_values) | |
| 2293 { | |
| 2294 w->window_end_pos[CURRENT_DISP] -= (new_len - old_len); | |
| 2295 | |
| 2296 if (Dynarr_atp (ddla, first_line)->cursor_elt != -1) | |
| 2297 { | |
| 2298 w->last_point_x[CURRENT_DISP] = w->last_point_x[DESIRED_DISP]; | |
| 2299 w->last_point_y[CURRENT_DISP] = w->last_point_y[DESIRED_DISP]; | |
| 2300 } | |
| 2301 } | |
| 2302 | |
| 2303 first_line++; | |
| 2304 } | |
| 2305 | |
| 2306 /* Update the window max line length. We have to scan the entire | |
| 2307 set of display lines otherwise we might not detect if the max is | |
| 2308 supposed to shrink. */ | |
| 2309 if (update_values) | |
| 2310 { | |
| 2311 int line = 0; | |
| 2312 | |
| 2313 w->max_line_len = 0; | |
| 2314 while (line < Dynarr_length (ddla)) | |
| 2315 { | |
| 2316 struct display_line *dl = Dynarr_atp (ddla, line); | |
| 2317 | |
| 2318 if (!dl->modeline) | |
| 2319 w->max_line_len = max (dl->num_chars, w->max_line_len); | |
| 2320 | |
| 2321 line++; | |
| 2322 } | |
| 2323 } | |
| 2324 | |
| 2325 w->last_modified[CURRENT_DISP] = w->last_modified[DESIRED_DISP]; | |
| 2326 w->last_facechange[CURRENT_DISP] = w->last_facechange[DESIRED_DISP]; | |
| 2327 Fset_marker (w->last_point[CURRENT_DISP], | |
| 2328 Fmarker_position (w->last_point[DESIRED_DISP]), w->buffer); | |
| 2329 Fset_marker (w->last_start[CURRENT_DISP], | |
| 2330 Fmarker_position (w->last_start[DESIRED_DISP]), w->buffer); | |
| 2331 | |
| 2332 /* We don't bother updating the vertical scrollbars here. This | |
| 2333 gives us a performance increase while having minimal loss of | |
| 2334 quality to the scrollbar slider size and position since when this | |
| 2335 function is called we know that the changes to the buffer were | |
| 2336 very localized. We have to update the horizontal scrollbars, | |
| 2337 though, because this routine could cause a change which has a | |
| 2338 larger impact on their sizing. */ | |
| 2339 /* #### See if we can get away with only calling this if | |
| 2340 max_line_len is greater than the window_char_width. */ | |
| 462 | 2341 /* #### BILL!!! Should we do this for GTK as well? */ |
| 428 | 2342 #if defined(HAVE_SCROLLBARS) && defined(HAVE_X_WINDOWS) |
| 2343 { | |
| 2344 extern int stupid_vertical_scrollbar_drag_hack; | |
| 2345 | |
| 2346 update_window_scrollbars (w, NULL, 1, stupid_vertical_scrollbar_drag_hack); | |
| 2347 stupid_vertical_scrollbar_drag_hack = 1; | |
| 2348 } | |
| 2349 #endif | |
| 2350 | |
| 442 | 2351 redisplay_redraw_cursor (f, 0); |
| 2352 MAYBE_DEVMETH (d, window_output_end, (w)); | |
| 428 | 2353 } |
| 2354 | |
| 2355 /***************************************************************************** | |
| 2356 redisplay_output_window | |
| 2357 | |
| 2358 For the given window W, ensure that the current display lines are | |
| 2359 equal to the desired display lines, outputing changes as necessary. | |
| 2360 | |
| 2361 #### Fuck me. This just isn't going to cut it for tty's. The output | |
| 2362 decisions for them must be based on the contents of the entire frame | |
| 2363 because that is how the available output capabilities think. The | |
| 2364 solution is relatively simple. Create redisplay_output_frame. This | |
| 2365 will basically merge all of the separate window display structs into | |
| 2366 a single one for the frame. This combination structure will be able | |
| 2367 to be passed to the same output_display_line which works for windows | |
| 2368 on X frames and the right things will happen. It just takes time to | |
| 2369 do. | |
| 2370 ****************************************************************************/ | |
| 2371 void | |
| 2372 redisplay_output_window (struct window *w) | |
| 2373 { | |
| 2374 struct frame *f = XFRAME (w->frame); | |
| 2375 struct device *d = XDEVICE (f->device); | |
| 2376 | |
| 2377 display_line_dynarr *cdla = window_display_lines (w, CURRENT_DISP); | |
| 2378 display_line_dynarr *ddla = window_display_lines (w, DESIRED_DISP); | |
| 2379 | |
| 2380 int cdla_len = Dynarr_length (cdla); | |
| 2381 int ddla_len = Dynarr_length (ddla); | |
| 2382 | |
| 2383 int line; | |
| 2384 int need_to_clear_bottom = 0; | |
| 2385 int need_to_clear_start = -1; | |
| 2386 int need_to_clear_end = -1; | |
| 2387 | |
| 2388 /* Backgrounds may have changed or windows may have gone away | |
| 2389 leaving dividers lying around. */ | |
| 2390 if (f->faces_changed | |
| 2391 || f->windows_structure_changed | |
| 2392 || w->shadow_thickness_changed) | |
| 2393 need_to_clear_bottom = 1; | |
| 2394 | |
| 2395 /* The first thing we do is determine if we are going to need to | |
| 2396 clear the bottom of the window. We only need to do this if the | |
| 2397 bottom of the current display lines is below the bottom of the | |
| 2398 desired display lines. Note that the number of lines is | |
| 2399 irrelevant. Only the position matters. We also clear to the | |
| 2400 bottom of the window if the modeline has shifted position. */ | |
| 2401 /* #### We can't blindly not clear the bottom if f->clear is true | |
| 2402 since there might be a window-local background. However, for | |
| 2403 those cases where there isn't, clearing the end of the window in | |
| 2404 this case sucks. */ | |
| 2405 if (!need_to_clear_bottom) | |
| 2406 { | |
| 2407 struct display_line *cdl, *ddl; | |
| 2408 | |
| 2409 /* If the modeline has changed position or size, clear the bottom | |
| 2410 of the window. */ | |
| 2411 if (!need_to_clear_bottom) | |
| 2412 { | |
| 2413 cdl = ddl = 0; | |
| 2414 | |
| 2415 if (cdla_len) | |
| 4967 | 2416 cdl = Dynarr_begin (cdla); |
| 428 | 2417 if (ddla_len) |
| 4967 | 2418 ddl = Dynarr_begin (ddla); |
| 428 | 2419 |
| 2420 if (!cdl || !ddl) | |
| 2421 need_to_clear_bottom = 1; | |
| 2422 else if ((!cdl->modeline && ddl->modeline) | |
| 2423 || (cdl->modeline && !ddl->modeline)) | |
| 2424 need_to_clear_bottom = 1; | |
| 2425 else if (cdl->ypos != ddl->ypos || | |
| 2426 cdl->ascent != ddl->ascent || | |
| 2427 cdl->descent != ddl->descent || | |
| 2428 cdl->clip != ddl->clip) | |
| 2429 need_to_clear_bottom = 1; | |
| 2430 | |
| 2431 /* #### This kludge is to make sure the modeline shadows get | |
| 2432 redrawn if the modeline position shifts. */ | |
| 2433 if (need_to_clear_bottom) | |
| 2434 w->shadow_thickness_changed = 1; | |
| 2435 } | |
| 2436 | |
| 2437 if (!need_to_clear_bottom) | |
| 2438 { | |
| 2439 cdl = ddl = 0; | |
| 2440 | |
| 2441 if (cdla_len) | |
| 2442 cdl = Dynarr_atp (cdla, cdla_len - 1); | |
| 2443 if (ddla_len) | |
| 2444 ddl = Dynarr_atp (ddla, ddla_len - 1); | |
| 2445 | |
| 2446 if (!cdl || !ddl) | |
| 2447 need_to_clear_bottom = 1; | |
| 2448 else | |
| 2449 { | |
| 2450 int cdl_bottom, ddl_bottom; | |
| 2451 | |
| 2452 cdl_bottom = cdl->ypos + cdl->descent; | |
| 2453 ddl_bottom = ddl->ypos + ddl->descent; | |
| 2454 | |
| 2455 if (cdl_bottom > ddl_bottom) | |
| 2456 { | |
| 2457 need_to_clear_bottom = 1; | |
| 2458 need_to_clear_start = ddl_bottom; | |
| 2459 need_to_clear_end = cdl_bottom; | |
| 2460 } | |
| 2461 } | |
| 2462 } | |
| 2463 } | |
| 2464 | |
| 2465 /* Perform any output initialization. */ | |
| 442 | 2466 MAYBE_DEVMETH (d, window_output_begin, (w)); |
| 428 | 2467 |
| 2468 /* If the window's structure has changed clear the internal border | |
| 2469 above it if it is topmost (the function will check). */ | |
| 448 | 2470 if (f->windows_structure_changed || f->faces_changed) |
| 428 | 2471 redisplay_clear_top_of_window (w); |
| 2472 | |
| 2473 /* Output each line. */ | |
| 2474 for (line = 0; line < Dynarr_length (ddla); line++) | |
| 2475 { | |
| 2476 output_display_line (w, cdla, ddla, line, -1, -1); | |
| 2477 } | |
| 2478 | |
| 2479 /* If the number of display lines has shrunk, adjust. */ | |
| 2480 if (cdla_len > ddla_len) | |
| 2481 { | |
| 5038 | 2482 Dynarr_set_lengthr (cdla, ddla_len); |
| 428 | 2483 } |
| 2484 | |
| 2485 /* Output a vertical divider between windows, if necessary. */ | |
| 2486 if (window_needs_vertical_divider (w) | |
| 2487 && (f->windows_structure_changed || f->clear)) | |
| 2488 { | |
| 442 | 2489 MAYBE_DEVMETH (d, output_vertical_divider, (w, f->windows_structure_changed)); |
| 428 | 2490 } |
| 2491 | |
| 2492 /* Clear the rest of the window, if necessary. */ | |
| 2493 if (need_to_clear_bottom) | |
| 2494 { | |
| 2495 redisplay_clear_bottom_of_window (w, ddla, need_to_clear_start, | |
| 2496 need_to_clear_end); | |
| 2497 } | |
| 2498 | |
| 2499 w->window_end_pos[CURRENT_DISP] = w->window_end_pos[DESIRED_DISP]; | |
| 2500 Fset_marker (w->start[CURRENT_DISP], | |
| 2501 make_int (marker_position (w->start[DESIRED_DISP])), | |
| 2502 w->buffer); | |
| 2503 Fset_marker (w->pointm[CURRENT_DISP], | |
| 2504 make_int (marker_position (w->pointm[DESIRED_DISP])), | |
| 2505 w->buffer); | |
| 2506 w->last_modified[CURRENT_DISP] = w->last_modified[DESIRED_DISP]; | |
| 2507 w->last_facechange[CURRENT_DISP] = w->last_facechange[DESIRED_DISP]; | |
| 2508 Fset_marker (w->last_start[CURRENT_DISP], | |
| 2509 Fmarker_position (w->last_start[DESIRED_DISP]), w->buffer); | |
| 2510 Fset_marker (w->last_point[CURRENT_DISP], | |
| 2511 Fmarker_position (w->last_point[DESIRED_DISP]), w->buffer); | |
| 2512 w->last_point_x[CURRENT_DISP] = w->last_point_x[DESIRED_DISP]; | |
| 2513 w->last_point_y[CURRENT_DISP] = w->last_point_y[DESIRED_DISP]; | |
| 2514 w->shadow_thickness_changed = 0; | |
| 2515 | |
| 2516 set_window_display_buffer (w, XBUFFER (w->buffer)); | |
| 2517 find_window_mirror (w)->truncate_win = window_truncation_on (w); | |
| 2518 | |
| 2519 /* Overkill on invalidating the cache. It is very bad for it to not | |
| 2520 get invalidated when it should be. */ | |
| 2521 INVALIDATE_DEVICE_PIXEL_TO_GLYPH_CACHE (d); | |
| 2522 | |
| 442 | 2523 redisplay_redraw_cursor (f, 0); |
| 2524 MAYBE_DEVMETH (d, window_output_end, (w)); | |
| 428 | 2525 |
| 2526 #ifdef HAVE_SCROLLBARS | |
| 2527 update_window_scrollbars (w, NULL, !MINI_WINDOW_P (w), 0); | |
| 2528 #endif | |
| 2529 } | |
| 2530 | |
| 2531 /***************************************************************************** | |
| 1318 | 2532 redisplay_redraw_exposed_window |
| 2533 | |
| 2534 Given a bounding box for an area that needs to be redrawn, determine | |
| 2535 what parts of what lines are contained within and re-output their | |
| 2536 contents. | |
| 2537 ****************************************************************************/ | |
| 2538 static void | |
| 2539 redisplay_redraw_exposed_window (struct window *w, int x, int y, int width, | |
| 2540 int height) | |
| 2541 { | |
| 2542 struct frame *f = XFRAME (w->frame); | |
| 2543 int line; | |
| 2544 int start_x, start_y, end_x, end_y; | |
| 2545 int orig_windows_structure_changed; | |
| 2546 | |
| 2547 display_line_dynarr *cdla = window_display_lines (w, CURRENT_DISP); | |
| 2548 | |
| 2549 if (!NILP (w->vchild)) | |
| 2550 { | |
| 2551 redisplay_redraw_exposed_windows (w->vchild, x, y, width, height); | |
| 2552 return; | |
| 2553 } | |
| 2554 else if (!NILP (w->hchild)) | |
| 2555 { | |
| 2556 redisplay_redraw_exposed_windows (w->hchild, x, y, width, height); | |
| 2557 return; | |
| 2558 } | |
| 2559 | |
| 2560 /* If the window doesn't intersect the exposed region, we're done here. */ | |
| 2561 if (x >= WINDOW_RIGHT (w) || (x + width) <= WINDOW_LEFT (w) | |
| 2562 || y >= WINDOW_BOTTOM (w) || (y + height) <= WINDOW_TOP (w)) | |
| 2563 { | |
| 2564 return; | |
| 2565 } | |
| 2566 else | |
| 2567 { | |
| 2568 start_x = max (WINDOW_LEFT (w), x); | |
| 2569 end_x = min (WINDOW_RIGHT (w), (x + width)); | |
| 2570 start_y = max (WINDOW_TOP (w), y); | |
| 2571 end_y = min (WINDOW_BOTTOM (w), y + height); | |
| 2572 | |
| 2573 /* We do this to make sure that the 3D modelines get redrawn if | |
| 4187 | 2574 they are in the exposed region. */ |
| 1318 | 2575 orig_windows_structure_changed = f->windows_structure_changed; |
| 2576 f->windows_structure_changed = 1; | |
| 2577 } | |
| 2578 | |
| 2579 /* #### Not in GTK or MS Windows. I think is because of toolbars, which | |
| 2580 are handled as widgets in GTK and MS Windows, but drawn ourselves in | |
| 2581 X. For the moment I'm leaving this in, if it causes problems we have | |
| 2582 some device method indicating whether we're drawing our own | |
| 2583 toolbars. */ | |
| 2584 redisplay_clear_top_of_window (w); | |
| 2585 if (window_needs_vertical_divider (w)) | |
| 2586 { | |
| 2587 FRAMEMETH (f, output_vertical_divider, (w, 0)); | |
| 2588 } | |
| 2589 | |
| 2590 for (line = 0; line < Dynarr_length (cdla); line++) | |
| 2591 { | |
| 2592 struct display_line *cdl = Dynarr_atp (cdla, line); | |
| 2593 int top_y = DISPLAY_LINE_YPOS (cdl); | |
| 2594 int bottom_y = DISPLAY_LINE_YPOS (cdl) + DISPLAY_LINE_HEIGHT (cdl); | |
| 2595 | |
| 2596 if (bottom_y >= start_y) | |
| 2597 { | |
| 2598 if (top_y > end_y) | |
| 2599 { | |
| 2600 if (line == 0) | |
| 2601 continue; | |
| 2602 else | |
| 2603 break; | |
| 2604 } | |
| 2605 else | |
| 2606 { | |
| 2607 output_display_line (w, 0, cdla, line, start_x, end_x); | |
| 2608 } | |
| 2609 } | |
| 2610 } | |
| 2611 | |
| 2612 f->windows_structure_changed = orig_windows_structure_changed; | |
| 2613 | |
| 2614 /* If there have never been any face cache_elements created, then this | |
| 2615 expose event doesn't actually have anything to do. */ | |
| 2616 if (Dynarr_largest (w->face_cachels)) | |
| 2617 redisplay_clear_bottom_of_window (w, cdla, start_y, end_y); | |
| 2618 | |
| 2619 #ifdef HAVE_SCROLLBARS | |
| 2620 MAYBE_FRAMEMETH (f, redisplay_deadbox, (w, x, y, width, height)); | |
| 2621 #endif | |
| 2622 } | |
| 2623 | |
| 2624 | |
| 2625 /***************************************************************************** | |
| 2626 redisplay_redraw_exposed_windows | |
| 2627 | |
| 2628 For each window beneath the given window in the window hierarchy, | |
| 2629 ensure that it is redrawn if necessary after an Expose event. | |
| 2630 ****************************************************************************/ | |
| 2631 static void | |
| 2632 redisplay_redraw_exposed_windows (Lisp_Object window, int x, int y, int width, | |
| 2633 int height) | |
| 2634 { | |
| 2635 for (; !NILP (window); window = XWINDOW (window)->next) | |
| 2636 redisplay_redraw_exposed_window (XWINDOW (window), x, y, width, height); | |
| 2637 } | |
| 2638 | |
| 2639 static void | |
| 2640 redisplay_redraw_exposed_area_1 (Lisp_Object arg) | |
| 2641 { | |
| 2642 assert (!in_display); | |
| 2643 redisplay_redraw_exposed_area (XFRAME (X1ST (arg)), | |
| 2644 XINT (X2ND (arg)), | |
| 2645 XINT (X3RD (arg)), | |
| 2646 XINT (X4TH (arg)), | |
| 2647 XINT (X5TH (arg))); | |
| 2648 free_list (arg); | |
| 2649 } | |
| 2650 | |
| 2651 /***************************************************************************** | |
| 2652 redisplay_redraw_exposed_area | |
| 2653 | |
| 2654 For each window on the given frame, ensure that any area in the | |
| 2655 Exposed area is redrawn. | |
| 2656 ****************************************************************************/ | |
| 2657 void | |
| 2658 redisplay_redraw_exposed_area (struct frame *f, int x, int y, int width, | |
| 2659 int height) | |
| 2660 { | |
| 2661 int depth; | |
| 2662 | |
| 2663 if (in_display) | |
| 2664 { | |
| 2665 /* Not safe to do it now, so delay it */ | |
| 2666 register_post_redisplay_action (redisplay_redraw_exposed_area_1, | |
| 2667 list5 (wrap_frame (f), make_int (x), | |
| 2668 make_int (y), make_int (width), | |
| 2669 make_int (height))); | |
| 2670 return; | |
| 2671 } | |
| 2672 | |
| 2673 depth = enter_redisplay_critical_section (); | |
| 2674 | |
| 2675 MAYBE_FRAMEMETH (f, frame_output_begin, (f)); | |
| 2676 | |
| 2677 /* If any window on the frame has had its face cache reset then the | |
| 2678 redisplay structures are effectively invalid. If we attempt to | |
| 2679 use them we'll blow up. We mark the frame as changed to ensure | |
| 2680 that redisplay will do a full update. This probably isn't | |
| 2681 necessary but it can't hurt. */ | |
| 2682 #ifdef HAVE_TOOLBARS | |
| 2683 /* #### We would rather put these off as well but there is currently | |
| 2684 no combination of flags which will force an unchanged toolbar to | |
| 2685 redraw anyhow. */ | |
| 2686 MAYBE_FRAMEMETH (f, redraw_exposed_toolbars, (f, x, y, width, height)); | |
| 2687 #endif | |
| 2688 redraw_exposed_gutters (f, x, y, width, height); | |
| 2689 | |
| 2690 if (!f->window_face_cache_reset) | |
| 2691 { | |
| 2692 redisplay_redraw_exposed_windows (f->root_window, x, y, width, height); | |
| 2693 /* #### Why not call this always? */ | |
| 2694 MAYBE_FRAMEMETH (f, frame_output_end, (f)); | |
| 2695 } | |
| 2696 else | |
| 2697 MARK_FRAME_CHANGED (f); | |
| 2698 | |
| 2699 exit_redisplay_critical_section (depth); | |
| 2700 } | |
| 2701 | |
| 2702 /***************************************************************************** | |
| 428 | 2703 bevel_modeline |
| 2704 | |
| 2705 Draw a 3d border around the modeline on window W. | |
| 2706 ****************************************************************************/ | |
| 2707 void | |
| 2708 bevel_modeline (struct window *w, struct display_line *dl) | |
| 2709 { | |
| 2710 struct frame *f = XFRAME (w->frame); | |
| 2711 struct device *d = XDEVICE (f->device); | |
| 2712 int x, y, width, height; | |
| 2713 int shadow_thickness = MODELINE_SHADOW_THICKNESS (w); | |
| 2714 enum edge_style style; | |
| 2715 | |
| 2716 x = WINDOW_MODELINE_LEFT (w); | |
| 2717 width = WINDOW_MODELINE_RIGHT (w) - x; | |
| 2718 y = dl->ypos - dl->ascent - shadow_thickness; | |
| 2719 height = dl->ascent + dl->descent + 2 * shadow_thickness; | |
| 2720 | |
| 2721 if (XINT (w->modeline_shadow_thickness) < 0) | |
| 2722 { | |
| 2723 style = EDGE_BEVEL_IN; | |
| 2724 } | |
| 2725 else | |
| 2726 { | |
| 2727 style = EDGE_BEVEL_OUT; | |
| 2728 } | |
| 2729 | |
| 434 | 2730 MAYBE_DEVMETH (d, bevel_area, |
| 428 | 2731 (w, MODELINE_INDEX, x, y, width, height, shadow_thickness, |
| 2732 EDGE_ALL, style)); | |
| 2733 } |