source/blender/editors/space_time/space_time.c

   1 /*
   2  * ***** BEGIN GPL LICENSE BLOCK *****
   3  *
   4  * This program is free software; you can redistribute it and/or
   5  * modify it under the terms of the GNU General Public License
   6  * as published by the Free Software Foundation; either version 2
   7  * of the License, or (at your option) any later version.
   8  *
   9  * This program is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12  * GNU General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU General Public License
  15  * along with this program; if not, write to the Free Software Foundation,
  16  * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
  17  *
  18  * The Original Code is Copyright (C) 2008 Blender Foundation.
  19  * All rights reserved.
  20  *
  21  *
  22  * Contributor(s): Blender Foundation
  23  *
  24  * ***** END GPL LICENSE BLOCK *****
  25  */
  26
  27 /** \file blender/editors/space_time/space_time.c
  28  *  \ingroup sptime
  29  */
  30
  31
  32 #include <string.h>
  33 #include <stdio.h>
  34
  35 #include "DNA_object_types.h"
  36 #include "DNA_scene_types.h"
  37
  38 #include "MEM_guardedalloc.h"
  39
  40 #include "BLI_blenlib.h"
  41 #include "BLI_dlrbTree.h"
  42 #include "BLI_utildefines.h"
  43
  44 #include "BKE_context.h"
  45 #include "BKE_global.h"
  46 #include "BKE_screen.h"
  47 #include "BKE_pointcache.h"
  48
  49 #include "ED_anim_api.h"
  50 #include "ED_keyframes_draw.h"
  51 #include "ED_screen.h"
  52
  53 #include "WM_api.h"
  54 #include "WM_types.h"
  55
  56 #include "BIF_gl.h"
  57 #include "BIF_glutil.h"
  58
  59 #include "UI_resources.h"
  60 #include "UI_view2d.h"
  61
  62 #include "ED_space_api.h"
  63 #include "ED_markers.h"
  64
  65 #include "time_intern.h"
  66
  67 /* ************************ main time area region *********************** */
  68
  69 static void time_draw_sfra_efra(Scene *scene, View2D *v2d)
  70 {
  71         /* draw darkened area outside of active timeline
  72          * frame range used is preview range or scene range
  73          */
  74         glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
  75         glEnable(GL_BLEND);
  76                 glColor4f(0.0f, 0.0f, 0.0f, 0.4f);
  77
  78                 if (PSFRA < PEFRA) {
  79                         glRectf(v2d->cur.xmin, v2d->cur.ymin, (float)PSFRA, v2d->cur.ymax);
  80                         glRectf((float)PEFRA, v2d->cur.ymin, v2d->cur.xmax, v2d->cur.ymax);
  81                 }
  82                 else {
  83                         glRectf(v2d->cur.xmin, v2d->cur.ymin, v2d->cur.xmax, v2d->cur.ymax);
  84                 }
  85         glDisable(GL_BLEND);
  86
  87         UI_ThemeColorShade(TH_BACK, -60);
  88         /* thin lines where the actual frames are */
  89         fdrawline((float)PSFRA, v2d->cur.ymin, (float)PSFRA, v2d->cur.ymax);
  90         fdrawline((float)PEFRA, v2d->cur.ymin, (float)PEFRA, v2d->cur.ymax);
  91 }
  92
  93 #define CACHE_DRAW_HEIGHT       3.0f
  94
  95 static void time_draw_cache(SpaceTime *stime, Object *ob)
  96 {
  97         PTCacheID *pid;
  98         ListBase pidlist;
  99         SpaceTimeCache *stc = stime->caches.first;
 100         float yoffs=0.f;
 101
 102         if (!(stime->cache_display & TIME_CACHE_DISPLAY) || (!ob))
 103                 return;
 104
 105         BKE_ptcache_ids_from_object(&pidlist, ob, NULL, 0);
 106
 107         /* iterate over pointcaches on the active object,
 108          * add spacetimecache and vertex array for each */
 109         for(pid=pidlist.first; pid; pid=pid->next) {
 110                 float col[4], *fp;
 111                 int i, sta = pid->cache->startframe, end = pid->cache->endframe;
 112                 int len = (end - sta + 1)*4;
 113
 114                 switch(pid->type) {
 115                         case PTCACHE_TYPE_SOFTBODY:
 116                                 if (!(stime->cache_display & TIME_CACHE_SOFTBODY)) continue;
 117                                 break;
 118                         case PTCACHE_TYPE_PARTICLES:
 119                                 if (!(stime->cache_display & TIME_CACHE_PARTICLES))     continue;
 120                                 break;
 121                         case PTCACHE_TYPE_CLOTH:
 122                                 if (!(stime->cache_display & TIME_CACHE_CLOTH)) continue;
 123                                 break;
 124                         case PTCACHE_TYPE_SMOKE_DOMAIN:
 125                         case PTCACHE_TYPE_SMOKE_HIGHRES:
 126                                 if (!(stime->cache_display & TIME_CACHE_SMOKE)) continue;
 127                                 break;
 128                 }
 129
 130                 if(pid->cache->cached_frames == NULL)
 131                         continue;
 132
 133
 134                 /* make sure we have stc with correct array length */
 135                 if(stc == NULL || MEM_allocN_len(stc->array) != len*2*sizeof(float)) {
 136                         if(stc) {
 137                                 MEM_freeN(stc->array);
 138                         }
 139                         else {
 140                                 stc = MEM_callocN(sizeof(SpaceTimeCache), "spacetimecache");
 141                                 BLI_addtail(&stime->caches, stc);
 142                         }
 143
 144                         stc->array = MEM_callocN(len*2*sizeof(float), "SpaceTimeCache array");
 145                 }
 146
 147                 /* fill the vertex array with a quad for each cached frame */
 148                 for (i=sta, fp=stc->array; i<=end; i++) {
 149                         if (pid->cache->cached_frames[i-sta]) {
 150                                 fp[0] = (float)i-0.5f;
 151                                 fp[1] = 0.0;
 152                                 fp+=2;
 153
 154                                 fp[0] = (float)i-0.5f;
 155                                 fp[1] = 1.0;
 156                                 fp+=2;
 157
 158                                 fp[0] = (float)i+0.5f;
 159                                 fp[1] = 1.0;
 160                                 fp+=2;
 161
 162                                 fp[0] = (float)i+0.5f;
 163                                 fp[1] = 0.0;
 164                                 fp+=2;
 165                         }
 166                 }
 167
 168                 glPushMatrix();
 169                 glTranslatef(0.0, (float)V2D_SCROLL_HEIGHT+yoffs, 0.0);
 170                 glScalef(1.0, CACHE_DRAW_HEIGHT, 0.0);
 171
 172                 switch(pid->type) {
 173                         case PTCACHE_TYPE_SOFTBODY:
 174                                 col[0] = 1.0;   col[1] = 0.4;   col[2] = 0.02;
 175                                 col[3] = 0.1;
 176                                 break;
 177                         case PTCACHE_TYPE_PARTICLES:
 178                                 col[0] = 1.0;   col[1] = 0.1;   col[2] = 0.02;
 179                                 col[3] = 0.1;
 180                                 break;
 181                         case PTCACHE_TYPE_CLOTH:
 182                                 col[0] = 0.1;   col[1] = 0.1;   col[2] = 0.75;
 183                                 col[3] = 0.1;
 184                                 break;
 185                         case PTCACHE_TYPE_SMOKE_DOMAIN:
 186                         case PTCACHE_TYPE_SMOKE_HIGHRES:
 187                                 col[0] = 0.2;   col[1] = 0.2;   col[2] = 0.2;
 188                                 col[3] = 0.1;
 189                                 break;
 190                 }
 191                 glColor4fv(col);
 192
 193                 glEnable(GL_BLEND);
 194
 195                 glRectf((float)sta, 0.0, (float)end, 1.0);
 196
 197                 col[3] = 0.4f;
 198                 if (pid->cache->flag & PTCACHE_BAKED) {
 199                         col[0] -= 0.4f; col[1] -= 0.4f; col[2] -= 0.4f;
 200                 }
 201                 glColor4fv(col);
 202
 203                 glEnableClientState(GL_VERTEX_ARRAY);
 204                 glVertexPointer(2, GL_FLOAT, 0, stc->array);
 205                 glDrawArrays(GL_QUADS, 0, (fp-stc->array)/2);
 206                 glDisableClientState(GL_VERTEX_ARRAY);
 207
 208                 glDisable(GL_BLEND);
 209
 210                 glPopMatrix();
 211
 212                 yoffs += CACHE_DRAW_HEIGHT;
 213
 214                 stc = stc->next;
 215         }
 216
 217         BLI_freelistN(&pidlist);
 218
 219         /* free excessive caches */
 220         while(stc) {
 221                 SpaceTimeCache *tmp = stc->next;
 222                 BLI_remlink(&stime->caches, stc);
 223                 MEM_freeN(stc->array);
 224                 MEM_freeN(stc);
 225                 stc = tmp;
 226         }
 227 }
 228
 229 static void time_cache_free(SpaceTime *stime)
 230 {
 231         SpaceTimeCache *stc;
 232
 233         for (stc= stime->caches.first; stc; stc=stc->next) {
 234                 if (stc->array) {
 235                         MEM_freeN(stc->array);
 236                         stc->array = NULL;
 237                 }
 238         }
 239
 240         BLI_freelistN(&stime->caches);
 241 }
 242
 243 static void time_cache_refresh(SpaceTime *stime)
 244 {
 245         /* Free previous caches to indicate full refresh */
 246         time_cache_free(stime);
 247 }
 248
 249 /* helper function - find actkeycolumn that occurs on cframe, or the nearest one if not found */
 250 static ActKeyColumn *time_cfra_find_ak (ActKeyColumn *ak, float cframe)
 251 {
 252         ActKeyColumn *akn= NULL;
 253
 254         /* sanity checks */
 255         if (ak == NULL)
 256                 return NULL;
 257
 258         /* check if this is a match, or whether it is in some subtree */
 259         if (cframe < ak->cfra)
 260                 akn= time_cfra_find_ak(ak->left, cframe);
 261         else if (cframe > ak->cfra)
 262                 akn= time_cfra_find_ak(ak->right, cframe);
 263
 264         /* if no match found (or found match), just use the current one */
 265         if (akn == NULL)
 266                 return ak;
 267         else
 268                 return akn;
 269 }
 270
 271 /* helper for time_draw_keyframes() */
 272 static void time_draw_idblock_keyframes(View2D *v2d, ID *id, short onlysel)
 273 {
 274         bDopeSheet ads= {NULL};
 275         DLRBT_Tree keys;
 276         ActKeyColumn *ak;
 277
 278         /* init binarytree-list for getting keyframes */
 279         BLI_dlrbTree_init(&keys);
 280
 281         /* init dopesheet settings */
 282         if (onlysel)
 283                 ads.filterflag |= ADS_FILTER_ONLYSEL;
 284
 285         /* populate tree with keyframe nodes */
 286         switch (GS(id->name)) {
 287                 case ID_SCE:
 288                         scene_to_keylist(&ads, (Scene *)id, &keys, NULL);
 289                         break;
 290                 case ID_OB:
 291                         ob_to_keylist(&ads, (Object *)id, &keys, NULL);
 292                         break;
 293         }
 294
 295         /* build linked-list for searching */
 296         BLI_dlrbTree_linkedlist_sync(&keys);
 297
 298         /* start drawing keyframes
 299          *      - we use the binary-search capabilities of the tree to only start from
 300          *        the first visible keyframe (last one can then be easily checked)
 301          *      - draw within a single GL block to be faster
 302          */
 303         glBegin(GL_LINES);
 304                 for ( ak=time_cfra_find_ak(keys.root, v2d->cur.xmin);
 305                          (ak) && (ak->cfra <= v2d->cur.xmax);
 306                           ak=ak->next )
 307                 {
 308                         glVertex2f(ak->cfra, v2d->tot.ymin);
 309                         glVertex2f(ak->cfra, v2d->tot.ymax);
 310                 }
 311         glEnd(); // GL_LINES
 312
 313         /* free temp stuff */
 314         BLI_dlrbTree_free(&keys);
 315 }
 316
 317 /* draw keyframe lines for timeline */
 318 static void time_draw_keyframes(const bContext *C, SpaceTime *stime, ARegion *ar)
 319 {
 320         Scene *scene= CTX_data_scene(C);
 321         Object *ob= CTX_data_active_object(C);
 322         View2D *v2d= &ar->v2d;
 323         short onlysel= (stime->flag & TIME_ONLYACTSEL);
 324
 325         /* draw scene keyframes first
 326          *      - don't try to do this when only drawing active/selected data keyframes,
 327          *        since this can become quite slow
 328          */
 329         if (scene && onlysel==0) {
 330                 /* set draw color */
 331                 glColor3ub(0xDD, 0xA7, 0x00);
 332                 time_draw_idblock_keyframes(v2d, (ID *)scene, onlysel);
 333         }
 334
 335         /* draw keyframes from selected objects
 336          *      - only do the active object if in posemode (i.e. showing only keyframes for the bones)
 337          *        OR the onlysel flag was set, which means that only active object's keyframes should
 338          *        be considered
 339          */
 340         glColor3ub(0xDD, 0xD7, 0x00);
 341
 342         if (ob && ((ob->mode == OB_MODE_POSE) || onlysel)) {
 343                 /* draw keyframes for active object only */
 344                 time_draw_idblock_keyframes(v2d, (ID *)ob, onlysel);
 345         }
 346         else {
 347                 short active_done = 0;
 348
 349                 /* draw keyframes from all selected objects */
 350                 CTX_DATA_BEGIN(C, Object*, obsel, selected_objects)
 351                 {
 352                         /* last arg is 0, since onlysel doesn't apply here... */
 353                         time_draw_idblock_keyframes(v2d, (ID *)obsel, 0);
 354
 355                         /* if this object is the active one, set flag so that we don't draw again */
 356                         if (obsel == ob)
 357                                 active_done= 1;
 358                 }
 359                 CTX_DATA_END;
 360
 361                 /* if active object hasn't been done yet, draw it... */
 362                 if (ob && (active_done == 0))
 363                         time_draw_idblock_keyframes(v2d, (ID *)ob, 0);
 364         }
 365 }
 366
 367 /* ---------------- */
 368
 369 static void time_refresh(const bContext *UNUSED(C), ScrArea *sa)
 370 {
 371         /* find the main timeline region and refresh cache display*/
 372         ARegion *ar= BKE_area_find_region_type(sa, RGN_TYPE_WINDOW);
 373         if(ar) {
 374                 SpaceTime *stime = (SpaceTime *)sa->spacedata.first;
 375                 time_cache_refresh(stime);
 376         }
 377 }
 378
 379 /* editor level listener */
 380 static void time_listener(ScrArea *sa, wmNotifier *wmn)
 381 {
 382
 383         /* mainly for updating cache display */
 384         switch (wmn->category) {
 385                 case NC_OBJECT:
 386                         switch (wmn->data) {
 387                                 case ND_BONE_ACTIVE:
 388                                 case ND_POINTCACHE:
 389                                 case ND_MODIFIER:
 390                                 case ND_PARTICLE:
 391                                         ED_area_tag_refresh(sa);
 392                                         ED_area_tag_redraw(sa);
 393                                         break;
 394                         }
 395                         break;
 396                 case NC_SCENE:
 397                         switch (wmn->data) {
 398                                 case ND_OB_ACTIVE:
 399                                 case ND_FRAME:
 400                                         ED_area_tag_refresh(sa);
 401                                         break;
 402                                 case ND_FRAME_RANGE:
 403                                         {
 404                                                 ARegion *ar;
 405                                                 Scene *scene = wmn->reference;
 406
 407                                                 for (ar= sa->regionbase.first; ar; ar= ar->next) {
 408                                                         if (ar->regiontype==RGN_TYPE_WINDOW) {
 409                                                                 ar->v2d.tot.xmin= (float)(SFRA - 4);
 410                                                                 ar->v2d.tot.xmax= (float)(EFRA + 4);
 411                                                                 break;
 412                                                         }
 413                                                 }
 414                                         }
 415                                         break;
 416                         }
 417                 case NC_SPACE:
 418                         switch (wmn->data) {
 419                                 case ND_SPACE_CHANGED:
 420                                         ED_area_tag_refresh(sa);
 421                                         break;
 422                         }
 423                 case NC_WM:
 424                         switch (wmn->data) {
 425                                 case ND_FILEREAD:
 426                                         ED_area_tag_refresh(sa);
 427                                         break;
 428                         }
 429         }
 430 }
 431
 432 /* ---------------- */
 433
 434 /* add handlers, stuff you only do once or on area/region changes */
 435 static void time_main_area_init(wmWindowManager *wm, ARegion *ar)
 436 {
 437         wmKeyMap *keymap;
 438
 439         UI_view2d_region_reinit(&ar->v2d, V2D_COMMONVIEW_CUSTOM, ar->winx, ar->winy);
 440
 441         /* own keymap */
 442         keymap= WM_keymap_find(wm->defaultconf, "Timeline", SPACE_TIME, 0);
 443         WM_event_add_keymap_handler_bb(&ar->handlers, keymap, &ar->v2d.mask, &ar->winrct);
 444 }
 445
 446 static void time_main_area_draw(const bContext *C, ARegion *ar)
 447 {
 448         /* draw entirely, view changes should be handled here */
 449         Scene *scene= CTX_data_scene(C);
 450         SpaceTime *stime= CTX_wm_space_time(C);
 451         Object *obact = CTX_data_active_object(C);
 452         View2D *v2d= &ar->v2d;
 453         View2DGrid *grid;
 454         View2DScrollers *scrollers;
 455         int unit, flag=0;
 456
 457         /* clear and setup matrix */
 458         UI_ThemeClearColor(TH_BACK);
 459         glClear(GL_COLOR_BUFFER_BIT);
 460
 461         UI_view2d_view_ortho(v2d);
 462
 463         /* grid */
 464         unit= (stime->flag & TIME_DRAWFRAMES)? V2D_UNIT_FRAMES: V2D_UNIT_SECONDS;
 465         grid= UI_view2d_grid_calc(scene, v2d, unit, V2D_GRID_CLAMP, V2D_ARG_DUMMY, V2D_ARG_DUMMY, ar->winx, ar->winy);
 466         UI_view2d_grid_draw(v2d, grid, (V2D_VERTICAL_LINES|V2D_VERTICAL_AXIS));
 467         UI_view2d_grid_free(grid);
 468
 469         /* start and end frame */
 470         time_draw_sfra_efra(scene, v2d);
 471
 472         /* current frame */
 473         flag = DRAWCFRA_WIDE; /* this is only really needed on frames where there's a keyframe, but this will do... */
 474         if ((stime->flag & TIME_DRAWFRAMES)==0)         flag |= DRAWCFRA_UNIT_SECONDS;
 475         if (stime->flag & TIME_CFRA_NUM)                        flag |= DRAWCFRA_SHOW_NUMBOX;
 476         ANIM_draw_cfra(C, v2d, flag);
 477
 478         UI_view2d_view_ortho(v2d);
 479
 480         /* keyframes */
 481         time_draw_keyframes(C, stime, ar);
 482
 483         /* markers */
 484         UI_view2d_view_orthoSpecial(ar, v2d, 1);
 485         draw_markers_time(C, 0);
 486
 487         /* caches */
 488         time_draw_cache(stime, obact);
 489
 490         /* reset view matrix */
 491         UI_view2d_view_restore(C);
 492
 493         /* scrollers */
 494         scrollers= UI_view2d_scrollers_calc(C, v2d, unit, V2D_GRID_CLAMP, V2D_ARG_DUMMY, V2D_ARG_DUMMY);
 495         UI_view2d_scrollers_draw(C, v2d, scrollers);
 496         UI_view2d_scrollers_free(scrollers);
 497 }
 498
 499 static void time_main_area_listener(ARegion *ar, wmNotifier *wmn)
 500 {
 501         /* context changes */
 502         switch(wmn->category) {
 503                 case NC_SPACE:
 504                         if(wmn->data == ND_SPACE_TIME)
 505                                 ED_region_tag_redraw(ar);
 506                         break;
 507
 508                 case NC_ANIMATION:
 509                         ED_region_tag_redraw(ar);
 510                         break;
 511
 512                 case NC_SCENE:
 513                         switch (wmn->data) {
 514                                 case ND_OB_SELECT:
 515                                 case ND_OB_ACTIVE:
 516                                 case ND_FRAME:
 517                                 case ND_FRAME_RANGE:
 518                                 case ND_KEYINGSET:
 519                                 case ND_RENDER_OPTIONS:
 520                                         ED_region_tag_redraw(ar);
 521                                 break;
 522                         }
 523         }
 524 }
 525
 526 /* ************************ header time area region *********************** */
 527
 528 /* add handlers, stuff you only do once or on area/region changes */
 529 static void time_header_area_init(wmWindowManager *UNUSED(wm), ARegion *ar)
 530 {
 531         ED_region_header_init(ar);
 532 }
 533
 534 static void time_header_area_draw(const bContext *C, ARegion *ar)
 535 {
 536         ED_region_header(C, ar);
 537 }
 538
 539 static void time_header_area_listener(ARegion *ar, wmNotifier *wmn)
 540 {
 541         /* context changes */
 542         switch(wmn->category) {
 543                 case NC_SCREEN:
 544                         if(wmn->data==ND_ANIMPLAY)
 545                                 ED_region_tag_redraw(ar);
 546                         break;
 547
 548                 case NC_SCENE:
 549                         switch (wmn->data) {
 550                                 case ND_OB_SELECT:
 551                                 case ND_FRAME:
 552                                 case ND_FRAME_RANGE:
 553                                 case ND_KEYINGSET:
 554                                 case ND_RENDER_OPTIONS:
 555                                         ED_region_tag_redraw(ar);
 556                                 break;
 557                         }
 558
 559                 case NC_SPACE:
 560                         if(wmn->data == ND_SPACE_TIME)
 561                                 ED_region_tag_redraw(ar);
 562                         break;
 563         }
 564 }
 565
 566 /* ******************** default callbacks for time space ***************** */
 567
 568 static SpaceLink *time_new(const bContext *C)
 569 {
 570         Scene *scene= CTX_data_scene(C);
 571         ARegion *ar;
 572         SpaceTime *stime;
 573
 574         stime= MEM_callocN(sizeof(SpaceTime), "inittime");
 575
 576         stime->spacetype= SPACE_TIME;
 577         stime->redraws= TIME_ALL_3D_WIN|TIME_ALL_ANIM_WIN; // XXX: depreceated
 578         stime->flag |= TIME_DRAWFRAMES;
 579
 580         /* header */
 581         ar= MEM_callocN(sizeof(ARegion), "header for time");
 582
 583         BLI_addtail(&stime->regionbase, ar);
 584         ar->regiontype= RGN_TYPE_HEADER;
 585         ar->alignment= RGN_ALIGN_BOTTOM;
 586
 587         /* main area */
 588         ar= MEM_callocN(sizeof(ARegion), "main area for time");
 589
 590         BLI_addtail(&stime->regionbase, ar);
 591         ar->regiontype= RGN_TYPE_WINDOW;
 592
 593         ar->v2d.tot.xmin= (float)(SFRA - 4);
 594         ar->v2d.tot.ymin= 0.0f;
 595         ar->v2d.tot.xmax= (float)(EFRA + 4);
 596         ar->v2d.tot.ymax= 50.0f;
 597
 598         ar->v2d.cur= ar->v2d.tot;
 599
 600         ar->v2d.min[0]= 1.0f;
 601         ar->v2d.min[1]= 50.0f;
 602
 603         ar->v2d.max[0]= MAXFRAMEF;
 604         ar->v2d.max[1]= 50.0;
 605
 606         ar->v2d.minzoom= 0.1f;
 607         ar->v2d.maxzoom= 10.0;
 608
 609         ar->v2d.scroll |= (V2D_SCROLL_BOTTOM|V2D_SCROLL_SCALE_HORIZONTAL);
 610         ar->v2d.align |= V2D_ALIGN_NO_NEG_Y;
 611         ar->v2d.keepofs |= V2D_LOCKOFS_Y;
 612         ar->v2d.keepzoom |= V2D_LOCKZOOM_Y;
 613
 614
 615         return (SpaceLink*)stime;
 616 }
 617
 618 /* not spacelink itself */
 619 static void time_free(SpaceLink *sl)
 620 {
 621         SpaceTime *stime= (SpaceTime *)sl;
 622
 623         time_cache_free(stime);
 624 }
 625 /* spacetype; init callback in ED_area_initialize() */
 626 /* init is called to (re)initialize an existing editor (file read, screen changes) */
 627 /* validate spacedata, add own area level handlers */
 628 static void time_init(wmWindowManager *UNUSED(wm), ScrArea *sa)
 629 {
 630         SpaceTime *stime= (SpaceTime *)sa->spacedata.first;
 631
 632         time_cache_free(stime);
 633
 634         /* enable all cache display */
 635         stime->cache_display |= TIME_CACHE_DISPLAY;
 636         stime->cache_display |= (TIME_CACHE_SOFTBODY|TIME_CACHE_PARTICLES);
 637         stime->cache_display |= (TIME_CACHE_CLOTH|TIME_CACHE_SMOKE);
 638 }
 639
 640 static SpaceLink *time_duplicate(SpaceLink *sl)
 641 {
 642         SpaceTime *stime= (SpaceTime *)sl;
 643         SpaceTime *stimen= MEM_dupallocN(stime);
 644
 645         stimen->caches.first = stimen->caches.last = NULL;
 646
 647         return (SpaceLink *)stimen;
 648 }
 649
 650 /* only called once, from space_api/spacetypes.c */
 651 /* it defines all callbacks to maintain spaces */
 652 void ED_spacetype_time(void)
 653 {
 654         SpaceType *st= MEM_callocN(sizeof(SpaceType), "spacetype time");
 655         ARegionType *art;
 656
 657         st->spaceid= SPACE_TIME;
 658         strncpy(st->name, "Timeline", BKE_ST_MAXNAME);
 659
 660         st->new= time_new;
 661         st->free= time_free;
 662         st->init= time_init;
 663         st->duplicate= time_duplicate;
 664         st->operatortypes= time_operatortypes;
 665         st->keymap= NULL;
 666         st->listener= time_listener;
 667         st->refresh= time_refresh;
 668
 669         /* regions: main window */
 670         art= MEM_callocN(sizeof(ARegionType), "spacetype time region");
 671         art->regionid = RGN_TYPE_WINDOW;
 672         art->keymapflag= ED_KEYMAP_VIEW2D|ED_KEYMAP_MARKERS|ED_KEYMAP_ANIMATION|ED_KEYMAP_FRAMES;
 673
 674         art->init= time_main_area_init;
 675         art->draw= time_main_area_draw;
 676         art->listener= time_main_area_listener;
 677         art->keymap= time_keymap;
 678         BLI_addhead(&st->regiontypes, art);
 679
 680         /* regions: header */
 681         art= MEM_callocN(sizeof(ARegionType), "spacetype time region");
 682         art->regionid = RGN_TYPE_HEADER;
 683         art->prefsizey= HEADERY;
 684         art->keymapflag= ED_KEYMAP_UI|ED_KEYMAP_VIEW2D|ED_KEYMAP_FRAMES|ED_KEYMAP_HEADER;
 685
 686         art->init= time_header_area_init;
 687         art->draw= time_header_area_draw;
 688         art->listener= time_header_area_listener;
 689         BLI_addhead(&st->regiontypes, art);
 690
 691         BKE_spacetype_register(st);
 692 }
 693