source/blender/editors/space_graph/space_graph.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_graph/space_graph.c
  28  *  \ingroup spgraph
  29  */
  30
  31
  32 #include <string.h>
  33 #include <stdio.h>
  34
  35 #include "DNA_anim_types.h"
  36 #include "DNA_scene_types.h"
  37
  38 #include "MEM_guardedalloc.h"
  39
  40 #include "BLI_blenlib.h"
  41 #include "BLI_math.h"
  42 #include "BLI_rand.h"
  43 #include "BLI_utildefines.h"
  44
  45 #include "BKE_context.h"
  46 #include "BKE_global.h"
  47 #include "BKE_main.h"
  48 #include "BKE_fcurve.h"
  49 #include "BKE_screen.h"
  50
  51 #include "ED_space_api.h"
  52 #include "ED_screen.h"
  53 #include "ED_anim_api.h"
  54 #include "ED_markers.h"
  55
  56 #include "BIF_gl.h"
  57
  58 #include "WM_api.h"
  59 #include "WM_types.h"
  60
  61 #include "UI_resources.h"
  62 #include "UI_view2d.h"
  63
  64 #include "graph_intern.h"   // own include
  65
  66 /* ******************** manage regions ********************* */
  67
  68 ARegion *graph_has_buttons_region(ScrArea *sa)
  69 {
  70         ARegion *ar, *arnew;
  71
  72         ar = BKE_area_find_region_type(sa, RGN_TYPE_UI);
  73         if (ar) return ar;
  74
  75         /* add subdiv level; after main */
  76         ar = BKE_area_find_region_type(sa, RGN_TYPE_WINDOW);
  77
  78         /* is error! */
  79         if (ar == NULL) return NULL;
  80
  81         arnew = MEM_callocN(sizeof(ARegion), "buttons for graph");
  82
  83         BLI_insertlinkafter(&sa->regionbase, ar, arnew);
  84         arnew->regiontype = RGN_TYPE_UI;
  85         arnew->alignment = RGN_ALIGN_RIGHT;
  86
  87         arnew->flag = RGN_FLAG_HIDDEN;
  88
  89         return arnew;
  90 }
  91
  92
  93 /* ******************** default callbacks for ipo space ***************** */
  94
  95 static SpaceLink *graph_new(const bContext *C)
  96 {
  97         Scene *scene = CTX_data_scene(C);
  98         ARegion *ar;
  99         SpaceIpo *sipo;
 100
 101         /* Graph Editor - general stuff */
 102         sipo = MEM_callocN(sizeof(SpaceIpo), "init graphedit");
 103         sipo->spacetype = SPACE_IPO;
 104
 105         sipo->autosnap = SACTSNAP_FRAME;
 106
 107         /* allocate DopeSheet data for Graph Editor */
 108         sipo->ads = MEM_callocN(sizeof(bDopeSheet), "GraphEdit DopeSheet");
 109         sipo->ads->source = (ID *)scene;
 110
 111         /* settings for making it easier by default to just see what you're interested in tweaking */
 112         sipo->ads->filterflag |= ADS_FILTER_ONLYSEL;
 113         sipo->flag |= SIPO_SELVHANDLESONLY;
 114
 115         /* header */
 116         ar = MEM_callocN(sizeof(ARegion), "header for graphedit");
 117
 118         BLI_addtail(&sipo->regionbase, ar);
 119         ar->regiontype = RGN_TYPE_HEADER;
 120         ar->alignment = RGN_ALIGN_BOTTOM;
 121
 122         /* channels */
 123         ar = MEM_callocN(sizeof(ARegion), "channels area for graphedit");
 124
 125         BLI_addtail(&sipo->regionbase, ar);
 126         ar->regiontype = RGN_TYPE_CHANNELS;
 127         ar->alignment = RGN_ALIGN_LEFT;
 128
 129         ar->v2d.scroll = (V2D_SCROLL_RIGHT | V2D_SCROLL_BOTTOM);
 130
 131         /* ui buttons */
 132         ar = MEM_callocN(sizeof(ARegion), "buttons area for graphedit");
 133
 134         BLI_addtail(&sipo->regionbase, ar);
 135         ar->regiontype = RGN_TYPE_UI;
 136         ar->alignment = RGN_ALIGN_RIGHT;
 137         ar->flag = RGN_FLAG_HIDDEN;
 138
 139         /* main area */
 140         ar = MEM_callocN(sizeof(ARegion), "main area for graphedit");
 141
 142         BLI_addtail(&sipo->regionbase, ar);
 143         ar->regiontype = RGN_TYPE_WINDOW;
 144
 145         ar->v2d.tot.xmin = 0.0f;
 146         ar->v2d.tot.ymin = (float)scene->r.sfra - 10.0f;
 147         ar->v2d.tot.xmax = (float)scene->r.efra;
 148         ar->v2d.tot.ymax = 10.0f;
 149
 150         ar->v2d.cur = ar->v2d.tot;
 151
 152         ar->v2d.min[0] = FLT_MIN;
 153         ar->v2d.min[1] = FLT_MIN;
 154
 155         ar->v2d.max[0] = MAXFRAMEF;
 156         ar->v2d.max[1] = FLT_MAX;
 157
 158         ar->v2d.scroll = (V2D_SCROLL_BOTTOM | V2D_SCROLL_SCALE_HORIZONTAL);
 159         ar->v2d.scroll |= (V2D_SCROLL_LEFT | V2D_SCROLL_SCALE_VERTICAL);
 160
 161         ar->v2d.keeptot = 0;
 162
 163         return (SpaceLink *)sipo;
 164 }
 165
 166 /* not spacelink itself */
 167 static void graph_free(SpaceLink *sl)
 168 {
 169         SpaceIpo *si = (SpaceIpo *)sl;
 170
 171         if (si->ads) {
 172                 BLI_freelistN(&si->ads->chanbase);
 173                 MEM_freeN(si->ads);
 174         }
 175
 176         if (si->ghostCurves.first)
 177                 free_fcurves(&si->ghostCurves);
 178 }
 179
 180
 181 /* spacetype; init callback */
 182 static void graph_init(struct wmWindowManager *UNUSED(wm), ScrArea *sa)
 183 {
 184         SpaceIpo *sipo = (SpaceIpo *)sa->spacedata.first;
 185
 186         /* init dopesheet data if non-existant (i.e. for old files) */
 187         if (sipo->ads == NULL) {
 188                 sipo->ads = MEM_callocN(sizeof(bDopeSheet), "GraphEdit DopeSheet");
 189                 sipo->ads->source = (ID *)(G.main->scene.first); // FIXME: this is a really nasty hack here for now...
 190         }
 191
 192         /* force immediate init of any invalid F-Curve colors */
 193         sipo->flag |= SIPO_TEMP_NEEDCHANSYNC;
 194         ED_area_tag_refresh(sa);
 195 }
 196
 197 static SpaceLink *graph_duplicate(SpaceLink *sl)
 198 {
 199         SpaceIpo *sipon = MEM_dupallocN(sl);
 200
 201         /* clear or remove stuff from old */
 202         BLI_duplicatelist(&sipon->ghostCurves, &((SpaceIpo *)sl)->ghostCurves);
 203         sipon->ads = MEM_dupallocN(sipon->ads);
 204
 205         return (SpaceLink *)sipon;
 206 }
 207
 208 /* add handlers, stuff you only do once or on area/region changes */
 209 static void graph_main_area_init(wmWindowManager *wm, ARegion *ar)
 210 {
 211         wmKeyMap *keymap;
 212
 213         UI_view2d_region_reinit(&ar->v2d, V2D_COMMONVIEW_CUSTOM, ar->winx, ar->winy);
 214
 215         /* own keymap */
 216         keymap = WM_keymap_find(wm->defaultconf, "Graph Editor", SPACE_IPO, 0);
 217         WM_event_add_keymap_handler_bb(&ar->handlers, keymap, &ar->v2d.mask, &ar->winrct);
 218         keymap = WM_keymap_find(wm->defaultconf, "Graph Editor Generic", SPACE_IPO, 0);
 219         WM_event_add_keymap_handler(&ar->handlers, keymap);
 220 }
 221
 222 static void graph_main_area_draw(const bContext *C, ARegion *ar)
 223 {
 224         /* draw entirely, view changes should be handled here */
 225         SpaceIpo *sipo = CTX_wm_space_graph(C);
 226         bAnimContext ac;
 227         View2D *v2d = &ar->v2d;
 228         View2DGrid *grid;
 229         View2DScrollers *scrollers;
 230         float col[3];
 231         short unitx = 0, unity = V2D_UNIT_VALUES, flag = 0;
 232
 233         /* clear and setup matrix */
 234         UI_GetThemeColor3fv(TH_BACK, col);
 235         glClearColor(col[0], col[1], col[2], 0.0);
 236         glClear(GL_COLOR_BUFFER_BIT);
 237
 238         UI_view2d_view_ortho(v2d);
 239
 240         /* grid */
 241         unitx = (sipo->flag & SIPO_DRAWTIME) ? V2D_UNIT_SECONDS : V2D_UNIT_FRAMESCALE;
 242         grid = UI_view2d_grid_calc(CTX_data_scene(C), v2d, unitx, V2D_GRID_NOCLAMP, unity, V2D_GRID_NOCLAMP, ar->winx, ar->winy);
 243         UI_view2d_grid_draw(v2d, grid, V2D_GRIDLINES_ALL);
 244
 245         /* draw data */
 246         if (ANIM_animdata_get_context(C, &ac)) {
 247                 /* draw ghost curves */
 248                 graph_draw_ghost_curves(&ac, sipo, ar);
 249
 250                 /* draw curves twice - unselected, then selected, so that the are fewer occlusion problems */
 251                 graph_draw_curves(&ac, sipo, ar, grid, 0);
 252                 graph_draw_curves(&ac, sipo, ar, grid, 1);
 253
 254                 /* XXX the slow way to set tot rect... but for nice sliders needed (ton) */
 255                 get_graph_keyframe_extents(&ac, &v2d->tot.xmin, &v2d->tot.xmax, &v2d->tot.ymin, &v2d->tot.ymax, FALSE, TRUE);
 256                 /* extra offset so that these items are visible */
 257                 v2d->tot.xmin -= 10.0f;
 258                 v2d->tot.xmax += 10.0f;
 259         }
 260
 261         /* only free grid after drawing data, as we need to use it to determine sampling rate */
 262         UI_view2d_grid_free(grid);
 263
 264         /* horizontal component of value-cursor (value line before the current frame line) */
 265         if ((sipo->flag & SIPO_NODRAWCURSOR) == 0) {
 266                 float vec[2];
 267
 268                 /* Draw a green line to indicate the cursor value */
 269                 vec[1] = sipo->cursorVal;
 270
 271                 UI_ThemeColorShadeAlpha(TH_CFRAME, -10, -50);
 272                 glLineWidth(2.0);
 273
 274                 glEnable(GL_BLEND);
 275                 glBegin(GL_LINE_STRIP);
 276                 vec[0] = v2d->cur.xmin;
 277                 glVertex2fv(vec);
 278
 279                 vec[0] = v2d->cur.xmax;
 280                 glVertex2fv(vec);
 281                 glEnd(); // GL_LINE_STRIP
 282                 glDisable(GL_BLEND);
 283         }
 284
 285         /* current frame */
 286         if (sipo->flag & SIPO_DRAWTIME) flag |= DRAWCFRA_UNIT_SECONDS;
 287         if ((sipo->flag & SIPO_NODRAWCFRANUM) == 0) flag |= DRAWCFRA_SHOW_NUMBOX;
 288         ANIM_draw_cfra(C, v2d, flag);
 289
 290         /* markers */
 291         UI_view2d_view_orthoSpecial(ar, v2d, 1);
 292         draw_markers_time(C, 0);
 293
 294         /* preview range */
 295         UI_view2d_view_ortho(v2d);
 296         ANIM_draw_previewrange(C, v2d);
 297
 298         /* reset view matrix */
 299         UI_view2d_view_restore(C);
 300
 301         /* scrollers */
 302         // FIXME: args for scrollers depend on the type of data being shown...
 303         scrollers = UI_view2d_scrollers_calc(C, v2d, unitx, V2D_GRID_NOCLAMP, unity, V2D_GRID_NOCLAMP);
 304         UI_view2d_scrollers_draw(C, v2d, scrollers);
 305         UI_view2d_scrollers_free(scrollers);
 306 }
 307
 308 static void graph_channel_area_init(wmWindowManager *wm, ARegion *ar)
 309 {
 310         wmKeyMap *keymap;
 311
 312         /* make sure we keep the hide flags */
 313         ar->v2d.scroll |= (V2D_SCROLL_RIGHT | V2D_SCROLL_BOTTOM);
 314         ar->v2d.scroll &= ~(V2D_SCROLL_LEFT | V2D_SCROLL_TOP);  /* prevent any noise of past */
 315         ar->v2d.scroll |= V2D_SCROLL_HORIZONTAL_HIDE;
 316         ar->v2d.scroll |= V2D_SCROLL_VERTICAL_HIDE;
 317
 318         UI_view2d_region_reinit(&ar->v2d, V2D_COMMONVIEW_LIST, ar->winx, ar->winy);
 319
 320         /* own keymap */
 321         keymap = WM_keymap_find(wm->defaultconf, "Animation Channels", 0, 0);
 322         WM_event_add_keymap_handler_bb(&ar->handlers, keymap, &ar->v2d.mask, &ar->winrct);
 323         keymap = WM_keymap_find(wm->defaultconf, "Graph Editor Generic", SPACE_IPO, 0);
 324         WM_event_add_keymap_handler(&ar->handlers, keymap);
 325 }
 326
 327 static void graph_channel_area_draw(const bContext *C, ARegion *ar)
 328 {
 329         bAnimContext ac;
 330         View2D *v2d = &ar->v2d;
 331         View2DScrollers *scrollers;
 332         float col[3];
 333
 334         /* clear and setup matrix */
 335         UI_GetThemeColor3fv(TH_BACK, col);
 336         glClearColor(col[0], col[1], col[2], 0.0);
 337         glClear(GL_COLOR_BUFFER_BIT);
 338
 339         UI_view2d_view_ortho(v2d);
 340
 341         /* draw channels */
 342         if (ANIM_animdata_get_context(C, &ac)) {
 343                 graph_draw_channel_names((bContext *)C, &ac, ar);
 344         }
 345
 346         /* reset view matrix */
 347         UI_view2d_view_restore(C);
 348
 349         /* scrollers */
 350         scrollers = UI_view2d_scrollers_calc(C, v2d, V2D_ARG_DUMMY, V2D_ARG_DUMMY, V2D_ARG_DUMMY, V2D_ARG_DUMMY);
 351         UI_view2d_scrollers_draw(C, v2d, scrollers);
 352         UI_view2d_scrollers_free(scrollers);
 353 }
 354
 355 /* add handlers, stuff you only do once or on area/region changes */
 356 static void graph_header_area_init(wmWindowManager *UNUSED(wm), ARegion *ar)
 357 {
 358         ED_region_header_init(ar);
 359 }
 360
 361 static void graph_header_area_draw(const bContext *C, ARegion *ar)
 362 {
 363         ED_region_header(C, ar);
 364 }
 365
 366 /* add handlers, stuff you only do once or on area/region changes */
 367 static void graph_buttons_area_init(wmWindowManager *wm, ARegion *ar)
 368 {
 369         wmKeyMap *keymap;
 370
 371         ED_region_panels_init(wm, ar);
 372
 373         keymap = WM_keymap_find(wm->defaultconf, "Graph Editor Generic", SPACE_IPO, 0);
 374         WM_event_add_keymap_handler_bb(&ar->handlers, keymap, &ar->v2d.mask, &ar->winrct);
 375 }
 376
 377 static void graph_buttons_area_draw(const bContext *C, ARegion *ar)
 378 {
 379         ED_region_panels(C, ar, 1, NULL, -1);
 380 }
 381
 382 static void graph_region_listener(ARegion *ar, wmNotifier *wmn)
 383 {
 384         /* context changes */
 385         switch (wmn->category) {
 386                 case NC_ANIMATION:
 387                         ED_region_tag_redraw(ar);
 388                         break;
 389                 case NC_SCENE:
 390                         switch (wmn->data) {
 391                                 case ND_RENDER_OPTIONS:
 392                                 case ND_OB_ACTIVE:
 393                                 case ND_FRAME:
 394                                 case ND_MARKERS:
 395                                         ED_region_tag_redraw(ar);
 396                                         break;
 397                                 case ND_SEQUENCER:
 398                                         if (wmn->action == NA_SELECTED)
 399                                                 ED_region_tag_redraw(ar);
 400                                         break;
 401                         }
 402                         break;
 403                 case NC_OBJECT:
 404                         switch (wmn->data) {
 405                                 case ND_BONE_ACTIVE:
 406                                 case ND_BONE_SELECT:
 407                                 case ND_KEYS:
 408                                         ED_region_tag_redraw(ar);
 409                                         break;
 410                                 case ND_MODIFIER:
 411                                         if (wmn->action == NA_RENAME)
 412                                                 ED_region_tag_redraw(ar);
 413                                         break;
 414                         }
 415                         break;
 416                 case NC_NODE:
 417                         switch (wmn->action) {
 418                                 case NA_EDITED:
 419                                 case NA_SELECTED:
 420                                         ED_region_tag_redraw(ar);
 421                                         break;
 422                         }
 423                         break;
 424                 case NC_ID:
 425                         if (wmn->action == NA_RENAME)
 426                                 ED_region_tag_redraw(ar);
 427                         break;
 428                 default:
 429                         if (wmn->data == ND_KEYS)
 430                                 ED_region_tag_redraw(ar);
 431
 432         }
 433 }
 434
 435 /* editor level listener */
 436 static void graph_listener(ScrArea *sa, wmNotifier *wmn)
 437 {
 438         SpaceIpo *sipo = (SpaceIpo *)sa->spacedata.first;
 439
 440         /* context changes */
 441         switch (wmn->category) {
 442                 case NC_ANIMATION:
 443                         /* for selection changes of animation data, we can just redraw... otherwise autocolor might need to be done again */
 444                         if (ELEM(wmn->data, ND_KEYFRAME, ND_ANIMCHAN) && (wmn->action == NA_SELECTED))
 445                                 ED_area_tag_redraw(sa);
 446                         else
 447                                 ED_area_tag_refresh(sa);
 448                         break;
 449                 case NC_SCENE:
 450                         switch (wmn->data) {
 451                                 case ND_OB_ACTIVE:  /* selection changed, so force refresh to flush (needs flag set to do syncing)  */
 452                                 case ND_OB_SELECT:
 453                                         sipo->flag |= SIPO_TEMP_NEEDCHANSYNC;
 454                                         ED_area_tag_refresh(sa);
 455                                         break;
 456
 457                                 default: /* just redrawing the view will do */
 458                                         ED_area_tag_redraw(sa);
 459                                         break;
 460                         }
 461                         break;
 462                 case NC_OBJECT:
 463                         switch (wmn->data) {
 464                                 case ND_BONE_SELECT:    /* selection changed, so force refresh to flush (needs flag set to do syncing) */
 465                                 case ND_BONE_ACTIVE:
 466                                         sipo->flag |= SIPO_TEMP_NEEDCHANSYNC;
 467                                         ED_area_tag_refresh(sa);
 468                                         break;
 469                                 case ND_TRANSFORM:
 470                                         break; /*do nothing*/
 471
 472                                 default: /* just redrawing the view will do */
 473                                         ED_area_tag_redraw(sa);
 474                                         break;
 475                         }
 476                         break;
 477                 case NC_NODE:
 478                         if (wmn->action == NA_SELECTED) {
 479                                 /* selection changed, so force refresh to flush (needs flag set to do syncing) */
 480                                 sipo->flag |= SIPO_TEMP_NEEDCHANSYNC;
 481                                 ED_area_tag_refresh(sa);
 482                         }
 483                         break;
 484                 case NC_SPACE:
 485                         if (wmn->data == ND_SPACE_GRAPH)
 486                                 ED_area_tag_redraw(sa);
 487                         break;
 488                 case NC_WINDOW:
 489                         if (sipo->flag & SIPO_TEMP_NEEDCHANSYNC) {
 490                                 /* force redraw/refresh after undo/redo - prevents "black curve" problem */
 491                                 ED_area_tag_refresh(sa);
 492                         }
 493                         break;
 494
 495                         // XXX: restore the case below if not enough updates occur...
 496                         //default:
 497                         //      if (wmn->data == ND_KEYS)
 498                         //              ED_area_tag_redraw(sa);
 499         }
 500 }
 501
 502
 503
 504 static void graph_refresh(const bContext *C, ScrArea *sa)
 505 {
 506         SpaceIpo *sipo = (SpaceIpo *)sa->spacedata.first;
 507         bAnimContext ac;
 508
 509         /* updates to data needed depends on Graph Editor mode... */
 510         switch (sipo->mode) {
 511                 case SIPO_MODE_ANIMATION: /* all animation */
 512                 {
 513
 514                 }
 515                 break;
 516
 517                 case SIPO_MODE_DRIVERS: /* drivers only  */
 518                 {
 519
 520                 }
 521                 break;
 522         }
 523
 524         /* region updates? */
 525         // XXX re-sizing y-extents of tot should go here?
 526
 527         /* update the state of the animchannels in response to changes from the data they represent
 528          * NOTE: the temp flag is used to indicate when this needs to be done, and will be cleared once handled
 529          */
 530         if (sipo->flag & SIPO_TEMP_NEEDCHANSYNC) {
 531                 ANIM_sync_animchannels_to_data(C);
 532                 sipo->flag &= ~SIPO_TEMP_NEEDCHANSYNC;
 533                 ED_area_tag_redraw(sa);
 534         }
 535
 536         /* init/adjust F-Curve colors */
 537         if (ANIM_animdata_get_context(C, &ac)) {
 538                 ListBase anim_data = {NULL, NULL};
 539                 bAnimListElem *ale;
 540                 size_t items;
 541                 int filter;
 542                 int i;
 543
 544                 /* build list of F-Curves which will be visible as channels in channel-region
 545                  *  - we don't include ANIMFILTER_CURVEVISIBLE filter, as that will result in a
 546                  *    mismatch between channel-colors and the drawn curves
 547                  */
 548                 filter = (ANIMFILTER_DATA_VISIBLE | ANIMFILTER_NODUPLIS);
 549                 items = ANIM_animdata_filter(&ac, &anim_data, filter, ac.data, ac.datatype);
 550
 551                 /* loop over F-Curves, assigning colors */
 552                 for (ale = anim_data.first, i = 0; ale; ale = ale->next, i++) {
 553                         FCurve *fcu = (FCurve *)ale->data;
 554
 555                         /* set color of curve here */
 556                         switch (fcu->color_mode) {
 557                                 case FCURVE_COLOR_CUSTOM:
 558                                         /* User has defined a custom color for this curve already (we assume it's not going to cause clashes with text colors),
 559                                          * which should be left alone... Nothing needs to be done here.
 560                                          */
 561                                         break;
 562
 563                                 case FCURVE_COLOR_AUTO_RGB:
 564                                 {
 565                                         /* F-Curve's array index is automatically mapped to RGB values. This works best of 3-value vectors.
 566                                          * TODO: find a way to module the hue so that not all curves have same color...
 567                                          */
 568                                         float *col = fcu->color;
 569
 570                                         switch (fcu->array_index) {
 571                                                 case 0:
 572                                                         UI_GetThemeColor3fv(TH_AXIS_X, col);
 573                                                         break;
 574                                                 case 1:
 575                                                         UI_GetThemeColor3fv(TH_AXIS_Y, col);
 576                                                         break;
 577                                                 case 2:
 578                                                         UI_GetThemeColor3fv(TH_AXIS_Z, col);
 579                                                         break;
 580                                                 default:
 581                                                         /* 'unknown' color - bluish so as to not conflict with handles */
 582                                                         col[0] = 0.3f; col[1] = 0.8f; col[2] = 1.0f;
 583                                                         break;
 584                                         }
 585                                 }
 586                                 break;
 587
 588                                 case FCURVE_COLOR_AUTO_RAINBOW:
 589                                 default:
 590                                 {
 591                                         /* determine color 'automatically' using 'magic function' which uses the given args
 592                                          * of current item index + total items to determine some RGB color
 593                                          */
 594                                         getcolor_fcurve_rainbow(i, items, fcu->color);
 595                                 }
 596                                 break;
 597                         }
 598                 }
 599
 600                 /* free temp list */
 601                 BLI_freelistN(&anim_data);
 602         }
 603 }
 604
 605 /* only called once, from space/spacetypes.c */
 606 void ED_spacetype_ipo(void)
 607 {
 608         SpaceType *st = MEM_callocN(sizeof(SpaceType), "spacetype ipo");
 609         ARegionType *art;
 610
 611         st->spaceid = SPACE_IPO;
 612         strncpy(st->name, "Graph", BKE_ST_MAXNAME);
 613
 614         st->new = graph_new;
 615         st->free = graph_free;
 616         st->init = graph_init;
 617         st->duplicate = graph_duplicate;
 618         st->operatortypes = graphedit_operatortypes;
 619         st->keymap = graphedit_keymap;
 620         st->listener = graph_listener;
 621         st->refresh = graph_refresh;
 622
 623         /* regions: main window */
 624         art = MEM_callocN(sizeof(ARegionType), "spacetype graphedit region");
 625         art->regionid = RGN_TYPE_WINDOW;
 626         art->init = graph_main_area_init;
 627         art->draw = graph_main_area_draw;
 628         art->listener = graph_region_listener;
 629         art->keymapflag = ED_KEYMAP_VIEW2D | ED_KEYMAP_MARKERS | ED_KEYMAP_ANIMATION | ED_KEYMAP_FRAMES;
 630
 631         BLI_addhead(&st->regiontypes, art);
 632
 633         /* regions: header */
 634         art = MEM_callocN(sizeof(ARegionType), "spacetype graphedit region");
 635         art->regionid = RGN_TYPE_HEADER;
 636         art->prefsizey = HEADERY;
 637         art->keymapflag = ED_KEYMAP_UI | ED_KEYMAP_VIEW2D | ED_KEYMAP_FRAMES | ED_KEYMAP_HEADER;
 638         art->listener = graph_region_listener;
 639         art->init = graph_header_area_init;
 640         art->draw = graph_header_area_draw;
 641
 642         BLI_addhead(&st->regiontypes, art);
 643
 644         /* regions: channels */
 645         art = MEM_callocN(sizeof(ARegionType), "spacetype graphedit region");
 646         art->regionid = RGN_TYPE_CHANNELS;
 647         art->prefsizex = 200 + V2D_SCROLL_WIDTH; /* 200 is the 'standard', but due to scrollers, we want a bit more to fit the lock icons in */
 648         art->keymapflag = ED_KEYMAP_UI | ED_KEYMAP_VIEW2D | ED_KEYMAP_FRAMES;
 649         art->listener = graph_region_listener;
 650         art->init = graph_channel_area_init;
 651         art->draw = graph_channel_area_draw;
 652
 653         BLI_addhead(&st->regiontypes, art);
 654
 655         /* regions: UI buttons */
 656         art = MEM_callocN(sizeof(ARegionType), "spacetype graphedit region");
 657         art->regionid = RGN_TYPE_UI;
 658         art->prefsizex = 200;
 659         art->keymapflag = ED_KEYMAP_UI;
 660         art->listener = graph_region_listener;
 661         art->init = graph_buttons_area_init;
 662         art->draw = graph_buttons_area_draw;
 663
 664         BLI_addhead(&st->regiontypes, art);
 665
 666         graph_buttons_register(art);
 667
 668         BKE_spacetype_register(st);
 669 }
 670