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_utildefines.h"
  43
  44 #include "BKE_context.h"
  45 #include "BKE_global.h"
  46 #include "BKE_main.h"
  47 #include "BKE_fcurve.h"
  48 #include "BKE_screen.h"
  49
  50 #include "ED_space_api.h"
  51 #include "ED_screen.h"
  52 #include "ED_anim_api.h"
  53 #include "ED_markers.h"
  54
  55 #include "BIF_gl.h"
  56
  57 #include "WM_api.h"
  58 #include "WM_types.h"
  59
  60 #include "UI_resources.h"
  61 #include "UI_view2d.h"
  62
  63 #include "graph_intern.h"   // own include
  64
  65 /* ******************** manage regions ********************* */
  66
  67 ARegion *graph_has_buttons_region(ScrArea *sa)
  68 {
  69         ARegion *ar, *arnew;
  70
  71         ar = BKE_area_find_region_type(sa, RGN_TYPE_UI);
  72         if (ar) return ar;
  73
  74         /* add subdiv level; after main */
  75         ar = BKE_area_find_region_type(sa, RGN_TYPE_WINDOW);
  76
  77         /* is error! */
  78         if (ar == NULL) return NULL;
  79
  80         arnew = MEM_callocN(sizeof(ARegion), "buttons for graph");
  81
  82         BLI_insertlinkafter(&sa->regionbase, ar, arnew);
  83         arnew->regiontype = RGN_TYPE_UI;
  84         arnew->alignment = RGN_ALIGN_RIGHT;
  85
  86         arnew->flag = RGN_FLAG_HIDDEN;
  87
  88         return arnew;
  89 }
  90
  91
  92 /* ******************** default callbacks for ipo space ***************** */
  93
  94 static SpaceLink *graph_new(const bContext *C)
  95 {
  96         Scene *scene = CTX_data_scene(C);
  97         ARegion *ar;
  98         SpaceIpo *sipo;
  99
 100         /* Graph Editor - general stuff */
 101         sipo = MEM_callocN(sizeof(SpaceIpo), "init graphedit");
 102         sipo->spacetype = SPACE_IPO;
 103
 104         sipo->autosnap = SACTSNAP_FRAME;
 105
 106         /* allocate DopeSheet data for Graph Editor */
 107         sipo->ads = MEM_callocN(sizeof(bDopeSheet), "GraphEdit DopeSheet");
 108         sipo->ads->source = (ID *)scene;
 109
 110         /* settings for making it easier by default to just see what you're interested in tweaking */
 111         sipo->ads->filterflag |= ADS_FILTER_ONLYSEL;
 112         sipo->flag |= SIPO_SELVHANDLESONLY;
 113
 114         /* header */
 115         ar = MEM_callocN(sizeof(ARegion), "header for graphedit");
 116
 117         BLI_addtail(&sipo->regionbase, ar);
 118         ar->regiontype = RGN_TYPE_HEADER;
 119         ar->alignment = RGN_ALIGN_BOTTOM;
 120
 121         /* channels */
 122         ar = MEM_callocN(sizeof(ARegion), "channels area for graphedit");
 123
 124         BLI_addtail(&sipo->regionbase, ar);
 125         ar->regiontype = RGN_TYPE_CHANNELS;
 126         ar->alignment = RGN_ALIGN_LEFT;
 127
 128         ar->v2d.scroll = (V2D_SCROLL_RIGHT | V2D_SCROLL_BOTTOM);
 129
 130         /* ui buttons */
 131         ar = MEM_callocN(sizeof(ARegion), "buttons area for graphedit");
 132
 133         BLI_addtail(&sipo->regionbase, ar);
 134         ar->regiontype = RGN_TYPE_UI;
 135         ar->alignment = RGN_ALIGN_RIGHT;
 136         ar->flag = RGN_FLAG_HIDDEN;
 137
 138         /* main area */
 139         ar = MEM_callocN(sizeof(ARegion), "main area for graphedit");
 140
 141         BLI_addtail(&sipo->regionbase, ar);
 142         ar->regiontype = RGN_TYPE_WINDOW;
 143
 144         ar->v2d.tot.xmin = 0.0f;
 145         ar->v2d.tot.ymin = (float)scene->r.sfra - 10.0f;
 146         ar->v2d.tot.xmax = (float)scene->r.efra;
 147         ar->v2d.tot.ymax = 10.0f;
 148
 149         ar->v2d.cur = ar->v2d.tot;
 150
 151         ar->v2d.min[0] = FLT_MIN;
 152         ar->v2d.min[1] = FLT_MIN;
 153
 154         ar->v2d.max[0] = MAXFRAMEF;
 155         ar->v2d.max[1] = FLT_MAX;
 156
 157         ar->v2d.scroll = (V2D_SCROLL_BOTTOM | V2D_SCROLL_SCALE_HORIZONTAL);
 158         ar->v2d.scroll |= (V2D_SCROLL_LEFT | V2D_SCROLL_SCALE_VERTICAL);
 159
 160         ar->v2d.keeptot = 0;
 161
 162         return (SpaceLink *)sipo;
 163 }
 164
 165 /* not spacelink itself */
 166 static void graph_free(SpaceLink *sl)
 167 {
 168         SpaceIpo *si = (SpaceIpo *)sl;
 169
 170         if (si->ads) {
 171                 BLI_freelistN(&si->ads->chanbase);
 172                 MEM_freeN(si->ads);
 173         }
 174
 175         if (si->ghostCurves.first)
 176                 free_fcurves(&si->ghostCurves);
 177 }
 178
 179
 180 /* spacetype; init callback */
 181 static void graph_init(struct wmWindowManager *UNUSED(wm), ScrArea *sa)
 182 {
 183         SpaceIpo *sipo = (SpaceIpo *)sa->spacedata.first;
 184
 185         /* init dopesheet data if non-existant (i.e. for old files) */
 186         if (sipo->ads == NULL) {
 187                 sipo->ads = MEM_callocN(sizeof(bDopeSheet), "GraphEdit DopeSheet");
 188                 sipo->ads->source = (ID *)(G.main->scene.first); // FIXME: this is a really nasty hack here for now...
 189         }
 190
 191         /* force immediate init of any invalid F-Curve colors */
 192         sipo->flag |= SIPO_TEMP_NEEDCHANSYNC;
 193         ED_area_tag_refresh(sa);
 194 }
 195
 196 static SpaceLink *graph_duplicate(SpaceLink *sl)
 197 {
 198         SpaceIpo *sipon = MEM_dupallocN(sl);
 199
 200         /* clear or remove stuff from old */
 201         BLI_duplicatelist(&sipon->ghostCurves, &((SpaceIpo *)sl)->ghostCurves);
 202         sipon->ads = MEM_dupallocN(sipon->ads);
 203
 204         return (SpaceLink *)sipon;
 205 }
 206
 207 /* add handlers, stuff you only do once or on area/region changes */
 208 static void graph_main_area_init(wmWindowManager *wm, ARegion *ar)
 209 {
 210         wmKeyMap *keymap;
 211
 212         UI_view2d_region_reinit(&ar->v2d, V2D_COMMONVIEW_CUSTOM, ar->winx, ar->winy);
 213
 214         /* own keymap */
 215         keymap = WM_keymap_find(wm->defaultconf, "Graph Editor", SPACE_IPO, 0);
 216         WM_event_add_keymap_handler_bb(&ar->handlers, keymap, &ar->v2d.mask, &ar->winrct);
 217         keymap = WM_keymap_find(wm->defaultconf, "Graph Editor Generic", SPACE_IPO, 0);
 218         WM_event_add_keymap_handler(&ar->handlers, keymap);
 219 }
 220
 221 static void graph_main_area_draw(const bContext *C, ARegion *ar)
 222 {
 223         /* draw entirely, view changes should be handled here */
 224         SpaceIpo *sipo = CTX_wm_space_graph(C);
 225         bAnimContext ac;
 226         View2D *v2d = &ar->v2d;
 227         View2DGrid *grid;
 228         View2DScrollers *scrollers;
 229         float col[3];
 230         short unitx = 0, unity = V2D_UNIT_VALUES, flag = 0;
 231
 232         /* clear and setup matrix */
 233         UI_GetThemeColor3fv(TH_BACK, col);
 234         glClearColor(col[0], col[1], col[2], 0.0);
 235         glClear(GL_COLOR_BUFFER_BIT);
 236
 237         UI_view2d_view_ortho(v2d);
 238
 239         /* grid */
 240         unitx = (sipo->flag & SIPO_DRAWTIME) ? V2D_UNIT_SECONDS : V2D_UNIT_FRAMESCALE;
 241         grid = UI_view2d_grid_calc(CTX_data_scene(C), v2d, unitx, V2D_GRID_NOCLAMP, unity, V2D_GRID_NOCLAMP, ar->winx, ar->winy);
 242         UI_view2d_grid_draw(v2d, grid, V2D_GRIDLINES_ALL);
 243
 244         ED_region_draw_cb_draw(C, ar, REGION_DRAW_PRE_VIEW);
 245
 246         /* draw data */
 247         if (ANIM_animdata_get_context(C, &ac)) {
 248                 /* draw ghost curves */
 249                 graph_draw_ghost_curves(&ac, sipo, ar);
 250
 251                 /* draw curves twice - unselected, then selected, so that the are fewer occlusion problems */
 252                 graph_draw_curves(&ac, sipo, ar, grid, 0);
 253                 graph_draw_curves(&ac, sipo, ar, grid, 1);
 254
 255                 /* XXX the slow way to set tot rect... but for nice sliders needed (ton) */
 256                 get_graph_keyframe_extents(&ac, &v2d->tot.xmin, &v2d->tot.xmax, &v2d->tot.ymin, &v2d->tot.ymax, FALSE, TRUE);
 257                 /* extra offset so that these items are visible */
 258                 v2d->tot.xmin -= 10.0f;
 259                 v2d->tot.xmax += 10.0f;
 260         }
 261
 262         /* only free grid after drawing data, as we need to use it to determine sampling rate */
 263         UI_view2d_grid_free(grid);
 264
 265         /* horizontal component of value-cursor (value line before the current frame line) */
 266         if ((sipo->flag & SIPO_NODRAWCURSOR) == 0) {
 267                 float vec[2];
 268
 269                 /* Draw a green line to indicate the cursor value */
 270                 vec[1] = sipo->cursorVal;
 271
 272                 UI_ThemeColorShadeAlpha(TH_CFRAME, -10, -50);
 273                 glLineWidth(2.0);
 274
 275                 glEnable(GL_BLEND);
 276                 glBegin(GL_LINE_STRIP);
 277                 vec[0] = v2d->cur.xmin;
 278                 glVertex2fv(vec);
 279
 280                 vec[0] = v2d->cur.xmax;
 281                 glVertex2fv(vec);
 282                 glEnd(); // GL_LINE_STRIP
 283                 glDisable(GL_BLEND);
 284         }
 285
 286         /* current frame */
 287         if (sipo->flag & SIPO_DRAWTIME) flag |= DRAWCFRA_UNIT_SECONDS;
 288         if ((sipo->flag & SIPO_NODRAWCFRANUM) == 0) flag |= DRAWCFRA_SHOW_NUMBOX;
 289         ANIM_draw_cfra(C, v2d, flag);
 290
 291         /* markers */
 292         UI_view2d_view_orthoSpecial(ar, v2d, 1);
 293         draw_markers_time(C, 0);
 294
 295         /* preview range */
 296         UI_view2d_view_ortho(v2d);
 297         ANIM_draw_previewrange(C, v2d, 0);
 298
 299         /* callback */
 300         UI_view2d_view_ortho(v2d);
 301         ED_region_draw_cb_draw(C, ar, REGION_DRAW_POST_VIEW);
 302
 303         /* reset view matrix */
 304         UI_view2d_view_restore(C);
 305
 306         /* scrollers */
 307         // FIXME: args for scrollers depend on the type of data being shown...
 308         scrollers = UI_view2d_scrollers_calc(C, v2d, unitx, V2D_GRID_NOCLAMP, unity, V2D_GRID_NOCLAMP);
 309         UI_view2d_scrollers_draw(C, v2d, scrollers);
 310         UI_view2d_scrollers_free(scrollers);
 311 }
 312
 313 static void graph_channel_area_init(wmWindowManager *wm, ARegion *ar)
 314 {
 315         wmKeyMap *keymap;
 316
 317         /* make sure we keep the hide flags */
 318         ar->v2d.scroll |= (V2D_SCROLL_RIGHT | V2D_SCROLL_BOTTOM);
 319         ar->v2d.scroll &= ~(V2D_SCROLL_LEFT | V2D_SCROLL_TOP);  /* prevent any noise of past */
 320         ar->v2d.scroll |= V2D_SCROLL_HORIZONTAL_HIDE;
 321         ar->v2d.scroll |= V2D_SCROLL_VERTICAL_HIDE;
 322
 323         UI_view2d_region_reinit(&ar->v2d, V2D_COMMONVIEW_LIST, ar->winx, ar->winy);
 324
 325         /* own keymap */
 326         keymap = WM_keymap_find(wm->defaultconf, "Animation Channels", 0, 0);
 327         WM_event_add_keymap_handler_bb(&ar->handlers, keymap, &ar->v2d.mask, &ar->winrct);
 328         keymap = WM_keymap_find(wm->defaultconf, "Graph Editor Generic", SPACE_IPO, 0);
 329         WM_event_add_keymap_handler(&ar->handlers, keymap);
 330 }
 331
 332 static void graph_channel_area_draw(const bContext *C, ARegion *ar)
 333 {
 334         bAnimContext ac;
 335         View2D *v2d = &ar->v2d;
 336         View2DScrollers *scrollers;
 337         float col[3];
 338
 339         /* clear and setup matrix */
 340         UI_GetThemeColor3fv(TH_BACK, col);
 341         glClearColor(col[0], col[1], col[2], 0.0);
 342         glClear(GL_COLOR_BUFFER_BIT);
 343
 344         UI_view2d_view_ortho(v2d);
 345
 346         /* draw channels */
 347         if (ANIM_animdata_get_context(C, &ac)) {
 348                 graph_draw_channel_names((bContext *)C, &ac, ar);
 349         }
 350
 351         /* reset view matrix */
 352         UI_view2d_view_restore(C);
 353
 354         /* scrollers */
 355         scrollers = UI_view2d_scrollers_calc(C, v2d, V2D_ARG_DUMMY, V2D_ARG_DUMMY, V2D_ARG_DUMMY, V2D_ARG_DUMMY);
 356         UI_view2d_scrollers_draw(C, v2d, scrollers);
 357         UI_view2d_scrollers_free(scrollers);
 358 }
 359
 360 /* add handlers, stuff you only do once or on area/region changes */
 361 static void graph_header_area_init(wmWindowManager *UNUSED(wm), ARegion *ar)
 362 {
 363         ED_region_header_init(ar);
 364 }
 365
 366 static void graph_header_area_draw(const bContext *C, ARegion *ar)
 367 {
 368         ED_region_header(C, ar);
 369 }
 370
 371 /* add handlers, stuff you only do once or on area/region changes */
 372 static void graph_buttons_area_init(wmWindowManager *wm, ARegion *ar)
 373 {
 374         wmKeyMap *keymap;
 375
 376         ED_region_panels_init(wm, ar);
 377
 378         keymap = WM_keymap_find(wm->defaultconf, "Graph Editor Generic", SPACE_IPO, 0);
 379         WM_event_add_keymap_handler_bb(&ar->handlers, keymap, &ar->v2d.mask, &ar->winrct);
 380 }
 381
 382 static void graph_buttons_area_draw(const bContext *C, ARegion *ar)
 383 {
 384         ED_region_panels(C, ar, 1, NULL, -1);
 385 }
 386
 387 static void graph_region_listener(ARegion *ar, wmNotifier *wmn)
 388 {
 389         /* context changes */
 390         switch (wmn->category) {
 391                 case NC_ANIMATION:
 392                         ED_region_tag_redraw(ar);
 393                         break;
 394                 case NC_SCENE:
 395                         switch (wmn->data) {
 396                                 case ND_RENDER_OPTIONS:
 397                                 case ND_OB_ACTIVE:
 398                                 case ND_FRAME:
 399                                 case ND_MARKERS:
 400                                         ED_region_tag_redraw(ar);
 401                                         break;
 402                                 case ND_SEQUENCER:
 403                                         if (wmn->action == NA_SELECTED)
 404                                                 ED_region_tag_redraw(ar);
 405                                         break;
 406                         }
 407                         break;
 408                 case NC_OBJECT:
 409                         switch (wmn->data) {
 410                                 case ND_BONE_ACTIVE:
 411                                 case ND_BONE_SELECT:
 412                                 case ND_KEYS:
 413                                         ED_region_tag_redraw(ar);
 414                                         break;
 415                                 case ND_MODIFIER:
 416                                         if (wmn->action == NA_RENAME)
 417                                                 ED_region_tag_redraw(ar);
 418                                         break;
 419                         }
 420                         break;
 421                 case NC_NODE:
 422                         switch (wmn->action) {
 423                                 case NA_EDITED:
 424                                 case NA_SELECTED:
 425                                         ED_region_tag_redraw(ar);
 426                                         break;
 427                         }
 428                         break;
 429                 case NC_ID:
 430                         if (wmn->action == NA_RENAME)
 431                                 ED_region_tag_redraw(ar);
 432                         break;
 433                 default:
 434                         if (wmn->data == ND_KEYS)
 435                                 ED_region_tag_redraw(ar);
 436
 437         }
 438 }
 439
 440 /* editor level listener */
 441 static void graph_listener(ScrArea *sa, wmNotifier *wmn)
 442 {
 443         SpaceIpo *sipo = (SpaceIpo *)sa->spacedata.first;
 444
 445         /* context changes */
 446         switch (wmn->category) {
 447                 case NC_ANIMATION:
 448                         /* for selection changes of animation data, we can just redraw... otherwise autocolor might need to be done again */
 449                         if (ELEM(wmn->data, ND_KEYFRAME, ND_ANIMCHAN) && (wmn->action == NA_SELECTED))
 450                                 ED_area_tag_redraw(sa);
 451                         else
 452                                 ED_area_tag_refresh(sa);
 453                         break;
 454                 case NC_SCENE:
 455                         switch (wmn->data) {
 456                                 case ND_OB_ACTIVE:  /* selection changed, so force refresh to flush (needs flag set to do syncing)  */
 457                                 case ND_OB_SELECT:
 458                                         sipo->flag |= SIPO_TEMP_NEEDCHANSYNC;
 459                                         ED_area_tag_refresh(sa);
 460                                         break;
 461
 462                                 default: /* just redrawing the view will do */
 463                                         ED_area_tag_redraw(sa);
 464                                         break;
 465                         }
 466                         break;
 467                 case NC_OBJECT:
 468                         switch (wmn->data) {
 469                                 case ND_BONE_SELECT:    /* selection changed, so force refresh to flush (needs flag set to do syncing) */
 470                                 case ND_BONE_ACTIVE:
 471                                         sipo->flag |= SIPO_TEMP_NEEDCHANSYNC;
 472                                         ED_area_tag_refresh(sa);
 473                                         break;
 474                                 case ND_TRANSFORM:
 475                                         break; /*do nothing*/
 476
 477                                 default: /* just redrawing the view will do */
 478                                         ED_area_tag_redraw(sa);
 479                                         break;
 480                         }
 481                         break;
 482                 case NC_NODE:
 483                         if (wmn->action == NA_SELECTED) {
 484                                 /* selection changed, so force refresh to flush (needs flag set to do syncing) */
 485                                 sipo->flag |= SIPO_TEMP_NEEDCHANSYNC;
 486                                 ED_area_tag_refresh(sa);
 487                         }
 488                         break;
 489                 case NC_SPACE:
 490                         if (wmn->data == ND_SPACE_GRAPH)
 491                                 ED_area_tag_redraw(sa);
 492                         break;
 493                 case NC_WINDOW:
 494                         if (sipo->flag & SIPO_TEMP_NEEDCHANSYNC) {
 495                                 /* force redraw/refresh after undo/redo - prevents "black curve" problem */
 496                                 ED_area_tag_refresh(sa);
 497                         }
 498                         break;
 499
 500                         // XXX: restore the case below if not enough updates occur...
 501                         //default:
 502                         //      if (wmn->data == ND_KEYS)
 503                         //              ED_area_tag_redraw(sa);
 504         }
 505 }
 506
 507
 508
 509 static void graph_refresh(const bContext *C, ScrArea *sa)
 510 {
 511         SpaceIpo *sipo = (SpaceIpo *)sa->spacedata.first;
 512         bAnimContext ac;
 513
 514         /* updates to data needed depends on Graph Editor mode... */
 515         switch (sipo->mode) {
 516                 case SIPO_MODE_ANIMATION: /* all animation */
 517                 {
 518
 519                 }
 520                 break;
 521
 522                 case SIPO_MODE_DRIVERS: /* drivers only  */
 523                 {
 524
 525                 }
 526                 break;
 527         }
 528
 529         /* region updates? */
 530         // XXX re-sizing y-extents of tot should go here?
 531
 532         /* update the state of the animchannels in response to changes from the data they represent
 533          * NOTE: the temp flag is used to indicate when this needs to be done, and will be cleared once handled
 534          */
 535         if (sipo->flag & SIPO_TEMP_NEEDCHANSYNC) {
 536                 ANIM_sync_animchannels_to_data(C);
 537                 sipo->flag &= ~SIPO_TEMP_NEEDCHANSYNC;
 538                 ED_area_tag_redraw(sa);
 539         }
 540
 541         /* init/adjust F-Curve colors */
 542         if (ANIM_animdata_get_context(C, &ac)) {
 543                 ListBase anim_data = {NULL, NULL};
 544                 bAnimListElem *ale;
 545                 size_t items;
 546                 int filter;
 547                 int i;
 548
 549                 /* build list of F-Curves which will be visible as channels in channel-region
 550                  *  - we don't include ANIMFILTER_CURVEVISIBLE filter, as that will result in a
 551                  *    mismatch between channel-colors and the drawn curves
 552                  */
 553                 filter = (ANIMFILTER_DATA_VISIBLE | ANIMFILTER_NODUPLIS);
 554                 items = ANIM_animdata_filter(&ac, &anim_data, filter, ac.data, ac.datatype);
 555
 556                 /* loop over F-Curves, assigning colors */
 557                 for (ale = anim_data.first, i = 0; ale; ale = ale->next, i++) {
 558                         FCurve *fcu = (FCurve *)ale->data;
 559
 560                         /* set color of curve here */
 561                         switch (fcu->color_mode) {
 562                                 case FCURVE_COLOR_CUSTOM:
 563                                         /* User has defined a custom color for this curve already (we assume it's not going to cause clashes with text colors),
 564                                          * which should be left alone... Nothing needs to be done here.
 565                                          */
 566                                         break;
 567
 568                                 case FCURVE_COLOR_AUTO_RGB:
 569                                 {
 570                                         /* F-Curve's array index is automatically mapped to RGB values. This works best of 3-value vectors.
 571                                          * TODO: find a way to module the hue so that not all curves have same color...
 572                                          */
 573                                         float *col = fcu->color;
 574
 575                                         switch (fcu->array_index) {
 576                                                 case 0:
 577                                                         UI_GetThemeColor3fv(TH_AXIS_X, col);
 578                                                         break;
 579                                                 case 1:
 580                                                         UI_GetThemeColor3fv(TH_AXIS_Y, col);
 581                                                         break;
 582                                                 case 2:
 583                                                         UI_GetThemeColor3fv(TH_AXIS_Z, col);
 584                                                         break;
 585                                                 default:
 586                                                         /* 'unknown' color - bluish so as to not conflict with handles */
 587                                                         col[0] = 0.3f; col[1] = 0.8f; col[2] = 1.0f;
 588                                                         break;
 589                                         }
 590                                 }
 591                                 break;
 592
 593                                 case FCURVE_COLOR_AUTO_RAINBOW:
 594                                 default:
 595                                 {
 596                                         /* determine color 'automatically' using 'magic function' which uses the given args
 597                                          * of current item index + total items to determine some RGB color
 598                                          */
 599                                         getcolor_fcurve_rainbow(i, items, fcu->color);
 600                                 }
 601                                 break;
 602                         }
 603                 }
 604
 605                 /* free temp list */
 606                 BLI_freelistN(&anim_data);
 607         }
 608 }
 609
 610 /* only called once, from space/spacetypes.c */
 611 void ED_spacetype_ipo(void)
 612 {
 613         SpaceType *st = MEM_callocN(sizeof(SpaceType), "spacetype ipo");
 614         ARegionType *art;
 615
 616         st->spaceid = SPACE_IPO;
 617         strncpy(st->name, "Graph", BKE_ST_MAXNAME);
 618
 619         st->new = graph_new;
 620         st->free = graph_free;
 621         st->init = graph_init;
 622         st->duplicate = graph_duplicate;
 623         st->operatortypes = graphedit_operatortypes;
 624         st->keymap = graphedit_keymap;
 625         st->listener = graph_listener;
 626         st->refresh = graph_refresh;
 627
 628         /* regions: main window */
 629         art = MEM_callocN(sizeof(ARegionType), "spacetype graphedit region");
 630         art->regionid = RGN_TYPE_WINDOW;
 631         art->init = graph_main_area_init;
 632         art->draw = graph_main_area_draw;
 633         art->listener = graph_region_listener;
 634         art->keymapflag = ED_KEYMAP_VIEW2D | ED_KEYMAP_MARKERS | ED_KEYMAP_ANIMATION | ED_KEYMAP_FRAMES;
 635
 636         BLI_addhead(&st->regiontypes, art);
 637
 638         /* regions: header */
 639         art = MEM_callocN(sizeof(ARegionType), "spacetype graphedit region");
 640         art->regionid = RGN_TYPE_HEADER;
 641         art->prefsizey = HEADERY;
 642         art->keymapflag = ED_KEYMAP_UI | ED_KEYMAP_VIEW2D | ED_KEYMAP_FRAMES | ED_KEYMAP_HEADER;
 643         art->listener = graph_region_listener;
 644         art->init = graph_header_area_init;
 645         art->draw = graph_header_area_draw;
 646
 647         BLI_addhead(&st->regiontypes, art);
 648
 649         /* regions: channels */
 650         art = MEM_callocN(sizeof(ARegionType), "spacetype graphedit region");
 651         art->regionid = RGN_TYPE_CHANNELS;
 652         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 */
 653         art->keymapflag = ED_KEYMAP_UI | ED_KEYMAP_VIEW2D | ED_KEYMAP_FRAMES;
 654         art->listener = graph_region_listener;
 655         art->init = graph_channel_area_init;
 656         art->draw = graph_channel_area_draw;
 657
 658         BLI_addhead(&st->regiontypes, art);
 659
 660         /* regions: UI buttons */
 661         art = MEM_callocN(sizeof(ARegionType), "spacetype graphedit region");
 662         art->regionid = RGN_TYPE_UI;
 663         art->prefsizex = 200;
 664         art->keymapflag = ED_KEYMAP_UI;
 665         art->listener = graph_region_listener;
 666         art->init = graph_buttons_area_init;
 667         art->draw = graph_buttons_area_draw;
 668
 669         BLI_addhead(&st->regiontypes, art);
 670
 671         graph_buttons_register(art);
 672
 673         BKE_spacetype_register(st);
 674 }
 675