source/blender/editors/space_image/space_image.c

   1 /**
   2  * $Id:
   3  *
   4  * ***** BEGIN GPL LICENSE BLOCK *****
   5  *
   6  * This program is free software; you can redistribute it and/or
   7  * modify it under the terms of the GNU General Public License
   8  * as published by the Free Software Foundation; either version 2
   9  * of the License, or (at your option) any later version.
  10  *
  11  * This program is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14  * GNU General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU General Public License
  17  * along with this program; if not, write to the Free Software Foundation,
  18  * Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
  19  *
  20  * The Original Code is Copyright (C) 2008 Blender Foundation.
  21  * All rights reserved.
  22  *
  23  *
  24  * Contributor(s): Blender Foundation
  25  *
  26  * ***** END GPL LICENSE BLOCK *****
  27  */
  28
  29 #include <string.h>
  30 #include <stdio.h>
  31
  32 #include "DNA_image_types.h"
  33 #include "DNA_mesh_types.h"
  34 #include "DNA_meshdata_types.h"
  35 #include "DNA_object_types.h"
  36 #include "DNA_space_types.h"
  37 #include "DNA_scene_types.h"
  38 #include "DNA_screen_types.h"
  39
  40 #include "MEM_guardedalloc.h"
  41
  42 #include "BLI_blenlib.h"
  43 #include "BLI_arithb.h"
  44 #include "BLI_editVert.h"
  45 #include "BLI_rand.h"
  46
  47 #include "BKE_colortools.h"
  48 #include "BKE_context.h"
  49 #include "BKE_image.h"
  50 #include "BKE_mesh.h"
  51 #include "BKE_screen.h"
  52 #include "BKE_utildefines.h"
  53
  54 #include "IMB_imbuf.h"
  55 #include "IMB_imbuf_types.h"
  56
  57 #include "ED_image.h"
  58 #include "ED_mesh.h"
  59 #include "ED_space_api.h"
  60 #include "ED_screen.h"
  61 #include "ED_uvedit.h"
  62
  63 #include "BIF_gl.h"
  64 #include "BIF_glutil.h"
  65
  66 #include "RNA_access.h"
  67
  68 #include "WM_api.h"
  69 #include "WM_types.h"
  70
  71 #include "UI_interface.h"
  72 #include "UI_resources.h"
  73 #include "UI_view2d.h"
  74
  75 #include "image_intern.h"
  76
  77 /* ******************** manage regions ********************* */
  78
  79 ARegion *image_has_buttons_region(ScrArea *sa)
  80 {
  81         ARegion *ar, *arnew;
  82
  83         for(ar= sa->regionbase.first; ar; ar= ar->next)
  84                 if(ar->regiontype==RGN_TYPE_UI)
  85                         return ar;
  86
  87         /* add subdiv level; after header */
  88         for(ar= sa->regionbase.first; ar; ar= ar->next)
  89                 if(ar->regiontype==RGN_TYPE_HEADER)
  90                         break;
  91
  92         /* is error! */
  93         if(ar==NULL) return NULL;
  94
  95         arnew= MEM_callocN(sizeof(ARegion), "buttons for image");
  96
  97         BLI_insertlinkafter(&sa->regionbase, ar, arnew);
  98         arnew->regiontype= RGN_TYPE_UI;
  99         arnew->alignment= RGN_ALIGN_LEFT;
 100
 101         arnew->flag = RGN_FLAG_HIDDEN;
 102
 103         return arnew;
 104 }
 105
 106 /* ******************** default callbacks for image space ***************** */
 107
 108 static SpaceLink *image_new(const bContext *C)
 109 {
 110         ARegion *ar;
 111         SpaceImage *simage;
 112
 113         simage= MEM_callocN(sizeof(SpaceImage), "initimage");
 114         simage->spacetype= SPACE_IMAGE;
 115         simage->zoom= 1;
 116
 117         simage->iuser.ok= 1;
 118         simage->iuser.fie_ima= 2;
 119         simage->iuser.frames= 100;
 120
 121         /* header */
 122         ar= MEM_callocN(sizeof(ARegion), "header for image");
 123
 124         BLI_addtail(&simage->regionbase, ar);
 125         ar->regiontype= RGN_TYPE_HEADER;
 126         ar->alignment= RGN_ALIGN_BOTTOM;
 127
 128         /* buttons/list view */
 129         ar= MEM_callocN(sizeof(ARegion), "buttons for image");
 130
 131         BLI_addtail(&simage->regionbase, ar);
 132         ar->regiontype= RGN_TYPE_UI;
 133         ar->alignment= RGN_ALIGN_LEFT;
 134         ar->flag = RGN_FLAG_HIDDEN;
 135
 136         /* main area */
 137         ar= MEM_callocN(sizeof(ARegion), "main area for image");
 138
 139         BLI_addtail(&simage->regionbase, ar);
 140         ar->regiontype= RGN_TYPE_WINDOW;
 141
 142         return (SpaceLink *)simage;
 143 }
 144
 145 /* not spacelink itself */
 146 static void image_free(SpaceLink *sl)
 147 {
 148         SpaceImage *simage= (SpaceImage*) sl;
 149
 150         if(simage->cumap)
 151                 curvemapping_free(simage->cumap);
 152 //      if(simage->gpd)
 153 // XXX          free_gpencil_data(simage->gpd);
 154
 155 }
 156
 157
 158 /* spacetype; init callback */
 159 static void image_init(struct wmWindowManager *wm, ScrArea *sa)
 160 {
 161
 162 }
 163
 164 static SpaceLink *image_duplicate(SpaceLink *sl)
 165 {
 166         SpaceImage *simagen= MEM_dupallocN(sl);
 167
 168         /* clear or remove stuff from old */
 169         if(simagen->cumap)
 170                 simagen->cumap= curvemapping_copy(simagen->cumap);
 171
 172         return (SpaceLink *)simagen;
 173 }
 174
 175 void image_operatortypes(void)
 176 {
 177         WM_operatortype_append(IMAGE_OT_view_all);
 178         WM_operatortype_append(IMAGE_OT_view_pan);
 179         WM_operatortype_append(IMAGE_OT_view_selected);
 180         WM_operatortype_append(IMAGE_OT_view_zoom);
 181         WM_operatortype_append(IMAGE_OT_view_zoom_in);
 182         WM_operatortype_append(IMAGE_OT_view_zoom_out);
 183         WM_operatortype_append(IMAGE_OT_view_zoom_ratio);
 184
 185         WM_operatortype_append(IMAGE_OT_new);
 186         WM_operatortype_append(IMAGE_OT_open);
 187         WM_operatortype_append(IMAGE_OT_replace);
 188         WM_operatortype_append(IMAGE_OT_reload);
 189         WM_operatortype_append(IMAGE_OT_save);
 190         WM_operatortype_append(IMAGE_OT_save_as);
 191         WM_operatortype_append(IMAGE_OT_save_sequence);
 192         WM_operatortype_append(IMAGE_OT_pack);
 193         WM_operatortype_append(IMAGE_OT_unpack);
 194
 195         WM_operatortype_append(IMAGE_OT_sample);
 196         WM_operatortype_append(IMAGE_OT_curves_point_set);
 197
 198         WM_operatortype_append(IMAGE_OT_record_composite);
 199
 200         WM_operatortype_append(IMAGE_OT_toolbox);
 201         WM_operatortype_append(IMAGE_OT_properties);
 202 }
 203
 204 void image_keymap(struct wmWindowManager *wm)
 205 {
 206         ListBase *keymap= WM_keymap_listbase(wm, "Image Generic", SPACE_IMAGE, 0);
 207
 208         WM_keymap_add_item(keymap, "IMAGE_OT_new", NKEY, KM_PRESS, KM_ALT, 0);
 209         WM_keymap_add_item(keymap, "IMAGE_OT_open", OKEY, KM_PRESS, KM_ALT, 0);
 210         WM_keymap_add_item(keymap, "IMAGE_OT_reload", RKEY, KM_PRESS, KM_ALT, 0);
 211         WM_keymap_add_item(keymap, "IMAGE_OT_save", SKEY, KM_PRESS, KM_ALT, 0);
 212         WM_keymap_add_item(keymap, "IMAGE_OT_properties", NKEY, KM_PRESS, 0, 0);
 213
 214         keymap= WM_keymap_listbase(wm, "Image", SPACE_IMAGE, 0);
 215
 216         WM_keymap_add_item(keymap, "IMAGE_OT_view_all", HOMEKEY, KM_PRESS, 0, 0);
 217         WM_keymap_add_item(keymap, "IMAGE_OT_view_selected", PADPERIOD, KM_PRESS, 0, 0);
 218         WM_keymap_add_item(keymap, "IMAGE_OT_view_pan", MIDDLEMOUSE, KM_PRESS, 0, 0);
 219
 220         WM_keymap_add_item(keymap, "IMAGE_OT_view_zoom_in", WHEELINMOUSE, KM_PRESS, 0, 0);
 221         WM_keymap_add_item(keymap, "IMAGE_OT_view_zoom_out", WHEELOUTMOUSE, KM_PRESS, 0, 0);
 222         WM_keymap_add_item(keymap, "IMAGE_OT_view_zoom_in", PADPLUSKEY, KM_PRESS, 0, 0);
 223         WM_keymap_add_item(keymap, "IMAGE_OT_view_zoom_out", PADMINUS, KM_PRESS, 0, 0);
 224         WM_keymap_add_item(keymap, "IMAGE_OT_view_zoom", MIDDLEMOUSE, KM_PRESS, KM_CTRL, 0);
 225
 226         RNA_float_set(WM_keymap_add_item(keymap, "IMAGE_OT_view_zoom_ratio", PAD8, KM_PRESS, KM_SHIFT, 0)->ptr, "ratio", 8.0f);
 227         RNA_float_set(WM_keymap_add_item(keymap, "IMAGE_OT_view_zoom_ratio", PAD4, KM_PRESS, KM_SHIFT, 0)->ptr, "ratio", 4.0f);
 228         RNA_float_set(WM_keymap_add_item(keymap, "IMAGE_OT_view_zoom_ratio", PAD2, KM_PRESS, KM_SHIFT, 0)->ptr, "ratio", 2.0f);
 229         RNA_float_set(WM_keymap_add_item(keymap, "IMAGE_OT_view_zoom_ratio", PAD1, KM_PRESS, 0, 0)->ptr, "ratio", 1.0f);
 230         RNA_float_set(WM_keymap_add_item(keymap, "IMAGE_OT_view_zoom_ratio", PAD2, KM_PRESS, 0, 0)->ptr, "ratio", 0.5f);
 231         RNA_float_set(WM_keymap_add_item(keymap, "IMAGE_OT_view_zoom_ratio", PAD4, KM_PRESS, 0, 0)->ptr, "ratio", 0.25f);
 232         RNA_float_set(WM_keymap_add_item(keymap, "IMAGE_OT_view_zoom_ratio", PAD8, KM_PRESS, 0, 0)->ptr, "ratio", 0.125f);
 233
 234         WM_keymap_add_item(keymap, "PAINT_OT_image_paint", ACTIONMOUSE, KM_PRESS, 0, 0);
 235         WM_keymap_add_item(keymap, "PAINT_OT_grab_clone", SELECTMOUSE, KM_PRESS, 0, 0);
 236         WM_keymap_add_item(keymap, "PAINT_OT_sample_color", SELECTMOUSE, KM_PRESS, 0, 0);
 237         RNA_enum_set(WM_keymap_add_item(keymap, "PAINT_OT_image_paint_radial_control", FKEY, KM_PRESS, 0, 0)->ptr, "mode", WM_RADIALCONTROL_SIZE);
 238         RNA_enum_set(WM_keymap_add_item(keymap, "PAINT_OT_image_paint_radial_control", FKEY, KM_PRESS, KM_SHIFT, 0)->ptr, "mode", WM_RADIALCONTROL_STRENGTH);
 239
 240         WM_keymap_add_item(keymap, "IMAGE_OT_sample", ACTIONMOUSE, KM_PRESS, 0, 0);
 241         RNA_enum_set(WM_keymap_add_item(keymap, "IMAGE_OT_curves_point_set", ACTIONMOUSE, KM_PRESS, KM_CTRL, 0)->ptr, "point", 0);
 242         RNA_enum_set(WM_keymap_add_item(keymap, "IMAGE_OT_curves_point_set", ACTIONMOUSE, KM_PRESS, KM_SHIFT, 0)->ptr, "point", 1);
 243
 244         WM_keymap_add_item(keymap, "IMAGE_OT_toolbox", SPACEKEY, KM_PRESS, 0, 0);
 245 }
 246
 247 static void image_refresh(const bContext *C, ScrArea *sa)
 248 {
 249         SpaceImage *sima= (SpaceImage*)CTX_wm_space_data(C);
 250         Object *obedit= CTX_data_edit_object(C);
 251         Image *ima;
 252
 253         ima= ED_space_image(sima);
 254
 255         /* check if we have to set the image from the editmesh */
 256         if(ima && (ima->source==IMA_SRC_VIEWER || sima->pin));
 257         else if(obedit && obedit->type == OB_MESH) {
 258                 Mesh *me= (Mesh*)obedit->data;
 259                 EditMesh *em= BKE_mesh_get_editmesh(me);
 260                 MTFace *tf;
 261
 262                 if(em && EM_texFaceCheck(em)) {
 263                         sima->image= ima= NULL;
 264
 265                         tf = EM_get_active_mtface(em, NULL, NULL, 1); /* partially selected face is ok */
 266
 267                         if(tf && (tf->mode & TF_TEX)) {
 268                                 /* don't need to check for pin here, see above */
 269                                 sima->image= ima= tf->tpage;
 270
 271                                 if(sima->flag & SI_EDITTILE);
 272                                 else sima->curtile= tf->tile;
 273                         }
 274                 }
 275
 276                 BKE_mesh_end_editmesh(obedit->data, em);
 277         }
 278 }
 279
 280 static void image_listener(ScrArea *sa, wmNotifier *wmn)
 281 {
 282         /* context changes */
 283         switch(wmn->category) {
 284                 case NC_SCENE:
 285                         switch(wmn->data) {
 286                                 case ND_MODE:
 287                                 case ND_RENDER_RESULT:
 288                                 case ND_COMPO_RESULT:
 289                                         ED_area_tag_refresh(sa);
 290                                         ED_area_tag_redraw(sa);
 291                                         break;
 292                         }
 293                         break;
 294                 case NC_IMAGE:
 295                         ED_area_tag_redraw(sa);
 296                         break;
 297         }
 298 }
 299
 300 static int image_context(const bContext *C, const char *member, bContextDataResult *result)
 301 {
 302         SpaceImage *sima= (SpaceImage*)CTX_wm_space_data(C);
 303
 304         if(CTX_data_dir(member)) {
 305                 static const char *dir[] = {"edit_image", NULL};
 306                 CTX_data_dir_set(result, dir);
 307         }
 308         else if(CTX_data_equals(member, "edit_image")) {
 309                 CTX_data_id_pointer_set(result, (ID*)ED_space_image(sima));
 310                 return 1;
 311         }
 312
 313         return 0;
 314 }
 315
 316 /************************** main region ***************************/
 317
 318 /* sets up the fields of the View2D from zoom and offset */
 319 static void image_main_area_set_view2d(SpaceImage *sima, ARegion *ar, Scene *scene)
 320 {
 321         Image *ima= ED_space_image(sima);
 322         float x1, y1, w, h;
 323         int width, height, winx, winy;
 324
 325 #if 0
 326         if(image_preview_active(curarea, &width, &height));
 327 #endif
 328         if(sima->image) {
 329                 ImBuf *ibuf= ED_space_image_buffer(sima);
 330
 331                 if(ibuf) {
 332                         width= ibuf->x;
 333                         height= ibuf->y;
 334                 }
 335                 else if(sima->image->type==IMA_TYPE_R_RESULT) {
 336                         /* not very important, just nice */
 337                         width= (scene->r.xsch*scene->r.size)/100;
 338                         height= (scene->r.ysch*scene->r.size)/100;
 339                 }
 340                 else
 341                         ED_space_image_size(sima, &width, &height);
 342         }
 343         else
 344                 ED_space_image_size(sima, &width, &height);
 345
 346         w= width;
 347         h= height;
 348
 349         if(ima)
 350                 h *= ima->aspy/ima->aspx;
 351
 352         winx= ar->winrct.xmax - ar->winrct.xmin + 1;
 353         winy= ar->winrct.ymax - ar->winrct.ymin + 1;
 354
 355         ar->v2d.tot.xmin= 0;
 356         ar->v2d.tot.ymin= 0;
 357         ar->v2d.tot.xmax= w;
 358         ar->v2d.tot.ymax= h;
 359
 360         ar->v2d.mask.xmin= ar->v2d.mask.ymin= 0;
 361         ar->v2d.mask.xmax= winx;
 362         ar->v2d.mask.ymax= winy;
 363
 364         /* which part of the image space do we see? */
 365         /* same calculation as in lrectwrite: area left and down*/
 366         x1= ar->winrct.xmin+(winx-sima->zoom*w)/2;
 367         y1= ar->winrct.ymin+(winy-sima->zoom*h)/2;
 368
 369         x1-= sima->zoom*sima->xof;
 370         y1-= sima->zoom*sima->yof;
 371
 372         /* relative display right */
 373         ar->v2d.cur.xmin= ((ar->winrct.xmin - (float)x1)/sima->zoom);
 374         ar->v2d.cur.xmax= ar->v2d.cur.xmin + ((float)winx/sima->zoom);
 375
 376         /* relative display left */
 377         ar->v2d.cur.ymin= ((ar->winrct.ymin-(float)y1)/sima->zoom);
 378         ar->v2d.cur.ymax= ar->v2d.cur.ymin + ((float)winy/sima->zoom);
 379
 380         /* normalize 0.0..1.0 */
 381         ar->v2d.cur.xmin /= w;
 382         ar->v2d.cur.xmax /= w;
 383         ar->v2d.cur.ymin /= h;
 384         ar->v2d.cur.ymax /= h;
 385 }
 386
 387 /* add handlers, stuff you only do once or on area/region changes */
 388 static void image_main_area_init(wmWindowManager *wm, ARegion *ar)
 389 {
 390         ListBase *keymap;
 391
 392         // image space manages own v2d
 393         // UI_view2d_region_reinit(&ar->v2d, V2D_COMMONVIEW_STANDARD, ar->winx, ar->winy);
 394
 395         /* image paint polls for mode */
 396         keymap= WM_keymap_listbase(wm, "ImagePaint", SPACE_IMAGE, 0);
 397         WM_event_add_keymap_handler_bb(&ar->handlers, keymap, &ar->v2d.mask, &ar->winrct);
 398
 399         /* own keymaps */
 400         keymap= WM_keymap_listbase(wm, "Image Generic", SPACE_IMAGE, 0);
 401         WM_event_add_keymap_handler(&ar->handlers, keymap);
 402         keymap= WM_keymap_listbase(wm, "Image", SPACE_IMAGE, 0);
 403         WM_event_add_keymap_handler_bb(&ar->handlers, keymap, &ar->v2d.mask, &ar->winrct);
 404 }
 405
 406 static void image_main_area_draw(const bContext *C, ARegion *ar)
 407 {
 408         /* draw entirely, view changes should be handled here */
 409         SpaceImage *sima= (SpaceImage*)CTX_wm_space_data(C);
 410         Object *obedit= CTX_data_edit_object(C);
 411         Scene *scene= CTX_data_scene(C);
 412         View2D *v2d= &ar->v2d;
 413         //View2DScrollers *scrollers;
 414         float col[3];
 415
 416         /* clear and setup matrix */
 417         UI_GetThemeColor3fv(TH_BACK, col);
 418         glClearColor(col[0], col[1], col[2], 0.0);
 419         glClear(GL_COLOR_BUFFER_BIT);
 420
 421         /* we set view2d from own zoom and offset each time */
 422         image_main_area_set_view2d(sima, ar, scene);
 423
 424         /* we draw image in pixelspace */
 425         draw_image_main(sima, ar, scene);
 426
 427         /* and uvs in 0.0-1.0 space */
 428         UI_view2d_view_ortho(C, v2d);
 429         draw_uvedit_main(sima, ar, scene, obedit);
 430         ED_region_draw_cb_draw(C, ar, REGION_DRAW_POST);
 431         UI_view2d_view_restore(C);
 432
 433         /* scrollers? */
 434         /*scrollers= UI_view2d_scrollers_calc(C, v2d, V2D_UNIT_VALUES, V2D_GRID_CLAMP, V2D_ARG_DUMMY, V2D_ARG_DUMMY);
 435         UI_view2d_scrollers_draw(C, v2d, scrollers);
 436         UI_view2d_scrollers_free(scrollers);*/
 437 }
 438
 439 static void image_modal_keymaps(wmWindowManager *wm, ARegion *ar, int stype)
 440 {
 441         ListBase *keymap;
 442
 443         keymap= WM_keymap_listbase(wm, "UVEdit", 0, 0);
 444
 445         if(stype==NS_EDITMODE_MESH)
 446                 WM_event_add_keymap_handler(&ar->handlers, keymap);
 447         else
 448                 WM_event_remove_keymap_handler(&ar->handlers, keymap);
 449 }
 450
 451 static void image_main_area_listener(ARegion *ar, wmNotifier *wmn)
 452 {
 453         /* context changes */
 454         switch(wmn->category) {
 455                 case NC_SCENE:
 456                         switch(wmn->data) {
 457                                 case ND_MODE:
 458                                         image_modal_keymaps(wmn->wm, ar, wmn->subtype);
 459                                         break;
 460                         }
 461                         break;
 462                 case NC_OBJECT:
 463                         switch(wmn->data) {
 464                                 case ND_GEOM_SELECT:
 465                                 case ND_GEOM_DATA:
 466                                         ED_region_tag_redraw(ar);
 467                                         break;
 468                         }
 469         }
 470 }
 471
 472 /* *********************** buttons region ************************ */
 473
 474 /* add handlers, stuff you only do once or on area/region changes */
 475 static void image_buttons_area_init(wmWindowManager *wm, ARegion *ar)
 476 {
 477         ListBase *keymap;
 478
 479         ED_region_panels_init(wm, ar);
 480
 481         keymap= WM_keymap_listbase(wm, "Image Generic", SPACE_IMAGE, 0);
 482         WM_event_add_keymap_handler(&ar->handlers, keymap);
 483 }
 484
 485 static void image_buttons_area_draw(const bContext *C, ARegion *ar)
 486 {
 487         ED_region_panels(C, ar, 1, NULL);
 488 }
 489
 490 static void image_buttons_area_listener(ARegion *ar, wmNotifier *wmn)
 491 {
 492         /* context changes */
 493         switch(wmn->category) {
 494
 495         }
 496 }
 497
 498 /************************* header region **************************/
 499
 500 /* add handlers, stuff you only do once or on area/region changes */
 501 static void image_header_area_init(wmWindowManager *wm, ARegion *ar)
 502 {
 503 #if 0
 504         UI_view2d_region_reinit(&ar->v2d, V2D_COMMONVIEW_HEADER, ar->winx, ar->winy);
 505 #else
 506         ED_region_header_init(ar);
 507 #endif
 508 }
 509
 510 static void image_header_area_draw(const bContext *C, ARegion *ar)
 511 {
 512         ED_region_header(C, ar);
 513 #if 0
 514         float col[3];
 515
 516         /* clear */
 517         if(ED_screen_area_active(C))
 518                 UI_GetThemeColor3fv(TH_HEADER, col);
 519         else
 520                 UI_GetThemeColor3fv(TH_HEADERDESEL, col);
 521
 522         glClearColor(col[0], col[1], col[2], 0.0);
 523         glClear(GL_COLOR_BUFFER_BIT);
 524
 525         /* set view2d view matrix for scrolling (without scrollers) */
 526         UI_view2d_view_ortho(C, &ar->v2d);
 527
 528         image_header_buttons(C, ar);
 529
 530         /* restore view matrix? */
 531         UI_view2d_view_restore(C);
 532 #endif
 533 }
 534
 535 /**************************** spacetype *****************************/
 536
 537 /* only called once, from space/spacetypes.c */
 538 void ED_spacetype_image(void)
 539 {
 540         SpaceType *st= MEM_callocN(sizeof(SpaceType), "spacetype image");
 541         ARegionType *art;
 542
 543         st->spaceid= SPACE_IMAGE;
 544
 545         st->new= image_new;
 546         st->free= image_free;
 547         st->init= image_init;
 548         st->duplicate= image_duplicate;
 549         st->operatortypes= image_operatortypes;
 550         st->keymap= image_keymap;
 551         st->refresh= image_refresh;
 552         st->listener= image_listener;
 553         st->context= image_context;
 554
 555         /* regions: main window */
 556         art= MEM_callocN(sizeof(ARegionType), "spacetype image region");
 557         art->regionid = RGN_TYPE_WINDOW;
 558         art->keymapflag= ED_KEYMAP_FRAMES;
 559         art->init= image_main_area_init;
 560         art->draw= image_main_area_draw;
 561         art->listener= image_main_area_listener;
 562         art->keymapflag= 0;
 563
 564         BLI_addhead(&st->regiontypes, art);
 565
 566         /* regions: listview/buttons */
 567         art= MEM_callocN(sizeof(ARegionType), "spacetype image region");
 568         art->regionid = RGN_TYPE_UI;
 569         art->minsizex= 220; // XXX
 570         art->keymapflag= ED_KEYMAP_UI|ED_KEYMAP_FRAMES;
 571         art->listener= image_buttons_area_listener;
 572         art->init= image_buttons_area_init;
 573         art->draw= image_buttons_area_draw;
 574         BLI_addhead(&st->regiontypes, art);
 575
 576         image_buttons_register(art);
 577
 578         /* regions: header */
 579         art= MEM_callocN(sizeof(ARegionType), "spacetype image region");
 580         art->regionid = RGN_TYPE_HEADER;
 581         art->minsizey= HEADERY;
 582         art->keymapflag= ED_KEYMAP_UI|ED_KEYMAP_VIEW2D|ED_KEYMAP_FRAMES;
 583         art->init= image_header_area_init;
 584         art->draw= image_header_area_draw;
 585
 586         BLI_addhead(&st->regiontypes, art);
 587
 588
 589         BKE_spacetype_register(st);
 590 }
 591
 592 /**************************** common state *****************************/
 593
 594 /* note; image_panel_properties() uses pointer to sima->image directly */
 595 Image *ED_space_image(SpaceImage *sima)
 596 {
 597         return sima->image;
 598 }
 599
 600 /* called to assign images to UV faces */
 601 void ED_space_image_set(bContext *C, SpaceImage *sima, Scene *scene, Object *obedit, Image *ima)
 602 {
 603         ED_uvedit_assign_image(scene, obedit, ima, sima->image);
 604
 605         /* change the space ima after because uvedit_face_visible uses the space ima
 606          * to check if the face is displayed in UV-localview */
 607         sima->image= ima;
 608
 609         if(ima == NULL || ima->type==IMA_TYPE_R_RESULT || ima->type==IMA_TYPE_COMPOSITE)
 610                 sima->flag &= ~SI_DRAWTOOL;
 611
 612         if(sima->image)
 613                 BKE_image_signal(sima->image, &sima->iuser, IMA_SIGNAL_USER_NEW_IMAGE);
 614
 615         if(sima->image && sima->image->id.us==0)
 616                 sima->image->id.us= 1;
 617
 618         if(C) {
 619                 if(obedit)
 620                         WM_event_add_notifier(C, NC_OBJECT|ND_GEOM_DATA, obedit);
 621
 622                 ED_area_tag_redraw(CTX_wm_area(C));
 623         }
 624 }
 625
 626 ImBuf *ED_space_image_buffer(SpaceImage *sima)
 627 {
 628         ImBuf *ibuf;
 629
 630         if(sima->image) {
 631 #if 0
 632                 if(sima->image->type==IMA_TYPE_R_RESULT && BIF_show_render_spare())
 633                         return BIF_render_spare_imbuf();
 634                 else
 635 #endif
 636                         ibuf= BKE_image_get_ibuf(sima->image, &sima->iuser);
 637
 638                 if(ibuf && (ibuf->rect || ibuf->rect_float))
 639                         return ibuf;
 640         }
 641
 642         return NULL;
 643 }
 644
 645 void ED_image_size(Image *ima, int *width, int *height)
 646 {
 647         ImBuf *ibuf;
 648
 649         ibuf= (ima)? BKE_image_get_ibuf(ima, NULL): NULL;
 650
 651         if(ibuf && ibuf->x > 0 && ibuf->y > 0) {
 652                 *width= ibuf->x;
 653                 *height= ibuf->y;
 654         }
 655         else {
 656                 *width= 256;
 657                 *height= 256;
 658         }
 659 }
 660
 661 void ED_space_image_size(SpaceImage *sima, int *width, int *height)
 662 {
 663         ImBuf *ibuf;
 664
 665         ibuf= ED_space_image_buffer(sima);
 666
 667         if(ibuf && ibuf->x > 0 && ibuf->y > 0) {
 668                 *width= ibuf->x;
 669                 *height= ibuf->y;
 670         }
 671         /* I know a bit weak... but preview uses not actual image size */
 672         // XXX else if(image_preview_active(sima, width, height));
 673         else {
 674                 *width= 256;
 675                 *height= 256;
 676         }
 677 }
 678
 679 void ED_image_aspect(Image *ima, float *aspx, float *aspy)
 680 {
 681         *aspx= *aspy= 1.0;
 682
 683         if((ima == NULL) || (ima->type == IMA_TYPE_R_RESULT) || (ima->type == IMA_TYPE_COMPOSITE) ||
 684            (ima->aspx==0.0 || ima->aspy==0.0))
 685                 return;
 686
 687         /* x is always 1 */
 688         *aspy = ima->aspy/ima->aspx;
 689 }
 690
 691 void ED_space_image_aspect(SpaceImage *sima, float *aspx, float *aspy)
 692 {
 693         ED_image_aspect(ED_space_image(sima), aspx, aspy);
 694 }
 695
 696 void ED_space_image_zoom(SpaceImage *sima, ARegion *ar, float *zoomx, float *zoomy)
 697 {
 698         int width, height;
 699
 700         ED_space_image_size(sima, &width, &height);
 701
 702         *zoomx= (float)(ar->winrct.xmax - ar->winrct.xmin)/(float)((ar->v2d.cur.xmax - ar->v2d.cur.xmin)*width);
 703         *zoomy= (float)(ar->winrct.ymax - ar->winrct.ymin)/(float)((ar->v2d.cur.ymax - ar->v2d.cur.ymin)*height);
 704 }
 705
 706 void ED_space_image_uv_aspect(SpaceImage *sima, float *aspx, float *aspy)
 707 {
 708         int w, h;
 709
 710         ED_space_image_aspect(sima, aspx, aspy);
 711         ED_space_image_size(sima, &w, &h);
 712
 713         *aspx *= (float)w/256.0f;
 714         *aspy *= (float)h/256.0f;
 715 }
 716
 717 void ED_image_uv_aspect(Image *ima, float *aspx, float *aspy)
 718 {
 719         int w, h;
 720
 721         ED_image_aspect(ima, aspx, aspy);
 722         ED_image_size(ima, &w, &h);
 723
 724         *aspx *= (float)w;
 725         *aspy *= (float)h;
 726 }
 727
 728 int ED_space_image_show_render(SpaceImage *sima)
 729 {
 730         return (sima->image && ELEM(sima->image->type, IMA_TYPE_R_RESULT, IMA_TYPE_COMPOSITE));
 731 }
 732
 733 int ED_space_image_show_paint(SpaceImage *sima)
 734 {
 735         if(ED_space_image_show_render(sima))
 736                 return 0;
 737
 738         return (sima->flag & SI_DRAWTOOL);
 739 }
 740
 741 int ED_space_image_show_uvedit(SpaceImage *sima, Object *obedit)
 742 {
 743         if(ED_space_image_show_render(sima))
 744                 return 0;
 745         if(ED_space_image_show_paint(sima))
 746                 return 0;
 747
 748         if(obedit && obedit->type == OB_MESH) {
 749                 EditMesh *em = BKE_mesh_get_editmesh(obedit->data);
 750                 int ret;
 751
 752                 ret = EM_texFaceCheck(em);
 753
 754                 BKE_mesh_end_editmesh(obedit->data, em);
 755                 return ret;
 756         }
 757
 758         return 0;
 759 }
 760
 761 int ED_space_image_show_uvshadow(SpaceImage *sima, Object *obedit)
 762 {
 763         if(ED_space_image_show_render(sima))
 764                 return 0;
 765
 766         if(ED_space_image_show_paint(sima))
 767                 if(obedit && obedit->type == OB_MESH) {
 768                         EditMesh *em = BKE_mesh_get_editmesh(obedit->data);
 769                         int ret;
 770
 771                         ret = EM_texFaceCheck(em);
 772
 773                         BKE_mesh_end_editmesh(obedit->data, em);
 774                         return ret;
 775                 }
 776
 777         return 0;
 778 }
 779