2.50: svn merge https://svn.blender.org/svnroot/bf-blender/trunk/blender -r19323...
[blender.git] / 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_screen.h"
51 #include "BKE_utildefines.h"
52
53 #include "IMB_imbuf.h"
54 #include "IMB_imbuf_types.h"
55
56 #include "ED_image.h"
57 #include "ED_mesh.h"
58 #include "ED_space_api.h"
59 #include "ED_screen.h"
60 #include "ED_uvedit.h"
61
62 #include "BIF_gl.h"
63 #include "BIF_glutil.h"
64
65 #include "RNA_access.h"
66
67 #include "WM_api.h"
68 #include "WM_types.h"
69
70 #include "UI_interface.h"
71 #include "UI_resources.h"
72 #include "UI_view2d.h"
73
74 #include "image_intern.h"
75
76 /* ******************** manage regions ********************* */
77
78 ARegion *image_has_buttons_region(ScrArea *sa)
79 {
80         ARegion *ar, *arnew;
81         
82         for(ar= sa->regionbase.first; ar; ar= ar->next)
83                 if(ar->regiontype==RGN_TYPE_UI)
84                         return ar;
85         
86         /* add subdiv level; after header */
87         for(ar= sa->regionbase.first; ar; ar= ar->next)
88                 if(ar->regiontype==RGN_TYPE_HEADER)
89                         break;
90         
91         /* is error! */
92         if(ar==NULL) return NULL;
93         
94         arnew= MEM_callocN(sizeof(ARegion), "buttons for image");
95         
96         BLI_insertlinkafter(&sa->regionbase, ar, arnew);
97         arnew->regiontype= RGN_TYPE_UI;
98         arnew->alignment= RGN_ALIGN_LEFT;
99         
100         arnew->flag = RGN_FLAG_HIDDEN;
101         
102         return arnew;
103 }
104
105 /* ******************** default callbacks for image space ***************** */
106
107 static SpaceLink *image_new(const bContext *C)
108 {
109         ARegion *ar;
110         SpaceImage *simage;
111         
112         simage= MEM_callocN(sizeof(SpaceImage), "initimage");
113         simage->spacetype= SPACE_IMAGE;
114         simage->zoom= 1;
115         
116         simage->iuser.ok= 1;
117         simage->iuser.fie_ima= 2;
118         simage->iuser.frames= 100;
119         
120         /* header */
121         ar= MEM_callocN(sizeof(ARegion), "header for image");
122         
123         BLI_addtail(&simage->regionbase, ar);
124         ar->regiontype= RGN_TYPE_HEADER;
125         ar->alignment= RGN_ALIGN_BOTTOM;
126         
127         /* buttons/list view */
128         ar= MEM_callocN(sizeof(ARegion), "buttons for image");
129         
130         BLI_addtail(&simage->regionbase, ar);
131         ar->regiontype= RGN_TYPE_UI;
132         ar->alignment= RGN_ALIGN_LEFT;
133         ar->flag = RGN_FLAG_HIDDEN;
134         
135         /* main area */
136         ar= MEM_callocN(sizeof(ARegion), "main area for image");
137         
138         BLI_addtail(&simage->regionbase, ar);
139         ar->regiontype= RGN_TYPE_WINDOW;
140         
141         return (SpaceLink *)simage;
142 }
143
144 /* not spacelink itself */
145 static void image_free(SpaceLink *sl)
146 {       
147         SpaceImage *simage= (SpaceImage*) sl;
148         
149         if(simage->cumap)
150                 curvemapping_free(simage->cumap);
151 //      if(simage->gpd)
152 // XXX          free_gpencil_data(simage->gpd);
153         
154 }
155
156
157 /* spacetype; init callback */
158 static void image_init(struct wmWindowManager *wm, ScrArea *sa)
159 {
160
161 }
162
163 static SpaceLink *image_duplicate(SpaceLink *sl)
164 {
165         SpaceImage *simagen= MEM_dupallocN(sl);
166         
167         /* clear or remove stuff from old */
168         if(simagen->cumap)
169                 simagen->cumap= curvemapping_copy(simagen->cumap);
170         
171         return (SpaceLink *)simagen;
172 }
173
174 void image_operatortypes(void)
175 {
176         WM_operatortype_append(IMAGE_OT_view_all);
177         WM_operatortype_append(IMAGE_OT_view_pan);
178         WM_operatortype_append(IMAGE_OT_view_selected);
179         WM_operatortype_append(IMAGE_OT_view_zoom);
180         WM_operatortype_append(IMAGE_OT_view_zoom_in);
181         WM_operatortype_append(IMAGE_OT_view_zoom_out);
182         WM_operatortype_append(IMAGE_OT_view_zoom_ratio);
183
184         WM_operatortype_append(IMAGE_OT_new);
185         WM_operatortype_append(IMAGE_OT_open);
186         WM_operatortype_append(IMAGE_OT_replace);
187         WM_operatortype_append(IMAGE_OT_reload);
188         WM_operatortype_append(IMAGE_OT_save);
189         WM_operatortype_append(IMAGE_OT_save_as);
190         WM_operatortype_append(IMAGE_OT_save_sequence);
191         WM_operatortype_append(IMAGE_OT_pack);
192         WM_operatortype_append(IMAGE_OT_unpack);
193
194         WM_operatortype_append(IMAGE_OT_sample);
195         WM_operatortype_append(IMAGE_OT_curves_point_set);
196
197         WM_operatortype_append(IMAGE_OT_record_composite);
198
199         WM_operatortype_append(IMAGE_OT_toolbox);
200         WM_operatortype_append(IMAGE_OT_properties);
201 }
202
203 void image_keymap(struct wmWindowManager *wm)
204 {
205         ListBase *keymap= WM_keymap_listbase(wm, "Image Generic", SPACE_IMAGE, 0);
206         
207         WM_keymap_add_item(keymap, "IMAGE_OT_new", NKEY, KM_PRESS, KM_ALT, 0);
208         WM_keymap_add_item(keymap, "IMAGE_OT_open", OKEY, KM_PRESS, KM_ALT, 0);
209         WM_keymap_add_item(keymap, "IMAGE_OT_reload", RKEY, KM_PRESS, KM_ALT, 0);
210         WM_keymap_add_item(keymap, "IMAGE_OT_save", SKEY, KM_PRESS, KM_ALT, 0);
211         WM_keymap_add_item(keymap, "IMAGE_OT_properties", NKEY, KM_PRESS, 0, 0);
212         
213         keymap= WM_keymap_listbase(wm, "Image", SPACE_IMAGE, 0);
214         
215         WM_keymap_add_item(keymap, "IMAGE_OT_view_all", HOMEKEY, KM_PRESS, 0, 0);
216         WM_keymap_add_item(keymap, "IMAGE_OT_view_selected", PADPERIOD, KM_PRESS, 0, 0);
217         WM_keymap_add_item(keymap, "IMAGE_OT_view_pan", MIDDLEMOUSE, KM_PRESS, 0, 0);
218
219         WM_keymap_add_item(keymap, "IMAGE_OT_view_zoom_in", WHEELINMOUSE, KM_PRESS, 0, 0);
220         WM_keymap_add_item(keymap, "IMAGE_OT_view_zoom_out", WHEELOUTMOUSE, KM_PRESS, 0, 0);
221         WM_keymap_add_item(keymap, "IMAGE_OT_view_zoom_in", PADPLUSKEY, KM_PRESS, 0, 0);
222         WM_keymap_add_item(keymap, "IMAGE_OT_view_zoom_out", PADMINUS, KM_PRESS, 0, 0);
223         WM_keymap_add_item(keymap, "IMAGE_OT_view_zoom", MIDDLEMOUSE, KM_PRESS, KM_CTRL, 0);
224
225         RNA_float_set(WM_keymap_add_item(keymap, "IMAGE_OT_view_zoom_ratio", PAD8, KM_PRESS, KM_SHIFT, 0)->ptr, "ratio", 8.0f);
226         RNA_float_set(WM_keymap_add_item(keymap, "IMAGE_OT_view_zoom_ratio", PAD4, KM_PRESS, KM_SHIFT, 0)->ptr, "ratio", 4.0f);
227         RNA_float_set(WM_keymap_add_item(keymap, "IMAGE_OT_view_zoom_ratio", PAD2, KM_PRESS, KM_SHIFT, 0)->ptr, "ratio", 2.0f);
228         RNA_float_set(WM_keymap_add_item(keymap, "IMAGE_OT_view_zoom_ratio", PAD1, KM_PRESS, 0, 0)->ptr, "ratio", 1.0f);
229         RNA_float_set(WM_keymap_add_item(keymap, "IMAGE_OT_view_zoom_ratio", PAD2, KM_PRESS, 0, 0)->ptr, "ratio", 0.5f);
230         RNA_float_set(WM_keymap_add_item(keymap, "IMAGE_OT_view_zoom_ratio", PAD4, KM_PRESS, 0, 0)->ptr, "ratio", 0.25f);
231         RNA_float_set(WM_keymap_add_item(keymap, "IMAGE_OT_view_zoom_ratio", PAD8, KM_PRESS, 0, 0)->ptr, "ratio", 0.125f);
232
233         WM_keymap_add_item(keymap, "PAINT_OT_image_paint", ACTIONMOUSE, KM_PRESS, 0, 0);
234         WM_keymap_add_item(keymap, "PAINT_OT_grab_clone", SELECTMOUSE, KM_PRESS, 0, 0);
235         WM_keymap_add_item(keymap, "PAINT_OT_sample_color", SELECTMOUSE, KM_PRESS, 0, 0);
236         RNA_enum_set(WM_keymap_add_item(keymap, "PAINT_OT_image_paint_radial_control", FKEY, KM_PRESS, 0, 0)->ptr, "mode", WM_RADIALCONTROL_SIZE);
237         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);
238
239         WM_keymap_add_item(keymap, "IMAGE_OT_sample", ACTIONMOUSE, KM_PRESS, 0, 0);
240         RNA_enum_set(WM_keymap_add_item(keymap, "IMAGE_OT_curves_point_set", ACTIONMOUSE, KM_PRESS, KM_CTRL, 0)->ptr, "point", 0);
241         RNA_enum_set(WM_keymap_add_item(keymap, "IMAGE_OT_curves_point_set", ACTIONMOUSE, KM_PRESS, KM_SHIFT, 0)->ptr, "point", 1);
242
243         WM_keymap_add_item(keymap, "IMAGE_OT_toolbox", SPACEKEY, KM_PRESS, 0, 0);
244 }
245
246 static void image_refresh(const bContext *C, ScrArea *sa)
247 {
248         SpaceImage *sima= (SpaceImage*)CTX_wm_space_data(C);
249         Object *obedit= CTX_data_edit_object(C);
250         Image *ima;
251
252         ima= ED_space_image(sima);
253
254         /* check if we have to set the image from the editmesh */
255         if(ima && (ima->source==IMA_SRC_VIEWER || sima->pin));
256         else if(obedit && obedit->type == OB_MESH) {
257                 Mesh *me= (Mesh*)obedit->data;
258                 EditMesh *em= BKE_mesh_get_editmesh(me);
259                 MTFace *tf;
260                 
261                 if(em && EM_texFaceCheck(em)) {
262                         sima->image= ima= NULL;
263                         
264                         tf = EM_get_active_mtface(em, NULL, NULL, 1); /* partially selected face is ok */
265                         
266                         if(tf && (tf->mode & TF_TEX)) {
267                                 /* don't need to check for pin here, see above */
268                                 sima->image= ima= tf->tpage;
269                                 
270                                 if(sima->flag & SI_EDITTILE);
271                                 else sima->curtile= tf->tile;
272                                 
273                                 if(ima) {
274                                         if(tf->mode & TF_TILES)
275                                                 ima->tpageflag |= IMA_TILES;
276                                         else
277                                                 ima->tpageflag &= ~IMA_TILES;
278                                 }
279                         }
280                 }
281
282                 BKE_mesh_end_editmesh(obedit->data, em);
283         }
284 }
285
286 static void image_listener(ScrArea *sa, wmNotifier *wmn)
287 {
288         SpaceImage *sima= sa->spacedata.first;
289
290         /* context changes */
291         switch(wmn->category) {
292                 case NC_SCENE:
293                         switch(wmn->data) {
294                                 case ND_MODE:
295                                 case ND_RENDER_RESULT:
296                                 case ND_COMPO_RESULT:
297                                         ED_area_tag_refresh(sa);
298                                         ED_area_tag_redraw(sa);
299                                         break;
300                         }
301                         break;
302                 case NC_IMAGE:  
303                         if(!wmn->reference || wmn->reference == sima->image)
304                                 ED_area_tag_redraw(sa);
305                         break;
306         }
307 }
308
309 static int image_context(const bContext *C, const char *member, bContextDataResult *result)
310 {
311         SpaceImage *sima= (SpaceImage*)CTX_wm_space_data(C);
312
313         if(CTX_data_equals(member, "edit_image")) {
314                 CTX_data_id_pointer_set(result, (ID*)ED_space_image(sima));
315                 return 1;
316         }
317
318         return 0;
319 }
320
321 /************************** main region ***************************/
322
323 /* sets up the fields of the View2D from zoom and offset */
324 static void image_main_area_set_view2d(SpaceImage *sima, ARegion *ar, Scene *scene)
325 {
326         Image *ima= ED_space_image(sima);
327         float x1, y1, w, h;
328         int width, height, winx, winy;
329         
330 #if 0
331         if(image_preview_active(curarea, &width, &height));
332 #endif
333         if(sima->image) {
334                 ImBuf *ibuf= ED_space_image_buffer(sima);
335                 float xuser_asp, yuser_asp;
336                 
337                 ED_image_aspect(sima->image, &xuser_asp, &yuser_asp);
338                 if(ibuf) {
339                         width= ibuf->x*xuser_asp;
340                         height= ibuf->y*yuser_asp;
341                 }
342                 else if(sima->image->type==IMA_TYPE_R_RESULT) {
343                         /* not very important, just nice */
344                         width= (scene->r.xsch*scene->r.size)/100;
345                         height= (scene->r.ysch*scene->r.size)/100;
346                 }
347                 else
348                         ED_space_image_size(sima, &width, &height);
349         }
350         else
351                 ED_space_image_size(sima, &width, &height);
352
353         w= width;
354         h= height;
355         
356         if(ima)
357                 h *= ima->aspy/ima->aspx;
358
359         winx= ar->winrct.xmax - ar->winrct.xmin + 1;
360         winy= ar->winrct.ymax - ar->winrct.ymin + 1;
361                 
362         ar->v2d.tot.xmin= 0;
363         ar->v2d.tot.ymin= 0;
364         ar->v2d.tot.xmax= w;
365         ar->v2d.tot.ymax= h;
366         
367         ar->v2d.mask.xmin= ar->v2d.mask.ymin= 0;
368         ar->v2d.mask.xmax= winx;
369         ar->v2d.mask.ymax= winy;
370
371         /* which part of the image space do we see? */
372         /* same calculation as in lrectwrite: area left and down*/
373         x1= ar->winrct.xmin+(winx-sima->zoom*w)/2;
374         y1= ar->winrct.ymin+(winy-sima->zoom*h)/2;
375
376         x1-= sima->zoom*sima->xof;
377         y1-= sima->zoom*sima->yof;
378         
379         /* relative display right */
380         ar->v2d.cur.xmin= ((ar->winrct.xmin - (float)x1)/sima->zoom);
381         ar->v2d.cur.xmax= ar->v2d.cur.xmin + ((float)winx/sima->zoom);
382         
383         /* relative display left */
384         ar->v2d.cur.ymin= ((ar->winrct.ymin-(float)y1)/sima->zoom);
385         ar->v2d.cur.ymax= ar->v2d.cur.ymin + ((float)winy/sima->zoom);
386         
387         /* normalize 0.0..1.0 */
388         ar->v2d.cur.xmin /= w;
389         ar->v2d.cur.xmax /= w;
390         ar->v2d.cur.ymin /= h;
391         ar->v2d.cur.ymax /= h;
392 }
393
394 /* add handlers, stuff you only do once or on area/region changes */
395 static void image_main_area_init(wmWindowManager *wm, ARegion *ar)
396 {
397         ListBase *keymap;
398         
399         // image space manages own v2d
400         // UI_view2d_region_reinit(&ar->v2d, V2D_COMMONVIEW_STANDARD, ar->winx, ar->winy);
401
402         /* image paint polls for mode */
403         keymap= WM_keymap_listbase(wm, "ImagePaint", SPACE_IMAGE, 0);
404         WM_event_add_keymap_handler_bb(&ar->handlers, keymap, &ar->v2d.mask, &ar->winrct);
405         
406         /* own keymaps */
407         keymap= WM_keymap_listbase(wm, "Image Generic", SPACE_IMAGE, 0);
408         WM_event_add_keymap_handler(&ar->handlers, keymap);
409         keymap= WM_keymap_listbase(wm, "Image", SPACE_IMAGE, 0);
410         WM_event_add_keymap_handler_bb(&ar->handlers, keymap, &ar->v2d.mask, &ar->winrct);
411 }
412
413 static void image_main_area_draw(const bContext *C, ARegion *ar)
414 {
415         /* draw entirely, view changes should be handled here */
416         SpaceImage *sima= (SpaceImage*)CTX_wm_space_data(C);
417         Object *obedit= CTX_data_edit_object(C);
418         Scene *scene= CTX_data_scene(C);
419         View2D *v2d= &ar->v2d;
420         //View2DScrollers *scrollers;
421         float col[3];
422         
423         /* clear and setup matrix */
424         UI_GetThemeColor3fv(TH_BACK, col);
425         glClearColor(col[0], col[1], col[2], 0.0);
426         glClear(GL_COLOR_BUFFER_BIT);
427         
428         /* we set view2d from own zoom and offset each time */
429         image_main_area_set_view2d(sima, ar, scene);
430                 
431         /* we draw image in pixelspace */
432         draw_image_main(sima, ar, scene);
433
434         /* and uvs in 0.0-1.0 space */
435         UI_view2d_view_ortho(C, v2d);
436         draw_uvedit_main(sima, ar, scene, obedit);
437         ED_region_draw_cb_draw(C, ar, REGION_DRAW_POST);
438         UI_view2d_view_restore(C);
439         
440         /* scrollers? */
441         /*scrollers= UI_view2d_scrollers_calc(C, v2d, V2D_UNIT_VALUES, V2D_GRID_CLAMP, V2D_ARG_DUMMY, V2D_ARG_DUMMY);
442         UI_view2d_scrollers_draw(C, v2d, scrollers);
443         UI_view2d_scrollers_free(scrollers);*/
444 }
445
446 static void image_modal_keymaps(wmWindowManager *wm, ARegion *ar, int stype)
447 {
448         ListBase *keymap;
449         
450         keymap= WM_keymap_listbase(wm, "UVEdit", 0, 0);
451
452         if(stype==NS_EDITMODE_MESH)
453                 WM_event_add_keymap_handler(&ar->handlers, keymap);
454         else
455                 WM_event_remove_keymap_handler(&ar->handlers, keymap);
456 }
457
458 static void image_main_area_listener(ARegion *ar, wmNotifier *wmn)
459 {
460         /* context changes */
461         switch(wmn->category) {
462                 case NC_SCENE:
463                         switch(wmn->data) {
464                                 case ND_MODE:
465                                         image_modal_keymaps(wmn->wm, ar, wmn->subtype);
466                                         break;
467                         }
468                         break;
469                 case NC_OBJECT:
470                         switch(wmn->data) {
471                                 case ND_GEOM_SELECT:
472                                 case ND_GEOM_DATA:
473                                         ED_region_tag_redraw(ar);
474                                         break;
475                         }
476         }
477 }
478
479 /* *********************** buttons region ************************ */
480
481 /* add handlers, stuff you only do once or on area/region changes */
482 static void image_buttons_area_init(wmWindowManager *wm, ARegion *ar)
483 {
484         ListBase *keymap;
485         
486         keymap= WM_keymap_listbase(wm, "View2D Buttons List", 0, 0);
487         WM_event_add_keymap_handler(&ar->handlers, keymap);
488         keymap= WM_keymap_listbase(wm, "Image Generic", SPACE_IMAGE, 0);
489         WM_event_add_keymap_handler(&ar->handlers, keymap);
490         
491         UI_view2d_region_reinit(&ar->v2d, V2D_COMMONVIEW_LIST_UI, ar->winx, ar->winy);
492 }
493
494 static void image_buttons_area_draw(const bContext *C, ARegion *ar)
495 {
496         float col[3];
497         
498         /* clear */
499         UI_GetThemeColor3fv(TH_PANEL, col);
500         
501         glClearColor(col[0], col[1], col[2], 0.0);
502         glClear(GL_COLOR_BUFFER_BIT);
503         
504         /* set view2d view matrix for scrolling (without scrollers) */
505         UI_view2d_view_ortho(C, &ar->v2d);
506         
507         image_buttons_area_defbuts(C, ar);
508         
509         /* restore view matrix? */
510         UI_view2d_view_restore(C);
511 }
512
513 static void image_buttons_area_listener(ARegion *ar, wmNotifier *wmn)
514 {
515         /* context changes */
516         switch(wmn->category) {
517                 
518         }
519 }
520
521 /************************* header region **************************/
522
523 /* add handlers, stuff you only do once or on area/region changes */
524 static void image_header_area_init(wmWindowManager *wm, ARegion *ar)
525 {
526         UI_view2d_region_reinit(&ar->v2d, V2D_COMMONVIEW_HEADER, ar->winx, ar->winy);
527 }
528
529 static void image_header_area_draw(const bContext *C, ARegion *ar)
530 {
531         float col[3];
532         
533         /* clear */
534         if(ED_screen_area_active(C))
535                 UI_GetThemeColor3fv(TH_HEADER, col);
536         else
537                 UI_GetThemeColor3fv(TH_HEADERDESEL, col);
538         
539         glClearColor(col[0], col[1], col[2], 0.0);
540         glClear(GL_COLOR_BUFFER_BIT);
541         
542         /* set view2d view matrix for scrolling (without scrollers) */
543         UI_view2d_view_ortho(C, &ar->v2d);
544         
545         image_header_buttons(C, ar);
546         
547         /* restore view matrix? */
548         UI_view2d_view_restore(C);
549 }
550
551 /**************************** spacetype *****************************/
552
553 /* only called once, from space/spacetypes.c */
554 void ED_spacetype_image(void)
555 {
556         SpaceType *st= MEM_callocN(sizeof(SpaceType), "spacetype image");
557         ARegionType *art;
558         
559         st->spaceid= SPACE_IMAGE;
560         
561         st->new= image_new;
562         st->free= image_free;
563         st->init= image_init;
564         st->duplicate= image_duplicate;
565         st->operatortypes= image_operatortypes;
566         st->keymap= image_keymap;
567         st->refresh= image_refresh;
568         st->listener= image_listener;
569         st->context= image_context;
570         
571         /* regions: main window */
572         art= MEM_callocN(sizeof(ARegionType), "spacetype image region");
573         art->regionid = RGN_TYPE_WINDOW;
574         art->keymapflag= ED_KEYMAP_FRAMES;
575         art->init= image_main_area_init;
576         art->draw= image_main_area_draw;
577         art->listener= image_main_area_listener;
578         art->keymapflag= 0;
579
580         BLI_addhead(&st->regiontypes, art);
581         
582         /* regions: listview/buttons */
583         art= MEM_callocN(sizeof(ARegionType), "spacetype image region");
584         art->regionid = RGN_TYPE_UI;
585         art->minsizex= 220; // XXX
586         art->keymapflag= ED_KEYMAP_UI|ED_KEYMAP_FRAMES;
587         art->listener= image_buttons_area_listener;
588         art->init= image_buttons_area_init;
589         art->draw= image_buttons_area_draw;
590         BLI_addhead(&st->regiontypes, art);
591
592         /* regions: header */
593         art= MEM_callocN(sizeof(ARegionType), "spacetype image region");
594         art->regionid = RGN_TYPE_HEADER;
595         art->minsizey= HEADERY;
596         art->keymapflag= ED_KEYMAP_UI|ED_KEYMAP_VIEW2D|ED_KEYMAP_FRAMES;
597         art->init= image_header_area_init;
598         art->draw= image_header_area_draw;
599         
600         BLI_addhead(&st->regiontypes, art);
601         
602         
603         BKE_spacetype_register(st);
604 }
605
606 /**************************** common state *****************************/
607
608 /* note; image_panel_properties() uses pointer to sima->image directly */
609 Image *ED_space_image(SpaceImage *sima)
610 {
611         return sima->image;
612 }
613
614 /* called to assign images to UV faces */
615 void ED_space_image_set(bContext *C, SpaceImage *sima, Scene *scene, Object *obedit, Image *ima)
616 {
617         ED_uvedit_assign_image(scene, obedit, ima, sima->image);
618
619         /* change the space ima after because uvedit_face_visible uses the space ima
620          * to check if the face is displayed in UV-localview */
621         sima->image= ima;
622
623         if(ima == NULL || ima->type==IMA_TYPE_R_RESULT || ima->type==IMA_TYPE_COMPOSITE)
624                 sima->flag &= ~SI_DRAWTOOL;
625
626         if(sima->image)
627                 BKE_image_signal(sima->image, &sima->iuser, IMA_SIGNAL_USER_NEW_IMAGE);
628
629         if(sima->image && sima->image->id.us==0)
630                 sima->image->id.us= 1;
631
632         if(obedit)
633                 WM_event_add_notifier(C, NC_OBJECT|ND_GEOM_DATA, obedit);
634
635         ED_area_tag_redraw(CTX_wm_area(C));
636 }
637
638 ImBuf *ED_space_image_buffer(SpaceImage *sima)
639 {
640         ImBuf *ibuf;
641
642         if(sima->image) {
643 #if 0
644                 if(sima->image->type==IMA_TYPE_R_RESULT && BIF_show_render_spare())
645                         return BIF_render_spare_imbuf();
646                 else
647 #endif
648                         ibuf= BKE_image_get_ibuf(sima->image, &sima->iuser);
649
650                 if(ibuf && (ibuf->rect || ibuf->rect_float))
651                         return ibuf;
652         }
653
654         return NULL;
655 }
656
657 void ED_image_size(Image *ima, int *width, int *height)
658 {
659         ImBuf *ibuf;
660
661         ibuf= (ima)? BKE_image_get_ibuf(ima, NULL): NULL;
662
663         if(ibuf && ibuf->x > 0 && ibuf->y > 0) {
664                 *width= ibuf->x;
665                 *height= ibuf->y;
666         }
667         else {
668                 *width= 256;
669                 *height= 256;
670         }
671 }
672
673 void ED_space_image_size(SpaceImage *sima, int *width, int *height)
674 {
675         ImBuf *ibuf;
676
677         ibuf= ED_space_image_buffer(sima);
678
679         if(ibuf && ibuf->x > 0 && ibuf->y > 0) {
680                 *width= ibuf->x;
681                 *height= ibuf->y;
682         }
683         /* I know a bit weak... but preview uses not actual image size */
684         // XXX else if(image_preview_active(sima, width, height));
685         else {
686                 *width= 256;
687                 *height= 256;
688         }
689 }
690
691 void ED_image_aspect(Image *ima, float *aspx, float *aspy)
692 {
693         *aspx= *aspy= 1.0;
694
695         if((ima == NULL) || (ima->type == IMA_TYPE_R_RESULT) || (ima->type == IMA_TYPE_COMPOSITE) ||
696            (ima->tpageflag & IMA_TILES) || (ima->aspx==0.0 || ima->aspy==0.0))
697                 return;
698
699         /* x is always 1 */
700         *aspy = ima->aspy/ima->aspx;
701 }
702
703 void ED_space_image_aspect(SpaceImage *sima, float *aspx, float *aspy)
704 {
705         ED_image_aspect(ED_space_image(sima), aspx, aspy);
706 }
707
708 void ED_space_image_zoom(SpaceImage *sima, ARegion *ar, float *zoomx, float *zoomy)
709 {
710         int width, height;
711
712         ED_space_image_size(sima, &width, &height);
713
714         *zoomx= (float)(ar->winrct.xmax - ar->winrct.xmin)/(float)((ar->v2d.cur.xmax - ar->v2d.cur.xmin)*width);
715         *zoomy= (float)(ar->winrct.ymax - ar->winrct.ymin)/(float)((ar->v2d.cur.ymax - ar->v2d.cur.ymin)*height);
716 }
717
718 void ED_space_image_uv_aspect(SpaceImage *sima, float *aspx, float *aspy)
719 {
720         int w, h;
721
722         ED_space_image_aspect(sima, aspx, aspy);
723         ED_space_image_size(sima, &w, &h);
724
725         *aspx *= (float)w/256.0f;
726         *aspy *= (float)h/256.0f;
727 }
728
729 void ED_image_uv_aspect(Image *ima, float *aspx, float *aspy)
730 {
731         int w, h;
732
733         ED_image_aspect(ima, aspx, aspy);
734         ED_image_size(ima, &w, &h);
735
736         *aspx *= (float)w;
737         *aspy *= (float)h;
738 }
739
740 int ED_space_image_show_render(SpaceImage *sima)
741 {
742         return (sima->image && ELEM(sima->image->type, IMA_TYPE_R_RESULT, IMA_TYPE_COMPOSITE));
743 }
744
745 int ED_space_image_show_paint(SpaceImage *sima)
746 {
747         if(ED_space_image_show_render(sima))
748                 return 0;
749
750         return (sima->flag & SI_DRAWTOOL);
751 }
752
753 int ED_space_image_show_uvedit(SpaceImage *sima, Object *obedit)
754 {
755         if(ED_space_image_show_render(sima))
756                 return 0;
757         if(ED_space_image_show_paint(sima))
758                 return 0;
759
760         if(obedit && obedit->type == OB_MESH) {
761                 EditMesh *em = BKE_mesh_get_editmesh(obedit->data);
762                 int ret;
763         
764                 ret = EM_texFaceCheck(em);
765
766                 BKE_mesh_end_editmesh(obedit->data, em);
767                 return ret;
768         }
769
770         return 0;
771 }
772
773 int ED_space_image_show_uvshadow(SpaceImage *sima, Object *obedit)
774 {
775         if(ED_space_image_show_render(sima))
776                 return 0;
777
778         if(ED_space_image_show_paint(sima))
779                 if(obedit && obedit->type == OB_MESH) {
780                         EditMesh *em = BKE_mesh_get_editmesh(obedit->data);
781                         int ret;
782
783                         ret = EM_texFaceCheck(em);
784
785                         BKE_mesh_end_editmesh(obedit->data, em);
786                         return ret;
787                 }
788
789         return 0;
790 }
791