svn merge https://svn.blender.org/svnroot/bf-blender/trunk/blender -r23023:HEAD
[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_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_gpencil.h"
58 #include "ED_image.h"
59 #include "ED_mesh.h"
60 #include "ED_space_api.h"
61 #include "ED_screen.h"
62 #include "ED_uvedit.h"
63
64 #include "BIF_gl.h"
65 #include "BIF_glutil.h"
66
67 #include "RNA_access.h"
68
69 #include "WM_api.h"
70 #include "WM_types.h"
71
72 #include "UI_interface.h"
73 #include "UI_resources.h"
74 #include "UI_view2d.h"
75
76 #include "image_intern.h"
77
78 /* ******************** manage regions ********************* */
79
80 ARegion *image_has_buttons_region(ScrArea *sa)
81 {
82         ARegion *ar, *arnew;
83         
84         for(ar= sa->regionbase.first; ar; ar= ar->next)
85                 if(ar->regiontype==RGN_TYPE_UI)
86                         return ar;
87         
88         /* add subdiv level; after header */
89         for(ar= sa->regionbase.first; ar; ar= ar->next)
90                 if(ar->regiontype==RGN_TYPE_HEADER)
91                         break;
92         
93         /* is error! */
94         if(ar==NULL) return NULL;
95         
96         arnew= MEM_callocN(sizeof(ARegion), "buttons for image");
97         
98         BLI_insertlinkafter(&sa->regionbase, ar, arnew);
99         arnew->regiontype= RGN_TYPE_UI;
100         arnew->alignment= RGN_ALIGN_LEFT;
101         
102         arnew->flag = RGN_FLAG_HIDDEN;
103         
104         return arnew;
105 }
106
107 /* ******************** default callbacks for image space ***************** */
108
109 static SpaceLink *image_new(const bContext *C)
110 {
111         ARegion *ar;
112         SpaceImage *simage;
113         
114         simage= MEM_callocN(sizeof(SpaceImage), "initimage");
115         simage->spacetype= SPACE_IMAGE;
116         simage->zoom= 1;
117         
118         simage->iuser.ok= 1;
119         simage->iuser.fie_ima= 2;
120         simage->iuser.frames= 100;
121         
122         /* header */
123         ar= MEM_callocN(sizeof(ARegion), "header for image");
124         
125         BLI_addtail(&simage->regionbase, ar);
126         ar->regiontype= RGN_TYPE_HEADER;
127         ar->alignment= RGN_ALIGN_BOTTOM;
128         
129         /* buttons/list view */
130         ar= MEM_callocN(sizeof(ARegion), "buttons for image");
131         
132         BLI_addtail(&simage->regionbase, ar);
133         ar->regiontype= RGN_TYPE_UI;
134         ar->alignment= RGN_ALIGN_LEFT;
135         ar->flag = RGN_FLAG_HIDDEN;
136         
137         /* main area */
138         ar= MEM_callocN(sizeof(ARegion), "main area for image");
139         
140         BLI_addtail(&simage->regionbase, ar);
141         ar->regiontype= RGN_TYPE_WINDOW;
142         
143         return (SpaceLink *)simage;
144 }
145
146 /* not spacelink itself */
147 static void image_free(SpaceLink *sl)
148 {       
149         SpaceImage *simage= (SpaceImage*) sl;
150         
151         if(simage->cumap)
152                 curvemapping_free(simage->cumap);
153 //      if(simage->gpd)
154 // XXX          free_gpencil_data(simage->gpd);
155         
156 }
157
158
159 /* spacetype; init callback */
160 static void image_init(struct wmWindowManager *wm, ScrArea *sa)
161 {
162
163 }
164
165 static SpaceLink *image_duplicate(SpaceLink *sl)
166 {
167         SpaceImage *simagen= MEM_dupallocN(sl);
168         
169         /* clear or remove stuff from old */
170         if(simagen->cumap)
171                 simagen->cumap= curvemapping_copy(simagen->cumap);
172         
173         return (SpaceLink *)simagen;
174 }
175
176 void image_operatortypes(void)
177 {
178         WM_operatortype_append(IMAGE_OT_view_all);
179         WM_operatortype_append(IMAGE_OT_view_pan);
180         WM_operatortype_append(IMAGE_OT_view_selected);
181         WM_operatortype_append(IMAGE_OT_view_zoom);
182         WM_operatortype_append(IMAGE_OT_view_zoom_in);
183         WM_operatortype_append(IMAGE_OT_view_zoom_out);
184         WM_operatortype_append(IMAGE_OT_view_zoom_ratio);
185
186         WM_operatortype_append(IMAGE_OT_new);
187         WM_operatortype_append(IMAGE_OT_open);
188         WM_operatortype_append(IMAGE_OT_replace);
189         WM_operatortype_append(IMAGE_OT_reload);
190         WM_operatortype_append(IMAGE_OT_save);
191         WM_operatortype_append(IMAGE_OT_save_as);
192         WM_operatortype_append(IMAGE_OT_save_sequence);
193         WM_operatortype_append(IMAGE_OT_pack);
194         WM_operatortype_append(IMAGE_OT_unpack);
195
196         WM_operatortype_append(IMAGE_OT_sample);
197         WM_operatortype_append(IMAGE_OT_curves_point_set);
198
199         WM_operatortype_append(IMAGE_OT_record_composite);
200
201         WM_operatortype_append(IMAGE_OT_toolbox);
202         WM_operatortype_append(IMAGE_OT_properties);
203 }
204
205 void image_keymap(struct wmWindowManager *wm)
206 {
207         ListBase *keymap= WM_keymap_listbase(wm, "Image Generic", SPACE_IMAGE, 0);
208         
209         WM_keymap_add_item(keymap, "IMAGE_OT_new", NKEY, KM_PRESS, KM_ALT, 0);
210         WM_keymap_add_item(keymap, "IMAGE_OT_open", OKEY, KM_PRESS, KM_ALT, 0);
211         WM_keymap_add_item(keymap, "IMAGE_OT_reload", RKEY, KM_PRESS, KM_ALT, 0);
212         WM_keymap_add_item(keymap, "IMAGE_OT_save", SKEY, KM_PRESS, KM_ALT, 0);
213         WM_keymap_add_item(keymap, "IMAGE_OT_properties", NKEY, KM_PRESS, 0, 0);
214         
215         keymap= WM_keymap_listbase(wm, "Image", SPACE_IMAGE, 0);
216         
217         WM_keymap_add_item(keymap, "IMAGE_OT_view_all", HOMEKEY, KM_PRESS, 0, 0);
218         WM_keymap_add_item(keymap, "IMAGE_OT_view_selected", PADPERIOD, KM_PRESS, 0, 0);
219         WM_keymap_add_item(keymap, "IMAGE_OT_view_pan", MIDDLEMOUSE, KM_PRESS, 0, 0);
220
221         WM_keymap_add_item(keymap, "IMAGE_OT_view_zoom_in", WHEELINMOUSE, KM_PRESS, 0, 0);
222         WM_keymap_add_item(keymap, "IMAGE_OT_view_zoom_out", WHEELOUTMOUSE, KM_PRESS, 0, 0);
223         WM_keymap_add_item(keymap, "IMAGE_OT_view_zoom_in", PADPLUSKEY, KM_PRESS, 0, 0);
224         WM_keymap_add_item(keymap, "IMAGE_OT_view_zoom_out", PADMINUS, KM_PRESS, 0, 0);
225         WM_keymap_add_item(keymap, "IMAGE_OT_view_zoom", MIDDLEMOUSE, KM_PRESS, KM_CTRL, 0);
226
227         RNA_float_set(WM_keymap_add_item(keymap, "IMAGE_OT_view_zoom_ratio", PAD8, KM_PRESS, KM_SHIFT, 0)->ptr, "ratio", 8.0f);
228         RNA_float_set(WM_keymap_add_item(keymap, "IMAGE_OT_view_zoom_ratio", PAD4, KM_PRESS, KM_SHIFT, 0)->ptr, "ratio", 4.0f);
229         RNA_float_set(WM_keymap_add_item(keymap, "IMAGE_OT_view_zoom_ratio", PAD2, KM_PRESS, KM_SHIFT, 0)->ptr, "ratio", 2.0f);
230         RNA_float_set(WM_keymap_add_item(keymap, "IMAGE_OT_view_zoom_ratio", PAD1, KM_PRESS, 0, 0)->ptr, "ratio", 1.0f);
231         RNA_float_set(WM_keymap_add_item(keymap, "IMAGE_OT_view_zoom_ratio", PAD2, KM_PRESS, 0, 0)->ptr, "ratio", 0.5f);
232         RNA_float_set(WM_keymap_add_item(keymap, "IMAGE_OT_view_zoom_ratio", PAD4, KM_PRESS, 0, 0)->ptr, "ratio", 0.25f);
233         RNA_float_set(WM_keymap_add_item(keymap, "IMAGE_OT_view_zoom_ratio", PAD8, KM_PRESS, 0, 0)->ptr, "ratio", 0.125f);
234
235         WM_keymap_add_item(keymap, "PAINT_OT_image_paint", ACTIONMOUSE, KM_PRESS, 0, 0);
236         WM_keymap_add_item(keymap, "PAINT_OT_grab_clone", SELECTMOUSE, KM_PRESS, 0, 0);
237         WM_keymap_add_item(keymap, "PAINT_OT_sample_color", SELECTMOUSE, KM_PRESS, 0, 0);
238         RNA_enum_set(WM_keymap_add_item(keymap, "PAINT_OT_image_paint_radial_control", FKEY, KM_PRESS, 0, 0)->ptr, "mode", WM_RADIALCONTROL_SIZE);
239         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);
240
241         WM_keymap_add_item(keymap, "IMAGE_OT_sample", ACTIONMOUSE, KM_PRESS, 0, 0);
242         RNA_enum_set(WM_keymap_add_item(keymap, "IMAGE_OT_curves_point_set", ACTIONMOUSE, KM_PRESS, KM_CTRL, 0)->ptr, "point", 0);
243         RNA_enum_set(WM_keymap_add_item(keymap, "IMAGE_OT_curves_point_set", ACTIONMOUSE, KM_PRESS, KM_SHIFT, 0)->ptr, "point", 1);
244
245         WM_keymap_add_item(keymap, "IMAGE_OT_toolbox", SPACEKEY, KM_PRESS, 0, 0);
246 }
247
248 static void image_refresh(const bContext *C, ScrArea *sa)
249 {
250         SpaceImage *sima= CTX_wm_space_image(C);
251         Object *obedit= CTX_data_edit_object(C);
252         Image *ima;
253
254         ima= ED_space_image(sima);
255
256         /* check if we have to set the image from the editmesh */
257         if(ima && (ima->source==IMA_SRC_VIEWER || sima->pin));
258         else if(obedit && obedit->type == OB_MESH) {
259                 Mesh *me= (Mesh*)obedit->data;
260                 EditMesh *em= BKE_mesh_get_editmesh(me);
261                 MTFace *tf;
262                 
263                 if(em && EM_texFaceCheck(em)) {
264                         sima->image= ima= NULL;
265                         
266                         tf = EM_get_active_mtface(em, NULL, NULL, 1); /* partially selected face is ok */
267                         
268                         if(tf && (tf->mode & TF_TEX)) {
269                                 /* don't need to check for pin here, see above */
270                                 sima->image= ima= tf->tpage;
271                                 
272                                 if(sima->flag & SI_EDITTILE);
273                                 else sima->curtile= tf->tile;
274                         }
275                 }
276
277                 BKE_mesh_end_editmesh(obedit->data, em);
278         }
279 }
280
281 static void image_listener(ScrArea *sa, wmNotifier *wmn)
282 {
283         /* context changes */
284         switch(wmn->category) {
285                 case NC_SCENE:
286                         switch(wmn->data) {
287                                 case ND_MODE:
288                                 case ND_RENDER_RESULT:
289                                 case ND_COMPO_RESULT:
290                                         ED_area_tag_refresh(sa);
291                                         ED_area_tag_redraw(sa);
292                                         break;
293                         }
294                         break;
295                 case NC_IMAGE:  
296                         ED_area_tag_redraw(sa);
297                         break;
298                 case NC_SPACE:  
299                         if(wmn->data == ND_SPACE_IMAGE)
300                                 ED_area_tag_redraw(sa);
301                         break;
302                 case NC_GEOM:
303                         switch(wmn->data) {
304                                 case ND_DATA:
305                                 case ND_SELECT:
306                                         ED_area_tag_redraw(sa);
307                                         break;
308                         }
309         }
310 }
311
312 static int image_context(const bContext *C, const char *member, bContextDataResult *result)
313 {
314         SpaceImage *sima= CTX_wm_space_image(C);
315
316         if(CTX_data_dir(member)) {
317                 static const char *dir[] = {"edit_image", NULL};
318                 CTX_data_dir_set(result, dir);
319         }
320         else if(CTX_data_equals(member, "edit_image")) {
321                 CTX_data_id_pointer_set(result, (ID*)ED_space_image(sima));
322                 return 1;
323         }
324
325         return 0;
326 }
327
328 /************************** main region ***************************/
329
330 /* sets up the fields of the View2D from zoom and offset */
331 static void image_main_area_set_view2d(SpaceImage *sima, ARegion *ar, Scene *scene)
332 {
333         Image *ima= ED_space_image(sima);
334         float x1, y1, w, h;
335         int width, height, winx, winy;
336         
337 #if 0
338         if(image_preview_active(curarea, &width, &height));
339 #endif
340         if(sima->image) {
341                 ImBuf *ibuf= ED_space_image_buffer(sima);
342                 
343                 if(ibuf) {
344                         width= ibuf->x;
345                         height= ibuf->y;
346                 }
347                 else if(sima->image->type==IMA_TYPE_R_RESULT) {
348                         /* not very important, just nice */
349                         width= (scene->r.xsch*scene->r.size)/100;
350                         height= (scene->r.ysch*scene->r.size)/100;
351                 }
352                 else
353                         ED_space_image_size(sima, &width, &height);
354         }
355         else
356                 ED_space_image_size(sima, &width, &height);
357
358         w= width;
359         h= height;
360         
361         if(ima)
362                 h *= ima->aspy/ima->aspx;
363
364         winx= ar->winrct.xmax - ar->winrct.xmin + 1;
365         winy= ar->winrct.ymax - ar->winrct.ymin + 1;
366                 
367         ar->v2d.tot.xmin= 0;
368         ar->v2d.tot.ymin= 0;
369         ar->v2d.tot.xmax= w;
370         ar->v2d.tot.ymax= h;
371         
372         ar->v2d.mask.xmin= ar->v2d.mask.ymin= 0;
373         ar->v2d.mask.xmax= winx;
374         ar->v2d.mask.ymax= winy;
375
376         /* which part of the image space do we see? */
377         x1= ar->winrct.xmin+(winx-sima->zoom*w)/2;
378         y1= ar->winrct.ymin+(winy-sima->zoom*h)/2;
379
380         x1-= sima->zoom*sima->xof;
381         y1-= sima->zoom*sima->yof;
382         
383         /* relative display right */
384         ar->v2d.cur.xmin= ((ar->winrct.xmin - (float)x1)/sima->zoom);
385         ar->v2d.cur.xmax= ar->v2d.cur.xmin + ((float)winx/sima->zoom);
386         
387         /* relative display left */
388         ar->v2d.cur.ymin= ((ar->winrct.ymin-(float)y1)/sima->zoom);
389         ar->v2d.cur.ymax= ar->v2d.cur.ymin + ((float)winy/sima->zoom);
390         
391         /* normalize 0.0..1.0 */
392         ar->v2d.cur.xmin /= w;
393         ar->v2d.cur.xmax /= w;
394         ar->v2d.cur.ymin /= h;
395         ar->v2d.cur.ymax /= h;
396 }
397
398 /* add handlers, stuff you only do once or on area/region changes */
399 static void image_main_area_init(wmWindowManager *wm, ARegion *ar)
400 {
401         ListBase *keymap;
402         
403         // image space manages own v2d
404         // UI_view2d_region_reinit(&ar->v2d, V2D_COMMONVIEW_STANDARD, ar->winx, ar->winy);
405
406         /* image paint polls for mode */
407         keymap= WM_keymap_listbase(wm, "ImagePaint", SPACE_IMAGE, 0);
408         WM_event_add_keymap_handler_bb(&ar->handlers, keymap, &ar->v2d.mask, &ar->winrct);
409
410         /* XXX need context here?
411         keymap= WM_keymap_listbase(wm, "UVEdit", 0, 0);
412         WM_event_add_keymap_handler(&ar->handlers, keymap);*/
413         
414         /* own keymaps */
415         keymap= WM_keymap_listbase(wm, "Image Generic", SPACE_IMAGE, 0);
416         WM_event_add_keymap_handler(&ar->handlers, keymap);
417         keymap= WM_keymap_listbase(wm, "Image", SPACE_IMAGE, 0);
418         WM_event_add_keymap_handler_bb(&ar->handlers, keymap, &ar->v2d.mask, &ar->winrct);
419 }
420
421 static void image_main_area_draw(const bContext *C, ARegion *ar)
422 {
423         /* draw entirely, view changes should be handled here */
424         SpaceImage *sima= CTX_wm_space_image(C);
425         Object *obedit= CTX_data_edit_object(C);
426         Scene *scene= CTX_data_scene(C);
427         View2D *v2d= &ar->v2d;
428         //View2DScrollers *scrollers;
429         float col[3];
430         
431         /* clear and setup matrix */
432         UI_GetThemeColor3fv(TH_BACK, col);
433         glClearColor(col[0], col[1], col[2], 0.0);
434         glClear(GL_COLOR_BUFFER_BIT);
435         
436         /* we set view2d from own zoom and offset each time */
437         image_main_area_set_view2d(sima, ar, scene);
438         
439         /* we draw image in pixelspace */
440         draw_image_main(sima, ar, scene);
441
442         /* and uvs in 0.0-1.0 space */
443         UI_view2d_view_ortho(C, v2d);
444                 draw_uvedit_main(sima, ar, scene, obedit);
445                 ED_region_draw_cb_draw(C, ar, REGION_DRAW_POST);
446                 
447                 /* Grease Pencil too (in addition to UV's) */
448                 draw_image_grease_pencil((bContext *)C, 1); 
449         UI_view2d_view_restore(C);
450         
451         /* draw Grease Pencil - screen space only */
452         draw_image_grease_pencil((bContext *)C, 0);
453         
454         /* scrollers? */
455         /*scrollers= UI_view2d_scrollers_calc(C, v2d, V2D_UNIT_VALUES, V2D_GRID_CLAMP, V2D_ARG_DUMMY, V2D_ARG_DUMMY);
456         UI_view2d_scrollers_draw(C, v2d, scrollers);
457         UI_view2d_scrollers_free(scrollers);*/
458 }
459
460 static void image_modal_keymaps(wmWindowManager *wm, ARegion *ar, int stype)
461 {
462         ListBase *keymap;
463         
464         keymap= WM_keymap_listbase(wm, "UVEdit", 0, 0);
465
466         if(stype==NS_EDITMODE_MESH)
467                 WM_event_add_keymap_handler(&ar->handlers, keymap);
468         else
469                 WM_event_remove_keymap_handler(&ar->handlers, keymap);
470 }
471
472 static void image_main_area_listener(ARegion *ar, wmNotifier *wmn)
473 {
474         /* context changes */
475         switch(wmn->category) {
476                 case NC_SCENE:
477                         switch(wmn->data) {
478                                 case ND_MODE:
479                                         image_modal_keymaps(wmn->wm, ar, wmn->subtype);
480                                         break;
481                         }
482                         break;
483         }
484 }
485
486 /* *********************** buttons region ************************ */
487
488 /* add handlers, stuff you only do once or on area/region changes */
489 static void image_buttons_area_init(wmWindowManager *wm, ARegion *ar)
490 {
491         ListBase *keymap;
492
493         ED_region_panels_init(wm, ar);
494         
495         keymap= WM_keymap_listbase(wm, "Image Generic", SPACE_IMAGE, 0);
496         WM_event_add_keymap_handler(&ar->handlers, keymap);
497 }
498
499 static void image_buttons_area_draw(const bContext *C, ARegion *ar)
500 {
501         ED_region_panels(C, ar, 1, NULL, -1);
502 }
503
504 static void image_buttons_area_listener(ARegion *ar, wmNotifier *wmn)
505 {
506         /* context changes */
507         switch(wmn->category) {
508                 
509         }
510 }
511
512 /************************* header region **************************/
513
514 /* add handlers, stuff you only do once or on area/region changes */
515 static void image_header_area_init(wmWindowManager *wm, ARegion *ar)
516 {
517 #if 0
518         UI_view2d_region_reinit(&ar->v2d, V2D_COMMONVIEW_HEADER, ar->winx, ar->winy);
519 #else
520         ED_region_header_init(ar);
521 #endif
522 }
523
524 static void image_header_area_draw(const bContext *C, ARegion *ar)
525 {
526         ED_region_header(C, ar);
527 #if 0
528         float col[3];
529         
530         /* clear */
531         if(ED_screen_area_active(C))
532                 UI_GetThemeColor3fv(TH_HEADER, col);
533         else
534                 UI_GetThemeColor3fv(TH_HEADERDESEL, col);
535         
536         glClearColor(col[0], col[1], col[2], 0.0);
537         glClear(GL_COLOR_BUFFER_BIT);
538         
539         /* set view2d view matrix for scrolling (without scrollers) */
540         UI_view2d_view_ortho(C, &ar->v2d);
541         
542         image_header_buttons(C, ar);
543         
544         /* restore view matrix? */
545         UI_view2d_view_restore(C);
546 #endif
547 }
548
549 /**************************** spacetype *****************************/
550
551 /* only called once, from space/spacetypes.c */
552 void ED_spacetype_image(void)
553 {
554         SpaceType *st= MEM_callocN(sizeof(SpaceType), "spacetype image");
555         ARegionType *art;
556         
557         st->spaceid= SPACE_IMAGE;
558         
559         st->new= image_new;
560         st->free= image_free;
561         st->init= image_init;
562         st->duplicate= image_duplicate;
563         st->operatortypes= image_operatortypes;
564         st->keymap= image_keymap;
565         st->refresh= image_refresh;
566         st->listener= image_listener;
567         st->context= image_context;
568         
569         /* regions: main window */
570         art= MEM_callocN(sizeof(ARegionType), "spacetype image region");
571         art->regionid = RGN_TYPE_WINDOW;
572         art->keymapflag= ED_KEYMAP_FRAMES|ED_KEYMAP_GPENCIL;
573         art->init= image_main_area_init;
574         art->draw= image_main_area_draw;
575         art->listener= image_main_area_listener;
576
577         BLI_addhead(&st->regiontypes, art);
578         
579         /* regions: listview/buttons */
580         art= MEM_callocN(sizeof(ARegionType), "spacetype image region");
581         art->regionid = RGN_TYPE_UI;
582         art->minsizex= 220; // XXX
583         art->keymapflag= ED_KEYMAP_UI|ED_KEYMAP_FRAMES;
584         art->listener= image_buttons_area_listener;
585         art->init= image_buttons_area_init;
586         art->draw= image_buttons_area_draw;
587         BLI_addhead(&st->regiontypes, art);
588
589         image_buttons_register(art);
590
591         /* regions: header */
592         art= MEM_callocN(sizeof(ARegionType), "spacetype image region");
593         art->regionid = RGN_TYPE_HEADER;
594         art->minsizey= HEADERY;
595         art->keymapflag= ED_KEYMAP_UI|ED_KEYMAP_VIEW2D|ED_KEYMAP_FRAMES;
596         art->init= image_header_area_init;
597         art->draw= image_header_area_draw;
598         
599         BLI_addhead(&st->regiontypes, art);
600         
601         BKE_spacetype_register(st);
602 }
603
604 /**************************** common state *****************************/
605
606 /* note; image_panel_properties() uses pointer to sima->image directly */
607 Image *ED_space_image(SpaceImage *sima)
608 {
609         return sima->image;
610 }
611
612 /* called to assign images to UV faces */
613 void ED_space_image_set(bContext *C, SpaceImage *sima, Scene *scene, Object *obedit, Image *ima)
614 {
615         ED_uvedit_assign_image(scene, obedit, ima, sima->image);
616
617         /* change the space ima after because uvedit_face_visible uses the space ima
618          * to check if the face is displayed in UV-localview */
619         sima->image= ima;
620
621         if(ima == NULL || ima->type==IMA_TYPE_R_RESULT || ima->type==IMA_TYPE_COMPOSITE)
622                 sima->flag &= ~SI_DRAWTOOL;
623
624         if(sima->image)
625                 BKE_image_signal(sima->image, &sima->iuser, IMA_SIGNAL_USER_NEW_IMAGE);
626
627         if(sima->image && sima->image->id.us==0)
628                 sima->image->id.us= 1;
629
630         if(C) {
631                 if(obedit)
632                         WM_event_add_notifier(C, NC_GEOM|ND_DATA, obedit->data);
633
634                 ED_area_tag_redraw(CTX_wm_area(C));
635         }
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->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