a00adec3dc789880b9556e801b0bbd68dc4b3430
[blender.git] / source / blender / editors / space_image / space_image.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_image/space_image.c
28  *  \ingroup spimage
29  */
30
31
32 #include <string.h>
33 #include <stdio.h>
34
35 #include "DNA_meshdata_types.h"
36 #include "DNA_object_types.h"
37 #include "DNA_scene_types.h"
38
39 #include "MEM_guardedalloc.h"
40
41 #include "BLI_blenlib.h"
42 #include "BLI_math.h"
43 #include "BLI_editVert.h"
44 #include "BLI_rand.h"
45 #include "BLI_utildefines.h"
46
47 #include "BKE_colortools.h"
48 #include "BKE_context.h"
49 #include "BKE_image.h"
50 #include "BKE_global.h"
51 #include "BKE_main.h"
52 #include "BKE_mesh.h"
53 #include "BKE_scene.h"
54 #include "BKE_screen.h"
55
56 #include "IMB_imbuf_types.h"
57
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
66 #include "RNA_access.h"
67
68 #include "WM_api.h"
69 #include "WM_types.h"
70
71 #include "UI_resources.h"
72 #include "UI_view2d.h"
73
74 #include "image_intern.h"
75
76 /**************************** common state *****************************/
77
78 /* note; image_panel_properties() uses pointer to sima->image directly */
79 Image *ED_space_image(SpaceImage *sima)
80 {
81         return sima->image;
82 }
83
84 /* called to assign images to UV faces */
85 void ED_space_image_set(bContext *C, SpaceImage *sima, Scene *scene, Object *obedit, Image *ima)
86 {
87         ED_uvedit_assign_image(G.main, scene, obedit, ima, sima->image);
88         
89         /* change the space ima after because uvedit_face_visible uses the space ima
90          * to check if the face is displayed in UV-localview */
91         sima->image= ima;
92         
93         if(ima == NULL || ima->type==IMA_TYPE_R_RESULT || ima->type==IMA_TYPE_COMPOSITE)
94                 sima->flag &= ~SI_DRAWTOOL;
95         
96         if(sima->image)
97                 BKE_image_signal(sima->image, &sima->iuser, IMA_SIGNAL_USER_NEW_IMAGE);
98         
99         if(sima->image && sima->image->id.us==0)
100                 sima->image->id.us= 1;
101         
102         if(C) {
103                 if(obedit)
104                         WM_event_add_notifier(C, NC_GEOM|ND_DATA, obedit->data);
105                 
106                 ED_area_tag_redraw(CTX_wm_area(C));
107                 
108         }
109 }
110
111 ImBuf *ED_space_image_acquire_buffer(SpaceImage *sima, void **lock_r)
112 {
113         ImBuf *ibuf;
114         
115         if(sima && sima->image) {
116 #if 0
117                 if(sima->image->type==IMA_TYPE_R_RESULT && BIF_show_render_spare())
118                         return BIF_render_spare_imbuf();
119                 else
120 #endif
121                         ibuf= BKE_image_acquire_ibuf(sima->image, &sima->iuser, lock_r);
122                 
123                 if(ibuf && (ibuf->rect || ibuf->rect_float))
124                         return ibuf;
125         }
126         
127         return NULL;
128 }
129
130 void ED_space_image_release_buffer(SpaceImage *sima, void *lock)
131 {
132         if(sima && sima->image)
133                 BKE_image_release_ibuf(sima->image, lock);
134 }
135
136 int ED_space_image_has_buffer(SpaceImage *sima)
137 {
138         ImBuf *ibuf;
139         void *lock;
140         int has_buffer;
141         
142         ibuf= ED_space_image_acquire_buffer(sima, &lock);
143         has_buffer= (ibuf != NULL);
144         ED_space_image_release_buffer(sima, lock);
145         
146         return has_buffer;
147 }
148
149 void ED_image_size(Image *ima, int *width, int *height)
150 {
151         ImBuf *ibuf= NULL;
152         void *lock;
153         
154         if(ima)
155                 ibuf= BKE_image_acquire_ibuf(ima, NULL, &lock);
156         
157         if(ibuf && ibuf->x > 0 && ibuf->y > 0) {
158                 *width= ibuf->x;
159                 *height= ibuf->y;
160         }
161         else {
162                 *width= 256;
163                 *height= 256;
164         }
165         
166         if(ima)
167                 BKE_image_release_ibuf(ima, lock);
168 }
169
170 void ED_space_image_size(SpaceImage *sima, int *width, int *height)
171 {
172         Scene *scene= sima->iuser.scene;
173         ImBuf *ibuf;
174         void *lock;
175         
176         ibuf= ED_space_image_acquire_buffer(sima, &lock);
177         
178         if(ibuf && ibuf->x > 0 && ibuf->y > 0) {
179                 *width= ibuf->x;
180                 *height= ibuf->y;
181         }
182         else if(sima->image && sima->image->type==IMA_TYPE_R_RESULT && scene) {
183                 /* not very important, just nice */
184                 *width= (scene->r.xsch*scene->r.size)/100;
185                 *height= (scene->r.ysch*scene->r.size)/100;
186
187                 if((scene->r.mode & R_BORDER) && (scene->r.mode & R_CROP)) {
188                         *width *= (scene->r.border.xmax - scene->r.border.xmin);
189                         *height *= (scene->r.border.ymax - scene->r.border.ymin);
190                 }
191
192         }
193         /* I know a bit weak... but preview uses not actual image size */
194         // XXX else if(image_preview_active(sima, width, height));
195         else {
196                 *width= 256;
197                 *height= 256;
198         }
199         
200         ED_space_image_release_buffer(sima, lock);
201 }
202
203 void ED_image_aspect(Image *ima, float *aspx, float *aspy)
204 {
205         *aspx= *aspy= 1.0;
206         
207         if((ima == NULL) || (ima->type == IMA_TYPE_R_RESULT) || (ima->type == IMA_TYPE_COMPOSITE) ||
208            (ima->aspx==0.0f || ima->aspy==0.0f))
209                 return;
210         
211         /* x is always 1 */
212         *aspy = ima->aspy/ima->aspx;
213 }
214
215 void ED_space_image_aspect(SpaceImage *sima, float *aspx, float *aspy)
216 {
217         ED_image_aspect(ED_space_image(sima), aspx, aspy);
218 }
219
220 void ED_space_image_zoom(SpaceImage *sima, ARegion *ar, float *zoomx, float *zoomy)
221 {
222         int width, height;
223         
224         ED_space_image_size(sima, &width, &height);
225         
226         *zoomx= (float)(ar->winrct.xmax - ar->winrct.xmin + 1)/(float)((ar->v2d.cur.xmax - ar->v2d.cur.xmin)*width);
227         *zoomy= (float)(ar->winrct.ymax - ar->winrct.ymin + 1)/(float)((ar->v2d.cur.ymax - ar->v2d.cur.ymin)*height);
228 }
229
230 void ED_space_image_uv_aspect(SpaceImage *sima, float *aspx, float *aspy)
231 {
232         int w, h;
233         
234         ED_space_image_aspect(sima, aspx, aspy);
235         ED_space_image_size(sima, &w, &h);
236
237         *aspx *= (float)w;
238         *aspy *= (float)h;
239         
240         if(*aspx < *aspy) {
241                 *aspy= *aspy / *aspx;
242                 *aspx= 1.0f;
243         }
244         else {
245                 *aspx= *aspx / *aspy;
246                 *aspy= 1.0f;            
247         }
248 }
249
250 void ED_image_uv_aspect(Image *ima, float *aspx, float *aspy)
251 {
252         int w, h;
253         
254         ED_image_aspect(ima, aspx, aspy);
255         ED_image_size(ima, &w, &h);
256         
257         *aspx *= (float)w;
258         *aspy *= (float)h;
259 }
260
261 int ED_space_image_show_render(SpaceImage *sima)
262 {
263         return (sima->image && ELEM(sima->image->type, IMA_TYPE_R_RESULT, IMA_TYPE_COMPOSITE));
264 }
265
266 int ED_space_image_show_paint(SpaceImage *sima)
267 {
268         if(ED_space_image_show_render(sima))
269                 return 0;
270         
271         return (sima->flag & SI_DRAWTOOL);
272 }
273
274 int ED_space_image_show_uvedit(SpaceImage *sima, Object *obedit)
275 {
276         if(sima && (ED_space_image_show_render(sima) || ED_space_image_show_paint(sima)))
277                 return 0;
278
279         if(obedit && obedit->type == OB_MESH) {
280                 EditMesh *em = BKE_mesh_get_editmesh(obedit->data);
281                 int ret;
282                 
283                 ret = EM_texFaceCheck(em);
284                 
285                 BKE_mesh_end_editmesh(obedit->data, em);
286                 return ret;
287         }
288         
289         return 0;
290 }
291
292 int ED_space_image_show_uvshadow(SpaceImage *sima, Object *obedit)
293 {
294         if(ED_space_image_show_render(sima))
295                 return 0;
296         
297         if(ED_space_image_show_paint(sima))
298                 if(obedit && obedit->type == OB_MESH) {
299                         EditMesh *em = BKE_mesh_get_editmesh(obedit->data);
300                         int ret;
301                         
302                         ret = EM_texFaceCheck(em);
303                         
304                         BKE_mesh_end_editmesh(obedit->data, em);
305                         return ret;
306                 }
307         
308         return 0;
309 }
310
311
312 static void image_scopes_tag_refresh(ScrArea *sa)
313 {
314         SpaceImage *sima= (SpaceImage *)sa->spacedata.first;
315         ARegion *ar;
316
317         /* only while histogram is visible */
318         for (ar=sa->regionbase.first; ar; ar=ar->next) {
319                 if (ar->regiontype == RGN_TYPE_PREVIEW && ar->flag & RGN_FLAG_HIDDEN)
320                         return;
321         }
322
323         sima->scopes.ok=0;
324 }
325
326
327 /* ******************** manage regions ********************* */
328
329 ARegion *image_has_buttons_region(ScrArea *sa)
330 {
331         ARegion *ar, *arnew;
332
333         ar= BKE_area_find_region_type(sa, RGN_TYPE_UI);
334         if(ar) return ar;
335         
336         /* add subdiv level; after header */
337         ar= BKE_area_find_region_type(sa, RGN_TYPE_HEADER);
338
339         /* is error! */
340         if(ar==NULL) return NULL;
341         
342         arnew= MEM_callocN(sizeof(ARegion), "buttons for image");
343         
344         BLI_insertlinkafter(&sa->regionbase, ar, arnew);
345         arnew->regiontype= RGN_TYPE_UI;
346         arnew->alignment= RGN_ALIGN_LEFT;
347         
348         arnew->flag = RGN_FLAG_HIDDEN;
349         
350         return arnew;
351 }
352
353 ARegion *image_has_scope_region(ScrArea *sa)
354 {
355         ARegion *ar, *arnew;
356
357         ar= BKE_area_find_region_type(sa, RGN_TYPE_PREVIEW);
358         if(ar) return ar;
359
360         /* add subdiv level; after buttons */
361         ar= BKE_area_find_region_type(sa, RGN_TYPE_UI);
362
363         /* is error! */
364         if(ar==NULL) return NULL;
365         
366         arnew= MEM_callocN(sizeof(ARegion), "scopes for image");
367         
368         BLI_insertlinkafter(&sa->regionbase, ar, arnew);
369         arnew->regiontype= RGN_TYPE_PREVIEW;
370         arnew->alignment= RGN_ALIGN_RIGHT;
371         
372         arnew->flag = RGN_FLAG_HIDDEN;
373
374         image_scopes_tag_refresh(sa);
375         
376         return arnew;
377 }
378
379 /* ******************** default callbacks for image space ***************** */
380
381 static SpaceLink *image_new(const bContext *UNUSED(C))
382 {
383         ARegion *ar;
384         SpaceImage *simage;
385         
386         simage= MEM_callocN(sizeof(SpaceImage), "initimage");
387         simage->spacetype= SPACE_IMAGE;
388         simage->zoom= 1;
389         simage->lock= 1;
390         
391         simage->iuser.ok= 1;
392         simage->iuser.fie_ima= 2;
393         simage->iuser.frames= 100;
394         
395         scopes_new(&simage->scopes);
396         simage->sample_line_hist.height= 100;
397
398         /* header */
399         ar= MEM_callocN(sizeof(ARegion), "header for image");
400         
401         BLI_addtail(&simage->regionbase, ar);
402         ar->regiontype= RGN_TYPE_HEADER;
403         ar->alignment= RGN_ALIGN_BOTTOM;
404         
405         /* buttons/list view */
406         ar= MEM_callocN(sizeof(ARegion), "buttons for image");
407         
408         BLI_addtail(&simage->regionbase, ar);
409         ar->regiontype= RGN_TYPE_UI;
410         ar->alignment= RGN_ALIGN_LEFT;
411         ar->flag = RGN_FLAG_HIDDEN;
412         
413         /* scopes */
414         ar= MEM_callocN(sizeof(ARegion), "buttons for image");
415         
416         BLI_addtail(&simage->regionbase, ar);
417         ar->regiontype= RGN_TYPE_PREVIEW;
418         ar->alignment= RGN_ALIGN_RIGHT;
419         ar->flag = RGN_FLAG_HIDDEN;
420
421         /* main area */
422         ar= MEM_callocN(sizeof(ARegion), "main area for image");
423         
424         BLI_addtail(&simage->regionbase, ar);
425         ar->regiontype= RGN_TYPE_WINDOW;
426         
427         return (SpaceLink *)simage;
428 }
429
430 /* not spacelink itself */
431 static void image_free(SpaceLink *sl)
432 {       
433         SpaceImage *simage= (SpaceImage*) sl;
434         
435         if(simage->cumap)
436                 curvemapping_free(simage->cumap);
437         scopes_free(&simage->scopes);
438 }
439
440
441 /* spacetype; init callback, add handlers */
442 static void image_init(struct wmWindowManager *UNUSED(wm), ScrArea *sa)
443 {
444         ListBase *lb= WM_dropboxmap_find("Image", SPACE_IMAGE, 0);
445
446         /* add drop boxes */
447         WM_event_add_dropbox_handler(&sa->handlers, lb);
448         
449 }
450
451 static SpaceLink *image_duplicate(SpaceLink *sl)
452 {
453         SpaceImage *simagen= MEM_dupallocN(sl);
454         
455         /* clear or remove stuff from old */
456         if(simagen->cumap)
457                 simagen->cumap= curvemapping_copy(simagen->cumap);
458
459         scopes_new(&simagen->scopes);
460
461         return (SpaceLink *)simagen;
462 }
463
464 static void image_operatortypes(void)
465 {
466         WM_operatortype_append(IMAGE_OT_view_all);
467         WM_operatortype_append(IMAGE_OT_view_pan);
468         WM_operatortype_append(IMAGE_OT_view_selected);
469         WM_operatortype_append(IMAGE_OT_view_zoom);
470         WM_operatortype_append(IMAGE_OT_view_zoom_in);
471         WM_operatortype_append(IMAGE_OT_view_zoom_out);
472         WM_operatortype_append(IMAGE_OT_view_zoom_ratio);
473         WM_operatortype_append(IMAGE_OT_view_ndof);
474
475         WM_operatortype_append(IMAGE_OT_new);
476         WM_operatortype_append(IMAGE_OT_open);
477         WM_operatortype_append(IMAGE_OT_replace);
478         WM_operatortype_append(IMAGE_OT_reload);
479         WM_operatortype_append(IMAGE_OT_save);
480         WM_operatortype_append(IMAGE_OT_save_as);
481         WM_operatortype_append(IMAGE_OT_save_sequence);
482         WM_operatortype_append(IMAGE_OT_pack);
483         WM_operatortype_append(IMAGE_OT_unpack);
484         
485         WM_operatortype_append(IMAGE_OT_invert);
486
487         WM_operatortype_append(IMAGE_OT_cycle_render_slot);
488
489         WM_operatortype_append(IMAGE_OT_sample);
490         WM_operatortype_append(IMAGE_OT_sample_line);
491         WM_operatortype_append(IMAGE_OT_curves_point_set);
492
493         WM_operatortype_append(IMAGE_OT_record_composite);
494
495         WM_operatortype_append(IMAGE_OT_properties);
496         WM_operatortype_append(IMAGE_OT_scopes);
497 }
498
499 static void image_keymap(struct wmKeyConfig *keyconf)
500 {
501         wmKeyMap *keymap= WM_keymap_find(keyconf, "Image Generic", SPACE_IMAGE, 0);
502         wmKeyMapItem *kmi;
503         
504         WM_keymap_add_item(keymap, "IMAGE_OT_new", NKEY, KM_PRESS, KM_ALT, 0);
505         WM_keymap_add_item(keymap, "IMAGE_OT_open", OKEY, KM_PRESS, KM_ALT, 0);
506         WM_keymap_add_item(keymap, "IMAGE_OT_reload", RKEY, KM_PRESS, KM_ALT, 0);
507         WM_keymap_add_item(keymap, "IMAGE_OT_save", SKEY, KM_PRESS, KM_ALT, 0);
508         WM_keymap_add_item(keymap, "IMAGE_OT_save_as", F3KEY, KM_PRESS, 0, 0);
509         WM_keymap_add_item(keymap, "IMAGE_OT_properties", NKEY, KM_PRESS, 0, 0);
510         WM_keymap_add_item(keymap, "IMAGE_OT_scopes", TKEY, KM_PRESS, 0, 0);
511
512         WM_keymap_add_item(keymap, "IMAGE_OT_cycle_render_slot", JKEY, KM_PRESS, 0, 0);
513         RNA_boolean_set(WM_keymap_add_item(keymap, "IMAGE_OT_cycle_render_slot", JKEY, KM_PRESS, KM_ALT, 0)->ptr, "reverse", TRUE);
514         
515         keymap= WM_keymap_find(keyconf, "Image", SPACE_IMAGE, 0);
516         
517         WM_keymap_add_item(keymap, "IMAGE_OT_view_all", HOMEKEY, KM_PRESS, 0, 0);
518         WM_keymap_add_item(keymap, "IMAGE_OT_view_selected", PADPERIOD, KM_PRESS, 0, 0);
519         WM_keymap_add_item(keymap, "IMAGE_OT_view_pan", MIDDLEMOUSE, KM_PRESS, 0, 0);
520         WM_keymap_add_item(keymap, "IMAGE_OT_view_pan", MIDDLEMOUSE, KM_PRESS, KM_SHIFT, 0);
521         WM_keymap_add_item(keymap, "IMAGE_OT_view_pan", MOUSEPAN, 0, 0, 0);
522
523         WM_keymap_add_item(keymap, "IMAGE_OT_view_all", NDOF_BUTTON_FIT, KM_PRESS, 0, 0); // or view selected?
524         WM_keymap_add_item(keymap, "IMAGE_OT_view_ndof", NDOF_MOTION, 0, 0, 0);
525
526         WM_keymap_add_item(keymap, "IMAGE_OT_view_zoom_in", WHEELINMOUSE, KM_PRESS, 0, 0);
527         WM_keymap_add_item(keymap, "IMAGE_OT_view_zoom_out", WHEELOUTMOUSE, KM_PRESS, 0, 0);
528         WM_keymap_add_item(keymap, "IMAGE_OT_view_zoom_in", PADPLUSKEY, KM_PRESS, 0, 0);
529         WM_keymap_add_item(keymap, "IMAGE_OT_view_zoom_out", PADMINUS, KM_PRESS, 0, 0);
530         WM_keymap_add_item(keymap, "IMAGE_OT_view_zoom", MIDDLEMOUSE, KM_PRESS, KM_CTRL, 0);
531         WM_keymap_add_item(keymap, "IMAGE_OT_view_zoom", MOUSEZOOM, 0, 0, 0);
532
533         RNA_float_set(WM_keymap_add_item(keymap, "IMAGE_OT_view_zoom_ratio", PAD8, KM_PRESS, KM_SHIFT, 0)->ptr, "ratio", 8.0f);
534         RNA_float_set(WM_keymap_add_item(keymap, "IMAGE_OT_view_zoom_ratio", PAD4, KM_PRESS, KM_SHIFT, 0)->ptr, "ratio", 4.0f);
535         RNA_float_set(WM_keymap_add_item(keymap, "IMAGE_OT_view_zoom_ratio", PAD2, KM_PRESS, KM_SHIFT, 0)->ptr, "ratio", 2.0f);
536         RNA_float_set(WM_keymap_add_item(keymap, "IMAGE_OT_view_zoom_ratio", PAD1, KM_PRESS, 0, 0)->ptr, "ratio", 1.0f);
537         RNA_float_set(WM_keymap_add_item(keymap, "IMAGE_OT_view_zoom_ratio", PAD2, KM_PRESS, 0, 0)->ptr, "ratio", 0.5f);
538         RNA_float_set(WM_keymap_add_item(keymap, "IMAGE_OT_view_zoom_ratio", PAD4, KM_PRESS, 0, 0)->ptr, "ratio", 0.25f);
539         RNA_float_set(WM_keymap_add_item(keymap, "IMAGE_OT_view_zoom_ratio", PAD8, KM_PRESS, 0, 0)->ptr, "ratio", 0.125f);
540
541         WM_keymap_add_item(keymap, "IMAGE_OT_sample", ACTIONMOUSE, KM_PRESS, 0, 0);
542         RNA_enum_set(WM_keymap_add_item(keymap, "IMAGE_OT_curves_point_set", ACTIONMOUSE, KM_PRESS, KM_CTRL, 0)->ptr, "point", 0);
543         RNA_enum_set(WM_keymap_add_item(keymap, "IMAGE_OT_curves_point_set", ACTIONMOUSE, KM_PRESS, KM_SHIFT, 0)->ptr, "point", 1);
544
545         /* toggle editmode is handy to have while UV unwrapping */
546         kmi= WM_keymap_add_item(keymap, "OBJECT_OT_mode_set", TABKEY, KM_PRESS, 0, 0);
547         RNA_enum_set(kmi->ptr, "mode", OB_MODE_EDIT);
548         RNA_boolean_set(kmi->ptr, "toggle", 1);
549 }
550
551 /* dropboxes */
552 static int image_drop_poll(bContext *UNUSED(C), wmDrag *drag, wmEvent *UNUSED(event))
553 {
554         if(drag->type==WM_DRAG_PATH)
555                 if(ELEM3(drag->icon, 0, ICON_FILE_IMAGE, ICON_FILE_BLANK))      /* rule might not work? */
556                         return 1;
557         return 0;
558 }
559
560 static void image_drop_copy(wmDrag *drag, wmDropBox *drop)
561 {
562         /* copy drag path to properties */
563         RNA_string_set(drop->ptr, "filepath", drag->path);
564 }
565
566 /* area+region dropbox definition */
567 static void image_dropboxes(void)
568 {
569         ListBase *lb= WM_dropboxmap_find("Image", SPACE_IMAGE, 0);
570         
571         WM_dropbox_add(lb, "IMAGE_OT_open", image_drop_poll, image_drop_copy);
572 }
573
574
575
576 static void image_refresh(const bContext *C, ScrArea *UNUSED(sa))
577 {
578         Scene *scene = CTX_data_scene(C);
579         SpaceImage *sima= CTX_wm_space_image(C);
580         Object *obedit= CTX_data_edit_object(C);
581         Image *ima;
582
583         ima= ED_space_image(sima);
584
585         if(sima->iuser.flag & IMA_ANIM_ALWAYS)
586                 BKE_image_user_calc_frame(&sima->iuser, CTX_data_scene(C)->r.cfra, 0);
587         
588         /* check if we have to set the image from the editmesh */
589         if(ima && (ima->source==IMA_SRC_VIEWER || sima->pin));
590         else if(obedit && obedit->type == OB_MESH) {
591                 Mesh *me= (Mesh*)obedit->data;
592                 EditMesh *em= BKE_mesh_get_editmesh(me);
593                 int sloppy= 1; /* partially selected face is ok */
594
595                 if(scene_use_new_shading_nodes(scene)) {
596                         /* new shading system, get image from material */
597                         EditFace *efa= EM_get_actFace(em, sloppy);
598
599                         if(efa)
600                                 ED_object_get_active_image(obedit, efa->mat_nr, &sima->image, NULL);
601                 }
602                 else {
603                         /* old shading system, we set texface */
604                         MTFace *tf;
605                         
606                         if(em && EM_texFaceCheck(em)) {
607                                 sima->image= NULL;
608                                 
609                                 tf = EM_get_active_mtface(em, NULL, NULL, sloppy);
610                                 
611                                 if(tf) {
612                                         /* don't need to check for pin here, see above */
613                                         sima->image= tf->tpage;
614                                         
615                                         if(sima->flag & SI_EDITTILE);
616                                         else sima->curtile= tf->tile;
617                                 }
618                         }
619                 }
620
621                 BKE_mesh_end_editmesh(obedit->data, em);
622         }
623 }
624
625 static void image_listener(ScrArea *sa, wmNotifier *wmn)
626 {
627         SpaceImage *sima= (SpaceImage *)sa->spacedata.first;
628         
629         /* context changes */
630         switch(wmn->category) {
631                 case NC_SCENE:
632                         switch(wmn->data) {
633                                 case ND_FRAME:
634                                         image_scopes_tag_refresh(sa);
635                                         ED_area_tag_refresh(sa);
636                                         ED_area_tag_redraw(sa);                                 
637                                         break;
638                                 case ND_MODE:
639                                 case ND_RENDER_RESULT:
640                                 case ND_COMPO_RESULT:
641                                         if (ED_space_image_show_render(sima))
642                                                 image_scopes_tag_refresh(sa);
643                                         ED_area_tag_refresh(sa);
644                                         ED_area_tag_redraw(sa);                                 
645                                         break;
646                         }
647                         break;
648                 case NC_IMAGE:
649                         if (wmn->reference == sima->image || !wmn->reference) {
650                                 image_scopes_tag_refresh(sa);
651                                 ED_area_tag_refresh(sa);
652                                 ED_area_tag_redraw(sa);
653                         }
654                         break;
655                 case NC_SPACE:  
656                         if(wmn->data == ND_SPACE_IMAGE) {
657                                 image_scopes_tag_refresh(sa);
658                                 ED_area_tag_redraw(sa);
659                         }
660                         break;
661                 case NC_GEOM:
662                         switch(wmn->data) {
663                                 case ND_DATA:
664                                 case ND_SELECT:
665                                         image_scopes_tag_refresh(sa);
666                                         ED_area_tag_refresh(sa);
667                                         ED_area_tag_redraw(sa);
668                                         break;
669                         }
670                 case NC_OBJECT:
671                 {
672                         Object *ob= (Object *)wmn->reference;
673                         switch(wmn->data) {
674                                 case ND_TRANSFORM:
675                                 case ND_MODIFIER:
676                                         if(ob && (ob->mode & OB_MODE_EDIT) && sima->lock && (sima->flag & SI_DRAWSHADOW)) {
677                                                 ED_area_tag_refresh(sa);
678                                                 ED_area_tag_redraw(sa);
679                                         }
680                                         break;
681                         }
682                 }
683         }
684 }
685
686 const char *image_context_dir[] = {"edit_image", NULL};
687
688 static int image_context(const bContext *C, const char *member, bContextDataResult *result)
689 {
690         SpaceImage *sima= CTX_wm_space_image(C);
691
692         if(CTX_data_dir(member)) {
693                 CTX_data_dir_set(result, image_context_dir);
694         }
695         else if(CTX_data_equals(member, "edit_image")) {
696                 CTX_data_id_pointer_set(result, (ID*)ED_space_image(sima));
697                 return 1;
698         }
699
700         return 0;
701 }
702
703 /************************** main region ***************************/
704
705 /* sets up the fields of the View2D from zoom and offset */
706 static void image_main_area_set_view2d(SpaceImage *sima, ARegion *ar)
707 {
708         Image *ima= ED_space_image(sima);
709         float x1, y1, w, h;
710         int width, height, winx, winy;
711         
712 #if 0
713         if(image_preview_active(curarea, &width, &height));
714         else
715 #endif
716         ED_space_image_size(sima, &width, &height);
717
718         w= width;
719         h= height;
720         
721         if(ima)
722                 h *= ima->aspy/ima->aspx;
723
724         winx= ar->winrct.xmax - ar->winrct.xmin + 1;
725         winy= ar->winrct.ymax - ar->winrct.ymin + 1;
726                 
727         ar->v2d.tot.xmin= 0;
728         ar->v2d.tot.ymin= 0;
729         ar->v2d.tot.xmax= w;
730         ar->v2d.tot.ymax= h;
731         
732         ar->v2d.mask.xmin= ar->v2d.mask.ymin= 0;
733         ar->v2d.mask.xmax= winx;
734         ar->v2d.mask.ymax= winy;
735
736         /* which part of the image space do we see? */
737         x1= ar->winrct.xmin+(winx-sima->zoom*w)/2.0f;
738         y1= ar->winrct.ymin+(winy-sima->zoom*h)/2.0f;
739
740         x1-= sima->zoom*sima->xof;
741         y1-= sima->zoom*sima->yof;
742         
743         /* relative display right */
744         ar->v2d.cur.xmin= ((ar->winrct.xmin - (float)x1)/sima->zoom);
745         ar->v2d.cur.xmax= ar->v2d.cur.xmin + ((float)winx/sima->zoom);
746         
747         /* relative display left */
748         ar->v2d.cur.ymin= ((ar->winrct.ymin-(float)y1)/sima->zoom);
749         ar->v2d.cur.ymax= ar->v2d.cur.ymin + ((float)winy/sima->zoom);
750         
751         /* normalize 0.0..1.0 */
752         ar->v2d.cur.xmin /= w;
753         ar->v2d.cur.xmax /= w;
754         ar->v2d.cur.ymin /= h;
755         ar->v2d.cur.ymax /= h;
756 }
757
758 /* add handlers, stuff you only do once or on area/region changes */
759 static void image_main_area_init(wmWindowManager *wm, ARegion *ar)
760 {
761         wmKeyMap *keymap;
762         
763         // image space manages own v2d
764         // UI_view2d_region_reinit(&ar->v2d, V2D_COMMONVIEW_STANDARD, ar->winx, ar->winy);
765
766         /* image paint polls for mode */
767         keymap= WM_keymap_find(wm->defaultconf, "Image Paint", 0, 0);
768         WM_event_add_keymap_handler_bb(&ar->handlers, keymap, &ar->v2d.mask, &ar->winrct);
769
770         keymap= WM_keymap_find(wm->defaultconf, "UV Editor", 0, 0);
771         WM_event_add_keymap_handler(&ar->handlers, keymap);
772         
773         /* own keymaps */
774         keymap= WM_keymap_find(wm->defaultconf, "Image Generic", SPACE_IMAGE, 0);
775         WM_event_add_keymap_handler(&ar->handlers, keymap);
776         keymap= WM_keymap_find(wm->defaultconf, "Image", SPACE_IMAGE, 0);
777         WM_event_add_keymap_handler_bb(&ar->handlers, keymap, &ar->v2d.mask, &ar->winrct);
778
779 }
780
781 static void image_main_area_draw(const bContext *C, ARegion *ar)
782 {
783         /* draw entirely, view changes should be handled here */
784         SpaceImage *sima= CTX_wm_space_image(C);
785         Object *obedit= CTX_data_edit_object(C);
786         Scene *scene= CTX_data_scene(C);
787         View2D *v2d= &ar->v2d;
788         //View2DScrollers *scrollers;
789         float col[3];
790         
791         /* XXX not supported yet, disabling for now */
792         scene->r.scemode &= ~R_COMP_CROP;
793         
794         /* clear and setup matrix */
795         UI_GetThemeColor3fv(TH_BACK, col);
796         glClearColor(col[0], col[1], col[2], 0.0);
797         glClear(GL_COLOR_BUFFER_BIT);
798
799         /* put scene context variable in iuser */
800         sima->iuser.scene= scene;
801
802         /* we set view2d from own zoom and offset each time */
803         image_main_area_set_view2d(sima, ar);
804         
805         /* we draw image in pixelspace */
806         draw_image_main(sima, ar, scene);
807
808         /* and uvs in 0.0-1.0 space */
809         UI_view2d_view_ortho(v2d);
810         draw_uvedit_main(sima, ar, scene, obedit);
811
812         ED_region_draw_cb_draw(C, ar, REGION_DRAW_POST_VIEW);
813                 
814         /* Grease Pencil too (in addition to UV's) */
815         draw_image_grease_pencil((bContext *)C, 1); 
816
817         UI_view2d_view_restore(C);
818
819         /* draw Grease Pencil - screen space only */
820         draw_image_grease_pencil((bContext *)C, 0);
821         
822         /* scrollers? */
823         /*scrollers= UI_view2d_scrollers_calc(C, v2d, V2D_UNIT_VALUES, V2D_GRID_CLAMP, V2D_ARG_DUMMY, V2D_ARG_DUMMY);
824         UI_view2d_scrollers_draw(C, v2d, scrollers);
825         UI_view2d_scrollers_free(scrollers);*/
826 }
827
828 static void image_main_area_listener(ARegion *ar, wmNotifier *wmn)
829 {
830         /* context changes */
831         switch(wmn->category) {
832                 case NC_SCREEN:
833                         if (wmn->data==ND_GPENCIL)
834                                 ED_region_tag_redraw(ar);
835                 break;
836         }
837 }
838
839 /* *********************** buttons region ************************ */
840
841 /* add handlers, stuff you only do once or on area/region changes */
842 static void image_buttons_area_init(wmWindowManager *wm, ARegion *ar)
843 {
844         wmKeyMap *keymap;
845
846         ED_region_panels_init(wm, ar);
847         
848         keymap= WM_keymap_find(wm->defaultconf, "Image Generic", SPACE_IMAGE, 0);
849         WM_event_add_keymap_handler(&ar->handlers, keymap);
850 }
851
852 static void image_buttons_area_draw(const bContext *C, ARegion *ar)
853 {
854         ED_region_panels(C, ar, 1, NULL, -1);
855 }
856
857 static void image_buttons_area_listener(ARegion *ar, wmNotifier *wmn)
858 {
859         /* context changes */
860         switch(wmn->category) {
861                 case NC_SCREEN:
862                         if (wmn->data==ND_GPENCIL)
863                                 ED_region_tag_redraw(ar);
864                         break;
865                 case NC_BRUSH:
866                         if(wmn->action==NA_EDITED)
867                                 ED_region_tag_redraw(ar);
868                         break;
869         }
870 }
871
872 /* *********************** scopes region ************************ */
873
874 /* add handlers, stuff you only do once or on area/region changes */
875 static void image_scope_area_init(wmWindowManager *wm, ARegion *ar)
876 {
877         wmKeyMap *keymap;
878         
879         ED_region_panels_init(wm, ar);
880         
881         keymap= WM_keymap_find(wm->defaultconf, "Image Generic", SPACE_IMAGE, 0);
882         WM_event_add_keymap_handler(&ar->handlers, keymap);
883 }
884
885 static void image_scope_area_draw(const bContext *C, ARegion *ar)
886 {
887         SpaceImage *sima= CTX_wm_space_image(C);
888         Scene *scene= CTX_data_scene(C);
889         void *lock;
890         ImBuf *ibuf= ED_space_image_acquire_buffer(sima, &lock);
891         if(ibuf) {
892                 scopes_update(&sima->scopes, ibuf, scene->r.color_mgt_flag & R_COLOR_MANAGEMENT );
893         }
894         ED_space_image_release_buffer(sima, lock);
895         
896         ED_region_panels(C, ar, 1, NULL, -1);
897 }
898
899 static void image_scope_area_listener(ARegion *ar, wmNotifier *wmn)
900 {
901         /* context changes */
902         switch(wmn->category) {
903                 case NC_SCENE:
904                         switch(wmn->data) {
905                                 case ND_MODE:
906                                 case ND_RENDER_RESULT:
907                                 case ND_COMPO_RESULT:
908                                         ED_region_tag_redraw(ar);
909                                         break;
910                         }
911                         break;
912                 case NC_IMAGE:
913                         ED_region_tag_redraw(ar);
914                         break;
915                 case NC_NODE:
916                         ED_region_tag_redraw(ar);
917                         break;
918                         
919         }
920 }
921
922 /************************* header region **************************/
923
924 /* add handlers, stuff you only do once or on area/region changes */
925 static void image_header_area_init(wmWindowManager *UNUSED(wm), ARegion *ar)
926 {
927         ED_region_header_init(ar);
928 }
929
930 static void image_header_area_draw(const bContext *C, ARegion *ar)
931 {
932         ED_region_header(C, ar);
933 }
934
935 static void image_header_area_listener(ARegion *ar, wmNotifier *wmn)
936 {
937         /* context changes */
938         switch(wmn->category) {
939                 case NC_SCENE:
940                         switch(wmn->data) {
941                                 case ND_MODE:
942                                 case ND_TOOLSETTINGS:
943                                         ED_region_tag_redraw(ar);
944                                         break;
945                         }
946                         break;
947                 case NC_GEOM:
948                         switch(wmn->data) {
949                                 case ND_DATA:
950                                 case ND_SELECT:
951                                         ED_region_tag_redraw(ar);
952                                         break;
953                         }
954                         
955         }
956 }
957
958 /**************************** spacetype *****************************/
959
960 /* only called once, from space/spacetypes.c */
961 void ED_spacetype_image(void)
962 {
963         SpaceType *st= MEM_callocN(sizeof(SpaceType), "spacetype image");
964         ARegionType *art;
965         
966         st->spaceid= SPACE_IMAGE;
967         strncpy(st->name, "Image", BKE_ST_MAXNAME);
968         
969         st->new= image_new;
970         st->free= image_free;
971         st->init= image_init;
972         st->duplicate= image_duplicate;
973         st->operatortypes= image_operatortypes;
974         st->keymap= image_keymap;
975         st->dropboxes= image_dropboxes;
976         st->refresh= image_refresh;
977         st->listener= image_listener;
978         st->context= image_context;
979         
980         /* regions: main window */
981         art= MEM_callocN(sizeof(ARegionType), "spacetype image region");
982         art->regionid = RGN_TYPE_WINDOW;
983         art->keymapflag= ED_KEYMAP_FRAMES|ED_KEYMAP_GPENCIL;
984         art->init= image_main_area_init;
985         art->draw= image_main_area_draw;
986         art->listener= image_main_area_listener;
987
988         BLI_addhead(&st->regiontypes, art);
989         
990         /* regions: listview/buttons */
991         art= MEM_callocN(sizeof(ARegionType), "spacetype image region");
992         art->regionid = RGN_TYPE_UI;
993         art->prefsizex= 220; // XXX
994         art->keymapflag= ED_KEYMAP_UI|ED_KEYMAP_FRAMES;
995         art->listener= image_buttons_area_listener;
996         art->init= image_buttons_area_init;
997         art->draw= image_buttons_area_draw;
998         BLI_addhead(&st->regiontypes, art);
999
1000         image_buttons_register(art);
1001         ED_uvedit_buttons_register(art);
1002         
1003         /* regions: statistics/scope buttons */
1004         art= MEM_callocN(sizeof(ARegionType), "spacetype image region");
1005         art->regionid = RGN_TYPE_PREVIEW;
1006         art->prefsizex= 220; // XXX
1007         art->keymapflag= ED_KEYMAP_UI|ED_KEYMAP_FRAMES;
1008         art->listener= image_scope_area_listener;
1009         art->init= image_scope_area_init;
1010         art->draw= image_scope_area_draw;
1011         BLI_addhead(&st->regiontypes, art);
1012
1013         /* regions: header */
1014         art= MEM_callocN(sizeof(ARegionType), "spacetype image region");
1015         art->regionid = RGN_TYPE_HEADER;
1016         art->prefsizey= HEADERY;
1017         art->keymapflag= ED_KEYMAP_UI|ED_KEYMAP_VIEW2D|ED_KEYMAP_FRAMES|ED_KEYMAP_HEADER;
1018         art->listener= image_header_area_listener;
1019         art->init= image_header_area_init;
1020         art->draw= image_header_area_draw;
1021         
1022         BLI_addhead(&st->regiontypes, art);
1023         
1024         BKE_spacetype_register(st);
1025 }
1026