changes to the sequencer in trunk between 20855:20928, (excluding UI changes)
[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_image.h"
58 #include "ED_mesh.h"
59 #include "ED_space_api.h"
60 #include "ED_screen.h"
61 #include "ED_uvedit.h"
62
63 #include "BIF_gl.h"
64 #include "BIF_glutil.h"
65
66 #include "RNA_access.h"
67
68 #include "WM_api.h"
69 #include "WM_types.h"
70
71 #include "UI_interface.h"
72 #include "UI_resources.h"
73 #include "UI_view2d.h"
74
75 #include "image_intern.h"
76
77 /* ******************** manage regions ********************* */
78
79 ARegion *image_has_buttons_region(ScrArea *sa)
80 {
81         ARegion *ar, *arnew;
82         
83         for(ar= sa->regionbase.first; ar; ar= ar->next)
84                 if(ar->regiontype==RGN_TYPE_UI)
85                         return ar;
86         
87         /* add subdiv level; after header */
88         for(ar= sa->regionbase.first; ar; ar= ar->next)
89                 if(ar->regiontype==RGN_TYPE_HEADER)
90                         break;
91         
92         /* is error! */
93         if(ar==NULL) return NULL;
94         
95         arnew= MEM_callocN(sizeof(ARegion), "buttons for image");
96         
97         BLI_insertlinkafter(&sa->regionbase, ar, arnew);
98         arnew->regiontype= RGN_TYPE_UI;
99         arnew->alignment= RGN_ALIGN_LEFT;
100         
101         arnew->flag = RGN_FLAG_HIDDEN;
102         
103         return arnew;
104 }
105
106 /* ******************** default callbacks for image space ***************** */
107
108 static SpaceLink *image_new(const bContext *C)
109 {
110         ARegion *ar;
111         SpaceImage *simage;
112         
113         simage= MEM_callocN(sizeof(SpaceImage), "initimage");
114         simage->spacetype= SPACE_IMAGE;
115         simage->zoom= 1;
116         
117         simage->iuser.ok= 1;
118         simage->iuser.fie_ima= 2;
119         simage->iuser.frames= 100;
120         
121         /* header */
122         ar= MEM_callocN(sizeof(ARegion), "header for image");
123         
124         BLI_addtail(&simage->regionbase, ar);
125         ar->regiontype= RGN_TYPE_HEADER;
126         ar->alignment= RGN_ALIGN_BOTTOM;
127         
128         /* buttons/list view */
129         ar= MEM_callocN(sizeof(ARegion), "buttons for image");
130         
131         BLI_addtail(&simage->regionbase, ar);
132         ar->regiontype= RGN_TYPE_UI;
133         ar->alignment= RGN_ALIGN_LEFT;
134         ar->flag = RGN_FLAG_HIDDEN;
135         
136         /* main area */
137         ar= MEM_callocN(sizeof(ARegion), "main area for image");
138         
139         BLI_addtail(&simage->regionbase, ar);
140         ar->regiontype= RGN_TYPE_WINDOW;
141         
142         return (SpaceLink *)simage;
143 }
144
145 /* not spacelink itself */
146 static void image_free(SpaceLink *sl)
147 {       
148         SpaceImage *simage= (SpaceImage*) sl;
149         
150         if(simage->cumap)
151                 curvemapping_free(simage->cumap);
152 //      if(simage->gpd)
153 // XXX          free_gpencil_data(simage->gpd);
154         
155 }
156
157
158 /* spacetype; init callback */
159 static void image_init(struct wmWindowManager *wm, ScrArea *sa)
160 {
161
162 }
163
164 static SpaceLink *image_duplicate(SpaceLink *sl)
165 {
166         SpaceImage *simagen= MEM_dupallocN(sl);
167         
168         /* clear or remove stuff from old */
169         if(simagen->cumap)
170                 simagen->cumap= curvemapping_copy(simagen->cumap);
171         
172         return (SpaceLink *)simagen;
173 }
174
175 void image_operatortypes(void)
176 {
177         WM_operatortype_append(IMAGE_OT_view_all);
178         WM_operatortype_append(IMAGE_OT_view_pan);
179         WM_operatortype_append(IMAGE_OT_view_selected);
180         WM_operatortype_append(IMAGE_OT_view_zoom);
181         WM_operatortype_append(IMAGE_OT_view_zoom_in);
182         WM_operatortype_append(IMAGE_OT_view_zoom_out);
183         WM_operatortype_append(IMAGE_OT_view_zoom_ratio);
184
185         WM_operatortype_append(IMAGE_OT_new);
186         WM_operatortype_append(IMAGE_OT_open);
187         WM_operatortype_append(IMAGE_OT_replace);
188         WM_operatortype_append(IMAGE_OT_reload);
189         WM_operatortype_append(IMAGE_OT_save);
190         WM_operatortype_append(IMAGE_OT_save_as);
191         WM_operatortype_append(IMAGE_OT_save_sequence);
192         WM_operatortype_append(IMAGE_OT_pack);
193         WM_operatortype_append(IMAGE_OT_unpack);
194
195         WM_operatortype_append(IMAGE_OT_sample);
196         WM_operatortype_append(IMAGE_OT_curves_point_set);
197
198         WM_operatortype_append(IMAGE_OT_record_composite);
199
200         WM_operatortype_append(IMAGE_OT_toolbox);
201         WM_operatortype_append(IMAGE_OT_properties);
202 }
203
204 void image_keymap(struct wmWindowManager *wm)
205 {
206         ListBase *keymap= WM_keymap_listbase(wm, "Image Generic", SPACE_IMAGE, 0);
207         
208         WM_keymap_add_item(keymap, "IMAGE_OT_new", NKEY, KM_PRESS, KM_ALT, 0);
209         WM_keymap_add_item(keymap, "IMAGE_OT_open", OKEY, KM_PRESS, KM_ALT, 0);
210         WM_keymap_add_item(keymap, "IMAGE_OT_reload", RKEY, KM_PRESS, KM_ALT, 0);
211         WM_keymap_add_item(keymap, "IMAGE_OT_save", SKEY, KM_PRESS, KM_ALT, 0);
212         WM_keymap_add_item(keymap, "IMAGE_OT_properties", NKEY, KM_PRESS, 0, 0);
213         
214         keymap= WM_keymap_listbase(wm, "Image", SPACE_IMAGE, 0);
215         
216         WM_keymap_add_item(keymap, "IMAGE_OT_view_all", HOMEKEY, KM_PRESS, 0, 0);
217         WM_keymap_add_item(keymap, "IMAGE_OT_view_selected", PADPERIOD, KM_PRESS, 0, 0);
218         WM_keymap_add_item(keymap, "IMAGE_OT_view_pan", MIDDLEMOUSE, KM_PRESS, 0, 0);
219
220         WM_keymap_add_item(keymap, "IMAGE_OT_view_zoom_in", WHEELINMOUSE, KM_PRESS, 0, 0);
221         WM_keymap_add_item(keymap, "IMAGE_OT_view_zoom_out", WHEELOUTMOUSE, KM_PRESS, 0, 0);
222         WM_keymap_add_item(keymap, "IMAGE_OT_view_zoom_in", PADPLUSKEY, KM_PRESS, 0, 0);
223         WM_keymap_add_item(keymap, "IMAGE_OT_view_zoom_out", PADMINUS, KM_PRESS, 0, 0);
224         WM_keymap_add_item(keymap, "IMAGE_OT_view_zoom", MIDDLEMOUSE, KM_PRESS, KM_CTRL, 0);
225
226         RNA_float_set(WM_keymap_add_item(keymap, "IMAGE_OT_view_zoom_ratio", PAD8, KM_PRESS, KM_SHIFT, 0)->ptr, "ratio", 8.0f);
227         RNA_float_set(WM_keymap_add_item(keymap, "IMAGE_OT_view_zoom_ratio", PAD4, KM_PRESS, KM_SHIFT, 0)->ptr, "ratio", 4.0f);
228         RNA_float_set(WM_keymap_add_item(keymap, "IMAGE_OT_view_zoom_ratio", PAD2, KM_PRESS, KM_SHIFT, 0)->ptr, "ratio", 2.0f);
229         RNA_float_set(WM_keymap_add_item(keymap, "IMAGE_OT_view_zoom_ratio", PAD1, KM_PRESS, 0, 0)->ptr, "ratio", 1.0f);
230         RNA_float_set(WM_keymap_add_item(keymap, "IMAGE_OT_view_zoom_ratio", PAD2, KM_PRESS, 0, 0)->ptr, "ratio", 0.5f);
231         RNA_float_set(WM_keymap_add_item(keymap, "IMAGE_OT_view_zoom_ratio", PAD4, KM_PRESS, 0, 0)->ptr, "ratio", 0.25f);
232         RNA_float_set(WM_keymap_add_item(keymap, "IMAGE_OT_view_zoom_ratio", PAD8, KM_PRESS, 0, 0)->ptr, "ratio", 0.125f);
233
234         WM_keymap_add_item(keymap, "PAINT_OT_image_paint", ACTIONMOUSE, KM_PRESS, 0, 0);
235         WM_keymap_add_item(keymap, "PAINT_OT_grab_clone", SELECTMOUSE, KM_PRESS, 0, 0);
236         WM_keymap_add_item(keymap, "PAINT_OT_sample_color", SELECTMOUSE, KM_PRESS, 0, 0);
237         RNA_enum_set(WM_keymap_add_item(keymap, "PAINT_OT_image_paint_radial_control", FKEY, KM_PRESS, 0, 0)->ptr, "mode", WM_RADIALCONTROL_SIZE);
238         RNA_enum_set(WM_keymap_add_item(keymap, "PAINT_OT_image_paint_radial_control", FKEY, KM_PRESS, KM_SHIFT, 0)->ptr, "mode", WM_RADIALCONTROL_STRENGTH);
239
240         WM_keymap_add_item(keymap, "IMAGE_OT_sample", ACTIONMOUSE, KM_PRESS, 0, 0);
241         RNA_enum_set(WM_keymap_add_item(keymap, "IMAGE_OT_curves_point_set", ACTIONMOUSE, KM_PRESS, KM_CTRL, 0)->ptr, "point", 0);
242         RNA_enum_set(WM_keymap_add_item(keymap, "IMAGE_OT_curves_point_set", ACTIONMOUSE, KM_PRESS, KM_SHIFT, 0)->ptr, "point", 1);
243
244         WM_keymap_add_item(keymap, "IMAGE_OT_toolbox", SPACEKEY, KM_PRESS, 0, 0);
245 }
246
247 static void image_refresh(const bContext *C, ScrArea *sa)
248 {
249         SpaceImage *sima= (SpaceImage*)CTX_wm_space_data(C);
250         Object *obedit= CTX_data_edit_object(C);
251         Image *ima;
252
253         ima= ED_space_image(sima);
254
255         /* check if we have to set the image from the editmesh */
256         if(ima && (ima->source==IMA_SRC_VIEWER || sima->pin));
257         else if(obedit && obedit->type == OB_MESH) {
258                 Mesh *me= (Mesh*)obedit->data;
259                 EditMesh *em= BKE_mesh_get_editmesh(me);
260                 MTFace *tf;
261                 
262                 if(em && EM_texFaceCheck(em)) {
263                         sima->image= ima= NULL;
264                         
265                         tf = EM_get_active_mtface(em, NULL, NULL, 1); /* partially selected face is ok */
266                         
267                         if(tf && (tf->mode & TF_TEX)) {
268                                 /* don't need to check for pin here, see above */
269                                 sima->image= ima= tf->tpage;
270                                 
271                                 if(sima->flag & SI_EDITTILE);
272                                 else sima->curtile= tf->tile;
273                         }
274                 }
275
276                 BKE_mesh_end_editmesh(obedit->data, em);
277         }
278 }
279
280 static void image_listener(ScrArea *sa, wmNotifier *wmn)
281 {
282         /* context changes */
283         switch(wmn->category) {
284                 case NC_SCENE:
285                         switch(wmn->data) {
286                                 case ND_MODE:
287                                 case ND_RENDER_RESULT:
288                                 case ND_COMPO_RESULT:
289                                         ED_area_tag_refresh(sa);
290                                         ED_area_tag_redraw(sa);
291                                         break;
292                         }
293                         break;
294                 case NC_IMAGE:  
295                         ED_area_tag_redraw(sa);
296                         break;
297         }
298 }
299
300 static int image_context(const bContext *C, const char *member, bContextDataResult *result)
301 {
302         SpaceImage *sima= (SpaceImage*)CTX_wm_space_data(C);
303
304         if(CTX_data_equals(member, "edit_image")) {
305                 CTX_data_id_pointer_set(result, (ID*)ED_space_image(sima));
306                 return 1;
307         }
308
309         return 0;
310 }
311
312 /************************** main region ***************************/
313
314 /* sets up the fields of the View2D from zoom and offset */
315 static void image_main_area_set_view2d(SpaceImage *sima, ARegion *ar, Scene *scene)
316 {
317         Image *ima= ED_space_image(sima);
318         float x1, y1, w, h;
319         int width, height, winx, winy;
320         
321 #if 0
322         if(image_preview_active(curarea, &width, &height));
323 #endif
324         if(sima->image) {
325                 ImBuf *ibuf= ED_space_image_buffer(sima);
326                 float xuser_asp, yuser_asp;
327                 
328                 ED_image_aspect(sima->image, &xuser_asp, &yuser_asp);
329                 if(ibuf) {
330                         width= ibuf->x*xuser_asp;
331                         height= ibuf->y*yuser_asp;
332                 }
333                 else if(sima->image->type==IMA_TYPE_R_RESULT) {
334                         /* not very important, just nice */
335                         width= (scene->r.xsch*scene->r.size)/100;
336                         height= (scene->r.ysch*scene->r.size)/100;
337                 }
338                 else
339                         ED_space_image_size(sima, &width, &height);
340         }
341         else
342                 ED_space_image_size(sima, &width, &height);
343
344         w= width;
345         h= height;
346         
347         if(ima)
348                 h *= ima->aspy/ima->aspx;
349
350         winx= ar->winrct.xmax - ar->winrct.xmin + 1;
351         winy= ar->winrct.ymax - ar->winrct.ymin + 1;
352                 
353         ar->v2d.tot.xmin= 0;
354         ar->v2d.tot.ymin= 0;
355         ar->v2d.tot.xmax= w;
356         ar->v2d.tot.ymax= h;
357         
358         ar->v2d.mask.xmin= ar->v2d.mask.ymin= 0;
359         ar->v2d.mask.xmax= winx;
360         ar->v2d.mask.ymax= winy;
361
362         /* which part of the image space do we see? */
363         /* same calculation as in lrectwrite: area left and down*/
364         x1= ar->winrct.xmin+(winx-sima->zoom*w)/2;
365         y1= ar->winrct.ymin+(winy-sima->zoom*h)/2;
366
367         x1-= sima->zoom*sima->xof;
368         y1-= sima->zoom*sima->yof;
369         
370         /* relative display right */
371         ar->v2d.cur.xmin= ((ar->winrct.xmin - (float)x1)/sima->zoom);
372         ar->v2d.cur.xmax= ar->v2d.cur.xmin + ((float)winx/sima->zoom);
373         
374         /* relative display left */
375         ar->v2d.cur.ymin= ((ar->winrct.ymin-(float)y1)/sima->zoom);
376         ar->v2d.cur.ymax= ar->v2d.cur.ymin + ((float)winy/sima->zoom);
377         
378         /* normalize 0.0..1.0 */
379         ar->v2d.cur.xmin /= w;
380         ar->v2d.cur.xmax /= w;
381         ar->v2d.cur.ymin /= h;
382         ar->v2d.cur.ymax /= h;
383 }
384
385 /* add handlers, stuff you only do once or on area/region changes */
386 static void image_main_area_init(wmWindowManager *wm, ARegion *ar)
387 {
388         ListBase *keymap;
389         
390         // image space manages own v2d
391         // UI_view2d_region_reinit(&ar->v2d, V2D_COMMONVIEW_STANDARD, ar->winx, ar->winy);
392
393         /* image paint polls for mode */
394         keymap= WM_keymap_listbase(wm, "ImagePaint", SPACE_IMAGE, 0);
395         WM_event_add_keymap_handler_bb(&ar->handlers, keymap, &ar->v2d.mask, &ar->winrct);
396         
397         /* own keymaps */
398         keymap= WM_keymap_listbase(wm, "Image Generic", SPACE_IMAGE, 0);
399         WM_event_add_keymap_handler(&ar->handlers, keymap);
400         keymap= WM_keymap_listbase(wm, "Image", SPACE_IMAGE, 0);
401         WM_event_add_keymap_handler_bb(&ar->handlers, keymap, &ar->v2d.mask, &ar->winrct);
402 }
403
404 static void image_main_area_draw(const bContext *C, ARegion *ar)
405 {
406         /* draw entirely, view changes should be handled here */
407         SpaceImage *sima= (SpaceImage*)CTX_wm_space_data(C);
408         Object *obedit= CTX_data_edit_object(C);
409         Scene *scene= CTX_data_scene(C);
410         View2D *v2d= &ar->v2d;
411         //View2DScrollers *scrollers;
412         float col[3];
413         
414         /* clear and setup matrix */
415         UI_GetThemeColor3fv(TH_BACK, col);
416         glClearColor(col[0], col[1], col[2], 0.0);
417         glClear(GL_COLOR_BUFFER_BIT);
418         
419         /* we set view2d from own zoom and offset each time */
420         image_main_area_set_view2d(sima, ar, scene);
421                 
422         /* we draw image in pixelspace */
423         draw_image_main(sima, ar, scene);
424
425         /* and uvs in 0.0-1.0 space */
426         UI_view2d_view_ortho(C, v2d);
427         draw_uvedit_main(sima, ar, scene, obedit);
428         ED_region_draw_cb_draw(C, ar, REGION_DRAW_POST);
429         UI_view2d_view_restore(C);
430         
431         /* scrollers? */
432         /*scrollers= UI_view2d_scrollers_calc(C, v2d, V2D_UNIT_VALUES, V2D_GRID_CLAMP, V2D_ARG_DUMMY, V2D_ARG_DUMMY);
433         UI_view2d_scrollers_draw(C, v2d, scrollers);
434         UI_view2d_scrollers_free(scrollers);*/
435 }
436
437 static void image_modal_keymaps(wmWindowManager *wm, ARegion *ar, int stype)
438 {
439         ListBase *keymap;
440         
441         keymap= WM_keymap_listbase(wm, "UVEdit", 0, 0);
442
443         if(stype==NS_EDITMODE_MESH)
444                 WM_event_add_keymap_handler(&ar->handlers, keymap);
445         else
446                 WM_event_remove_keymap_handler(&ar->handlers, keymap);
447 }
448
449 static void image_main_area_listener(ARegion *ar, wmNotifier *wmn)
450 {
451         /* context changes */
452         switch(wmn->category) {
453                 case NC_SCENE:
454                         switch(wmn->data) {
455                                 case ND_MODE:
456                                         image_modal_keymaps(wmn->wm, ar, wmn->subtype);
457                                         break;
458                         }
459                         break;
460                 case NC_OBJECT:
461                         switch(wmn->data) {
462                                 case ND_GEOM_SELECT:
463                                 case ND_GEOM_DATA:
464                                         ED_region_tag_redraw(ar);
465                                         break;
466                         }
467         }
468 }
469
470 /* *********************** buttons region ************************ */
471
472 /* add handlers, stuff you only do once or on area/region changes */
473 static void image_buttons_area_init(wmWindowManager *wm, ARegion *ar)
474 {
475         ListBase *keymap;
476
477         ED_region_panels_init(wm, ar);
478         
479         keymap= WM_keymap_listbase(wm, "Image Generic", SPACE_IMAGE, 0);
480         WM_event_add_keymap_handler(&ar->handlers, keymap);
481 }
482
483 static void image_buttons_area_draw(const bContext *C, ARegion *ar)
484 {
485         ED_region_panels(C, ar, 1, NULL);
486 }
487
488 static void image_buttons_area_listener(ARegion *ar, wmNotifier *wmn)
489 {
490         /* context changes */
491         switch(wmn->category) {
492                 
493         }
494 }
495
496 /************************* header region **************************/
497
498 /* add handlers, stuff you only do once or on area/region changes */
499 static void image_header_area_init(wmWindowManager *wm, ARegion *ar)
500 {
501 #if 0
502         UI_view2d_region_reinit(&ar->v2d, V2D_COMMONVIEW_HEADER, ar->winx, ar->winy);
503 #else
504         ED_region_header_init(ar);
505 #endif
506 }
507
508 static void image_header_area_draw(const bContext *C, ARegion *ar)
509 {
510         ED_region_header(C, ar);
511 #if 0
512         float col[3];
513         
514         /* clear */
515         if(ED_screen_area_active(C))
516                 UI_GetThemeColor3fv(TH_HEADER, col);
517         else
518                 UI_GetThemeColor3fv(TH_HEADERDESEL, col);
519         
520         glClearColor(col[0], col[1], col[2], 0.0);
521         glClear(GL_COLOR_BUFFER_BIT);
522         
523         /* set view2d view matrix for scrolling (without scrollers) */
524         UI_view2d_view_ortho(C, &ar->v2d);
525         
526         image_header_buttons(C, ar);
527         
528         /* restore view matrix? */
529         UI_view2d_view_restore(C);
530 #endif
531 }
532
533 /**************************** spacetype *****************************/
534
535 /* only called once, from space/spacetypes.c */
536 void ED_spacetype_image(void)
537 {
538         SpaceType *st= MEM_callocN(sizeof(SpaceType), "spacetype image");
539         ARegionType *art;
540         
541         st->spaceid= SPACE_IMAGE;
542         
543         st->new= image_new;
544         st->free= image_free;
545         st->init= image_init;
546         st->duplicate= image_duplicate;
547         st->operatortypes= image_operatortypes;
548         st->keymap= image_keymap;
549         st->refresh= image_refresh;
550         st->listener= image_listener;
551         st->context= image_context;
552         
553         /* regions: main window */
554         art= MEM_callocN(sizeof(ARegionType), "spacetype image region");
555         art->regionid = RGN_TYPE_WINDOW;
556         art->keymapflag= ED_KEYMAP_FRAMES;
557         art->init= image_main_area_init;
558         art->draw= image_main_area_draw;
559         art->listener= image_main_area_listener;
560         art->keymapflag= 0;
561
562         BLI_addhead(&st->regiontypes, art);
563         
564         /* regions: listview/buttons */
565         art= MEM_callocN(sizeof(ARegionType), "spacetype image region");
566         art->regionid = RGN_TYPE_UI;
567         art->minsizex= 220; // XXX
568         art->keymapflag= ED_KEYMAP_UI|ED_KEYMAP_FRAMES;
569         art->listener= image_buttons_area_listener;
570         art->init= image_buttons_area_init;
571         art->draw= image_buttons_area_draw;
572         BLI_addhead(&st->regiontypes, art);
573
574         image_buttons_register(art);
575
576         /* regions: header */
577         art= MEM_callocN(sizeof(ARegionType), "spacetype image region");
578         art->regionid = RGN_TYPE_HEADER;
579         art->minsizey= HEADERY;
580         art->keymapflag= ED_KEYMAP_UI|ED_KEYMAP_VIEW2D|ED_KEYMAP_FRAMES;
581         art->init= image_header_area_init;
582         art->draw= image_header_area_draw;
583         
584         BLI_addhead(&st->regiontypes, art);
585         
586         
587         BKE_spacetype_register(st);
588 }
589
590 /**************************** common state *****************************/
591
592 /* note; image_panel_properties() uses pointer to sima->image directly */
593 Image *ED_space_image(SpaceImage *sima)
594 {
595         return sima->image;
596 }
597
598 /* called to assign images to UV faces */
599 void ED_space_image_set(bContext *C, SpaceImage *sima, Scene *scene, Object *obedit, Image *ima)
600 {
601         ED_uvedit_assign_image(scene, obedit, ima, sima->image);
602
603         /* change the space ima after because uvedit_face_visible uses the space ima
604          * to check if the face is displayed in UV-localview */
605         sima->image= ima;
606
607         if(ima == NULL || ima->type==IMA_TYPE_R_RESULT || ima->type==IMA_TYPE_COMPOSITE)
608                 sima->flag &= ~SI_DRAWTOOL;
609
610         if(sima->image)
611                 BKE_image_signal(sima->image, &sima->iuser, IMA_SIGNAL_USER_NEW_IMAGE);
612
613         if(sima->image && sima->image->id.us==0)
614                 sima->image->id.us= 1;
615
616         if(C) {
617                 if(obedit)
618                         WM_event_add_notifier(C, NC_OBJECT|ND_GEOM_DATA, obedit);
619
620                 ED_area_tag_redraw(CTX_wm_area(C));
621         }
622 }
623
624 ImBuf *ED_space_image_buffer(SpaceImage *sima)
625 {
626         ImBuf *ibuf;
627
628         if(sima->image) {
629 #if 0
630                 if(sima->image->type==IMA_TYPE_R_RESULT && BIF_show_render_spare())
631                         return BIF_render_spare_imbuf();
632                 else
633 #endif
634                         ibuf= BKE_image_get_ibuf(sima->image, &sima->iuser);
635
636                 if(ibuf && (ibuf->rect || ibuf->rect_float))
637                         return ibuf;
638         }
639
640         return NULL;
641 }
642
643 void ED_image_size(Image *ima, int *width, int *height)
644 {
645         ImBuf *ibuf;
646
647         ibuf= (ima)? BKE_image_get_ibuf(ima, NULL): NULL;
648
649         if(ibuf && ibuf->x > 0 && ibuf->y > 0) {
650                 *width= ibuf->x;
651                 *height= ibuf->y;
652         }
653         else {
654                 *width= 256;
655                 *height= 256;
656         }
657 }
658
659 void ED_space_image_size(SpaceImage *sima, int *width, int *height)
660 {
661         ImBuf *ibuf;
662
663         ibuf= ED_space_image_buffer(sima);
664
665         if(ibuf && ibuf->x > 0 && ibuf->y > 0) {
666                 *width= ibuf->x;
667                 *height= ibuf->y;
668         }
669         /* I know a bit weak... but preview uses not actual image size */
670         // XXX else if(image_preview_active(sima, width, height));
671         else {
672                 *width= 256;
673                 *height= 256;
674         }
675 }
676
677 void ED_image_aspect(Image *ima, float *aspx, float *aspy)
678 {
679         *aspx= *aspy= 1.0;
680
681         if((ima == NULL) || (ima->type == IMA_TYPE_R_RESULT) || (ima->type == IMA_TYPE_COMPOSITE) ||
682            (ima->tpageflag & IMA_TILES) || (ima->aspx==0.0 || ima->aspy==0.0))
683                 return;
684
685         /* x is always 1 */
686         *aspy = ima->aspy/ima->aspx;
687 }
688
689 void ED_space_image_aspect(SpaceImage *sima, float *aspx, float *aspy)
690 {
691         ED_image_aspect(ED_space_image(sima), aspx, aspy);
692 }
693
694 void ED_space_image_zoom(SpaceImage *sima, ARegion *ar, float *zoomx, float *zoomy)
695 {
696         int width, height;
697
698         ED_space_image_size(sima, &width, &height);
699
700         *zoomx= (float)(ar->winrct.xmax - ar->winrct.xmin)/(float)((ar->v2d.cur.xmax - ar->v2d.cur.xmin)*width);
701         *zoomy= (float)(ar->winrct.ymax - ar->winrct.ymin)/(float)((ar->v2d.cur.ymax - ar->v2d.cur.ymin)*height);
702 }
703
704 void ED_space_image_uv_aspect(SpaceImage *sima, float *aspx, float *aspy)
705 {
706         int w, h;
707
708         ED_space_image_aspect(sima, aspx, aspy);
709         ED_space_image_size(sima, &w, &h);
710
711         *aspx *= (float)w/256.0f;
712         *aspy *= (float)h/256.0f;
713 }
714
715 void ED_image_uv_aspect(Image *ima, float *aspx, float *aspy)
716 {
717         int w, h;
718
719         ED_image_aspect(ima, aspx, aspy);
720         ED_image_size(ima, &w, &h);
721
722         *aspx *= (float)w;
723         *aspy *= (float)h;
724 }
725
726 int ED_space_image_show_render(SpaceImage *sima)
727 {
728         return (sima->image && ELEM(sima->image->type, IMA_TYPE_R_RESULT, IMA_TYPE_COMPOSITE));
729 }
730
731 int ED_space_image_show_paint(SpaceImage *sima)
732 {
733         if(ED_space_image_show_render(sima))
734                 return 0;
735
736         return (sima->flag & SI_DRAWTOOL);
737 }
738
739 int ED_space_image_show_uvedit(SpaceImage *sima, Object *obedit)
740 {
741         if(ED_space_image_show_render(sima))
742                 return 0;
743         if(ED_space_image_show_paint(sima))
744                 return 0;
745
746         if(obedit && obedit->type == OB_MESH) {
747                 EditMesh *em = BKE_mesh_get_editmesh(obedit->data);
748                 int ret;
749         
750                 ret = EM_texFaceCheck(em);
751
752                 BKE_mesh_end_editmesh(obedit->data, em);
753                 return ret;
754         }
755
756         return 0;
757 }
758
759 int ED_space_image_show_uvshadow(SpaceImage *sima, Object *obedit)
760 {
761         if(ED_space_image_show_render(sima))
762                 return 0;
763
764         if(ED_space_image_show_paint(sima))
765                 if(obedit && obedit->type == OB_MESH) {
766                         EditMesh *em = BKE_mesh_get_editmesh(obedit->data);
767                         int ret;
768
769                         ret = EM_texFaceCheck(em);
770
771                         BKE_mesh_end_editmesh(obedit->data, em);
772                         return ret;
773                 }
774
775         return 0;
776 }
777