own patch [#27752] Python Callback (Scriptlink functionality)
[blender.git] / source / blender / windowmanager / intern / wm_files.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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
19  *
20  * The Original Code is Copyright (C) 2001-2002 by NaN Holding BV.
21  * All rights reserved.
22  *
23  * Contributor(s): Blender Foundation 2007
24  *
25  * ***** END GPL LICENSE BLOCK *****
26  */
27
28 /** \file blender/windowmanager/intern/wm_files.c
29  *  \ingroup wm
30  */
31
32
33         /* placed up here because of crappy
34          * winsock stuff.
35          */
36 #include <stddef.h>
37 #include <string.h>
38 #include <errno.h>
39
40 #include "zlib.h" /* wm_read_exotic() */
41
42 #ifdef WIN32
43 #include <windows.h> /* need to include windows.h so _WIN32_IE is defined  */
44 #ifndef _WIN32_IE
45 #define _WIN32_IE 0x0400 /* minimal requirements for SHGetSpecialFolderPath on MINGW MSVC has this defined already */
46 #endif
47 #include <shlobj.h> /* for SHGetSpecialFolderPath, has to be done before BLI_winstuff because 'near' is disabled through BLI_windstuff */
48 #include <process.h> /* getpid */
49 #include "BLI_winstuff.h"
50 #else
51 #include <unistd.h> /* getpid */
52 #endif
53
54 #include "MEM_guardedalloc.h"
55 #include "MEM_CacheLimiterC-Api.h"
56
57 #include "BLI_blenlib.h"
58 #include "BLI_linklist.h"
59 #include "BLI_utildefines.h"
60 #include "BLI_callbacks.h"
61
62 #include "DNA_anim_types.h"
63 #include "DNA_ipo_types.h" // XXX old animation system
64 #include "DNA_object_types.h"
65 #include "DNA_space_types.h"
66 #include "DNA_userdef_types.h"
67 #include "DNA_scene_types.h"
68 #include "DNA_screen_types.h"
69 #include "DNA_windowmanager_types.h"
70
71 #include "BKE_blender.h"
72 #include "BKE_context.h"
73 #include "BKE_depsgraph.h"
74 #include "BKE_DerivedMesh.h"
75 #include "BKE_font.h"
76 #include "BKE_global.h"
77 #include "BKE_library.h"
78 #include "BKE_main.h"
79 #include "BKE_packedFile.h"
80 #include "BKE_report.h"
81 #include "BKE_sound.h"
82 #include "BKE_texture.h"
83
84
85 #include "BLO_readfile.h"
86 #include "BLO_writefile.h"
87
88 #include "RNA_access.h"
89
90 #include "IMB_imbuf.h"
91 #include "IMB_imbuf_types.h"
92 #include "IMB_thumbs.h"
93
94 #include "ED_datafiles.h"
95 #include "ED_object.h"
96 #include "ED_screen.h"
97 #include "ED_sculpt.h"
98 #include "ED_view3d.h"
99 #include "ED_util.h"
100
101 #include "RE_pipeline.h" /* only to report missing engine */
102
103 #include "GHOST_C-api.h"
104 #include "GHOST_Path-api.h"
105
106 #include "UI_interface.h"
107
108 #include "GPU_draw.h"
109
110 #ifdef WITH_PYTHON
111 #include "BPY_extern.h"
112 #endif
113
114 #include "WM_api.h"
115 #include "WM_types.h"
116 #include "wm.h"
117 #include "wm_files.h"
118 #include "wm_window.h"
119 #include "wm_event_system.h"
120
121 static void write_history(void);
122
123 /* To be able to read files without windows closing, opening, moving 
124    we try to prepare for worst case:
125    - active window gets active screen from file 
126    - restoring the screens from non-active windows 
127    Best case is all screens match, in that case they get assigned to proper window  
128 */
129 static void wm_window_match_init(bContext *C, ListBase *wmlist)
130 {
131         wmWindowManager *wm;
132         wmWindow *win, *active_win;
133         
134         *wmlist= G.main->wm;
135         G.main->wm.first= G.main->wm.last= NULL;
136         
137         active_win = CTX_wm_window(C);
138
139         /* first wrap up running stuff */
140         /* code copied from wm_init_exit.c */
141         for(wm= wmlist->first; wm; wm= wm->id.next) {
142                 
143                 WM_jobs_stop_all(wm);
144                 
145                 for(win= wm->windows.first; win; win= win->next) {
146                 
147                         CTX_wm_window_set(C, win);      /* needed by operator close callbacks */
148                         WM_event_remove_handlers(C, &win->handlers);
149                         WM_event_remove_handlers(C, &win->modalhandlers);
150                         ED_screen_exit(C, win, win->screen);
151                 }
152         }
153         
154         /* reset active window */
155         CTX_wm_window_set(C, active_win);
156
157         ED_editors_exit(C);
158         
159 return; 
160         if(wm==NULL) return;
161         if(G.fileflags & G_FILE_NO_UI) return;
162         
163         /* we take apart the used screens from non-active window */
164         for(win= wm->windows.first; win; win= win->next) {
165                 BLI_strncpy(win->screenname, win->screen->id.name, MAX_ID_NAME);
166                 if(win!=wm->winactive) {
167                         BLI_remlink(&G.main->screen, win->screen);
168                         //BLI_addtail(screenbase, win->screen);
169                 }
170         }
171 }
172
173 /* match old WM with new, 4 cases:
174   1- no current wm, no read wm: make new default
175   2- no current wm, but read wm: that's OK, do nothing
176   3- current wm, but not in file: try match screen names
177   4- current wm, and wm in file: try match ghostwin 
178 */
179
180 static void wm_window_match_do(bContext *C, ListBase *oldwmlist)
181 {
182         wmWindowManager *oldwm, *wm;
183         wmWindow *oldwin, *win;
184         
185         /* cases 1 and 2 */
186         if(oldwmlist->first==NULL) {
187                 if(G.main->wm.first); /* nothing todo */
188                 else
189                         wm_add_default(C);
190         }
191         else {
192                 /* cases 3 and 4 */
193                 
194                 /* we've read file without wm..., keep current one entirely alive */
195                 if(G.main->wm.first==NULL) {
196                         /* when loading without UI, no matching needed */
197                         if(!(G.fileflags & G_FILE_NO_UI)) {
198                                 bScreen *screen= CTX_wm_screen(C);
199
200                                 /* match oldwm to new dbase, only old files */
201                                 for(wm= oldwmlist->first; wm; wm= wm->id.next) {
202                                         
203                                         for(win= wm->windows.first; win; win= win->next) {
204                                                 /* all windows get active screen from file */
205                                                 if(screen->winid==0)
206                                                         win->screen= screen;
207                                                 else 
208                                                         win->screen= ED_screen_duplicate(win, screen);
209                                                 
210                                                 BLI_strncpy(win->screenname, win->screen->id.name+2, sizeof(win->screenname));
211                                                 win->screen->winid= win->winid;
212                                         }
213                                 }
214                         }
215                         
216                         G.main->wm= *oldwmlist;
217                         
218                         /* screens were read from file! */
219                         ED_screens_initialize(G.main->wm.first);
220                 }
221                 else {
222                         /* what if old was 3, and loaded 1? */
223                         /* this code could move to setup_appdata */
224                         oldwm= oldwmlist->first;
225                         wm= G.main->wm.first;
226
227                         /* ensure making new keymaps and set space types */
228                         wm->initialized= 0;
229                         wm->winactive= NULL;
230                         
231                         /* only first wm in list has ghostwins */
232                         for(win= wm->windows.first; win; win= win->next) {
233                                 for(oldwin= oldwm->windows.first; oldwin; oldwin= oldwin->next) {
234                                         
235                                         if(oldwin->winid == win->winid ) {
236                                                 win->ghostwin= oldwin->ghostwin;
237                                                 win->active= oldwin->active;
238                                                 if(win->active)
239                                                         wm->winactive= win;
240
241                                                 if(!G.background) /* file loading in background mode still calls this */
242                                                         GHOST_SetWindowUserData(win->ghostwin, win);    /* pointer back */
243
244                                                 oldwin->ghostwin= NULL;
245                                                 
246                                                 win->eventstate= oldwin->eventstate;
247                                                 oldwin->eventstate= NULL;
248                                                 
249                                                 /* ensure proper screen rescaling */
250                                                 win->sizex= oldwin->sizex;
251                                                 win->sizey= oldwin->sizey;
252                                                 win->posx= oldwin->posx;
253                                                 win->posy= oldwin->posy;
254                                         }
255                                 }
256                         }
257                         wm_close_and_free_all(C, oldwmlist);
258                 }
259         }
260 }
261
262 /* in case UserDef was read, we re-initialize all, and do versioning */
263 static void wm_init_userdef(bContext *C)
264 {
265         UI_init_userdef();
266         MEM_CacheLimiter_set_maximum(U.memcachelimit * 1024 * 1024);
267         sound_init(CTX_data_main(C));
268
269         /* needed so loading a file from the command line respects user-pref [#26156] */
270         if(U.flag & USER_FILENOUI)      G.fileflags |= G_FILE_NO_UI;
271         else                                            G.fileflags &= ~G_FILE_NO_UI;
272
273         /* set the python auto-execute setting from user prefs */
274         /* enabled by default, unless explicitly enabled in the command line which overrides */
275         if((G.f & G_SCRIPT_OVERRIDE_PREF) == 0) {
276                 if ((U.flag & USER_SCRIPT_AUTOEXEC_DISABLE) == 0) G.f |=  G_SCRIPT_AUTOEXEC;
277                 else                                                                                      G.f &= ~G_SCRIPT_AUTOEXEC;
278         }
279         if(U.tempdir[0]) BLI_where_is_temp(btempdir, FILE_MAX, 1);
280 }
281
282
283
284 /* return codes */
285 #define BKE_READ_EXOTIC_FAIL_PATH               -3 /* file format is not supported */
286 #define BKE_READ_EXOTIC_FAIL_FORMAT             -2 /* file format is not supported */
287 #define BKE_READ_EXOTIC_FAIL_OPEN               -1 /* Can't open the file */
288 #define BKE_READ_EXOTIC_OK_BLEND                 0 /* .blend file */
289 #define BKE_READ_EXOTIC_OK_OTHER                 1 /* other supported formats */
290
291 /* intended to check for non-blender formats but for now it only reads blends */
292 static int wm_read_exotic(Scene *UNUSED(scene), const char *name)
293 {
294         int len;
295         gzFile gzfile;
296         char header[7];
297         int retval;
298
299         // make sure we're not trying to read a directory....
300
301         len= strlen(name);
302         if (ELEM(name[len-1], '/', '\\')) {
303                 retval= BKE_READ_EXOTIC_FAIL_PATH;
304         }
305         else {
306                 gzfile = gzopen(name,"rb");
307
308                 if (gzfile == NULL) {
309                         retval= BKE_READ_EXOTIC_FAIL_OPEN;
310                 }
311                 else {
312                         len= gzread(gzfile, header, sizeof(header));
313                         gzclose(gzfile);
314                         if (len == sizeof(header) && strncmp(header, "BLENDER", 7) == 0) {
315                                 retval= BKE_READ_EXOTIC_OK_BLEND;
316                         }
317                         else {
318                                 //XXX waitcursor(1);
319                                 /*
320                                 if(is_foo_format(name)) {
321                                         read_foo(name);
322                                         retval= BKE_READ_EXOTIC_OK_OTHER;
323                                 }
324                                 else
325                                  */
326                                 {
327                                         retval= BKE_READ_EXOTIC_FAIL_FORMAT;
328                                 }
329                                 //XXX waitcursor(0);
330                         }
331                 }
332         }
333
334         return retval;
335 }
336
337 void WM_read_file(bContext *C, const char *filepath, ReportList *reports)
338 {
339         int retval;
340
341         /* so we can get the error message */
342         errno = 0;
343
344         WM_cursor_wait(1);
345
346         BLI_exec_cb(CTX_data_main(C), NULL, BLI_CB_EVT_LOAD_PRE);
347
348         /* first try to append data from exotic file formats... */
349         /* it throws error box when file doesnt exist and returns -1 */
350         /* note; it should set some error message somewhere... (ton) */
351         retval= wm_read_exotic(CTX_data_scene(C), filepath);
352         
353         /* we didn't succeed, now try to read Blender file */
354         if (retval == BKE_READ_EXOTIC_OK_BLEND) {
355                 int G_f= G.f;
356                 ListBase wmbase;
357
358                 /* put aside screens to match with persistant windows later */
359                 /* also exit screens and editors */
360                 wm_window_match_init(C, &wmbase); 
361                 
362                 retval= BKE_read_file(C, filepath, reports);
363                 G.save_over = 1;
364
365                 /* this flag is initialized by the operator but overwritten on read.
366                  * need to re-enable it here else drivers + registered scripts wont work. */
367                 if(G.f != G_f) {
368                         const int flags_keep= (G_SCRIPT_AUTOEXEC | G_SCRIPT_OVERRIDE_PREF);
369                         G.f= (G.f & ~flags_keep) | (G_f & flags_keep);
370                 }
371
372                 /* match the read WM with current WM */
373                 wm_window_match_do(C, &wmbase);
374                 WM_check(C); /* opens window(s), checks keymaps */
375                 
376 // XXX          mainwindow_set_filename_to_title(G.main->name);
377
378                 if(retval == BKE_READ_FILE_OK_USERPREFS) wm_init_userdef(C);    // in case a userdef is read from regular .blend
379                 
380                 if (retval != BKE_READ_FILE_FAIL) {
381                         G.relbase_valid = 1;
382                         if(!G.background) /* assume automated tasks with background, dont write recent file list */
383                                 write_history();
384                 }
385
386
387                 WM_event_add_notifier(C, NC_WM|ND_FILEREAD, NULL);
388 //              refresh_interface_font();
389
390                 CTX_wm_window_set(C, CTX_wm_manager(C)->windows.first);
391
392                 ED_editors_init(C);
393                 DAG_on_visible_update(CTX_data_main(C), TRUE);
394
395 #ifdef WITH_PYTHON
396                 /* run any texts that were loaded in and flagged as modules */
397                 BPY_driver_reset();
398                 BPY_app_handlers_reset();
399                 BPY_modules_load_user(C);
400 #endif
401                 CTX_wm_window_set(C, NULL); /* exits queues */
402
403 #if 0   /* gives popups on windows but not linux, bug in report API but disable for now to stop users getting annoyed  */
404                 /* TODO, make this show in header info window */
405                 {
406                         Scene *sce;
407                         for(sce= G.main->scene.first; sce; sce= sce->id.next) {
408                                 if(sce->r.engine[0] && BLI_findstring(&R_engines, sce->r.engine, offsetof(RenderEngineType, idname)) == NULL) {
409                                         BKE_reportf(reports, RPT_WARNING, "Engine not available: '%s' for scene: %s, an addon may need to be installed or enabled", sce->r.engine, sce->id.name+2);
410                                 }
411                         }
412                 }
413 #endif
414
415                 // XXX          undo_editmode_clear();
416                 BKE_reset_undo();
417                 BKE_write_undo(C, "original");  /* save current state */
418
419                 BLI_exec_cb(CTX_data_main(C), NULL, BLI_CB_EVT_LOAD_POST);
420         }
421         else if(retval == BKE_READ_EXOTIC_OK_OTHER)
422                 BKE_write_undo(C, "Import file");
423         else if(retval == BKE_READ_EXOTIC_FAIL_OPEN) {
424                 BKE_reportf(reports, RPT_ERROR, "Can't read file: \"%s\", %s.", filepath, errno ? strerror(errno) : "Unable to open the file");
425         }
426         else if(retval == BKE_READ_EXOTIC_FAIL_FORMAT) {
427                 BKE_reportf(reports, RPT_ERROR, "File format is not supported in file: \"%s\".", filepath);
428         }
429         else if(retval == BKE_READ_EXOTIC_FAIL_PATH) {
430                 BKE_reportf(reports, RPT_ERROR, "File path invalid: \"%s\".", filepath);
431         }
432         else {
433                 BKE_reportf(reports, RPT_ERROR, "Unknown error loading: \"%s\".", filepath);
434                 BLI_assert(!"invalid 'retval'");
435         }
436
437         WM_cursor_wait(0);
438
439 }
440
441
442 /* called on startup,  (context entirely filled with NULLs) */
443 /* or called for 'New File' */
444 /* op can be NULL */
445 int WM_read_homefile(bContext *C, ReportList *reports, short from_memory)
446 {
447         ListBase wmbase;
448         char tstr[FILE_MAXDIR+FILE_MAXFILE];
449         int success= 0;
450         
451         free_ttfont(); /* still weird... what does it here? */
452                 
453         G.relbase_valid = 0;
454         if (!from_memory) {
455                 char *cfgdir = BLI_get_folder(BLENDER_USER_CONFIG, NULL);
456                 if (cfgdir) {
457                         BLI_make_file_string(G.main->name, tstr, cfgdir, BLENDER_STARTUP_FILE);
458                 } else {
459                         tstr[0] = '\0';
460                         from_memory = 1;
461                         BKE_report(reports, RPT_INFO, "Config directory with "STRINGIFY(BLENDER_STARTUP_FILE)" file not found.");
462                 }
463         }
464         
465         /* prevent loading no UI */
466         G.fileflags &= ~G_FILE_NO_UI;
467         
468         /* put aside screens to match with persistant windows later */
469         wm_window_match_init(C, &wmbase); 
470         
471         if (!from_memory && BLI_exists(tstr)) {
472                 success = (BKE_read_file(C, tstr, NULL) != BKE_READ_FILE_FAIL);
473                 
474                 if(U.themes.first==NULL) {
475                         printf("\nError: No valid "STRINGIFY(BLENDER_STARTUP_FILE)", fall back to built-in default.\n\n");
476                         success = 0;
477                 }
478         }
479         if(success==0) {
480                 success = BKE_read_file_from_memory(C, datatoc_startup_blend, datatoc_startup_blend_size, NULL);
481                 if (wmbase.first == NULL) wm_clear_default_size(C);
482
483 #ifdef WITH_PYTHON_SECURITY /* not default */
484                 /* use alternative setting for security nuts
485                  * otherwise we'd need to patch the binary blob - startup.blend.c */
486                 U.flag |= USER_SCRIPT_AUTOEXEC_DISABLE;
487 #endif
488         }
489         
490         /* prevent buggy files that had G_FILE_RELATIVE_REMAP written out by mistake. Screws up autosaves otherwise
491          * can remove this eventually, only in a 2.53 and older, now its not written */
492         G.fileflags &= ~G_FILE_RELATIVE_REMAP;
493         
494         /* check userdef before open window, keymaps etc */
495         wm_init_userdef(C);
496         
497         /* match the read WM with current WM */
498         wm_window_match_do(C, &wmbase); 
499         WM_check(C); /* opens window(s), checks keymaps */
500
501         G.main->name[0]= '\0';
502
503         /* When loading factory settings, the reset solid OpenGL lights need to be applied. */
504         if (!G.background) GPU_default_lights();
505         
506         /* XXX */
507         G.save_over = 0;        // start with save preference untitled.blend
508         G.fileflags &= ~G_FILE_AUTOPLAY;        /*  disable autoplay in startup.blend... */
509 //      mainwindow_set_filename_to_title("");   // empty string re-initializes title to "Blender"
510         
511 //      refresh_interface_font();
512         
513 //      undo_editmode_clear();
514         BKE_reset_undo();
515         BKE_write_undo(C, "original");  /* save current state */
516
517         ED_editors_init(C);
518         DAG_on_visible_update(CTX_data_main(C), TRUE);
519
520 #ifdef WITH_PYTHON
521         if(CTX_py_init_get(C)) {
522                 /* sync addons, these may have changed from the defaults */
523                 BPY_string_exec(C, "__import__('addon_utils').reset_all()");
524
525                 BPY_driver_reset();
526                 BPY_app_handlers_reset();
527                 BPY_modules_load_user(C);
528         }
529 #endif
530
531         WM_event_add_notifier(C, NC_WM|ND_FILEREAD, NULL);
532
533         /* in background mode the scene will stay NULL */
534         if(!G.background) {
535                 CTX_wm_window_set(C, NULL); /* exits queues */
536         }
537
538         return TRUE;
539 }
540
541 int WM_read_homefile_exec(bContext *C, wmOperator *op)
542 {
543         int from_memory= strcmp(op->type->idname, "WM_OT_read_factory_settings") == 0;
544         return WM_read_homefile(C, op->reports, from_memory) ? OPERATOR_FINISHED : OPERATOR_CANCELLED;
545 }
546
547 void WM_read_history(void)
548 {
549         char name[FILE_MAX];
550         LinkNode *l, *lines;
551         struct RecentFile *recent;
552         char *line;
553         int num;
554         char *cfgdir = BLI_get_folder(BLENDER_USER_CONFIG, NULL);
555
556         if (!cfgdir) return;
557
558         BLI_make_file_string("/", name, cfgdir, BLENDER_HISTORY_FILE);
559
560         lines= BLI_read_file_as_lines(name);
561
562         G.recent_files.first = G.recent_files.last = NULL;
563
564         /* read list of recent opend files from recent-files.txt to memory */
565         for (l= lines, num= 0; l && (num<U.recent_files); l= l->next) {
566                 line = l->link;
567                 if (line[0] && BLI_exists(line)) {
568                         recent = (RecentFile*)MEM_mallocN(sizeof(RecentFile),"RecentFile");
569                         BLI_addtail(&(G.recent_files), recent);
570                         recent->filepath = BLI_strdup(line);
571                         num++;
572                 }
573         }
574         
575         BLI_free_file_lines(lines);
576
577 }
578
579 static void write_history(void)
580 {
581         struct RecentFile *recent, *next_recent;
582         char name[FILE_MAXDIR+FILE_MAXFILE];
583         char *user_config_dir;
584         FILE *fp;
585         int i;
586
587         /* will be NULL in background mode */
588         user_config_dir = BLI_get_folder_create(BLENDER_USER_CONFIG, NULL);
589         if(!user_config_dir)
590                 return;
591
592         BLI_make_file_string("/", name, user_config_dir, BLENDER_HISTORY_FILE);
593
594         recent = G.recent_files.first;
595         /* refresh recent-files.txt of recent opened files, when current file was changed */
596         if(!(recent) || (BLI_path_cmp(recent->filepath, G.main->name)!=0)) {
597                 fp= fopen(name, "w");
598                 if (fp) {
599                         /* add current file to the beginning of list */
600                         recent = (RecentFile*)MEM_mallocN(sizeof(RecentFile),"RecentFile");
601                         recent->filepath = BLI_strdup(G.main->name);
602                         BLI_addhead(&(G.recent_files), recent);
603                         /* write current file to recent-files.txt */
604                         fprintf(fp, "%s\n", recent->filepath);
605                         recent = recent->next;
606                         i=1;
607                         /* write rest of recent opened files to recent-files.txt */
608                         while((i<U.recent_files) && (recent)){
609                                 /* this prevents to have duplicities in list */
610                                 if (BLI_path_cmp(recent->filepath, G.main->name)!=0) {
611                                         fprintf(fp, "%s\n", recent->filepath);
612                                         recent = recent->next;
613                                 }
614                                 else {
615                                         next_recent = recent->next;
616                                         MEM_freeN(recent->filepath);
617                                         BLI_freelinkN(&(G.recent_files), recent);
618                                         recent = next_recent;
619                                 }
620                                 i++;
621                         }
622                         fclose(fp);
623                 }
624
625                 /* also update most recent files on System */
626                 GHOST_addToSystemRecentFiles(G.main->name);
627         }
628 }
629
630 static ImBuf *blend_file_thumb(Scene *scene, int **thumb_pt)
631 {
632         /* will be scaled down, but gives some nice oversampling */
633         ImBuf *ibuf;
634         int *thumb;
635         char err_out[256]= "unknown";
636
637         *thumb_pt= NULL;
638         
639         if(G.background || scene->camera==NULL)
640                 return NULL;
641
642         /* gets scaled to BLEN_THUMB_SIZE */
643         ibuf= ED_view3d_draw_offscreen_imbuf_simple(scene, scene->camera, BLEN_THUMB_SIZE * 2, BLEN_THUMB_SIZE * 2, IB_rect, OB_SOLID, err_out);
644         
645         if(ibuf) {              
646                 float aspect= (scene->r.xsch*scene->r.xasp) / (scene->r.ysch*scene->r.yasp);
647
648                 /* dirty oversampling */
649                 IMB_scaleImBuf(ibuf, BLEN_THUMB_SIZE, BLEN_THUMB_SIZE);
650
651                 /* add pretty overlay */
652                 IMB_overlayblend_thumb(ibuf->rect, ibuf->x, ibuf->y, aspect);
653                 
654                 /* first write into thumb buffer */
655                 thumb= MEM_mallocN(((2 + (BLEN_THUMB_SIZE * BLEN_THUMB_SIZE))) * sizeof(int), "write_file thumb");
656
657                 thumb[0] = BLEN_THUMB_SIZE;
658                 thumb[1] = BLEN_THUMB_SIZE;
659
660                 memcpy(thumb + 2, ibuf->rect, BLEN_THUMB_SIZE * BLEN_THUMB_SIZE * sizeof(int));
661         }
662         else {
663                 /* '*thumb_pt' needs to stay NULL to prevent a bad thumbnail from being handled */
664                 fprintf(stderr, "blend_file_thumb failed to create thumbnail: %s\n", err_out);
665                 thumb= NULL;
666         }
667         
668         /* must be freed by caller */
669         *thumb_pt= thumb;
670         
671         return ibuf;
672 }
673
674 /* easy access from gdb */
675 int write_crash_blend(void)
676 {
677         char path[FILE_MAX];
678         int fileflags = G.fileflags & ~(G_FILE_HISTORY); /* don't do file history on crash file */
679
680         BLI_strncpy(path, G.main->name, sizeof(path));
681         BLI_replace_extension(path, sizeof(path), "_crash.blend");
682         if(BLO_write_file(G.main, path, fileflags, NULL, NULL)) {
683                 printf("written: %s\n", path);
684                 return 1;
685         }
686         else {
687                 printf("failed: %s\n", path);
688                 return 0;
689         }
690 }
691
692 int WM_write_file(bContext *C, const char *target, int fileflags, ReportList *reports, int copy)
693 {
694         Library *li;
695         int len;
696         char filepath[FILE_MAX];
697
698         int *thumb= NULL;
699         ImBuf *ibuf_thumb= NULL;
700
701         len = strlen(target);
702         
703         if (len == 0) {
704                 BKE_report(reports, RPT_ERROR, "Path is empty, cannot save");
705                 return -1;
706         }
707
708         if (len >= FILE_MAX) {
709                 BKE_report(reports, RPT_ERROR, "Path too long, cannot save");
710                 return -1;
711         }
712  
713         BLI_strncpy(filepath, target, FILE_MAX);
714         BLI_replace_extension(filepath, FILE_MAX, ".blend");
715         /* dont use 'target' anymore */
716         
717         /* send the OnSave event */
718         for (li= G.main->library.first; li; li= li->id.next) {
719                 if (BLI_path_cmp(li->filepath, filepath) == 0) {
720                         BKE_reportf(reports, RPT_ERROR, "Can't overwrite used library '%.200s'", filepath);
721                         return -1;
722                 }
723         }
724
725         BLI_exec_cb(G.main, NULL, BLI_CB_EVT_SAVE_PRE);
726
727         /* operator now handles overwrite checks */
728
729         if (G.fileflags & G_AUTOPACK) {
730                 packAll(G.main, reports);
731         }
732         
733         ED_object_exit_editmode(C, EM_DO_UNDO);
734         ED_sculpt_force_update(C);
735
736         /* don't forget not to return without! */
737         WM_cursor_wait(1);
738         
739         /* blend file thumbnail */
740         ibuf_thumb= blend_file_thumb(CTX_data_scene(C), &thumb);
741
742         fileflags |= G_FILE_HISTORY; /* write file history */
743
744         if (BLO_write_file(CTX_data_main(C), filepath, fileflags, reports, thumb)) {
745                 if(!copy) {
746                         G.relbase_valid = 1;
747                         BLI_strncpy(G.main->name, filepath, sizeof(G.main->name));      /* is guaranteed current file */
748         
749                         G.save_over = 1; /* disable untitled.blend convention */
750                 }
751
752                 if(fileflags & G_FILE_COMPRESS) G.fileflags |= G_FILE_COMPRESS;
753                 else G.fileflags &= ~G_FILE_COMPRESS;
754                 
755                 if(fileflags & G_FILE_AUTOPLAY) G.fileflags |= G_FILE_AUTOPLAY;
756                 else G.fileflags &= ~G_FILE_AUTOPLAY;
757
758                 /* prevent background mode scripts from clobbering history */
759                 if(!G.background) {
760                         write_history();
761                 }
762
763                 BLI_exec_cb(G.main, NULL, BLI_CB_EVT_SAVE_POST);
764
765                 /* run this function after because the file cant be written before the blend is */
766                 if (ibuf_thumb) {
767                         ibuf_thumb= IMB_thumb_create(filepath, THB_NORMAL, THB_SOURCE_BLEND, ibuf_thumb);
768                         IMB_freeImBuf(ibuf_thumb);
769                 }
770
771                 if(thumb) MEM_freeN(thumb);
772         }
773         else {
774                 if(ibuf_thumb) IMB_freeImBuf(ibuf_thumb);
775                 if(thumb) MEM_freeN(thumb);
776                 
777                 WM_cursor_wait(0);
778                 return -1;
779         }
780
781         WM_cursor_wait(0);
782         
783         return 0;
784 }
785
786 /* operator entry */
787 int WM_write_homefile(bContext *C, wmOperator *op)
788 {
789         wmWindowManager *wm= CTX_wm_manager(C);
790         wmWindow *win= CTX_wm_window(C);
791         char filepath[FILE_MAXDIR+FILE_MAXFILE];
792         int fileflags;
793         
794         /* check current window and close it if temp */
795         if(win->screen->temp)
796                 wm_window_close(C, wm, win);
797         
798         BLI_make_file_string("/", filepath, BLI_get_folder_create(BLENDER_USER_CONFIG, NULL), BLENDER_STARTUP_FILE);
799         printf("trying to save homefile at %s ", filepath);
800         
801         /*  force save as regular blend file */
802         fileflags = G.fileflags & ~(G_FILE_COMPRESS | G_FILE_AUTOPLAY | G_FILE_LOCK | G_FILE_SIGN | G_FILE_HISTORY);
803
804         if(BLO_write_file(CTX_data_main(C), filepath, fileflags, op->reports, NULL) == 0) {
805                 printf("fail\n");
806                 return OPERATOR_CANCELLED;
807         }
808         
809         printf("ok\n");
810
811         G.save_over= 0;
812
813         return OPERATOR_FINISHED;
814 }
815
816 /************************ autosave ****************************/
817
818 void wm_autosave_location(char *filepath)
819 {
820         char pidstr[32];
821 #ifdef WIN32
822         char *savedir;
823 #endif
824
825         BLI_snprintf(pidstr, sizeof(pidstr), "%d.blend", abs(getpid()));
826
827 #ifdef WIN32
828         /* XXX Need to investigate how to handle default location of '/tmp/'
829          * This is a relative directory on Windows, and it may be
830          * found. Example:
831          * Blender installed on D:\ drive, D:\ drive has D:\tmp\
832          * Now, BLI_exists() will find '/tmp/' exists, but
833          * BLI_make_file_string will create string that has it most likely on C:\
834          * through get_default_root().
835          * If there is no C:\tmp autosave fails. */
836         if (!BLI_exists(U.tempdir)) {
837                 savedir = BLI_get_folder_create(BLENDER_USER_AUTOSAVE, NULL);
838                 BLI_make_file_string("/", filepath, savedir, pidstr);
839                 return;
840         }
841 #endif
842         
843         BLI_make_file_string("/", filepath, U.tempdir, pidstr);
844 }
845
846 void WM_autosave_init(wmWindowManager *wm)
847 {
848         wm_autosave_timer_ended(wm);
849
850         if(U.flag & USER_AUTOSAVE)
851                 wm->autosavetimer= WM_event_add_timer(wm, NULL, TIMERAUTOSAVE, U.savetime*60.0);
852 }
853
854 void wm_autosave_timer(const bContext *C, wmWindowManager *wm, wmTimer *UNUSED(wt))
855 {
856         wmWindow *win;
857         wmEventHandler *handler;
858         char filepath[FILE_MAX];
859         int fileflags;
860
861         WM_event_remove_timer(wm, NULL, wm->autosavetimer);
862
863         /* if a modal operator is running, don't autosave, but try again in 10 seconds */
864         for(win=wm->windows.first; win; win=win->next) {
865                 for(handler=win->modalhandlers.first; handler; handler=handler->next) {
866                         if(handler->op) {
867                                 wm->autosavetimer= WM_event_add_timer(wm, NULL, TIMERAUTOSAVE, 10.0);
868                                 return;
869                         }
870                 }
871         }
872         
873         wm_autosave_location(filepath);
874
875         /*  force save as regular blend file */
876         fileflags = G.fileflags & ~(G_FILE_COMPRESS|G_FILE_AUTOPLAY |G_FILE_LOCK|G_FILE_SIGN|G_FILE_HISTORY);
877
878         /* no error reporting to console */
879         BLO_write_file(CTX_data_main(C), filepath, fileflags, NULL, NULL);
880
881         /* do timer after file write, just in case file write takes a long time */
882         wm->autosavetimer= WM_event_add_timer(wm, NULL, TIMERAUTOSAVE, U.savetime*60.0);
883 }
884
885 void wm_autosave_timer_ended(wmWindowManager *wm)
886 {
887         if(wm->autosavetimer) {
888                 WM_event_remove_timer(wm, NULL, wm->autosavetimer);
889                 wm->autosavetimer= NULL;
890         }
891 }
892
893 void wm_autosave_delete(void)
894 {
895         char filename[FILE_MAX];
896         
897         wm_autosave_location(filename);
898
899         if(BLI_exists(filename)) {
900                 char str[FILE_MAXDIR+FILE_MAXFILE];
901                 BLI_make_file_string("/", str, U.tempdir, "quit.blend");
902
903                 /* if global undo; remove tempsave, otherwise rename */
904                 if(U.uiflag & USER_GLOBALUNDO) BLI_delete(filename, 0, 0);
905                 else BLI_rename(filename, str);
906         }
907 }
908
909 void wm_autosave_read(bContext *C, ReportList *reports)
910 {
911         char filename[FILE_MAX];
912
913         wm_autosave_location(filename);
914         WM_read_file(C, filename, reports);
915 }
916