Merged changes in the trunk up to revision 48893.
[blender.git] / source / blender / windowmanager / intern / wm_files.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) 2001-2002 by NaN Holding BV.
19  * All rights reserved.
20  *
21  * Contributor(s): Blender Foundation 2007
22  *
23  * ***** END GPL LICENSE BLOCK *****
24  */
25
26 /** \file blender/windowmanager/intern/wm_files.c
27  *  \ingroup wm
28  */
29
30
31 /* placed up here because of crappy
32  * winsock stuff.
33  */
34 #include <stddef.h>
35 #include <string.h>
36 #include <errno.h>
37
38 #include "zlib.h" /* wm_read_exotic() */
39
40 #ifdef WIN32
41 #  include <windows.h> /* need to include windows.h so _WIN32_IE is defined  */
42 #  ifndef _WIN32_IE
43 #    define _WIN32_IE 0x0400 /* minimal requirements for SHGetSpecialFolderPath on MINGW MSVC has this defined already */
44 #  endif
45 #  include <shlobj.h>  /* for SHGetSpecialFolderPath, has to be done before BLI_winstuff
46                         * because 'near' is disabled through BLI_windstuff */
47 #  include <process.h> /* getpid */
48 #  include "BLI_winstuff.h"
49 #else
50 #  include <unistd.h> /* getpid */
51 #endif
52
53 #include "MEM_guardedalloc.h"
54 #include "MEM_CacheLimiterC-Api.h"
55
56 #include "BLI_blenlib.h"
57 #include "BLI_linklist.h"
58 #include "BLI_utildefines.h"
59 #include "BLI_callbacks.h"
60
61 #include "BLF_translation.h"
62
63 #include "DNA_anim_types.h"
64 #include "DNA_ipo_types.h" // XXX old animation system
65 #include "DNA_object_types.h"
66 #include "DNA_space_types.h"
67 #include "DNA_userdef_types.h"
68 #include "DNA_scene_types.h"
69 #include "DNA_screen_types.h"
70 #include "DNA_windowmanager_types.h"
71
72 #include "BKE_blender.h"
73 #include "BKE_context.h"
74 #include "BKE_depsgraph.h"
75 #include "BKE_DerivedMesh.h"
76 #include "BKE_font.h"
77 #include "BKE_global.h"
78 #include "BKE_library.h"
79 #include "BKE_main.h"
80 #include "BKE_packedFile.h"
81 #include "BKE_report.h"
82 #include "BKE_sound.h"
83 #include "BKE_screen.h"
84 #include "BKE_texture.h"
85
86
87 #include "BLO_readfile.h"
88 #include "BLO_writefile.h"
89
90 #include "RNA_access.h"
91
92 #include "IMB_imbuf.h"
93 #include "IMB_imbuf_types.h"
94 #include "IMB_thumbs.h"
95
96 #include "ED_datafiles.h"
97 #include "ED_object.h"
98 #include "ED_screen.h"
99 #include "ED_sculpt.h"
100 #include "ED_view3d.h"
101 #include "ED_util.h"
102
103 #include "RE_pipeline.h" /* only to report missing engine */
104
105 #include "GHOST_C-api.h"
106 #include "GHOST_Path-api.h"
107
108 #include "UI_interface.h"
109
110 #include "GPU_draw.h"
111
112 #ifdef WITH_PYTHON
113 #include "BPY_extern.h"
114 #endif
115
116 #include "FRS_freestyle.h"
117
118 #include "WM_api.h"
119 #include "WM_types.h"
120 #include "wm.h"
121 #include "wm_files.h"
122 #include "wm_window.h"
123 #include "wm_event_system.h"
124
125 static void write_history(void);
126
127 /* To be able to read files without windows closing, opening, moving
128  * we try to prepare for worst case:
129  * - active window gets active screen from file
130  * - restoring the screens from non-active windows
131  * Best case is all screens match, in that case they get assigned to proper window
132  */
133 static void wm_window_match_init(bContext *C, ListBase *wmlist)
134 {
135         wmWindowManager *wm;
136         wmWindow *win, *active_win;
137         
138         *wmlist = G.main->wm;
139         G.main->wm.first = G.main->wm.last = NULL;
140         
141         active_win = CTX_wm_window(C);
142
143         /* first wrap up running stuff */
144         /* code copied from wm_init_exit.c */
145         for (wm = wmlist->first; wm; wm = wm->id.next) {
146                 
147                 WM_jobs_stop_all(wm);
148                 
149                 for (win = wm->windows.first; win; win = win->next) {
150                 
151                         CTX_wm_window_set(C, win);  /* needed by operator close callbacks */
152                         WM_event_remove_handlers(C, &win->handlers);
153                         WM_event_remove_handlers(C, &win->modalhandlers);
154                         ED_screen_exit(C, win, win->screen);
155                 }
156         }
157         
158         /* reset active window */
159         CTX_wm_window_set(C, active_win);
160
161         ED_editors_exit(C);
162
163         /* just had return; here from r12991, this code could just get removed?*/
164 #if 0
165         if (wm == NULL) return;
166         if (G.fileflags & G_FILE_NO_UI) return;
167         
168         /* we take apart the used screens from non-active window */
169         for (win = wm->windows.first; win; win = win->next) {
170                 BLI_strncpy(win->screenname, win->screen->id.name, MAX_ID_NAME);
171                 if (win != wm->winactive) {
172                         BLI_remlink(&G.main->screen, win->screen);
173                         //BLI_addtail(screenbase, win->screen);
174                 }
175         }
176 #endif
177 }
178
179 /* match old WM with new, 4 cases:
180  * 1- no current wm, no read wm: make new default
181  * 2- no current wm, but read wm: that's OK, do nothing
182  * 3- current wm, but not in file: try match screen names
183  * 4- current wm, and wm in file: try match ghostwin
184  */
185
186 static void wm_window_match_do(bContext *C, ListBase *oldwmlist)
187 {
188         wmWindowManager *oldwm, *wm;
189         wmWindow *oldwin, *win;
190         
191         /* cases 1 and 2 */
192         if (oldwmlist->first == NULL) {
193                 if (G.main->wm.first) ;  /* nothing todo */
194                 else
195                         wm_add_default(C);
196         }
197         else {
198                 /* cases 3 and 4 */
199                 
200                 /* we've read file without wm..., keep current one entirely alive */
201                 if (G.main->wm.first == NULL) {
202                         bScreen *screen = NULL;
203
204                         /* when loading without UI, no matching needed */
205                         if (!(G.fileflags & G_FILE_NO_UI) && (screen = CTX_wm_screen(C))) {
206
207                                 /* match oldwm to new dbase, only old files */
208                                 for (wm = oldwmlist->first; wm; wm = wm->id.next) {
209                                         
210                                         for (win = wm->windows.first; win; win = win->next) {
211                                                 /* all windows get active screen from file */
212                                                 if (screen->winid == 0)
213                                                         win->screen = screen;
214                                                 else 
215                                                         win->screen = ED_screen_duplicate(win, screen);
216                                                 
217                                                 BLI_strncpy(win->screenname, win->screen->id.name + 2, sizeof(win->screenname));
218                                                 win->screen->winid = win->winid;
219                                         }
220                                 }
221                         }
222                         
223                         G.main->wm = *oldwmlist;
224                         
225                         /* screens were read from file! */
226                         ED_screens_initialize(G.main->wm.first);
227                 }
228                 else {
229                         /* what if old was 3, and loaded 1? */
230                         /* this code could move to setup_appdata */
231                         oldwm = oldwmlist->first;
232                         wm = G.main->wm.first;
233
234                         /* preserve key configurations in new wm, to preserve their keymaps */
235                         wm->keyconfigs = oldwm->keyconfigs;
236                         wm->addonconf = oldwm->addonconf;
237                         wm->defaultconf = oldwm->defaultconf;
238                         wm->userconf = oldwm->userconf;
239
240                         oldwm->keyconfigs.first = oldwm->keyconfigs.last = NULL;
241                         oldwm->addonconf = NULL;
242                         oldwm->defaultconf = NULL;
243                         oldwm->userconf = NULL;
244
245                         /* ensure making new keymaps and set space types */
246                         wm->initialized = 0;
247                         wm->winactive = NULL;
248                         
249                         /* only first wm in list has ghostwins */
250                         for (win = wm->windows.first; win; win = win->next) {
251                                 for (oldwin = oldwm->windows.first; oldwin; oldwin = oldwin->next) {
252                                         
253                                         if (oldwin->winid == win->winid) {
254                                                 win->ghostwin = oldwin->ghostwin;
255                                                 win->active = oldwin->active;
256                                                 if (win->active)
257                                                         wm->winactive = win;
258
259                                                 if (!G.background) /* file loading in background mode still calls this */
260                                                         GHOST_SetWindowUserData(win->ghostwin, win);    /* pointer back */
261
262                                                 oldwin->ghostwin = NULL;
263                                                 
264                                                 win->eventstate = oldwin->eventstate;
265                                                 oldwin->eventstate = NULL;
266                                                 
267                                                 /* ensure proper screen rescaling */
268                                                 win->sizex = oldwin->sizex;
269                                                 win->sizey = oldwin->sizey;
270                                                 win->posx = oldwin->posx;
271                                                 win->posy = oldwin->posy;
272                                         }
273                                 }
274                         }
275                         wm_close_and_free_all(C, oldwmlist);
276                 }
277         }
278 }
279
280 /* in case UserDef was read, we re-initialize all, and do versioning */
281 static void wm_init_userdef(bContext *C)
282 {
283         UI_init_userdef();
284         MEM_CacheLimiter_set_maximum(((size_t)U.memcachelimit) * 1024 * 1024);
285         sound_init(CTX_data_main(C));
286
287         /* needed so loading a file from the command line respects user-pref [#26156] */
288         if (U.flag & USER_FILENOUI) G.fileflags |= G_FILE_NO_UI;
289         else G.fileflags &= ~G_FILE_NO_UI;
290
291         /* set the python auto-execute setting from user prefs */
292         /* enabled by default, unless explicitly enabled in the command line which overrides */
293         if ((G.f & G_SCRIPT_OVERRIDE_PREF) == 0) {
294                 if ((U.flag & USER_SCRIPT_AUTOEXEC_DISABLE) == 0) G.f |=  G_SCRIPT_AUTOEXEC;
295                 else G.f &= ~G_SCRIPT_AUTOEXEC;
296         }
297
298         /* update tempdir from user preferences */
299         BLI_init_temporary_dir(U.tempdir);
300 }
301
302
303
304 /* return codes */
305 #define BKE_READ_EXOTIC_FAIL_PATH       -3 /* file format is not supported */
306 #define BKE_READ_EXOTIC_FAIL_FORMAT     -2 /* file format is not supported */
307 #define BKE_READ_EXOTIC_FAIL_OPEN       -1 /* Can't open the file */
308 #define BKE_READ_EXOTIC_OK_BLEND         0 /* .blend file */
309 #define BKE_READ_EXOTIC_OK_OTHER         1 /* other supported formats */
310
311
312 /* intended to check for non-blender formats but for now it only reads blends */
313 static int wm_read_exotic(Scene *UNUSED(scene), const char *name)
314 {
315         int len;
316         gzFile gzfile;
317         char header[7];
318         int retval;
319
320         /* make sure we're not trying to read a directory.... */
321
322         len = strlen(name);
323         if (ELEM(name[len - 1], '/', '\\')) {
324                 retval = BKE_READ_EXOTIC_FAIL_PATH;
325         }
326         else {
327                 gzfile = BLI_gzopen(name, "rb");
328                 if (gzfile == NULL) {
329                         retval = BKE_READ_EXOTIC_FAIL_OPEN;
330                 }
331                 else {
332                         len = gzread(gzfile, header, sizeof(header));
333                         gzclose(gzfile);
334                         if (len == sizeof(header) && strncmp(header, "BLENDER", 7) == 0) {
335                                 retval = BKE_READ_EXOTIC_OK_BLEND;
336                         }
337                         else {
338 #if 0           /* historic stuff - no longer used */
339                                 WM_cursor_wait(TRUE);
340
341                                 if (is_foo_format(name)) {
342                                         read_foo(name);
343                                         retval = BKE_READ_EXOTIC_OK_OTHER;
344                                 }
345                                 else
346 #endif
347                                 {
348                                         retval = BKE_READ_EXOTIC_FAIL_FORMAT;
349                                 }
350 #if 0
351                                 WM_cursor_wait(FALSE);
352 #endif
353                         }
354                 }
355         }
356
357         return retval;
358 }
359
360 void WM_read_file(bContext *C, const char *filepath, ReportList *reports)
361 {
362         int retval;
363
364         /* so we can get the error message */
365         errno = 0;
366
367         WM_cursor_wait(1);
368
369         BLI_callback_exec(CTX_data_main(C), NULL, BLI_CB_EVT_LOAD_PRE);
370
371         /* first try to append data from exotic file formats... */
372         /* it throws error box when file doesn't exist and returns -1 */
373         /* note; it should set some error message somewhere... (ton) */
374         retval = wm_read_exotic(CTX_data_scene(C), filepath);
375         
376         /* we didn't succeed, now try to read Blender file */
377         if (retval == BKE_READ_EXOTIC_OK_BLEND) {
378                 int G_f = G.f;
379                 ListBase wmbase;
380
381                 /* assume automated tasks with background, don't write recent file list */
382                 const int do_history = (G.background == FALSE) && (CTX_wm_manager(C)->op_undo_depth == 0);
383
384                 /* put aside screens to match with persistent windows later */
385                 /* also exit screens and editors */
386                 wm_window_match_init(C, &wmbase); 
387                 
388                 retval = BKE_read_file(C, filepath, reports);
389                 G.save_over = 1;
390
391                 /* this flag is initialized by the operator but overwritten on read.
392                  * need to re-enable it here else drivers + registered scripts wont work. */
393                 if (G.f != G_f) {
394                         const int flags_keep = (G_SCRIPT_AUTOEXEC | G_SCRIPT_OVERRIDE_PREF);
395                         G.f = (G.f & ~flags_keep) | (G_f & flags_keep);
396                 }
397
398                 /* match the read WM with current WM */
399                 wm_window_match_do(C, &wmbase);
400                 WM_check(C); /* opens window(s), checks keymaps */
401
402                 if (retval == BKE_READ_FILE_OK_USERPREFS) {
403                         /* in case a userdef is read from regular .blend */
404                         wm_init_userdef(C);
405                 }
406                 
407                 if (retval != BKE_READ_FILE_FAIL) {
408                         G.relbase_valid = 1;
409                         if (do_history) {
410                                 write_history();
411                         }
412                 }
413
414
415                 WM_event_add_notifier(C, NC_WM | ND_FILEREAD, NULL);
416 //              refresh_interface_font();
417
418                 CTX_wm_window_set(C, CTX_wm_manager(C)->windows.first);
419
420                 ED_editors_init(C);
421                 DAG_on_visible_update(CTX_data_main(C), TRUE);
422
423 #ifdef WITH_PYTHON
424                 /* run any texts that were loaded in and flagged as modules */
425                 BPY_driver_reset();
426                 BPY_app_handlers_reset(FALSE);
427                 BPY_modules_load_user(C);
428 #endif
429                 FRS_read_file(C);
430
431                 /* important to do before NULL'ing the context */
432                 BLI_callback_exec(CTX_data_main(C), NULL, BLI_CB_EVT_LOAD_POST);
433
434                 if (!G.background) {
435                         /* in background mode this makes it hard to load
436                          * a blend file and do anything since the screen
437                          * won't be set to a valid value again */
438                         CTX_wm_window_set(C, NULL); /* exits queues */
439                 }
440
441 #if 0
442                 /* gives popups on windows but not linux, bug in report API
443                  * but disable for now to stop users getting annoyed  */
444                 /* TODO, make this show in header info window */
445                 {
446                         Scene *sce;
447                         for (sce = G.main->scene.first; sce; sce = sce->id.next) {
448                                 if (sce->r.engine[0] &&
449                                     BLI_findstring(&R_engines, sce->r.engine, offsetof(RenderEngineType, idname)) == NULL)
450                                 {
451                                         BKE_reportf(reports, RPT_WARNING,
452                                                     "Engine not available: '%s' for scene: %s, "
453                                                     "an addon may need to be installed or enabled",
454                                                     sce->r.engine, sce->id.name + 2);
455                                 }
456                         }
457                 }
458 #endif
459
460                 BKE_reset_undo();
461                 BKE_write_undo(C, "original");  /* save current state */
462         }
463         else if (retval == BKE_READ_EXOTIC_OK_OTHER)
464                 BKE_write_undo(C, "Import file");
465         else if (retval == BKE_READ_EXOTIC_FAIL_OPEN) {
466                 BKE_reportf(reports, RPT_ERROR, IFACE_("Can't read file: \"%s\", %s."), filepath,
467                             errno ? strerror(errno) : IFACE_("Unable to open the file"));
468         }
469         else if (retval == BKE_READ_EXOTIC_FAIL_FORMAT) {
470                 BKE_reportf(reports, RPT_ERROR, IFACE_("File format is not supported in file: \"%s\"."), filepath);
471         }
472         else if (retval == BKE_READ_EXOTIC_FAIL_PATH) {
473                 BKE_reportf(reports, RPT_ERROR, IFACE_("File path invalid: \"%s\"."), filepath);
474         }
475         else {
476                 BKE_reportf(reports, RPT_ERROR, IFACE_("Unknown error loading: \"%s\"."), filepath);
477                 BLI_assert(!"invalid 'retval'");
478         }
479
480         WM_cursor_wait(0);
481
482 }
483
484
485 /* called on startup,  (context entirely filled with NULLs) */
486 /* or called for 'New File' */
487 /* op can be NULL */
488 int WM_read_homefile(bContext *C, ReportList *UNUSED(reports), short from_memory)
489 {
490         ListBase wmbase;
491         char tstr[FILE_MAX];
492         int success = 0;
493         
494         BKE_vfont_free_global_ttf(); /* still weird... what does it here? */
495                 
496         G.relbase_valid = 0;
497         if (!from_memory) {
498                 char *cfgdir = BLI_get_folder(BLENDER_USER_CONFIG, NULL);
499                 if (cfgdir) {
500                         BLI_make_file_string(G.main->name, tstr, cfgdir, BLENDER_STARTUP_FILE);
501                 }
502                 else {
503                         tstr[0] = '\0';
504                         from_memory = 1;
505                 }
506         }
507         
508         /* prevent loading no UI */
509         G.fileflags &= ~G_FILE_NO_UI;
510         
511         /* put aside screens to match with persistent windows later */
512         wm_window_match_init(C, &wmbase); 
513         
514         if (!from_memory && BLI_exists(tstr)) {
515                 success = (BKE_read_file(C, tstr, NULL) != BKE_READ_FILE_FAIL);
516                 
517                 if (U.themes.first == NULL) {
518                         printf("\nError: No valid "STRINGIFY (BLENDER_STARTUP_FILE)", fall back to built-in default.\n\n");
519                         success = 0;
520                 }
521         }
522         if (success == 0) {
523                 success = BKE_read_file_from_memory(C, datatoc_startup_blend, datatoc_startup_blend_size, NULL);
524                 if (wmbase.first == NULL) wm_clear_default_size(C);
525
526 #ifdef WITH_PYTHON_SECURITY /* not default */
527                 /* use alternative setting for security nuts
528                  * otherwise we'd need to patch the binary blob - startup.blend.c */
529                 U.flag |= USER_SCRIPT_AUTOEXEC_DISABLE;
530 #endif
531         }
532         
533         /* prevent buggy files that had G_FILE_RELATIVE_REMAP written out by mistake. Screws up autosaves otherwise
534          * can remove this eventually, only in a 2.53 and older, now its not written */
535         G.fileflags &= ~G_FILE_RELATIVE_REMAP;
536         
537         /* check userdef before open window, keymaps etc */
538         wm_init_userdef(C);
539         
540         /* match the read WM with current WM */
541         wm_window_match_do(C, &wmbase); 
542         WM_check(C); /* opens window(s), checks keymaps */
543
544         G.main->name[0] = '\0';
545
546         /* When loading factory settings, the reset solid OpenGL lights need to be applied. */
547         if (!G.background) GPU_default_lights();
548         
549         /* XXX */
550         G.save_over = 0;    // start with save preference untitled.blend
551         G.fileflags &= ~G_FILE_AUTOPLAY;    /*  disable autoplay in startup.blend... */
552
553 //      refresh_interface_font();
554         
555 //      undo_editmode_clear();
556         BKE_reset_undo();
557         BKE_write_undo(C, "original");  /* save current state */
558
559         ED_editors_init(C);
560         DAG_on_visible_update(CTX_data_main(C), TRUE);
561
562 #ifdef WITH_PYTHON
563         if (CTX_py_init_get(C)) {
564                 /* sync addons, these may have changed from the defaults */
565                 BPY_string_exec(C, "__import__('addon_utils').reset_all()");
566
567                 BPY_driver_reset();
568                 BPY_app_handlers_reset(FALSE);
569                 BPY_modules_load_user(C);
570         }
571 #endif
572
573         WM_event_add_notifier(C, NC_WM | ND_FILEREAD, NULL);
574
575         /* in background mode the scene will stay NULL */
576         if (!G.background) {
577                 CTX_wm_window_set(C, NULL); /* exits queues */
578         }
579
580         return TRUE;
581 }
582
583 int WM_read_homefile_exec(bContext *C, wmOperator *op)
584 {
585         int from_memory = strcmp(op->type->idname, "WM_OT_read_factory_settings") == 0;
586         return WM_read_homefile(C, op->reports, from_memory) ? OPERATOR_FINISHED : OPERATOR_CANCELLED;
587 }
588
589 void WM_read_history(void)
590 {
591         char name[FILE_MAX];
592         LinkNode *l, *lines;
593         struct RecentFile *recent;
594         char *line;
595         int num;
596         char *cfgdir = BLI_get_folder(BLENDER_USER_CONFIG, NULL);
597
598         if (!cfgdir) return;
599
600         BLI_make_file_string("/", name, cfgdir, BLENDER_HISTORY_FILE);
601
602         lines = BLI_file_read_as_lines(name);
603
604         G.recent_files.first = G.recent_files.last = NULL;
605
606         /* read list of recent opened files from recent-files.txt to memory */
607         for (l = lines, num = 0; l && (num < U.recent_files); l = l->next) {
608                 line = l->link;
609                 if (line[0] && BLI_exists(line)) {
610                         recent = (RecentFile *)MEM_mallocN(sizeof(RecentFile), "RecentFile");
611                         BLI_addtail(&(G.recent_files), recent);
612                         recent->filepath = BLI_strdup(line);
613                         num++;
614                 }
615         }
616         
617         BLI_file_free_lines(lines);
618
619 }
620
621 static void write_history(void)
622 {
623         struct RecentFile *recent, *next_recent;
624         char name[FILE_MAX];
625         char *user_config_dir;
626         FILE *fp;
627         int i;
628
629         /* will be NULL in background mode */
630         user_config_dir = BLI_get_folder_create(BLENDER_USER_CONFIG, NULL);
631         if (!user_config_dir)
632                 return;
633
634         BLI_make_file_string("/", name, user_config_dir, BLENDER_HISTORY_FILE);
635
636         recent = G.recent_files.first;
637         /* refresh recent-files.txt of recent opened files, when current file was changed */
638         if (!(recent) || (BLI_path_cmp(recent->filepath, G.main->name) != 0)) {
639                 fp = BLI_fopen(name, "w");
640                 if (fp) {
641                         /* add current file to the beginning of list */
642                         recent = (RecentFile *)MEM_mallocN(sizeof(RecentFile), "RecentFile");
643                         recent->filepath = BLI_strdup(G.main->name);
644                         BLI_addhead(&(G.recent_files), recent);
645                         /* write current file to recent-files.txt */
646                         fprintf(fp, "%s\n", recent->filepath);
647                         recent = recent->next;
648                         i = 1;
649                         /* write rest of recent opened files to recent-files.txt */
650                         while ((i < U.recent_files) && (recent)) {
651                                 /* this prevents to have duplicities in list */
652                                 if (BLI_path_cmp(recent->filepath, G.main->name) != 0) {
653                                         fprintf(fp, "%s\n", recent->filepath);
654                                         recent = recent->next;
655                                 }
656                                 else {
657                                         next_recent = recent->next;
658                                         MEM_freeN(recent->filepath);
659                                         BLI_freelinkN(&(G.recent_files), recent);
660                                         recent = next_recent;
661                                 }
662                                 i++;
663                         }
664                         fclose(fp);
665                 }
666
667                 /* also update most recent files on System */
668                 GHOST_addToSystemRecentFiles(G.main->name);
669         }
670 }
671
672 /* screen can be NULL */
673 static ImBuf *blend_file_thumb(Scene *scene, bScreen *screen, int **thumb_pt)
674 {
675         /* will be scaled down, but gives some nice oversampling */
676         ImBuf *ibuf;
677         int *thumb;
678         char err_out[256] = "unknown";
679
680         /* screen if no camera found */
681         ScrArea *sa = NULL;
682         ARegion *ar = NULL;
683         View3D *v3d = NULL;
684
685         *thumb_pt = NULL;
686
687         /* scene can be NULL if running a script at startup and calling the save operator */
688         if (G.background || scene == NULL)
689                 return NULL;
690
691         if ((scene->camera == NULL) && (screen != NULL)) {
692                 sa = BKE_screen_find_big_area(screen, SPACE_VIEW3D, 0);
693                 ar = BKE_area_find_region_type(sa, RGN_TYPE_WINDOW);
694                 if (ar) {
695                         v3d = sa->spacedata.first;
696                 }
697         }
698
699         if (scene->camera == NULL && v3d == NULL) {
700                 return NULL;
701         }
702
703         /* gets scaled to BLEN_THUMB_SIZE */
704         if (scene->camera) {
705                 ibuf = ED_view3d_draw_offscreen_imbuf_simple(scene, scene->camera,
706                                                              BLEN_THUMB_SIZE * 2, BLEN_THUMB_SIZE * 2,
707                                                              IB_rect, OB_SOLID, FALSE, err_out);
708         }
709         else {
710                 ibuf = ED_view3d_draw_offscreen_imbuf(scene, v3d, ar, BLEN_THUMB_SIZE * 2, BLEN_THUMB_SIZE * 2,
711                                                       IB_rect, FALSE, err_out);
712         }
713
714         if (ibuf) {             
715                 float aspect = (scene->r.xsch * scene->r.xasp) / (scene->r.ysch * scene->r.yasp);
716
717                 /* dirty oversampling */
718                 IMB_scaleImBuf(ibuf, BLEN_THUMB_SIZE, BLEN_THUMB_SIZE);
719
720                 /* add pretty overlay */
721                 IMB_overlayblend_thumb(ibuf->rect, ibuf->x, ibuf->y, aspect);
722                 
723                 /* first write into thumb buffer */
724                 thumb = MEM_mallocN(((2 + (BLEN_THUMB_SIZE * BLEN_THUMB_SIZE))) * sizeof(int), "write_file thumb");
725
726                 thumb[0] = BLEN_THUMB_SIZE;
727                 thumb[1] = BLEN_THUMB_SIZE;
728
729                 memcpy(thumb + 2, ibuf->rect, BLEN_THUMB_SIZE * BLEN_THUMB_SIZE * sizeof(int));
730         }
731         else {
732                 /* '*thumb_pt' needs to stay NULL to prevent a bad thumbnail from being handled */
733                 fprintf(stderr, "blend_file_thumb failed to create thumbnail: %s\n", err_out);
734                 thumb = NULL;
735         }
736         
737         /* must be freed by caller */
738         *thumb_pt = thumb;
739         
740         return ibuf;
741 }
742
743 /* easy access from gdb */
744 int write_crash_blend(void)
745 {
746         char path[FILE_MAX];
747         int fileflags = G.fileflags & ~(G_FILE_HISTORY); /* don't do file history on crash file */
748
749         BLI_strncpy(path, G.main->name, sizeof(path));
750         BLI_replace_extension(path, sizeof(path), "_crash.blend");
751         if (BLO_write_file(G.main, path, fileflags, NULL, NULL)) {
752                 printf("written: %s\n", path);
753                 return 1;
754         }
755         else {
756                 printf("failed: %s\n", path);
757                 return 0;
758         }
759 }
760
761 int WM_write_file(bContext *C, const char *target, int fileflags, ReportList *reports, int copy)
762 {
763         Library *li;
764         int len;
765         char filepath[FILE_MAX];
766
767         int *thumb = NULL;
768         ImBuf *ibuf_thumb = NULL;
769
770         len = strlen(target);
771         
772         if (len == 0) {
773                 BKE_report(reports, RPT_ERROR, "Path is empty, cannot save");
774                 return -1;
775         }
776
777         if (len >= FILE_MAX) {
778                 BKE_report(reports, RPT_ERROR, "Path too long, cannot save");
779                 return -1;
780         }
781  
782         BLI_strncpy(filepath, target, FILE_MAX);
783         BLI_replace_extension(filepath, FILE_MAX, ".blend");
784         /* don't use 'target' anymore */
785         
786         /* send the OnSave event */
787         for (li = G.main->library.first; li; li = li->id.next) {
788                 if (BLI_path_cmp(li->filepath, filepath) == 0) {
789                         BKE_reportf(reports, RPT_ERROR, "Can't overwrite used library '%.240s'", filepath);
790                         return -1;
791                 }
792         }
793
794         /* blend file thumbnail */
795         /* save before exit_editmode, otherwise derivedmeshes for shared data corrupt #27765) */
796         if (U.flag & USER_SAVE_PREVIEWS) {
797                 ibuf_thumb = blend_file_thumb(CTX_data_scene(C), CTX_wm_screen(C), &thumb);
798         }
799
800         BLI_callback_exec(G.main, NULL, BLI_CB_EVT_SAVE_PRE);
801
802         /* operator now handles overwrite checks */
803
804         if (G.fileflags & G_AUTOPACK) {
805                 packAll(G.main, reports);
806         }
807         
808         ED_object_exit_editmode(C, EM_DO_UNDO);
809         ED_sculpt_force_update(C);
810
811         /* don't forget not to return without! */
812         WM_cursor_wait(1);
813         
814         fileflags |= G_FILE_HISTORY; /* write file history */
815
816         if (BLO_write_file(CTX_data_main(C), filepath, fileflags, reports, thumb)) {
817                 if (!copy) {
818                         G.relbase_valid = 1;
819                         BLI_strncpy(G.main->name, filepath, sizeof(G.main->name));  /* is guaranteed current file */
820         
821                         G.save_over = 1; /* disable untitled.blend convention */
822                 }
823
824                 if (fileflags & G_FILE_COMPRESS) G.fileflags |= G_FILE_COMPRESS;
825                 else G.fileflags &= ~G_FILE_COMPRESS;
826                 
827                 if (fileflags & G_FILE_AUTOPLAY) G.fileflags |= G_FILE_AUTOPLAY;
828                 else G.fileflags &= ~G_FILE_AUTOPLAY;
829
830                 /* prevent background mode scripts from clobbering history */
831                 if (!G.background) {
832                         write_history();
833                 }
834
835                 BLI_callback_exec(G.main, NULL, BLI_CB_EVT_SAVE_POST);
836
837                 /* run this function after because the file cant be written before the blend is */
838                 if (ibuf_thumb) {
839                         IMB_thumb_delete(filepath, THB_FAIL); /* without this a failed thumb overrides */
840                         ibuf_thumb = IMB_thumb_create(filepath, THB_NORMAL, THB_SOURCE_BLEND, ibuf_thumb);
841                         IMB_freeImBuf(ibuf_thumb);
842                 }
843
844                 if (thumb) MEM_freeN(thumb);
845         }
846         else {
847                 if (ibuf_thumb) IMB_freeImBuf(ibuf_thumb);
848                 if (thumb) MEM_freeN(thumb);
849                 
850                 WM_cursor_wait(0);
851                 return -1;
852         }
853
854         WM_cursor_wait(0);
855         
856         return 0;
857 }
858
859 /* operator entry */
860 int WM_write_homefile(bContext *C, wmOperator *op)
861 {
862         wmWindowManager *wm = CTX_wm_manager(C);
863         wmWindow *win = CTX_wm_window(C);
864         char filepath[FILE_MAX];
865         int fileflags;
866
867         /* check current window and close it if temp */
868         if (win->screen->temp)
869                 wm_window_close(C, wm, win);
870         
871         /* update keymaps in user preferences */
872         WM_keyconfig_update(wm);
873         
874         BLI_make_file_string("/", filepath, BLI_get_folder_create(BLENDER_USER_CONFIG, NULL), BLENDER_STARTUP_FILE);
875         printf("trying to save homefile at %s ", filepath);
876         
877         /*  force save as regular blend file */
878         fileflags = G.fileflags & ~(G_FILE_COMPRESS | G_FILE_AUTOPLAY | G_FILE_LOCK | G_FILE_SIGN | G_FILE_HISTORY);
879
880         if (BLO_write_file(CTX_data_main(C), filepath, fileflags, op->reports, NULL) == 0) {
881                 printf("fail\n");
882                 return OPERATOR_CANCELLED;
883         }
884         
885         printf("ok\n");
886
887         G.save_over = 0;
888
889         return OPERATOR_FINISHED;
890 }
891
892 /************************ autosave ****************************/
893
894 void wm_autosave_location(char *filepath)
895 {
896         char pidstr[32];
897 #ifdef WIN32
898         char *savedir;
899 #endif
900
901         BLI_snprintf(pidstr, sizeof(pidstr), "%d.blend", abs(getpid()));
902
903 #ifdef WIN32
904         /* XXX Need to investigate how to handle default location of '/tmp/'
905          * This is a relative directory on Windows, and it may be
906          * found. Example:
907          * Blender installed on D:\ drive, D:\ drive has D:\tmp\
908          * Now, BLI_exists() will find '/tmp/' exists, but
909          * BLI_make_file_string will create string that has it most likely on C:\
910          * through get_default_root().
911          * If there is no C:\tmp autosave fails. */
912         if (!BLI_exists(BLI_temporary_dir())) {
913                 savedir = BLI_get_folder_create(BLENDER_USER_AUTOSAVE, NULL);
914                 BLI_make_file_string("/", filepath, savedir, pidstr);
915                 return;
916         }
917 #endif
918
919         BLI_make_file_string("/", filepath, BLI_temporary_dir(), pidstr);
920 }
921
922 void WM_autosave_init(wmWindowManager *wm)
923 {
924         wm_autosave_timer_ended(wm);
925
926         if (U.flag & USER_AUTOSAVE)
927                 wm->autosavetimer = WM_event_add_timer(wm, NULL, TIMERAUTOSAVE, U.savetime * 60.0);
928 }
929
930 void wm_autosave_timer(const bContext *C, wmWindowManager *wm, wmTimer *UNUSED(wt))
931 {
932         wmWindow *win;
933         wmEventHandler *handler;
934         char filepath[FILE_MAX];
935         int fileflags;
936
937         WM_event_remove_timer(wm, NULL, wm->autosavetimer);
938
939         /* if a modal operator is running, don't autosave, but try again in 10 seconds */
940         for (win = wm->windows.first; win; win = win->next) {
941                 for (handler = win->modalhandlers.first; handler; handler = handler->next) {
942                         if (handler->op) {
943                                 wm->autosavetimer = WM_event_add_timer(wm, NULL, TIMERAUTOSAVE, 10.0);
944                                 return;
945                         }
946                 }
947         }
948         
949         wm_autosave_location(filepath);
950
951         /*  force save as regular blend file */
952         fileflags = G.fileflags & ~(G_FILE_COMPRESS | G_FILE_AUTOPLAY | G_FILE_LOCK | G_FILE_SIGN | G_FILE_HISTORY);
953
954         /* no error reporting to console */
955         BLO_write_file(CTX_data_main(C), filepath, fileflags, NULL, NULL);
956
957         /* do timer after file write, just in case file write takes a long time */
958         wm->autosavetimer = WM_event_add_timer(wm, NULL, TIMERAUTOSAVE, U.savetime * 60.0);
959 }
960
961 void wm_autosave_timer_ended(wmWindowManager *wm)
962 {
963         if (wm->autosavetimer) {
964                 WM_event_remove_timer(wm, NULL, wm->autosavetimer);
965                 wm->autosavetimer = NULL;
966         }
967 }
968
969 void wm_autosave_delete(void)
970 {
971         char filename[FILE_MAX];
972         
973         wm_autosave_location(filename);
974
975         if (BLI_exists(filename)) {
976                 char str[FILE_MAX];
977                 BLI_make_file_string("/", str, BLI_temporary_dir(), "quit.blend");
978
979                 /* if global undo; remove tempsave, otherwise rename */
980                 if (U.uiflag & USER_GLOBALUNDO) BLI_delete(filename, 0, 0);
981                 else BLI_rename(filename, str);
982         }
983 }
984
985 void wm_autosave_read(bContext *C, ReportList *reports)
986 {
987         char filename[FILE_MAX];
988
989         wm_autosave_location(filename);
990         WM_read_file(C, filename, reports);
991 }
992