Fix for [#22741] Material preview doesn't update when "undo" is used to revert a...
[blender.git] / source / blender / editors / transform / transform_generics.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  * The Original Code is: all of this file.
24  *
25  * Contributor(s): none yet.
26  *
27  * ***** END GPL LICENSE BLOCK *****
28  */
29
30 #include <string.h>
31 #include <math.h>
32
33 #include "MEM_guardedalloc.h"
34
35 #include "BLO_sys_types.h" // for intptr_t support
36
37 #include "DNA_anim_types.h"
38 #include "DNA_armature_types.h"
39 #include "DNA_lattice_types.h"
40 #include "DNA_screen_types.h"
41 #include "DNA_space_types.h"
42 #include "DNA_scene_types.h"
43 #include "DNA_object_types.h"
44 #include "DNA_meshdata_types.h"
45 #include "DNA_view3d_types.h"
46 #include "DNA_modifier_types.h"
47
48 #include "RNA_access.h"
49
50 //#include "BIF_screen.h"
51 //#include "BIF_mywindow.h"
52 #include "BIF_gl.h"
53 #include "BIF_glutil.h"
54 //#include "BIF_editmesh.h"
55 //#include "BIF_editsima.h"
56 //#include "BIF_editparticle.h"
57 //#include "BIF_meshtools.h"
58
59 #include "BKE_animsys.h"
60 #include "BKE_action.h"
61 #include "BKE_armature.h"
62 #include "BKE_curve.h"
63 #include "BKE_depsgraph.h"
64 #include "BKE_displist.h"
65 #include "BKE_fcurve.h"
66 #include "BKE_lattice.h"
67 #include "BKE_mesh.h"
68 #include "BKE_nla.h"
69 #include "BKE_context.h"
70
71 #include "ED_anim_api.h"
72 #include "ED_armature.h"
73 #include "ED_image.h"
74 #include "ED_keyframing.h"
75 #include "ED_markers.h"
76 #include "ED_mesh.h"
77 #include "ED_particle.h"
78 #include "ED_screen_types.h"
79 #include "ED_space_api.h"
80 #include "ED_uvedit.h"
81 #include "ED_view3d.h"
82 #include "ED_curve.h" /* for ED_curve_editnurbs */
83
84 //#include "BDR_unwrapper.h"
85
86 #include "BLI_math.h"
87 #include "BLI_blenlib.h"
88 #include "BLI_editVert.h"
89 #include "BLI_rand.h"
90
91
92 #include "WM_types.h"
93 #include "WM_api.h"
94
95 #include "UI_resources.h"
96
97 //#include "blendef.h"
98 //
99 //#include "mydevice.h"
100
101 #include "transform.h"
102
103 extern ListBase editelems;
104
105 /* ************************** Functions *************************** */
106
107 void getViewVector(TransInfo *t, float coord[3], float vec[3])
108 {
109         if (t->persp != RV3D_ORTHO)
110         {
111                 float p1[4], p2[4];
112                 
113                 VECCOPY(p1, coord);
114                 p1[3] = 1.0f;
115                 VECCOPY(p2, p1);
116                 p2[3] = 1.0f;
117                 mul_m4_v4(t->viewmat, p2);
118                 
119                 p2[0] = 2.0f * p2[0];
120                 p2[1] = 2.0f * p2[1];
121                 p2[2] = 2.0f * p2[2];
122                 
123                 mul_m4_v4(t->viewinv, p2);
124                 
125                 sub_v3_v3v3(vec, p1, p2);
126         }
127         else {
128                 VECCOPY(vec, t->viewinv[2]);
129         }
130         normalize_v3(vec);
131 }
132
133 /* ************************** GENERICS **************************** */
134
135 static void clipMirrorModifier(TransInfo *t, Object *ob)
136 {
137         ModifierData *md= ob->modifiers.first;
138         float tolerance[3] = {0.0f, 0.0f, 0.0f};
139         int axis = 0;
140         
141         for (; md; md=md->next) {
142                 if (md->type==eModifierType_Mirror) {
143                         MirrorModifierData *mmd = (MirrorModifierData*) md;
144                         
145                         if(mmd->flag & MOD_MIR_CLIPPING) {
146                                 axis = 0;
147                                 if(mmd->flag & MOD_MIR_AXIS_X) {
148                                         axis |= 1;
149                                         tolerance[0] = mmd->tolerance;
150                                 }
151                                 if(mmd->flag & MOD_MIR_AXIS_Y) {
152                                         axis |= 2;
153                                         tolerance[1] = mmd->tolerance;
154                                 }
155                                 if(mmd->flag & MOD_MIR_AXIS_Z) {
156                                         axis |= 4;
157                                         tolerance[2] = mmd->tolerance;
158                                 }
159                                 if (axis) {
160                                         float mtx[4][4], imtx[4][4];
161                                         int i;
162                                         TransData *td = t->data;
163                                         
164                                         if (mmd->mirror_ob) {
165                                                 float obinv[4][4];
166                                                 
167                                                 invert_m4_m4(obinv, mmd->mirror_ob->obmat);
168                                                 mul_m4_m4m4(mtx, ob->obmat, obinv);
169                                                 invert_m4_m4(imtx, mtx);
170                                         }
171                                         
172                                         for(i = 0 ; i < t->total; i++, td++) {
173                                                 int clip;
174                                                 float loc[3], iloc[3];
175                                                 
176                                                 if (td->flag & TD_NOACTION)
177                                                         break;
178                                                 if (td->loc==NULL)
179                                                         break;
180                                                 
181                                                 if (td->flag & TD_SKIP)
182                                                         continue;
183                                                 
184                                                 copy_v3_v3(loc,  td->loc);
185                                                 copy_v3_v3(iloc, td->iloc);
186                                                 
187                                                 if (mmd->mirror_ob) {
188                                                         mul_m4_v3(mtx, loc);
189                                                         mul_m4_v3(mtx, iloc);
190                                                 }
191                                                 
192                                                 clip = 0;
193                                                 if(axis & 1) {
194                                                         if(fabs(iloc[0])<=tolerance[0] ||
195                                                            loc[0]*iloc[0]<0.0f) {
196                                                                 loc[0]= 0.0f;
197                                                                 clip = 1;
198                                                         }
199                                                 }
200                                                 
201                                                 if(axis & 2) {
202                                                         if(fabs(iloc[1])<=tolerance[1] ||
203                                                            loc[1]*iloc[1]<0.0f) {
204                                                                 loc[1]= 0.0f;
205                                                                 clip = 1;
206                                                         }
207                                                 }
208                                                 if(axis & 4) {
209                                                         if(fabs(iloc[2])<=tolerance[2] ||
210                                                            loc[2]*iloc[2]<0.0f) {
211                                                                 loc[2]= 0.0f;
212                                                                 clip = 1;
213                                                         }
214                                                 }
215                                                 if (clip) {
216                                                         if (mmd->mirror_ob) {
217                                                                 mul_m4_v3(imtx, loc);
218                                                         }
219                                                         copy_v3_v3(td->loc, loc);
220                                                 }
221                                         }
222                                 }
223                                 
224                         }
225                 }
226         }
227 }
228
229 /* assumes obedit set to mesh object */
230 static void editmesh_apply_to_mirror(TransInfo *t)
231 {
232         TransData *td = t->data;
233         EditVert *eve;
234         int i;
235         
236         for(i = 0 ; i < t->total; i++, td++) {
237                 if (td->flag & TD_NOACTION)
238                         break;
239                 if (td->loc==NULL)
240                         break;
241                 if (td->flag & TD_SKIP)
242                         continue;
243                 
244                 eve = td->extra;
245                 if (eve) {
246                         eve->co[0]= -td->loc[0];
247                         eve->co[1]= td->loc[1];
248                         eve->co[2]= td->loc[2];
249                 }
250                 
251                 if (td->flag & TD_MIRROR_EDGE)
252                 {
253                         td->loc[0] = 0;
254                 }
255         }
256 }
257
258 /* for the realtime animation recording feature, handle overlapping data */
259 static void animrecord_check_state (Scene *scene, ID *id, wmTimer *animtimer)
260 {
261         ScreenAnimData *sad= (animtimer) ? animtimer->customdata : NULL;
262         
263         /* sanity checks */
264         if ELEM3(NULL, scene, id, sad)
265                 return;
266         
267         /* check if we need a new strip if:
268          *      - if animtimer is running 
269          *      - we're not only keying for available channels
270          *      - the option to add new actions for each round is not enabled
271          */
272         if (IS_AUTOKEY_FLAG(INSERTAVAIL)==0 && (scene->toolsettings->autokey_flag & ANIMRECORD_FLAG_WITHNLA)) {
273                 /* if playback has just looped around, we need to add a new NLA track+strip to allow a clean pass to occur */
274                 if ((sad) && (sad->flag & ANIMPLAY_FLAG_JUMPED)) {
275                         AnimData *adt= BKE_animdata_from_id(id);
276                         
277                         /* perform push-down manually with some differences 
278                          * NOTE: BKE_nla_action_pushdown() sync warning...
279                          */
280                         if ((adt->action) && !(adt->flag & ADT_NLA_EDIT_ON)) {
281                                 float astart, aend;
282                                 
283                                 /* only push down if action is more than 1-2 frames long */
284                                 calc_action_range(adt->action, &astart, &aend, 1);
285                                 if (aend > astart+2.0f) {
286                                         NlaStrip *strip= add_nlastrip_to_stack(adt, adt->action);
287                                         
288                                         /* clear reference to action now that we've pushed it onto the stack */
289                                         adt->action->id.us--;
290                                         adt->action= NULL;
291                                         
292                                         /* adjust blending + extend so that they will behave correctly */
293                                         strip->extendmode= NLASTRIP_EXTEND_NOTHING;
294                                         strip->flag &= ~(NLASTRIP_FLAG_AUTO_BLENDS|NLASTRIP_FLAG_SELECT|NLASTRIP_FLAG_ACTIVE);
295                                         
296                                         /* also, adjust the AnimData's action extend mode to be on 
297                                          * 'nothing' so that previous result still play 
298                                          */
299                                         adt->act_extendmode= NLASTRIP_EXTEND_NOTHING;
300                                 }
301                         }
302                 }
303         }
304 }
305
306 static int fcu_test_selected(FCurve *fcu)
307 {
308         BezTriple *bezt= fcu->bezt;
309         int i;
310
311         if (bezt==NULL) /* ignore baked */
312                 return 0;
313
314         for (i=0; i < fcu->totvert; i++, bezt++) {
315                 if (BEZSELECTED(bezt)) return 1;
316         }
317
318         return 0;
319 }
320
321 /* called for updating while transform acts, once per redraw */
322 void recalcData(TransInfo *t)
323 {
324         Scene *scene = t->scene;
325         Base *base = scene->basact;
326
327         if (t->spacetype==SPACE_NODE) {
328                 flushTransNodes(t);
329         }
330         else if (t->spacetype==SPACE_SEQ) {
331                 flushTransSeq(t);
332         }
333         else if (t->spacetype == SPACE_ACTION) {
334                 Scene *scene= t->scene;
335                 SpaceAction *saction= (SpaceAction *)t->sa->spacedata.first;
336                 
337                 bAnimContext ac;
338                 ListBase anim_data = {NULL, NULL};
339                 bAnimListElem *ale;
340                 int filter;
341                 
342                 /* initialise relevant anim-context 'context' data from TransInfo data */
343                         /* NOTE: sync this with the code in ANIM_animdata_get_context() */
344                 memset(&ac, 0, sizeof(bAnimContext));
345                 
346                 ac.scene= t->scene;
347                 ac.obact= OBACT;
348                 ac.sa= t->sa;
349                 ac.ar= t->ar;
350                 ac.spacetype= (t->sa)? t->sa->spacetype : 0;
351                 ac.regiontype= (t->ar)? t->ar->regiontype : 0;
352                 
353                 ANIM_animdata_context_getdata(&ac);
354                 
355                 /* get animdata blocks visible in editor, assuming that these will be the ones where things changed */
356                 filter= (ANIMFILTER_VISIBLE | ANIMFILTER_ANIMDATA);
357                 ANIM_animdata_filter(&ac, &anim_data, filter, ac.data, ac.datatype);
358                 
359                 /* just tag these animdata-blocks to recalc, assuming that some data there changed 
360                  * BUT only do this if realtime updates are enabled
361                  */
362                 if ((saction->flag & SACTION_NOREALTIMEUPDATES) == 0) {
363                         for (ale= anim_data.first; ale; ale= ale->next) {
364                                 /* set refresh tags for objects using this animation */
365                                 ANIM_list_elem_update(t->scene, ale);
366                         }
367                 }
368                 
369                 /* now free temp channels */
370                 BLI_freelistN(&anim_data);
371         }
372         else if (t->spacetype == SPACE_IPO) {
373                 Scene *scene;
374                 SpaceIpo *sipo= (SpaceIpo *)t->sa->spacedata.first;
375                 
376                 ListBase anim_data = {NULL, NULL};
377                 bAnimContext ac;
378                 int filter;
379                 
380                 bAnimListElem *ale;
381                 int dosort = 0;
382                 
383                 
384                 /* initialise relevant anim-context 'context' data from TransInfo data */
385                         /* NOTE: sync this with the code in ANIM_animdata_get_context() */
386                 memset(&ac, 0, sizeof(bAnimContext));
387                 
388                 scene= ac.scene= t->scene;
389                 ac.obact= OBACT;
390                 ac.sa= t->sa;
391                 ac.ar= t->ar;
392                 ac.spacetype= (t->sa)? t->sa->spacetype : 0;
393                 ac.regiontype= (t->ar)? t->ar->regiontype : 0;
394                 
395                 ANIM_animdata_context_getdata(&ac);
396                 
397                 /* do the flush first */
398                 flushTransGraphData(t);
399                 
400                 /* get curves to check if a re-sort is needed */
401                 filter= (ANIMFILTER_VISIBLE | ANIMFILTER_FOREDIT | ANIMFILTER_CURVESONLY | ANIMFILTER_CURVEVISIBLE);
402                 ANIM_animdata_filter(&ac, &anim_data, filter, ac.data, ac.datatype);
403                 
404                 /* now test if there is a need to re-sort */
405                 for (ale= anim_data.first; ale; ale= ale->next) {
406                         FCurve *fcu= (FCurve *)ale->key_data;
407                         
408                         /* ignore unselected fcurves */
409                         if (!fcu_test_selected(fcu))
410                                 continue;
411                         
412                         // fixme: only do this for selected verts...
413                         ANIM_unit_mapping_apply_fcurve(ac.scene, ale->id, ale->key_data, ANIM_UNITCONV_ONLYSEL|ANIM_UNITCONV_SELVERTS|ANIM_UNITCONV_RESTORE);
414                         
415                         
416                         /* watch it: if the time is wrong: do not correct handles yet */
417                         if (test_time_fcurve(fcu))
418                                 dosort++;
419                         else
420                                 calchandles_fcurve(fcu);
421                         
422                         /* set refresh tags for objects using this animation,
423                          * BUT only if realtime updates are enabled  
424                          */
425                         if ((sipo->flag & SIPO_NOREALTIMEUPDATES) == 0)
426                                 ANIM_list_elem_update(t->scene, ale);
427                 }
428                 
429                 /* do resort and other updates? */
430                 if (dosort) remake_graph_transdata(t, &anim_data);
431                 
432                 /* now free temp channels */
433                 BLI_freelistN(&anim_data);
434         }
435         else if (t->spacetype == SPACE_NLA) {
436                 TransDataNla *tdn= (TransDataNla *)t->customData;
437                 SpaceNla *snla= (SpaceNla *)t->sa->spacedata.first;
438                 Scene *scene= t->scene;
439                 double secf= FPS;
440                 int i;
441                 
442                 /* for each strip we've got, perform some additional validation of the values that got set before
443                  * using RNA to set the value (which does some special operations when setting these values to make
444                  * sure that everything works ok)
445                  */
446                 for (i = 0; i < t->total; i++, tdn++) {
447                         NlaStrip *strip= tdn->strip;
448                         PointerRNA strip_ptr;
449                         short pExceeded, nExceeded, iter;
450                         int delta_y1, delta_y2;
451                         
452                         /* if this tdn has no handles, that means it is just a dummy that should be skipped */
453                         if (tdn->handle == 0)
454                                 continue;
455                         
456                         /* set refresh tags for objects using this animation,
457                          * BUT only if realtime updates are enabled  
458                          */
459                         if ((snla->flag & SNLA_NOREALTIMEUPDATES) == 0)
460                                 ANIM_id_update(t->scene, tdn->id);
461                         
462                         /* if cancelling transform, just write the values without validating, then move on */
463                         if (t->state == TRANS_CANCEL) {
464                                 /* clear the values by directly overwriting the originals, but also need to restore
465                                  * endpoints of neighboring transition-strips
466                                  */
467                                 
468                                 /* start */
469                                 strip->start= tdn->h1[0];
470                                 
471                                 if ((strip->prev) && (strip->prev->type == NLASTRIP_TYPE_TRANSITION))
472                                         strip->prev->end= tdn->h1[0];
473                                 
474                                 /* end */
475                                 strip->end= tdn->h2[0];
476                                 
477                                 if ((strip->next) && (strip->next->type == NLASTRIP_TYPE_TRANSITION))
478                                         strip->next->start= tdn->h2[0];
479                                 
480                                 /* flush transforms to child strips (since this should be a meta) */
481                                 BKE_nlameta_flush_transforms(strip);
482                                 
483                                 /* restore to original track (if needed) */
484                                 if (tdn->oldTrack != tdn->nlt) {
485                                         /* just append to end of list for now, since strips get sorted in special_aftertrans_update() */
486                                         BLI_remlink(&tdn->nlt->strips, strip);
487                                         BLI_addtail(&tdn->oldTrack->strips, strip);
488                                 }
489                                 
490                                 continue;
491                         }
492                         
493                         /* firstly, check if the proposed transform locations would overlap with any neighbouring strips
494                          * (barring transitions) which are absolute barriers since they are not being moved
495                          *
496                          * this is done as a iterative procedure (done 5 times max for now)
497                          */
498                         for (iter=0; iter < 5; iter++) {
499                                 pExceeded= ((strip->prev) && (strip->prev->type != NLASTRIP_TYPE_TRANSITION) && (tdn->h1[0] < strip->prev->end));
500                                 nExceeded= ((strip->next) && (strip->next->type != NLASTRIP_TYPE_TRANSITION) && (tdn->h2[0] > strip->next->start));
501                                 
502                                 if ((pExceeded && nExceeded) || (iter == 4) ) {
503                                         /* both endpoints exceeded (or iteration ping-pong'd meaning that we need a compromise)
504                                          *      - simply crop strip to fit within the bounds of the strips bounding it
505                                          *      - if there were no neighbours, clear the transforms (make it default to the strip's current values)
506                                          */
507                                         if (strip->prev && strip->next) {
508                                                 tdn->h1[0]= strip->prev->end;
509                                                 tdn->h2[0]= strip->next->start;
510                                         }
511                                         else {
512                                                 tdn->h1[0]= strip->start;
513                                                 tdn->h2[0]= strip->end;
514                                         }
515                                 }
516                                 else if (nExceeded) {
517                                         /* move backwards */
518                                         float offset= tdn->h2[0] - strip->next->start;
519                                         
520                                         tdn->h1[0] -= offset;
521                                         tdn->h2[0] -= offset;
522                                 }
523                                 else if (pExceeded) {
524                                         /* more forwards */
525                                         float offset= strip->prev->end - tdn->h1[0];
526                                         
527                                         tdn->h1[0] += offset;
528                                         tdn->h2[0] += offset;
529                                 }
530                                 else /* all is fine and well */
531                                         break;
532                         }
533                         
534                         /* handle auto-snapping */
535                         switch (snla->autosnap) {
536                                 case SACTSNAP_FRAME: /* snap to nearest frame/time  */
537                                         if (snla->flag & SNLA_DRAWTIME) {
538                                                 tdn->h1[0]= (float)( floor((tdn->h1[0]/secf) + 0.5f) * secf );
539                                                 tdn->h2[0]= (float)( floor((tdn->h2[0]/secf) + 0.5f) * secf );
540                                         }
541                                         else {
542                                                 tdn->h1[0]= (float)( floor(tdn->h1[0]+0.5f) );
543                                                 tdn->h2[0]= (float)( floor(tdn->h2[0]+0.5f) );
544                                         }
545                                         break;
546                                 
547                                 case SACTSNAP_MARKER: /* snap to nearest marker */
548                                         tdn->h1[0]= (float)ED_markers_find_nearest_marker_time(&t->scene->markers, tdn->h1[0]);
549                                         tdn->h2[0]= (float)ED_markers_find_nearest_marker_time(&t->scene->markers, tdn->h2[0]);
550                                         break;
551                         }
552                         
553                         /* use RNA to write the values... */
554                         // TODO: do we need to write in 2 passes to make sure that no truncation goes on?
555                         RNA_pointer_create(NULL, &RNA_NlaStrip, strip, &strip_ptr);
556                         
557                         RNA_float_set(&strip_ptr, "frame_start", tdn->h1[0]);
558                         RNA_float_set(&strip_ptr, "frame_end", tdn->h2[0]);
559                         
560                         /* flush transforms to child strips (since this should be a meta) */
561                         BKE_nlameta_flush_transforms(strip);
562                         
563                         
564                         /* now, check if we need to try and move track
565                          *      - we need to calculate both, as only one may have been altered by transform if only 1 handle moved
566                          */
567                         delta_y1= ((int)tdn->h1[1] / NLACHANNEL_STEP - tdn->trackIndex);
568                         delta_y2= ((int)tdn->h2[1] / NLACHANNEL_STEP - tdn->trackIndex);
569                         
570                         if (delta_y1 || delta_y2) {
571                                 NlaTrack *track;
572                                 int delta = (delta_y2) ? delta_y2 : delta_y1;
573                                 int n;
574                                 
575                                 /* move in the requested direction, checking at each layer if there's space for strip to pass through,
576                                  * stopping on the last track available or that we're able to fit in
577                                  */
578                                 if (delta > 0) {
579                                         for (track=tdn->nlt->next, n=0; (track) && (n < delta); track=track->next, n++) {
580                                                 /* check if space in this track for the strip */
581                                                 if (BKE_nlatrack_has_space(track, strip->start, strip->end)) {
582                                                         /* move strip to this track */
583                                                         BLI_remlink(&tdn->nlt->strips, strip);
584                                                         BKE_nlatrack_add_strip(track, strip);
585                                                         
586                                                         tdn->nlt= track;
587                                                         tdn->trackIndex += (n + 1); /* + 1, since n==0 would mean that we didn't change track */
588                                                 }
589                                                 else /* can't move any further */
590                                                         break;
591                                         }
592                                 }
593                                 else {
594                                         /* make delta 'positive' before using it, since we now know to go backwards */
595                                         delta= -delta;
596                                         
597                                         for (track=tdn->nlt->prev, n=0; (track) && (n < delta); track=track->prev, n++) {
598                                                 /* check if space in this track for the strip */
599                                                 if (BKE_nlatrack_has_space(track, strip->start, strip->end)) {
600                                                         /* move strip to this track */
601                                                         BLI_remlink(&tdn->nlt->strips, strip);
602                                                         BKE_nlatrack_add_strip(track, strip);
603                                                         
604                                                         tdn->nlt= track;
605                                                         tdn->trackIndex -= (n - 1); /* - 1, since n==0 would mean that we didn't change track */
606                                                 }
607                                                 else /* can't move any further */
608                                                         break;
609                                         }
610                                 }
611                         }
612                 }
613         }
614         else if (t->spacetype == SPACE_IMAGE) {
615                 if (t->obedit && t->obedit->type == OB_MESH) {
616                         SpaceImage *sima= t->sa->spacedata.first;
617                         
618                         flushTransUVs(t);
619                         if(sima->flag & SI_LIVE_UNWRAP)
620                                 ED_uvedit_live_unwrap_re_solve();
621                         
622                         DAG_id_flush_update(t->obedit->data, OB_RECALC_DATA);
623                 }
624         }
625         else if (t->spacetype == SPACE_VIEW3D) {
626                 
627                 /* project */
628                 if(t->state != TRANS_CANCEL) {
629                         applyProject(t);
630                 }
631                 
632                 if (t->obedit) {
633                         if ELEM(t->obedit->type, OB_CURVE, OB_SURF) {
634                                 Curve *cu= t->obedit->data;
635                                 ListBase *nurbs= ED_curve_editnurbs(cu);
636                                 Nurb *nu= nurbs->first;
637
638                                 if(t->state != TRANS_CANCEL) {
639                                         clipMirrorModifier(t, t->obedit);
640                                 }
641
642                                 DAG_id_flush_update(t->obedit->data, OB_RECALC_DATA);  /* sets recalc flags */
643
644                                 if (t->state == TRANS_CANCEL) {
645                                         while(nu) {
646                                                 calchandlesNurb(nu); /* Cant do testhandlesNurb here, it messes up the h1 and h2 flags */
647                                                 nu= nu->next;
648                                         }
649                                 } else {
650                                         /* Normal updating */
651                                         while(nu) {
652                                                 test2DNurb(nu);
653                                                 calchandlesNurb(nu);
654                                                 nu= nu->next;
655                                         }
656                                 }
657                         }
658                         else if(t->obedit->type==OB_LATTICE) {
659                                 Lattice *la= t->obedit->data;
660                                 DAG_id_flush_update(t->obedit->data, OB_RECALC_DATA);  /* sets recalc flags */
661         
662                                 if(la->editlatt->latt->flag & LT_OUTSIDE) outside_lattice(la->editlatt->latt);
663                         }
664                         else if (t->obedit->type == OB_MESH) {
665                                 EditMesh *em = ((Mesh*)t->obedit->data)->edit_mesh;
666                                 /* mirror modifier clipping? */
667                                 if(t->state != TRANS_CANCEL) {
668                                         clipMirrorModifier(t, t->obedit);
669                                 }
670                                 if((t->options & CTX_NO_MIRROR) == 0 && (t->flag & T_MIRROR))
671                                         editmesh_apply_to_mirror(t);
672                                         
673                                 DAG_id_flush_update(t->obedit->data, OB_RECALC_DATA);  /* sets recalc flags */
674                                 
675                                 recalc_editnormals(em);
676                         }
677                         else if(t->obedit->type==OB_ARMATURE) { /* no recalc flag, does pose */
678                                 bArmature *arm= t->obedit->data;
679                                 ListBase *edbo = arm->edbo;
680                                 EditBone *ebo;
681                                 TransData *td = t->data;
682                                 int i;
683                                 
684                                 /* Ensure all bones are correctly adjusted */
685                                 for (ebo = edbo->first; ebo; ebo = ebo->next){
686                                         
687                                         if ((ebo->flag & BONE_CONNECTED) && ebo->parent){
688                                                 /* If this bone has a parent tip that has been moved */
689                                                 if (ebo->parent->flag & BONE_TIPSEL){
690                                                         VECCOPY (ebo->head, ebo->parent->tail);
691                                                         if(t->mode==TFM_BONE_ENVELOPE) ebo->rad_head= ebo->parent->rad_tail;
692                                                 }
693                                                 /* If this bone has a parent tip that has NOT been moved */
694                                                 else{
695                                                         VECCOPY (ebo->parent->tail, ebo->head);
696                                                         if(t->mode==TFM_BONE_ENVELOPE) ebo->parent->rad_tail= ebo->rad_head;
697                                                 }
698                                         }
699                                         
700                                         /* on extrude bones, oldlength==0.0f, so we scale radius of points */
701                                         ebo->length= len_v3v3(ebo->head, ebo->tail);
702                                         if(ebo->oldlength==0.0f) {
703                                                 ebo->rad_head= 0.25f*ebo->length;
704                                                 ebo->rad_tail= 0.10f*ebo->length;
705                                                 ebo->dist= 0.25f*ebo->length;
706                                                 if(ebo->parent) {
707                                                         if(ebo->rad_head > ebo->parent->rad_tail)
708                                                                 ebo->rad_head= ebo->parent->rad_tail;
709                                                 }
710                                         }
711                                         else if(t->mode!=TFM_BONE_ENVELOPE) {
712                                                 /* if bones change length, lets do that for the deform distance as well */
713                                                 ebo->dist*= ebo->length/ebo->oldlength;
714                                                 ebo->rad_head*= ebo->length/ebo->oldlength;
715                                                 ebo->rad_tail*= ebo->length/ebo->oldlength;
716                                                 ebo->oldlength= ebo->length;
717                                         }
718                                 }
719                                 
720                                 
721                                 if (t->mode != TFM_BONE_ROLL)
722                                 {
723                                         /* fix roll */
724                                         for(i = 0; i < t->total; i++, td++)
725                                         {
726                                                 if (td->extra)
727                                                 {
728                                                         float vec[3], up_axis[3];
729                                                         float qrot[4];
730                                                         
731                                                         ebo = td->extra;
732                                                         VECCOPY(up_axis, td->axismtx[2]);
733                                                         
734                                                         if (t->mode != TFM_ROTATION)
735                                                         {
736                                                                 sub_v3_v3v3(vec, ebo->tail, ebo->head);
737                                                                 normalize_v3(vec);
738                                                                 rotation_between_vecs_to_quat(qrot, td->axismtx[1], vec);
739                                                                 mul_qt_v3(qrot, up_axis);
740                                                         }
741                                                         else
742                                                         {
743                                                                 mul_m3_v3(t->mat, up_axis);
744                                                         }
745                                                         
746                                                         ebo->roll = ED_rollBoneToVector(ebo, up_axis);
747                                                 }
748                                         }
749                                 }
750                                 
751                                 if(arm->flag & ARM_MIRROR_EDIT)
752                                         transform_armature_mirror_update(t->obedit);
753                                 
754                         }
755                         else
756                                 DAG_id_flush_update(t->obedit->data, OB_RECALC_DATA);  /* sets recalc flags */
757                 }
758                 else if( (t->flag & T_POSE) && t->poseobj) {
759                         Object *ob= t->poseobj;
760                         bArmature *arm= ob->data;
761                         
762                         /* if animtimer is running, and the object already has animation data,
763                          * check if the auto-record feature means that we should record 'samples'
764                          * (i.e. uneditable animation values)
765                          */
766                         // TODO: autokeyframe calls need some setting to specify to add samples (FPoints) instead of keyframes?
767                         if ((t->animtimer) && IS_AUTOKEY_ON(t->scene)) {
768                                 int targetless_ik= (t->flag & T_AUTOIK); // XXX this currently doesn't work, since flags aren't set yet!
769                                 
770                                 animrecord_check_state(t->scene, &ob->id, t->animtimer);
771                                 autokeyframe_pose_cb_func(NULL, t->scene, (View3D *)t->view, ob, t->mode, targetless_ik);
772                         }
773                         
774                         /* old optimize trick... this enforces to bypass the depgraph */
775                         if (!(arm->flag & ARM_DELAYDEFORM)) {
776                                 DAG_id_flush_update(&ob->id, OB_RECALC_DATA);  /* sets recalc flags */
777                         }
778                         else
779                                 where_is_pose(scene, ob);
780                 }
781                 else if(base && (base->object->mode & OB_MODE_PARTICLE_EDIT) && PE_get_current(scene, base->object)) {
782                         flushTransParticles(t);
783                 }
784                 else {
785                         int i;
786                         
787                         for (i = 0; i < t->total; i++) {
788                                 TransData *td = t->data + i;
789                                 Object *ob = td->ob;
790                                 
791                                 if (td->flag & TD_NOACTION)
792                                         break;
793                                 
794                                 if (td->flag & TD_SKIP)
795                                         continue;
796                                 
797                                 /* if animtimer is running, and the object already has animation data,
798                                  * check if the auto-record feature means that we should record 'samples'
799                                  * (i.e. uneditable animation values)
800                                  */
801                                 // TODO: autokeyframe calls need some setting to specify to add samples (FPoints) instead of keyframes?
802                                 if ((t->animtimer) && IS_AUTOKEY_ON(t->scene)) {
803                                         animrecord_check_state(t->scene, &ob->id, t->animtimer);
804                                         autokeyframe_ob_cb_func(NULL, t->scene, (View3D *)t->view, ob, t->mode);
805                                 }
806                                 
807                                 /* sets recalc flags fully, instead of flushing existing ones 
808                                  * otherwise proxies don't function correctly
809                                  */
810                                 DAG_id_flush_update(&ob->id, OB_RECALC_OB);
811                         }
812                 }
813                 
814                 if(((View3D*)t->view)->drawtype == OB_SHADED)
815                         reshadeall_displist(t->scene);
816         }
817 }
818
819 void drawLine(TransInfo *t, float *center, float *dir, char axis, short options)
820 {
821         float v1[3], v2[3], v3[3];
822         char col[3], col2[3];
823
824         if (t->spacetype == SPACE_VIEW3D)
825         {
826                 View3D *v3d = t->view;
827                 
828                 glPushMatrix();
829                 
830                 //if(t->obedit) glLoadMatrixf(t->obedit->obmat);        // sets opengl viewing
831                 
832                 
833                 copy_v3_v3(v3, dir);
834                 mul_v3_fl(v3, v3d->far);
835                 
836                 sub_v3_v3v3(v2, center, v3);
837                 add_v3_v3v3(v1, center, v3);
838                 
839                 if (options & DRAWLIGHT) {
840                         col[0] = col[1] = col[2] = 220;
841                 }
842                 else {
843                         UI_GetThemeColor3ubv(TH_GRID, col);
844                 }
845                 UI_make_axis_color(col, col2, axis);
846                 glColor3ubv((GLubyte *)col2);
847                 
848                 setlinestyle(0);
849                 glBegin(GL_LINE_STRIP);
850                         glVertex3fv(v1);
851                         glVertex3fv(v2);
852                 glEnd();
853                 
854                 glPopMatrix();
855         }
856 }
857
858 void resetTransRestrictions(TransInfo *t)
859 {
860         t->flag &= ~T_ALL_RESTRICTIONS;
861 }
862
863 int initTransInfo (bContext *C, TransInfo *t, wmOperator *op, wmEvent *event)
864 {
865         Scene *sce = CTX_data_scene(C);
866         ToolSettings *ts = CTX_data_tool_settings(C);
867         ARegion *ar = CTX_wm_region(C);
868         ScrArea *sa = CTX_wm_area(C);
869         Object *obedit = CTX_data_edit_object(C);
870         
871         /* moving: is shown in drawobject() (transform color) */
872 //  TRANSFORM_FIX_ME
873 //      if(obedit || (t->flag & T_POSE) ) G.moving= G_TRANSFORM_EDIT;
874 //      else if(G.f & G_PARTICLEEDIT) G.moving= G_TRANSFORM_PARTICLE;
875 //      else G.moving= G_TRANSFORM_OBJ;
876         
877         t->scene = sce;
878         t->sa = sa;
879         t->ar = ar;
880         t->obedit = obedit;
881         t->settings = ts;
882         
883         t->data = NULL;
884         t->ext = NULL;
885         
886         t->helpline = HLP_NONE;
887         
888         t->flag = 0;
889         
890         t->redraw = 1; /* redraw first time */
891         
892         if (event)
893         {
894                 t->imval[0] = event->x - t->ar->winrct.xmin;
895                 t->imval[1] = event->y - t->ar->winrct.ymin;
896                 
897                 t->event_type = event->type;
898         }
899         else
900         {
901                 t->imval[0] = 0;
902                 t->imval[1] = 0;
903         }
904         
905         t->con.imval[0] = t->imval[0];
906         t->con.imval[1] = t->imval[1];
907         
908         t->mval[0] = t->imval[0];
909         t->mval[1] = t->imval[1];
910         
911         t->transform            = NULL;
912         t->handleEvent          = NULL;
913         
914         t->total                        = 0;
915         
916         t->val = 0.0f;
917         
918         t->vec[0]                       =
919                 t->vec[1]               =
920                 t->vec[2]               = 0.0f;
921         
922         t->center[0]            =
923                 t->center[1]    =
924                 t->center[2]    = 0.0f;
925         
926         unit_m3(t->mat);
927         
928         /* if there's an event, we're modal */
929         if (event) {
930                 t->flag |= T_MODAL;
931         }
932
933         /* Crease needs edge flag */
934         if (t->mode == TFM_CREASE) {
935                 t->options |= CTX_EDGE;
936         }
937
938         t->spacetype = sa->spacetype;
939         if(t->spacetype == SPACE_VIEW3D)
940         {
941                 View3D *v3d = sa->spacedata.first;
942                 
943                 t->view = v3d;
944                 t->animtimer= CTX_wm_screen(C)->animtimer;
945                 
946                 /* turn manipulator off during transform */
947                 // FIXME: but don't do this when USING the manipulator...
948                 if (t->flag & T_MODAL) {
949                         t->twtype = v3d->twtype;
950                         v3d->twtype = 0;
951                 }
952
953                 if(v3d->flag & V3D_ALIGN) t->flag |= T_V3D_ALIGN;
954                 t->around = v3d->around;
955                 
956                 if (op && RNA_struct_find_property(op->ptr, "constraint_orientation") && RNA_property_is_set(op->ptr, "constraint_orientation"))
957                 {
958                         t->current_orientation = RNA_enum_get(op->ptr, "constraint_orientation");
959                         
960                         if (t->current_orientation >= V3D_MANIP_CUSTOM + BIF_countTransformOrientation(C))
961                         {
962                                 t->current_orientation = V3D_MANIP_GLOBAL;
963                         }
964                 }
965                 else
966                 {
967                         t->current_orientation = v3d->twmode;
968                 }
969         }
970         else if(t->spacetype==SPACE_IMAGE || t->spacetype==SPACE_NODE)
971         {
972                 SpaceImage *sima = sa->spacedata.first;
973                 // XXX for now, get View2D  from the active region
974                 t->view = &ar->v2d;
975                 t->around = sima->around;
976         }
977         else if(t->spacetype==SPACE_IPO) 
978         {
979                 SpaceIpo *sipo= sa->spacedata.first;
980                 t->view = &ar->v2d;
981                 t->around = sipo->around;
982         }
983         else
984         {
985                 // XXX for now, get View2D  from the active region
986                 t->view = &ar->v2d;
987                 // XXX for now, the center point is the midpoint of the data
988                 t->around = V3D_CENTER;
989         }
990         
991         if (op && RNA_property_is_set(op->ptr, "release_confirm"))
992         {
993                 if (RNA_boolean_get(op->ptr, "release_confirm"))
994                 {
995                         t->flag |= T_RELEASE_CONFIRM;
996                 }
997         }
998         else
999         {
1000                 if (U.flag & USER_RELEASECONFIRM)
1001                 {
1002                         t->flag |= T_RELEASE_CONFIRM;
1003                 }
1004         }
1005
1006         if (op && RNA_struct_find_property(op->ptr, "mirror") && RNA_property_is_set(op->ptr, "mirror"))
1007         {
1008                 if (RNA_boolean_get(op->ptr, "mirror"))
1009                 {
1010                         t->flag |= T_MIRROR;
1011                         t->mirror = 1;
1012                 }
1013         }
1014         // Need stuff to take it from edit mesh or whatnot here
1015         else
1016         {
1017                 if (t->obedit && t->obedit->type == OB_MESH && (((Mesh *)t->obedit->data)->editflag & ME_EDIT_MIRROR_X))
1018                 {
1019                         t->flag |= T_MIRROR;
1020                         t->mirror = 1;
1021                 }
1022         }
1023         
1024         /* setting PET flag only if property exist in operator. Otherwise, assume it's not supported */
1025         if (op && RNA_struct_find_property(op->ptr, "proportional"))
1026         {
1027                 if (RNA_property_is_set(op->ptr, "proportional"))
1028                 {
1029                         switch(RNA_enum_get(op->ptr, "proportional"))
1030                         {
1031                         case PROP_EDIT_CONNECTED:
1032                                 t->flag |= T_PROP_CONNECTED;
1033                         case PROP_EDIT_ON:
1034                                 t->flag |= T_PROP_EDIT;
1035                                 break;
1036                         }
1037                 }
1038                 else
1039                 {
1040                         /* use settings from scene only if modal */
1041                         if (t->flag & T_MODAL)
1042                         {
1043                                 if ((t->options & CTX_NO_PET) == 0)
1044                                 {
1045                                         if (t->obedit && ts->proportional != PROP_EDIT_OFF)
1046                                         {
1047                                                 t->flag |= T_PROP_EDIT;
1048
1049                                                 if(ts->proportional == PROP_EDIT_CONNECTED)
1050                                                         t->flag |= T_PROP_CONNECTED;
1051                                         }
1052                                         else if (t->obedit == NULL && ts->proportional_objects)
1053                                         {
1054                                                 t->flag |= T_PROP_EDIT;
1055                                         }
1056                                 }
1057                         }
1058                 }
1059                 
1060                 if (op && RNA_struct_find_property(op->ptr, "proportional_size") && RNA_property_is_set(op->ptr, "proportional_size"))
1061                 {
1062                         t->prop_size = RNA_float_get(op->ptr, "proportional_size");
1063                 }
1064                 else
1065                 {
1066                         t->prop_size = ts->proportional_size;
1067                 }
1068                 
1069                 
1070                 /* TRANSFORM_FIX_ME rna restrictions */
1071                 if (t->prop_size <= 0)
1072                 {
1073                         t->prop_size = 1.0f;
1074                 }
1075                 
1076                 if (op && RNA_struct_find_property(op->ptr, "proportional_edit_falloff") && RNA_property_is_set(op->ptr, "proportional_edit_falloff"))
1077                 {
1078                         t->prop_mode = RNA_enum_get(op->ptr, "proportional_edit_falloff");
1079                 }
1080                 else
1081                 {
1082                         t->prop_mode = ts->prop_mode;
1083                 }
1084         }
1085         else /* add not pet option to context when not available */
1086         {
1087                 t->options |= CTX_NO_PET;
1088         }
1089         
1090         setTransformViewMatrices(t);
1091         initNumInput(&t->num);
1092         initNDofInput(&t->ndof);
1093         
1094         return 1;
1095 }
1096
1097 /* Here I would suggest only TransInfo related issues, like free data & reset vars. Not redraws */
1098 void postTrans (bContext *C, TransInfo *t)
1099 {
1100         TransData *td;
1101         
1102         if (t->draw_handle_view)
1103                 ED_region_draw_cb_exit(t->ar->type, t->draw_handle_view);
1104         if (t->draw_handle_apply)
1105                 ED_region_draw_cb_exit(t->ar->type, t->draw_handle_apply);
1106         if (t->draw_handle_pixel)
1107                 ED_region_draw_cb_exit(t->ar->type, t->draw_handle_pixel);
1108         if (t->draw_handle_cursor)
1109                 WM_paint_cursor_end(CTX_wm_manager(C), t->draw_handle_cursor);
1110
1111         if (t->customFree) {
1112                 /* Can take over freeing t->data and data2d etc... */
1113                 t->customFree(t);
1114         }
1115         else if (t->customData) {
1116                 MEM_freeN(t->customData);
1117         }
1118
1119         /* postTrans can be called when nothing is selected, so data is NULL already */
1120         if (t->data) {
1121                 int a;
1122                 
1123                 /* free data malloced per trans-data */
1124                 for(a=0, td= t->data; a<t->total; a++, td++) {
1125                         if (td->flag & TD_BEZTRIPLE) 
1126                                 MEM_freeN(td->hdata);
1127                 }
1128                 MEM_freeN(t->data);
1129         }
1130         
1131         BLI_freelistN(&t->tsnap.points);
1132
1133         if (t->ext) MEM_freeN(t->ext);
1134         if (t->data2d) {
1135                 MEM_freeN(t->data2d);
1136                 t->data2d= NULL;
1137         }
1138         
1139         if(t->spacetype==SPACE_IMAGE) {
1140                 SpaceImage *sima= t->sa->spacedata.first;
1141                 if(sima->flag & SI_LIVE_UNWRAP)
1142                         ED_uvedit_live_unwrap_end(t->state == TRANS_CANCEL);
1143         }
1144         
1145         if (t->mouse.data)
1146         {
1147                 MEM_freeN(t->mouse.data);
1148         }
1149 }
1150
1151 void applyTransObjects(TransInfo *t)
1152 {
1153         TransData *td;
1154         
1155         for (td = t->data; td < t->data + t->total; td++) {
1156                 VECCOPY(td->iloc, td->loc);
1157                 if (td->ext->rot) {
1158                         VECCOPY(td->ext->irot, td->ext->rot);
1159                 }
1160                 if (td->ext->size) {
1161                         VECCOPY(td->ext->isize, td->ext->size);
1162                 }
1163         }
1164         recalcData(t);
1165 }
1166
1167 static void restoreElement(TransData *td) {
1168         /* TransData for crease has no loc */
1169         if (td->loc) {
1170                 VECCOPY(td->loc, td->iloc);
1171         }
1172         if (td->val) {
1173                 *td->val = td->ival;
1174         }
1175
1176         if (td->ext && (td->flag&TD_NO_EXT)==0) {
1177                 if (td->ext->rot) {
1178                         VECCOPY(td->ext->rot, td->ext->irot);
1179                 }
1180                 if (td->ext->size) {
1181                         VECCOPY(td->ext->size, td->ext->isize);
1182                 }
1183                 if (td->ext->quat) {
1184                         QUATCOPY(td->ext->quat, td->ext->iquat);
1185                 }
1186         }
1187         
1188         if (td->flag & TD_BEZTRIPLE) {
1189                 *(td->hdata->h1) = td->hdata->ih1;
1190                 *(td->hdata->h2) = td->hdata->ih2;
1191         }
1192 }
1193
1194 void restoreTransObjects(TransInfo *t)
1195 {
1196         TransData *td;
1197         TransData2D *td2d;
1198
1199         for (td = t->data; td < t->data + t->total; td++) {
1200                 restoreElement(td);
1201         }
1202         
1203         for (td2d=t->data2d; t->data2d && td2d < t->data2d + t->total; td2d++) {
1204                 if (td2d->h1) {
1205                         td2d->h1[0] = td2d->ih1[0];
1206                         td2d->h1[1] = td2d->ih1[1];
1207                 }
1208                 if (td2d->h2) {
1209                         td2d->h2[0] = td2d->ih2[0];
1210                         td2d->h2[1] = td2d->ih2[1];
1211                 }
1212         }
1213
1214         unit_m3(t->mat);
1215         
1216         recalcData(t);
1217 }
1218
1219 void calculateCenter2D(TransInfo *t)
1220 {
1221         if (t->flag & (T_EDIT|T_POSE)) {
1222                 Object *ob= t->obedit?t->obedit:t->poseobj;
1223                 float vec[3];
1224                 
1225                 VECCOPY(vec, t->center);
1226                 mul_m4_v3(ob->obmat, vec);
1227                 projectIntView(t, vec, t->center2d);
1228         }
1229         else {
1230                 projectIntView(t, t->center, t->center2d);
1231         }
1232 }
1233
1234 void calculateCenterCursor(TransInfo *t)
1235 {
1236         float *cursor;
1237         
1238         cursor = give_cursor(t->scene, t->view);
1239         VECCOPY(t->center, cursor);
1240         
1241         /* If edit or pose mode, move cursor in local space */
1242         if (t->flag & (T_EDIT|T_POSE)) {
1243                 Object *ob = t->obedit?t->obedit:t->poseobj;
1244                 float mat[3][3], imat[3][3];
1245                 
1246                 sub_v3_v3v3(t->center, t->center, ob->obmat[3]);
1247                 copy_m3_m4(mat, ob->obmat);
1248                 invert_m3_m3(imat, mat);
1249                 mul_m3_v3(imat, t->center);
1250         }
1251         
1252         calculateCenter2D(t);
1253 }
1254
1255 void calculateCenterCursor2D(TransInfo *t)
1256 {
1257         float aspx=1.0, aspy=1.0;
1258         float *cursor= NULL;
1259         
1260         if(t->spacetype==SPACE_IMAGE) {
1261                 SpaceImage *sima= (SpaceImage *)t->sa->spacedata.first;
1262                 /* only space supported right now but may change */
1263                 ED_space_image_uv_aspect(sima, &aspx, &aspy);
1264                 cursor = sima->cursor;
1265         }
1266         
1267         if (cursor) {
1268                 t->center[0] = cursor[0] * aspx;
1269                 t->center[1] = cursor[1] * aspy;
1270         }
1271         
1272         calculateCenter2D(t);
1273 }
1274
1275 void calculateCenterCursorGraph2D(TransInfo *t)
1276 {
1277         SpaceIpo *sipo= (SpaceIpo *)t->sa->spacedata.first;
1278         Scene *scene= t->scene;
1279         
1280         /* cursor is combination of current frame, and graph-editor cursor value */
1281         t->center[0]= (float)(scene->r.cfra);
1282         t->center[1]= sipo->cursorVal;
1283         
1284         calculateCenter2D(t);
1285 }
1286
1287 void calculateCenterMedian(TransInfo *t)
1288 {
1289         float partial[3] = {0.0f, 0.0f, 0.0f};
1290         int total = 0;
1291         int i;
1292         
1293         for(i = 0; i < t->total; i++) {
1294                 if (t->data[i].flag & TD_SELECTED) {
1295                         if (!(t->data[i].flag & TD_NOCENTER))
1296                         {
1297                                 add_v3_v3(partial, t->data[i].center);
1298                                 total++;
1299                         }
1300                 }
1301                 else {
1302                         /*
1303                            All the selected elements are at the head of the array
1304                            which means we can stop when it finds unselected data
1305                         */
1306                         break;
1307                 }
1308         }
1309         if(i)
1310                 mul_v3_fl(partial, 1.0f / total);
1311         VECCOPY(t->center, partial);
1312         
1313         calculateCenter2D(t);
1314 }
1315
1316 void calculateCenterBound(TransInfo *t)
1317 {
1318         float max[3];
1319         float min[3];
1320         int i;
1321         for(i = 0; i < t->total; i++) {
1322                 if (i) {
1323                         if (t->data[i].flag & TD_SELECTED) {
1324                                 if (!(t->data[i].flag & TD_NOCENTER))
1325                                         minmax_v3_v3v3(min, max, t->data[i].center);
1326                         }
1327                         else {
1328                                 /*
1329                                    All the selected elements are at the head of the array
1330                                    which means we can stop when it finds unselected data
1331                                 */
1332                                 break;
1333                         }
1334                 }
1335                 else {
1336                         VECCOPY(max, t->data[i].center);
1337                         VECCOPY(min, t->data[i].center);
1338                 }
1339         }
1340         add_v3_v3v3(t->center, min, max);
1341         mul_v3_fl(t->center, 0.5);
1342         
1343         calculateCenter2D(t);
1344 }
1345
1346 void calculateCenter(TransInfo *t)
1347 {
1348         switch(t->around) {
1349         case V3D_CENTER:
1350                 calculateCenterBound(t);
1351                 break;
1352         case V3D_CENTROID:
1353                 calculateCenterMedian(t);
1354                 break;
1355         case V3D_CURSOR:
1356                 if(t->spacetype==SPACE_IMAGE)
1357                         calculateCenterCursor2D(t);
1358                 else if(t->spacetype==SPACE_IPO)
1359                         calculateCenterCursorGraph2D(t);
1360                 else
1361                         calculateCenterCursor(t);
1362                 break;
1363         case V3D_LOCAL:
1364                 /* Individual element center uses median center for helpline and such */
1365                 calculateCenterMedian(t);
1366                 break;
1367         case V3D_ACTIVE:
1368                 {
1369                 /* set median, and if if if... do object center */
1370                 
1371                 /* EDIT MODE ACTIVE EDITMODE ELEMENT */
1372
1373                 if (t->obedit && t->obedit->type == OB_MESH) {
1374                         EditSelection ese;
1375                         EditMesh *em = BKE_mesh_get_editmesh(t->obedit->data);
1376                         
1377                         if (EM_get_actSelection(em, &ese)) {
1378                                 EM_editselection_center(t->center, &ese);
1379                                 calculateCenter2D(t);
1380                                 break;
1381                         }
1382                 } /* END EDIT MODE ACTIVE ELEMENT */
1383                 
1384                 calculateCenterMedian(t);
1385                 if((t->flag & (T_EDIT|T_POSE))==0)
1386                 {
1387                         Scene *scene = t->scene;
1388                         Object *ob= OBACT;
1389                         if(ob)
1390                         {
1391                                 VECCOPY(t->center, ob->obmat[3]);
1392                                 projectIntView(t, t->center, t->center2d);
1393                         }
1394                 }
1395                 
1396                 }
1397         }
1398         
1399         /* setting constraint center */
1400         VECCOPY(t->con.center, t->center);
1401         if(t->flag & (T_EDIT|T_POSE))
1402         {
1403                 Object *ob= t->obedit?t->obedit:t->poseobj;
1404                 mul_m4_v3(ob->obmat, t->con.center);
1405         }
1406         
1407         /* for panning from cameraview */
1408         if(t->flag & T_OBJECT)
1409         {
1410                 if(t->spacetype==SPACE_VIEW3D && t->ar && t->ar->regiontype == RGN_TYPE_WINDOW)
1411                 {
1412                         View3D *v3d = t->view;
1413                         Scene *scene = t->scene;
1414                         RegionView3D *rv3d = t->ar->regiondata;
1415                         
1416                         if(v3d->camera == OBACT && rv3d->persp==RV3D_CAMOB)
1417                         {
1418                                 float axis[3];
1419                                 /* persinv is nasty, use viewinv instead, always right */
1420                                 VECCOPY(axis, t->viewinv[2]);
1421                                 normalize_v3(axis);
1422                                 
1423                                 /* 6.0 = 6 grid units */
1424                                 axis[0]= t->center[0]- 6.0f*axis[0];
1425                                 axis[1]= t->center[1]- 6.0f*axis[1];
1426                                 axis[2]= t->center[2]- 6.0f*axis[2];
1427                                 
1428                                 projectIntView(t, axis, t->center2d);
1429                                 
1430                                 /* rotate only needs correct 2d center, grab needs initgrabz() value */
1431                                 if(t->mode==TFM_TRANSLATION)
1432                                 {
1433                                         VECCOPY(t->center, axis);
1434                                         VECCOPY(t->con.center, t->center);
1435                                 }
1436                         }
1437                 }
1438         }
1439         
1440         if(t->spacetype==SPACE_VIEW3D)
1441         {
1442                 /* initgrabz() defines a factor for perspective depth correction, used in window_to_3d_delta() */
1443                 if(t->flag & (T_EDIT|T_POSE)) {
1444                         Object *ob= t->obedit?t->obedit:t->poseobj;
1445                         float vec[3];
1446                         
1447                         VECCOPY(vec, t->center);
1448                         mul_m4_v3(ob->obmat, vec);
1449                         initgrabz(t->ar->regiondata, vec[0], vec[1], vec[2]);
1450                 }
1451                 else {
1452                         initgrabz(t->ar->regiondata, t->center[0], t->center[1], t->center[2]);
1453                 }
1454         }
1455 }
1456
1457 void calculatePropRatio(TransInfo *t)
1458 {
1459         TransData *td = t->data;
1460         int i;
1461         float dist;
1462         short connected = t->flag & T_PROP_CONNECTED;
1463
1464         if (t->flag & T_PROP_EDIT) {
1465                 for(i = 0 ; i < t->total; i++, td++) {
1466                         if (td->flag & TD_SELECTED) {
1467                                 td->factor = 1.0f;
1468                         }
1469                         else if (t->flag & T_MIRROR && td->loc[0] * t->mirror < -0.00001f)
1470                         {
1471                                 td->flag |= TD_SKIP;
1472                                 td->factor = 0.0f;
1473                                 restoreElement(td);
1474                         }
1475                         else if ((connected &&
1476                                                 (td->flag & TD_NOTCONNECTED || td->dist > t->prop_size))
1477                                 ||
1478                                         (connected == 0 &&
1479                                                 td->rdist > t->prop_size)) {
1480                                 /*
1481                                    The elements are sorted according to their dist member in the array,
1482                                    that means we can stop when it finds one element outside of the propsize.
1483                                 */
1484                                 td->flag |= TD_NOACTION;
1485                                 td->factor = 0.0f;
1486                                 restoreElement(td);
1487                         }
1488                         else {
1489                                 /* Use rdist for falloff calculations, it is the real distance */
1490                                 td->flag &= ~TD_NOACTION;
1491                                 
1492                                 if (connected)
1493                                         dist= (t->prop_size-td->dist)/t->prop_size;
1494                                 else
1495                                         dist= (t->prop_size-td->rdist)/t->prop_size;
1496
1497                                 /*
1498                                  * Clamp to positive numbers.
1499                                  * Certain corner cases with connectivity and individual centers
1500                                  * can give values of rdist larger than propsize.
1501                                  */
1502                                 if (dist < 0.0f)
1503                                         dist = 0.0f;
1504                                 
1505                                 switch(t->prop_mode) {
1506                                 case PROP_SHARP:
1507                                         td->factor= dist*dist;
1508                                         break;
1509                                 case PROP_SMOOTH:
1510                                         td->factor= 3.0f*dist*dist - 2.0f*dist*dist*dist;
1511                                         break;
1512                                 case PROP_ROOT:
1513                                         td->factor = (float)sqrt(dist);
1514                                         break;
1515                                 case PROP_LIN:
1516                                         td->factor = dist;
1517                                         break;
1518                                 case PROP_CONST:
1519                                         td->factor = 1.0f;
1520                                         break;
1521                                 case PROP_SPHERE:
1522                                         td->factor = (float)sqrt(2*dist - dist * dist);
1523                                         break;
1524                                 case PROP_RANDOM:
1525                                         BLI_srand( BLI_rand() ); /* random seed */
1526                                         td->factor = BLI_frand()*dist;
1527                                         break;
1528                                 default:
1529                                         td->factor = 1;
1530                                 }
1531                         }
1532                 }
1533                 switch(t->prop_mode) {
1534                 case PROP_SHARP:
1535                         strcpy(t->proptext, "(Sharp)");
1536                         break;
1537                 case PROP_SMOOTH:
1538                         strcpy(t->proptext, "(Smooth)");
1539                         break;
1540                 case PROP_ROOT:
1541                         strcpy(t->proptext, "(Root)");
1542                         break;
1543                 case PROP_LIN:
1544                         strcpy(t->proptext, "(Linear)");
1545                         break;
1546                 case PROP_CONST:
1547                         strcpy(t->proptext, "(Constant)");
1548                         break;
1549                 case PROP_SPHERE:
1550                         strcpy(t->proptext, "(Sphere)");
1551                         break;
1552                 case PROP_RANDOM:
1553                         strcpy(t->proptext, "(Random)");
1554                         break;
1555                 default:
1556                         strcpy(t->proptext, "");
1557                 }
1558         }
1559         else {
1560                 for(i = 0 ; i < t->total; i++, td++) {
1561                         td->factor = 1.0;
1562                 }
1563                 strcpy(t->proptext, "");
1564         }
1565 }
1566
1567 float get_drawsize(ARegion *ar, float *co)
1568 {
1569         RegionView3D *rv3d= ar->regiondata;
1570         float size, vec[3], len1, len2;
1571         
1572         /* size calculus, depending ortho/persp settings, like initgrabz() */
1573         size= rv3d->persmat[0][3]*co[0]+ rv3d->persmat[1][3]*co[1]+ rv3d->persmat[2][3]*co[2]+ rv3d->persmat[3][3];
1574         
1575         VECCOPY(vec, rv3d->persinv[0]);
1576         len1= normalize_v3(vec);
1577         VECCOPY(vec, rv3d->persinv[1]);
1578         len2= normalize_v3(vec);
1579         
1580         size*= 0.01f*(len1>len2?len1:len2);
1581         
1582         /* correct for window size to make widgets appear fixed size */
1583         if(ar->winx > ar->winy) size*= 1000.0f/(float)ar->winx;
1584         else size*= 1000.0f/(float)ar->winy;
1585         
1586         return size;
1587 }