Code cleanup: use sqrtf when input and output are float
[blender.git] / source / blender / editors / transform / transform_generics.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  * The Original Code is: all of this file.
22  *
23  * Contributor(s): none yet.
24  *
25  * ***** END GPL LICENSE BLOCK *****
26  */
27
28 /** \file blender/editors/transform/transform_generics.c
29  *  \ingroup edtransform
30  */
31
32 #include <string.h>
33 #include <math.h>
34
35 #include "MEM_guardedalloc.h"
36
37 #include "BLI_sys_types.h" /* for intptr_t support */
38
39 #include "DNA_anim_types.h"
40 #include "DNA_armature_types.h"
41 #include "DNA_lattice_types.h"
42 #include "DNA_screen_types.h"
43 #include "DNA_sequence_types.h"
44 #include "DNA_space_types.h"
45 #include "DNA_scene_types.h"
46 #include "DNA_object_types.h"
47 #include "DNA_mesh_types.h"
48 #include "DNA_meshdata_types.h"
49 #include "DNA_view3d_types.h"
50 #include "DNA_modifier_types.h"
51 #include "DNA_movieclip_types.h"
52 #include "DNA_mask_types.h"
53
54 #include "BLI_math.h"
55 #include "BLI_blenlib.h"
56 #include "BLI_rand.h"
57 #include "BLI_utildefines.h"
58
59 #include "BLF_translation.h"
60
61 #include "RNA_access.h"
62
63 #include "BIF_gl.h"
64 #include "BIF_glutil.h"
65
66 #include "BIK_api.h"
67
68 #include "BKE_animsys.h"
69 #include "BKE_action.h"
70 #include "BKE_armature.h"
71 #include "BKE_curve.h"
72 #include "BKE_depsgraph.h"
73 #include "BKE_displist.h"
74 #include "BKE_fcurve.h"
75 #include "BKE_lattice.h"
76 #include "BKE_mesh.h"
77 #include "BKE_nla.h"
78 #include "BKE_context.h"
79 #include "BKE_sequencer.h"
80 #include "BKE_editmesh.h"
81 #include "BKE_tracking.h"
82 #include "BKE_mask.h"
83
84 #include "ED_anim_api.h"
85 #include "ED_armature.h"
86 #include "ED_image.h"
87 #include "ED_keyframing.h"
88 #include "ED_markers.h"
89 #include "ED_mesh.h"
90 #include "ED_particle.h"
91 #include "ED_screen_types.h"
92 #include "ED_space_api.h"
93 #include "ED_uvedit.h"
94 #include "ED_view3d.h"
95 #include "ED_curve.h" /* for curve_editnurbs */
96 #include "ED_clip.h"
97 #include "ED_screen.h"
98
99 #include "WM_types.h"
100 #include "WM_api.h"
101
102 #include "UI_resources.h"
103
104 #include "transform.h"
105
106 /* ************************** Functions *************************** */
107
108 void getViewVector(TransInfo *t, float coord[3], float vec[3])
109 {
110         if (t->persp != RV3D_ORTHO) {
111                 float p1[4], p2[4];
112                 
113                 copy_v3_v3(p1, coord);
114                 p1[3] = 1.0f;
115                 copy_v3_v3(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                 copy_v3_v3(vec, t->viewinv[2]);
129         }
130         normalize_v3(vec);
131 }
132
133 /* ************************** GENERICS **************************** */
134
135
136 static void clipMirrorModifier(TransInfo *t, Object *ob)
137 {
138         ModifierData *md = ob->modifiers.first;
139         float tolerance[3] = {0.0f, 0.0f, 0.0f};
140         int axis = 0;
141         
142         for (; md; md = md->next) {
143                 if ((md->type == eModifierType_Mirror) && (md->mode & eModifierMode_Realtime)) {
144                         MirrorModifierData *mmd = (MirrorModifierData *) md;
145                         
146                         if (mmd->flag & MOD_MIR_CLIPPING) {
147                                 axis = 0;
148                                 if (mmd->flag & MOD_MIR_AXIS_X) {
149                                         axis |= 1;
150                                         tolerance[0] = mmd->tolerance;
151                                 }
152                                 if (mmd->flag & MOD_MIR_AXIS_Y) {
153                                         axis |= 2;
154                                         tolerance[1] = mmd->tolerance;
155                                 }
156                                 if (mmd->flag & MOD_MIR_AXIS_Z) {
157                                         axis |= 4;
158                                         tolerance[2] = mmd->tolerance;
159                                 }
160                                 if (axis) {
161                                         float mtx[4][4], imtx[4][4];
162                                         int i;
163                                         TransData *td = t->data;
164                                         
165                                         if (mmd->mirror_ob) {
166                                                 float obinv[4][4];
167                                                 
168                                                 invert_m4_m4(obinv, mmd->mirror_ob->obmat);
169                                                 mul_m4_m4m4(mtx, obinv, ob->obmat);
170                                                 invert_m4_m4(imtx, mtx);
171                                         }
172                                         
173                                         for (i = 0; i < t->total; i++, td++) {
174                                                 int clip;
175                                                 float loc[3], iloc[3];
176                                                 
177                                                 if (td->flag & TD_NOACTION)
178                                                         break;
179                                                 if (td->loc == NULL)
180                                                         break;
181                                                 
182                                                 if (td->flag & TD_SKIP)
183                                                         continue;
184                                                 
185                                                 copy_v3_v3(loc,  td->loc);
186                                                 copy_v3_v3(iloc, td->iloc);
187                                                 
188                                                 if (mmd->mirror_ob) {
189                                                         mul_m4_v3(mtx, loc);
190                                                         mul_m4_v3(mtx, iloc);
191                                                 }
192                                                 
193                                                 clip = 0;
194                                                 if (axis & 1) {
195                                                         if (fabsf(iloc[0]) <= tolerance[0] ||
196                                                             loc[0] * iloc[0] < 0.0f)
197                                                         {
198                                                                 loc[0] = 0.0f;
199                                                                 clip = 1;
200                                                         }
201                                                 }
202                                                 
203                                                 if (axis & 2) {
204                                                         if (fabsf(iloc[1]) <= tolerance[1] ||
205                                                             loc[1] * iloc[1] < 0.0f)
206                                                         {
207                                                                 loc[1] = 0.0f;
208                                                                 clip = 1;
209                                                         }
210                                                 }
211                                                 if (axis & 4) {
212                                                         if (fabsf(iloc[2]) <= tolerance[2] ||
213                                                             loc[2] * iloc[2] < 0.0f)
214                                                         {
215                                                                 loc[2] = 0.0f;
216                                                                 clip = 1;
217                                                         }
218                                                 }
219                                                 if (clip) {
220                                                         if (mmd->mirror_ob) {
221                                                                 mul_m4_v3(imtx, loc);
222                                                         }
223                                                         copy_v3_v3(td->loc, loc);
224                                                 }
225                                         }
226                                 }
227                                 
228                         }
229                 }
230         }
231 }
232
233 /* assumes obedit set to mesh object */
234 static void editbmesh_apply_to_mirror(TransInfo *t)
235 {
236         TransData *td = t->data;
237         BMVert *eve;
238         int i;
239         
240         for (i = 0; i < t->total; i++, td++) {
241                 if (td->flag & TD_NOACTION)
242                         break;
243                 if (td->loc == NULL)
244                         break;
245                 if (td->flag & TD_SKIP)
246                         continue;
247                 
248                 eve = td->extra;
249                 if (eve) {
250                         eve->co[0] = -td->loc[0];
251                         eve->co[1] = td->loc[1];
252                         eve->co[2] = td->loc[2];
253                 }
254                 
255                 if (td->flag & TD_MIRROR_EDGE) {
256                         td->loc[0] = 0;
257                 }
258         }
259 }
260
261 /* for the realtime animation recording feature, handle overlapping data */
262 static void animrecord_check_state(Scene *scene, ID *id, wmTimer *animtimer)
263 {
264         ScreenAnimData *sad = (animtimer) ? animtimer->customdata : NULL;
265         
266         /* sanity checks */
267         if (ELEM3(NULL, scene, id, sad))
268                 return;
269         
270         /* check if we need a new strip if:
271          *  - if animtimer is running
272          *      - we're not only keying for available channels
273          *      - the option to add new actions for each round is not enabled
274          */
275         if (IS_AUTOKEY_FLAG(scene, INSERTAVAIL) == 0 && (scene->toolsettings->autokey_flag & ANIMRECORD_FLAG_WITHNLA)) {
276                 /* if playback has just looped around, we need to add a new NLA track+strip to allow a clean pass to occur */
277                 if ((sad) && (sad->flag & ANIMPLAY_FLAG_JUMPED)) {
278                         AnimData *adt = BKE_animdata_from_id(id);
279                         
280                         /* perform push-down manually with some differences 
281                          * NOTE: BKE_nla_action_pushdown() sync warning...
282                          */
283                         if ((adt->action) && !(adt->flag & ADT_NLA_EDIT_ON)) {
284                                 float astart, aend;
285                                 
286                                 /* only push down if action is more than 1-2 frames long */
287                                 calc_action_range(adt->action, &astart, &aend, 1);
288                                 if (aend > astart + 2.0f) {
289                                         NlaStrip *strip = add_nlastrip_to_stack(adt, adt->action);
290                                         
291                                         /* clear reference to action now that we've pushed it onto the stack */
292                                         adt->action->id.us--;
293                                         adt->action = NULL;
294                                         
295                                         /* adjust blending + extend so that they will behave correctly */
296                                         strip->extendmode = NLASTRIP_EXTEND_NOTHING;
297                                         strip->flag &= ~(NLASTRIP_FLAG_AUTO_BLENDS | NLASTRIP_FLAG_SELECT | NLASTRIP_FLAG_ACTIVE);
298                                         
299                                         /* also, adjust the AnimData's action extend mode to be on 
300                                          * 'nothing' so that previous result still play 
301                                          */
302                                         adt->act_extendmode = NLASTRIP_EXTEND_NOTHING;
303                                 }
304                         }
305                 }
306         }
307 }
308
309 static bool fcu_test_selected(FCurve *fcu)
310 {
311         BezTriple *bezt = fcu->bezt;
312         unsigned int i;
313
314         if (bezt == NULL) /* ignore baked */
315                 return 0;
316
317         for (i = 0; i < fcu->totvert; i++, bezt++) {
318                 if (BEZSELECTED(bezt)) return 1;
319         }
320
321         return 0;
322 }
323
324 /* helper for recalcData() - for Action Editor transforms */
325 static void recalcData_actedit(TransInfo *t)
326 {
327         Scene *scene = t->scene;
328         SpaceAction *saction = (SpaceAction *)t->sa->spacedata.first;
329         
330         bAnimContext ac = {NULL};
331         ListBase anim_data = {NULL, NULL};
332         bAnimListElem *ale;
333         int filter;
334         
335         /* initialize relevant anim-context 'context' data from TransInfo data */
336         /* NOTE: sync this with the code in ANIM_animdata_get_context() */
337         ac.scene = t->scene;
338         ac.obact = OBACT;
339         ac.sa = t->sa;
340         ac.ar = t->ar;
341         ac.sl = (t->sa) ? t->sa->spacedata.first : NULL;
342         ac.spacetype = (t->sa) ? t->sa->spacetype : 0;
343         ac.regiontype = (t->ar) ? t->ar->regiontype : 0;
344         
345         ANIM_animdata_context_getdata(&ac);
346         
347         /* perform flush */
348         if (ELEM(ac.datatype, ANIMCONT_GPENCIL, ANIMCONT_MASK)) {
349                 /* flush transform values back to actual coordinates */
350                 flushTransIntFrameActionData(t);
351         }
352         else {
353                 /* get animdata blocks visible in editor, assuming that these will be the ones where things changed */
354                 filter = (ANIMFILTER_DATA_VISIBLE | ANIMFILTER_ANIMDATA);
355                 ANIM_animdata_filter(&ac, &anim_data, filter, ac.data, ac.datatype);
356                 
357                 /* just tag these animdata-blocks to recalc, assuming that some data there changed 
358                  * BUT only do this if realtime updates are enabled
359                  */
360                 if ((saction->flag & SACTION_NOREALTIMEUPDATES) == 0) {
361                         for (ale = anim_data.first; ale; ale = ale->next) {
362                                 /* set refresh tags for objects using this animation */
363                                 ANIM_list_elem_update(t->scene, ale);
364                         }
365                 }
366                 
367                 /* now free temp channels */
368                 BLI_freelistN(&anim_data);
369         }
370 }
371 /* helper for recalcData() - for Graph Editor transforms */
372 static void recalcData_graphedit(TransInfo *t)
373 {
374         SpaceIpo *sipo = (SpaceIpo *)t->sa->spacedata.first;
375         Scene *scene;
376         
377         ListBase anim_data = {NULL, NULL};
378         bAnimContext ac = {NULL};
379         int filter;
380         
381         bAnimListElem *ale;
382         int dosort = 0;
383
384         /* initialize relevant anim-context 'context' data from TransInfo data */
385         /* NOTE: sync this with the code in ANIM_animdata_get_context() */
386         scene = ac.scene = t->scene;
387         ac.obact = OBACT;
388         ac.sa = t->sa;
389         ac.ar = t->ar;
390         ac.sl = (t->sa) ? t->sa->spacedata.first : NULL;
391         ac.spacetype = (t->sa) ? t->sa->spacetype : 0;
392         ac.regiontype = (t->ar) ? t->ar->regiontype : 0;
393         
394         ANIM_animdata_context_getdata(&ac);
395         
396         /* do the flush first */
397         flushTransGraphData(t);
398         
399         /* get curves to check if a re-sort is needed */
400         filter = (ANIMFILTER_DATA_VISIBLE | ANIMFILTER_FOREDIT | ANIMFILTER_CURVE_VISIBLE);
401         ANIM_animdata_filter(&ac, &anim_data, filter, ac.data, ac.datatype);
402         
403         /* now test if there is a need to re-sort */
404         for (ale = anim_data.first; ale; ale = ale->next) {
405                 FCurve *fcu = (FCurve *)ale->key_data;
406                 
407                 /* ignore unselected fcurves */
408                 if (!fcu_test_selected(fcu))
409                         continue;
410
411                 /* watch it: if the time is wrong: do not correct handles yet */
412                 if (test_time_fcurve(fcu))
413                         dosort++;
414                 else
415                         calchandles_fcurve(fcu);
416                 
417                 /* set refresh tags for objects using this animation,
418                  * BUT only if realtime updates are enabled  
419                  */
420                 if ((sipo->flag & SIPO_NOREALTIMEUPDATES) == 0)
421                         ANIM_list_elem_update(t->scene, ale);
422         }
423         
424         /* do resort and other updates? */
425         if (dosort) remake_graph_transdata(t, &anim_data);
426         
427         /* now free temp channels */
428         BLI_freelistN(&anim_data);
429 }
430
431 /* helper for recalcData() - for NLA Editor transforms */
432 static void recalcData_nla(TransInfo *t)
433 {
434         TransDataNla *tdn = (TransDataNla *)t->customData;
435         SpaceNla *snla = (SpaceNla *)t->sa->spacedata.first;
436         Scene *scene = t->scene;
437         double secf = FPS;
438         int i;
439         
440         /* for each strip we've got, perform some additional validation of the values that got set before
441          * using RNA to set the value (which does some special operations when setting these values to make
442          * sure that everything works ok)
443          */
444         for (i = 0; i < t->total; i++, tdn++) {
445                 NlaStrip *strip = tdn->strip;
446                 PointerRNA strip_ptr;
447                 short pExceeded, nExceeded, iter;
448                 int delta_y1, delta_y2;
449                 
450                 /* if this tdn has no handles, that means it is just a dummy that should be skipped */
451                 if (tdn->handle == 0)
452                         continue;
453                 
454                 /* set refresh tags for objects using this animation,
455                  * BUT only if realtime updates are enabled  
456                  */
457                 if ((snla->flag & SNLA_NOREALTIMEUPDATES) == 0)
458                         ANIM_id_update(t->scene, tdn->id);
459                 
460                 /* if canceling transform, just write the values without validating, then move on */
461                 if (t->state == TRANS_CANCEL) {
462                         /* clear the values by directly overwriting the originals, but also need to restore
463                          * endpoints of neighboring transition-strips
464                          */
465                         
466                         /* start */
467                         strip->start = tdn->h1[0];
468                         
469                         if ((strip->prev) && (strip->prev->type == NLASTRIP_TYPE_TRANSITION))
470                                 strip->prev->end = tdn->h1[0];
471                         
472                         /* end */
473                         strip->end = tdn->h2[0];
474                         
475                         if ((strip->next) && (strip->next->type == NLASTRIP_TYPE_TRANSITION))
476                                 strip->next->start = tdn->h2[0];
477                         
478                         /* flush transforms to child strips (since this should be a meta) */
479                         BKE_nlameta_flush_transforms(strip);
480                         
481                         /* restore to original track (if needed) */
482                         if (tdn->oldTrack != tdn->nlt) {
483                                 /* just append to end of list for now, since strips get sorted in special_aftertrans_update() */
484                                 BLI_remlink(&tdn->nlt->strips, strip);
485                                 BLI_addtail(&tdn->oldTrack->strips, strip);
486                         }
487                         
488                         continue;
489                 }
490                 
491                 /* firstly, check if the proposed transform locations would overlap with any neighboring strips
492                  * (barring transitions) which are absolute barriers since they are not being moved
493                  *
494                  * this is done as a iterative procedure (done 5 times max for now)
495                  */
496                 for (iter = 0; iter < 5; iter++) {
497                         pExceeded = ((strip->prev) && (strip->prev->type != NLASTRIP_TYPE_TRANSITION) && (tdn->h1[0] < strip->prev->end));
498                         nExceeded = ((strip->next) && (strip->next->type != NLASTRIP_TYPE_TRANSITION) && (tdn->h2[0] > strip->next->start));
499                         
500                         if ((pExceeded && nExceeded) || (iter == 4)) {
501                                 /* both endpoints exceeded (or iteration ping-pong'd meaning that we need a compromise)
502                                  *      - simply crop strip to fit within the bounds of the strips bounding it
503                                  *      - if there were no neighbors, clear the transforms (make it default to the strip's current values)
504                                  */
505                                 if (strip->prev && strip->next) {
506                                         tdn->h1[0] = strip->prev->end;
507                                         tdn->h2[0] = strip->next->start;
508                                 }
509                                 else {
510                                         tdn->h1[0] = strip->start;
511                                         tdn->h2[0] = strip->end;
512                                 }
513                         }
514                         else if (nExceeded) {
515                                 /* move backwards */
516                                 float offset = tdn->h2[0] - strip->next->start;
517                                 
518                                 tdn->h1[0] -= offset;
519                                 tdn->h2[0] -= offset;
520                         }
521                         else if (pExceeded) {
522                                 /* more forwards */
523                                 float offset = strip->prev->end - tdn->h1[0];
524                                 
525                                 tdn->h1[0] += offset;
526                                 tdn->h2[0] += offset;
527                         }
528                         else /* all is fine and well */
529                                 break;
530                 }
531                 
532                 /* handle auto-snapping */
533                 switch (snla->autosnap) {
534                         case SACTSNAP_FRAME: /* snap to nearest frame/time  */
535                                 if (snla->flag & SNLA_DRAWTIME) {
536                                         tdn->h1[0] = (float)(floor(((double)tdn->h1[0] / secf) + 0.5) * secf);
537                                         tdn->h2[0] = (float)(floor(((double)tdn->h2[0] / secf) + 0.5) * secf);
538                                 }
539                                 else {
540                                         tdn->h1[0] = floorf(tdn->h1[0] + 0.5f);
541                                         tdn->h2[0] = floorf(tdn->h2[0] + 0.5f);
542                                 }
543                                 break;
544                         
545                         case SACTSNAP_MARKER: /* snap to nearest marker */
546                                 tdn->h1[0] = (float)ED_markers_find_nearest_marker_time(&t->scene->markers, tdn->h1[0]);
547                                 tdn->h2[0] = (float)ED_markers_find_nearest_marker_time(&t->scene->markers, tdn->h2[0]);
548                                 break;
549                 }
550                 
551                 /* Use RNA to write the values to ensure that constraints on these are obeyed
552                  * (e.g. for transition strips, the values are taken from the neighbours)
553                  * 
554                  * NOTE: we write these twice to avoid truncation errors which can arise when
555                  * moving the strips a large distance using numeric input [#33852] 
556                  */
557                 RNA_pointer_create(NULL, &RNA_NlaStrip, strip, &strip_ptr);
558                 
559                 RNA_float_set(&strip_ptr, "frame_start", tdn->h1[0]);
560                 RNA_float_set(&strip_ptr, "frame_end", tdn->h2[0]);
561                 
562                 RNA_float_set(&strip_ptr, "frame_start", tdn->h1[0]);
563                 RNA_float_set(&strip_ptr, "frame_end", tdn->h2[0]);
564                 
565                 /* flush transforms to child strips (since this should be a meta) */
566                 BKE_nlameta_flush_transforms(strip);
567                 
568                 
569                 /* now, check if we need to try and move track
570                  *      - we need to calculate both, as only one may have been altered by transform if only 1 handle moved
571                  */
572                 delta_y1 = ((int)tdn->h1[1] / NLACHANNEL_STEP(snla) - tdn->trackIndex);
573                 delta_y2 = ((int)tdn->h2[1] / NLACHANNEL_STEP(snla) - tdn->trackIndex);
574                 
575                 if (delta_y1 || delta_y2) {
576                         NlaTrack *track;
577                         int delta = (delta_y2) ? delta_y2 : delta_y1;
578                         int n;
579                         
580                         /* move in the requested direction, checking at each layer if there's space for strip to pass through,
581                          * stopping on the last track available or that we're able to fit in
582                          */
583                         if (delta > 0) {
584                                 for (track = tdn->nlt->next, n = 0; (track) && (n < delta); track = track->next, n++) {
585                                         /* check if space in this track for the strip */
586                                         if (BKE_nlatrack_has_space(track, strip->start, strip->end)) {
587                                                 /* move strip to this track */
588                                                 BLI_remlink(&tdn->nlt->strips, strip);
589                                                 BKE_nlatrack_add_strip(track, strip);
590                                                 
591                                                 tdn->nlt = track;
592                                                 tdn->trackIndex++;
593                                         }
594                                         else /* can't move any further */
595                                                 break;
596                                 }
597                         }
598                         else {
599                                 /* make delta 'positive' before using it, since we now know to go backwards */
600                                 delta = -delta;
601                                 
602                                 for (track = tdn->nlt->prev, n = 0; (track) && (n < delta); track = track->prev, n++) {
603                                         /* check if space in this track for the strip */
604                                         if (BKE_nlatrack_has_space(track, strip->start, strip->end)) {
605                                                 /* move strip to this track */
606                                                 BLI_remlink(&tdn->nlt->strips, strip);
607                                                 BKE_nlatrack_add_strip(track, strip);
608                                                 
609                                                 tdn->nlt = track;
610                                                 tdn->trackIndex--;
611                                         }
612                                         else /* can't move any further */
613                                                 break;
614                                 }
615                         }
616                 }
617         }
618 }
619
620 static void recalcData_mask_common(TransInfo *t)
621 {
622         Mask *mask = CTX_data_edit_mask(t->context);
623
624         flushTransMasking(t);
625
626         DAG_id_tag_update(&mask->id, 0);
627 }
628
629 /* helper for recalcData() - for Image Editor transforms */
630 static void recalcData_image(TransInfo *t)
631 {
632         if (t->options & CTX_MASK) {
633                 recalcData_mask_common(t);
634         }
635         else if (t->obedit && t->obedit->type == OB_MESH) {
636                 SpaceImage *sima = t->sa->spacedata.first;
637                 
638                 flushTransUVs(t);
639                 if (sima->flag & SI_LIVE_UNWRAP)
640                         ED_uvedit_live_unwrap_re_solve();
641                 
642                 DAG_id_tag_update(t->obedit->data, 0);
643         }
644 }
645
646 /* helper for recalcData() - for Movie Clip transforms */
647 static void recalcData_spaceclip(TransInfo *t)
648 {
649         SpaceClip *sc = t->sa->spacedata.first;
650
651         if (ED_space_clip_check_show_trackedit(sc)) {
652                 MovieClip *clip = ED_space_clip_get_clip(sc);
653                 ListBase *tracksbase = BKE_tracking_get_active_tracks(&clip->tracking);
654                 MovieTrackingTrack *track;
655                 int framenr = ED_space_clip_get_clip_frame_number(sc);
656
657                 flushTransTracking(t);
658
659                 track = tracksbase->first;
660                 while (track) {
661                         if (TRACK_VIEW_SELECTED(sc, track) && (track->flag & TRACK_LOCKED) == 0) {
662                                 MovieTrackingMarker *marker = BKE_tracking_marker_get(track, framenr);
663
664                                 if (t->mode == TFM_TRANSLATION) {
665                                         if (TRACK_AREA_SELECTED(track, TRACK_AREA_PAT))
666                                                 BKE_tracking_marker_clamp(marker, CLAMP_PAT_POS);
667                                         if (TRACK_AREA_SELECTED(track, TRACK_AREA_SEARCH))
668                                                 BKE_tracking_marker_clamp(marker, CLAMP_SEARCH_POS);
669                                 }
670                                 else if (t->mode == TFM_RESIZE) {
671                                         if (TRACK_AREA_SELECTED(track, TRACK_AREA_PAT))
672                                                 BKE_tracking_marker_clamp(marker, CLAMP_PAT_DIM);
673                                         if (TRACK_AREA_SELECTED(track, TRACK_AREA_SEARCH))
674                                                 BKE_tracking_marker_clamp(marker, CLAMP_SEARCH_DIM);
675                                 }
676                                 else if (t->mode == TFM_ROTATION) {
677                                         if (TRACK_AREA_SELECTED(track, TRACK_AREA_PAT))
678                                                 BKE_tracking_marker_clamp(marker, CLAMP_PAT_POS);
679                                 }
680                         }
681
682                         track = track->next;
683                 }
684
685                 DAG_id_tag_update(&clip->id, 0);
686         }
687         else if (t->options & CTX_MASK) {
688                 recalcData_mask_common(t);
689         }
690 }
691
692 /* helper for recalcData() - for object transforms, typically in the 3D view */
693 static void recalcData_objects(TransInfo *t)
694 {
695         Base *base = t->scene->basact;
696         
697         if (t->obedit) {
698                 if (ELEM(t->obedit->type, OB_CURVE, OB_SURF)) {
699                         Curve *cu = t->obedit->data;
700                         ListBase *nurbs = BKE_curve_editNurbs_get(cu);
701                         Nurb *nu = nurbs->first;
702                         
703                         if (t->state != TRANS_CANCEL) {
704                                 clipMirrorModifier(t, t->obedit);
705                                 applyProject(t);
706                         }
707                         
708                         DAG_id_tag_update(t->obedit->data, 0);  /* sets recalc flags */
709                                 
710                         if (t->state == TRANS_CANCEL) {
711                                 while (nu) {
712                                         BKE_nurb_handles_calc(nu); /* Cant do testhandlesNurb here, it messes up the h1 and h2 flags */
713                                         nu = nu->next;
714                                 }
715                         }
716                         else {
717                                 /* Normal updating */
718                                 while (nu) {
719                                         BKE_nurb_test2D(nu);
720                                         BKE_nurb_handles_calc(nu);
721                                         nu = nu->next;
722                                 }
723                         }
724                 }
725                 else if (t->obedit->type == OB_LATTICE) {
726                         Lattice *la = t->obedit->data;
727                         
728                         if (t->state != TRANS_CANCEL) {
729                                 applyProject(t);
730                         }
731                         
732                         DAG_id_tag_update(t->obedit->data, 0);  /* sets recalc flags */
733                         
734                         if (la->editlatt->latt->flag & LT_OUTSIDE) outside_lattice(la->editlatt->latt);
735                 }
736                 else if (t->obedit->type == OB_MESH) {
737                         BMEditMesh *em = BKE_editmesh_from_object(t->obedit);
738                         /* mirror modifier clipping? */
739                         if (t->state != TRANS_CANCEL) {
740                                 /* apply clipping after so we never project past the clip plane [#25423] */
741                                 applyProject(t);
742                                 clipMirrorModifier(t, t->obedit);
743                         }
744                         if ((t->options & CTX_NO_MIRROR) == 0 && (t->flag & T_MIRROR))
745                                 editbmesh_apply_to_mirror(t);
746                                 
747                         DAG_id_tag_update(t->obedit->data, 0);  /* sets recalc flags */
748                         
749                         EDBM_mesh_normals_update(em);
750                         BKE_editmesh_tessface_calc(em);
751                 }
752                 else if (t->obedit->type == OB_ARMATURE) { /* no recalc flag, does pose */
753                         bArmature *arm = t->obedit->data;
754                         ListBase *edbo = arm->edbo;
755                         EditBone *ebo;
756                         TransData *td = t->data;
757                         int i;
758                         
759                         if (t->state != TRANS_CANCEL) {
760                                 applyProject(t);
761                         }
762                         
763                         /* Ensure all bones are correctly adjusted */
764                         for (ebo = edbo->first; ebo; ebo = ebo->next) {
765                                 
766                                 if ((ebo->flag & BONE_CONNECTED) && ebo->parent) {
767                                         /* If this bone has a parent tip that has been moved */
768                                         if (ebo->parent->flag & BONE_TIPSEL) {
769                                                 copy_v3_v3(ebo->head, ebo->parent->tail);
770                                                 if (t->mode == TFM_BONE_ENVELOPE) ebo->rad_head = ebo->parent->rad_tail;
771                                         }
772                                         /* If this bone has a parent tip that has NOT been moved */
773                                         else {
774                                                 copy_v3_v3(ebo->parent->tail, ebo->head);
775                                                 if (t->mode == TFM_BONE_ENVELOPE) ebo->parent->rad_tail = ebo->rad_head;
776                                         }
777                                 }
778                                 
779                                 /* on extrude bones, oldlength==0.0f, so we scale radius of points */
780                                 ebo->length = len_v3v3(ebo->head, ebo->tail);
781                                 if (ebo->oldlength == 0.0f) {
782                                         ebo->rad_head = 0.25f * ebo->length;
783                                         ebo->rad_tail = 0.10f * ebo->length;
784                                         ebo->dist = 0.25f * ebo->length;
785                                         if (ebo->parent) {
786                                                 if (ebo->rad_head > ebo->parent->rad_tail)
787                                                         ebo->rad_head = ebo->parent->rad_tail;
788                                         }
789                                 }
790                                 else if (t->mode != TFM_BONE_ENVELOPE) {
791                                         /* if bones change length, lets do that for the deform distance as well */
792                                         ebo->dist *= ebo->length / ebo->oldlength;
793                                         ebo->rad_head *= ebo->length / ebo->oldlength;
794                                         ebo->rad_tail *= ebo->length / ebo->oldlength;
795                                         ebo->oldlength = ebo->length;
796                                 }
797                         }
798                         
799                         if (!ELEM3(t->mode, TFM_BONE_ROLL, TFM_BONE_ENVELOPE, TFM_BONESIZE)) {
800                                 /* fix roll */
801                                 for (i = 0; i < t->total; i++, td++) {
802                                         if (td->extra) {
803                                                 float vec[3], up_axis[3];
804                                                 float qrot[4];
805                                                 float roll;
806                                                 
807                                                 ebo = td->extra;
808
809                                                 if (t->state == TRANS_CANCEL) {
810                                                         /* restore roll */
811                                                         ebo->roll = td->ival;
812                                                 }
813                                                 else {
814                                                         copy_v3_v3(up_axis, td->axismtx[2]);
815
816                                                         sub_v3_v3v3(vec, ebo->tail, ebo->head);
817                                                         normalize_v3(vec);
818                                                         rotation_between_vecs_to_quat(qrot, td->axismtx[1], vec);
819                                                         mul_qt_v3(qrot, up_axis);
820
821                                                         /* roll has a tendency to flip in certain orientations - [#34283], [#33974] */
822                                                         roll = ED_rollBoneToVector(ebo, up_axis, false);
823                                                         ebo->roll = angle_compat_rad(roll, td->ival);
824                                                 }
825                                         }
826                                 }
827                         }
828                         
829                         if (arm->flag & ARM_MIRROR_EDIT)
830                                 transform_armature_mirror_update(t->obedit);
831                         
832                 }
833                 else {
834                         if (t->state != TRANS_CANCEL) {
835                                 applyProject(t);
836                         }
837                         DAG_id_tag_update(t->obedit->data, 0);  /* sets recalc flags */
838                 }
839         }
840         else if ((t->flag & T_POSE) && t->poseobj) {
841                 Object *ob = t->poseobj;
842                 bArmature *arm = ob->data;
843                 
844                 /* if animtimer is running, and the object already has animation data,
845                  * check if the auto-record feature means that we should record 'samples'
846                  * (i.e. uneditable animation values)
847                  *
848                  * context is needed for keying set poll() functions.
849                  */
850                 // TODO: autokeyframe calls need some setting to specify to add samples (FPoints) instead of keyframes?
851                 if ((t->animtimer) && (t->context) && IS_AUTOKEY_ON(t->scene)) {
852                         int targetless_ik = (t->flag & T_AUTOIK); // XXX this currently doesn't work, since flags aren't set yet!
853                         
854                         animrecord_check_state(t->scene, &ob->id, t->animtimer);
855                         autokeyframe_pose_cb_func(t->context, t->scene, (View3D *)t->view, ob, t->mode, targetless_ik);
856                 }
857                 
858                 /* old optimize trick... this enforces to bypass the depgraph */
859                 if (!(arm->flag & ARM_DELAYDEFORM)) {
860                         DAG_id_tag_update(&ob->id, OB_RECALC_DATA);  /* sets recalc flags */
861                         /* transformation of pose may affect IK tree, make sure it is rebuilt */
862                         BIK_clear_data(ob->pose);
863                 }
864                 else
865                         BKE_pose_where_is(t->scene, ob);
866         }
867         else if (base && (base->object->mode & OB_MODE_PARTICLE_EDIT) && PE_get_current(t->scene, base->object)) {
868                 if (t->state != TRANS_CANCEL) {
869                         applyProject(t);
870                 }
871                 flushTransParticles(t);
872         }
873         else {
874                 int i;
875                 
876                 if (t->state != TRANS_CANCEL) {
877                         applyProject(t);
878                 }
879                 
880                 for (i = 0; i < t->total; i++) {
881                         TransData *td = t->data + i;
882                         Object *ob = td->ob;
883                         
884                         if (td->flag & TD_NOACTION)
885                                 break;
886                         
887                         if (td->flag & TD_SKIP)
888                                 continue;
889                         
890                         /* if animtimer is running, and the object already has animation data,
891                          * check if the auto-record feature means that we should record 'samples'
892                          * (i.e. uneditable animation values)
893                          */
894                         // TODO: autokeyframe calls need some setting to specify to add samples (FPoints) instead of keyframes?
895                         if ((t->animtimer) && IS_AUTOKEY_ON(t->scene)) {
896                                 animrecord_check_state(t->scene, &ob->id, t->animtimer);
897                                 autokeyframe_ob_cb_func(t->context, t->scene, (View3D *)t->view, ob, t->mode);
898                         }
899                         
900                         /* sets recalc flags fully, instead of flushing existing ones 
901                          * otherwise proxies don't function correctly
902                          */
903                         DAG_id_tag_update(&ob->id, OB_RECALC_OB);
904
905                         if (t->flag & T_TEXTURE)
906                                 DAG_id_tag_update(&ob->id, OB_RECALC_DATA);
907                 }
908         }
909 }
910
911 /* helper for recalcData() - for sequencer transforms */
912 static void recalcData_sequencer(TransInfo *t)
913 {
914         TransData *td;
915         int a;
916         Sequence *seq_prev = NULL;
917
918         for (a = 0, td = t->data; a < t->total; a++, td++) {
919                 TransDataSeq *tdsq = (TransDataSeq *) td->extra;
920                 Sequence *seq = tdsq->seq;
921
922                 if (seq != seq_prev) {
923                         BKE_sequence_invalidate_dependent(t->scene, seq);
924                 }
925
926                 seq_prev = seq;
927         }
928
929         BKE_sequencer_preprocessed_cache_cleanup();
930
931         flushTransSeq(t);
932 }
933
934 /* called for updating while transform acts, once per redraw */
935 void recalcData(TransInfo *t)
936 {
937         /* if tests must match createTransData for correct updates */
938         if (t->options & CTX_TEXTURE) {
939                 recalcData_objects(t);
940         }
941         else if (t->options & CTX_EDGE) {
942                 recalcData_objects(t);
943         }
944         else if (t->spacetype == SPACE_IMAGE) {
945                 recalcData_image(t);
946         }
947         else if (t->spacetype == SPACE_ACTION) {
948                 recalcData_actedit(t);
949         }
950         else if (t->spacetype == SPACE_NLA) {
951                 recalcData_nla(t);
952         }
953         else if (t->spacetype == SPACE_SEQ) {
954                 recalcData_sequencer(t);
955         }
956         else if (t->spacetype == SPACE_IPO) {
957                 recalcData_graphedit(t);
958         }
959         else if (t->spacetype == SPACE_NODE) {
960                 flushTransNodes(t);
961         }
962         else if (t->spacetype == SPACE_CLIP) {
963                 recalcData_spaceclip(t);
964         }
965         else {
966                 recalcData_objects(t);
967         }
968 }
969
970 void drawLine(TransInfo *t, const float center[3], const float dir[3], char axis, short options)
971 {
972         float v1[3], v2[3], v3[3];
973         unsigned char col[3], col2[3];
974
975         if (t->spacetype == SPACE_VIEW3D) {
976                 View3D *v3d = t->view;
977                 
978                 glPushMatrix();
979                 
980                 //if (t->obedit) glLoadMatrixf(t->obedit->obmat);       // sets opengl viewing
981                 
982                 
983                 copy_v3_v3(v3, dir);
984                 mul_v3_fl(v3, v3d->far);
985                 
986                 sub_v3_v3v3(v2, center, v3);
987                 add_v3_v3v3(v1, center, v3);
988                 
989                 if (options & DRAWLIGHT) {
990                         col[0] = col[1] = col[2] = 220;
991                 }
992                 else {
993                         UI_GetThemeColor3ubv(TH_GRID, col);
994                 }
995                 UI_make_axis_color(col, col2, axis);
996                 glColor3ubv(col2);
997                 
998                 setlinestyle(0);
999                 glBegin(GL_LINE_STRIP);
1000                 glVertex3fv(v1);
1001                 glVertex3fv(v2);
1002                 glEnd();
1003                 
1004                 glPopMatrix();
1005         }
1006 }
1007
1008 /**
1009  * Free data before switching to another mode.
1010  */
1011 void resetTransModal(TransInfo *t)
1012 {
1013         if (t->mode == TFM_EDGE_SLIDE) {
1014                 freeEdgeSlideVerts(t);
1015         }
1016         else if (t->mode == TFM_VERT_SLIDE) {
1017                 freeVertSlideVerts(t);
1018         }
1019 }
1020
1021 void resetTransRestrictions(TransInfo *t)
1022 {
1023         t->flag &= ~T_ALL_RESTRICTIONS;
1024 }
1025
1026 static int initTransInfo_edit_pet_to_flag(const int proportional)
1027 {
1028         switch (proportional) {
1029                 case PROP_EDIT_ON:
1030                         return T_PROP_EDIT;
1031                 case PROP_EDIT_CONNECTED:
1032                         return T_PROP_EDIT | T_PROP_CONNECTED;
1033                 case PROP_EDIT_PROJECTED:
1034                         return T_PROP_EDIT | T_PROP_PROJECTED;
1035                 default:
1036                         return 0;
1037         }
1038 }
1039
1040 /**
1041  * Setup internal data, mouse, vectors
1042  *
1043  * \note \a op and \a event can be NULL
1044  */
1045 void initTransInfo(bContext *C, TransInfo *t, wmOperator *op, const wmEvent *event)
1046 {
1047         Scene *sce = CTX_data_scene(C);
1048         ToolSettings *ts = CTX_data_tool_settings(C);
1049         ARegion *ar = CTX_wm_region(C);
1050         ScrArea *sa = CTX_wm_area(C);
1051         Object *obedit = CTX_data_edit_object(C);
1052         PropertyRNA *prop;
1053         
1054         t->scene = sce;
1055         t->sa = sa;
1056         t->ar = ar;
1057         t->obedit = obedit;
1058         t->settings = ts;
1059         t->reports = op ? op->reports : NULL;
1060
1061         if (obedit) {
1062                 copy_m3_m4(t->obedit_mat, obedit->obmat);
1063                 normalize_m3(t->obedit_mat);
1064         }
1065
1066         t->data = NULL;
1067         t->ext = NULL;
1068         
1069         t->helpline = HLP_NONE;
1070         
1071         t->flag = 0;
1072         
1073         t->redraw = TREDRAW_HARD;  /* redraw first time */
1074         
1075         if (event) {
1076                 copy_v2_v2_int(t->imval, event->mval);
1077                 t->event_type = event->type;
1078         }
1079         else {
1080                 t->imval[0] = 0;
1081                 t->imval[1] = 0;
1082         }
1083         
1084         t->con.imval[0] = t->imval[0];
1085         t->con.imval[1] = t->imval[1];
1086         
1087         t->mval[0] = t->imval[0];
1088         t->mval[1] = t->imval[1];
1089         
1090         t->transform        = NULL;
1091         t->handleEvent      = NULL;
1092         
1093         t->total            = 0;
1094         
1095         t->val = 0.0f;
1096
1097         zero_v3(t->vec);
1098         zero_v3(t->center);
1099
1100         unit_m3(t->mat);
1101         
1102         /* if there's an event, we're modal */
1103         if (event) {
1104                 t->flag |= T_MODAL;
1105         }
1106
1107         /* Crease needs edge flag */
1108         if (ELEM(t->mode, TFM_CREASE, TFM_BWEIGHT)) {
1109                 t->options |= CTX_EDGE;
1110         }
1111
1112         t->remove_on_cancel = false;
1113
1114         if (op && (prop = RNA_struct_find_property(op->ptr, "remove_on_cancel")) && RNA_property_is_set(op->ptr, prop)) {
1115                 if (RNA_property_boolean_get(op->ptr, prop)) {
1116                         t->remove_on_cancel = true;
1117                 }
1118         }
1119
1120         /* Assign the space type, some exceptions for running in different mode */
1121         if (sa == NULL) {
1122                 /* background mode */
1123                 t->spacetype = SPACE_EMPTY;
1124         }
1125         else if ((ar == NULL) && (sa->spacetype == SPACE_VIEW3D)) {
1126                 /* running in the text editor */
1127                 t->spacetype = SPACE_EMPTY;
1128         }
1129         else {
1130                 /* normal operation */
1131                 t->spacetype = sa->spacetype;
1132         }
1133
1134
1135         if (t->spacetype == SPACE_VIEW3D) {
1136                 View3D *v3d = sa->spacedata.first;
1137                 bScreen *animscreen = ED_screen_animation_playing(CTX_wm_manager(C));
1138                 
1139                 t->view = v3d;
1140                 t->animtimer = (animscreen) ? animscreen->animtimer : NULL;
1141                 
1142                 /* turn manipulator off during transform */
1143                 // FIXME: but don't do this when USING the manipulator...
1144                 if (t->flag & T_MODAL) {
1145                         t->twtype = v3d->twtype;
1146                         v3d->twtype = 0;
1147                 }
1148
1149                 if (v3d->flag & V3D_ALIGN) t->flag |= T_V3D_ALIGN;
1150                 t->around = v3d->around;
1151                 
1152                 /* bend always uses the cursor */
1153                 if (t->mode == TFM_BEND) {
1154                         t->around = V3D_CURSOR;
1155                 }
1156
1157                 if (op && ((prop = RNA_struct_find_property(op->ptr, "constraint_orientation")) &&
1158                            RNA_property_is_set(op->ptr, prop)))
1159                 {
1160                         t->current_orientation = RNA_property_enum_get(op->ptr, prop);
1161
1162                         if (t->current_orientation >= V3D_MANIP_CUSTOM + BIF_countTransformOrientation(C)) {
1163                                 t->current_orientation = V3D_MANIP_GLOBAL;
1164                         }
1165                 }
1166                 else {
1167                         t->current_orientation = v3d->twmode;
1168                 }
1169
1170                 /* exceptional case */
1171                 if (t->around == V3D_LOCAL && (t->settings->selectmode & SCE_SELECT_FACE)) {
1172                         if (ELEM3(t->mode, TFM_ROTATION, TFM_RESIZE, TFM_TRACKBALL)) {
1173                                 t->options |= CTX_NO_PET;
1174                         }
1175                 }
1176
1177                 /* initialize UV transform from */
1178                 if (op && ((prop = RNA_struct_find_property(op->ptr, "correct_uv")))) {
1179                         if (RNA_property_is_set(op->ptr, prop)) {
1180                                 if (RNA_property_boolean_get(op->ptr, prop)) {
1181                                         t->settings->uvcalc_flag |= UVCALC_TRANSFORM_CORRECT;
1182                                 }
1183                                 else {
1184                                         t->settings->uvcalc_flag &= ~UVCALC_TRANSFORM_CORRECT;
1185                                 }
1186                         }
1187                         else {
1188                                 RNA_property_boolean_set(op->ptr, prop, t->settings->uvcalc_flag & UVCALC_TRANSFORM_CORRECT);
1189                         }
1190                 }
1191
1192         }
1193         else if (t->spacetype == SPACE_IMAGE) {
1194                 SpaceImage *sima = sa->spacedata.first;
1195                 // XXX for now, get View2D from the active region
1196                 t->view = &ar->v2d;
1197                 t->around = sima->around;
1198
1199                 if (ED_space_image_show_uvedit(sima, t->obedit)) {
1200                         /* UV transform */
1201                 }
1202                 else if (sima->mode == SI_MODE_MASK) {
1203                         t->options |= CTX_MASK;
1204                 }
1205                 else {
1206                         /* image not in uv edit, nor in mask mode, can happen for some tools */
1207                 }
1208         }
1209         else if (t->spacetype == SPACE_NODE) {
1210                 // XXX for now, get View2D from the active region
1211                 t->view = &ar->v2d;
1212                 t->around = V3D_CENTER;
1213         }
1214         else if (t->spacetype == SPACE_IPO) {
1215                 SpaceIpo *sipo = sa->spacedata.first;
1216                 t->view = &ar->v2d;
1217                 t->around = sipo->around;
1218         }
1219         else if (t->spacetype == SPACE_CLIP) {
1220                 SpaceClip *sclip = sa->spacedata.first;
1221                 t->view = &ar->v2d;
1222                 t->around = sclip->around;
1223
1224                 if (ED_space_clip_check_show_trackedit(sclip))
1225                         t->options |= CTX_MOVIECLIP;
1226                 else if (ED_space_clip_check_show_maskedit(sclip))
1227                         t->options |= CTX_MASK;
1228         }
1229         else {
1230                 if (ar) {
1231                         // XXX for now, get View2D  from the active region
1232                         t->view = &ar->v2d;
1233                         // XXX for now, the center point is the midpoint of the data
1234                 }
1235                 else {
1236                         t->view = NULL;
1237                 }
1238                 t->around = V3D_CENTER;
1239         }
1240         
1241         if (op && ((prop = RNA_struct_find_property(op->ptr, "release_confirm")) &&
1242                    RNA_property_is_set(op->ptr, prop)))
1243         {
1244                 if (RNA_property_boolean_get(op->ptr, prop)) {
1245                         t->flag |= T_RELEASE_CONFIRM;
1246                 }
1247         }
1248         else {
1249                 if (U.flag & USER_RELEASECONFIRM) {
1250                         t->flag |= T_RELEASE_CONFIRM;
1251                 }
1252         }
1253
1254         if (op && ((prop = RNA_struct_find_property(op->ptr, "mirror")) &&
1255                    RNA_property_is_set(op->ptr, prop)))
1256         {
1257                 if (RNA_property_boolean_get(op->ptr, prop)) {
1258                         t->flag |= T_MIRROR;
1259                         t->mirror = 1;
1260                 }
1261         }
1262         // Need stuff to take it from edit mesh or whatnot here
1263         else if (t->spacetype == SPACE_VIEW3D) {
1264                 if (t->obedit && t->obedit->type == OB_MESH && (((Mesh *)t->obedit->data)->editflag & ME_EDIT_MIRROR_X)) {
1265                         t->flag |= T_MIRROR;
1266                         t->mirror = 1;
1267                 }
1268         }
1269         
1270         /* setting PET flag only if property exist in operator. Otherwise, assume it's not supported */
1271         if (op && (prop = RNA_struct_find_property(op->ptr, "proportional"))) {
1272                 if (RNA_property_is_set(op->ptr, prop)) {
1273                         t->flag |= initTransInfo_edit_pet_to_flag(RNA_property_enum_get(op->ptr, prop));
1274                 }
1275                 else {
1276                         /* use settings from scene only if modal */
1277                         if (t->flag & T_MODAL) {
1278                                 if ((t->options & CTX_NO_PET) == 0) {
1279                                         if (t->obedit) {
1280                                                 t->flag |= initTransInfo_edit_pet_to_flag(ts->proportional);
1281                                         }
1282                                         else if (t->options & CTX_MASK) {
1283                                                 if (ts->proportional_mask) {
1284                                                         t->flag |= T_PROP_EDIT;
1285
1286                                                         if (ts->proportional == PROP_EDIT_CONNECTED) {
1287                                                                 t->flag |= T_PROP_CONNECTED;
1288                                                         }
1289                                                 }
1290                                         }
1291                                         else if (t->obedit == NULL && ts->proportional_objects) {
1292                                                 t->flag |= T_PROP_EDIT;
1293                                         }
1294                                 }
1295                         }
1296                 }
1297                 
1298                 if (op && ((prop = RNA_struct_find_property(op->ptr, "proportional_size")) &&
1299                            RNA_property_is_set(op->ptr, prop)))
1300                 {
1301                         t->prop_size = RNA_property_float_get(op->ptr, prop);
1302                 }
1303                 else {
1304                         t->prop_size = ts->proportional_size;
1305                 }
1306                 
1307                 
1308                 /* TRANSFORM_FIX_ME rna restrictions */
1309                 if (t->prop_size <= 0.00001f) {
1310                         printf("Proportional size (%f) under 0.00001, resetting to 1!\n", t->prop_size);
1311                         t->prop_size = 1.0f;
1312                 }
1313                 
1314                 if (op && ((prop = RNA_struct_find_property(op->ptr, "proportional_edit_falloff")) &&
1315                            RNA_property_is_set(op->ptr, prop)))
1316                 {
1317                         t->prop_mode = RNA_property_enum_get(op->ptr, prop);
1318                 }
1319                 else {
1320                         t->prop_mode = ts->prop_mode;
1321                 }
1322         }
1323         else { /* add not pet option to context when not available */
1324                 t->options |= CTX_NO_PET;
1325         }
1326         
1327         // Mirror is not supported with PET, turn it off.
1328 #if 0
1329         if (t->flag & T_PROP_EDIT) {
1330                 t->flag &= ~T_MIRROR;
1331         }
1332 #endif
1333
1334         setTransformViewMatrices(t);
1335         initNumInput(&t->num);
1336 }
1337
1338 /* Here I would suggest only TransInfo related issues, like free data & reset vars. Not redraws */
1339 void postTrans(bContext *C, TransInfo *t)
1340 {
1341         TransData *td;
1342         
1343         if (t->draw_handle_view)
1344                 ED_region_draw_cb_exit(t->ar->type, t->draw_handle_view);
1345         if (t->draw_handle_apply)
1346                 ED_region_draw_cb_exit(t->ar->type, t->draw_handle_apply);
1347         if (t->draw_handle_pixel)
1348                 ED_region_draw_cb_exit(t->ar->type, t->draw_handle_pixel);
1349         if (t->draw_handle_cursor)
1350                 WM_paint_cursor_end(CTX_wm_manager(C), t->draw_handle_cursor);
1351
1352         if (t->customFree) {
1353                 /* Can take over freeing t->data and data2d etc... */
1354                 t->customFree(t);
1355                 BLI_assert(t->customData == NULL);
1356         }
1357         else if ((t->customData != NULL) && (t->flag & T_FREE_CUSTOMDATA)) {
1358                 MEM_freeN(t->customData);
1359                 t->customData = NULL;
1360         }
1361
1362         /* postTrans can be called when nothing is selected, so data is NULL already */
1363         if (t->data) {
1364                 
1365                 /* free data malloced per trans-data */
1366                 if ((t->obedit && ELEM(t->obedit->type, OB_CURVE, OB_SURF)) ||
1367                     (t->spacetype == SPACE_IPO))
1368                 {
1369                         int a;
1370                         for (a = 0, td = t->data; a < t->total; a++, td++) {
1371                                 if (td->flag & TD_BEZTRIPLE) {
1372                                         MEM_freeN(td->hdata);
1373                                 }
1374                         }
1375                 }
1376                 MEM_freeN(t->data);
1377         }
1378         
1379         BLI_freelistN(&t->tsnap.points);
1380
1381         if (t->ext) MEM_freeN(t->ext);
1382         if (t->data2d) {
1383                 MEM_freeN(t->data2d);
1384                 t->data2d = NULL;
1385         }
1386         
1387         if (t->spacetype == SPACE_IMAGE) {
1388                 if (t->options & CTX_MASK) {
1389                         /* pass */
1390                 }
1391                 else {
1392                         SpaceImage *sima = t->sa->spacedata.first;
1393                         if (sima->flag & SI_LIVE_UNWRAP)
1394                                 ED_uvedit_live_unwrap_end(t->state == TRANS_CANCEL);
1395                 }
1396         }
1397         else if (t->spacetype == SPACE_VIEW3D) {
1398                 View3D *v3d = t->sa->spacedata.first;
1399                 /* restore manipulator */
1400                 if (t->flag & T_MODAL) {
1401                         v3d->twtype = t->twtype;
1402                 }
1403         }
1404         
1405         if (t->mouse.data) {
1406                 MEM_freeN(t->mouse.data);
1407         }
1408 }
1409
1410 void applyTransObjects(TransInfo *t)
1411 {
1412         TransData *td;
1413         
1414         for (td = t->data; td < t->data + t->total; td++) {
1415                 copy_v3_v3(td->iloc, td->loc);
1416                 if (td->ext->rot) {
1417                         copy_v3_v3(td->ext->irot, td->ext->rot);
1418                 }
1419                 if (td->ext->size) {
1420                         copy_v3_v3(td->ext->isize, td->ext->size);
1421                 }
1422         }
1423         recalcData(t);
1424 }
1425
1426 static void restoreElement(TransData *td)
1427 {
1428         /* TransData for crease has no loc */
1429         if (td->loc) {
1430                 copy_v3_v3(td->loc, td->iloc);
1431         }
1432         if (td->val) {
1433                 *td->val = td->ival;
1434         }
1435
1436         if (td->ext && (td->flag & TD_NO_EXT) == 0) {
1437                 if (td->ext->rot) {
1438                         copy_v3_v3(td->ext->rot, td->ext->irot);
1439                 }
1440                 if (td->ext->rotAngle) {
1441                         *td->ext->rotAngle = td->ext->irotAngle;
1442                 }
1443                 if (td->ext->rotAxis) {
1444                         copy_v3_v3(td->ext->rotAxis, td->ext->irotAxis);
1445                 }
1446                 /* XXX, drotAngle & drotAxis not used yet */
1447                 if (td->ext->size) {
1448                         copy_v3_v3(td->ext->size, td->ext->isize);
1449                 }
1450                 if (td->ext->quat) {
1451                         copy_qt_qt(td->ext->quat, td->ext->iquat);
1452                 }
1453         }
1454         
1455         if (td->flag & TD_BEZTRIPLE) {
1456                 *(td->hdata->h1) = td->hdata->ih1;
1457                 *(td->hdata->h2) = td->hdata->ih2;
1458         }
1459 }
1460
1461 void restoreTransObjects(TransInfo *t)
1462 {
1463         TransData *td;
1464         TransData2D *td2d;
1465
1466         for (td = t->data; td < t->data + t->total; td++) {
1467                 restoreElement(td);
1468         }
1469         
1470         for (td2d = t->data2d; t->data2d && td2d < t->data2d + t->total; td2d++) {
1471                 if (td2d->h1) {
1472                         td2d->h1[0] = td2d->ih1[0];
1473                         td2d->h1[1] = td2d->ih1[1];
1474                 }
1475                 if (td2d->h2) {
1476                         td2d->h2[0] = td2d->ih2[0];
1477                         td2d->h2[1] = td2d->ih2[1];
1478                 }
1479         }
1480
1481         unit_m3(t->mat);
1482         
1483         recalcData(t);
1484 }
1485
1486 void calculateCenter2D(TransInfo *t)
1487 {
1488         if (t->flag & (T_EDIT | T_POSE)) {
1489                 Object *ob = t->obedit ? t->obedit : t->poseobj;
1490                 float vec[3];
1491                 
1492                 copy_v3_v3(vec, t->center);
1493                 mul_m4_v3(ob->obmat, vec);
1494                 projectFloatView(t, vec, t->center2d);
1495         }
1496         else {
1497                 projectFloatView(t, t->center, t->center2d);
1498         }
1499 }
1500
1501 void calculateCenterCursor(TransInfo *t)
1502 {
1503         const float *cursor;
1504         
1505         cursor = ED_view3d_cursor3d_get(t->scene, t->view);
1506         copy_v3_v3(t->center, cursor);
1507         
1508         /* If edit or pose mode, move cursor in local space */
1509         if (t->flag & (T_EDIT | T_POSE)) {
1510                 Object *ob = t->obedit ? t->obedit : t->poseobj;
1511                 float mat[3][3], imat[3][3];
1512                 
1513                 sub_v3_v3v3(t->center, t->center, ob->obmat[3]);
1514                 copy_m3_m4(mat, ob->obmat);
1515                 invert_m3_m3(imat, mat);
1516                 mul_m3_v3(imat, t->center);
1517         }
1518         
1519         calculateCenter2D(t);
1520 }
1521
1522 void calculateCenterCursor2D(TransInfo *t)
1523 {
1524         float aspx = 1.0, aspy = 1.0;
1525         float *cursor = NULL;
1526         
1527         if (t->spacetype == SPACE_IMAGE) {
1528                 SpaceImage *sima = (SpaceImage *)t->sa->spacedata.first;
1529                 if (t->options & CTX_MASK) {
1530                         ED_space_image_get_aspect(sima, &aspx, &aspy);
1531                 }
1532                 else {
1533                         ED_space_image_get_uv_aspect(sima, &aspx, &aspy);
1534                 }
1535                 cursor = sima->cursor;
1536         }
1537         else if (t->spacetype == SPACE_CLIP) {
1538                 SpaceClip *space_clip = (SpaceClip *) t->sa->spacedata.first;
1539                 if (t->options & CTX_MOVIECLIP) {
1540                         ED_space_clip_get_aspect_dimension_aware(space_clip, &aspx, &aspy);
1541                 }
1542                 else {
1543                         ED_space_clip_get_aspect(space_clip, &aspx, &aspy);
1544                 }
1545                 cursor = space_clip->cursor;
1546         }
1547         
1548         if (cursor) {
1549                 if (t->options & CTX_MASK) {
1550                         float co[2];
1551                         float frame_size[2];
1552
1553                         if (t->spacetype == SPACE_IMAGE) {
1554                                 SpaceImage *sima = (SpaceImage *)t->sa->spacedata.first;
1555                                 ED_space_image_get_size_fl(sima, frame_size);
1556                                 BKE_mask_coord_from_frame(co, cursor, frame_size);
1557                                 ED_space_image_get_aspect(sima, &aspx, &aspy);
1558                         }
1559                         else if (t->spacetype == SPACE_CLIP) {
1560                                 SpaceClip *space_clip = (SpaceClip *) t->sa->spacedata.first;
1561                                 ED_space_clip_get_size_fl(space_clip, frame_size);
1562                                 BKE_mask_coord_from_frame(co, cursor, frame_size);
1563                                 ED_space_clip_get_aspect(space_clip, &aspx, &aspy);
1564                         }
1565                         else {
1566                                 BLI_assert(!"Shall not happen");
1567                         }
1568
1569                         t->center[0] = co[0] * aspx;
1570                         t->center[1] = co[1] * aspy;
1571                 }
1572                 else {
1573                         t->center[0] = cursor[0] * aspx;
1574                         t->center[1] = cursor[1] * aspy;
1575                 }
1576         }
1577         
1578         calculateCenter2D(t);
1579 }
1580
1581 static void calculateCenterCursorGraph2D(TransInfo *t)
1582 {
1583         SpaceIpo *sipo = (SpaceIpo *)t->sa->spacedata.first;
1584         Scene *scene = t->scene;
1585         
1586         /* cursor is combination of current frame, and graph-editor cursor value */
1587         t->center[0] = (float)(scene->r.cfra);
1588         t->center[1] = sipo->cursorVal;
1589         
1590         calculateCenter2D(t);
1591 }
1592
1593 void calculateCenterMedian(TransInfo *t)
1594 {
1595         float partial[3] = {0.0f, 0.0f, 0.0f};
1596         int total = 0;
1597         int i;
1598         
1599         for (i = 0; i < t->total; i++) {
1600                 if (t->data[i].flag & TD_SELECTED) {
1601                         if (!(t->data[i].flag & TD_NOCENTER)) {
1602                                 add_v3_v3(partial, t->data[i].center);
1603                                 total++;
1604                         }
1605                 }
1606         }
1607         if (i)
1608                 mul_v3_fl(partial, 1.0f / total);
1609         copy_v3_v3(t->center, partial);
1610         
1611         calculateCenter2D(t);
1612 }
1613
1614 void calculateCenterBound(TransInfo *t)
1615 {
1616         float max[3];
1617         float min[3];
1618         int i;
1619         for (i = 0; i < t->total; i++) {
1620                 if (i) {
1621                         if (t->data[i].flag & TD_SELECTED) {
1622                                 if (!(t->data[i].flag & TD_NOCENTER))
1623                                         minmax_v3v3_v3(min, max, t->data[i].center);
1624                         }
1625                 }
1626                 else {
1627                         copy_v3_v3(max, t->data[i].center);
1628                         copy_v3_v3(min, t->data[i].center);
1629                 }
1630         }
1631         mid_v3_v3v3(t->center, min, max);
1632
1633         calculateCenter2D(t);
1634 }
1635
1636 void calculateCenter(TransInfo *t)
1637 {
1638         switch (t->around) {
1639                 case V3D_CENTER:
1640                         calculateCenterBound(t);
1641                         break;
1642                 case V3D_CENTROID:
1643                         calculateCenterMedian(t);
1644                         break;
1645                 case V3D_CURSOR:
1646                         if (ELEM(t->spacetype, SPACE_IMAGE, SPACE_CLIP))
1647                                 calculateCenterCursor2D(t);
1648                         else if (t->spacetype == SPACE_IPO)
1649                                 calculateCenterCursorGraph2D(t);
1650                         else
1651                                 calculateCenterCursor(t);
1652                         break;
1653                 case V3D_LOCAL:
1654                         /* Individual element center uses median center for helpline and such */
1655                         calculateCenterMedian(t);
1656                         break;
1657                 case V3D_ACTIVE:
1658                 {
1659                         /* set median, and if if if... do object center */
1660                 
1661                         /* EDIT MODE ACTIVE EDITMODE ELEMENT */
1662
1663                         if (t->obedit) {
1664                                 if (t->obedit && t->obedit->type == OB_MESH) {
1665                                         BMEditSelection ese;
1666                                         BMEditMesh *em = BKE_editmesh_from_object(t->obedit);
1667
1668                                         if (BM_select_history_active_get(em->bm, &ese)) {
1669                                                 BM_editselection_center(&ese, t->center);
1670                                                 calculateCenter2D(t);
1671                                                 break;
1672                                         }
1673                                 }
1674                                 else if (ELEM(t->obedit->type, OB_CURVE, OB_SURF)) {
1675                                         float center[3];
1676                                         Curve *cu = (Curve *)t->obedit->data;
1677
1678                                         if (ED_curve_active_center(cu, center)) {
1679                                                 copy_v3_v3(t->center, center);
1680                                                 calculateCenter2D(t);
1681                                                 break;
1682                                         }
1683                                 }
1684                                 else if (t->obedit && t->obedit->type == OB_LATTICE) {
1685                                         BPoint *actbp = BKE_lattice_active_point_get(t->obedit->data);
1686
1687                                         if (actbp) {
1688                                                 copy_v3_v3(t->center, actbp->vec);
1689                                                 calculateCenter2D(t);
1690                                                 break;
1691                                         }
1692                                 }
1693                         } /* END EDIT MODE ACTIVE ELEMENT */
1694
1695                         calculateCenterMedian(t);
1696                         if ((t->flag & (T_EDIT | T_POSE)) == 0) {
1697                                 Scene *scene = t->scene;
1698                                 Object *ob = OBACT;
1699                                 if (ob) {
1700                                         copy_v3_v3(t->center, ob->obmat[3]);
1701                                         projectFloatView(t, t->center, t->center2d);
1702                                 }
1703                         }
1704                         break;
1705                 }
1706         }
1707         
1708         /* setting constraint center */
1709         copy_v3_v3(t->con.center, t->center);
1710         if (t->flag & (T_EDIT | T_POSE)) {
1711                 Object *ob = t->obedit ? t->obedit : t->poseobj;
1712                 mul_m4_v3(ob->obmat, t->con.center);
1713         }
1714         
1715         /* for panning from cameraview */
1716         if (t->flag & T_OBJECT) {
1717                 if (t->spacetype == SPACE_VIEW3D && t->ar && t->ar->regiontype == RGN_TYPE_WINDOW) {
1718                         
1719                         if (t->flag & T_CAMERA) {
1720                                 float axis[3];
1721                                 /* persinv is nasty, use viewinv instead, always right */
1722                                 copy_v3_v3(axis, t->viewinv[2]);
1723                                 normalize_v3(axis);
1724                                 
1725                                 /* 6.0 = 6 grid units */
1726                                 axis[0] = t->center[0] - 6.0f * axis[0];
1727                                 axis[1] = t->center[1] - 6.0f * axis[1];
1728                                 axis[2] = t->center[2] - 6.0f * axis[2];
1729                                 
1730                                 projectFloatView(t, axis, t->center2d);
1731                                 
1732                                 /* rotate only needs correct 2d center, grab needs ED_view3d_calc_zfac() value */
1733                                 if (t->mode == TFM_TRANSLATION) {
1734                                         copy_v3_v3(t->center, axis);
1735                                         copy_v3_v3(t->con.center, t->center);
1736                                 }
1737                         }
1738                 }
1739         }
1740         
1741         if (t->spacetype == SPACE_VIEW3D) {
1742                 /* ED_view3d_calc_zfac() defines a factor for perspective depth correction, used in ED_view3d_win_to_delta() */
1743                 float vec[3];
1744                 if (t->flag & (T_EDIT | T_POSE)) {
1745                         Object *ob = t->obedit ? t->obedit : t->poseobj;
1746                         mul_v3_m4v3(vec, ob->obmat, t->center);
1747                 }
1748                 else {
1749                         copy_v3_v3(vec, t->center);
1750                 }
1751
1752                 /* zfac is only used convertViewVec only in cases operator was invoked in RGN_TYPE_WINDOW
1753                  * and never used in other cases.
1754                  *
1755                  * We need special case here as well, since ED_view3d_calc_zfac will crahs when called
1756                  * for a region different from RGN_TYPE_WINDOW.
1757                  */
1758                 if (t->ar->regiontype == RGN_TYPE_WINDOW) {
1759                         t->zfac = ED_view3d_calc_zfac(t->ar->regiondata, vec, NULL);
1760                 }
1761                 else {
1762                         t->zfac = 0.0f;
1763                 }
1764         }
1765 }
1766
1767 void calculatePropRatio(TransInfo *t)
1768 {
1769         TransData *td = t->data;
1770         int i;
1771         float dist;
1772         short connected = t->flag & T_PROP_CONNECTED;
1773
1774         if (t->flag & T_PROP_EDIT) {
1775                 for (i = 0; i < t->total; i++, td++) {
1776                         if (td->flag & TD_SELECTED) {
1777                                 td->factor = 1.0f;
1778                         }
1779                         else if (t->flag & T_MIRROR && td->loc[0] * t->mirror < -0.00001f) {
1780                                 td->flag |= TD_SKIP;
1781                                 td->factor = 0.0f;
1782                                 restoreElement(td);
1783                         }
1784                         else if ((connected && (td->flag & TD_NOTCONNECTED || td->dist > t->prop_size)) ||
1785                                  (connected == 0 && td->rdist > t->prop_size))
1786                         {
1787                                 /*
1788                                  * The elements are sorted according to their dist member in the array,
1789                                  * that means we can stop when it finds one element outside of the propsize.
1790                                  * do not set 'td->flag |= TD_NOACTION', the prop circle is being changed.
1791                                  */
1792                                 
1793                                 td->factor = 0.0f;
1794                                 restoreElement(td);
1795                         }
1796                         else {
1797                                 /* Use rdist for falloff calculations, it is the real distance */
1798                                 td->flag &= ~TD_NOACTION;
1799                                 
1800                                 if (connected)
1801                                         dist = (t->prop_size - td->dist) / t->prop_size;
1802                                 else
1803                                         dist = (t->prop_size - td->rdist) / t->prop_size;
1804
1805                                 /*
1806                                  * Clamp to positive numbers.
1807                                  * Certain corner cases with connectivity and individual centers
1808                                  * can give values of rdist larger than propsize.
1809                                  */
1810                                 if (dist < 0.0f)
1811                                         dist = 0.0f;
1812                                 
1813                                 switch (t->prop_mode) {
1814                                         case PROP_SHARP:
1815                                                 td->factor = dist * dist;
1816                                                 break;
1817                                         case PROP_SMOOTH:
1818                                                 td->factor = 3.0f * dist * dist - 2.0f * dist * dist * dist;
1819                                                 break;
1820                                         case PROP_ROOT:
1821                                                 td->factor = sqrtf(dist);
1822                                                 break;
1823                                         case PROP_LIN:
1824                                                 td->factor = dist;
1825                                                 break;
1826                                         case PROP_CONST:
1827                                                 td->factor = 1.0f;
1828                                                 break;
1829                                         case PROP_SPHERE:
1830                                                 td->factor = sqrtf(2 * dist - dist * dist);
1831                                                 break;
1832                                         case PROP_RANDOM:
1833                                                 td->factor = BLI_frand() * dist;
1834                                                 break;
1835                                         default:
1836                                                 td->factor = 1;
1837                                                 break;
1838                                 }
1839                         }
1840                 }
1841                 switch (t->prop_mode) {
1842                         case PROP_SHARP:
1843                                 strcpy(t->proptext, IFACE_("(Sharp)"));
1844                                 break;
1845                         case PROP_SMOOTH:
1846                                 strcpy(t->proptext, IFACE_("(Smooth)"));
1847                                 break;
1848                         case PROP_ROOT:
1849                                 strcpy(t->proptext, IFACE_("(Root)"));
1850                                 break;
1851                         case PROP_LIN:
1852                                 strcpy(t->proptext, IFACE_("(Linear)"));
1853                                 break;
1854                         case PROP_CONST:
1855                                 strcpy(t->proptext, IFACE_("(Constant)"));
1856                                 break;
1857                         case PROP_SPHERE:
1858                                 strcpy(t->proptext, IFACE_("(Sphere)"));
1859                                 break;
1860                         case PROP_RANDOM:
1861                                 strcpy(t->proptext, IFACE_("(Random)"));
1862                                 break;
1863                         default:
1864                                 t->proptext[0] = '\0';
1865                                 break;
1866                 }
1867         }
1868         else {
1869                 for (i = 0; i < t->total; i++, td++) {
1870                         td->factor = 1.0;
1871                 }
1872                 t->proptext[0] = '\0';
1873         }
1874 }