Sculpt Branch:
[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., 59 Temple Place - Suite 330, Boston, MA  02111-1307, 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_action_types.h"
39 #include "DNA_armature_types.h"
40 #include "DNA_constraint_types.h"
41 #include "DNA_curve_types.h"
42 #include "DNA_lattice_types.h"
43 #include "DNA_mesh_types.h"
44 #include "DNA_modifier_types.h"
45 #include "DNA_nla_types.h"
46 #include "DNA_node_types.h"
47 #include "DNA_object_types.h"
48 #include "DNA_object_force.h"
49 #include "DNA_particle_types.h"
50 #include "DNA_screen_types.h"
51 #include "DNA_space_types.h"
52 #include "DNA_scene_types.h"
53 #include "DNA_userdef_types.h"
54 #include "DNA_view3d_types.h"
55 #include "DNA_windowmanager_types.h"
56
57 #include "RNA_access.h"
58
59 //#include "BIF_screen.h"
60 //#include "BIF_mywindow.h"
61 #include "BIF_gl.h"
62 #include "BIF_glutil.h"
63 //#include "BIF_editmesh.h"
64 //#include "BIF_editsima.h"
65 //#include "BIF_editparticle.h"
66 //#include "BIF_meshtools.h"
67
68 #include "BKE_animsys.h"
69 #include "BKE_action.h"
70 #include "BKE_anim.h"
71 #include "BKE_armature.h"
72 #include "BKE_cloth.h"
73 #include "BKE_curve.h"
74 #include "BKE_depsgraph.h"
75 #include "BKE_displist.h"
76 #include "BKE_depsgraph.h"
77 #include "BKE_fcurve.h"
78 #include "BKE_global.h"
79 #include "BKE_group.h"
80 #include "BKE_lattice.h"
81 #include "BKE_key.h"
82 #include "BKE_mesh.h"
83 #include "BKE_modifier.h"
84 #include "BKE_nla.h"
85 #include "BKE_object.h"
86 #include "BKE_utildefines.h"
87 #include "BKE_context.h"
88
89 #include "ED_anim_api.h"
90 #include "ED_armature.h"
91 #include "ED_image.h"
92 #include "ED_keyframing.h"
93 #include "ED_markers.h"
94 #include "ED_mesh.h"
95 #include "ED_particle.h"
96 #include "ED_screen_types.h"
97 #include "ED_space_api.h"
98 #include "ED_uvedit.h"
99 #include "ED_view3d.h"
100
101 //#include "BDR_unwrapper.h"
102
103 #include "BLI_math.h"
104 #include "BLI_blenlib.h"
105 #include "BLI_editVert.h"
106 #include "BLI_rand.h"
107
108 #include "RNA_access.h"
109
110 #include "WM_types.h"
111 #include "WM_api.h"
112
113 #include "UI_resources.h"
114
115 //#include "blendef.h"
116 //
117 //#include "mydevice.h"
118
119 #include "transform.h"
120
121 extern ListBase editelems;
122
123 /* ************************** Functions *************************** */
124
125 void getViewVector(TransInfo *t, float coord[3], float vec[3])
126 {
127         if (t->persp != RV3D_ORTHO)
128         {
129                 float p1[4], p2[4];
130                 
131                 VECCOPY(p1, coord);
132                 p1[3] = 1.0f;
133                 VECCOPY(p2, p1);
134                 p2[3] = 1.0f;
135                 mul_m4_v4(t->viewmat, p2);
136                 
137                 p2[0] = 2.0f * p2[0];
138                 p2[1] = 2.0f * p2[1];
139                 p2[2] = 2.0f * p2[2];
140                 
141                 mul_m4_v4(t->viewinv, p2);
142                 
143                 sub_v3_v3v3(vec, p1, p2);
144         }
145         else {
146                 VECCOPY(vec, t->viewinv[2]);
147         }
148         normalize_v3(vec);
149 }
150
151 /* ************************** GENERICS **************************** */
152
153 static void clipMirrorModifier(TransInfo *t, Object *ob)
154 {
155         ModifierData *md= ob->modifiers.first;
156         float tolerance[3] = {0.0f, 0.0f, 0.0f};
157         int axis = 0;
158         
159         for (; md; md=md->next) {
160                 if (md->type==eModifierType_Mirror) {
161                         MirrorModifierData *mmd = (MirrorModifierData*) md;
162                         
163                         if(mmd->flag & MOD_MIR_CLIPPING) {
164                                 axis = 0;
165                                 if(mmd->flag & MOD_MIR_AXIS_X) {
166                                         axis |= 1;
167                                         tolerance[0] = mmd->tolerance;
168                                 }
169                                 if(mmd->flag & MOD_MIR_AXIS_Y) {
170                                         axis |= 2;
171                                         tolerance[1] = mmd->tolerance;
172                                 }
173                                 if(mmd->flag & MOD_MIR_AXIS_Z) {
174                                         axis |= 4;
175                                         tolerance[2] = mmd->tolerance;
176                                 }
177                                 if (axis) {
178                                         float mtx[4][4], imtx[4][4];
179                                         int i;
180                                         TransData *td = t->data;
181                                         
182                                         if (mmd->mirror_ob) {
183                                                 float obinv[4][4];
184                                                 
185                                                 invert_m4_m4(obinv, mmd->mirror_ob->obmat);
186                                                 mul_m4_m4m4(mtx, ob->obmat, obinv);
187                                                 invert_m4_m4(imtx, mtx);
188                                         }
189                                         
190                                         for(i = 0 ; i < t->total; i++, td++) {
191                                                 int clip;
192                                                 float loc[3], iloc[3];
193                                                 
194                                                 if (td->flag & TD_NOACTION)
195                                                         break;
196                                                 if (td->loc==NULL)
197                                                         break;
198                                                 
199                                                 if (td->flag & TD_SKIP)
200                                                         continue;
201                                                 
202                                                 copy_v3_v3(loc,  td->loc);
203                                                 copy_v3_v3(iloc, td->iloc);
204                                                 
205                                                 if (mmd->mirror_ob) {
206                                                         mul_v3_m4v3(loc, mtx, loc);
207                                                         mul_v3_m4v3(iloc, mtx, iloc);
208                                                 }
209                                                 
210                                                 clip = 0;
211                                                 if(axis & 1) {
212                                                         if(fabs(iloc[0])<=tolerance[0] ||
213                                                            loc[0]*iloc[0]<0.0f) {
214                                                                 loc[0]= 0.0f;
215                                                                 clip = 1;
216                                                         }
217                                                 }
218                                                 
219                                                 if(axis & 2) {
220                                                         if(fabs(iloc[1])<=tolerance[1] ||
221                                                            loc[1]*iloc[1]<0.0f) {
222                                                                 loc[1]= 0.0f;
223                                                                 clip = 1;
224                                                         }
225                                                 }
226                                                 if(axis & 4) {
227                                                         if(fabs(iloc[2])<=tolerance[2] ||
228                                                            loc[2]*iloc[2]<0.0f) {
229                                                                 loc[2]= 0.0f;
230                                                                 clip = 1;
231                                                         }
232                                                 }
233                                                 if (clip) {
234                                                         if (mmd->mirror_ob) {
235                                                                 mul_v3_m4v3(loc, imtx, loc);
236                                                         }
237                                                         copy_v3_v3(td->loc, loc);
238                                                 }
239                                         }
240                                 }
241                                 
242                         }
243                 }
244         }
245 }
246
247 /* assumes obedit set to mesh object */
248 static void editmesh_apply_to_mirror(TransInfo *t)
249 {
250         TransData *td = t->data;
251         EditVert *eve;
252         int i;
253         
254         for(i = 0 ; i < t->total; i++, td++) {
255                 if (td->flag & TD_NOACTION)
256                         break;
257                 if (td->loc==NULL)
258                         break;
259                 if (td->flag & TD_SKIP)
260                         continue;
261                 
262                 eve = td->extra;
263                 if (eve) {
264                         eve->co[0]= -td->loc[0];
265                         eve->co[1]= td->loc[1];
266                         eve->co[2]= td->loc[2];
267                 }
268                 
269                 if (td->flag & TD_MIRROR_EDGE)
270                 {
271                         td->loc[0] = 0;
272                 }
273         }
274 }
275
276 /* for the realtime animation recording feature, handle overlapping data */
277 static void animrecord_check_state (Scene *scene, ID *id, wmTimer *animtimer)
278 {
279         ScreenAnimData *sad= (animtimer) ? animtimer->customdata : NULL;
280         
281         /* sanity checks */
282         if ELEM3(NULL, scene, id, sad)
283                 return;
284         
285         /* check if we need a new strip if:
286          *      - if animtimer is running 
287          *      - we're not only keying for available channels
288          *      - the option to add new actions for each round is not enabled
289          */
290         if (IS_AUTOKEY_FLAG(INSERTAVAIL)==0 && (scene->toolsettings->autokey_flag & ANIMRECORD_FLAG_WITHNLA)) {
291                 /* if playback has just looped around, we need to add a new NLA track+strip to allow a clean pass to occur */
292                 if ((sad) && (sad->flag & ANIMPLAY_FLAG_JUMPED)) {
293                         AnimData *adt= BKE_animdata_from_id(id);
294                         
295                         /* perform push-down manually with some differences 
296                          * NOTE: BKE_nla_action_pushdown() sync warning...
297                          */
298                         if ((adt->action) && !(adt->flag & ADT_NLA_EDIT_ON)) {
299                                 float astart, aend;
300                                 
301                                 /* only push down if action is more than 1-2 frames long */
302                                 calc_action_range(adt->action, &astart, &aend, 1);
303                                 if (aend > astart+2.0f) {
304                                         NlaStrip *strip= add_nlastrip_to_stack(adt, adt->action);
305                                         
306                                         /* clear reference to action now that we've pushed it onto the stack */
307                                         adt->action->id.us--;
308                                         adt->action= NULL;
309                                         
310                                         /* adjust blending + extend so that they will behave correctly */
311                                         strip->extendmode= NLASTRIP_EXTEND_NOTHING;
312                                         strip->flag &= ~(NLASTRIP_FLAG_AUTO_BLENDS|NLASTRIP_FLAG_SELECT|NLASTRIP_FLAG_ACTIVE);
313                                         
314                                         /* also, adjust the AnimData's action extend mode to be on 
315                                          * 'nothing' so that previous result still play 
316                                          */
317                                         adt->act_extendmode= NLASTRIP_EXTEND_NOTHING;
318                                 }
319                         }
320                 }
321         }
322 }
323
324 /* called for updating while transform acts, once per redraw */
325 void recalcData(TransInfo *t)
326 {
327         Scene *scene = t->scene;
328         Base *base = scene->basact;
329
330         if (t->spacetype==SPACE_NODE) {
331                 flushTransNodes(t);
332         }
333         else if (t->spacetype==SPACE_SEQ) {
334                 flushTransSeq(t);
335         }
336         else if (t->spacetype == SPACE_ACTION) {
337                 Scene *scene= t->scene;
338                 
339                 bAnimContext ac;
340                 ListBase anim_data = {NULL, NULL};
341                 bAnimListElem *ale;
342                 int filter;
343                 
344                 /* initialise relevant anim-context 'context' data from TransInfo data */
345                         /* NOTE: sync this with the code in ANIM_animdata_get_context() */
346                 memset(&ac, 0, sizeof(bAnimContext));
347                 
348                 ac.scene= t->scene;
349                 ac.obact= OBACT;
350                 ac.sa= t->sa;
351                 ac.ar= t->ar;
352                 ac.spacetype= (t->sa)? t->sa->spacetype : 0;
353                 ac.regiontype= (t->ar)? t->ar->regiontype : 0;
354                 
355                 ANIM_animdata_context_getdata(&ac);
356                 
357                 /* get animdata blocks visible in editor, assuming that these will be the ones where things changed */
358                 filter= (ANIMFILTER_VISIBLE | ANIMFILTER_ANIMDATA);
359                 ANIM_animdata_filter(&ac, &anim_data, filter, ac.data, ac.datatype);
360                 
361                 /* just tag these animdata-blocks to recalc, assuming that some data there changed */
362                 for (ale= anim_data.first; ale; ale= ale->next) {
363                         /* set refresh tags for objects using this animation */
364                         ANIM_list_elem_update(t->scene, ale);
365                 }
366                 
367                 /* now free temp channels */
368                 BLI_freelistN(&anim_data);
369         }
370         else if (t->spacetype == SPACE_IPO) {
371                 Scene *scene;
372                 
373                 ListBase anim_data = {NULL, NULL};
374                 bAnimContext ac;
375                 int filter;
376                 
377                 bAnimListElem *ale;
378                 int dosort = 0;
379                 
380                 
381                 /* initialise relevant anim-context 'context' data from TransInfo data */
382                         /* NOTE: sync this with the code in ANIM_animdata_get_context() */
383                 memset(&ac, 0, sizeof(bAnimContext));
384                 
385                 scene= ac.scene= t->scene;
386                 ac.obact= OBACT;
387                 ac.sa= t->sa;
388                 ac.ar= t->ar;
389                 ac.spacetype= (t->sa)? t->sa->spacetype : 0;
390                 ac.regiontype= (t->ar)? t->ar->regiontype : 0;
391                 
392                 ANIM_animdata_context_getdata(&ac);
393                 
394                 /* do the flush first */
395                 flushTransGraphData(t);
396                 
397                 /* get curves to check if a re-sort is needed */
398                 filter= (ANIMFILTER_VISIBLE | ANIMFILTER_FOREDIT | ANIMFILTER_CURVESONLY | ANIMFILTER_CURVEVISIBLE);
399                 ANIM_animdata_filter(&ac, &anim_data, filter, ac.data, ac.datatype);
400                 
401                 /* now test if there is a need to re-sort */
402                 for (ale= anim_data.first; ale; ale= ale->next) {
403                         FCurve *fcu= (FCurve *)ale->key_data;
404                         
405                         /* watch it: if the time is wrong: do not correct handles yet */
406                         if (test_time_fcurve(fcu))
407                                 dosort++;
408                         else
409                                 calchandles_fcurve(fcu);
410                                 
411                         /* set refresh tags for objects using this animation */
412                         ANIM_list_elem_update(t->scene, ale);
413                 }
414                 
415                 /* do resort and other updates? */
416                 if (dosort) remake_graph_transdata(t, &anim_data);
417                 
418                 /* now free temp channels */
419                 BLI_freelistN(&anim_data);
420         }
421         else if (t->spacetype == SPACE_NLA) {
422                 TransDataNla *tdn= (TransDataNla *)t->customData;
423                 SpaceNla *snla= (SpaceNla *)t->sa->spacedata.first;
424                 Scene *scene= t->scene;
425                 double secf= FPS;
426                 int i;
427                 
428                 /* for each strip we've got, perform some additional validation of the values that got set before
429                  * using RNA to set the value (which does some special operations when setting these values to make
430                  * sure that everything works ok)
431                  */
432                 for (i = 0; i < t->total; i++, tdn++) {
433                         NlaStrip *strip= tdn->strip;
434                         PointerRNA strip_ptr;
435                         short pExceeded, nExceeded, iter;
436                         int delta_y1, delta_y2;
437                         
438                         /* if this tdn has no handles, that means it is just a dummy that should be skipped */
439                         if (tdn->handle == 0)
440                                 continue;
441                         
442                         /* set refresh tags for objects using this animation */
443                         ANIM_id_update(t->scene, tdn->id);
444                         
445                         /* if cancelling transform, just write the values without validating, then move on */
446                         if (t->state == TRANS_CANCEL) {
447                                 /* clear the values by directly overwriting the originals, but also need to restore
448                                  * endpoints of neighboring transition-strips
449                                  */
450                                 
451                                 /* start */
452                                 strip->start= tdn->h1[0];
453                                 
454                                 if ((strip->prev) && (strip->prev->type == NLASTRIP_TYPE_TRANSITION))
455                                         strip->prev->end= tdn->h1[0];
456                                 
457                                 /* end */
458                                 strip->end= tdn->h2[0];
459                                 
460                                 if ((strip->next) && (strip->next->type == NLASTRIP_TYPE_TRANSITION))
461                                         strip->next->start= tdn->h2[0];
462                                 
463                                 /* flush transforms to child strips (since this should be a meta) */
464                                 BKE_nlameta_flush_transforms(strip);
465                                 
466                                 /* restore to original track (if needed) */
467                                 if (tdn->oldTrack != tdn->nlt) {
468                                         /* just append to end of list for now, since strips get sorted in special_aftertrans_update() */
469                                         BLI_remlink(&tdn->nlt->strips, strip);
470                                         BLI_addtail(&tdn->oldTrack->strips, strip);
471                                 }
472                                 
473                                 continue;
474                         }
475                         
476                         /* firstly, check if the proposed transform locations would overlap with any neighbouring strips
477                          * (barring transitions) which are absolute barriers since they are not being moved
478                          *
479                          * this is done as a iterative procedure (done 5 times max for now)
480                          */
481                         for (iter=0; iter < 5; iter++) {
482                                 pExceeded= ((strip->prev) && (strip->prev->type != NLASTRIP_TYPE_TRANSITION) && (tdn->h1[0] < strip->prev->end));
483                                 nExceeded= ((strip->next) && (strip->next->type != NLASTRIP_TYPE_TRANSITION) && (tdn->h2[0] > strip->next->start));
484                                 
485                                 if ((pExceeded && nExceeded) || (iter == 4) ) {
486                                         /* both endpoints exceeded (or iteration ping-pong'd meaning that we need a compromise)
487                                          *      - simply crop strip to fit within the bounds of the strips bounding it
488                                          *      - if there were no neighbours, clear the transforms (make it default to the strip's current values)
489                                          */
490                                         if (strip->prev && strip->next) {
491                                                 tdn->h1[0]= strip->prev->end;
492                                                 tdn->h2[0]= strip->next->start;
493                                         }
494                                         else {
495                                                 tdn->h1[0]= strip->start;
496                                                 tdn->h2[0]= strip->end;
497                                         }
498                                 }
499                                 else if (nExceeded) {
500                                         /* move backwards */
501                                         float offset= tdn->h2[0] - strip->next->start;
502                                         
503                                         tdn->h1[0] -= offset;
504                                         tdn->h2[0] -= offset;
505                                 }
506                                 else if (pExceeded) {
507                                         /* more forwards */
508                                         float offset= strip->prev->end - tdn->h1[0];
509                                         
510                                         tdn->h1[0] += offset;
511                                         tdn->h2[0] += offset;
512                                 }
513                                 else /* all is fine and well */
514                                         break;
515                         }
516                         
517                         /* handle auto-snapping */
518                         switch (snla->autosnap) {
519                                 case SACTSNAP_FRAME: /* snap to nearest frame/time  */
520                                         if (snla->flag & SNLA_DRAWTIME) {
521                                                 tdn->h1[0]= (float)( floor((tdn->h1[0]/secf) + 0.5f) * secf );
522                                                 tdn->h2[0]= (float)( floor((tdn->h2[0]/secf) + 0.5f) * secf );
523                                         }
524                                         else {
525                                                 tdn->h1[0]= (float)( floor(tdn->h1[0]+0.5f) );
526                                                 tdn->h2[0]= (float)( floor(tdn->h2[0]+0.5f) );
527                                         }
528                                         break;
529                                 
530                                 case SACTSNAP_MARKER: /* snap to nearest marker */
531                                         tdn->h1[0]= (float)ED_markers_find_nearest_marker_time(&t->scene->markers, tdn->h1[0]);
532                                         tdn->h2[0]= (float)ED_markers_find_nearest_marker_time(&t->scene->markers, tdn->h2[0]);
533                                         break;
534                         }
535                         
536                         /* use RNA to write the values... */
537                         // TODO: do we need to write in 2 passes to make sure that no truncation goes on?
538                         RNA_pointer_create(NULL, &RNA_NlaStrip, strip, &strip_ptr);
539                         
540                         RNA_float_set(&strip_ptr, "start_frame", tdn->h1[0]);
541                         RNA_float_set(&strip_ptr, "end_frame", tdn->h2[0]);
542                         
543                         /* flush transforms to child strips (since this should be a meta) */
544                         BKE_nlameta_flush_transforms(strip);
545                         
546                         
547                         /* now, check if we need to try and move track
548                          *      - we need to calculate both, as only one may have been altered by transform if only 1 handle moved
549                          */
550                         delta_y1= ((int)tdn->h1[1] / NLACHANNEL_STEP - tdn->trackIndex);
551                         delta_y2= ((int)tdn->h2[1] / NLACHANNEL_STEP - tdn->trackIndex);
552                         
553                         if (delta_y1 || delta_y2) {
554                                 NlaTrack *track;
555                                 int delta = (delta_y2) ? delta_y2 : delta_y1;
556                                 int n;
557                                 
558                                 /* move in the requested direction, checking at each layer if there's space for strip to pass through,
559                                  * stopping on the last track available or that we're able to fit in
560                                  */
561                                 if (delta > 0) {
562                                         for (track=tdn->nlt->next, n=0; (track) && (n < delta); track=track->next, n++) {
563                                                 /* check if space in this track for the strip */
564                                                 if (BKE_nlatrack_has_space(track, strip->start, strip->end)) {
565                                                         /* move strip to this track */
566                                                         BLI_remlink(&tdn->nlt->strips, strip);
567                                                         BKE_nlatrack_add_strip(track, strip);
568                                                         
569                                                         tdn->nlt= track;
570                                                         tdn->trackIndex += (n + 1); /* + 1, since n==0 would mean that we didn't change track */
571                                                 }
572                                                 else /* can't move any further */
573                                                         break;
574                                         }
575                                 }
576                                 else {
577                                         /* make delta 'positive' before using it, since we now know to go backwards */
578                                         delta= -delta;
579                                         
580                                         for (track=tdn->nlt->prev, n=0; (track) && (n < delta); track=track->prev, n++) {
581                                                 /* check if space in this track for the strip */
582                                                 if (BKE_nlatrack_has_space(track, strip->start, strip->end)) {
583                                                         /* move strip to this track */
584                                                         BLI_remlink(&tdn->nlt->strips, strip);
585                                                         BKE_nlatrack_add_strip(track, strip);
586                                                         
587                                                         tdn->nlt= track;
588                                                         tdn->trackIndex -= (n - 1); /* - 1, since n==0 would mean that we didn't change track */
589                                                 }
590                                                 else /* can't move any further */
591                                                         break;
592                                         }
593                                 }
594                         }
595                 }
596         }
597         else if (t->spacetype == SPACE_IMAGE) {
598                 if (t->obedit && t->obedit->type == OB_MESH) {
599                         SpaceImage *sima= t->sa->spacedata.first;
600                         
601                         flushTransUVs(t);
602                         if(sima->flag & SI_LIVE_UNWRAP)
603                                 ED_uvedit_live_unwrap_re_solve();
604                         
605                         DAG_id_flush_update(t->obedit->data, OB_RECALC_DATA);
606                 }
607         }
608         else if (t->spacetype == SPACE_VIEW3D) {
609                 
610                 /* project */
611                 if(t->state != TRANS_CANCEL) {
612                         applyProject(t);
613                 }
614                 
615                 if (t->obedit) {
616                         if ELEM(t->obedit->type, OB_CURVE, OB_SURF) {
617                                 Curve *cu= t->obedit->data;
618                                 Nurb *nu= cu->editnurb->first;
619                                 
620                                 DAG_id_flush_update(t->obedit->data, OB_RECALC_DATA);  /* sets recalc flags */
621                                 
622                                 if (t->state == TRANS_CANCEL) {
623                                         while(nu) {
624                                                 calchandlesNurb(nu); /* Cant do testhandlesNurb here, it messes up the h1 and h2 flags */
625                                                 nu= nu->next;
626                                         }
627                                 } else {
628                                         /* Normal updating */
629                                         while(nu) {
630                                                 test2DNurb(nu);
631                                                 calchandlesNurb(nu);
632                                                 nu= nu->next;
633                                         }
634                                 }
635                         }
636                         else if(t->obedit->type==OB_LATTICE) {
637                                 Lattice *la= t->obedit->data;
638                                 DAG_id_flush_update(t->obedit->data, OB_RECALC_DATA);  /* sets recalc flags */
639         
640                                 if(la->editlatt->flag & LT_OUTSIDE) outside_lattice(la->editlatt);
641                         }
642                         else if (t->obedit->type == OB_MESH) {
643                                 EditMesh *em = ((Mesh*)t->obedit->data)->edit_mesh;
644                                 /* mirror modifier clipping? */
645                                 if(t->state != TRANS_CANCEL) {
646                                         clipMirrorModifier(t, t->obedit);
647                                 }
648                                 if((t->options & CTX_NO_MIRROR) == 0 && (t->flag & T_MIRROR))
649                                         editmesh_apply_to_mirror(t);
650                                         
651                                 DAG_id_flush_update(t->obedit->data, OB_RECALC_DATA);  /* sets recalc flags */
652                                 
653                                 recalc_editnormals(em);
654                         }
655                         else if(t->obedit->type==OB_ARMATURE) { /* no recalc flag, does pose */
656                                 bArmature *arm= t->obedit->data;
657                                 ListBase *edbo = arm->edbo;
658                                 EditBone *ebo;
659                                 TransData *td = t->data;
660                                 int i;
661                                 
662                                 /* Ensure all bones are correctly adjusted */
663                                 for (ebo = edbo->first; ebo; ebo = ebo->next){
664                                         
665                                         if ((ebo->flag & BONE_CONNECTED) && ebo->parent){
666                                                 /* If this bone has a parent tip that has been moved */
667                                                 if (ebo->parent->flag & BONE_TIPSEL){
668                                                         VECCOPY (ebo->head, ebo->parent->tail);
669                                                         if(t->mode==TFM_BONE_ENVELOPE) ebo->rad_head= ebo->parent->rad_tail;
670                                                 }
671                                                 /* If this bone has a parent tip that has NOT been moved */
672                                                 else{
673                                                         VECCOPY (ebo->parent->tail, ebo->head);
674                                                         if(t->mode==TFM_BONE_ENVELOPE) ebo->parent->rad_tail= ebo->rad_head;
675                                                 }
676                                         }
677                                         
678                                         /* on extrude bones, oldlength==0.0f, so we scale radius of points */
679                                         ebo->length= len_v3v3(ebo->head, ebo->tail);
680                                         if(ebo->oldlength==0.0f) {
681                                                 ebo->rad_head= 0.25f*ebo->length;
682                                                 ebo->rad_tail= 0.10f*ebo->length;
683                                                 ebo->dist= 0.25f*ebo->length;
684                                                 if(ebo->parent) {
685                                                         if(ebo->rad_head > ebo->parent->rad_tail)
686                                                                 ebo->rad_head= ebo->parent->rad_tail;
687                                                 }
688                                         }
689                                         else if(t->mode!=TFM_BONE_ENVELOPE) {
690                                                 /* if bones change length, lets do that for the deform distance as well */
691                                                 ebo->dist*= ebo->length/ebo->oldlength;
692                                                 ebo->rad_head*= ebo->length/ebo->oldlength;
693                                                 ebo->rad_tail*= ebo->length/ebo->oldlength;
694                                                 ebo->oldlength= ebo->length;
695                                         }
696                                 }
697                                 
698                                 
699                                 if (t->mode != TFM_BONE_ROLL)
700                                 {
701                                         /* fix roll */
702                                         for(i = 0; i < t->total; i++, td++)
703                                         {
704                                                 if (td->extra)
705                                                 {
706                                                         float vec[3], up_axis[3];
707                                                         float qrot[4];
708                                                         
709                                                         ebo = td->extra;
710                                                         VECCOPY(up_axis, td->axismtx[2]);
711                                                         
712                                                         if (t->mode != TFM_ROTATION)
713                                                         {
714                                                                 sub_v3_v3v3(vec, ebo->tail, ebo->head);
715                                                                 normalize_v3(vec);
716                                                                 rotation_between_vecs_to_quat(qrot, td->axismtx[1], vec);
717                                                                 mul_qt_v3(qrot, up_axis);
718                                                         }
719                                                         else
720                                                         {
721                                                                 mul_m3_v3(t->mat, up_axis);
722                                                         }
723                                                         
724                                                         ebo->roll = ED_rollBoneToVector(ebo, up_axis);
725                                                 }
726                                         }
727                                 }
728                                 
729                                 if(arm->flag & ARM_MIRROR_EDIT)
730                                         transform_armature_mirror_update(t->obedit);
731                                 
732                         }
733                         else
734                                 DAG_id_flush_update(t->obedit->data, OB_RECALC_DATA);  /* sets recalc flags */
735                 }
736                 else if( (t->flag & T_POSE) && t->poseobj) {
737                         Object *ob= t->poseobj;
738                         bArmature *arm= ob->data;
739                         
740                         /* if animtimer is running, and the object already has animation data,
741                          * check if the auto-record feature means that we should record 'samples'
742                          * (i.e. uneditable animation values)
743                          */
744                         // TODO: autokeyframe calls need some setting to specify to add samples (FPoints) instead of keyframes?
745                         if ((t->animtimer) && IS_AUTOKEY_ON(t->scene)) {
746                                 int targetless_ik= (t->flag & T_AUTOIK); // XXX this currently doesn't work, since flags aren't set yet!
747                                 
748                                 animrecord_check_state(t->scene, &ob->id, t->animtimer);
749                                 autokeyframe_pose_cb_func(t->scene, (View3D *)t->view, ob, t->mode, targetless_ik);
750                         }
751                         
752                         /* old optimize trick... this enforces to bypass the depgraph */
753                         if (!(arm->flag & ARM_DELAYDEFORM)) {
754                                 DAG_id_flush_update(&ob->id, OB_RECALC_DATA);  /* sets recalc flags */
755                         }
756                         else
757                                 where_is_pose(scene, ob);
758                 }
759                 else if(base && (base->object->mode & OB_MODE_PARTICLE_EDIT) && PE_get_current(scene, base->object)) {
760                         flushTransParticles(t);
761                 }
762                 else {
763                         int i;
764                         
765                         for(base= FIRSTBASE; base; base= base->next) {
766                                 Object *ob= base->object;
767                                 
768                                 /* this flag is from depgraph, was stored in initialize phase, handled in drawview.c */
769                                 if(base->flag & BA_HAS_RECALC_OB)
770                                         ob->recalc |= OB_RECALC_OB;
771                                 if(base->flag & BA_HAS_RECALC_DATA)
772                                         ob->recalc |= OB_RECALC_DATA;
773                         }
774                         
775                         for (i = 0; i < t->total; i++) {
776                                 TransData *td = t->data + i;
777                                 Object *ob = td->ob;
778                                 
779                                 if (td->flag & TD_NOACTION)
780                                         break;
781                                 
782                                 if (td->flag & TD_SKIP)
783                                         continue;
784                                 
785                                 /* if animtimer is running, and the object already has animation data,
786                                  * check if the auto-record feature means that we should record 'samples'
787                                  * (i.e. uneditable animation values)
788                                  */
789                                 // TODO: autokeyframe calls need some setting to specify to add samples (FPoints) instead of keyframes?
790                                 if ((t->animtimer) && IS_AUTOKEY_ON(t->scene)) {
791                                         animrecord_check_state(t->scene, &ob->id, t->animtimer);
792                                         autokeyframe_ob_cb_func(t->scene, (View3D *)t->view, ob, t->mode);
793                                 }
794                                 
795                                 /* proxy exception */
796                                 if(ob->proxy)
797                                         ob->proxy->recalc |= ob->recalc;
798                                 if(ob->proxy_group)
799                                         group_tag_recalc(ob->proxy_group->dup_group);
800                         }
801                 }
802                 
803                 if(((View3D*)t->view)->drawtype == OB_SHADED)
804                         reshadeall_displist(t->scene);
805         }
806 }
807
808 void drawLine(TransInfo *t, float *center, float *dir, char axis, short options)
809 {
810         float v1[3], v2[3], v3[3];
811         char col[3], col2[3];
812
813         if (t->spacetype == SPACE_VIEW3D)
814         {
815                 View3D *v3d = t->view;
816                 
817                 glPushMatrix();
818                 
819                 //if(t->obedit) glLoadMatrixf(t->obedit->obmat);        // sets opengl viewing
820                 
821                 
822                 copy_v3_v3(v3, dir);
823                 mul_v3_fl(v3, v3d->far);
824                 
825                 sub_v3_v3v3(v2, center, v3);
826                 add_v3_v3v3(v1, center, v3);
827                 
828                 if (options & DRAWLIGHT) {
829                         col[0] = col[1] = col[2] = 220;
830                 }
831                 else {
832                         UI_GetThemeColor3ubv(TH_GRID, col);
833                 }
834                 UI_make_axis_color(col, col2, axis);
835                 glColor3ubv((GLubyte *)col2);
836                 
837                 setlinestyle(0);
838                 glBegin(GL_LINE_STRIP);
839                         glVertex3fv(v1);
840                         glVertex3fv(v2);
841                 glEnd();
842                 
843                 glPopMatrix();
844         }
845 }
846
847 void resetTransRestrictions(TransInfo *t)
848 {
849         t->flag &= ~T_ALL_RESTRICTIONS;
850 }
851
852 int initTransInfo (bContext *C, TransInfo *t, wmOperator *op, wmEvent *event)
853 {
854         Scene *sce = CTX_data_scene(C);
855         ToolSettings *ts = CTX_data_tool_settings(C);
856         ARegion *ar = CTX_wm_region(C);
857         ScrArea *sa = CTX_wm_area(C);
858         Object *obedit = CTX_data_edit_object(C);
859         
860         /* moving: is shown in drawobject() (transform color) */
861 //  TRANSFORM_FIX_ME
862 //      if(obedit || (t->flag & T_POSE) ) G.moving= G_TRANSFORM_EDIT;
863 //      else if(G.f & G_PARTICLEEDIT) G.moving= G_TRANSFORM_PARTICLE;
864 //      else G.moving= G_TRANSFORM_OBJ;
865         
866         t->scene = sce;
867         t->sa = sa;
868         t->ar = ar;
869         t->obedit = obedit;
870         t->settings = ts;
871         
872         t->data = NULL;
873         t->ext = NULL;
874         
875         t->helpline = HLP_NONE;
876         
877         t->flag = 0;
878         
879         t->redraw = 1; /* redraw first time */
880         
881         if (event)
882         {
883                 t->imval[0] = event->x - t->ar->winrct.xmin;
884                 t->imval[1] = event->y - t->ar->winrct.ymin;
885                 
886                 t->event_type = event->type;
887         }
888         else
889         {
890                 t->imval[0] = 0;
891                 t->imval[1] = 0;
892         }
893         
894         t->con.imval[0] = t->imval[0];
895         t->con.imval[1] = t->imval[1];
896         
897         t->mval[0] = t->imval[0];
898         t->mval[1] = t->imval[1];
899         
900         t->transform            = NULL;
901         t->handleEvent          = NULL;
902         
903         t->total                        = 0;
904         
905         t->val = 0.0f;
906         
907         t->vec[0]                       =
908                 t->vec[1]               =
909                 t->vec[2]               = 0.0f;
910         
911         t->center[0]            =
912                 t->center[1]    =
913                 t->center[2]    = 0.0f;
914         
915         unit_m3(t->mat);
916         
917         /* if there's an event, we're modal */
918         if (event) {
919                 t->flag |= T_MODAL;
920         }
921
922         t->spacetype = sa->spacetype;
923         if(t->spacetype == SPACE_VIEW3D)
924         {
925                 View3D *v3d = sa->spacedata.first;
926                 
927                 t->view = v3d;
928                 t->animtimer= CTX_wm_screen(C)->animtimer;
929                 
930                 if(v3d->flag & V3D_ALIGN) t->flag |= T_V3D_ALIGN;
931                 t->around = v3d->around;
932                 
933                 if (op && RNA_struct_find_property(op->ptr, "constraint_orientation") && RNA_property_is_set(op->ptr, "constraint_orientation"))
934                 {
935                         t->current_orientation = RNA_enum_get(op->ptr, "constraint_orientation");
936                         
937                         if (t->current_orientation >= V3D_MANIP_CUSTOM + BIF_countTransformOrientation(C) - 1)
938                         {
939                                 t->current_orientation = V3D_MANIP_GLOBAL;
940                         }
941                 }
942                 else
943                 {
944                         t->current_orientation = v3d->twmode;
945                 }
946         }
947         else if(t->spacetype==SPACE_IMAGE || t->spacetype==SPACE_NODE)
948         {
949                 SpaceImage *sima = sa->spacedata.first;
950                 // XXX for now, get View2D  from the active region
951                 t->view = &ar->v2d;
952                 t->around = sima->around;
953         }
954         else if(t->spacetype==SPACE_IPO) 
955         {
956                 SpaceIpo *sipo= sa->spacedata.first;
957                 t->view = &ar->v2d;
958                 t->around = sipo->around;
959         }
960         else
961         {
962                 // XXX for now, get View2D  from the active region
963                 t->view = &ar->v2d;
964                 // XXX for now, the center point is the midpoint of the data
965                 t->around = V3D_CENTER;
966         }
967         
968         if (op && RNA_struct_find_property(op->ptr, "mirror") && RNA_property_is_set(op->ptr, "mirror"))
969         {
970                 if (RNA_boolean_get(op->ptr, "mirror"))
971                 {
972                         t->flag |= T_MIRROR;
973                         t->mirror = 1;
974                 }
975         }
976         // Need stuff to take it from edit mesh or whatnot here
977         else
978         {
979                 if (t->obedit && t->obedit->type == OB_MESH && (((Mesh *)t->obedit->data)->editflag & ME_EDIT_MIRROR_X))
980                 {
981                         t->flag |= T_MIRROR;
982                         t->mirror = 1;
983                 }
984         }
985         
986         /* setting PET flag only if property exist in operator. Otherwise, assume it's not supported */
987         if (op && RNA_struct_find_property(op->ptr, "proportional"))
988         {
989                 if (RNA_property_is_set(op->ptr, "proportional"))
990                 {
991                         switch(RNA_enum_get(op->ptr, "proportional"))
992                         {
993                         case 2: /* XXX connected constant */
994                                 t->flag |= T_PROP_CONNECTED;
995                         case 1: /* XXX prop on constant */
996                                 t->flag |= T_PROP_EDIT;
997                                 break;
998                         }
999                 }
1000                 else
1001                 {
1002                         /* use settings from scene only if modal */
1003                         if (t->flag & T_MODAL)
1004                         {
1005                                 if ((t->options & CTX_NO_PET) == 0 && (ts->proportional != PROP_EDIT_OFF)) {
1006                                         t->flag |= T_PROP_EDIT;
1007
1008                                         if(ts->proportional == PROP_EDIT_CONNECTED)
1009                                                 t->flag |= T_PROP_CONNECTED;
1010                                 }
1011                         }
1012                 }
1013                 
1014                 if (op && RNA_struct_find_property(op->ptr, "proportional_size") && RNA_property_is_set(op->ptr, "proportional_size"))
1015                 {
1016                         t->prop_size = RNA_float_get(op->ptr, "proportional_size");
1017                 }
1018                 else
1019                 {
1020                         t->prop_size = ts->proportional_size;
1021                 }
1022                 
1023                 
1024                 /* TRANSFORM_FIX_ME rna restrictions */
1025                 if (t->prop_size <= 0)
1026                 {
1027                         t->prop_size = 1.0f;
1028                 }
1029                 
1030                 if (op && RNA_struct_find_property(op->ptr, "proportional_editing_falloff") && RNA_property_is_set(op->ptr, "proportional_editing_falloff"))
1031                 {
1032                         t->prop_mode = RNA_enum_get(op->ptr, "proportional_editing_falloff");
1033                 }
1034                 else
1035                 {
1036                         t->prop_mode = ts->prop_mode;
1037                 }
1038         }
1039         else /* add not pet option to context when not available */
1040         {
1041                 t->options |= CTX_NO_PET;
1042         }
1043         
1044         setTransformViewMatrices(t);
1045         initNumInput(&t->num);
1046         initNDofInput(&t->ndof);
1047         
1048         return 1;
1049 }
1050
1051 /* Here I would suggest only TransInfo related issues, like free data & reset vars. Not redraws */
1052 void postTrans (bContext *C, TransInfo *t)
1053 {
1054         TransData *td;
1055         
1056         if (t->draw_handle_view)
1057                 ED_region_draw_cb_exit(t->ar->type, t->draw_handle_view);
1058         if (t->draw_handle_pixel)
1059                 ED_region_draw_cb_exit(t->ar->type, t->draw_handle_pixel);
1060         if (t->draw_handle_cursor)
1061                 WM_paint_cursor_end(CTX_wm_manager(C), t->draw_handle_cursor);
1062
1063         if (t->customFree) {
1064                 /* Can take over freeing t->data and data2d etc... */
1065                 t->customFree(t);
1066         }
1067         else if (t->customData) {
1068                 MEM_freeN(t->customData);
1069         }
1070
1071         /* postTrans can be called when nothing is selected, so data is NULL already */
1072         if (t->data) {
1073                 int a;
1074                 
1075                 /* since ipokeys are optional on objects, we mallocced them per trans-data */
1076                 for(a=0, td= t->data; a<t->total; a++, td++) {
1077                         if (td->flag & TD_BEZTRIPLE) 
1078                                 MEM_freeN(td->hdata);
1079                 }
1080                 MEM_freeN(t->data);
1081         }
1082         
1083         BLI_freelistN(&t->tsnap.points);
1084
1085         if (t->ext) MEM_freeN(t->ext);
1086         if (t->data2d) {
1087                 MEM_freeN(t->data2d);
1088                 t->data2d= NULL;
1089         }
1090         
1091         if(t->spacetype==SPACE_IMAGE) {
1092                 SpaceImage *sima= t->sa->spacedata.first;
1093                 if(sima->flag & SI_LIVE_UNWRAP)
1094                         ED_uvedit_live_unwrap_end(t->state == TRANS_CANCEL);
1095         }
1096         
1097         if (t->mouse.data)
1098         {
1099                 MEM_freeN(t->mouse.data);
1100         }
1101 }
1102
1103 void applyTransObjects(TransInfo *t)
1104 {
1105         TransData *td;
1106         
1107         for (td = t->data; td < t->data + t->total; td++) {
1108                 VECCOPY(td->iloc, td->loc);
1109                 if (td->ext->rot) {
1110                         VECCOPY(td->ext->irot, td->ext->rot);
1111                 }
1112                 if (td->ext->size) {
1113                         VECCOPY(td->ext->isize, td->ext->size);
1114                 }
1115         }
1116         recalcData(t);
1117 }
1118
1119 static void restoreElement(TransData *td) {
1120         /* TransData for crease has no loc */
1121         if (td->loc) {
1122                 VECCOPY(td->loc, td->iloc);
1123         }
1124         if (td->val) {
1125                 *td->val = td->ival;
1126         }
1127         if (td->ext && (td->flag&TD_NO_EXT)==0) {
1128                 if (td->ext->rot) {
1129                         VECCOPY(td->ext->rot, td->ext->irot);
1130                 }
1131                 if (td->ext->size) {
1132                         VECCOPY(td->ext->size, td->ext->isize);
1133                 }
1134                 if (td->ext->quat) {
1135                         QUATCOPY(td->ext->quat, td->ext->iquat);
1136                 }
1137         }
1138         
1139         if (td->flag & TD_BEZTRIPLE) {
1140                 *(td->hdata->h1) = td->hdata->ih1;
1141                 *(td->hdata->h2) = td->hdata->ih2;
1142         }
1143 }
1144
1145 void restoreTransObjects(TransInfo *t)
1146 {
1147         TransData *td;
1148         
1149         for (td = t->data; td < t->data + t->total; td++) {
1150                 restoreElement(td);
1151         }
1152         
1153         unit_m3(t->mat);
1154         
1155         recalcData(t);
1156 }
1157
1158 void calculateCenter2D(TransInfo *t)
1159 {
1160         if (t->flag & (T_EDIT|T_POSE)) {
1161                 Object *ob= t->obedit?t->obedit:t->poseobj;
1162                 float vec[3];
1163                 
1164                 VECCOPY(vec, t->center);
1165                 mul_m4_v3(ob->obmat, vec);
1166                 projectIntView(t, vec, t->center2d);
1167         }
1168         else {
1169                 projectIntView(t, t->center, t->center2d);
1170         }
1171 }
1172
1173 void calculateCenterCursor(TransInfo *t)
1174 {
1175         float *cursor;
1176         
1177         cursor = give_cursor(t->scene, t->view);
1178         VECCOPY(t->center, cursor);
1179         
1180         /* If edit or pose mode, move cursor in local space */
1181         if (t->flag & (T_EDIT|T_POSE)) {
1182                 Object *ob = t->obedit?t->obedit:t->poseobj;
1183                 float mat[3][3], imat[3][3];
1184                 
1185                 sub_v3_v3v3(t->center, t->center, ob->obmat[3]);
1186                 copy_m3_m4(mat, ob->obmat);
1187                 invert_m3_m3(imat, mat);
1188                 mul_m3_v3(imat, t->center);
1189         }
1190         
1191         calculateCenter2D(t);
1192 }
1193
1194 void calculateCenterCursor2D(TransInfo *t)
1195 {
1196         View2D *v2d= t->view;
1197         float aspx=1.0, aspy=1.0;
1198         
1199         if(t->spacetype==SPACE_IMAGE) /* only space supported right now but may change */
1200                 ED_space_image_uv_aspect(t->sa->spacedata.first, &aspx, &aspy);
1201         
1202         if (v2d) {
1203                 t->center[0] = v2d->cursor[0] * aspx;
1204                 t->center[1] = v2d->cursor[1] * aspy;
1205         }
1206         
1207         calculateCenter2D(t);
1208 }
1209
1210 void calculateCenterCursorGraph2D(TransInfo *t)
1211 {
1212         SpaceIpo *sipo= (SpaceIpo *)t->sa->spacedata.first;
1213         Scene *scene= t->scene;
1214         
1215         /* cursor is combination of current frame, and graph-editor cursor value */
1216         t->center[0]= (float)(scene->r.cfra);
1217         t->center[1]= sipo->cursorVal;
1218         
1219         calculateCenter2D(t);
1220 }
1221
1222 void calculateCenterMedian(TransInfo *t)
1223 {
1224         float partial[3] = {0.0f, 0.0f, 0.0f};
1225         int total = 0;
1226         int i;
1227         
1228         for(i = 0; i < t->total; i++) {
1229                 if (t->data[i].flag & TD_SELECTED) {
1230                         if (!(t->data[i].flag & TD_NOCENTER))
1231                         {
1232                                 add_v3_v3v3(partial, partial, t->data[i].center);
1233                                 total++;
1234                         }
1235                 }
1236                 else {
1237                         /*
1238                            All the selected elements are at the head of the array
1239                            which means we can stop when it finds unselected data
1240                         */
1241                         break;
1242                 }
1243         }
1244         if(i)
1245                 mul_v3_fl(partial, 1.0f / total);
1246         VECCOPY(t->center, partial);
1247         
1248         calculateCenter2D(t);
1249 }
1250
1251 void calculateCenterBound(TransInfo *t)
1252 {
1253         float max[3];
1254         float min[3];
1255         int i;
1256         for(i = 0; i < t->total; i++) {
1257                 if (i) {
1258                         if (t->data[i].flag & TD_SELECTED) {
1259                                 if (!(t->data[i].flag & TD_NOCENTER))
1260                                         minmax_v3_v3v3(min, max, t->data[i].center);
1261                         }
1262                         else {
1263                                 /*
1264                                    All the selected elements are at the head of the array
1265                                    which means we can stop when it finds unselected data
1266                                 */
1267                                 break;
1268                         }
1269                 }
1270                 else {
1271                         VECCOPY(max, t->data[i].center);
1272                         VECCOPY(min, t->data[i].center);
1273                 }
1274         }
1275         add_v3_v3v3(t->center, min, max);
1276         mul_v3_fl(t->center, 0.5);
1277         
1278         calculateCenter2D(t);
1279 }
1280
1281 void calculateCenter(TransInfo *t)
1282 {
1283         switch(t->around) {
1284         case V3D_CENTER:
1285                 calculateCenterBound(t);
1286                 break;
1287         case V3D_CENTROID:
1288                 calculateCenterMedian(t);
1289                 break;
1290         case V3D_CURSOR:
1291                 if(t->spacetype==SPACE_IMAGE)
1292                         calculateCenterCursor2D(t);
1293                 else if(t->spacetype==SPACE_IPO)
1294                         calculateCenterCursorGraph2D(t);
1295                 else
1296                         calculateCenterCursor(t);
1297                 break;
1298         case V3D_LOCAL:
1299                 /* Individual element center uses median center for helpline and such */
1300                 calculateCenterMedian(t);
1301                 break;
1302         case V3D_ACTIVE:
1303                 {
1304                 /* set median, and if if if... do object center */
1305                 
1306                 /* EDIT MODE ACTIVE EDITMODE ELEMENT */
1307
1308                 if (t->obedit && t->obedit->type == OB_MESH) {
1309                         EditSelection ese;
1310                         EditMesh *em = BKE_mesh_get_editmesh(t->obedit->data);
1311                         
1312                         if (EM_get_actSelection(em, &ese)) {
1313                                 EM_editselection_center(t->center, &ese);
1314                                 calculateCenter2D(t);
1315                                 break;
1316                         }
1317                 } /* END EDIT MODE ACTIVE ELEMENT */
1318                 
1319                 calculateCenterMedian(t);
1320                 if((t->flag & (T_EDIT|T_POSE))==0)
1321                 {
1322                         Scene *scene = t->scene;
1323                         Object *ob= OBACT;
1324                         if(ob)
1325                         {
1326                                 VECCOPY(t->center, ob->obmat[3]);
1327                                 projectIntView(t, t->center, t->center2d);
1328                         }
1329                 }
1330                 
1331                 }
1332         }
1333         
1334         /* setting constraint center */
1335         VECCOPY(t->con.center, t->center);
1336         if(t->flag & (T_EDIT|T_POSE))
1337         {
1338                 Object *ob= t->obedit?t->obedit:t->poseobj;
1339                 mul_m4_v3(ob->obmat, t->con.center);
1340         }
1341         
1342         /* for panning from cameraview */
1343         if(t->flag & T_OBJECT)
1344         {
1345                 if(t->spacetype==SPACE_VIEW3D && t->ar && t->ar->regiontype == RGN_TYPE_WINDOW)
1346                 {
1347                         View3D *v3d = t->view;
1348                         Scene *scene = t->scene;
1349                         RegionView3D *rv3d = t->ar->regiondata;
1350                         
1351                         if(v3d->camera == OBACT && rv3d->persp==RV3D_CAMOB)
1352                         {
1353                                 float axis[3];
1354                                 /* persinv is nasty, use viewinv instead, always right */
1355                                 VECCOPY(axis, t->viewinv[2]);
1356                                 normalize_v3(axis);
1357                                 
1358                                 /* 6.0 = 6 grid units */
1359                                 axis[0]= t->center[0]- 6.0f*axis[0];
1360                                 axis[1]= t->center[1]- 6.0f*axis[1];
1361                                 axis[2]= t->center[2]- 6.0f*axis[2];
1362                                 
1363                                 projectIntView(t, axis, t->center2d);
1364                                 
1365                                 /* rotate only needs correct 2d center, grab needs initgrabz() value */
1366                                 if(t->mode==TFM_TRANSLATION)
1367                                 {
1368                                         VECCOPY(t->center, axis);
1369                                         VECCOPY(t->con.center, t->center);
1370                                 }
1371                         }
1372                 }
1373         }
1374         
1375         if(t->spacetype==SPACE_VIEW3D)
1376         {
1377                 /* initgrabz() defines a factor for perspective depth correction, used in window_to_3d_delta() */
1378                 if(t->flag & (T_EDIT|T_POSE)) {
1379                         Object *ob= t->obedit?t->obedit:t->poseobj;
1380                         float vec[3];
1381                         
1382                         VECCOPY(vec, t->center);
1383                         mul_m4_v3(ob->obmat, vec);
1384                         initgrabz(t->ar->regiondata, vec[0], vec[1], vec[2]);
1385                 }
1386                 else {
1387                         initgrabz(t->ar->regiondata, t->center[0], t->center[1], t->center[2]);
1388                 }
1389         }
1390 }
1391
1392 void calculatePropRatio(TransInfo *t)
1393 {
1394         TransData *td = t->data;
1395         int i;
1396         float dist;
1397         short connected = t->flag & T_PROP_CONNECTED;
1398
1399         if (t->flag & T_PROP_EDIT) {
1400                 for(i = 0 ; i < t->total; i++, td++) {
1401                         if (td->flag & TD_SELECTED) {
1402                                 td->factor = 1.0f;
1403                         }
1404                         else if (t->flag & T_MIRROR && td->loc[0] * t->mirror < -0.00001f)
1405                         {
1406                                 td->flag |= TD_SKIP;
1407                                 td->factor = 0.0f;
1408                                 restoreElement(td);
1409                         }
1410                         else if ((connected &&
1411                                                 (td->flag & TD_NOTCONNECTED || td->dist > t->prop_size))
1412                                 ||
1413                                         (connected == 0 &&
1414                                                 td->rdist > t->prop_size)) {
1415                                 /*
1416                                    The elements are sorted according to their dist member in the array,
1417                                    that means we can stop when it finds one element outside of the propsize.
1418                                 */
1419                                 td->flag |= TD_NOACTION;
1420                                 td->factor = 0.0f;
1421                                 restoreElement(td);
1422                         }
1423                         else {
1424                                 /* Use rdist for falloff calculations, it is the real distance */
1425                                 td->flag &= ~TD_NOACTION;
1426                                 dist= (t->prop_size-td->rdist)/t->prop_size;
1427                                 
1428                                 /*
1429                                  * Clamp to positive numbers.
1430                                  * Certain corner cases with connectivity and individual centers
1431                                  * can give values of rdist larger than propsize.
1432                                  */
1433                                 if (dist < 0.0f)
1434                                         dist = 0.0f;
1435                                 
1436                                 switch(t->prop_mode) {
1437                                 case PROP_SHARP:
1438                                         td->factor= dist*dist;
1439                                         break;
1440                                 case PROP_SMOOTH:
1441                                         td->factor= 3.0f*dist*dist - 2.0f*dist*dist*dist;
1442                                         break;
1443                                 case PROP_ROOT:
1444                                         td->factor = (float)sqrt(dist);
1445                                         break;
1446                                 case PROP_LIN:
1447                                         td->factor = dist;
1448                                         break;
1449                                 case PROP_CONST:
1450                                         td->factor = 1.0f;
1451                                         break;
1452                                 case PROP_SPHERE:
1453                                         td->factor = (float)sqrt(2*dist - dist * dist);
1454                                         break;
1455                                 case PROP_RANDOM:
1456                                         BLI_srand( BLI_rand() ); /* random seed */
1457                                         td->factor = BLI_frand()*dist;
1458                                         break;
1459                                 default:
1460                                         td->factor = 1;
1461                                 }
1462                         }
1463                 }
1464                 switch(t->prop_mode) {
1465                 case PROP_SHARP:
1466                         strcpy(t->proptext, "(Sharp)");
1467                         break;
1468                 case PROP_SMOOTH:
1469                         strcpy(t->proptext, "(Smooth)");
1470                         break;
1471                 case PROP_ROOT:
1472                         strcpy(t->proptext, "(Root)");
1473                         break;
1474                 case PROP_LIN:
1475                         strcpy(t->proptext, "(Linear)");
1476                         break;
1477                 case PROP_CONST:
1478                         strcpy(t->proptext, "(Constant)");
1479                         break;
1480                 case PROP_SPHERE:
1481                         strcpy(t->proptext, "(Sphere)");
1482                         break;
1483                 case PROP_RANDOM:
1484                         strcpy(t->proptext, "(Random)");
1485                         break;
1486                 default:
1487                         strcpy(t->proptext, "");
1488                 }
1489         }
1490         else {
1491                 for(i = 0 ; i < t->total; i++, td++) {
1492                         td->factor = 1.0;
1493                 }
1494                 strcpy(t->proptext, "");
1495         }
1496 }
1497
1498 float get_drawsize(ARegion *ar, float *co)
1499 {
1500         RegionView3D *rv3d= ar->regiondata;
1501         float size, vec[3], len1, len2;
1502         
1503         /* size calculus, depending ortho/persp settings, like initgrabz() */
1504         size= rv3d->persmat[0][3]*co[0]+ rv3d->persmat[1][3]*co[1]+ rv3d->persmat[2][3]*co[2]+ rv3d->persmat[3][3];
1505         
1506         VECCOPY(vec, rv3d->persinv[0]);
1507         len1= normalize_v3(vec);
1508         VECCOPY(vec, rv3d->persinv[1]);
1509         len2= normalize_v3(vec);
1510         
1511         size*= 0.01f*(len1>len2?len1:len2);
1512         
1513         /* correct for window size to make widgets appear fixed size */
1514         if(ar->winx > ar->winy) size*= 1000.0f/(float)ar->winx;
1515         else size*= 1000.0f/(float)ar->winy;
1516         
1517         return size;
1518 }