Internal refactoring of tracking module, should be no functional changes
[blender.git] / source / blender / editors / transform / transform_conversions.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_conversions.c
29  *  \ingroup edtransform
30  */
31
32
33 #ifndef WIN32
34 #include <unistd.h>
35 #else
36 #include <io.h>
37 #endif
38 #include <string.h>
39 #include <math.h>
40
41 #include "DNA_anim_types.h"
42 #include "DNA_armature_types.h"
43 #include "DNA_lattice_types.h"
44 #include "DNA_mesh_types.h"
45 #include "DNA_meta_types.h"
46 #include "DNA_node_types.h"
47 #include "DNA_screen_types.h"
48 #include "DNA_space_types.h"
49 #include "DNA_sequence_types.h"
50 #include "DNA_view3d_types.h"
51 #include "DNA_constraint_types.h"
52 #include "DNA_scene_types.h"
53 #include "DNA_meshdata_types.h"
54 #include "DNA_gpencil_types.h"
55 #include "DNA_movieclip_types.h"
56 #include "DNA_mask_types.h"
57
58 #include "MEM_guardedalloc.h"
59
60 #include "BLI_math.h"
61 #include "BLI_blenlib.h"
62 #include "BLI_array.h"
63 #include "BLI_utildefines.h"
64 #include "BLI_smallhash.h"
65
66 #include "BKE_DerivedMesh.h"
67 #include "BKE_action.h"
68 #include "BKE_armature.h"
69 #include "BKE_bmesh.h"
70 #include "BKE_constraint.h"
71 #include "BKE_context.h"
72 #include "BKE_curve.h"
73 #include "BKE_depsgraph.h"
74 #include "BKE_fcurve.h"
75 #include "BKE_global.h"
76 #include "BKE_gpencil.h"
77 #include "BKE_key.h"
78 #include "BKE_main.h"
79 #include "BKE_modifier.h"
80 #include "BKE_movieclip.h"
81 #include "BKE_nla.h"
82 #include "BKE_node.h"
83 #include "BKE_object.h"
84 #include "BKE_particle.h"
85 #include "BKE_pointcache.h"
86 #include "BKE_report.h"
87 #include "BKE_scene.h"
88 #include "BKE_sequencer.h"
89 #include "BKE_tessmesh.h"
90 #include "BKE_tracking.h"
91 #include "BKE_mask.h"
92
93
94 #include "ED_anim_api.h"
95 #include "ED_armature.h"
96 #include "ED_particle.h"
97 #include "ED_image.h"
98 #include "ED_keyframing.h"
99 #include "ED_keyframes_edit.h"
100 #include "ED_object.h"
101 #include "ED_markers.h"
102 #include "ED_mesh.h"
103 #include "ED_node.h"
104 #include "ED_types.h"
105 #include "ED_uvedit.h"
106 #include "ED_clip.h"
107 #include "ED_mask.h"
108 #include "ED_util.h"  /* for crazyspace correction */
109
110 #include "WM_api.h"  /* for WM_event_add_notifier to deal with stabilization nodes */
111 #include "WM_types.h"
112
113 #include "UI_view2d.h"
114
115 #include "RNA_access.h"
116
117 #include "transform.h"
118 #include "bmesh.h"
119
120 #include "BLO_sys_types.h" // for intptr_t support
121
122 /* local function prototype - for Object/Bone Constraints */
123 static short constraints_list_needinv(TransInfo *t, ListBase *list);
124
125 /* ************************** Functions *************************** */
126
127 static void qsort_trans_data(TransInfo *t, TransData *head, TransData *tail, TransData *temp)
128 {
129         TransData *ihead = head;
130         TransData *itail = tail;
131         *temp = *head;
132
133         while (head < tail) {
134                 if (t->flag & T_PROP_CONNECTED) {
135                         while ((tail->dist >= temp->dist) && (head < tail))
136                                 tail--;
137                 }
138                 else {
139                         while ((tail->rdist >= temp->rdist) && (head < tail))
140                                 tail--;
141                 }
142
143                 if (head != tail) {
144                         *head = *tail;
145                         head++;
146                 }
147
148                 if (t->flag & T_PROP_CONNECTED) {
149                         while ((head->dist <= temp->dist) && (head < tail))
150                                 head++;
151                 }
152                 else {
153                         while ((head->rdist <= temp->rdist) && (head < tail))
154                                 head++;
155                 }
156
157                 if (head != tail) {
158                         *tail = *head;
159                         tail--;
160                 }
161         }
162
163         *head = *temp;
164         if (ihead < head) {
165                 qsort_trans_data(t, ihead, head - 1, temp);
166         }
167         if (itail > head) {
168                 qsort_trans_data(t, head + 1, itail, temp);
169         }
170 }
171
172 void sort_trans_data_dist(TransInfo *t)
173 {
174         TransData temp;
175         TransData *start = t->data;
176         int i = 1;
177
178         while (i < t->total && start->flag & TD_SELECTED) {
179                 start++;
180                 i++;
181         }
182         qsort_trans_data(t, start, t->data + t->total - 1, &temp);
183 }
184
185 static void sort_trans_data(TransInfo *t)
186 {
187         TransData *sel, *unsel;
188         TransData temp;
189         unsel = t->data;
190         sel = t->data;
191         sel += t->total - 1;
192         while (sel > unsel) {
193                 while (unsel->flag & TD_SELECTED) {
194                         unsel++;
195                         if (unsel == sel) {
196                                 return;
197                         }
198                 }
199                 while (!(sel->flag & TD_SELECTED)) {
200                         sel--;
201                         if (unsel == sel) {
202                                 return;
203                         }
204                 }
205                 temp = *unsel;
206                 *unsel = *sel;
207                 *sel = temp;
208                 sel--;
209                 unsel++;
210         }
211 }
212
213 /* distance calculated from not-selected vertex to nearest selected vertex
214  * warning; this is loops inside loop, has minor N^2 issues, but by sorting list it is OK */
215 static void set_prop_dist(TransInfo *t, short with_dist)
216 {
217         TransData *tob;
218         int a;
219
220         for (a = 0, tob = t->data; a < t->total; a++, tob++) {
221
222                 tob->rdist = 0.0f; // init, it was mallocced
223
224                 if ((tob->flag & TD_SELECTED) == 0) {
225                         TransData *td;
226                         int i;
227                         float dist, vec[3];
228
229                         tob->rdist = -1.0f; // signal for next loop
230
231                         for (i = 0, td = t->data; i < t->total; i++, td++) {
232                                 if (td->flag & TD_SELECTED) {
233                                         sub_v3_v3v3(vec, tob->center, td->center);
234                                         mul_m3_v3(tob->mtx, vec);
235                                         dist = normalize_v3(vec);
236                                         if (tob->rdist == -1.0f) {
237                                                 tob->rdist = dist;
238                                         }
239                                         else if (dist < tob->rdist) {
240                                                 tob->rdist = dist;
241                                         }
242                                 }
243                                 else break;  // by definition transdata has selected items in beginning
244                         }
245                         if (with_dist) {
246                                 tob->dist = tob->rdist;
247                         }
248                 }
249         }
250 }
251
252 /* ************************** CONVERSIONS ************************* */
253
254 /* ********************* texture space ********* */
255
256 static void createTransTexspace(TransInfo *t)
257 {
258         Scene *scene = t->scene;
259         TransData *td;
260         Object *ob;
261         ID *id;
262         short *texflag;
263
264         ob = OBACT;
265
266         if (ob == NULL) { // Shouldn't logically happen, but still...
267                 t->total = 0;
268                 return;
269         }
270
271         id = ob->data;
272         if (id == NULL || !ELEM3(GS(id->name), ID_ME, ID_CU, ID_MB)) {
273                 t->total = 0;
274                 return;
275         }
276
277         t->total = 1;
278         td = t->data = MEM_callocN(sizeof(TransData), "TransTexspace");
279         td->ext = t->ext = MEM_callocN(sizeof(TransDataExtension), "TransTexspace");
280
281         td->flag = TD_SELECTED;
282         copy_v3_v3(td->center, ob->obmat[3]);
283         td->ob = ob;
284
285         copy_m3_m4(td->mtx, ob->obmat);
286         copy_m3_m4(td->axismtx, ob->obmat);
287         normalize_m3(td->axismtx);
288         invert_m3_m3(td->smtx, td->mtx);
289
290         if (BKE_object_obdata_texspace_get(ob, &texflag, &td->loc, &td->ext->size, &td->ext->rot)) {
291                 ob->dtx |= OB_TEXSPACE;
292                 *texflag &= ~ME_AUTOSPACE;
293         }
294
295         copy_v3_v3(td->iloc, td->loc);
296         copy_v3_v3(td->ext->irot, td->ext->rot);
297         copy_v3_v3(td->ext->isize, td->ext->size);
298 }
299
300 /* ********************* edge (for crease) ***** */
301
302 static void createTransEdge(TransInfo *t)
303 {
304         BMEditMesh *em = BMEdit_FromObject(t->obedit);
305         TransData *td = NULL;
306         BMEdge *eed;
307         BMIter iter;
308         float mtx[3][3], smtx[3][3];
309         int count = 0, countsel = 0;
310         int propmode = t->flag & T_PROP_EDIT;
311
312         BM_ITER_MESH (eed, &iter, em->bm, BM_EDGES_OF_MESH) {
313                 if (!BM_elem_flag_test(eed, BM_ELEM_HIDDEN)) {
314                         if (BM_elem_flag_test(eed, BM_ELEM_SELECT)) countsel++;
315                         if (propmode) count++;
316                 }
317         }
318
319         if (countsel == 0)
320                 return;
321
322         if (propmode) {
323                 t->total = count;
324         }
325         else {
326                 t->total = countsel;
327         }
328
329         td = t->data = MEM_callocN(t->total * sizeof(TransData), "TransCrease");
330
331         copy_m3_m4(mtx, t->obedit->obmat);
332         invert_m3_m3(smtx, mtx);
333
334         BM_ITER_MESH (eed, &iter, em->bm, BM_EDGES_OF_MESH) {
335                 if (!BM_elem_flag_test(eed, BM_ELEM_HIDDEN) && (BM_elem_flag_test(eed, BM_ELEM_SELECT) || propmode)) { 
336                         float *bweight = CustomData_bmesh_get(&em->bm->edata, eed->head.data, CD_BWEIGHT);
337                         float *crease = CustomData_bmesh_get(&em->bm->edata, eed->head.data, CD_CREASE);
338                         
339                         /* need to set center for center calculations */
340                         add_v3_v3v3(td->center, eed->v1->co, eed->v2->co);
341                         mul_v3_fl(td->center, 0.5f);
342
343                         td->loc = NULL;
344                         if (BM_elem_flag_test(eed, BM_ELEM_SELECT))
345                                 td->flag = TD_SELECTED;
346                         else
347                                 td->flag = 0;
348
349
350                         copy_m3_m3(td->smtx, smtx);
351                         copy_m3_m3(td->mtx, mtx);
352
353                         td->ext = NULL;
354                         if (t->mode == TFM_BWEIGHT) {
355                                 td->val = bweight;
356                                 td->ival = bweight ? *bweight : 1.0f;
357                         }
358                         else {
359                                 td->val = crease;
360                                 td->ival = crease ? *crease : 0.0f;
361                         }
362
363                         td++;
364                 }
365         }
366 }
367
368 /* ********************* pose mode ************* */
369
370 static bKinematicConstraint *has_targetless_ik(bPoseChannel *pchan)
371 {
372         bConstraint *con = pchan->constraints.first;
373
374         for (; con; con = con->next) {
375                 if (con->type == CONSTRAINT_TYPE_KINEMATIC && (con->enforce != 0.0f)) {
376                         bKinematicConstraint *data = con->data;
377
378                         if (data->tar == NULL)
379                                 return data;
380                         if (data->tar->type == OB_ARMATURE && data->subtarget[0] == 0)
381                                 return data;
382                 }
383         }
384         return NULL;
385 }
386
387 static short apply_targetless_ik(Object *ob)
388 {
389         bPoseChannel *pchan, *parchan, *chanlist[256];
390         bKinematicConstraint *data;
391         int segcount, apply = 0;
392
393         /* now we got a difficult situation... we have to find the
394          * target-less IK pchans, and apply transformation to the all
395          * pchans that were in the chain */
396
397         for (pchan = ob->pose->chanbase.first; pchan; pchan = pchan->next) {
398                 data = has_targetless_ik(pchan);
399                 if (data && (data->flag & CONSTRAINT_IK_AUTO)) {
400
401                         /* fill the array with the bones of the chain (armature.c does same, keep it synced) */
402                         segcount = 0;
403
404                         /* exclude tip from chain? */
405                         if (!(data->flag & CONSTRAINT_IK_TIP))
406                                 parchan = pchan->parent;
407                         else
408                                 parchan = pchan;
409
410                         /* Find the chain's root & count the segments needed */
411                         for (; parchan; parchan = parchan->parent) {
412                                 chanlist[segcount] = parchan;
413                                 segcount++;
414
415                                 if (segcount == data->rootbone || segcount > 255) break;  // 255 is weak
416                         }
417                         for (; segcount; segcount--) {
418                                 Bone *bone;
419                                 float rmat[4][4] /*, tmat[4][4], imat[4][4]*/;
420
421                                 /* pose_mat(b) = pose_mat(b-1) * offs_bone * channel * constraint * IK  */
422                                 /* we put in channel the entire result of rmat= (channel * constraint * IK) */
423                                 /* pose_mat(b) = pose_mat(b-1) * offs_bone * rmat  */
424                                 /* rmat = pose_mat(b) * inv(pose_mat(b-1) * offs_bone ) */
425
426                                 parchan = chanlist[segcount - 1];
427                                 bone = parchan->bone;
428                                 bone->flag |= BONE_TRANSFORM;   /* ensures it gets an auto key inserted */
429
430                                 BKE_armature_mat_pose_to_bone(parchan, parchan->pose_mat, rmat);
431
432                                 /* apply and decompose, doesn't work for constraints or non-uniform scale well */
433                                 {
434                                         float rmat3[3][3], qrmat[3][3], imat3[3][3], smat[3][3];
435                                         
436                                         copy_m3_m4(rmat3, rmat);
437                                         
438                                         /* rotation */
439                                         /* [#22409] is partially caused by this, as slight numeric error introduced during
440                                          * the solving process leads to locked-axis values changing. However, we cannot modify
441                                          * the values here, or else there are huge discreptancies between IK-solver (interactive)
442                                          * and applied poses.
443                                          */
444                                         if (parchan->rotmode > 0)
445                                                 mat3_to_eulO(parchan->eul, parchan->rotmode, rmat3);
446                                         else if (parchan->rotmode == ROT_MODE_AXISANGLE)
447                                                 mat3_to_axis_angle(parchan->rotAxis, &parchan->rotAngle, rmat3);
448                                         else
449                                                 mat3_to_quat(parchan->quat, rmat3);
450                                         
451                                         /* for size, remove rotation */
452                                         /* causes problems with some constraints (so apply only if needed) */
453                                         if (data->flag & CONSTRAINT_IK_STRETCH) {
454                                                 if (parchan->rotmode > 0)
455                                                         eulO_to_mat3(qrmat, parchan->eul, parchan->rotmode);
456                                                 else if (parchan->rotmode == ROT_MODE_AXISANGLE)
457                                                         axis_angle_to_mat3(qrmat, parchan->rotAxis, parchan->rotAngle);
458                                                 else
459                                                         quat_to_mat3(qrmat, parchan->quat);
460                                                 
461                                                 invert_m3_m3(imat3, qrmat);
462                                                 mul_m3_m3m3(smat, rmat3, imat3);
463                                                 mat3_to_size(parchan->size, smat);
464                                         }
465                                         
466                                         /* causes problems with some constraints (e.g. childof), so disable this */
467                                         /* as it is IK shouldn't affect location directly */
468                                         /* copy_v3_v3(parchan->loc, rmat[3]); */
469                                 }
470
471                         }
472
473                         apply = 1;
474                         data->flag &= ~CONSTRAINT_IK_AUTO;
475                 }
476         }
477
478         return apply;
479 }
480
481 static void add_pose_transdata(TransInfo *t, bPoseChannel *pchan, Object *ob, TransData *td)
482 {
483         Bone *bone = pchan->bone;
484         float pmat[3][3], omat[3][3];
485         float cmat[3][3], tmat[3][3];
486         float vec[3];
487
488         copy_v3_v3(vec, pchan->pose_mat[3]);
489         copy_v3_v3(td->center, vec);
490
491         td->ob = ob;
492         td->flag = TD_SELECTED;
493         if (bone->flag & BONE_HINGE_CHILD_TRANSFORM) {
494                 td->flag |= TD_NOCENTER;
495         }
496
497         if (bone->flag & BONE_TRANSFORM_CHILD) {
498                 td->flag |= TD_NOCENTER;
499                 td->flag |= TD_NO_LOC;
500         }
501
502         td->protectflag = pchan->protectflag;
503
504         td->loc = pchan->loc;
505         copy_v3_v3(td->iloc, pchan->loc);
506
507         td->ext->size = pchan->size;
508         copy_v3_v3(td->ext->isize, pchan->size);
509
510         if (pchan->rotmode > 0) {
511                 td->ext->rot = pchan->eul;
512                 td->ext->rotAxis = NULL;
513                 td->ext->rotAngle = NULL;
514                 td->ext->quat = NULL;
515                 
516                 copy_v3_v3(td->ext->irot, pchan->eul);
517         }
518         else if (pchan->rotmode == ROT_MODE_AXISANGLE) {
519                 td->ext->rot = NULL;
520                 td->ext->rotAxis = pchan->rotAxis;
521                 td->ext->rotAngle = &pchan->rotAngle;
522                 td->ext->quat = NULL;
523                 
524                 td->ext->irotAngle = pchan->rotAngle;
525                 copy_v3_v3(td->ext->irotAxis, pchan->rotAxis);
526         }
527         else {
528                 td->ext->rot = NULL;
529                 td->ext->rotAxis = NULL;
530                 td->ext->rotAngle = NULL;
531                 td->ext->quat = pchan->quat;
532                 
533                 copy_qt_qt(td->ext->iquat, pchan->quat);
534         }
535         td->ext->rotOrder = pchan->rotmode;
536
537
538         /* proper way to get parent transform + own transform + constraints transform */
539         copy_m3_m4(omat, ob->obmat);
540
541         /* New code, using "generic" BKE_pchan_to_pose_mat(). */
542         {
543                 float rotscale_mat[4][4], loc_mat[4][4];
544                 float rpmat[3][3];
545
546                 BKE_pchan_to_pose_mat(pchan, rotscale_mat, loc_mat);
547                 if (t->mode == TFM_TRANSLATION)
548                         copy_m3_m4(pmat, loc_mat);
549                 else
550                         copy_m3_m4(pmat, rotscale_mat);
551
552                 /* Grrr! Exceptional case: When translating pose bones that are either Hinge or NoLocal,
553                  * and want align snapping, we just need both loc_mat and rotscale_mat.
554                  * So simply always store rotscale mat in td->ext, and always use it to apply rotations...
555                  * Ugly to need such hacks! :/ */
556                 copy_m3_m4(rpmat, rotscale_mat);
557
558                 if (constraints_list_needinv(t, &pchan->constraints)) {
559                         copy_m3_m4(tmat, pchan->constinv);
560                         invert_m3_m3(cmat, tmat);
561                         mul_serie_m3(td->mtx, pmat, omat, cmat, NULL, NULL, NULL, NULL, NULL);
562                         mul_serie_m3(td->ext->r_mtx, rpmat, omat, cmat, NULL, NULL, NULL, NULL, NULL);
563                 }
564                 else {
565                         mul_serie_m3(td->mtx, pmat, omat, NULL, NULL, NULL, NULL, NULL, NULL);
566                         mul_serie_m3(td->ext->r_mtx, rpmat, omat, NULL, NULL, NULL, NULL, NULL, NULL);
567                 }
568                 invert_m3_m3(td->ext->r_smtx, td->ext->r_mtx);
569         }
570
571         invert_m3_m3(td->smtx, td->mtx);
572
573         /* exceptional case: rotate the pose bone which also applies transformation
574          * when a parentless bone has BONE_NO_LOCAL_LOCATION [] */
575         if (!ELEM(t->mode, TFM_TRANSLATION, TFM_RESIZE) && (pchan->bone->flag & BONE_NO_LOCAL_LOCATION)) {
576                 if (pchan->parent) {
577                         /* same as td->smtx but without pchan->bone->bone_mat */
578                         td->flag |= TD_PBONE_LOCAL_MTX_C;
579                         mul_m3_m3m3(td->ext->l_smtx, pchan->bone->bone_mat, td->smtx);
580                 }
581                 else {
582                         td->flag |= TD_PBONE_LOCAL_MTX_P;
583                 }
584         }
585         
586         /* for axismat we use bone's own transform */
587         copy_m3_m4(pmat, pchan->pose_mat);
588         mul_m3_m3m3(td->axismtx, omat, pmat);
589         normalize_m3(td->axismtx);
590
591         if (t->mode == TFM_BONESIZE) {
592                 bArmature *arm = t->poseobj->data;
593
594                 if (arm->drawtype == ARM_ENVELOPE) {
595                         td->loc = NULL;
596                         td->val = &bone->dist;
597                         td->ival = bone->dist;
598                 }
599                 else {
600                         // abusive storage of scale in the loc pointer :)
601                         td->loc = &bone->xwidth;
602                         copy_v3_v3(td->iloc, td->loc);
603                         td->val = NULL;
604                 }
605         }
606
607         /* in this case we can do target-less IK grabbing */
608         if (t->mode == TFM_TRANSLATION) {
609                 bKinematicConstraint *data = has_targetless_ik(pchan);
610                 if (data) {
611                         if (data->flag & CONSTRAINT_IK_TIP) {
612                                 copy_v3_v3(data->grabtarget, pchan->pose_tail);
613                         }
614                         else {
615                                 copy_v3_v3(data->grabtarget, pchan->pose_head);
616                         }
617                         td->loc = data->grabtarget;
618                         copy_v3_v3(td->iloc, td->loc);
619                         data->flag |= CONSTRAINT_IK_AUTO;
620
621                         /* only object matrix correction */
622                         copy_m3_m3(td->mtx, omat);
623                         invert_m3_m3(td->smtx, td->mtx);
624                 }
625         }
626
627         /* store reference to first constraint */
628         td->con = pchan->constraints.first;
629 }
630
631 static void bone_children_clear_transflag(int mode, short around, ListBase *lb)
632 {
633         Bone *bone = lb->first;
634
635         for (; bone; bone = bone->next) {
636                 if ((bone->flag & BONE_HINGE) && (bone->flag & BONE_CONNECTED)) {
637                         bone->flag |= BONE_HINGE_CHILD_TRANSFORM;
638                 }
639                 else if ((bone->flag & BONE_TRANSFORM) &&
640                          (mode == TFM_ROTATION || mode == TFM_TRACKBALL) &&
641                          (around == V3D_LOCAL))
642                 {
643                         bone->flag |= BONE_TRANSFORM_CHILD;
644                 }
645                 else {
646                         bone->flag &= ~BONE_TRANSFORM;
647                 }
648
649                 bone_children_clear_transflag(mode, around, &bone->childbase);
650         }
651 }
652
653 /* sets transform flags in the bones
654  * returns total number of bones with BONE_TRANSFORM */
655 int count_set_pose_transflags(int *out_mode, short around, Object *ob)
656 {
657         bArmature *arm = ob->data;
658         bPoseChannel *pchan;
659         Bone *bone;
660         int mode = *out_mode;
661         int hastranslation = 0;
662         int total = 0;
663
664         for (pchan = ob->pose->chanbase.first; pchan; pchan = pchan->next) {
665                 bone = pchan->bone;
666                 if (PBONE_VISIBLE(arm, bone)) {
667                         if ((bone->flag & BONE_SELECTED))
668                                 bone->flag |= BONE_TRANSFORM;
669                         else
670                                 bone->flag &= ~BONE_TRANSFORM;
671                         
672                         bone->flag &= ~BONE_HINGE_CHILD_TRANSFORM;
673                         bone->flag &= ~BONE_TRANSFORM_CHILD;
674                 }
675                 else
676                         bone->flag &= ~BONE_TRANSFORM;
677         }
678
679         /* make sure no bone can be transformed when a parent is transformed */
680         /* since pchans are depsgraph sorted, the parents are in beginning of list */
681         if (mode != TFM_BONESIZE) {
682                 for (pchan = ob->pose->chanbase.first; pchan; pchan = pchan->next) {
683                         bone = pchan->bone;
684                         if (bone->flag & BONE_TRANSFORM)
685                                 bone_children_clear_transflag(mode, around, &bone->childbase);
686                 }
687         }
688         /* now count, and check if we have autoIK or have to switch from translate to rotate */
689         hastranslation = 0;
690
691         for (pchan = ob->pose->chanbase.first; pchan; pchan = pchan->next) {
692                 bone = pchan->bone;
693                 if (bone->flag & BONE_TRANSFORM) {
694                         total++;
695                         
696                         if (mode == TFM_TRANSLATION) {
697                                 if (has_targetless_ik(pchan) == NULL) {
698                                         if (pchan->parent && (pchan->bone->flag & BONE_CONNECTED)) {
699                                                 if (pchan->bone->flag & BONE_HINGE_CHILD_TRANSFORM)
700                                                         hastranslation = 1;
701                                         }
702                                         else if ((pchan->protectflag & OB_LOCK_LOC) != OB_LOCK_LOC)
703                                                 hastranslation = 1;
704                                 }
705                                 else
706                                         hastranslation = 1;
707                         }
708                 }
709         }
710
711         /* if there are no translatable bones, do rotation */
712         if (mode == TFM_TRANSLATION && !hastranslation) {
713                 *out_mode = TFM_ROTATION;
714         }
715
716         return total;
717 }
718
719
720 /* -------- Auto-IK ---------- */
721
722 /* adjust pose-channel's auto-ik chainlen */
723 static void pchan_autoik_adjust(bPoseChannel *pchan, short chainlen)
724 {
725         bConstraint *con;
726
727         /* don't bother to search if no valid constraints */
728         if ((pchan->constflag & (PCHAN_HAS_IK | PCHAN_HAS_TARGET)) == 0)
729                 return;
730
731         /* check if pchan has ik-constraint */
732         for (con = pchan->constraints.first; con; con = con->next) {
733                 if (con->type == CONSTRAINT_TYPE_KINEMATIC && (con->enforce != 0.0f)) {
734                         bKinematicConstraint *data = con->data;
735                         
736                         /* only accept if a temporary one (for auto-ik) */
737                         if (data->flag & CONSTRAINT_IK_TEMP) {
738                                 /* chainlen is new chainlen, but is limited by maximum chainlen */
739                                 if ((chainlen == 0) || (chainlen > data->max_rootbone))
740                                         data->rootbone = data->max_rootbone;
741                                 else
742                                         data->rootbone = chainlen;
743                         }
744                 }
745         }
746 }
747
748 /* change the chain-length of auto-ik */
749 void transform_autoik_update(TransInfo *t, short mode)
750 {
751         short *chainlen = &t->settings->autoik_chainlen;
752         bPoseChannel *pchan;
753
754         /* mode determines what change to apply to chainlen */
755         if (mode == 1) {
756                 /* mode=1 is from WHEELMOUSEDOWN... increases len */
757                 (*chainlen)++;
758         }
759         else if (mode == -1) {
760                 /* mode==-1 is from WHEELMOUSEUP... decreases len */
761                 if (*chainlen > 0) (*chainlen)--;
762         }
763
764         /* sanity checks (don't assume t->poseobj is set, or that it is an armature) */
765         if (ELEM(NULL, t->poseobj, t->poseobj->pose))
766                 return;
767
768         /* apply to all pose-channels */
769         for (pchan = t->poseobj->pose->chanbase.first; pchan; pchan = pchan->next) {
770                 pchan_autoik_adjust(pchan, *chainlen);
771         }
772 }
773
774 /* frees temporal IKs */
775 static void pose_grab_with_ik_clear(Object *ob)
776 {
777         bKinematicConstraint *data;
778         bPoseChannel *pchan;
779         bConstraint *con, *next;
780
781         for (pchan = ob->pose->chanbase.first; pchan; pchan = pchan->next) {
782                 /* clear all temporary lock flags */
783                 pchan->ikflag &= ~(BONE_IK_NO_XDOF_TEMP | BONE_IK_NO_YDOF_TEMP | BONE_IK_NO_ZDOF_TEMP);
784                 
785                 pchan->constflag &= ~(PCHAN_HAS_IK | PCHAN_HAS_TARGET);
786                 
787                 /* remove all temporary IK-constraints added */
788                 for (con = pchan->constraints.first; con; con = next) {
789                         next = con->next;
790                         if (con->type == CONSTRAINT_TYPE_KINEMATIC) {
791                                 data = con->data;
792                                 if (data->flag & CONSTRAINT_IK_TEMP) {
793                                         BLI_remlink(&pchan->constraints, con);
794                                         MEM_freeN(con->data);
795                                         MEM_freeN(con);
796                                         continue;
797                                 }
798                                 pchan->constflag |= PCHAN_HAS_IK;
799                                 if (data->tar == NULL || (data->tar->type == OB_ARMATURE && data->subtarget[0] == 0))
800                                         pchan->constflag |= PCHAN_HAS_TARGET;
801                         }
802                 }
803         }
804 }
805
806 /* adds the IK to pchan - returns if added */
807 static short pose_grab_with_ik_add(bPoseChannel *pchan)
808 {
809         bKinematicConstraint *targetless = NULL;
810         bKinematicConstraint *data;
811         bConstraint *con;
812
813         /* Sanity check */
814         if (pchan == NULL)
815                 return 0;
816
817         /* Rule: not if there's already an IK on this channel */
818         for (con = pchan->constraints.first; con; con = con->next) {
819                 if (con->type == CONSTRAINT_TYPE_KINEMATIC) {
820                         data = con->data;
821                         
822                         if (data->tar == NULL || (data->tar->type == OB_ARMATURE && data->subtarget[0] == '\0')) {
823                                 /* make reference to constraint to base things off later (if it's the last targetless constraint encountered) */
824                                 targetless = (bKinematicConstraint *)con->data;
825                                 
826                                 /* but, if this is a targetless IK, we make it auto anyway (for the children loop) */
827                                 if (con->enforce != 0.0f) {
828                                         data->flag |= CONSTRAINT_IK_AUTO;
829                                         
830                                         /* if no chain length has been specified, just make things obey standard rotation locks too */
831                                         if (data->rootbone == 0) {
832                                                 for (; pchan; pchan = pchan->parent) {
833                                                         /* here, we set ik-settings for bone from pchan->protectflag */
834                                                         // XXX: careful with quats/axis-angle rotations where we're locking 4d components
835                                                         if (pchan->protectflag & OB_LOCK_ROTX) pchan->ikflag |= BONE_IK_NO_XDOF_TEMP;
836                                                         if (pchan->protectflag & OB_LOCK_ROTY) pchan->ikflag |= BONE_IK_NO_YDOF_TEMP;
837                                                         if (pchan->protectflag & OB_LOCK_ROTZ) pchan->ikflag |= BONE_IK_NO_ZDOF_TEMP;
838                                                 }
839                                         }
840                                         
841                                         return 0; 
842                                 }
843                         }
844                         
845                         if ((con->flag & CONSTRAINT_DISABLE) == 0 && (con->enforce != 0.0f))
846                                 return 0;
847                 }
848         }
849
850         con = add_pose_constraint(NULL, pchan, "TempConstraint", CONSTRAINT_TYPE_KINEMATIC);
851         pchan->constflag |= (PCHAN_HAS_IK | PCHAN_HAS_TARGET);    /* for draw, but also for detecting while pose solving */
852         data = con->data;
853         if (targetless) { 
854                 /* if exists, use values from last targetless (but disabled) IK-constraint as base */
855                 *data = *targetless;
856         }
857         else
858                 data->flag = CONSTRAINT_IK_TIP;
859         data->flag |= CONSTRAINT_IK_TEMP | CONSTRAINT_IK_AUTO;
860         copy_v3_v3(data->grabtarget, pchan->pose_tail);
861         data->rootbone = 0; /* watch-it! has to be 0 here, since we're still on the same bone for the first time through the loop [#25885] */
862         
863         /* we only include bones that are part of a continual connected chain */
864         while (pchan) {
865                 /* here, we set ik-settings for bone from pchan->protectflag */
866                 // XXX: careful with quats/axis-angle rotations where we're locking 4d components
867                 if (pchan->protectflag & OB_LOCK_ROTX) pchan->ikflag |= BONE_IK_NO_XDOF_TEMP;
868                 if (pchan->protectflag & OB_LOCK_ROTY) pchan->ikflag |= BONE_IK_NO_YDOF_TEMP;
869                 if (pchan->protectflag & OB_LOCK_ROTZ) pchan->ikflag |= BONE_IK_NO_ZDOF_TEMP;
870                 
871                 /* now we count this pchan as being included */
872                 data->rootbone++;
873                 
874                 /* continue to parent, but only if we're connected to it */
875                 if (pchan->bone->flag & BONE_CONNECTED)
876                         pchan = pchan->parent;
877                 else
878                         pchan = NULL;
879         }
880
881         /* make a copy of maximum chain-length */
882         data->max_rootbone = data->rootbone;
883
884         return 1;
885 }
886
887 /* bone is a candidate to get IK, but we don't do it if it has children connected */
888 static short pose_grab_with_ik_children(bPose *pose, Bone *bone)
889 {
890         Bone *bonec;
891         short wentdeeper = 0, added = 0;
892
893         /* go deeper if children & children are connected */
894         for (bonec = bone->childbase.first; bonec; bonec = bonec->next) {
895                 if (bonec->flag & BONE_CONNECTED) {
896                         wentdeeper = 1;
897                         added += pose_grab_with_ik_children(pose, bonec);
898                 }
899         }
900         if (wentdeeper == 0) {
901                 bPoseChannel *pchan = BKE_pose_channel_find_name(pose, bone->name);
902                 if (pchan)
903                         added += pose_grab_with_ik_add(pchan);
904         }
905
906         return added;
907 }
908
909 /* main call which adds temporal IK chains */
910 static short pose_grab_with_ik(Object *ob)
911 {
912         bArmature *arm;
913         bPoseChannel *pchan, *parent;
914         Bone *bonec;
915         short tot_ik = 0;
916
917         if ((ob == NULL) || (ob->pose == NULL) || (ob->mode & OB_MODE_POSE) == 0)
918                 return 0;
919
920         arm = ob->data;
921
922         /* Rule: allow multiple Bones (but they must be selected, and only one ik-solver per chain should get added) */
923         for (pchan = ob->pose->chanbase.first; pchan; pchan = pchan->next) {
924                 if (pchan->bone->layer & arm->layer) {
925                         if (pchan->bone->flag & BONE_SELECTED) {
926                                 /* Rule: no IK for solitatry (unconnected) bones */
927                                 for (bonec = pchan->bone->childbase.first; bonec; bonec = bonec->next) {
928                                         if (bonec->flag & BONE_CONNECTED) {
929                                                 break;
930                                         }
931                                 }
932                                 if ((pchan->bone->flag & BONE_CONNECTED) == 0 && (bonec == NULL))
933                                         continue;
934
935                                 /* rule: if selected Bone is not a root bone, it gets a temporal IK */
936                                 if (pchan->parent) {
937                                         /* only adds if there's no IK yet (and no parent bone was selected) */
938                                         for (parent = pchan->parent; parent; parent = parent->parent) {
939                                                 if (parent->bone->flag & BONE_SELECTED)
940                                                         break;
941                                         }
942                                         if (parent == NULL)
943                                                 tot_ik += pose_grab_with_ik_add(pchan);
944                                 }
945                                 else {
946                                         /* rule: go over the children and add IK to the tips */
947                                         tot_ik += pose_grab_with_ik_children(ob->pose, pchan->bone);
948                                 }
949                         }
950                 }
951         }
952
953         return (tot_ik) ? 1 : 0;
954 }
955
956
957 /* only called with pose mode active object now */
958 static void createTransPose(TransInfo *t, Object *ob)
959 {
960         bArmature *arm;
961         bPoseChannel *pchan;
962         TransData *td;
963         TransDataExtension *tdx;
964         short ik_on = 0;
965         int i;
966
967         t->total = 0;
968
969         /* check validity of state */
970         arm = BKE_armature_from_object(ob);
971         if ((arm == NULL) || (ob->pose == NULL)) return;
972
973         if (arm->flag & ARM_RESTPOS) {
974                 if (ELEM(t->mode, TFM_DUMMY, TFM_BONESIZE) == 0) {
975                         // XXX use transform operator reports
976                         // BKE_report(op->reports, RPT_ERROR, "Can't select linked when sync selection is enabled");
977                         return;
978                 }
979         }
980
981         /* do we need to add temporal IK chains? */
982         if ((arm->flag & ARM_AUTO_IK) && t->mode == TFM_TRANSLATION) {
983                 ik_on = pose_grab_with_ik(ob);
984                 if (ik_on) t->flag |= T_AUTOIK;
985         }
986
987         /* set flags and count total (warning, can change transform to rotate) */
988         t->total = count_set_pose_transflags(&t->mode, t->around, ob);
989
990         if (t->total == 0) return;
991
992         t->flag |= T_POSE;
993         t->poseobj = ob; /* we also allow non-active objects to be transformed, in weightpaint */
994
995         /* init trans data */
996         td = t->data = MEM_callocN(t->total * sizeof(TransData), "TransPoseBone");
997         tdx = t->ext = MEM_callocN(t->total * sizeof(TransDataExtension), "TransPoseBoneExt");
998         for (i = 0; i < t->total; i++, td++, tdx++) {
999                 td->ext = tdx;
1000                 td->val = NULL;
1001         }
1002
1003         /* use pose channels to fill trans data */
1004         td = t->data;
1005         for (pchan = ob->pose->chanbase.first; pchan; pchan = pchan->next) {
1006                 if (pchan->bone->flag & BONE_TRANSFORM) {
1007                         add_pose_transdata(t, pchan, ob, td);
1008                         td++;
1009                 }
1010         }
1011
1012         if (td != (t->data + t->total)) {
1013                 // XXX use transform operator reports
1014                 // BKE_report(op->reports, RPT_DEBUG, "Bone selection count error");
1015         }
1016
1017         /* initialize initial auto=ik chainlen's? */
1018         if (ik_on) transform_autoik_update(t, 0);
1019 }
1020
1021 /* ********************* armature ************** */
1022
1023 static void createTransArmatureVerts(TransInfo *t)
1024 {
1025         EditBone *ebo;
1026         bArmature *arm = t->obedit->data;
1027         ListBase *edbo = arm->edbo;
1028         TransData *td;
1029         float mtx[3][3], smtx[3][3], delta[3], bonemat[3][3];
1030         
1031         /* special hack for envelope drawmode and scaling:
1032          *  to allow scaling the size of the envelope around single points,
1033          *      mode should become TFM_BONE_ENVELOPE in this case
1034          */
1035         // TODO: maybe we need a separate hotkey for it, but this is consistent with 2.4x for now
1036         if ((t->mode == TFM_RESIZE) && (arm->drawtype == ARM_ENVELOPE))
1037                 t->mode = TFM_BONE_ENVELOPE;
1038         
1039         t->total = 0;
1040         for (ebo = edbo->first; ebo; ebo = ebo->next) {
1041                 if (EBONE_VISIBLE(arm, ebo) && !(ebo->flag & BONE_EDITMODE_LOCKED)) {
1042                         if (t->mode == TFM_BONESIZE) {
1043                                 if (ebo->flag & BONE_SELECTED)
1044                                         t->total++;
1045                         }
1046                         else if (t->mode == TFM_BONE_ROLL) {
1047                                 if (ebo->flag & BONE_SELECTED)
1048                                         t->total++;
1049                         }
1050                         else {
1051                                 if (ebo->flag & BONE_TIPSEL)
1052                                         t->total++;
1053                                 if (ebo->flag & BONE_ROOTSEL)
1054                                         t->total++;
1055                         }
1056                 }
1057         }
1058
1059         if (!t->total) return;
1060
1061         copy_m3_m4(mtx, t->obedit->obmat);
1062         invert_m3_m3(smtx, mtx);
1063
1064         td = t->data = MEM_callocN(t->total * sizeof(TransData), "TransEditBone");
1065
1066         for (ebo = edbo->first; ebo; ebo = ebo->next) {
1067                 ebo->oldlength = ebo->length;   // length==0.0 on extrude, used for scaling radius of bone points
1068
1069                 if (EBONE_VISIBLE(arm, ebo) && !(ebo->flag & BONE_EDITMODE_LOCKED)) {
1070                         if (t->mode == TFM_BONE_ENVELOPE) {
1071                                 if (ebo->flag & BONE_ROOTSEL) {
1072                                         td->val = &ebo->rad_head;
1073                                         td->ival = *td->val;
1074
1075                                         copy_v3_v3(td->center, ebo->head);
1076                                         td->flag = TD_SELECTED;
1077
1078                                         copy_m3_m3(td->smtx, smtx);
1079                                         copy_m3_m3(td->mtx, mtx);
1080
1081                                         td->loc = NULL;
1082                                         td->ext = NULL;
1083                                         td->ob = t->obedit;
1084
1085                                         td++;
1086                                 }
1087                                 if (ebo->flag & BONE_TIPSEL) {
1088                                         td->val = &ebo->rad_tail;
1089                                         td->ival = *td->val;
1090                                         copy_v3_v3(td->center, ebo->tail);
1091                                         td->flag = TD_SELECTED;
1092
1093                                         copy_m3_m3(td->smtx, smtx);
1094                                         copy_m3_m3(td->mtx, mtx);
1095
1096                                         td->loc = NULL;
1097                                         td->ext = NULL;
1098                                         td->ob = t->obedit;
1099
1100                                         td++;
1101                                 }
1102
1103                         }
1104                         else if (t->mode == TFM_BONESIZE) {
1105                                 if (ebo->flag & BONE_SELECTED) {
1106                                         if (arm->drawtype == ARM_ENVELOPE) {
1107                                                 td->loc = NULL;
1108                                                 td->val = &ebo->dist;
1109                                                 td->ival = ebo->dist;
1110                                         }
1111                                         else {
1112                                                 // abusive storage of scale in the loc pointer :)
1113                                                 td->loc = &ebo->xwidth;
1114                                                 copy_v3_v3(td->iloc, td->loc);
1115                                                 td->val = NULL;
1116                                         }
1117                                         copy_v3_v3(td->center, ebo->head);
1118                                         td->flag = TD_SELECTED;
1119
1120                                         /* use local bone matrix */
1121                                         sub_v3_v3v3(delta, ebo->tail, ebo->head);
1122                                         vec_roll_to_mat3(delta, ebo->roll, bonemat);
1123                                         mul_m3_m3m3(td->mtx, mtx, bonemat);
1124                                         invert_m3_m3(td->smtx, td->mtx);
1125
1126                                         copy_m3_m3(td->axismtx, td->mtx);
1127                                         normalize_m3(td->axismtx);
1128
1129                                         td->ext = NULL;
1130                                         td->ob = t->obedit;
1131
1132                                         td++;
1133                                 }
1134                         }
1135                         else if (t->mode == TFM_BONE_ROLL) {
1136                                 if (ebo->flag & BONE_SELECTED) {
1137                                         td->loc = NULL;
1138                                         td->val = &(ebo->roll);
1139                                         td->ival = ebo->roll;
1140
1141                                         copy_v3_v3(td->center, ebo->head);
1142                                         td->flag = TD_SELECTED;
1143
1144                                         td->ext = NULL;
1145                                         td->ob = t->obedit;
1146
1147                                         td++;
1148                                 }
1149                         }
1150                         else {
1151                                 if (ebo->flag & BONE_TIPSEL) {
1152                                         copy_v3_v3(td->iloc, ebo->tail);
1153                                         copy_v3_v3(td->center, (t->around == V3D_LOCAL) ? ebo->head : td->iloc);
1154                                         td->loc = ebo->tail;
1155                                         td->flag = TD_SELECTED;
1156                                         if (ebo->flag & BONE_EDITMODE_LOCKED)
1157                                                 td->protectflag = OB_LOCK_LOC | OB_LOCK_ROT | OB_LOCK_SCALE;
1158
1159                                         copy_m3_m3(td->smtx, smtx);
1160                                         copy_m3_m3(td->mtx, mtx);
1161
1162                                         sub_v3_v3v3(delta, ebo->tail, ebo->head);
1163                                         vec_roll_to_mat3(delta, ebo->roll, td->axismtx);
1164
1165                                         if ((ebo->flag & BONE_ROOTSEL) == 0) {
1166                                                 td->extra = ebo;
1167                                         }
1168
1169                                         td->ext = NULL;
1170                                         td->val = NULL;
1171                                         td->ob = t->obedit;
1172
1173                                         td++;
1174                                 }
1175                                 if (ebo->flag & BONE_ROOTSEL) {
1176                                         copy_v3_v3(td->iloc, ebo->head);
1177                                         copy_v3_v3(td->center, td->iloc);
1178                                         td->loc = ebo->head;
1179                                         td->flag = TD_SELECTED;
1180                                         if (ebo->flag & BONE_EDITMODE_LOCKED)
1181                                                 td->protectflag = OB_LOCK_LOC | OB_LOCK_ROT | OB_LOCK_SCALE;
1182
1183                                         copy_m3_m3(td->smtx, smtx);
1184                                         copy_m3_m3(td->mtx, mtx);
1185
1186                                         sub_v3_v3v3(delta, ebo->tail, ebo->head);
1187                                         vec_roll_to_mat3(delta, ebo->roll, td->axismtx);
1188
1189                                         td->extra = ebo; /* to fix roll */
1190
1191                                         td->ext = NULL;
1192                                         td->val = NULL;
1193                                         td->ob = t->obedit;
1194
1195                                         td++;
1196                                 }
1197                         }
1198                 }
1199         }
1200 }
1201
1202 /* ********************* meta elements ********* */
1203
1204 static void createTransMBallVerts(TransInfo *t)
1205 {
1206         MetaBall *mb = (MetaBall *)t->obedit->data;
1207         MetaElem *ml;
1208         TransData *td;
1209         TransDataExtension *tx;
1210         float mtx[3][3], smtx[3][3];
1211         int count = 0, countsel = 0;
1212         int propmode = t->flag & T_PROP_EDIT;
1213
1214         /* count totals */
1215         for (ml = mb->editelems->first; ml; ml = ml->next) {
1216                 if (ml->flag & SELECT) countsel++;
1217                 if (propmode) count++;
1218         }
1219
1220         /* note: in prop mode we need at least 1 selected */
1221         if (countsel == 0) return;
1222
1223         if (propmode) t->total = count;
1224         else t->total = countsel;
1225
1226         td = t->data = MEM_callocN(t->total * sizeof(TransData), "TransObData(MBall EditMode)");
1227         tx = t->ext = MEM_callocN(t->total * sizeof(TransDataExtension), "MetaElement_TransExtension");
1228
1229         copy_m3_m4(mtx, t->obedit->obmat);
1230         invert_m3_m3(smtx, mtx);
1231
1232         for (ml = mb->editelems->first; ml; ml = ml->next) {
1233                 if (propmode || (ml->flag & SELECT)) {
1234                         td->loc = &ml->x;
1235                         copy_v3_v3(td->iloc, td->loc);
1236                         copy_v3_v3(td->center, td->loc);
1237
1238                         if (ml->flag & SELECT) td->flag = TD_SELECTED | TD_USEQUAT | TD_SINGLESIZE;
1239                         else td->flag = TD_USEQUAT;
1240
1241                         copy_m3_m3(td->smtx, smtx);
1242                         copy_m3_m3(td->mtx, mtx);
1243
1244                         td->ext = tx;
1245
1246                         /* Radius of MetaElem (mass of MetaElem influence) */
1247                         if (ml->flag & MB_SCALE_RAD) {
1248                                 td->val = &ml->rad;
1249                                 td->ival = ml->rad;
1250                         }
1251                         else {
1252                                 td->val = &ml->s;
1253                                 td->ival = ml->s;
1254                         }
1255
1256                         /* expx/expy/expz determine "shape" of some MetaElem types */
1257                         tx->size = &ml->expx;
1258                         tx->isize[0] = ml->expx;
1259                         tx->isize[1] = ml->expy;
1260                         tx->isize[2] = ml->expz;
1261
1262                         /* quat is used for rotation of MetaElem */
1263                         tx->quat = ml->quat;
1264                         copy_qt_qt(tx->iquat, ml->quat);
1265
1266                         tx->rot = NULL;
1267
1268                         td++;
1269                         tx++;
1270                 }
1271         }
1272 }
1273
1274 /* ********************* curve/surface ********* */
1275
1276 static void calc_distanceCurveVerts(TransData *head, TransData *tail)
1277 {
1278         TransData *td, *td_near = NULL;
1279         for (td = head; td <= tail; td++) {
1280                 if (td->flag & TD_SELECTED) {
1281                         td_near = td;
1282                         td->dist = 0.0f;
1283                 }
1284                 else if (td_near) {
1285                         float dist;
1286                         dist = len_v3v3(td_near->center, td->center);
1287                         if (dist < (td - 1)->dist) {
1288                                 td->dist = (td - 1)->dist;
1289                         }
1290                         else {
1291                                 td->dist = dist;
1292                         }
1293                 }
1294                 else {
1295                         td->dist = MAXFLOAT;
1296                         td->flag |= TD_NOTCONNECTED;
1297                 }
1298         }
1299         td_near = NULL;
1300         for (td = tail; td >= head; td--) {
1301                 if (td->flag & TD_SELECTED) {
1302                         td_near = td;
1303                         td->dist = 0.0f;
1304                 }
1305                 else if (td_near) {
1306                         float dist;
1307                         dist = len_v3v3(td_near->center, td->center);
1308                         if (td->flag & TD_NOTCONNECTED || dist < td->dist || (td + 1)->dist < td->dist) {
1309                                 td->flag &= ~TD_NOTCONNECTED;
1310                                 if (dist < (td + 1)->dist) {
1311                                         td->dist = (td + 1)->dist;
1312                                 }
1313                                 else {
1314                                         td->dist = dist;
1315                                 }
1316                         }
1317                 }
1318         }
1319 }
1320
1321 /* Utility function for getting the handle data from bezier's */
1322 static TransDataCurveHandleFlags *initTransDataCurveHandles(TransData *td, struct BezTriple *bezt)
1323 {
1324         TransDataCurveHandleFlags *hdata;
1325         td->flag |= TD_BEZTRIPLE;
1326         hdata = td->hdata = MEM_mallocN(sizeof(TransDataCurveHandleFlags), "CuHandle Data");
1327         hdata->ih1 = bezt->h1;
1328         hdata->h1 = &bezt->h1;
1329         hdata->ih2 = bezt->h2; /* in case the second is not selected */
1330         hdata->h2 = &bezt->h2;
1331         return hdata;
1332 }
1333
1334 static void createTransCurveVerts(bContext *C, TransInfo *t)
1335 {
1336         Object *obedit = CTX_data_edit_object(C);
1337         Curve *cu = obedit->data;
1338         TransData *td = NULL;
1339         Nurb *nu;
1340         BezTriple *bezt;
1341         BPoint *bp;
1342         float mtx[3][3], smtx[3][3];
1343         int a;
1344         int count = 0, countsel = 0;
1345         int propmode = t->flag & T_PROP_EDIT;
1346         short hide_handles = (cu->drawflag & CU_HIDE_HANDLES);
1347         ListBase *nurbs;
1348
1349         /* to be sure */
1350         if (cu->editnurb == NULL) return;
1351
1352         /* count total of vertices, check identical as in 2nd loop for making transdata! */
1353         nurbs = BKE_curve_editNurbs_get(cu);
1354         for (nu = nurbs->first; nu; nu = nu->next) {
1355                 if (nu->type == CU_BEZIER) {
1356                         for (a = 0, bezt = nu->bezt; a < nu->pntsu; a++, bezt++) {
1357                                 if (bezt->hide == 0) {
1358                                         if (hide_handles) {
1359                                                 if (bezt->f2 & SELECT) countsel += 3;
1360                                                 if (propmode) count += 3;
1361                                         }
1362                                         else {
1363                                                 if (bezt->f1 & SELECT) countsel++;
1364                                                 if (bezt->f2 & SELECT) countsel++;
1365                                                 if (bezt->f3 & SELECT) countsel++;
1366                                                 if (propmode) count += 3;
1367                                         }
1368                                 }
1369                         }
1370                 }
1371                 else {
1372                         for (a = nu->pntsu * nu->pntsv, bp = nu->bp; a > 0; a--, bp++) {
1373                                 if (bp->hide == 0) {
1374                                         if (propmode) count++;
1375                                         if (bp->f1 & SELECT) countsel++;
1376                                 }
1377                         }
1378                 }
1379         }
1380         /* note: in prop mode we need at least 1 selected */
1381         if (countsel == 0) return;
1382
1383         if (propmode) t->total = count;
1384         else t->total = countsel;
1385         t->data = MEM_callocN(t->total * sizeof(TransData), "TransObData(Curve EditMode)");
1386
1387         copy_m3_m4(mtx, t->obedit->obmat);
1388         invert_m3_m3(smtx, mtx);
1389
1390         td = t->data;
1391         for (nu = nurbs->first; nu; nu = nu->next) {
1392                 if (nu->type == CU_BEZIER) {
1393                         TransData *head, *tail;
1394                         head = tail = td;
1395                         for (a = 0, bezt = nu->bezt; a < nu->pntsu; a++, bezt++) {
1396                                 if (bezt->hide == 0) {
1397                                         TransDataCurveHandleFlags *hdata = NULL;
1398
1399                                         if (propmode ||
1400                                             ((bezt->f2 & SELECT) && hide_handles) ||
1401                                             ((bezt->f1 & SELECT) && hide_handles == 0))
1402                                         {
1403                                                 copy_v3_v3(td->iloc, bezt->vec[0]);
1404                                                 td->loc = bezt->vec[0];
1405                                                 copy_v3_v3(td->center, bezt->vec[(hide_handles || bezt->f2 & SELECT) ? 1 : 0]);
1406                                                 if (hide_handles) {
1407                                                         if (bezt->f2 & SELECT) td->flag = TD_SELECTED;
1408                                                         else td->flag = 0;
1409                                                 }
1410                                                 else {
1411                                                         if (bezt->f1 & SELECT) td->flag = TD_SELECTED;
1412                                                         else td->flag = 0;
1413                                                 }
1414                                                 td->ext = NULL;
1415                                                 td->val = NULL;
1416
1417                                                 hdata = initTransDataCurveHandles(td, bezt);
1418
1419                                                 copy_m3_m3(td->smtx, smtx);
1420                                                 copy_m3_m3(td->mtx, mtx);
1421
1422                                                 td++;
1423                                                 count++;
1424                                                 tail++;
1425                                         }
1426
1427                                         /* This is the Curve Point, the other two are handles */
1428                                         if (propmode || (bezt->f2 & SELECT)) {
1429                                                 copy_v3_v3(td->iloc, bezt->vec[1]);
1430                                                 td->loc = bezt->vec[1];
1431                                                 copy_v3_v3(td->center, td->loc);
1432                                                 if (bezt->f2 & SELECT) td->flag = TD_SELECTED;
1433                                                 else td->flag = 0;
1434                                                 td->ext = NULL;
1435
1436                                                 if (t->mode == TFM_CURVE_SHRINKFATTEN) { /* || t->mode==TFM_RESIZE) {*/ /* TODO - make points scale */
1437                                                         td->val = &(bezt->radius);
1438                                                         td->ival = bezt->radius;
1439                                                 }
1440                                                 else if (t->mode == TFM_TILT) {
1441                                                         td->val = &(bezt->alfa);
1442                                                         td->ival = bezt->alfa;
1443                                                 }
1444                                                 else {
1445                                                         td->val = NULL;
1446                                                 }
1447
1448                                                 copy_m3_m3(td->smtx, smtx);
1449                                                 copy_m3_m3(td->mtx, mtx);
1450
1451                                                 if ((bezt->f1 & SELECT) == 0 && (bezt->f3 & SELECT) == 0)
1452                                                         /* If the middle is selected but the sides arnt, this is needed */
1453                                                         if (hdata == NULL) { /* if the handle was not saved by the previous handle */
1454                                                                 hdata = initTransDataCurveHandles(td, bezt);
1455                                                         }
1456
1457                                                 td++;
1458                                                 count++;
1459                                                 tail++;
1460                                         }
1461                                         if (propmode ||
1462                                             ((bezt->f2 & SELECT) && hide_handles) ||
1463                                             ((bezt->f3 & SELECT) && hide_handles == 0))
1464                                         {
1465                                                 copy_v3_v3(td->iloc, bezt->vec[2]);
1466                                                 td->loc = bezt->vec[2];
1467                                                 copy_v3_v3(td->center, bezt->vec[(hide_handles || bezt->f2 & SELECT) ? 1 : 2]);
1468                                                 if (hide_handles) {
1469                                                         if (bezt->f2 & SELECT) td->flag = TD_SELECTED;
1470                                                         else td->flag = 0;
1471                                                 }
1472                                                 else {
1473                                                         if (bezt->f3 & SELECT) td->flag = TD_SELECTED;
1474                                                         else td->flag = 0;
1475                                                 }
1476                                                 td->ext = NULL;
1477                                                 td->val = NULL;
1478
1479                                                 if (hdata == NULL) { /* if the handle was not saved by the previous handle */
1480                                                         hdata = initTransDataCurveHandles(td, bezt);
1481                                                 }
1482
1483                                                 copy_m3_m3(td->smtx, smtx);
1484                                                 copy_m3_m3(td->mtx, mtx);
1485
1486                                                 td++;
1487                                                 count++;
1488                                                 tail++;
1489                                         }
1490                                 }
1491                                 else if (propmode && head != tail) {
1492                                         calc_distanceCurveVerts(head, tail - 1);
1493                                         head = tail;
1494                                 }
1495                         }
1496                         if (propmode && head != tail)
1497                                 calc_distanceCurveVerts(head, tail - 1);
1498
1499                         /* TODO - in the case of tilt and radius we can also avoid allocating the initTransDataCurveHandles
1500                          * but for now just don't change handle types */
1501                         if (ELEM(t->mode, TFM_CURVE_SHRINKFATTEN, TFM_TILT) == 0) {
1502                                 /* sets the handles based on their selection, do this after the data is copied to the TransData */
1503                                 BKE_nurb_handles_test(nu);
1504                         }
1505                 }
1506                 else {
1507                         TransData *head, *tail;
1508                         head = tail = td;
1509                         for (a = nu->pntsu * nu->pntsv, bp = nu->bp; a > 0; a--, bp++) {
1510                                 if (bp->hide == 0) {
1511                                         if (propmode || (bp->f1 & SELECT)) {
1512                                                 copy_v3_v3(td->iloc, bp->vec);
1513                                                 td->loc = bp->vec;
1514                                                 copy_v3_v3(td->center, td->loc);
1515                                                 if (bp->f1 & SELECT) td->flag = TD_SELECTED;
1516                                                 else td->flag = 0;
1517                                                 td->ext = NULL;
1518
1519                                                 if (t->mode == TFM_CURVE_SHRINKFATTEN || t->mode == TFM_RESIZE) {
1520                                                         td->val = &(bp->radius);
1521                                                         td->ival = bp->radius;
1522                                                 }
1523                                                 else {
1524                                                         td->val = &(bp->alfa);
1525                                                         td->ival = bp->alfa;
1526                                                 }
1527
1528                                                 copy_m3_m3(td->smtx, smtx);
1529                                                 copy_m3_m3(td->mtx, mtx);
1530
1531                                                 td++;
1532                                                 count++;
1533                                                 tail++;
1534                                         }
1535                                 }
1536                                 else if (propmode && head != tail) {
1537                                         calc_distanceCurveVerts(head, tail - 1);
1538                                         head = tail;
1539                                 }
1540                         }
1541                         if (propmode && head != tail)
1542                                 calc_distanceCurveVerts(head, tail - 1);
1543                 }
1544         }
1545 }
1546
1547 /* ********************* lattice *************** */
1548
1549 static void createTransLatticeVerts(TransInfo *t)
1550 {
1551         Lattice *latt = ((Lattice *)t->obedit->data)->editlatt->latt;
1552         TransData *td = NULL;
1553         BPoint *bp;
1554         float mtx[3][3], smtx[3][3];
1555         int a;
1556         int count = 0, countsel = 0;
1557         int propmode = t->flag & T_PROP_EDIT;
1558
1559         bp = latt->def;
1560         a  = latt->pntsu * latt->pntsv * latt->pntsw;
1561         while (a--) {
1562                 if (bp->hide == 0) {
1563                         if (bp->f1 & SELECT) countsel++;
1564                         if (propmode) count++;
1565                 }
1566                 bp++;
1567         }
1568
1569         /* note: in prop mode we need at least 1 selected */
1570         if (countsel == 0) return;
1571
1572         if (propmode) t->total = count;
1573         else t->total = countsel;
1574         t->data = MEM_callocN(t->total * sizeof(TransData), "TransObData(Lattice EditMode)");
1575
1576         copy_m3_m4(mtx, t->obedit->obmat);
1577         invert_m3_m3(smtx, mtx);
1578
1579         td = t->data;
1580         bp = latt->def;
1581         a  = latt->pntsu * latt->pntsv * latt->pntsw;
1582         while (a--) {
1583                 if (propmode || (bp->f1 & SELECT)) {
1584                         if (bp->hide == 0) {
1585                                 copy_v3_v3(td->iloc, bp->vec);
1586                                 td->loc = bp->vec;
1587                                 copy_v3_v3(td->center, td->loc);
1588                                 if (bp->f1 & SELECT) td->flag = TD_SELECTED;
1589                                 else td->flag = 0;
1590                                 copy_m3_m3(td->smtx, smtx);
1591                                 copy_m3_m3(td->mtx, mtx);
1592
1593                                 td->ext = NULL;
1594                                 td->val = NULL;
1595
1596                                 td++;
1597                                 count++;
1598                         }
1599                 }
1600                 bp++;
1601         }
1602 }
1603
1604 /* ******************* particle edit **************** */
1605 static void createTransParticleVerts(bContext *C, TransInfo *t)
1606 {
1607         TransData *td = NULL;
1608         TransDataExtension *tx;
1609         Base *base = CTX_data_active_base(C);
1610         Object *ob = CTX_data_active_object(C);
1611         ParticleEditSettings *pset = PE_settings(t->scene);
1612         PTCacheEdit *edit = PE_get_current(t->scene, ob);
1613         ParticleSystem *psys = NULL;
1614         ParticleSystemModifierData *psmd = NULL;
1615         PTCacheEditPoint *point;
1616         PTCacheEditKey *key;
1617         float mat[4][4];
1618         int i, k, transformparticle;
1619         int count = 0, hasselected = 0;
1620         int propmode = t->flag & T_PROP_EDIT;
1621
1622         if (edit == NULL || t->settings->particle.selectmode == SCE_SELECT_PATH) return;
1623
1624         psys = edit->psys;
1625
1626         if (psys)
1627                 psmd = psys_get_modifier(ob, psys);
1628
1629         base->flag |= BA_HAS_RECALC_DATA;
1630
1631         for (i = 0, point = edit->points; i < edit->totpoint; i++, point++) {
1632                 point->flag &= ~PEP_TRANSFORM;
1633                 transformparticle = 0;
1634
1635                 if ((point->flag & PEP_HIDE) == 0) {
1636                         for (k = 0, key = point->keys; k < point->totkey; k++, key++) {
1637                                 if ((key->flag & PEK_HIDE) == 0) {
1638                                         if (key->flag & PEK_SELECT) {
1639                                                 hasselected = 1;
1640                                                 transformparticle = 1;
1641                                         }
1642                                         else if (propmode)
1643                                                 transformparticle = 1;
1644                                 }
1645                         }
1646                 }
1647
1648                 if (transformparticle) {
1649                         count += point->totkey;
1650                         point->flag |= PEP_TRANSFORM;
1651                 }
1652         }
1653
1654         /* note: in prop mode we need at least 1 selected */
1655         if (hasselected == 0) return;
1656
1657         t->total = count;
1658         td = t->data = MEM_callocN(t->total * sizeof(TransData), "TransObData(Particle Mode)");
1659
1660         if (t->mode == TFM_BAKE_TIME)
1661                 tx = t->ext = MEM_callocN(t->total * sizeof(TransDataExtension), "Particle_TransExtension");
1662         else
1663                 tx = t->ext = NULL;
1664
1665         unit_m4(mat);
1666
1667         invert_m4_m4(ob->imat, ob->obmat);
1668
1669         for (i = 0, point = edit->points; i < edit->totpoint; i++, point++) {
1670                 TransData *head, *tail;
1671                 head = tail = td;
1672
1673                 if (!(point->flag & PEP_TRANSFORM)) continue;
1674
1675                 if (psys && !(psys->flag & PSYS_GLOBAL_HAIR))
1676                         psys_mat_hair_to_global(ob, psmd->dm, psys->part->from, psys->particles + i, mat);
1677
1678                 for (k = 0, key = point->keys; k < point->totkey; k++, key++) {
1679                         if (key->flag & PEK_USE_WCO) {
1680                                 copy_v3_v3(key->world_co, key->co);
1681                                 mul_m4_v3(mat, key->world_co);
1682                                 td->loc = key->world_co;
1683                         }
1684                         else
1685                                 td->loc = key->co;
1686
1687                         copy_v3_v3(td->iloc, td->loc);
1688                         copy_v3_v3(td->center, td->loc);
1689
1690                         if (key->flag & PEK_SELECT)
1691                                 td->flag |= TD_SELECTED;
1692                         else if (!propmode)
1693                                 td->flag |= TD_SKIP;
1694
1695                         unit_m3(td->mtx);
1696                         unit_m3(td->smtx);
1697
1698                         /* don't allow moving roots */
1699                         if (k == 0 && pset->flag & PE_LOCK_FIRST && (!psys || !(psys->flag & PSYS_GLOBAL_HAIR)))
1700                                 td->protectflag |= OB_LOCK_LOC;
1701
1702                         td->ob = ob;
1703                         td->ext = tx;
1704                         if (t->mode == TFM_BAKE_TIME) {
1705                                 td->val = key->time;
1706                                 td->ival = *(key->time);
1707                                 /* abuse size and quat for min/max values */
1708                                 td->flag |= TD_NO_EXT;
1709                                 if (k == 0) tx->size = NULL;
1710                                 else tx->size = (key - 1)->time;
1711
1712                                 if (k == point->totkey - 1) tx->quat = NULL;
1713                                 else tx->quat = (key + 1)->time;
1714                         }
1715
1716                         td++;
1717                         if (tx)
1718                                 tx++;
1719                         tail++;
1720                 }
1721                 if (propmode && head != tail)
1722                         calc_distanceCurveVerts(head, tail - 1);
1723         }
1724 }
1725
1726 void flushTransParticles(TransInfo *t)
1727 {
1728         Scene *scene = t->scene;
1729         Object *ob = OBACT;
1730         PTCacheEdit *edit = PE_get_current(scene, ob);
1731         ParticleSystem *psys = edit->psys;
1732         ParticleSystemModifierData *psmd = NULL;
1733         PTCacheEditPoint *point;
1734         PTCacheEditKey *key;
1735         TransData *td;
1736         float mat[4][4], imat[4][4], co[3];
1737         int i, k, propmode = t->flag & T_PROP_EDIT;
1738
1739         if (psys)
1740                 psmd = psys_get_modifier(ob, psys);
1741
1742         /* we do transform in world space, so flush world space position
1743          * back to particle local space (only for hair particles) */
1744         td = t->data;
1745         for (i = 0, point = edit->points; i < edit->totpoint; i++, point++, td++) {
1746                 if (!(point->flag & PEP_TRANSFORM)) continue;
1747
1748                 if (psys && !(psys->flag & PSYS_GLOBAL_HAIR)) {
1749                         psys_mat_hair_to_global(ob, psmd->dm, psys->part->from, psys->particles + i, mat);
1750                         invert_m4_m4(imat, mat);
1751
1752                         for (k = 0, key = point->keys; k < point->totkey; k++, key++) {
1753                                 copy_v3_v3(co, key->world_co);
1754                                 mul_m4_v3(imat, co);
1755
1756
1757                                 /* optimization for proportional edit */
1758                                 if (!propmode || !compare_v3v3(key->co, co, 0.0001f)) {
1759                                         copy_v3_v3(key->co, co);
1760                                         point->flag |= PEP_EDIT_RECALC;
1761                                 }
1762                         }
1763                 }
1764                 else
1765                         point->flag |= PEP_EDIT_RECALC;
1766         }
1767
1768         PE_update_object(scene, OBACT, 1);
1769 }
1770
1771 /* ********************* mesh ****************** */
1772
1773 /* proportional distance based on connectivity  */
1774 #define THRESHOLDFACTOR (1.0f - 0.0001f)
1775
1776 /* I did this wrong, it should be a breadth-first search
1777  * but instead it's a depth-first search, fudged
1778  * to report shortest distances.  I have no idea how fast
1779  * or slow this is. */
1780 static void editmesh_set_connectivity_distance(BMEditMesh *em, float mtx[][3], float *dists)
1781 {
1782         BMVert **queue = NULL;
1783         float *dqueue = NULL;
1784         int *tots = MEM_callocN(sizeof(int) * em->bm->totvert, "tots editmesh_set_connectivity_distance");
1785         BLI_array_declare(queue);
1786         BLI_array_declare(dqueue);
1787         SmallHash svisit, *visit = &svisit;
1788         BMVert *v;
1789         BMIter viter;
1790         int i, start;
1791         
1792         fill_vn_fl(dists, em->bm->totvert, FLT_MAX);
1793
1794         BM_mesh_elem_index_ensure(em->bm, BM_VERT);
1795
1796         BLI_smallhash_init(visit);
1797
1798         BM_ITER_MESH (v, &viter, em->bm, BM_VERTS_OF_MESH) {
1799                 if (BM_elem_flag_test(v, BM_ELEM_SELECT) == 0 || BM_elem_flag_test(v, BM_ELEM_HIDDEN))
1800                         continue;
1801                         
1802                 
1803                 BLI_smallhash_insert(visit, (uintptr_t)v, NULL);
1804                 BLI_array_append(queue, v);
1805                 BLI_array_append(dqueue, 0.0f);
1806                 dists[BM_elem_index_get(v)] = 0.0f;
1807         }
1808         
1809         start = 0;
1810         while (start < BLI_array_count(queue)) {
1811                 BMIter eiter;
1812                 BMEdge *e;
1813                 BMVert *v3, *v2;
1814                 float d, vec[3];
1815                 
1816                 v2 = queue[start];
1817                 d = dqueue[start];
1818                 
1819                 BM_ITER_ELEM (e, &eiter, v2, BM_EDGES_OF_VERT) {
1820                         float d2;
1821                         v3 = BM_edge_other_vert(e, v2);
1822                         
1823                         if (BM_elem_flag_test(v3, BM_ELEM_SELECT) || BM_elem_flag_test(v3, BM_ELEM_HIDDEN))
1824                                 continue;
1825                         
1826                         sub_v3_v3v3(vec, v2->co, v3->co);
1827                         mul_m3_v3(mtx, vec);
1828                         
1829                         d2 = d + len_v3(vec);
1830                         
1831                         if (dists[BM_elem_index_get(v3)] != FLT_MAX)
1832                                 dists[BM_elem_index_get(v3)] = MIN2(d2, dists[BM_elem_index_get(v3)]);
1833                         else
1834                                 dists[BM_elem_index_get(v3)] = d2;
1835                         
1836                         tots[BM_elem_index_get(v3)] = 1;
1837
1838                         if (BLI_smallhash_haskey(visit, (uintptr_t)v3))
1839                                 continue;
1840                         
1841                         BLI_smallhash_insert(visit, (uintptr_t)v3, NULL);
1842                         
1843                         BLI_array_append(queue, v3);
1844                         BLI_array_append(dqueue, d2);
1845                 }
1846                 
1847                 start++;
1848         }
1849
1850         BLI_smallhash_release(visit);
1851         
1852         for (i = 0; i < em->bm->totvert; i++) {
1853                 if (tots[i])
1854                         dists[i] /= (float)tots[i];
1855         }
1856         
1857         BLI_array_free(queue);
1858         BLI_array_free(dqueue);
1859         MEM_freeN(tots);
1860 }
1861
1862 /* loop-in-a-loop I know, but we need it! (ton) */
1863 static void get_face_center(float cent_r[3], BMVert *eve)
1864
1865 {
1866         BMFace *efa;
1867         BMIter iter;
1868
1869         BM_ITER_ELEM (efa, &iter, eve, BM_FACES_OF_VERT) {
1870                 if (BM_elem_flag_test(efa, BM_ELEM_SELECT)) {
1871                         BM_face_calc_center_mean(efa, cent_r);
1872                         break;
1873                 }
1874         }
1875 }
1876
1877 static void get_edge_center(float cent_r[3], BMVert *eve)
1878 {
1879         BMEdge *eed;
1880         BMIter iter;
1881
1882         BM_ITER_ELEM (eed, &iter, eve, BM_EDGES_OF_VERT) {
1883                 if (BM_elem_flag_test(eed, BM_ELEM_SELECT)) {
1884                         mid_v3_v3v3(cent_r, eed->v1->co, eed->v2->co);
1885                         break;
1886                 }
1887         }
1888 }
1889
1890 /* way to overwrite what data is edited with transform */
1891 static void VertsToTransData(TransInfo *t, TransData *td, TransDataExtension *tx,
1892                              BMEditMesh *em, BMVert *eve, float *bweight)
1893 {
1894         td->flag = 0;
1895         //if (key)
1896         //      td->loc = key->co;
1897         //else
1898         td->loc = eve->co;
1899
1900         copy_v3_v3(td->center, td->loc);
1901
1902         if (t->around == V3D_LOCAL) {
1903                 if (em->selectmode & SCE_SELECT_FACE)
1904                         get_face_center(td->center, eve);
1905                 else if (em->selectmode & SCE_SELECT_EDGE)
1906                         get_edge_center(td->center, eve);
1907         }
1908         copy_v3_v3(td->iloc, td->loc);
1909
1910         // Setting normals
1911         copy_v3_v3(td->axismtx[2], eve->no);
1912         td->axismtx[0][0]        =
1913             td->axismtx[0][1]    =
1914             td->axismtx[0][2]    =
1915             td->axismtx[1][0]    =
1916             td->axismtx[1][1]    =
1917             td->axismtx[1][2]    = 0.0f;
1918
1919         td->ext = NULL;
1920         td->val = NULL;
1921         td->extra = NULL;
1922         if (t->mode == TFM_BWEIGHT) {
1923                 td->val = bweight;
1924                 td->ival = bweight ? *(bweight) : 1.0f;
1925         }
1926         else if (t->mode == TFM_SKIN_RESIZE) {
1927                 MVertSkin *vs = CustomData_bmesh_get(&em->bm->vdata,
1928                                                      eve->head.data,
1929                                                      CD_MVERT_SKIN);
1930                 /* skin node size */
1931                 td->ext = tx;
1932                 copy_v3_v3(tx->isize, vs->radius);
1933                 tx->size = vs->radius;
1934                 td->val = vs->radius;
1935         }
1936 }
1937
1938 static void createTransEditVerts(bContext *C, TransInfo *t)
1939 {
1940         ToolSettings *ts = CTX_data_tool_settings(C);
1941         TransData *tob = NULL;
1942         TransDataExtension *tx = NULL;
1943         BMEditMesh *em = BMEdit_FromObject(t->obedit);
1944         BMesh *bm = em->bm;
1945         BMVert *eve;
1946         BMIter iter;
1947         BMVert *eve_act = NULL;
1948         float *mappedcos = NULL, *quats = NULL;
1949         float mtx[3][3], smtx[3][3], (*defmats)[3][3] = NULL, (*defcos)[3] = NULL;
1950         float *dists = NULL;
1951         int count = 0, countsel = 0, a, totleft;
1952         int propmode = (t->flag & T_PROP_EDIT) ? (t->flag & (T_PROP_EDIT | T_PROP_CONNECTED)) : 0;
1953         int mirror = 0;
1954         char *selstate = NULL;
1955         short selectmode = ts->selectmode;
1956
1957         if (t->flag & T_MIRROR) {
1958                 EDBM_verts_mirror_cache_begin(em, TRUE);
1959                 mirror = 1;
1960         }
1961
1962         /* edge slide forces edge select */
1963         if (t->mode == TFM_EDGE_SLIDE) {
1964                 selectmode = SCE_SELECT_EDGE;
1965         }
1966
1967         /* BMESH_TODO, writing into the index values is BAD!, means we cant
1968          * use the values for vertex mirror - campbell */
1969
1970         // transform now requires awareness for select mode, so we tag the f1 flags in verts
1971         if (selectmode & SCE_SELECT_VERTEX) {
1972                 BM_ITER_MESH (eve, &iter, bm, BM_VERTS_OF_MESH) {
1973                         BM_elem_flag_set(eve, BM_ELEM_TAG, BM_elem_flag_test(eve, BM_ELEM_SELECT));
1974                 }
1975         }
1976         else if (selectmode & SCE_SELECT_EDGE) {
1977                 BMEdge *eed;
1978
1979                 eve = BM_iter_new(&iter, bm, BM_VERTS_OF_MESH, NULL);
1980                 for (; eve; eve = BM_iter_step(&iter)) BM_elem_flag_disable(eve, BM_ELEM_TAG);
1981
1982                 eed = BM_iter_new(&iter, bm, BM_EDGES_OF_MESH, NULL);
1983                 for (; eed; eed = BM_iter_step(&iter)) {
1984                         if (BM_elem_flag_test(eed, BM_ELEM_SELECT)) {
1985                                 BM_elem_flag_enable(eed->v1, BM_ELEM_TAG);
1986                                 BM_elem_flag_enable(eed->v2, BM_ELEM_TAG);
1987                         }
1988                 }
1989         }
1990         else {
1991                 BMFace *efa;
1992                 eve = BM_iter_new(&iter, bm, BM_VERTS_OF_MESH, NULL);
1993                 for (; eve; eve = BM_iter_step(&iter)) BM_elem_flag_disable(eve, BM_ELEM_TAG);
1994
1995                 efa = BM_iter_new(&iter, bm, BM_FACES_OF_MESH, NULL);
1996                 for (; efa; efa = BM_iter_step(&iter)) {
1997                         if (BM_elem_flag_test(efa, BM_ELEM_SELECT)) {
1998                                 BMIter liter;
1999                                 BMLoop *l;
2000
2001                                 l = BM_iter_new(&liter, bm, BM_LOOPS_OF_FACE, efa);
2002                                 for (; l; l = BM_iter_step(&liter)) {
2003                                         BM_elem_flag_enable(l->v, BM_ELEM_TAG);
2004                                 }
2005                         }
2006                 }
2007         }
2008
2009         /* now we can count. we store selection state in selstate, since
2010          * get_crazy_mapped_editverts messes up the index state of the
2011          * verts*/
2012         selstate = MEM_callocN(sizeof(*selstate) * bm->totvert, __func__);
2013         eve = BM_iter_new(&iter, bm, BM_VERTS_OF_MESH, NULL);
2014         for (a = 0; eve; eve = BM_iter_step(&iter), a++) {
2015                 if (!BM_elem_flag_test(eve, BM_ELEM_HIDDEN)) {
2016                         if (BM_elem_flag_test(eve, BM_ELEM_TAG)) {
2017                                 selstate[a] = 1;
2018                                 countsel++;
2019                         }
2020                         if (propmode) count++;
2021                 }
2022         }
2023
2024         /* note: in prop mode we need at least 1 selected */
2025         if (countsel == 0) {
2026                 goto cleanup;
2027         }
2028
2029         /* check active */
2030         if (em->bm->selected.last) {
2031                 BMEditSelection *ese = em->bm->selected.last;
2032                 if (ese->htype == BM_VERT) {
2033                         eve_act = (BMVert *)ese->ele;
2034                 }
2035         }
2036
2037
2038         if (propmode) {
2039                 t->total = count;
2040
2041                 /* allocating scratch arrays */
2042                 if (propmode & T_PROP_CONNECTED)
2043                         dists = MEM_mallocN(em->bm->totvert * sizeof(float), "scratch nears");
2044         }
2045         else t->total = countsel;
2046
2047         tob = t->data = MEM_callocN(t->total * sizeof(TransData), "TransObData(Mesh EditMode)");
2048         if (t->mode == TFM_SKIN_RESIZE) {
2049                 tx = t->ext = MEM_callocN(t->total * sizeof(TransDataExtension),
2050                                           "TransObData ext");
2051         }
2052
2053         copy_m3_m4(mtx, t->obedit->obmat);
2054         invert_m3_m3(smtx, mtx);
2055
2056         if (propmode & T_PROP_CONNECTED) {
2057                 editmesh_set_connectivity_distance(em, mtx, dists);
2058         }
2059
2060         /* detect CrazySpace [tm] */
2061         if (modifiers_getCageIndex(t->scene, t->obedit, NULL, 1) >= 0) {
2062                 if (modifiers_isCorrectableDeformed(t->obedit)) {
2063                         /* check if we can use deform matrices for modifier from the
2064                          * start up to stack, they are more accurate than quats */
2065                         totleft = editbmesh_get_first_deform_matrices(t->scene, t->obedit, em, &defmats, &defcos);
2066
2067                         /* if we still have more modifiers, also do crazyspace
2068                          * correction with quats, relative to the coordinates after
2069                          * the modifiers that support deform matrices (defcos) */
2070                         if (totleft > 0) {
2071                                 mappedcos = crazyspace_get_mapped_editverts(t->scene, t->obedit);
2072                                 quats = MEM_mallocN((t->total) * sizeof(float) * 4, "crazy quats");
2073                                 crazyspace_set_quats_editmesh(em, (float *)defcos, mappedcos, quats); /* BMESH_TODO, abuses vertex index, should use an int array */
2074                                 if (mappedcos)
2075                                         MEM_freeN(mappedcos);
2076                         }
2077
2078                         if (defcos)
2079                                 MEM_freeN(defcos);
2080                 }
2081         }
2082
2083         /* find out which half we do */
2084         if (mirror) {
2085                 eve = BM_iter_new(&iter, bm, BM_VERTS_OF_MESH, NULL);
2086                 for (a = 0; eve; eve = BM_iter_step(&iter), a++) {
2087                         if (!BM_elem_flag_test(eve, BM_ELEM_HIDDEN) && selstate[a] && eve->co[0] != 0.0f) {
2088                                 if (eve->co[0] < 0.0f) {
2089                                         t->mirror = -1;
2090                                         mirror = -1;
2091                                 }
2092                                 break;
2093                         }
2094                 }
2095         }
2096
2097         eve = BM_iter_new(&iter, bm, BM_VERTS_OF_MESH, NULL);
2098         for (a = 0; eve; eve = BM_iter_step(&iter), a++) {
2099                 if (!BM_elem_flag_test(eve, BM_ELEM_HIDDEN)) {
2100                         if (propmode || selstate[a]) {
2101                                 float *bweight = CustomData_bmesh_get(&bm->vdata, eve->head.data, CD_BWEIGHT);
2102                                 
2103                                 VertsToTransData(t, tob, tx, em, eve, bweight);
2104                                 if (tx)
2105                                         tx++;
2106
2107                                 /* selected */
2108                                 if (selstate[a]) tob->flag |= TD_SELECTED;
2109
2110                                 /* active */
2111                                 if (eve == eve_act) tob->flag |= TD_ACTIVE;
2112
2113                                 if (propmode) {
2114                                         if (propmode & T_PROP_CONNECTED) {
2115                                                 tob->dist = dists[a];
2116                                         }
2117                                         else {
2118                                                 tob->flag |= TD_NOTCONNECTED;
2119                                                 tob->dist = MAXFLOAT;
2120                                         }
2121                                 }
2122
2123                                 /* CrazySpace */
2124                                 if (defmats || (quats && BM_elem_index_get(eve) != -1)) {
2125                                         float mat[3][3], qmat[3][3], imat[3][3];
2126
2127                                         /* use both or either quat and defmat correction */
2128                                         if (quats && BM_elem_index_get(eve) != -1) {
2129                                                 quat_to_mat3(qmat, quats + 4 * BM_elem_index_get(eve));
2130
2131                                                 if (defmats)
2132                                                         mul_serie_m3(mat, mtx, qmat, defmats[a],
2133                                                                      NULL, NULL, NULL, NULL, NULL);
2134                                                 else
2135                                                         mul_m3_m3m3(mat, mtx, qmat);
2136                                         }
2137                                         else
2138                                                 mul_m3_m3m3(mat, mtx, defmats[a]);
2139
2140                                         invert_m3_m3(imat, mat);
2141
2142                                         copy_m3_m3(tob->smtx, imat);
2143                                         copy_m3_m3(tob->mtx, mat);
2144                                 }
2145                                 else {
2146                                         copy_m3_m3(tob->smtx, smtx);
2147                                         copy_m3_m3(tob->mtx, mtx);
2148                                 }
2149
2150                                 /* Mirror? */
2151                                 if ((mirror > 0 && tob->iloc[0] > 0.0f) || (mirror < 0 && tob->iloc[0] < 0.0f)) {
2152                                         BMVert *vmir = EDBM_verts_mirror_get(em, eve); //t->obedit, em, eve, tob->iloc, a);
2153                                         if (vmir && vmir != eve) {
2154                                                 tob->extra = vmir;
2155                                         }
2156                                 }
2157                                 tob++;
2158                         }
2159                 }
2160         }
2161         
2162         if (mirror != 0) {
2163                 tob = t->data;
2164                 for (a = 0; a < t->total; a++, tob++) {
2165                         if (ABS(tob->loc[0]) <= 0.00001f) {
2166                                 tob->flag |= TD_MIRROR_EDGE;
2167                         }
2168                 }
2169         }
2170
2171 cleanup:
2172         /* crazy space free */
2173         if (quats)
2174                 MEM_freeN(quats);
2175         if (defmats)
2176                 MEM_freeN(defmats);
2177         if (dists)
2178                 MEM_freeN(dists);
2179         
2180         MEM_freeN(selstate);
2181
2182         if (t->flag & T_MIRROR) {
2183                 EDBM_verts_mirror_cache_end(em);
2184                 mirror = 1;
2185         }
2186 }
2187
2188 /* *** NODE EDITOR *** */
2189 void flushTransNodes(TransInfo *t)
2190 {
2191         int a;
2192         TransData2D *td;
2193
2194         /* flush to 2d vector from internally used 3d vector */
2195         for (a = 0, td = t->data2d; a < t->total; a++, td++) {
2196                 td->loc2d[0] = td->loc[0];
2197                 td->loc2d[1] = td->loc[1];
2198         }
2199         
2200         /* handle intersection with noodles */
2201         if (t->total == 1) {
2202                 ED_node_link_intersect_test(t->sa, 1);
2203         }
2204 }
2205
2206 /* *** SEQUENCE EDITOR *** */
2207
2208 /* commented _only_ because the meta may have animation data which
2209  * needs moving too [#28158] */
2210
2211 #define SEQ_TX_NESTED_METAS
2212
2213 void flushTransSeq(TransInfo *t)
2214 {
2215         ListBase *seqbasep = BKE_sequencer_editing_get(t->scene, FALSE)->seqbasep; /* Editing null check already done */
2216         int a, new_frame, old_start;
2217         TransData *td = NULL;
2218         TransData2D *td2d = NULL;
2219         TransDataSeq *tdsq = NULL;
2220         Sequence *seq;
2221
2222
2223
2224         /* prevent updating the same seq twice
2225          * if the transdata order is changed this will mess up
2226          * but so will TransDataSeq */
2227         Sequence *seq_prev = NULL;
2228
2229         /* flush to 2d vector from internally used 3d vector */
2230         for (a = 0, td = t->data, td2d = t->data2d; a < t->total; a++, td++, td2d++) {
2231                 tdsq = (TransDataSeq *)td->extra;
2232                 seq = tdsq->seq;
2233                 old_start = seq->start;
2234                 new_frame = (int)floor(td2d->loc[0] + 0.5f);
2235
2236                 switch (tdsq->sel_flag) {
2237                         case SELECT:
2238 #ifdef SEQ_TX_NESTED_METAS
2239                                 if ((seq->depth != 0 || seq_tx_test(seq))) /* for meta's, their children move */
2240                                         seq->start = new_frame - tdsq->start_offset;
2241 #else
2242                                 if (seq->type != SEQ_TYPE_META && (seq->depth != 0 || seq_tx_test(seq))) /* for meta's, their children move */
2243                                         seq->start = new_frame - tdsq->start_offset;
2244 #endif
2245                                 if (seq->depth == 0) {
2246                                         seq->machine = (int)floor(td2d->loc[1] + 0.5f);
2247                                         CLAMP(seq->machine, 1, MAXSEQ);
2248                                 }
2249                                 break;
2250                         case SEQ_LEFTSEL: /* no vertical transform  */
2251                                 seq_tx_set_final_left(seq, new_frame);
2252                                 seq_tx_handle_xlimits(seq, tdsq->flag & SEQ_LEFTSEL, tdsq->flag & SEQ_RIGHTSEL);
2253                                 seq_single_fix(seq); /* todo - move this into aftertrans update? - old seq tx needed it anyway */
2254                                 break;
2255                         case SEQ_RIGHTSEL: /* no vertical transform  */
2256                                 seq_tx_set_final_right(seq, new_frame);
2257                                 seq_tx_handle_xlimits(seq, tdsq->flag & SEQ_LEFTSEL, tdsq->flag & SEQ_RIGHTSEL);
2258                                 seq_single_fix(seq); /* todo - move this into aftertrans update? - old seq tx needed it anyway */
2259                                 break;
2260                 }
2261
2262                 if (seq != seq_prev) {
2263                         if (seq->depth == 0) {
2264                                 /* Calculate this strip and all nested strips
2265                                  * children are ALWAYS transformed first
2266                                  * so we don't need to do this in another loop. */
2267                                 calc_sequence(t->scene, seq);
2268                         }
2269                         else {
2270                                 calc_sequence_disp(t->scene, seq);
2271                         }
2272
2273                         if (tdsq->sel_flag == SELECT)
2274                                 seq_offset_animdata(t->scene, seq, seq->start - old_start);
2275                 }
2276                 seq_prev = seq;
2277         }
2278
2279
2280         if (ELEM(t->mode, TFM_SEQ_SLIDE, TFM_TIME_TRANSLATE)) { /* originally TFM_TIME_EXTEND, transform changes */
2281                 /* Special annoying case here, need to calc metas with TFM_TIME_EXTEND only */
2282
2283                 /* calc all meta's then effects [#27953] */
2284                 for (seq = seqbasep->first; seq; seq = seq->next) {
2285                         if (seq->type == SEQ_TYPE_META && seq->flag & SELECT) {
2286                                 calc_sequence(t->scene, seq);
2287                         }
2288                 }
2289                 for (seq = seqbasep->first; seq; seq = seq->next) {
2290                         if (seq->seq1 || seq->seq2 || seq->seq3) {
2291                                 calc_sequence(t->scene, seq);
2292                         }
2293                 }
2294         }
2295
2296         /* need to do the overlap check in a new loop otherwise adjacent strips
2297          * will not be updated and we'll get false positives */
2298         seq_prev = NULL;
2299         for (a = 0, td = t->data, td2d = t->data2d; a < t->total; a++, td++, td2d++) {
2300
2301                 tdsq = (TransDataSeq *)td->extra;
2302                 seq = tdsq->seq;
2303
2304                 if (seq != seq_prev) {
2305                         if (seq->depth == 0) {
2306                                 /* test overlap, displayes red outline */
2307                                 seq->flag &= ~SEQ_OVERLAP;
2308                                 if (seq_test_overlap(seqbasep, seq)) {
2309                                         seq->flag |= SEQ_OVERLAP;
2310                                 }
2311                         }
2312                 }
2313                 seq_prev = seq;
2314         }
2315 }
2316
2317 /* ********************* UV ****************** */
2318
2319 static void UVsToTransData(SpaceImage *sima, TransData *td, TransData2D *td2d, float *uv, int selected)
2320 {
2321         float aspx, aspy;
2322
2323         ED_space_image_uv_aspect(sima, &aspx, &aspy);
2324
2325         /* uv coords are scaled by aspects. this is needed for rotations and
2326          * proportional editing to be consistent with the stretched uv coords
2327          * that are displayed. this also means that for display and numinput,
2328          * and when the the uv coords are flushed, these are converted each time */
2329         td2d->loc[0] = uv[0] * aspx;
2330         td2d->loc[1] = uv[1] * aspy;
2331         td2d->loc[2] = 0.0f;
2332         td2d->loc2d = uv;
2333
2334         td->flag = 0;
2335         td->loc = td2d->loc;
2336         copy_v3_v3(td->center, td->loc);
2337         copy_v3_v3(td->iloc, td->loc);
2338
2339         memset(td->axismtx, 0, sizeof(td->axismtx));
2340         td->axismtx[2][2] = 1.0f;
2341
2342         td->ext = NULL; td->val = NULL;
2343
2344         if (selected) {
2345                 td->flag |= TD_SELECTED;
2346                 td->dist = 0.0;
2347         }
2348         else {
2349                 td->dist = MAXFLOAT;
2350         }
2351         unit_m3(td->mtx);
2352         unit_m3(td->smtx);
2353 }
2354
2355 static void createTransUVs(bContext *C, TransInfo *t)
2356 {
2357         SpaceImage *sima = CTX_wm_space_image(C);
2358         Image *ima = CTX_data_edit_image(C);
2359         Scene *scene = t->scene;
2360         TransData *td = NULL;
2361         TransData2D *td2d = NULL;
2362         MTexPoly *tf;
2363         MLoopUV *luv;
2364         BMEditMesh *em = BMEdit_FromObject(t->obedit);
2365         BMFace *efa;
2366         BMLoop *l;
2367         BMIter iter, liter;
2368         int count = 0, countsel = 0;
2369         int propmode = t->flag & T_PROP_EDIT;
2370
2371         if (!ED_space_image_show_uvedit(sima, t->obedit)) return;
2372
2373         /* count */
2374         BM_ITER_MESH (efa, &iter, em->bm, BM_FACES_OF_MESH) {
2375                 tf = CustomData_bmesh_get(&em->bm->pdata, efa->head.data, CD_MTEXPOLY);
2376
2377                 if (!uvedit_face_visible_test(scene, ima, efa, tf)) {
2378                         BM_elem_flag_disable(efa, BM_ELEM_TAG);
2379                         continue;
2380                 }
2381                 
2382                 BM_elem_flag_enable(efa, BM_ELEM_TAG);
2383                 BM_ITER_ELEM (l, &liter, efa, BM_LOOPS_OF_FACE) {
2384                         if (uvedit_uv_select_test(em, scene, l)) 
2385                                 countsel++;
2386
2387                         if (propmode)
2388                                 count++;
2389                 }
2390         }
2391
2392         /* note: in prop mode we need at least 1 selected */
2393         if (countsel == 0) return;
2394
2395         t->total = (propmode) ? count : countsel;
2396         t->data = MEM_callocN(t->total * sizeof(TransData), "TransObData(UV Editing)");
2397         /* for each 2d uv coord a 3d vector is allocated, so that they can be
2398          * treated just as if they were 3d verts */
2399         t->data2d = MEM_callocN(t->total * sizeof(TransData2D), "TransObData2D(UV Editing)");
2400
2401         if (sima->flag & SI_CLIP_UV)
2402                 t->flag |= T_CLIP_UV;
2403
2404         td = t->data;
2405         td2d = t->data2d;
2406
2407         BM_ITER_MESH (efa, &iter, em->bm, BM_FACES_OF_MESH) {
2408                 if (!BM_elem_flag_test(efa, BM_ELEM_TAG))
2409                         continue;
2410
2411                 BM_ITER_ELEM (l, &liter, efa, BM_LOOPS_OF_FACE) {
2412                         if (!propmode && !uvedit_uv_select_test(em, scene, l))
2413                                 continue;
2414                         
2415                         luv = CustomData_bmesh_get(&em->bm->ldata, l->head.data, CD_MLOOPUV);
2416                         UVsToTransData(sima, td++, td2d++, luv->uv, uvedit_uv_select_test(em, scene, l));
2417                 }
2418         }
2419
2420         if (sima->flag & SI_LIVE_UNWRAP)
2421                 ED_uvedit_live_unwrap_begin(t->scene, t->obedit);
2422 }
2423
2424 void flushTransUVs(TransInfo *t)
2425 {
2426         SpaceImage *sima = t->sa->spacedata.first;
2427         TransData2D *td;
2428         int a, width, height;
2429         float aspx, aspy, invx, invy;
2430
2431         ED_space_image_uv_aspect(sima, &aspx, &aspy);
2432         ED_space_image_size(sima, &width, &height);
2433         invx = 1.0f / aspx;
2434         invy = 1.0f / aspy;
2435
2436         /* flush to 2d vector from internally used 3d vector */
2437         for (a = 0, td = t->data2d; a < t->total; a++, td++) {
2438                 td->loc2d[0] = td->loc[0] * invx;
2439                 td->loc2d[1] = td->loc[1] * invy;
2440
2441                 if ((sima->flag & SI_PIXELSNAP) && (t->state != TRANS_CANCEL)) {
2442                         td->loc2d[0] = (float)floor(width * td->loc2d[0] + 0.5f) / width;
2443                         td->loc2d[1] = (float)floor(height * td->loc2d[1] + 0.5f) / height;
2444                 }
2445         }
2446 }
2447
2448 int clipUVTransform(TransInfo *t, float *vec, int resize)
2449 {
2450         TransData *td;
2451         int a, clipx = 1, clipy = 1;
2452         float aspx, aspy, min[2], max[2];
2453
2454         ED_space_image_uv_aspect(t->sa->spacedata.first, &aspx, &aspy);
2455         min[0] = min[1] = 0.0f;
2456         max[0] = aspx; max[1] = aspy;
2457
2458         for (a = 0, td = t->data; a < t->total; a++, td++) {
2459                 DO_MINMAX2(td->loc, min, max);
2460         }
2461
2462         if (resize) {
2463                 if (min[0] < 0.0f && t->center[0] > 0.0f && t->center[0] < aspx * 0.5f)
2464                         vec[0] *= t->center[0] / (t->center[0] - min[0]);
2465                 else if (max[0] > aspx && t->center[0] < aspx)
2466                         vec[0] *= (t->center[0] - aspx) / (t->center[0] - max[0]);
2467                 else
2468                         clipx = 0;
2469
2470                 if (min[1] < 0.0f && t->center[1] > 0.0f && t->center[1] < aspy * 0.5f)
2471                         vec[1] *= t->center[1] / (t->center[1] - min[1]);
2472                 else if (max[1] > aspy && t->center[1] < aspy)
2473                         vec[1] *= (t->center[1] - aspy) / (t->center[1] - max[1]);
2474                 else
2475                         clipy = 0;
2476         }
2477         else {
2478                 if (min[0] < 0.0f)
2479                         vec[0] -= min[0];
2480                 else if (max[0] > aspx)
2481                         vec[0] -= max[0] - aspx;
2482                 else
2483                         clipx = 0;
2484
2485                 if (min[1] < 0.0f)
2486                         vec[1] -= min[1];
2487                 else if (max[1] > aspy)
2488                         vec[1] -= max[1] - aspy;
2489                 else
2490                         clipy = 0;
2491         }
2492
2493         return (clipx || clipy);
2494 }
2495
2496 /* ********************* ANIMATION EDITORS (GENERAL) ************************* */
2497
2498 /* This function tests if a point is on the "mouse" side of the cursor/frame-marking */
2499 static short FrameOnMouseSide(char side, float frame, float cframe)
2500 {
2501         /* both sides, so it doesn't matter */
2502         if (side == 'B') return 1;
2503
2504         /* only on the named side */
2505         if (side == 'R')
2506                 return (frame >= cframe) ? 1 : 0;
2507         else
2508                 return (frame <= cframe) ? 1 : 0;
2509 }
2510
2511 /* ********************* NLA EDITOR ************************* */
2512
2513 static void createTransNlaData(bContext *C, TransInfo *t)
2514 {
2515         Scene *scene = t->scene;
2516         SpaceNla *snla = NULL;
2517         TransData *td = NULL;
2518         TransDataNla *tdn = NULL;
2519         
2520         bAnimContext ac;
2521         ListBase anim_data = {NULL, NULL};
2522         bAnimListElem *ale;
2523         int filter;
2524         
2525         int count = 0;
2526         
2527         /* determine what type of data we are operating on */
2528         if (ANIM_animdata_get_context(C, &ac) == 0)
2529                 return;
2530         snla = (SpaceNla *)ac.sl;
2531         
2532         /* filter data */
2533         filter = (ANIMFILTER_DATA_VISIBLE | ANIMFILTER_LIST_VISIBLE | ANIMFILTER_FOREDIT);
2534         ANIM_animdata_filter(&ac, &anim_data, filter, ac.data, ac.datatype);
2535         
2536         /* which side of the current frame should be allowed */
2537         if (t->mode == TFM_TIME_EXTEND) {
2538                 /* only side on which mouse is gets transformed */
2539                 float xmouse, ymouse;
2540                 
2541                 UI_view2d_region_to_view(&ac.ar->v2d, t->imval[0], t->imval[1], &xmouse, &ymouse);
2542                 t->frame_side = (xmouse > CFRA) ? 'R' : 'L';
2543         }
2544         else {
2545                 /* normal transform - both sides of current frame are considered */
2546                 t->frame_side = 'B';
2547         }
2548         
2549         /* loop 1: count how many strips are selected (consider each strip as 2 points) */
2550         for (ale = anim_data.first; ale; ale = ale->next) {
2551                 NlaTrack *nlt = (NlaTrack *)ale->data;
2552                 NlaStrip *strip;
2553                 
2554                 /* make some meta-strips for chains of selected strips */
2555                 BKE_nlastrips_make_metas(&nlt->strips, 1);
2556                 
2557                 /* only consider selected strips */
2558                 for (strip = nlt->strips.first; strip; strip = strip->next) {
2559                         // TODO: we can make strips have handles later on...
2560                         /* transition strips can't get directly transformed */
2561                         if (strip->type != NLASTRIP_TYPE_TRANSITION) {
2562                                 if (strip->flag & NLASTRIP_FLAG_SELECT) {
2563                                         if (FrameOnMouseSide(t->frame_side, strip->start, (float)CFRA)) count++;
2564                                         if (FrameOnMouseSide(t->frame_side, strip->end, (float)CFRA)) count++;
2565                                 }
2566                         }
2567                 }
2568         }
2569         
2570         /* stop if trying to build list if nothing selected */
2571         if (count == 0) {
2572                 /* cleanup temp list */
2573                 BLI_freelistN(&anim_data);
2574                 return;
2575         }
2576         
2577         /* allocate memory for data */
2578         t->total = count;
2579         
2580         t->data = MEM_callocN(t->total * sizeof(TransData), "TransData(NLA Editor)");
2581         td = t->data;
2582         t->customData = MEM_callocN(t->total * sizeof(TransDataNla), "TransDataNla (NLA Editor)");
2583         tdn = t->customData;
2584         t->flag |= T_FREE_CUSTOMDATA;
2585         
2586         /* loop 2: build transdata array */
2587         for (ale = anim_data.first; ale; ale = ale->next) {
2588                 /* only if a real NLA-track */
2589                 if (ale->type == ANIMTYPE_NLATRACK) {
2590                         AnimData *adt = ale->adt;
2591                         NlaTrack *nlt = (NlaTrack *)ale->data;
2592                         NlaStrip *strip;
2593                         
2594                         /* only consider selected strips */
2595                         for (strip = nlt->strips.first; strip; strip = strip->next) {
2596                                 // TODO: we can make strips have handles later on...
2597                                 /* transition strips can't get directly transformed */
2598                                 if (strip->type != NLASTRIP_TYPE_TRANSITION) {
2599                                         if (strip->flag & NLASTRIP_FLAG_SELECT) {
2600                                                 /* our transform data is constructed as follows:
2601                                                  *      - only the handles on the right side of the current-frame get included
2602                                                  *      - td structs are transform-elements operated on by the transform system
2603                                                  *        and represent a single handle. The storage/pointer used (val or loc) depends on
2604                                                  *        whether we're scaling or transforming. Ultimately though, the handles
2605                                                  *    the td writes to will simply be a dummy in tdn
2606                                                  *      - for each strip being transformed, a single tdn struct is used, so in some
2607                                                  *        cases, there will need to be 1 of these tdn elements in the array skipped...
2608                                                  */
2609                                                 float center[3], yval;
2610                                                 
2611                                                 /* firstly, init tdn settings */
2612                                                 tdn->id = ale->id;
2613                                                 tdn->oldTrack = tdn->nlt = nlt;
2614                                                 tdn->strip = strip;
2615                                                 tdn->trackIndex = BLI_findindex(&adt->nla_tracks, nlt);
2616
2617                                                 yval = (float)(tdn->trackIndex * NLACHANNEL_STEP(snla));
2618
2619                                                 tdn->h1[0] = strip->start;
2620                                                 tdn->h1[1] = yval;
2621                                                 tdn->h2[0] = strip->end;
2622                                                 tdn->h2[1] = yval;
2623
2624                                                 center[0] = (float)CFRA;
2625                                                 center[1] = yval;
2626                                                 center[2] = 0.0f;
2627                                                 
2628                                                 /* set td's based on which handles are applicable */
2629                                                 if (FrameOnMouseSide(t->frame_side, strip->start, (float)CFRA)) {
2630                                                         /* just set tdn to assume that it only has one handle for now */
2631                                                         tdn->handle = -1;
2632                                                         
2633                                                         /* now, link the transform data up to this data */
2634                                                         if (ELEM(t->mode, TFM_TRANSLATION, TFM_TIME_EXTEND)) {
2635                                                                 td->loc = tdn->h1;
2636                                                                 copy_v3_v3(td->iloc, tdn->h1);
2637                                                                 
2638                                                                 /* store all the other gunk that is required by transform */
2639                                                                 copy_v3_v3(td->center, center);
2640                                                                 memset(td->axismtx, 0, sizeof(td->axismtx));
2641                                                                 td->axismtx[2][2] = 1.0f;
2642                                                                 
2643                                                                 td->ext = NULL; td->val = NULL;
2644                                                                 
2645                                                                 td->flag |= TD_SELECTED;
2646                                                                 td->dist = 0.0f;
2647                                                                 
2648                                                                 unit_m3(td->mtx);
2649                                                                 unit_m3(td->smtx);
2650                                                         }
2651                                                         else {
2652                                                                 /* time scaling only needs single value */
2653                                                                 td->val = &tdn->h1[0];
2654                                                                 td->ival = tdn->h1[0];
2655                                                         }
2656                                                         
2657                                                         td->extra = tdn;
2658                                                         td++;
2659                                                 }
2660                                                 if (FrameOnMouseSide(t->frame_side, strip->end, (float)CFRA)) {
2661                                                         /* if tdn is already holding the start handle, then we're doing both, otherwise, only end */
2662                                                         tdn->handle = (tdn->handle) ? 2 : 1;
2663                                                         
2664                                                         /* now, link the transform data up to this data */
2665                                                         if (ELEM(t->mode, TFM_TRANSLATION, TFM_TIME_EXTEND)) {
2666                                                                 td->loc = tdn->h2;
2667                                                                 copy_v3_v3(td->iloc, tdn->h2);
2668                                                                 
2669                                                                 /* store all the other gunk that is required by transform */
2670                                                                 copy_v3_v3(td->center, center);
2671                                                                 memset(td->axismtx, 0, sizeof(td->axismtx));
2672                                                                 td->axismtx[2][2] = 1.0f;
2673                                                                 
2674                                                                 td->ext = NULL; td->val = NULL;
2675                                                                 
2676                                                                 td->flag |= TD_SELECTED;
2677                                                                 td->dist = 0.0f;
2678                                                                 
2679                                                                 unit_m3(td->mtx);
2680                                                                 unit_m3(td->smtx);
2681                                                         }
2682                                                         else {
2683                                                                 /* time scaling only needs single value */
2684                                                                 td->val = &tdn->h2[0];
2685                                                                 td->ival = tdn->h2[0];
2686                                                         }
2687                                                         
2688                                                         td->extra = tdn;
2689                                                         td++;
2690                                                 }
2691                                                 
2692                                                 /* if both handles were used, skip the next tdn (i.e. leave it blank) since the counting code is dumb...
2693                                                  * otherwise, just advance to the next one...
2694                                                  */
2695                                                 if (tdn->handle == 2)
2696                                                         tdn += 2;
2697                                                 else
2698                                                         tdn++;
2699                                         }
2700                                 }
2701                         }
2702                 }
2703         }
2704         
2705         /* cleanup temp list */
2706         BLI_freelistN(&anim_data);
2707 }
2708
2709 /* ********************* ACTION EDITOR ****************** */
2710
2711 /* Called by special_aftertrans_update to make sure selected gp-frames replace
2712  * any other gp-frames which may reside on that frame (that are not selected).
2713  * It also makes sure gp-frames are still stored in chronological order after
2714  * transform.
2715  */
2716 static void posttrans_gpd_clean(bGPdata *gpd)
2717 {
2718         bGPDlayer *gpl;
2719         
2720         for (gpl = gpd->layers.first; gpl; gpl = gpl->next) {
2721                 ListBase sel_buffer = {NULL, NULL};
2722                 bGPDframe *gpf, *gpfn;
2723                 bGPDframe *gfs, *gfsn;
2724                 
2725                 /* loop 1: loop through and isolate selected gp-frames to buffer
2726                  * (these need to be sorted as they are isolated)
2727                  */
2728                 for (gpf = gpl->frames.first; gpf; gpf = gpfn) {
2729                         short added = 0;
2730                         gpfn = gpf->next;
2731                         
2732                         if (gpf->flag & GP_FRAME_SELECT) {
2733                                 BLI_remlink(&gpl->frames, gpf);
2734                                 
2735                                 /* find place to add them in buffer
2736                                  * - go backwards as most frames will still be in order,
2737                                  *   so doing it this way will be faster
2738                                  */
2739                                 for (gfs = sel_buffer.last; gfs; gfs = gfs->prev) {
2740                                         /* if current (gpf) occurs after this one in buffer, add! */
2741                                         if (gfs->framenum < gpf->framenum) {
2742                                                 BLI_insertlinkafter(&sel_buffer, gfs, gpf);
2743                                                 added = 1;
2744                                                 break;
2745                                         }
2746                                 }
2747                                 if (added == 0)
2748                                         BLI_addhead(&sel_buffer, gpf);
2749                         }
2750                 }
2751                 
2752                 /* error checking: it is unlikely, but may be possible to have none selected */
2753                 if (sel_buffer.first == NULL)
2754                         continue;
2755                 
2756                 /* if all were selected (i.e. gpl->frames is empty), then just transfer sel-buf over */
2757                 if (gpl->frames.first == NULL) {
2758                         gpl->frames.first = sel_buffer.first;
2759                         gpl->frames.last = sel_buffer.last;
2760                         
2761                         continue;
2762                 }
2763                 
2764                 /* loop 2: remove duplicates of