fix error in node template and quiet warning.
[blender.git] / source / blender / editors / curve / editcurve.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/curve/editcurve.c
29  *  \ingroup edcurve
30  */
31
32 #include <math.h>
33 #include <string.h>
34
35 #ifndef WIN32
36 #include <unistd.h>
37 #else
38 #include <io.h>
39 #endif
40 #include <stdlib.h>
41
42 #include "DNA_key_types.h"
43 #include "DNA_object_types.h"
44 #include "DNA_scene_types.h"
45 #include "DNA_anim_types.h"
46
47 #include "MEM_guardedalloc.h"
48
49 #include "BLI_blenlib.h"
50 #include "BLI_math.h"
51 #include "BLI_dynstr.h"
52 #include "BLI_rand.h"
53 #include "BLI_utildefines.h"
54 #include "BLI_ghash.h"
55
56 #include "BKE_context.h"
57 #include "BKE_curve.h"
58 #include "BKE_depsgraph.h"
59 #include "BKE_fcurve.h"
60 #include "BKE_global.h"
61 #include "BKE_key.h"
62 #include "BKE_library.h"
63 #include "BKE_main.h"
64 #include "BKE_report.h"
65 #include "BKE_animsys.h"
66 #include "BKE_action.h"
67
68 #include "WM_api.h"
69 #include "WM_types.h"
70
71 #include "ED_keyframes_edit.h"
72 #include "ED_object.h"
73 #include "ED_screen.h"
74 #include "ED_transform.h"
75 #include "ED_types.h"
76 #include "ED_util.h"
77 #include "ED_view3d.h"
78 #include "ED_curve.h"
79
80 #include "curve_intern.h"
81
82 #include "UI_interface.h"
83 #include "UI_resources.h"
84
85 #include "RNA_access.h"
86 #include "RNA_define.h"
87 #include "RNA_enum_types.h"
88
89 /* Undo stuff */
90 typedef struct {
91         ListBase nubase;
92         void *lastsel;
93         GHash *undoIndex;
94         ListBase fcurves, drivers;
95         int actnu;
96 } UndoCurve;
97
98 /* Definitions needed for shape keys */
99 typedef struct {
100         void *orig_cv;
101         int key_index, nu_index, pt_index;
102         int switched;
103         Nurb *orig_nu;
104 } CVKeyIndex;
105
106 void selectend_nurb(Object *obedit, short selfirst, short doswap, short selstatus);
107 static void select_adjacent_cp(ListBase *editnurb, short next, short cont, short selstatus);
108
109 /* still need to eradicate a few :( */
110 #define callocstructN(x, y, name) (x *)MEM_callocN((y) * sizeof(x), name)
111
112 static float nurbcircle[8][2] = {
113         {0.0, -1.0}, {-1.0, -1.0}, {-1.0, 0.0}, {-1.0,  1.0},
114         {0.0,  1.0}, { 1.0,  1.0}, { 1.0, 0.0}, { 1.0, -1.0}
115 };
116
117 ListBase *object_editcurve_get(Object *ob)
118 {
119         if (ob && ELEM(ob->type, OB_CURVE, OB_SURF)) {
120                 Curve *cu = ob->data;
121                 return &cu->editnurb->nurbs;
122         }
123         return NULL;
124 }
125
126 /* this replaces the active flag used in uv/face mode */
127 static void set_actNurb(Object *obedit, Nurb *nu)
128 {
129         Curve *cu = obedit->data;
130         
131         if (nu == NULL)
132                 cu->actnu = -1;
133         else {
134                 ListBase *nurbs = BKE_curve_editNurbs_get(cu);
135                 cu->actnu = BLI_findindex(nurbs, nu);
136         }
137 }
138
139 static Nurb *get_actNurb(Object *obedit)
140 {
141         Curve *cu = obedit->data;
142         ListBase *nurbs = BKE_curve_editNurbs_get(cu);
143
144         return BLI_findlink(nurbs, cu->actnu);
145 }
146
147 /* ******************* SELECTION FUNCTIONS ********************* */
148
149 #define HIDDEN          1
150 #define VISIBLE         0
151
152 #define FIRST           1
153 #define LAST            0
154
155
156 /* returns 1 in case (de)selection was successful */
157 static short select_beztriple(BezTriple *bezt, short selstatus, short flag, short hidden)
158 {       
159         if (bezt) {
160                 if ((bezt->hide == 0) || (hidden == 1)) {
161                         if (selstatus == 1) { /* selects */
162                                 bezt->f1 |= flag;
163                                 bezt->f2 |= flag;
164                                 bezt->f3 |= flag;
165                                 return 1;                       
166                         }
167                         else { /* deselects */  
168                                 bezt->f1 &= ~flag; 
169                                 bezt->f2 &= ~flag; 
170                                 bezt->f3 &= ~flag; 
171                                 return 1;
172                         }
173                 }
174         }
175         
176         return 0;
177 }
178
179 /* returns 1 in case (de)selection was successful */
180 static short select_bpoint(BPoint *bp, short selstatus, short flag, short hidden) 
181 {       
182         if (bp) {
183                 if ((bp->hide == 0) || (hidden == 1)) {
184                         if (selstatus == 1) {
185                                 bp->f1 |= flag;
186                                 return 1;
187                         }
188                         else {
189                                 bp->f1 &= ~flag;
190                                 return 1;
191                         }
192                 }
193         }
194
195         return 0;
196 }
197
198 static short swap_selection_beztriple(BezTriple *bezt)
199 {
200         if (bezt->f2 & SELECT)
201                 return select_beztriple(bezt, DESELECT, 1, VISIBLE);
202         else
203                 return select_beztriple(bezt, SELECT, 1, VISIBLE);
204 }
205
206 static short swap_selection_bpoint(BPoint *bp)
207 {
208         if (bp->f1 & SELECT)
209                 return select_bpoint(bp, DESELECT, 1, VISIBLE);
210         else
211                 return select_bpoint(bp, SELECT, 1, VISIBLE);
212 }
213
214 int isNurbsel(Nurb *nu)
215 {
216         BezTriple *bezt;
217         BPoint *bp;
218         int a;
219
220         if (nu->type == CU_BEZIER) {
221                 bezt = nu->bezt;
222                 a = nu->pntsu;
223                 while (a--) {
224                         if ( (bezt->f1 & SELECT) || (bezt->f2 & SELECT) || (bezt->f3 & SELECT) ) return 1;
225                         bezt++;
226                 }
227         }
228         else {
229                 bp = nu->bp;
230                 a = nu->pntsu * nu->pntsv;
231                 while (a--) {
232                         if (bp->f1 & SELECT) return 1;
233                         bp++;
234                 }
235         }
236         return 0;
237 }
238
239 static int isNurbsel_count(Curve *cu, Nurb *nu)
240 {
241         BezTriple *bezt;
242         BPoint *bp;
243         int a, sel = 0;
244
245         if (nu->type == CU_BEZIER) {
246                 bezt = nu->bezt;
247                 a = nu->pntsu;
248                 while (a--) {
249                         if (BEZSELECTED_HIDDENHANDLES(cu, bezt)) sel++;
250                         bezt++;
251                 }
252         }
253         else {
254                 bp = nu->bp;
255                 a = nu->pntsu * nu->pntsv;
256                 while (a--) {
257                         if ( (bp->f1 & SELECT) ) sel++;
258                         bp++;
259                 }
260         }
261         return sel;
262 }
263
264 /* ******************* PRINTS ********************* */
265
266 void printknots(Object *obedit)
267 {
268         ListBase *editnurb = object_editcurve_get(obedit);
269         Nurb *nu;
270         int a, num;
271
272         for (nu = editnurb->first; nu; nu = nu->next) {
273                 if (isNurbsel(nu) && nu->type == CU_NURBS) {
274                         if (nu->knotsu) {
275                                 num = KNOTSU(nu);
276                                 for (a = 0; a < num; a++) printf("knotu %d: %f\n", a, nu->knotsu[a]);
277                         }
278                         if (nu->knotsv) {
279                                 num = KNOTSV(nu);
280                                 for (a = 0; a < num; a++) printf("knotv %d: %f\n", a, nu->knotsv[a]);
281                         }
282                 }
283         }
284 }
285
286 /* ********************* Shape keys *************** */
287
288 static CVKeyIndex *init_cvKeyIndex(void *cv, int key_index, int nu_index, int pt_index, Nurb *orig_nu)
289 {
290         CVKeyIndex *cvIndex = MEM_callocN(sizeof(CVKeyIndex), "init_cvKeyIndex");
291
292         cvIndex->orig_cv = cv;
293         cvIndex->key_index = key_index;
294         cvIndex->nu_index = nu_index;
295         cvIndex->pt_index = pt_index;
296         cvIndex->switched = 0;
297         cvIndex->orig_nu = orig_nu;
298
299         return cvIndex;
300 }
301
302 static void init_editNurb_keyIndex(EditNurb *editnurb, ListBase *origBase)
303 {
304         Nurb *nu = editnurb->nurbs.first;
305         Nurb *orignu = origBase->first;
306         GHash *gh;
307         BezTriple *bezt, *origbezt;
308         BPoint *bp, *origbp;
309         CVKeyIndex *keyIndex;
310         int a, key_index = 0, nu_index = 0, pt_index = 0;
311
312         if (editnurb->keyindex) return;
313
314         gh = BLI_ghash_ptr_new("editNurb keyIndex");
315
316         while (orignu) {
317                 if (orignu->bezt) {
318                         a = orignu->pntsu;
319                         bezt = nu->bezt;
320                         origbezt = orignu->bezt;
321                         pt_index = 0;
322                         while (a--) {
323                                 keyIndex = init_cvKeyIndex(origbezt, key_index, nu_index, pt_index, orignu);
324                                 BLI_ghash_insert(gh, bezt, keyIndex);
325                                 key_index += 12;
326                                 bezt++;
327                                 origbezt++;
328                                 pt_index++;
329                         }
330                 }
331                 else {
332                         a = orignu->pntsu * orignu->pntsv;
333                         bp = nu->bp;
334                         origbp = orignu->bp;
335                         pt_index = 0;
336                         while (a--) {
337                                 keyIndex = init_cvKeyIndex(origbp, key_index, nu_index, pt_index, orignu);
338                                 BLI_ghash_insert(gh, bp, keyIndex);
339                                 key_index += 4;
340                                 bp++;
341                                 origbp++;
342                                 pt_index++;
343                         }
344                 }
345
346                 nu = nu->next;
347                 orignu = orignu->next;
348                 nu_index++;
349         }
350
351         editnurb->keyindex = gh;
352 }
353
354 static CVKeyIndex *getCVKeyIndex(EditNurb *editnurb, void *cv)
355 {
356         return BLI_ghash_lookup(editnurb->keyindex, cv);
357 }
358
359 static CVKeyIndex *popCVKeyIndex(EditNurb *editnurb, void *cv)
360 {
361         return BLI_ghash_pop(editnurb->keyindex, cv, NULL);
362 }
363
364 static BezTriple *getKeyIndexOrig_bezt(EditNurb *editnurb, BezTriple *bezt)
365 {
366         CVKeyIndex *index = getCVKeyIndex(editnurb, bezt);
367
368         if (!index) {
369                 return NULL;
370         }
371
372         return (BezTriple *)index->orig_cv;
373 }
374
375 static BPoint *getKeyIndexOrig_bp(EditNurb *editnurb, BPoint *bp)
376 {
377         CVKeyIndex *index = getCVKeyIndex(editnurb, bp);
378
379         if (!index) {
380                 return NULL;
381         }
382
383         return (BPoint *)index->orig_cv;
384 }
385
386 static int getKeyIndexOrig_keyIndex(EditNurb *editnurb, void *cv)
387 {
388         CVKeyIndex *index = getCVKeyIndex(editnurb, cv);
389
390         if (!index) {
391                 return -1;
392         }
393
394         return index->key_index;
395 }
396
397 static void keyIndex_delCV(EditNurb *editnurb, void *cv)
398 {
399         if (!editnurb->keyindex) {
400                 return;
401         }
402
403         BLI_ghash_remove(editnurb->keyindex, cv, NULL, (GHashValFreeFP)MEM_freeN);
404 }
405
406 static void keyIndex_delBezt(EditNurb *editnurb, BezTriple *bezt)
407 {
408         keyIndex_delCV(editnurb, bezt);
409 }
410
411 static void keyIndex_delBP(EditNurb *editnurb, BPoint *bp)
412 {
413         keyIndex_delCV(editnurb, bp);
414 }
415
416 static void keyIndex_delNurb(EditNurb *editnurb, Nurb *nu)
417 {
418         int a;
419
420         if (!editnurb->keyindex) {
421                 return;
422         }
423
424         if (nu->bezt) {
425                 BezTriple *bezt = nu->bezt;
426                 a = nu->pntsu;
427
428                 while (a--) {
429                         BLI_ghash_remove(editnurb->keyindex, bezt, NULL, (GHashValFreeFP)MEM_freeN);
430                         bezt++;
431                 }
432         }
433         else {
434                 BPoint *bp = nu->bp;
435                 a = nu->pntsu * nu->pntsv;
436
437                 while (a--) {
438                         BLI_ghash_remove(editnurb->keyindex, bp, NULL, (GHashValFreeFP)MEM_freeN);
439                         bp++;
440                 }
441         }
442 }
443
444 static void keyIndex_delNurbList(EditNurb *editnurb, ListBase *nubase)
445 {
446         Nurb *nu = nubase->first;
447
448         while (nu) {
449                 keyIndex_delNurb(editnurb, nu);
450
451                 nu = nu->next;
452         }
453 }
454
455 static void keyIndex_updateCV(EditNurb *editnurb, char *cv,
456                               char *newcv, int count, int size)
457 {
458         int i;
459         CVKeyIndex *index;
460
461         if (editnurb->keyindex == NULL) {
462                 /* No shape keys - updating not needed */
463                 return;
464         }
465
466         for (i = 0; i < count; i++) {
467                 index = popCVKeyIndex(editnurb, cv);
468
469                 if (index) {
470                         BLI_ghash_insert(editnurb->keyindex, newcv, index);
471                 }
472
473                 newcv += size;
474                 cv += size;
475         }
476 }
477
478 static void keyIndex_updateBezt(EditNurb *editnurb, BezTriple *bezt,
479                                 BezTriple *newbezt, int count)
480 {
481         keyIndex_updateCV(editnurb, (char *)bezt, (char *)newbezt, count, sizeof(BezTriple));
482 }
483
484 static void keyIndex_updateBP(EditNurb *editnurb, BPoint *bp,
485                               BPoint *newbp, int count)
486 {
487         keyIndex_updateCV(editnurb, (char *)bp, (char *)newbp, count, sizeof(BPoint));
488 }
489
490 static void keyIndex_updateNurb(EditNurb *editnurb, Nurb *nu, Nurb *newnu)
491 {
492         if (nu->bezt) {
493                 keyIndex_updateBezt(editnurb, nu->bezt, newnu->bezt, newnu->pntsu);
494         }
495         else {
496                 keyIndex_updateBP(editnurb, nu->bp, newnu->bp, newnu->pntsu * newnu->pntsv);
497         }
498 }
499
500 static void keyIndex_swap(EditNurb *editnurb, void *a, void *b)
501 {
502         CVKeyIndex *index1 = popCVKeyIndex(editnurb, a);
503         CVKeyIndex *index2 = popCVKeyIndex(editnurb, b);
504
505         if (index2) BLI_ghash_insert(editnurb->keyindex, a, index2);
506         if (index1) BLI_ghash_insert(editnurb->keyindex, b, index1);
507 }
508
509 static void keyIndex_switchDirection(EditNurb *editnurb, Nurb *nu)
510 {
511         int a;
512         CVKeyIndex *index1, *index2;
513
514         if (nu->bezt) {
515                 BezTriple *bezt1, *bezt2;
516
517                 a = nu->pntsu;
518
519                 bezt1 = nu->bezt;
520                 bezt2 = bezt1 + (a - 1);
521
522                 if (a & 1) ++a;
523
524                 a /= 2;
525
526                 while (a--) {
527                         index1 = getCVKeyIndex(editnurb, bezt1);
528                         index2 = getCVKeyIndex(editnurb, bezt2);
529
530                         if (index1) index1->switched = !index1->switched;
531
532                         if (bezt1 != bezt2) {
533                                 keyIndex_swap(editnurb, bezt1, bezt2);
534
535                                 if (index2) index2->switched = !index2->switched;
536                         }
537
538                         bezt1++;
539                         bezt2--;
540                 }
541         }
542         else {
543                 BPoint *bp1, *bp2;
544
545                 if (nu->pntsv == 1) {
546                         a = nu->pntsu;
547                         bp1 = nu->bp;
548                         bp2 = bp1 + (a - 1);
549                         a /= 2;
550                         while (bp1 != bp2 && a > 0) {
551                                 index1 = getCVKeyIndex(editnurb, bp1);
552                                 index2 = getCVKeyIndex(editnurb, bp2);
553
554                                 if (index1) index1->switched = !index1->switched;
555
556                                 if (bp1 != bp2) {
557                                         if (index2) index2->switched = !index2->switched;
558
559                                         keyIndex_swap(editnurb, bp1, bp2);
560                                 }
561
562                                 a--;
563                                 bp1++;
564                                 bp2--;
565                         }
566                 }
567                 else {
568                         int b;
569
570                         for (b = 0; b < nu->pntsv; b++) {
571
572                                 bp1 = &nu->bp[b * nu->pntsu];
573                                 a = nu->pntsu;
574                                 bp2 = bp1 + (a - 1);
575                                 a /= 2;
576
577                                 while (bp1 != bp2 && a > 0) {
578                                         index1 = getCVKeyIndex(editnurb, bp1);
579                                         index2 = getCVKeyIndex(editnurb, bp2);
580
581                                         if (index1) index1->switched = !index1->switched;
582
583                                         if (bp1 != bp2) {
584                                                 if (index2) index2->switched = !index2->switched;
585
586                                                 keyIndex_swap(editnurb, bp1, bp2);
587                                         }
588
589                                         a--;
590                                         bp1++;
591                                         bp2--;
592                                 }
593                         }
594
595                 }
596         }
597 }
598
599 static void switch_keys_direction(Curve *cu, Nurb *actnu)
600 {
601         KeyBlock *currkey;
602         EditNurb *editnurb = cu->editnurb;
603         ListBase *nubase = &editnurb->nurbs;
604         Nurb *nu;
605         float *fp;
606         int a;
607
608         currkey = cu->key->block.first;
609         while (currkey) {
610                 fp = currkey->data;
611
612                 nu = nubase->first;
613                 while (nu) {
614                         if (nu->bezt) {
615                                 BezTriple *bezt = nu->bezt;
616                                 a = nu->pntsu;
617                                 if (nu == actnu) {
618                                         while (a--) {
619                                                 if (getKeyIndexOrig_bezt(editnurb, bezt)) {
620                                                         swap_v3_v3(fp, fp + 6);
621                                                         *(fp + 9) = -*(fp + 9);
622                                                         fp += 12;
623                                                 }
624                                                 bezt++;
625                                         }
626                                 }
627                                 else fp += a * 12;
628                         }
629                         else {
630                                 BPoint *bp = nu->bp;
631                                 a = nu->pntsu * nu->pntsv;
632                                 if (nu == actnu) {
633                                         while (a--) {
634                                                 if (getKeyIndexOrig_bp(editnurb, bp)) {
635                                                         *(fp + 3) = -*(fp + 3);
636                                                         fp += 4;
637                                                 }
638                                                 bp++;
639                                         }
640                                 }
641                                 else fp += a * 4;
642                         }
643
644                         nu = nu->next;
645                 }
646
647                 currkey = currkey->next;
648         }
649 }
650
651 static void keyData_switchDirectionNurb(Curve *cu, Nurb *nu)
652 {
653         EditNurb *editnurb = cu->editnurb;
654
655         if (!editnurb->keyindex) {
656                 /* no shape keys - nothing to do */
657                 return;
658         }
659
660         keyIndex_switchDirection(editnurb, nu);
661         if (cu->key)
662                 switch_keys_direction(cu, nu);
663 }
664
665 static GHash *dupli_keyIndexHash(GHash *keyindex)
666 {
667         GHash *gh;
668         GHashIterator *hashIter;
669
670         gh = BLI_ghash_ptr_new("dupli_keyIndex gh");
671
672         for (hashIter = BLI_ghashIterator_new(keyindex);
673              !BLI_ghashIterator_isDone(hashIter);
674              BLI_ghashIterator_step(hashIter))
675         {
676                 void *cv = BLI_ghashIterator_getKey(hashIter);
677                 CVKeyIndex *index = BLI_ghashIterator_getValue(hashIter);
678                 CVKeyIndex *newIndex = MEM_callocN(sizeof(CVKeyIndex), "dupli_keyIndexHash index");
679
680                 memcpy(newIndex, index, sizeof(CVKeyIndex));
681
682                 BLI_ghash_insert(gh, cv, newIndex);
683         }
684
685         BLI_ghashIterator_free(hashIter);
686
687         return gh;
688 }
689
690 static void key_to_bezt(float *key, BezTriple *basebezt, BezTriple *bezt)
691 {
692         memcpy(bezt, basebezt, sizeof(BezTriple));
693         memcpy(bezt->vec, key, sizeof(float) * 9);
694         bezt->alfa = key[9];
695 }
696
697 static void bezt_to_key(BezTriple *bezt, float *key)
698 {
699         memcpy(key, bezt->vec, sizeof(float) * 9);
700         key[9] = bezt->alfa;
701 }
702
703 static void calc_keyHandles(ListBase *nurb, float *key)
704 {
705         Nurb *nu;
706         int a;
707         float *fp = key;
708         BezTriple *bezt;
709
710         nu = nurb->first;
711         while (nu) {
712                 if (nu->bezt) {
713                         BezTriple *prevp, *nextp;
714                         BezTriple cur, prev, next;
715                         float *startfp, *prevfp, *nextfp;
716
717                         bezt = nu->bezt;
718                         a = nu->pntsu;
719                         startfp = fp;
720
721                         if (nu->flagu & CU_NURB_CYCLIC) {
722                                 prevp = bezt + (a - 1);
723                                 prevfp = fp + (12 * (a - 1));
724                         }
725                         else {
726                                 prevp = NULL;
727                                 prevfp = NULL;
728                         }
729
730                         nextp = bezt + 1;
731                         nextfp = fp + 12;
732
733                         while (a--) {
734                                 key_to_bezt(fp, bezt, &cur);
735
736                                 if (nextp) key_to_bezt(nextfp, nextp, &next);
737                                 if (prevp) key_to_bezt(prevfp, prevp, &prev);
738
739                                 BKE_nurb_handle_calc(&cur, prevp ? &prev : NULL, nextp ? &next : NULL, 0);
740                                 bezt_to_key(&cur, fp);
741
742                                 prevp = bezt;
743                                 prevfp = fp;
744                                 if (a == 1) {
745                                         if (nu->flagu & CU_NURB_CYCLIC) {
746                                                 nextp = nu->bezt;
747                                                 nextfp = startfp;
748                                         }
749                                         else {
750                                                 nextp = NULL;
751                                                 nextfp = NULL;
752                                         }
753                                 }
754                                 else {
755                                         nextp++;
756                                         nextfp += 12;
757                                 }
758
759                                 bezt++;
760                                 fp += 12;
761                         }
762                 }
763                 else {
764                         a = nu->pntsu * nu->pntsv;
765                         fp += a * 4;
766                 }
767
768                 nu = nu->next;
769         }
770 }
771
772 static void calc_shapeKeys(Object *obedit)
773 {
774         Curve *cu = (Curve *)obedit->data;
775
776         /* are there keys? */
777         if (cu->key) {
778                 int a, i;
779                 EditNurb *editnurb = cu->editnurb;
780                 KeyBlock *currkey;
781                 KeyBlock *actkey = BLI_findlink(&cu->key->block, editnurb->shapenr - 1);
782                 BezTriple *bezt, *oldbezt;
783                 BPoint *bp, *oldbp;
784                 Nurb *nu;
785                 int totvert = BKE_nurbList_verts_count(&editnurb->nurbs);
786
787                 float (*ofs)[3] = NULL;
788                 float *oldkey, *newkey, *ofp;
789
790                 /* editing the base key should update others */
791                 if (cu->key->type == KEY_RELATIVE) {
792                         int act_is_basis = 0;
793                         /* find if this key is a basis for any others */
794                         for (currkey = cu->key->block.first; currkey; currkey = currkey->next) {
795                                 if (editnurb->shapenr - 1 == currkey->relative) {
796                                         act_is_basis = 1;
797                                         break;
798                                 }
799                         }
800
801                         if (act_is_basis) { /* active key is a base */
802                                 int totvec = 0;
803
804                                 /* Calculate needed memory to store offset */
805                                 nu = editnurb->nurbs.first;
806                                 while (nu) {
807                                         if (nu->bezt) {
808                                                 /* Three vects to store handles and one for alfa */
809                                                 totvec += nu->pntsu * 4;
810                                         }
811                                         else {
812                                                 totvec += 2 * nu->pntsu * nu->pntsv;
813                                         }
814
815                                         nu = nu->next;
816                                 }
817
818                                 ofs = MEM_callocN(sizeof(float) * 3 * totvec,  "currkey->data");
819                                 nu = editnurb->nurbs.first;
820                                 i = 0;
821                                 while (nu) {
822                                         if (nu->bezt) {
823                                                 bezt = nu->bezt;
824                                                 a = nu->pntsu;
825                                                 while (a--) {
826                                                         oldbezt = getKeyIndexOrig_bezt(editnurb, bezt);
827
828                                                         if (oldbezt) {
829                                                                 int j;
830                                                                 for (j = 0; j < 3; ++j) {
831                                                                         sub_v3_v3v3(ofs[i], bezt->vec[j], oldbezt->vec[j]);
832                                                                         i++;
833                                                                 }
834                                                                 ofs[i++][0] = bezt->alfa - oldbezt->alfa;
835                                                         }
836                                                         else {
837                                                                 i += 4;
838                                                         }
839                                                         bezt++;
840                                                 }
841                                         }
842                                         else {
843                                                 bp = nu->bp;
844                                                 a = nu->pntsu * nu->pntsv;
845                                                 while (a--) {
846                                                         oldbp = getKeyIndexOrig_bp(editnurb, bp);
847                                                         if (oldbp) {
848                                                                 sub_v3_v3v3(ofs[i], bp->vec, oldbp->vec);
849                                                                 ofs[i + 1][0] = bp->alfa - oldbp->alfa;
850                                                         }
851                                                         i += 2;
852                                                         bp++;
853                                                 }
854                                         }
855
856                                         nu = nu->next;
857                                 }
858                         }
859                 }
860
861                 currkey = cu->key->block.first;
862                 while (currkey) {
863                         int apply_offset = (ofs && (currkey != actkey) && (editnurb->shapenr - 1 == currkey->relative));
864
865                         float *fp = newkey = MEM_callocN(cu->key->elemsize * totvert,  "currkey->data");
866                         ofp = oldkey = currkey->data;
867
868                         nu = editnurb->nurbs.first;
869                         i = 0;
870                         while (nu) {
871                                 if (currkey == actkey) {
872                                         int restore = actkey != cu->key->refkey;
873
874                                         if (nu->bezt) {
875                                                 bezt = nu->bezt;
876                                                 a = nu->pntsu;
877                                                 while (a--) {
878                                                         int j;
879                                                         oldbezt = getKeyIndexOrig_bezt(editnurb, bezt);
880
881                                                         for (j = 0; j < 3; ++j, ++i) {
882                                                                 copy_v3_v3(fp, bezt->vec[j]);
883
884                                                                 if (restore && oldbezt) {
885                                                                         copy_v3_v3(bezt->vec[j], oldbezt->vec[j]);
886                                                                 }
887
888                                                                 fp += 3;
889                                                         }
890                                                         fp[0] = bezt->alfa;
891
892                                                         if (restore && oldbezt) {
893                                                                 bezt->alfa = oldbezt->alfa;
894                                                         }
895
896                                                         fp += 3; ++i; /* alphas */
897                                                         bezt++;
898                                                 }
899                                         }
900                                         else {
901                                                 bp = nu->bp;
902                                                 a = nu->pntsu * nu->pntsv;
903                                                 while (a--) {
904                                                         oldbp = getKeyIndexOrig_bp(editnurb, bp);
905
906                                                         copy_v3_v3(fp, bp->vec);
907
908                                                         fp[3] = bp->alfa;
909
910                                                         if (restore && oldbp) {
911                                                                 copy_v3_v3(bp->vec, oldbp->vec);
912                                                                 bp->alfa = oldbp->alfa;
913                                                         }
914
915                                                         fp += 4;
916                                                         bp++;
917                                                         i += 2;
918                                                 }
919                                         }
920                                 }
921                                 else {
922                                         int index;
923                                         float *curofp;
924
925                                         if (oldkey) {
926                                                 if (nu->bezt) {
927                                                         bezt = nu->bezt;
928                                                         a = nu->pntsu;
929
930                                                         while (a--) {
931                                                                 index = getKeyIndexOrig_keyIndex(editnurb, bezt);
932                                                                 if (index >= 0) {
933                                                                         int j;
934                                                                         curofp = ofp + index;
935
936                                                                         for (j = 0; j < 3; ++j, ++i) {
937                                                                                 copy_v3_v3(fp, curofp);
938
939                                                                                 if (apply_offset) {
940                                                                                         add_v3_v3(fp, ofs[i]);
941                                                                                 }
942
943                                                                                 fp += 3; curofp += 3;
944                                                                         }
945                                                                         fp[0] = curofp[0];
946
947                                                                         if (apply_offset) {
948                                                                                 /* apply alfa offsets */
949                                                                                 add_v3_v3(fp, ofs[i]);
950                                                                                 i++;
951                                                                         }
952
953                                                                         fp += 3; /* alphas */
954                                                                 }
955                                                                 else {
956                                                                         int j;
957                                                                         for (j = 0; j < 3; ++j, ++i) {
958                                                                                 copy_v3_v3(fp, bezt->vec[j]);
959                                                                                 fp += 3;
960                                                                         }
961                                                                         fp[0] = bezt->alfa;
962
963                                                                         fp += 3; /* alphas */
964                                                                 }
965                                                                 bezt++;
966                                                         }
967                                                 }
968                                                 else {
969                                                         bp = nu->bp;
970                                                         a = nu->pntsu * nu->pntsv;
971                                                         while (a--) {
972                                                                 index = getKeyIndexOrig_keyIndex(editnurb, bp);
973
974                                                                 if (index >= 0) {
975                                                                         curofp = ofp + index;
976                                                                         copy_v3_v3(fp, curofp);
977                                                                         fp[3] = curofp[3];
978
979                                                                         if (apply_offset) {
980                                                                                 add_v3_v3(fp, ofs[i]);
981                                                                                 fp[3] += ofs[i + 1][0];
982                                                                         }
983                                                                 }
984                                                                 else {
985                                                                         copy_v3_v3(fp, bp->vec);
986                                                                         fp[3] = bp->alfa;
987                                                                 }
988
989                                                                 fp += 4;
990                                                                 bp++;
991                                                                 i += 2;
992                                                         }
993                                                 }
994                                         }
995                                 }
996
997                                 nu = nu->next;
998                         }
999
1000                         if (apply_offset) {
1001                                 /* handles could become malicious after offsets applying */
1002                                 calc_keyHandles(&editnurb->nurbs, newkey);
1003                         }
1004
1005                         currkey->totelem = totvert;
1006                         if (currkey->data) MEM_freeN(currkey->data);
1007                         currkey->data = newkey;
1008
1009                         currkey = currkey->next;
1010                 }
1011
1012                 if (ofs) MEM_freeN(ofs);
1013         }
1014 }
1015
1016 /* ********************* Amimation data *************** */
1017
1018 static int curve_is_animated(Curve *cu)
1019 {
1020         AnimData *ad = BKE_animdata_from_id(&cu->id);
1021
1022         return ad && (ad->action || ad->drivers.first);
1023 }
1024
1025 static void fcurve_path_rename(AnimData *ad, char *orig_rna_path, char *rna_path, ListBase *orig_curves, ListBase *curves)
1026 {
1027         FCurve *fcu, *nfcu, *nextfcu;
1028         int len = strlen(orig_rna_path);
1029
1030         fcu = orig_curves->first;
1031         while (fcu) {
1032                 nextfcu = fcu->next;
1033                 if (!strncmp(fcu->rna_path, orig_rna_path, len)) {
1034                         char *spath, *suffix = fcu->rna_path + len;
1035                         nfcu = copy_fcurve(fcu);
1036                         spath = nfcu->rna_path;
1037                         nfcu->rna_path = BLI_sprintfN("%s%s", rna_path, suffix);
1038                         BLI_addtail(curves, nfcu);
1039
1040                         if (fcu->grp) {
1041                                 action_groups_remove_channel(ad->action, fcu);
1042                                 action_groups_add_channel(ad->action, fcu->grp, nfcu);
1043                         }
1044                         else if (ad->action && &ad->action->curves == orig_curves)
1045                                 BLI_remlink(&ad->action->curves, fcu);
1046                         else
1047                                 BLI_remlink(&ad->drivers, fcu);
1048
1049                         free_fcurve(fcu);
1050
1051                         MEM_freeN(spath);
1052                 }
1053                 fcu = nextfcu;
1054         }
1055 }
1056
1057 static void fcurve_remove(AnimData *ad, ListBase *orig_curves, FCurve *fcu)
1058 {
1059         if (orig_curves == &ad->drivers) BLI_remlink(&ad->drivers, fcu);
1060         else action_groups_remove_channel(ad->action, fcu);
1061
1062         free_fcurve(fcu);
1063 }
1064
1065 static void curve_rename_fcurves(Curve *cu, ListBase *orig_curves)
1066 {
1067         int nu_index = 0, a, pt_index;
1068         EditNurb *editnurb = cu->editnurb;
1069         Nurb *nu = editnurb->nurbs.first;
1070         CVKeyIndex *keyIndex;
1071         char rna_path[64], orig_rna_path[64];
1072         AnimData *ad = BKE_animdata_from_id(&cu->id);
1073         ListBase curves = {NULL, NULL};
1074         FCurve *fcu, *next;
1075
1076         while (nu) {
1077                 if (nu->bezt) {
1078                         BezTriple *bezt = nu->bezt;
1079                         a = nu->pntsu;
1080                         pt_index = 0;
1081
1082                         while (a--) {
1083                                 keyIndex = getCVKeyIndex(editnurb, bezt);
1084                                 if (keyIndex) {
1085                                         BLI_snprintf(rna_path, sizeof(rna_path), "splines[%d].bezier_points[%d]", nu_index, pt_index);
1086                                         BLI_snprintf(orig_rna_path, sizeof(orig_rna_path), "splines[%d].bezier_points[%d]", keyIndex->nu_index, keyIndex->pt_index);
1087
1088                                         if (keyIndex->switched) {
1089                                                 char handle_path[64], orig_handle_path[64];
1090                                                 BLI_snprintf(orig_handle_path, sizeof(orig_rna_path), "%s.handle_left", orig_rna_path);
1091                                                 BLI_snprintf(handle_path, sizeof(rna_path), "%s.handle_right", rna_path);
1092                                                 fcurve_path_rename(ad, orig_handle_path, handle_path, orig_curves, &curves);
1093
1094                                                 BLI_snprintf(orig_handle_path, sizeof(orig_rna_path), "%s.handle_right", orig_rna_path);
1095                                                 BLI_snprintf(handle_path, sizeof(rna_path), "%s.handle_left", rna_path);
1096                                                 fcurve_path_rename(ad, orig_handle_path, handle_path, orig_curves, &curves);
1097                                         }
1098
1099                                         fcurve_path_rename(ad, orig_rna_path, rna_path, orig_curves, &curves);
1100
1101                                         keyIndex->nu_index = nu_index;
1102                                         keyIndex->pt_index = pt_index;
1103                                 }
1104
1105                                 bezt++;
1106                                 pt_index++;
1107                         }
1108                 }
1109                 else {
1110                         BPoint *bp = nu->bp;
1111                         a = nu->pntsu * nu->pntsv;
1112                         pt_index = 0;
1113
1114                         while (a--) {
1115                                 keyIndex = getCVKeyIndex(editnurb, bp);
1116                                 if (keyIndex) {
1117                                         BLI_snprintf(rna_path, sizeof(rna_path), "splines[%d].points[%d]", nu_index, pt_index);
1118                                         BLI_snprintf(orig_rna_path, sizeof(orig_rna_path), "splines[%d].points[%d]", keyIndex->nu_index, keyIndex->pt_index);
1119                                         fcurve_path_rename(ad, orig_rna_path, rna_path, orig_curves, &curves);
1120
1121                                         keyIndex->nu_index = nu_index;
1122                                         keyIndex->pt_index = pt_index;
1123                                 }
1124
1125                                 bp++;
1126                                 pt_index++;
1127                         }
1128                 }
1129                 nu = nu->next;
1130                 nu_index++;
1131         }
1132
1133         /* remove paths for removed control points
1134          * need this to make further step with copying non-cv related curves copying
1135          * not touching cv's f-curves */
1136         for (fcu = orig_curves->first; fcu; fcu = next) {
1137                 next = fcu->next;
1138
1139                 if (!strncmp(fcu->rna_path, "splines", 7)) {
1140                         char *ch = strchr(fcu->rna_path, '.');
1141
1142                         if (ch && (!strncmp(ch, ".bezier_points", 14) || !strncmp(ch, ".points", 7)))
1143                                 fcurve_remove(ad, orig_curves, fcu);
1144                 }
1145         }
1146
1147         nu_index = 0;
1148         nu = editnurb->nurbs.first;
1149         while (nu) {
1150                 keyIndex = NULL;
1151                 if (nu->pntsu) {
1152                         if (nu->bezt) keyIndex = getCVKeyIndex(editnurb, &nu->bezt[0]);
1153                         else keyIndex = getCVKeyIndex(editnurb, &nu->bp[0]);
1154                 }
1155
1156                 if (keyIndex) {
1157                         BLI_snprintf(rna_path, sizeof(rna_path), "splines[%d]", nu_index);
1158                         BLI_snprintf(orig_rna_path, sizeof(orig_rna_path), "splines[%d]", keyIndex->nu_index);
1159                         fcurve_path_rename(ad, orig_rna_path, rna_path, orig_curves, &curves);
1160                 }
1161
1162                 nu_index++;
1163                 nu = nu->next;
1164         }
1165
1166         /* the remainders in orig_curves can be copied back (like follow path) */
1167         /* (if it's not path to spline) */
1168         for (fcu = orig_curves->first; fcu; fcu = next) {
1169                 next = fcu->next;
1170
1171                 if (!strncmp(fcu->rna_path, "splines", 7)) fcurve_remove(ad, orig_curves, fcu);
1172                 else BLI_addtail(&curves, fcu);
1173         }
1174
1175         *orig_curves = curves;
1176 }
1177
1178 /* return 0 if animation data wasn't changed, 1 otherwise */
1179 int ED_curve_updateAnimPaths(Curve *cu)
1180 {
1181         AnimData *ad = BKE_animdata_from_id(&cu->id);
1182
1183         if (!curve_is_animated(cu)) return 0;
1184
1185         if (ad->action)
1186                 curve_rename_fcurves(cu, &ad->action->curves);
1187
1188         curve_rename_fcurves(cu, &ad->drivers);
1189
1190         return 1;
1191 }
1192
1193 /* ********************* LOAD and MAKE *************** */
1194
1195 /* load editNurb in object */
1196 void load_editNurb(Object *obedit)
1197 {
1198         ListBase *editnurb = object_editcurve_get(obedit);
1199
1200         if (obedit == NULL) return;
1201
1202         if (ELEM(obedit->type, OB_CURVE, OB_SURF)) {
1203                 Curve *cu = obedit->data;
1204                 Nurb *nu, *newnu;
1205                 ListBase newnurb = {NULL, NULL}, oldnurb = cu->nurb;
1206
1207                 for (nu = editnurb->first; nu; nu = nu->next) {
1208                         newnu = BKE_nurb_duplicate(nu);
1209                         BLI_addtail(&newnurb, newnu);
1210
1211                         if (nu->type == CU_NURBS) {
1212                                 BKE_nurb_order_clamp_u(nu);
1213                         }
1214                 }
1215
1216                 cu->nurb = newnurb;
1217
1218                 calc_shapeKeys(obedit);
1219                 ED_curve_updateAnimPaths(obedit->data);
1220
1221                 BKE_nurbList_free(&oldnurb);
1222         }
1223 }
1224
1225 /* make copy in cu->editnurb */
1226 void make_editNurb(Object *obedit)
1227 {
1228         Curve *cu = (Curve *)obedit->data;
1229         EditNurb *editnurb = cu->editnurb;
1230         Nurb *nu, *newnu, *nu_act = NULL;
1231         KeyBlock *actkey;
1232
1233         set_actNurb(obedit, NULL);
1234
1235         if (ELEM(obedit->type, OB_CURVE, OB_SURF)) {
1236                 actkey = ob_get_keyblock(obedit);
1237
1238                 if (actkey) {
1239                         // XXX strcpy(G.editModeTitleExtra, "(Key) ");
1240                         undo_editmode_clear();
1241                         key_to_curve(actkey, cu, &cu->nurb);
1242                 }
1243
1244                 if (editnurb) {
1245                         BKE_nurbList_free(&editnurb->nurbs);
1246                         BKE_curve_editNurb_keyIndex_free(editnurb);
1247                         editnurb->keyindex = NULL;
1248                 }
1249                 else {
1250                         editnurb = MEM_callocN(sizeof(EditNurb), "editnurb");
1251                         cu->editnurb = editnurb;
1252                 }
1253
1254                 nu = cu->nurb.first;
1255                 cu->lastsel = NULL;   /* for select row */
1256
1257                 while (nu) {
1258                         newnu = BKE_nurb_duplicate(nu);
1259                         BKE_nurb_test2D(newnu); // after join, or any other creation of curve
1260                         BLI_addtail(&editnurb->nurbs, newnu);
1261
1262                         if (nu_act == NULL && isNurbsel(nu)) {
1263                                 nu_act = newnu;
1264                                 set_actNurb(obedit, newnu);
1265                         }
1266
1267                         nu = nu->next;
1268                 }
1269
1270                 if (actkey)
1271                         editnurb->shapenr = obedit->shapenr;
1272
1273                 /* animation could be added in editmode even if there was no animdata i
1274                  * object mode hence we always need CVs index be created */
1275                 init_editNurb_keyIndex(editnurb, &cu->nurb);
1276         }
1277 }
1278
1279 void free_editNurb(Object *obedit)
1280 {
1281         Curve *cu = obedit->data;
1282
1283         BKE_curve_editNurb_free(cu);
1284 }
1285
1286 void CU_deselect_all(Object *obedit)
1287 {
1288         ListBase *editnurb = object_editcurve_get(obedit);
1289
1290         if (editnurb) {
1291                 selectend_nurb(obedit, FIRST, 0, DESELECT); /* set first control points as unselected */
1292                 select_adjacent_cp(editnurb, 1, 1, DESELECT); /* cascade selection */
1293         }
1294 }
1295
1296 void CU_select_all(Object *obedit)
1297 {
1298         ListBase *editnurb = object_editcurve_get(obedit);
1299
1300         if (editnurb) {
1301                 selectend_nurb(obedit, FIRST, 0, SELECT); /* set first control points as unselected */
1302                 select_adjacent_cp(editnurb, 1, 1, SELECT); /* cascade selection */
1303         }
1304 }
1305
1306 void CU_select_swap(Object *obedit)
1307 {
1308         ListBase *editnurb = object_editcurve_get(obedit);
1309
1310         if (editnurb) {
1311                 Curve *cu = obedit->data;
1312                 Nurb *nu;
1313                 BPoint *bp;
1314                 BezTriple *bezt;
1315                 int a;
1316
1317                 cu->lastsel = NULL;
1318
1319                 for (nu = editnurb->first; nu; nu = nu->next) {
1320                         if (nu->type == CU_BEZIER) {
1321                                 bezt = nu->bezt;
1322                                 a = nu->pntsu;
1323                                 while (a--) {
1324                                         if (bezt->hide == 0) {
1325                                                 bezt->f2 ^= SELECT; /* always do the center point */
1326                                                 if ((cu->drawflag & CU_HIDE_HANDLES) == 0) {
1327                                                         bezt->f1 ^= SELECT;
1328                                                         bezt->f3 ^= SELECT;
1329                                                 }
1330                                         }
1331                                         bezt++;
1332                                 }
1333                         }
1334                         else {
1335                                 bp = nu->bp;
1336                                 a = nu->pntsu * nu->pntsv;
1337                                 while (a--) {
1338                                         swap_selection_bpoint(bp);
1339                                         bp++;
1340                                 }
1341                         }
1342                 }
1343         }
1344 }
1345
1346 /******************** separate operator ***********************/
1347
1348 static int separate_exec(bContext *C, wmOperator *op)
1349 {
1350         Main *bmain = CTX_data_main(C);
1351         Scene *scene = CTX_data_scene(C);
1352         Nurb *nu, *nu1;
1353         Object *oldob, *newob;
1354         Base *oldbase, *newbase;
1355         Curve *oldcu, *newcu;
1356         EditNurb *oldedit, *newedit;
1357
1358         oldbase = CTX_data_active_base(C);
1359         oldob = oldbase->object;
1360         oldcu = oldob->data;
1361         oldedit = oldcu->editnurb;
1362
1363         if (oldcu->key) {
1364                 BKE_report(op->reports, RPT_ERROR, "Can't separate a curve with vertex keys");
1365                 return OPERATOR_CANCELLED;
1366         }
1367
1368         WM_cursor_wait(1);
1369         
1370         /* 1. duplicate the object and data */
1371         newbase = ED_object_add_duplicate(bmain, scene, oldbase, 0); /* 0 = fully linked */
1372         ED_base_object_select(newbase, BA_DESELECT);
1373         newob = newbase->object;
1374
1375         newcu = newob->data = BKE_curve_copy(oldcu);
1376         newcu->editnurb = NULL;
1377         oldcu->id.us--; /* because new curve is a copy: reduce user count */
1378
1379         /* 2. put new object in editmode and clear it */
1380         make_editNurb(newob);
1381         newedit = newcu->editnurb;
1382         BKE_nurbList_free(&newedit->nurbs);
1383         BKE_curve_editNurb_keyIndex_free(newedit);
1384
1385         /* 3. move over parts from old object */
1386         for (nu = oldedit->nurbs.first; nu; nu = nu1) {
1387                 nu1 = nu->next;
1388
1389                 if (isNurbsel(nu)) {
1390                         BLI_remlink(&oldedit->nurbs, nu);
1391                         BLI_addtail(&newedit->nurbs, nu);
1392                 }
1393         }
1394
1395         /* 4. put old object out of editmode */
1396         load_editNurb(newob);
1397         free_editNurb(newob);
1398
1399         DAG_id_tag_update(&oldob->id, OB_RECALC_DATA);  /* this is the original one */
1400         DAG_id_tag_update(&newob->id, OB_RECALC_DATA);  /* this is the separated one */
1401
1402         WM_event_add_notifier(C, NC_GEOM | ND_DATA, oldob->data);
1403
1404         WM_cursor_wait(0);
1405
1406         return OPERATOR_FINISHED;
1407 }
1408
1409 void CURVE_OT_separate(wmOperatorType *ot)
1410 {
1411         /* identifiers */
1412         ot->name = "Separate";
1413         ot->idname = "CURVE_OT_separate";
1414         ot->description = "Separate (partly) selected curves or surfaces into a new object";
1415         
1416         /* api callbacks */
1417         ot->exec = separate_exec;
1418         ot->poll = ED_operator_editsurfcurve;
1419         
1420         /* flags */
1421         ot->flag = OPTYPE_REGISTER | OPTYPE_UNDO;
1422 }
1423
1424 /* ******************* FLAGS ********************* */
1425
1426 static short isNurbselUV(Nurb *nu, int *u, int *v, int flag)
1427 {
1428         /* return u!=-1:     1 row in u-direction selected. U has value between 0-pntsv 
1429          * return v!=-1: 1 column in v-direction selected. V has value between 0-pntsu
1430          */
1431         BPoint *bp;
1432         int a, b, sel;
1433
1434         *u = *v = -1;
1435
1436         bp = nu->bp;
1437         for (b = 0; b < nu->pntsv; b++) {
1438                 sel = 0;
1439                 for (a = 0; a < nu->pntsu; a++, bp++) {
1440                         if (bp->f1 & flag) sel++;
1441                 }
1442                 if (sel == nu->pntsu) {
1443                         if (*u == -1) *u = b;
1444                         else return 0;
1445                 }
1446                 else if (sel > 1) return 0;  /* because sel == 1 is still ok */
1447         }
1448
1449         for (a = 0; a < nu->pntsu; a++) {
1450                 sel = 0;
1451                 bp = &nu->bp[a];
1452                 for (b = 0; b < nu->pntsv; b++, bp += nu->pntsu) {
1453                         if (bp->f1 & flag) sel++;
1454                 }
1455                 if (sel == nu->pntsv) {
1456                         if (*v == -1) *v = a;
1457                         else return 0;
1458                 }
1459                 else if (sel > 1) return 0;
1460         }
1461
1462         if (*u == -1 && *v > -1) return 1;
1463         if (*v == -1 && *u > -1) return 1;
1464         return 0;
1465 }
1466
1467 static void setflagsNurb(ListBase *editnurb, short flag)
1468 {
1469         Nurb *nu;
1470         BezTriple *bezt;
1471         BPoint *bp;
1472         int a;
1473
1474         for (nu = editnurb->first; nu; nu = nu->next) {
1475                 if (nu->type == CU_BEZIER) {
1476                         a = nu->pntsu;
1477                         bezt = nu->bezt;
1478                         while (a--) {
1479                                 bezt->f1 = bezt->f2 = bezt->f3 = flag;
1480                                 bezt++;
1481                         }
1482                 }
1483                 else {
1484                         a = nu->pntsu * nu->pntsv;
1485                         bp = nu->bp;
1486                         while (a--) {
1487                                 bp->f1 = flag;
1488                                 bp++;
1489                         }
1490                 }
1491         }
1492 }
1493
1494 static void rotateflagNurb(ListBase *editnurb, short flag, float *cent, float rotmat[][3])
1495 {
1496         /* all verts with (flag & 'flag') rotate */
1497         Nurb *nu;
1498         BPoint *bp;
1499         int a;
1500
1501         for (nu = editnurb->first; nu; nu = nu->next) {
1502                 if (nu->type == CU_NURBS) {
1503                         bp = nu->bp;
1504                         a = nu->pntsu * nu->pntsv;
1505
1506                         while (a--) {
1507                                 if (bp->f1 & flag) {
1508                                         sub_v3_v3(bp->vec, cent);
1509                                         mul_m3_v3(rotmat, bp->vec);
1510                                         add_v3_v3(bp->vec, cent);
1511                                 }
1512                                 bp++;
1513                         }
1514                 }
1515         }
1516 }
1517
1518 static void translateflagNurb(ListBase *editnurb, short flag, const float vec[3])
1519 {
1520         /* all verts with ('flag' & flag) translate */
1521         Nurb *nu;
1522         BezTriple *bezt;
1523         BPoint *bp;
1524         int a;
1525
1526         for (nu = editnurb->first; nu; nu = nu->next) {
1527                 if (nu->type == CU_BEZIER) {
1528                         a = nu->pntsu;
1529                         bezt = nu->bezt;
1530                         while (a--) {
1531                                 if (bezt->f1 & flag) add_v3_v3(bezt->vec[0], vec);
1532                                 if (bezt->f2 & flag) add_v3_v3(bezt->vec[1], vec);
1533                                 if (bezt->f3 & flag) add_v3_v3(bezt->vec[2], vec);
1534                                 bezt++;
1535                         }
1536                 }
1537                 else {
1538                         a = nu->pntsu * nu->pntsv;
1539                         bp = nu->bp;
1540                         while (a--) {
1541                                 if (bp->f1 & flag) add_v3_v3(bp->vec, vec);
1542                                 bp++;
1543                         }
1544                 }
1545
1546                 BKE_nurb_test2D(nu);
1547         }
1548 }
1549
1550 static void weightflagNurb(ListBase *editnurb, short flag, float w)
1551 {
1552         Nurb *nu;
1553         BPoint *bp;
1554         int a;
1555
1556         for (nu = editnurb->first; nu; nu = nu->next) {
1557                 if (nu->type == CU_NURBS) {
1558                         a = nu->pntsu * nu->pntsv;
1559                         bp = nu->bp;
1560                         while (a--) {
1561                                 if (bp->f1 & flag) {
1562                                         /* a mode used to exist for replace/multiple but is was unused */
1563                                         bp->vec[3] *= w;
1564                                 }
1565                                 bp++;
1566                         }
1567                 }
1568         }
1569 }
1570
1571 static int deleteflagNurb(bContext *C, wmOperator *UNUSED(op), int flag)
1572 {
1573         Object *obedit = CTX_data_edit_object(C);
1574         Curve *cu = obedit->data;
1575         ListBase *editnurb = object_editcurve_get(obedit);
1576         Nurb *nu, *next;
1577         BPoint *bp, *bpn, *newbp;
1578         int a, b, newu, newv, sel;
1579
1580         if (obedit->type == OB_SURF) ;
1581         else return OPERATOR_CANCELLED;
1582
1583         cu->lastsel = NULL;
1584
1585         nu = editnurb->first;
1586         while (nu) {
1587                 next = nu->next;
1588
1589                 /* is entire nurb selected */
1590                 bp = nu->bp;
1591                 a = nu->pntsu * nu->pntsv;
1592                 while (a) {
1593                         a--;
1594                         if (bp->f1 & flag) ;
1595                         else break;
1596                         bp++;
1597                 }
1598                 if (a == 0) {
1599                         BLI_remlink(editnurb, nu);
1600                         keyIndex_delNurb(cu->editnurb, nu);
1601                         BKE_nurb_free(nu); nu = NULL;
1602                 }
1603                 else {
1604                         /* is nurb in U direction selected */
1605                         newv = nu->pntsv;
1606                         bp = nu->bp;
1607                         for (b = 0; b < nu->pntsv; b++) {
1608                                 sel = 0;
1609                                 for (a = 0; a < nu->pntsu; a++, bp++) {
1610                                         if (bp->f1 & flag) sel++;
1611                                 }
1612                                 if (sel == nu->pntsu) {
1613                                         newv--;
1614                                 }
1615                                 else if (sel >= 1) {
1616                                         /* don't delete */
1617                                         break;
1618                                 }
1619                         }
1620                         if (newv != nu->pntsv && b == nu->pntsv) {
1621                                 /* delete */
1622                                 bp = nu->bp;
1623                                 bpn = newbp = (BPoint *)MEM_mallocN(newv * nu->pntsu * sizeof(BPoint), "deleteNurb");
1624                                 for (b = 0; b < nu->pntsv; b++) {
1625                                         if ((bp->f1 & flag) == 0) {
1626                                                 memcpy(bpn, bp, nu->pntsu * sizeof(BPoint));
1627                                                 keyIndex_updateBP(cu->editnurb, bp, bpn, nu->pntsu);
1628                                                 bpn += nu->pntsu;
1629                                         }
1630                                         else {
1631                                                 keyIndex_delBP(cu->editnurb, bp);
1632                                         }
1633                                         bp += nu->pntsu;
1634                                 }
1635                                 nu->pntsv = newv;
1636                                 MEM_freeN(nu->bp);
1637                                 nu->bp = newbp;
1638                                 BKE_nurb_order_clamp_v(nu);
1639
1640                                 BKE_nurb_knot_calc_v(nu);
1641                         }
1642                         else {
1643                                 /* is the nurb in V direction selected */
1644                                 newu = nu->pntsu;
1645                                 for (a = 0; a < nu->pntsu; a++) {
1646                                         bp = &nu->bp[a];
1647                                         sel = 0;
1648                                         for (b = 0; b < nu->pntsv; b++, bp += nu->pntsu) {
1649                                                 if (bp->f1 & flag) sel++;
1650                                         }
1651                                         if (sel == nu->pntsv) {
1652                                                 newu--;
1653                                         }
1654                                         else if (sel >= 1) {
1655                                                 /* don't delete */
1656                                                 break;
1657                                         }
1658                                 }
1659                                 if (newu != nu->pntsu && a == nu->pntsu) {
1660                                         /* delete */
1661                                         bp = nu->bp;
1662                                         bpn = newbp = (BPoint *)MEM_mallocN(newu * nu->pntsv * sizeof(BPoint), "deleteNurb");
1663                                         for (b = 0; b < nu->pntsv; b++) {
1664                                                 for (a = 0; a < nu->pntsu; a++, bp++) {
1665                                                         if ((bp->f1 & flag) == 0) {
1666                                                                 *bpn = *bp;
1667                                                                 keyIndex_updateBP(cu->editnurb, bp, bpn, 1);
1668                                                                 bpn++;
1669                                                         }
1670                                                         else {
1671                                                                 keyIndex_delBP(cu->editnurb, bp);
1672                                                         }
1673                                                 }
1674                                         }
1675                                         MEM_freeN(nu->bp);
1676                                         nu->bp = newbp;
1677                                         if (newu == 1 && nu->pntsv > 1) {    /* make a U spline */
1678                                                 nu->pntsu = nu->pntsv;
1679                                                 nu->pntsv = 1;
1680                                                 SWAP(short, nu->orderu, nu->orderv);
1681                                                 BKE_nurb_order_clamp_u(nu);
1682                                                 if (nu->knotsv) MEM_freeN(nu->knotsv);
1683                                                 nu->knotsv = NULL;
1684                                         }
1685                                         else {
1686                                                 nu->pntsu = newu;
1687                                                 BKE_nurb_order_clamp_u(nu);
1688                                         }
1689                                         BKE_nurb_knot_calc_u(nu);
1690                                 }
1691                         }
1692                 }
1693                 nu = next;
1694         }
1695
1696         if (ED_curve_updateAnimPaths(obedit->data))
1697                 WM_event_add_notifier(C, NC_OBJECT | ND_KEYS, obedit);
1698
1699         return OPERATOR_FINISHED;
1700 }
1701
1702 /* only for OB_SURF */
1703 static short extrudeflagNurb(EditNurb *editnurb, int flag)
1704 {
1705         Nurb *nu;
1706         BPoint *bp, *bpn, *newbp;
1707         int ok = 0, a, u, v, len;
1708
1709         nu = editnurb->nurbs.first;
1710         while (nu) {
1711
1712                 if (nu->pntsv == 1) {
1713                         bp = nu->bp;
1714                         a = nu->pntsu;
1715                         while (a) {
1716                                 if (bp->f1 & flag) ;
1717                                 else break;
1718                                 bp++;
1719                                 a--;
1720                         }
1721                         if (a == 0) {
1722                                 ok = 1;
1723                                 newbp = (BPoint *)MEM_mallocN(2 * nu->pntsu * sizeof(BPoint), "extrudeNurb1");
1724                                 ED_curve_bpcpy(editnurb, newbp, nu->bp, nu->pntsu);
1725                                 bp = newbp + nu->pntsu;
1726                                 ED_curve_bpcpy(editnurb, bp, nu->bp, nu->pntsu);
1727                                 MEM_freeN(nu->bp);
1728                                 nu->bp = newbp;
1729                                 a = nu->pntsu;
1730                                 while (a--) {
1731                                         select_bpoint(bp, SELECT, flag, HIDDEN);
1732                                         select_bpoint(newbp, DESELECT, flag, HIDDEN);
1733                                         bp++; 
1734                                         newbp++;
1735                                 }
1736
1737                                 nu->pntsv = 2;
1738                                 nu->orderv = 2;
1739                                 BKE_nurb_knot_calc_v(nu);
1740                         }
1741                 }
1742                 else {
1743                         /* which row or column is selected */
1744
1745                         if (isNurbselUV(nu, &u, &v, flag) ) {
1746
1747                                 /* deselect all */
1748                                 bp = nu->bp;
1749                                 a = nu->pntsu * nu->pntsv;
1750                                 while (a--) {
1751                                         select_bpoint(bp, DESELECT, flag, HIDDEN);
1752                                         bp++;
1753                                 }
1754
1755                                 if (u == 0 || u == nu->pntsv - 1) {      /* row in u-direction selected */
1756                                         ok = 1;
1757                                         newbp = (BPoint *)MEM_mallocN(nu->pntsu * (nu->pntsv + 1) *
1758                                                                       sizeof(BPoint), "extrudeNurb1");
1759                                         if (u == 0) {
1760                                                 len = nu->pntsv * nu->pntsu;
1761                                                 ED_curve_bpcpy(editnurb, newbp + nu->pntsu, nu->bp, len);
1762                                                 ED_curve_bpcpy(editnurb, newbp, nu->bp, nu->pntsu);
1763                                                 bp = newbp;
1764                                         }
1765                                         else {
1766                                                 len = nu->pntsv * nu->pntsu;
1767                                                 ED_curve_bpcpy(editnurb, newbp, nu->bp, len);
1768                                                 ED_curve_bpcpy(editnurb, newbp + len, &nu->bp[len - nu->pntsu], nu->pntsu);
1769                                                 bp = newbp + len;
1770                                         }
1771
1772                                         a = nu->pntsu;
1773                                         while (a--) {
1774                                                 select_bpoint(bp, SELECT, flag, HIDDEN);
1775                                                 bp++;
1776                                         }
1777
1778                                         MEM_freeN(nu->bp);
1779                                         nu->bp = newbp;
1780                                         nu->pntsv++;
1781                                         BKE_nurb_knot_calc_v(nu);
1782                                 }
1783                                 else if (v == 0 || v == nu->pntsu - 1) {     /* column in v-direction selected */
1784                                         ok = 1;
1785                                         bpn = newbp = (BPoint *)MEM_mallocN((nu->pntsu + 1) * nu->pntsv * sizeof(BPoint), "extrudeNurb1");
1786                                         bp = nu->bp;
1787
1788                                         for (a = 0; a < nu->pntsv; a++) {
1789                                                 if (v == 0) {
1790                                                         *bpn = *bp;
1791                                                         bpn->f1 |= flag;
1792                                                         bpn++;
1793                                                 }
1794                                                 ED_curve_bpcpy(editnurb, bpn, bp, nu->pntsu);
1795                                                 bp += nu->pntsu;
1796                                                 bpn += nu->pntsu;
1797                                                 if (v == nu->pntsu - 1) {
1798                                                         *bpn = *(bp - 1);
1799                                                         bpn->f1 |= flag;
1800                                                         bpn++;
1801                                                 }
1802                                         }
1803
1804                                         MEM_freeN(nu->bp);
1805                                         nu->bp = newbp;
1806                                         nu->pntsu++;
1807                                         BKE_nurb_knot_calc_u(nu);
1808                                 }
1809                         }
1810                 }
1811                 nu = nu->next;
1812         }
1813
1814         return ok;
1815 }
1816
1817 static void adduplicateflagNurb(Object *obedit, short flag)
1818 {
1819         ListBase *editnurb = object_editcurve_get(obedit);
1820         Nurb *nu, *newnu;
1821         BezTriple *bezt, *bezt1;
1822         BPoint *bp, *bp1;
1823         Curve *cu = (Curve *)obedit->data;
1824         int a, b, starta, enda, newu, newv;
1825         char *usel;
1826
1827         cu->lastsel = NULL;
1828
1829         nu = editnurb->last;
1830         while (nu) {
1831                 if (nu->type == CU_BEZIER) {
1832                         bezt = nu->bezt;
1833                         for (a = 0; a < nu->pntsu; a++) {
1834                                 enda = -1;
1835                                 starta = a;
1836                                 while ( (bezt->f1 & flag) || (bezt->f2 & flag) || (bezt->f3 & flag) ) {
1837                                         select_beztriple(bezt, DESELECT, flag, HIDDEN);
1838                                         enda = a;
1839                                         if (a >= nu->pntsu - 1) break;
1840                                         a++;
1841                                         bezt++;
1842                                 }
1843                                 if (enda >= starta) {
1844                                         newnu = (Nurb *)MEM_mallocN(sizeof(Nurb), "adduplicateN");
1845                                         memcpy(newnu, nu, sizeof(Nurb));
1846                                         BLI_addtail(editnurb, newnu);
1847                                         set_actNurb(obedit, newnu);
1848                                         newnu->pntsu = enda - starta + 1;
1849                                         newnu->bezt = (BezTriple *)MEM_mallocN((enda - starta + 1) * sizeof(BezTriple), "adduplicateN");
1850                                         memcpy(newnu->bezt, &nu->bezt[starta], newnu->pntsu * sizeof(BezTriple));
1851
1852                                         b = newnu->pntsu;
1853                                         bezt1 = newnu->bezt;
1854                                         while (b--) {
1855                                                 select_beztriple(bezt1, SELECT, flag, HIDDEN);
1856                                                 bezt1++;
1857                                         }
1858
1859                                         if (nu->flagu & CU_NURB_CYCLIC) {
1860                                                 if (starta != 0 || enda != nu->pntsu - 1) {
1861                                                         newnu->flagu &= ~CU_NURB_CYCLIC;
1862                                                 }
1863                                         }
1864                                 }
1865                                 bezt++;
1866                         }
1867                 }
1868                 else if (nu->pntsv == 1) {    /* because UV Nurb has a different method for dupli */
1869                         bp = nu->bp;
1870                         for (a = 0; a < nu->pntsu; a++) {
1871                                 enda = -1;
1872                                 starta = a;
1873                                 while (bp->f1 & flag) {
1874                                         select_bpoint(bp, DESELECT, flag, HIDDEN);
1875                                         enda = a;
1876                                         if (a >= nu->pntsu - 1) break;
1877                                         a++;
1878                                         bp++;
1879                                 }
1880                                 if (enda >= starta) {
1881                                         newnu = (Nurb *)MEM_mallocN(sizeof(Nurb), "adduplicateN3");
1882                                         memcpy(newnu, nu, sizeof(Nurb));
1883                                         set_actNurb(obedit, newnu);
1884                                         BLI_addtail(editnurb, newnu);
1885                                         newnu->pntsu = enda - starta + 1;
1886                                         newnu->bp = (BPoint *)MEM_mallocN((enda - starta + 1) * sizeof(BPoint), "adduplicateN4");
1887                                         memcpy(newnu->bp, &nu->bp[starta], newnu->pntsu * sizeof(BPoint));
1888
1889                                         b = newnu->pntsu;
1890                                         bp1 = newnu->bp;
1891                                         while (b--) {
1892                                                 select_bpoint(bp1, SELECT, flag, HIDDEN);
1893                                                 bp1++;
1894                                         }
1895
1896                                         if (nu->flagu & CU_NURB_CYCLIC) {
1897                                                 if (starta != 0 || enda != nu->pntsu - 1) {
1898                                                         newnu->flagu &= ~CU_NURB_CYCLIC;
1899                                                 }
1900                                         }
1901
1902                                         /* knots */
1903                                         newnu->knotsu = NULL;
1904                                         BKE_nurb_knot_calc_u(newnu);
1905                                 }
1906                                 bp++;
1907                         }
1908                 }
1909                 else {
1910                         /* a rectangular area in nurb has to be selected */
1911                         if (isNurbsel(nu)) {
1912                                 usel = MEM_callocN(nu->pntsu, "adduplicateN4");
1913                                 bp = nu->bp;
1914                                 for (a = 0; a < nu->pntsv; a++) {
1915                                         for (b = 0; b < nu->pntsu; b++, bp++) {
1916                                                 if (bp->f1 & flag) usel[b]++;
1917                                         }
1918                                 }
1919                                 newu = 0;
1920                                 newv = 0;
1921                                 for (a = 0; a < nu->pntsu; a++) {
1922                                         if (usel[a]) {
1923                                                 if (newv == 0 || usel[a] == newv) {
1924                                                         newv = usel[a];
1925                                                         newu++;
1926                                                 }
1927                                                 else {
1928                                                         newv = 0;
1929                                                         break;
1930                                                 }
1931                                         }
1932                                 }
1933                                 if (newu == 0 || newv == 0) {
1934                                         if (G.debug & G_DEBUG)
1935                                                 printf("Can't duplicate Nurb\n");
1936                                 }
1937                                 else {
1938
1939                                         if (newu == 1) SWAP(short, newu, newv);
1940
1941                                         newnu = (Nurb *)MEM_mallocN(sizeof(Nurb), "adduplicateN5");
1942                                         memcpy(newnu, nu, sizeof(Nurb));
1943                                         BLI_addtail(editnurb, newnu);
1944                                         set_actNurb(obedit, newnu);
1945                                         newnu->pntsu = newu;
1946                                         newnu->pntsv = newv;
1947                                         newnu->bp = (BPoint *)MEM_mallocN(newu * newv * sizeof(BPoint), "adduplicateN6");
1948                                         BKE_nurb_order_clamp_u(newnu);
1949                                         BKE_nurb_order_clamp_v(newnu);
1950                                         
1951                                         newnu->knotsu = newnu->knotsv = NULL;
1952                                         
1953                                         bp = newnu->bp;
1954                                         bp1 = nu->bp;
1955                                         for (a = 0; a < nu->pntsv; a++) {
1956                                                 for (b = 0; b < nu->pntsu; b++, bp1++) {
1957                                                         if (bp1->f1 & flag) {
1958                                                                 memcpy(bp, bp1, sizeof(BPoint));
1959                                                                 select_bpoint(bp1, DESELECT, flag, HIDDEN);
1960                                                                 bp++;
1961                                                         }
1962                                                 }
1963                                         }
1964                                         if (BKE_nurb_check_valid_u(newnu)) {
1965                                                 if (nu->pntsu == newnu->pntsu && nu->knotsu) {
1966                                                         newnu->knotsu = MEM_dupallocN(nu->knotsu);
1967                                                 }
1968                                                 else {
1969                                                         BKE_nurb_knot_calc_u(newnu);
1970                                                 }
1971                                         }
1972                                         if (BKE_nurb_check_valid_v(newnu)) {
1973                                                 if (nu->pntsv == newnu->pntsv && nu->knotsv) {
1974                                                         newnu->knotsv = MEM_dupallocN(nu->knotsv);
1975                                                 }
1976                                                 else {
1977                                                         BKE_nurb_knot_calc_v(newnu);
1978                                                 }
1979                                         }
1980                                 }
1981                                 MEM_freeN(usel);
1982                         }
1983                 }
1984
1985                 nu = nu->prev;
1986         }
1987         
1988         /* actnu changed */
1989 }
1990
1991 /**************** switch direction operator ***************/
1992
1993 static int switch_direction_exec(bContext *C, wmOperator *UNUSED(op))
1994 {
1995         Object *obedit = CTX_data_edit_object(C);
1996         Curve *cu = (Curve *)obedit->data;
1997         EditNurb *editnurb = cu->editnurb;
1998         Nurb *nu;
1999
2000         for (nu = editnurb->nurbs.first; nu; nu = nu->next)
2001                 if (isNurbsel(nu)) {
2002                         BKE_nurb_direction_switch(nu);
2003                         keyData_switchDirectionNurb(cu, nu);
2004                 }
2005
2006         if (ED_curve_updateAnimPaths(obedit->data))
2007                 WM_event_add_notifier(C, NC_OBJECT | ND_KEYS, obedit);
2008
2009         DAG_id_tag_update(obedit->data, 0);
2010         WM_event_add_notifier(C, NC_GEOM | ND_DATA, obedit->data);
2011
2012         return OPERATOR_FINISHED;
2013 }
2014
2015 void CURVE_OT_switch_direction(wmOperatorType *ot)
2016 {
2017         /* identifiers */
2018         ot->name = "Switch Direction";
2019         ot->description = "Switch direction of selected splines";
2020         ot->idname = "CURVE_OT_switch_direction";
2021         
2022         /* api callbacks */
2023         ot->exec = switch_direction_exec;
2024         ot->poll = ED_operator_editsurfcurve;
2025
2026         /* flags */
2027         ot->flag = OPTYPE_REGISTER | OPTYPE_UNDO;
2028 }
2029
2030 /****************** set weight operator *******************/
2031
2032 static int set_goal_weight_exec(bContext *C, wmOperator *op)
2033 {
2034         Object *obedit = CTX_data_edit_object(C);
2035         ListBase *editnurb = object_editcurve_get(obedit);
2036         Nurb *nu;
2037         BezTriple *bezt;
2038         BPoint *bp;
2039         float weight = RNA_float_get(op->ptr, "weight");
2040         int a;
2041                                 
2042         for (nu = editnurb->first; nu; nu = nu->next) {
2043                 if (nu->bezt) {
2044                         for (bezt = nu->bezt, a = 0; a < nu->pntsu; a++, bezt++) {
2045                                 if (bezt->f2 & SELECT)
2046                                         bezt->weight = weight;
2047                         }
2048                 }
2049                 else if (nu->bp) {
2050                         for (bp = nu->bp, a = 0; a < nu->pntsu * nu->pntsv; a++, bp++) {
2051                                 if (bp->f1 & SELECT)
2052                                         bp->weight = weight;
2053                         }
2054                 }
2055         }       
2056
2057         DAG_id_tag_update(obedit->data, 0);
2058         WM_event_add_notifier(C, NC_GEOM | ND_DATA, obedit->data);
2059
2060         return OPERATOR_FINISHED;
2061 }
2062
2063 void CURVE_OT_spline_weight_set(wmOperatorType *ot)
2064 {
2065         /* identifiers */
2066         ot->name = "Set Goal Weight";
2067         ot->description = "Set softbody goal weight for selected points";
2068         ot->idname = "CURVE_OT_spline_weight_set";
2069         
2070         /* api callbacks */
2071         ot->exec = set_goal_weight_exec;
2072         ot->invoke = WM_operator_props_popup;
2073         ot->poll = ED_operator_editsurfcurve;
2074
2075         /* flags */
2076         ot->flag = OPTYPE_REGISTER | OPTYPE_UNDO;
2077
2078         /* properties */
2079         RNA_def_float_factor(ot->srna, "weight", 1.0f, 0.0f, 1.0f, "Weight", "", 0.0f, 1.0f);
2080 }
2081
2082 /******************* set radius operator ******************/
2083
2084 static int set_radius_exec(bContext *C, wmOperator *op)
2085 {
2086         Object *obedit = CTX_data_edit_object(C);
2087         ListBase *editnurb = object_editcurve_get(obedit);
2088         Nurb *nu;
2089         BezTriple *bezt;
2090         BPoint *bp;
2091         float radius = RNA_float_get(op->ptr, "radius");
2092         int a;
2093         
2094         for (nu = editnurb->first; nu; nu = nu->next) {
2095                 if (nu->bezt) {
2096                         for (bezt = nu->bezt, a = 0; a < nu->pntsu; a++, bezt++) {
2097                                 if (bezt->f2 & SELECT)
2098                                         bezt->radius = radius;
2099                         }
2100                 }
2101                 else if (nu->bp) {
2102                         for (bp = nu->bp, a = 0; a < nu->pntsu * nu->pntsv; a++, bp++) {
2103                                 if (bp->f1 & SELECT)
2104                                         bp->radius = radius;
2105                         }
2106                 }
2107         }       
2108
2109         WM_event_add_notifier(C, NC_GEOM | ND_DATA, obedit->data);
2110         DAG_id_tag_update(obedit->data, 0);
2111
2112         return OPERATOR_FINISHED;
2113 }
2114
2115 void CURVE_OT_radius_set(wmOperatorType *ot)
2116 {
2117         /* identifiers */
2118         ot->name = "Set Curve Radius";
2119         ot->description = "Set per-point radius which is used for bevel tapering";
2120         ot->idname = "CURVE_OT_radius_set";
2121         
2122         /* api callbacks */
2123         ot->exec = set_radius_exec;
2124         ot->invoke = WM_operator_props_popup;
2125         ot->poll = ED_operator_editsurfcurve;
2126
2127         /* flags */
2128         ot->flag = OPTYPE_REGISTER | OPTYPE_UNDO;
2129
2130         /* properties */
2131         RNA_def_float(ot->srna, "radius", 1.0f, 0.0f, FLT_MAX, "Radius", "", 0.0001f, 10.0f);
2132 }
2133
2134 /********************* smooth operator ********************/
2135
2136 static int smooth_exec(bContext *C, wmOperator *UNUSED(op))
2137 {
2138         Object *obedit = CTX_data_edit_object(C);
2139         ListBase *editnurb = object_editcurve_get(obedit);
2140         Nurb *nu;
2141         BezTriple *bezt, *beztOrig;
2142         BPoint *bp, *bpOrig;
2143         float val, newval, offset;
2144         int a, i, change = 0;
2145         
2146         for (nu = editnurb->first; nu; nu = nu->next) {
2147                 if (nu->bezt) {
2148                         change = 0;
2149                         beztOrig = MEM_dupallocN(nu->bezt);
2150                         for (bezt = &nu->bezt[1], a = 1; a < nu->pntsu - 1; a++, bezt++) {
2151                                 if (bezt->f2 & SELECT) {
2152                                         for (i = 0; i < 3; i++) {
2153                                                 val = bezt->vec[1][i];
2154                                                 newval = ((beztOrig + (a - 1))->vec[1][i] * 0.5f) + ((beztOrig + (a + 1))->vec[1][i] * 0.5f);
2155                                                 offset = (val * ((1.0f / 6.0f) * 5.0f)) + (newval * (1.0f / 6.0f)) - val;
2156                                                 /* offset handles */
2157                                                 bezt->vec[1][i] += offset;
2158                                                 bezt->vec[0][i] += offset;
2159                                                 bezt->vec[2][i] += offset;
2160                                         }
2161                                         change = 1;
2162                                 }
2163                         }
2164                         MEM_freeN(beztOrig);
2165                         if (change)
2166                                 BKE_nurb_handles_calc(nu);
2167                 }
2168                 else if (nu->bp) {
2169                         bpOrig = MEM_dupallocN(nu->bp);
2170                         /* Same as above, keep these the same! */
2171                         for (bp = &nu->bp[1], a = 1; a < nu->pntsu - 1; a++, bp++) {
2172                                 if (bp->f1 & SELECT) {
2173                                         for (i = 0; i < 3; i++) {
2174                                                 val = bp->vec[i];
2175                                                 newval = ((bpOrig + (a - 1))->vec[i] * 0.5f) + ((bpOrig + (a + 1))->vec[i] * 0.5f);
2176                                                 offset = (val * ((1.0f / 6.0f) * 5.0f)) + (newval * (1.0f / 6.0f)) - val;
2177                                         
2178                                                 bp->vec[i] += offset;
2179                                         }
2180                                 }
2181                         }
2182                         MEM_freeN(bpOrig);
2183                 }
2184         }
2185
2186         WM_event_add_notifier(C, NC_GEOM | ND_DATA, obedit->data);
2187         DAG_id_tag_update(obedit->data, 0);
2188
2189         return OPERATOR_FINISHED;
2190 }
2191
2192 void CURVE_OT_smooth(wmOperatorType *ot)
2193 {
2194         /* identifiers */
2195         ot->name = "Smooth";
2196         ot->description = "Flatten angles of selected points";
2197         ot->idname = "CURVE_OT_smooth";
2198         
2199         /* api callbacks */
2200         ot->exec = smooth_exec;
2201         ot->poll = ED_operator_editsurfcurve;
2202
2203         /* flags */
2204         ot->flag = OPTYPE_REGISTER | OPTYPE_UNDO;
2205 }
2206
2207 /**************** smooth curve radius operator *************/
2208
2209 /* TODO, make smoothing distance based */
2210 static int smooth_radius_exec(bContext *C, wmOperator *UNUSED(op))
2211 {
2212         Object *obedit = CTX_data_edit_object(C);
2213         ListBase *editnurb = object_editcurve_get(obedit);
2214         Nurb *nu;
2215         BezTriple *bezt;
2216         BPoint *bp;
2217         int a;
2218         
2219         /* use for smoothing */
2220         int last_sel;
2221         int start_sel, end_sel; /* selection indices, inclusive */
2222         float start_rad, end_rad, fac, range;
2223         
2224         for (nu = editnurb->first; nu; nu = nu->next) {
2225                 if (nu->bezt) {
2226                         
2227                         for (last_sel = 0; last_sel < nu->pntsu; last_sel++) {
2228                                 /* loop over selection segments of a curve, smooth each */
2229                                 
2230                                 /* Start BezTriple code, this is duplicated below for points, make sure these functions stay in sync */
2231                                 start_sel = -1;
2232                                 for (bezt = &nu->bezt[last_sel], a = last_sel; a < nu->pntsu; a++, bezt++) {
2233                                         if (bezt->f2 & SELECT) {
2234                                                 start_sel = a;
2235                                                 break;
2236                                         }
2237                                 }
2238                                 /* in case there are no other selected verts */
2239                                 end_sel = start_sel;
2240                                 for (bezt = &nu->bezt[start_sel + 1], a = start_sel + 1; a < nu->pntsu; a++, bezt++) {
2241                                         if ((bezt->f2 & SELECT) == 0) {
2242                                                 break;
2243                                         }
2244                                         end_sel = a;
2245                                 }
2246                                 
2247                                 if (start_sel == -1) {
2248                                         last_sel = nu->pntsu; /* next... */
2249                                 }
2250                                 else {
2251                                         last_sel = end_sel; /* before we modify it */
2252                                         
2253                                         /* now blend between start and end sel */
2254                                         start_rad = end_rad = -1.0;
2255                                         
2256                                         if (start_sel == end_sel) {
2257                                                 /* simple, only 1 point selected */
2258                                                 if (start_sel > 0)                         start_rad = nu->bezt[start_sel - 1].radius;
2259                                                 if (end_sel != -1 && end_sel < nu->pntsu)  end_rad   = nu->bezt[start_sel + 1].radius;
2260                                                 
2261                                                 if      (start_rad >= 0.0f && end_rad >= 0.0f)  nu->bezt[start_sel].radius = (start_rad + end_rad) / 2.0f;
2262                                                 else if (start_rad >= 0.0f)                     nu->bezt[start_sel].radius = start_rad;
2263                                                 else if (end_rad >= 0.0f)                       nu->bezt[start_sel].radius = end_rad;
2264                                         }
2265                                         else {
2266                                                 /* if endpoints selected, then use them */
2267                                                 if (start_sel == 0) {
2268                                                         start_rad = nu->bezt[start_sel].radius;
2269                                                         start_sel++; /* we don't want to edit the selected endpoint */
2270                                                 }
2271                                                 else {
2272                                                         start_rad = nu->bezt[start_sel - 1].radius;
2273                                                 }
2274                                                 if (end_sel == nu->pntsu - 1) {
2275                                                         end_rad = nu->bezt[end_sel].radius;
2276                                                         end_sel--; /* we don't want to edit the selected endpoint */
2277                                                 }
2278                                                 else {
2279                                                         end_rad = nu->bezt[end_sel + 1].radius;
2280                                                 }
2281                                                 
2282                                                 /* Now Blend between the points */
2283                                                 range = (float)(end_sel - start_sel) + 2.0f;
2284                                                 for (bezt = &nu->bezt[start_sel], a = start_sel; a <= end_sel; a++, bezt++) {
2285                                                         fac = (float)(1 + a - start_sel) / range;
2286                                                         bezt->radius = start_rad * (1.0f - fac) + end_rad * fac;
2287                                                 }
2288                                         }
2289                                 }
2290                         }
2291                 }
2292                 else if (nu->bp) {
2293                         /* Same as above, keep these the same! */
2294                         for (last_sel = 0; last_sel < nu->pntsu; last_sel++) {
2295                                 /* loop over selection segments of a curve, smooth each */
2296                                 
2297                                 /* Start BezTriple code, this is duplicated below for points, make sure these functions stay in sync */
2298                                 start_sel = -1;
2299                                 for (bp = &nu->bp[last_sel], a = last_sel; a < nu->pntsu; a++, bp++) {
2300                                         if (bp->f1 & SELECT) {
2301                                                 start_sel = a;
2302                                                 break;
2303                                         }
2304                                 }
2305                                 /* in case there are no other selected verts */
2306                                 end_sel = start_sel;
2307                                 for (bp = &nu->bp[start_sel + 1], a = start_sel + 1; a < nu->pntsu; a++, bp++) {
2308                                         if ((bp->f1 & SELECT) == 0) {
2309                                                 break;
2310                                         }
2311                                         end_sel = a;
2312                                 }
2313                                 
2314                                 if (start_sel == -1) {
2315                                         last_sel = nu->pntsu; /* next... */
2316                                 }
2317                                 else {
2318                                         last_sel = end_sel; /* before we modify it */
2319                                         
2320                                         /* now blend between start and end sel */
2321                                         start_rad = end_rad = -1.0;
2322                                         
2323                                         if (start_sel == end_sel) {
2324                                                 /* simple, only 1 point selected */
2325                                                 if (start_sel > 0) start_rad = nu->bp[start_sel - 1].radius;
2326                                                 if (end_sel != -1 && end_sel < nu->pntsu) end_rad = nu->bp[start_sel + 1].radius;
2327                                                 
2328                                                 if      (start_rad >= 0.0f && end_rad >= 0.0f)  nu->bp[start_sel].radius = (start_rad + end_rad) / 2;
2329                                                 else if (start_rad >= 0.0f)                     nu->bp[start_sel].radius = start_rad;
2330                                                 else if (end_rad >= 0.0f)                       nu->bp[start_sel].radius = end_rad;
2331                                         }
2332                                         else {
2333                                                 /* if endpoints selected, then use them */
2334                                                 if (start_sel == 0) {
2335                                                         start_rad = nu->bp[start_sel].radius;
2336                                                         start_sel++; /* we don't want to edit the selected endpoint */
2337                                                 }
2338                                                 else {
2339                                                         start_rad = nu->bp[start_sel - 1].radius;
2340                                                 }
2341                                                 if (end_sel == nu->pntsu - 1) {
2342                                                         end_rad = nu->bp[end_sel].radius;
2343                                                         end_sel--; /* we don't want to edit the selected endpoint */
2344                                                 }
2345                                                 else {
2346                                                         end_rad = nu->bp[end_sel + 1].radius;
2347                                                 }
2348                                                 
2349                                                 /* Now Blend between the points */
2350                                                 range = (float)(end_sel - start_sel) + 2.0f;
2351                                                 for (bp = &nu->bp[start_sel], a = start_sel; a <= end_sel; a++, bp++) {
2352                                                         fac = (float)(1 + a - start_sel) / range;
2353                                                         bp->radius = start_rad * (1.0f - fac) + end_rad * fac;
2354                                                 }
2355                                         }
2356                                 }
2357                         }
2358                 }
2359         }
2360
2361         WM_event_add_notifier(C, NC_GEOM | ND_DATA, obedit->data);
2362         DAG_id_tag_update(obedit->data, 0);
2363
2364         return OPERATOR_FINISHED;
2365 }
2366
2367 void CURVE_OT_smooth_radius(wmOperatorType *ot)
2368 {
2369         /* identifiers */
2370         ot->name = "Smooth Curve Radius";
2371         ot->description = "Flatten radii of selected points";
2372         ot->idname = "CURVE_OT_smooth_radius";
2373         
2374         /* api clastbacks */
2375         ot->exec = smooth_radius_exec;
2376         ot->poll = ED_operator_editsurfcurve;
2377         
2378         /* flags */
2379         ot->flag = OPTYPE_REGISTER | OPTYPE_UNDO;
2380 }
2381
2382 /***************** selection utility *************************/
2383
2384 /* next == 1 -> select next         */
2385 /* next == -1 -> select previous    */
2386 /* cont == 1 -> select continuously */
2387 /* selstatus, inverts behavior          */
2388 static void select_adjacent_cp(ListBase *editnurb, short next, short cont, short selstatus)
2389 {
2390         Nurb *nu;
2391         BezTriple *bezt;
2392         BPoint *bp;
2393         int a;
2394         short lastsel = 0;
2395         
2396         if (next == 0) return;
2397         
2398         for (nu = editnurb->first; nu; nu = nu->next) {
2399                 lastsel = 0;
2400                 if (nu->type == CU_BEZIER) {                    
2401                         a = nu->pntsu;
2402                         bezt = nu->bezt;
2403                         if (next < 0) bezt = &nu->bezt[a - 1];
2404                         while (a--) {
2405                                 if (a - abs(next) < 0) break;
2406                                 if ((lastsel == 0) && (bezt->hide == 0) && ((bezt->f2 & SELECT) || (selstatus == 0))) {
2407                                         bezt += next;
2408                                         if (!(bezt->f2 & SELECT) || (selstatus == 0)) {
2409                                                 short sel = select_beztriple(bezt, selstatus, 1, VISIBLE);
2410                                                 if ((sel == 1) && (cont == 0)) lastsel = 1;
2411                                         }
2412                                 }
2413                                 else {
2414                                         bezt += next;
2415                                         lastsel = 0;
2416                                 }
2417                                 /* move around in zigzag way so that we go through each */                              
2418                                 bezt -= (next - next / abs(next));
2419                         }
2420                 }
2421                 else {
2422                         a = nu->pntsu * nu->pntsv;
2423                         bp = nu->bp;
2424                         if (next < 0) bp = &nu->bp[a - 1];
2425                         while (a--) {
2426                                 if (a - abs(next) < 0) break;
2427                                 if ((lastsel == 0) && (bp->hide == 0) && ((bp->f1 & SELECT) || (selstatus == 0))) {
2428                                         bp += next;
2429                                         if (!(bp->f1 & SELECT) || (selstatus == 0)) {
2430                                                 short sel = select_bpoint(bp, selstatus, 1, VISIBLE);
2431                                                 if ((sel == 1) && (cont == 0)) lastsel = 1;
2432                                         }                       
2433                                 }
2434                                 else {
2435                                         bp += next;
2436                                         lastsel = 0;
2437                                 }
2438                                 /* move around in zigzag way so that we go through each */
2439                                 bp -= (next - next / abs(next));
2440                         }
2441                 }
2442         }
2443 }
2444
2445 /**************** select start/end operators **************/
2446
2447 /* (de)selects first or last of visible part of each Nurb depending on selFirst     */
2448 /* selFirst: defines the end of which to select                                     */
2449 /* doswap: defines if selection state of each first/last control point is swapped   */
2450 /* selstatus: selection status in case doswap is false                              */
2451 void selectend_nurb(Object *obedit, short selfirst, short doswap, short selstatus)
2452 {
2453         ListBase *editnurb = object_editcurve_get(obedit);
2454         Nurb *nu;
2455         BPoint *bp;
2456         BezTriple *bezt;
2457         Curve *cu;
2458         int a;
2459
2460         if (obedit == NULL) return;
2461
2462         cu = (Curve *)obedit->data;
2463         cu->lastsel = NULL;
2464
2465         for (nu = editnurb->first; nu; nu = nu->next) {
2466                 if (nu->type == CU_BEZIER) {
2467                         a = nu->pntsu;
2468                         
2469                         /* which point? */
2470                         if (selfirst == 0) { /* select last */
2471                                 bezt = &nu->bezt[a - 1];
2472                         }
2473                         else { /* select first */
2474                                 bezt = nu->bezt;
2475                         }
2476                         
2477                         while (a--) {
2478                                 short sel;
2479                                 if (doswap) sel = swap_selection_beztriple(bezt);
2480                                 else sel = select_beztriple(bezt, selstatus, 1, VISIBLE);
2481                                 
2482                                 if (sel == 1) break;
2483                         }
2484                 }
2485                 else {
2486                         a = nu->pntsu * nu->pntsv;
2487                         
2488                         /* which point? */
2489                         if (selfirst == 0) { /* select last */
2490                                 bp = &nu->bp[a - 1];
2491                         }
2492                         else { /* select first */
2493                                 bp = nu->bp;
2494                         }
2495
2496                         while (a--) {
2497                                 if (bp->hide == 0) {
2498                                         short sel;
2499                                         if (doswap) sel = swap_selection_bpoint(bp);
2500                                         else sel = select_bpoint(bp, selstatus, 1, VISIBLE);
2501                                         
2502                                         if (sel == 1) break;
2503                                 }
2504                         }
2505                 }
2506         }
2507 }
2508
2509 static int de_select_first_exec(bContext *C, wmOperator *UNUSED(op))
2510 {
2511         Object *obedit = CTX_data_edit_object(C);
2512
2513         selectend_nurb(obedit, FIRST, 1, DESELECT);
2514         WM_event_add_notifier(C, NC_GEOM | ND_SELECT, obedit->data);
2515
2516         return OPERATOR_FINISHED;
2517 }
2518
2519 void CURVE_OT_de_select_first(wmOperatorType *ot)
2520 {
2521         /* identifiers */
2522         ot->name = "(De)select First";
2523         ot->idname = "CURVE_OT_de_select_first";
2524         ot->description = "(De)select first of visible part of each Nurb";
2525         
2526         /* api cfirstbacks */
2527         ot->exec = de_select_first_exec;
2528         ot->poll = ED_operator_editcurve;
2529         
2530         /* flags */
2531         ot->flag = OPTYPE_REGISTER | OPTYPE_UNDO;
2532 }
2533
2534 static int de_select_last_exec(bContext *C, wmOperator *UNUSED(op))
2535 {
2536         Object *obedit = CTX_data_edit_object(C);
2537
2538         selectend_nurb(obedit, LAST, 1, DESELECT);
2539         WM_event_add_notifier(C, NC_GEOM | ND_SELECT, obedit->data);
2540
2541         return OPERATOR_FINISHED;
2542 }
2543
2544 void CURVE_OT_de_select_last(wmOperatorType *ot)
2545 {
2546         /* identifiers */
2547         ot->name = "(De)select Last";
2548         ot->idname = "CURVE_OT_de_select_last";
2549         ot->description = "(De)select last of visible part of each Nurb";
2550         
2551         /* api clastbacks */
2552         ot->exec = de_select_last_exec;
2553         ot->poll = ED_operator_editcurve;
2554         
2555         /* flags */
2556         ot->flag = OPTYPE_REGISTER | OPTYPE_UNDO;
2557 }
2558
2559 /******************* de select all operator ***************/
2560
2561 static short nurb_has_selected_cps(ListBase *editnurb)
2562 {
2563         Nurb *nu;
2564         BezTriple *bezt;
2565         BPoint *bp;
2566         int a;
2567
2568         for (nu = editnurb->first; nu; nu = nu->next) {
2569                 if (nu->type == CU_BEZIER) {
2570                         a = nu->pntsu;
2571                         bezt = nu->bezt;
2572                         while (a--) {
2573                                 if (bezt->hide == 0) {
2574                                         if ((bezt->f1 & SELECT) ||
2575                                             (bezt->f2 & SELECT) ||
2576                                             (bezt->f3 & SELECT))
2577                                         {
2578                                                 return 1;
2579                                         }
2580                                 }
2581                                 bezt++;
2582                         }
2583                 }
2584                 else {
2585                         a = nu->pntsu * nu->pntsv;
2586                         bp = nu->bp;
2587                         while (a--) {
2588                                 if ((bp->hide == 0) && (bp->f1 & SELECT)) return 1;
2589                                 bp++;
2590                         }
2591                 }
2592         }
2593         
2594         return 0;
2595 }
2596
2597 static int de_select_all_exec(bContext *C, wmOperator *op)
2598 {
2599         Object *obedit = CTX_data_edit_object(C);
2600         ListBase *editnurb = object_editcurve_get(obedit);
2601         int action = RNA_enum_get(op->ptr, "action");
2602
2603         if (action == SEL_TOGGLE) {
2604                 action = SEL_SELECT;
2605                 if (nurb_has_selected_cps(editnurb))
2606                         action = SEL_DESELECT;
2607         }
2608
2609         switch (action) {
2610                 case SEL_SELECT:
2611                         CU_select_all(obedit);
2612                         break;
2613                 case SEL_DESELECT:
2614                         CU_deselect_all(obedit);
2615                         break;
2616                 case SEL_INVERT:
2617                         CU_select_swap(obedit);
2618                         break;
2619         }
2620         
2621         WM_event_add_notifier(C, NC_GEOM | ND_SELECT, obedit->data);
2622
2623         return OPERATOR_FINISHED;
2624 }
2625
2626 void CURVE_OT_select_all(wmOperatorType *ot)
2627 {
2628         /* identifiers */
2629         ot->name = "(De)select All";
2630         ot->idname = "CURVE_OT_select_all";
2631         ot->description = "(De)select all control points";
2632         
2633         /* api callbacks */
2634         ot->exec = de_select_all_exec;
2635         ot->poll = ED_operator_editsurfcurve;
2636         
2637         /* flags */
2638         ot->flag = OPTYPE_REGISTER | OPTYPE_UNDO;
2639
2640         /* properties */
2641         WM_operator_properties_select_all(ot);
2642 }
2643
2644 /********************** hide operator *********************/
2645
2646 static int hide_exec(bContext *C, wmOperator *op)
2647 {
2648         Object *obedit = CTX_data_edit_object(C);
2649         Curve *cu = obedit->data;
2650         ListBase *editnurb = object_editcurve_get(obedit);
2651         Nurb *nu;
2652         BPoint *bp;
2653         BezTriple *bezt;
2654         int a, sel, invert = RNA_boolean_get(op->ptr, "unselected");
2655
2656         for (nu = editnurb->first; nu; nu = nu->next) {
2657                 if (nu->type == CU_BEZIER) {
2658                         bezt = nu->bezt;
2659                         a = nu->pntsu;
2660                         sel = 0;
2661                         while (a--) {
2662                                 if (invert == 0 && BEZSELECTED_HIDDENHANDLES(cu, bezt)) {
2663                                         select_beztriple(bezt, DESELECT, 1, HIDDEN);
2664                                         bezt->hide = 1;
2665                                 }
2666                                 else if (invert && !BEZSELECTED_HIDDENHANDLES(cu, bezt)) {
2667                                         select_beztriple(bezt, DESELECT, 1, HIDDEN);
2668                                         bezt->hide = 1;
2669                                 }
2670                                 if (bezt->hide) sel++;
2671                                 bezt++;
2672                         }
2673                         if (sel == nu->pntsu) nu->hide = 1;
2674                 }
2675                 else {
2676                         bp = nu->bp;
2677                         a = nu->pntsu * nu->pntsv;
2678                         sel = 0;
2679                         while (a--) {
2680                                 if (invert == 0 && (bp->f1 & SELECT)) {
2681                                         select_bpoint(bp, DESELECT, 1, HIDDEN);
2682                                         bp->hide = 1;
2683                                 }
2684                                 else if (invert && (bp->f1 & SELECT) == 0) {
2685                                         select_bpoint(bp, DESELECT, 1, HIDDEN);
2686                                         bp->hide = 1;
2687                                 }
2688                                 if (bp->hide) sel++;
2689                                 bp++;
2690                         }
2691                         if (sel == nu->pntsu * nu->pntsv) nu->hide = 1;
2692                 }
2693         }
2694
2695         DAG_id_tag_update(obedit->data, 0);
2696         WM_event_add_notifier(C, NC_GEOM | ND_SELECT, obedit->data);
2697
2698         return OPERATOR_FINISHED;       
2699 }
2700
2701 void CURVE_OT_hide(wmOperatorType *ot)
2702 {
2703         /* identifiers */
2704         ot->name = "Hide Selected";
2705         ot->idname = "CURVE_OT_hide";
2706         ot->description = "Hide (un)selected control points";
2707         
2708         /* api callbacks */
2709         ot->exec = hide_exec;
2710         ot->poll = ED_operator_editsurfcurve;
2711         
2712         /* flags */
2713         ot->flag = OPTYPE_REGISTER | OPTYPE_UNDO;
2714         
2715         /* props */
2716         RNA_def_boolean(ot->srna, "unselected", 0, "Unselected", "Hide unselected rather than selected");
2717 }
2718
2719 /********************** reveal operator *********************/
2720
2721 static int reveal_exec(bContext *C, wmOperator *UNUSED(op))
2722 {
2723         Object *obedit = CTX_data_edit_object(C);
2724         ListBase *editnurb = object_editcurve_get(obedit);
2725         Nurb *nu;
2726         BPoint *bp;
2727         BezTriple *bezt;
2728         int a;
2729
2730         for (nu = editnurb->first; nu; nu = nu->next) {
2731                 nu->hide = 0;
2732                 if (nu->type == CU_BEZIER) {
2733                         bezt = nu->bezt;
2734                         a = nu->pntsu;
2735                         while (a--) {
2736                                 if (bezt->hide) {
2737                                         select_beztriple(bezt, SELECT, 1, HIDDEN);
2738                                         bezt->hide = 0;
2739                                 }
2740                                 bezt++;
2741                         }
2742                 }
2743                 else {
2744                         bp = nu->bp;
2745                         a = nu->pntsu * nu->pntsv;
2746                         while (a--) {
2747                                 if (bp->hide) {
2748                                         select_bpoint(bp, SELECT, 1, HIDDEN);
2749                                         bp->hide = 0;
2750                                 }
2751                                 bp++;
2752                         }
2753                 }
2754         }
2755
2756         DAG_id_tag_update(obedit->data, 0);
2757         WM_event_add_notifier(C, NC_GEOM | ND_SELECT, obedit->data);
2758
2759         return OPERATOR_FINISHED;       
2760 }
2761
2762 void CURVE_OT_reveal(wmOperatorType *ot)
2763 {
2764         /* identifiers */
2765         ot->name = "Reveal Hidden";
2766         ot->idname = "CURVE_OT_reveal";
2767         ot->description = "Show again hidden control points";
2768         
2769         /* api callbacks */
2770         ot->exec = reveal_exec;
2771         ot->poll = ED_operator_editsurfcurve;
2772         
2773         /* flags */
2774         ot->flag = OPTYPE_REGISTER | OPTYPE_UNDO;
2775 }
2776
2777 /********************** subdivide operator *********************/
2778
2779 /** Divide the line segments associated with the currently selected
2780  * curve nodes (Bezier or NURB). If there are no valid segment
2781  * selections within the current selection, nothing happens.
2782  */
2783 static void subdividenurb(Object *obedit, int number_cuts)
2784 {
2785         Curve *cu = obedit->data;
2786         EditNurb *editnurb = cu->editnurb;
2787         Nurb *nu;
2788         BezTriple *prevbezt, *bezt, *beztnew, *beztn;
2789         BPoint *bp, *prevbp, *bpnew, *bpn;
2790         float vec[15];
2791         int a, b, sel, amount, *usel, *vsel, i;
2792         float factor;
2793
2794         // printf("*** subdivideNurb: entering subdivide\n");
2795
2796         for (nu = editnurb->nurbs.first; nu; nu = nu->next) {
2797                 amount = 0;
2798                 if (nu->type == CU_BEZIER) {
2799                         /*
2800                          * Insert a point into a 2D Bezier curve.
2801                          * Endpoints are preserved. Otherwise, all selected and inserted points are
2802                          * newly created. Old points are discarded.
2803                          */
2804                         /* count */
2805                         if (nu->flagu & CU_NURB_CYCLIC) {
2806                                 a = nu->pntsu;
2807                                 bezt = nu->bezt;
2808                                 prevbezt = bezt + (a - 1);
2809                         }
2810                         else {
2811                                 a = nu->pntsu - 1;
2812                                 prevbezt = nu->bezt;
2813                                 bezt = prevbezt + 1;
2814                         }
2815                         while (a--) {
2816                                 if (BEZSELECTED_HIDDENHANDLES(cu, prevbezt) && BEZSELECTED_HIDDENHANDLES(cu, bezt) ) amount += number_cuts;
2817                                 prevbezt = bezt;
2818                                 bezt++;
2819                         }
2820
2821                         if (amount) {
2822                                 /* insert */
2823                                 beztnew = (BezTriple *)MEM_mallocN((amount + nu->pntsu) * sizeof(BezTriple), "subdivNurb");
2824                                 beztn = beztnew;
2825                                 if (nu->flagu & CU_NURB_CYCLIC) {
2826                                         a = nu->pntsu;
2827                                         bezt = nu->bezt;
2828                                         prevbezt = bezt + (a - 1);
2829                                 }
2830                                 else {
2831                                         a = nu->pntsu - 1;
2832                                         prevbezt = nu->bezt;
2833                                         bezt = prevbezt + 1;
2834                                 }
2835                                 while (a--) {
2836                                         memcpy(beztn, prevbezt, sizeof(BezTriple));
2837                                         keyIndex_updateBezt(editnurb, prevbezt, beztn, 1);
2838                                         beztn++;
2839
2840                                         if (BEZSELECTED_HIDDENHANDLES(cu, prevbezt) && BEZSELECTED_HIDDENHANDLES(cu, bezt) ) {
2841                                                 float prevvec[3][3];
2842
2843                                                 memcpy(prevvec, prevbezt->vec, sizeof(float) * 9);
2844
2845                                                 for (i = 0; i < number_cuts; i++) {
2846                                                         factor = 1.0f / (number_cuts + 1 - i);
2847
2848                                                         memcpy(beztn, bezt, sizeof(BezTriple));