3D mouse support from merwin-spacenav branch
[blender.git] / source / blender / editors / transform / transform.c
1 /*
2  * $Id$
3  *
4  * ***** BEGIN GPL LICENSE BLOCK *****
5  *
6  * This program is free software; you can redistribute it and/or
7  * modify it under the terms of the GNU General Public License
8  * as published by the Free Software Foundation; either version 2
9  * of the License, or (at your option) any later version.
10  *
11  * This program is distributed in the hope that it will be useful,
12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
14  * GNU General Public License for more details.
15  *
16  * You should have received a copy of the GNU General Public License
17  * along with this program; if not, write to the Free Software Foundation,
18  * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
19  *
20  * The Original Code is Copyright (C) 2001-2002 by NaN Holding BV.
21  * All rights reserved.
22  *
23  * The Original Code is: all of this file.
24  *
25  * Contributor(s): none yet.
26  *
27  * ***** END GPL LICENSE BLOCK *****
28  */
29
30 /** \file blender/editors/transform/transform.c
31  *  \ingroup edtransform
32  */
33
34
35 #include <stdlib.h>
36 #include <stdio.h>
37 #include <string.h>
38 #include <math.h>
39 #include <float.h>
40
41 #ifndef WIN32
42 #include <unistd.h>
43 #else
44 #include <io.h>
45 #endif
46
47 #include "MEM_guardedalloc.h"
48
49 #include "DNA_anim_types.h"
50 #include "DNA_armature_types.h"
51 #include "DNA_constraint_types.h"
52 #include "DNA_meshdata_types.h"
53 #include "DNA_scene_types.h"            /* PET modes                    */
54
55 #include "RNA_access.h"
56
57 #include "BIF_gl.h"
58 #include "BIF_glutil.h"
59
60 #include "BKE_nla.h"
61 #include "BKE_bmesh.h"
62 #include "BKE_context.h"
63 #include "BKE_constraint.h"
64 #include "BKE_global.h"
65 #include "BKE_particle.h"
66 #include "BKE_pointcache.h"
67 #include "BKE_unit.h"
68
69 #include "ED_image.h"
70 #include "ED_keyframing.h"
71 #include "ED_screen.h"
72 #include "ED_space_api.h"
73 #include "ED_markers.h"
74 #include "ED_view3d.h"
75 #include "ED_mesh.h"
76
77 #include "UI_view2d.h"
78 #include "WM_types.h"
79 #include "WM_api.h"
80
81 #include "BLI_math.h"
82 #include "BLI_blenlib.h"
83 #include "BLI_utildefines.h"
84 #include "BLI_editVert.h"
85 #include "BLI_ghash.h"
86 #include "BLI_linklist.h"
87
88 #include "UI_resources.h"
89
90 //#include "blendef.h"
91 //
92 //#include "mydevice.h"
93
94 #include "transform.h"
95
96 void drawTransformApply(const struct bContext *C, struct ARegion *ar, void *arg);
97 int doEdgeSlide(TransInfo *t, float perc);
98
99 /* ************************** SPACE DEPENDANT CODE **************************** */
100
101 void setTransformViewMatrices(TransInfo *t)
102 {
103         if(t->spacetype==SPACE_VIEW3D && t->ar && t->ar->regiontype == RGN_TYPE_WINDOW) {
104                 RegionView3D *rv3d = t->ar->regiondata;
105
106                 copy_m4_m4(t->viewmat, rv3d->viewmat);
107                 copy_m4_m4(t->viewinv, rv3d->viewinv);
108                 copy_m4_m4(t->persmat, rv3d->persmat);
109                 copy_m4_m4(t->persinv, rv3d->persinv);
110                 t->persp = rv3d->persp;
111         }
112         else {
113                 unit_m4(t->viewmat);
114                 unit_m4(t->viewinv);
115                 unit_m4(t->persmat);
116                 unit_m4(t->persinv);
117                 t->persp = RV3D_ORTHO;
118         }
119
120         calculateCenter2D(t);
121 }
122
123 void convertViewVec(TransInfo *t, float *vec, int dx, int dy)
124 {
125         if (t->spacetype==SPACE_VIEW3D) {
126                 if (t->ar->regiontype == RGN_TYPE_WINDOW) {
127                         float mval_f[2];
128                         mval_f[0]= dx;
129                         mval_f[1]= dy;
130                         ED_view3d_win_to_delta(t->ar, mval_f, vec);
131                 }
132         }
133         else if(t->spacetype==SPACE_IMAGE) {
134                 View2D *v2d = t->view;
135                 float divx, divy, aspx, aspy;
136
137                 ED_space_image_uv_aspect(t->sa->spacedata.first, &aspx, &aspy);
138
139                 divx= v2d->mask.xmax-v2d->mask.xmin;
140                 divy= v2d->mask.ymax-v2d->mask.ymin;
141
142                 vec[0]= aspx*(v2d->cur.xmax-v2d->cur.xmin)*(dx)/divx;
143                 vec[1]= aspy*(v2d->cur.ymax-v2d->cur.ymin)*(dy)/divy;
144                 vec[2]= 0.0f;
145         }
146         else if(ELEM(t->spacetype, SPACE_IPO, SPACE_NLA)) {
147                 View2D *v2d = t->view;
148                 float divx, divy;
149
150                 divx= v2d->mask.xmax-v2d->mask.xmin;
151                 divy= v2d->mask.ymax-v2d->mask.ymin;
152
153                 vec[0]= (v2d->cur.xmax-v2d->cur.xmin)*(dx) / (divx);
154                 vec[1]= (v2d->cur.ymax-v2d->cur.ymin)*(dy) / (divy);
155                 vec[2]= 0.0f;
156         }
157         else if(t->spacetype==SPACE_NODE) {
158                 View2D *v2d = &t->ar->v2d;
159                 float divx, divy;
160
161                 divx= v2d->mask.xmax-v2d->mask.xmin;
162                 divy= v2d->mask.ymax-v2d->mask.ymin;
163
164                 vec[0]= (v2d->cur.xmax-v2d->cur.xmin)*(dx)/divx;
165                 vec[1]= (v2d->cur.ymax-v2d->cur.ymin)*(dy)/divy;
166                 vec[2]= 0.0f;
167         }
168         else if(t->spacetype==SPACE_SEQ) {
169                 View2D *v2d = &t->ar->v2d;
170                 float divx, divy;
171
172                 divx= v2d->mask.xmax-v2d->mask.xmin;
173                 divy= v2d->mask.ymax-v2d->mask.ymin;
174
175                 vec[0]= (v2d->cur.xmax-v2d->cur.xmin)*(dx)/divx;
176                 vec[1]= (v2d->cur.ymax-v2d->cur.ymin)*(dy)/divy;
177                 vec[2]= 0.0f;
178         }
179 }
180
181 void projectIntView(TransInfo *t, float *vec, int *adr)
182 {
183         if (t->spacetype==SPACE_VIEW3D) {
184                 if(t->ar->regiontype == RGN_TYPE_WINDOW)
185                         project_int_noclip(t->ar, vec, adr);
186         }
187         else if(t->spacetype==SPACE_IMAGE) {
188                 float aspx, aspy, v[2];
189
190                 ED_space_image_uv_aspect(t->sa->spacedata.first, &aspx, &aspy);
191                 v[0]= vec[0]/aspx;
192                 v[1]= vec[1]/aspy;
193
194                 UI_view2d_to_region_no_clip(t->view, v[0], v[1], adr, adr+1);
195         }
196         else if(t->spacetype == SPACE_ACTION) {
197                 int out[2] = {0, 0};
198 #if 0
199                 SpaceAction *sact = t->sa->spacedata.first;
200
201                 if (sact->flag & SACTION_DRAWTIME) {
202                         //vec[0] = vec[0]/((t->scene->r.frs_sec / t->scene->r.frs_sec_base));
203                         /* same as below */
204                         UI_view2d_to_region_no_clip((View2D *)t->view, vec[0], vec[1], out, out+1);
205                 } 
206                 else
207 #endif
208                 {
209                         UI_view2d_to_region_no_clip((View2D *)t->view, vec[0], vec[1], out, out+1);
210                 }
211
212                 adr[0]= out[0];
213                 adr[1]= out[1];
214         }
215         else if(ELEM(t->spacetype, SPACE_IPO, SPACE_NLA)) {
216                 int out[2] = {0, 0};
217
218                 UI_view2d_to_region_no_clip((View2D *)t->view, vec[0], vec[1], out, out+1);
219                 adr[0]= out[0];
220                 adr[1]= out[1];
221         }
222         else if(t->spacetype==SPACE_SEQ) { /* XXX not tested yet, but should work */
223                 int out[2] = {0, 0};
224
225                 UI_view2d_to_region_no_clip((View2D *)t->view, vec[0], vec[1], out, out+1);
226                 adr[0]= out[0];
227                 adr[1]= out[1];
228         }
229 }
230
231 void projectFloatView(TransInfo *t, float *vec, float *adr)
232 {
233         if (t->spacetype==SPACE_VIEW3D) {
234                 if(t->ar->regiontype == RGN_TYPE_WINDOW)
235                         project_float_noclip(t->ar, vec, adr);
236         }
237         else if(t->spacetype==SPACE_IMAGE) {
238                 int a[2];
239
240                 projectIntView(t, vec, a);
241                 adr[0]= a[0];
242                 adr[1]= a[1];
243         }
244         else if(ELEM(t->spacetype, SPACE_IPO, SPACE_NLA)) {
245                 int a[2];
246
247                 projectIntView(t, vec, a);
248                 adr[0]= a[0];
249                 adr[1]= a[1];
250         }
251 }
252
253 void applyAspectRatio(TransInfo *t, float *vec)
254 {
255         if ((t->spacetype==SPACE_IMAGE) && (t->mode==TFM_TRANSLATION)) {
256                 SpaceImage *sima= t->sa->spacedata.first;
257                 float aspx, aspy;
258
259                 if((sima->flag & SI_COORDFLOATS)==0) {
260                         int width, height;
261                         ED_space_image_size(sima, &width, &height);
262
263                         vec[0] *= width;
264                         vec[1] *= height;
265                 }
266
267                 ED_space_image_uv_aspect(sima, &aspx, &aspy);
268                 vec[0] /= aspx;
269                 vec[1] /= aspy;
270         }
271 }
272
273 void removeAspectRatio(TransInfo *t, float *vec)
274 {
275         if ((t->spacetype==SPACE_IMAGE) && (t->mode==TFM_TRANSLATION)) {
276                 SpaceImage *sima= t->sa->spacedata.first;
277                 float aspx, aspy;
278
279                 if((sima->flag & SI_COORDFLOATS)==0) {
280                         int width, height;
281                         ED_space_image_size(sima, &width, &height);
282
283                         vec[0] /= width;
284                         vec[1] /= height;
285                 }
286
287                 ED_space_image_uv_aspect(sima, &aspx, &aspy);
288                 vec[0] *= aspx;
289                 vec[1] *= aspy;
290         }
291 }
292
293 static void viewRedrawForce(const bContext *C, TransInfo *t)
294 {
295         if (t->spacetype == SPACE_VIEW3D)
296         {
297                 /* Do we need more refined tags? */
298                 if(t->flag & T_POSE)
299                         WM_event_add_notifier(C, NC_OBJECT|ND_POSE, NULL);
300                 else
301                         WM_event_add_notifier(C, NC_OBJECT|ND_TRANSFORM, NULL);
302                 
303                 /* for realtime animation record - send notifiers recognised by animation editors */
304                 // XXX: is this notifier a lame duck?
305                 if ((t->animtimer) && IS_AUTOKEY_ON(t->scene))
306                         WM_event_add_notifier(C, NC_OBJECT|ND_KEYS, NULL);
307                 
308         }
309         else if (t->spacetype == SPACE_ACTION) {
310                 //SpaceAction *saction= (SpaceAction *)t->sa->spacedata.first;
311                 WM_event_add_notifier(C, NC_ANIMATION|ND_KEYFRAME|NA_EDITED, NULL);
312         }
313         else if (t->spacetype == SPACE_IPO) {
314                 //SpaceIpo *sipo= (SpaceIpo *)t->sa->spacedata.first;
315                 WM_event_add_notifier(C, NC_ANIMATION|ND_KEYFRAME|NA_EDITED, NULL);
316         }
317         else if (t->spacetype == SPACE_NLA) {
318                 WM_event_add_notifier(C, NC_ANIMATION|ND_NLA|NA_EDITED, NULL);
319         }
320         else if(t->spacetype == SPACE_NODE)
321         {
322                 //ED_area_tag_redraw(t->sa);
323                 WM_event_add_notifier(C, NC_SPACE|ND_SPACE_NODE_VIEW, NULL);
324         }
325         else if(t->spacetype == SPACE_SEQ)
326         {
327                 WM_event_add_notifier(C, NC_SCENE|ND_SEQUENCER, NULL);
328         }
329         else if (t->spacetype==SPACE_IMAGE) {
330                 // XXX how to deal with lock?
331                 SpaceImage *sima= (SpaceImage*)t->sa->spacedata.first;
332                 if(sima->lock) WM_event_add_notifier(C, NC_GEOM|ND_DATA, t->obedit->data);
333                 else ED_area_tag_redraw(t->sa);
334         }
335 }
336
337 static void viewRedrawPost(bContext *C, TransInfo *t)
338 {
339         ED_area_headerprint(t->sa, NULL);
340         
341         if(t->spacetype == SPACE_VIEW3D) {
342                 /* if autokeying is enabled, send notifiers that keyframes were added */
343                 if (IS_AUTOKEY_ON(t->scene))
344                         WM_main_add_notifier(NC_ANIMATION|ND_KEYFRAME|NA_EDITED, NULL);
345                 
346                 /* XXX temp, first hack to get auto-render in compositor work (ton) */
347                 WM_event_add_notifier(C, NC_SCENE|ND_TRANSFORM_DONE, CTX_data_scene(C));
348
349         }
350         
351 #if 0 // TRANSFORM_FIX_ME
352         if(t->spacetype==SPACE_VIEW3D) {
353                 allqueue(REDRAWBUTSOBJECT, 0);
354                 allqueue(REDRAWVIEW3D, 0);
355         }
356         else if(t->spacetype==SPACE_IMAGE) {
357                 allqueue(REDRAWIMAGE, 0);
358                 allqueue(REDRAWVIEW3D, 0);
359         }
360         else if(ELEM3(t->spacetype, SPACE_ACTION, SPACE_NLA, SPACE_IPO)) {
361                 allqueue(REDRAWVIEW3D, 0);
362                 allqueue(REDRAWACTION, 0);
363                 allqueue(REDRAWNLA, 0);
364                 allqueue(REDRAWIPO, 0);
365                 allqueue(REDRAWTIME, 0);
366                 allqueue(REDRAWBUTSOBJECT, 0);
367         }
368
369         scrarea_queue_headredraw(curarea);
370 #endif
371 }
372
373 /* ************************** TRANSFORMATIONS **************************** */
374
375 void BIF_selectOrientation(void) {
376 #if 0 // TRANSFORM_FIX_ME
377         short val;
378         char *str_menu = BIF_menustringTransformOrientation("Orientation");
379         val= pupmenu(str_menu);
380         MEM_freeN(str_menu);
381
382         if(val >= 0) {
383                 G.vd->twmode = val;
384         }
385 #endif
386 }
387
388 static void view_editmove(unsigned short UNUSED(event))
389 {
390 #if 0 // TRANSFORM_FIX_ME
391         int refresh = 0;
392         /* Regular:   Zoom in */
393         /* Shift:     Scroll up */
394         /* Ctrl:      Scroll right */
395         /* Alt-Shift: Rotate up */
396         /* Alt-Ctrl:  Rotate right */
397
398         /* only work in 3D window for now
399          * In the end, will have to send to event to a 2D window handler instead
400          */
401         if (Trans.flag & T_2D_EDIT)
402                 return;
403
404         switch(event) {
405                 case WHEELUPMOUSE:
406
407                         if( G.qual & LR_SHIFTKEY ) {
408                                 if( G.qual & LR_ALTKEY ) {
409                                         G.qual &= ~LR_SHIFTKEY;
410                                         persptoetsen(PAD2);
411                                         G.qual |= LR_SHIFTKEY;
412                                 } else {
413                                         persptoetsen(PAD2);
414                                 }
415                         } else if( G.qual & LR_CTRLKEY ) {
416                                 if( G.qual & LR_ALTKEY ) {
417                                         G.qual &= ~LR_CTRLKEY;
418                                         persptoetsen(PAD4);
419                                         G.qual |= LR_CTRLKEY;
420                                 } else {
421                                         persptoetsen(PAD4);
422                                 }
423                         } else if(U.uiflag & USER_WHEELZOOMDIR)
424                                 persptoetsen(PADMINUS);
425                         else
426                                 persptoetsen(PADPLUSKEY);
427
428                         refresh = 1;
429                         break;
430                 case WHEELDOWNMOUSE:
431                         if( G.qual & LR_SHIFTKEY ) {
432                                 if( G.qual & LR_ALTKEY ) {
433                                         G.qual &= ~LR_SHIFTKEY;
434                                         persptoetsen(PAD8);
435                                         G.qual |= LR_SHIFTKEY;
436                                 } else {
437                                         persptoetsen(PAD8);
438                                 }
439                         } else if( G.qual & LR_CTRLKEY ) {
440                                 if( G.qual & LR_ALTKEY ) {
441                                         G.qual &= ~LR_CTRLKEY;
442                                         persptoetsen(PAD6);
443                                         G.qual |= LR_CTRLKEY;
444                                 } else {
445                                         persptoetsen(PAD6);
446                                 }
447                         } else if(U.uiflag & USER_WHEELZOOMDIR)
448                                 persptoetsen(PADPLUSKEY);
449                         else
450                                 persptoetsen(PADMINUS);
451
452                         refresh = 1;
453                         break;
454         }
455
456         if (refresh)
457                 setTransformViewMatrices(&Trans);
458 #endif
459 }
460
461 /* ************************************************* */
462
463 /* NOTE: these defines are saved in keymap files, do not change values but just add new ones */
464 #define TFM_MODAL_CANCEL                1
465 #define TFM_MODAL_CONFIRM               2
466 #define TFM_MODAL_TRANSLATE             3
467 #define TFM_MODAL_ROTATE                4
468 #define TFM_MODAL_RESIZE                5
469 #define TFM_MODAL_SNAP_INV_ON   6
470 #define TFM_MODAL_SNAP_INV_OFF  7
471 #define TFM_MODAL_SNAP_TOGGLE   8
472 #define TFM_MODAL_AXIS_X                9
473 #define TFM_MODAL_AXIS_Y                10
474 #define TFM_MODAL_AXIS_Z                11
475 #define TFM_MODAL_PLANE_X               12
476 #define TFM_MODAL_PLANE_Y               13
477 #define TFM_MODAL_PLANE_Z               14
478 #define TFM_MODAL_CONS_OFF              15
479 #define TFM_MODAL_ADD_SNAP              16
480 #define TFM_MODAL_REMOVE_SNAP   17
481 /*      18 and 19 used by numinput, defined in transform.h
482  * */
483 #define TFM_MODAL_PROPSIZE_UP   20
484 #define TFM_MODAL_PROPSIZE_DOWN 21
485 #define TFM_MODAL_AUTOIK_LEN_INC 22
486 #define TFM_MODAL_AUTOIK_LEN_DEC 23
487
488 /* called in transform_ops.c, on each regeneration of keymaps */
489 wmKeyMap* transform_modal_keymap(wmKeyConfig *keyconf)
490 {
491         static EnumPropertyItem modal_items[] = {
492         {TFM_MODAL_CANCEL, "CANCEL", 0, "Cancel", ""},
493         {TFM_MODAL_CONFIRM, "CONFIRM", 0, "Confirm", ""},
494         {TFM_MODAL_TRANSLATE, "TRANSLATE", 0, "Translate", ""},
495         {TFM_MODAL_ROTATE, "ROTATE", 0, "Rotate", ""},
496         {TFM_MODAL_RESIZE, "RESIZE", 0, "Resize", ""},
497         {TFM_MODAL_SNAP_INV_ON, "SNAP_INV_ON", 0, "Invert Snap On", ""},
498         {TFM_MODAL_SNAP_INV_OFF, "SNAP_INV_OFF", 0, "Invert Snap Off", ""},
499         {TFM_MODAL_SNAP_TOGGLE, "SNAP_TOGGLE", 0, "Snap Toggle", ""},
500         {TFM_MODAL_AXIS_X, "AXIS_X", 0, "Orientation X axis", ""},
501         {TFM_MODAL_AXIS_Y, "AXIS_Y", 0, "Orientation Y axis", ""},
502         {TFM_MODAL_AXIS_Z, "AXIS_Z", 0, "Orientation Z axis", ""},
503         {TFM_MODAL_PLANE_X, "PLANE_X", 0, "Orientation X plane", ""},
504         {TFM_MODAL_PLANE_Y, "PLANE_Y", 0, "Orientation Y plane", ""},
505         {TFM_MODAL_PLANE_Z, "PLANE_Z", 0, "Orientation Z plane", ""},
506         {TFM_MODAL_CONS_OFF, "CONS_OFF", 0, "Remove Constraints", ""},
507         {TFM_MODAL_ADD_SNAP, "ADD_SNAP", 0, "Add Snap Point", ""},
508         {TFM_MODAL_REMOVE_SNAP, "REMOVE_SNAP", 0, "Remove Last Snap Point", ""},
509         {NUM_MODAL_INCREMENT_UP, "INCREMENT_UP", 0, "Numinput Increment Up", ""},
510         {NUM_MODAL_INCREMENT_DOWN, "INCREMENT_DOWN", 0, "Numinput Increment Down", ""},
511         {TFM_MODAL_PROPSIZE_UP, "PROPORTIONAL_SIZE_UP", 0, "Increase Proportional Influence", ""},
512         {TFM_MODAL_PROPSIZE_DOWN, "PROPORTIONAL_SIZE_DOWN", 0, "Decrease Poportional Influence", ""},
513         {TFM_MODAL_AUTOIK_LEN_INC, "AUTOIK_CHAIN_LEN_UP", 0, "Increase Max AutoIK Chain Length", ""},
514         {TFM_MODAL_AUTOIK_LEN_DEC, "AUTOIK_CHAIN_LEN_DOWN", 0, "Decrease Max AutoIK Chain Length", ""},
515         {0, NULL, 0, NULL, NULL}};
516         
517         wmKeyMap *keymap= WM_modalkeymap_get(keyconf, "Transform Modal Map");
518         
519         /* this function is called for each spacetype, only needs to add map once */
520         if(keymap) return NULL;
521         
522         keymap= WM_modalkeymap_add(keyconf, "Transform Modal Map", modal_items);
523         
524         /* items for modal map */
525         WM_modalkeymap_add_item(keymap, ESCKEY,    KM_PRESS, KM_ANY, 0, TFM_MODAL_CANCEL);
526         WM_modalkeymap_add_item(keymap, LEFTMOUSE, KM_PRESS, KM_ANY, 0, TFM_MODAL_CONFIRM);
527         WM_modalkeymap_add_item(keymap, RETKEY, KM_PRESS, KM_ANY, 0, TFM_MODAL_CONFIRM);
528         WM_modalkeymap_add_item(keymap, PADENTER, KM_PRESS, KM_ANY, 0, TFM_MODAL_CONFIRM);
529
530         WM_modalkeymap_add_item(keymap, GKEY, KM_PRESS, 0, 0, TFM_MODAL_TRANSLATE);
531         WM_modalkeymap_add_item(keymap, RKEY, KM_PRESS, 0, 0, TFM_MODAL_ROTATE);
532         WM_modalkeymap_add_item(keymap, SKEY, KM_PRESS, 0, 0, TFM_MODAL_RESIZE);
533         
534         WM_modalkeymap_add_item(keymap, TABKEY, KM_PRESS, KM_SHIFT, 0, TFM_MODAL_SNAP_TOGGLE);
535
536         WM_modalkeymap_add_item(keymap, LEFTCTRLKEY, KM_PRESS, KM_ANY, 0, TFM_MODAL_SNAP_INV_ON);
537         WM_modalkeymap_add_item(keymap, LEFTCTRLKEY, KM_RELEASE, KM_ANY, 0, TFM_MODAL_SNAP_INV_OFF);
538
539         WM_modalkeymap_add_item(keymap, RIGHTCTRLKEY, KM_PRESS, KM_ANY, 0, TFM_MODAL_SNAP_INV_ON);
540         WM_modalkeymap_add_item(keymap, RIGHTCTRLKEY, KM_RELEASE, KM_ANY, 0, TFM_MODAL_SNAP_INV_OFF);
541         
542         WM_modalkeymap_add_item(keymap, AKEY, KM_PRESS, 0, 0, TFM_MODAL_ADD_SNAP);
543         WM_modalkeymap_add_item(keymap, AKEY, KM_PRESS, KM_ALT, 0, TFM_MODAL_REMOVE_SNAP);
544
545         WM_modalkeymap_add_item(keymap, PAGEUPKEY, KM_PRESS, 0, 0, TFM_MODAL_PROPSIZE_UP);
546         WM_modalkeymap_add_item(keymap, PAGEDOWNKEY, KM_PRESS, 0, 0, TFM_MODAL_PROPSIZE_DOWN);
547         WM_modalkeymap_add_item(keymap, WHEELDOWNMOUSE, KM_PRESS, 0, 0, TFM_MODAL_PROPSIZE_UP);
548         WM_modalkeymap_add_item(keymap, WHEELUPMOUSE, KM_PRESS, 0, 0, TFM_MODAL_PROPSIZE_DOWN);
549         
550         WM_modalkeymap_add_item(keymap, PAGEUPKEY, KM_PRESS, KM_SHIFT, 0, TFM_MODAL_AUTOIK_LEN_INC);
551         WM_modalkeymap_add_item(keymap, PAGEDOWNKEY, KM_PRESS, KM_SHIFT, 0, TFM_MODAL_AUTOIK_LEN_DEC);
552         WM_modalkeymap_add_item(keymap, WHEELDOWNMOUSE, KM_PRESS, KM_SHIFT, 0, TFM_MODAL_AUTOIK_LEN_INC);
553         WM_modalkeymap_add_item(keymap, WHEELUPMOUSE, KM_PRESS, KM_SHIFT, 0, TFM_MODAL_AUTOIK_LEN_DEC);
554         
555         return keymap;
556 }
557
558
559 int transformEvent(TransInfo *t, wmEvent *event)
560 {
561         float mati[3][3]= MAT3_UNITY;
562         char cmode = constraintModeToChar(t);
563         int handled = 1;
564
565         t->redraw |= handleMouseInput(t, &t->mouse, event);
566
567         if (event->type == MOUSEMOVE)
568         {
569                 if (t->modifiers & MOD_CONSTRAINT_SELECT)
570                         t->con.mode |= CON_SELECT;
571
572                 VECCOPY2D(t->mval, event->mval);
573
574                 // t->redraw |= TREDRAW_SOFT; /* Use this for soft redraw. Might cause flicker in object mode */
575                 t->redraw |= TREDRAW_HARD;
576
577
578                 if (t->state == TRANS_STARTING) {
579                         t->state = TRANS_RUNNING;
580                 }
581
582                 applyMouseInput(t, &t->mouse, t->mval, t->values);
583         }
584
585         /* handle modal keymap first */
586         if (event->type == EVT_MODAL_MAP) {
587                 switch (event->val) {
588                         case TFM_MODAL_CANCEL:
589                                 t->state = TRANS_CANCEL;
590                                 break;
591                         case TFM_MODAL_CONFIRM:
592                                 t->state = TRANS_CONFIRM;
593                                 break;
594                         case TFM_MODAL_TRANSLATE:
595                                 /* only switch when... */
596                                 if( ELEM3(t->mode, TFM_ROTATION, TFM_RESIZE, TFM_TRACKBALL) ) {
597                                         resetTransRestrictions(t);
598                                         restoreTransObjects(t);
599                                         initTranslation(t);
600                                         initSnapping(t, NULL); // need to reinit after mode change
601                                         t->redraw |= TREDRAW_HARD;
602                                 }
603                                 break;
604                         case TFM_MODAL_ROTATE:
605                                 /* only switch when... */
606                                 if(!(t->options & CTX_TEXTURE)) {
607                                         if( ELEM4(t->mode, TFM_ROTATION, TFM_RESIZE, TFM_TRACKBALL, TFM_TRANSLATION) ) {
608                                                 
609                                                 resetTransRestrictions(t);
610                                                 
611                                                 if (t->mode == TFM_ROTATION) {
612                                                         restoreTransObjects(t);
613                                                         initTrackball(t);
614                                                 }
615                                                 else {
616                                                         restoreTransObjects(t);
617                                                         initRotation(t);
618                                                 }
619                                                 initSnapping(t, NULL); // need to reinit after mode change
620                                                 t->redraw |= TREDRAW_HARD;
621                                         }
622                                 }
623                                 break;
624                         case TFM_MODAL_RESIZE:
625                                 /* only switch when... */
626                                 if( ELEM3(t->mode, TFM_ROTATION, TFM_TRANSLATION, TFM_TRACKBALL) ) {
627                                         resetTransRestrictions(t);
628                                         restoreTransObjects(t);
629                                         initResize(t);
630                                         initSnapping(t, NULL); // need to reinit after mode change
631                                         t->redraw |= TREDRAW_HARD;
632                                 }
633                                 break;
634                                 
635                         case TFM_MODAL_SNAP_INV_ON:
636                                 t->modifiers |= MOD_SNAP_INVERT;
637                                 t->redraw |= TREDRAW_HARD;
638                                 break;
639                         case TFM_MODAL_SNAP_INV_OFF:
640                                 t->modifiers &= ~MOD_SNAP_INVERT;
641                                 t->redraw |= TREDRAW_HARD;
642                                 break;
643                         case TFM_MODAL_SNAP_TOGGLE:
644                                 t->modifiers ^= MOD_SNAP;
645                                 t->redraw |= TREDRAW_HARD;
646                                 break;
647                         case TFM_MODAL_AXIS_X:
648                                 if ((t->flag & T_NO_CONSTRAINT)==0) {
649                                         if (cmode == 'X') {
650                                                 stopConstraint(t);
651                                         }
652                                         else {
653                                                 if (t->flag & T_2D_EDIT) {
654                                                         setUserConstraint(t, V3D_MANIP_GLOBAL, (CON_AXIS0), "along X");
655                                                 }
656                                                 else {
657                                                         setUserConstraint(t, t->current_orientation, (CON_AXIS0), "along %s X");
658                                                 }
659                                         }
660                                         t->redraw |= TREDRAW_HARD;
661                                 }
662                                 break;
663                         case TFM_MODAL_AXIS_Y:
664                                 if ((t->flag & T_NO_CONSTRAINT)==0) {
665                                         if (cmode == 'Y') {
666                                                 stopConstraint(t);
667                                         }
668                                         else {
669                                                 if (t->flag & T_2D_EDIT) {
670                                                         setUserConstraint(t, V3D_MANIP_GLOBAL, (CON_AXIS1), "along Y");
671                                                 }
672                                                 else {
673                                                         setUserConstraint(t, t->current_orientation, (CON_AXIS1), "along %s Y");
674                                                 }
675                                         }
676                                         t->redraw |= TREDRAW_HARD;
677                                 }
678                                 break;
679                         case TFM_MODAL_AXIS_Z:
680                                 if ((t->flag & (T_NO_CONSTRAINT|T_2D_EDIT))== 0) {
681                                         if (cmode == 'Z') {
682                                                 stopConstraint(t);
683                                         }
684                                         else {
685                                                 setUserConstraint(t, t->current_orientation, (CON_AXIS2), "along %s Z");
686                                         }
687                                         t->redraw |= TREDRAW_HARD;
688                                 }
689                                 break;
690                         case TFM_MODAL_PLANE_X:
691                                 if ((t->flag & (T_NO_CONSTRAINT|T_2D_EDIT))== 0) {
692                                         if (cmode == 'X') {
693                                                 stopConstraint(t);
694                                         }
695                                         else {
696                                                 setUserConstraint(t, t->current_orientation, (CON_AXIS1|CON_AXIS2), "locking %s X");
697                                         }
698                                         t->redraw |= TREDRAW_HARD;
699                                 }
700                                 break;
701                         case TFM_MODAL_PLANE_Y:
702                                 if ((t->flag & (T_NO_CONSTRAINT|T_2D_EDIT))== 0) {
703                                         if (cmode == 'Y') {
704                                                 stopConstraint(t);
705                                         }
706                                         else {
707                                                 setUserConstraint(t, t->current_orientation, (CON_AXIS0|CON_AXIS2), "locking %s Y");
708                                         }
709                                         t->redraw |= TREDRAW_HARD;
710                                 }
711                                 break;
712                         case TFM_MODAL_PLANE_Z:
713                                 if ((t->flag & (T_NO_CONSTRAINT|T_2D_EDIT))== 0) {
714                                         if (cmode == 'Z') {
715                                                 stopConstraint(t);
716                                         }
717                                         else {
718                                                 setUserConstraint(t, t->current_orientation, (CON_AXIS0|CON_AXIS1), "locking %s Z");
719                                         }
720                                         t->redraw |= TREDRAW_HARD;
721                                 }
722                                 break;
723                         case TFM_MODAL_CONS_OFF:
724                                 if ((t->flag & T_NO_CONSTRAINT)==0) {
725                                         stopConstraint(t);
726                                         t->redraw |= TREDRAW_HARD;
727                                 }
728                                 break;
729                         case TFM_MODAL_ADD_SNAP:
730                                 addSnapPoint(t);
731                                 t->redraw |= TREDRAW_HARD;
732                                 break;
733                         case TFM_MODAL_REMOVE_SNAP:
734                                 removeSnapPoint(t);
735                                 t->redraw |= TREDRAW_HARD;
736                                 break;
737                         case TFM_MODAL_PROPSIZE_UP:
738                                 if(t->flag & T_PROP_EDIT) {
739                                         t->prop_size*= 1.1f;
740                                         if(t->spacetype==SPACE_VIEW3D && t->persp != RV3D_ORTHO)
741                                                 t->prop_size= MIN2(t->prop_size, ((View3D *)t->view)->far);
742                                         calculatePropRatio(t);
743                                 }
744                                 t->redraw |= TREDRAW_HARD;
745                                 break;
746                         case TFM_MODAL_PROPSIZE_DOWN:
747                                 if (t->flag & T_PROP_EDIT) {
748                                         t->prop_size*= 0.90909090f;
749                                         calculatePropRatio(t);
750                                 }
751                                 t->redraw |= TREDRAW_HARD;
752                                 break;
753                         case TFM_MODAL_AUTOIK_LEN_INC:
754                                 if (t->flag & T_AUTOIK)
755                                         transform_autoik_update(t, 1);
756                                 t->redraw |= TREDRAW_HARD;
757                                 break;
758                         case TFM_MODAL_AUTOIK_LEN_DEC:
759                                 if (t->flag & T_AUTOIK) 
760                                         transform_autoik_update(t, -1);
761                                 t->redraw |= TREDRAW_HARD;
762                                 break;
763                         default:
764                                 handled = 0;
765                                 break;
766                 }
767
768                 // Modal numinput events
769                 t->redraw |= handleNumInput(&(t->num), event);
770         }
771         /* else do non-mapped events */
772         else if (event->val==KM_PRESS) {
773                 switch (event->type){
774                 case RIGHTMOUSE:
775                         t->state = TRANS_CANCEL;
776                         break;
777                 /* enforce redraw of transform when modifiers are used */
778                 case LEFTSHIFTKEY:
779                 case RIGHTSHIFTKEY:
780                         t->modifiers |= MOD_CONSTRAINT_PLANE;
781                         t->redraw |= TREDRAW_HARD;
782                         break;
783
784                 case SPACEKEY:
785                         if ((t->spacetype==SPACE_VIEW3D) && event->alt) {
786 #if 0 // TRANSFORM_FIX_ME
787                                 int mval[2];
788
789                                 getmouseco_sc(mval);
790                                 BIF_selectOrientation();
791                                 calc_manipulator_stats(curarea);
792                                 copy_m3_m4(t->spacemtx, G.vd->twmat);
793                                 warp_pointer(mval[0], mval[1]);
794 #endif
795                         }
796                         else {
797                                 t->state = TRANS_CONFIRM;
798                         }
799                         break;
800
801                 case MIDDLEMOUSE:
802                         if ((t->flag & T_NO_CONSTRAINT)==0) {
803                                 /* exception for switching to dolly, or trackball, in camera view */
804                                 if (t->flag & T_CAMERA) {
805                                         if (t->mode==TFM_TRANSLATION)
806                                                 setLocalConstraint(t, (CON_AXIS2), "along local Z");
807                                         else if (t->mode==TFM_ROTATION) {
808                                                 restoreTransObjects(t);
809                                                 initTrackball(t);
810                                         }
811                                 }
812                                 else {
813                                         t->modifiers |= MOD_CONSTRAINT_SELECT;
814                                         if (t->con.mode & CON_APPLY) {
815                                                 stopConstraint(t);
816                                         }
817                                         else {
818                                                 if (event->shift) {
819                                                         initSelectConstraint(t, t->spacemtx);
820                                                 }
821                                                 else {
822                                                         /* bit hackish... but it prevents mmb select to print the orientation from menu */
823                                                         strcpy(t->spacename, "global");
824                                                         initSelectConstraint(t, mati);
825                                                 }
826                                                 postSelectConstraint(t);
827                                         }
828                                 }
829                                 t->redraw |= TREDRAW_HARD;
830                         }
831                         break;
832                 case ESCKEY:
833                         t->state = TRANS_CANCEL;
834                         break;
835                 case PADENTER:
836                 case RETKEY:
837                         t->state = TRANS_CONFIRM;
838                         break;
839                 case GKEY:
840                         /* only switch when... */
841                         if( ELEM3(t->mode, TFM_ROTATION, TFM_RESIZE, TFM_TRACKBALL) ) {
842                                 resetTransRestrictions(t);
843                                 restoreTransObjects(t);
844                                 initTranslation(t);
845                                 initSnapping(t, NULL); // need to reinit after mode change
846                                 t->redraw |= TREDRAW_HARD;
847                         }
848                         break;
849                 case SKEY:
850                         /* only switch when... */
851                         if( ELEM3(t->mode, TFM_ROTATION, TFM_TRANSLATION, TFM_TRACKBALL) ) {
852                                 resetTransRestrictions(t);
853                                 restoreTransObjects(t);
854                                 initResize(t);
855                                 initSnapping(t, NULL); // need to reinit after mode change
856                                 t->redraw |= TREDRAW_HARD;
857                         }
858                         break;
859                 case RKEY:
860                         /* only switch when... */
861                         if(!(t->options & CTX_TEXTURE)) {
862                                 if( ELEM4(t->mode, TFM_ROTATION, TFM_RESIZE, TFM_TRACKBALL, TFM_TRANSLATION) ) {
863
864                                         resetTransRestrictions(t);
865
866                                         if (t->mode == TFM_ROTATION) {
867                                                 restoreTransObjects(t);
868                                                 initTrackball(t);
869                                         }
870                                         else {
871                                                 restoreTransObjects(t);
872                                                 initRotation(t);
873                                         }
874                                         initSnapping(t, NULL); // need to reinit after mode change
875                                         t->redraw |= TREDRAW_HARD;
876                                 }
877                         }
878                         break;
879                 case CKEY:
880                         if (event->alt) {
881                                 t->flag ^= T_PROP_CONNECTED;
882                                 sort_trans_data_dist(t);
883                                 calculatePropRatio(t);
884                                 t->redraw= 1;
885                         }
886                         else {
887                                 stopConstraint(t);
888                                 t->redraw |= TREDRAW_HARD;
889                         }
890                         break;
891                 case XKEY:
892                         if ((t->flag & T_NO_CONSTRAINT)==0) {
893                                 if (t->flag & T_2D_EDIT) {
894                                         if (cmode == 'X') {
895                                                 stopConstraint(t);
896                                         } else {
897                                                 setUserConstraint(t, V3D_MANIP_GLOBAL, (CON_AXIS0), "along X");
898                                         }
899                                 } else {
900                                         if (cmode == 'X') {
901                                                 if (t->con.orientation != V3D_MANIP_GLOBAL) {
902                                                         stopConstraint(t);
903                                                 } else {
904                                                         short orientation = t->current_orientation != V3D_MANIP_GLOBAL ? t->current_orientation : V3D_MANIP_LOCAL;
905                                                         if ((t->modifiers & MOD_CONSTRAINT_PLANE) == 0)
906                                                                 setUserConstraint(t, orientation, (CON_AXIS0), "along %s X");
907                                                         else if (t->modifiers & MOD_CONSTRAINT_PLANE)
908                                                                 setUserConstraint(t, orientation, (CON_AXIS1|CON_AXIS2), "locking %s X");
909                                                 }
910                                         } else {
911                                                 if ((t->modifiers & MOD_CONSTRAINT_PLANE) == 0)
912                                                         setUserConstraint(t, V3D_MANIP_GLOBAL, (CON_AXIS0), "along %s X");
913                                                 else if (t->modifiers & MOD_CONSTRAINT_PLANE)
914                                                         setUserConstraint(t, V3D_MANIP_GLOBAL, (CON_AXIS1|CON_AXIS2), "locking %s X");
915                                         }
916                                 }
917                                 t->redraw |= TREDRAW_HARD;
918                         }
919                         break;
920                 case YKEY:
921                         if ((t->flag & T_NO_CONSTRAINT)==0) {
922                                 if (t->flag & T_2D_EDIT) {
923                                         if (cmode == 'Y') {
924                                                 stopConstraint(t);
925                                         } else {
926                                                 setUserConstraint(t, V3D_MANIP_GLOBAL, (CON_AXIS1), "along Y");
927                                         }
928                                 } else {
929                                         if (cmode == 'Y') {
930                                                 if (t->con.orientation != V3D_MANIP_GLOBAL) {
931                                                         stopConstraint(t);
932                                                 } else {
933                                                         short orientation = t->current_orientation != V3D_MANIP_GLOBAL ? t->current_orientation : V3D_MANIP_LOCAL;
934                                                         if ((t->modifiers & MOD_CONSTRAINT_PLANE) == 0)
935                                                                 setUserConstraint(t, orientation, (CON_AXIS1), "along %s Y");
936                                                         else if (t->modifiers & MOD_CONSTRAINT_PLANE)
937                                                                 setUserConstraint(t, orientation, (CON_AXIS0|CON_AXIS2), "locking %s Y");
938                                                 }
939                                         } else {
940                                                 if ((t->modifiers & MOD_CONSTRAINT_PLANE) == 0)
941                                                         setUserConstraint(t, V3D_MANIP_GLOBAL, (CON_AXIS1), "along %s Y");
942                                                 else if (t->modifiers & MOD_CONSTRAINT_PLANE)
943                                                         setUserConstraint(t, V3D_MANIP_GLOBAL, (CON_AXIS0|CON_AXIS2), "locking %s Y");
944                                         }
945                                 }
946                                 t->redraw |= TREDRAW_HARD;
947                         }
948                         break;
949                 case ZKEY:
950                         if ((t->flag & (T_NO_CONSTRAINT|T_2D_EDIT))==0) {
951                                 if (cmode == 'Z') {
952                                         if (t->con.orientation != V3D_MANIP_GLOBAL) {
953                                                 stopConstraint(t);
954                                         } else {
955                                                 short orientation = t->current_orientation != V3D_MANIP_GLOBAL ? t->current_orientation : V3D_MANIP_LOCAL;
956                                                 if ((t->modifiers & MOD_CONSTRAINT_PLANE) == 0)
957                                                         setUserConstraint(t, orientation, (CON_AXIS2), "along %s Z");
958                                                 else if (t->modifiers & MOD_CONSTRAINT_PLANE)
959                                                         setUserConstraint(t, orientation, (CON_AXIS0|CON_AXIS1), "locking %s Z");
960                                         }
961                                 } else {
962                                         if ((t->modifiers & MOD_CONSTRAINT_PLANE) == 0)
963                                                 setUserConstraint(t, V3D_MANIP_GLOBAL, (CON_AXIS2), "along %s Z");
964                                         else if (t->modifiers & MOD_CONSTRAINT_PLANE)
965                                                 setUserConstraint(t, V3D_MANIP_GLOBAL, (CON_AXIS0|CON_AXIS1), "locking %s Z");
966                                 }
967                                 t->redraw |= TREDRAW_HARD;
968                         }
969                         break;
970                 case OKEY:
971                         if (t->flag & T_PROP_EDIT && event->shift) {
972                                 t->prop_mode = (t->prop_mode + 1) % PROP_MODE_MAX;
973                                 calculatePropRatio(t);
974                                 t->redraw |= TREDRAW_HARD;
975                         }
976                         break;
977                 case PADPLUSKEY:
978                         if(event->alt && t->flag & T_PROP_EDIT) {
979                                 t->prop_size *= 1.1f;
980                                 if(t->spacetype==SPACE_VIEW3D && t->persp != RV3D_ORTHO)
981                                         t->prop_size= MIN2(t->prop_size, ((View3D *)t->view)->far);
982                                 calculatePropRatio(t);
983                         }
984                         t->redraw= 1;
985                         break;
986                 case PAGEUPKEY:
987                 case WHEELDOWNMOUSE:
988                         if (t->flag & T_AUTOIK) {
989                                 transform_autoik_update(t, 1);
990                         }
991                         else view_editmove(event->type);
992                         t->redraw= 1;
993                         break;
994                 case PADMINUS:
995                         if(event->alt && t->flag & T_PROP_EDIT) {
996                                 t->prop_size*= 0.90909090f;
997                                 calculatePropRatio(t);
998                         }
999                         t->redraw= 1;
1000                         break;
1001                 case PAGEDOWNKEY:
1002                 case WHEELUPMOUSE:
1003                         if (t->flag & T_AUTOIK) {
1004                                 transform_autoik_update(t, -1);
1005                         }
1006                         else view_editmove(event->type);
1007                         t->redraw= 1;
1008                         break;
1009 #if 0
1010                 case NDOF_MOTION:
1011                         // should have been caught by tranform_modal
1012                         return OPERATOR_PASS_THROUGH;
1013 #endif
1014                 default:
1015                         handled = 0;
1016                         break;
1017                 }
1018
1019                 // Numerical input events
1020                 t->redraw |= handleNumInput(&(t->num), event);
1021
1022                 // Snapping events
1023                 t->redraw |= handleSnapping(t, event);
1024
1025         }
1026         else if (event->val==KM_RELEASE) {
1027                 switch (event->type){
1028                 case LEFTSHIFTKEY:
1029                 case RIGHTSHIFTKEY:
1030                         t->modifiers &= ~MOD_CONSTRAINT_PLANE;
1031                         t->redraw |= TREDRAW_HARD;
1032                         break;
1033
1034                 case MIDDLEMOUSE:
1035                         if ((t->flag & T_NO_CONSTRAINT)==0) {
1036                                 t->modifiers &= ~MOD_CONSTRAINT_SELECT;
1037                                 postSelectConstraint(t);
1038                                 t->redraw |= TREDRAW_HARD;
1039                         }
1040                         break;
1041 //              case LEFTMOUSE:
1042 //              case RIGHTMOUSE:
1043 //                      if(WM_modal_tweak_exit(event, t->event_type))
1044 ////                    if (t->options & CTX_TWEAK)
1045 //                              t->state = TRANS_CONFIRM;
1046 //                      break;
1047                 default:
1048                         handled = 0;
1049                         break;
1050                 }
1051
1052                 /* confirm transform if launch key is released after mouse move */
1053                 if (t->flag & T_RELEASE_CONFIRM)
1054                 {
1055                         /* XXX Keyrepeat bug in Xorg fucks this up, will test when fixed */
1056                         if (event->type == t->launch_event && (t->launch_event == LEFTMOUSE || t->launch_event == RIGHTMOUSE))
1057                         {
1058                                 t->state = TRANS_CONFIRM;
1059                         }
1060                 }
1061         }
1062
1063         // Per transform event, if present
1064         if (t->handleEvent)
1065                 t->redraw |= t->handleEvent(t, event);
1066
1067         if (handled || t->redraw)
1068                 return 0;
1069         else
1070                 return OPERATOR_PASS_THROUGH;
1071 }
1072
1073 int calculateTransformCenter(bContext *C, int centerMode, float *vec)
1074 {
1075         TransInfo *t = MEM_callocN(sizeof(TransInfo), "TransInfo data");
1076         int success = 1;
1077
1078         t->state = TRANS_RUNNING;
1079
1080         t->options = CTX_NONE;
1081
1082         t->mode = TFM_DUMMY;
1083
1084         initTransInfo(C, t, NULL, NULL);        // internal data, mouse, vectors
1085
1086         createTransData(C, t);                          // make TransData structs from selection
1087
1088         t->around = centerMode;                         // override userdefined mode
1089
1090         if (t->total == 0) {
1091                 success = 0;
1092         }
1093         else {
1094                 success = 1;
1095
1096                 calculateCenter(t);
1097
1098                 // Copy center from constraint center. Transform center can be local
1099                 VECCOPY(vec, t->con.center);
1100         }
1101
1102
1103         /* aftertrans does insert ipos and action channels, and clears base flags, doesnt read transdata */
1104         special_aftertrans_update(C, t);
1105
1106         postTrans(C, t);
1107
1108         MEM_freeN(t);
1109
1110         return success;
1111 }
1112
1113 typedef enum {
1114         UP,
1115         DOWN,
1116         LEFT,
1117         RIGHT
1118 } ArrowDirection;
1119 static void drawArrow(ArrowDirection d, short offset, short length, short size)
1120 {
1121         switch(d)
1122         {
1123                 case LEFT:
1124                         offset = -offset;
1125                         length = -length;
1126                         size = -size;
1127                 case RIGHT:
1128                         glBegin(GL_LINES);
1129                         glVertex2s( offset, 0);
1130                         glVertex2s( offset + length, 0);
1131                         glVertex2s( offset + length, 0);
1132                         glVertex2s( offset + length - size, -size);
1133                         glVertex2s( offset + length, 0);
1134                         glVertex2s( offset + length - size,  size);
1135                         glEnd();
1136                         break;
1137                 case DOWN:
1138                         offset = -offset;
1139                         length = -length;
1140                         size = -size;
1141                 case UP:
1142                         glBegin(GL_LINES);
1143                         glVertex2s( 0, offset);
1144                         glVertex2s( 0, offset + length);
1145                         glVertex2s( 0, offset + length);
1146                         glVertex2s(-size, offset + length - size);
1147                         glVertex2s( 0, offset + length);
1148                         glVertex2s( size, offset + length - size);
1149                         glEnd();
1150                         break;
1151         }
1152 }
1153
1154 static void drawArrowHead(ArrowDirection d, short size)
1155 {
1156         switch(d)
1157         {
1158                 case LEFT:
1159                         size = -size;
1160                 case RIGHT:
1161                         glBegin(GL_LINES);
1162                         glVertex2s( 0, 0);
1163                         glVertex2s( -size, -size);
1164                         glVertex2s( 0, 0);
1165                         glVertex2s( -size,  size);
1166                         glEnd();
1167                         break;
1168                 case DOWN:
1169                         size = -size;
1170                 case UP:
1171                         glBegin(GL_LINES);
1172                         glVertex2s( 0, 0);
1173                         glVertex2s(-size, -size);
1174                         glVertex2s( 0, 0);
1175                         glVertex2s( size, -size);
1176                         glEnd();
1177                         break;
1178         }
1179 }
1180
1181 static void drawArc(float size, float angle_start, float angle_end, int segments)
1182 {
1183         float delta = (angle_end - angle_start) / segments;
1184         float angle;
1185
1186         glBegin(GL_LINE_STRIP);
1187
1188         for( angle = angle_start; angle < angle_end; angle += delta)
1189         {
1190                 glVertex2f( cosf(angle) * size, sinf(angle) * size);
1191         }
1192         glVertex2f( cosf(angle_end) * size, sinf(angle_end) * size);
1193
1194         glEnd();
1195 }
1196
1197 static int helpline_poll(bContext *C)
1198 {
1199         ARegion *ar= CTX_wm_region(C);
1200         
1201         if(ar && ar->regiontype==RGN_TYPE_WINDOW)
1202                 return 1;
1203         return 0;
1204 }
1205
1206 static void drawHelpline(bContext *UNUSED(C), int x, int y, void *customdata)
1207 {
1208         TransInfo *t = (TransInfo*)customdata;
1209
1210         if (t->helpline != HLP_NONE && !(t->flag & T_USES_MANIPULATOR))
1211         {
1212                 float vecrot[3], cent[2];
1213                 int mval[2];
1214
1215                 mval[0]= x;
1216                 mval[1]= y;
1217
1218                 VECCOPY(vecrot, t->center);
1219                 if(t->flag & T_EDIT) {
1220                         Object *ob= t->obedit;
1221                         if(ob) mul_m4_v3(ob->obmat, vecrot);
1222                 }
1223                 else if(t->flag & T_POSE) {
1224                         Object *ob=t->poseobj;
1225                         if(ob) mul_m4_v3(ob->obmat, vecrot);
1226                 }
1227
1228                 projectFloatView(t, vecrot, cent);      // no overflow in extreme cases
1229
1230                 glPushMatrix();
1231
1232                 switch(t->helpline)
1233                 {
1234                         case HLP_SPRING:
1235                                 UI_ThemeColor(TH_WIRE);
1236
1237                                 setlinestyle(3);
1238                                 glBegin(GL_LINE_STRIP);
1239                                 glVertex2iv(t->mval);
1240                                 glVertex2fv(cent);
1241                                 glEnd();
1242
1243                                 glTranslatef(mval[0], mval[1], 0);
1244                                 glRotatef(-RAD2DEGF(atan2f(cent[0] - t->mval[0], cent[1] - t->mval[1])), 0, 0, 1);
1245
1246                                 setlinestyle(0);
1247                                 glLineWidth(3.0);
1248                                 drawArrow(UP, 5, 10, 5);
1249                                 drawArrow(DOWN, 5, 10, 5);
1250                                 glLineWidth(1.0);
1251                                 break;
1252                         case HLP_HARROW:
1253                                 UI_ThemeColor(TH_WIRE);
1254
1255                                 glTranslatef(mval[0], mval[1], 0);
1256
1257                                 glLineWidth(3.0);
1258                                 drawArrow(RIGHT, 5, 10, 5);
1259                                 drawArrow(LEFT, 5, 10, 5);
1260                                 glLineWidth(1.0);
1261                                 break;
1262                         case HLP_VARROW:
1263                                 UI_ThemeColor(TH_WIRE);
1264
1265                                 glTranslatef(mval[0], mval[1], 0);
1266
1267                                 glLineWidth(3.0);
1268                                 glBegin(GL_LINES);
1269                                 drawArrow(UP, 5, 10, 5);
1270                                 drawArrow(DOWN, 5, 10, 5);
1271                                 glLineWidth(1.0);
1272                                 break;
1273                         case HLP_ANGLE:
1274                                 {
1275                                         float dx = t->mval[0] - cent[0], dy = t->mval[1] - cent[1];
1276                                         float angle = atan2f(dy, dx);
1277                                         float dist = sqrtf(dx*dx + dy*dy);
1278                                         float delta_angle = MIN2(15.0f / dist, (float)M_PI/4.0f);
1279                                         float spacing_angle = MIN2(5.0f / dist, (float)M_PI/12.0f);
1280                                         UI_ThemeColor(TH_WIRE);
1281
1282                                         setlinestyle(3);
1283                                         glBegin(GL_LINE_STRIP);
1284                                         glVertex2iv(t->mval);
1285                                         glVertex2fv(cent);
1286                                         glEnd();
1287
1288                                         glTranslatef(cent[0] - t->mval[0] + mval[0], cent[1] - t->mval[1] + mval[1], 0);
1289
1290                                         setlinestyle(0);
1291                                         glLineWidth(3.0);
1292                                         drawArc(dist, angle - delta_angle, angle - spacing_angle, 10);
1293                                         drawArc(dist, angle + spacing_angle, angle + delta_angle, 10);
1294
1295                                         glPushMatrix();
1296
1297                                         glTranslatef(cosf(angle - delta_angle) * dist, sinf(angle - delta_angle) * dist, 0);
1298                                         glRotatef(RAD2DEGF(angle - delta_angle), 0, 0, 1);
1299
1300                                         drawArrowHead(DOWN, 5);
1301
1302                                         glPopMatrix();
1303
1304                                         glTranslatef(cosf(angle + delta_angle) * dist, sinf(angle + delta_angle) * dist, 0);
1305                                         glRotatef(RAD2DEGF(angle + delta_angle), 0, 0, 1);
1306
1307                                         drawArrowHead(UP, 5);
1308
1309                                         glLineWidth(1.0);
1310                                         break;
1311                                 }
1312                                 case HLP_TRACKBALL:
1313                                 {
1314                                         unsigned char col[3], col2[3];
1315                                         UI_GetThemeColor3ubv(TH_GRID, col);
1316
1317                                         glTranslatef(mval[0], mval[1], 0);
1318
1319                                         glLineWidth(3.0);
1320
1321                                         UI_make_axis_color(col, col2, 'X');
1322                                         glColor3ubv((GLubyte *)col2);
1323
1324                                         drawArrow(RIGHT, 5, 10, 5);
1325                                         drawArrow(LEFT, 5, 10, 5);
1326
1327                                         UI_make_axis_color(col, col2, 'Y');
1328                                         glColor3ubv((GLubyte *)col2);
1329
1330                                         drawArrow(UP, 5, 10, 5);
1331                                         drawArrow(DOWN, 5, 10, 5);
1332                                         glLineWidth(1.0);
1333                                         break;
1334                                 }
1335                 }
1336
1337                 glPopMatrix();
1338         }
1339 }
1340
1341 static void drawTransformView(const struct bContext *C, struct ARegion *UNUSED(ar), void *arg)
1342 {
1343         TransInfo *t = arg;
1344
1345         drawConstraint(t);
1346         drawPropCircle(C, t);
1347         drawSnapping(C, t);
1348 }
1349
1350 #if 0
1351 static void drawTransformPixel(const struct bContext *UNUSED(C), struct ARegion *UNUSED(ar), void *UNUSED(arg))
1352 {
1353 //      TransInfo *t = arg;
1354 //
1355 //      drawHelpline(C, t->mval[0], t->mval[1], t);
1356 }
1357 #endif
1358
1359 void saveTransform(bContext *C, TransInfo *t, wmOperator *op)
1360 {
1361         ToolSettings *ts = CTX_data_tool_settings(C);
1362         int constraint_axis[3] = {0, 0, 0};
1363         int proportional = 0;
1364
1365         if (RNA_struct_find_property(op->ptr, "value"))
1366         {
1367                 if (t->flag & T_AUTOVALUES)
1368                 {
1369                         RNA_float_set_array(op->ptr, "value", t->auto_values);
1370                 }
1371                 else
1372                 {
1373                         RNA_float_set_array(op->ptr, "value", t->values);
1374                 }
1375         }
1376
1377         /* convert flag to enum */
1378         switch(t->flag & (T_PROP_EDIT|T_PROP_CONNECTED))
1379         {
1380         case (T_PROP_EDIT|T_PROP_CONNECTED):
1381                 proportional = PROP_EDIT_CONNECTED;
1382                 break;
1383         case T_PROP_EDIT:
1384                 proportional = PROP_EDIT_ON;
1385                 break;
1386         default:
1387                 proportional = PROP_EDIT_OFF;
1388         }
1389
1390         // If modal, save settings back in scene if not set as operator argument
1391         if (t->flag & T_MODAL) {
1392
1393                 /* save settings if not set in operator */
1394                 if (RNA_struct_find_property(op->ptr, "proportional") && !RNA_property_is_set(op->ptr, "proportional")) {
1395                         if (t->obedit)
1396                                 ts->proportional = proportional;
1397                         else
1398                                 ts->proportional_objects = (proportional != PROP_EDIT_OFF);
1399                 }
1400
1401                 if (RNA_struct_find_property(op->ptr, "proportional_size") && !RNA_property_is_set(op->ptr, "proportional_size")) {
1402                         ts->proportional_size = t->prop_size;
1403                 }
1404                         
1405                 if (RNA_struct_find_property(op->ptr, "proportional_edit_falloff") && !RNA_property_is_set(op->ptr, "proportional_edit_falloff")) {
1406                         ts->prop_mode = t->prop_mode;
1407                 }
1408                 
1409                 /* do we check for parameter? */
1410                 if (t->modifiers & MOD_SNAP) {
1411                         ts->snap_flag |= SCE_SNAP;
1412                 } else {
1413                         ts->snap_flag &= ~SCE_SNAP;
1414                 }
1415
1416                 if(t->spacetype == SPACE_VIEW3D) {
1417                         if (RNA_struct_find_property(op->ptr, "constraint_orientation") && !RNA_property_is_set(op->ptr, "constraint_orientation")) {
1418                                 View3D *v3d = t->view;
1419         
1420                                 v3d->twmode = t->current_orientation;
1421                         }
1422                 }
1423         }
1424         
1425         if (RNA_struct_find_property(op->ptr, "proportional"))
1426         {
1427                 RNA_enum_set(op->ptr, "proportional", proportional);
1428                 RNA_enum_set(op->ptr, "proportional_edit_falloff", t->prop_mode);
1429                 RNA_float_set(op->ptr, "proportional_size", t->prop_size);
1430         }
1431
1432         if (RNA_struct_find_property(op->ptr, "axis"))
1433         {
1434                 RNA_float_set_array(op->ptr, "axis", t->axis);
1435         }
1436
1437         if (RNA_struct_find_property(op->ptr, "mirror"))
1438         {
1439                 RNA_boolean_set(op->ptr, "mirror", t->flag & T_MIRROR);
1440         }
1441
1442         if (RNA_struct_find_property(op->ptr, "constraint_axis"))
1443         {
1444                 /* constraint orientation can be global, event if user selects something else
1445                  * so use the orientation in the constraint if set
1446                  * */
1447                 if (t->con.mode & CON_APPLY) {
1448                         RNA_enum_set(op->ptr, "constraint_orientation", t->con.orientation);
1449                 } else {
1450                         RNA_enum_set(op->ptr, "constraint_orientation", t->current_orientation);
1451                 }
1452
1453                 if (t->con.mode & CON_APPLY)
1454                 {
1455                         if (t->con.mode & CON_AXIS0) {
1456                                 constraint_axis[0] = 1;
1457                         }
1458                         if (t->con.mode & CON_AXIS1) {
1459                                 constraint_axis[1] = 1;
1460                         }
1461                         if (t->con.mode & CON_AXIS2) {
1462                                 constraint_axis[2] = 1;
1463                         }
1464                 }
1465
1466                 RNA_boolean_set_array(op->ptr, "constraint_axis", constraint_axis);
1467         }
1468 }
1469
1470 /* note: caller needs to free 't' on a 0 return */
1471 int initTransform(bContext *C, TransInfo *t, wmOperator *op, wmEvent *event, int mode)
1472 {
1473         int options = 0;
1474
1475         t->context = C;
1476
1477         /* added initialize, for external calls to set stuff in TransInfo, like undo string */
1478
1479         t->state = TRANS_STARTING;
1480
1481         if(RNA_struct_find_property(op->ptr, "texture_space"))
1482                 if(RNA_boolean_get(op->ptr, "texture_space"))
1483                         options |= CTX_TEXTURE;
1484         
1485         t->options = options;
1486
1487         t->mode = mode;
1488
1489         t->launch_event = event ? event->type : -1;
1490
1491         if (t->launch_event == EVT_TWEAK_R)
1492         {
1493                 t->launch_event = RIGHTMOUSE;
1494         }
1495         else if (t->launch_event == EVT_TWEAK_L)
1496         {
1497                 t->launch_event = LEFTMOUSE;
1498         }
1499
1500         // XXX Remove this when wm_operator_call_internal doesn't use window->eventstate (which can have type = 0)
1501         // For manipulator only, so assume LEFTMOUSE
1502         if (t->launch_event == 0)
1503         {
1504                 t->launch_event = LEFTMOUSE;
1505         }
1506
1507         if (!initTransInfo(C, t, op, event))                                    // internal data, mouse, vectors
1508         {
1509                 return 0;
1510         }
1511
1512         if(t->spacetype == SPACE_VIEW3D)
1513         {
1514                 //calc_manipulator_stats(curarea);
1515                 initTransformOrientation(C, t);
1516
1517                 t->draw_handle_apply = ED_region_draw_cb_activate(t->ar->type, drawTransformApply, t, REGION_DRAW_PRE_VIEW);
1518                 t->draw_handle_view = ED_region_draw_cb_activate(t->ar->type, drawTransformView, t, REGION_DRAW_POST_VIEW);
1519                 //t->draw_handle_pixel = ED_region_draw_cb_activate(t->ar->type, drawTransformPixel, t, REGION_DRAW_POST_PIXEL);
1520                 t->draw_handle_cursor = WM_paint_cursor_activate(CTX_wm_manager(C), helpline_poll, drawHelpline, t);
1521         }
1522         else if(t->spacetype == SPACE_IMAGE) {
1523                 unit_m3(t->spacemtx);
1524                 t->draw_handle_view = ED_region_draw_cb_activate(t->ar->type, drawTransformView, t, REGION_DRAW_POST_VIEW);
1525                 //t->draw_handle_pixel = ED_region_draw_cb_activate(t->ar->type, drawTransformPixel, t, REGION_DRAW_POST_PIXEL);
1526         }
1527         else
1528                 unit_m3(t->spacemtx);
1529
1530         createTransData(C, t);                  // make TransData structs from selection
1531
1532         if (t->total == 0) {
1533                 postTrans(C, t);
1534                 return 0;
1535         }
1536
1537         /* Stupid code to have Ctrl-Click on manipulator work ok */
1538         if(event)
1539         {
1540                 wmKeyMap *keymap = WM_keymap_active(CTX_wm_manager(C), op->type->modalkeymap);
1541                 wmKeyMapItem *kmi;
1542
1543                 for (kmi = keymap->items.first; kmi; kmi = kmi->next)
1544                 {
1545                         if (kmi->propvalue == TFM_MODAL_SNAP_INV_ON && kmi->val == KM_PRESS)
1546                         {
1547                                 if ((ELEM(kmi->type, LEFTCTRLKEY, RIGHTCTRLKEY) && event->ctrl) ||
1548                                         (ELEM(kmi->type, LEFTSHIFTKEY, RIGHTSHIFTKEY) && event->shift) ||
1549                                         (ELEM(kmi->type, LEFTALTKEY, RIGHTALTKEY) && event->alt) ||
1550                                         (kmi->type == OSKEY && event->oskey)) {
1551                                         t->modifiers |= MOD_SNAP_INVERT;
1552                                 }
1553                                 break;
1554                         }
1555                 }
1556
1557         }
1558
1559         initSnapping(t, op); // Initialize snapping data AFTER mode flags
1560
1561         /* EVIL! posemode code can switch translation to rotate when 1 bone is selected. will be removed (ton) */
1562         /* EVIL2: we gave as argument also texture space context bit... was cleared */
1563         /* EVIL3: extend mode for animation editors also switches modes... but is best way to avoid duplicate code */
1564         mode = t->mode;
1565
1566         calculatePropRatio(t);
1567         calculateCenter(t);
1568
1569         initMouseInput(t, &t->mouse, t->center2d, t->imval);
1570
1571         switch (mode) {
1572         case TFM_TRANSLATION:
1573                 initTranslation(t);
1574                 break;
1575         case TFM_ROTATION:
1576                 initRotation(t);
1577                 break;
1578         case TFM_RESIZE:
1579                 initResize(t);
1580                 break;
1581         case TFM_TOSPHERE:
1582                 initToSphere(t);
1583                 break;
1584         case TFM_SHEAR:
1585                 initShear(t);
1586                 break;
1587         case TFM_WARP:
1588                 initWarp(t);
1589                 break;
1590         case TFM_SHRINKFATTEN:
1591                 initShrinkFatten(t);
1592                 break;
1593         case TFM_TILT:
1594                 initTilt(t);
1595                 break;
1596         case TFM_CURVE_SHRINKFATTEN:
1597                 initCurveShrinkFatten(t);
1598                 break;
1599         case TFM_TRACKBALL:
1600                 initTrackball(t);
1601                 break;
1602         case TFM_PUSHPULL:
1603                 initPushPull(t);
1604                 break;
1605         case TFM_CREASE:
1606                 initCrease(t);
1607                 break;
1608         case TFM_BONESIZE:
1609                 {       /* used for both B-Bone width (bonesize) as for deform-dist (envelope) */
1610                         bArmature *arm= t->poseobj->data;
1611                         if(arm->drawtype==ARM_ENVELOPE)
1612                                 initBoneEnvelope(t);
1613                         else
1614                                 initBoneSize(t);
1615                 }
1616                 break;
1617         case TFM_BONE_ENVELOPE:
1618                 initBoneEnvelope(t);
1619                 break;
1620         case TFM_EDGE_SLIDE:
1621                 initEdgeSlide(t);
1622                 break;
1623         case TFM_BONE_ROLL:
1624                 initBoneRoll(t);
1625                 break;
1626         case TFM_TIME_TRANSLATE:
1627                 initTimeTranslate(t);
1628                 break;
1629         case TFM_TIME_SLIDE:
1630                 initTimeSlide(t);
1631                 break;
1632         case TFM_TIME_SCALE:
1633                 initTimeScale(t);
1634                 break;
1635         case TFM_TIME_DUPLICATE:
1636                 /* same as TFM_TIME_EXTEND, but we need the mode info for later 
1637                  * so that duplicate-culling will work properly
1638                  */
1639                 if ELEM(t->spacetype, SPACE_IPO, SPACE_NLA)
1640                         initTranslation(t);
1641                 else
1642                         initTimeTranslate(t);
1643                 t->mode = mode;
1644                 break;
1645         case TFM_TIME_EXTEND:
1646                 /* now that transdata has been made, do like for TFM_TIME_TRANSLATE (for most Animation
1647                  * Editors because they have only 1D transforms for time values) or TFM_TRANSLATION
1648                  * (for Graph/NLA Editors only since they uses 'standard' transforms to get 2D movement)
1649                  * depending on which editor this was called from
1650                  */
1651                 if ELEM(t->spacetype, SPACE_IPO, SPACE_NLA)
1652                         initTranslation(t);
1653                 else
1654                         initTimeTranslate(t);
1655                 break;
1656         case TFM_BAKE_TIME:
1657                 initBakeTime(t);
1658                 break;
1659         case TFM_MIRROR:
1660                 initMirror(t);
1661                 break;
1662         case TFM_BEVEL:
1663                 initBevel(t);
1664                 break;
1665         case TFM_BWEIGHT:
1666                 initBevelWeight(t);
1667                 break;
1668         case TFM_ALIGN:
1669                 initAlign(t);
1670                 break;
1671         case TFM_SEQ_SLIDE:
1672                 initSeqSlide(t);
1673                 break;
1674         }
1675
1676         if(t->state == TRANS_CANCEL)
1677         {
1678                 postTrans(C, t);
1679                 return 0;
1680         }
1681
1682
1683         /* overwrite initial values if operator supplied a non-null vector */
1684         if (RNA_property_is_set(op->ptr, "value"))
1685         {
1686                 float values[4]= {0}; /* incase value isn't length 4, avoid uninitialized memory  */
1687                 RNA_float_get_array(op->ptr, "value", values);
1688                 QUATCOPY(t->values, values);
1689                 QUATCOPY(t->auto_values, values);
1690                 t->flag |= T_AUTOVALUES;
1691         }
1692
1693         /* Transformation axis from operator */
1694         if (RNA_struct_find_property(op->ptr, "axis") && RNA_property_is_set(op->ptr, "axis"))
1695         {
1696                 RNA_float_get_array(op->ptr, "axis", t->axis);
1697                 normalize_v3(t->axis);
1698                 copy_v3_v3(t->axis_orig, t->axis);
1699         }
1700
1701         /* Constraint init from operator */
1702         if (RNA_struct_find_property(op->ptr, "constraint_axis") && RNA_property_is_set(op->ptr, "constraint_axis"))
1703         {
1704                 int constraint_axis[3];
1705
1706                 RNA_boolean_get_array(op->ptr, "constraint_axis", constraint_axis);
1707
1708                 if (constraint_axis[0] || constraint_axis[1] || constraint_axis[2])
1709                 {
1710                         t->con.mode |= CON_APPLY;
1711
1712                         if (constraint_axis[0]) {
1713                                 t->con.mode |= CON_AXIS0;
1714                         }
1715                         if (constraint_axis[1]) {
1716                                 t->con.mode |= CON_AXIS1;
1717                         }
1718                         if (constraint_axis[2]) {
1719                                 t->con.mode |= CON_AXIS2;
1720                         }
1721
1722                         setUserConstraint(t, t->current_orientation, t->con.mode, "%s");
1723                 }
1724         }
1725
1726         t->context = NULL;
1727
1728         return 1;
1729 }
1730
1731 void transformApply(bContext *C, TransInfo *t)
1732 {
1733         t->context = C;
1734
1735         if ((t->redraw & TREDRAW_HARD) || (t->draw_handle_apply == NULL && (t->redraw & TREDRAW_SOFT)))
1736         {
1737                 selectConstraint(t);
1738                 if (t->transform) {
1739                         t->transform(t, t->mval);  // calls recalcData()
1740                         viewRedrawForce(C, t);
1741                 }
1742                 t->redraw = TREDRAW_NOTHING;
1743         } else if (t->redraw & TREDRAW_SOFT) {
1744                 viewRedrawForce(C, t);
1745         }
1746
1747         /* If auto confirm is on, break after one pass */
1748         if (t->options & CTX_AUTOCONFIRM)
1749         {
1750                 t->state = TRANS_CONFIRM;
1751         }
1752
1753         if (BKE_ptcache_get_continue_physics())
1754         {
1755                 // TRANSFORM_FIX_ME
1756                 //do_screenhandlers(G.curscreen);
1757                 t->redraw |= TREDRAW_HARD;
1758         }
1759
1760         t->context = NULL;
1761 }
1762
1763 void drawTransformApply(const bContext *C, struct ARegion *UNUSED(ar), void *arg)
1764 {
1765         TransInfo *t = arg;
1766
1767         if (t->redraw & TREDRAW_SOFT) {
1768                 t->redraw |= TREDRAW_HARD;
1769                 transformApply((bContext *)C, t);
1770         }
1771 }
1772
1773 int transformEnd(bContext *C, TransInfo *t)
1774 {
1775         int exit_code = OPERATOR_RUNNING_MODAL;
1776
1777         t->context = C;
1778
1779         if (t->state != TRANS_STARTING && t->state != TRANS_RUNNING)
1780         {
1781                 /* handle restoring objects */
1782                 if(t->state == TRANS_CANCEL)
1783                 {
1784                         /* exception, edge slide transformed UVs too */
1785                         if(t->mode==TFM_EDGE_SLIDE)
1786                                 doEdgeSlide(t, 0.0f);
1787                         
1788                         exit_code = OPERATOR_CANCELLED;
1789                         restoreTransObjects(t); // calls recalcData()
1790                 }
1791                 else
1792                 {
1793                         exit_code = OPERATOR_FINISHED;
1794                 }
1795
1796                 /* aftertrans does insert keyframes, and clears base flags, doesnt read transdata */
1797                 special_aftertrans_update(C, t);
1798
1799                 /* free data */
1800                 postTrans(C, t);
1801
1802                 /* send events out for redraws */
1803                 viewRedrawPost(C, t);
1804
1805                 /*  Undo as last, certainly after special_trans_update! */
1806
1807                 if(t->state == TRANS_CANCEL) {
1808 //                      if(t->undostr) ED_undo_push(C, t->undostr);
1809                 }
1810                 else {
1811 //                      if(t->undostr) ED_undo_push(C, t->undostr);
1812 //                      else ED_undo_push(C, transform_to_undostr(t));
1813                 }
1814                 t->undostr= NULL;
1815
1816                 viewRedrawForce(C, t);
1817         }
1818
1819         t->context = NULL;
1820
1821         return exit_code;
1822 }
1823
1824 /* ************************** TRANSFORM LOCKS **************************** */
1825
1826 static void protectedTransBits(short protectflag, float *vec)
1827 {
1828         if(protectflag & OB_LOCK_LOCX)
1829                 vec[0]= 0.0f;
1830         if(protectflag & OB_LOCK_LOCY)
1831                 vec[1]= 0.0f;
1832         if(protectflag & OB_LOCK_LOCZ)
1833                 vec[2]= 0.0f;
1834 }
1835
1836 static void protectedSizeBits(short protectflag, float *size)
1837 {
1838         if(protectflag & OB_LOCK_SCALEX)
1839                 size[0]= 1.0f;
1840         if(protectflag & OB_LOCK_SCALEY)
1841                 size[1]= 1.0f;
1842         if(protectflag & OB_LOCK_SCALEZ)
1843                 size[2]= 1.0f;
1844 }
1845
1846 static void protectedRotateBits(short protectflag, float *eul, float *oldeul)
1847 {
1848         if(protectflag & OB_LOCK_ROTX)
1849                 eul[0]= oldeul[0];
1850         if(protectflag & OB_LOCK_ROTY)
1851                 eul[1]= oldeul[1];
1852         if(protectflag & OB_LOCK_ROTZ)
1853                 eul[2]= oldeul[2];
1854 }
1855
1856
1857 /* this function only does the delta rotation */
1858 /* axis-angle is usually internally stored as quats... */
1859 static void protectedAxisAngleBits(short protectflag, float axis[3], float *angle, float oldAxis[3], float oldAngle)
1860 {
1861         /* check that protection flags are set */
1862         if ((protectflag & (OB_LOCK_ROTX|OB_LOCK_ROTY|OB_LOCK_ROTZ|OB_LOCK_ROTW)) == 0)
1863                 return;
1864         
1865         if (protectflag & OB_LOCK_ROT4D) {
1866                 /* axis-angle getting limited as 4D entities that they are... */
1867                 if (protectflag & OB_LOCK_ROTW)
1868                         *angle= oldAngle;
1869                 if (protectflag & OB_LOCK_ROTX)
1870                         axis[0]= oldAxis[0];
1871                 if (protectflag & OB_LOCK_ROTY)
1872                         axis[1]= oldAxis[1];
1873                 if (protectflag & OB_LOCK_ROTZ)
1874                         axis[2]= oldAxis[2];
1875         }
1876         else {
1877                 /* axis-angle get limited with euler... */
1878                 float eul[3], oldeul[3];
1879                 
1880                 axis_angle_to_eulO( eul, EULER_ORDER_DEFAULT,axis, *angle);
1881                 axis_angle_to_eulO( oldeul, EULER_ORDER_DEFAULT,oldAxis, oldAngle);
1882                 
1883                 if (protectflag & OB_LOCK_ROTX)
1884                         eul[0]= oldeul[0];
1885                 if (protectflag & OB_LOCK_ROTY)
1886                         eul[1]= oldeul[1];
1887                 if (protectflag & OB_LOCK_ROTZ)
1888                         eul[2]= oldeul[2];
1889                 
1890                 eulO_to_axis_angle( axis, angle,eul, EULER_ORDER_DEFAULT);
1891                 
1892                 /* when converting to axis-angle, we need a special exception for the case when there is no axis */
1893                 if (IS_EQF(axis[0], axis[1]) && IS_EQF(axis[1], axis[2])) {
1894                         /* for now, rotate around y-axis then (so that it simply becomes the roll) */
1895                         axis[1]= 1.0f;
1896                 }
1897         }
1898 }
1899
1900 /* this function only does the delta rotation */
1901 static void protectedQuaternionBits(short protectflag, float *quat, float *oldquat)
1902 {
1903         /* check that protection flags are set */
1904         if ((protectflag & (OB_LOCK_ROTX|OB_LOCK_ROTY|OB_LOCK_ROTZ|OB_LOCK_ROTW)) == 0)
1905                 return;
1906         
1907         if (protectflag & OB_LOCK_ROT4D) {
1908                 /* quaternions getting limited as 4D entities that they are... */
1909                 if (protectflag & OB_LOCK_ROTW)
1910                         quat[0]= oldquat[0];
1911                 if (protectflag & OB_LOCK_ROTX)
1912                         quat[1]= oldquat[1];
1913                 if (protectflag & OB_LOCK_ROTY)
1914                         quat[2]= oldquat[2];
1915                 if (protectflag & OB_LOCK_ROTZ)
1916                         quat[3]= oldquat[3];
1917         }
1918         else {
1919                 /* quaternions get limited with euler... (compatability mode) */
1920                 float eul[3], oldeul[3], nquat[4], noldquat[4];
1921                 float qlen;
1922
1923                 qlen= normalize_qt_qt(nquat, quat);
1924                 normalize_qt_qt(noldquat, oldquat);
1925
1926                 quat_to_eul(eul, nquat);
1927                 quat_to_eul(oldeul, noldquat);
1928
1929                 if (protectflag & OB_LOCK_ROTX)
1930                         eul[0]= oldeul[0];
1931                 if (protectflag & OB_LOCK_ROTY)
1932                         eul[1]= oldeul[1];
1933                 if (protectflag & OB_LOCK_ROTZ)
1934                         eul[2]= oldeul[2];
1935
1936                 eul_to_quat( quat,eul);
1937
1938                 /* restore original quat size */
1939                 mul_qt_fl(quat, qlen);
1940                 
1941                 /* quaternions flip w sign to accumulate rotations correctly */
1942                 if ( (nquat[0]<0.0f && quat[0]>0.0f) || (nquat[0]>0.0f && quat[0]<0.0f) ) {
1943                         mul_qt_fl(quat, -1.0f);
1944                 }
1945         }
1946 }
1947
1948 /* ******************* TRANSFORM LIMITS ********************** */
1949
1950 static void constraintTransLim(TransInfo *UNUSED(t), TransData *td)
1951 {
1952         if (td->con) {
1953                 bConstraintTypeInfo *cti= get_constraint_typeinfo(CONSTRAINT_TYPE_LOCLIMIT);
1954                 bConstraintOb cob= {NULL};
1955                 bConstraint *con;
1956                 
1957                 /* Make a temporary bConstraintOb for using these limit constraints
1958                  *      - they only care that cob->matrix is correctly set ;-)
1959                  *      - current space should be local
1960                  */
1961                 unit_m4(cob.matrix);
1962                 VECCOPY(cob.matrix[3], td->loc);
1963                 
1964                 /* Evaluate valid constraints */
1965                 for (con= td->con; con; con= con->next) {
1966                         float tmat[4][4];
1967                         
1968                         /* only consider constraint if enabled */
1969                         if (con->flag & CONSTRAINT_DISABLE) continue;
1970                         if (con->enforce == 0.0f) continue;
1971                         
1972                         /* only use it if it's tagged for this purpose (and the right type) */
1973                         if (con->type == CONSTRAINT_TYPE_LOCLIMIT) {
1974                                 bLocLimitConstraint *data= con->data;
1975                                 
1976                                 if ((data->flag2 & LIMIT_TRANSFORM)==0)
1977                                         continue;
1978                                 
1979                                 /* do space conversions */
1980                                 if (con->ownspace == CONSTRAINT_SPACE_WORLD) {
1981                                         /* just multiply by td->mtx (this should be ok) */
1982                                         copy_m4_m4(tmat, cob.matrix);
1983                                         mul_m4_m3m4(cob.matrix, td->mtx, tmat);
1984                                 }
1985                                 else if (con->ownspace != CONSTRAINT_SPACE_LOCAL) {
1986                                         /* skip... incompatable spacetype */
1987                                         continue;
1988                                 }
1989                                 
1990                                 /* do constraint */
1991                                 cti->evaluate_constraint(con, &cob, NULL);
1992                                 
1993                                 /* convert spaces again */
1994                                 if (con->ownspace == CONSTRAINT_SPACE_WORLD) {
1995                                         /* just multiply by td->mtx (this should be ok) */
1996                                         copy_m4_m4(tmat, cob.matrix);
1997                                         mul_m4_m3m4(cob.matrix, td->smtx, tmat);
1998                                 }
1999                         }
2000                 }
2001                 
2002                 /* copy results from cob->matrix */
2003                 VECCOPY(td->loc, cob.matrix[3]);
2004         }
2005 }
2006
2007 static void constraintob_from_transdata(bConstraintOb *cob, TransData *td)
2008 {
2009         /* Make a temporary bConstraintOb for use by limit constraints
2010          *      - they only care that cob->matrix is correctly set ;-)
2011          *      - current space should be local
2012          */
2013         memset(cob, 0, sizeof(bConstraintOb));
2014         if (td->ext)
2015         {
2016                 if (td->ext->rotOrder == ROT_MODE_QUAT) {
2017                         /* quats */
2018                         /* objects and bones do normalization first too, otherwise
2019                            we don't necessarily end up with a rotation matrix, and
2020                            then conversion back to quat gives a different result */
2021                         float quat[4];
2022                         normalize_qt_qt(quat, td->ext->quat);
2023                         quat_to_mat4(cob->matrix, quat);
2024                 }
2025                 else if (td->ext->rotOrder == ROT_MODE_AXISANGLE) {
2026                         /* axis angle */
2027                         axis_angle_to_mat4(cob->matrix, &td->ext->quat[1], td->ext->quat[0]);
2028                 }
2029                 else {
2030                         /* eulers */
2031                         eulO_to_mat4(cob->matrix, td->ext->rot, td->ext->rotOrder);
2032                 }
2033         }
2034 }
2035
2036 static void constraintRotLim(TransInfo *UNUSED(t), TransData *td)
2037 {
2038         if (td->con) {
2039                 bConstraintTypeInfo *cti= get_constraint_typeinfo(CONSTRAINT_TYPE_ROTLIMIT);
2040                 bConstraintOb cob;
2041                 bConstraint *con;
2042                 int dolimit = 0;
2043                 
2044                 /* Evaluate valid constraints */
2045                 for (con= td->con; con; con= con->next) {
2046                         /* only consider constraint if enabled */
2047                         if (con->flag & CONSTRAINT_DISABLE) continue;
2048                         if (con->enforce == 0.0f) continue;
2049                         
2050                         /* we're only interested in Limit-Rotation constraints */
2051                         if (con->type == CONSTRAINT_TYPE_ROTLIMIT) {
2052                                 bRotLimitConstraint *data= con->data;
2053                                 float tmat[4][4];
2054                                 
2055                                 /* only use it if it's tagged for this purpose */
2056                                 if ((data->flag2 & LIMIT_TRANSFORM)==0)
2057                                         continue;
2058
2059                                 /* skip incompatable spacetypes */
2060                                 if (!ELEM(con->ownspace, CONSTRAINT_SPACE_WORLD, CONSTRAINT_SPACE_LOCAL))
2061                                         continue;
2062
2063                                 /* only do conversion if necessary, to preserve quats and eulers */
2064                                 if(!dolimit) {
2065                                         constraintob_from_transdata(&cob, td);
2066                                         dolimit= 1;
2067                                 }
2068                                 
2069                                 /* do space conversions */
2070                                 if (con->ownspace == CONSTRAINT_SPACE_WORLD) {
2071                                         /* just multiply by td->mtx (this should be ok) */
2072                                         copy_m4_m4(tmat, cob.matrix);
2073                                         mul_m4_m3m4(cob.matrix, td->mtx, tmat);
2074                                 }
2075                                 
2076                                 /* do constraint */
2077                                 cti->evaluate_constraint(con, &cob, NULL);
2078                                 
2079                                 /* convert spaces again */
2080                                 if (con->ownspace == CONSTRAINT_SPACE_WORLD) {
2081                                         /* just multiply by td->mtx (this should be ok) */
2082                                         copy_m4_m4(tmat, cob.matrix);
2083                                         mul_m4_m3m4(cob.matrix, td->smtx, tmat);
2084                                 }
2085                         }
2086                 }
2087                 
2088                 if(dolimit) {
2089                         /* copy results from cob->matrix */
2090                         if (td->ext->rotOrder == ROT_MODE_QUAT) {
2091                                 /* quats */
2092                                 mat4_to_quat( td->ext->quat,cob.matrix);
2093                         }
2094                         else if (td->ext->rotOrder == ROT_MODE_AXISANGLE) {
2095                                 /* axis angle */
2096                                 mat4_to_axis_angle( &td->ext->quat[1], &td->ext->quat[0],cob.matrix);
2097                         }
2098                         else {
2099                                 /* eulers */
2100                                 mat4_to_eulO( td->ext->rot, td->ext->rotOrder,cob.matrix);
2101                         }
2102                 }
2103         }
2104 }
2105
2106 static void constraintSizeLim(TransInfo *t, TransData *td)
2107 {
2108         if (td->con && td->ext) {
2109                 bConstraintTypeInfo *cti= get_constraint_typeinfo(CONSTRAINT_TYPE_SIZELIMIT);
2110                 bConstraintOb cob= {NULL};
2111                 bConstraint *con;
2112                 
2113                 /* Make a temporary bConstraintOb for using these limit constraints
2114                  *      - they only care that cob->matrix is correctly set ;-)
2115                  *      - current space should be local
2116                  */
2117                 if ((td->flag & TD_SINGLESIZE) && !(t->con.mode & CON_APPLY)) {
2118                         /* scale val and reset size */
2119                         return; // TODO: fix this case
2120                 }
2121                 else {
2122                         /* Reset val if SINGLESIZE but using a constraint */
2123                         if (td->flag & TD_SINGLESIZE)
2124                                 return;
2125                         
2126                         size_to_mat4( cob.matrix,td->ext->size);
2127                 }
2128                 
2129                 /* Evaluate valid constraints */
2130                 for (con= td->con; con; con= con->next) {
2131                         /* only consider constraint if enabled */
2132                         if (con->flag & CONSTRAINT_DISABLE) continue;
2133                         if (con->enforce == 0.0f) continue;
2134                         
2135                         /* we're only interested in Limit-Scale constraints */
2136                         if (con->type == CONSTRAINT_TYPE_SIZELIMIT) {
2137                                 bSizeLimitConstraint *data= con->data;
2138                                 float tmat[4][4];
2139                                 
2140                                 /* only use it if it's tagged for this purpose */
2141                                 if ((data->flag2 & LIMIT_TRANSFORM)==0)
2142                                         continue;
2143                                 
2144                                 /* do space conversions */
2145                                 if (con->ownspace == CONSTRAINT_SPACE_WORLD) {
2146                                         /* just multiply by td->mtx (this should be ok) */
2147                                         copy_m4_m4(tmat, cob.matrix);
2148                                         mul_m4_m3m4(cob.matrix, td->mtx, tmat);
2149                                 }
2150                                 else if (con->ownspace != CONSTRAINT_SPACE_LOCAL) {
2151                                         /* skip... incompatable spacetype */
2152                                         continue;
2153                                 }
2154                                 
2155                                 /* do constraint */
2156                                 cti->evaluate_constraint(con, &cob, NULL);
2157                                 
2158                                 /* convert spaces again */
2159                                 if (con->ownspace == CONSTRAINT_SPACE_WORLD) {
2160                                         /* just multiply by td->mtx (this should be ok) */
2161                                         copy_m4_m4(tmat, cob.matrix);
2162                                         mul_m4_m3m4(cob.matrix, td->smtx, tmat);
2163                                 }
2164                         }
2165                 }
2166                 
2167                 /* copy results from cob->matrix */
2168                 if ((td->flag & TD_SINGLESIZE) && !(t->con.mode & CON_APPLY)) {
2169                         /* scale val and reset size */
2170                         return; // TODO: fix this case
2171                 }
2172                 else {
2173                         /* Reset val if SINGLESIZE but using a constraint */
2174                         if (td->flag & TD_SINGLESIZE)
2175                                 return;
2176                         
2177                         mat4_to_size( td->ext->size,cob.matrix);
2178                 }
2179         }
2180 }
2181
2182 /* ************************** WARP *************************** */
2183
2184 static void postInputWarp(TransInfo *t, float values[3])
2185 {
2186         mul_v3_fl(values, (float)(M_PI * 2));
2187
2188         if (t->customData) /* non-null value indicates reversed input */
2189         {
2190                 negate_v3(values);
2191         }
2192 }
2193
2194 void initWarp(TransInfo *t)
2195 {
2196         float max[3], min[3];
2197         int i;
2198         
2199         t->mode = TFM_WARP;
2200         t->transform = Warp;
2201         t->handleEvent = handleEventWarp;
2202         
2203         setInputPostFct(&t->mouse, postInputWarp);
2204         initMouseInputMode(t, &t->mouse, INPUT_HORIZONTAL_RATIO);
2205         
2206         t->idx_max = 0;
2207         t->num.idx_max = 0;
2208         t->snap[0] = 0.0f;
2209         t->snap[1] = 5.0f / 180.0f * (float)M_PI;
2210         t->snap[2] = 1.0f / 180.0f * (float)M_PI;
2211         
2212         t->num.increment = 1.0f;
2213
2214         t->flag |= T_NO_CONSTRAINT;
2215         
2216         /* we need min/max in view space */
2217         for(i = 0; i < t->total; i++) {
2218                 float center[3];
2219                 copy_v3_v3(center, t->data[i].center);
2220                 mul_m3_v3(t->data[i].mtx, center);
2221                 mul_m4_v3(t->viewmat, center);
2222                 sub_v3_v3(center, t->viewmat[3]);
2223                 if (i)
2224                         minmax_v3v3_v3(min, max, center);
2225                 else {
2226                         copy_v3_v3(max, center);
2227                         copy_v3_v3(min, center);
2228                 }
2229         }
2230
2231         mid_v3_v3v3(t->center, min, max);
2232
2233         if (max[0] == min[0]) max[0] += 0.1f; /* not optimal, but flipping is better than invalid garbage (i.e. division by zero!) */
2234         t->val= (max[0]-min[0])/2.0f; /* t->val is X dimension projected boundbox */
2235 }
2236
2237 int handleEventWarp(TransInfo *t, wmEvent *event)
2238 {
2239         int status = 0;
2240         
2241         if (event->type == MIDDLEMOUSE && event->val==KM_PRESS)
2242         {
2243                 // Use customData pointer to signal warp direction
2244                 if      (t->customData == NULL)
2245                         t->customData = (void*)1;
2246                 else
2247                         t->customData = NULL;
2248                 
2249                 status = 1;
2250         }
2251         
2252         return status;
2253 }
2254
2255 int Warp(TransInfo *t, const int UNUSED(mval[2]))
2256 {
2257         TransData *td = t->data;
2258         float vec[3], circumfac, dist, phi0, co, si, *curs, cursor[3], gcursor[3];
2259         int i;
2260         char str[50];
2261         
2262         curs= give_cursor(t->scene, t->view);
2263         /*
2264          * gcursor is the one used for helpline.
2265          * It has to be in the same space as the drawing loop
2266          * (that means it needs to be in the object's space when in edit mode and
2267          *  in global space in object mode)
2268          *
2269          * cursor is used for calculations.
2270          * It needs to be in view space, but we need to take object's offset
2271          * into account if in Edit mode.
2272          */
2273         VECCOPY(cursor, curs);
2274         VECCOPY(gcursor, cursor);
2275         if (t->flag & T_EDIT) {
2276                 sub_v3_v3(cursor, t->obedit->obmat[3]);
2277                 sub_v3_v3(gcursor, t->obedit->obmat[3]);
2278                 mul_m3_v3(t->data->smtx, gcursor);
2279         }
2280         mul_m4_v3(t->viewmat, cursor);
2281         sub_v3_v3(cursor, t->viewmat[3]);
2282         
2283         /* amount of radians for warp */
2284         circumfac = t->values[0];
2285         
2286         snapGrid(t, &circumfac);
2287         applyNumInput(&t->num, &circumfac);
2288         
2289         /* header print for NumInput */
2290         if (hasNumInput(&t->num)) {
2291                 char c[20];
2292                 
2293                 outputNumInput(&(t->num), c);
2294                 
2295                 sprintf(str, "Warp: %s", c);
2296
2297                 circumfac = DEG2RADF(circumfac);
2298         }
2299         else {
2300                 /* default header print */
2301                 sprintf(str, "Warp: %.3f", RAD2DEGF(circumfac));
2302         }
2303         
2304         t->values[0] = circumfac;
2305
2306         circumfac /= 2; /* only need 180 on each side to make 360 */
2307         
2308         for(i = 0; i < t->total; i++, td++) {
2309                 float loc[3];
2310                 if (td->flag & TD_NOACTION)
2311                         break;
2312                 
2313                 if (td->flag & TD_SKIP)
2314                         continue;
2315                 
2316                 /* translate point to center, rotate in such a way that outline==distance */
2317                 VECCOPY(vec, td->iloc);
2318                 mul_m3_v3(td->mtx, vec);
2319                 mul_m4_v3(t->viewmat, vec);
2320                 sub_v3_v3(vec, t->viewmat[3]);
2321                 
2322                 dist= vec[0]-cursor[0];
2323                 
2324                 /* t->val is X dimension projected boundbox */
2325                 phi0= (circumfac*dist/t->val);
2326                 
2327                 vec[1]= (vec[1]-cursor[1]);
2328                 
2329                 co= (float)cos(phi0);
2330                 si= (float)sin(phi0);
2331                 loc[0]= -si*vec[1]+cursor[0];
2332                 loc[1]= co*vec[1]+cursor[1];
2333                 loc[2]= vec[2];
2334                 
2335                 mul_m4_v3(t->viewinv, loc);
2336                 sub_v3_v3(loc, t->viewinv[3]);
2337                 mul_m3_v3(td->smtx, loc);
2338                 
2339                 sub_v3_v3(loc, td->iloc);
2340                 mul_v3_fl(loc, td->factor);
2341                 add_v3_v3v3(td->loc, td->iloc, loc);
2342         }
2343         
2344         recalcData(t);
2345         
2346         ED_area_headerprint(t->sa, str);
2347         
2348         return 1;
2349 }
2350
2351 /* ************************** SHEAR *************************** */
2352
2353 static void postInputShear(TransInfo *UNUSED(t), float values[3])
2354 {
2355         mul_v3_fl(values, 0.05f);
2356 }
2357
2358 void initShear(TransInfo *t)
2359 {
2360         t->mode = TFM_SHEAR;
2361         t->transform = Shear;
2362         t->handleEvent = handleEventShear;
2363         
2364         setInputPostFct(&t->mouse, postInputShear);
2365         initMouseInputMode(t, &t->mouse, INPUT_HORIZONTAL_ABSOLUTE);
2366         
2367         t->idx_max = 0;
2368         t->num.idx_max = 0;
2369         t->snap[0] = 0.0f;
2370         t->snap[1] = 0.1f;
2371         t->snap[2] = t->snap[1] * 0.1f;
2372         
2373         t->num.increment = 0.1f;
2374
2375         t->flag |= T_NO_CONSTRAINT;
2376 }
2377
2378 int handleEventShear(TransInfo *t, wmEvent *event)
2379 {
2380         int status = 0;
2381         
2382         if (event->type == MIDDLEMOUSE && event->val==KM_PRESS)
2383         {
2384                 // Use customData pointer to signal Shear direction
2385                 if      (t->customData == NULL)
2386                 {
2387                         initMouseInputMode(t, &t->mouse, INPUT_VERTICAL_ABSOLUTE);
2388                         t->customData = (void*)1;
2389                 }
2390                 else
2391                 {
2392                         initMouseInputMode(t, &t->mouse, INPUT_HORIZONTAL_ABSOLUTE);
2393                         t->customData = NULL;
2394                 }
2395                 
2396                 status = 1;
2397         }
2398         
2399         return status;
2400 }
2401
2402
2403 int Shear(TransInfo *t, const int UNUSED(mval[2]))
2404 {
2405         TransData *td = t->data;
2406         float vec[3];
2407         float smat[3][3], tmat[3][3], totmat[3][3], persmat[3][3], persinv[3][3];
2408         float value;
2409         int i;
2410         char str[50];
2411         
2412         copy_m3_m4(persmat, t->viewmat);
2413         invert_m3_m3(persinv, persmat);
2414         
2415         value = t->values[0];
2416         
2417         snapGrid(t, &value);
2418         
2419         applyNumInput(&t->num, &value);
2420         
2421         /* header print for NumInput */
2422         if (hasNumInput(&t->num)) {
2423                 char c[20];
2424                 
2425                 outputNumInput(&(t->num), c);
2426                 
2427                 sprintf(str, "Shear: %s %s", c, t->proptext);
2428         }
2429         else {
2430                 /* default header print */
2431                 sprintf(str, "Shear: %.3f %s", value, t->proptext);
2432         }
2433         
2434         unit_m3(smat);
2435         
2436         // Custom data signals shear direction
2437         if (t->customData == NULL)
2438                 smat[1][0] = value;
2439         else
2440                 smat[0][1] = value;
2441         
2442         mul_m3_m3m3(tmat, smat, persmat);
2443         mul_m3_m3m3(totmat, persinv, tmat);
2444         
2445         for(i = 0 ; i < t->total; i++, td++) {
2446                 if (td->flag & TD_NOACTION)
2447                         break;
2448                 
2449                 if (td->flag & TD_SKIP)
2450                         continue;
2451                 
2452                 if (t->obedit) {
2453                         float mat3[3][3];
2454                         mul_m3_m3m3(mat3, totmat, td->mtx);
2455                         mul_m3_m3m3(tmat, td->smtx, mat3);
2456                 }
2457                 else {
2458                         copy_m3_m3(tmat, totmat);
2459                 }
2460                 sub_v3_v3v3(vec, td->center, t->center);
2461                 
2462                 mul_m3_v3(tmat, vec);
2463                 
2464                 add_v3_v3(vec, t->center);
2465                 sub_v3_v3(vec, td->center);
2466                 
2467                 mul_v3_fl(vec, td->factor);
2468                 
2469                 add_v3_v3v3(td->loc, td->iloc, vec);
2470         }
2471         
2472         recalcData(t);
2473         
2474         ED_area_headerprint(t->sa, str);
2475
2476         return 1;
2477 }
2478
2479 /* ************************** RESIZE *************************** */
2480
2481 void initResize(TransInfo *t)
2482 {
2483         t->mode = TFM_RESIZE;
2484         t->transform = Resize;
2485         
2486         initMouseInputMode(t, &t->mouse, INPUT_SPRING_FLIP);
2487         
2488         t->flag |= T_NULL_ONE;
2489         t->num.flag |= NUM_NULL_ONE;
2490         t->num.flag |= NUM_AFFECT_ALL;
2491         if (!t->obedit) {
2492                 t->flag |= T_NO_ZERO;
2493                 t->num.flag |= NUM_NO_ZERO;
2494         }
2495         
2496         t->idx_max = 2;
2497         t->num.idx_max = 2;
2498         t->snap[0] = 0.0f;
2499         t->snap[1] = 0.1f;
2500         t->snap[2] = t->snap[1] * 0.1f;
2501
2502         t->num.increment = t->snap[1];
2503 }
2504
2505 static void headerResize(TransInfo *t, float vec[3], char *str) {
2506         char tvec[60];
2507         char *spos= str;
2508         if (hasNumInput(&t->num)) {
2509                 outputNumInput(&(t->num), tvec);
2510         }
2511         else {
2512                 sprintf(&tvec[0], "%.4f", vec[0]);
2513                 sprintf(&tvec[20], "%.4f", vec[1]);
2514                 sprintf(&tvec[40], "%.4f", vec[2]);
2515         }
2516         
2517         if (t->con.mode & CON_APPLY) {
2518                 switch(t->num.idx_max) {
2519                 case 0:
2520                         spos += sprintf(spos, "Scale: %s%s %s", &tvec[0], t->con.text, t->proptext);
2521                         break;
2522                 case 1:
2523                         spos += sprintf(spos, "Scale: %s : %s%s %s", &tvec[0], &tvec[20], t->con.text, t->proptext);
2524                         break;
2525                 case 2:
2526                         spos += sprintf(spos, "Scale: %s : %s : %s%s %s", &tvec[0], &tvec[20], &tvec[40], t->con.text, t->proptext);
2527                 }
2528         }
2529         else {
2530                 if (t->flag & T_2D_EDIT)
2531                         spos += sprintf(spos, "Scale X: %s   Y: %s%s %s", &tvec[0], &tvec[20], t->con.text, t->proptext);
2532                 else
2533                         spos += sprintf(spos, "Scale X: %s   Y: %s  Z: %s%s %s", &tvec[0], &tvec[20], &tvec[40], t->con.text, t->proptext);
2534         }
2535         
2536         if (t->flag & (T_PROP_EDIT|T_PROP_CONNECTED)) {
2537                 spos += sprintf(spos, " Proportional size: %.2f", t->prop_size);
2538         }
2539
2540         (void)spos;
2541 }
2542
2543 #define SIGN(a)         (a<-FLT_EPSILON?1:a>FLT_EPSILON?2:3)
2544 #define VECSIGNFLIP(a, b) ((SIGN(a[0]) & SIGN(b[0]))==0 || (SIGN(a[1]) & SIGN(b[1]))==0 || (SIGN(a[2]) & SIGN(b[2]))==0)
2545
2546 /* smat is reference matrix, only scaled */
2547 static void TransMat3ToSize( float mat[][3], float smat[][3], float *size)
2548 {
2549         float vec[3];
2550         
2551         copy_v3_v3(vec, mat[0]);
2552         size[0]= normalize_v3(vec);
2553         copy_v3_v3(vec, mat[1]);
2554         size[1]= normalize_v3(vec);
2555         copy_v3_v3(vec, mat[2]);
2556         size[2]= normalize_v3(vec);
2557         
2558         /* first tried with dotproduct... but the sign flip is crucial */
2559         if( VECSIGNFLIP(mat[0], smat[0]) ) size[0]= -size[0];
2560         if( VECSIGNFLIP(mat[1], smat[1]) ) size[1]= -size[1];
2561         if( VECSIGNFLIP(mat[2], smat[2]) ) size[2]= -size[2];
2562 }
2563
2564
2565 static void ElementResize(TransInfo *t, TransData *td, float mat[3][3]) {
2566         float tmat[3][3], smat[3][3], center[3];
2567         float vec[3];
2568         
2569         if (t->flag & T_EDIT) {
2570                 mul_m3_m3m3(smat, mat, td->mtx);
2571                 mul_m3_m3m3(tmat, td->smtx, smat);
2572         }
2573         else {
2574                 copy_m3_m3(tmat, mat);
2575         }
2576         
2577         if (t->con.applySize) {
2578                 t->con.applySize(t, td, tmat);
2579         }
2580         
2581         /* local constraint shouldn't alter center */
2582         if (t->around == V3D_LOCAL) {
2583                 if (t->flag & T_OBJECT) {
2584                         VECCOPY(center, td->center);
2585                 }
2586                 else if (t->flag & T_EDIT) {
2587                         
2588                         if(t->around==V3D_LOCAL && (t->settings->selectmode & SCE_SELECT_FACE)) {
2589                                 VECCOPY(center, td->center);
2590                         }
2591                         else {
2592                                 VECCOPY(center, t->center);
2593                         }
2594                 }
2595                 else {
2596                         VECCOPY(center, t->center);
2597                 }
2598         }
2599         else {
2600                 VECCOPY(center, t->center);
2601         }
2602         
2603         if (td->ext) {
2604                 float fsize[3];
2605                 
2606                 if (t->flag & (T_OBJECT|T_TEXTURE|T_POSE)) {
2607                         float obsizemat[3][3];
2608                         // Reorient the size mat to fit the oriented object.
2609                         mul_m3_m3m3(obsizemat, tmat, td->axismtx);
2610                         //print_m3("obsizemat", obsizemat);
2611                         TransMat3ToSize(obsizemat, td->axismtx, fsize);
2612                         //print_v3("fsize", fsize);
2613                 }
2614                 else {
2615                         mat3_to_size( fsize,tmat);
2616                 }
2617                 
2618                 protectedSizeBits(td->protectflag, fsize);
2619                 
2620                 if ((t->flag & T_V3D_ALIGN)==0) {       // align mode doesn't resize objects itself
2621                         if((td->flag & TD_SINGLESIZE) && !(t->con.mode & CON_APPLY)){
2622                                 /* scale val and reset size */
2623                                  *td->val = td->ival * (1 + (fsize[0] - 1) * td->factor);
2624                                 
2625                                 td->ext->size[0] = td->ext->isize[0];
2626                                 td->ext->size[1] = td->ext->isize[1];
2627                                 td->ext->size[2] = td->ext->isize[2];
2628                          }
2629                         else {
2630                                 /* Reset val if SINGLESIZE but using a constraint */
2631                                 if (td->flag & TD_SINGLESIZE)
2632                                          *td->val = td->ival;
2633                                 
2634                                 td->ext->size[0] = td->ext->isize[0] * (1 + (fsize[0] - 1) * td->factor);
2635                                 td->ext->size[1] = td->ext->isize[1] * (1 + (fsize[1] - 1) * td->factor);
2636                                 td->ext->size[2] = td->ext->isize[2] * (1 + (fsize[2] - 1) * td->factor);
2637                         }
2638                 }
2639                 
2640                 constraintSizeLim(t, td);
2641         }
2642         
2643         /* For individual element center, Editmode need to use iloc */
2644         if (t->flag & T_POINTS)
2645                 sub_v3_v3v3(vec, td->iloc, center);
2646         else
2647                 sub_v3_v3v3(vec, td->center, center);
2648         
2649         mul_m3_v3(tmat, vec);
2650         
2651         add_v3_v3(vec, center);
2652         if (t->flag & T_POINTS)
2653                 sub_v3_v3(vec, td->iloc);
2654         else
2655                 sub_v3_v3(vec, td->center);
2656         
2657         mul_v3_fl(vec, td->factor);
2658         
2659         if (t->flag & (T_OBJECT|T_POSE)) {
2660                 mul_m3_v3(td->smtx, vec);
2661         }
2662         
2663         protectedTransBits(td->protectflag, vec);
2664         add_v3_v3v3(td->loc, td->iloc, vec);
2665         
2666         constraintTransLim(t, td);
2667 }
2668
2669 int Resize(TransInfo *t, const int mval[2])
2670 {
2671         TransData *td;
2672         float size[3], mat[3][3];
2673         float ratio;
2674         int i;
2675         char str[200];
2676         
2677         /* for manipulator, center handle, the scaling can't be done relative to center */
2678         if( (t->flag & T_USES_MANIPULATOR) && t->con.mode==0)
2679         {
2680                 ratio = 1.0f - ((t->imval[0] - mval[0]) + (t->imval[1] - mval[1]))/100.0f;
2681         }
2682         else
2683         {
2684                 ratio = t->values[0];
2685         }
2686         
2687         size[0] = size[1] = size[2] = ratio;
2688         
2689         snapGrid(t, size);
2690         
2691         if (hasNumInput(&t->num)) {
2692                 applyNumInput(&t->num, size);
2693                 constraintNumInput(t, size);
2694         }
2695         
2696         applySnapping(t, size);
2697         
2698         if (t->flag & T_AUTOVALUES)
2699         {
2700                 VECCOPY(size, t->auto_values);
2701         }
2702         
2703         VECCOPY(t->values, size);
2704         
2705         size_to_mat3( mat,size);
2706         
2707         if (t->con.applySize) {
2708                 t->con.applySize(t, NULL, mat);
2709         }
2710         
2711         copy_m3_m3(t->mat, mat);        // used in manipulator
2712         
2713         headerResize(t, size, str);
2714         
2715         for(i = 0, td=t->data; i < t->total; i++, td++) {
2716                 if (td->flag & TD_NOACTION)
2717                         break;
2718                 
2719                 if (td->flag & TD_SKIP)
2720                         continue;
2721                 
2722                 ElementResize(t, td, mat);
2723         }
2724         
2725         /* evil hack - redo resize if cliping needed */
2726         if (t->flag & T_CLIP_UV && clipUVTransform(t, size, 1)) {
2727                 size_to_mat3( mat,size);
2728                 
2729                 if (t->con.applySize)
2730                         t->con.applySize(t, NULL, mat);
2731                 
2732                 for(i = 0, td=t->data; i < t->total; i++, td++)
2733                         ElementResize(t, td, mat);
2734         }
2735         
2736         recalcData(t);
2737         
2738         ED_area_headerprint(t->sa, str);
2739         
2740         return 1;
2741 }
2742
2743 /* ************************** TOSPHERE *************************** */
2744
2745 void initToSphere(TransInfo *t)
2746 {
2747         TransData *td = t->data;
2748         int i;
2749         
2750         t->mode = TFM_TOSPHERE;
2751         t->transform = ToSphere;
2752         
2753         initMouseInputMode(t, &t->mouse, INPUT_HORIZONTAL_RATIO);
2754         
2755         t->idx_max = 0;
2756         t->num.idx_max = 0;
2757         t->snap[0] = 0.0f;
2758         t->snap[1] = 0.1f;
2759         t->snap[2] = t->snap[1] * 0.1f;
2760         
2761         t->num.increment = t->snap[1];
2762
2763         t->num.flag |= NUM_NULL_ONE | NUM_NO_NEGATIVE;
2764         t->flag |= T_NO_CONSTRAINT;
2765         
2766         // Calculate average radius
2767         for(i = 0 ; i < t->total; i++, td++) {
2768                 t->val += len_v3v3(t->center, td->iloc);
2769         }
2770         
2771         t->val /= (float)t->total;
2772 }
2773
2774 int ToSphere(TransInfo *t, const int UNUSED(mval[2]))
2775 {
2776         float vec[3];
2777         float ratio, radius;
2778         int i;
2779         char str[64];
2780         TransData *td = t->data;
2781         
2782         ratio = t->values[0];
2783         
2784         snapGrid(t, &ratio);
2785         
2786         applyNumInput(&t->num, &ratio);
2787         
2788         if (ratio < 0)
2789                 ratio = 0.0f;
2790         else if (ratio > 1)
2791                 ratio = 1.0f;
2792         
2793         t->values[0] = ratio;
2794
2795         /* header print for NumInput */
2796         if (hasNumInput(&t->num)) {
2797                 char c[20];
2798                 
2799                 outputNumInput(&(t->num), c);
2800                 
2801                 sprintf(str, "To Sphere: %s %s", c, t->proptext);
2802         }
2803         else {
2804                 /* default header print */
2805                 sprintf(str, "To Sphere: %.4f %s", ratio, t->proptext);
2806         }
2807         
2808         
2809         for(i = 0 ; i < t->total; i++, td++) {
2810                 float tratio;
2811                 if (td->flag & TD_NOACTION)
2812                         break;
2813                 
2814                 if (td->flag & TD_SKIP)
2815                         continue;
2816                 
2817                 sub_v3_v3v3(vec, td->iloc, t->center);
2818                 
2819                 radius = normalize_v3(vec);
2820                 
2821                 tratio = ratio * td->factor;
2822                 
2823                 mul_v3_fl(vec, radius * (1.0f - tratio) + t->val * tratio);
2824                 
2825                 add_v3_v3v3(td->loc, t->center, vec);
2826         }
2827         
2828         
2829         recalcData(t);
2830         
2831         ED_area_headerprint(t->sa, str);
2832         
2833         return 1;
2834 }
2835
2836 /* ************************** ROTATION *************************** */
2837
2838
2839 static void postInputRotation(TransInfo *t, float values[3])
2840 {
2841         if ((t->con.mode & CON_APPLY) && t->con.applyRot) {
2842                 t->con.applyRot(t, NULL, t->axis, values);
2843         }
2844 }
2845
2846 void initRotation(TransInfo *t)
2847 {
2848         t->mode = TFM_ROTATION;
2849         t->transform = Rotation;
2850         
2851         setInputPostFct(&t->mouse, postInputRotation);
2852         initMouseInputMode(t, &t->mouse, INPUT_ANGLE);
2853         
2854         t->idx_max = 0;
2855         t->num.idx_max = 0;
2856         t->snap[0] = 0.0f;
2857         t->snap[1] = (float)((5.0/180)*M_PI);
2858         t->snap[2] = t->snap[1] * 0.2f;
2859         
2860         t->num.increment = 1.0f;
2861
2862         if (t->flag & T_2D_EDIT)
2863                 t->flag |= T_NO_CONSTRAINT;
2864
2865         negate_v3_v3(t->axis, t->viewinv[2]);
2866         normalize_v3(t->axis);
2867
2868         copy_v3_v3(t->axis_orig, t->axis);
2869 }
2870
2871 static void ElementRotation(TransInfo *t, TransData *td, float mat[3][3], short around) {
2872         float vec[3], totmat[3][3], smat[3][3];
2873         float eul[3], fmat[3][3], quat[4];
2874         float *center = t->center;
2875         
2876         /* local constraint shouldn't alter center */
2877         if (around == V3D_LOCAL) {
2878                 if (t->flag & (T_OBJECT|T_POSE)) {
2879                         center = td->center;
2880                 }
2881                 else {
2882                         if(around==V3D_LOCAL && (t->settings->selectmode & SCE_SELECT_FACE)) {
2883                                 center = td->center;
2884                         }
2885                 }
2886         }
2887         
2888         if (t->flag & T_POINTS) {
2889                 mul_m3_m3m3(totmat, mat, td->mtx);
2890                 mul_m3_m3m3(smat, td->smtx, totmat);
2891                 
2892                 sub_v3_v3v3(vec, td->iloc, center);
2893                 mul_m3_v3(smat, vec);
2894                 
2895                 add_v3_v3v3(td->loc, vec, center);
2896                 
2897                 sub_v3_v3v3(vec,td->loc,td->iloc);
2898                 protectedTransBits(td->protectflag, vec);
2899                 add_v3_v3v3(td->loc, td->iloc, vec);
2900                 
2901                 
2902                 if(td->flag & TD_USEQUAT) {
2903                         mul_serie_m3(fmat, td->mtx, mat, td->smtx, NULL, NULL, NULL, NULL, NULL);
2904                         mat3_to_quat( quat,fmat);       // Actual transform
2905                         
2906                         if(td->ext->quat){
2907                                 mul_qt_qtqt(td->ext->quat, quat, td->ext->iquat);
2908                                 
2909                                 /* is there a reason not to have this here? -jahka */
2910                                 protectedQuaternionBits(td->protectflag, td->ext->quat, td->ext->iquat);
2911                         }
2912                 }
2913         }
2914         /**
2915          * HACK WARNING
2916          *
2917          * This is some VERY ugly special case to deal with pose mode.
2918          *
2919          * The problem is that mtx and smtx include each bone orientation.
2920          *
2921          * That is needed to rotate each bone properly, HOWEVER, to calculate
2922          * the translation component, we only need the actual armature object's
2923          * matrix (and inverse). That is not all though. Once the proper translation
2924          * has been computed, it has to be converted back into the bone's space.
2925          */
2926         else if (t->flag & T_POSE) {
2927                 float pmtx[3][3], imtx[3][3];
2928                 
2929                 // Extract and invert armature object matrix
2930                 copy_m3_m4(pmtx, t->poseobj->obmat);
2931                 invert_m3_m3(imtx, pmtx);
2932                 
2933                 if ((td->flag & TD_NO_LOC) == 0)
2934                 {
2935                         sub_v3_v3v3(vec, td->center, center);
2936                         
2937                         mul_m3_v3(pmtx, vec);   // To Global space
2938                         mul_m3_v3(mat, vec);            // Applying rotation
2939                         mul_m3_v3(imtx, vec);   // To Local space
2940                         
2941                         add_v3_v3(vec, center);
2942                         /* vec now is the location where the object has to be */
2943                         
2944                         sub_v3_v3v3(vec, vec, td->center); // Translation needed from the initial location
2945                         
2946                         /* special exception, see TD_PBONE_LOCAL_MTX definition comments */
2947                         if(td->flag & TD_PBONE_LOCAL_MTX_P) {
2948                                 /* do nothing */
2949                         }
2950                         else if (td->flag & TD_PBONE_LOCAL_MTX_C) {
2951                                 mul_m3_v3(pmtx, vec);   // To Global space
2952                                 mul_m3_v3(td->ext->l_smtx, vec);// To Pose space (Local Location)
2953                         }
2954                         else {
2955                                 mul_m3_v3(pmtx, vec);   // To Global space
2956                                 mul_m3_v3(td->smtx, vec);// To Pose space
2957                         }
2958
2959                         protectedTransBits(td->protectflag, vec);
2960                         
2961                         add_v3_v3v3(td->loc, td->iloc, vec);
2962                         
2963                         constraintTransLim(t, td);
2964                 }
2965                 
2966                 /* rotation */
2967                 if ((t->flag & T_V3D_ALIGN)==0) { // align mode doesn't rotate objects itself
2968                         /* euler or quaternion/axis-angle? */
2969                         if (td->ext->rotOrder == ROT_MODE_QUAT) {
2970                                 mul_serie_m3(fmat, td->mtx, mat, td->smtx, NULL, NULL, NULL, NULL, NULL);
2971                              &nbs