source/blender/editors/transform/transform_generics.c

   1 /**
   2  * $Id$
   3  *
   4  * ***** BEGIN GPL LICENSE BLOCK *****
   5  *
   6  * This program is free software; you can redistribute it and/or
   7  * modify it under the terms of the GNU General Public License
   8  * as published by the Free Software Foundation; either version 2
   9  * of the License, or (at your option) any later version.
  10  *
  11  * This program is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14  * GNU General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU General Public License
  17  * along with this program; if not, write to the Free Software Foundation,
  18  * Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
  19  *
  20  * The Original Code is Copyright (C) 2001-2002 by NaN Holding BV.
  21  * All rights reserved.
  22  *
  23  * The Original Code is: all of this file.
  24  *
  25  * Contributor(s): none yet.
  26  *
  27  * ***** END GPL LICENSE BLOCK *****
  28  */
  29
  30 #include <string.h>
  31 #include <math.h>
  32
  33 #include "MEM_guardedalloc.h"
  34
  35 #include "BLO_sys_types.h" // for intptr_t support
  36
  37 #include "DNA_anim_types.h"
  38 #include "DNA_action_types.h"
  39 #include "DNA_armature_types.h"
  40 #include "DNA_constraint_types.h"
  41 #include "DNA_curve_types.h"
  42 #include "DNA_lattice_types.h"
  43 #include "DNA_mesh_types.h"
  44 #include "DNA_modifier_types.h"
  45 #include "DNA_nla_types.h"
  46 #include "DNA_node_types.h"
  47 #include "DNA_object_types.h"
  48 #include "DNA_object_force.h"
  49 #include "DNA_particle_types.h"
  50 #include "DNA_screen_types.h"
  51 #include "DNA_space_types.h"
  52 #include "DNA_scene_types.h"
  53 #include "DNA_userdef_types.h"
  54 #include "DNA_view3d_types.h"
  55 #include "DNA_windowmanager_types.h"
  56
  57 #include "RNA_access.h"
  58
  59 //#include "BIF_screen.h"
  60 //#include "BIF_mywindow.h"
  61 #include "BIF_gl.h"
  62 //#include "BIF_editmesh.h"
  63 //#include "BIF_editsima.h"
  64 //#include "BIF_editparticle.h"
  65 //#include "BIF_meshtools.h"
  66
  67 #include "BKE_action.h"
  68 #include "BKE_anim.h"
  69 #include "BKE_armature.h"
  70 #include "BKE_cloth.h"
  71 #include "BKE_curve.h"
  72 #include "BKE_depsgraph.h"
  73 #include "BKE_displist.h"
  74 #include "BKE_depsgraph.h"
  75 #include "BKE_fcurve.h"
  76 #include "BKE_global.h"
  77 #include "BKE_group.h"
  78 #include "BKE_lattice.h"
  79 #include "BKE_key.h"
  80 #include "BKE_mesh.h"
  81 #include "BKE_modifier.h"
  82 #include "BKE_nla.h"
  83 #include "BKE_object.h"
  84 #include "BKE_utildefines.h"
  85 #include "BKE_context.h"
  86
  87 #include "ED_anim_api.h"
  88 #include "ED_armature.h"
  89 #include "ED_image.h"
  90 #include "ED_keyframing.h"
  91 #include "ED_markers.h"
  92 #include "ED_mesh.h"
  93 #include "ED_retopo.h"
  94 #include "ED_space_api.h"
  95 #include "ED_uvedit.h"
  96 #include "ED_view3d.h"
  97
  98 //#include "BDR_unwrapper.h"
  99
 100 #include "BLI_arithb.h"
 101 #include "BLI_blenlib.h"
 102 #include "BLI_editVert.h"
 103 #include "BLI_rand.h"
 104
 105 #include "RNA_access.h"
 106
 107 #include "WM_types.h"
 108
 109 #include "UI_resources.h"
 110
 111 //#include "blendef.h"
 112 //
 113 //#include "mydevice.h"
 114
 115 #include "transform.h"
 116
 117 extern ListBase editelems;
 118
 119 /* ************************** Functions *************************** */
 120
 121 void getViewVector(TransInfo *t, float coord[3], float vec[3])
 122 {
 123         if (t->persp != V3D_ORTHO)
 124         {
 125                 float p1[4], p2[4];
 126
 127                 VECCOPY(p1, coord);
 128                 p1[3] = 1.0f;
 129                 VECCOPY(p2, p1);
 130                 p2[3] = 1.0f;
 131                 Mat4MulVec4fl(t->viewmat, p2);
 132
 133                 p2[0] = 2.0f * p2[0];
 134                 p2[1] = 2.0f * p2[1];
 135                 p2[2] = 2.0f * p2[2];
 136
 137                 Mat4MulVec4fl(t->viewinv, p2);
 138
 139                 VecSubf(vec, p1, p2);
 140         }
 141         else {
 142                 VECCOPY(vec, t->viewinv[2]);
 143         }
 144         Normalize(vec);
 145 }
 146
 147 /* ************************** GENERICS **************************** */
 148
 149 static void clipMirrorModifier(TransInfo *t, Object *ob)
 150 {
 151         ModifierData *md= ob->modifiers.first;
 152         float tolerance[3] = {0.0f, 0.0f, 0.0f};
 153         int axis = 0;
 154
 155         for (; md; md=md->next) {
 156                 if (md->type==eModifierType_Mirror) {
 157                         MirrorModifierData *mmd = (MirrorModifierData*) md;
 158
 159                         if(mmd->flag & MOD_MIR_CLIPPING) {
 160                                 axis = 0;
 161                                 if(mmd->flag & MOD_MIR_AXIS_X) {
 162                                         axis |= 1;
 163                                         tolerance[0] = mmd->tolerance;
 164                                 }
 165                                 if(mmd->flag & MOD_MIR_AXIS_Y) {
 166                                         axis |= 2;
 167                                         tolerance[1] = mmd->tolerance;
 168                                 }
 169                                 if(mmd->flag & MOD_MIR_AXIS_Z) {
 170                                         axis |= 4;
 171                                         tolerance[2] = mmd->tolerance;
 172                                 }
 173                                 if (axis) {
 174                                         float mtx[4][4], imtx[4][4];
 175                                         int i;
 176                                         TransData *td = t->data;
 177
 178                                         if (mmd->mirror_ob) {
 179                                                 float obinv[4][4];
 180
 181                                                 Mat4Invert(obinv, mmd->mirror_ob->obmat);
 182                                                 Mat4MulMat4(mtx, ob->obmat, obinv);
 183                                                 Mat4Invert(imtx, mtx);
 184                                         }
 185
 186                                         for(i = 0 ; i < t->total; i++, td++) {
 187                                                 int clip;
 188                                                 float loc[3], iloc[3];
 189
 190                                                 if (td->flag & TD_NOACTION)
 191                                                         break;
 192                                                 if (td->loc==NULL)
 193                                                         break;
 194
 195                                                 if (td->flag & TD_SKIP)
 196                                                         continue;
 197
 198                                                 VecCopyf(loc,  td->loc);
 199                                                 VecCopyf(iloc, td->iloc);
 200
 201                                                 if (mmd->mirror_ob) {
 202                                                         VecMat4MulVecfl(loc, mtx, loc);
 203                                                         VecMat4MulVecfl(iloc, mtx, iloc);
 204                                                 }
 205
 206                                                 clip = 0;
 207                                                 if(axis & 1) {
 208                                                         if(fabs(iloc[0])<=tolerance[0] ||
 209                                                            loc[0]*iloc[0]<0.0f) {
 210                                                                 loc[0]= 0.0f;
 211                                                                 clip = 1;
 212                                                         }
 213                                                 }
 214
 215                                                 if(axis & 2) {
 216                                                         if(fabs(iloc[1])<=tolerance[1] ||
 217                                                            loc[1]*iloc[1]<0.0f) {
 218                                                                 loc[1]= 0.0f;
 219                                                                 clip = 1;
 220                                                         }
 221                                                 }
 222                                                 if(axis & 4) {
 223                                                         if(fabs(iloc[2])<=tolerance[2] ||
 224                                                            loc[2]*iloc[2]<0.0f) {
 225                                                                 loc[2]= 0.0f;
 226                                                                 clip = 1;
 227                                                         }
 228                                                 }
 229                                                 if (clip) {
 230                                                         if (mmd->mirror_ob) {
 231                                                                 VecMat4MulVecfl(loc, imtx, loc);
 232                                                         }
 233                                                         VecCopyf(td->loc, loc);
 234                                                 }
 235                                         }
 236                                 }
 237
 238                         }
 239                 }
 240         }
 241 }
 242
 243 /* assumes obedit set to mesh object */
 244 static void editmesh_apply_to_mirror(TransInfo *t)
 245 {
 246         TransData *td = t->data;
 247         EditVert *eve;
 248         int i;
 249
 250         for(i = 0 ; i < t->total; i++, td++) {
 251                 if (td->flag & TD_NOACTION)
 252                         break;
 253                 if (td->loc==NULL)
 254                         break;
 255                 if (td->flag & TD_SKIP)
 256                         continue;
 257
 258                 eve = td->extra;
 259                 if(eve) {
 260                         eve->co[0]= -td->loc[0];
 261                         eve->co[1]= td->loc[1];
 262                         eve->co[2]= td->loc[2];
 263                 }
 264         }
 265 }
 266
 267 /* called for updating while transform acts, once per redraw */
 268 void recalcData(TransInfo *t)
 269 {
 270         Scene *scene = t->scene;
 271         Base *base;
 272
 273         if (t->obedit) {
 274         }
 275         else if(G.f & G_PARTICLEEDIT) {
 276                 flushTransParticles(t);
 277         }
 278         if (t->spacetype==SPACE_NODE) {
 279                 flushTransNodes(t);
 280         }
 281         else if (t->spacetype==SPACE_SEQ) {
 282                 flushTransSeq(t);
 283         }
 284         else if (t->spacetype == SPACE_IPO) {
 285                 SpaceIpo *sipo= (SpaceIpo *)t->sa->spacedata.first;
 286                 Scene *scene;
 287
 288                 ListBase anim_data = {NULL, NULL};
 289                 bAnimContext ac;
 290                 int filter;
 291
 292                 bAnimListElem *ale;
 293                 int dosort = 0;
 294
 295
 296                 /* initialise relevant anim-context 'context' data from TransInfo data */
 297                         /* NOTE: sync this with the code in ANIM_animdata_get_context() */
 298                 memset(&ac, 0, sizeof(bAnimContext));
 299
 300                 scene= ac.scene= t->scene;
 301                 ac.obact= OBACT;
 302                 ac.sa= t->sa;
 303                 ac.ar= t->ar;
 304                 ac.spacetype= (t->sa)? t->sa->spacetype : 0;
 305                 ac.regiontype= (t->ar)? t->ar->regiontype : 0;
 306
 307                 ANIM_animdata_context_getdata(&ac);
 308
 309                 /* do the flush first */
 310                 flushTransGraphData(t);
 311
 312                 /* get curves to check if a re-sort is needed */
 313                 filter= (ANIMFILTER_VISIBLE | ANIMFILTER_FOREDIT | ANIMFILTER_CURVESONLY | ANIMFILTER_CURVEVISIBLE);
 314                 ANIM_animdata_filter(&ac, &anim_data, filter, ac.data, ac.datatype);
 315
 316                 /* now test if there is a need to re-sort */
 317                 for (ale= anim_data.first; ale; ale= ale->next) {
 318                         FCurve *fcu= (FCurve *)ale->key_data;
 319
 320                         /* watch it: if the time is wrong: do not correct handles yet */
 321                         if (test_time_fcurve(fcu))
 322                                 dosort++;
 323                         else
 324                                 calchandles_fcurve(fcu);
 325                 }
 326
 327                 /* do resort and other updates? */
 328                 if (dosort) remake_graph_transdata(t, &anim_data);
 329                 //if (sipo->showkey) update_ipokey_val();
 330
 331                 /* now free temp channels */
 332                 BLI_freelistN(&anim_data);
 333
 334                 /* update realtime - not working? */
 335                 if (sipo->lock) {
 336
 337                 }
 338         }
 339         else if (t->spacetype == SPACE_NLA) {
 340                 TransDataNla *tdn= (TransDataNla *)t->customData;
 341                 SpaceNla *snla= (SpaceNla *)t->sa->spacedata.first;
 342                 Scene *scene= t->scene;
 343                 double secf= FPS;
 344                 int i;
 345
 346                 /* for each strip we've got, perform some additional validation of the values that got set before
 347                  * using RNA to set the value (which does some special operations when setting these values to make
 348                  * sure that everything works ok)
 349                  */
 350                 for (i = 0; i < t->total; i++, tdn++) {
 351                         NlaStrip *strip= tdn->strip;
 352                         PointerRNA strip_ptr;
 353                         short pExceeded, nExceeded, iter;
 354                         int delta_y1, delta_y2;
 355
 356                         /* if this tdn has no handles, that means it is just a dummy that should be skipped */
 357                         if (tdn->handle == 0)
 358                                 continue;
 359
 360                         /* if cancelling transform, just write the values without validating, then move on */
 361                         if (t->state == TRANS_CANCEL) {
 362                                 /* clear the values by directly overwriting the originals, but also need to restore
 363                                  * endpoints of neighboring transition-strips
 364                                  */
 365
 366                                 /* start */
 367                                 strip->start= tdn->h1[0];
 368
 369                                 if ((strip->prev) && (strip->prev->type == NLASTRIP_TYPE_TRANSITION))
 370                                         strip->prev->end= tdn->h1[0];
 371
 372                                 /* end */
 373                                 strip->end= tdn->h2[0];
 374
 375                                 if ((strip->next) && (strip->next->type == NLASTRIP_TYPE_TRANSITION))
 376                                         strip->next->start= tdn->h2[0];
 377
 378                                 /* flush transforms to child strips (since this should be a meta) */
 379                                 BKE_nlameta_flush_transforms(strip);
 380
 381                                 /* restore to original track (if needed) */
 382                                 if (tdn->oldTrack != tdn->nlt) {
 383                                         /* just append to end of list for now, since strips get sorted in special_aftertrans_update() */
 384                                         BLI_remlink(&tdn->nlt->strips, strip);
 385                                         BLI_addtail(&tdn->oldTrack->strips, strip);
 386                                 }
 387
 388                                 continue;
 389                         }
 390
 391                         /* firstly, check if the proposed transform locations would overlap with any neighbouring strips
 392                          * (barring transitions) which are absolute barriers since they are not being moved
 393                          *
 394                          * this is done as a iterative procedure (done 5 times max for now)
 395                          */
 396                         for (iter=0; iter < 5; iter++) {
 397                                 pExceeded= ((strip->prev) && (strip->prev->type != NLASTRIP_TYPE_TRANSITION) && (tdn->h1[0] < strip->prev->end));
 398                                 nExceeded= ((strip->next) && (strip->next->type != NLASTRIP_TYPE_TRANSITION) && (tdn->h2[0] > strip->next->start));
 399
 400                                 if ((pExceeded && nExceeded) || (iter == 4) ) {
 401                                         /* both endpoints exceeded (or iteration ping-pong'd meaning that we need a compromise)
 402                                          *      - simply crop strip to fit within the bounds of the strips bounding it
 403                                          *      - if there were no neighbours, clear the transforms (make it default to the strip's current values)
 404                                          */
 405                                         if (strip->prev && strip->next) {
 406                                                 tdn->h1[0]= strip->prev->end;
 407                                                 tdn->h2[0]= strip->next->start;
 408                                         }
 409                                         else {
 410                                                 tdn->h1[0]= strip->start;
 411                                                 tdn->h2[0]= strip->end;
 412                                         }
 413                                 }
 414                                 else if (nExceeded) {
 415                                         /* move backwards */
 416                                         float offset= tdn->h2[0] - strip->next->start;
 417
 418                                         tdn->h1[0] -= offset;
 419                                         tdn->h2[0] -= offset;
 420                                 }
 421                                 else if (pExceeded) {
 422                                         /* more forwards */
 423                                         float offset= strip->prev->end - tdn->h1[0];
 424
 425                                         tdn->h1[0] += offset;
 426                                         tdn->h2[0] += offset;
 427                                 }
 428                                 else /* all is fine and well */
 429                                         break;
 430                         }
 431
 432                         /* handle auto-snapping */
 433                         switch (snla->autosnap) {
 434                                 case SACTSNAP_FRAME: /* snap to nearest frame/time  */
 435                                         if (snla->flag & SNLA_DRAWTIME) {
 436                                                 tdn->h1[0]= (float)( floor((tdn->h1[0]/secf) + 0.5f) * secf );
 437                                                 tdn->h2[0]= (float)( floor((tdn->h2[0]/secf) + 0.5f) * secf );
 438                                         }
 439                                         else {
 440                                                 tdn->h1[0]= (float)( floor(tdn->h1[0]+0.5f) );
 441                                                 tdn->h2[0]= (float)( floor(tdn->h2[0]+0.5f) );
 442                                         }
 443                                         break;
 444
 445                                 case SACTSNAP_MARKER: /* snap to nearest marker */
 446                                         tdn->h1[0]= (float)ED_markers_find_nearest_marker_time(&t->scene->markers, tdn->h1[0]);
 447                                         tdn->h2[0]= (float)ED_markers_find_nearest_marker_time(&t->scene->markers, tdn->h2[0]);
 448                                         break;
 449                         }
 450
 451                         /* use RNA to write the values... */
 452                         // TODO: do we need to write in 2 passes to make sure that no truncation goes on?
 453                         RNA_pointer_create(NULL, &RNA_NlaStrip, strip, &strip_ptr);
 454
 455                         RNA_float_set(&strip_ptr, "start_frame", tdn->h1[0]);
 456                         RNA_float_set(&strip_ptr, "end_frame", tdn->h2[0]);
 457
 458                         /* flush transforms to child strips (since this should be a meta) */
 459                         BKE_nlameta_flush_transforms(strip);
 460
 461
 462                         /* now, check if we need to try and move track
 463                          *      - we need to calculate both, as only one may have been altered by transform if only 1 handle moved
 464                          */
 465                         delta_y1= ((int)tdn->h1[1] / NLACHANNEL_STEP - tdn->trackIndex);
 466                         delta_y2= ((int)tdn->h2[1] / NLACHANNEL_STEP - tdn->trackIndex);
 467
 468                         if (delta_y1 || delta_y2) {
 469                                 NlaTrack *track;
 470                                 int delta = (delta_y2) ? delta_y2 : delta_y1;
 471                                 int n;
 472
 473                                 /* move in the requested direction, checking at each layer if there's space for strip to pass through,
 474                                  * stopping on the last track available or that we're able to fit in
 475                                  */
 476                                 if (delta > 0) {
 477                                         for (track=tdn->nlt->next, n=0; (track) && (n < delta); track=track->next, n++) {
 478                                                 /* check if space in this track for the strip */
 479                                                 if (BKE_nlatrack_has_space(track, strip->start, strip->end)) {
 480                                                         /* move strip to this track */
 481                                                         BLI_remlink(&tdn->nlt->strips, strip);
 482                                                         BKE_nlatrack_add_strip(track, strip);
 483
 484                                                         tdn->nlt= track;
 485                                                         tdn->trackIndex += (n + 1); /* + 1, since n==0 would mean that we didn't change track */
 486                                                 }
 487                                                 else /* can't move any further */
 488                                                         break;
 489                                         }
 490                                 }
 491                                 else {
 492                                         /* make delta 'positive' before using it, since we now know to go backwards */
 493                                         delta= -delta;
 494
 495                                         for (track=tdn->nlt->prev, n=0; (track) && (n < delta); track=track->prev, n++) {
 496                                                 /* check if space in this track for the strip */
 497                                                 if (BKE_nlatrack_has_space(track, strip->start, strip->end)) {
 498                                                         /* move strip to this track */
 499                                                         BLI_remlink(&tdn->nlt->strips, strip);
 500                                                         BKE_nlatrack_add_strip(track, strip);
 501
 502                                                         tdn->nlt= track;
 503                                                         tdn->trackIndex -= (n - 1); /* - 1, since n==0 would mean that we didn't change track */
 504                                                 }
 505                                                 else /* can't move any further */
 506                                                         break;
 507                                         }
 508                                 }
 509                         }
 510                 }
 511         }
 512         else if (t->obedit) {
 513                 if ELEM(t->obedit->type, OB_CURVE, OB_SURF) {
 514                         Curve *cu= t->obedit->data;
 515                         Nurb *nu= cu->editnurb->first;
 516
 517                         DAG_object_flush_update(scene, t->obedit, OB_RECALC_DATA);  /* sets recalc flags */
 518
 519                         if (t->state == TRANS_CANCEL) {
 520                                 while(nu) {
 521                                         calchandlesNurb(nu); /* Cant do testhandlesNurb here, it messes up the h1 and h2 flags */
 522                                         nu= nu->next;
 523                                 }
 524                         } else {
 525                                 /* Normal updating */
 526                                 while(nu) {
 527                                         test2DNurb(nu);
 528                                         calchandlesNurb(nu);
 529                                         nu= nu->next;
 530                                 }
 531                                 /* TRANSFORM_FIX_ME */
 532                                 // retopo_do_all();
 533                         }
 534                 }
 535                 else if(t->obedit->type==OB_LATTICE) {
 536                         Lattice *la= t->obedit->data;
 537                         DAG_object_flush_update(scene, t->obedit, OB_RECALC_DATA);  /* sets recalc flags */
 538
 539                         if(la->editlatt->flag & LT_OUTSIDE) outside_lattice(la->editlatt);
 540                 }
 541                 else if (t->obedit->type == OB_MESH) {
 542                         if(t->spacetype==SPACE_IMAGE) {
 543                                 SpaceImage *sima= t->sa->spacedata.first;
 544
 545                                 flushTransUVs(t);
 546                                 if(sima->flag & SI_LIVE_UNWRAP)
 547                                         ED_uvedit_live_unwrap_re_solve();
 548
 549                                 DAG_object_flush_update(scene, t->obedit, OB_RECALC_DATA);
 550                         } else {
 551                                 EditMesh *em = ((Mesh*)t->obedit->data)->edit_mesh;
 552                                 /* mirror modifier clipping? */
 553                                 if(t->state != TRANS_CANCEL) {
 554                                         /* TRANSFORM_FIX_ME */
 555 //                                      if ((G.qual & LR_CTRLKEY)==0) {
 556 //                                              /* Only retopo if not snapping, Note, this is the only case of G.qual being used, but we have no T_SHIFT_MOD - Campbell */
 557 //                                              retopo_do_all();
 558 //                                      }
 559                                         clipMirrorModifier(t, t->obedit);
 560                                 }
 561                                 if((t->options & CTX_NO_MIRROR) == 0 && (t->flag & T_MIRROR))
 562                                         editmesh_apply_to_mirror(t);
 563
 564                                 DAG_object_flush_update(scene, t->obedit, OB_RECALC_DATA);  /* sets recalc flags */
 565
 566                                 recalc_editnormals(em);
 567                         }
 568                 }
 569                 else if(t->obedit->type==OB_ARMATURE) { /* no recalc flag, does pose */
 570                         bArmature *arm= t->obedit->data;
 571                         ListBase *edbo = arm->edbo;
 572                         EditBone *ebo;
 573                         TransData *td = t->data;
 574                         int i;
 575
 576                         /* Ensure all bones are correctly adjusted */
 577                         for (ebo = edbo->first; ebo; ebo = ebo->next){
 578
 579                                 if ((ebo->flag & BONE_CONNECTED) && ebo->parent){
 580                                         /* If this bone has a parent tip that has been moved */
 581                                         if (ebo->parent->flag & BONE_TIPSEL){
 582                                                 VECCOPY (ebo->head, ebo->parent->tail);
 583                                                 if(t->mode==TFM_BONE_ENVELOPE) ebo->rad_head= ebo->parent->rad_tail;
 584                                         }
 585                                         /* If this bone has a parent tip that has NOT been moved */
 586                                         else{
 587                                                 VECCOPY (ebo->parent->tail, ebo->head);
 588                                                 if(t->mode==TFM_BONE_ENVELOPE) ebo->parent->rad_tail= ebo->rad_head;
 589                                         }
 590                                 }
 591
 592                                 /* on extrude bones, oldlength==0.0f, so we scale radius of points */
 593                                 ebo->length= VecLenf(ebo->head, ebo->tail);
 594                                 if(ebo->oldlength==0.0f) {
 595                                         ebo->rad_head= 0.25f*ebo->length;
 596                                         ebo->rad_tail= 0.10f*ebo->length;
 597                                         ebo->dist= 0.25f*ebo->length;
 598                                         if(ebo->parent) {
 599                                                 if(ebo->rad_head > ebo->parent->rad_tail)
 600                                                         ebo->rad_head= ebo->parent->rad_tail;
 601                                         }
 602                                 }
 603                                 else if(t->mode!=TFM_BONE_ENVELOPE) {
 604                                         /* if bones change length, lets do that for the deform distance as well */
 605                                         ebo->dist*= ebo->length/ebo->oldlength;
 606                                         ebo->rad_head*= ebo->length/ebo->oldlength;
 607                                         ebo->rad_tail*= ebo->length/ebo->oldlength;
 608                                         ebo->oldlength= ebo->length;
 609                                 }
 610                         }
 611
 612
 613                         if (t->mode != TFM_BONE_ROLL)
 614                         {
 615                                 /* fix roll */
 616                                 for(i = 0; i < t->total; i++, td++)
 617                                 {
 618                                         if (td->extra)
 619                                         {
 620                                                 float vec[3], up_axis[3];
 621                                                 float qrot[4];
 622
 623                                                 ebo = td->extra;
 624                                                 VECCOPY(up_axis, td->axismtx[2]);
 625
 626                                                 if (t->mode != TFM_ROTATION)
 627                                                 {
 628                                                         VecSubf(vec, ebo->tail, ebo->head);
 629                                                         Normalize(vec);
 630                                                         RotationBetweenVectorsToQuat(qrot, td->axismtx[1], vec);
 631                                                         QuatMulVecf(qrot, up_axis);
 632                                                 }
 633                                                 else
 634                                                 {
 635                                                         Mat3MulVecfl(t->mat, up_axis);
 636                                                 }
 637
 638                                                 ebo->roll = ED_rollBoneToVector(ebo, up_axis);
 639                                         }
 640                                 }
 641                         }
 642
 643                         if(arm->flag & ARM_MIRROR_EDIT)
 644                                 transform_armature_mirror_update(t->obedit);
 645
 646                 }
 647                 else
 648                         DAG_object_flush_update(scene, t->obedit, OB_RECALC_DATA);  /* sets recalc flags */
 649         }
 650         else if( (t->flag & T_POSE) && t->poseobj) {
 651                 Object *ob= t->poseobj;
 652                 bArmature *arm= ob->data;
 653
 654                 /* if animtimer is running, and the object already has animation data,
 655                  * check if the auto-record feature means that we should record 'samples'
 656                  * (i.e. uneditable animation values)
 657                  */
 658                 // TODO: autokeyframe calls need some setting to specify to add samples (FPoints) instead of keyframes?
 659                 // TODO: maybe the ob->adt check isn't really needed? makes it too difficult to use...
 660                 if (/*(ob->adt) && */(t->animtimer) && IS_AUTOKEY_ON(t->scene)) {
 661                         short targetless_ik= (t->flag & T_AUTOIK); // XXX this currently doesn't work, since flags aren't set yet!
 662                         autokeyframe_pose_cb_func(t->scene, (View3D *)t->view, ob, t->mode, targetless_ik);
 663                 }
 664
 665                 /* old optimize trick... this enforces to bypass the depgraph */
 666                 if (!(arm->flag & ARM_DELAYDEFORM)) {
 667                         DAG_object_flush_update(scene, ob, OB_RECALC_DATA);  /* sets recalc flags */
 668                 }
 669                 else
 670                         where_is_pose(scene, ob);
 671         }
 672         else {
 673                 for(base= FIRSTBASE; base; base= base->next) {
 674                         Object *ob= base->object;
 675
 676                         /* this flag is from depgraph, was stored in initialize phase, handled in drawview.c */
 677                         if(base->flag & BA_HAS_RECALC_OB)
 678                                 ob->recalc |= OB_RECALC_OB;
 679                         if(base->flag & BA_HAS_RECALC_DATA)
 680                                 ob->recalc |= OB_RECALC_DATA;
 681
 682                         /* if object/base is selected */
 683                         if ((base->flag & SELECT) || (ob->flag & SELECT)) {
 684                                 /* if animtimer is running, and the object already has animation data,
 685                                  * check if the auto-record feature means that we should record 'samples'
 686                                  * (i.e. uneditable animation values)
 687                                  */
 688                                 // TODO: autokeyframe calls need some setting to specify to add samples (FPoints) instead of keyframes?
 689                                 // TODO: maybe the ob->adt check isn't really needed? makes it too difficult to use...
 690                                 if (/*(ob->adt) && */(t->animtimer) && IS_AUTOKEY_ON(t->scene)) {
 691                                         autokeyframe_ob_cb_func(t->scene, (View3D *)t->view, ob, t->mode);
 692                                 }
 693                         }
 694
 695                         /* proxy exception */
 696                         if(ob->proxy)
 697                                 ob->proxy->recalc |= ob->recalc;
 698                         if(ob->proxy_group)
 699                                 group_tag_recalc(ob->proxy_group->dup_group);
 700                 }
 701         }
 702
 703         /* update shaded drawmode while transform */
 704         if(t->spacetype==SPACE_VIEW3D && ((View3D*)t->view)->drawtype == OB_SHADED)
 705                 reshadeall_displist(t->scene);
 706 }
 707
 708 void drawLine(TransInfo *t, float *center, float *dir, char axis, short options)
 709 {
 710         float v1[3], v2[3], v3[3];
 711         char col[3], col2[3];
 712
 713         if (t->spacetype == SPACE_VIEW3D)
 714         {
 715                 View3D *v3d = t->view;
 716
 717                 glPushMatrix();
 718
 719                 //if(t->obedit) glLoadMatrixf(t->obedit->obmat);        // sets opengl viewing
 720
 721
 722                 VecCopyf(v3, dir);
 723                 VecMulf(v3, v3d->far);
 724
 725                 VecSubf(v2, center, v3);
 726                 VecAddf(v1, center, v3);
 727
 728                 if (options & DRAWLIGHT) {
 729                         col[0] = col[1] = col[2] = 220;
 730                 }
 731                 else {
 732                         UI_GetThemeColor3ubv(TH_GRID, col);
 733                 }
 734                 UI_make_axis_color(col, col2, axis);
 735                 glColor3ubv((GLubyte *)col2);
 736
 737                 setlinestyle(0);
 738                 glBegin(GL_LINE_STRIP);
 739                         glVertex3fv(v1);
 740                         glVertex3fv(v2);
 741                 glEnd();
 742
 743                 glPopMatrix();
 744         }
 745 }
 746
 747 void resetTransRestrictions(TransInfo *t)
 748 {
 749         t->flag &= ~T_ALL_RESTRICTIONS;
 750 }
 751
 752 int initTransInfo (bContext *C, TransInfo *t, wmOperator *op, wmEvent *event)
 753 {
 754         Scene *sce = CTX_data_scene(C);
 755         ToolSettings *ts = CTX_data_tool_settings(C);
 756         ARegion *ar = CTX_wm_region(C);
 757         ScrArea *sa = CTX_wm_area(C);
 758         Object *obedit = CTX_data_edit_object(C);
 759
 760         /* moving: is shown in drawobject() (transform color) */
 761 //  TRANSFORM_FIX_ME
 762 //      if(obedit || (t->flag & T_POSE) ) G.moving= G_TRANSFORM_EDIT;
 763 //      else if(G.f & G_PARTICLEEDIT) G.moving= G_TRANSFORM_PARTICLE;
 764 //      else G.moving= G_TRANSFORM_OBJ;
 765
 766         t->scene = sce;
 767         t->sa = sa;
 768         t->ar = ar;
 769         t->obedit = obedit;
 770         t->settings = ts;
 771
 772         t->data = NULL;
 773         t->ext = NULL;
 774
 775         t->helpline = HLP_NONE;
 776
 777         t->flag = 0;
 778
 779         t->redraw = 1; /* redraw first time */
 780
 781         if (event)
 782         {
 783                 t->imval[0] = event->x - t->ar->winrct.xmin;
 784                 t->imval[1] = event->y - t->ar->winrct.ymin;
 785
 786                 t->event_type = event->type;
 787         }
 788         else
 789         {
 790                 t->imval[0] = 0;
 791                 t->imval[1] = 0;
 792         }
 793
 794         t->con.imval[0] = t->imval[0];
 795         t->con.imval[1] = t->imval[1];
 796
 797         t->mval[0] = t->imval[0];
 798         t->mval[1] = t->imval[1];
 799
 800         t->transform            = NULL;
 801         t->handleEvent          = NULL;
 802
 803         t->total                        = 0;
 804
 805         t->val = 0.0f;
 806
 807         t->vec[0]                       =
 808                 t->vec[1]               =
 809                 t->vec[2]               = 0.0f;
 810
 811         t->center[0]            =
 812                 t->center[1]    =
 813                 t->center[2]    = 0.0f;
 814
 815         Mat3One(t->mat);
 816
 817         t->spacetype = sa->spacetype;
 818         if(t->spacetype == SPACE_VIEW3D)
 819         {
 820                 View3D *v3d = sa->spacedata.first;
 821
 822                 t->view = v3d;
 823                 t->animtimer= CTX_wm_screen(C)->animtimer;
 824
 825                 if(v3d->flag & V3D_ALIGN) t->flag |= T_V3D_ALIGN;
 826                 t->around = v3d->around;
 827
 828                 if (op && RNA_struct_find_property(op->ptr, "constraint_axis") && RNA_property_is_set(op->ptr, "constraint_orientation"))
 829                 {
 830                         t->current_orientation = RNA_int_get(op->ptr, "constraint_orientation");
 831
 832                         if (t->current_orientation >= V3D_MANIP_CUSTOM + BIF_countTransformOrientation(C) - 1)
 833                         {
 834                                 t->current_orientation = V3D_MANIP_GLOBAL;
 835                         }
 836                 }
 837                 else
 838                 {
 839                         t->current_orientation = v3d->twmode;
 840                 }
 841         }
 842         else if(t->spacetype==SPACE_IMAGE || t->spacetype==SPACE_NODE)
 843         {
 844                 SpaceImage *sima = sa->spacedata.first;
 845                 // XXX for now, get View2D  from the active region
 846                 t->view = &ar->v2d;
 847                 t->around = sima->around;
 848         }
 849         else
 850         {
 851                 // XXX for now, get View2D  from the active region
 852                 t->view = &ar->v2d;
 853
 854                 t->around = V3D_CENTER;
 855         }
 856
 857         if (op && RNA_struct_find_property(op->ptr, "mirror") && RNA_property_is_set(op->ptr, "mirror"))
 858         {
 859                 if (RNA_boolean_get(op->ptr, "mirror"))
 860                 {
 861                         t->flag |= T_MIRROR;
 862                 }
 863         }
 864         // Need stuff to take it from edit mesh or whatnot here
 865         else
 866         {
 867                 if (t->obedit && t->obedit->type == OB_MESH && ts->editbutflag & B_MESH_X_MIRROR)
 868                 {
 869                         t->flag |= T_MIRROR;
 870                 }
 871         }
 872
 873         /* setting PET flag */
 874         if (op && RNA_struct_find_property(op->ptr, "proportional") && RNA_property_is_set(op->ptr, "proportional"))
 875         {
 876                 switch(RNA_enum_get(op->ptr, "proportional"))
 877                 {
 878                 case 2: /* XXX connected constant */
 879                         t->flag |= T_PROP_CONNECTED;
 880                 case 1: /* XXX prop on constant */
 881                         t->flag |= T_PROP_EDIT;
 882                         break;
 883                 }
 884         }
 885         else
 886         {
 887                 if ((t->options & CTX_NO_PET) == 0 && (ts->proportional)) {
 888                         t->flag |= T_PROP_EDIT;
 889
 890                         if(ts->proportional == 2)
 891                                 t->flag |= T_PROP_CONNECTED;    // yes i know, has to become define
 892                 }
 893         }
 894
 895         if (op && RNA_struct_find_property(op->ptr, "proportional_size") && RNA_property_is_set(op->ptr, "proportional_size"))
 896         {
 897                 t->prop_size = RNA_float_get(op->ptr, "proportional_size");
 898         }
 899         else
 900         {
 901                 t->prop_size = ts->proportional_size;
 902         }
 903
 904         if (op && RNA_struct_find_property(op->ptr, "proportional_editing_falloff") && RNA_property_is_set(op->ptr, "proportional_editing_falloff"))
 905         {
 906                 t->prop_mode = RNA_enum_get(op->ptr, "proportional_editing_falloff");
 907         }
 908         else
 909         {
 910                 t->prop_mode = ts->prop_mode;
 911         }
 912
 913         /* TRANSFORM_FIX_ME rna restrictions */
 914         if (t->prop_size <= 0)
 915         {
 916                 t->prop_size = 1.0f;
 917         }
 918
 919         setTransformViewMatrices(t);
 920         initNumInput(&t->num);
 921         initNDofInput(&t->ndof);
 922
 923         return 1;
 924 }
 925
 926 /* Here I would suggest only TransInfo related issues, like free data & reset vars. Not redraws */
 927 void postTrans (TransInfo *t)
 928 {
 929         TransData *td;
 930
 931         if (t->draw_handle)
 932         {
 933                 ED_region_draw_cb_exit(t->ar->type, t->draw_handle);
 934         }
 935
 936         /* postTrans can be called when nothing is selected, so data is NULL already */
 937         if (t->data) {
 938                 int a;
 939
 940                 /* since ipokeys are optional on objects, we mallocced them per trans-data */
 941                 for(a=0, td= t->data; a<t->total; a++, td++) {
 942                         if(td->tdi) MEM_freeN(td->tdi);
 943                         if (td->flag & TD_BEZTRIPLE) MEM_freeN(td->hdata);
 944                 }
 945                 MEM_freeN(t->data);
 946         }
 947
 948         if (t->ext) MEM_freeN(t->ext);
 949         if (t->data2d) {
 950                 MEM_freeN(t->data2d);
 951                 t->data2d= NULL;
 952         }
 953
 954         if(t->spacetype==SPACE_IMAGE) {
 955                 SpaceImage *sima= t->sa->spacedata.first;
 956                 if(sima->flag & SI_LIVE_UNWRAP)
 957                         ED_uvedit_live_unwrap_end(t->state == TRANS_CANCEL);
 958         }
 959         else if(ELEM(t->spacetype, SPACE_ACTION, SPACE_NLA)) {
 960                 if (t->customData)
 961                         MEM_freeN(t->customData);
 962         }
 963 }
 964
 965 void applyTransObjects(TransInfo *t)
 966 {
 967         TransData *td;
 968
 969         for (td = t->data; td < t->data + t->total; td++) {
 970                 VECCOPY(td->iloc, td->loc);
 971                 if (td->ext->rot) {
 972                         VECCOPY(td->ext->irot, td->ext->rot);
 973                 }
 974                 if (td->ext->size) {
 975                         VECCOPY(td->ext->isize, td->ext->size);
 976                 }
 977         }
 978         recalcData(t);
 979 }
 980
 981 /* helper for below */
 982 static void restore_ipokey(float *poin, float *old)
 983 {
 984         if(poin) {
 985                 poin[0]= old[0];
 986                 poin[-3]= old[3];
 987                 poin[3]= old[6];
 988         }
 989 }
 990
 991 static void restoreElement(TransData *td) {
 992         /* TransData for crease has no loc */
 993         if (td->loc) {
 994                 VECCOPY(td->loc, td->iloc);
 995         }
 996         if (td->val) {
 997                 *td->val = td->ival;
 998         }
 999         if (td->ext && (td->flag&TD_NO_EXT)==0) {
1000                 if (td->ext->rot) {
1001                         VECCOPY(td->ext->rot, td->ext->irot);
1002                 }
1003                 if (td->ext->size) {
1004                         VECCOPY(td->ext->size, td->ext->isize);
1005                 }
1006                 if(td->flag & TD_USEQUAT) {
1007                         if (td->ext->quat) {
1008                                 QUATCOPY(td->ext->quat, td->ext->iquat);
1009                         }
1010                 }
1011         }
1012
1013         if (td->flag & TD_BEZTRIPLE) {
1014                 *(td->hdata->h1) = td->hdata->ih1;
1015                 *(td->hdata->h2) = td->hdata->ih2;
1016         }
1017
1018         if(td->tdi) {
1019                 TransDataIpokey *tdi= td->tdi;
1020
1021                 restore_ipokey(tdi->locx, tdi->oldloc);
1022                 restore_ipokey(tdi->locy, tdi->oldloc+1);
1023                 restore_ipokey(tdi->locz, tdi->oldloc+2);
1024
1025                 restore_ipokey(tdi->rotx, tdi->oldrot);
1026                 restore_ipokey(tdi->roty, tdi->oldrot+1);
1027                 restore_ipokey(tdi->rotz, tdi->oldrot+2);
1028
1029                 restore_ipokey(tdi->sizex, tdi->oldsize);
1030                 restore_ipokey(tdi->sizey, tdi->oldsize+1);
1031                 restore_ipokey(tdi->sizez, tdi->oldsize+2);
1032         }
1033 }
1034
1035 void restoreTransObjects(TransInfo *t)
1036 {
1037         TransData *td;
1038
1039         for (td = t->data; td < t->data + t->total; td++) {
1040                 restoreElement(td);
1041         }
1042
1043         Mat3One(t->mat);
1044
1045         recalcData(t);
1046 }
1047
1048 void calculateCenter2D(TransInfo *t)
1049 {
1050         if (t->flag & (T_EDIT|T_POSE)) {
1051                 Object *ob= t->obedit?t->obedit:t->poseobj;
1052                 float vec[3];
1053
1054                 VECCOPY(vec, t->center);
1055                 Mat4MulVecfl(ob->obmat, vec);
1056                 projectIntView(t, vec, t->center2d);
1057         }
1058         else {
1059                 projectIntView(t, t->center, t->center2d);
1060         }
1061 }
1062
1063 void calculateCenterCursor(TransInfo *t)
1064 {
1065         float *cursor;
1066
1067         cursor = give_cursor(t->scene, t->view);
1068         VECCOPY(t->center, cursor);
1069
1070         /* If edit or pose mode, move cursor in local space */
1071         if (t->flag & (T_EDIT|T_POSE)) {
1072                 Object *ob = t->obedit?t->obedit:t->poseobj;
1073                 float mat[3][3], imat[3][3];
1074
1075                 VecSubf(t->center, t->center, ob->obmat[3]);
1076                 Mat3CpyMat4(mat, ob->obmat);
1077                 Mat3Inv(imat, mat);
1078                 Mat3MulVecfl(imat, t->center);
1079         }
1080
1081         calculateCenter2D(t);
1082 }
1083
1084 void calculateCenterCursor2D(TransInfo *t)
1085 {
1086         View2D *v2d= t->view;
1087         float aspx=1.0, aspy=1.0;
1088
1089         if(t->spacetype==SPACE_IMAGE) /* only space supported right now but may change */
1090                 ED_space_image_uv_aspect(t->sa->spacedata.first, &aspx, &aspy);
1091
1092         if (v2d) {
1093                 t->center[0] = v2d->cursor[0] * aspx;
1094                 t->center[1] = v2d->cursor[1] * aspy;
1095         }
1096
1097         calculateCenter2D(t);
1098 }
1099
1100 void calculateCenterMedian(TransInfo *t)
1101 {
1102         float partial[3] = {0.0f, 0.0f, 0.0f};
1103         int total = 0;
1104         int i;
1105
1106         for(i = 0; i < t->total; i++) {
1107                 if (t->data[i].flag & TD_SELECTED) {
1108                         if (!(t->data[i].flag & TD_NOCENTER))
1109                         {
1110                                 VecAddf(partial, partial, t->data[i].center);
1111                                 total++;
1112                         }
1113                 }
1114                 else {
1115                         /*
1116                            All the selected elements are at the head of the array
1117                            which means we can stop when it finds unselected data
1118                         */
1119                         break;
1120                 }
1121         }
1122         if(i)
1123                 VecMulf(partial, 1.0f / total);
1124         VECCOPY(t->center, partial);
1125
1126         calculateCenter2D(t);
1127 }
1128
1129 void calculateCenterBound(TransInfo *t)
1130 {
1131         float max[3];
1132         float min[3];
1133         int i;
1134         for(i = 0; i < t->total; i++) {
1135                 if (i) {
1136                         if (t->data[i].flag & TD_SELECTED) {
1137                                 if (!(t->data[i].flag & TD_NOCENTER))
1138                                         MinMax3(min, max, t->data[i].center);
1139                         }
1140                         else {
1141                                 /*
1142                                    All the selected elements are at the head of the array
1143                                    which means we can stop when it finds unselected data
1144                                 */
1145                                 break;
1146                         }
1147                 }
1148                 else {
1149                         VECCOPY(max, t->data[i].center);
1150                         VECCOPY(min, t->data[i].center);
1151                 }
1152         }
1153         VecAddf(t->center, min, max);
1154         VecMulf(t->center, 0.5);
1155
1156         calculateCenter2D(t);
1157 }
1158
1159 void calculateCenter(TransInfo *t)
1160 {
1161         switch(t->around) {
1162         case V3D_CENTER:
1163                 calculateCenterBound(t);
1164                 break;
1165         case V3D_CENTROID:
1166                 calculateCenterMedian(t);
1167                 break;
1168         case V3D_CURSOR:
1169                 if(t->spacetype==SPACE_IMAGE)
1170                         calculateCenterCursor2D(t);
1171                 else
1172                         calculateCenterCursor(t);
1173                 break;
1174         case V3D_LOCAL:
1175                 /* Individual element center uses median center for helpline and such */
1176                 calculateCenterMedian(t);
1177                 break;
1178         case V3D_ACTIVE:
1179                 {
1180                 /* set median, and if if if... do object center */
1181 #if 0 // TRANSFORM_FIX_ME
1182                 EditSelection ese;
1183                 /* EDIT MODE ACTIVE EDITMODE ELEMENT */
1184
1185                 if (t->obedit && t->obedit->type == OB_MESH && EM_get_actSelection(&ese)) {
1186                         EM_editselection_center(t->center, &ese);
1187                         calculateCenter2D(t);
1188                         break;
1189                 } /* END EDIT MODE ACTIVE ELEMENT */
1190 #endif
1191
1192                 calculateCenterMedian(t);
1193                 if((t->flag & (T_EDIT|T_POSE))==0)
1194                 {
1195                         Scene *scene = t->scene;
1196                         Object *ob= OBACT;
1197                         if(ob)
1198                         {
1199                                 VECCOPY(t->center, ob->obmat[3]);
1200                                 projectIntView(t, t->center, t->center2d);
1201                         }
1202                 }
1203
1204                 }
1205         }
1206
1207         /* setting constraint center */
1208         VECCOPY(t->con.center, t->center);
1209         if(t->flag & (T_EDIT|T_POSE))
1210         {
1211                 Object *ob= t->obedit?t->obedit:t->poseobj;
1212                 Mat4MulVecfl(ob->obmat, t->con.center);
1213         }
1214
1215         /* voor panning from cameraview */
1216         if(t->flag & T_OBJECT)
1217         {
1218                 if(t->spacetype==SPACE_VIEW3D)
1219                 {
1220                         View3D *v3d = t->view;
1221                         Scene *scene = t->scene;
1222                         RegionView3D *rv3d = t->ar->regiondata;
1223
1224                         if(v3d->camera == OBACT && rv3d->persp==V3D_CAMOB)
1225                         {
1226                                 float axis[3];
1227                                 /* persinv is nasty, use viewinv instead, always right */
1228                                 VECCOPY(axis, t->viewinv[2]);
1229                                 Normalize(axis);
1230
1231                                 /* 6.0 = 6 grid units */
1232                                 axis[0]= t->center[0]- 6.0f*axis[0];
1233                                 axis[1]= t->center[1]- 6.0f*axis[1];
1234                                 axis[2]= t->center[2]- 6.0f*axis[2];
1235
1236                                 projectIntView(t, axis, t->center2d);
1237
1238                                 /* rotate only needs correct 2d center, grab needs initgrabz() value */
1239                                 if(t->mode==TFM_TRANSLATION)
1240                                 {
1241                                         VECCOPY(t->center, axis);
1242                                         VECCOPY(t->con.center, t->center);
1243                                 }
1244                         }
1245                 }
1246         }
1247
1248         if(t->spacetype==SPACE_VIEW3D)
1249         {
1250                 /* initgrabz() defines a factor for perspective depth correction, used in window_to_3d_delta() */
1251                 if(t->flag & (T_EDIT|T_POSE)) {
1252                         Object *ob= t->obedit?t->obedit:t->poseobj;
1253                         float vec[3];
1254
1255                         VECCOPY(vec, t->center);
1256                         Mat4MulVecfl(ob->obmat, vec);
1257                         initgrabz(t->ar->regiondata, vec[0], vec[1], vec[2]);
1258                 }
1259                 else {
1260                         initgrabz(t->ar->regiondata, t->center[0], t->center[1], t->center[2]);
1261                 }
1262         }
1263 }
1264
1265 void calculatePropRatio(TransInfo *t)
1266 {
1267         TransData *td = t->data;
1268         int i;
1269         float dist;
1270         short connected = t->flag & T_PROP_CONNECTED;
1271
1272         if (t->flag & T_PROP_EDIT) {
1273                 for(i = 0 ; i < t->total; i++, td++) {
1274                         if (td->flag & TD_SELECTED) {
1275                                 td->factor = 1.0f;
1276                         }
1277                         else if ((connected &&
1278                                                 (td->flag & TD_NOTCONNECTED || td->dist > t->prop_size))
1279                                 ||
1280                                         (connected == 0 &&
1281                                                 td->rdist > t->prop_size)) {
1282                                 /*
1283                                    The elements are sorted according to their dist member in the array,
1284                                    that means we can stop when it finds one element outside of the propsize.
1285                                 */
1286                                 td->flag |= TD_NOACTION;
1287                                 td->factor = 0.0f;
1288                                 restoreElement(td);
1289                         }
1290                         else {
1291                                 /* Use rdist for falloff calculations, it is the real distance */
1292                                 td->flag &= ~TD_NOACTION;
1293                                 dist= (t->prop_size-td->rdist)/t->prop_size;
1294
1295                                 /*
1296                                  * Clamp to positive numbers.
1297                                  * Certain corner cases with connectivity and individual centers
1298                                  * can give values of rdist larger than propsize.
1299                                  */
1300                                 if (dist < 0.0f)
1301                                         dist = 0.0f;
1302
1303                                 switch(t->prop_mode) {
1304                                 case PROP_SHARP:
1305                                         td->factor= dist*dist;
1306                                         break;
1307                                 case PROP_SMOOTH:
1308                                         td->factor= 3.0f*dist*dist - 2.0f*dist*dist*dist;
1309                                         break;
1310                                 case PROP_ROOT:
1311                                         td->factor = (float)sqrt(dist);
1312                                         break;
1313                                 case PROP_LIN:
1314                                         td->factor = dist;
1315                                         break;
1316                                 case PROP_CONST:
1317                                         td->factor = 1.0f;
1318                                         break;
1319                                 case PROP_SPHERE:
1320                                         td->factor = (float)sqrt(2*dist - dist * dist);
1321                                         break;
1322                                 case PROP_RANDOM:
1323                                         BLI_srand( BLI_rand() ); /* random seed */
1324                                         td->factor = BLI_frand()*dist;
1325                                         break;
1326                                 default:
1327                                         td->factor = 1;
1328                                 }
1329                         }
1330                 }
1331                 switch(t->prop_mode) {
1332                 case PROP_SHARP:
1333                         strcpy(t->proptext, "(Sharp)");
1334                         break;
1335                 case PROP_SMOOTH:
1336                         strcpy(t->proptext, "(Smooth)");
1337                         break;
1338                 case PROP_ROOT:
1339                         strcpy(t->proptext, "(Root)");
1340                         break;
1341                 case PROP_LIN:
1342                         strcpy(t->proptext, "(Linear)");
1343                         break;
1344                 case PROP_CONST:
1345                         strcpy(t->proptext, "(Constant)");
1346                         break;
1347                 case PROP_SPHERE:
1348                         strcpy(t->proptext, "(Sphere)");
1349                         break;
1350                 case PROP_RANDOM:
1351                         strcpy(t->proptext, "(Random)");
1352                         break;
1353                 default:
1354                         strcpy(t->proptext, "");
1355                 }
1356         }
1357         else {
1358                 for(i = 0 ; i < t->total; i++, td++) {
1359                         td->factor = 1.0;
1360                 }
1361                 strcpy(t->proptext, "");
1362         }
1363 }
1364
1365 float get_drawsize(ARegion *ar, float *co)
1366 {
1367         RegionView3D *rv3d= ar->regiondata;
1368         float size, vec[3], len1, len2;
1369
1370         /* size calculus, depending ortho/persp settings, like initgrabz() */
1371         size= rv3d->persmat[0][3]*co[0]+ rv3d->persmat[1][3]*co[1]+ rv3d->persmat[2][3]*co[2]+ rv3d->persmat[3][3];
1372
1373         VECCOPY(vec, rv3d->persinv[0]);
1374         len1= Normalize(vec);
1375         VECCOPY(vec, rv3d->persinv[1]);
1376         len2= Normalize(vec);
1377
1378         size*= 0.01f*(len1>len2?len1:len2);
1379
1380         /* correct for window size to make widgets appear fixed size */
1381         if(ar->winx > ar->winy) size*= 1000.0f/(float)ar->winx;
1382         else size*= 1000.0f/(float)ar->winy;
1383
1384         return size;
1385 }