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_action_types.h"
  38 #include "DNA_armature_types.h"
  39 #include "DNA_constraint_types.h"
  40 #include "DNA_curve_types.h"
  41 #include "DNA_lattice_types.h"
  42 #include "DNA_mesh_types.h"
  43 #include "DNA_modifier_types.h"
  44 #include "DNA_nla_types.h"
  45 #include "DNA_node_types.h"
  46 #include "DNA_object_types.h"
  47 #include "DNA_object_force.h"
  48 #include "DNA_particle_types.h"
  49 #include "DNA_screen_types.h"
  50 #include "DNA_space_types.h"
  51 #include "DNA_scene_types.h"
  52 #include "DNA_userdef_types.h"
  53 #include "DNA_view3d_types.h"
  54
  55 //#include "BIF_screen.h"
  56 //#include "BIF_resources.h"
  57 //#include "BIF_mywindow.h"
  58 #include "BIF_gl.h"
  59 //#include "BIF_editaction.h"
  60 #include "BIF_editarmature.h"
  61 //#include "BIF_editmesh.h"
  62 //#include "BIF_editnla.h"
  63 //#include "BIF_editsima.h"
  64 //#include "BIF_editparticle.h"
  65 //#include "BIF_meshtools.h"
  66 #include "BIF_retopo.h"
  67
  68 //#include "BSE_editipo.h"
  69 //#include "BSE_editipo_types.h"
  70
  71 #ifdef WITH_VERSE
  72 #include "BIF_verse.h"
  73 #endif
  74
  75 #include "BKE_action.h"
  76 #include "BKE_anim.h"
  77 #include "BKE_armature.h"
  78 #include "BKE_cloth.h"
  79 #include "BKE_curve.h"
  80 #include "BKE_depsgraph.h"
  81 #include "BKE_displist.h"
  82 #include "BKE_depsgraph.h"
  83 #include "BKE_global.h"
  84 #include "BKE_group.h"
  85 #include "BKE_ipo.h"
  86 #include "BKE_lattice.h"
  87 #include "BKE_key.h"
  88 #include "BKE_mesh.h"
  89 #include "BKE_modifier.h"
  90 #include "BKE_object.h"
  91 #include "BKE_utildefines.h"
  92 #include "BKE_context.h"
  93
  94 #ifdef WITH_VERSE
  95 #include "BKE_verse.h"
  96 #endif
  97
  98 #include "ED_view3d.h"
  99 #include "ED_mesh.h"
 100
 101 //#include "BSE_editaction_types.h"
 102 //#include "BDR_unwrapper.h"
 103
 104 #include "BLI_arithb.h"
 105 #include "BLI_blenlib.h"
 106 #include "BLI_editVert.h"
 107 #include "BLI_rand.h"
 108
 109 #include "WM_types.h"
 110
 111 //#include "blendef.h"
 112 //
 113 //#include "mydevice.h"
 114
 115 #include "transform.h"
 116
 117 extern ListBase editNurb;
 118 extern ListBase editelems;
 119
 120 extern TransInfo Trans; /* From transform.c */
 121
 122 /* ************************** Functions *************************** */
 123
 124 void getViewVector(TransInfo *t, float coord[3], float vec[3])
 125 {
 126         if (t->persp != V3D_ORTHO)
 127         {
 128                 float p1[4], p2[4];
 129
 130                 VECCOPY(p1, coord);
 131                 p1[3] = 1.0f;
 132                 VECCOPY(p2, p1);
 133                 p2[3] = 1.0f;
 134                 Mat4MulVec4fl(t->viewmat, p2);
 135
 136                 p2[0] = 2.0f * p2[0];
 137                 p2[1] = 2.0f * p2[1];
 138                 p2[2] = 2.0f * p2[2];
 139
 140                 Mat4MulVec4fl(t->viewinv, p2);
 141
 142                 VecSubf(vec, p1, p2);
 143         }
 144         else {
 145                 VECCOPY(vec, t->viewinv[2]);
 146         }
 147         Normalize(vec);
 148 }
 149
 150 /* ************************** GENERICS **************************** */
 151
 152 static void clipMirrorModifier(TransInfo *t, Object *ob)
 153 {
 154         ModifierData *md= ob->modifiers.first;
 155         float tolerance[3] = {0.0f, 0.0f, 0.0f};
 156         int axis = 0;
 157
 158         for (; md; md=md->next) {
 159                 if (md->type==eModifierType_Mirror) {
 160                         MirrorModifierData *mmd = (MirrorModifierData*) md;
 161
 162                         if(mmd->flag & MOD_MIR_CLIPPING) {
 163                                 axis = 0;
 164                                 if(mmd->flag & MOD_MIR_AXIS_X) {
 165                                         axis |= 1;
 166                                         tolerance[0] = mmd->tolerance;
 167                                 }
 168                                 if(mmd->flag & MOD_MIR_AXIS_Y) {
 169                                         axis |= 2;
 170                                         tolerance[1] = mmd->tolerance;
 171                                 }
 172                                 if(mmd->flag & MOD_MIR_AXIS_Z) {
 173                                         axis |= 4;
 174                                         tolerance[2] = mmd->tolerance;
 175                                 }
 176                                 if (axis) {
 177                                         float mtx[4][4], imtx[4][4];
 178                                         int i;
 179                                         TransData *td = t->data;
 180
 181                                         if (mmd->mirror_ob) {
 182                                                 float obinv[4][4];
 183
 184                                                 Mat4Invert(obinv, mmd->mirror_ob->obmat);
 185                                                 Mat4MulMat4(mtx, ob->obmat, obinv);
 186                                                 Mat4Invert(imtx, mtx);
 187                                         }
 188
 189                                         for(i = 0 ; i < t->total; i++, td++) {
 190                                                 int clip;
 191                                                 float loc[3], iloc[3];
 192
 193                                                 if (td->flag & TD_NOACTION)
 194                                                         break;
 195                                                 if (td->loc==NULL)
 196                                                         break;
 197
 198                                                 if (td->flag & TD_SKIP)
 199                                                         continue;
 200
 201                                                 VecCopyf(loc,  td->loc);
 202                                                 VecCopyf(iloc, td->iloc);
 203
 204                                                 if (mmd->mirror_ob) {
 205                                                         VecMat4MulVecfl(loc, mtx, loc);
 206                                                         VecMat4MulVecfl(iloc, mtx, iloc);
 207                                                 }
 208
 209                                                 clip = 0;
 210                                                 if(axis & 1) {
 211                                                         if(fabs(iloc[0])<=tolerance[0] ||
 212                                                            loc[0]*iloc[0]<0.0f) {
 213                                                                 loc[0]= 0.0f;
 214                                                                 clip = 1;
 215                                                         }
 216                                                 }
 217
 218                                                 if(axis & 2) {
 219                                                         if(fabs(iloc[1])<=tolerance[1] ||
 220                                                            loc[1]*iloc[1]<0.0f) {
 221                                                                 loc[1]= 0.0f;
 222                                                                 clip = 1;
 223                                                         }
 224                                                 }
 225                                                 if(axis & 4) {
 226                                                         if(fabs(iloc[2])<=tolerance[2] ||
 227                                                            loc[2]*iloc[2]<0.0f) {
 228                                                                 loc[2]= 0.0f;
 229                                                                 clip = 1;
 230                                                         }
 231                                                 }
 232                                                 if (clip) {
 233                                                         if (mmd->mirror_ob) {
 234                                                                 VecMat4MulVecfl(loc, imtx, loc);
 235                                                         }
 236                                                         VecCopyf(td->loc, loc);
 237                                                 }
 238                                         }
 239                                 }
 240
 241                         }
 242                 }
 243         }
 244 }
 245
 246 /* assumes obedit set to mesh object */
 247 static void editmesh_apply_to_mirror(TransInfo *t)
 248 {
 249         TransData *td = t->data;
 250         EditVert *eve;
 251         int i;
 252
 253         for(i = 0 ; i < t->total; i++, td++) {
 254                 if (td->flag & TD_NOACTION)
 255                         break;
 256                 if (td->loc==NULL)
 257                         break;
 258                 if (td->flag & TD_SKIP)
 259                         continue;
 260
 261                 eve = td->extra;
 262                 if(eve) {
 263                         eve->co[0]= -td->loc[0];
 264                         eve->co[1]= td->loc[1];
 265                         eve->co[2]= td->loc[2];
 266                 }
 267         }
 268 }
 269
 270 /* called for updating while transform acts, once per redraw */
 271 void recalcData(TransInfo *t)
 272 {
 273         Scene *scene = t->scene;
 274         Base *base;
 275 #ifdef WITH_VERSE
 276         struct TransData *td;
 277 #endif
 278
 279 #if 0 // TRANSFORM_FIX_ME
 280         if (t->spacetype == SPACE_ACTION) {
 281                 Object *ob= OBACT;
 282                 void *data;
 283                 short context;
 284
 285                 /* determine what type of data we are operating on */
 286                 data = get_action_context(&context);
 287                 if (data == NULL) return;
 288
 289                 /* always flush data if gpencil context */
 290                 if (context == ACTCONT_GPENCIL) {
 291                         flushTransGPactionData(t);
 292                 }
 293
 294                 if (G.saction->lock) {
 295                         if (context == ACTCONT_ACTION) {
 296                                 if(ob) {
 297                                         ob->ctime= -1234567.0f;
 298                                         if(ob->pose || ob_get_key(ob))
 299                                                 DAG_object_flush_update(G.scene, ob, OB_RECALC);
 300                                         else
 301                                                 DAG_object_flush_update(G.scene, ob, OB_RECALC_OB);
 302                                 }
 303                         }
 304                         else if (context == ACTCONT_SHAPEKEY) {
 305                                 DAG_object_flush_update(G.scene, OBACT, OB_RECALC_OB|OB_RECALC_DATA);
 306                         }
 307                 }
 308         }
 309         else if (t->spacetype == SPACE_NLA) {
 310                 if (G.snla->lock) {
 311                         for (base=G.scene->base.first; base; base=base->next) {
 312                                 if (base->flag & BA_HAS_RECALC_OB)
 313                                         base->object->recalc |= OB_RECALC_OB;
 314                                 if (base->flag & BA_HAS_RECALC_DATA)
 315                                         base->object->recalc |= OB_RECALC_DATA;
 316
 317                                 if (base->object->recalc)
 318                                         base->object->ctime= -1234567.0f;       // eveil!
 319
 320                                 /* recalculate scale of selected nla-strips */
 321                                 if (base->object->nlastrips.first) {
 322                                         Object *bob= base->object;
 323                                         bActionStrip *strip;
 324
 325                                         for (strip= bob->nlastrips.first; strip; strip= strip->next) {
 326                                                 if (strip->flag & ACTSTRIP_SELECT) {
 327                                                         float actlen= strip->actend - strip->actstart;
 328                                                         float len= strip->end - strip->start;
 329
 330                                                         strip->scale= len / (actlen * strip->repeat);
 331                                                 }
 332                                         }
 333                                 }
 334                         }
 335
 336                         DAG_scene_flush_update(G.scene, screen_view3d_layers(), 0);
 337                 }
 338                 else {
 339                         for (base=G.scene->base.first; base; base=base->next) {
 340                                 /* recalculate scale of selected nla-strips */
 341                                 if (base->object && base->object->nlastrips.first) {
 342                                         Object *bob= base->object;
 343                                         bActionStrip *strip;
 344
 345                                         for (strip= bob->nlastrips.first; strip; strip= strip->next) {
 346                                                 if (strip->flag & ACTSTRIP_SELECT) {
 347                                                         float actlen= strip->actend - strip->actstart;
 348                                                         float len= strip->end - strip->start;
 349
 350                                                         /* prevent 'negative' scaling */
 351                                                         if (len < 0) {
 352                                                                 SWAP(float, strip->start, strip->end);
 353                                                                 len= fabs(len);
 354                                                         }
 355
 356                                                         /* calculate new scale */
 357                                                         strip->scale= len / (actlen * strip->repeat);
 358                                                 }
 359                                         }
 360                                 }
 361                         }
 362                 }
 363         }
 364         else if (t->spacetype == SPACE_IPO) {
 365                 EditIpo *ei;
 366                 int dosort = 0;
 367                 int a;
 368
 369                 /* do the flush first */
 370                 flushTransIpoData(t);
 371
 372                 /* now test if there is a need to re-sort */
 373                 ei= G.sipo->editipo;
 374                 for (a=0; a<G.sipo->totipo; a++, ei++) {
 375                         if (ISPOIN(ei, flag & IPO_VISIBLE, icu)) {
 376
 377                                 /* watch it: if the time is wrong: do not correct handles */
 378                                 if (test_time_ipocurve(ei->icu)) {
 379                                         dosort++;
 380                                 } else {
 381                                         calchandles_ipocurve(ei->icu);
 382                                 }
 383                         }
 384                 }
 385
 386                 /* do resort and other updates? */
 387                 if (dosort) remake_ipo_transdata(t);
 388                 if (G.sipo->showkey) update_ipokey_val();
 389
 390                 calc_ipo(G.sipo->ipo, (float)CFRA);
 391
 392                 /* update realtime - not working? */
 393                 if (G.sipo->lock) {
 394                         if (G.sipo->blocktype==ID_MA || G.sipo->blocktype==ID_TE) {
 395                                 do_ipo(G.sipo->ipo);
 396                         }
 397                         else if(G.sipo->blocktype==ID_CA) {
 398                                 do_ipo(G.sipo->ipo);
 399                         }
 400                         else if(G.sipo->blocktype==ID_KE) {
 401                                 Object *ob= OBACT;
 402                                 if(ob) {
 403                                         ob->shapeflag &= ~OB_SHAPE_TEMPLOCK;
 404                                         DAG_object_flush_update(G.scene, ob, OB_RECALC_DATA);
 405                                 }
 406                         }
 407                         else if(G.sipo->blocktype==ID_PO) {
 408                                 Object *ob= OBACT;
 409                                 if(ob && ob->pose) {
 410                                         DAG_object_flush_update(G.scene, ob, OB_RECALC_DATA);
 411                                 }
 412                         }
 413                         else if(G.sipo->blocktype==ID_OB) {
 414                                 Object *ob= OBACT;
 415                                 Base *base= FIRSTBASE;
 416
 417                                 /* only if this if active object has this ipo in an action (assumes that current ipo is in action) */
 418                                 if ((ob) && (ob->ipoflag & OB_ACTION_OB) && (G.sipo->pin==0)) {
 419                                         ob->ctime= -1234567.0f;
 420                                         DAG_object_flush_update(G.scene, ob, OB_RECALC_OB);
 421                                 }
 422
 423                                 while(base) {
 424                                         if(base->object->ipo==G.sipo->ipo) {
 425                                                 do_ob_ipo(base->object);
 426                                                 base->object->recalc |= OB_RECALC_OB;
 427                                         }
 428                                         base= base->next;
 429                                 }
 430                                 DAG_scene_flush_update(G.scene, screen_view3d_layers(), 0);
 431                         }
 432                 }
 433         }
 434         else if (t->obedit) {
 435                 if (t->obedit->type == OB_MESH) {
 436                         if(t->spacetype==SPACE_IMAGE) {
 437                                 flushTransUVs(t);
 438                                 if (G.sima->flag & SI_LIVE_UNWRAP)
 439                                         unwrap_lscm_live_re_solve();
 440                         } else {
 441                                 EditMesh *em = ((Mesh *)t->obedit->data)->edit_mesh
 442                                 /* mirror modifier clipping? */
 443                                 if(t->state != TRANS_CANCEL) {
 444                                         if ((G.qual & LR_CTRLKEY)==0) {
 445                                                 /* Only retopo if not snapping, Note, this is the only case of G.qual being used, but we have no T_SHIFT_MOD - Campbell */
 446                                                 retopo_do_all();
 447                                         }
 448                                         clipMirrorModifier(t, t->obedit);
 449                                 }
 450                                 if((t->options & CTX_NO_MIRROR) == 0 && (G.scene->toolsettings->editbutflag & B_MESH_X_MIRROR))
 451                                         editmesh_apply_to_mirror(t);
 452
 453                                 DAG_object_flush_update(G.scene, t->obedit, OB_RECALC_DATA);  /* sets recalc flags */
 454
 455                                 recalc_editnormals(em);
 456                         }
 457                 }
 458                 else if ELEM(t->obedit->type, OB_CURVE, OB_SURF) {
 459                         Nurb *nu= editNurb.first;
 460                         DAG_object_flush_update(G.scene, t->obedit, OB_RECALC_DATA);  /* sets recalc flags */
 461
 462                         if (t->state == TRANS_CANCEL) {
 463                                 while(nu) {
 464                                         calchandlesNurb(nu); /* Cant do testhandlesNurb here, it messes up the h1 and h2 flags */
 465                                         nu= nu->next;
 466                                 }
 467                         } else {
 468                                 /* Normal updating */
 469                                 while(nu) {
 470                                         test2DNurb(nu);
 471                                         calchandlesNurb(nu);
 472                                         nu= nu->next;
 473                                 }
 474                                 retopo_do_all();
 475                         }
 476                 }
 477                 else if(t->obedit->type==OB_ARMATURE){   /* no recalc flag, does pose */
 478                         bArmature *arm= t->obedit->data;
 479                         EditBone *ebo;
 480                         TransData *td = t->data;
 481                         int i;
 482
 483                         /* Ensure all bones are correctly adjusted */
 484                         for (ebo=G.edbo.first; ebo; ebo=ebo->next){
 485
 486                                 if ((ebo->flag & BONE_CONNECTED) && ebo->parent){
 487                                         /* If this bone has a parent tip that has been moved */
 488                                         if (ebo->parent->flag & BONE_TIPSEL){
 489                                                 VECCOPY (ebo->head, ebo->parent->tail);
 490                                                 if(t->mode==TFM_BONE_ENVELOPE) ebo->rad_head= ebo->parent->rad_tail;
 491                                         }
 492                                         /* If this bone has a parent tip that has NOT been moved */
 493                                         else{
 494                                                 VECCOPY (ebo->parent->tail, ebo->head);
 495                                                 if(t->mode==TFM_BONE_ENVELOPE) ebo->parent->rad_tail= ebo->rad_head;
 496                                         }
 497                                 }
 498
 499                                 /* on extrude bones, oldlength==0.0f, so we scale radius of points */
 500                                 ebo->length= VecLenf(ebo->head, ebo->tail);
 501                                 if(ebo->oldlength==0.0f) {
 502                                         ebo->rad_head= 0.25f*ebo->length;
 503                                         ebo->rad_tail= 0.10f*ebo->length;
 504                                         ebo->dist= 0.25f*ebo->length;
 505                                         if(ebo->parent) {
 506                                                 if(ebo->rad_head > ebo->parent->rad_tail)
 507                                                         ebo->rad_head= ebo->parent->rad_tail;
 508                                         }
 509                                 }
 510                                 else if(t->mode!=TFM_BONE_ENVELOPE) {
 511                                         /* if bones change length, lets do that for the deform distance as well */
 512                                         ebo->dist*= ebo->length/ebo->oldlength;
 513                                         ebo->rad_head*= ebo->length/ebo->oldlength;
 514                                         ebo->rad_tail*= ebo->length/ebo->oldlength;
 515                                         ebo->oldlength= ebo->length;
 516                                 }
 517                         }
 518
 519
 520                         if (t->mode != TFM_BONE_ROLL)
 521                         {
 522                                 /* fix roll */
 523                                 for(i = 0; i < t->total; i++, td++)
 524                                 {
 525                                         if (td->extra)
 526                                         {
 527                                                 float vec[3], up_axis[3];
 528                                                 float qrot[4];
 529
 530                                                 ebo = td->extra;
 531                                                 VECCOPY(up_axis, td->axismtx[2]);
 532
 533                                                 if (t->mode != TFM_ROTATION)
 534                                                 {
 535                                                         VecSubf(vec, ebo->tail, ebo->head);
 536                                                         Normalize(vec);
 537                                                         RotationBetweenVectorsToQuat(qrot, td->axismtx[1], vec);
 538                                                         QuatMulVecf(qrot, up_axis);
 539                                                 }
 540                                                 else
 541                                                 {
 542                                                         Mat3MulVecfl(t->mat, up_axis);
 543                                                 }
 544
 545                                                 ebo->roll = rollBoneToVector(ebo, up_axis);
 546                                         }
 547                                 }
 548                         }
 549
 550                         if(arm->flag & ARM_MIRROR_EDIT)
 551                                 transform_armature_mirror_update();
 552
 553                 }
 554                 else if(t->obedit->type==OB_LATTICE) {
 555                         DAG_object_flush_update(G.scene, t->obedit, OB_RECALC_DATA);  /* sets recalc flags */
 556
 557                         if(editLatt->flag & LT_OUTSIDE) outside_lattice(editLatt);
 558                 }
 559                 else {
 560                         DAG_object_flush_update(G.scene, t->obedit, OB_RECALC_DATA);  /* sets recalc flags */
 561                 }
 562         }
 563         else if( (t->flag & T_POSE) && t->poseobj) {
 564                 Object *ob= t->poseobj;
 565                 bArmature *arm= ob->data;
 566
 567                 /* old optimize trick... this enforces to bypass the depgraph */
 568                 if (!(arm->flag & ARM_DELAYDEFORM)) {
 569                         DAG_object_flush_update(G.scene, ob, OB_RECALC_DATA);  /* sets recalc flags */
 570                 }
 571                 else
 572                         where_is_pose(ob);
 573         }
 574         else if(G.f & G_PARTICLEEDIT) {
 575                 flushTransParticles(t);
 576         }
 577 #endif
 578         if (t->obedit) {
 579                 if (t->obedit->type == OB_MESH) {
 580                         if(t->spacetype==SPACE_IMAGE) {
 581                                 flushTransUVs(t);
 582                                 /* TRANSFORM_FIX_ME */
 583 //                              if (G.sima->flag & SI_LIVE_UNWRAP)
 584 //                                      unwrap_lscm_live_re_solve();
 585                         } else {
 586                                 EditMesh *em = ((Mesh*)t->obedit->data)->edit_mesh;
 587                                 /* mirror modifier clipping? */
 588                                 if(t->state != TRANS_CANCEL) {
 589                                         /* TRANSFORM_FIX_ME */
 590 //                                      if ((G.qual & LR_CTRLKEY)==0) {
 591 //                                              /* Only retopo if not snapping, Note, this is the only case of G.qual being used, but we have no T_SHIFT_MOD - Campbell */
 592 //                                              retopo_do_all();
 593 //                                      }
 594                                         clipMirrorModifier(t, t->obedit);
 595                                 }
 596                                 if((t->options & CTX_NO_MIRROR) == 0 && (t->scene->toolsettings->editbutflag & B_MESH_X_MIRROR))
 597                                         editmesh_apply_to_mirror(t);
 598
 599                                 DAG_object_flush_update(t->scene, t->obedit, OB_RECALC_DATA);  /* sets recalc flags */
 600
 601                                 recalc_editnormals(em);
 602                         }
 603                 }
 604         }
 605         else {
 606                 for(base= FIRSTBASE; base; base= base->next) {
 607                         Object *ob= base->object;
 608
 609                         /* this flag is from depgraph, was stored in initialize phase, handled in drawview.c */
 610                         if(base->flag & BA_HAS_RECALC_OB)
 611                                 ob->recalc |= OB_RECALC_OB;
 612                         if(base->flag & BA_HAS_RECALC_DATA)
 613                                 ob->recalc |= OB_RECALC_DATA;
 614
 615                         /* thanks to ob->ctime usage, ipos are not called in where_is_object,
 616                            unless we edit ipokeys */
 617                         if(base->flag & BA_DO_IPO) {
 618                                 if(ob->ipo) {
 619                                         IpoCurve *icu;
 620
 621                                         ob->ctime= -1234567.0;
 622
 623                                         icu= ob->ipo->curve.first;
 624                                         while(icu) {
 625                                                 calchandles_ipocurve(icu);
 626                                                 icu= icu->next;
 627                                         }
 628                                 }
 629                         }
 630
 631                         /* proxy exception */
 632                         if(ob->proxy)
 633                                 ob->proxy->recalc |= ob->recalc;
 634                         if(ob->proxy_group)
 635                                 group_tag_recalc(ob->proxy_group->dup_group);
 636                 }
 637         }
 638
 639 #ifdef WITH_VERSE
 640         for (td = t->data; td < t->data + t->total; td++) {
 641                 if(td->flag & TD_VERSE_VERT) {
 642                         if(td->verse)
 643                                 send_versevert_pos((VerseVert*)td->verse);
 644                 }
 645                 else if(td->flag & TD_VERSE_OBJECT)
 646                         if(td->verse) b_verse_send_transformation((Object*)td->verse);
 647         }
 648 #endif
 649
 650         /* update shaded drawmode while transform */
 651         if(t->spacetype==SPACE_VIEW3D && ((View3D*)t->view)->drawtype == OB_SHADED)
 652                 reshadeall_displist();
 653 }
 654
 655 void drawLine(float *center, float *dir, char axis, short options)
 656 {
 657 #if 0 // TRANSFORM_FIX_ME
 658         extern void make_axis_color(char *col, char *col2, char axis);  // drawview.c
 659         float v1[3], v2[3], v3[3];
 660         char col[3], col2[3];
 661
 662         //if(t->obedit) mymultmatrix(t->obedit->obmat); // sets opengl viewing
 663
 664         VecCopyf(v3, dir);
 665         VecMulf(v3, G.vd->far);
 666
 667         VecSubf(v2, center, v3);
 668         VecAddf(v1, center, v3);
 669
 670         if (options & DRAWLIGHT) {
 671                 col[0] = col[1] = col[2] = 220;
 672         }
 673         else {
 674                 BIF_GetThemeColor3ubv(TH_GRID, col);
 675         }
 676         make_axis_color(col, col2, axis);
 677         glColor3ubv((GLubyte *)col2);
 678
 679         setlinestyle(0);
 680         glBegin(GL_LINE_STRIP);
 681                 glVertex3fv(v1);
 682                 glVertex3fv(v2);
 683         glEnd();
 684
 685         myloadmatrix(G.vd->viewmat);
 686 #endif
 687 }
 688
 689 void resetTransRestrictions(TransInfo *t)
 690 {
 691         t->flag &= ~T_ALL_RESTRICTIONS;
 692 }
 693
 694 void initTransInfo (bContext *C, TransInfo *t, wmEvent *event)
 695 {
 696         Scene *sce = CTX_data_scene(C);
 697         ARegion *ar = CTX_wm_region(C);
 698         ScrArea *sa = CTX_wm_area(C);
 699         Object *obedit = CTX_data_edit_object(C);
 700
 701         /* moving: is shown in drawobject() (transform color) */
 702 //  TRANSFORM_FIX_ME
 703 //      if(obedit || (t->flag & T_POSE) ) G.moving= G_TRANSFORM_EDIT;
 704 //      else if(G.f & G_PARTICLEEDIT) G.moving= G_TRANSFORM_PARTICLE;
 705 //      else G.moving= G_TRANSFORM_OBJ;
 706
 707         t->scene = sce;
 708         t->sa = sa;
 709         t->ar = ar;
 710         t->obedit = obedit;
 711
 712         t->data = NULL;
 713         t->ext = NULL;
 714
 715         t->flag = 0;
 716
 717         t->redraw = 1; /* redraw first time */
 718
 719         t->propsize = 1.0f; /* TRANSFORM_FIX_ME this needs to be saved in scene or something */
 720
 721         /* setting PET flag */
 722         if ((t->options & CTX_NO_PET) == 0 && (sce->proportional)) {
 723                 t->flag |= T_PROP_EDIT;
 724
 725                 if(sce->proportional == 2)
 726                         t->flag |= T_PROP_CONNECTED;    // yes i know, has to become define
 727         }
 728
 729         if (event)
 730         {
 731                 t->imval[0] = event->x - t->ar->winrct.xmin;
 732                 t->imval[1] = event->y - t->ar->winrct.ymin;
 733         }
 734         else
 735         {
 736                 t->imval[0] = 0;
 737                 t->imval[1] = 0;
 738         }
 739
 740         t->con.imval[0] = t->imval[0];
 741         t->con.imval[1] = t->imval[1];
 742
 743         t->mval[0] = t->imval[0];
 744         t->mval[1] = t->imval[1];
 745
 746         t->transform            = NULL;
 747         t->handleEvent          = NULL;
 748
 749         t->total                        = 0;
 750
 751         t->val = 0.0f;
 752
 753         t->vec[0]                       =
 754                 t->vec[1]               =
 755                 t->vec[2]               = 0.0f;
 756
 757         t->center[0]            =
 758                 t->center[1]    =
 759                 t->center[2]    = 0.0f;
 760
 761         Mat3One(t->mat);
 762
 763         t->spacetype = sa->spacetype;
 764         if(t->spacetype == SPACE_VIEW3D)
 765         {
 766                 View3D *v3d = sa->spacedata.first;
 767
 768                 t->view = v3d;
 769
 770                 if(v3d->flag & V3D_ALIGN) t->flag |= T_V3D_ALIGN;
 771                 t->around = v3d->around;
 772         }
 773         else if(t->spacetype==SPACE_IMAGE || t->spacetype==SPACE_NODE)
 774         {
 775                 View2D *v2d = sa->spacedata.first; // XXX no!
 776
 777                 t->view = v2d;
 778
 779                 t->around = v2d->around;
 780         }
 781         else
 782         {
 783                 // XXX for now, get View2D  from the active region
 784                 t->view = &ar->v2d;
 785
 786                 t->around = V3D_CENTER;
 787         }
 788
 789         setTransformViewMatrices(t);
 790         initNumInput(&t->num);
 791         initNDofInput(&t->ndof);
 792 }
 793
 794 /* Here I would suggest only TransInfo related issues, like free data & reset vars. Not redraws */
 795 void postTrans (TransInfo *t)
 796 {
 797         TransData *td;
 798
 799         G.moving = 0; // Set moving flag off (display as usual)
 800 #ifdef WITH_VERSE
 801
 802         for (td = t->data; td < t->data + t->total; td++) {
 803                 if(td->flag & TD_VERSE_VERT) {
 804                         if(td->verse) send_versevert_pos((VerseVert*)td->verse);
 805                 }
 806                 else if(td->flag & TD_VERSE_OBJECT) {
 807                         if(td->verse) {
 808                                 struct VNode *vnode;
 809                                 vnode = (VNode*)((Object*)td->verse)->vnode;
 810                                 ((VObjectData*)vnode->data)->flag |= POS_SEND_READY;
 811                                 ((VObjectData*)vnode->data)->flag |= ROT_SEND_READY;
 812                                 ((VObjectData*)vnode->data)->flag |= SCALE_SEND_READY;
 813                                 b_verse_send_transformation((Object*)td->verse);
 814                         }
 815                 }
 816         }
 817 #endif
 818
 819         stopConstraint(t);
 820
 821         /* postTrans can be called when nothing is selected, so data is NULL already */
 822         if (t->data) {
 823                 int a;
 824
 825                 /* since ipokeys are optional on objects, we mallocced them per trans-data */
 826                 for(a=0, td= t->data; a<t->total; a++, td++) {
 827                         if(td->tdi) MEM_freeN(td->tdi);
 828                         if (td->flag & TD_BEZTRIPLE) MEM_freeN(td->hdata);
 829                 }
 830                 MEM_freeN(t->data);
 831         }
 832
 833         if (t->ext) MEM_freeN(t->ext);
 834         if (t->data2d) {
 835                 MEM_freeN(t->data2d);
 836                 t->data2d= NULL;
 837         }
 838
 839         if(t->spacetype==SPACE_IMAGE) {
 840 #if 0 // TRANSFORM_FIX_ME
 841                 if (G.sima->flag & SI_LIVE_UNWRAP)
 842                         unwrap_lscm_live_end(t->state == TRANS_CANCEL);
 843 #endif
 844         }
 845         else if(t->spacetype==SPACE_ACTION) {
 846                 if (t->customData)
 847                         MEM_freeN(t->customData);
 848         }
 849 }
 850
 851 void applyTransObjects(TransInfo *t)
 852 {
 853         TransData *td;
 854
 855         for (td = t->data; td < t->data + t->total; td++) {
 856                 VECCOPY(td->iloc, td->loc);
 857                 if (td->ext->rot) {
 858                         VECCOPY(td->ext->irot, td->ext->rot);
 859                 }
 860                 if (td->ext->size) {
 861                         VECCOPY(td->ext->isize, td->ext->size);
 862                 }
 863         }
 864         recalcData(t);
 865 }
 866
 867 /* helper for below */
 868 static void restore_ipokey(float *poin, float *old)
 869 {
 870         if(poin) {
 871                 poin[0]= old[0];
 872                 poin[-3]= old[3];
 873                 poin[3]= old[6];
 874         }
 875 }
 876
 877 static void restoreElement(TransData *td) {
 878         /* TransData for crease has no loc */
 879         if (td->loc) {
 880                 VECCOPY(td->loc, td->iloc);
 881         }
 882         if (td->val) {
 883                 *td->val = td->ival;
 884         }
 885         if (td->ext && (td->flag&TD_NO_EXT)==0) {
 886                 if (td->ext->rot) {
 887                         VECCOPY(td->ext->rot, td->ext->irot);
 888                 }
 889                 if (td->ext->size) {
 890                         VECCOPY(td->ext->size, td->ext->isize);
 891                 }
 892                 if(td->flag & TD_USEQUAT) {
 893                         if (td->ext->quat) {
 894                                 QUATCOPY(td->ext->quat, td->ext->iquat);
 895                         }
 896                 }
 897         }
 898
 899         if (td->flag & TD_BEZTRIPLE) {
 900                 *(td->hdata->h1) = td->hdata->ih1;
 901                 *(td->hdata->h2) = td->hdata->ih2;
 902         }
 903
 904         if(td->tdi) {
 905                 TransDataIpokey *tdi= td->tdi;
 906
 907                 restore_ipokey(tdi->locx, tdi->oldloc);
 908                 restore_ipokey(tdi->locy, tdi->oldloc+1);
 909                 restore_ipokey(tdi->locz, tdi->oldloc+2);
 910
 911                 restore_ipokey(tdi->rotx, tdi->oldrot);
 912                 restore_ipokey(tdi->roty, tdi->oldrot+1);
 913                 restore_ipokey(tdi->rotz, tdi->oldrot+2);
 914
 915                 restore_ipokey(tdi->sizex, tdi->oldsize);
 916                 restore_ipokey(tdi->sizey, tdi->oldsize+1);
 917                 restore_ipokey(tdi->sizez, tdi->oldsize+2);
 918         }
 919 }
 920
 921 static void restoreNode(TransData2D *td)
 922 {
 923         td->loc2d[0]= td->loc[0];
 924         td->loc2d[1]= td->loc[1];
 925 }
 926
 927 void restoreTransNodes(TransInfo *t)
 928 {
 929         TransData2D *td;
 930         for (td = t->data2d; td < t->data2d + t->total; td++) {
 931                 restoreNode(td);
 932         }
 933 }
 934
 935 void restoreTransObjects(TransInfo *t)
 936 {
 937         TransData *td;
 938
 939         for (td = t->data; td < t->data + t->total; td++) {
 940                 restoreElement(td);
 941 #ifdef WITH_VERSE
 942                 /* position of vertexes and object transformation matrix is sent
 943                  * extra, becuase blender uses synchronous sending of vertexes
 944                  * position as well object trans. matrix and it isn't possible to
 945                  * send it in recalcData sometimes */
 946                 if(td->flag & TD_VERSE_VERT) {
 947                         if(td->verse) {
 948                                 ((VerseVert*)td->verse)->flag |= VERT_POS_OBSOLETE;
 949                         }
 950                 }
 951                 else if(td->flag & TD_VERSE_OBJECT)
 952                         if(td->verse) {
 953                                 struct VNode *vnode;
 954                                 vnode = (VNode*)((Object*)td->verse)->vnode;
 955                                 ((VObjectData*)vnode->data)->flag |= POS_SEND_READY;
 956                                 ((VObjectData*)vnode->data)->flag |= ROT_SEND_READY;
 957                                 ((VObjectData*)vnode->data)->flag |= SCALE_SEND_READY;
 958                         }
 959 #endif
 960         }
 961
 962         Mat3One(t->mat);
 963
 964         recalcData(t);
 965 }
 966
 967 void calculateCenter2D(TransInfo *t)
 968 {
 969         if (t->flag & (T_EDIT|T_POSE)) {
 970                 Object *ob= t->obedit?t->obedit:t->poseobj;
 971                 float vec[3];
 972
 973                 VECCOPY(vec, t->center);
 974                 Mat4MulVecfl(ob->obmat, vec);
 975                 projectIntView(t, vec, t->center2d);
 976         }
 977         else {
 978                 projectIntView(t, t->center, t->center2d);
 979         }
 980 }
 981
 982 void calculateCenterCursor(TransInfo *t)
 983 {
 984         float *cursor;
 985
 986         cursor = give_cursor(t->scene, t->view);
 987         VECCOPY(t->center, cursor);
 988
 989         /* If edit or pose mode, move cursor in local space */
 990         if (t->flag & (T_EDIT|T_POSE)) {
 991                 Object *ob = t->obedit?t->obedit:t->poseobj;
 992                 float mat[3][3], imat[3][3];
 993
 994                 VecSubf(t->center, t->center, ob->obmat[3]);
 995                 Mat3CpyMat4(mat, ob->obmat);
 996                 Mat3Inv(imat, mat);
 997                 Mat3MulVecfl(imat, t->center);
 998         }
 999
1000         calculateCenter2D(t);
1001 }
1002
1003 void calculateCenterCursor2D(TransInfo *t)
1004 {
1005 #if 0 // TRANSFORM_FIX_ME
1006         float aspx=1.0, aspy=1.0;
1007
1008         if(t->spacetype==SPACE_IMAGE) /* only space supported right now but may change */
1009                 transform_aspect_ratio_tface_uv(&aspx, &aspy);
1010         if (G.v2d) {
1011                 t->center[0] = G.v2d->cursor[0] * aspx;
1012                 t->center[1] = G.v2d->cursor[1] * aspy;
1013         }
1014 #endif
1015         calculateCenter2D(t);
1016 }
1017
1018 void calculateCenterMedian(TransInfo *t)
1019 {
1020         float partial[3] = {0.0f, 0.0f, 0.0f};
1021         int total = 0;
1022         int i;
1023
1024         for(i = 0; i < t->total; i++) {
1025                 if (t->data[i].flag & TD_SELECTED) {
1026                         if (!(t->data[i].flag & TD_NOCENTER))
1027                         {
1028                                 VecAddf(partial, partial, t->data[i].center);
1029                                 total++;
1030                         }
1031                 }
1032                 else {
1033                         /*
1034                            All the selected elements are at the head of the array
1035                            which means we can stop when it finds unselected data
1036                         */
1037                         break;
1038                 }
1039         }
1040         if(i)
1041                 VecMulf(partial, 1.0f / total);
1042         VECCOPY(t->center, partial);
1043
1044         calculateCenter2D(t);
1045 }
1046
1047 void calculateCenterBound(TransInfo *t)
1048 {
1049         float max[3];
1050         float min[3];
1051         int i;
1052         for(i = 0; i < t->total; i++) {
1053                 if (i) {
1054                         if (t->data[i].flag & TD_SELECTED) {
1055                                 if (!(t->data[i].flag & TD_NOCENTER))
1056                                         MinMax3(min, max, t->data[i].center);
1057                         }
1058                         else {
1059                                 /*
1060                                    All the selected elements are at the head of the array
1061                                    which means we can stop when it finds unselected data
1062                                 */
1063                                 break;
1064                         }
1065                 }
1066                 else {
1067                         VECCOPY(max, t->data[i].center);
1068                         VECCOPY(min, t->data[i].center);
1069                 }
1070         }
1071         VecAddf(t->center, min, max);
1072         VecMulf(t->center, 0.5);
1073
1074         calculateCenter2D(t);
1075 }
1076
1077 void calculateCenter(TransInfo *t)
1078 {
1079         switch(t->around) {
1080         case V3D_CENTER:
1081                 calculateCenterBound(t);
1082                 break;
1083         case V3D_CENTROID:
1084                 calculateCenterMedian(t);
1085                 break;
1086         case V3D_CURSOR:
1087                 if(t->spacetype==SPACE_IMAGE)
1088                         calculateCenterCursor2D(t);
1089                 else
1090                         calculateCenterCursor(t);
1091                 break;
1092         case V3D_LOCAL:
1093                 /* Individual element center uses median center for helpline and such */
1094                 calculateCenterMedian(t);
1095                 break;
1096         case V3D_ACTIVE:
1097                 {
1098                 /* set median, and if if if... do object center */
1099                 EditSelection ese;
1100                 /* EDIT MODE ACTIVE EDITMODE ELEMENT */
1101
1102 #if 0 // TRANSFORM_FIX_ME
1103                 if (t->obedit && t->obedit->type == OB_MESH && EM_get_actSelection(&ese)) {
1104                         EM_editselection_center(t->center, &ese);
1105                         calculateCenter2D(t);
1106                         break;
1107                 } /* END EDIT MODE ACTIVE ELEMENT */
1108 #endif
1109
1110                 calculateCenterMedian(t);
1111                 if((t->flag & (T_EDIT|T_POSE))==0)
1112                 {
1113                         Scene *scene = t->scene;
1114                         Object *ob= OBACT;
1115                         if(ob)
1116                         {
1117                                 VECCOPY(t->center, ob->obmat[3]);
1118                                 projectIntView(t, t->center, t->center2d);
1119                         }
1120                 }
1121
1122                 }
1123         }
1124
1125         /* setting constraint center */
1126         VECCOPY(t->con.center, t->center);
1127         if(t->flag & (T_EDIT|T_POSE))
1128         {
1129                 Object *ob= t->obedit?t->obedit:t->poseobj;
1130                 Mat4MulVecfl(ob->obmat, t->con.center);
1131         }
1132
1133         /* voor panning from cameraview */
1134         if(t->flag & T_OBJECT)
1135         {
1136                 if(t->spacetype==SPACE_VIEW3D)
1137                 {
1138                         View3D *v3d = t->view;
1139                         Scene *scene = t->scene;
1140
1141                         if(v3d->camera == OBACT && v3d->persp==V3D_CAMOB)
1142                         {
1143                                 float axis[3];
1144                                 /* persinv is nasty, use viewinv instead, always right */
1145                                 VECCOPY(axis, t->viewinv[2]);
1146                                 Normalize(axis);
1147
1148                                 /* 6.0 = 6 grid units */
1149                                 axis[0]= t->center[0]- 6.0f*axis[0];
1150                                 axis[1]= t->center[1]- 6.0f*axis[1];
1151                                 axis[2]= t->center[2]- 6.0f*axis[2];
1152
1153                                 projectIntView(t, axis, t->center2d);
1154
1155                                 /* rotate only needs correct 2d center, grab needs initgrabz() value */
1156                                 if(t->mode==TFM_TRANSLATION)
1157                                 {
1158                                         VECCOPY(t->center, axis);
1159                                         VECCOPY(t->con.center, t->center);
1160                                 }
1161                         }
1162                 }
1163         }
1164
1165         if(t->spacetype==SPACE_VIEW3D)
1166         {
1167                 /* initgrabz() defines a factor for perspective depth correction, used in window_to_3d() */
1168                 if(t->flag & (T_EDIT|T_POSE)) {
1169                         Object *ob= t->obedit?t->obedit:t->poseobj;
1170                         float vec[3];
1171
1172                         VECCOPY(vec, t->center);
1173                         Mat4MulVecfl(ob->obmat, vec);
1174                         initgrabz(t->view, vec[0], vec[1], vec[2]);
1175                 }
1176                 else {
1177                         initgrabz(t->view, t->center[0], t->center[1], t->center[2]);
1178                 }
1179         }
1180 }
1181
1182 void calculatePropRatio(TransInfo *t)
1183 {
1184         TransData *td = t->data;
1185         int i;
1186         float dist;
1187         short connected = t->flag & T_PROP_CONNECTED;
1188
1189         if (t->spacetype == SPACE_NODE) return;
1190
1191         if (t->flag & T_PROP_EDIT) {
1192                 for(i = 0 ; i < t->total; i++, td++) {
1193                         if (td->flag & TD_SELECTED) {
1194                                 td->factor = 1.0f;
1195                         }
1196                         else if ((connected &&
1197                                                 (td->flag & TD_NOTCONNECTED || td->dist > t->propsize))
1198                                 ||
1199                                         (connected == 0 &&
1200                                                 td->rdist > t->propsize)) {
1201                                 /*
1202                                    The elements are sorted according to their dist member in the array,
1203                                    that means we can stop when it finds one element outside of the propsize.
1204                                 */
1205                                 td->flag |= TD_NOACTION;
1206                                 td->factor = 0.0f;
1207                                 restoreElement(td);
1208                         }
1209                         else {
1210                                 /* Use rdist for falloff calculations, it is the real distance */
1211                                 td->flag &= ~TD_NOACTION;
1212                                 dist= (t->propsize-td->rdist)/t->propsize;
1213
1214                                 /*
1215                                  * Clamp to positive numbers.
1216                                  * Certain corner cases with connectivity and individual centers
1217                                  * can give values of rdist larger than propsize.
1218                                  */
1219                                 if (dist < 0.0f)
1220                                         dist = 0.0f;
1221
1222                                 switch(G.scene->prop_mode) {
1223                                 case PROP_SHARP:
1224                                         td->factor= dist*dist;
1225                                         break;
1226                                 case PROP_SMOOTH:
1227                                         td->factor= 3.0f*dist*dist - 2.0f*dist*dist*dist;
1228                                         break;
1229                                 case PROP_ROOT:
1230                                         td->factor = (float)sqrt(dist);
1231                                         break;
1232                                 case PROP_LIN:
1233                                         td->factor = dist;
1234                                         break;
1235                                 case PROP_CONST:
1236                                         td->factor = 1.0f;
1237                                         break;
1238                                 case PROP_SPHERE:
1239                                         td->factor = (float)sqrt(2*dist - dist * dist);
1240                                         break;
1241                                 case PROP_RANDOM:
1242                                         BLI_srand( BLI_rand() ); /* random seed */
1243                                         td->factor = BLI_frand()*dist;
1244                                         break;
1245                                 default:
1246                                         td->factor = 1;
1247                                 }
1248                         }
1249                 }
1250                 switch(G.scene->prop_mode) {
1251                 case PROP_SHARP:
1252                         strcpy(t->proptext, "(Sharp)");
1253                         break;
1254                 case PROP_SMOOTH:
1255                         strcpy(t->proptext, "(Smooth)");
1256                         break;
1257                 case PROP_ROOT:
1258                         strcpy(t->proptext, "(Root)");
1259                         break;
1260                 case PROP_LIN:
1261                         strcpy(t->proptext, "(Linear)");
1262                         break;
1263                 case PROP_CONST:
1264                         strcpy(t->proptext, "(Constant)");
1265                         break;
1266                 case PROP_SPHERE:
1267                         strcpy(t->proptext, "(Sphere)");
1268                         break;
1269                 case PROP_RANDOM:
1270                         strcpy(t->proptext, "(Random)");
1271                         break;
1272                 default:
1273                         strcpy(t->proptext, "");
1274                 }
1275         }
1276         else {
1277                 for(i = 0 ; i < t->total; i++, td++) {
1278                         td->factor = 1.0;
1279                 }
1280                 strcpy(t->proptext, "");
1281         }
1282 }
1283
1284 TransInfo *BIF_GetTransInfo()
1285 {
1286         return NULL;
1287 }
1288
1289 float get_drawsize(View3D *v3d, ScrArea *sa, float *co)
1290 {
1291         float size, vec[3], len1, len2;
1292
1293         /* size calculus, depending ortho/persp settings, like initgrabz() */
1294         size= v3d->persmat[0][3]*co[0]+ v3d->persmat[1][3]*co[1]+ v3d->persmat[2][3]*co[2]+ v3d->persmat[3][3];
1295
1296         VECCOPY(vec, v3d->persinv[0]);
1297         len1= Normalize(vec);
1298         VECCOPY(vec, v3d->persinv[1]);
1299         len2= Normalize(vec);
1300
1301         size*= 0.01f*(len1>len2?len1:len2);
1302
1303         /* correct for window size to make widgets appear fixed size */
1304         if(sa->winx > sa->winy) size*= 1000.0f/(float)sa->winx;
1305         else size*= 1000.0f/(float)sa->winy;
1306
1307         return size;
1308 }