source/blender/editors/screen/screen_edit.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) 2008 Blender Foundation.
  21  * All rights reserved.
  22  *
  23  *
  24  * ***** END GPL LICENSE BLOCK *****
  25  */
  26
  27 #include <string.h>
  28
  29 #include "MEM_guardedalloc.h"
  30
  31 #include "DNA_vec_types.h"
  32 #include "DNA_scene_types.h"
  33 #include "DNA_screen_types.h"
  34 #include "DNA_texture_types.h"
  35 #include "DNA_userdef_types.h"
  36
  37 #include "BLI_blenlib.h"
  38
  39 #include "BKE_context.h"
  40 #include "BKE_global.h"
  41 #include "BKE_library.h"
  42 #include "BKE_main.h"
  43 #include "BKE_node.h"
  44 #include "BKE_screen.h"
  45 #include "BKE_scene.h"
  46 #include "BKE_utildefines.h"
  47
  48 #include "BIF_gl.h"
  49 #include "BIF_glutil.h"
  50
  51 #include "WM_api.h"
  52 #include "WM_types.h"
  53
  54 #include "ED_screen.h"
  55 #include "ED_screen_types.h"
  56
  57 /* XXX actually should be not here... solve later */
  58 #include "wm_subwindow.h"
  59
  60 #include "screen_intern.h"      /* own module include */
  61
  62
  63 /* ******************* screen vert, edge, area managing *********************** */
  64
  65 static ScrVert *screen_addvert(bScreen *sc, short x, short y)
  66 {
  67         ScrVert *sv= MEM_callocN(sizeof(ScrVert), "addscrvert");
  68         sv->vec.x= x;
  69         sv->vec.y= y;
  70
  71         BLI_addtail(&sc->vertbase, sv);
  72         return sv;
  73 }
  74
  75 static void sortscrvert(ScrVert **v1, ScrVert **v2)
  76 {
  77         ScrVert *tmp;
  78
  79         if (*v1 > *v2) {
  80                 tmp= *v1;
  81                 *v1= *v2;
  82                 *v2= tmp;
  83         }
  84 }
  85
  86 static ScrEdge *screen_addedge(bScreen *sc, ScrVert *v1, ScrVert *v2)
  87 {
  88         ScrEdge *se= MEM_callocN(sizeof(ScrEdge), "addscredge");
  89
  90         sortscrvert(&v1, &v2);
  91         se->v1= v1;
  92         se->v2= v2;
  93
  94         BLI_addtail(&sc->edgebase, se);
  95         return se;
  96 }
  97
  98
  99 ScrEdge *screen_findedge(bScreen *sc, ScrVert *v1, ScrVert *v2)
 100 {
 101         ScrEdge *se;
 102
 103         sortscrvert(&v1, &v2);
 104         for (se= sc->edgebase.first; se; se= se->next)
 105                 if(se->v1==v1 && se->v2==v2)
 106                         return se;
 107
 108         return NULL;
 109 }
 110
 111 void removedouble_scrverts(bScreen *sc)
 112 {
 113         ScrVert *v1, *verg;
 114         ScrEdge *se;
 115         ScrArea *sa;
 116
 117         verg= sc->vertbase.first;
 118         while(verg) {
 119                 if(verg->newv==NULL) {  /* !!! */
 120                         v1= verg->next;
 121                         while(v1) {
 122                                 if(v1->newv==NULL) {    /* !?! */
 123                                         if(v1->vec.x==verg->vec.x && v1->vec.y==verg->vec.y) {
 124                                                 /* printf("doublevert\n"); */
 125                                                 v1->newv= verg;
 126                                         }
 127                                 }
 128                                 v1= v1->next;
 129                         }
 130                 }
 131                 verg= verg->next;
 132         }
 133
 134         /* replace pointers in edges and faces */
 135         se= sc->edgebase.first;
 136         while(se) {
 137                 if(se->v1->newv) se->v1= se->v1->newv;
 138                 if(se->v2->newv) se->v2= se->v2->newv;
 139                 /* edges changed: so.... */
 140                 sortscrvert(&(se->v1), &(se->v2));
 141                 se= se->next;
 142         }
 143         sa= sc->areabase.first;
 144         while(sa) {
 145                 if(sa->v1->newv) sa->v1= sa->v1->newv;
 146                 if(sa->v2->newv) sa->v2= sa->v2->newv;
 147                 if(sa->v3->newv) sa->v3= sa->v3->newv;
 148                 if(sa->v4->newv) sa->v4= sa->v4->newv;
 149                 sa= sa->next;
 150         }
 151
 152         /* remove */
 153         verg= sc->vertbase.first;
 154         while(verg) {
 155                 v1= verg->next;
 156                 if(verg->newv) {
 157                         BLI_remlink(&sc->vertbase, verg);
 158                         MEM_freeN(verg);
 159                 }
 160                 verg= v1;
 161         }
 162
 163 }
 164
 165 void removenotused_scrverts(bScreen *sc)
 166 {
 167         ScrVert *sv, *svn;
 168         ScrEdge *se;
 169
 170         /* we assume edges are ok */
 171
 172         se= sc->edgebase.first;
 173         while(se) {
 174                 se->v1->flag= 1;
 175                 se->v2->flag= 1;
 176                 se= se->next;
 177         }
 178
 179         sv= sc->vertbase.first;
 180         while(sv) {
 181                 svn= sv->next;
 182                 if(sv->flag==0) {
 183                         BLI_remlink(&sc->vertbase, sv);
 184                         MEM_freeN(sv);
 185                 }
 186                 else sv->flag= 0;
 187                 sv= svn;
 188         }
 189 }
 190
 191 void removedouble_scredges(bScreen *sc)
 192 {
 193         ScrEdge *verg, *se, *sn;
 194
 195         /* compare */
 196         verg= sc->edgebase.first;
 197         while(verg) {
 198                 se= verg->next;
 199                 while(se) {
 200                         sn= se->next;
 201                         if(verg->v1==se->v1 && verg->v2==se->v2) {
 202                                 BLI_remlink(&sc->edgebase, se);
 203                                 MEM_freeN(se);
 204                         }
 205                         se= sn;
 206                 }
 207                 verg= verg->next;
 208         }
 209 }
 210
 211 void removenotused_scredges(bScreen *sc)
 212 {
 213         ScrEdge *se, *sen;
 214         ScrArea *sa;
 215         int a=0;
 216
 217         /* sets flags when edge is used in area */
 218         sa= sc->areabase.first;
 219         while(sa) {
 220                 se= screen_findedge(sc, sa->v1, sa->v2);
 221                 if(se==0) printf("error: area %d edge 1 doesn't exist\n", a);
 222                 else se->flag= 1;
 223                 se= screen_findedge(sc, sa->v2, sa->v3);
 224                 if(se==0) printf("error: area %d edge 2 doesn't exist\n", a);
 225                 else se->flag= 1;
 226                 se= screen_findedge(sc, sa->v3, sa->v4);
 227                 if(se==0) printf("error: area %d edge 3 doesn't exist\n", a);
 228                 else se->flag= 1;
 229                 se= screen_findedge(sc, sa->v4, sa->v1);
 230                 if(se==0) printf("error: area %d edge 4 doesn't exist\n", a);
 231                 else se->flag= 1;
 232                 sa= sa->next;
 233                 a++;
 234         }
 235         se= sc->edgebase.first;
 236         while(se) {
 237                 sen= se->next;
 238                 if(se->flag==0) {
 239                         BLI_remlink(&sc->edgebase, se);
 240                         MEM_freeN(se);
 241                 }
 242                 else se->flag= 0;
 243                 se= sen;
 244         }
 245 }
 246
 247 int scredge_is_horizontal(ScrEdge *se)
 248 {
 249         return (se->v1->vec.y == se->v2->vec.y);
 250 }
 251
 252 ScrEdge *screen_find_active_scredge(bScreen *sc, int mx, int my)
 253 {
 254         ScrEdge *se;
 255
 256         for (se= sc->edgebase.first; se; se= se->next) {
 257                 if (scredge_is_horizontal(se)) {
 258                         short min, max;
 259                         min= MIN2(se->v1->vec.x, se->v2->vec.x);
 260                         max= MAX2(se->v1->vec.x, se->v2->vec.x);
 261
 262                         if (abs(my-se->v1->vec.y)<=2 && mx>=min && mx<=max)
 263                                 return se;
 264                 }
 265                 else {
 266                         short min, max;
 267                         min= MIN2(se->v1->vec.y, se->v2->vec.y);
 268                         max= MAX2(se->v1->vec.y, se->v2->vec.y);
 269
 270                         if (abs(mx-se->v1->vec.x)<=2 && my>=min && my<=max)
 271                                 return se;
 272                 }
 273         }
 274
 275         return NULL;
 276 }
 277
 278
 279
 280 /* adds no space data */
 281 static ScrArea *screen_addarea(bScreen *sc, ScrVert *v1, ScrVert *v2, ScrVert *v3, ScrVert *v4, short headertype, short spacetype)
 282 {
 283         ScrArea *sa= MEM_callocN(sizeof(ScrArea), "addscrarea");
 284         sa->v1= v1;
 285         sa->v2= v2;
 286         sa->v3= v3;
 287         sa->v4= v4;
 288         sa->headertype= headertype;
 289         sa->spacetype= sa->butspacetype= spacetype;
 290
 291         BLI_addtail(&sc->areabase, sa);
 292
 293         return sa;
 294 }
 295
 296 static void screen_delarea(bContext *C, bScreen *sc, ScrArea *sa)
 297 {
 298
 299         ED_area_exit(C, sa);
 300
 301         BKE_screen_area_free(sa);
 302
 303         BLI_remlink(&sc->areabase, sa);
 304         MEM_freeN(sa);
 305 }
 306
 307 /* return 0: no split possible */
 308 /* else return (integer) screencoordinate split point */
 309 static short testsplitpoint(wmWindow *win, ScrArea *sa, char dir, float fac)
 310 {
 311         short x, y;
 312
 313         // area big enough?
 314         if(dir=='v' && (sa->v4->vec.x- sa->v1->vec.x <= 2*AREAMINX)) return 0;
 315         if(dir=='h' && (sa->v2->vec.y- sa->v1->vec.y <= 2*AREAMINY)) return 0;
 316
 317         // to be sure
 318         if(fac<0.0) fac= 0.0;
 319         if(fac>1.0) fac= 1.0;
 320
 321         if(dir=='h') {
 322                 y= sa->v1->vec.y+ fac*(sa->v2->vec.y- sa->v1->vec.y);
 323
 324                 if(y- sa->v1->vec.y < AREAMINY)
 325                         y= sa->v1->vec.y+ AREAMINY;
 326                 else if(sa->v2->vec.y- y < AREAMINY)
 327                         y= sa->v2->vec.y- AREAMINY;
 328                 else y-= (y % AREAGRID);
 329
 330                 return y;
 331         }
 332         else {
 333                 x= sa->v1->vec.x+ fac*(sa->v4->vec.x- sa->v1->vec.x);
 334
 335                 if(x- sa->v1->vec.x < AREAMINX)
 336                         x= sa->v1->vec.x+ AREAMINX;
 337                 else if(sa->v4->vec.x- x < AREAMINX)
 338                         x= sa->v4->vec.x- AREAMINX;
 339                 else x-= (x % AREAGRID);
 340
 341                 return x;
 342         }
 343 }
 344
 345 ScrArea *area_split(wmWindow *win, bScreen *sc, ScrArea *sa, char dir, float fac)
 346 {
 347         ScrArea *newa=NULL;
 348         ScrVert *sv1, *sv2;
 349         short split;
 350
 351         if(sa==NULL) return NULL;
 352
 353         split= testsplitpoint(win, sa, dir, fac);
 354         if(split==0) return NULL;
 355
 356         if(dir=='h') {
 357                 /* new vertices */
 358                 sv1= screen_addvert(sc, sa->v1->vec.x, split);
 359                 sv2= screen_addvert(sc, sa->v4->vec.x, split);
 360
 361                 /* new edges */
 362                 screen_addedge(sc, sa->v1, sv1);
 363                 screen_addedge(sc, sv1, sa->v2);
 364                 screen_addedge(sc, sa->v3, sv2);
 365                 screen_addedge(sc, sv2, sa->v4);
 366                 screen_addedge(sc, sv1, sv2);
 367
 368                 /* new areas: top */
 369                 newa= screen_addarea(sc, sv1, sa->v2, sa->v3, sv2, sa->headertype, sa->spacetype);
 370                 area_copy_data(newa, sa, 0);
 371
 372                 /* area below */
 373                 sa->v2= sv1;
 374                 sa->v3= sv2;
 375
 376         }
 377         else {
 378                 /* new vertices */
 379                 sv1= screen_addvert(sc, split, sa->v1->vec.y);
 380                 sv2= screen_addvert(sc, split, sa->v2->vec.y);
 381
 382                 /* new edges */
 383                 screen_addedge(sc, sa->v1, sv1);
 384                 screen_addedge(sc, sv1, sa->v4);
 385                 screen_addedge(sc, sa->v2, sv2);
 386                 screen_addedge(sc, sv2, sa->v3);
 387                 screen_addedge(sc, sv1, sv2);
 388
 389                 /* new areas: left */
 390                 newa= screen_addarea(sc, sa->v1, sa->v2, sv2, sv1, sa->headertype, sa->spacetype);
 391                 area_copy_data(newa, sa, 0);
 392
 393                 /* area right */
 394                 sa->v1= sv1;
 395                 sa->v2= sv2;
 396         }
 397
 398         /* remove double vertices en edges */
 399         removedouble_scrverts(sc);
 400         removedouble_scredges(sc);
 401         removenotused_scredges(sc);
 402
 403         return newa;
 404 }
 405
 406 /* empty screen, with 1 dummy area without spacedata */
 407 /* uses window size */
 408 bScreen *ED_screen_add(wmWindow *win, Scene *scene, char *name)
 409 {
 410         bScreen *sc;
 411         ScrVert *sv1, *sv2, *sv3, *sv4;
 412
 413         sc= alloc_libblock(&G.main->screen, ID_SCR, name);
 414         sc->scene= scene;
 415         sc->do_refresh= 1;
 416         sc->winid= win->winid;
 417
 418         sv1= screen_addvert(sc, 0, 0);
 419         sv2= screen_addvert(sc, 0, win->sizey-1);
 420         sv3= screen_addvert(sc, win->sizex-1, win->sizey-1);
 421         sv4= screen_addvert(sc, win->sizex-1, 0);
 422
 423         screen_addedge(sc, sv1, sv2);
 424         screen_addedge(sc, sv2, sv3);
 425         screen_addedge(sc, sv3, sv4);
 426         screen_addedge(sc, sv4, sv1);
 427
 428         /* dummy type, no spacedata */
 429         screen_addarea(sc, sv1, sv2, sv3, sv4, HEADERDOWN, SPACE_EMPTY);
 430
 431         return sc;
 432 }
 433
 434 static void screen_copy(bScreen *to, bScreen *from)
 435 {
 436         ScrVert *s1, *s2;
 437         ScrEdge *se;
 438         ScrArea *sa, *saf;
 439
 440         /* free contents of 'to', is from blenkernel screen.c */
 441         free_screen(to);
 442
 443         BLI_duplicatelist(&to->vertbase, &from->vertbase);
 444         BLI_duplicatelist(&to->edgebase, &from->edgebase);
 445         BLI_duplicatelist(&to->areabase, &from->areabase);
 446         to->regionbase.first= to->regionbase.last= NULL;
 447
 448         s2= to->vertbase.first;
 449         for(s1= from->vertbase.first; s1; s1= s1->next, s2= s2->next) {
 450                 s1->newv= s2;
 451         }
 452
 453         for(se= to->edgebase.first; se; se= se->next) {
 454                 se->v1= se->v1->newv;
 455                 se->v2= se->v2->newv;
 456                 sortscrvert(&(se->v1), &(se->v2));
 457         }
 458
 459         saf= from->areabase.first;
 460         for(sa= to->areabase.first; sa; sa= sa->next, saf= saf->next) {
 461                 sa->v1= sa->v1->newv;
 462                 sa->v2= sa->v2->newv;
 463                 sa->v3= sa->v3->newv;
 464                 sa->v4= sa->v4->newv;
 465
 466                 sa->spacedata.first= sa->spacedata.last= NULL;
 467                 sa->regionbase.first= sa->regionbase.last= NULL;
 468                 sa->actionzones.first= sa->actionzones.last= NULL;
 469
 470                 area_copy_data(sa, saf, 0);
 471         }
 472
 473         /* put at zero (needed?) */
 474         for(s1= from->vertbase.first; s1; s1= s1->next)
 475                 s1->newv= NULL;
 476
 477 }
 478
 479
 480 /* with sa as center, sb is located at: 0=W, 1=N, 2=E, 3=S */
 481 /* -1 = not valid check */
 482 /* used with join operator */
 483 int area_getorientation(bScreen *screen, ScrArea *sa, ScrArea *sb)
 484 {
 485         ScrVert *sav1, *sav2, *sav3, *sav4;
 486         ScrVert *sbv1, *sbv2, *sbv3, *sbv4;
 487
 488         if(sa==NULL || sb==NULL) return -1;
 489
 490         sav1= sa->v1;
 491         sav2= sa->v2;
 492         sav3= sa->v3;
 493         sav4= sa->v4;
 494         sbv1= sb->v1;
 495         sbv2= sb->v2;
 496         sbv3= sb->v3;
 497         sbv4= sb->v4;
 498
 499         if(sav1==sbv4 && sav2==sbv3) { /* sa to right of sb = W */
 500                 return 0;
 501         }
 502         else if(sav2==sbv1 && sav3==sbv4) { /* sa to bottom of sb = N */
 503                 return 1;
 504         }
 505         else if(sav3==sbv2 && sav4==sbv1) { /* sa to left of sb = E */
 506                 return 2;
 507         }
 508         else if(sav1==sbv2 && sav4==sbv3) { /* sa on top of sb = S*/
 509                 return 3;
 510         }
 511
 512         return -1;
 513 }
 514
 515 /* Helper function to join 2 areas, it has a return value, 0=failed 1=success
 516 *       used by the split, join operators
 517 */
 518 int screen_area_join(bContext *C, bScreen* scr, ScrArea *sa1, ScrArea *sa2)
 519 {
 520         int dir;
 521
 522         dir = area_getorientation(scr, sa1, sa2);
 523         /*printf("dir is : %i \n", dir);*/
 524
 525         if (dir < 0)
 526         {
 527                 if (sa1 ) sa1->flag &= ~AREA_FLAG_DRAWJOINFROM;
 528                 if (sa2 ) sa2->flag &= ~AREA_FLAG_DRAWJOINTO;
 529                 return 0;
 530         }
 531
 532         if(dir == 0) {
 533                 sa1->v1= sa2->v1;
 534                 sa1->v2= sa2->v2;
 535                 screen_addedge(scr, sa1->v2, sa1->v3);
 536                 screen_addedge(scr, sa1->v1, sa1->v4);
 537         }
 538         else if(dir == 1) {
 539                 sa1->v2= sa2->v2;
 540                 sa1->v3= sa2->v3;
 541                 screen_addedge(scr, sa1->v1, sa1->v2);
 542                 screen_addedge(scr, sa1->v3, sa1->v4);
 543         }
 544         else if(dir == 2) {
 545                 sa1->v3= sa2->v3;
 546                 sa1->v4= sa2->v4;
 547                 screen_addedge(scr, sa1->v2, sa1->v3);
 548                 screen_addedge(scr, sa1->v1, sa1->v4);
 549         }
 550         else if(dir == 3) {
 551                 sa1->v1= sa2->v1;
 552                 sa1->v4= sa2->v4;
 553                 screen_addedge(scr, sa1->v1, sa1->v2);
 554                 screen_addedge(scr, sa1->v3, sa1->v4);
 555         }
 556
 557         screen_delarea(C, scr, sa2);
 558         removedouble_scrverts(scr);
 559         sa1->flag &= ~AREA_FLAG_DRAWJOINFROM;
 560
 561         return 1;
 562 }
 563
 564 void select_connected_scredge(bScreen *sc, ScrEdge *edge)
 565 {
 566         ScrEdge *se;
 567         ScrVert *sv;
 568         int oneselected;
 569         char dir;
 570
 571         /* select connected, only in the right direction */
 572         /* 'dir' is the direction of EDGE */
 573
 574         if(edge->v1->vec.x==edge->v2->vec.x) dir= 'v';
 575         else dir= 'h';
 576
 577         sv= sc->vertbase.first;
 578         while(sv) {
 579                 sv->flag = 0;
 580                 sv= sv->next;
 581         }
 582
 583         edge->v1->flag= 1;
 584         edge->v2->flag= 1;
 585
 586         oneselected= 1;
 587         while(oneselected) {
 588                 se= sc->edgebase.first;
 589                 oneselected= 0;
 590                 while(se) {
 591                         if(se->v1->flag + se->v2->flag==1) {
 592                                 if(dir=='h') if(se->v1->vec.y==se->v2->vec.y) {
 593                                         se->v1->flag= se->v2->flag= 1;
 594                                         oneselected= 1;
 595                                 }
 596                                         if(dir=='v') if(se->v1->vec.x==se->v2->vec.x) {
 597                                                 se->v1->flag= se->v2->flag= 1;
 598                                                 oneselected= 1;
 599                                         }
 600                         }
 601                                 se= se->next;
 602                 }
 603         }
 604 }
 605
 606 /* test if screen vertices should be scaled */
 607 static void screen_test_scale(bScreen *sc, int winsizex, int winsizey)
 608 {
 609         ScrVert *sv=NULL;
 610         ScrArea *sa;
 611         int sizex, sizey;
 612         float facx, facy, tempf, min[2], max[2];
 613
 614         /* calculate size */
 615         min[0]= min[1]= 10000.0f;
 616         max[0]= max[1]= 0.0f;
 617
 618         for(sv= sc->vertbase.first; sv; sv= sv->next) {
 619                 min[0]= MIN2(min[0], sv->vec.x);
 620                 min[1]= MIN2(min[1], sv->vec.y);
 621                 max[0]= MAX2(max[0], sv->vec.x);
 622                 max[1]= MAX2(max[1], sv->vec.y);
 623         }
 624
 625         /* always make 0.0 left under */
 626         for(sv= sc->vertbase.first; sv; sv= sv->next) {
 627                 sv->vec.x -= min[0];
 628                 sv->vec.y -= min[1];
 629         }
 630
 631         sizex= max[0]-min[0];
 632         sizey= max[1]-min[1];
 633
 634         if(sizex!= winsizex || sizey!= winsizey) {
 635                 facx= winsizex;
 636                 facx/= (float)sizex;
 637                 facy= winsizey;
 638                 facy/= (float)sizey;
 639
 640                 /* make sure it fits! */
 641                 for(sv= sc->vertbase.first; sv; sv= sv->next) {
 642                         tempf= ((float)sv->vec.x)*facx;
 643                         sv->vec.x= (short)(tempf+0.5);
 644                         sv->vec.x+= AREAGRID-1;
 645                         sv->vec.x-=  (sv->vec.x % AREAGRID);
 646
 647                         CLAMP(sv->vec.x, 0, winsizex);
 648
 649                         tempf= ((float)sv->vec.y )*facy;
 650                         sv->vec.y= (short)(tempf+0.5);
 651                         sv->vec.y+= AREAGRID-1;
 652                         sv->vec.y-=  (sv->vec.y % AREAGRID);
 653
 654                         CLAMP(sv->vec.y, 0, winsizey);
 655                 }
 656         }
 657
 658         /* test for collapsed areas. This could happen in some blender version... */
 659         /* ton: removed option now, it needs Context... */
 660
 661         /* make each window at least HEADERY high */
 662         for(sa= sc->areabase.first; sa; sa= sa->next) {
 663                 int headery= HEADERY+1;
 664
 665                 if(sa->v1->vec.y+headery > sa->v2->vec.y) {
 666                         /* lower edge */
 667                         ScrEdge *se= screen_findedge(sc, sa->v4, sa->v1);
 668                         if(se && sa->v1!=sa->v2 ) {
 669                                 int yval;
 670
 671                                 select_connected_scredge(sc, se);
 672
 673                                 /* all selected vertices get the right offset */
 674                                 yval= sa->v2->vec.y-headery;
 675                                 sv= sc->vertbase.first;
 676                                 while(sv) {
 677                                         /* if is a collapsed area */
 678                                         if(sv!=sa->v2 && sv!=sa->v3) {
 679                                                 if(sv->flag) sv->vec.y= yval;
 680                                         }
 681                                         sv= sv->next;
 682                                 }
 683                         }
 684                 }
 685         }
 686
 687 }
 688
 689 /* *********************** DRAWING **************************************** */
 690
 691
 692 #define SCR_BACK 0.55
 693 #define SCR_ROUND 12
 694
 695 /* draw vertical shape visualising future joining (left as well
 696  * right direction of future joining) */
 697 static void draw_horizontal_join_shape(ScrArea *sa, char dir)
 698 {
 699         vec2f points[10];
 700         short i;
 701         float w, h;
 702         float width = sa->v3->vec.x - sa->v1->vec.x;
 703         float height = sa->v3->vec.y - sa->v1->vec.y;
 704
 705         if(height<width) {
 706                 h = height/8;
 707                 w = height/4;
 708         }
 709         else {
 710                 h = width/8;
 711                 w = width/4;
 712         }
 713
 714         points[0].x = sa->v1->vec.x;
 715         points[0].y = sa->v1->vec.y + height/2;
 716
 717         points[1].x = sa->v1->vec.x;
 718         points[1].y = sa->v1->vec.y;
 719
 720         points[2].x = sa->v4->vec.x - w;
 721         points[2].y = sa->v4->vec.y;
 722
 723         points[3].x = sa->v4->vec.x - w;
 724         points[3].y = sa->v4->vec.y + height/2 - 2*h;
 725
 726         points[4].x = sa->v4->vec.x - 2*w;
 727         points[4].y = sa->v4->vec.y + height/2;
 728
 729         points[5].x = sa->v4->vec.x - w;
 730         points[5].y = sa->v4->vec.y + height/2 + 2*h;
 731
 732         points[6].x = sa->v3->vec.x - w;
 733         points[6].y = sa->v3->vec.y;
 734
 735         points[7].x = sa->v2->vec.x;
 736         points[7].y = sa->v2->vec.y;
 737
 738         points[8].x = sa->v4->vec.x;
 739         points[8].y = sa->v4->vec.y + height/2 - h;
 740
 741         points[9].x = sa->v4->vec.x;
 742         points[9].y = sa->v4->vec.y + height/2 + h;
 743
 744         if(dir=='l') {
 745                 /* when direction is left, then we flip direction of arrow */
 746                 float cx = sa->v1->vec.x + width;
 747                 for(i=0;i<10;i++) {
 748                         points[i].x -= cx;
 749                         points[i].x = -points[i].x;
 750                         points[i].x += sa->v1->vec.x;
 751                 }
 752         }
 753
 754         glBegin(GL_POLYGON);
 755         for(i=0;i<5;i++)
 756                 glVertex2f(points[i].x, points[i].y);
 757         glEnd();
 758         glBegin(GL_POLYGON);
 759         for(i=4;i<8;i++)
 760                 glVertex2f(points[i].x, points[i].y);
 761         glVertex2f(points[0].x, points[0].y);
 762         glEnd();
 763
 764         glRectf(points[2].x, points[2].y, points[8].x, points[8].y);
 765         glRectf(points[6].x, points[6].y, points[9].x, points[9].y);
 766 }
 767
 768 /* draw vertical shape visualising future joining (up/down direction) */
 769 static void draw_vertical_join_shape(ScrArea *sa, char dir)
 770 {
 771         vec2f points[10];
 772         short i;
 773         float w, h;
 774         float width = sa->v3->vec.x - sa->v1->vec.x;
 775         float height = sa->v3->vec.y - sa->v1->vec.y;
 776
 777         if(height<width) {
 778                 h = height/4;
 779                 w = height/8;
 780         }
 781         else {
 782                 h = width/4;
 783                 w = width/8;
 784         }
 785
 786         points[0].x = sa->v1->vec.x + width/2;
 787         points[0].y = sa->v3->vec.y;
 788
 789         points[1].x = sa->v2->vec.x;
 790         points[1].y = sa->v2->vec.y;
 791
 792         points[2].x = sa->v1->vec.x;
 793         points[2].y = sa->v1->vec.y + h;
 794
 795         points[3].x = sa->v1->vec.x + width/2 - 2*w;
 796         points[3].y = sa->v1->vec.y + h;
 797
 798         points[4].x = sa->v1->vec.x + width/2;
 799         points[4].y = sa->v1->vec.y + 2*h;
 800
 801         points[5].x = sa->v1->vec.x + width/2 + 2*w;
 802         points[5].y = sa->v1->vec.y + h;
 803
 804         points[6].x = sa->v4->vec.x;
 805         points[6].y = sa->v4->vec.y + h;
 806
 807         points[7].x = sa->v3->vec.x;
 808         points[7].y = sa->v3->vec.y;
 809
 810         points[8].x = sa->v1->vec.x + width/2 - w;
 811         points[8].y = sa->v1->vec.y;
 812
 813         points[9].x = sa->v1->vec.x + width/2 + w;
 814         points[9].y = sa->v1->vec.y;
 815
 816         if(dir=='u') {
 817                 /* when direction is up, then we flip direction of arrow */
 818                 float cy = sa->v1->vec.y + height;
 819                 for(i=0;i<10;i++) {
 820                         points[i].y -= cy;
 821                         points[i].y = -points[i].y;
 822                         points[i].y += sa->v1->vec.y;
 823                 }
 824         }
 825
 826         glBegin(GL_POLYGON);
 827         for(i=0;i<5;i++)
 828                 glVertex2f(points[i].x, points[i].y);
 829         glEnd();
 830         glBegin(GL_POLYGON);
 831         for(i=4;i<8;i++)
 832                 glVertex2f(points[i].x, points[i].y);
 833         glVertex2f(points[0].x, points[0].y);
 834         glEnd();
 835
 836         glRectf(points[2].x, points[2].y, points[8].x, points[8].y);
 837         glRectf(points[6].x, points[6].y, points[9].x, points[9].y);
 838 }
 839
 840 /* draw join shape due to direction of joining */
 841 static void draw_join_shape(ScrArea *sa, char dir)
 842 {
 843         if(dir=='u' || dir=='d')
 844                 draw_vertical_join_shape(sa, dir);
 845         else
 846                 draw_horizontal_join_shape(sa, dir);
 847 }
 848
 849 /* draw screen area darker with arrow (visualisation of future joining) */
 850 static void scrarea_draw_shape_dark(ScrArea *sa, char dir)
 851 {
 852         glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
 853         glEnable(GL_BLEND);
 854         glColor4ub(0, 0, 0, 50);
 855         draw_join_shape(sa, dir);
 856         glDisable(GL_BLEND);
 857 }
 858
 859 /* draw screen area ligher with arrow shape ("eraser" of previous dark shape) */
 860 static void scrarea_draw_shape_light(ScrArea *sa, char dir)
 861 {
 862         glBlendFunc(GL_DST_COLOR, GL_SRC_ALPHA);
 863         glEnable(GL_BLEND);
 864         /* value 181 was hardly computed: 181~105 */
 865         glColor4ub(255, 255, 255, 50);
 866         /* draw_join_shape(sa, dir); */
 867         glRecti(sa->v1->vec.x, sa->v1->vec.y, sa->v3->vec.x, sa->v3->vec.y);
 868         glDisable(GL_BLEND);
 869 }
 870
 871 static void drawscredge_area_draw(int sizex, int sizey, short x1, short y1, short x2, short y2, short a)
 872 {
 873         /* right border area */
 874         if(x2<sizex-1)
 875                 sdrawline(x2+a, y1, x2+a, y2);
 876
 877         /* left border area */
 878         if(x1>0)  /* otherwise it draws the emboss of window over */
 879                 sdrawline(x1+a, y1, x1+a, y2);
 880
 881         /* top border area */
 882         if(y2<sizey-1)
 883                 sdrawline(x1, y2+a, x2, y2+a);
 884
 885         /* bottom border area */
 886         if(y1>0)
 887                 sdrawline(x1, y1+a, x2, y1+a);
 888
 889 }
 890
 891 /** screen edges drawing **/
 892 static void drawscredge_area(ScrArea *sa, int sizex, int sizey, int center)
 893 {
 894         short x1= sa->v1->vec.x;
 895         short y1= sa->v1->vec.y;
 896         short x2= sa->v3->vec.x;
 897         short y2= sa->v3->vec.y;
 898         short a, rt;
 899
 900         rt= CLAMPIS(G.rt, 0, 16);
 901
 902         if(center==0) {
 903                 cpack(0x505050);
 904                 for(a=-rt; a<=rt; a++)
 905                         if(a!=0)
 906                                 drawscredge_area_draw(sizex, sizey, x1, y1, x2, y2, a);
 907         }
 908         else {
 909                 cpack(0x0);
 910                 drawscredge_area_draw(sizex, sizey, x1, y1, x2, y2, 0);
 911         }
 912 }
 913
 914 /* ****************** EXPORTED API TO OTHER MODULES *************************** */
 915
 916 bScreen *ED_screen_duplicate(wmWindow *win, bScreen *sc)
 917 {
 918         bScreen *newsc;
 919
 920         if(sc->full != SCREENNORMAL) return NULL; /* XXX handle this case! */
 921
 922         /* make new empty screen: */
 923         newsc= ED_screen_add(win, sc->scene, sc->id.name+2);
 924         /* copy all data */
 925         screen_copy(newsc, sc);
 926         /* set in window */
 927         win->screen= newsc;
 928
 929         /* store identifier */
 930         win->screen->winid= win->winid;
 931         BLI_strncpy(win->screenname, win->screen->id.name+2, 21);
 932
 933         return newsc;
 934 }
 935
 936 /* screen sets cursor based on swinid */
 937 static void region_cursor_set(wmWindow *win, int swinid)
 938 {
 939         ScrArea *sa= win->screen->areabase.first;
 940
 941         for(;sa; sa= sa->next) {
 942                 ARegion *ar= sa->regionbase.first;
 943                 for(;ar; ar= ar->next) {
 944                         if(ar->swinid == swinid) {
 945                                 if(ar->type && ar->type->cursor)
 946                                         ar->type->cursor(win, sa, ar);
 947                                 else
 948                                         WM_cursor_set(win, CURSOR_STD);
 949                                 return;
 950                         }
 951                 }
 952         }
 953 }
 954
 955 void ED_screen_do_listen(wmWindow *win, wmNotifier *note)
 956 {
 957
 958         /* generic notes */
 959         switch(note->category) {
 960                 case NC_WM:
 961                         if(note->data==ND_FILEREAD)
 962                                 win->screen->do_draw= 1;
 963                         break;
 964                 case NC_WINDOW:
 965                         win->screen->do_draw= 1;
 966                         break;
 967                 case NC_SCREEN:
 968                         if(note->action==NA_EDITED)
 969                                 win->screen->do_draw= win->screen->do_refresh= 1;
 970                 case NC_SCENE:
 971                         if(note->data==ND_MODE)
 972                                 region_cursor_set(win, note->swinid);
 973                         break;
 974         }
 975 }
 976
 977 /* only for edge lines between areas, and the blended join arrows */
 978 void ED_screen_draw(wmWindow *win)
 979 {
 980         ScrArea *sa;
 981         ScrArea *sa1=NULL;
 982         ScrArea *sa2=NULL;
 983         int dir = -1;
 984         int dira = -1;
 985
 986         wmSubWindowSet(win, win->screen->mainwin);
 987
 988         for(sa= win->screen->areabase.first; sa; sa= sa->next) {
 989                 if (sa->flag & AREA_FLAG_DRAWJOINFROM) sa1 = sa;
 990                 if (sa->flag & AREA_FLAG_DRAWJOINTO) sa2 = sa;
 991                 drawscredge_area(sa, win->sizex, win->sizey, 0);
 992         }
 993         for(sa= win->screen->areabase.first; sa; sa= sa->next)
 994                 drawscredge_area(sa, win->sizex, win->sizey, 1);
 995
 996         /* blended join arrow */
 997         if (sa1 && sa2) {
 998                 dir = area_getorientation(win->screen, sa1, sa2);
 999                 if (dir >= 0) {
1000                         switch(dir) {
1001                                 case 0: /* W */
1002                                         dir = 'r';
1003                                         dira = 'l';
1004                                         break;
1005                                 case 1: /* N */
1006                                         dir = 'd';
1007                                         dira = 'u';
1008                                         break;
1009                                 case 2: /* E */
1010                                         dir = 'l';
1011                                         dira = 'r';
1012                                         break;
1013                                 case 3: /* S */
1014                                         dir = 'u';
1015                                         dira = 'd';
1016                                         break;
1017                         }
1018                 }
1019                 scrarea_draw_shape_dark(sa2, dir);
1020                 scrarea_draw_shape_light(sa1, dira);
1021         }
1022
1023 //      if(G.f & G_DEBUG) printf("draw screen\n");
1024         win->screen->do_draw= 0;
1025 }
1026
1027 /* make this screen usable */
1028 /* for file read and first use, for scaling window, area moves */
1029 void ED_screen_refresh(wmWindowManager *wm, wmWindow *win)
1030 {
1031         ScrArea *sa;
1032         rcti winrct= {0, win->sizex-1, 0, win->sizey-1};
1033
1034         screen_test_scale(win->screen, win->sizex, win->sizey);
1035
1036         if(win->screen->mainwin==0)
1037                 win->screen->mainwin= wm_subwindow_open(win, &winrct);
1038         else
1039                 wm_subwindow_position(win, win->screen->mainwin, &winrct);
1040
1041         for(sa= win->screen->areabase.first; sa; sa= sa->next) {
1042                 /* set spacetype and region callbacks, calls init() */
1043                 /* sets subwindows for regions, adds handlers */
1044                 ED_area_initialize(wm, win, sa);
1045         }
1046
1047         /* wake up animtimer */
1048         if(win->screen->animtimer)
1049                 WM_event_window_timer_sleep(win, win->screen->animtimer, 0);
1050
1051         if(G.f & G_DEBUG) printf("set screen\n");
1052         win->screen->do_refresh= 0;
1053
1054         win->screen->context= ed_screen_context;
1055 }
1056
1057 /* file read, set all screens, ... */
1058 void ED_screens_initialize(wmWindowManager *wm)
1059 {
1060         wmWindow *win;
1061
1062         for(win= wm->windows.first; win; win= win->next) {
1063
1064                 if(win->screen==NULL)
1065                         win->screen= G.main->screen.first;
1066
1067                 ED_screen_refresh(wm, win);
1068         }
1069 }
1070
1071
1072 /* *********** exit calls are for closing running stuff ******** */
1073
1074 void ED_region_exit(bContext *C, ARegion *ar)
1075 {
1076         ARegion *prevar= CTX_wm_region(C);
1077
1078         CTX_wm_region_set(C, ar);
1079         WM_event_remove_handlers(C, &ar->handlers);
1080         if(ar->swinid)
1081                 wm_subwindow_close(CTX_wm_window(C), ar->swinid);
1082         ar->swinid= 0;
1083
1084         if(ar->headerstr)
1085                 MEM_freeN(ar->headerstr);
1086         ar->headerstr= NULL;
1087
1088         CTX_wm_region_set(C, prevar);
1089 }
1090
1091 void ED_area_exit(bContext *C, ScrArea *sa)
1092 {
1093         ScrArea *prevsa= CTX_wm_area(C);
1094         ARegion *ar;
1095
1096         CTX_wm_area_set(C, sa);
1097         for(ar= sa->regionbase.first; ar; ar= ar->next)
1098                 ED_region_exit(C, ar);
1099
1100         WM_event_remove_handlers(C, &sa->handlers);
1101         CTX_wm_area_set(C, prevsa);
1102 }
1103
1104 void ED_screen_exit(bContext *C, wmWindow *window, bScreen *screen)
1105 {
1106         wmWindow *prevwin= CTX_wm_window(C);
1107         ScrArea *sa;
1108         ARegion *ar;
1109
1110         CTX_wm_window_set(C, window);
1111
1112         if(screen->animtimer)
1113                 WM_event_remove_window_timer(window, screen->animtimer);
1114         screen->animtimer= NULL;
1115
1116         if(screen->mainwin)
1117                 wm_subwindow_close(window, screen->mainwin);
1118         screen->mainwin= 0;
1119         screen->subwinactive= 0;
1120
1121         for(ar= screen->regionbase.first; ar; ar= ar->next)
1122                 ED_region_exit(C, ar);
1123
1124         for(sa= screen->areabase.first; sa; sa= sa->next)
1125                 ED_area_exit(C, sa);
1126
1127         /* mark it available for use for other windows */
1128         screen->winid= 0;
1129
1130         CTX_wm_window_set(C, prevwin);
1131 }
1132
1133 /* *********************************** */
1134
1135 /* case when on area-edge or in azones, or outside window */
1136 static void screen_cursor_set(wmWindow *win, wmEvent *event)
1137 {
1138         AZone *az= NULL;
1139         ScrArea *sa;
1140
1141         for(sa= win->screen->areabase.first; sa; sa= sa->next)
1142                 if((az=is_in_area_actionzone(sa, event->x, event->y)))
1143                         break;
1144
1145         if(sa) {
1146                 if(az->type==AZONE_AREA)
1147                         WM_cursor_set(win, CURSOR_EDIT);
1148                 else if(az->type==AZONE_REGION) {
1149                         if(az->x1==az->x2)
1150                                 WM_cursor_set(win, CURSOR_X_MOVE);
1151                         else
1152                                 WM_cursor_set(win, CURSOR_Y_MOVE);
1153                 }
1154         }
1155         else {
1156                 ScrEdge *actedge= screen_find_active_scredge(win->screen, event->x, event->y);
1157
1158                 if (actedge) {
1159                         if(scredge_is_horizontal(actedge))
1160                                 WM_cursor_set(win, CURSOR_Y_MOVE);
1161                         else
1162                                 WM_cursor_set(win, CURSOR_X_MOVE);
1163                 }
1164                 else
1165                         WM_cursor_set(win, CURSOR_STD);
1166         }
1167 }
1168
1169
1170 /* called in wm_event_system.c. sets state vars in screen, cursors */
1171 /* event type is mouse move */
1172 void ED_screen_set_subwinactive(wmWindow *win, wmEvent *event)
1173 {
1174         if(win->screen) {
1175                 bScreen *scr= win->screen;
1176                 ScrArea *sa;
1177                 ARegion *ar;
1178                 int oldswin= scr->subwinactive;
1179
1180                 for(sa= scr->areabase.first; sa; sa= sa->next) {
1181                         if(event->x > sa->totrct.xmin && event->x < sa->totrct.xmax)
1182                                 if(event->y > sa->totrct.ymin && event->y < sa->totrct.ymax)
1183                                         if(NULL==is_in_area_actionzone(sa, event->x, event->y))
1184                                                 break;
1185                 }
1186                 if(sa) {
1187                         for(ar= sa->regionbase.first; ar; ar= ar->next) {
1188                                 if(BLI_in_rcti(&ar->winrct, event->x, event->y))
1189                                         scr->subwinactive= ar->swinid;
1190                         }
1191                 }
1192                 else
1193                         scr->subwinactive= scr->mainwin;
1194
1195                 /* check for redraw headers */
1196                 if(oldswin!=scr->subwinactive) {
1197
1198                         for(sa= scr->areabase.first; sa; sa= sa->next) {
1199                                 int do_draw= 0;
1200
1201                                 for(ar= sa->regionbase.first; ar; ar= ar->next)
1202                                         if(ar->swinid==oldswin || ar->swinid==scr->subwinactive)
1203                                                 do_draw= 1;
1204
1205                                 if(do_draw) {
1206                                         for(ar= sa->regionbase.first; ar; ar= ar->next)
1207                                                 if(ar->regiontype==RGN_TYPE_HEADER)
1208                                                         ED_region_tag_redraw(ar);
1209                                 }
1210                         }
1211                 }
1212
1213                 /* cursors, for time being set always on edges, otherwise aregion doesnt switch */
1214                 if(scr->subwinactive==scr->mainwin) {
1215                         screen_cursor_set(win, event);
1216                 }
1217                 else if(oldswin!=scr->subwinactive) {
1218                         region_cursor_set(win, scr->subwinactive);
1219                 }
1220         }
1221 }
1222
1223 int ED_screen_area_active(const bContext *C)
1224 {
1225         bScreen *sc= CTX_wm_screen(C);
1226         ScrArea *sa= CTX_wm_area(C);
1227
1228         if(sc && sa) {
1229                 ARegion *ar;
1230                 for(ar= sa->regionbase.first; ar; ar= ar->next)
1231                         if(ar->swinid == sc->subwinactive)
1232                                 return 1;
1233         }
1234         return 0;
1235 }
1236
1237 /* operator call, WM + Window + screen already existed before */
1238 /* Do NOT call in area/region queues! */
1239 void ED_screen_set(bContext *C, bScreen *sc)
1240 {
1241         wmWindow *win= CTX_wm_window(C);
1242         bScreen *oldscreen= CTX_wm_screen(C);
1243         ID *id;
1244
1245         /* validate screen, it's called with notifier reference */
1246         for(id= CTX_data_main(C)->screen.first; id; id= id->next)
1247                 if(sc == (bScreen *)id)
1248                         break;
1249         if(id==NULL)
1250                 return;
1251
1252         /* check for valid winid */
1253         if(sc->winid!=0 && sc->winid!=win->winid)
1254                 return;
1255
1256         if(sc->full) {                          /* find associated full */
1257                 bScreen *sc1;
1258                 for(sc1= CTX_data_main(C)->screen.first; sc1; sc1= sc1->id.next) {
1259                         ScrArea *sa= sc1->areabase.first;
1260                         if(sa->full==sc) {
1261                                 sc= sc1;
1262                                 break;
1263                         }
1264                 }
1265         }
1266
1267         if (oldscreen != sc) {
1268                 wmTimer *wt= oldscreen->animtimer;
1269
1270                 /* we put timer to sleep, so screen_exit has to think there's no timer */
1271                 oldscreen->animtimer= NULL;
1272                 if(wt)
1273                         WM_event_window_timer_sleep(win, wt, 1);
1274
1275                 ED_screen_exit(C, win, oldscreen);
1276                 oldscreen->animtimer= wt;
1277
1278                 win->screen= sc;
1279                 CTX_wm_window_set(C, win);      // stores C->wm.screen... hrmf
1280
1281                 /* prevent multiwin errors */
1282                 sc->winid= win->winid;
1283
1284                 ED_screen_refresh(CTX_wm_manager(C), CTX_wm_window(C));
1285                 WM_event_add_notifier(C, NC_WINDOW, NULL);
1286
1287                 /* makes button hilites work */
1288                 WM_event_add_mousemove(C);
1289         }
1290 }
1291
1292 /* only call outside of area/region loops */
1293 void ED_screen_set_scene(bContext *C, Scene *scene)
1294 {
1295         bScreen *sc;
1296         bScreen *curscreen= CTX_wm_screen(C);
1297
1298         for(sc= CTX_data_main(C)->screen.first; sc; sc= sc->id.next) {
1299                 if((U.flag & USER_SCENEGLOBAL) || sc==curscreen) {
1300
1301                         if(scene != sc->scene) {
1302                                 /* all areas endlocalview */
1303                         // XXX  ScrArea *sa= sc->areabase.first;
1304                         //      while(sa) {
1305                         //              endlocalview(sa);
1306                         //              sa= sa->next;
1307                         //      }
1308                                 sc->scene= scene;
1309                         }
1310
1311                 }
1312         }
1313
1314         //  copy_view3d_lock(0);        /* space.c */
1315
1316         /* are there cameras in the views that are not in the scene? */
1317         for(sc= CTX_data_main(C)->screen.first; sc; sc= sc->id.next) {
1318                 if( (U.flag & USER_SCENEGLOBAL) || sc==curscreen) {
1319                         ScrArea *sa= sc->areabase.first;
1320                         while(sa) {
1321                                 SpaceLink *sl= sa->spacedata.first;
1322                                 while(sl) {
1323                                         if(sl->spacetype==SPACE_VIEW3D) {
1324                                                 View3D *v3d= (View3D*) sl;
1325                                                 if (!v3d->camera || !object_in_scene(v3d->camera, scene)) {
1326                                                         v3d->camera= scene_find_camera(sc->scene);
1327                                                         // XXX if (sc==curscreen) handle_view3d_lock();
1328                                                         if (!v3d->camera && v3d->persp==V3D_CAMOB)
1329                                                                 v3d->persp= V3D_PERSP;
1330                                                 }
1331                                         }
1332                                         sl= sl->next;
1333                                 }
1334                                 sa= sa->next;
1335                         }
1336                 }
1337         }
1338
1339         CTX_data_scene_set(C, scene);
1340         set_scene_bg(scene);
1341
1342         ED_update_for_newframe(C, 1);
1343
1344         /* complete redraw */
1345         WM_event_add_notifier(C, NC_WINDOW, NULL);
1346
1347 }
1348
1349 /* this function toggles: if area is full then the parent will be restored */
1350 void ed_screen_fullarea(bContext *C, ScrArea *sa)
1351 {
1352         bScreen *sc, *oldscreen;
1353
1354         if(sa==NULL) {
1355                 return;
1356         }
1357         else if(sa->full) {
1358                 short fulltype;
1359
1360                 sc= sa->full;           /* the old screen to restore */
1361                 oldscreen= CTX_wm_screen(C);    /* the one disappearing */
1362
1363                 fulltype = sc->full;
1364
1365                 /* refuse to go out of SCREENAUTOPLAY as long as G_FLAGS_AUTOPLAY
1366                    is set */
1367
1368                 if (fulltype != SCREENAUTOPLAY || (G.flags & G_FILE_AUTOPLAY) == 0) {
1369                         ScrArea *old;
1370
1371                         sc->full= 0;
1372
1373                         /* find old area */
1374                         for(old= sc->areabase.first; old; old= old->next)
1375                                 if(old->full) break;
1376                         if(old==NULL) {
1377                                 printf("something wrong in areafullscreen\n");
1378                                 return;
1379                         }
1380                             // old feature described below (ton)
1381                                 // in autoplay screens the headers are disabled by
1382                                 // default. So use the old headertype instead
1383
1384                         area_copy_data(old, sa, 1);     /*  1 = swap spacelist */
1385
1386                         old->full= NULL;
1387
1388                         /* animtimer back */
1389                         sc->animtimer= oldscreen->animtimer;
1390                         oldscreen->animtimer= NULL;
1391
1392                         ED_screen_set(C, sc);
1393
1394                         free_screen(oldscreen);
1395                         free_libblock(&CTX_data_main(C)->screen, oldscreen);
1396                 }
1397         }
1398         else {
1399                 ScrArea *newa;
1400
1401                 oldscreen= CTX_wm_screen(C);
1402
1403                 /* is there only 1 area? */
1404                 if(oldscreen->areabase.first==oldscreen->areabase.last) return;
1405
1406                 oldscreen->full = SCREENFULL;
1407
1408                 sc= ED_screen_add(CTX_wm_window(C), CTX_data_scene(C), "temp");
1409                 sc->full = SCREENFULL; // XXX
1410
1411                 /* timer */
1412                 sc->animtimer= oldscreen->animtimer;
1413                 oldscreen->animtimer= NULL;
1414
1415                 /* returns the top small area */
1416                 newa= area_split(CTX_wm_window(C), sc, (ScrArea *)sc->areabase.first, 'h', 0.99f);
1417                 ED_area_newspace(C, newa, SPACE_INFO);
1418
1419                 /* copy area */
1420                 newa= newa->prev;
1421                 area_copy_data(newa, sa, 1);    /* 1 = swap spacelist */
1422
1423                 sa->full= oldscreen;
1424                 newa->full= oldscreen;
1425                 newa->next->full= oldscreen; // XXX
1426
1427                 ED_screen_set(C, sc);
1428         }
1429
1430         /* XXX bad code: setscreen() ends with first area active. fullscreen render assumes this too */
1431         CTX_wm_area_set(C, sc->areabase.first);
1432
1433         /* XXX retopo_force_update(); */
1434
1435 }
1436
1437 int ED_screen_full_newspace(bContext *C, ScrArea *sa, int type)
1438 {
1439         if(sa==NULL)
1440                 return 0;
1441
1442         if(sa->full==0)
1443                 ed_screen_fullarea(C, sa);
1444
1445         /* CTX_wm_area(C) is new area */
1446         ED_area_newspace(C, CTX_wm_area(C), type);
1447
1448         return 1;
1449 }
1450
1451 void ED_screen_full_prevspace(bContext *C)
1452 {
1453         ScrArea *sa= CTX_wm_area(C);
1454
1455         ED_area_prevspace(C);
1456
1457         if(sa->full)
1458                 ed_screen_fullarea(C, sa);
1459 }
1460
1461 /* redraws: uses defines from stime->redraws
1462  * enable: 1 - forward on, -1 - backwards on, 0 - off
1463  */
1464 void ED_screen_animation_timer(bContext *C, int redraws, int enable)
1465 {
1466         bScreen *screen= CTX_wm_screen(C);
1467         wmWindow *win= CTX_wm_window(C);
1468         Scene *scene= CTX_data_scene(C);
1469
1470         if(screen->animtimer)
1471                 WM_event_remove_window_timer(win, screen->animtimer);
1472         screen->animtimer= NULL;
1473
1474         if(enable) {
1475                 struct ScreenAnimData *sad= MEM_mallocN(sizeof(ScreenAnimData), "ScreenAnimData");
1476
1477                 screen->animtimer= WM_event_add_window_timer(win, TIMER0, (1.0/FPS));
1478                 sad->ar= CTX_wm_region(C);
1479                 sad->redraws= redraws;
1480                 sad->reverse= (enable < 0);
1481                 screen->animtimer->customdata= sad;
1482
1483         }
1484         /* notifier catched by top header, for button */
1485         WM_event_add_notifier(C, NC_SCREEN|ND_ANIMPLAY, screen);
1486 }
1487
1488 unsigned int ED_screen_view3d_layers(bScreen *screen)
1489 {
1490         if(screen) {
1491                 unsigned int layer= screen->scene->lay; /* as minimum this */
1492                 ScrArea *sa;
1493
1494                 /* get all used view3d layers */
1495                 for(sa= screen->areabase.first; sa; sa= sa->next) {
1496                         if(sa->spacetype==SPACE_VIEW3D)
1497                                 layer |= ((View3D *)sa->spacedata.first)->lay;
1498                 }
1499                 return layer;
1500         }
1501         return 0;
1502 }
1503
1504
1505 /* results in fully updated anim system */
1506 /* in future sound should be on WM level, only 1 sound can play! */
1507 void ED_update_for_newframe(const bContext *C, int mute)
1508 {
1509         bScreen *screen= CTX_wm_screen(C);
1510         Scene *scene= screen->scene;
1511
1512         //extern void audiostream_scrub(unsigned int frame);    /* seqaudio.c */
1513
1514         /* this function applies the changes too */
1515         /* XXX future: do all windows */
1516         scene_update_for_newframe(scene, ED_screen_view3d_layers(screen)); /* BKE_scene.h */
1517
1518         //if ( (CFRA>1) && (!mute) && (scene->audio.flag & AUDIO_SCRUB))
1519         //      audiostream_scrub( CFRA );
1520
1521         /* 3d window, preview */
1522         //BIF_view3d_previewrender_signal(curarea, PR_DBASE|PR_DISPRECT);
1523
1524         /* all movie/sequence images */
1525         //BIF_image_update_frame();
1526
1527         /* composite */
1528         if(scene->use_nodes && scene->nodetree)
1529                 ntreeCompositTagAnimated(scene->nodetree);
1530
1531         /* update animated texture nodes */
1532         {
1533                 Tex *tex;
1534                 for(tex= CTX_data_main(C)->tex.first; tex; tex= tex->id.next)
1535                         if( tex->use_nodes && tex->nodetree ) {
1536                                 ntreeTexTagAnimated( tex->nodetree );
1537                         }
1538         }
1539 }
1540
1541