source/blender/editors/screen/area.c

   1 /*
   2  * $Id$
   3  *
   4  * ***** BEGIN GPL LICENSE BLOCK *****
   5  *
   6  * This program is free software; you can redistribute it and/or
   7  * modify it under the terms of the GNU General Public License
   8  * as published by the Free Software Foundation; either version 2
   9  * of the License, or (at your option) any later version.
  10  *
  11  * This program is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14  * GNU General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU General Public License
  17  * along with this program; if not, write to the Free Software Foundation,
  18  * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
  19  *
  20  * The Original Code is Copyright (C) 2008 Blender Foundation.
  21  * All rights reserved.
  22  *
  23  *
  24  * Contributor(s): Blender Foundation
  25  *
  26  * ***** END GPL LICENSE BLOCK *****
  27  */
  28
  29 /** \file blender/editors/screen/area.c
  30  *  \ingroup edscr
  31  */
  32
  33
  34 #include <string.h>
  35 #include <stdio.h>
  36
  37 #include "MEM_guardedalloc.h"
  38
  39 #include "DNA_userdef_types.h"
  40
  41 #include "BLI_blenlib.h"
  42 #include "BLI_math.h"
  43 #include "BLI_rand.h"
  44 #include "BLI_utildefines.h"
  45
  46 #include "BKE_context.h"
  47 #include "BKE_global.h"
  48 #include "BKE_screen.h"
  49
  50 #include "WM_api.h"
  51 #include "WM_types.h"
  52 #include "wm_subwindow.h"
  53
  54 #include "ED_screen.h"
  55 #include "ED_screen_types.h"
  56 #include "ED_space_api.h"
  57 #include "ED_types.h"
  58 #include "ED_fileselect.h"
  59
  60 #include "BIF_gl.h"
  61 #include "BIF_glutil.h"
  62 #include "BLF_api.h"
  63
  64 #include "UI_interface.h"
  65 #include "UI_resources.h"
  66 #include "UI_view2d.h"
  67
  68 #include "screen_intern.h"
  69
  70 /* general area and region code */
  71
  72 static void region_draw_emboss(ARegion *ar, rcti *scirct)
  73 {
  74         rcti rect;
  75
  76         /* translate scissor rect to region space */
  77         rect.xmin= scirct->xmin - ar->winrct.xmin;
  78         rect.ymin= scirct->ymin - ar->winrct.ymin;
  79         rect.xmax= scirct->xmax - ar->winrct.xmin;
  80         rect.ymax= scirct->ymax - ar->winrct.ymin;
  81
  82         /* set transp line */
  83         glEnable( GL_BLEND );
  84         glBlendFunc( GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA );
  85
  86         /* right  */
  87         glColor4ub(0,0,0, 50);
  88         sdrawline(rect.xmax, rect.ymin, rect.xmax, rect.ymax);
  89
  90         /* bottom  */
  91         glColor4ub(0,0,0, 80);
  92         sdrawline(rect.xmin, rect.ymin, rect.xmax, rect.ymin);
  93
  94         /* top  */
  95         glColor4ub(255,255,255, 60);
  96         sdrawline(rect.xmin, rect.ymax, rect.xmax, rect.ymax);
  97
  98         /* left  */
  99         glColor4ub(255,255,255, 50);
 100         sdrawline(rect.xmin, rect.ymin, rect.xmin, rect.ymax);
 101
 102         glDisable( GL_BLEND );
 103 }
 104
 105 void ED_region_pixelspace(ARegion *ar)
 106 {
 107         int width= ar->winrct.xmax-ar->winrct.xmin+1;
 108         int height= ar->winrct.ymax-ar->winrct.ymin+1;
 109
 110         wmOrtho2(-0.375f, (float)width-0.375f, -0.375f, (float)height-0.375f);
 111         glLoadIdentity();
 112 }
 113
 114 /* only exported for WM */
 115 void ED_region_do_listen(ARegion *ar, wmNotifier *note)
 116 {
 117         /* generic notes first */
 118         switch(note->category) {
 119                 case NC_WM:
 120                         if(note->data==ND_FILEREAD)
 121                                 ED_region_tag_redraw(ar);
 122                         break;
 123                 case NC_WINDOW:
 124                         ED_region_tag_redraw(ar);
 125                         break;
 126         }
 127
 128         if(ar->type && ar->type->listener)
 129                 ar->type->listener(ar, note);
 130 }
 131
 132 /* only exported for WM */
 133 void ED_area_do_listen(ScrArea *sa, wmNotifier *note)
 134 {
 135         /* no generic notes? */
 136         if(sa->type && sa->type->listener) {
 137                 sa->type->listener(sa, note);
 138         }
 139 }
 140
 141 /* only exported for WM */
 142 void ED_area_do_refresh(bContext *C, ScrArea *sa)
 143 {
 144         /* no generic notes? */
 145         if(sa->type && sa->type->refresh) {
 146                 sa->type->refresh(C, sa);
 147         }
 148         sa->do_refresh= 0;
 149 }
 150
 151 /* based on screen region draw tags, set draw tags in azones, and future region tabs etc */
 152 /* only exported for WM */
 153 void ED_area_overdraw_flush(ScrArea *sa, ARegion *ar)
 154 {
 155         AZone *az;
 156
 157         for(az= sa->actionzones.first; az; az= az->next) {
 158                 int xs, ys;
 159
 160                 xs= (az->x1+az->x2)/2;
 161                 ys= (az->y1+az->y2)/2;
 162
 163                 /* test if inside */
 164                 if(BLI_in_rcti(&ar->winrct, xs, ys)) {
 165                         az->do_draw= 1;
 166                 }
 167         }
 168 }
 169
 170 static void area_draw_azone(short x1, short y1, short x2, short y2)
 171 {
 172         int dx= floor(0.3f*(x2-x1));
 173         int dy= floor(0.3f*(y2-y1));
 174
 175         glColor4ub(255, 255, 255, 180);
 176         fdrawline(x1, y2, x2, y1);
 177         glColor4ub(255, 255, 255, 130);
 178         fdrawline(x1, y2-dy, x2-dx, y1);
 179         glColor4ub(255, 255, 255, 80);
 180         fdrawline(x1, y2-2*dy, x2-2*dx, y1);
 181
 182         glColor4ub(0, 0, 0, 210);
 183         fdrawline(x1, y2+1, x2+1, y1);
 184         glColor4ub(0, 0, 0, 180);
 185         fdrawline(x1, y2-dy+1, x2-dx+1, y1);
 186         glColor4ub(0, 0, 0, 150);
 187         fdrawline(x1, y2-2*dy+1, x2-2*dx+1, y1);
 188 }
 189
 190
 191 static void region_draw_azone(AZone *az)
 192 {
 193         GLUquadricObj *qobj = NULL;
 194         short midx = az->x1 + (az->x2 - az->x1)/2;
 195         short midy = az->y1 + (az->y2 - az->y1)/2;
 196
 197         if(az->ar==NULL) return;
 198
 199         /* only display action zone icons when the region is hidden */
 200         if (!(az->ar->flag & RGN_FLAG_HIDDEN)) return;
 201
 202         qobj = gluNewQuadric();
 203
 204         glPushMatrix();
 205         glTranslatef(midx, midy, 0.);
 206
 207         /* outlined circle */
 208         glEnable(GL_LINE_SMOOTH);
 209
 210         glColor4f(1.f, 1.f, 1.f, 0.8f);
 211
 212         gluQuadricDrawStyle(qobj, GLU_FILL);
 213         gluDisk( qobj, 0.0,  4.25f, 16, 1);
 214
 215         glColor4f(0.2f, 0.2f, 0.2f, 0.9f);
 216
 217         gluQuadricDrawStyle(qobj, GLU_SILHOUETTE);
 218         gluDisk( qobj, 0.0,  4.25f, 16, 1);
 219
 220         glDisable(GL_LINE_SMOOTH);
 221
 222         glPopMatrix();
 223         gluDeleteQuadric(qobj);
 224
 225         /* + */
 226         sdrawline(midx, midy-2, midx, midy+3);
 227         sdrawline(midx-2, midy, midx+3, midy);
 228 }
 229
 230
 231 /* only exported for WM */
 232 void ED_area_overdraw(bContext *C)
 233 {
 234         wmWindow *win= CTX_wm_window(C);
 235         bScreen *screen= CTX_wm_screen(C);
 236         ScrArea *sa;
 237
 238         /* Draw AZones, in screenspace */
 239         wmSubWindowSet(win, screen->mainwin);
 240
 241         glEnable( GL_BLEND );
 242         glBlendFunc( GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA );
 243
 244         for(sa= screen->areabase.first; sa; sa= sa->next) {
 245                 AZone *az;
 246                 for(az= sa->actionzones.first; az; az= az->next) {
 247                         if(az->do_draw) {
 248                                 if(az->type==AZONE_AREA) {
 249                                         area_draw_azone(az->x1, az->y1, az->x2, az->y2);
 250                                 } else if(az->type==AZONE_REGION) {
 251                                         region_draw_azone(az);
 252                                 }
 253
 254                                 az->do_draw= 0;
 255                         }
 256                 }
 257         }
 258         glDisable( GL_BLEND );
 259
 260 }
 261
 262 /* get scissor rect, checking overlapping regions */
 263 void region_scissor_winrct(ARegion *ar, rcti *winrct)
 264 {
 265         *winrct= ar->winrct;
 266
 267         if(ELEM(ar->alignment, RGN_OVERLAP_LEFT, RGN_OVERLAP_RIGHT))
 268                 return;
 269
 270         while(ar->prev) {
 271                 ar= ar->prev;
 272
 273                 if(BLI_isect_rcti(winrct, &ar->winrct, NULL)) {
 274                         if(ar->flag & RGN_FLAG_HIDDEN);
 275                         else if(ar->alignment & RGN_SPLIT_PREV);
 276                         else if(ar->alignment==RGN_OVERLAP_LEFT) {
 277                                 winrct->xmin= ar->winrct.xmax + 1;
 278                         }
 279                         else if(ar->alignment==RGN_OVERLAP_RIGHT) {
 280                                 winrct->xmax= ar->winrct.xmin - 1;
 281                         }
 282                         else break;
 283                 }
 284         }
 285 }
 286
 287 /* only exported for WM */
 288 /* makes region ready for drawing, sets pixelspace */
 289 void ED_region_set(const bContext *C, ARegion *ar)
 290 {
 291         wmWindow *win= CTX_wm_window(C);
 292         ScrArea *sa= CTX_wm_area(C);
 293         rcti winrct;
 294
 295         /* checks other overlapping regions */
 296         region_scissor_winrct(ar, &winrct);
 297
 298         ar->drawrct= winrct;
 299
 300         /* note; this sets state, so we can use wmOrtho and friends */
 301         wmSubWindowScissorSet(win, ar->swinid, &ar->drawrct);
 302
 303         UI_SetTheme(sa?sa->spacetype:0, ar->type?ar->type->regionid:0);
 304
 305         ED_region_pixelspace(ar);
 306 }
 307
 308
 309 /* only exported for WM */
 310 void ED_region_do_draw(bContext *C, ARegion *ar)
 311 {
 312         wmWindow *win= CTX_wm_window(C);
 313         ScrArea *sa= CTX_wm_area(C);
 314         ARegionType *at= ar->type;
 315         rcti winrct;
 316
 317         /* see BKE_spacedata_draw_locks() */
 318         if(at->do_lock)
 319                 return;
 320
 321         /* checks other overlapping regions */
 322         region_scissor_winrct(ar, &winrct);
 323
 324         /* if no partial draw rect set, full rect */
 325         if(ar->drawrct.xmin == ar->drawrct.xmax)
 326                 ar->drawrct= winrct;
 327         else {
 328                 /* extra clip for safety */
 329                 ar->drawrct.xmin= MAX2(winrct.xmin, ar->drawrct.xmin);
 330                 ar->drawrct.ymin= MAX2(winrct.ymin, ar->drawrct.ymin);
 331                 ar->drawrct.xmax= MIN2(winrct.xmax, ar->drawrct.xmax);
 332                 ar->drawrct.ymax= MIN2(winrct.ymax, ar->drawrct.ymax);
 333         }
 334
 335         /* note; this sets state, so we can use wmOrtho and friends */
 336         wmSubWindowScissorSet(win, ar->swinid, &ar->drawrct);
 337
 338         UI_SetTheme(sa?sa->spacetype:0, ar->type?ar->type->regionid:0);
 339
 340         /* optional header info instead? */
 341         if(ar->headerstr) {
 342                 UI_ThemeClearColor(TH_HEADER);
 343                 glClear(GL_COLOR_BUFFER_BIT);
 344
 345                 UI_ThemeColor(TH_TEXT);
 346                 BLF_draw_default(20, 8, 0.0f, ar->headerstr, 65535); /* XXX, use real length */
 347         }
 348         else if(at->draw) {
 349                 at->draw(C, ar);
 350         }
 351
 352         ED_region_draw_cb_draw(C, ar, REGION_DRAW_POST_PIXEL);
 353
 354         uiFreeInactiveBlocks(C, &ar->uiblocks);
 355
 356         if(sa)
 357                 region_draw_emboss(ar, &winrct);
 358
 359         /* XXX test: add convention to end regions always in pixel space, for drawing of borders/gestures etc */
 360         ED_region_pixelspace(ar);
 361
 362         ar->do_draw= 0;
 363         memset(&ar->drawrct, 0, sizeof(ar->drawrct));
 364 }
 365
 366 /* **********************************
 367    maybe silly, but let's try for now
 368    to keep these tags protected
 369    ********************************** */
 370
 371 void ED_region_tag_redraw(ARegion *ar)
 372 {
 373         if(ar) {
 374                 /* zero region means full region redraw */
 375                 ar->do_draw= RGN_DRAW;
 376                 memset(&ar->drawrct, 0, sizeof(ar->drawrct));
 377         }
 378 }
 379
 380 void ED_region_tag_redraw_overlay(ARegion *ar)
 381 {
 382         if(ar)
 383                 ar->do_draw_overlay= RGN_DRAW;
 384 }
 385
 386 void ED_region_tag_redraw_partial(ARegion *ar, rcti *rct)
 387 {
 388         if(ar) {
 389                 if(!ar->do_draw) {
 390                         /* no redraw set yet, set partial region */
 391                         ar->do_draw= RGN_DRAW_PARTIAL;
 392                         ar->drawrct= *rct;
 393                 }
 394                 else if(ar->drawrct.xmin != ar->drawrct.xmax) {
 395                         /* partial redraw already set, expand region */
 396                         ar->drawrct.xmin= MIN2(ar->drawrct.xmin, rct->xmin);
 397                         ar->drawrct.ymin= MIN2(ar->drawrct.ymin, rct->ymin);
 398                         ar->drawrct.xmax= MAX2(ar->drawrct.xmax, rct->xmax);
 399                         ar->drawrct.ymax= MAX2(ar->drawrct.ymax, rct->ymax);
 400                 }
 401         }
 402 }
 403
 404 void ED_area_tag_redraw(ScrArea *sa)
 405 {
 406         ARegion *ar;
 407
 408         if(sa)
 409                 for(ar= sa->regionbase.first; ar; ar= ar->next)
 410                         ED_region_tag_redraw(ar);
 411 }
 412
 413 void ED_area_tag_redraw_regiontype(ScrArea *sa, int regiontype)
 414 {
 415         ARegion *ar;
 416
 417         if(sa) {
 418                 for(ar= sa->regionbase.first; ar; ar= ar->next) {
 419                         if(ar->regiontype == regiontype) {
 420                                 ED_region_tag_redraw(ar);
 421                         }
 422                 }
 423         }
 424 }
 425
 426 void ED_area_tag_refresh(ScrArea *sa)
 427 {
 428         if(sa)
 429                 sa->do_refresh= 1;
 430 }
 431
 432 /* *************************************************************** */
 433
 434 /* use NULL to disable it */
 435 void ED_area_headerprint(ScrArea *sa, const char *str)
 436 {
 437         ARegion *ar;
 438
 439         /* happens when running transform operators in backround mode */
 440         if(sa == NULL)
 441                 return;
 442
 443         for(ar= sa->regionbase.first; ar; ar= ar->next) {
 444                 if(ar->regiontype==RGN_TYPE_HEADER) {
 445                         if(str) {
 446                                 if(ar->headerstr==NULL)
 447                                         ar->headerstr= MEM_mallocN(256, "headerprint");
 448                                 BLI_strncpy(ar->headerstr, str, 256);
 449                         }
 450                         else if(ar->headerstr) {
 451                                 MEM_freeN(ar->headerstr);
 452                                 ar->headerstr= NULL;
 453                         }
 454                         ED_region_tag_redraw(ar);
 455                 }
 456         }
 457 }
 458
 459 /* ************************************************************ */
 460
 461
 462 static void area_azone_initialize(ScrArea *sa)
 463 {
 464         AZone *az;
 465
 466         /* reinitalize entirely, regions add azones too */
 467         BLI_freelistN(&sa->actionzones);
 468
 469         /* set area action zones */
 470         az= (AZone *)MEM_callocN(sizeof(AZone), "actionzone");
 471         BLI_addtail(&(sa->actionzones), az);
 472         az->type= AZONE_AREA;
 473         az->x1= sa->totrct.xmin;
 474         az->y1= sa->totrct.ymin;
 475         az->x2= sa->totrct.xmin + AZONESPOT;
 476         az->y2= sa->totrct.ymin + AZONESPOT;
 477         BLI_init_rcti(&az->rect, az->x1, az->x2, az->y1, az->y2);
 478
 479         az= (AZone *)MEM_callocN(sizeof(AZone), "actionzone");
 480         BLI_addtail(&(sa->actionzones), az);
 481         az->type= AZONE_AREA;
 482         az->x1= sa->totrct.xmax+1;
 483         az->y1= sa->totrct.ymax+1;
 484         az->x2= sa->totrct.xmax-AZONESPOT;
 485         az->y2= sa->totrct.ymax-AZONESPOT;
 486         BLI_init_rcti(&az->rect, az->x1, az->x2, az->y1, az->y2);
 487 }
 488
 489 #define AZONEPAD_EDGE   4
 490 #define AZONEPAD_ICON   9
 491 static void region_azone_edge(AZone *az, ARegion *ar)
 492 {
 493         switch(az->edge) {
 494                 case AE_TOP_TO_BOTTOMRIGHT:
 495                         az->x1= ar->winrct.xmin;
 496                         az->y1= ar->winrct.ymax - AZONEPAD_EDGE;
 497                         az->x2= ar->winrct.xmax;
 498                         az->y2= ar->winrct.ymax;
 499                         break;
 500                 case AE_BOTTOM_TO_TOPLEFT:
 501                         az->x1= ar->winrct.xmin;
 502                         az->y1= ar->winrct.ymin + AZONEPAD_EDGE;
 503                         az->x2= ar->winrct.xmax;
 504                         az->y2= ar->winrct.ymin;
 505                         break;
 506                 case AE_LEFT_TO_TOPRIGHT:
 507                         az->x1= ar->winrct.xmin;
 508                         az->y1= ar->winrct.ymin;
 509                         az->x2= ar->winrct.xmin + AZONEPAD_EDGE;
 510                         az->y2= ar->winrct.ymax;
 511                         break;
 512                 case AE_RIGHT_TO_TOPLEFT:
 513                         az->x1= ar->winrct.xmax;
 514                         az->y1= ar->winrct.ymin;
 515                         az->x2= ar->winrct.xmax - AZONEPAD_EDGE;
 516                         az->y2= ar->winrct.ymax;
 517                         break;
 518         }
 519
 520         BLI_init_rcti(&az->rect, az->x1, az->x2, az->y1, az->y2);
 521 }
 522
 523 static void region_azone_icon(ScrArea *sa, AZone *az, ARegion *ar)
 524 {
 525         AZone *azt;
 526         int tot=0;
 527
 528         /* count how many actionzones with along same edge are available.
 529            This allows for adding more action zones in the future without
 530            having to worry about correct offset */
 531         for(azt= sa->actionzones.first; azt; azt= azt->next) {
 532                 if(azt->edge == az->edge) tot++;
 533         }
 534
 535         switch(az->edge) {
 536                 case AE_TOP_TO_BOTTOMRIGHT:
 537                         az->x1= ar->winrct.xmax - tot*2*AZONEPAD_ICON;
 538                         az->y1= ar->winrct.ymax + AZONEPAD_ICON;
 539                         az->x2= ar->winrct.xmax - tot*AZONEPAD_ICON;
 540                         az->y2= ar->winrct.ymax + 2*AZONEPAD_ICON;
 541                         break;
 542                 case AE_BOTTOM_TO_TOPLEFT:
 543                         az->x1= ar->winrct.xmin + AZONEPAD_ICON;
 544                         az->y1= ar->winrct.ymin - 2*AZONEPAD_ICON;
 545                         az->x2= ar->winrct.xmin + 2*AZONEPAD_ICON;
 546                         az->y2= ar->winrct.ymin - AZONEPAD_ICON;
 547                         break;
 548                 case AE_LEFT_TO_TOPRIGHT:
 549                         az->x1= ar->winrct.xmin - 2*AZONEPAD_ICON;
 550                         az->y1= ar->winrct.ymax - tot*2*AZONEPAD_ICON;
 551                         az->x2= ar->winrct.xmin - AZONEPAD_ICON;
 552                         az->y2= ar->winrct.ymax - tot*AZONEPAD_ICON;
 553                         break;
 554                 case AE_RIGHT_TO_TOPLEFT:
 555                         az->x1= ar->winrct.xmax + AZONEPAD_ICON;
 556                         az->y1= ar->winrct.ymax - tot*2*AZONEPAD_ICON;
 557                         az->x2= ar->winrct.xmax + 2*AZONEPAD_ICON;
 558                         az->y2= ar->winrct.ymax - tot*AZONEPAD_ICON;
 559                         break;
 560         }
 561
 562         BLI_init_rcti(&az->rect, az->x1, az->x2, az->y1, az->y2);
 563
 564         /* if more azones on 1 spot, set offset */
 565         for(azt= sa->actionzones.first; azt; azt= azt->next) {
 566                 if(az!=azt) {
 567                         if( ABS(az->x1-azt->x1) < 2 && ABS(az->y1-azt->y1) < 2) {
 568                                 if(az->edge==AE_TOP_TO_BOTTOMRIGHT || az->edge==AE_BOTTOM_TO_TOPLEFT) {
 569                                         az->x1+= AZONESPOT;
 570                                         az->x2+= AZONESPOT;
 571                                 }
 572                                 else{
 573                                         az->y1-= AZONESPOT;
 574                                         az->y2-= AZONESPOT;
 575                                 }
 576                                 BLI_init_rcti(&az->rect, az->x1, az->x2, az->y1, az->y2);
 577                         }
 578                 }
 579         }
 580 }
 581
 582 static void region_azone_initialize(ScrArea *sa, ARegion *ar, AZEdge edge)
 583 {
 584         AZone *az;
 585
 586         az= (AZone *)MEM_callocN(sizeof(AZone), "actionzone");
 587         BLI_addtail(&(sa->actionzones), az);
 588         az->type= AZONE_REGION;
 589         az->ar= ar;
 590         az->edge= edge;
 591
 592         if (ar->flag & RGN_FLAG_HIDDEN) {
 593                 region_azone_icon(sa, az, ar);
 594         } else {
 595                 region_azone_edge(az, ar);
 596         }
 597
 598 }
 599
 600
 601 /* *************************************************************** */
 602
 603 static void region_azone_add(ScrArea *sa, ARegion *ar, int alignment)
 604 {
 605          /* edge code (t b l r) is along which area edge azone will be drawn */
 606
 607         if(alignment==RGN_ALIGN_TOP)
 608                 region_azone_initialize(sa, ar, AE_BOTTOM_TO_TOPLEFT);
 609         else if(alignment==RGN_ALIGN_BOTTOM)
 610                 region_azone_initialize(sa, ar, AE_TOP_TO_BOTTOMRIGHT);
 611         else if(ELEM(alignment, RGN_ALIGN_RIGHT, RGN_OVERLAP_RIGHT))
 612                 region_azone_initialize(sa, ar, AE_LEFT_TO_TOPRIGHT);
 613         else if(ELEM(alignment, RGN_ALIGN_LEFT, RGN_OVERLAP_LEFT))
 614                 region_azone_initialize(sa, ar, AE_RIGHT_TO_TOPLEFT);
 615 }
 616
 617 /* dir is direction to check, not the splitting edge direction! */
 618 static int rct_fits(rcti *rect, char dir, int size)
 619 {
 620         if(dir=='h') {
 621                 return rect->xmax-rect->xmin - size;
 622         }
 623         else { // 'v'
 624                 return rect->ymax-rect->ymin - size;
 625         }
 626 }
 627
 628 static void region_rect_recursive(ScrArea *sa, ARegion *ar, rcti *remainder, int quad)
 629 {
 630         rcti *remainder_prev= remainder;
 631         int prefsizex, prefsizey;
 632         int alignment;
 633
 634         if(ar==NULL)
 635                 return;
 636
 637         /* no returns in function, winrct gets set in the end again */
 638         BLI_init_rcti(&ar->winrct, 0, 0, 0, 0);
 639
 640         /* for test; allow split of previously defined region */
 641         if(ar->alignment & RGN_SPLIT_PREV)
 642                 if(ar->prev)
 643                         remainder= &ar->prev->winrct;
 644
 645         alignment = ar->alignment & ~RGN_SPLIT_PREV;
 646
 647         /* clear state flags first */
 648         ar->flag &= ~RGN_FLAG_TOO_SMALL;
 649         /* user errors */
 650         if(ar->next==NULL && alignment!=RGN_ALIGN_QSPLIT)
 651                 alignment= RGN_ALIGN_NONE;
 652
 653         prefsizex= ar->sizex?ar->sizex:ar->type->prefsizex;
 654         prefsizey= ar->sizey?ar->sizey:ar->type->prefsizey;
 655
 656         /* hidden is user flag */
 657         if(ar->flag & RGN_FLAG_HIDDEN);
 658         /* XXX floating area region, not handled yet here */
 659         else if(alignment == RGN_ALIGN_FLOAT);
 660         /* remainder is too small for any usage */
 661         else if( rct_fits(remainder, 'v', 1)<0 || rct_fits(remainder, 'h', 1) < 0 ) {
 662                 ar->flag |= RGN_FLAG_TOO_SMALL;
 663         }
 664         else if(alignment==RGN_ALIGN_NONE) {
 665                 /* typically last region */
 666                 ar->winrct= *remainder;
 667                 BLI_init_rcti(remainder, 0, 0, 0, 0);
 668         }
 669         else if(alignment==RGN_ALIGN_TOP || alignment==RGN_ALIGN_BOTTOM) {
 670
 671                 if( rct_fits(remainder, 'v', prefsizey) < 0 ) {
 672                         ar->flag |= RGN_FLAG_TOO_SMALL;
 673                 }
 674                 else {
 675                         int fac= rct_fits(remainder, 'v', prefsizey);
 676
 677                         if(fac < 0 )
 678                                 prefsizey += fac;
 679
 680                         ar->winrct= *remainder;
 681
 682                         if(alignment==RGN_ALIGN_TOP) {
 683                                 ar->winrct.ymin= ar->winrct.ymax - prefsizey + 1;
 684                                 remainder->ymax= ar->winrct.ymin - 1;
 685                         }
 686                         else {
 687                                 ar->winrct.ymax= ar->winrct.ymin + prefsizey - 1;
 688                                 remainder->ymin= ar->winrct.ymax + 1;
 689                         }
 690                 }
 691         }
 692         else if( ELEM4(alignment, RGN_ALIGN_LEFT, RGN_ALIGN_RIGHT, RGN_OVERLAP_LEFT, RGN_OVERLAP_RIGHT)) {
 693
 694                 if( rct_fits(remainder, 'h', prefsizex) < 0 ) {
 695                         ar->flag |= RGN_FLAG_TOO_SMALL;
 696                 }
 697                 else {
 698                         int fac= rct_fits(remainder, 'h', prefsizex);
 699
 700                         if(fac < 0 )
 701                                 prefsizex += fac;
 702
 703                         ar->winrct= *remainder;
 704
 705                         if(ELEM(alignment, RGN_ALIGN_RIGHT, RGN_OVERLAP_RIGHT)) {
 706                                 ar->winrct.xmin= ar->winrct.xmax - prefsizex + 1;
 707                                 if(alignment==RGN_ALIGN_RIGHT)
 708                                         remainder->xmax= ar->winrct.xmin - 1;
 709                         }
 710                         else {
 711                                 ar->winrct.xmax= ar->winrct.xmin + prefsizex - 1;
 712                                 if(alignment==RGN_ALIGN_LEFT)
 713                                         remainder->xmin= ar->winrct.xmax + 1;
 714                         }
 715                 }
 716         }
 717         else if(alignment==RGN_ALIGN_VSPLIT || alignment==RGN_ALIGN_HSPLIT) {
 718                 /* percentage subdiv*/
 719                 ar->winrct= *remainder;
 720
 721                 if(alignment==RGN_ALIGN_HSPLIT) {
 722                         if( rct_fits(remainder, 'h', prefsizex) > 4) {
 723                                 ar->winrct.xmax= (remainder->xmin+remainder->xmax)/2;
 724                                 remainder->xmin= ar->winrct.xmax+1;
 725                         }
 726                         else {
 727                                 BLI_init_rcti(remainder, 0, 0, 0, 0);
 728                         }
 729                 }
 730                 else {
 731                         if( rct_fits(remainder, 'v', prefsizey) > 4) {
 732                                 ar->winrct.ymax= (remainder->ymin+remainder->ymax)/2;
 733                                 remainder->ymin= ar->winrct.ymax+1;
 734                         }
 735                         else {
 736                                 BLI_init_rcti(remainder, 0, 0, 0, 0);
 737                         }
 738                 }
 739         }
 740         else if(alignment==RGN_ALIGN_QSPLIT) {
 741                 ar->winrct= *remainder;
 742
 743                 /* test if there's still 4 regions left */
 744                 if(quad==0) {
 745                         ARegion *artest= ar->next;
 746                         int count= 1;
 747
 748                         while(artest) {
 749                                 artest->alignment= RGN_ALIGN_QSPLIT;
 750                                 artest= artest->next;
 751                                 count++;
 752                         }
 753
 754                         if(count!=4) {
 755                                 /* let's stop adding regions */
 756                                 BLI_init_rcti(remainder, 0, 0, 0, 0);
 757                                 if (G.f & G_DEBUG)
 758                                         printf("region quadsplit failed\n");
 759                         }
 760                         else quad= 1;
 761                 }
 762                 if(quad) {
 763                         if(quad==1) { /* left bottom */
 764                                 ar->winrct.xmax = (remainder->xmin + remainder->xmax)/2;
 765                                 ar->winrct.ymax = (remainder->ymin + remainder->ymax)/2;
 766                         }
 767                         else if(quad==2) { /* left top */
 768                                 ar->winrct.xmax = (remainder->xmin + remainder->xmax)/2;
 769                                 ar->winrct.ymin = 1 + (remainder->ymin + remainder->ymax)/2;
 770                         }
 771                         else if(quad==3) { /* right bottom */
 772                                 ar->winrct.xmin = 1 + (remainder->xmin + remainder->xmax)/2;
 773                                 ar->winrct.ymax = (remainder->ymin + remainder->ymax)/2;
 774                         }
 775                         else {  /* right top */
 776                                 ar->winrct.xmin = 1 + (remainder->xmin + remainder->xmax)/2;
 777                                 ar->winrct.ymin = 1 + (remainder->ymin + remainder->ymax)/2;
 778                                 BLI_init_rcti(remainder, 0, 0, 0, 0);
 779                         }
 780
 781                         quad++;
 782                 }
 783         }
 784
 785         /* for speedup */
 786         ar->winx= ar->winrct.xmax - ar->winrct.xmin + 1;
 787         ar->winy= ar->winrct.ymax - ar->winrct.ymin + 1;
 788
 789         /* restore test exception */
 790         if(ar->alignment & RGN_SPLIT_PREV) {
 791                 if(ar->prev) {
 792                         remainder= remainder_prev;
 793                         ar->prev->winx= ar->prev->winrct.xmax - ar->prev->winrct.xmin + 1;
 794                         ar->prev->winy= ar->prev->winrct.ymax - ar->prev->winrct.ymin + 1;
 795                 }
 796         }
 797
 798         /* set winrect for azones */
 799         if(ar->flag & (RGN_FLAG_HIDDEN|RGN_FLAG_TOO_SMALL)) {
 800                 ar->winrct= *remainder;
 801
 802                 if(alignment==RGN_ALIGN_TOP)
 803                         ar->winrct.ymin= ar->winrct.ymax;
 804                 else if(alignment==RGN_ALIGN_BOTTOM)
 805                         ar->winrct.ymax= ar->winrct.ymin;
 806                 else if(ELEM(alignment, RGN_ALIGN_RIGHT, RGN_OVERLAP_RIGHT))
 807                         ar->winrct.xmin= ar->winrct.xmax;
 808                 else if(ELEM(alignment, RGN_ALIGN_LEFT, RGN_OVERLAP_LEFT))
 809                         ar->winrct.xmax= ar->winrct.xmin;
 810                 else /* prevent winrct to be valid */
 811                         ar->winrct.xmax= ar->winrct.xmin;
 812         }
 813         /* in end, add azones, where appropriate */
 814         region_azone_add(sa, ar, alignment);
 815
 816
 817         region_rect_recursive(sa, ar->next, remainder, quad);
 818 }
 819
 820 static void area_calc_totrct(ScrArea *sa, int sizex, int sizey)
 821 {
 822         short rt= CLAMPIS(G.rt, 0, 16);
 823
 824         if(sa->v1->vec.x>0) sa->totrct.xmin= sa->v1->vec.x+1+rt;
 825         else sa->totrct.xmin= sa->v1->vec.x;
 826         if(sa->v4->vec.x<sizex-1) sa->totrct.xmax= sa->v4->vec.x-1-rt;
 827         else sa->totrct.xmax= sa->v4->vec.x;
 828
 829         if(sa->v1->vec.y>0) sa->totrct.ymin= sa->v1->vec.y+1+rt;
 830         else sa->totrct.ymin= sa->v1->vec.y;
 831         if(sa->v2->vec.y<sizey-1) sa->totrct.ymax= sa->v2->vec.y-1-rt;
 832         else sa->totrct.ymax= sa->v2->vec.y;
 833
 834         /* for speedup */
 835         sa->winx= sa->totrct.xmax-sa->totrct.xmin+1;
 836         sa->winy= sa->totrct.ymax-sa->totrct.ymin+1;
 837 }
 838
 839
 840 /* used for area initialize below */
 841 static void region_subwindow(wmWindow *win, ARegion *ar)
 842 {
 843         if(ar->flag & (RGN_FLAG_HIDDEN|RGN_FLAG_TOO_SMALL)) {
 844                 if(ar->swinid)
 845                         wm_subwindow_close(win, ar->swinid);
 846                 ar->swinid= 0;
 847         }
 848         else if(ar->swinid==0)
 849                 ar->swinid= wm_subwindow_open(win, &ar->winrct);
 850         else
 851                 wm_subwindow_position(win, ar->swinid, &ar->winrct);
 852 }
 853
 854 static void ed_default_handlers(wmWindowManager *wm, ScrArea *sa, ListBase *handlers, int flag)
 855 {
 856         /* note, add-handler checks if it already exists */
 857
 858         // XXX it would be good to have boundbox checks for some of these...
 859         if(flag & ED_KEYMAP_UI) {
 860                 /* user interface widgets */
 861                 UI_add_region_handlers(handlers);
 862         }
 863         if(flag & ED_KEYMAP_VIEW2D) {
 864                 /* 2d-viewport handling+manipulation */
 865                 wmKeyMap *keymap= WM_keymap_find(wm->defaultconf, "View2D", 0, 0);
 866                 WM_event_add_keymap_handler(handlers, keymap);
 867         }
 868         if(flag & ED_KEYMAP_MARKERS) {
 869                 /* time-markers */
 870                 wmKeyMap *keymap= WM_keymap_find(wm->defaultconf, "Markers", 0, 0);
 871
 872                 /* time space only has this keymap, the others get a boundbox restricted map */
 873                 if(sa->spacetype!=SPACE_TIME) {
 874                         ARegion *ar;
 875                         static rcti rect= {0, 10000, 0, 30};    /* same local check for all areas */
 876
 877                         for(ar= sa->regionbase.first; ar; ar= ar->next)
 878                                 if(ar->regiontype == RGN_TYPE_WINDOW)
 879                                         break;
 880                         if(ar)
 881                                 WM_event_add_keymap_handler_bb(handlers, keymap, &rect, &ar->winrct);
 882                 }
 883                 else
 884                         WM_event_add_keymap_handler(handlers, keymap);
 885         }
 886         if(flag & ED_KEYMAP_ANIMATION) {
 887                 /* frame changing and timeline operators (for time spaces) */
 888                 wmKeyMap *keymap= WM_keymap_find(wm->defaultconf, "Animation", 0, 0);
 889                 WM_event_add_keymap_handler(handlers, keymap);
 890         }
 891         if(flag & ED_KEYMAP_FRAMES) {
 892                 /* frame changing/jumping (for all spaces) */
 893                 wmKeyMap *keymap= WM_keymap_find(wm->defaultconf, "Frames", 0, 0);
 894                 WM_event_add_keymap_handler(handlers, keymap);
 895         }
 896         if(flag & ED_KEYMAP_GPENCIL) {
 897                 /* grease pencil */
 898                 wmKeyMap *keymap= WM_keymap_find(wm->defaultconf, "Grease Pencil", 0, 0);
 899                 WM_event_add_keymap_handler(handlers, keymap);
 900         }
 901         if(flag & ED_KEYMAP_HEADER) {
 902                 /* standard keymap for headers regions */
 903                 wmKeyMap *keymap= WM_keymap_find(wm->defaultconf, "Header", 0, 0);
 904                 WM_event_add_keymap_handler(handlers, keymap);
 905         }
 906 }
 907
 908
 909 /* called in screen_refresh, or screens_init, also area size changes */
 910 void ED_area_initialize(wmWindowManager *wm, wmWindow *win, ScrArea *sa)
 911 {
 912         ARegion *ar;
 913         rcti rect;
 914
 915         /* set typedefinitions */
 916         sa->type= BKE_spacetype_from_id(sa->spacetype);
 917
 918         if(sa->type==NULL) {
 919                 sa->butspacetype= sa->spacetype= SPACE_VIEW3D;
 920                 sa->type= BKE_spacetype_from_id(sa->spacetype);
 921         }
 922
 923         for(ar= sa->regionbase.first; ar; ar= ar->next)
 924                 ar->type= BKE_regiontype_from_id(sa->type, ar->regiontype);
 925
 926         /* area sizes */
 927         area_calc_totrct(sa, win->sizex, win->sizey);
 928
 929         /* clear all azones, add the area triange widgets */
 930         area_azone_initialize(sa);
 931
 932         /* region rect sizes */
 933         rect= sa->totrct;
 934         region_rect_recursive(sa, sa->regionbase.first, &rect, 0);
 935
 936         /* default area handlers */
 937         ed_default_handlers(wm, sa, &sa->handlers, sa->type->keymapflag);
 938         /* checks spacedata, adds own handlers */
 939         if(sa->type->init)
 940                 sa->type->init(wm, sa);
 941
 942         /* region windows, default and own handlers */
 943         for(ar= sa->regionbase.first; ar; ar= ar->next) {
 944                 region_subwindow(win, ar);
 945
 946                 if(ar->swinid) {
 947                         /* default region handlers */
 948                         ed_default_handlers(wm, sa, &ar->handlers, ar->type->keymapflag);
 949                         /* own handlers */
 950                         if(ar->type->init)
 951                                 ar->type->init(wm, ar);
 952                 }
 953                 else {
 954                         /* prevent uiblocks to run */
 955                         uiFreeBlocks(NULL, &ar->uiblocks);
 956                 }
 957
 958         }
 959 }
 960
 961 /* externally called for floating regions like menus */
 962 void ED_region_init(bContext *C, ARegion *ar)
 963 {
 964 //      ARegionType *at= ar->type;
 965
 966         /* refresh can be called before window opened */
 967         region_subwindow(CTX_wm_window(C), ar);
 968
 969         ar->winx= ar->winrct.xmax - ar->winrct.xmin + 1;
 970         ar->winy= ar->winrct.ymax - ar->winrct.ymin + 1;
 971
 972         /* UI convention */
 973         wmOrtho2(-0.01f, ar->winx-0.01f, -0.01f, ar->winy-0.01f);
 974         glLoadIdentity();
 975 }
 976
 977 void ED_region_toggle_hidden(bContext *C, ARegion *ar)
 978 {
 979         ScrArea *sa= CTX_wm_area(C);
 980
 981         ar->flag ^= RGN_FLAG_HIDDEN;
 982
 983         if(ar->flag & RGN_FLAG_HIDDEN)
 984                 WM_event_remove_handlers(C, &ar->handlers);
 985
 986         ED_area_initialize(CTX_wm_manager(C), CTX_wm_window(C), sa);
 987         ED_area_tag_redraw(sa);
 988 }
 989
 990 /* sa2 to sa1, we swap spaces for fullscreen to keep all allocated data */
 991 /* area vertices were set */
 992 void area_copy_data(ScrArea *sa1, ScrArea *sa2, int swap_space)
 993 {
 994         SpaceType *st;
 995         ARegion *ar;
 996         int spacetype= sa1->spacetype;
 997
 998         sa1->headertype= sa2->headertype;
 999         sa1->spacetype= sa2->spacetype;
1000         sa1->butspacetype= sa2->butspacetype;
1001
1002         if(swap_space == 1) {
1003                 SWAP(ListBase, sa1->spacedata, sa2->spacedata);
1004                 /* exception: ensure preview is reset */
1005 //              if(sa1->spacetype==SPACE_VIEW3D)
1006 // XXX                  BIF_view3d_previewrender_free(sa1->spacedata.first);
1007         }
1008         else if (swap_space == 2) {
1009                 BKE_spacedata_copylist(&sa1->spacedata, &sa2->spacedata);
1010         }
1011         else {
1012                 BKE_spacedata_freelist(&sa1->spacedata);
1013                 BKE_spacedata_copylist(&sa1->spacedata, &sa2->spacedata);
1014         }
1015
1016         /* Note; SPACE_EMPTY is possible on new screens */
1017
1018         /* regions */
1019         if(swap_space == 1) {
1020                 SWAP(ListBase, sa1->regionbase, sa2->regionbase);
1021         }
1022         else {
1023                 if(swap_space<2) {
1024                         st= BKE_spacetype_from_id(spacetype);
1025                         for(ar= sa1->regionbase.first; ar; ar= ar->next)
1026                                 BKE_area_region_free(st, ar);
1027                         BLI_freelistN(&sa1->regionbase);
1028                 }
1029
1030                 st= BKE_spacetype_from_id(sa2->spacetype);
1031                 for(ar= sa2->regionbase.first; ar; ar= ar->next) {
1032                         ARegion *newar= BKE_area_region_copy(st, ar);
1033                         BLI_addtail(&sa1->regionbase, newar);
1034                 }
1035         }
1036 }
1037
1038 /* *********** Space switching code *********** */
1039
1040 void ED_area_swapspace(bContext *C, ScrArea *sa1, ScrArea *sa2)
1041 {
1042         ScrArea *tmp= MEM_callocN(sizeof(ScrArea), "addscrarea");
1043
1044         ED_area_exit(C, sa1);
1045         ED_area_exit(C, sa2);
1046
1047         area_copy_data(tmp, sa1, 2);
1048         area_copy_data(sa1, sa2, 0);
1049         area_copy_data(sa2, tmp, 0);
1050         ED_area_initialize(CTX_wm_manager(C), CTX_wm_window(C), sa1);
1051         ED_area_initialize(CTX_wm_manager(C), CTX_wm_window(C), sa2);
1052
1053         BKE_screen_area_free(tmp);
1054         MEM_freeN(tmp);
1055
1056         /* tell WM to refresh, cursor types etc */
1057         WM_event_add_mousemove(C);
1058
1059         ED_area_tag_redraw(sa1);
1060         ED_area_tag_refresh(sa1);
1061         ED_area_tag_redraw(sa2);
1062         ED_area_tag_refresh(sa2);
1063 }
1064
1065 void ED_area_newspace(bContext *C, ScrArea *sa, int type)
1066 {
1067         if(sa->spacetype != type) {
1068                 SpaceType *st;
1069                 SpaceLink *slold;
1070                 SpaceLink *sl;
1071
1072                 ED_area_exit(C, sa);
1073
1074                 st= BKE_spacetype_from_id(type);
1075                 slold= sa->spacedata.first;
1076
1077                 sa->spacetype= type;
1078                 sa->butspacetype= type;
1079                 sa->type= st;
1080
1081                 /* check previously stored space */
1082                 for (sl= sa->spacedata.first; sl; sl= sl->next)
1083                         if(sl->spacetype==type)
1084                                 break;
1085
1086                 /* old spacedata... happened during work on 2.50, remove */
1087                 if(sl && sl->regionbase.first==NULL) {
1088                         st->free(sl);
1089                         BLI_freelinkN(&sa->spacedata, sl);
1090                         if(slold == sl) {
1091                                 slold= NULL;
1092                         }
1093                         sl= NULL;
1094                 }
1095
1096                 if (sl) {
1097
1098                         /* swap regions */
1099                         slold->regionbase= sa->regionbase;
1100                         sa->regionbase= sl->regionbase;
1101                         sl->regionbase.first= sl->regionbase.last= NULL;
1102
1103                         /* put in front of list */
1104                         BLI_remlink(&sa->spacedata, sl);
1105                         BLI_addhead(&sa->spacedata, sl);
1106                 }
1107                 else {
1108                         /* new space */
1109                         if(st) {
1110                                 sl= st->new(C);
1111                                 BLI_addhead(&sa->spacedata, sl);
1112
1113                                 /* swap regions */
1114                                 if(slold)
1115                                         slold->regionbase= sa->regionbase;
1116                                 sa->regionbase= sl->regionbase;
1117                                 sl->regionbase.first= sl->regionbase.last= NULL;
1118                         }
1119                 }
1120
1121                 ED_area_initialize(CTX_wm_manager(C), CTX_wm_window(C), sa);
1122
1123                 /* tell WM to refresh, cursor types etc */
1124                 WM_event_add_mousemove(C);
1125
1126                 /*send space change notifyer*/
1127                 WM_event_add_notifier(C, NC_SPACE|ND_SPACE_CHANGED, sa);
1128
1129                 ED_area_tag_refresh(sa);
1130         }
1131
1132         /* also redraw when re-used */
1133         ED_area_tag_redraw(sa);
1134 }
1135
1136 void ED_area_prevspace(bContext *C, ScrArea *sa)
1137 {
1138         SpaceLink *sl = (sa) ? sa->spacedata.first : CTX_wm_space_data(C);
1139
1140         if(sl->next) {
1141                 /* workaround for case of double prevspace, render window
1142                    with a file browser on top of it */
1143                 if(sl->next->spacetype == SPACE_FILE && sl->next->next)
1144                         ED_area_newspace(C, sa, sl->next->next->spacetype);
1145                 else
1146                         ED_area_newspace(C, sa, sl->next->spacetype);
1147         }
1148         else {
1149                 ED_area_newspace(C, sa, SPACE_INFO);
1150         }
1151         ED_area_tag_redraw(sa);
1152
1153         /*send space change notifyer*/
1154         WM_event_add_notifier(C, NC_SPACE|ND_SPACE_CHANGED, sa);
1155 }
1156
1157 static const char *editortype_pup(void)
1158 {
1159         return(
1160                    "Editor type:%t"
1161                    "|3D View %x1"
1162
1163                    "|%l"
1164
1165                    "|Timeline %x15"
1166                    "|Graph Editor %x2"
1167                    "|DopeSheet %x12"
1168                    "|NLA Editor %x13"
1169
1170                    "|%l"
1171
1172                    "|UV/Image Editor %x6"
1173
1174                    "|Video Sequence Editor %x8"
1175                    "|Text Editor %x9"
1176                    "|Node Editor %x16"
1177                    "|Logic Editor %x17"
1178
1179                    "|%l"
1180
1181                    "|Properties %x4"
1182                    "|Outliner %x3"
1183                    "|User Preferences %x19"
1184                    "|Info%x7"
1185
1186                    "|%l"
1187
1188                    "|File Browser %x5"
1189
1190                    "|%l"
1191
1192                    "|Python Console %x18"
1193                    );
1194 }
1195
1196 static void spacefunc(struct bContext *C, void *UNUSED(arg1), void *UNUSED(arg2))
1197 {
1198         ED_area_newspace(C, CTX_wm_area(C), CTX_wm_area(C)->butspacetype);
1199         ED_area_tag_redraw(CTX_wm_area(C));
1200
1201         /*send space change notifyer*/
1202         WM_event_add_notifier(C, NC_SPACE|ND_SPACE_CHANGED, CTX_wm_area(C));
1203 }
1204
1205 /* returns offset for next button in header */
1206 int ED_area_header_switchbutton(const bContext *C, uiBlock *block, int yco)
1207 {
1208         ScrArea *sa= CTX_wm_area(C);
1209         uiBut *but;
1210         int xco= 8;
1211
1212         but= uiDefIconTextButC(block, ICONTEXTROW, 0, ICON_VIEW3D,
1213                                                    editortype_pup(), xco, yco, XIC+10, YIC,
1214                                                    &(sa->butspacetype), 1.0, SPACEICONMAX, 0, 0,
1215                                                    "Displays current editor type. "
1216                                                    "Click for menu of available types");
1217         uiButSetFunc(but, spacefunc, NULL, NULL);
1218
1219         return xco + XIC + 14;
1220 }
1221
1222 int ED_area_header_standardbuttons(const bContext *C, uiBlock *block, int yco)
1223 {
1224         ScrArea *sa= CTX_wm_area(C);
1225         int xco= 8;
1226
1227         if (!sa->full)
1228                 xco= ED_area_header_switchbutton(C, block, yco);
1229
1230         uiBlockSetEmboss(block, UI_EMBOSSN);
1231
1232         if (sa->flag & HEADER_NO_PULLDOWN) {
1233                 uiDefIconButBitS(block, TOG, HEADER_NO_PULLDOWN, 0,
1234                                                  ICON_DISCLOSURE_TRI_RIGHT,
1235                                                  xco,yco,XIC,YIC-2,
1236                                                  &(sa->flag), 0, 0, 0, 0,
1237                                                  "Show pulldown menus");
1238         }
1239         else {
1240                 uiDefIconButBitS(block, TOG, HEADER_NO_PULLDOWN, 0,
1241                                                  ICON_DISCLOSURE_TRI_DOWN,
1242                                                  xco,yco,XIC,YIC-2,
1243                                                  &(sa->flag), 0, 0, 0, 0,
1244                                                  "Hide pulldown menus");
1245         }
1246
1247         uiBlockSetEmboss(block, UI_EMBOSS);
1248
1249         return xco + XIC;
1250 }
1251
1252 /************************ standard UI regions ************************/
1253
1254 void ED_region_panels(const bContext *C, ARegion *ar, int vertical, const char *context, int contextnr)
1255 {
1256         ScrArea *sa= CTX_wm_area(C);
1257         uiStyle *style= U.uistyles.first;
1258         uiBlock *block;
1259         PanelType *pt;
1260         Panel *panel;
1261         View2D *v2d= &ar->v2d;
1262         View2DScrollers *scrollers;
1263         int xco, yco, x, y, miny=0, w, em, header, triangle, open, newcontext= 0;
1264
1265         if(contextnr >= 0)
1266                 newcontext= UI_view2d_tab_set(v2d, contextnr);
1267
1268         if(vertical) {
1269                 w= v2d->cur.xmax - v2d->cur.xmin;
1270                 em= (ar->type->prefsizex)? 10: 20;
1271         }
1272         else {
1273                 w= UI_PANEL_WIDTH;
1274                 em= (ar->type->prefsizex)? 10: 20;
1275         }
1276
1277         x= 0;
1278         y= -style->panelouter;
1279
1280         /* create panels */
1281         uiBeginPanels(C, ar);
1282
1283         /* set view2d view matrix for scrolling (without scrollers) */
1284         UI_view2d_view_ortho(v2d);
1285
1286         for(pt= ar->type->paneltypes.first; pt; pt= pt->next) {
1287                 /* verify context */
1288                 if(context)
1289                         if(pt->context[0] && strcmp(context, pt->context) != 0)
1290                                 continue;
1291
1292                 /* draw panel */
1293                 if(pt->draw && (!pt->poll || pt->poll(C, pt))) {
1294                         block= uiBeginBlock(C, ar, pt->idname, UI_EMBOSS);
1295                         panel= uiBeginPanel(sa, ar, block, pt, &open);
1296
1297                         /* bad fixed values */
1298                         header= (pt->flag & PNL_NO_HEADER)? 0: 20;
1299                         triangle= 22;
1300
1301                         if(vertical)
1302                                 y -= header;
1303
1304                         if(pt->draw_header && header && (open || vertical)) {
1305                                 /* for enabled buttons */
1306                                 panel->layout= uiBlockLayout(block, UI_LAYOUT_HORIZONTAL, UI_LAYOUT_HEADER,
1307                                         triangle, header+style->panelspace, header, 1, style);
1308
1309                                 pt->draw_header(C, panel);
1310
1311                                 uiBlockLayoutResolve(block, &xco, &yco);
1312                                 panel->labelofs= xco - triangle;
1313                                 panel->layout= NULL;
1314                         }
1315                         else {
1316                                 panel->labelofs= 0;
1317                         }
1318
1319                         if(open) {
1320                                 short panelContext;
1321
1322                                 /* panel context can either be toolbar region or normal panels region */
1323                                 if (ar->regiontype == RGN_TYPE_TOOLS)
1324                                         panelContext= UI_LAYOUT_TOOLBAR;
1325                                 else
1326                                         panelContext= UI_LAYOUT_PANEL;
1327
1328                                 panel->layout= uiBlockLayout(block, UI_LAYOUT_VERTICAL, panelContext,
1329                                         style->panelspace, 0, w-2*style->panelspace, em, style);
1330
1331                                 pt->draw(C, panel);
1332
1333                                 uiBlockLayoutResolve(block, &xco, &yco);
1334                                 panel->layout= NULL;
1335
1336                                 yco -= 2*style->panelspace;
1337                                 uiEndPanel(block, w, -yco);
1338                         }
1339                         else {
1340                                 yco= 0;
1341                                 uiEndPanel(block, w, 0);
1342                         }
1343
1344                         uiEndBlock(C, block);
1345
1346                         if(vertical) {
1347                                 if(pt->flag & PNL_NO_HEADER)
1348                                         y += yco;
1349                                 else
1350                                         y += yco-style->panelouter;
1351                         }
1352                         else {
1353                                 x += w;
1354                                 miny= MIN2(y, yco-style->panelouter-header);
1355                         }
1356                 }
1357         }
1358
1359         if(vertical)
1360                 x += w;
1361         else
1362                 y= miny;
1363
1364         /* in case there are no panels */
1365         if(x == 0 || y == 0) {
1366                 x= UI_PANEL_WIDTH;
1367                 y= UI_PANEL_WIDTH;
1368         }
1369
1370         /* clear */
1371         UI_ThemeClearColor((ar->type->regionid == RGN_TYPE_PREVIEW)?TH_PREVIEW_BACK:TH_BACK);
1372         glClear(GL_COLOR_BUFFER_BIT);
1373
1374         /* before setting the view */
1375         if(vertical) {
1376                 /* only allow scrolling in vertical direction */
1377                 v2d->keepofs |= V2D_LOCKOFS_X|V2D_KEEPOFS_Y;
1378                 v2d->keepofs &= ~(V2D_LOCKOFS_Y|V2D_KEEPOFS_X);
1379                 v2d->scroll |= V2D_SCROLL_HORIZONTAL_HIDE;
1380                 v2d->scroll &= ~V2D_SCROLL_VERTICAL_HIDE;
1381
1382                 // don't jump back when panels close or hide
1383                 if(!newcontext)
1384                         y= MAX2(-y, -v2d->cur.ymin);
1385                 else
1386                         y= -y;
1387         }
1388         else {
1389                 /* for now, allow scrolling in both directions (since layouts are optimised for vertical,
1390                  * they often don't fit in horizontal layout)
1391                  */
1392                 v2d->keepofs &= ~(V2D_LOCKOFS_X|V2D_LOCKOFS_Y|V2D_KEEPOFS_X|V2D_KEEPOFS_Y);
1393                 //v2d->keepofs |= V2D_LOCKOFS_Y|V2D_KEEPOFS_X;
1394                 //v2d->keepofs &= ~(V2D_LOCKOFS_X|V2D_KEEPOFS_Y);
1395                 v2d->scroll |= V2D_SCROLL_VERTICAL_HIDE;
1396                 v2d->scroll &= ~V2D_SCROLL_HORIZONTAL_HIDE;
1397
1398                 // don't jump back when panels close or hide
1399                 if(!newcontext)
1400                         x= MAX2(x, v2d->cur.xmax);
1401                 y= -y;
1402         }
1403
1404         // +V2D_SCROLL_HEIGHT is workaround to set the actual height
1405         UI_view2d_totRect_set(v2d, x+V2D_SCROLL_WIDTH, y+V2D_SCROLL_HEIGHT);
1406
1407         /* set the view */
1408         UI_view2d_view_ortho(v2d);
1409
1410         /* this does the actual drawing! */
1411         uiEndPanels(C, ar);
1412
1413         /* restore view matrix */
1414         UI_view2d_view_restore(C);
1415
1416         /* scrollers */
1417         scrollers= UI_view2d_scrollers_calc(C, v2d, V2D_ARG_DUMMY, V2D_ARG_DUMMY, V2D_ARG_DUMMY, V2D_ARG_DUMMY);
1418         UI_view2d_scrollers_draw(C, v2d, scrollers);
1419         UI_view2d_scrollers_free(scrollers);
1420 }
1421
1422 void ED_region_panels_init(wmWindowManager *wm, ARegion *ar)
1423 {
1424         wmKeyMap *keymap;
1425
1426         // XXX quick hacks for files saved with 2.5 already (i.e. the builtin defaults file)
1427                 // scrollbars for button regions
1428         ar->v2d.scroll |= (V2D_SCROLL_RIGHT|V2D_SCROLL_BOTTOM);
1429         ar->v2d.scroll |= V2D_SCROLL_HORIZONTAL_HIDE;
1430         ar->v2d.scroll &= ~V2D_SCROLL_VERTICAL_HIDE;
1431         ar->v2d.keepzoom |= V2D_KEEPZOOM;
1432
1433                 // correctly initialised User-Prefs?
1434         if(!(ar->v2d.align & V2D_ALIGN_NO_POS_Y))
1435                 ar->v2d.flag &= ~V2D_IS_INITIALISED;
1436
1437         UI_view2d_region_reinit(&ar->v2d, V2D_COMMONVIEW_PANELS_UI, ar->winx, ar->winy);
1438
1439         keymap= WM_keymap_find(wm->defaultconf, "View2D Buttons List", 0, 0);
1440         WM_event_add_keymap_handler(&ar->handlers, keymap);
1441 }
1442
1443 void ED_region_header(const bContext *C, ARegion *ar)
1444 {
1445         uiStyle *style= U.uistyles.first;
1446         uiBlock *block;
1447         uiLayout *layout;
1448         HeaderType *ht;
1449         Header header = {NULL};
1450         int maxco, xco, yco;
1451
1452         /* clear */
1453         UI_ThemeClearColor((ED_screen_area_active(C))?TH_HEADER:TH_HEADERDESEL);
1454         glClear(GL_COLOR_BUFFER_BIT);
1455
1456         /* set view2d view matrix for scrolling (without scrollers) */
1457         UI_view2d_view_ortho(&ar->v2d);
1458
1459         xco= maxco= 8;
1460         yco= HEADERY-4;
1461
1462         /* draw all headers types */
1463         for(ht= ar->type->headertypes.first; ht; ht= ht->next) {
1464                 block= uiBeginBlock(C, ar, ht->idname, UI_EMBOSS);
1465                 layout= uiBlockLayout(block, UI_LAYOUT_HORIZONTAL, UI_LAYOUT_HEADER, xco, yco, HEADERY-6, 1, style);
1466
1467                 if(ht->draw) {
1468                         header.type= ht;
1469                         header.layout= layout;
1470                         ht->draw(C, &header);
1471
1472                         /* for view2d */
1473                         xco= uiLayoutGetWidth(layout);
1474                         if(xco > maxco)
1475                                 maxco= xco;
1476                 }
1477
1478                 uiBlockLayoutResolve(block, &xco, &yco);
1479
1480                 /* for view2d */
1481                 if(xco > maxco)
1482                         maxco= xco;
1483
1484                 uiEndBlock(C, block);
1485                 uiDrawBlock(C, block);
1486         }
1487
1488         /* always as last  */
1489         UI_view2d_totRect_set(&ar->v2d, maxco+XIC+80, ar->v2d.tot.ymax-ar->v2d.tot.ymin);
1490
1491         /* restore view matrix? */
1492         UI_view2d_view_restore(C);
1493 }
1494
1495 void ED_region_header_init(ARegion *ar)
1496 {
1497         UI_view2d_region_reinit(&ar->v2d, V2D_COMMONVIEW_HEADER, ar->winx, ar->winy);
1498 }
1499