source/blender/src/interface.c

   1 /**
   2  * $Id$
   3  *
   4  * ***** BEGIN GPL LICENSE BLOCK *****
   5  *
   6  * This program is free software; you can redistribute it and/or
   7  * modify it under the terms of the GNU General Public License
   8  * as published by the Free Software Foundation; either version 2
   9  * of the License, or (at your option) any later version.
  10  *
  11  * This program is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14  * GNU General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU General Public License
  17  * along with this program; if not, write to the Free Software Foundation,
  18  * Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
  19  *
  20  * The Original Code is Copyright (C) 2001-2002 by NaN Holding BV.
  21  * All rights reserved.
  22  *
  23  * The Original Code is: all of this file.
  24  *
  25  * Contributor(s): none yet.
  26  *
  27  * ***** END GPL LICENSE BLOCK *****
  28  */
  29
  30 /*
  31      a full doc with API notes can be found in bf-blender/blender/doc/interface_API.txt
  32
  33  */
  34
  35
  36 #include <math.h>
  37 #include <stdlib.h>
  38 #include <string.h>
  39 #include <ctype.h>
  40
  41 #ifdef HAVE_CONFIG_H
  42 #include <config.h>
  43 #endif
  44
  45 #ifndef WIN32
  46 #include <unistd.h>
  47 #else
  48 #include <io.h>
  49 #endif
  50
  51 #include "MEM_guardedalloc.h"
  52
  53 #include "PIL_time.h"
  54
  55 #include "BMF_Api.h"
  56 #include "BIF_language.h"
  57 #ifdef INTERNATIONAL
  58 #include "FTF_Api.h"
  59 #endif // INTERNATIONAL
  60
  61 #include "BLI_blenlib.h"
  62 #include "BLI_arithb.h"
  63
  64 #include "DNA_color_types.h"
  65 #include "DNA_screen_types.h"
  66 #include "DNA_space_types.h"
  67 #include "DNA_userdef_types.h"
  68 #include "DNA_vec_types.h"
  69 #include "DNA_object_types.h"
  70 #include "DNA_texture_types.h"
  71 #include "DNA_vfont_types.h"
  72
  73 #include "BKE_blender.h"
  74 #include "BKE_colortools.h"
  75 #include "BKE_global.h"
  76 #include "BKE_library.h"
  77 #include "BKE_texture.h"
  78 #include "BKE_utildefines.h"
  79
  80 #include "BIF_cursors.h"
  81 #include "BIF_gl.h"
  82 #include "BIF_graphics.h"
  83 #include "BIF_keyval.h"
  84 #include "BIF_mainqueue.h"
  85 #include "BIF_resources.h"
  86 #include "BIF_screen.h"
  87 #include "BIF_toolbox.h"
  88 #include "BIF_mywindow.h"
  89 #include "BIF_space.h"
  90 #include "BIF_glutil.h"
  91 #include "BIF_editfont.h"
  92 #include "BIF_interface.h"
  93 #include "BIF_interface_icons.h"
  94 #include "BIF_butspace.h"
  95 #include "BIF_previewrender.h"
  96
  97 #include "BSE_view.h"
  98
  99 #ifndef DISABLE_PYTHON
 100 #include "BPY_extern.h" /* for BPY_button_eval */
 101 #endif
 102
 103 #include "GHOST_Types.h" /* for tablet data */
 104
 105 #include "mydevice.h"
 106 #include "interface.h"
 107 #include "blendef.h"
 108 #include "winlay.h"
 109
 110 #include "BLO_sys_types.h" // for intptr_t support
 111
 112 #define INSIDE_BLOCK            1
 113 #define INSIDE_PANEL_HEADER     2
 114 #define INSIDE_PANEL_SCALE      3
 115
 116 /* naming conventions:
 117  *
 118  * uiBlahBlah()         external function
 119  * ui_blah_blah()       internal function
 120  */
 121
 122 /***/
 123 /* ************ GLOBALS ************* */
 124
 125 float UIwinmat[4][4];
 126 static int UIlock= 0, UIafterval;
 127 static char *UIlockstr=NULL;
 128
 129 static void (*UIafterfunc_butm)(void *arg, int event);
 130 static void (*UIafterfunc_but)(void *arg1, void *arg2);
 131 static void *UIafterfunc_arg1, *UIafterfunc_arg2;
 132
 133 static uiFont UIfont[UI_ARRAY];  // no init needed
 134 uiBut *UIbuttip;
 135
 136 static ColorBand but_copypaste_coba;
 137
 138 /* ************* PROTOTYPES ***************** */
 139
 140 static void ui_set_but_val(uiBut *but, double value);
 141 static void ui_do_but_tip(uiBut *buttip);
 142
 143 /* ****************************** */
 144
 145 static int uibut_contains_pt(uiBut *but, short *pt)
 146 {
 147         return ((but->x1<pt[0] && but->x2>=pt[0]) &&
 148                         (but->y1<pt[1] && but->y2>=pt[1]));
 149 }
 150
 151 static void uibut_do_func(uiBut *but)
 152 {
 153         if (but->func) {
 154                 but->func(but->func_arg1, but->func_arg2);
 155         }
 156 }
 157
 158 /* ************* window matrix ************** */
 159
 160
 161 void ui_graphics_to_window(int win, float *x, float *y) /* for rectwrite  */
 162 {
 163         float gx, gy;
 164         int sx, sy;
 165         int getsizex, getsizey;
 166
 167         bwin_getsize(win, &getsizex, &getsizey);
 168         bwin_getsuborigin(win, &sx, &sy);
 169
 170         gx= *x;
 171         gy= *y;
 172         *x= ((float)sx) + ((float)getsizex)*(0.5+ 0.5*(gx*UIwinmat[0][0]+ gy*UIwinmat[1][0]+ UIwinmat[3][0]));
 173         *y= ((float)sy) + ((float)getsizey)*(0.5+ 0.5*(gx*UIwinmat[0][1]+ gy*UIwinmat[1][1]+ UIwinmat[3][1]));
 174 }
 175
 176 void ui_graphics_to_window_rct(int win, rctf *graph, rcti *winr)
 177 {
 178         float gx, gy;
 179         int sx, sy;
 180         int getsizex, getsizey;
 181
 182         bwin_getsize(win, &getsizex, &getsizey);
 183         bwin_getsuborigin(win, &sx, &sy);
 184
 185         gx= graph->xmin;
 186         gy= graph->ymin;
 187         winr->xmin= (int)((float)sx) + ((float)getsizex)*(0.5+ 0.5*(gx*UIwinmat[0][0]+ gy*UIwinmat[1][0]+ UIwinmat[3][0]));
 188         winr->ymin= (int)((float)sy) + ((float)getsizey)*(0.5+ 0.5*(gx*UIwinmat[0][1]+ gy*UIwinmat[1][1]+ UIwinmat[3][1]));
 189         gx= graph->xmax;
 190         gy= graph->ymax;
 191         winr->xmax= (int)((float)sx) + ((float)getsizex)*(0.5+ 0.5*(gx*UIwinmat[0][0]+ gy*UIwinmat[1][0]+ UIwinmat[3][0]));
 192         winr->ymax= (int)((float)sy) + ((float)getsizey)*(0.5+ 0.5*(gx*UIwinmat[0][1]+ gy*UIwinmat[1][1]+ UIwinmat[3][1]));
 193 }
 194
 195
 196 void ui_window_to_graphics(int win, float *x, float *y) /* for mouse cursor */
 197 {
 198         float a, b, c, d, e, f, px, py;
 199         int getsizex, getsizey;
 200
 201         bwin_getsize(win, &getsizex, &getsizey);
 202
 203         a= .5*((float)getsizex)*UIwinmat[0][0];
 204         b= .5*((float)getsizex)*UIwinmat[1][0];
 205         c= .5*((float)getsizex)*(1.0+UIwinmat[3][0]);
 206
 207         d= .5*((float)getsizey)*UIwinmat[0][1];
 208         e= .5*((float)getsizey)*UIwinmat[1][1];
 209         f= .5*((float)getsizey)*(1.0+UIwinmat[3][1]);
 210
 211         px= *x;
 212         py= *y;
 213
 214         *y=  (a*(py-f) + d*(c-px))/(a*e-d*b);
 215         *x= (px- b*(*y)- c)/a;
 216
 217 }
 218
 219
 220 /* ************* SAVE UNDER ************ */
 221
 222 /* new method:
 223
 224 OverDraw *ui_begin_overdraw(int minx, int miny, int maxx, int maxy);
 225 - enforces mainwindow to become active
 226 - grabs copy from frontbuffer, pastes in back
 227
 228 void ui_flush_overdraw(OverDraw *od);
 229 - copies backbuffer to front
 230
 231 void ui_refresh_overdraw(Overdraw *od);
 232 - pastes in back copy of frontbuffer again for fresh drawing
 233
 234 void ui_end_overdraw(OverDraw *od);
 235 - puts back on frontbuffer saved image
 236 - frees copy
 237 - sets back active blender area
 238 - signals backbuffer to be corrupt (sel buffer!)
 239
 240 */
 241
 242 /* frontbuffer updates now glCopyPixels too, with block->flush rect */
 243
 244 /* new idea for frontbuffer updates:
 245
 246 - hilites: with blended poly?
 247
 248 - full updates... thats harder, but:
 249   - copy original
 250   - before draw, always paste to backbuf
 251   - flush
 252   - always end with redraw event for full update
 253
 254 */
 255
 256 static void myglCopyPixels(int a, int b, int c, int d, int e)
 257 {
 258         if(G.rt==2) {
 259                 unsigned int *buf= MEM_mallocN(4*c*d, "temp glcopypixels");
 260                 glReadPixels(a, b, c, d, GL_RGBA, GL_UNSIGNED_BYTE, buf);
 261                 glDrawPixels(c, d, GL_RGBA, GL_UNSIGNED_BYTE, buf);
 262                 MEM_freeN(buf);
 263         }
 264         else glCopyPixels(a, b, c, d, e);
 265 }
 266
 267 typedef struct {
 268         short x, y, sx, sy, oldwin;
 269         unsigned int *rect;
 270 } uiOverDraw;
 271
 272
 273 static uiOverDraw *ui_begin_overdraw(int minx, int miny, int maxx, int maxy)
 274 {
 275         uiOverDraw *od=NULL;
 276
 277         // dirty patch removed for sun and sgi to mywindow.c commented out
 278
 279         /* clip with actual window size */
 280         if(minx < 0) minx= 0;
 281         if(miny < 0) miny= 0;
 282         if(maxx >= G.curscreen->sizex) maxx= G.curscreen->sizex-1;
 283         if(maxy >= G.curscreen->sizey) maxy= G.curscreen->sizey-1;
 284
 285         if(minx<maxx && miny<maxy) {
 286                 od= MEM_callocN(sizeof(uiOverDraw), "overdraw");
 287
 288                 od->x= minx;
 289                 od->y= miny;
 290                 od->sx= maxx-minx;
 291                 od->sy= maxy-miny;
 292                 od->rect= MEM_mallocN(od->sx*od->sy*4, "temp_frontbuffer_image");
 293
 294                 od->oldwin= mywinget();
 295                 mywinset(G.curscreen->mainwin);
 296                 /* grab front */
 297                 glReadBuffer(GL_FRONT);
 298                 glReadPixels(od->x, od->y, od->sx, od->sy, GL_RGBA, GL_UNSIGNED_BYTE, od->rect);
 299                 glReadBuffer(GL_BACK);
 300                 /* paste in back */
 301                 glDisable(GL_DITHER);
 302                 glRasterPos2f(od->x, od->y);
 303                 glDrawPixels(od->sx, od->sy, GL_RGBA, GL_UNSIGNED_BYTE, od->rect);
 304                 glEnable(GL_DITHER);
 305         }
 306
 307         return od;
 308 }
 309
 310 static void ui_flush_overdraw(uiOverDraw *od)
 311 {
 312
 313         if(od==NULL) return;
 314         glDisable(GL_DITHER);
 315         glReadBuffer(GL_BACK);
 316         glDrawBuffer(GL_FRONT);
 317         glRasterPos2s(od->x, od->y);
 318         myglCopyPixels(od->x, od->y, od->sx, od->sy, GL_COLOR);
 319         glEnable(GL_DITHER);
 320         bglFlush();
 321         glDrawBuffer(GL_BACK);
 322 }
 323
 324 /* special flush version to enable transparent menus */
 325 static void ui_block_flush_overdraw(uiBlock *block)
 326 {
 327
 328         if(block->flag & UI_BLOCK_LOOP) {
 329                 char col[4];
 330
 331                 BIF_GetThemeColor4ubv(TH_MENU_BACK, col);
 332                 if(col[3]!=255) {
 333                         uiBut *bt;
 334                         uiOverDraw *od= block->overdraw;
 335
 336                         /* completely draw all! */
 337                         glRasterPos2s(od->x, od->y);
 338                         glDrawPixels(od->sx, od->sy, GL_RGBA, GL_UNSIGNED_BYTE, od->rect);
 339
 340                         uiDrawMenuBox(block->minx, block->miny, block->maxx, block->maxy, block->flag);
 341                         for (bt= block->buttons.first; bt; bt= bt->next) {
 342                                 ui_draw_but(bt);
 343                         }
 344                 }
 345         }
 346
 347         ui_flush_overdraw(block->overdraw);
 348 }
 349
 350 static void ui_end_overdraw(uiOverDraw *od)
 351 {
 352         if(od==NULL) return;
 353
 354         glDisable(GL_DITHER);
 355
 356         // clear in back
 357         glRasterPos2s(od->x, od->y);
 358         glDrawPixels(od->sx, od->sy, GL_RGBA, GL_UNSIGNED_BYTE, od->rect);
 359
 360         // clear in front
 361         glDrawBuffer(GL_FRONT);
 362         glRasterPos2s(od->x, od->y);
 363         glDrawPixels(od->sx, od->sy, GL_RGBA, GL_UNSIGNED_BYTE, od->rect);
 364
 365         bglFlush();
 366         glDrawBuffer(GL_BACK);
 367         glEnable(GL_DITHER);
 368
 369         if(od->oldwin) mywinset(od->oldwin);
 370
 371         MEM_freeN(od->rect);
 372         MEM_freeN(od);
 373
 374         markdirty_all_back();   // sets flags only
 375 }
 376
 377 /* ****************** live updates for hilites and button presses *********** */
 378
 379 void ui_block_flush_back(uiBlock *block)
 380 {
 381         int minx, miny, sizex, sizey;
 382
 383         /* note; this routine also has to work for block loop */
 384         if(block->needflush==0) return;
 385
 386         /* exception, when we cannot use backbuffer for draw... */
 387         if(block->flag & UI_BLOCK_FRONTBUFFER) {
 388                 bglFlush();
 389                 glDrawBuffer(GL_BACK);
 390                 block->needflush= 0;
 391                 return;
 392         }
 393
 394         /* copy pixels works on window coords, so we move to window space */
 395
 396         ui_graphics_to_window(block->win, &block->flush.xmin, &block->flush.ymin);
 397         ui_graphics_to_window(block->win, &block->flush.xmax, &block->flush.ymax);
 398         minx= floor(block->flush.xmin);
 399         miny= floor(block->flush.ymin);
 400         sizex= ceil(block->flush.xmax-block->flush.xmin);
 401         sizey= ceil(block->flush.ymax-block->flush.ymin);
 402
 403         if(sizex>0 && sizey>0) {
 404                 glPushMatrix();
 405                 mywinset(G.curscreen->mainwin);
 406
 407                 glDisable(GL_DITHER);
 408                 glReadBuffer(GL_BACK);
 409                 glDrawBuffer(GL_FRONT);
 410                 glRasterPos2i(minx, miny);
 411 #ifdef __sun__
 412                 myglCopyPixels(minx, miny+1, sizex, sizey, GL_COLOR);
 413 #else
 414                 myglCopyPixels(minx, miny, sizex, sizey, GL_COLOR);
 415 #endif
 416                 glEnable(GL_DITHER);
 417                 bglFlush();
 418                 glDrawBuffer(GL_BACK);
 419
 420                 mywinset(block->win);
 421                 glPopMatrix();
 422
 423                 markdirty_win_back(block->win);
 424         }
 425
 426         block->needflush= 0;
 427 }
 428
 429 /* merge info for live updates in frontbuf */
 430 void ui_block_set_flush(uiBlock *block, uiBut *but)
 431 {
 432         /* clear signal */
 433         if(but==NULL) {
 434                 block->needflush= 0;
 435
 436                 block->flush.xmin= 0.0;
 437                 block->flush.xmax= 0.0;
 438         }
 439         else {
 440                 /* exception, when we cannot use backbuffer for draw... */
 441                 if(block->flag & UI_BLOCK_FRONTBUFFER) {
 442                         glDrawBuffer(GL_FRONT);
 443                 }
 444                 else if(block->needflush==0) {
 445                         /* first rect */
 446                         block->flush.xmin= but->x1;
 447                         block->flush.xmax= but->x2;
 448                         block->flush.ymin= but->y1;
 449                         block->flush.ymax= but->y2;
 450
 451                 }
 452                 else {
 453                         /* union of rects */
 454                         if(block->flush.xmin > but->x1) block->flush.xmin= but->x1;
 455                         if(block->flush.xmax < but->x2) block->flush.xmax= but->x2;
 456                         if(block->flush.ymin > but->y1) block->flush.ymin= but->y1;
 457                         if(block->flush.ymax < but->y2) block->flush.ymax= but->y2;
 458                 }
 459
 460                 block->needflush= 1;
 461
 462         }
 463 }
 464
 465 /* ******************* copy and paste ********************  */
 466
 467 /* c = copy, v = paste */
 468 /* return 1 when something changed */
 469 static int ui_but_copy_paste(uiBut *but, char mode)
 470 {
 471         void *poin;
 472         char buf[UI_MAX_DRAW_STR+1]= {0};
 473         double val;
 474         float f[3];
 475
 476         if(mode=='v' && but->lock) return 0;
 477         poin= but->poin;
 478
 479         if(mode=='v') {
 480                 /* extract first line from clipboard in case of multi-line copies */
 481                 char *p = getClipboard(0);
 482                 if(p) {
 483                         int i = 0;
 484                         while (*p && *p!='\r' && *p!='\n' && i<UI_MAX_DRAW_STR) {
 485                                 buf[i++]=*p;
 486                                 p++;
 487                         }
 488                         buf[i]= 0;
 489                 }
 490         }
 491
 492         /* numeric value */
 493         if ELEM4(but->type, NUM, NUMABS, NUMSLI, HSVSLI) {
 494
 495                 if(poin==NULL);
 496                 else if(mode=='c') {
 497                         sprintf(buf, "%f", ui_get_but_val(but));
 498                         putClipboard(buf, 0);
 499                 }
 500                 else {
 501                         if (sscanf(buf, " %lf ", &val) == 1) {
 502                                 ui_set_but_val(but, val);
 503                                 uibut_do_func(but);
 504                                 ui_check_but(but);
 505                                 return 1;
 506                         }
 507                 }
 508         }
 509
 510         /* RGB triple */
 511         else if(but->type==COL) {
 512
 513                 if(poin==NULL);
 514                 else if(mode=='c') {
 515                         if(but->pointype==FLO) {
 516                                 float *fp= (float *) poin;
 517                                 sprintf(buf, "[%f, %f, %f]", fp[0], fp[1], fp[2]);
 518                                 putClipboard(buf, 0);
 519                         }
 520                         else if (but->pointype==CHA) {
 521                                 char *cp= (char *) poin;
 522                                 f[0]= (float)(cp[0]/255.0);
 523                                 f[1]= (float)(cp[1]/255.0);
 524                                 f[2]= (float)(cp[2]/255.0);
 525                                 sprintf(buf, "[%f, %f, %f]", f[0], f[1], f[2]);
 526                                 putClipboard(buf, 0);
 527                         }
 528
 529                 }
 530                 else {
 531                         if(but->pointype==FLO) {
 532                                 float *fp= (float *) poin;
 533                                 if (sscanf(buf, "[%f, %f, %f]", &f[0], &f[1], &f[2]) == 3) {
 534                                         fp[0]= f[0];
 535                                         fp[1]= f[1];
 536                                         fp[2]= f[2];
 537                                         return 1;
 538                                 }
 539                         }
 540                         else if (but->pointype==CHA) {
 541                                 char *cp= (char *) poin;
 542                                 if (sscanf(buf, "[%f, %f, %f]", &f[0], &f[1], &f[2]) == 3) {
 543                                         cp[0]= (char)(f[0]*255.0);
 544                                         cp[1]= (char)(f[1]*255.0);
 545                                         cp[2]= (char)(f[2]*255.0);
 546                                         return 1;
 547                                 }
 548                         }
 549
 550                 }
 551         }
 552
 553         /* text/string data */
 554         else if(but->type==TEX) {
 555                 if(poin==NULL);
 556                 else if(mode=='c') {
 557                         strncpy(buf, but->poin, but->max);
 558                         buf[(int)but->max]= 0;
 559                         putClipboard(buf, 0);
 560                 }
 561                 else {
 562                         char backstr[UI_MAX_DRAW_STR];
 563                         /* give butfunc the original text too */
 564                         /* feature used for bone renaming, channels, etc */
 565                         if(but->func_arg2==NULL) {
 566                                 strncpy(backstr, but->poin, UI_MAX_DRAW_STR);
 567                                 but->func_arg2= backstr;
 568                         }
 569                         strncpy(but->poin, buf, but->max);
 570                         uibut_do_func(but);
 571                         ui_check_but(but);
 572                         return 1;
 573                 }
 574         }
 575
 576         /* ID name string (eg. OB:Object = "Object") */
 577         else if(but->type==IDPOIN) {
 578                 if(mode=='c') {
 579                         ID *id= *but->idpoin_idpp;
 580                         if(id) {
 581                                 strncpy(buf, id->name+2, 22);
 582                                 buf[22]= 0;
 583                                 putClipboard(buf, 0);
 584                         }
 585                 }
 586                 else {
 587                         but->idpoin_func(buf, but->idpoin_idpp);
 588                         ui_check_but(but);
 589                         return 1;
 590                 }
 591         }
 592
 593         /* colorband (not supported by system clipboard) */
 594         else if(but->type==BUT_COLORBAND) {
 595                 if(mode=='c') {
 596                         if (!but->poin) {
 597                                 return 0;
 598                         }
 599                         memcpy( &but_copypaste_coba, but->poin, sizeof(ColorBand) );
 600                 } else {
 601                         if (but_copypaste_coba.tot==0) {
 602                                 return 0;
 603                         }
 604                         if (!but->poin) {
 605                                 but->poin= MEM_callocN( sizeof(ColorBand), "colorband");
 606                         }
 607                         memcpy( but->poin, &but_copypaste_coba, sizeof(ColorBand) );
 608                         return 1;
 609                 }
 610         }
 611
 612         return 0;
 613 }
 614
 615 /* ******************* block calc ************************* */
 616
 617 /* only for pulldowns */
 618 void uiTextBoundsBlock(uiBlock *block, int addval)
 619 {
 620         uiBut *bt;
 621         int i = 0, j, x1addval= 0, nextcol;
 622
 623         bt= block->buttons.first;
 624         while(bt) {
 625                 if(bt->type!=SEPR) {
 626                         int transopts= (U.transopts & USER_TR_BUTTONS);
 627                         if(bt->type==TEX || bt->type==IDPOIN) transopts= 0;
 628                         j= BIF_GetStringWidth(bt->font, bt->drawstr, transopts);
 629
 630                         if(j > i) i = j;
 631                 }
 632                 bt= bt->next;
 633         }
 634
 635         /* cope with multi collumns */
 636         bt= block->buttons.first;
 637         while(bt) {
 638                 if(bt->next && bt->x1 < bt->next->x1)
 639                         nextcol= 1;
 640                 else nextcol= 0;
 641
 642                 bt->x1 = x1addval;
 643                 bt->x2 = bt->x1 + i + addval;
 644
 645                 ui_check_but(bt);       // clips text again
 646
 647                 if(nextcol)
 648                         x1addval+= i + addval;
 649
 650                 bt= bt->next;
 651         }
 652 }
 653
 654
 655 void uiBoundsBlock(uiBlock *block, int addval)
 656 {
 657         uiBut *bt;
 658         int xof;
 659
 660         if(block==NULL)
 661                 return;
 662
 663         if(block->buttons.first==NULL) {
 664                 if(block->panel) {
 665                         block->minx= 0.0; block->maxx= block->panel->sizex;
 666                         block->miny= 0.0; block->maxy= block->panel->sizey;
 667                 }
 668         }
 669         else {
 670
 671                 block->minx= block->miny= 10000;
 672                 block->maxx= block->maxy= -10000;
 673
 674                 bt= block->buttons.first;
 675                 while(bt) {
 676                         if(bt->x1 < block->minx) block->minx= bt->x1;
 677                         if(bt->y1 < block->miny) block->miny= bt->y1;
 678
 679                         if(bt->x2 > block->maxx) block->maxx= bt->x2;
 680                         if(bt->y2 > block->maxy) block->maxy= bt->y2;
 681
 682                         bt= bt->next;
 683                 }
 684
 685                 block->minx -= addval;
 686                 block->miny -= addval;
 687                 block->maxx += addval;
 688                 block->maxy += addval;
 689         }
 690
 691         /* hardcoded exception... but that one is annoying with larger safety */
 692         bt= block->buttons.first;
 693         if(bt && strncmp(bt->str, "ERROR", 5)==0) xof= 10;
 694         else xof= 40;
 695
 696         block->safety.xmin= block->minx-xof;
 697         block->safety.ymin= block->miny-xof;
 698         block->safety.xmax= block->maxx+xof;
 699         block->safety.ymax= block->maxy+xof;
 700 }
 701
 702 static void ui_positionblock(uiBlock *block, uiBut *but)
 703 {
 704         /* position block relative to but */
 705         uiBut *bt;
 706         rctf butrct;
 707         float aspect;
 708         int xsize, ysize, xof=0, yof=0, center;
 709         short dir1= 0, dir2=0;
 710
 711         /* first transform to screen coords, assuming matrix is stil OK */
 712         /* the UIwinmat is in panelspace */
 713
 714         butrct.xmin= but->x1; butrct.xmax= but->x2;
 715         butrct.ymin= but->y1; butrct.ymax= but->y2;
 716
 717         ui_graphics_to_window(block->win, &butrct.xmin, &butrct.ymin);
 718         ui_graphics_to_window(block->win, &butrct.xmax, &butrct.ymax);
 719         block->parentrct= butrct;       // will use that for pulldowns later
 720
 721         /* calc block rect */
 722         if(block->buttons.first) {
 723                 block->minx= block->miny= 10000;
 724                 block->maxx= block->maxy= -10000;
 725
 726                 bt= block->buttons.first;
 727                 while(bt) {
 728                         if(bt->x1 < block->minx) block->minx= bt->x1;
 729                         if(bt->y1 < block->miny) block->miny= bt->y1;
 730
 731                         if(bt->x2 > block->maxx) block->maxx= bt->x2;
 732                         if(bt->y2 > block->maxy) block->maxy= bt->y2;
 733
 734                         bt= bt->next;
 735                 }
 736         }
 737         else {
 738                 /* we're nice and allow empty blocks too */
 739                 block->minx= block->miny= 0;
 740                 block->maxx= block->maxy= 20;
 741         }
 742
 743         aspect= (float)(block->maxx - block->minx + 4);
 744         ui_graphics_to_window(block->win, &block->minx, &block->miny);
 745         ui_graphics_to_window(block->win, &block->maxx, &block->maxy);
 746
 747         //block->minx-= 2.0; block->miny-= 2.0;
 748         //block->maxx+= 2.0; block->maxy+= 2.0;
 749
 750         xsize= block->maxx - block->minx+4; // 4 for shadow
 751         ysize= block->maxy - block->miny+4;
 752         aspect/= (float)xsize;
 753
 754         if(but) {
 755                 short left=0, right=0, top=0, down=0;
 756
 757                 if(block->direction & UI_CENTER) center= ysize/2;
 758                 else center= 0;
 759
 760                 if( butrct.xmin-xsize > 0.0) left= 1;
 761                 if( butrct.xmax+xsize < G.curscreen->sizex) right= 1;
 762                 if( butrct.ymin-ysize+center > 0.0) down= 1;
 763                 if( butrct.ymax+ysize-center < G.curscreen->sizey) top= 1;
 764
 765                 dir1= block->direction & UI_DIRECTION;
 766
 767                 /* secundary directions */
 768                 if(dir1 & (UI_TOP|UI_DOWN)) {
 769                         if(dir1 & UI_LEFT) dir2= UI_LEFT;
 770                         else if(dir1 & UI_RIGHT) dir2= UI_RIGHT;
 771                         dir1 &= (UI_TOP|UI_DOWN);
 772                 }
 773
 774                 if(dir2==0) if(dir1==UI_LEFT || dir1==UI_RIGHT) dir2= UI_DOWN;
 775                 if(dir2==0) if(dir1==UI_TOP || dir1==UI_DOWN) dir2= UI_LEFT;
 776
 777                 /* no space at all? dont change */
 778                 if(left || right) {
 779                         if(dir1==UI_LEFT && left==0) dir1= UI_RIGHT;
 780                         if(dir1==UI_RIGHT && right==0) dir1= UI_LEFT;
 781                         /* this is aligning, not append! */
 782                         if(dir2==UI_LEFT && right==0) dir2= UI_RIGHT;
 783                         if(dir2==UI_RIGHT && left==0) dir2= UI_LEFT;
 784                 }
 785                 if(down || top) {
 786                         if(dir1==UI_TOP && top==0) dir1= UI_DOWN;
 787                         if(dir1==UI_DOWN && down==0) dir1= UI_TOP;
 788                         if(dir2==UI_TOP && top==0) dir2= UI_DOWN;
 789                         if(dir2==UI_DOWN && down==0) dir2= UI_TOP;
 790                 }
 791
 792                 if(dir1==UI_LEFT) {
 793                         xof= butrct.xmin - block->maxx;
 794                         if(dir2==UI_TOP) yof= butrct.ymin - block->miny-center;
 795                         else yof= butrct.ymax - block->maxy+center;
 796                 }
 797                 else if(dir1==UI_RIGHT) {
 798                         xof= butrct.xmax - block->minx;
 799                         if(dir2==UI_TOP) yof= butrct.ymin - block->miny-center;
 800                         else yof= butrct.ymax - block->maxy+center;
 801                 }
 802                 else if(dir1==UI_TOP) {
 803                         yof= butrct.ymax - block->miny;
 804                         if(dir2==UI_RIGHT) xof= butrct.xmax - block->maxx;
 805                         else xof= butrct.xmin - block->minx;
 806                         // changed direction?
 807                         if((dir1 & block->direction)==0) {
 808                                 if(block->direction & UI_SHIFT_FLIPPED)
 809                                         xof+= dir2==UI_LEFT?25:-25;
 810                                 uiBlockFlipOrder(block);
 811                         }
 812                 }
 813                 else if(dir1==UI_DOWN) {
 814                         yof= butrct.ymin - block->maxy;
 815                         if(dir2==UI_RIGHT) xof= butrct.xmax - block->maxx;
 816                         else xof= butrct.xmin - block->minx;
 817                         // changed direction?
 818                         if((dir1 & block->direction)==0) {
 819                                 if(block->direction & UI_SHIFT_FLIPPED)
 820                                         xof+= dir2==UI_LEFT?25:-25;
 821                                 uiBlockFlipOrder(block);
 822                         }
 823                 }
 824
 825                 /* and now we handle the exception; no space below or to top */
 826                 if(top==0 && down==0) {
 827                         if(dir1==UI_LEFT || dir1==UI_RIGHT) {
 828                                 // align with bottom of screen
 829                                 yof= ysize;
 830                         }
 831                 }
 832
 833                 /* or no space left or right */
 834                 if(left==0 && right==0) {
 835                         if(dir1==UI_TOP || dir1==UI_DOWN) {
 836                                 // align with left size of screen
 837                                 xof= -block->minx+5;
 838                         }
 839                 }
 840
 841                 // apply requested offset in the block
 842                 xof += block->xofs/block->aspect;
 843                 yof += block->yofs/block->aspect;
 844
 845         }
 846
 847         /* apply */
 848
 849         for(bt= block->buttons.first; bt; bt= bt->next) {
 850
 851                 ui_graphics_to_window(block->win, &bt->x1, &bt->y1);
 852                 ui_graphics_to_window(block->win, &bt->x2, &bt->y2);
 853
 854                 bt->x1 += xof;
 855                 bt->x2 += xof;
 856                 bt->y1 += yof;
 857                 bt->y2 += yof;
 858
 859                 bt->aspect= 1.0;
 860                 // ui_check_but recalculates drawstring size in pixels
 861                 ui_check_but(bt);
 862         }
 863
 864         block->minx += xof;
 865         block->miny += yof;
 866         block->maxx += xof;
 867         block->maxy += yof;
 868
 869         /* safety calculus */
 870         if(but) {
 871                 float midx= (block->parentrct.xmin+block->parentrct.xmax)/2.0;
 872                 float midy= (block->parentrct.ymin+block->parentrct.ymax)/2.0;
 873
 874                 /* when you are outside parent button, safety there should be smaller */
 875
 876                 // parent button to left
 877                 if( midx < block->minx ) block->safety.xmin= block->minx-3;
 878                 else block->safety.xmin= block->minx-40;
 879                 // parent button to right
 880                 if( midx > block->maxx ) block->safety.xmax= block->maxx+3;
 881                 else block->safety.xmax= block->maxx+40;
 882
 883                 // parent button on bottom
 884                 if( midy < block->miny ) block->safety.ymin= block->miny-3;
 885                 else block->safety.ymin= block->miny-40;
 886                 // parent button on top
 887                 if( midy > block->maxy ) block->safety.ymax= block->maxy+3;
 888                 else block->safety.ymax= block->maxy+40;
 889
 890                 // exception for switched pulldowns...
 891                 if(dir1 && (dir1 & block->direction)==0) {
 892                         if(dir2==UI_RIGHT) block->safety.xmax= block->maxx+3;
 893                         if(dir2==UI_LEFT) block->safety.xmin= block->minx-3;
 894                 }
 895                 block->direction= dir1;
 896         }
 897         else {
 898                 block->safety.xmin= block->minx-40;
 899                 block->safety.ymin= block->miny-40;
 900                 block->safety.xmax= block->maxx+40;
 901                 block->safety.ymax= block->maxy+40;
 902         }
 903
 904 }
 905
 906
 907 void ui_autofill(uiBlock *block)
 908 {
 909         uiBut *but;
 910         float *maxw, *maxh, startx = 0, starty, height = 0;
 911         float totmaxh;
 912         int rows=0, /*  cols=0, */ i, lasti;
 913
 914         /* first count rows */
 915         but= block->buttons.last;
 916         rows= but->x1+1;
 917
 918         /* calculate max width / height for each row */
 919         maxw= MEM_callocN(sizeof(float)*rows, "maxw");
 920         maxh= MEM_callocN(sizeof(float)*rows, "maxh");
 921         but= block->buttons.first;
 922         while(but) {
 923                 i= but->x1;
 924                 if( maxh[i] < but->y2) maxh[i]= but->y2;
 925                 maxw[i] += but->x2;
 926                 but= but->next;
 927         }
 928
 929         totmaxh= 0.0;
 930         for(i=0; i<rows; i++) totmaxh+= maxh[i];
 931
 932         /* apply widths/heights */
 933         starty= block->maxy;
 934         but= block->buttons.first;
 935         lasti= -1;
 936         while(but) {
 937                 // signal for aligning code
 938                 but->flag |= UI_BUT_ALIGN_DOWN;
 939
 940                 i= but->x1;
 941
 942                 if(i!=lasti) {
 943                         startx= block->minx;
 944                         height= (maxh[i]*(block->maxy-block->miny))/totmaxh;
 945                         starty-= height;
 946                         lasti= i;
 947                 }
 948
 949                 but->y1= starty+but->aspect;
 950                 but->y2= but->y1+height-but->aspect;
 951
 952                 but->x2= (but->x2*(block->maxx-block->minx))/maxw[i];
 953                 but->x1= startx+but->aspect;
 954
 955                 startx+= but->x2;
 956                 but->x2+= but->x1-but->aspect;
 957
 958                 ui_check_but(but);
 959
 960                 but= but->next;
 961         }
 962
 963         uiBlockEndAlign(block);
 964
 965         MEM_freeN(maxw); MEM_freeN(maxh);
 966         block->autofill= 0;
 967 }
 968
 969 /* ************** LINK LINE DRAWING  ************* */
 970
 971 /* link line drawing is not part of buttons or theme.. so we stick with it here */
 972
 973 static void ui_draw_linkline(uiBut *but, uiLinkLine *line)
 974 {
 975         float vec1[2], vec2[2];
 976
 977         if(line->from==NULL || line->to==NULL) return;
 978
 979         vec1[0]= (line->from->x1+line->from->x2)/2.0;
 980         vec1[1]= (line->from->y1+line->from->y2)/2.0;
 981         vec2[0]= (line->to->x1+line->to->x2)/2.0;
 982         vec2[1]= (line->to->y1+line->to->y2)/2.0;
 983
 984         if(line->flag & UI_SELECT) BIF_ThemeColorShade(but->themecol, 80);
 985         else glColor3ub(0,0,0);
 986         fdrawline(vec1[0], vec1[1], vec2[0], vec2[1]);
 987 }
 988
 989 static void ui_draw_links(uiBlock *block)
 990 {
 991         uiBut *but;
 992         uiLinkLine *line;
 993
 994         but= block->buttons.first;
 995         while(but) {
 996                 if(but->type==LINK && but->link) {
 997                         line= but->link->lines.first;
 998                         while(line) {
 999                                 ui_draw_linkline(but, line);
1000                                 line= line->next;
1001                         }
1002                 }
1003                 but= but->next;
1004         }
1005 }
1006
1007 /* ************** BLOCK DRAWING FUNCTION ************* */
1008
1009
1010 void uiDrawBlock(uiBlock *block)
1011 {
1012         uiBut *but;
1013         short testmouse=0, mouse[2];
1014
1015         /* we set this only once */
1016         glBlendFunc( GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA );
1017
1018         /* handle pending stuff */
1019         if(block->autofill) ui_autofill(block);
1020         if(block->minx==0.0 && block->maxx==0.0) uiBoundsBlock(block, 0);
1021         if(block->flag & UI_BUT_ALIGN) uiBlockEndAlign(block);
1022
1023         /* we set active flag on a redraw again */
1024         if((block->flag & UI_BLOCK_LOOP)==0) {
1025                 testmouse= 1;
1026                 Mat4CpyMat4(UIwinmat, block->winmat);
1027         }
1028
1029         uiPanelPush(block); // panel matrix
1030
1031         if(block->flag & UI_BLOCK_LOOP) {
1032                 uiDrawMenuBox(block->minx, block->miny, block->maxx, block->maxy, block->flag);
1033         }
1034         else {
1035                 if(block->panel) ui_draw_panel(block);
1036         }
1037
1038         if(block->drawextra) block->drawextra(curarea, block);
1039
1040         if(testmouse)   /* do it after panel push, otherwise coords are wrong */
1041                 uiGetMouse(block->win, mouse);
1042
1043         for (but= block->buttons.first; but; but= but->next) {
1044
1045                 if(testmouse && uibut_contains_pt(but, mouse))
1046                         but->flag |= UI_ACTIVE;
1047
1048                 ui_draw_but(but);
1049         }
1050
1051         ui_draw_links(block);
1052
1053         uiPanelPop(block); // matrix restored
1054 }
1055
1056 /* ************* MENUBUTS *********** */
1057
1058 typedef struct {
1059         char *str;
1060         int retval;
1061         int icon;
1062 } MenuEntry;
1063
1064 typedef struct {
1065         char *instr;
1066         char *title;
1067         int titleicon;
1068
1069         MenuEntry *items;
1070         int nitems, itemssize;
1071 } MenuData;
1072
1073 static MenuData *menudata_new(char *instr) {
1074         MenuData *md= MEM_mallocN(sizeof(*md), "MenuData");
1075
1076         md->instr= instr;
1077         md->title= NULL;
1078         md->titleicon= 0;
1079         md->items= NULL;
1080         md->nitems= md->itemssize= 0;
1081
1082         return md;
1083 }
1084
1085 static void menudata_set_title(MenuData *md, char *title, int titleicon) {
1086         if (!md->title)
1087                 md->title= title;
1088         if (!md->titleicon)
1089                 md->titleicon= titleicon;
1090 }
1091
1092 static void menudata_add_item(MenuData *md, char *str, int retval, int icon) {
1093         if (md->nitems==md->itemssize) {
1094                 int nsize= md->itemssize?(md->itemssize<<1):1;
1095                 MenuEntry *oitems= md->items;
1096
1097                 md->items= MEM_mallocN(nsize*sizeof(*md->items), "md->items");
1098                 if (oitems) {
1099                         memcpy(md->items, oitems, md->nitems*sizeof(*md->items));
1100                         MEM_freeN(oitems);
1101                 }
1102
1103                 md->itemssize= nsize;
1104         }
1105
1106         md->items[md->nitems].str= str;
1107         md->items[md->nitems].retval= retval;
1108         md->items[md->nitems].icon= icon;
1109         md->nitems++;
1110 }
1111
1112 static void menudata_free(MenuData *md) {
1113         MEM_freeN(md->instr);
1114         if (md->items)
1115                 MEM_freeN(md->items);
1116         MEM_freeN(md);
1117 }
1118
1119         /**
1120          * Parse menu description strings, string is of the
1121          * form "[sss%t|]{(sss[%xNN]|), (%l|)}", ssss%t indicates the
1122          * menu title, sss or sss%xNN indicates an option,
1123          * if %xNN is given then NN is the return value if
1124          * that option is selected otherwise the return value
1125          * is the index of the option (starting with 1). %l
1126          * indicates a seperator.
1127          *
1128          * @param str String to be parsed.
1129          * @retval new menudata structure, free with menudata_free()
1130          */
1131 static MenuData *decompose_menu_string(char *str)
1132 {
1133         char *instr= BLI_strdup(str);
1134         MenuData *md= menudata_new(instr);
1135         char *nitem= NULL, *s= instr;
1136         int nicon=0, nretval= 1, nitem_is_title= 0;
1137
1138         while (1) {
1139                 char c= *s;
1140
1141                 if (c=='%') {
1142                         if (s[1]=='x') {
1143                                 nretval= atoi(s+2);
1144
1145                                 *s= '\0';
1146                                 s++;
1147                         } else if (s[1]=='t') {
1148                                 nitem_is_title= 1;
1149
1150                                 *s= '\0';
1151                                 s++;
1152                         } else if (s[1]=='l') {
1153                                 nitem= "%l";
1154                                 s++;
1155                         } else if (s[1]=='i') {
1156                                 nicon= atoi(s+2);
1157
1158                                 *s= '\0';
1159                                 s++;
1160                         }
1161                 } else if (c=='|' || c=='\0') {
1162                         if (nitem) {
1163                                 *s= '\0';
1164
1165                                 if (nitem_is_title) {
1166                                         menudata_set_title(md, nitem, nicon);
1167                                         nitem_is_title= 0;
1168                                 } else {
1169                                         /* prevent separator to get a value */
1170                                         if(nitem[0]=='%' && nitem[1]=='l')
1171                                                 menudata_add_item(md, nitem, -1, nicon);
1172                                         else
1173                                                 menudata_add_item(md, nitem, nretval, nicon);
1174                                         nretval= md->nitems+1;
1175                                 }
1176
1177                                 nitem= NULL;
1178                                 nicon= 0;
1179                         }
1180
1181                         if (c=='\0')
1182                                 break;
1183                 } else if (!nitem)
1184                         nitem= s;
1185
1186                 s++;
1187         }
1188
1189         return md;
1190 }
1191
1192 static void ui_set_name_menu(uiBut *but, int value)
1193 {
1194         MenuData *md;
1195         int i;
1196
1197         md= decompose_menu_string(but->str);
1198         for (i=0; i<md->nitems; i++)
1199                 if (md->items[i].retval==value)
1200                         strcpy(but->drawstr, md->items[i].str);
1201
1202         menudata_free(md);
1203 }
1204
1205 static void ui_warp_pointer(short x, short y)
1206 {
1207         /* OSX has very poor mousewarp support, it sends events;
1208            this causes a menu being pressed immediately ... */
1209         #ifndef __APPLE__
1210         warp_pointer(x, y);
1211         #endif
1212 }
1213
1214 #define TBOXH 20
1215 static int ui_do_but_MENU(uiBut *but)
1216 {
1217         uiBlock *block;
1218         uiBut *bt;
1219         ListBase listb={NULL, NULL}, lb;
1220         double fvalue;
1221         int width, height=0, a, xmax, starty;
1222         short startx;
1223         int columns=1, rows=0, boxh, event;
1224         short  x1, y1, active= -1;
1225         short mval[2];
1226         MenuData *md;
1227
1228         but->flag |= UI_SELECT;
1229         ui_draw_but(but);
1230         ui_block_flush_back(but->block);        // flush because this button creates own blocks loop
1231
1232         block= uiNewBlock(&listb, "menu", UI_EMBOSSP, UI_HELV, but->win);
1233         block->flag= UI_BLOCK_LOOP|UI_BLOCK_REDRAW|UI_BLOCK_NUMSELECT;
1234         block->themecol= TH_MENU_ITEM;
1235
1236         md= decompose_menu_string(but->str);
1237
1238         /* columns and row calculation */
1239         columns= (md->nitems+20)/20;
1240         if (columns<1) columns= 1;
1241
1242         if(columns>8) columns= (md->nitems+25)/25;
1243
1244         rows= (int) md->nitems/columns;
1245         if (rows<1) rows= 1;
1246
1247         while (rows*columns<md->nitems) rows++;
1248
1249         /* prevent scaling up of pupmenu */
1250         if (but->aspect < 1.0f) but->aspect = 1.0f;
1251
1252         /* size and location */
1253         if(md->title)
1254                 width= 1.5*but->aspect*strlen(md->title)+BIF_GetStringWidth(block->curfont, md->title, (U.transopts & USER_TR_MENUS));
1255         else
1256                 width= 0;
1257
1258         for(a=0; a<md->nitems; a++) {
1259                 xmax= but->aspect*BIF_GetStringWidth(block->curfont, md->items[a].str, (U.transopts & USER_TR_MENUS));
1260                 if ( md->items[a].icon) xmax += 20*but->aspect;
1261                 if(xmax>width) width= xmax;
1262         }
1263
1264         width+= 10;
1265         if (width < (but->x2 - but->x1)) width = (but->x2 - but->x1);
1266         if (width<50) width=50;
1267
1268         boxh= TBOXH;
1269
1270         height= rows*boxh;
1271         if (md->title) height+= boxh;
1272
1273         getmouseco_sc(mval);
1274
1275         /* find active item */
1276         fvalue= ui_get_but_val(but);
1277         for(active=0; active<md->nitems; active++) {
1278                 if( md->items[active].retval== (int)fvalue ) break;
1279         }
1280         /* no active item? */
1281         if(active==md->nitems) {
1282                 if(md->title) active= -1;
1283                 else active= 0;
1284         }
1285
1286         /* for now disabled... works confusing because you think it's a title or so.... */
1287         active= -1;
1288
1289         /* here we go! */
1290         startx= but->x1;
1291         starty= but->y1;
1292
1293         if(md->title) {
1294                 uiBut *bt;
1295                 uiSetCurFont(block, block->font+1);
1296                 if (md->titleicon) {
1297                         uiDefIconTextBut(block, LABEL, 0, md->titleicon, md->title, startx, (short)(starty+rows*boxh), (short)width, (short)boxh, NULL, 0.0, 0.0, 0, 0, "");
1298                 } else {
1299                         bt= uiDefBut(block, LABEL, 0, md->title, startx, (short)(starty+rows*boxh), (short)width, (short)boxh, NULL, 0.0, 0.0, 0, 0, "");
1300                         bt->flag= UI_TEXT_LEFT;
1301                 }
1302                 uiSetCurFont(block, block->font);
1303
1304         }
1305
1306         for(a=0; a<md->nitems; a++) {
1307
1308                 x1= but->x1 + width*((int)(md->nitems-a-1)/rows);
1309                 y1= but->y1 - boxh*(rows - ((md->nitems - a - 1)%rows)) + (rows*boxh);
1310
1311                 if (strcmp(md->items[md->nitems-a-1].str, "%l")==0) {
1312                         uiDefBut(block, SEPR, B_NOP, "", x1, y1,(short)(width-(rows>1)), (short)(boxh-1), NULL, 0.0, 0.0, 0, 0, "");
1313                 }
1314                 else if(md->items[md->nitems-a-1].icon) {
1315                         uiBut *bt= uiDefIconTextBut(block, BUTM|but->pointype, but->retval, md->items[md->nitems-a-1].icon ,md->items[md->nitems-a-1].str, x1, y1,(short)(width-(rows>1)), (short)(boxh-1), but->poin, (float) md->items[md->nitems-a-1].retval, 0.0, 0, 0, "");
1316                         if(active==a) bt->flag |= UI_ACTIVE;
1317                 }
1318                 else {
1319                         uiBut *bt= uiDefBut(block, BUTM|but->pointype, but->retval, md->items[md->nitems-a-1].str, x1, y1,(short)(width-(rows>1)), (short)(boxh-1), but->poin, (float) md->items[md->nitems-a-1].retval, 0.0, 0, 0, "");
1320                         if(active==a) bt->flag |= UI_ACTIVE;
1321                 }
1322         }
1323
1324         /* the code up here has flipped locations, because of change of preferred order */
1325         /* thats why we have to switch list order too, to make arrowkeys work */
1326
1327         lb.first= lb.last= NULL;
1328         bt= block->buttons.first;
1329         while(bt) {
1330                 uiBut *next= bt->next;
1331                 BLI_remlink(&block->buttons, bt);
1332                 BLI_addhead(&lb, bt);
1333                 bt= next;
1334         }
1335         block->buttons= lb;
1336
1337         /* and lets go */
1338         block->direction= UI_TOP;
1339         ui_positionblock(block, but);
1340
1341         /* blocks can come (and get scaled) from a normal window, now we go to screenspace */
1342         block->win= G.curscreen->mainwin;
1343         for(bt= block->buttons.first; bt; bt= bt->next) bt->win= block->win;
1344         bwin_getsinglematrix(block->win, block->winmat);
1345
1346         event= uiDoBlocks(&listb, 0, 1);
1347
1348         menudata_free(md);
1349
1350         but->flag &= ~UI_SELECT;
1351         ui_check_but(but);
1352         /* no draw of button now, for floating panels the matrix now is invalid...
1353            the button still is active, and will be redrawn in main loop to de-activate it */
1354         /* but, if no hilites, we send redraw to queue */
1355         if(but->flag & UI_NO_HILITE)
1356                 addqueue(but->block->winq, REDRAW, 1);
1357
1358         uibut_do_func(but);
1359
1360         /* return no existing event, because the menu sends events instead */
1361         return -1;
1362 }
1363
1364 /* ********************** NEXT/PREV for arrowkeys etc ************** */
1365
1366 static uiBut *ui_but_prev(uiBut *but)
1367 {
1368         while(but->prev) {
1369                 but= but->prev;
1370                 if(but->type!=LABEL && but->type!=SEPR && but->type!=ROUNDBOX) return but;
1371         }
1372         return NULL;
1373 }
1374
1375 static uiBut *ui_but_next(uiBut *but)
1376 {
1377         while(but->next) {
1378                 but= but->next;
1379                 if(but->type!=LABEL && but->type!=SEPR && but->type!=ROUNDBOX) return but;
1380         }
1381         return NULL;
1382 }
1383
1384 static uiBut *ui_but_first(uiBlock *block)
1385 {
1386         uiBut *but;
1387
1388         but= block->buttons.first;
1389         while(but) {
1390                 if(but->type!=LABEL && but->type!=SEPR && but->type!=ROUNDBOX) return but;
1391                 but= but->next;
1392         }
1393         return NULL;
1394 }
1395
1396 static uiBut *ui_but_last(uiBlock *block)
1397 {
1398         uiBut *but;
1399
1400         but= block->buttons.last;
1401         while(but) {
1402                 if(but->type!=LABEL && but->type!=SEPR && but->type!=ROUNDBOX) return but;
1403                 but= but->prev;
1404         }
1405         return NULL;
1406 }
1407
1408
1409 /* ************* IN-BUTTON TEXT SELECTION/EDITING ************* */
1410
1411 static short ui_delete_selection_edittext(uiBut *but)
1412 {
1413         int x;
1414         short deletedwidth=0;
1415         char *str;
1416
1417         str= (char *)but->poin;
1418
1419         deletedwidth = (but->selend - but->selsta);
1420
1421         for(x=0; x< strlen(str); x++) {
1422                 if (but->selend + x <= strlen(str) ) {
1423                         str[but->selsta + x]= str[but->selend + x];
1424                 } else {
1425                         str[but->selsta + x]= '\0';
1426                         break;
1427                 }
1428         }
1429         but->pos = but->selend = but->selsta;
1430
1431         return deletedwidth;
1432 }
1433
1434 static void ui_set_cursor_pos_edittext(uiBut *but, short sx)
1435 {
1436         char backstr[UI_MAX_DRAW_STR];
1437
1438         BLI_strncpy(backstr, but->drawstr, UI_MAX_DRAW_STR);
1439         but->pos= strlen(backstr)-but->ofs;
1440
1441         while((but->aspect*BIF_GetStringWidth(but->font, backstr+but->ofs, 0) + but->x1) > sx) {
1442                 if (but->pos <= 0) break;
1443                 but->pos--;
1444                 backstr[but->pos+but->ofs] = 0;
1445         }
1446
1447         but->pos -= strlen(but->str);
1448         but->pos += but->ofs;
1449         if(but->pos<0) but->pos= 0;
1450 }
1451
1452
1453 /* ************* EVENTS ************* */
1454
1455 void uiGetMouse(int win, short *adr)
1456 {
1457         int x, y;
1458         float xwin, ywin;
1459
1460         getmouseco_sc(adr);
1461         if (win == G.curscreen->mainwin) return;
1462
1463         bwin_getsuborigin(win, &x, &y);
1464
1465         adr[0]-= x;
1466         adr[1]-= y;
1467
1468         xwin= adr[0];
1469         ywin= adr[1];
1470
1471         ui_window_to_graphics(win, &xwin, &ywin);
1472
1473         adr[0]= (short)(xwin+0.5);
1474         adr[1]= (short)(ywin+0.5);
1475 }
1476
1477 static void ui_is_but_sel(uiBut *but)
1478 {
1479         double value;
1480         int lvalue;
1481         short push=0, true=1;
1482
1483         value= ui_get_but_val(but);
1484
1485         if( but->type==TOGN  || but->type==ICONTOGN) true= 0;
1486
1487         if( but->bit ) {
1488                 lvalue= (int)value;
1489                 if( BTST(lvalue, (but->bitnr)) ) push= true;
1490                 else push= !true;
1491         }
1492         else {
1493                 switch(but->type) {
1494                 case BUT:
1495                         push= 0;
1496                         break;
1497                 case KEYEVT:
1498                         if (value==-1) push= 1;
1499                         break;
1500                 case TOG:
1501                 case TOGR:
1502                 case TOG3:
1503                 case BUT_TOGDUAL:
1504                 case ICONTOG:
1505                         if(value!=but->min) push= 1;
1506                         break;
1507                 case ICONTOGN:
1508                 case TOGN:
1509                         if(value==0.0) push= 1;
1510                         break;
1511                 case ROW:
1512                         if(value == but->max) push= 1;
1513                         break;
1514                 case COL:
1515                         push= 1;
1516                         break;
1517                 default:
1518                         push= 2;
1519                         break;
1520                 }
1521         }
1522
1523         if(push==2);
1524         else if(push==1) but->flag |= UI_SELECT;
1525         else but->flag &= ~UI_SELECT;
1526 }
1527
1528 static int ui_do_but_BUT(uiBut *but)
1529 {
1530         int activated;
1531
1532         do {
1533                 int oflag= but->flag;
1534                 short mval[2];
1535
1536                 uiGetMouse(mywinget(), mval);
1537
1538                 if (uibut_contains_pt(but, mval))
1539                         but->flag |= UI_SELECT;
1540                 else
1541                         but->flag &= ~UI_SELECT;
1542
1543                 if (but->flag != oflag) {
1544                         ui_draw_but(but);
1545                         ui_block_flush_back(but->block);
1546                 }
1547
1548                 PIL_sleep_ms(10);
1549         } while (get_mbut() & L_MOUSE);
1550
1551         activated= (but->flag & UI_SELECT);
1552
1553         if(activated) {
1554                 UIafterfunc_but= but->func;
1555                 UIafterfunc_arg1= but->func_arg1;
1556                 UIafterfunc_arg2= but->func_arg2;
1557                 /* no more uibut_do_func(but); this button calls fileselecting windows */
1558         }
1559
1560         but->flag &= ~UI_SELECT;
1561         ui_draw_but(but);
1562
1563         return activated?but->retval:0;
1564 }
1565
1566 static int ui_do_but_KEYEVT(uiBut *but)
1567 {
1568         unsigned short event= 0;
1569         short val;
1570
1571                 /* flag for ui_check_but */
1572         ui_set_but_val(but, -1);
1573         ui_check_but(but);
1574         ui_draw_but(but);
1575         ui_block_flush_back(but->block);
1576
1577         do {
1578                 event= extern_qread(&val);
1579         } while (!event || !val || ELEM(event, MOUSEX, MOUSEY));
1580
1581         if (!key_event_to_string(event)[0]) event= 0;
1582
1583         ui_set_but_val(but, (double) event);
1584         ui_check_but(but);
1585         ui_draw_but(but);
1586
1587         return (event!=0);
1588 }
1589
1590 static int ui_do_but_TOG(uiBlock *block, uiBut *but, int qual)
1591 {
1592         uiBut *bt;
1593         double value;
1594         int w, lvalue, push;
1595
1596         /* local hack... */
1597         if(but->type==BUT_TOGDUAL && qual==LR_CTRLKEY) {
1598                 if(but->pointype==SHO)
1599                         but->poin += 2;
1600                 else if(but->pointype==INT)
1601                         but->poin += 4;
1602         }
1603
1604         value= ui_get_but_val(but);
1605         lvalue= (int)value;
1606
1607         if(but->bit) {
1608                 w= BTST(lvalue, but->bitnr);
1609                 if(w) lvalue = BCLR(lvalue, but->bitnr);
1610                 else lvalue = BSET(lvalue, but->bitnr);
1611
1612                 if(but->type==TOGR) {
1613                         if( (get_qual() & LR_SHIFTKEY)==0 ) {
1614                                 lvalue= 1<<(but->bitnr);
1615
1616                                 ui_set_but_val(but, (double)lvalue);
1617
1618                                 bt= block->buttons.first;
1619                                 while(bt) {
1620                                         if( bt!=but && bt->poin==but->poin ) {
1621                                                 ui_is_but_sel(bt);
1622                                                 ui_draw_but(bt);
1623                                         }
1624                                         bt= bt->next;
1625                                 }
1626                         }
1627                         else {
1628                                 if(lvalue==0) lvalue= 1<<(but->bitnr);
1629                         }
1630                 }
1631
1632                 ui_set_but_val(but, (double)lvalue);
1633                 if(but->type==ICONTOG || but->type==ICONTOGN) ui_check_but(but);
1634                 // no frontbuffer draw for this one
1635                 if(but->type==BUT_TOGDUAL);
1636                 else if((but->flag & UI_NO_HILITE)==0) ui_draw_but(but);
1637         }
1638         else {
1639
1640                 if(value==0.0) push= 1;
1641                 else push= 0;
1642
1643                 if(but->type==TOGN || but->type==ICONTOGN) push= !push;
1644                 ui_set_but_val(but, (double)push);
1645                 if(but->type==ICONTOG || but->type==ICONTOGN) ui_check_but(but);
1646                 // no frontbuffer draw for this one
1647                 if((but->flag & UI_NO_HILITE)==0) ui_draw_but(but);
1648         }
1649
1650         /* end local hack... */
1651         if(but->type==BUT_TOGDUAL && qual==LR_CTRLKEY) {
1652                 if(but->pointype==SHO)
1653                         but->poin -= 2;
1654                 else if(but->pointype==INT)
1655                         but->poin -= 4;
1656         }
1657
1658         /* no while loop...this button is used for viewmove */
1659
1660         uibut_do_func(but);
1661
1662         return but->retval;
1663 }
1664
1665 static int ui_do_but_ROW(uiBlock *block, uiBut *but)
1666 {
1667         uiBut *bt;
1668
1669         ui_set_but_val(but, but->max);
1670         ui_draw_but(but);
1671
1672         bt= block->buttons.first;
1673         while(bt) {
1674                 if( bt!=but && bt->type==ROW ) {
1675                         if(bt->min==but->min) {
1676                                 ui_is_but_sel(bt);
1677                                 ui_draw_but(bt);
1678                         }
1679                 }
1680                 bt= bt->next;
1681         }
1682         return but->retval;
1683 }
1684
1685 /* return 1 if char ch is special character otherwise
1686  * it returns 0 */
1687 static short test_special_char(char ch)
1688 {
1689         switch(ch) {
1690                 case '\\':
1691                 case '/':
1692                 case '~':
1693                 case '!':
1694                 case '@':
1695                 case '#':
1696                 case '$':
1697                 case '%':
1698                 case '^':
1699                 case '&':
1700                 case '*':
1701                 case '(':
1702                 case ')':
1703                 case '+':
1704                 case '=':
1705                 case '{':
1706                 case '}':
1707                 case '[':
1708                 case ']':
1709                 case ':':
1710                 case ';':
1711                 case '\'':
1712                 case '\"':
1713                 case '<':
1714                 case '>':
1715                 case ',':
1716                 case '.':
1717                 case '?':
1718                 case '_':
1719                 case '-':
1720                 case ' ':
1721                         return 1;
1722                         break;
1723                 default:
1724                         break;
1725         }
1726         return 0;
1727 }
1728
1729 static int ui_do_but_TEX(uiBut *but)
1730 {
1731         unsigned short dev;
1732         short x, y, mval[2], len=0, dodraw, selextend=0;
1733         char *str, backstr[UI_MAX_DRAW_STR];
1734         short capturing, sx, sy, prevx;
1735
1736         str= (char *)but->poin;
1737
1738         but->flag |= UI_SELECT;
1739
1740         uiGetMouse(mywinget(), mval);
1741
1742         /* set cursor pos to the end of the text */
1743         but->pos = strlen(str);
1744         but->selsta = 0;
1745         but->selend = strlen(but->drawstr) - strlen(but->str);
1746
1747         /* backup */
1748         BLI_strncpy(backstr, but->poin, UI_MAX_DRAW_STR);
1749
1750         ui_draw_but(but);
1751         ui_block_flush_back(but->block);
1752
1753         while (get_mbut() & L_MOUSE) BIF_wait_for_statechange();
1754         len= strlen(str);
1755
1756         but->min= 0.0;
1757
1758         capturing = TRUE;
1759         while(capturing) {
1760                 char ascii;
1761                 short val;
1762
1763                 dodraw= 0;
1764                 dev = extern_qread_ext(&val, &ascii);
1765
1766                 if(dev==INPUTCHANGE) break;
1767                 else if(get_mbut() & R_MOUSE) break;
1768                 else if(get_mbut() & L_MOUSE) {
1769                         uiGetMouse(mywinget(), mval);
1770                         sx = mval[0]; sy = mval[1];
1771
1772                         if ((but->y1 <= sy) && (sy <= but->y2) && (but->x1 <= sx) && (sx <= but->x2)) {
1773                                 ui_set_cursor_pos_edittext(but, mval[0]);
1774
1775                                 but->selsta = but->selend = but->pos;
1776
1777                                 /* drag text select */
1778                                 prevx= mval[0];
1779                                 while (get_mbut() & L_MOUSE) {
1780                                         uiGetMouse(mywinget(), mval);
1781
1782                                         if(prevx!=mval[0]) {
1783
1784                                                 if (mval[0] > sx) selextend = EXTEND_RIGHT;
1785                                                 else if (mval[0] < sx) selextend = EXTEND_LEFT;
1786
1787                                                 ui_set_cursor_pos_edittext(but, mval[0]);
1788
1789                                                 if (selextend == EXTEND_RIGHT) but->selend = but->pos;
1790                                                 if (selextend == EXTEND_LEFT) but->selsta = but->pos;
1791
1792                                                 ui_check_but(but);
1793                                                 ui_draw_but(but);
1794                                                 ui_block_flush_back(but->block);
1795                                         }
1796                                         PIL_sleep_ms(10);
1797                                 }
1798                                 dodraw= 1;
1799                         } else break;
1800                 }
1801                 else if(dev==ESCKEY) break;
1802                 else if(dev==MOUSEX) val= 0;
1803                 else if(dev==MOUSEY) val= 0;
1804
1805                 /* cut, copy, paste selected text */
1806                 /* mainqread discards ascii values < 32, so can't do this cleanly within the if(ascii) block*/
1807                 else if ( (val) &&
1808                          ((G.qual & LR_COMMANDKEY) || (G.qual & LR_CTRLKEY)) &&
1809                          ((dev==XKEY) || (dev==CKEY) || (dev==VKEY)) ) {
1810
1811                         char buf[UI_MAX_DRAW_STR]={0};
1812
1813                         /* paste */
1814                         if (dev==VKEY) {
1815
1816                                 /* extract the first line from the clipboard */
1817                                 char *p = getClipboard(0);
1818                                 if(p) {
1819                                         int i = 0;
1820                                         while (*p && *p!='\r' && *p!='\n' && i<UI_MAX_DRAW_STR) {
1821                                                 buf[i++]=*p;
1822                                                 p++;
1823                                         }
1824                                         buf[i]= 0;
1825
1826                                         /* paste over the current selection */
1827                                         if ((but->selend - but->selsta) > 0) {
1828                                                 len -= ui_delete_selection_edittext(but);
1829                                         }
1830
1831                                         for (y=0; y<strlen(buf); y++)
1832                                         {
1833                                                 /* add contents of buffer */
1834                                                 if(len < but->max) {
1835                                                         for(x= but->max; x>but->pos; x--)
1836                                                                 str[x]= str[x-1];
1837                                                         str[but->pos]= buf[y];
1838                                                         but->pos++;
1839                                                         len++;
1840                                                         str[len]= '\0';
1841                                                 }
1842                                         }
1843                                         if (strlen(buf) > 0) dodraw= 1;
1844                                 }
1845                         }
1846                         /* cut & copy */
1847                         else if ( (dev==XKEY) || (dev==CKEY) ) {
1848                                 /* copy the contents to the clipboard */
1849                                 for(x= but->selsta; x <= but->selend; x++) {
1850                                         if (x==but->selend)
1851                                                 buf[x] = '\0';
1852                                         else
1853                                                 buf[(x - but->selsta)] = str[x];
1854                                 }
1855                                 putClipboard(buf, 0);
1856
1857                                 /* for cut only, delete the selection afterwards */
1858                                 if (dev==XKEY) {
1859                                         if ((but->selend - but->selsta) > 0) {
1860                                                 len -= ui_delete_selection_edittext(but);
1861
1862                                                 if (len < 0) len = 0;
1863                                                 dodraw=1;
1864                                         }
1865                                 }
1866                         }
1867                 }
1868                 else if((ascii)){
1869
1870                         if(len-(but->selend - but->selsta)+1 <= but->max) {
1871
1872                                 /* type over the current selection */
1873                                 if ((but->selend - but->selsta) > 0) {
1874                                         len -= ui_delete_selection_edittext(but);
1875                                 }
1876
1877                                 if(len < but->max) {
1878                                         for(x= but->max; x>but->pos; x--)
1879                                                 str[x]= str[x-1];
1880                                         str[but->pos]= ascii;
1881                                         but->pos++;
1882                                         len++;
1883                                         str[len]= '\0';
1884                                         dodraw= 1;
1885                                 }
1886                         }
1887                 }
1888                 else if(val) {
1889
1890                         switch (dev) {
1891
1892                         case RIGHTARROWKEY:
1893                                 /* if there's a selection */
1894                                 if ((but->selend - but->selsta) > 0) {
1895                                         /* extend the selection based on the first direction taken */
1896                                         if(G.qual & LR_SHIFTKEY) {
1897                                                 if (!selextend) {
1898                                                         selextend = EXTEND_RIGHT;
1899                                                 }
1900                                                 if (selextend == EXTEND_RIGHT) {
1901                                                         but->selend++;
1902                                                         if (but->selend > len) but->selend = len;
1903                                                 } else if (selextend == EXTEND_LEFT) {
1904                                                         but->selsta++;
1905                                                         /* if the selection start has gone past the end,
1906                                                         * flip them so they're in sync again */
1907                                                         if (but->selsta == but->selend) {
1908                                                                 but->pos = but->selsta;
1909                                                                 selextend = EXTEND_RIGHT;
1910                                                         }
1911                                                 }
1912                                         } else {
1913                                                 but->selsta = but->pos = but->selend;
1914                                                 selextend = 0;
1915                                         }
1916                                 } else {
1917                                         if(G.qual & LR_SHIFTKEY) {
1918                                                 /* make a selection, starting from the cursor position */
1919                                                 but->selsta = but->pos;
1920
1921                                                 but->pos++;
1922                                                 if(but->pos>strlen(str)) but->pos= strlen(str);
1923
1924                                                 but->selend = but->pos;
1925                                         } else if(G.qual & LR_CTRLKEY) {
1926                                                 /* jump betweenn special characters (/,\,_,-, etc.),
1927                                                  * look at function test_special_char() for complete
1928                                                  * list of special character, ctr -> */
1929                                                 while(but->pos < len) {
1930                                                         but->pos++;
1931                                                         if(test_special_char(str[but->pos])) break;
1932                                                 }
1933                                         } else {
1934                                                 but->pos++;
1935                                                 if(but->pos>strlen(str)) but->pos= strlen(str);
1936                                         }
1937                                 }
1938                                 dodraw= 1;
1939                                 break;
1940
1941                         case LEFTARROWKEY:
1942                                 /* if there's a selection */
1943                                 if ((but->selend - but->selsta) > 0) {
1944                                         /* extend the selection based on the first direction taken */
1945                                         if(G.qual & LR_SHIFTKEY) {
1946                                                 if (!selextend) {
1947                                                         selextend = EXTEND_LEFT;
1948                                                 }
1949                                                 if (selextend == EXTEND_LEFT) {
1950                                                         but->selsta--;
1951                                                         if (but->selsta < 0) but->selsta = 0;
1952                                                 } else if (selextend == EXTEND_RIGHT) {
1953                                                         but->selend--;
1954                                                         /* if the selection start has gone past the end,
1955                                                         * flip them so they're in sync again */
1956                                                         if (but->selsta == but->selend) {
1957                                                                 but->pos = but->selsta;
1958                                                                 selextend = EXTEND_LEFT;
1959                                                         }
1960                                                 }
1961                                         } else {
1962                                                 but->pos = but->selend = but->selsta;
1963                                                 selextend = 0;
1964                                         }
1965                                 } else {
1966                                         if(G.qual & LR_SHIFTKEY) {
1967                                                 /* make a selection, starting from the cursor position */
1968                                                 but->selend = but->pos;
1969
1970                                                 but->pos--;
1971                                                 if(but->pos<0) but->pos= 0;
1972
1973                                                 but->selsta = but->pos;
1974                                         } else if(G.qual & LR_CTRLKEY) {
1975                                                 /* jump betweenn special characters (/,\,_,-, etc.),
1976                                                  * look at function test_special_char() for complete
1977                                                  * list of special character, ctr -> */
1978                                                 while(but->pos > 0){
1979                                                         but->pos--;
1980                                                         if(test_special_char(str[but->pos])) break;
1981                                                 }
1982                                         } else {
1983                                                 if(but->pos>0) but->pos--;
1984                                         }
1985                                 }
1986                                 dodraw= 1;
1987                                 break;
1988
1989                         case DOWNARROWKEY:
1990                         case ENDKEY:
1991                                 if(G.qual & LR_SHIFTKEY) {
1992                                         but->selsta = but->pos;
1993                                         but->selend = strlen(str);
1994                                         selextend = EXTEND_RIGHT;
1995                                 } else {
1996                                         but->selsta = but->selend = but->pos= strlen(str);
1997                                 }
1998                                 dodraw= 1;
1999                                 break;
2000
2001                         case UPARROWKEY:
2002                         case HOMEKEY:
2003                                 if(G.qual & LR_SHIFTKEY) {
2004                                         but->selend = but->pos;
2005                                         but->selsta = 0;
2006                                         selextend = EXTEND_LEFT;
2007                                 } else {
2008                                         but->selsta = but->selend = but->pos= 0;
2009                                 }
2010                                 dodraw= 1;
2011                                 break;
2012
2013                         case PADENTER:
2014                         case RETKEY:
2015                                 capturing = FALSE;
2016                                 break;
2017
2018                         case DELKEY:
2019                                 if ((but->selend - but->selsta) > 0) {
2020                                         len -= ui_delete_selection_edittext(but);
2021
2022                                         if (len < 0) len = 0;
2023                                         dodraw=1;
2024                                 }
2025                                 else if(but->pos>=0 && but->pos<strlen(str)) {
2026                                         for(x=but->pos; x<=strlen(str); x++)
2027                                                 str[x]= str[x+1];
2028                                         str[--len]='\0';
2029                                         dodraw= 1;
2030                                 }
2031                                 break;
2032
2033                         case BACKSPACEKEY:
2034                                 if(len!=0) {
2035                                         if ((but->selend - but->selsta) > 0) {
2036                                                 len -= ui_delete_selection_edittext(but);
2037
2038                                                 if (len < 0) len = 0;
2039                                                 dodraw=1;
2040                                         }
2041                                         else if(get_qual() & LR_SHIFTKEY) {
2042                                                 str[0]= 0;
2043                                                 but->pos= 0;
2044                                                 len= 0;
2045                                                 dodraw= 1;
2046                                         }
2047                                         else if(but->pos>0) {
2048                                                 for(x=but->pos; x<=strlen(str); x++)
2049                                                         str[x-1]= str[x];
2050                                                 but->pos--;
2051                                                 str[--len]='\0';
2052                                                 dodraw= 1;
2053                                         }
2054                                 }
2055                                 break;
2056
2057                         case TABKEY:
2058                                 if(but->autocomplete_func) {
2059                                         but->autocomplete_func(str, but->autofunc_arg);
2060                                         but->pos= strlen(str);
2061                                         len= but->pos;
2062                                         dodraw= 1;
2063                                 }
2064                                 else capturing= FALSE;
2065
2066                                 break;
2067                         }
2068                 }
2069
2070
2071                 if(dodraw) {
2072                         ui_check_but(but);
2073                         ui_draw_but(but);
2074                         ui_block_flush_back(but->block);
2075                 }
2076         }
2077
2078         if(dev==ESCKEY) strcpy(but->poin, backstr);
2079         but->pos= -1;
2080         but->flag &= ~UI_SELECT;
2081
2082         if(dev!=ESCKEY) {
2083                 /* give butfunc the original text too */
2084                 /* feature used for bone renaming, channels, etc */
2085                 if(but->func_arg2==NULL) but->func_arg2= backstr;
2086                 uibut_do_func(but);
2087         }
2088
2089         ui_check_but(but);
2090         ui_draw_but(but);
2091
2092         if(dev==TABKEY) addqueue(but->win, G.qual?BUT_PREV:BUT_NEXT, 1);
2093
2094         if(dev!=ESCKEY) return but->retval;
2095         else return B_NOP;      // prevent event to be passed on
2096 }
2097
2098
2099 static int ui_act_as_text_but(uiBut *but)
2100 {
2101         void *but_func;
2102         double value;
2103         float min, max;
2104         int temp, retval, textleft;
2105         char str[UI_MAX_DRAW_STR], *point;
2106
2107         /* this function is abused for tab-cycling */
2108         if(but->type==TEX)
2109                 return ui_do_but_TEX(but);
2110
2111         value= ui_get_but_val(but);
2112         if( but->pointype==FLO ) {
2113                 if(but->a2) { /* amount of digits defined */
2114                         if(but->a2==1) sprintf(str, "%.1f", value);
2115                         else if(but->a2==2) sprintf(str, "%.2f", value);
2116                         else if(but->a2==3) sprintf(str, "%.3f", value);
2117                         else sprintf(str, "%.4f", value);
2118                 }
2119                 else sprintf(str, "%.3f", value);
2120         }
2121         else {
2122                 sprintf(str, "%d", (int)value);
2123         }
2124         /* store values before calling as text button */
2125         point= but->poin;
2126         but->poin= str;
2127         but_func= but->func;
2128         but->func= NULL;
2129         min= but->min;
2130         max= but->max;
2131         but->min= 0.0;
2132         but->max= UI_MAX_DRAW_STR - 1; /* for py strings evaluation */
2133         temp= but->type;
2134         but->type= TEX;
2135         textleft= but->flag & UI_TEXT_LEFT;
2136         but->flag |= UI_TEXT_LEFT;
2137         ui_check_but(but);
2138
2139         retval= ui_do_but_TEX(but);
2140
2141         /* restore values */
2142         but->type= temp;
2143         but->poin= point;
2144         but->func= but_func;
2145         but->min= min;
2146         but->max= max;
2147         if(textleft==0) but->flag &= ~UI_TEXT_LEFT;
2148
2149 #ifndef DISABLE_PYTHON
2150         if(BPY_button_eval(str, &value)) {
2151                 /* Uncomment this if you want to see an error message (and annoy users) */
2152                 /* error("Invalid Python expression, check console");*/
2153                 value = 0.0f; /* Zero out value on error */
2154
2155                 if(str[0])
2156                         retval = 0;  /* invalidate return value if eval failed, except when string was null */
2157         }
2158 #else
2159         value=atof(str);
2160 #endif
2161
2162         if(but->pointype!=FLO) value= (int)value;
2163
2164         if(but->type==NUMABS) value= fabs(value);
2165         if(value<min) value= min;
2166         if(value>max) value= max;
2167
2168         ui_set_but_val(but, value);
2169         ui_check_but(but);
2170         ui_draw_but(but);
2171
2172         return retval;
2173 }
2174
2175 static int ui_do_but_NUM(uiBut *but)
2176 {
2177         double value, butrange;
2178         float deler, fstart, f, tempf, pressure;
2179         int lvalue, temp, orig_x; /*  , firsttime=1; */
2180         short retval=0, qual, sx, mval[2], pos=0;
2181
2182         but->flag |= UI_SELECT;
2183         ui_draw_but(but);
2184         ui_block_flush_back(but->block);
2185
2186         uiGetMouse(mywinget(), mval);
2187         value= ui_get_but_val(but);
2188
2189         sx= mval[0];
2190         orig_x = sx; /* Store so we can scale the rate of change by the dist the mouse is from its original xlocation */
2191         butrange= (but->max - but->min);
2192         fstart= (butrange == 0.0)? 0.0f: (value - but->min)/butrange;
2193         f= fstart;
2194
2195         temp= (int)value;
2196         tempf= value;
2197
2198         if(get_qual() & LR_SHIFTKEY) {  /* make it textbut */
2199                 if( ui_act_as_text_but(but) ) retval= but->retval;
2200         }
2201         else {
2202                 retval= but->retval;
2203                 /* firsttime: this button can be approached with enter as well */
2204
2205                 /* drag-lock - prevent unwanted scroll adjustments */
2206                 /* change last value (now 3) to adjust threshold in pixels */
2207                 while (get_mbut() & L_MOUSE & ( abs(mval[0]-sx) <= 3) ) {
2208                         uiGetMouse(mywinget(), mval);
2209                 }
2210                 sx = mval[0]; /* ignore mouse movement within drag-lock */
2211
2212                 while (get_mbut() & L_MOUSE) {
2213                         qual= get_qual();
2214                         pressure = get_pressure();
2215
2216                         uiGetMouse(mywinget(), mval);
2217
2218                         deler= 500;
2219                         if( but->pointype!=FLO ) {
2220
2221                                 if( (but->max-but->min)<100 ) deler= 200.0;
2222                                 if( (but->max-but->min)<25 ) deler= 50.0;
2223                         }
2224
2225                         if(qual & LR_SHIFTKEY) deler*= 10.0;
2226                         if(qual & LR_ALTKEY) deler*= 20.0;
2227
2228                         /* de-sensitise based on tablet pressure */
2229                         if (ELEM(get_activedevice(), DEV_STYLUS, DEV_ERASER)) deler /= pressure;
2230
2231                         if(mval[0] != sx) {
2232                                 if( but->pointype==FLO && but->max-but->min > 11) {
2233                                         /* non linear change in mouse input- good for high precicsion */
2234                                         f+= (((float)(mval[0]-sx))/deler) * (fabs(orig_x-mval[0])*0.002);
2235                                 } else if ( but->pointype!=FLO && but->max-but->min > 129) { /* only scale large int buttons */
2236                                         /* non linear change in mouse input- good for high precicsionm ints need less fine tuning */
2237                                         f+= (((float)(mval[0]-sx))/deler) * (fabs(orig_x-mval[0])*0.004);
2238                                 } else {
2239                                         /*no scaling */
2240                                         f+= ((float)(mval[0]-sx))/deler ;
2241                                 }
2242
2243                                 if(f>1.0) f= 1.0;
2244                                 if(f<0.0) f= 0.0;
2245                                 sx= mval[0];
2246                                 tempf= ( but->min + f*(but->max-but->min));
2247
2248                                 if( but->pointype!=FLO ) {
2249
2250                                         temp= floor(tempf+.5);
2251
2252                                         if(tempf==but->min || tempf==but->max);
2253                                         else if(qual & LR_CTRLKEY) {
2254                                                 if(qual & LR_SHIFTKEY) temp= 100*(temp/100);
2255                                                 else temp= 10*(temp/10);
2256                                         }
2257                                         if( temp>=but->min && temp<=but->max) {
2258
2259                                                 value= ui_get_but_val(but);
2260                                                 lvalue= (int)value;
2261
2262                                                 if(temp != lvalue ) {
2263                                                         pos= 1;
2264                                                         ui_set_but_val(but, (double)temp);
2265                                                         ui_check_but(but);
2266                                                         ui_draw_but(but);
2267                                                         ui_block_flush_back(but->block);
2268
2269                                                         uibut_do_func(but);
2270                                                 }
2271                                         }
2272
2273                                 }
2274                                 else {
2275                                         temp= 0;
2276                                         if(qual & LR_CTRLKEY) {
2277                                                 if(qual & LR_SHIFTKEY) {
2278                                                         if(tempf==but->min || tempf==but->max);
2279                                                         else if(but->max-but->min < 2.10) tempf= 0.01*floor(100.0*tempf);
2280                                                         else if(but->max-but->min < 21.0) tempf= 0.1*floor(10.0*tempf);
2281                                                         else tempf= floor(tempf);
2282                                                 }
2283                                                 else {
2284                                                         if(tempf==but->min || tempf==but->max);
2285                                                         else if(but->max-but->min < 2.10) tempf= 0.1*floor(10*tempf);
2286                                                         else if(but->max-but->min < 21.0) tempf= floor(tempf);
2287                                                         else tempf= 10.0*floor(tempf/10.0);
2288                                                 }
2289                                         }
2290
2291                                         if( tempf>=but->min && tempf<=but->max) {
2292                                                 value= ui_get_but_val(but);
2293
2294                                                 if(tempf != value ) {
2295                                                         pos= 1;
2296                                                         ui_set_but_val(but, tempf);
2297                                                         ui_check_but(but);
2298                                                         ui_draw_but(but);
2299                                                         ui_block_flush_back(but->block);
2300                                                 }
2301                                         }
2302
2303                                 }
2304                         }
2305                         BIF_wait_for_statechange();
2306                 }
2307
2308                 /* click on the side arrows to increment/decrement, click inside
2309                 * to edit the value directly */
2310                 if(pos==0) {  /* plus 1 or minus 1 */
2311                         if( but->pointype!=FLO ) {
2312
2313                                 if(sx < (but->x1 + (but->x2 - but->x1)/3 - 3)) {
2314                                         temp--;
2315                                         if( temp>=but->min && temp<=but->max) ui_set_but_val(but, (double)temp);
2316                                 }
2317                                 else if(sx > (but->x1 + (2*(but->x2 - but->x1)/3) + 3)) {
2318                                         temp++;
2319                                         if( temp>=but->min && temp<=but->max) ui_set_but_val(but, (double)temp);
2320                                 }
2321                                 else {
2322                                         if( ui_act_as_text_but(but) ); else retval= 0;
2323                                 }
2324                         }
2325                         else {
2326
2327                                 if(sx < (but->x1 + (but->x2 - but->x1)/3 - 3)) {
2328                                         tempf-= 0.01*but->a1;
2329                                         if (tempf < but->min) tempf = but->min;
2330                                         ui_set_but_val(but, tempf);
2331                                 }
2332                                 else if(sx > but->x1 + (2*((but->x2 - but->x1)/3) + 3)) {
2333                                         tempf+= 0.01*but->a1;
2334                                         if (tempf < but->min) tempf = but->min;
2335                                         ui_set_but_val(but, tempf);
2336                                 }
2337                                 else {
2338                                         if( ui_act_as_text_but(but) ); else retval= 0;
2339                                 }
2340                         }
2341                 }
2342         }
2343
2344         but->flag &= ~UI_SELECT;
2345         ui_check_but(but);
2346         ui_draw_but(but);
2347         ui_block_flush_back(but->block);
2348
2349         uibut_do_func(but);
2350
2351         return retval;
2352 }
2353
2354 static int ui_do_but_TOG3(uiBut *but)
2355 {
2356
2357         if( but->pointype==SHO ) {
2358                 short *sp= (short *)but->poin;
2359
2360                 if( BTST(sp[1], but->bitnr)) {
2361                         sp[1]= BCLR(sp[1], but->bitnr);
2362                         sp[0]= BCLR(sp[0], but->bitnr);
2363                 }
2364                 else if( BTST(sp[0], but->bitnr)) {
2365                         sp[1]= BSET(sp[1], but->bitnr);
2366                 } else {
2367                         sp[0]= BSET(sp[0], but->bitnr);
2368                 }
2369         }
2370         else {
2371                 if( BTST(*(but->poin+2), but->bitnr)) {
2372                         *(but->poin+2)= BCLR(*(but->poin+2), but->bitnr);
2373                         *(but->poin)= BCLR(*(but->poin), but->bitnr);
2374                 }
2375                 else if( BTST(*(but->poin), but->bitnr)) {
2376                         *(but->poin+2)= BSET(*(but->poin+2), but->bitnr);
2377                 } else {
2378                         *(but->poin)= BSET(*(but->poin), but->bitnr);
2379                 }
2380         }
2381
2382         ui_is_but_sel(but);
2383         ui_draw_but(but);
2384
2385         return but->retval;
2386 }
2387
2388 static int ui_do_but_ICONROW(uiBut *but)
2389 {
2390         ListBase listb= {NULL, NULL};
2391         uiBlock *block;
2392         int a;
2393         short event;
2394
2395         but->flag |= UI_SELECT;
2396         ui_draw_but(but);
2397         ui_block_flush_back(but->block);        // flush because this button creates own blocks loop
2398
2399         /* here we go! */
2400         block= uiNewBlock(&listb, "menu", UI_EMBOSSP, UI_HELV, but->win);
2401         block->flag= UI_BLOCK_LOOP|UI_BLOCK_REDRAW|UI_BLOCK_NUMSELECT;
2402         block->themecol= TH_MENU_ITEM;
2403
2404         for(a=(int)but->min; a<=(int)but->max; a++) {
2405                 uiDefIconBut(block, BUTM|but->pointype, but->retval, but->icon+(a-but->min), 0, (short)(18*a), (short)(but->x2-but->x1-4), 18, but->poin, (float)a, 0.0, 0, 0, "");
2406         }
2407         block->direction= UI_TOP;
2408         ui_positionblock(block, but);
2409
2410         /* the block is made with but-win, but is handled in mainwin space...
2411            this is needs better implementation */
2412         block->win= G.curscreen->mainwin;
2413
2414         event= uiDoBlocks(&listb, 0, 1);
2415
2416         but->flag &= ~UI_SELECT;
2417         ui_check_but(but);
2418         ui_draw_but(but);
2419
2420         if (event & UI_RETURN_OK) {
2421                 return but->retval;
2422         } else {
2423                 return 0;
2424         }
2425 }
2426
2427 static int ui_do_but_ICONTEXTROW(uiBut *but)
2428 {
2429         uiBlock *block;
2430         ListBase listb={NULL, NULL};
2431         int width, a, xmax, ypos;
2432         MenuData *md;
2433         short event;
2434         but->flag |= UI_SELECT;
2435         ui_draw_but(but);
2436         ui_block_flush_back(but->block);        // flush because this button creates own blocks loop
2437
2438         block= uiNewBlock(&listb, "menu", UI_EMBOSSP, UI_HELV, but->win);
2439         block->flag= UI_BLOCK_LOOP|UI_BLOCK_REDRAW|UI_BLOCK_NUMSELECT;
2440         block->themecol= TH_MENU_ITEM;
2441
2442         md= decompose_menu_string(but->str);
2443
2444         /* size and location */
2445         /* expand menu width to fit labels */
2446         if(md->title)
2447                 width= 2*strlen(md->title)+BIF_GetStringWidth(block->curfont, md->title, (U.transopts & USER_TR_MENUS));
2448         else
2449                 width= 0;
2450
2451         for(a=0; a<md->nitems; a++) {
2452                 xmax= BIF_GetStringWidth(block->curfont, md->items[a].str, (U.transopts & USER_TR_MENUS));
2453                 if(xmax>width) width= xmax;
2454         }
2455
2456         width+= 30;
2457         if (width<50) width=50;
2458
2459         ypos = 1;
2460
2461         /* loop through the menu options and draw them out with icons & text labels */
2462         for(a=0; a<md->nitems; a++) {
2463
2464                 /* add a space if there's a separator (%l) */
2465                 if (strcmp(md->items[a].str, "%l")==0) {
2466                         ypos +=3;
2467                 }
2468                 else {
2469                         uiDefIconTextBut(block, BUTM|but->pointype, but->retval, (short)((but->icon)+(md->items[a].retval-but->min)), md->items[a].str, 0, ypos,(short)width, 19, but->poin, (float) md->items[a].retval, 0.0, 0, 0, "");
2470                         ypos += 20;
2471                 }
2472         }
2473
2474         if(md->title) {
2475                 uiBut *bt;
2476                 uiSetCurFont(block, block->font+1);
2477                 bt= uiDefBut(block, LABEL, 0, md->title, 0, ypos, (short)width, 19, NULL, 0.0, 0.0, 0, 0, "");
2478                 uiSetCurFont(block, block->font);
2479                 bt->flag= UI_TEXT_LEFT;
2480         }
2481
2482         block->direction= UI_TOP;
2483         ui_positionblock(block, but);
2484
2485         /* the block is made with but-win, but is handled in mainwin space...
2486            this is needs better implementation */
2487         block->win= G.curscreen->mainwin;
2488
2489         uiBoundsBlock(block, 3);
2490
2491         event = uiDoBlocks(&listb, 0, 1);
2492
2493         menudata_free(md);
2494
2495         but->flag &= ~UI_SELECT;
2496         ui_check_but(but);
2497         ui_draw_but(but);
2498
2499         if (event & UI_RETURN_OK) {
2500                 uibut_do_func(but);
2501                 return but->retval;
2502         } else {
2503                 return 0;
2504         }
2505 }
2506
2507 static int ui_do_but_IDPOIN(uiBut *but)
2508 {
2509         char str[UI_MAX_DRAW_STR];
2510         ID *id;
2511
2512         id= *but->idpoin_idpp;
2513         if(id) strcpy(str, id->name+2);
2514         else str[0]= 0;
2515
2516         but->type= TEX;
2517         but->poin= str;
2518         but->min= 0.0;
2519         but->max= 22.0;
2520         ui_check_but(but);
2521         ui_do_but_TEX(but);
2522         but->poin= NULL;
2523         but->type= IDPOIN;
2524
2525         but->idpoin_func(str, but->idpoin_idpp);
2526         ui_check_but(but);
2527         ui_draw_but(but);
2528
2529         return but->retval;
2530 }
2531
2532 static int ui_do_but_SLI(uiBut *but)
2533 {
2534         float f, fstart, tempf = 0.0, deler, value;
2535         int sx, h, temp, pos=0, lvalue, redraw;
2536         short mval[2], qual;
2537
2538         value= ui_get_but_val(but);
2539         uiGetMouse(mywinget(), mval);
2540
2541         sx= mval[0];
2542         h= but->y2-but->y1;
2543         fstart= but->max-but->min;
2544         fstart= (value - but->min)/fstart;
2545         temp= 32767;
2546
2547         if( but->type==NUMSLI) deler= ( (but->x2-but->x1)/2 - 5.0*but->aspect);
2548         else if( but->type==HSVSLI) deler= ( (but->x2-but->x1)/2 - 5.0*but->aspect);
2549         else deler= (but->x2-but->x1- 5.0*but->aspect);
2550
2551
2552         while (get_mbut() & L_MOUSE) {
2553
2554                 qual= get_qual();
2555                 uiGetMouse(mywinget(), mval);
2556
2557                 f= (float)(mval[0]-sx)/deler +fstart;
2558
2559                 if (qual & LR_SHIFTKEY) {
2560                         f= (f-fstart)/10.0 + fstart;
2561                 }
2562
2563                 CLAMP(f, 0.0, 1.0);
2564                 tempf= but->min+f*(but->max-but->min);
2565                 temp= floor(tempf+.5);
2566
2567                 if(qual & LR_CTRLKEY) {
2568                         if(tempf==but->min || tempf==but->max);
2569                         else if( but->pointype==FLO ) {
2570
2571                                 if(qual & LR_SHIFTKEY) {
2572                                         if(tempf==but->min || tempf==but->max);
2573                                         else if(but->max-but->min < 2.10) tempf= 0.01*floor(100.0*tempf);
2574                                         else if(but->max-but->min < 21.0) tempf= 0.1*floor(10.0*tempf);
2575                                         else tempf= floor(tempf);
2576                                 }
2577                                 else {
2578                                         if(but->max-but->min < 2.10) tempf= 0.1*floor(10*tempf);
2579                                         else if(but->max-but->min < 21.0) tempf= floor(tempf);
2580                                         else tempf= 10.0*floor(tempf/10.0);
2581                                 }
2582                         }
2583                         else {
2584                                 temp= 10*(temp/10);
2585                                 tempf= temp;
2586                         }
2587                 }
2588
2589                 value= ui_get_but_val(but);
2590                 lvalue= floor(value+0.5);
2591
2592                 if( but->pointype!=FLO )
2593                         redraw= (temp != lvalue);
2594                 else
2595                         redraw= (tempf != value);
2596
2597                 if (redraw) {
2598                         pos= 1;
2599                         ui_set_but_val(but, tempf);
2600                         ui_check_but(but);
2601                         ui_draw_but(but);
2602                         ui_block_flush_back(but->block);
2603
2604                         if(but->a1) {   /* color number */
2605                                 uiBut *bt= but->prev;
2606                                 while(bt) {
2607                                         if(bt->a2 == but->a1) ui_draw_but(bt);
2608                                         bt= bt->prev;
2609                                 }
2610                                 bt= but->next;
2611                                 while(bt) {
2612                                         if(bt->a2 == but->a1) ui_draw_but(bt);
2613                                         bt= bt->next;
2614                                 }
2615                         }
2616                         /* save current window matrix (global UIwinmat)
2617                            because button callback function MIGHT change it
2618                            - which has until now occured through the Python API
2619                         */
2620                         /* This is really not possible atm... nothing in Blender
2621                            supports such functionality even now. Calling function
2622                            callbacks while using a button screws up the UI (ton)
2623                         */
2624                         /* Mat4CpyMat4(curmatrix, UIwinmat);
2625                         uibut_do_func(but);
2626                         Mat4CpyMat4(UIwinmat, curmatrix); */
2627                 }
2628                 else BIF_wait_for_statechange();
2629         }
2630
2631
2632         if(temp!=32767 && pos==0) {  /* plus 1 or minus 1 */
2633
2634                 if( but->type==SLI) f= (float)(mval[0]-but->x1)/(but->x2-but->x1-h);
2635                 else f= (float)(mval[0]- (but->x1+but->x2)/2)/( (but->x2-but->x1)/2 - h);
2636
2637                 f= but->min+f*(but->max-but->min);
2638
2639                 if( but->pointype!=FLO ) {
2640
2641                         if(f<temp) temp--;
2642                         else temp++;
2643                         if( temp>=but->min && temp<=but->max)
2644                                 ui_set_but_val(but, (float)temp);
2645
2646                 }
2647                 else {
2648
2649                         if(f<tempf) tempf-=.01;
2650                         else tempf+=.01;
2651                         if( tempf>=but->min && tempf<=but->max)
2652                                 ui_set_but_val(but, tempf);
2653
2654                 }
2655         }
2656         ui_check_but(but);
2657         ui_draw_but(but);
2658         uibut_do_func(but);
2659         ui_block_flush_back(but->block);
2660
2661         return but->retval;
2662 }
2663
2664 static int ui_do_but_NUMSLI(uiBut *but)
2665 {
2666         short mval[2];
2667
2668         /* first define if it's a slider or textbut */
2669         uiGetMouse(mywinget(), mval);
2670
2671         if(mval[0]>= -6+(but->x1+but->x2)/2 ) { /* slider */
2672                 but->flag |= UI_SELECT;
2673                 ui_draw_but(but);
2674                 ui_do_but_SLI(but);
2675                 but->flag &= ~UI_SELECT;
2676         }
2677         else {
2678                 ui_act_as_text_but(but);
2679                 uibut_do_func(but);     // this is done in ui_do_but_SLI() not in ui_act_as_text_but()
2680         }
2681
2682         while(get_mbut() & L_MOUSE) BIF_wait_for_statechange();
2683
2684         ui_draw_but(but);
2685
2686         /* hsv patch */
2687         if(but->type==HSVSLI) {
2688
2689                 if(but->str[0]=='H') {
2690                         ui_draw_but(but->next);
2691                         ui_draw_but(but->next->next);
2692                 }
2693                 else if(but->str[0]=='S') {
2694                         ui_draw_but(but->next);
2695                         ui_draw_but(but->prev);
2696                 }
2697                 else if(but->str[0]=='V') {
2698                         ui_draw_but(but->prev);
2699                         ui_draw_but(but->prev->prev);
2700                 }
2701         }
2702
2703         return but->retval;
2704 }
2705
2706 /* event denotes if we make first item active or not */
2707 static uiBlock *ui_do_but_BLOCK(uiBut *but, int event)
2708 {
2709         uiBlock *block;
2710         uiBut *bt;
2711
2712         but->flag |= UI_SELECT;
2713         ui_draw_but(but);
2714
2715         block= but->block_func(but->poin);
2716         block->parent= but->block;      /* allows checking for nested pulldowns */
2717
2718         block->xofs = -2;       /* for proper alignment */
2719
2720         /* only used for automatic toolbox, so can set the shift flag */
2721         if(but->flag & UI_MAKE_TOP) {
2722                 block->direction= UI_TOP|UI_SHIFT_FLIPPED;
2723                 uiBlockFlipOrder(block);
2724         }
2725         if(but->flag & UI_MAKE_DOWN) block->direction= UI_DOWN|UI_SHIFT_FLIPPED;
2726         if(but->flag & UI_MAKE_LEFT) block->direction |= UI_LEFT;
2727         if(but->flag & UI_MAKE_RIGHT) block->direction |= UI_RIGHT;
2728
2729         ui_positionblock(block, but);
2730         block->flag |= UI_BLOCK_LOOP;
2731
2732         /* blocks can come (and get scaled) from a normal window, now we go to screenspace */
2733         block->win= G.curscreen->mainwin;
2734         for(bt= block->buttons.first; bt; bt= bt->next) bt->win= block->win;
2735         bwin_getsinglematrix(block->win, block->winmat);
2736
2737         /* postpone draw, this will cause a new window matrix, first finish all other buttons */
2738         block->flag |= UI_BLOCK_REDRAW;
2739
2740         if(event!=MOUSEX && event!=MOUSEY && event!=LEFTMOUSE && but->type==BLOCK) {
2741                 bt= ui_but_first(block);
2742                 if(bt) bt->flag |= UI_ACTIVE;
2743         }
2744
2745         but->flag &= ~UI_SELECT;
2746         uibut_do_func(but);
2747
2748         if(but->retval)
2749                 addqueue(curarea->win, UI_BUT_EVENT, (short)but->retval);
2750
2751         return block;
2752 }
2753
2754 static int ui_do_but_BUTM(uiBut *but)
2755 {
2756         /* draw 'pushing-in' when clicked on for use as a normal button in a panel */
2757         do {
2758                 int oflag= but->flag;
2759                 short mval[2];
2760
2761                 uiGetMouse(mywinget(), mval);
2762
2763                 if (uibut_contains_pt(but, mval))
2764                         but->flag |= UI_SELECT;
2765                 else
2766                         but->flag &= ~UI_SELECT;
2767
2768                 if (but->flag != oflag) {
2769                         ui_draw_but(but);
2770                         ui_block_flush_back(but->block);
2771                 }
2772
2773                 PIL_sleep_ms(10);
2774         } while (get_mbut() & L_MOUSE);
2775
2776         ui_set_but_val(but, but->min);
2777         UIafterfunc_butm= but->butm_func;
2778         UIafterfunc_arg1= but->butm_func_arg;
2779         UIafterval= but->a2;
2780
2781         uibut_do_func(but);
2782
2783         but->flag &= ~UI_SELECT;
2784         ui_draw_but(but);
2785
2786         return but->retval;
2787 }
2788
2789 static int ui_do_but_LABEL(uiBut *but)
2790 {
2791         uibut_do_func(but);
2792         return but->retval;
2793 }
2794
2795 static uiBut *ui_get_valid_link_button(uiBlock *block, uiBut *but, short *mval)
2796 {
2797         uiBut *bt;
2798
2799                 /* find button to link to */
2800         for (bt= block->buttons.first; bt; bt= bt->next)
2801                 if(bt!=but && uibut_contains_pt(bt, mval))
2802                         break;
2803
2804         if (bt) {
2805                 if (but->type==LINK && bt->type==INLINK) {
2806                         if( but->link->tocode == (int)bt->min ) {
2807                                 return bt;
2808                         }
2809                 }
2810                 else if(but->type==INLINK && bt->type==LINK) {
2811                         if( bt->link->tocode == (int)but->min ) {
2812                                 return bt;
2813                         }
2814                 }
2815         }
2816
2817         return NULL;
2818 }
2819
2820 static int ui_is_a_link(uiBut *from, uiBut *to)
2821 {
2822         uiLinkLine *line;
2823         uiLink *link;
2824
2825         link= from->link;
2826         if(link) {
2827                 line= link->lines.first;
2828                 while(line) {
2829                         if(line->from==from && line->to==to) return 1;
2830                         line= line->next;
2831                 }
2832         }
2833         return 0;
2834 }
2835
2836 static uiBut *ui_find_inlink(uiBlock *block, void *poin)
2837 {
2838         uiBut *but;
2839
2840         but= block->buttons.first;
2841         while(but) {
2842                 if(but->type==INLINK) {
2843                         if(but->poin == poin) return but;
2844                 }
2845                 but= but->next;
2846         }
2847         return NULL;
2848 }
2849
2850 static void ui_add_link_line(ListBase *listb, uiBut *but, uiBut *bt)
2851 {
2852         uiLinkLine *line;
2853
2854         line= MEM_callocN(sizeof(uiLinkLine), "linkline");
2855         BLI_addtail(listb, line);
2856         line->from= but;
2857         line->to= bt;
2858 }
2859
2860 uiBut *uiFindInlink(uiBlock *block, void *poin)
2861 {
2862         return ui_find_inlink(block, poin);
2863 }
2864
2865 void uiComposeLinks(uiBlock *block)
2866 {
2867         uiBut *but, *bt;
2868         uiLink *link;
2869         void ***ppoin;
2870         int a;
2871
2872         but= block->buttons.first;
2873         while(but) {
2874                 if(but->type==LINK) {
2875                         link= but->link;
2876
2877                         /* for all pointers in the array */
2878                         if(link) {
2879                                 if(link->ppoin) {
2880                                         ppoin= link->ppoin;
2881                                         for(a=0; a < *(link->totlink); a++) {
2882                                                 bt= ui_find_inlink(block, (*ppoin)[a] );
2883                                                 if(bt) {
2884                                                         ui_add_link_line(&link->lines, but, bt);
2885                                                 }
2886                                         }
2887                                 }
2888                                 else if(link->poin) {
2889                                         bt= ui_find_inlink(block, *(link->poin) );
2890                                         if(bt) {
2891                                                 ui_add_link_line(&link->lines, but, bt);
2892                                         }
2893                                 }
2894                         }
2895                 }
2896                 but= but->next;
2897         }
2898 }
2899
2900 static void ui_add_link(uiBut *from, uiBut *to)
2901 {
2902         /* in 'from' we have to add a link to 'to' */
2903         uiLink *link;
2904         void **oldppoin;
2905         int a;
2906
2907         if(ui_is_a_link(from, to)) {
2908                 printf("already exists\n");
2909                 return;
2910         }
2911
2912         link= from->link;
2913
2914         /* are there more pointers allowed? */
2915         if(link->ppoin) {
2916                 oldppoin= *(link->ppoin);
2917
2918                 (*(link->totlink))++;
2919                 *(link->ppoin)= MEM_callocN( *(link->totlink)*sizeof(void *), "new link");
2920
2921                 for(a=0; a< (*(link->totlink))-1; a++) {
2922                         (*(link->ppoin))[a]= oldppoin[a];
2923                 }
2924                 (*(link->ppoin))[a]= to->poin;
2925
2926                 if(oldppoin) MEM_freeN(oldppoin);
2927         }
2928         else {
2929                 *(link->poin)= to->poin;
2930         }
2931
2932 }
2933
2934 static int ui_do_but_LINK(uiBlock *block, uiBut *but)
2935 {
2936         /*
2937          * This button only visualizes, the dobutton mode
2938          * can add a new link, but then the whole system
2939          * should be redrawn/initialized.
2940          *
2941          */
2942         uiBut *bt=0, *bto=NULL;
2943         short sval[2], mval[2], mvalo[2], first= 1;
2944
2945         uiGetMouse(curarea->win, sval);
2946         mvalo[0]= sval[0];
2947         mvalo[1]= sval[1];
2948
2949         while (get_mbut() & L_MOUSE) {
2950                 uiGetMouse(curarea->win, mval);
2951
2952                 if(mval[0]!=mvalo[0] || mval[1]!=mvalo[1] || first) {
2953                                 /* clear completely, because of drawbuttons */
2954                         bt= ui_get_valid_link_button(block, but, mval);
2955                         if(bt) {
2956                                 bt->flag |= UI_ACTIVE;
2957                                 ui_draw_but(bt);
2958                         }
2959                         if(bto && bto!=bt) {
2960                                 bto->flag &= ~UI_ACTIVE;
2961                                 ui_draw_but(bto);
2962                         }
2963                         bto= bt;
2964
2965                         if (!first) {
2966                                 glutil_draw_front_xor_line(sval[0], sval[1], mvalo[0], mvalo[1]);
2967                         }
2968                         glutil_draw_front_xor_line(sval[0], sval[1], mval[0], mval[1]);
2969
2970                         mvalo[0]= mval[0];
2971                         mvalo[1]= mval[1];
2972
2973                         first= 0;
2974                 }
2975                 else BIF_wait_for_statechange();
2976         }
2977
2978         if (!first) {
2979                 glutil_draw_front_xor_line(sval[0], sval[1], mvalo[0], mvalo[1]);
2980         }
2981
2982         if(bt) {
2983                 if(but->type==LINK) ui_add_link(but, bt);
2984                 else ui_add_link(bt, but);
2985
2986                 scrarea_queue_winredraw(curarea);
2987         }
2988
2989         return 0;
2990 }
2991
2992 /* picker sizes S hsize, F full size, D spacer, B button/pallette height  */
2993 #define SPICK   110.0
2994 #define FPICK   180.0
2995 #define DPICK   6.0
2996 #define BPICK   24.0
2997
2998 #define UI_PALETTE_TOT 16
2999 /* note; in tot+1 the old color is stored */
3000 static float palette[UI_PALETTE_TOT+1][3]= {
3001 {0.93, 0.83, 0.81}, {0.88, 0.89, 0.73}, {0.69, 0.81, 0.57}, {0.51, 0.76, 0.64},
3002 {0.37, 0.56, 0.61}, {0.33, 0.29, 0.55}, {0.46, 0.21, 0.51}, {0.40, 0.12, 0.18},
3003 {1.0, 1.0, 1.0}, {0.85, 0.85, 0.85}, {0.7, 0.7, 0.7}, {0.56, 0.56, 0.56},
3004 {0.42, 0.42, 0.42}, {0.28, 0.28, 0.28}, {0.14, 0.14, 0.14}, {0.0, 0.0, 0.0}
3005 };
3006
3007 /* for picker, while editing hsv */
3008 static void ui_set_but_hsv(uiBut *but)
3009 {
3010         float col[3];
3011
3012         hsv_to_rgb(but->hsv[0], but->hsv[1], but->hsv[2], col, col+1, col+2);
3013         ui_set_but_vectorf(but, col);
3014 }
3015
3016 static void update_picker_hex(uiBlock *block, float *rgb)
3017 {
3018         uiBut *bt;
3019         char col[16];
3020
3021         sprintf(col, "%02X%02X%02X", (unsigned int)(rgb[0]*255.0), (unsigned int)(rgb[1]*255.0), (unsigned int)(rgb[2]*255.0));
3022
3023         // this updates button strings, is hackish... but button pointers are on stack of caller function
3024
3025         for(bt= block->buttons.first; bt; bt= bt->next) {
3026                 if(strcmp(bt->str, "Hex: ")==0) {
3027                         strcpy(bt->poin, col);
3028                         ui_check_but(bt);
3029                         break;
3030                 }
3031         }
3032 }
3033
3034 static void update_picker_buts_hsv(uiBlock *block, float *hsv, char *poin)
3035 {
3036         uiBut *bt;
3037         float r, g, b;
3038         float rgb[3];
3039
3040         // this updates button strings, is hackish... but button pointers are on stack of caller function
3041         hsv_to_rgb(hsv[0], hsv[1], hsv[2], &r, &g, &b);
3042
3043         rgb[0] = r; rgb[1] = g; rgb[2] = b;
3044         update_picker_hex(block, rgb);
3045
3046         for(bt= block->buttons.first; bt; bt= bt->next) {
3047                 if(bt->type==HSVCUBE) {
3048                         VECCOPY(bt->hsv, hsv);
3049                         ui_set_but_hsv(bt);
3050                 }
3051                 else if(bt->str[1]==' ') {
3052                         if(bt->str[0]=='R') {
3053                                 ui_set_but_val(bt, r);
3054                         }
3055                         else if(bt->str[0]=='G') {
3056                                 ui_set_but_val(bt, g);
3057                         }
3058                         else if(bt->str[0]=='B') {
3059                                 ui_set_but_val(bt, b);
3060                         }
3061                         else if(bt->str[0]=='H') {
3062                                 ui_set_but_val(bt, hsv[0]);
3063                         }
3064                         else if(bt->str[0]=='S') {
3065                                 ui_set_but_val(bt, hsv[1]);
3066                         }
3067                         else if(bt->str[0]=='V') {
3068                                 ui_set_but_val(bt, hsv[2]);
3069                         }
3070                 }
3071         }
3072 }
3073
3074 static void update_picker_buts_hex(uiBlock *block, char *hexcol)
3075 {
3076         uiBut *bt;
3077         float r=0, g=0, b=0;
3078         float h, s, v;
3079
3080
3081         // this updates button strings, is hackish... but button pointers are on stack of caller function
3082         hex_to_rgb(hexcol, &r, &g, &b);
3083         rgb_to_hsv(r, g, b, &h, &s, &v);
3084
3085         for(bt= block->buttons.first; bt; bt= bt->next) {
3086                 if(bt->type==HSVCUBE) {
3087                         bt->hsv[0] = h;
3088                         bt->hsv[1] = s;
3089                         bt->hsv[2] = v;
3090                         ui_set_but_hsv(bt);
3091                 }
3092                 else if(bt->str[1]==' ') {
3093                         if(bt->str[0]=='R') {
3094                                 ui_set_but_val(bt, r);
3095                         }
3096                         else if(bt->str[0]=='G') {
3097                                 ui_set_but_val(bt, g);
3098                         }
3099                         else if(bt->str[0]=='B') {
3100                                 ui_set_but_val(bt, b);
3101                         }
3102                         else if(bt->str[0]=='H') {
3103                                 ui_set_but_val(bt, h);
3104                         }
3105                         else if(bt->str[0]=='S') {
3106                                 ui_set_but_val(bt, s);
3107                         }
3108                         else if(bt->str[0]=='V') {
3109                                 ui_set_but_val(bt, v);
3110                         }