source/blender/editors/interface/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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
  19  *
  20  * The Original Code is Copyright (C) 2001-2002 by NaN Holding BV.
  21  * All rights reserved.
  22  *
  23  * Contributor(s): Blender Foundation 2002-2008, full recode.
  24  *
  25  * ***** END GPL LICENSE BLOCK *****
  26  */
  27
  28 /** \file blender/editors/interface/interface.c
  29  *  \ingroup edinterface
  30  */
  31
  32
  33 #include <float.h>
  34 #include <limits.h>
  35 #include <math.h>
  36 #include <string.h>
  37 #include <ctype.h>
  38
  39 #include "MEM_guardedalloc.h"
  40
  41 #include "DNA_scene_types.h"
  42 #include "DNA_screen_types.h"
  43 #include "DNA_userdef_types.h"
  44
  45 #include "BLI_math.h"
  46 #include "BLI_blenlib.h"
  47 #include "BLI_dynstr.h"
  48 #include "BLI_utildefines.h"
  49
  50 #include "BKE_context.h"
  51 #include "BKE_library.h"
  52 #include "BKE_unit.h"
  53 #include "BKE_utildefines.h" /* FILE_MAX */
  54
  55 #include "BIF_gl.h"
  56
  57 #include "BLF_api.h"
  58
  59 #include "UI_interface.h"
  60
  61
  62 #include "WM_api.h"
  63 #include "WM_types.h"
  64 #include "wm_subwindow.h"
  65 #include "wm_window.h"
  66
  67 #include "RNA_access.h"
  68
  69 #include "BPY_extern.h"
  70
  71 #include "interface_intern.h"
  72
  73 #define MENU_WIDTH                      120
  74 #define MENU_ITEM_HEIGHT        20
  75 #define MENU_SEP_HEIGHT         6
  76
  77 /*
  78  * a full doc with API notes can be found in bf-blender/trunk/blender/doc/guides/interface_API.txt
  79  *
  80  * uiBlahBlah()         external function
  81  * ui_blah_blah()       internal function
  82  */
  83
  84 static void ui_free_but(const bContext *C, uiBut *but);
  85
  86 /* ************* translation ************** */
  87
  88 int ui_translate_buttons(void)
  89 {
  90         return (U.transopts & USER_TR_BUTTONS);
  91 }
  92
  93 int ui_translate_menus(void)
  94 {
  95         return (U.transopts & USER_TR_MENUS);
  96 }
  97
  98 int ui_translate_tooltips(void)
  99 {
 100         return (U.transopts & USER_TR_TOOLTIPS);
 101 }
 102
 103 /* ************* window matrix ************** */
 104
 105 void ui_block_to_window_fl(const ARegion *ar, uiBlock *block, float *x, float *y)
 106 {
 107         float gx, gy;
 108         int sx, sy, getsizex, getsizey;
 109
 110         getsizex= ar->winrct.xmax-ar->winrct.xmin+1;
 111         getsizey= ar->winrct.ymax-ar->winrct.ymin+1;
 112         sx= ar->winrct.xmin;
 113         sy= ar->winrct.ymin;
 114
 115         gx= *x;
 116         gy= *y;
 117
 118         if(block->panel) {
 119                 gx += block->panel->ofsx;
 120                 gy += block->panel->ofsy;
 121         }
 122
 123         *x= ((float)sx) + ((float)getsizex)*(0.5f+ 0.5f*(gx*block->winmat[0][0]+ gy*block->winmat[1][0]+ block->winmat[3][0]));
 124         *y= ((float)sy) + ((float)getsizey)*(0.5f+ 0.5f*(gx*block->winmat[0][1]+ gy*block->winmat[1][1]+ block->winmat[3][1]));
 125 }
 126
 127 void ui_block_to_window(const ARegion *ar, uiBlock *block, int *x, int *y)
 128 {
 129         float fx, fy;
 130
 131         fx= *x;
 132         fy= *y;
 133
 134         ui_block_to_window_fl(ar, block, &fx, &fy);
 135
 136         *x= (int)(fx+0.5f);
 137         *y= (int)(fy+0.5f);
 138 }
 139
 140 void ui_block_to_window_rct(const ARegion *ar, uiBlock *block, rctf *graph, rcti *winr)
 141 {
 142         rctf tmpr;
 143
 144         tmpr= *graph;
 145         ui_block_to_window_fl(ar, block, &tmpr.xmin, &tmpr.ymin);
 146         ui_block_to_window_fl(ar, block, &tmpr.xmax, &tmpr.ymax);
 147
 148         winr->xmin= tmpr.xmin;
 149         winr->ymin= tmpr.ymin;
 150         winr->xmax= tmpr.xmax;
 151         winr->ymax= tmpr.ymax;
 152 }
 153
 154 void ui_window_to_block_fl(const ARegion *ar, uiBlock *block, float *x, float *y)       /* for mouse cursor */
 155 {
 156         float a, b, c, d, e, f, px, py;
 157         int sx, sy, getsizex, getsizey;
 158
 159         getsizex= ar->winrct.xmax-ar->winrct.xmin+1;
 160         getsizey= ar->winrct.ymax-ar->winrct.ymin+1;
 161         sx= ar->winrct.xmin;
 162         sy= ar->winrct.ymin;
 163
 164         a= 0.5f*((float)getsizex)*block->winmat[0][0];
 165         b= 0.5f*((float)getsizex)*block->winmat[1][0];
 166         c= 0.5f*((float)getsizex)*(1.0f+block->winmat[3][0]);
 167
 168         d= 0.5f*((float)getsizey)*block->winmat[0][1];
 169         e= 0.5f*((float)getsizey)*block->winmat[1][1];
 170         f= 0.5f*((float)getsizey)*(1.0f+block->winmat[3][1]);
 171
 172         px= *x - sx;
 173         py= *y - sy;
 174
 175         *y=  (a*(py-f) + d*(c-px))/(a*e-d*b);
 176         *x= (px- b*(*y)- c)/a;
 177
 178         if(block->panel) {
 179                 *x -= block->panel->ofsx;
 180                 *y -= block->panel->ofsy;
 181         }
 182 }
 183
 184 void ui_window_to_block(const ARegion *ar, uiBlock *block, int *x, int *y)
 185 {
 186         float fx, fy;
 187
 188         fx= *x;
 189         fy= *y;
 190
 191         ui_window_to_block_fl(ar, block, &fx, &fy);
 192
 193         *x= (int)(fx+0.5f);
 194         *y= (int)(fy+0.5f);
 195 }
 196
 197 void ui_window_to_region(const ARegion *ar, int *x, int *y)
 198 {
 199         *x-= ar->winrct.xmin;
 200         *y-= ar->winrct.ymin;
 201 }
 202
 203 /* ******************* block calc ************************* */
 204
 205 void ui_block_translate(uiBlock *block, int x, int y)
 206 {
 207         uiBut *bt;
 208
 209         for(bt= block->buttons.first; bt; bt=bt->next) {
 210                 bt->x1 += x;
 211                 bt->y1 += y;
 212                 bt->x2 += x;
 213                 bt->y2 += y;
 214         }
 215
 216         block->minx += x;
 217         block->miny += y;
 218         block->maxx += x;
 219         block->maxy += y;
 220 }
 221
 222 static void ui_text_bounds_block(uiBlock *block, float offset)
 223 {
 224         uiStyle *style= U.uistyles.first;       // XXX pass on as arg
 225         uiBut *bt;
 226         int i = 0, j, x1addval= offset, nextcol;
 227         int lastcol= 0, col= 0;
 228
 229         uiStyleFontSet(&style->widget);
 230
 231         for(bt= block->buttons.first; bt; bt= bt->next) {
 232                 if(bt->type!=SEPR) {
 233                         //int transopts= ui_translate_buttons();
 234                         //if(bt->type==TEX || bt->type==IDPOIN) transopts= 0;
 235
 236                         j= BLF_width(style->widget.uifont_id, bt->drawstr);
 237
 238                         if(j > i) i = j;
 239                 }
 240
 241                 if(bt->next && bt->x1 < bt->next->x1)
 242                         lastcol++;
 243         }
 244
 245         /* cope with multi collumns */
 246         bt= block->buttons.first;
 247         while(bt) {
 248                 if(bt->next && bt->x1 < bt->next->x1) {
 249                         nextcol= 1;
 250                         col++;
 251                 }
 252                 else nextcol= 0;
 253
 254                 bt->x1 = x1addval;
 255                 bt->x2 = bt->x1 + i + block->bounds;
 256
 257                 if(col == lastcol)
 258                         bt->x2= MAX2(bt->x2, offset + block->minbounds);
 259
 260                 ui_check_but(bt);       // clips text again
 261
 262                 if(nextcol)
 263                         x1addval+= i + block->bounds;
 264
 265                 bt= bt->next;
 266         }
 267 }
 268
 269 void ui_bounds_block(uiBlock *block)
 270 {
 271         uiBut *bt;
 272         int xof;
 273
 274         if(block->buttons.first==NULL) {
 275                 if(block->panel) {
 276                         block->minx= 0.0; block->maxx= block->panel->sizex;
 277                         block->miny= 0.0; block->maxy= block->panel->sizey;
 278                 }
 279         }
 280         else {
 281
 282                 block->minx= block->miny= 10000;
 283                 block->maxx= block->maxy= -10000;
 284
 285                 bt= block->buttons.first;
 286                 while(bt) {
 287                         if(bt->x1 < block->minx) block->minx= bt->x1;
 288                         if(bt->y1 < block->miny) block->miny= bt->y1;
 289
 290                           if(bt->x2 > block->maxx) block->maxx= bt->x2;
 291                         if(bt->y2 > block->maxy) block->maxy= bt->y2;
 292
 293                         bt= bt->next;
 294                 }
 295
 296                 block->minx -= block->bounds;
 297                 block->miny -= block->bounds;
 298                 block->maxx += block->bounds;
 299                 block->maxy += block->bounds;
 300         }
 301
 302         block->maxx= block->minx + MAX2(block->maxx - block->minx, block->minbounds);
 303
 304         /* hardcoded exception... but that one is annoying with larger safety */
 305         bt= block->buttons.first;
 306         if(bt && strncmp(bt->str, "ERROR", 5)==0) xof= 10;
 307         else xof= 40;
 308
 309         block->safety.xmin= block->minx-xof;
 310         block->safety.ymin= block->miny-xof;
 311         block->safety.xmax= block->maxx+xof;
 312         block->safety.ymax= block->maxy+xof;
 313 }
 314
 315 static void ui_centered_bounds_block(const bContext *C, uiBlock *block)
 316 {
 317         wmWindow *window= CTX_wm_window(C);
 318         int xmax, ymax;
 319         int startx, starty;
 320         int width, height;
 321
 322         /* note: this is used for the splash where window bounds event has not been
 323          * updated by ghost, get the window bounds from ghost directly */
 324
 325         // wm_window_get_size(window, &xmax, &ymax);
 326         wm_window_get_size_ghost(window, &xmax, &ymax);
 327
 328         ui_bounds_block(block);
 329
 330         width= block->maxx - block->minx;
 331         height= block->maxy - block->miny;
 332
 333         startx = (xmax * 0.5f) - (width * 0.5f);
 334         starty = (ymax * 0.5f) - (height * 0.5f);
 335
 336         ui_block_translate(block, startx - block->minx, starty - block->miny);
 337
 338         /* now recompute bounds and safety */
 339         ui_bounds_block(block);
 340
 341 }
 342 static void ui_popup_bounds_block(const bContext *C, uiBlock *block, int bounds_calc)
 343 {
 344         wmWindow *window= CTX_wm_window(C);
 345         int startx, starty, endx, endy, width, height, oldwidth, oldheight;
 346         int oldbounds, xmax, ymax;
 347
 348         oldbounds= block->bounds;
 349
 350         /* compute mouse position with user defined offset */
 351         ui_bounds_block(block);
 352
 353         wm_window_get_size(window, &xmax, &ymax);
 354
 355         oldwidth= block->maxx - block->minx;
 356         oldheight= block->maxy - block->miny;
 357
 358         /* first we ensure wide enough text bounds */
 359         if(bounds_calc==UI_BLOCK_BOUNDS_POPUP_MENU) {
 360                 if(block->flag & UI_BLOCK_LOOP) {
 361                         block->bounds= 50;
 362                         ui_text_bounds_block(block, block->minx);
 363                 }
 364         }
 365
 366         /* next we recompute bounds */
 367         block->bounds= oldbounds;
 368         ui_bounds_block(block);
 369
 370         /* and we adjust the position to fit within window */
 371         width= block->maxx - block->minx;
 372         height= block->maxy - block->miny;
 373
 374         /* avoid divide by zero below, caused by calling with no UI, but better not crash */
 375         oldwidth= oldwidth > 0 ? oldwidth : MAX2(1, width);
 376         oldheight= oldheight > 0 ? oldheight : MAX2(1, height);
 377
 378         /* offset block based on mouse position, user offset is scaled
 379            along in case we resized the block in ui_text_bounds_block */
 380         startx= window->eventstate->x + block->minx + (block->mx*width)/oldwidth;
 381         starty= window->eventstate->y + block->miny + (block->my*height)/oldheight;
 382
 383         if(startx<10)
 384                 startx= 10;
 385         if(starty<10)
 386                 starty= 10;
 387
 388         endx= startx+width;
 389         endy= starty+height;
 390
 391         if(endx>xmax) {
 392                 endx= xmax-10;
 393                 startx= endx-width;
 394         }
 395         if(endy>ymax-20) {
 396                 endy= ymax-20;
 397                 starty= endy-height;
 398         }
 399
 400         ui_block_translate(block, startx - block->minx, starty - block->miny);
 401
 402         /* now recompute bounds and safety */
 403         ui_bounds_block(block);
 404 }
 405
 406 /* used for various cases */
 407 void uiBoundsBlock(uiBlock *block, int addval)
 408 {
 409         if(block==NULL)
 410                 return;
 411
 412         block->bounds= addval;
 413         block->dobounds= UI_BLOCK_BOUNDS;
 414 }
 415
 416 /* used for pulldowns */
 417 void uiTextBoundsBlock(uiBlock *block, int addval)
 418 {
 419         block->bounds= addval;
 420         block->dobounds= UI_BLOCK_BOUNDS_TEXT;
 421 }
 422
 423 /* used for block popups */
 424 void uiPopupBoundsBlock(uiBlock *block, int addval, int mx, int my)
 425 {
 426         block->bounds= addval;
 427         block->dobounds= UI_BLOCK_BOUNDS_POPUP_MOUSE;
 428         block->mx= mx;
 429         block->my= my;
 430 }
 431
 432 /* used for menu popups */
 433 void uiMenuPopupBoundsBlock(uiBlock *block, int addval, int mx, int my)
 434 {
 435         block->bounds= addval;
 436         block->dobounds= UI_BLOCK_BOUNDS_POPUP_MENU;
 437         block->mx= mx;
 438         block->my= my;
 439 }
 440
 441 /* used for centered popups, i.e. splash */
 442 void uiCenteredBoundsBlock(uiBlock *block, int addval)
 443 {
 444         block->bounds= addval;
 445         block->dobounds= UI_BLOCK_BOUNDS_POPUP_CENTER;
 446 }
 447
 448 /* ************** LINK LINE DRAWING  ************* */
 449
 450 /* link line drawing is not part of buttons or theme.. so we stick with it here */
 451
 452 static void ui_draw_linkline(uiLinkLine *line)
 453 {
 454         rcti rect;
 455
 456         if(line->from==NULL || line->to==NULL) return;
 457
 458         rect.xmin= (line->from->x1+line->from->x2)/2.0f;
 459         rect.ymin= (line->from->y1+line->from->y2)/2.0f;
 460         rect.xmax= (line->to->x1+line->to->x2)/2.0f;
 461         rect.ymax= (line->to->y1+line->to->y2)/2.0f;
 462
 463         if(line->flag & UI_SELECT)
 464                 glColor3ub(100,100,100);
 465         else
 466                 glColor3ub(0,0,0);
 467
 468         ui_draw_link_bezier(&rect);
 469 }
 470
 471 static void ui_draw_links(uiBlock *block)
 472 {
 473         uiBut *but;
 474         uiLinkLine *line;
 475
 476         but= block->buttons.first;
 477         while(but) {
 478                 if(but->type==LINK && but->link) {
 479                         line= but->link->lines.first;
 480                         while(line) {
 481                                 ui_draw_linkline(line);
 482                                 line= line->next;
 483                         }
 484                 }
 485                 but= but->next;
 486         }
 487 }
 488
 489 /* ************** BLOCK ENDING FUNCTION ************* */
 490
 491 /* NOTE: if but->poin is allocated memory for every defbut, things fail... */
 492 static int ui_but_equals_old(uiBut *but, uiBut *oldbut)
 493 {
 494         /* various properties are being compared here, hopfully sufficient
 495          * to catch all cases, but it is simple to add more checks later */
 496         if(but->retval != oldbut->retval) return 0;
 497         if(but->rnapoin.data != oldbut->rnapoin.data) return 0;
 498         if(but->rnaprop != oldbut->rnaprop)
 499                 if(but->rnaindex != oldbut->rnaindex) return 0;
 500         if(but->func != oldbut->func) return 0;
 501         if(but->funcN != oldbut->funcN) return 0;
 502         if(oldbut->func_arg1 != oldbut && but->func_arg1 != oldbut->func_arg1) return 0;
 503         if(oldbut->func_arg2 != oldbut && but->func_arg2 != oldbut->func_arg2) return 0;
 504         if(!but->funcN && ((but->poin != oldbut->poin && (uiBut*)oldbut->poin != oldbut) || but->pointype != oldbut->pointype)) return 0;
 505         if(but->optype != oldbut->optype) return 0;
 506
 507         return 1;
 508 }
 509
 510 /* oldbut is being inserted in new block, so we use the lines from new button, and replace button pointers */
 511 static void ui_but_update_linklines(uiBlock *block, uiBut *oldbut, uiBut *newbut)
 512 {
 513         uiLinkLine *line;
 514         uiBut *but;
 515
 516         /* if active button is LINK */
 517         if(newbut->type==LINK && newbut->link) {
 518
 519                 SWAP(uiLink *, oldbut->link, newbut->link);
 520
 521                 for(line= oldbut->link->lines.first; line; line= line->next) {
 522                         if(line->to==newbut)
 523                                 line->to= oldbut;
 524                         if(line->from==newbut)
 525                                 line->from= oldbut;
 526                 }
 527         }
 528
 529         /* check all other button links */
 530         for(but= block->buttons.first; but; but= but->next) {
 531                 if(but!=newbut && but->type==LINK && but->link) {
 532                         for(line= but->link->lines.first; line; line= line->next) {
 533                                 if(line->to==newbut)
 534                                         line->to= oldbut;
 535                                 if(line->from==newbut)
 536                                         line->from= oldbut;
 537                         }
 538                 }
 539         }
 540 }
 541
 542 static int ui_but_update_from_old_block(const bContext *C, uiBlock *block, uiBut **butpp)
 543 {
 544         uiBlock *oldblock;
 545         uiBut *oldbut, *but= *butpp;
 546         int found= 0;
 547
 548         oldblock= block->oldblock;
 549         if(!oldblock)
 550                 return found;
 551
 552         for(oldbut=oldblock->buttons.first; oldbut; oldbut=oldbut->next) {
 553                 if(ui_but_equals_old(oldbut, but)) {
 554                         if(oldbut->active) {
 555 #if 0
 556 //                              but->flag= oldbut->flag;
 557 #else
 558                                 /* exception! redalert flag can't be update from old button.
 559                                  * perhaps it should only copy spesific flags rather then all. */
 560 //                              but->flag= (oldbut->flag & ~UI_BUT_REDALERT) | (but->flag & UI_BUT_REDALERT);
 561 #endif
 562 //                              but->active= oldbut->active;
 563 //                              but->pos= oldbut->pos;
 564 //                              but->ofs= oldbut->ofs;
 565 //                              but->editstr= oldbut->editstr;
 566 //                              but->editval= oldbut->editval;
 567 //                              but->editvec= oldbut->editvec;
 568 //                              but->editcoba= oldbut->editcoba;
 569 //                              but->editcumap= oldbut->editcumap;
 570 //                              but->selsta= oldbut->selsta;
 571 //                              but->selend= oldbut->selend;
 572 //                              but->softmin= oldbut->softmin;
 573 //                              but->softmax= oldbut->softmax;
 574 //                              but->linkto[0]= oldbut->linkto[0];
 575 //                              but->linkto[1]= oldbut->linkto[1];
 576                                 found= 1;
 577 //                              oldbut->active= NULL;
 578
 579                                 /* move button over from oldblock to new block */
 580                                 BLI_remlink(&oldblock->buttons, oldbut);
 581                                 BLI_insertlink(&block->buttons, but, oldbut);
 582                                 oldbut->block= block;
 583                                 *butpp= oldbut;
 584
 585                                 /* still stuff needs to be copied */
 586                                 oldbut->x1= but->x1; oldbut->y1= but->y1;
 587                                 oldbut->x2= but->x2; oldbut->y2= but->y2;
 588                                 oldbut->context= but->context; /* set by Layout */
 589
 590                                 /* typically the same pointers, but not on undo/redo */
 591                                 /* XXX some menu buttons store button itself in but->poin. Ugly */
 592                                 if(oldbut->poin != (char *)oldbut) {
 593                                         SWAP(char *, oldbut->poin, but->poin)
 594                                         SWAP(void *, oldbut->func_argN, but->func_argN)
 595                                 }
 596
 597                                 ui_but_update_linklines(block, oldbut, but);
 598
 599                                 BLI_remlink(&block->buttons, but);
 600                                 ui_free_but(C, but);
 601
 602                                 /* note: if layout hasn't been applied yet, it uses old button pointers... */
 603                         }
 604                         else {
 605                                 /* ensures one button can get activated, and in case the buttons
 606                                  * draw are the same this gives O(1) lookup for each button */
 607                                 BLI_remlink(&oldblock->buttons, oldbut);
 608                                 ui_free_but(C, oldbut);
 609                         }
 610
 611                         break;
 612                 }
 613         }
 614
 615         return found;
 616 }
 617
 618 /* needed for temporarily rename buttons, such as in outliner or fileselect,
 619    they should keep calling uiDefButs to keep them alive */
 620 /* returns 0 when button removed */
 621 int uiButActiveOnly(const bContext *C, uiBlock *block, uiBut *but)
 622 {
 623         uiBlock *oldblock;
 624         uiBut *oldbut;
 625         int activate= 0, found= 0, isactive= 0;
 626
 627         oldblock= block->oldblock;
 628         if(!oldblock)
 629                 activate= 1;
 630         else {
 631                 for(oldbut=oldblock->buttons.first; oldbut; oldbut=oldbut->next) {
 632                         if(ui_but_equals_old(oldbut, but)) {
 633                                 found= 1;
 634
 635                                 if(oldbut->active)
 636                                         isactive= 1;
 637
 638                                 break;
 639                         }
 640                 }
 641         }
 642         if(activate || found==0) {
 643                 ui_button_activate_do( (bContext *)C, CTX_wm_region(C), but);
 644         }
 645         else if(found && isactive==0) {
 646
 647                 BLI_remlink(&block->buttons, but);
 648                 ui_free_but(C, but);
 649                 return 0;
 650         }
 651
 652         return 1;
 653 }
 654
 655 /* assigns automatic keybindings to menu items for fast access
 656  * (underline key in menu) */
 657 static void ui_menu_block_set_keyaccels(uiBlock *block)
 658 {
 659         uiBut *but;
 660
 661         unsigned int meny_key_mask= 0;
 662         unsigned char menu_key;
 663         const char *str_pt;
 664         int pass;
 665         int tot_missing= 0;
 666
 667         /* only do it before bounding */
 668         if(block->minx != block->maxx)
 669                 return;
 670
 671         for(pass=0; pass<2; pass++) {
 672                 /* 2 Passes, on for first letter only, second for any letter if first fails
 673                  * fun first pass on all buttons so first word chars always get first priority */
 674
 675                 for(but=block->buttons.first; but; but=but->next) {
 676                         if(!ELEM4(but->type, BUT, MENU, BLOCK, PULLDOWN) || (but->flag & UI_HIDDEN)) {
 677                                 /* pass */
 678                         }
 679                         else if(but->menu_key=='\0') {
 680                                 if(but->str) {
 681                                         for(str_pt= but->str; *str_pt; ) {
 682                                                 menu_key= tolower(*str_pt);
 683                                                 if((menu_key >= 'a' && menu_key <= 'z') && !(meny_key_mask & 1<<(menu_key-'a'))) {
 684                                                         meny_key_mask |= 1<<(menu_key-'a');
 685                                                         break;
 686                                                 }
 687
 688                                                 if(pass==0) {
 689                                                         /* Skip to next delimeter on first pass (be picky) */
 690                                                         while(isalpha(*str_pt))
 691                                                                 str_pt++;
 692
 693                                                         if(*str_pt)
 694                                                                 str_pt++;
 695                                                 }
 696                                                 else {
 697                                                         /* just step over every char second pass and find first usable key */
 698                                                         str_pt++;
 699                                                 }
 700                                         }
 701
 702                                         if(*str_pt) {
 703                                                 but->menu_key= menu_key;
 704                                         }
 705                                         else {
 706                                                 /* run second pass */
 707                                                 tot_missing++;
 708                                         }
 709
 710                                         /* if all keys have been used just exit, unlikely */
 711                                         if(meny_key_mask == (1<<26)-1) {
 712                                                 return;
 713                                         }
 714                                 }
 715                         }
 716                 }
 717
 718                 /* check if second pass is needed */
 719                 if(!tot_missing) {
 720                         break;
 721                 }
 722         }
 723 }
 724
 725
 726 static void ui_menu_block_set_keymaps(const bContext *C, uiBlock *block)
 727 {
 728         uiBut *but;
 729         IDProperty *prop;
 730         char buf[512];
 731
 732         /* only do it before bounding */
 733         if(block->minx != block->maxx)
 734                 return;
 735
 736         for(but=block->buttons.first; but; but=but->next) {
 737                 if(but->optype) {
 738                         prop= (but->opptr)? but->opptr->data: NULL;
 739
 740                         if(WM_key_event_operator_string(C, but->optype->idname, but->opcontext, prop, buf, sizeof(buf))) {
 741                                 char *butstr_orig= BLI_strdup(but->str);
 742                                 BLI_snprintf(but->strdata, sizeof(but->strdata), "%s|%s", butstr_orig, buf);
 743                                 MEM_freeN(butstr_orig);
 744                                 but->str= but->strdata;
 745                                 ui_check_but(but);
 746                         }
 747                 }
 748         }
 749 }
 750
 751 void uiEndBlock(const bContext *C, uiBlock *block)
 752 {
 753         uiBut *but;
 754         Scene *scene= CTX_data_scene(C);
 755
 756         /* inherit flags from 'old' buttons that was drawn here previous, based
 757          * on matching buttons, we need this to make button event handling non
 758          * blocking, while still alowing buttons to be remade each redraw as it
 759          * is expected by blender code */
 760         for(but=block->buttons.first; but; but=but->next) {
 761                 if(ui_but_update_from_old_block(C, block, &but))
 762                         ui_check_but(but);
 763
 764                 /* temp? Proper check for greying out */
 765                 if(but->optype) {
 766                         wmOperatorType *ot= but->optype;
 767
 768                         if(but->context)
 769                                 CTX_store_set((bContext*)C, but->context);
 770
 771                         if(ot == NULL || WM_operator_poll_context((bContext*)C, ot, but->opcontext)==0) {
 772                                 but->flag |= UI_BUT_DISABLED;
 773                                 but->lock = 1;
 774                         }
 775
 776                         if(but->context)
 777                                 CTX_store_set((bContext*)C, NULL);
 778                 }
 779
 780                 ui_but_anim_flag(but, (scene)? scene->r.cfra: 0.0f);
 781         }
 782
 783         if(block->oldblock) {
 784                 block->auto_open= block->oldblock->auto_open;
 785                 block->auto_open_last= block->oldblock->auto_open_last;
 786                 block->tooltipdisabled= block->oldblock->tooltipdisabled;
 787
 788                 block->oldblock= NULL;
 789         }
 790
 791         /* handle pending stuff */
 792         if(block->layouts.first) uiBlockLayoutResolve(block, NULL, NULL);
 793         ui_block_do_align(block);
 794         if((block->flag & UI_BLOCK_LOOP) && (block->flag & UI_BLOCK_NUMSELECT)) ui_menu_block_set_keyaccels(block); /* could use a different flag to check */
 795         if(block->flag & UI_BLOCK_LOOP) ui_menu_block_set_keymaps(C, block);
 796
 797         /* after keymaps! */
 798         if(block->dobounds == UI_BLOCK_BOUNDS) ui_bounds_block(block);
 799         else if(block->dobounds == UI_BLOCK_BOUNDS_TEXT) ui_text_bounds_block(block, 0.0f);
 800         else if(block->dobounds == UI_BLOCK_BOUNDS_POPUP_CENTER) ui_centered_bounds_block(C, block);
 801         else if(block->dobounds) ui_popup_bounds_block(C, block, block->dobounds);
 802
 803         if(block->minx==0.0f && block->maxx==0.0f) uiBoundsBlock(block, 0);
 804         if(block->flag & UI_BUT_ALIGN) uiBlockEndAlign(block);
 805
 806         block->endblock= 1;
 807 }
 808
 809 /* ************** BLOCK DRAWING FUNCTION ************* */
 810
 811 void ui_fontscale(short *points, float aspect)
 812 {
 813         if(aspect < 0.9f || aspect > 1.1f) {
 814                 float pointsf= *points;
 815
 816                 /* for some reason scaling fonts goes too fast compared to widget size */
 817                 aspect= sqrt(aspect);
 818                 pointsf /= aspect;
 819
 820                 if(aspect > 1.0f)
 821                         *points= ceilf(pointsf);
 822                 else
 823                         *points= floorf(pointsf);
 824         }
 825 }
 826
 827 /* project button or block (but==NULL) to pixels in regionspace */
 828 static void ui_but_to_pixelrect(rcti *rect, const ARegion *ar, uiBlock *block, uiBut *but)
 829 {
 830         float gx, gy;
 831         float getsizex, getsizey;
 832
 833         getsizex= ar->winx;
 834         getsizey= ar->winy;
 835
 836         gx= (but?but->x1:block->minx) + (block->panel?block->panel->ofsx:0.0f);
 837         gy= (but?but->y1:block->miny) + (block->panel?block->panel->ofsy:0.0f);
 838
 839         rect->xmin= floorf(getsizex*(0.5f+ 0.5f*(gx*block->winmat[0][0]+ gy*block->winmat[1][0]+ block->winmat[3][0])));
 840         rect->ymin= floorf(getsizey*(0.5f+ 0.5f*(gx*block->winmat[0][1]+ gy*block->winmat[1][1]+ block->winmat[3][1])));
 841
 842         gx= (but?but->x2:block->maxx) + (block->panel?block->panel->ofsx:0.0f);
 843         gy= (but?but->y2:block->maxy) + (block->panel?block->panel->ofsy:0.0f);
 844
 845         rect->xmax= floorf(getsizex*(0.5f+ 0.5f*(gx*block->winmat[0][0]+ gy*block->winmat[1][0]+ block->winmat[3][0])));
 846         rect->ymax= floorf(getsizey*(0.5f+ 0.5f*(gx*block->winmat[0][1]+ gy*block->winmat[1][1]+ block->winmat[3][1])));
 847
 848 }
 849
 850 /* uses local copy of style, to scale things down, and allow widgets to change stuff */
 851 void uiDrawBlock(const bContext *C, uiBlock *block)
 852 {
 853         uiStyle style= *((uiStyle *)U.uistyles.first);  // XXX pass on as arg
 854         ARegion *ar;
 855         uiBut *but;
 856         rcti rect;
 857
 858         /* get menu region or area region */
 859         ar= CTX_wm_menu(C);
 860         if(!ar)
 861                 ar= CTX_wm_region(C);
 862
 863         if(!block->endblock)
 864                 uiEndBlock(C, block);
 865
 866         /* we set this only once */
 867         glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
 868
 869         /* scale fonts */
 870         ui_fontscale(&style.paneltitle.points, block->aspect);
 871         ui_fontscale(&style.grouplabel.points, block->aspect);
 872         ui_fontscale(&style.widgetlabel.points, block->aspect);
 873         ui_fontscale(&style.widget.points, block->aspect);
 874
 875         /* scale block min/max to rect */
 876         ui_but_to_pixelrect(&rect, ar, block, NULL);
 877
 878         /* pixel space for AA widgets */
 879         glMatrixMode(GL_PROJECTION);
 880         glPushMatrix();
 881         glMatrixMode(GL_MODELVIEW);
 882         glPushMatrix();
 883         glLoadIdentity();
 884
 885         wmOrtho2(-0.01f, ar->winx-0.01f, -0.01f, ar->winy-0.01f);
 886
 887         /* back */
 888         if(block->flag & UI_BLOCK_LOOP)
 889                 ui_draw_menu_back(&style, block, &rect);
 890         else if(block->panel)
 891                 ui_draw_aligned_panel(&style, block, &rect);
 892
 893         /* widgets */
 894         for(but= block->buttons.first; but; but= but->next) {
 895                 ui_but_to_pixelrect(&rect, ar, block, but);
 896
 897                 if(!(but->flag & UI_HIDDEN) &&
 898                         /* XXX: figure out why invalid coordinates happen when closing render window */
 899                         /* and material preview is redrawn in main window (temp fix for bug #23848) */
 900                         rect.xmin < rect.xmax && rect.ymin < rect.ymax)
 901                         ui_draw_but(C, ar, &style, but, &rect);
 902         }
 903
 904         /* restore matrix */
 905         glMatrixMode(GL_PROJECTION);
 906         glPopMatrix();
 907         glMatrixMode(GL_MODELVIEW);
 908         glPopMatrix();
 909
 910         ui_draw_links(block);
 911 }
 912
 913 /* ************* EVENTS ************* */
 914
 915 static void ui_is_but_sel(uiBut *but)
 916 {
 917         double value; /* only initialized when needed, to avoid calling when not used */
 918         short push=0, true=1;
 919
 920         if(ELEM3(but->type, TOGN, ICONTOGN, OPTIONN)) true= 0;
 921
 922         if( but->bit ) {
 923                 int lvalue;
 924                 value= ui_get_but_val(but);
 925                 lvalue= (int)value;
 926                 if( BTST(lvalue, (but->bitnr)) ) push= true;
 927                 else push= !true;
 928         }
 929         else {
 930                 switch(but->type) {
 931                 case BUT:
 932                         push= 2;
 933                         break;
 934                 case HOTKEYEVT:
 935                 case KEYEVT:
 936                         push= 2;
 937                         break;
 938                 case TOGBUT:
 939                 case TOG:
 940                 case TOGR:
 941                 case TOG3:
 942                 case BUT_TOGDUAL:
 943                 case ICONTOG:
 944                 case OPTION:
 945                         value= ui_get_but_val(but);
 946                         if(value != (double)but->hardmin) push= 1;
 947                         break;
 948                 case ICONTOGN:
 949                 case TOGN:
 950                 case OPTIONN:
 951                         value= ui_get_but_val(but);
 952                         if(value==0.0) push= 1;
 953                         break;
 954                 case ROW:
 955                 case LISTROW:
 956                         value= ui_get_but_val(but);
 957                         /* support for rna enum buts */
 958                         if(but->rnaprop && (RNA_property_flag(but->rnaprop) & PROP_ENUM_FLAG)) {
 959                                 if((int)value & (int)but->hardmax) push= 1;
 960                         }
 961                         else {
 962                                 if(value == (double)but->hardmax) push= 1;
 963                         }
 964                         break;
 965                 case COL:
 966                         push= 2;
 967                         break;
 968                 default:
 969                         push= 2;
 970                         break;
 971                 }
 972         }
 973
 974         if(push==2);
 975         else if(push==1) but->flag |= UI_SELECT;
 976         else but->flag &= ~UI_SELECT;
 977 }
 978
 979 static uiBut *ui_find_inlink(uiBlock *block, void *poin)
 980 {
 981         uiBut *but;
 982
 983         but= block->buttons.first;
 984         while(but) {
 985                 if(but->type==INLINK) {
 986                         if(but->poin == poin) return but;
 987                 }
 988                 but= but->next;
 989         }
 990         return NULL;
 991 }
 992
 993 static void ui_add_link_line(ListBase *listb, uiBut *but, uiBut *bt)
 994 {
 995         uiLinkLine *line;
 996
 997         line= MEM_callocN(sizeof(uiLinkLine), "linkline");
 998         BLI_addtail(listb, line);
 999         line->from= but;
1000         line->to= bt;
1001 }
1002
1003 uiBut *uiFindInlink(uiBlock *block, void *poin)
1004 {
1005         return ui_find_inlink(block, poin);
1006 }
1007
1008 void uiComposeLinks(uiBlock *block)
1009 {
1010         uiBut *but, *bt;
1011         uiLink *link;
1012         void ***ppoin;
1013         int a;
1014
1015         but= block->buttons.first;
1016         while(but) {
1017                 if(but->type==LINK) {
1018                         link= but->link;
1019
1020                         /* for all pointers in the array */
1021                         if(link) {
1022                                 if(link->ppoin) {
1023                                         ppoin= link->ppoin;
1024                                         for(a=0; a < *(link->totlink); a++) {
1025                                                 bt= ui_find_inlink(block, (*ppoin)[a] );
1026                                                 if(bt) {
1027                                                         ui_add_link_line(&link->lines, but, bt);
1028                                                 }
1029                                         }
1030                                 }
1031                                 else if(link->poin) {
1032                                         bt= ui_find_inlink(block, *(link->poin) );
1033                                         if(bt) {
1034                                                 ui_add_link_line(&link->lines, but, bt);
1035                                         }
1036                                 }
1037                         }
1038                 }
1039                 but= but->next;
1040         }
1041 }
1042
1043
1044 /* ************************************************ */
1045
1046 void uiBlockSetButLock(uiBlock *block, int val, const char *lockstr)
1047 {
1048         if(val) {
1049                 block->lock= val ? 1:0;
1050                 block->lockstr= lockstr;
1051         }
1052 }
1053
1054 void uiBlockClearButLock(uiBlock *block)
1055 {
1056         block->lock= 0;
1057         block->lockstr= NULL;
1058 }
1059
1060 /* *************************************************************** */
1061
1062 void ui_delete_linkline(uiLinkLine *line, uiBut *but)
1063 {
1064         uiLink *link;
1065         int a, b;
1066
1067         BLI_remlink(&but->link->lines, line);
1068
1069         link= line->from->link;
1070
1071         /* are there more pointers allowed? */
1072         if(link->ppoin) {
1073
1074                 if(*(link->totlink)==1) {
1075                         *(link->totlink)= 0;
1076                         MEM_freeN(*(link->ppoin));
1077                         *(link->ppoin)= NULL;
1078                 }
1079                 else {
1080                         b= 0;
1081                         for(a=0; a< (*(link->totlink)); a++) {
1082
1083                                 if( (*(link->ppoin))[a] != line->to->poin ) {
1084                                         (*(link->ppoin))[b]= (*(link->ppoin))[a];
1085                                         b++;
1086                                 }
1087                         }
1088                         (*(link->totlink))--;
1089                 }
1090         }
1091         else {
1092                 *(link->poin)= NULL;
1093         }
1094
1095         MEM_freeN(line);
1096         //REDRAW
1097 }
1098
1099 /* *********************** data get/set ***********************
1100  * this either works with the pointed to data, or can work with
1101  * an edit override pointer while dragging for example */
1102
1103 /* for buttons pointing to color for example */
1104 void ui_get_but_vectorf(uiBut *but, float *vec)
1105 {
1106         PropertyRNA *prop;
1107         int a, tot;
1108
1109         if(but->editvec) {
1110                 VECCOPY(vec, but->editvec);
1111         }
1112
1113         if(but->rnaprop) {
1114                 prop= but->rnaprop;
1115
1116                 vec[0]= vec[1]= vec[2]= 0.0f;
1117
1118                 if(RNA_property_type(prop) == PROP_FLOAT) {
1119                         tot= RNA_property_array_length(&but->rnapoin, prop);
1120                         tot= MIN2(tot, 3);
1121
1122                         for(a=0; a<tot; a++)
1123                                 vec[a]= RNA_property_float_get_index(&but->rnapoin, prop, a);
1124                 }
1125         }
1126         else if(but->pointype == CHA) {
1127                 char *cp= (char *)but->poin;
1128                 vec[0]= ((float)cp[0])/255.0f;
1129                 vec[1]= ((float)cp[1])/255.0f;
1130                 vec[2]= ((float)cp[2])/255.0f;
1131         }
1132         else if(but->pointype == FLO) {
1133                 float *fp= (float *)but->poin;
1134                 VECCOPY(vec, fp);
1135         }
1136         else {
1137                 if (but->editvec==NULL) {
1138                         fprintf(stderr, "ui_get_but_vectorf: can't get color, should never happen\n");
1139                         vec[0]= vec[1]= vec[2]= 0.0f;
1140                 }
1141         }
1142 }
1143
1144 /* for buttons pointing to color for example */
1145 void ui_set_but_vectorf(uiBut *but, float *vec)
1146 {
1147         PropertyRNA *prop;
1148         int a, tot;
1149
1150         if(but->editvec) {
1151                 VECCOPY(but->editvec, vec);
1152         }
1153
1154         if(but->rnaprop) {
1155                 prop= but->rnaprop;
1156
1157                 if(RNA_property_type(prop) == PROP_FLOAT) {
1158                         tot= RNA_property_array_length(&but->rnapoin, prop);
1159                         tot= MIN2(tot, 3);
1160
1161                         for(a=0; a<tot; a++)
1162                                 RNA_property_float_set_index(&but->rnapoin, prop, a, vec[a]);
1163                 }
1164         }
1165         else if(but->pointype == CHA) {
1166                 char *cp= (char *)but->poin;
1167                 cp[0]= (char)(0.5f + vec[0]*255.0f);
1168                 cp[1]= (char)(0.5f + vec[1]*255.0f);
1169                 cp[2]= (char)(0.5f + vec[2]*255.0f);
1170         }
1171         else if(but->pointype == FLO) {
1172                 float *fp= (float *)but->poin;
1173                 VECCOPY(fp, vec);
1174         }
1175 }
1176
1177 int ui_is_but_float(uiBut *but)
1178 {
1179         if(but->pointype==FLO && but->poin)
1180                 return 1;
1181
1182         if(but->rnaprop && RNA_property_type(but->rnaprop) == PROP_FLOAT)
1183                 return 1;
1184
1185         return 0;
1186 }
1187
1188 int ui_is_but_unit(uiBut *but)
1189 {
1190         Scene *scene= CTX_data_scene((bContext *)but->block->evil_C);
1191         int unit_type= uiButGetUnitType(but);
1192
1193         if(unit_type == PROP_UNIT_NONE)
1194                 return 0;
1195
1196 #if 1 // removed so angle buttons get correct snapping
1197         if (scene->unit.system_rotation == USER_UNIT_ROT_RADIANS && unit_type == PROP_UNIT_ROTATION)
1198                 return 0;
1199 #endif
1200
1201         /* for now disable time unit conversion */
1202         if (unit_type == PROP_UNIT_TIME)
1203                 return 0;
1204
1205         if (scene->unit.system == USER_UNIT_NONE) {
1206                 if (unit_type != PROP_UNIT_ROTATION) {
1207                         return 0;
1208                 }
1209         }
1210
1211         return 1;
1212 }
1213
1214 int ui_is_but_rna_valid(uiBut *but)
1215 {
1216         if (but->rnaprop==NULL || RNA_struct_contains_property(&but->rnapoin, but->rnaprop)) {
1217                 return TRUE;
1218         }
1219         else {
1220                 printf("property removed %s: %p\n", but->drawstr, but->rnaprop);
1221                 return FALSE;
1222         }
1223 }
1224
1225 double ui_get_but_val(uiBut *but)
1226 {
1227         PropertyRNA *prop;
1228         double value = 0.0;
1229
1230         if(but->editval) { return *(but->editval); }
1231         if(but->poin==NULL && but->rnapoin.data==NULL) return 0.0;
1232
1233         if(but->rnaprop) {
1234                 prop= but->rnaprop;
1235
1236                 switch(RNA_property_type(prop)) {
1237                         case PROP_BOOLEAN:
1238                                 if(RNA_property_array_length(&but->rnapoin, prop))
1239                                         value= RNA_property_boolean_get_index(&but->rnapoin, prop, but->rnaindex);
1240                                 else
1241                                         value= RNA_property_boolean_get(&but->rnapoin, prop);
1242                                 break;
1243                         case PROP_INT:
1244                                 if(RNA_property_array_length(&but->rnapoin, prop))
1245                                         value= RNA_property_int_get_index(&but->rnapoin, prop, but->rnaindex);
1246                                 else
1247                                         value= RNA_property_int_get(&but->rnapoin, prop);
1248                                 break;
1249                         case PROP_FLOAT:
1250                                 if(RNA_property_array_length(&but->rnapoin, prop))
1251                                         value= RNA_property_float_get_index(&but->rnapoin, prop, but->rnaindex);
1252                                 else
1253                                         value= RNA_property_float_get(&but->rnapoin, prop);
1254                                 break;
1255                         case PROP_ENUM:
1256                                 value= RNA_property_enum_get(&but->rnapoin, prop);
1257                                 break;
1258                         default:
1259                                 value= 0.0;
1260                                 break;
1261                 }
1262         }
1263         else if(but->type== HSVSLI) {
1264                 float h, s, v, *fp;
1265
1266                 fp= (but->editvec)? but->editvec: (float *)but->poin;
1267                 rgb_to_hsv(fp[0], fp[1], fp[2], &h, &s, &v);
1268
1269                 switch(but->str[0]) {
1270                         case 'H': value= h; break;
1271                         case 'S': value= s; break;
1272                         case 'V': value= v; break;
1273                 }
1274         }
1275         else if( but->pointype == CHA ) {
1276                 value= *(char *)but->poin;
1277         }
1278         else if( but->pointype == SHO ) {
1279                 value= *(short *)but->poin;
1280         }
1281         else if( but->pointype == INT ) {
1282                 value= *(int *)but->poin;
1283         }
1284         else if( but->pointype == FLO ) {
1285                 value= *(float *)but->poin;
1286         }
1287
1288         return value;
1289 }
1290
1291 void ui_set_but_val(uiBut *but, double value)
1292 {
1293         PropertyRNA *prop;
1294
1295         /* value is a hsv value: convert to rgb */
1296         if(but->rnaprop) {
1297                 prop= but->rnaprop;
1298
1299                 if(RNA_property_editable(&but->rnapoin, prop)) {
1300                         switch(RNA_property_type(prop)) {
1301                                 case PROP_BOOLEAN:
1302                                         if(RNA_property_array_length(&but->rnapoin, prop))
1303                                                 RNA_property_boolean_set_index(&but->rnapoin, prop, but->rnaindex, value);
1304                                         else
1305                                                 RNA_property_boolean_set(&but->rnapoin, prop, value);
1306                                         break;
1307                                 case PROP_INT:
1308                                         if(RNA_property_array_length(&but->rnapoin, prop))
1309                                                 RNA_property_int_set_index(&but->rnapoin, prop, but->rnaindex, (int)value);
1310                                         else
1311                                                 RNA_property_int_set(&but->rnapoin, prop, (int)value);
1312                                         break;
1313                                 case PROP_FLOAT:
1314                                         if(RNA_property_array_length(&but->rnapoin, prop))
1315                                                 RNA_property_float_set_index(&but->rnapoin, prop, but->rnaindex, value);
1316                                         else
1317                                                 RNA_property_float_set(&but->rnapoin, prop, value);
1318                                         break;
1319                                 case PROP_ENUM:
1320                                         if(RNA_property_flag(prop) & PROP_ENUM_FLAG) {
1321                                                 int ivalue= (int)value;
1322                                                 ivalue ^= RNA_property_enum_get(&but->rnapoin, prop); /* toggle for enum/flag buttons */
1323                                                 RNA_property_enum_set(&but->rnapoin, prop, ivalue);
1324                                         }
1325                                         else {
1326                                                 RNA_property_enum_set(&but->rnapoin, prop, value);
1327                                         }
1328                                         break;
1329                                 default:
1330                                         break;
1331                         }
1332                 }
1333         }
1334         else if(but->pointype==0);
1335         else if(but->type==HSVSLI ) {
1336                 float h, s, v, *fp;
1337
1338                 fp= (but->editvec)? but->editvec: (float *)but->poin;
1339                 rgb_to_hsv(fp[0], fp[1], fp[2], &h, &s, &v);
1340
1341                 switch(but->str[0]) {
1342                 case 'H': h= value; break;
1343                 case 'S': s= value; break;
1344                 case 'V': v= value; break;
1345                 }
1346
1347                 hsv_to_rgb(h, s, v, fp, fp+1, fp+2);
1348
1349         }
1350         else {
1351                 /* first do rounding */
1352                 if(but->pointype==CHA)
1353                         value= (char)floor(value+0.5);
1354                 else if(but->pointype==SHO ) {
1355                         /* gcc 3.2.1 seems to have problems
1356                          * casting a double like 32772.0 to
1357                          * a short so we cast to an int, then
1358                          to a short */
1359                         int gcckludge;
1360                         gcckludge = (int) floor(value+0.5);
1361                         value= (short)gcckludge;
1362                 }
1363                 else if(but->pointype==INT )
1364                         value= (int)floor(value+0.5);
1365                 else if(but->pointype==FLO ) {
1366                         float fval= (float)value;
1367                         if(fval>= -0.00001f && fval<= 0.00001f) fval= 0.0f;     /* prevent negative zero */
1368                         value= fval;
1369                 }
1370
1371                 /* then set value with possible edit override */
1372                 if(but->editval)
1373                         *but->editval= value;
1374                 else if(but->pointype==CHA)
1375                         *((char *)but->poin)= (char)value;
1376                 else if(but->pointype==SHO)
1377                         *((short *)but->poin)= (short)value;
1378                 else if(but->pointype==INT)
1379                         *((int *)but->poin)= (int)value;
1380                 else if(but->pointype==FLO)
1381                         *((float *)but->poin)= (float)value;
1382         }
1383
1384         /* update select flag */
1385         ui_is_but_sel(but);
1386 }
1387
1388 int ui_get_but_string_max_length(uiBut *but)
1389 {
1390         if(ELEM(but->type, TEX, SEARCH_MENU))
1391                 return but->hardmax;
1392         else if(but->type == IDPOIN)
1393                 return MAX_ID_NAME-2;
1394         else
1395                 return UI_MAX_DRAW_STR;
1396 }
1397
1398 static double ui_get_but_scale_unit(uiBut *but, double value)
1399 {
1400         Scene *scene= CTX_data_scene((bContext *)but->block->evil_C);
1401         int unit_type= uiButGetUnitType(but);
1402
1403         if(unit_type == PROP_UNIT_LENGTH) {
1404                 return value * (double)scene->unit.scale_length;
1405         }
1406         else if(unit_type == PROP_UNIT_AREA) {
1407                 return value * pow(scene->unit.scale_length, 2);
1408         }
1409         else if(unit_type == PROP_UNIT_VOLUME) {
1410                 return value * pow(scene->unit.scale_length, 3);
1411         }
1412         else if(unit_type == PROP_UNIT_TIME) { /* WARNING - using evil_C :| */
1413                 return FRA2TIME(value);
1414         }
1415         else {
1416                 return value;
1417         }
1418 }
1419
1420 /* str will be overwritten */
1421 void ui_convert_to_unit_alt_name(uiBut *but, char *str, int maxlen)
1422 {
1423         if(ui_is_but_unit(but)) {
1424                 int unit_type= uiButGetUnitType(but);
1425                 char *orig_str;
1426                 Scene *scene= CTX_data_scene((bContext *)but->block->evil_C);
1427
1428                 orig_str= MEM_callocN(sizeof(char)*maxlen + 1, "textedit sub str");
1429                 memcpy(orig_str, str, maxlen);
1430
1431                 bUnit_ToUnitAltName(str, maxlen, orig_str, scene->unit.system, unit_type>>16);
1432
1433                 MEM_freeN(orig_str);
1434         }
1435 }
1436
1437 static void ui_get_but_string_unit(uiBut *but, char *str, int len_max, double value, int pad)
1438 {
1439         Scene *scene= CTX_data_scene((bContext *)but->block->evil_C);
1440         int do_split= scene->unit.flag & USER_UNIT_OPT_SPLIT;
1441         int unit_type= uiButGetUnitType(but);
1442         int precision= but->a2;
1443
1444         if(scene->unit.scale_length<0.0001f) scene->unit.scale_length= 1.0f; // XXX do_versions
1445
1446         /* Sanity checks */
1447         if(precision>7)         precision= 7;
1448         else if(precision==0)   precision= 2;
1449
1450         bUnit_AsString(str, len_max, ui_get_but_scale_unit(but, value), precision, scene->unit.system, unit_type>>16, do_split, pad);
1451 }
1452
1453 static float ui_get_but_step_unit(uiBut *but, float step_default)
1454 {
1455         Scene *scene= CTX_data_scene((bContext *)but->block->evil_C);
1456         int unit_type= uiButGetUnitType(but)>>16;
1457         float step;
1458
1459         step = bUnit_ClosestScalar(ui_get_but_scale_unit(but, step_default), scene->unit.system, unit_type);
1460
1461         if(step > 0.0f) { /* -1 is an error value */
1462                 return (float)((double)step/ui_get_but_scale_unit(but, 1.0))*100.0f;
1463         }
1464         else {
1465                 return step_default;
1466         }
1467 }
1468
1469
1470 void ui_get_but_string(uiBut *but, char *str, int maxlen)
1471 {
1472         if(but->rnaprop && ELEM3(but->type, TEX, IDPOIN, SEARCH_MENU)) {
1473                 PropertyType type;
1474                 char *buf= NULL;
1475
1476                 type= RNA_property_type(but->rnaprop);
1477
1478                 if(type == PROP_STRING) {
1479                         /* RNA string */
1480                         buf= RNA_property_string_get_alloc(&but->rnapoin, but->rnaprop, str, maxlen);
1481                 }
1482                 else if(type == PROP_POINTER) {
1483                         /* RNA pointer */
1484                         PointerRNA ptr= RNA_property_pointer_get(&but->rnapoin, but->rnaprop);
1485                         buf= RNA_struct_name_get_alloc(&ptr, str, maxlen);
1486                 }
1487
1488                 if(!buf) {
1489                         str[0] = '\0';
1490                 }
1491                 else if(buf && buf != str) {
1492                         /* string was too long, we have to truncate */
1493                         BLI_strncpy(str, buf, maxlen);
1494                         MEM_freeN(buf);
1495                 }
1496         }
1497         else if(but->type == IDPOIN) {
1498                 /* ID pointer */
1499                 if(but->idpoin_idpp) { /* Can be NULL for ID properties by python */
1500                         ID *id= *(but->idpoin_idpp);
1501                         if(id) {
1502                                 BLI_strncpy(str, id->name+2, maxlen);
1503                                 return;
1504                         }
1505                 }
1506                 str[0] = '\0';
1507                 return;
1508         }
1509         else if(but->type == TEX) {
1510                 /* string */
1511                 BLI_strncpy(str, but->poin, maxlen);
1512                 return;
1513         }
1514         else if(but->type == SEARCH_MENU) {
1515                 /* string */
1516                 BLI_strncpy(str, but->poin, maxlen);
1517                 return;
1518         }
1519         else if(ui_but_anim_expression_get(but, str, maxlen))
1520                 ; /* driver expression */
1521         else {
1522                 /* number editing */
1523                 double value;
1524
1525                 value= ui_get_but_val(but);
1526
1527                 if(ui_is_but_float(but)) {
1528                         if(ui_is_but_unit(but)) {
1529                                 ui_get_but_string_unit(but, str, maxlen, value, 0);
1530                         }
1531                         else {
1532                                 int prec= (int)but->a2;
1533                                 if(prec==0) prec= 3;
1534                                 else CLAMP(prec, 1, 7);
1535
1536                                 BLI_snprintf(str, maxlen, "%.*f", prec, value);
1537                         }
1538                 }
1539                 else
1540                         BLI_snprintf(str, maxlen, "%d", (int)value);
1541         }
1542 }
1543
1544 #ifdef WITH_PYTHON
1545
1546 static int ui_set_but_string_eval_num_unit(bContext *C, uiBut *but, const char *str, double *value)
1547 {
1548         char str_unit_convert[256];
1549         const int unit_type= uiButGetUnitType(but);
1550         Scene *scene= CTX_data_scene((bContext *)but->block->evil_C);
1551
1552         BLI_strncpy(str_unit_convert, str, sizeof(str_unit_convert));
1553
1554         /* ugly, use the draw string to get the value, this could cause problems if it includes some text which resolves to a unit */
1555         bUnit_ReplaceString(str_unit_convert, sizeof(str_unit_convert), but->drawstr, ui_get_but_scale_unit(but, 1.0), scene->unit.system, unit_type>>16);
1556
1557         return (BPY_button_exec(C, str_unit_convert, value, TRUE) != -1);
1558 }
1559
1560 static int ui_set_but_string_eval_num(bContext *C, uiBut *but, const char *str, double *value)
1561 {
1562         int ok= FALSE;
1563
1564         if(str[0] != '\0') {
1565                 int is_unit_but= ui_is_but_unit(but);
1566                 /* only enable verbose if we won't run again with units */
1567                 if(BPY_button_exec(C, str, value, is_unit_but==FALSE) != -1) {
1568                         /* if the value parsed ok without unit conversion this button may still need a unit multiplier */
1569                         if(is_unit_but) {
1570                                 char str_new[128];
1571
1572                                 BLI_snprintf(str_new, sizeof(str_new), "%f", *value);
1573                                 ok= ui_set_but_string_eval_num_unit(C, but, str_new, value);
1574                         }
1575                         else {
1576                                 ok= TRUE; /* parse normal string via py (no unit conversion needed) */
1577                         }
1578                 }
1579                 else if(is_unit_but) {
1580                         /* parse failed, this is a unit but so run replacements and parse again */
1581                         ok= ui_set_but_string_eval_num_unit(C, but, str, value);
1582                 }
1583         }
1584
1585         return ok;
1586 }
1587
1588 #endif // WITH_PYTHON
1589
1590 int ui_set_but_string(bContext *C, uiBut *but, const char *str)
1591 {
1592         if(but->rnaprop && ELEM3(but->type, TEX, IDPOIN, SEARCH_MENU)) {
1593                 if(RNA_property_editable(&but->rnapoin, but->rnaprop)) {
1594                         PropertyType type;
1595
1596                         type= RNA_property_type(but->rnaprop);
1597
1598                         if(type == PROP_STRING) {
1599                                 /* RNA string */
1600                                 RNA_property_string_set(&but->rnapoin, but->rnaprop, str);
1601                                 return 1;
1602                         }
1603                         else if(type == PROP_POINTER) {
1604                                 /* RNA pointer */
1605                                 PointerRNA ptr, rptr;
1606                                 PropertyRNA *prop;
1607
1608                                 if(str == NULL || str[0] == '\0') {
1609                                         RNA_property_pointer_set(&but->rnapoin, but->rnaprop, PointerRNA_NULL);
1610                                         return 1;
1611                                 }
1612                                 else {
1613                                         ptr= but->rnasearchpoin;
1614                                         prop= but->rnasearchprop;
1615
1616                                         if(prop && RNA_property_collection_lookup_string(&ptr, prop, str, &rptr))
1617                                                 RNA_property_pointer_set(&but->rnapoin, but->rnaprop, rptr);
1618
1619                                         return 1;
1620                                 }
1621
1622                                 return 0;
1623                         }
1624                 }
1625         }
1626         else if(but->type == IDPOIN) {
1627                 /* ID pointer */
1628                 but->idpoin_func(C, str, but->idpoin_idpp);
1629                 return 1;
1630         }
1631         else if(but->type == TEX) {
1632                 /* string */
1633                 BLI_strncpy(but->poin, str, but->hardmax);
1634                 return 1;
1635         }
1636         else if(but->type == SEARCH_MENU) {
1637                 /* string */
1638                 BLI_strncpy(but->poin, str, but->hardmax);
1639                 return 1;
1640         }
1641         else if(ui_but_anim_expression_set(but, str)) {
1642                 /* driver expression */
1643                 return 1;
1644         }
1645         else {
1646                 /* number editing */
1647                 double value;
1648
1649 #ifdef WITH_PYTHON
1650                 if(ui_set_but_string_eval_num(C, but, str, &value) == FALSE) {
1651                         return 0;
1652                 }
1653 #else
1654                 value= atof(str);
1655 #endif // WITH_PYTHON
1656
1657                 if(!ui_is_but_float(but)) value= (int)floor(value + 0.5);
1658                 if(but->type==NUMABS) value= fabs(value);
1659
1660                 /* not that we use hard limits here */
1661                 if(value < (double)but->hardmin) value= but->hardmin;
1662                 if(value > (double)but->hardmax) value= but->hardmax;
1663
1664                 ui_set_but_val(but, value);
1665                 return 1;
1666         }
1667
1668         return 0;
1669 }
1670
1671 void ui_set_but_default(bContext *C, uiBut *but, short all)
1672 {
1673         /* if there is a valid property that is editable... */
1674         if (but->rnapoin.data && but->rnaprop && RNA_property_editable(&but->rnapoin, but->rnaprop)) {
1675                 int index = (all)? -1 : but->rnaindex;
1676
1677                 if(RNA_property_reset(&but->rnapoin, but->rnaprop, index)) {
1678                         /* perform updates required for this property */
1679                         RNA_property_update(C, &but->rnapoin, but->rnaprop);
1680                 }
1681         }
1682 }
1683
1684 static double soft_range_round_up(double value, double max)
1685 {
1686         /* round up to .., 0.1, 0.2, 0.5, 1, 2, 5, 10, 20, 50, .. */
1687         double newmax= pow(10.0, ceil(log(value)/log(10.0)));
1688
1689         if(newmax*0.2 >= max && newmax*0.2 >= value)
1690                 return newmax*0.2;
1691         else if(newmax*0.5 >= max && newmax*0.5 >= value)
1692                 return newmax*0.5;
1693         else
1694                 return newmax;
1695 }
1696
1697 static double soft_range_round_down(double value, double max)
1698 {
1699         /* round down to .., 0.1, 0.2, 0.5, 1, 2, 5, 10, 20, 50, .. */
1700         double newmax= pow(10.0, floor(log(value)/log(10.0)));
1701
1702         if(newmax*5.0 <= max && newmax*5.0 <= value)
1703                 return newmax*5.0;
1704         else if(newmax*2.0 <= max && newmax*2.0 <= value)
1705                 return newmax*2.0;
1706         else
1707                 return newmax;
1708 }
1709
1710 void ui_set_but_soft_range(uiBut *but, double value)
1711 {
1712         PropertyType type;
1713         double softmin, softmax /*, step, precision*/;
1714
1715         if(but->rnaprop) {
1716                 type= RNA_property_type(but->rnaprop);
1717
1718                 /* clamp button range to something reasonable in case
1719                  * we get -inf/inf from RNA properties */
1720                 if(type == PROP_INT) {
1721                         int imin, imax, istep;
1722
1723                         RNA_property_int_ui_range(&but->rnapoin, but->rnaprop, &imin, &imax, &istep);
1724                         softmin= (imin == INT_MIN)? -1e4: imin;
1725                         softmax= (imin == INT_MAX)? 1e4: imax;
1726                         /*step= istep;*/ /*UNUSED*/
1727                         /*precision= 1;*/ /*UNUSED*/
1728                 }
1729                 else if(type == PROP_FLOAT) {
1730                         float fmin, fmax, fstep, fprecision;
1731
1732                         RNA_property_float_ui_range(&but->rnapoin, but->rnaprop, &fmin, &fmax, &fstep, &fprecision);
1733                         softmin= (fmin == -FLT_MAX)? (float)-1e4: fmin;
1734                         softmax= (fmax == FLT_MAX)? (float)1e4: fmax;
1735                         /*step= fstep;*/ /*UNUSED*/
1736                         /*precision= fprecision;*/ /*UNUSED*/
1737                 }
1738                 else
1739                         return;
1740
1741                 /* if the value goes out of the soft/max range, adapt the range */
1742                 if(value+1e-10 < softmin) {
1743                         if(value < 0.0)
1744                                 softmin= -soft_range_round_up(-value, -softmin);
1745                         else
1746                                 softmin= soft_range_round_down(value, softmin);
1747
1748                         if(softmin < (double)but->hardmin)
1749                                 softmin= (double)but->hardmin;
1750                 }
1751                 else if(value-1e-10 > softmax) {
1752                         if(value < 0.0)
1753                                 softmax= -soft_range_round_down(-value, -softmax);
1754                         else
1755                                 softmax= soft_range_round_up(value, softmax);
1756
1757                         if(softmax > (double)but->hardmax)
1758                                 softmax= but->hardmax;
1759                 }
1760
1761                 but->softmin= softmin;
1762                 but->softmax= softmax;
1763         }
1764 }
1765
1766 /* ******************* Free ********************/
1767
1768 static void ui_free_link(uiLink *link)
1769 {
1770         if(link) {
1771                 BLI_freelistN(&link->lines);
1772                 MEM_freeN(link);
1773         }
1774 }
1775
1776 /* can be called with C==NULL */
1777 static void ui_free_but(const bContext *C, uiBut *but)
1778 {
1779         if(but->opptr) {
1780                 WM_operator_properties_free(but->opptr);
1781                 MEM_freeN(but->opptr);
1782         }
1783         if(but->func_argN) MEM_freeN(but->func_argN);
1784         if(but->active) {
1785                 /* XXX solve later, buttons should be free-able without context ideally,
1786                    however they may have open tooltips or popup windows, which need to
1787                    be closed using a context pointer */
1788                 if(C)
1789                         ui_button_active_free(C, but);
1790                 else
1791                         if(but->active)
1792                                 MEM_freeN(but->active);
1793         }
1794         if(but->str && but->str != but->strdata) MEM_freeN(but->str);
1795         ui_free_link(but->link);
1796
1797         MEM_freeN(but);
1798 }
1799
1800 /* can be called with C==NULL */
1801 void uiFreeBlock(const bContext *C, uiBlock *block)
1802 {
1803         uiBut *but;
1804
1805         while( (but= block->buttons.first) ) {
1806                 BLI_remlink(&block->buttons, but);
1807                 ui_free_but(C, but);
1808         }
1809
1810         if(block->func_argN)
1811                 MEM_freeN(block->func_argN);
1812
1813         CTX_store_free_list(&block->contexts);
1814
1815         BLI_freelistN(&block->saferct);
1816
1817         MEM_freeN(block);
1818 }
1819
1820 /* can be called with C==NULL */
1821 void uiFreeBlocks(const bContext *C, ListBase *lb)
1822 {
1823         uiBlock *block;
1824
1825         while( (block= lb->first) ) {
1826                 BLI_remlink(lb, block);
1827                 uiFreeBlock(C, block);
1828         }
1829 }
1830
1831 void uiFreeInactiveBlocks(const bContext *C, ListBase *lb)
1832 {
1833         uiBlock *block, *nextblock;
1834
1835         for(block=lb->first; block; block=nextblock) {
1836                 nextblock= block->next;
1837
1838                 if(!block->handle) {
1839                         if(!block->active) {
1840                                 BLI_remlink(lb, block);
1841                                 uiFreeBlock(C, block);
1842                         }
1843                         else
1844                                 block->active= 0;
1845                 }
1846         }
1847 }
1848
1849 void uiBlockSetRegion(uiBlock *block, ARegion *region)
1850 {
1851         ListBase *lb;
1852         uiBlock *oldblock= NULL;
1853
1854         lb= &region->uiblocks;
1855
1856         /* each listbase only has one block with this name, free block
1857          * if is already there so it can be rebuilt from scratch */
1858         if(lb) {
1859                 for (oldblock= lb->first; oldblock; oldblock= oldblock->next)
1860                         if (BLI_streq(oldblock->name, block->name))
1861                                 break;
1862
1863                 if (oldblock) {
1864                         oldblock->active= 0;
1865                         oldblock->panel= NULL;
1866                 }
1867         }
1868
1869         block->oldblock= oldblock;
1870
1871         /* at the beginning of the list! for dynamical menus/blocks */
1872         if(lb)
1873                 BLI_addhead(lb, block);
1874 }
1875
1876 uiBlock *uiBeginBlock(const bContext *C, ARegion *region, const char *name, short dt)
1877 {
1878         uiBlock *block;
1879         wmWindow *window;
1880         Scene *scn;
1881         int getsizex, getsizey;
1882
1883         window= CTX_wm_window(C);
1884         scn = CTX_data_scene(C);
1885
1886         block= MEM_callocN(sizeof(uiBlock), "uiBlock");
1887         block->active= 1;
1888         block->dt= dt;
1889         block->evil_C= (void*)C; // XXX
1890         if (scn) block->color_profile= (scn->r.color_mgt_flag & R_COLOR_MANAGEMENT);
1891         BLI_strncpy(block->name, name, sizeof(block->name));
1892
1893         if(region)
1894                 uiBlockSetRegion(block, region);
1895
1896         /* window matrix and aspect */
1897         if(region && region->swinid) {
1898                 wm_subwindow_getmatrix(window, region->swinid, block->winmat);
1899                 wm_subwindow_getsize(window, region->swinid, &getsizex, &getsizey);
1900
1901                 /* TODO - investigate why block->winmat[0][0] is negative
1902                  * in the image view when viewRedrawForce is called */
1903                 block->aspect= 2.0/fabs( (getsizex)*block->winmat[0][0]);
1904         }
1905         else {
1906                 /* no subwindow created yet, for menus for example, so we
1907                  * use the main window instead, since buttons are created
1908                  * there anyway */
1909                 wm_subwindow_getmatrix(window, window->screen->mainwin, block->winmat);
1910                 wm_subwindow_getsize(window, window->screen->mainwin, &getsizex, &getsizey);
1911
1912                 block->aspect= 2.0/fabs(getsizex*block->winmat[0][0]);
1913                 block->auto_open= 2;
1914                 block->flag |= UI_BLOCK_LOOP; /* tag as menu */
1915         }
1916
1917         return block;
1918 }
1919
1920 uiBlock *uiGetBlock(const char *name, ARegion *ar)
1921 {
1922         return BLI_findstring(&ar->uiblocks, name, offsetof(uiBlock, name));
1923 }
1924
1925 void uiBlockSetEmboss(uiBlock *block, char dt)
1926 {
1927         block->dt= dt;
1928 }
1929
1930 void ui_check_but(uiBut *but)
1931 {
1932         /* if something changed in the button */
1933         double value;
1934 //      float okwidth; // UNUSED
1935 //      int transopts= ui_translate_buttons();
1936
1937         ui_is_but_sel(but);
1938
1939 //      if(but->type==TEX || but->type==IDPOIN) transopts= 0;
1940
1941         /* only update soft range while not editing */
1942         if(but->rnaprop && !(but->editval || but->editstr || but->editvec))
1943                 ui_set_but_soft_range(but, ui_get_but_val(but));
1944
1945         /* test for min and max, icon sliders, etc */
1946         switch( but->type ) {
1947                 case NUM:
1948                 case SLI:
1949                 case SCROLL:
1950                 case NUMSLI:
1951                 case HSVSLI:
1952                         value= ui_get_but_val(but);
1953                         if(value < (double)but->hardmin) ui_set_but_val(but, but->hardmin);
1954                         else if(value > (double)but->hardmax) ui_set_but_val(but, but->hardmax);
1955                         break;
1956
1957                 case NUMABS:
1958                         value= fabs( ui_get_but_val(but) );
1959                         if(value < (double)but->hardmin) ui_set_but_val(but, but->hardmin);
1960                         else if(value > (double)but->hardmax) ui_set_but_val(but, but->hardmax);
1961                         break;
1962
1963                 case ICONTOG:
1964                 case ICONTOGN:
1965                         if(!but->rnaprop || (RNA_property_flag(but->rnaprop) & PROP_ICONS_CONSECUTIVE)) {
1966                                 if(but->flag & UI_SELECT) but->iconadd= 1;
1967                                 else but->iconadd= 0;
1968                         }
1969                         break;
1970
1971                 case ICONROW:
1972                         if(!but->rnaprop || (RNA_property_flag(but->rnaprop) & PROP_ICONS_CONSECUTIVE)) {
1973                                 value= ui_get_but_val(but);
1974                                 but->iconadd= (int)value- (int)(but->hardmin);
1975                         }
1976                         break;
1977
1978                 case ICONTEXTROW:
1979                         if(!but->rnaprop || (RNA_property_flag(but->rnaprop) & PROP_ICONS_CONSECUTIVE)) {
1980                                 value= ui_get_but_val(but);
1981                                 but->iconadd= (int)value- (int)(but->hardmin);
1982                         }
1983                         break;
1984         }
1985
1986
1987         /* safety is 4 to enable small number buttons (like 'users') */
1988         // okwidth= -4 + (but->x2 - but->x1); // UNUSED
1989
1990         /* name: */
1991         switch( but->type ) {
1992
1993         case MENU:
1994         case ICONTEXTROW:
1995
1996                 if(but->x2 - but->x1 > 24) {
1997                         value= ui_get_but_val(but);
1998                         ui_set_name_menu(but, (int)value);
1999                 }
2000                 break;
2001
2002         case NUM:
2003         case NUMSLI:
2004         case HSVSLI:
2005         case NUMABS:
2006
2007                 value= ui_get_but_val(but);
2008
2009                 if(ui_is_but_float(but)) {
2010                         if(value == (double) FLT_MAX) sprintf(but->drawstr, "%sinf", but->str);
2011                         else if(value == (double) -FLT_MAX) sprintf(but->drawstr, "%s-inf", but->str);
2012                         /* support length type buttons */
2013                         else if(ui_is_but_unit(but)) {
2014                                 char new_str[sizeof(but->drawstr)];
2015                                 ui_get_but_string_unit(but, new_str, sizeof(new_str), value, TRUE);
2016                                 BLI_snprintf(but->drawstr, sizeof(but->drawstr), "%s%s", but->str, new_str);
2017                         }
2018                         else {
2019                                 int prec= (int)but->a2;
2020                                 if(prec==0) prec= (but->hardmax < 10.001f) ? 3 : 2;
2021                                 else CLAMP(prec, 1, 7);
2022
2023                                 BLI_snprintf(but->drawstr, sizeof(but->drawstr), "%s%.*f", but->str, prec, value);
2024                         }
2025                 }
2026                 else {
2027                         sprintf(but->drawstr, "%s%d", but->str, (int)value);
2028                 }
2029
2030                 if(but->rnaprop) {
2031                         PropertySubType pstype = RNA_property_subtype(but->rnaprop);
2032
2033                         if (pstype == PROP_PERCENTAGE)
2034                                 strcat(but->drawstr, "%");
2035                 }
2036                 break;
2037
2038         case LABEL:
2039                 if(ui_is_but_float(but)) {
2040                         int prec= (int)but->a2;
2041                         value= ui_get_but_val(but);
2042                         if(prec==0) prec= 3;
2043                         else CLAMP(prec, 1, 7);
2044
2045                         BLI_snprintf(but->drawstr, sizeof(but->drawstr), "%s%.*f", but->str, prec, value);
2046                 }
2047                 else {
2048                         strncpy(but->drawstr, but->str, UI_MAX_DRAW_STR);
2049                 }
2050
2051                 break;
2052
2053         case IDPOIN:
2054         case TEX:
2055         case SEARCH_MENU:
2056                 if(!but->editstr) {
2057                         char str[UI_MAX_DRAW_STR];
2058
2059                         ui_get_but_string(but, str, UI_MAX_DRAW_STR-strlen(but->str));
2060
2061                         BLI_snprintf(but->drawstr, sizeof(but->drawstr), "%s%s", but->str, str);
2062                 }
2063                 break;
2064
2065         case KEYEVT:
2066                 strncpy(but->drawstr, but->str, UI_MAX_DRAW_STR);
2067                 if (but->flag & UI_SELECT) {
2068                         strcat(but->drawstr, "Press a key");
2069                 } else {
2070                         strcat(but->drawstr, WM_key_event_string((short) ui_get_but_val(but)));
2071                 }
2072                 break;
2073
2074         case HOTKEYEVT:
2075                 if (but->flag & UI_SELECT) {
2076                         but->drawstr[0]= '\0';
2077
2078                         if(but->modifier_key) {
2079                                 char *str= but->drawstr;
2080
2081                                 if(but->modifier_key & KM_SHIFT)
2082                                         str= strcat(str, "Shift ");
2083                                 if(but->modifier_key & KM_CTRL)
2084                                         str= strcat(str, "Ctrl ");
2085                                 if(but->modifier_key & KM_ALT)
2086                                         str= strcat(str, "Alt ");
2087                                 if(but->modifier_key & KM_OSKEY)
2088                                         str= strcat(str, "Cmd ");
2089
2090                                 (void)str; /* UNUSED */
2091                         }
2092                         else
2093                                 strcat(but->drawstr, "Press a key  ");
2094                 }
2095                 else
2096                         strncpy(but->drawstr, but->str, UI_MAX_DRAW_STR);
2097
2098                 break;
2099
2100         case BUT_TOGDUAL:
2101                 /* trying to get the dual-icon to left of text... not very nice */
2102                 if(but->str[0]) {
2103                         strncpy(but->drawstr, "  ", UI_MAX_DRAW_STR);
2104                         strncpy(but->drawstr+2, but->str, UI_MAX_DRAW_STR-2);
2105                 }
2106                 break;
2107
2108         case HSVCUBE:
2109         case HSVCIRCLE:
2110                 break;
2111         default:
2112                 strncpy(but->drawstr, but->str, UI_MAX_DRAW_STR);
2113
2114         }
2115
2116         /* if we are doing text editing, this will override the drawstr */
2117         if(but->editstr)
2118                 strncpy(but->drawstr, but->editstr, UI_MAX_DRAW_STR);
2119
2120         /* text clipping moved to widget drawing code itself */
2121 }
2122
2123
2124 void uiBlockBeginAlign(uiBlock *block)
2125 {
2126         /* if other align was active, end it */
2127         if(block->flag & UI_BUT_ALIGN) uiBlockEndAlign(block);
2128
2129         block->flag |= UI_BUT_ALIGN_DOWN;
2130         block->alignnr++;
2131
2132         /* buttons declared after this call will get this align nr */ // XXX flag?
2133 }
2134
2135 static int buts_are_horiz(uiBut *but1, uiBut *but2)
2136 {
2137         float dx, dy;
2138
2139         dx= fabs( but1->x2 - but2->x1);
2140         dy= fabs( but1->y1 - but2->y2);
2141
2142         if(dx > dy) return 0;
2143         return 1;
2144 }
2145
2146 void uiBlockEndAlign(uiBlock *block)
2147 {
2148         block->flag &= ~UI_BUT_ALIGN;   // all 4 flags
2149 }
2150
2151 int ui_but_can_align(uiBut *but)
2152 {
2153         return !ELEM3(but->type, LABEL, OPTION, OPTIONN);
2154 }
2155
2156 static void ui_block_do_align_but(uiBut *first, int nr)
2157 {
2158         uiBut *prev, *but=NULL, *next;
2159         int flag= 0, cols=0, rows=0;
2160
2161         /* auto align */
2162
2163         for(but=first; but && but->alignnr == nr; but=but->next) {
2164                 if(but->next && but->next->alignnr == nr) {
2165                         if(buts_are_horiz(but, but->next)) cols++;
2166                         else rows++;
2167                 }
2168         }
2169
2170         /* rows==0: 1 row, cols==0: 1 collumn */
2171
2172         /* note;  how it uses 'flag' in loop below (either set it, or OR it) is confusing */
2173         for(but=first, prev=NULL; but && but->alignnr == nr; prev=but, but=but->next) {
2174                 next= but->next;
2175                 if(next && next->alignnr != nr)
2176                         next= NULL;
2177
2178                 /* clear old flag */
2179                 but->flag &= ~UI_BUT_ALIGN;
2180
2181                 if(flag==0) {   /* first case */
2182                         if(next) {
2183                                 if(buts_are_horiz(but, next)) {
2184                                         if(rows==0)
2185                                                 flag= UI_BUT_ALIGN_RIGHT;
2186                                         else
2187                                                 flag= UI_BUT_ALIGN_DOWN|UI_BUT_ALIGN_RIGHT;
2188                                 }
2189                                 else {
2190                                         flag= UI_BUT_ALIGN_DOWN;
2191                                 }
2192                         }
2193                 }
2194                 else if(next==NULL) {   /* last case */
2195                         if(prev) {
2196                                 if(buts_are_horiz(prev, but)) {
2197                                         if(rows==0)
2198                                                 flag= UI_BUT_ALIGN_LEFT;
2199                                         else
2200                                                 flag= UI_BUT_ALIGN_TOP|UI_BUT_ALIGN_LEFT;
2201                                 }
2202                                 else flag= UI_BUT_ALIGN_TOP;
2203                         }
2204                 }
2205                 else if(buts_are_horiz(but, next)) {
2206                         /* check if this is already second row */
2207                         if( prev && buts_are_horiz(prev, but)==0) {
2208                                 flag &= ~UI_BUT_ALIGN_LEFT;
2209                                 flag |= UI_BUT_ALIGN_TOP;
2210                                 /* exception case: bottom row */
2211                                 if(rows>0) {
2212                                         uiBut *bt= but;
2213                                         while(bt && bt->alignnr == nr) {
2214                                                 if(bt->next && bt->next->alignnr == nr && buts_are_horiz(bt, bt->next)==0 ) break;
2215                                                 bt= bt->next;
2216                                         }
2217                                         if(bt==NULL || bt->alignnr != nr) flag= UI_BUT_ALIGN_TOP|UI_BUT_ALIGN_RIGHT;
2218                                 }
2219                         }
2220                         else flag |= UI_BUT_ALIGN_LEFT;
2221                 }
2222                 else {
2223                         if(cols==0) {
2224                                 flag |= UI_BUT_ALIGN_TOP;
2225                         }
2226                         else {  /* next button switches to new row */
2227
2228                                 if(prev && buts_are_horiz(prev, but))
2229                                         flag |= UI_BUT_ALIGN_LEFT;
2230                                 else {
2231                                         flag &= ~UI_BUT_ALIGN_LEFT;
2232                                         flag |= UI_BUT_ALIGN_TOP;
2233                                 }
2234
2235                                 if( (flag & UI_BUT_ALIGN_TOP)==0) {     /* stil top row */
2236                                         if(prev) {
2237                                                 if(next && buts_are_horiz(but, next))
2238                                                         flag = UI_BUT_ALIGN_DOWN|UI_BUT_ALIGN_LEFT|UI_BUT_ALIGN_RIGHT;
2239                                                 else {
2240                                                         /* last button in top row */
2241                                                         flag = UI_BUT_ALIGN_DOWN|UI_BUT_ALIGN_LEFT;
2242                                                 }
2243                                         }
2244                                         else
2245                                                 flag |= UI_BUT_ALIGN_DOWN;
2246                                 }
2247                                 else
2248                                         flag |= UI_BUT_ALIGN_TOP;
2249                         }
2250                 }
2251
2252                 but->flag |= flag;
2253
2254                 /* merge coordinates */
2255                 if(prev) {
2256                         // simple cases
2257                         if(rows==0) {
2258                                 but->x1= (prev->x2+but->x1)/2.0f;
2259                                 prev->x2= but->x1;
2260                         }
2261                         else if(cols==0) {
2262                                 but->y2= (prev->y1+but->y2)/2.0f;
2263                                 prev->y1= but->y2;
2264                         }
2265                         else {
2266                                 if(buts_are_horiz(prev, but)) {
2267                                         but->x1= (prev->x2+but->x1)/2.0f;
2268                                         prev->x2= but->x1;
2269                                         /* copy height too */
2270                                         but->y2= prev->y2;
2271                                 }
2272                                 else if(prev->prev && buts_are_horiz(prev->prev, prev)==0) {
2273                                         /* the previous button is a single one in its row */
2274                                         but->y2= (prev->y1+but->y2)/2.0f;
2275                                         prev->y1= but->y2;
2276
2277                                         but->x1= prev->x1;
2278                                         if(next && buts_are_horiz(but, next)==0)
2279                                                 but->x2= prev->x2;
2280                                 }
2281                                 else {
2282                                         /* the previous button is not a single one in its row */
2283                                         but->y2= prev->y1;
2284                                 }
2285                         }
2286                 }
2287         }
2288 }
2289
2290 void ui_block_do_align(uiBlock *block)
2291 {
2292         uiBut *but;
2293         int nr;
2294
2295         /* align buttons with same align nr */
2296         for(but=block->buttons.first; but;) {
2297                 if(but->alignnr) {
2298                         nr= but->alignnr;
2299                         ui_block_do_align_but(but, nr);
2300
2301                         /* skip with same number */
2302                         for(; but && but->alignnr == nr; but=but->next);
2303
2304                         if(!but)
2305                                 break;
2306                 }
2307                 else
2308                         but= but->next;
2309         }
2310 }
2311
2312 /*
2313 ui_def_but is the function that draws many button types
2314
2315 for float buttons:
2316         "a1" Click Step (how much to change the value each click)
2317         "a2" Number of decimal point values to display. 0 defaults to 3 (0.000) 1,2,3, and a maximum of 4,
2318            all greater values will be clamped to 4.
2319
2320 */
2321 static uiBut *ui_def_but(uiBlock *block, int type, int retval, const char *str, int x1, int y1, short x2, short y2, void *poin, float min, float max, float a1, float a2, const char *tip)
2322 {
2323         uiBut *but;
2324         int slen;
2325
2326         if(type & BUTPOIN) {            /* a pointer is required */
2327                 if(poin==NULL)
2328                         return NULL;
2329         }
2330
2331         but= MEM_callocN(sizeof(uiBut), "uiBut");
2332
2333         but->type= type & BUTTYPE;
2334         but->pointype= type & BUTPOIN;
2335         but->bit= type & BIT;
2336         but->bitnr= type & 31;
2337         but->icon = 0;
2338         but->iconadd=0;
2339
2340         but->retval= retval;
2341
2342         slen= strlen(str);
2343         if(slen >= UI_MAX_NAME_STR-1) {
2344                 but->str= MEM_mallocN(slen+2, "ui_def_but str"); /* why +2 ? */
2345         }
2346         else {
2347                 but->str= but->strdata;
2348         }
2349         memcpy(but->str, str, slen+1);
2350
2351         but->x1= x1;
2352         but->y1= y1;
2353         but->x2= (x1+x2);
2354         but->y2= (y1+y2);
2355
2356         but->poin= poin;
2357         but->hardmin= but->softmin= min;
2358         but->hardmax= but->softmax= max;
2359         but->a1= a1;
2360         but->a2= a2;
2361         but->tip= tip;
2362
2363         but->lock= block->lock;
2364         but->lockstr= block->lockstr;
2365         but->dt= block->dt;
2366
2367         but->aspect= 1.0f; //XXX block->aspect;
2368         but->block= block;              // pointer back, used for frontbuffer status, and picker
2369
2370         if((block->flag & UI_BUT_ALIGN) && ui_but_can_align(but))
2371                 but->alignnr= block->alignnr;
2372
2373         but->func= block->func;
2374         but->func_arg1= block->func_arg1;
2375         but->func_arg2= block->func_arg2;
2376
2377         but->funcN= block->funcN;
2378         if(block->func_argN)
2379                 but->func_argN= MEM_dupallocN(block->func_argN);
2380
2381         but->pos= -1;   /* cursor invisible */
2382
2383         if(ELEM4(but->type, NUM, NUMABS, NUMSLI, HSVSLI)) {     /* add a space to name */
2384                 slen= strlen(but->str);
2385                 if(slen>0 && slen<UI_MAX_NAME_STR-2) {
2386                         if(but->str[slen-1]!=' ') {
2387                                 but->str[slen]= ' ';
2388                                 but->str[slen+1]= 0;
2389                         }
2390                 }
2391         }
2392
2393         if((block->flag & UI_BLOCK_LOOP) || ELEM8(but->type, MENU, TEX, LABEL, IDPOIN, BLOCK, BUTM, SEARCH_MENU, PROGRESSBAR))
2394                 but->flag |= (UI_TEXT_LEFT|UI_ICON_LEFT);
2395         else if(but->type==BUT_TOGDUAL)
2396                 but->flag |= UI_ICON_LEFT;
2397
2398         but->flag |= (block->flag & UI_BUT_ALIGN);
2399
2400         if (but->lock) {
2401                 if (but->lockstr) {
2402                         but->flag |= UI_BUT_DISABLED;
2403                 }
2404         }
2405
2406         /* keep track of UI_interface.h */
2407         if(ELEM7(but->type, BLOCK, BUT, LABEL, PULLDOWN, ROUNDBOX, LISTBOX, BUTM));
2408         else if(ELEM3(but->type, SCROLL, SEPR, FTPREVIEW));
2409         else if(but->type >= SEARCH_MENU);
2410         else but->flag |= UI_BUT_UNDO;
2411
2412         BLI_addtail(&block->buttons, but);
2413
2414         if(block->curlayout)
2415                 ui_layout_add_but(block->curlayout, but);
2416
2417         return but;
2418 }
2419
2420 static uiBut *ui_def_but_rna(uiBlock *block, int type, int retval, const char *str, int x1, int y1, short x2, short y2, PointerRNA *ptr, const char *propname, int index, float min, float max, float a1, float a2,  const char *tip)
2421 {
2422         uiBut *but;
2423         PropertyRNA *prop;
2424         PropertyType proptype;
2425         int freestr= 0, icon= 0;
2426
2427         prop= RNA_struct_find_property(ptr, propname);
2428
2429         if(prop) {
2430                 proptype= RNA_property_type(prop);
2431
2432                 /* use rna values if parameters are not specified */
2433                 if(!str) {
2434                         if(type == MENU && proptype == PROP_ENUM) {
2435                                 EnumPropertyItem *item;
2436                                 DynStr *dynstr;
2437                                 int i, totitem, value, free;
2438
2439                                 RNA_property_enum_items(block->evil_C, ptr, prop, &item, &totitem, &free);
2440                                 value= RNA_property_enum_get(ptr, prop);
2441
2442                                 dynstr= BLI_dynstr_new();
2443                                 BLI_dynstr_appendf(dynstr, "%s%%t", RNA_property_ui_name(prop));
2444                                 for(i=0; i<totitem; i++) {
2445                                         if(!item[i].identifier[0]) {
2446                                                 if(item[i].name)
2447                                                         BLI_dynstr_appendf(dynstr, "|%s%%l", item[i].name);
2448                                                 else
2449                                                         BLI_dynstr_append(dynstr, "|%l");
2450                                         }
2451                                         else if(item[i].icon)
2452                                                 BLI_dynstr_appendf(dynstr, "|%s %%i%d %%x%d", item[i].name, item[i].icon, item[i].value);
2453                                         else
2454                                                 BLI_dynstr_appendf(dynstr, "|%s %%x%d", item[i].name, item[i].value);
2455
2456                                         if(value == item[i].value) {
2457                                                 icon= item[i].icon;
2458                                                 if(!tip)
2459                                                         tip= item[i].description;
2460                                         }
2461                                 }
2462                                 str= BLI_dynstr_get_cstring(dynstr);
2463                                 BLI_dynstr_free(dynstr);
2464
2465                                 if(free)
2466                                         MEM_freeN(item);
2467
2468                                 freestr= 1;
2469                         }
2470                         else if(ELEM(type, ROW, LISTROW) && proptype == PROP_ENUM) {
2471                                 EnumPropertyItem *item;
2472                                 int i, totitem, free;
2473
2474                                 RNA_property_enum_items(block->evil_C, ptr, prop, &item, &totitem, &free);
2475                                 for(i=0; i<totitem; i++) {
2476                                         if(item[i].identifier[0] && item[i].value == (int)max) {
2477                                                 str= item[i].name;
2478                                                 icon= item[i].icon;
2479                                         }
2480                                 }
2481
2482                                 if(!str)
2483                                         str= RNA_property_ui_name(prop);
2484                                 if(free)
2485                                         MEM_freeN(item);
2486                         }
2487                         else {
2488                                 str= RNA_property_ui_name(prop);
2489                                 icon= RNA_property_ui_icon(prop);
2490                         }
2491                 }
2492
2493                 if(!tip) {
2494                         if(type == ROW && proptype == PROP_ENUM) {
2495                                 EnumPropertyItem *item;
2496                                 int i, totitem, free;
2497
2498                                 RNA_property_enum_items(block->evil_C, ptr, prop, &item, &totitem, &free);
2499
2500                                 for(i=0; i<totitem; i++) {
2501                                         if(item[i].identifier[0] && item[i].value == (int)max) {
2502                                                 if(item[i].description[0])
2503                                                         tip= item[i].description;
2504                                                 break;
2505                                         }
2506                                 }
2507
2508                                 if(free)
2509                                         MEM_freeN(item);
2510                         }
2511                 }
2512
2513                 if(!tip)
2514                         tip= RNA_property_ui_description(prop);
2515
2516                 if(min == max || a1 == -1 || a2 == -1) {
2517                         if(proptype == PROP_INT) {
2518                                 int hardmin, hardmax, softmin, softmax, step;
2519
2520                                 RNA_property_int_range(ptr, prop, &hardmin, &hardmax);
2521                                 RNA_property_int_ui_range(ptr, prop, &softmin, &softmax, &step);
2522
2523                                 if(!ELEM(type, ROW, LISTROW) && min == max) {
2524                                         min= hardmin;
2525                                         max= hardmax;
2526                                 }
2527                                 if(a1 == -1)
2528                                         a1= step;
2529                                 if(a2 == -1)
2530                                         a2= 0;
2531                         }
2532                         else if(proptype == PROP_FLOAT) {
2533                                 float hardmin, hardmax, softmin, softmax, step, precision;
2534
2535                                 RNA_property_float_range(ptr, prop, &hardmin, &hardmax);
2536                                 RNA_property_float_ui_range(ptr, prop, &softmin, &softmax, &step, &precision);
2537
2538                                 if(!ELEM(type, ROW, LISTROW) && min == max) {
2539                                         min= hardmin;
2540                                         max= hardmax;
2541                                 }
2542                                 if(a1 == -1)
2543                                         a1= step;
2544                                 if(a2 == -1)
2545                                         a2= precision;
2546                         }
2547                         else if(proptype == PROP_STRING) {
2548                                 min= 0;
2549                                 max= RNA_property_string_maxlength(prop);
2550                                 if(max == 0) /* interface code should ideally support unlimited length */
2551                                         max= UI_MAX_DRAW_STR;
2552                         }
2553                 }
2554         }
2555         else {
2556                 RNA_warning("ui_def_but_rna: property not found: %s.%s\n", RNA_struct_identifier(ptr->type), propname);
2557                 str= propname;
2558         }
2559
2560         /* now create button */
2561         but= ui_def_but(block, type, retval, str, x1, y1, x2, y2, NULL, min, max, a1, a2, tip);
2562
2563         if(prop) {
2564                 but->rnapoin= *ptr;
2565                 but->rnaprop= prop;
2566
2567                 if(RNA_property_array_length(&but->rnapoin, but->rnaprop))
2568                         but->rnaindex= index;
2569                 else
2570                         but->rnaindex= 0;
2571         }
2572
2573         if(icon) {
2574                 but->icon= (BIFIconID)icon;
2575                 but->flag |= UI_HAS_ICON;
2576                 but->flag|= UI_ICON_LEFT;
2577         }
2578
2579         if (!prop || !RNA_property_editable(&but->rnapoin, prop)) {
2580                 but->flag |= UI_BUT_DISABLED;
2581                 but->lock = 1;
2582                 but->lockstr = "";
2583         }
2584
2585         /* If this button uses units, calculate the step from this */
2586         if(ui_is_but_unit(but))
2587                 but->a1= ui_get_but_step_unit(but, but->a1);
2588
2589         if(freestr)
2590                 MEM_freeN((void *)str);
2591
2592         return but;
2593 }
2594
2595 static uiBut *ui_def_but_operator(uiBlock *block, int type, const char *opname, int opcontext, const char *str, int x1, int y1, short x2, short y2, const char *tip)
2596 {
2597         uiBut *but;
2598         wmOperatorType *ot;
2599
2600         ot= WM_operatortype_find(opname, 0);
2601
2602         if(!str) {
2603                 if(ot) str= ot->name;
2604                 else str= opname;
2605         }
2606
2607         if ((!tip || tip[0]=='\0') && ot && ot->description) {
2608                 tip= ot->description;
2609         }
2610
2611         but= ui_def_but(block, type, -1, str, x1, y1, x2, y2, NULL, 0, 0, 0, 0, tip);
2612         but->optype= ot;
2613         but->opcontext= opcontext;
2614
2615         if(!ot) {
2616                 but->flag |= UI_BUT_DISABLED;
2617                 but->lock = 1;
2618                 but->lockstr = "";
2619         }
2620
2621         return but;
2622 }
2623
2624 static uiBut *ui_def_but_operator_text(uiBlock *block, int type, const char *opname, int opcontext, const char *str, int x1, int y1, short x2, short y2, void *poin, float min, float max, float a1, float a2, const char *tip)
2625 {
2626         uiBut *but;
2627         wmOperatorType *ot;
2628
2629         ot= WM_operatortype_find(opname, 0);
2630
2631         if(!str) {
2632                 if(ot) str= ot->name;
2633                 else str= opname;
2634         }
2635
2636         if ((!tip || tip[0]=='\0') && ot && ot->description) {
2637                 tip= ot->description;
2638         }
2639
2640         but= ui_def_but(block, type, -1, str, x1, y1, x2, y2, poin, min, max, a1, a2, tip);
2641         but->optype= ot;
2642         but->opcontext= opcontext;
2643
2644         if(!ot) {
2645                 but->flag |= UI_BUT_DISABLED;
2646                 but->lock = 1;
2647                 but->lockstr = "";
2648         }
2649
2650         return but;
2651 }
2652
2653 uiBut *uiDefBut(uiBlock *block, int type, int retval, const char *str, int x1, int y1, short x2, short y2, void *poin, float min, float max, float a1, float a2, const char *tip)
2654 {
2655         uiBut *but= ui_def_but(block, type, retval, str, x1, y1, x2, y2, poin, min, max, a1, a2, tip);
2656
2657         ui_check_but(but);
2658
2659         return but;
2660 }
2661
2662         /* if _x_ is a power of two (only one bit) return the power,
2663          * otherwise return -1.
2664          * (1<<findBitIndex(x))==x for powers of two.
2665          */
2666 static int findBitIndex(unsigned int x) {
2667         if (!x || (x&(x-1))!=0) {       /* x&(x-1) strips lowest bit */
2668                 return -1;
2669         } else {
2670                 int idx= 0;
2671
2672                 if (x&0xFFFF0000)       idx+=16, x>>=16;
2673                 if (x&0xFF00)           idx+=8, x>>=8;
2674                 if (x&0xF0)                     idx+=4, x>>=4;
2675                 if (x&0xC)                      idx+=2, x>>=2;
2676                 if (x&0x2)                      idx+=1;
2677
2678                 return idx;
2679         }
2680 }
2681
2682 /* autocomplete helper functions */
2683 struct AutoComplete {
2684         int maxlen;
2685         char *truncate;
2686         const char *startname;
2687 };
2688
2689 AutoComplete *autocomplete_begin(const char *startname, int maxlen)
2690 {
2691         AutoComplete *autocpl;
2692
2693         autocpl= MEM_callocN(sizeof(AutoComplete), "AutoComplete");
2694         autocpl->maxlen= maxlen;
2695         autocpl->truncate= MEM_callocN(sizeof(char)*maxlen, "AutoCompleteTruncate");
2696         autocpl->startname= startname;
2697
2698         return autocpl;
2699 }
2700
2701 void autocomplete_do_name(AutoComplete *autocpl, const char *name)
2702 {
2703         char *truncate= autocpl->truncate;
2704         const char *startname= autocpl->startname;
2705         int a;
2706
2707         for(a=0; a<autocpl->maxlen-1; a++) {
2708                 if(startname[a]==0 || startname[a]!=name[a])
2709                         break;
2710         }
2711         /* found a match */
2712         if(startname[a]==0) {
2713                 /* first match */
2714                 if(truncate[0]==0)
2715                         BLI_strncpy(truncate, name, autocpl->maxlen);
2716                 else {
2717                         /* remove from truncate what is not in bone->name */
2718                         for(a=0; a<autocpl->maxlen-1; a++) {
2719                                 if(name[a] == 0) {
2720                                         truncate[a]= 0;
2721                                         break;
2722                                 }
2723                                 else if(truncate[a]!=name[a])
2724                                         truncate[a]= 0;
2725                         }
2726                 }
2727         }
2728 }
2729
2730 void autocomplete_end(AutoComplete *autocpl, char *autoname)
2731 {
2732         if(autocpl->truncate[0])
2733                 BLI_strncpy(autoname, autocpl->truncate, autocpl->maxlen);
2734         else {
2735                 if (autoname != autocpl->startname) /* dont copy a string over its self */
2736                         BLI_strncpy(autoname, autocpl->startname, autocpl->maxlen);
2737         }
2738         MEM_freeN(autocpl->truncate);
2739         MEM_freeN(autocpl);
2740 }
2741
2742 /* autocomplete callback for ID buttons */
2743 static void autocomplete_id(bContext *C, char *str, void *arg_v)
2744 {
2745         int blocktype= (intptr_t)arg_v;
2746         ListBase *listb= which_libbase(CTX_data_main(C), blocktype);
2747
2748         if(listb==NULL) return;
2749
2750         /* search if str matches the beginning of an ID struct */
2751         if(str[0]) {
2752                 AutoComplete *autocpl= autocomplete_begin(str, 22);
2753                 ID *id;
2754
2755                 for(id= listb->first; id; id= id->next)
2756                         autocomplete_do_name(autocpl, id->name+2);
2757
2758                 autocomplete_end(autocpl, str);
2759         }
2760 }
2761
2762 static uiBut *uiDefButBit(uiBlock *block, int type, int bit, int retval, const char *str, int x1, int y1, short x2, short y2, void *poin, float min, float max, float a1, float a2,  const char *tip)
2763 {
2764         int bitIdx= findBitIndex(bit);
2765         if (bitIdx==-1) {
2766                 return NULL;
2767         } else {
2768                 return uiDefBut(block, type|BIT|bitIdx, retval, str, x1, y1, x2, y2, poin, min, max, a1, a2, tip);
2769         }
2770 }
2771 uiBut *uiDefButF(uiBlock *block, int type, int retval, const char *str, int x1, int y1, short x2, short y2, float *poin, float min, float max, float a1, float a2,  const char *tip)
2772 {
2773         return uiDefBut(block, type|FLO, retval, str, x1, y1, x2, y2, (void*) poin, min, max, a1, a2, tip);
2774 }
2775 uiBut *uiDefButBitF(uiBlock *block, int type, int bit, int retval, const char *str, int x1, int y1, short x2, short y2, float *poin, float min, float max, float a1, float a2,  const char *tip)
2776 {
2777         return uiDefButBit(block, type|FLO, bit, retval, str, x1, y1, x2, y2, (void*) poin, min, max, a1, a2, tip);
2778 }
2779 uiBut *uiDefButI(uiBlock *block, int type, int retval, const char *str, int x1, int y1, short x2, short y2, int *poin, float min, float max, float a1, float a2,  const char *tip)
2780 {
2781         return uiDefBut(block, type|INT, retval, str, x1, y1, x2, y2, (void*) poin, min, max, a1, a2, tip);
2782 }
2783 uiBut *uiDefButBitI(uiBlock *block, int type, int bit, int retval, const char *str, int x1, int y1, short x2, short y2, int *poin, float min, float max, float a1, float a2,  const char *tip)
2784 {
2785         return uiDefButBit(block, type|INT, bit, retval, str, x1, y1, x2, y2, (void*) poin, min, max, a1, a2, tip);
2786 }
2787 uiBut *uiDefButS(uiBlock *block, int type, int retval, const char *str, int x1, int y1, short x2, short y2, short *poin, float min, float max, float a1, float a2,  const char *tip)
2788 {
2789         return uiDefBut(block, type|SHO, retval, str, x1, y1, x2, y2, (void*) poin, min, max, a1, a2, tip);
2790 }
2791 uiBut *uiDefButBitS(uiBlock *block, int type, int bit, int retval, const char *str, int x1, int y1, short x2, short y2, short *poin, float min, float max, float a1, float a2,  const char *tip)
2792 {
2793         return uiDefButBit(block, type|SHO, bit, retval, str, x1, y1, x2, y2, (void*) poin, min, max, a1, a2, tip);
2794 }
2795 uiBut *uiDefButC(uiBlock *block, int type, int retval, const char *str, int x1, int y1, short x2, short y2, char *poin, float min, float max, float a1, float a2,  const char *tip)
2796 {
2797         return uiDefBut(block, type|CHA, retval, str, x1, y1, x2, y2, (void*) poin, min, max, a1, a2, tip);
2798 }
2799 uiBut *uiDefButBitC(uiBlock *block, int type, int bit, int retval, const char *str, int x1, int y1, short x2, short y2, char *poin, float min, float max, float a1, float a2,  const char *tip)
2800 {
2801         return uiDefButBit(block, type|CHA, bit, retval, str, x1, y1, x2, y2, (void*) poin, min, max, a1, a2, tip);
2802 }
2803 uiBut *uiDefButR(uiBlock *block, int type, int retval, const char *str, int x1, int y1, short x2, short y2, PointerRNA *ptr, const char *propname, int index, float min, float max, float a1, float a2,  const char *tip)
2804 {
2805         uiBut *but;
2806
2807         but= ui_def_but_rna(block, type, retval, str, x1, y1, x2, y2, ptr, propname, index, min, max, a1, a2, tip);
2808         if(but)
2809                 ui_check_but(but);
2810
2811         return but;
2812 }
2813 uiBut *uiDefButO(uiBlock *block, int type, const char *opname, int opcontext, const char *str, int x1, int y1, short x2, short y2, const char *tip)
2814 {
2815         uiBut *but;
2816
2817         but= ui_def_but_operator(block, type, opname, opcontext, str, x1, y1, x2, y2, tip);
2818         if(but)
2819                 ui_check_but(but);
2820
2821         return but;
2822 }
2823
2824 uiBut *uiDefButTextO(uiBlock *block, int type, const char *opname, int opcontext, const char *str, int x1, int y1, short x2, short y2, void *poin, float min, float max, float a1, float a2,  const char *tip)
2825 {
2826         uiBut *but= ui_def_but_operator_text(block, type, opname, opcontext, str, x1, y1, x2, y2, poin, min, max, a1, a2, tip);
2827
2828         if(but)
2829                 ui_check_but(but);
2830
2831         return but;
2832 }
2833
2834 /* if a1==1.0 then a2 is an extra icon blending factor (alpha 0.0 - 1.0) */
2835 uiBut *uiDefIconBut(uiBlock *block, int type, int retval, int icon, int x1, int y1, short x2, short y2, void *poin, float min, float max, float a1, float a2,  const char *tip)
2836 {
2837         uiBut *but= ui_def_but(block, type, retval, "", x1, y1, x2, y2, poin, min, max, a1, a2, tip);
2838
2839         but->icon= (BIFIconID) icon;
2840         but->flag|= UI_HAS_ICON;
2841
2842         ui_check_but(but);
2843
2844         return but;
2845 }
2846 static uiBut *uiDefIconButBit(uiBlock *block, int type, int bit, int retval, int icon, int x1, int y1, short x2, short y2, void *poin, float min, float max, float a1, float a2, const char *tip)
2847 {
2848         int bitIdx= findBitIndex(bit);
2849         if (bitIdx==-1) {
2850                 return NULL;
2851         } else {
2852                 return uiDefIconBut(block, type|BIT|bitIdx, retval, icon, x1, y1, x2, y2, poin, min, max, a1, a2, tip);
2853         }
2854 }
2855
2856 uiBut *uiDefIconButF(uiBlock *block, int type, int retval, int icon, int x1, int y1, short x2, short y2, float *poin, float min, float max, float a1, float a2,  const char *tip)
2857 {
2858         return uiDefIconBut(block, type|FLO, retval, icon, x1, y1, x2, y2, (void*) poin, min, max, a1, a2, tip);
2859 }
2860 uiBut *uiDefIconButBitF(uiBlock *block, int type, int bit, int retval, int icon, int x1, int y1, short x2, short y2, float *poin, float min, float max, float a1, float a2,  const char *tip)
2861 {
2862         return uiDefIconButBit(block, type|FLO, bit, retval, icon, x1, y1, x2, y2, (void*) poin, min, max, a1, a2, tip);
2863 }
2864 uiBut *uiDefIconButI(uiBlock *block, int type, int retval, int icon, int x1, int y1, short x2, short y2, int *poin, float min, float max, float a1, float a2,  const char *tip)
2865 {
2866         return uiDefIconBut(block, type|INT, retval, icon, x1, y1, x2, y2, (void*) poin, min, max, a1, a2, tip);
2867 }
2868 uiBut *uiDefIconButBitI(uiBlock *block, int type, int bit, int retval, int icon, int x1, int y1, short x2, short y2, int *poin, float min, float max, float a1, float a2,  const char *tip)
2869 {
2870         return uiDefIconButBit(block, type|INT, bit, retval, icon, x1, y1, x2, y2, (void*) poin, min, max, a1, a2, tip);
2871 }
2872 uiBut *uiDefIconButS(uiBlock *block, int type, int retval, int icon, int x1, int y1, short x2, short y2, short *poin, float min, float max, float a1, float a2,  const char *tip)
2873 {
2874         return uiDefIconBut(block, type|SHO, retval, icon, x1, y1, x2, y2, (void*) poin, min, max, a1, a2, tip);
2875 }
2876 uiBut *uiDefIconButBitS(uiBlock *block, int type, int bit, int retval, int icon, int x1, int y1, short x2, short y2, short *poin, float min, float max, float a1, float a2,  const char *tip)
2877 {
2878         return uiDefIconButBit(block, type|SHO, bit, retval, icon, x1, y1, x2, y2, (void*) poin, min, max, a1, a2, tip);
2879 }
2880 uiBut *uiDefIconButC(uiBlock *block, int type, int retval, int icon, int x1, int y1, short x2, short y2, char *poin, float min, float max, float a1, float a2,  const char *tip)
2881 {
2882         return uiDefIconBut(block, type|CHA, retval, icon, x1, y1, x2, y2, (void*) poin, min, max, a1, a2, tip);
2883 }
2884 uiBut *uiDefIconButBitC(uiBlock *block, int type, int bit, int retval, int icon, int x1, int y1, short x2, short y2, char *poin, float min, float max, float a1, float a2,  const char *tip)
2885 {
2886         return uiDefIconButBit(block, type|CHA, bit, retval, icon, x1, y1, x2, y2, (void*) poin, min, max, a1, a2, tip);
2887 }
2888 uiBut *uiDefIconButR(uiBlock *block, int type, int retval, int icon, int x1, int y1, short x2, short y2, PointerRNA *ptr, const char *propname, int index, float min, float max, float a1, float a2,  const char *tip)
2889 {
2890         uiBut *but;
2891
2892         but= ui_def_but_rna(block, type, retval, "", x1, y1, x2, y2, ptr, propname, index, min, max, a1, a2, tip);
2893         if(but) {
2894                 if(icon) {
2895                         but->icon= (BIFIconID) icon;
2896                         but->flag|= UI_HAS_ICON;
2897                 }
2898                 ui_check_but(but);
2899         }
2900
2901         return but;
2902 }
2903 uiBut *uiDefIconButO(uiBlock *block, int type, const char *opname, int opcontext, int icon, int x1, int y1, short x2, short y2, const char *tip)
2904 {
2905         uiBut *but;
2906
2907         but= ui_def_but_operator(block, type, opname, opcontext, "", x1, y1, x2, y2, tip);
2908         if(but) {
2909                 but->icon= (BIFIconID) icon;
2910                 but->flag|= UI_HAS_ICON;
2911                 ui_check_but(but);
2912         }
2913
2914         return but;
2915 }
2916
2917 /* Button containing both string label and icon */
2918 uiBut *uiDefIconTextBut(uiBlock *block, int type, int retval, int icon, const char *str, int x1, int y1, short x2, short y2, void *poin, float min, float max, float a1, float a2,  const char *tip)
2919 {
2920         uiBut *but= ui_def_but(block, type, retval, str, x1, y1, x2, y2, poin, min, max, a1, a2, tip);
2921
2922         but->icon= (BIFIconID) icon;
2923         but->flag|= UI_HAS_ICON;
2924
2925         but->flag|= UI_ICON_LEFT;
2926
2927         ui_check_but(but);
2928
2929         return but;
2930 }
2931 static uiBut *uiDefIconTextButBit(uiBlock *block, int type, int bit, int retval, int icon, const char *str, int x1, int y1, short x2, short y2, void *poin, float min, float max, float a1, float a2,  const char *tip)
2932 {
2933         int bitIdx= findBitIndex(bit);
2934         if (bitIdx==-1) {
2935                 return NULL;
2936         } else {
2937                 return uiDefIconTextBut(block, type|BIT|bitIdx, retval, icon, str, x1, y1, x2, y2, poin, min, max, a1, a2, tip);
2938         }
2939 }
2940
2941 uiBut *uiDefIconTextButF(uiBlock *block, int type, int retval, int icon, const char *str, int x1, int y1, short x2, short y2, float *poin, float min, float max, float a1, float a2,  const char *tip)
2942 {
2943         return uiDefIconTextBut(block, type|FLO, retval, icon, str, x1, y1, x2, y2, (void*) poin, min, max, a1, a2, tip);
2944 }
2945 uiBut *uiDefIconTextButBitF(uiBlock *block, int type, int bit, int retval, int icon, const char *str, int x1, int y1, short x2, short y2, float *poin, float min, float max, float a1, float a2,  const char *tip)
2946 {
2947         return uiDefIconTextButBit(block, type|FLO, bit, retval, icon, str, x1, y1, x2, y2, (void*) poin, min, max, a1, a2, tip);
2948 }
2949 uiBut *uiDefIconTextButI(uiBlock *block, int type, int retval, int icon, const char *str, int x1, int y1, short x2, short y2, int *poin, float min, float max, float a1, float a2,  const char *tip)
2950 {
2951         return uiDefIconTextBut(block, type|INT, retval, icon, str, x1, y1, x2, y2, (void*) poin, min, max, a1, a2, tip);
2952 }
2953 uiBut *uiDefIconTextButBitI(uiBlock *block, int type, int bit, int retval, int icon, const char *str, int x1, int y1, short x2, short y2, int *poin, float min, float max, float a1, float a2,  const char *tip)
2954 {
2955         return uiDefIconTextButBit(block, type|INT, bit, retval, icon, str, x1, y1, x2, y2, (void*) poin, min, max, a1, a2, tip);
2956 }
2957 uiBut *uiDefIconTextButS(uiBlock *block, int type, int retval, int icon, const char *str, int x1, int y1, short x2, short y2, short *poin, float min, float max, float a1, float a2,  const char *tip)
2958 {
2959         return uiDefIconTextBut(block, type|SHO, retval, icon, str, x1, y1, x2, y2, (void*) poin, min, max, a1, a2, tip);
2960 }
2961 uiBut *uiDefIconTextButBitS(uiBlock *block, int type, int bit, int retval, int icon, const char *str, int x1, int y1, short x2, short y2, short *poin, float min, float max, float a1, float a2,  const char *tip)
2962 {
2963         return uiDefIconTextButBit(block, type|SHO, bit, retval, icon, str, x1, y1, x2, y2, (void*) poin, min, max, a1, a2, tip);
2964 }
2965 uiBut *uiDefIconTextButC(uiBlock *block, int type, int retval, int icon, const char *str, int x1, int y1, short x2, short y2, char *poin, float min, float max, float a1, float a2,  const char *tip)
2966 {
2967         return uiDefIconTextBut(block, type|CHA, retval, icon, str, x1, y1, x2, y2, (void*) poin, min, max, a1, a2, tip);
2968 }
2969 uiBut *uiDefIconTextButBitC(uiBlock *block, int type, int bit, int retval, int icon, const char *str, int x1, int y1, short x2, short y2, char *poin, float min, float max, float a1, float a2,  const char *tip)
2970 {
2971         return uiDefIconTextButBit(block, type|CHA, bit, retval, icon, str, x1, y1, x2, y2, (void*) poin, min, max, a1, a2, tip);
2972 }
2973 uiBut *uiDefIconTextButR(uiBlock *block, int type, int retval, int icon, const char *str, int x1, int y1, short x2, short y2, PointerRNA *ptr, const char *propname, int index, float min, float max, float a1, float a2,  const char *tip)
2974 {
2975         uiBut *but;
2976
2977         but= ui_def_but_rna(block, type, retval, str, x1, y1, x2, y2, ptr, propname, index, min, max, a1, a2, tip);
2978         if(but) {
2979                 if(icon) {
2980                         but->icon= (BIFIconID) icon;
2981                         but->flag|= UI_HAS_ICON;
2982                 }
2983                 but->flag|= UI_ICON_LEFT;
2984                 ui_check_but(but);
2985         }
2986
2987         return but;
2988 }
2989 uiBut *uiDefIconTextButO(uiBlock *block, int type, const char *opname, int opcontext, int icon, const char *str, int x1, int y1, short x2, short y2, const char *tip)
2990 {
2991         uiBut *but;
2992
2993         but= ui_def_but_operator(block, type, opname, opcontext, str, x1, y1, x2, y2, tip);
2994         if(but) {
2995                 but->icon= (BIFIconID) icon;
2996                 but->flag|= UI_HAS_ICON;
2997                 but->flag|= UI_ICON_LEFT;
2998                 ui_check_but(but);
2999         }
3000
3001         return but;
3002 }
3003
3004 /* END Button containing both string label and icon */
3005
3006 void uiSetButLink(uiBut *but, void **poin, void ***ppoin, short *tot, int from, int to)
3007 {
3008         uiLink *link;
3009
3010         link= but->link= MEM_callocN(sizeof(uiLink), "new uilink");
3011
3012         link->poin= poin;
3013         link->ppoin= ppoin;
3014         link->totlink= tot;
3015         link->fromcode= from;
3016         link->tocode= to;
3017 }
3018
3019 /* cruft to make uiBlock and uiBut private */
3020
3021 int uiBlocksGetYMin(ListBase *lb)
3022 {
3023         uiBlock *block;
3024         int min= 0;
3025
3026         for (block= lb->first; block; block= block->next)
3027                 if (block==lb->first || block->miny<min)
3028                         min= block->miny;
3029
3030         return min;
3031 }
3032
3033 void uiBlockSetDirection(uiBlock *block, int direction)
3034 {
3035         block->direction= direction;
3036 }
3037
3038 /* this call escapes if there's alignment flags */
3039 void uiBlockFlipOrder(uiBlock *block)
3040 {
3041         ListBase lb;
3042         uiBut *but, *next;
3043         float centy, miny=10000, maxy= -10000;
3044
3045         if(U.uiflag & USER_MENUFIXEDORDER)
3046                 return;
3047         else if(block->flag & UI_BLOCK_NO_FLIP)
3048                 return;