source/blender/editors/interface/interface_handlers.c

   1 /**
   2  * ***** BEGIN GPL LICENSE BLOCK *****
   3  *
   4  * This program is free software; you can redistribute it and/or
   5  * modify it under the terms of the GNU General Public License
   6  * as published by the Free Software Foundation; either version 2
   7  * of the License, or (at your option) any later version.
   8  *
   9  * This program is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12  * GNU General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU General Public License
  15  * along with this program; if not, write to the Free Software Foundation,
  16  * Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
  17  *
  18  * The Original Code is Copyright (C) 2008 Blender Foundation.
  19  * All rights reserved.
  20  *
  21  * Contributor(s): Blender Foundation
  22  *
  23  * ***** END GPL LICENSE BLOCK *****
  24  */
  25
  26 #include <float.h>
  27 #include <math.h>
  28 #include <stdlib.h>
  29 #include <string.h>
  30
  31 #include "MEM_guardedalloc.h"
  32
  33 #include "DNA_color_types.h"
  34 #include "DNA_object_types.h"
  35 #include "DNA_scene_types.h"
  36 #include "DNA_screen_types.h"
  37 #include "DNA_texture_types.h"
  38 #include "DNA_userdef_types.h"
  39 #include "DNA_windowmanager_types.h"
  40
  41 #include "BLI_arithb.h"
  42 #include "BLI_blenlib.h"
  43 #include "PIL_time.h"
  44
  45 #include "BKE_colortools.h"
  46 #include "BKE_context.h"
  47 #include "BKE_idprop.h"
  48 #include "BKE_report.h"
  49 #include "BKE_texture.h"
  50 #include "BKE_utildefines.h"
  51
  52 #include "ED_screen.h"
  53 #include "ED_util.h"
  54
  55 #include "UI_interface.h"
  56
  57 #include "BLF_api.h"
  58
  59 #include "interface_intern.h"
  60
  61 #include "RNA_access.h"
  62
  63 #include "WM_api.h"
  64 #include "WM_types.h"
  65
  66 /***************** structs and defines ****************/
  67
  68 #define BUTTON_TOOLTIP_DELAY            0.500
  69 #define BUTTON_FLASH_DELAY                      0.020
  70 #define BUTTON_AUTO_OPEN_THRESH         0.3
  71 #define BUTTON_MOUSE_TOWARDS_THRESH     1.0
  72
  73 typedef enum uiButtonActivateType {
  74         BUTTON_ACTIVATE_OVER,
  75         BUTTON_ACTIVATE,
  76         BUTTON_ACTIVATE_APPLY,
  77         BUTTON_ACTIVATE_TEXT_EDITING,
  78         BUTTON_ACTIVATE_OPEN
  79 } uiButtonActivateType;
  80
  81 typedef enum uiHandleButtonState {
  82         BUTTON_STATE_INIT,
  83         BUTTON_STATE_HIGHLIGHT,
  84         BUTTON_STATE_WAIT_FLASH,
  85         BUTTON_STATE_WAIT_RELEASE,
  86         BUTTON_STATE_WAIT_KEY_EVENT,
  87         BUTTON_STATE_NUM_EDITING,
  88         BUTTON_STATE_TEXT_EDITING,
  89         BUTTON_STATE_TEXT_SELECTING,
  90         BUTTON_STATE_MENU_OPEN,
  91         BUTTON_STATE_EXIT
  92 } uiHandleButtonState;
  93
  94 typedef struct uiHandleButtonData {
  95         wmWindow *window;
  96         ARegion *region;
  97
  98         int interactive;
  99
 100         /* overall state */
 101         uiHandleButtonState state;
 102         int cancel, escapecancel, retval;
 103         int applied, appliedinteractive;
 104         wmTimer *flashtimer;
 105
 106         /* edited value */
 107         char *str, *origstr;
 108         double value, origvalue, startvalue;
 109         float vec[3], origvec[3];
 110         int togdual, togonly;
 111         ColorBand *coba;
 112         CurveMapping *cumap;
 113
 114         /* tooltip */
 115         ARegion *tooltip;
 116         wmTimer *tooltiptimer;
 117
 118         /* auto open */
 119         int used_mouse;
 120         wmTimer *autoopentimer;
 121
 122         /* text selection/editing */
 123         int maxlen, selextend, selstartx;
 124
 125         /* number editing / dragging */
 126         int draglastx, draglasty;
 127         int dragstartx, dragstarty;
 128         int dragchange, draglock, dragsel;
 129         float dragf, dragfstart;
 130         CBData *dragcbd;
 131
 132         /* menu open */
 133         uiPopupBlockHandle *menu;
 134         int menuretval;
 135
 136         /* search box */
 137         ARegion *searchbox;
 138
 139         /* post activate */
 140         uiButtonActivateType posttype;
 141         uiBut *postbut;
 142 } uiHandleButtonData;
 143
 144 typedef struct uiAfterFunc {
 145         struct uiAfterFunc *next, *prev;
 146
 147         uiButHandleFunc func;
 148         void *func_arg1;
 149         void *func_arg2;
 150         void *func_arg3;
 151
 152         uiButHandleNFunc funcN;
 153         void *func_argN;
 154
 155         uiButHandleRenameFunc rename_func;
 156         void *rename_arg1;
 157         void *rename_orig;
 158
 159         uiBlockHandleFunc handle_func;
 160         void *handle_func_arg;
 161         int retval;
 162
 163         uiMenuHandleFunc butm_func;
 164         void *butm_func_arg;
 165         int a2;
 166
 167         wmOperatorType *optype;
 168         int opcontext;
 169         PointerRNA *opptr;
 170
 171         PointerRNA rnapoin;
 172         PropertyRNA *rnaprop;
 173
 174         bContextStore *context;
 175
 176         char undostr[512];
 177
 178         int autokey;
 179 } uiAfterFunc;
 180
 181 static int ui_mouse_inside_button(ARegion *ar, uiBut *but, int x, int y);
 182 static void button_activate_state(bContext *C, uiBut *but, uiHandleButtonState state);
 183 static int ui_handler_region_menu(bContext *C, wmEvent *event, void *userdata);
 184 static int ui_handler_popup(bContext *C, wmEvent *event, void *userdata);
 185 static void ui_handler_remove_popup(bContext *C, void *userdata);
 186 static void ui_handle_button_activate(bContext *C, ARegion *ar, uiBut *but, uiButtonActivateType type);
 187 static void button_timers_tooltip_remove(bContext *C, uiBut *but);
 188
 189 /* ******************** menu navigation helpers ************** */
 190
 191 static uiBut *ui_but_prev(uiBut *but)
 192 {
 193         while(but->prev) {
 194                 but= but->prev;
 195                 if(!ELEM4(but->type, LABEL, SEPR, ROUNDBOX, LISTBOX)) return but;
 196         }
 197         return NULL;
 198 }
 199
 200 static uiBut *ui_but_next(uiBut *but)
 201 {
 202         while(but->next) {
 203                 but= but->next;
 204                 if(!ELEM4(but->type, LABEL, SEPR, ROUNDBOX, LISTBOX)) return but;
 205         }
 206         return NULL;
 207 }
 208
 209 static uiBut *ui_but_first(uiBlock *block)
 210 {
 211         uiBut *but;
 212
 213         but= block->buttons.first;
 214         while(but) {
 215                 if(!ELEM4(but->type, LABEL, SEPR, ROUNDBOX, LISTBOX)) return but;
 216                 but= but->next;
 217         }
 218         return NULL;
 219 }
 220
 221 static uiBut *ui_but_last(uiBlock *block)
 222 {
 223         uiBut *but;
 224
 225         but= block->buttons.last;
 226         while(but) {
 227                 if(!ELEM4(but->type, LABEL, SEPR, ROUNDBOX, LISTBOX)) return but;
 228                 but= but->prev;
 229         }
 230         return NULL;
 231 }
 232
 233 /* ********************** button apply/revert ************************/
 234
 235 static ListBase UIAfterFuncs = {NULL, NULL};
 236
 237 static void ui_apply_but_func(bContext *C, uiBut *but)
 238 {
 239         uiAfterFunc *after;
 240         uiBlock *block= but->block;
 241
 242         /* these functions are postponed and only executed after all other
 243          * handling is done, i.e. menus are closed, in order to avoid conflicts
 244          * with these functions removing the buttons we are working with */
 245
 246         if(but->func || but->funcN || block->handle_func || but->rename_func || (but->type == BUTM && block->butm_func) || but->optype || but->rnaprop) {
 247                 after= MEM_callocN(sizeof(uiAfterFunc), "uiAfterFunc");
 248
 249                 after->func= but->func;
 250                 after->func_arg1= but->func_arg1;
 251                 after->func_arg2= but->func_arg2;
 252                 after->func_arg3= but->func_arg3;
 253
 254                 after->funcN= but->funcN;
 255                 after->func_argN= but->func_argN;
 256
 257                 after->rename_func= but->rename_func;
 258                 after->rename_arg1= but->rename_arg1;
 259                 after->rename_orig= but->rename_orig; /* needs free! */
 260
 261                 after->handle_func= block->handle_func;
 262                 after->handle_func_arg= block->handle_func_arg;
 263                 after->retval= but->retval;
 264
 265                 if(but->type == BUTM) {
 266                         after->butm_func= block->butm_func;
 267                         after->butm_func_arg= block->butm_func_arg;
 268                         after->a2= but->a2;
 269                 }
 270
 271                 after->optype= but->optype;
 272                 after->opcontext= but->opcontext;
 273                 after->opptr= but->opptr;
 274
 275                 after->rnapoin= but->rnapoin;
 276                 after->rnaprop= but->rnaprop;
 277
 278                 if(but->context)
 279                         after->context= CTX_store_copy(but->context);
 280
 281                 but->optype= NULL;
 282                 but->opcontext= 0;
 283                 but->opptr= NULL;
 284
 285                 BLI_addtail(&UIAfterFuncs, after);
 286         }
 287 }
 288
 289 static void ui_apply_autokey_undo(bContext *C, uiBut *but)
 290 {
 291         Scene *scene= CTX_data_scene(C);
 292         uiAfterFunc *after;
 293         char *str= NULL;
 294
 295         if ELEM6(but->type, BLOCK, BUT, LABEL, PULLDOWN, ROUNDBOX, LISTBOX);
 296         else {
 297                 /* define which string to use for undo */
 298                 if ELEM(but->type, LINK, INLINK) str= "Add button link";
 299                 else if ELEM(but->type, MENU, ICONTEXTROW) str= but->drawstr;
 300                 else if(but->drawstr[0]) str= but->drawstr;
 301                 else str= but->tip;
 302         }
 303
 304         /* delayed, after all other funcs run, popups are closed, etc */
 305         if(str) {
 306                 after= MEM_callocN(sizeof(uiAfterFunc), "uiAfterFunc");
 307                 BLI_strncpy(after->undostr, str, sizeof(after->undostr));
 308                 BLI_addtail(&UIAfterFuncs, after);
 309         }
 310
 311         /* try autokey */
 312         ui_but_anim_autokey(but, scene, scene->r.cfra);
 313 }
 314
 315 static void ui_apply_but_funcs_after(bContext *C)
 316 {
 317         uiAfterFunc *afterf, after;
 318         ListBase funcs;
 319
 320         /* copy to avoid recursive calls */
 321         funcs= UIAfterFuncs;
 322         UIAfterFuncs.first= UIAfterFuncs.last= NULL;
 323
 324         for(afterf=funcs.first; afterf; afterf=after.next) {
 325                 after= *afterf; /* copy to avoid memleak on exit() */
 326                 BLI_freelinkN(&funcs, afterf);
 327
 328                 if(after.context)
 329                         CTX_store_set(C, after.context);
 330
 331                 if(after.optype)
 332                         WM_operator_name_call(C, after.optype->idname, after.opcontext, after.opptr);
 333                 if(after.opptr) {
 334                         WM_operator_properties_free(after.opptr);
 335                         MEM_freeN(after.opptr);
 336                 }
 337
 338                 if(after.rnapoin.data)
 339                         RNA_property_update(C, &after.rnapoin, after.rnaprop);
 340
 341                 if(after.context) {
 342                         CTX_store_set(C, NULL);
 343                         CTX_store_free(after.context);
 344                 }
 345
 346                 if(after.func)
 347                         after.func(C, after.func_arg1, after.func_arg2);
 348                 if(after.funcN)
 349                         after.funcN(C, after.func_argN, after.func_arg2);
 350
 351                 if(after.handle_func)
 352                         after.handle_func(C, after.handle_func_arg, after.retval);
 353                 if(after.butm_func)
 354                         after.butm_func(C, after.butm_func_arg, after.a2);
 355
 356                 if(after.rename_func)
 357                         after.rename_func(C, after.rename_arg1, after.rename_orig);
 358                 if(after.rename_orig)
 359                         MEM_freeN(after.rename_orig);
 360
 361                 if(after.undostr[0])
 362                         ED_undo_push(C, after.undostr);
 363         }
 364 }
 365
 366 static void ui_apply_but_BUT(bContext *C, uiBut *but, uiHandleButtonData *data)
 367 {
 368         ui_apply_but_func(C, but);
 369
 370         data->retval= but->retval;
 371         data->applied= 1;
 372 }
 373
 374 static void ui_apply_but_BUTM(bContext *C, uiBut *but, uiHandleButtonData *data)
 375 {
 376         ui_set_but_val(but, but->hardmin);
 377         ui_apply_but_func(C, but);
 378
 379         data->retval= but->retval;
 380         data->applied= 1;
 381 }
 382
 383 static void ui_apply_but_BLOCK(bContext *C, uiBut *but, uiHandleButtonData *data)
 384 {
 385         if(but->type == COL) {
 386                 if(but->a1 != -1) // this is not a color picker (weak!)
 387                         ui_set_but_vectorf(but, data->vec);
 388         }
 389         else if(ELEM3(but->type, MENU, ICONROW, ICONTEXTROW))
 390                 ui_set_but_val(but, data->value);
 391
 392         ui_check_but(but);
 393         ui_apply_but_func(C, but);
 394         data->retval= but->retval;
 395         data->applied= 1;
 396 }
 397
 398 static void ui_apply_but_TOG(bContext *C, uiBlock *block, uiBut *but, uiHandleButtonData *data)
 399 {
 400         double value;
 401         int w, lvalue, push;
 402
 403         /* local hack... */
 404         if(but->type==BUT_TOGDUAL && data->togdual) {
 405                 if(but->pointype==SHO)
 406                         but->poin += 2;
 407                 else if(but->pointype==INT)
 408                         but->poin += 4;
 409         }
 410
 411         value= ui_get_but_val(but);
 412         lvalue= (int)value;
 413
 414         if(but->bit) {
 415                 w= BTST(lvalue, but->bitnr);
 416                 if(w) lvalue = BCLR(lvalue, but->bitnr);
 417                 else lvalue = BSET(lvalue, but->bitnr);
 418
 419                 if(but->type==TOGR) {
 420                         if(!data->togonly) {
 421                                 lvalue= 1<<(but->bitnr);
 422
 423                                 ui_set_but_val(but, (double)lvalue);
 424                         }
 425                         else {
 426                                 if(lvalue==0) lvalue= 1<<(but->bitnr);
 427                         }
 428                 }
 429
 430                 ui_set_but_val(but, (double)lvalue);
 431                 if(but->type==ICONTOG || but->type==ICONTOGN) ui_check_but(but);
 432         }
 433         else {
 434
 435                 if(value==0.0) push= 1;
 436                 else push= 0;
 437
 438                 if(ELEM3(but->type, TOGN, ICONTOGN, OPTIONN)) push= !push;
 439                 ui_set_but_val(but, (double)push);
 440                 if(but->type==ICONTOG || but->type==ICONTOGN) ui_check_but(but);
 441         }
 442
 443         /* end local hack... */
 444         if(but->type==BUT_TOGDUAL && data->togdual) {
 445                 if(but->pointype==SHO)
 446                         but->poin -= 2;
 447                 else if(but->pointype==INT)
 448                         but->poin -= 4;
 449         }
 450
 451         ui_apply_but_func(C, but);
 452
 453         data->retval= but->retval;
 454         data->applied= 1;
 455 }
 456
 457 static void ui_apply_but_ROW(bContext *C, uiBlock *block, uiBut *but, uiHandleButtonData *data)
 458 {
 459         uiBut *bt;
 460
 461         ui_set_but_val(but, but->hardmax);
 462
 463         /* states of other row buttons */
 464         for(bt= block->buttons.first; bt; bt= bt->next)
 465                 if(bt!=but && bt->poin==but->poin && ELEM(bt->type, ROW, LISTROW))
 466                         ui_check_but(bt);
 467
 468         ui_apply_but_func(C, but);
 469
 470         data->retval= but->retval;
 471         data->applied= 1;
 472 }
 473
 474 static void ui_apply_but_TEX(bContext *C, uiBut *but, uiHandleButtonData *data)
 475 {
 476         if(!data->str)
 477                 return;
 478
 479         ui_set_but_string(C, but, data->str);
 480         ui_check_but(but);
 481
 482         /* give butfunc the original text too */
 483         /* feature used for bone renaming, channels, etc */
 484         /* afterfunc frees origstr */
 485         but->rename_orig= data->origstr;
 486         data->origstr= NULL;
 487         ui_apply_but_func(C, but);
 488
 489         data->retval= but->retval;
 490         data->applied= 1;
 491 }
 492
 493 static void ui_apply_but_NUM(bContext *C, uiBut *but, uiHandleButtonData *data)
 494 {
 495         if(data->str) {
 496                 if(ui_set_but_string(C, but, data->str)) {
 497                         data->value= ui_get_but_val(but);
 498                 }
 499                 else {
 500                         data->cancel= 1;
 501                         return;
 502                 }
 503         }
 504         else
 505                 ui_set_but_val(but, data->value);
 506
 507         ui_check_but(but);
 508         ui_apply_but_func(C, but);
 509
 510         data->retval= but->retval;
 511         data->applied= 1;
 512 }
 513
 514 static void ui_apply_but_TOG3(bContext *C, uiBut *but, uiHandleButtonData *data)
 515 {
 516         if(but->pointype==SHO ) {
 517                 short *sp= (short *)but->poin;
 518
 519                 if( BTST(sp[1], but->bitnr)) {
 520                         sp[1]= BCLR(sp[1], but->bitnr);
 521                         sp[0]= BCLR(sp[0], but->bitnr);
 522                 }
 523                 else if( BTST(sp[0], but->bitnr)) {
 524                         sp[1]= BSET(sp[1], but->bitnr);
 525                 } else {
 526                         sp[0]= BSET(sp[0], but->bitnr);
 527                 }
 528         }
 529         else {
 530                 if( BTST(*(but->poin+2), but->bitnr)) {
 531                         *(but->poin+2)= BCLR(*(but->poin+2), but->bitnr);
 532                         *(but->poin)= BCLR(*(but->poin), but->bitnr);
 533                 }
 534                 else if( BTST(*(but->poin), but->bitnr)) {
 535                         *(but->poin+2)= BSET(*(but->poin+2), but->bitnr);
 536                 } else {
 537                         *(but->poin)= BSET(*(but->poin), but->bitnr);
 538                 }
 539         }
 540
 541         ui_check_but(but);
 542         ui_apply_but_func(C, but);
 543         data->retval= but->retval;
 544         data->applied= 1;
 545 }
 546
 547 static void ui_apply_but_VEC(bContext *C, uiBut *but, uiHandleButtonData *data)
 548 {
 549         ui_set_but_vectorf(but, data->vec);
 550         ui_check_but(but);
 551         ui_apply_but_func(C, but);
 552
 553         data->retval= but->retval;
 554         data->applied= 1;
 555 }
 556
 557 static void ui_apply_but_COLORBAND(bContext *C, uiBut *but, uiHandleButtonData *data)
 558 {
 559         ui_apply_but_func(C, but);
 560         data->retval= but->retval;
 561         data->applied= 1;
 562 }
 563
 564 static void ui_apply_but_CURVE(bContext *C, uiBut *but, uiHandleButtonData *data)
 565 {
 566         ui_apply_but_func(C, but);
 567         data->retval= but->retval;
 568         data->applied= 1;
 569 }
 570
 571 static void ui_apply_but_IDPOIN(bContext *C, uiBut *but, uiHandleButtonData *data)
 572 {
 573         ui_set_but_string(C, but, data->str);
 574         ui_check_but(but);
 575         ui_apply_but_func(C, but);
 576         data->retval= but->retval;
 577         data->applied= 1;
 578 }
 579
 580 #ifdef INTERNATIONAL
 581 static void ui_apply_but_CHARTAB(bContext *C, uiBut *but, uiHandleButtonData *data)
 582 {
 583         ui_apply_but_func(C, but);
 584         data->retval= but->retval;
 585         data->applied= 1;
 586 }
 587 #endif
 588
 589
 590 static void ui_delete_active_linkline(uiBlock *block)
 591 {
 592         uiBut *but;
 593         uiLink *link;
 594         uiLinkLine *line, *nline;
 595         int a, b;
 596
 597         but= block->buttons.first;
 598         while(but) {
 599                 if(but->type==LINK && but->link) {
 600                         line= but->link->lines.first;
 601                         while(line) {
 602
 603                                 nline= line->next;
 604
 605                                 if(line->flag & UI_SELECT) {
 606                                         BLI_remlink(&but->link->lines, line);
 607
 608                                         link= line->from->link;
 609
 610                                         /* are there more pointers allowed? */
 611                                         if(link->ppoin) {
 612
 613                                                 if(*(link->totlink)==1) {
 614                                                         *(link->totlink)= 0;
 615                                                         MEM_freeN(*(link->ppoin));
 616                                                         *(link->ppoin)= NULL;
 617                                                 }
 618                                                 else {
 619                                                         b= 0;
 620                                                         for(a=0; a< (*(link->totlink)); a++) {
 621
 622                                                                 if( (*(link->ppoin))[a] != line->to->poin ) {
 623                                                                         (*(link->ppoin))[b]= (*(link->ppoin))[a];
 624                                                                         b++;
 625                                                                 }
 626                                                         }
 627                                                         (*(link->totlink))--;
 628                                                 }
 629                                         }
 630                                         else {
 631                                                 *(link->poin)= NULL;
 632                                         }
 633
 634                                         MEM_freeN(line);
 635                                 }
 636                                 line= nline;
 637                         }
 638                 }
 639                 but= but->next;
 640         }
 641 }
 642
 643
 644 static uiLinkLine *ui_is_a_link(uiBut *from, uiBut *to)
 645 {
 646         uiLinkLine *line;
 647         uiLink *link;
 648
 649         link= from->link;
 650         if(link) {
 651                 line= link->lines.first;
 652                 while(line) {
 653                         if(line->from==from && line->to==to) return line;
 654                         line= line->next;
 655                 }
 656         }
 657         return NULL;
 658 }
 659
 660 static void ui_add_link(uiBut *from, uiBut *to)
 661 {
 662         /* in 'from' we have to add a link to 'to' */
 663         uiLink *link;
 664         uiLinkLine *line;
 665         void **oldppoin;
 666         int a;
 667
 668         if( (line= ui_is_a_link(from, to)) ) {
 669                 line->flag |= UI_SELECT;
 670                 ui_delete_active_linkline(from->block);
 671                 printf("already exists, means deletion now\n");
 672                 return;
 673         }
 674
 675         if (from->type==LINK && to->type==INLINK) {
 676                 if( from->link->tocode != (int)to->hardmin ) {
 677                         printf("cannot link\n");
 678                         return;
 679                 }
 680         }
 681         else if(from->type==INLINK && to->type==LINK) {
 682                 if( to->link->tocode == (int)from->hardmin ) {
 683                         printf("cannot link\n");
 684                         return;
 685                 }
 686         }
 687
 688         link= from->link;
 689
 690         /* are there more pointers allowed? */
 691         if(link->ppoin) {
 692                 oldppoin= *(link->ppoin);
 693
 694                 (*(link->totlink))++;
 695                 *(link->ppoin)= MEM_callocN( *(link->totlink)*sizeof(void *), "new link");
 696
 697                 for(a=0; a< (*(link->totlink))-1; a++) {
 698                         (*(link->ppoin))[a]= oldppoin[a];
 699                 }
 700                 (*(link->ppoin))[a]= to->poin;
 701
 702                 if(oldppoin) MEM_freeN(oldppoin);
 703         }
 704         else {
 705                 *(link->poin)= to->poin;
 706         }
 707
 708 }
 709
 710
 711 static void ui_apply_but_LINK(bContext *C, uiBut *but, uiHandleButtonData *data)
 712 {
 713         ARegion *ar= CTX_wm_region(C);
 714         uiBut *bt;
 715
 716         for(bt= but->block->buttons.first; bt; bt= bt->next) {
 717                 if( ui_mouse_inside_button(ar, bt, but->linkto[0]+ar->winrct.xmin, but->linkto[1]+ar->winrct.ymin) )
 718                         break;
 719         }
 720         if(bt && bt!=but) {
 721
 722                 if(but->type==LINK) ui_add_link(but, bt);
 723                 else ui_add_link(bt, but);
 724
 725                 ui_apply_but_func(C, but);
 726                 data->retval= but->retval;
 727         }
 728         data->applied= 1;
 729 }
 730
 731
 732 static void ui_apply_button(bContext *C, uiBlock *block, uiBut *but, uiHandleButtonData *data, int interactive)
 733 {
 734         char *editstr;
 735         double *editval;
 736         float *editvec;
 737         ColorBand *editcoba;
 738         CurveMapping *editcumap;
 739
 740         data->retval= 0;
 741
 742         /* if we cancel and have not applied yet, there is nothing to do,
 743          * otherwise we have to restore the original value again */
 744         if(data->cancel) {
 745                 if(!data->applied)
 746                         return;
 747
 748                 if(data->str) MEM_freeN(data->str);
 749                 data->str= data->origstr;
 750                 data->origstr= NULL;
 751                 data->value= data->origvalue;
 752                 data->origvalue= 0.0;
 753                 VECCOPY(data->vec, data->origvec);
 754                 data->origvec[0]= data->origvec[1]= data->origvec[2]= 0.0f;
 755         }
 756         else {
 757                 /* we avoid applying interactive edits a second time
 758                  * at the end with the appliedinteractive flag */
 759                 if(interactive)
 760                         data->appliedinteractive= 1;
 761                 else if(data->appliedinteractive)
 762                         return;
 763         }
 764
 765         /* ensures we are writing actual values */
 766         editstr= but->editstr;
 767         editval= but->editval;
 768         editvec= but->editvec;
 769         editcoba= but->editcoba;
 770         editcumap= but->editcumap;
 771         but->editstr= NULL;
 772         but->editval= NULL;
 773         but->editvec= NULL;
 774         but->editcoba= NULL;
 775         but->editcumap= NULL;
 776
 777         /* handle different types */
 778         switch(but->type) {
 779                 case BUT:
 780                         ui_apply_but_BUT(C, but, data);
 781                         break;
 782                 case TEX:
 783                 case SEARCH_MENU:
 784                         ui_apply_but_TEX(C, but, data);
 785                         break;
 786                 case TOGBUT:
 787                 case TOG:
 788                 case TOGR:
 789                 case ICONTOG:
 790                 case ICONTOGN:
 791                 case TOGN:
 792                 case BUT_TOGDUAL:
 793                 case OPTION:
 794                 case OPTIONN:
 795                         ui_apply_but_TOG(C, block, but, data);
 796                         break;
 797                 case ROW:
 798                 case LISTROW:
 799                         ui_apply_but_ROW(C, block, but, data);
 800                         break;
 801                 case SCROLL:
 802                 case NUM:
 803                 case NUMABS:
 804                 case SLI:
 805                 case NUMSLI:
 806                         ui_apply_but_NUM(C, but, data);
 807                         break;
 808                 case HSVSLI:
 809                         break;
 810                 case TOG3:
 811                         ui_apply_but_TOG3(C, but, data);
 812                         break;
 813                 case MENU:
 814                 case ICONROW:
 815                 case ICONTEXTROW:
 816                 case BLOCK:
 817                 case PULLDOWN:
 818                 case COL:
 819                         ui_apply_but_BLOCK(C, but, data);
 820                         break;
 821                 case BUTM:
 822                         ui_apply_but_BUTM(C, but, data);
 823                         break;
 824                 case BUT_NORMAL:
 825                 case HSVCUBE:
 826                 case HSVCIRCLE:
 827                         ui_apply_but_VEC(C, but, data);
 828                         break;
 829                 case BUT_COLORBAND:
 830                         ui_apply_but_COLORBAND(C, but, data);
 831                         break;
 832                 case BUT_CURVE:
 833                         ui_apply_but_CURVE(C, but, data);
 834                         break;
 835                 case IDPOIN:
 836                         ui_apply_but_IDPOIN(C, but, data);
 837                         break;
 838 #ifdef INTERNATIONAL
 839                 case CHARTAB:
 840                         ui_apply_but_CHARTAB(C, but, data);
 841                         break;
 842 #endif
 843                 case LINK:
 844                 case INLINK:
 845                         ui_apply_but_LINK(C, but, data);
 846                         break;
 847                 default:
 848                         break;
 849         }
 850
 851         but->editstr= editstr;
 852         but->editval= editval;
 853         but->editvec= editvec;
 854         but->editcoba= editcoba;
 855         but->editcumap= editcumap;
 856 }
 857
 858 /* ******************* copy and paste ********************  */
 859
 860 /* c = copy, v = paste */
 861 static void ui_but_copy_paste(bContext *C, uiBut *but, uiHandleButtonData *data, char mode)
 862 {
 863         static ColorBand but_copypaste_coba = {0};
 864         char buf[UI_MAX_DRAW_STR+1]= {0};
 865         double val;
 866
 867         if(mode=='v' && but->lock)
 868                 return;
 869
 870         if(mode=='v') {
 871                 /* extract first line from clipboard in case of multi-line copies */
 872                 char *p, *pbuf= WM_clipboard_text_get(0);
 873                 p= pbuf;
 874                 if(p) {
 875                         int i = 0;
 876                         while (*p && *p!='\r' && *p!='\n' && i<UI_MAX_DRAW_STR) {
 877                                 buf[i++]=*p;
 878                                 p++;
 879                         }
 880                         buf[i]= 0;
 881                         MEM_freeN(pbuf);
 882                 }
 883         }
 884
 885         /* numeric value */
 886         if ELEM4(but->type, NUM, NUMABS, NUMSLI, HSVSLI) {
 887
 888                 if(but->poin==NULL && but->rnapoin.data==NULL);
 889                 else if(mode=='c') {
 890                         sprintf(buf, "%f", ui_get_but_val(but));
 891                         WM_clipboard_text_set(buf, 0);
 892                 }
 893                 else {
 894                         if (sscanf(buf, " %lf ", &val) == 1) {
 895                                 button_activate_state(C, but, BUTTON_STATE_NUM_EDITING);
 896                                 data->value= val;
 897                                 button_activate_state(C, but, BUTTON_STATE_EXIT);
 898                         }
 899                 }
 900         }
 901
 902         /* RGB triple */
 903         else if(but->type==COL) {
 904                 float rgb[3];
 905
 906                 if(but->poin==NULL && but->rnapoin.data==NULL);
 907                 else if(mode=='c') {
 908
 909                         ui_get_but_vectorf(but, rgb);
 910                         sprintf(buf, "[%f, %f, %f]", rgb[0], rgb[1], rgb[2]);
 911                         WM_clipboard_text_set(buf, 0);
 912
 913                 }
 914                 else {
 915                         if (sscanf(buf, "[%f, %f, %f]", &rgb[0], &rgb[1], &rgb[2]) == 3) {
 916                                 button_activate_state(C, but, BUTTON_STATE_NUM_EDITING);
 917                                 VECCOPY(data->vec, rgb);
 918                                 button_activate_state(C, but, BUTTON_STATE_EXIT);
 919                         }
 920                 }
 921         }
 922
 923         /* text/string and ID data */
 924         else if(ELEM(but->type, TEX, IDPOIN)) {
 925                 uiHandleButtonData *data= but->active;
 926
 927                 if(but->poin==NULL && but->rnapoin.data==NULL);
 928                 else if(mode=='c') {
 929                         button_activate_state(C, but, BUTTON_STATE_TEXT_EDITING);
 930                         BLI_strncpy(buf, data->str, UI_MAX_DRAW_STR);
 931                         WM_clipboard_text_set(data->str, 0);
 932                         data->cancel= 1;
 933                         button_activate_state(C, but, BUTTON_STATE_EXIT);
 934                 }
 935                 else {
 936                         button_activate_state(C, but, BUTTON_STATE_TEXT_EDITING);
 937                         BLI_strncpy(data->str, buf, data->maxlen);
 938                         button_activate_state(C, but, BUTTON_STATE_EXIT);
 939                 }
 940         }
 941         /* colorband (not supported by system clipboard) */
 942         else if(but->type==BUT_COLORBAND) {
 943                 if(mode=='c') {
 944                         if(but->poin)
 945                                 return;
 946
 947                         memcpy(&but_copypaste_coba, but->poin, sizeof(ColorBand));
 948                 }
 949                 else {
 950                         if(but_copypaste_coba.tot==0)
 951                                 return;
 952
 953                         if(!but->poin)
 954                                 but->poin= MEM_callocN(sizeof(ColorBand), "colorband");
 955
 956                         button_activate_state(C, but, BUTTON_STATE_NUM_EDITING);
 957                         memcpy(data->coba, &but_copypaste_coba, sizeof(ColorBand) );
 958                         button_activate_state(C, but, BUTTON_STATE_EXIT);
 959                 }
 960         }
 961 }
 962
 963 /* ************* in-button text selection/editing ************* */
 964
 965 /* return 1 if char ch is special character, otherwise return 0 */
 966 static short test_special_char(char ch)
 967 {
 968         switch(ch) {
 969                 case '\\':
 970                 case '/':
 971                 case '~':
 972                 case '!':
 973                 case '@':
 974                 case '#':
 975                 case '$':
 976                 case '%':
 977                 case '^':
 978                 case '&':
 979                 case '*':
 980                 case '(':
 981                 case ')':
 982                 case '+':
 983                 case '=':
 984                 case '{':
 985                 case '}':
 986                 case '[':
 987                 case ']':
 988                 case ':':
 989                 case ';':
 990                 case '\'':
 991                 case '\"':
 992                 case '<':
 993                 case '>':
 994                 case ',':
 995                 case '.':
 996                 case '?':
 997                 case '_':
 998                 case '-':
 999                 case ' ':
1000                         return 1;
1001                         break;
1002                 default:
1003                         break;
1004         }
1005         return 0;
1006 }
1007
1008 static int ui_textedit_delete_selection(uiBut *but, uiHandleButtonData *data)
1009 {
1010         char *str;
1011         int x, changed;
1012
1013         str= data->str;
1014         changed= (but->selsta != but->selend);
1015
1016         for(x=0; x< strlen(str); x++) {
1017                 if (but->selend + x <= strlen(str) ) {
1018                         str[but->selsta + x]= str[but->selend + x];
1019                 } else {
1020                         str[but->selsta + x]= '\0';
1021                         break;
1022                 }
1023         }
1024
1025         but->pos = but->selend = but->selsta;
1026
1027         return changed;
1028 }
1029
1030 static void ui_textedit_set_cursor_pos(uiBut *but, uiHandleButtonData *data, short x)
1031 {
1032         uiStyle *style= U.uistyles.first;       // XXX pass on as arg
1033         int startx= but->x1;
1034         char *origstr;
1035
1036         uiStyleFontSet(&style->widget);
1037
1038         origstr= MEM_callocN(sizeof(char)*(data->maxlen+1), "ui_textedit origstr");
1039
1040         BLI_strncpy(origstr, but->drawstr, data->maxlen+1);
1041         but->pos= strlen(origstr)-but->ofs;
1042
1043         /* XXX solve generic */
1044         if(but->type==NUM || but->type==NUMSLI)
1045                 startx += 20;
1046
1047         while((BLF_width(origstr+but->ofs) + startx) > x) {
1048                 if (but->pos <= 0) break;
1049                 but->pos--;
1050                 origstr[but->pos+but->ofs] = 0;
1051         }
1052
1053         but->pos -= strlen(but->str);
1054         but->pos += but->ofs;
1055         if(but->pos<0) but->pos= 0;
1056
1057         MEM_freeN(origstr);
1058 }
1059
1060 static void ui_textedit_set_cursor_select(uiBut *but, uiHandleButtonData *data, short x)
1061 {
1062         if (x > data->selstartx) data->selextend = EXTEND_RIGHT;
1063         else if (x < data->selstartx) data->selextend = EXTEND_LEFT;
1064
1065         ui_textedit_set_cursor_pos(but, data, x);
1066
1067         if (data->selextend == EXTEND_RIGHT) but->selend = but->pos;
1068         if (data->selextend == EXTEND_LEFT) but->selsta = but->pos;
1069
1070         ui_check_but(but);
1071 }
1072
1073 static int ui_textedit_type_ascii(uiBut *but, uiHandleButtonData *data, char ascii)
1074 {
1075         char *str;
1076         int len, x, changed= 0;
1077
1078         str= data->str;
1079         len= strlen(str);
1080
1081         if(len-(but->selend - but->selsta)+1 <= data->maxlen) {
1082                 /* type over the current selection */
1083                 if ((but->selend - but->selsta) > 0)
1084                         changed= ui_textedit_delete_selection(but, data);
1085
1086                 len= strlen(str);
1087                 if(len < data->maxlen) {
1088                         for(x= data->maxlen; x>but->pos; x--)
1089                                 str[x]= str[x-1];
1090                         str[but->pos]= ascii;
1091                         str[len+1]= '\0';
1092
1093                         but->pos++;
1094                         changed= 1;
1095                 }
1096         }
1097
1098         return changed;
1099 }
1100
1101 void ui_textedit_move(uiBut *but, uiHandleButtonData *data, int direction, int select, int jump)
1102 {
1103         char *str;
1104         int len;
1105
1106         str= data->str;
1107         len= strlen(str);
1108
1109         if(direction) { /* right*/
1110                 /* if there's a selection */
1111                 if ((but->selend - but->selsta) > 0) {
1112                         /* extend the selection based on the first direction taken */
1113                         if(select) {
1114                                 if (!data->selextend) {
1115                                         data->selextend = EXTEND_RIGHT;
1116                                 }
1117                                 if (data->selextend == EXTEND_RIGHT) {
1118                                         but->selend++;
1119                                         if (but->selend > len) but->selend = len;
1120                                 } else if (data->selextend == EXTEND_LEFT) {
1121                                         but->selsta++;
1122                                         /* if the selection start has gone past the end,
1123                                         * flip them so they're in sync again */
1124                                         if (but->selsta == but->selend) {
1125                                                 but->pos = but->selsta;
1126                                                 data->selextend = EXTEND_RIGHT;
1127                                         }
1128                                 }
1129                         } else {
1130                                 but->selsta = but->pos = but->selend;
1131                                 data->selextend = 0;
1132                         }
1133                 } else {
1134                         if(select) {
1135                                 /* make a selection, starting from the cursor position */
1136                                 but->selsta = but->pos;
1137
1138                                 but->pos++;
1139                                 if(but->pos>strlen(str)) but->pos= strlen(str);
1140
1141                                 but->selend = but->pos;
1142                         } else if(jump) {
1143                                 /* jump betweenn special characters (/,\,_,-, etc.),
1144                                  * look at function test_special_char() for complete
1145                                  * list of special character, ctr -> */
1146                                 while(but->pos < len) {
1147                                         but->pos++;
1148                                         if(test_special_char(str[but->pos])) break;
1149                                 }
1150                         } else {
1151                                 but->pos++;
1152                                 if(but->pos>strlen(str)) but->pos= strlen(str);
1153                         }
1154                 }
1155         }
1156         else { /* left */
1157                 /* if there's a selection */
1158                 if ((but->selend - but->selsta) > 0) {
1159                         /* extend the selection based on the first direction taken */
1160                         if(select) {
1161                                 if (!data->selextend) {
1162                                         data->selextend = EXTEND_LEFT;
1163                                 }
1164                                 if (data->selextend == EXTEND_LEFT) {
1165                                         but->selsta--;
1166                                         if (but->selsta < 0) but->selsta = 0;
1167                                 } else if (data->selextend == EXTEND_RIGHT) {
1168                                         but->selend--;
1169                                         /* if the selection start has gone past the end,
1170                                         * flip them so they're in sync again */
1171                                         if (but->selsta == but->selend) {
1172                                                 but->pos = but->selsta;
1173                                                 data->selextend = EXTEND_LEFT;
1174                                         }
1175                                 }
1176                         } else {
1177                                 but->pos = but->selend = but->selsta;
1178                                 data->selextend = 0;
1179                         }
1180                 } else {
1181                         if(select) {
1182                                 /* make a selection, starting from the cursor position */
1183                                 but->selend = but->pos;
1184
1185                                 but->pos--;
1186                                 if(but->pos<0) but->pos= 0;
1187
1188                                 but->selsta = but->pos;
1189                         } else if(jump) {
1190                                 /* jump betweenn special characters (/,\,_,-, etc.),
1191                                  * look at function test_special_char() for complete
1192                                  * list of special character, ctr -> */
1193                                 while(but->pos > 0){
1194                                         but->pos--;
1195                                         if(test_special_char(str[but->pos])) break;
1196                                 }
1197                         } else {
1198                                 if(but->pos>0) but->pos--;
1199                         }
1200                 }
1201         }
1202 }
1203
1204 void ui_textedit_move_end(uiBut *but, uiHandleButtonData *data, int direction, int select)
1205 {
1206         char *str;
1207
1208         str= data->str;
1209
1210         if(direction) { /* right */
1211                 if(select) {
1212                         but->selsta = but->pos;
1213                         but->selend = strlen(str);
1214                         data->selextend = EXTEND_RIGHT;
1215                 } else {
1216                         but->selsta = but->selend = but->pos= strlen(str);
1217                 }
1218         }
1219         else { /* left */
1220                 if(select) {
1221                         but->selend = but->pos;
1222                         but->selsta = 0;
1223                         data->selextend = EXTEND_LEFT;
1224                 } else {
1225                         but->selsta = but->selend = but->pos= 0;
1226                 }
1227         }
1228 }
1229
1230 static int ui_textedit_delete(uiBut *but, uiHandleButtonData *data, int direction, int all)
1231 {
1232         char *str;
1233         int len, x, changed= 0;
1234
1235         str= data->str;
1236         len= strlen(str);
1237
1238         if(all) {
1239                 if(len) changed=1;
1240                 str[0]= 0;
1241                 but->pos= 0;
1242         }
1243         else if(direction) { /* delete */
1244                 if ((but->selend - but->selsta) > 0) {
1245                         changed= ui_textedit_delete_selection(but, data);
1246                 }
1247                 else if(but->pos>=0 && but->pos<len) {
1248                         for(x=but->pos; x<len; x++)
1249                                 str[x]= str[x+1];
1250                         str[len-1]='\0';
1251                         changed= 1;
1252                 }
1253         }
1254         else { /* backspace */
1255                 if(len!=0) {
1256                         if ((but->selend - but->selsta) > 0) {
1257                                 changed= ui_textedit_delete_selection(but, data);
1258                         }
1259                         else if(but->pos>0) {
1260                                 for(x=but->pos; x<len; x++)
1261                                         str[x-1]= str[x];
1262                                 str[len-1]='\0';
1263
1264                                 but->pos--;
1265                                 changed= 1;
1266                         }
1267                 }
1268         }
1269
1270         return changed;
1271 }
1272
1273 static int ui_textedit_autocomplete(bContext *C, uiBut *but, uiHandleButtonData *data)
1274 {
1275         char *str;
1276         int changed= 1;
1277
1278         str= data->str;
1279
1280         if(data->searchbox)
1281                 ui_searchbox_autocomplete(C, data->searchbox, but, data->str);
1282         else
1283                 but->autocomplete_func(C, str, but->autofunc_arg);
1284
1285         but->pos= strlen(str);
1286         but->selsta= but->selend= but->pos;
1287
1288         return changed;
1289 }
1290
1291 static int ui_textedit_copypaste(uiBut *but, uiHandleButtonData *data, int paste, int copy, int cut)
1292 {
1293         char buf[UI_MAX_DRAW_STR]={0};
1294         char *str, *p, *pbuf;
1295         int len, x, y, i, changed= 0;
1296
1297         str= data->str;
1298         len= strlen(str);
1299
1300         /* paste */
1301         if (paste) {
1302                 /* extract the first line from the clipboard */
1303                 p = pbuf= WM_clipboard_text_get(0);
1304
1305                 if(p && p[0]) {
1306                         i= 0;
1307                         while (*p && *p!='\r' && *p!='\n' && i<UI_MAX_DRAW_STR-1) {
1308                                 buf[i++]=*p;
1309                                 p++;
1310                         }
1311                         buf[i]= 0;
1312
1313                         /* paste over the current selection */
1314                         if ((but->selend - but->selsta) > 0)
1315                                 ui_textedit_delete_selection(but, data);
1316
1317                         for (y=0; y<strlen(buf); y++)
1318                         {
1319                                 /* add contents of buffer */
1320                                 if(len < data->maxlen) {
1321                                         for(x= data->maxlen; x>but->pos; x--)
1322                                                 str[x]= str[x-1];
1323                                         str[but->pos]= buf[y];
1324                                         but->pos++;
1325                                         len++;
1326                                         str[len]= '\0';
1327                                 }
1328                         }
1329
1330                         changed= 1;
1331                 }
1332
1333                 if(pbuf)
1334                         MEM_freeN(pbuf);
1335         }
1336         /* cut & copy */
1337         else if (copy || cut) {
1338                 /* copy the contents to the copypaste buffer */
1339                 for(x= but->selsta; x <= but->selend; x++) {
1340                         if (x==but->selend)
1341                                 buf[x] = '\0';
1342                         else
1343                                 buf[(x - but->selsta)] = str[x];
1344                 }
1345
1346                 WM_clipboard_text_set(buf, 0);
1347
1348                 /* for cut only, delete the selection afterwards */
1349                 if(cut)
1350                         if((but->selend - but->selsta) > 0)
1351                                 changed= ui_textedit_delete_selection(but, data);
1352         }
1353
1354         return changed;
1355 }
1356
1357 static void ui_textedit_begin(bContext *C, uiBut *but, uiHandleButtonData *data)
1358 {
1359         if(data->str) {
1360                 MEM_freeN(data->str);
1361                 data->str= NULL;
1362         }
1363
1364         /* retrieve string */
1365         data->maxlen= ui_get_but_string_max_length(but);
1366         data->str= MEM_callocN(sizeof(char)*(data->maxlen+1), "textedit str");
1367         ui_get_but_string(but, data->str, data->maxlen+1);
1368
1369         data->origstr= BLI_strdup(data->str);
1370         data->selextend= 0;
1371         data->selstartx= 0;
1372
1373         /* set cursor pos to the end of the text */
1374         but->editstr= data->str;
1375         but->pos= strlen(data->str);
1376         but->selsta= 0;
1377         but->selend= strlen(data->str);
1378
1379         /* optional searchbox */
1380         if(but->type==SEARCH_MENU) {
1381                 data->searchbox= ui_searchbox_create(C, data->region, but);
1382                 ui_searchbox_update(C, data->searchbox, but, 1); /* 1= reset */
1383         }
1384
1385         ui_check_but(but);
1386 }
1387
1388 static void ui_textedit_end(bContext *C, uiBut *but, uiHandleButtonData *data)
1389 {
1390         if(but) {
1391                 if(data->searchbox) {
1392                         if(data->cancel==0)
1393                                 ui_searchbox_apply(but, data->searchbox);
1394
1395                         ui_searchbox_free(C, data->searchbox);
1396                         data->searchbox= NULL;
1397                 }
1398
1399                 but->editstr= NULL;
1400                 but->pos= -1;
1401         }
1402 }
1403
1404 static void ui_textedit_next_but(uiBlock *block, uiBut *actbut, uiHandleButtonData *data)
1405 {
1406         uiBut *but;
1407
1408         /* label and roundbox can overlap real buttons (backdrops...) */
1409         if(ELEM4(actbut->type, LABEL, SEPR, ROUNDBOX, LISTBOX))
1410                 return;
1411
1412         for(but= actbut->next; but; but= but->next) {
1413                 if(ELEM7(but->type, TEX, NUM, NUMABS, NUMSLI, HSVSLI, IDPOIN, SEARCH_MENU)) {
1414                         data->postbut= but;
1415                         data->posttype= BUTTON_ACTIVATE_TEXT_EDITING;
1416                         return;
1417                 }
1418         }
1419         for(but= block->buttons.first; but!=actbut; but= but->next) {
1420                 if(ELEM7(but->type, TEX, NUM, NUMABS, NUMSLI, HSVSLI, IDPOIN, SEARCH_MENU)) {
1421                         data->postbut= but;
1422                         data->posttype= BUTTON_ACTIVATE_TEXT_EDITING;
1423                         return;
1424                 }
1425         }
1426 }
1427
1428 static void ui_textedit_prev_but(uiBlock *block, uiBut *actbut, uiHandleButtonData *data)
1429 {
1430         uiBut *but;
1431
1432         /* label and roundbox can overlap real buttons (backdrops...) */
1433         if(ELEM4(actbut->type, LABEL, SEPR, ROUNDBOX, LISTBOX))
1434                 return;
1435
1436         for(but= actbut->prev; but; but= but->prev) {
1437                 if(ELEM7(but->type, TEX, NUM, NUMABS, NUMSLI, HSVSLI, IDPOIN, SEARCH_MENU)) {
1438                         data->postbut= but;
1439                         data->posttype= BUTTON_ACTIVATE_TEXT_EDITING;
1440                         return;
1441                 }
1442         }
1443         for(but= block->buttons.last; but!=actbut; but= but->prev) {
1444                 if(ELEM7(but->type, TEX, NUM, NUMABS, NUMSLI, HSVSLI, IDPOIN, SEARCH_MENU)) {
1445                         data->postbut= but;
1446                         data->posttype= BUTTON_ACTIVATE_TEXT_EDITING;
1447                         return;
1448                 }
1449         }
1450 }
1451
1452
1453 static void ui_do_but_textedit(bContext *C, uiBlock *block, uiBut *but, uiHandleButtonData *data, wmEvent *event)
1454 {
1455         int mx, my, changed= 0, inbox=0, update= 0, retval= WM_UI_HANDLER_CONTINUE;
1456
1457         switch(event->type) {
1458                 case WHEELUPMOUSE:
1459                 case WHEELDOWNMOUSE:
1460                 case MOUSEMOVE:
1461                         if(data->searchbox)
1462                                 ui_searchbox_event(C, data->searchbox, but, event);
1463
1464                         break;
1465                 case RIGHTMOUSE:
1466                 case ESCKEY:
1467                         data->cancel= 1;
1468                         data->escapecancel= 1;
1469                         button_activate_state(C, but, BUTTON_STATE_EXIT);
1470                         retval= WM_UI_HANDLER_BREAK;
1471                         break;
1472                 case LEFTMOUSE: {
1473
1474                         /* exit on LMB only on RELEASE for searchbox, to mimic other popups, and allow multiple menu levels */
1475                         if(data->searchbox)
1476                                 inbox= ui_searchbox_inside(data->searchbox, event->x, event->y);
1477
1478                         if(event->val==KM_PRESS) {
1479                                 mx= event->x;
1480                                 my= event->y;
1481                                 ui_window_to_block(data->region, block, &mx, &my);
1482
1483                                 if ((but->y1 <= my) && (my <= but->y2) && (but->x1 <= mx) && (mx <= but->x2)) {
1484                                         ui_textedit_set_cursor_pos(but, data, mx);
1485                                         but->selsta = but->selend = but->pos;
1486                                         data->selstartx= mx;
1487
1488                                         button_activate_state(C, but, BUTTON_STATE_TEXT_SELECTING);
1489                                         retval= WM_UI_HANDLER_BREAK;
1490                                 }
1491                                 else if(inbox==0) {
1492                                         /* if searchbox, click outside will cancel */
1493                                         if(data->searchbox)
1494                                                 data->cancel= data->escapecancel= 1;
1495                                         button_activate_state(C, but, BUTTON_STATE_EXIT);
1496                                         retval= WM_UI_HANDLER_BREAK;
1497                                 }
1498                         }
1499                         else if(inbox) {
1500                                 button_activate_state(C, but, BUTTON_STATE_EXIT);
1501                                 retval= WM_UI_HANDLER_BREAK;
1502                         }
1503                         break;
1504                 }
1505         }
1506
1507         if(event->val==KM_PRESS) {
1508                 switch (event->type) {
1509                         case VKEY:
1510                         case XKEY:
1511                         case CKEY:
1512                                 if(event->ctrl || event->oskey) {
1513                                         if(event->type == VKEY)
1514                                                 changed= ui_textedit_copypaste(but, data, 1, 0, 0);
1515                                         else if(event->type == CKEY)
1516                                                 changed= ui_textedit_copypaste(but, data, 0, 1, 0);
1517                                         else if(event->type == XKEY)
1518                                                 changed= ui_textedit_copypaste(but, data, 0, 0, 1);
1519
1520                                         retval= WM_UI_HANDLER_BREAK;
1521                                 }
1522                                 break;
1523                         case RIGHTARROWKEY:
1524                                 ui_textedit_move(but, data, 1, event->shift, event->ctrl);
1525                                 retval= WM_UI_HANDLER_BREAK;
1526                                 break;
1527                         case LEFTARROWKEY:
1528                                 ui_textedit_move(but, data, 0, event->shift, event->ctrl);
1529                                 retval= WM_UI_HANDLER_BREAK;
1530                                 break;
1531                         case DOWNARROWKEY:
1532                                 if(data->searchbox) {
1533                                         ui_searchbox_event(C, data->searchbox, but, event);
1534                                         break;
1535                                 }
1536                                 /* pass on purposedly */
1537                         case ENDKEY:
1538                                 ui_textedit_move_end(but, data, 1, event->shift);
1539                                 retval= WM_UI_HANDLER_BREAK;
1540                                 break;
1541                         case UPARROWKEY:
1542                                 if(data->searchbox) {
1543                                         ui_searchbox_event(C, data->searchbox, but, event);
1544                                         break;
1545                                 }
1546                                 /* pass on purposedly */
1547                         case HOMEKEY:
1548                                 ui_textedit_move_end(but, data, 0, event->shift);
1549                                 retval= WM_UI_HANDLER_BREAK;
1550                                 break;
1551                         case PADENTER:
1552                         case RETKEY:
1553                                 button_activate_state(C, but, BUTTON_STATE_EXIT);
1554                                 retval= WM_UI_HANDLER_BREAK;
1555                                 break;
1556                         case DELKEY:
1557                                 changed= ui_textedit_delete(but, data, 1, 0);
1558                                 retval= WM_UI_HANDLER_BREAK;
1559                                 break;
1560
1561                         case BACKSPACEKEY:
1562                                 changed= ui_textedit_delete(but, data, 0, event->shift);
1563                                 retval= WM_UI_HANDLER_BREAK;
1564                                 break;
1565
1566                         case TABKEY:
1567                                 /* there is a key conflict here, we can't tab with autocomplete */
1568                                 if(but->autocomplete_func || data->searchbox) {
1569                                         changed= ui_textedit_autocomplete(C, but, data);
1570                                         update= 1; /* do live update for tab key */
1571                                         retval= WM_UI_HANDLER_BREAK;
1572                                 }
1573                                 /* the hotkey here is not well defined, was G.qual so we check all */
1574                                 else if(event->shift || event->ctrl || event->alt || event->oskey) {
1575                                         ui_textedit_prev_but(block, but, data);
1576                                         button_activate_state(C, but, BUTTON_STATE_EXIT);
1577                                 }
1578                                 else {
1579                                         ui_textedit_next_but(block, but, data);
1580                                         button_activate_state(C, but, BUTTON_STATE_EXIT);
1581                                 }
1582                                 retval= WM_UI_HANDLER_BREAK;
1583                                 break;
1584                 }
1585
1586                 if(event->ascii && (retval == WM_UI_HANDLER_CONTINUE)) {
1587                         changed= ui_textedit_type_ascii(but, data, event->ascii);
1588                         retval= WM_UI_HANDLER_BREAK;
1589                 }
1590         }
1591
1592         if(changed) {
1593                 /* never update while typing for now */
1594                 if(update && data->interactive) ui_apply_button(C, block, but, data, 1);
1595                 else ui_check_but(but);
1596
1597                 if(data->searchbox)
1598                         ui_searchbox_update(C, data->searchbox, but, 1); /* 1 = reset */
1599         }
1600
1601         if(changed || (retval == WM_UI_HANDLER_BREAK))
1602                 ED_region_tag_redraw(data->region);
1603 }
1604
1605 static void ui_do_but_textedit_select(bContext *C, uiBlock *block, uiBut *but, uiHandleButtonData *data, wmEvent *event)
1606 {
1607         int mx, my, retval= WM_UI_HANDLER_CONTINUE;
1608
1609         switch(event->type) {
1610                 case MOUSEMOVE: {
1611                         mx= event->x;
1612                         my= event->y;
1613                         ui_window_to_block(data->region, block, &mx, &my);
1614
1615                         ui_textedit_set_cursor_select(but, data, mx);
1616                         retval= WM_UI_HANDLER_BREAK;
1617                         break;
1618                 }
1619                 case LEFTMOUSE:
1620                         if(event->val == 0)
1621                                 button_activate_state(C, but, BUTTON_STATE_TEXT_EDITING);
1622                         retval= WM_UI_HANDLER_BREAK;
1623                         break;
1624         }
1625
1626         if(retval == WM_UI_HANDLER_BREAK) {
1627                 ui_check_but(but);
1628                 ED_region_tag_redraw(data->region);
1629         }
1630 }
1631
1632 /* ************* number editing for various types ************* */
1633
1634 static void ui_numedit_begin(uiBut *but, uiHandleButtonData *data)
1635 {
1636         float softrange, softmin, softmax;
1637
1638         if(but->type == BUT_CURVE) {
1639                 data->cumap= (CurveMapping*)but->poin;
1640                 but->editcumap= data->coba;
1641         }
1642         else if(but->type == BUT_COLORBAND) {
1643                 data->coba= (ColorBand*)but->poin;
1644                 but->editcoba= data->coba;
1645         }
1646         else if(ELEM3(but->type, BUT_NORMAL, HSVCUBE, HSVCIRCLE)) {
1647                 ui_get_but_vectorf(but, data->origvec);
1648                 VECCOPY(data->vec, data->origvec);
1649                 but->editvec= data->vec;
1650         }
1651         else {
1652                 data->startvalue= ui_get_but_val(but);
1653                 data->origvalue= data->startvalue;
1654                 data->value= data->origvalue;
1655                 but->editval= &data->value;
1656
1657                 softmin= but->softmin;
1658                 softmax= but->softmax;
1659                 softrange= softmax - softmin;
1660
1661                 data->dragfstart= (softrange == 0.0)? 0.0: (data->value - softmin)/softrange;
1662                 data->dragf= data->dragfstart;
1663         }
1664
1665         data->dragchange= 0;
1666         data->draglock= 1;
1667 }
1668
1669 static void ui_numedit_end(uiBut *but, uiHandleButtonData *data)
1670 {
1671         but->editval= NULL;
1672         but->editvec= NULL;
1673         but->editcoba= NULL;
1674         but->editcumap= NULL;
1675
1676         data->dragstartx= 0;
1677         data->draglastx= 0;
1678         data->dragchange= 0;
1679         data->dragcbd= NULL;
1680         data->dragsel= 0;
1681 }
1682
1683 static void ui_numedit_apply(bContext *C, uiBlock *block, uiBut *but, uiHandleButtonData *data)
1684 {
1685         if(data->interactive) ui_apply_button(C, block, but, data, 1);
1686         else ui_check_but(but);
1687
1688         ED_region_tag_redraw(data->region);
1689 }
1690
1691 /* ****************** menu opening for various types **************** */
1692
1693 static void ui_blockopen_begin(bContext *C, uiBut *but, uiHandleButtonData *data)
1694 {
1695         uiBlockCreateFunc func= NULL;
1696         uiBlockHandleCreateFunc handlefunc= NULL;
1697         uiMenuCreateFunc menufunc= NULL;
1698         void *arg= NULL;
1699
1700         switch(but->type) {
1701                 case BLOCK:
1702                 case PULLDOWN:
1703                         if(but->menu_create_func) {
1704                                 menufunc= but->menu_create_func;
1705                                 arg= but->poin;
1706                         }
1707                         else {
1708                                 func= but->block_create_func;
1709                                 arg= but->poin?but->poin:but->func_argN;
1710                         }
1711                         break;
1712                 case MENU:
1713                         if(but->menu_create_func) {
1714                                 menufunc= but->menu_create_func;
1715                                 arg= but->poin;
1716                         }
1717                         else {
1718                                 data->origvalue= ui_get_but_val(but);
1719                                 data->value= data->origvalue;
1720                                 but->editval= &data->value;
1721
1722                                 handlefunc= ui_block_func_MENU;
1723                                 arg= but;
1724                         }
1725                         break;
1726                 case ICONROW:
1727                         handlefunc= ui_block_func_ICONROW;
1728                         arg= but;
1729                         break;
1730                 case ICONTEXTROW:
1731                         handlefunc= ui_block_func_ICONTEXTROW;
1732                         arg= but;
1733                         break;
1734                 case COL:
1735                         ui_get_but_vectorf(but, data->origvec);
1736                         VECCOPY(data->vec, data->origvec);
1737                         but->editvec= data->vec;
1738
1739                         handlefunc= ui_block_func_COL;
1740                         arg= but;
1741                         break;
1742         }
1743
1744         if(func || handlefunc) {
1745                 data->menu= ui_popup_block_create(C, data->region, but, func, handlefunc, arg);
1746                 if(but->block->handle)
1747                         data->menu->popup= but->block->handle->popup;
1748         }
1749         else if(menufunc) {
1750                 data->menu= ui_popup_menu_create(C, data->region, but, menufunc, arg);
1751                 if(but->block->handle)
1752                         data->menu->popup= but->block->handle->popup;
1753         }
1754
1755         /* this makes adjacent blocks auto open from now on */
1756         //if(but->block->auto_open==0) but->block->auto_open= 1;
1757 }
1758
1759 static void ui_blockopen_end(bContext *C, uiBut *but, uiHandleButtonData *data)
1760 {
1761         if(but) {
1762                 but->editval= NULL;
1763                 but->editvec= NULL;
1764
1765                 but->block->auto_open_last= PIL_check_seconds_timer();
1766         }
1767
1768         if(data->menu) {
1769                 ui_popup_block_free(C, data->menu);
1770                 data->menu= NULL;
1771         }
1772 }
1773
1774 /* ***************** events for different button types *************** */
1775
1776 static int ui_do_but_BUT(bContext *C, uiBut *but, uiHandleButtonData *data, wmEvent *event)
1777 {
1778         if(data->state == BUTTON_STATE_HIGHLIGHT) {
1779                 if(event->type == LEFTMOUSE && event->val==KM_PRESS) {
1780                         button_activate_state(C, but, BUTTON_STATE_WAIT_RELEASE);
1781                         return WM_UI_HANDLER_BREAK;
1782                 }
1783                 else if(event->type == LEFTMOUSE && but->block->handle) {
1784                         button_activate_state(C, but, BUTTON_STATE_EXIT);
1785                         return WM_UI_HANDLER_BREAK;
1786                 }
1787                 else if(ELEM(event->type, PADENTER, RETKEY) && event->val==KM_PRESS) {
1788                         button_activate_state(C, but, BUTTON_STATE_WAIT_FLASH);
1789                         return WM_UI_HANDLER_BREAK;
1790                 }
1791         }
1792         else if(data->state == BUTTON_STATE_WAIT_RELEASE) {
1793                 if(event->type == LEFTMOUSE && event->val!=KM_PRESS) {
1794                         if(!(but->flag & UI_SELECT))
1795                                 data->cancel= 1;
1796                         button_activate_state(C, but, BUTTON_STATE_EXIT);
1797                         return WM_UI_HANDLER_BREAK;
1798                 }
1799         }
1800
1801         return WM_UI_HANDLER_CONTINUE;
1802 }
1803
1804 static int ui_do_but_KEYEVT(bContext *C, uiBut *but, uiHandleButtonData *data, wmEvent *event)
1805 {
1806         if(data->state == BUTTON_STATE_HIGHLIGHT) {
1807                 if(ELEM3(event->type, LEFTMOUSE, PADENTER, RETKEY) && event->val==KM_PRESS) {
1808                         button_activate_state(C, but, BUTTON_STATE_WAIT_KEY_EVENT);
1809                         return WM_UI_HANDLER_BREAK;
1810                 }
1811         }
1812         else if(data->state == BUTTON_STATE_WAIT_KEY_EVENT) {
1813                 if(event->type == MOUSEMOVE)
1814                         return WM_UI_HANDLER_CONTINUE;
1815
1816                 if(event->val==KM_PRESS) {
1817                         if(WM_key_event_string(event->type)[0])
1818                                 ui_set_but_val(but, event->type);
1819                         else
1820                                 data->cancel= 1;
1821
1822                         button_activate_state(C, but, BUTTON_STATE_EXIT);
1823                 }
1824         }
1825
1826         return WM_UI_HANDLER_CONTINUE;
1827 }
1828
1829 static int ui_do_but_TEX(bContext *C, uiBlock *block, uiBut *but, uiHandleButtonData *data, wmEvent *event)
1830 {
1831         if(data->state == BUTTON_STATE_HIGHLIGHT) {
1832                 if(ELEM4(event->type, LEFTMOUSE, PADENTER, RETKEY, EVT_BUT_OPEN) && event->val==KM_PRESS) {
1833                         button_activate_state(C, but, BUTTON_STATE_TEXT_EDITING);
1834                         return WM_UI_HANDLER_BREAK;
1835                 }
1836         }
1837         else if(data->state == BUTTON_STATE_TEXT_EDITING) {
1838                 ui_do_but_textedit(C, block, but, data, event);
1839                 return WM_UI_HANDLER_BREAK;
1840         }
1841         else if(data->state == BUTTON_STATE_TEXT_SELECTING) {
1842                 ui_do_but_textedit_select(C, block, but, data, event);
1843                 return WM_UI_HANDLER_BREAK;
1844         }
1845
1846         return WM_UI_HANDLER_CONTINUE;
1847 }
1848
1849 static int ui_do_but_TOG(bContext *C, uiBut *but, uiHandleButtonData *data, wmEvent *event)
1850 {
1851         if(data->state == BUTTON_STATE_HIGHLIGHT) {
1852                 if(ELEM3(event->type, LEFTMOUSE, PADENTER, RETKEY) && event->val==KM_PRESS) {
1853                         data->togdual= event->ctrl;
1854                         data->togonly= !event->shift;
1855                         button_activate_state(C, but, BUTTON_STATE_EXIT);
1856                         return WM_UI_HANDLER_BREAK;
1857                 }
1858         }
1859         return WM_UI_HANDLER_CONTINUE;
1860 }
1861
1862 static int ui_do_but_EXIT(bContext *C, uiBut *but, uiHandleButtonData *data, wmEvent *event)
1863 {
1864         if(data->state == BUTTON_STATE_HIGHLIGHT) {
1865                 if(ELEM3(event->type, LEFTMOUSE, PADENTER, RETKEY) && event->val==KM_PRESS) {
1866                         button_activate_state(C, but, BUTTON_STATE_EXIT);
1867                         return WM_UI_HANDLER_BREAK;
1868                 }
1869         }
1870
1871         return WM_UI_HANDLER_CONTINUE;
1872 }
1873
1874 static int ui_numedit_but_NUM(uiBut *but, uiHandleButtonData *data, float fac, int snap, int mx)
1875 {
1876         float deler, tempf, softmin, softmax, softrange;
1877         int lvalue, temp, changed= 0;
1878
1879         if(mx == data->draglastx)
1880                 return changed;
1881
1882         /* drag-lock - prevent unwanted scroll adjustments */
1883         /* change value (now 3) to adjust threshold in pixels */
1884         if(data->draglock) {
1885                 if(abs(mx-data->dragstartx) <= 3)
1886                         return changed;
1887
1888                 data->draglock= 0;
1889                 data->dragstartx= mx;  /* ignore mouse movement within drag-lock */
1890         }
1891
1892         softmin= but->softmin;
1893         softmax= but->softmax;
1894         softrange= softmax - softmin;
1895
1896         deler= 500;
1897         if(!ui_is_but_float(but)) {
1898                 if((softrange)<100) deler= 200.0;
1899                 if((softrange)<25) deler= 50.0;
1900         }
1901         deler /= fac;
1902
1903         if(ui_is_but_float(but) && softrange > 11) {
1904                 /* non linear change in mouse input- good for high precicsion */
1905                 data->dragf+= (((float)(mx-data->draglastx))/deler) * (fabs(data->dragstartx-mx)*0.002);
1906         } else if (!ui_is_but_float(but) && softrange > 129) { /* only scale large int buttons */
1907                 /* non linear change in mouse input- good for high precicsionm ints need less fine tuning */
1908                 data->dragf+= (((float)(mx-data->draglastx))/deler) * (fabs(data->dragstartx-mx)*0.004);
1909         } else {
1910                 /*no scaling */
1911                 data->dragf+= ((float)(mx-data->draglastx))/deler ;
1912         }
1913
1914         if(data->dragf>1.0) data->dragf= 1.0;
1915         if(data->dragf<0.0) data->dragf= 0.0;
1916         data->draglastx= mx;
1917         tempf= (softmin + data->dragf*softrange);
1918
1919         if(!ui_is_but_float(but)) {
1920                 temp= floor(tempf+.5);
1921
1922                 if(tempf==softmin || tempf==softmax);
1923                 else if(snap) {
1924                         if(snap == 2) temp= 100*(temp/100);
1925                         else temp= 10*(temp/10);
1926                 }
1927
1928                 CLAMP(temp, softmin, softmax);
1929                 lvalue= (int)data->value;
1930
1931                 if(temp != lvalue) {
1932                         data->dragchange= 1;
1933                         data->value= (double)temp;
1934                         changed= 1;
1935                 }
1936         }
1937         else {
1938                 temp= 0;
1939
1940                 if(snap) {
1941                         if(snap == 2) {
1942                                 if(tempf==softmin || tempf==softmax);
1943                                 else if(softrange < 2.10) tempf= 0.01*floor(100.0*tempf);
1944                                 else if(softrange < 21.0) tempf= 0.1*floor(10.0*tempf);
1945                                 else tempf= floor(tempf);
1946                         }
1947                         else {
1948                                 if(tempf==softmin || tempf==softmax);
1949                                 else if(softrange < 2.10) tempf= 0.1*floor(10*tempf);
1950                                 else if(softrange < 21.0) tempf= floor(tempf);
1951                                 else tempf= 10.0*floor(tempf/10.0);
1952                         }
1953                 }
1954
1955                 CLAMP(tempf, softmin, softmax);
1956
1957                 if(tempf != data->value) {
1958                         data->dragchange= 1;
1959                         data->value= tempf;
1960                         changed= 1;
1961                 }
1962         }
1963
1964         return changed;
1965 }
1966
1967 static int ui_do_but_NUM(bContext *C, uiBlock *block, uiBut *but, uiHandleButtonData *data, wmEvent *event)
1968 {
1969         int mx, my, click= 0;
1970         int retval= WM_UI_HANDLER_CONTINUE;
1971
1972         mx= event->x;
1973         my= event->y;
1974         ui_window_to_block(data->region, block, &mx, &my);
1975
1976         if(data->state == BUTTON_STATE_HIGHLIGHT) {
1977                 /* XXX hardcoded keymap check.... */
1978                 if(event->type == WHEELDOWNMOUSE && event->alt) {
1979                         mx= but->x1;
1980                         click= 1;
1981                 }
1982                 else if(event->type == WHEELUPMOUSE && event->alt) {
1983                         mx= but->x2;
1984                         click= 1;
1985                 }
1986                 else if(event->val==KM_PRESS) {
1987                         if(ELEM3(event->type, LEFTMOUSE, PADENTER, RETKEY) && event->ctrl) {
1988                                 button_activate_state(C, but, BUTTON_STATE_TEXT_EDITING);
1989                                 retval= WM_UI_HANDLER_BREAK;
1990                         }
1991                         else if(event->type == LEFTMOUSE) {
1992                                 data->dragstartx= mx;
1993                                 data->draglastx= mx;
1994                                 button_activate_state(C, but, BUTTON_STATE_NUM_EDITING);
1995                                 retval= WM_UI_HANDLER_BREAK;
1996                         }
1997                         else if(ELEM(event->type, PADENTER, RETKEY) && event->val==KM_PRESS)
1998                                 click= 1;
1999                 }
2000
2001         }
2002         else if(data->state == BUTTON_STATE_NUM_EDITING) {
2003                 if(event->type == ESCKEY) {
2004                         data->cancel= 1;
2005                         data->escapecancel= 1;
2006                         button_activate_state(C, but, BUTTON_STATE_EXIT);
2007                 }
2008                 else if(event->type == LEFTMOUSE && event->val!=KM_PRESS) {
2009                         if(data->dragchange)
2010                                 button_activate_state(C, but, BUTTON_STATE_EXIT);
2011                         else
2012                                 click= 1;
2013                 }
2014                 else if(event->type == MOUSEMOVE) {
2015                         float fac;
2016                         int snap;
2017
2018                         fac= 1.0f;
2019                         if(event->shift) fac /= 10.0f;
2020                         if(event->alt) fac /= 20.0f;
2021
2022                         if(event->custom == EVT_DATA_TABLET) {
2023                                 wmTabletData *wmtab= event->customdata;
2024
2025                                 /* de-sensitise based on tablet pressure */
2026                                 if (ELEM(wmtab->Active, DEV_STYLUS, DEV_ERASER))
2027                                         fac *= wmtab->Pressure;
2028                         }
2029
2030                         snap= (event->ctrl)? (event->shift)? 2: 1: 0;
2031
2032                         if(ui_numedit_but_NUM(but, data, fac, snap, mx))
2033                                 ui_numedit_apply(C, block, but, data);
2034                 }
2035                 retval= WM_UI_HANDLER_BREAK;
2036         }
2037         else if(data->state == BUTTON_STATE_TEXT_EDITING) {
2038                 ui_do_but_textedit(C, block, but, data, event);
2039                 retval= WM_UI_HANDLER_BREAK;
2040         }
2041         else if(data->state == BUTTON_STATE_TEXT_SELECTING) {
2042                 ui_do_but_textedit_select(C, block, but, data, event);
2043                 retval= WM_UI_HANDLER_BREAK;
2044         }
2045
2046         if(click) {
2047                 /* we can click on the side arrows to increment/decrement,
2048                  * or click inside to edit the value directly */
2049                 float tempf, softmin, softmax;
2050                 int temp;
2051
2052                 softmin= but->softmin;
2053                 softmax= but->softmax;
2054
2055                 if(!ui_is_but_float(but)) {
2056                         if(mx < (but->x1 + (but->x2 - but->x1)/3 - 3)) {
2057                                 button_activate_state(C, but, BUTTON_STATE_NUM_EDITING);
2058
2059                                 temp= (int)data->value - 1;
2060                                 if(temp>=softmin && temp<=softmax)
2061                                         data->value= (double)temp;
2062                                 else
2063                                         data->cancel= 1;
2064
2065                                 button_activate_state(C, but, BUTTON_STATE_EXIT);
2066                         }
2067                         else if(mx > (but->x1 + (2*(but->x2 - but->x1)/3) + 3)) {
2068                                 button_activate_state(C, but, BUTTON_STATE_NUM_EDITING);
2069
2070                                 temp= (int)data->value + 1;
2071                                 if(temp>=softmin && temp<=softmax)
2072                                         data->value= (double)temp;
2073                                 else
2074                                         data->cancel= 1;
2075
2076                                 button_activate_state(C, but, BUTTON_STATE_EXIT);
2077                         }
2078                         else
2079                                 button_activate_state(C, but, BUTTON_STATE_TEXT_EDITING);
2080                 }
2081                 else {
2082                         if(mx < (but->x1 + (but->x2 - but->x1)/3 - 3)) {
2083                                 button_activate_state(C, but, BUTTON_STATE_NUM_EDITING);
2084
2085                                 tempf= data->value - 0.01*but->a1;
2086                                 if (tempf < softmin) tempf = softmin;
2087                                 data->value= tempf;
2088
2089                                 button_activate_state(C, but, BUTTON_STATE_EXIT);
2090                         }
2091                         else if(mx > but->x1 + (2*((but->x2 - but->x1)/3) + 3)) {
2092                                 button_activate_state(C, but, BUTTON_STATE_NUM_EDITING);
2093
2094                                 tempf= data->value + 0.01*but->a1;
2095                                 if (tempf > softmax) tempf = softmax;
2096                                 data->value= tempf;
2097
2098                                 button_activate_state(C, but, BUTTON_STATE_EXIT);
2099                         }
2100                         else
2101                                 button_activate_state(C, but, BUTTON_STATE_TEXT_EDITING);
2102                 }
2103
2104                 retval= WM_UI_HANDLER_BREAK;
2105         }
2106
2107         return retval;
2108 }
2109
2110 static int ui_numedit_but_SLI(uiBut *but, uiHandleButtonData *data, int shift, int ctrl, int mx)
2111 {
2112         float deler, f, tempf, softmin, softmax, softrange;
2113         int temp, lvalue, changed= 0;
2114
2115         softmin= but->softmin;
2116         softmax= but->softmax;
2117         softrange= softmax - softmin;
2118
2119         if(but->type==NUMSLI) deler= ((but->x2-but->x1) - 5.0*but->aspect);
2120         else if(but->type==HSVSLI) deler= ((but->x2-but->x1)/2 - 5.0*but->aspect);
2121         else if(but->type==SCROLL) {
2122                 int horizontal= (but->x2 - but->x1 > but->y2 - but->y1);
2123                 float size= (horizontal)? (but->x2-but->x1): -(but->y2-but->y1);
2124                 deler= size*(but->softmax - but->softmin)/(but->softmax - but->softmin + but->a1);
2125         }
2126         else deler= (but->x2-but->x1- 5.0*but->aspect);
2127
2128         f= (float)(mx-data->dragstartx)/deler + data->dragfstart;
2129
2130         if(shift)
2131                 f= (f-data->dragfstart)/10.0 + data->dragfstart;
2132
2133         CLAMP(f, 0.0, 1.0);
2134         tempf= softmin + f*softrange;
2135         temp= floor(tempf+.5);
2136
2137         if(ctrl) {
2138                 if(tempf==softmin || tempf==softmax);
2139                 else if(ui_is_but_float(but)) {
2140
2141                         if(shift) {
2142                                 if(tempf==softmin || tempf==softmax);
2143                                 else if(softmax-softmin < 2.10) tempf= 0.01*floor(100.0*tempf);
2144                                 else if(softmax-softmin < 21.0) tempf= 0.1*floor(10.0*tempf);
2145                                 else tempf= floor(tempf);
2146                         }
2147                         else {
2148                                 if(softmax-softmin < 2.10) tempf= 0.1*floor(10*tempf);
2149                                 else if(softmax-softmin < 21.0) tempf= floor(tempf);
2150                                 else tempf= 10.0*floor(tempf/10.0);
2151                         }
2152                 }
2153                 else {
2154                         temp= 10*(temp/10);
2155                         tempf= temp;
2156                 }
2157         }
2158
2159         if(!ui_is_but_float(but)) {
2160                 lvalue= floor(data->value+0.5);
2161
2162                 CLAMP(temp, softmin, softmax);
2163
2164                 if(temp != lvalue) {
2165                         data->value= temp;
2166                         data->dragchange= 1;
2167                         changed= 1;
2168                 }
2169         }
2170         else {
2171                 CLAMP(tempf, softmin, softmax);
2172
2173                 if(tempf != data->value) {
2174                         data->value= tempf;
2175                         data->dragchange= 1;
2176                         changed= 1;
2177                 }
2178         }
2179
2180         return changed;
2181 }
2182
2183 static int ui_do_but_SLI(bContext *C, uiBlock *block, uiBut *but, uiHandleButtonData *data, wmEvent *event)
2184 {
2185         int mx, my, click= 0;
2186         int retval= WM_UI_HANDLER_CONTINUE;
2187
2188         mx= event->x;
2189         my= event->y;
2190         ui_window_to_block(data->region, block, &mx, &my);
2191
2192         if(data->state == BUTTON_STATE_HIGHLIGHT) {
2193                 /* XXX hardcoded keymap check.... */
2194                 if(event->type == WHEELDOWNMOUSE && event->alt) {
2195                         mx= but->x1;
2196                         click= 2;
2197                 }
2198                 else if(event->type == WHEELUPMOUSE && event->alt) {
2199                         mx= but->x2;
2200                         click= 2;
2201                 }
2202                 else if(event->val==KM_PRESS) {
2203                         if(ELEM3(event->type, LEFTMOUSE, PADENTER, RETKEY) && event->ctrl) {
2204                                 button_activate_state(C, but, BUTTON_STATE_TEXT_EDITING);
2205                                 retval= WM_UI_HANDLER_BREAK;
2206                         }
2207                         else if(event->type == LEFTMOUSE) {
2208                                 data->dragstartx= mx;
2209                                 data->draglastx= mx;
2210                                 button_activate_state(C, but, BUTTON_STATE_NUM_EDITING);
2211                                 retval= WM_UI_HANDLER_BREAK;
2212                         }
2213                         else if(ELEM(event->type, PADENTER, RETKEY) && event->val==KM_PRESS)
2214                                 click= 1;
2215                 }
2216         }
2217         else if(data->state == BUTTON_STATE_NUM_EDITING) {
2218                 if(event->type == ESCKEY) {
2219                         data->cancel= 1;
2220                         data->escapecancel= 1;
2221                         button_activate_state(C, but, BUTTON_STATE_EXIT);
2222                 }
2223                 else if(event->type == LEFTMOUSE && event->val!=KM_PRESS) {
2224                         if(data->dragchange)
2225                                 button_activate_state(C, but, BUTTON_STATE_EXIT);
2226                         else
2227                                 click= 1;
2228                 }
2229                 else if(event->type == MOUSEMOVE) {
2230                         if(ui_numedit_but_SLI(but, data, event->shift, event->ctrl, mx))
2231                                 ui_numedit_apply(C, block, but, data);
2232                 }
2233                 retval= WM_UI_HANDLER_BREAK;
2234         }
2235         else if(data->state == BUTTON_STATE_TEXT_EDITING) {
2236                 ui_do_but_textedit(C, block, but, data, event);
2237                 retval= WM_UI_HANDLER_BREAK;
2238         }
2239         else if(data->state == BUTTON_STATE_TEXT_SELECTING) {
2240                 ui_do_but_textedit_select(C, block, but, data, event);
2241                 retval= WM_UI_HANDLER_BREAK;
2242         }
2243
2244         if(click) {
2245                 if (click==2) {
2246                         /* nudge slider to the left or right */
2247                         float f, tempf, softmin, softmax, softrange;
2248                         int temp;
2249
2250                         button_activate_state(C, but, BUTTON_STATE_NUM_EDITING);
2251
2252                         softmin= but->softmin;
2253                         softmax= but->softmax;
2254                         softrange= softmax - softmin;
2255
2256                         tempf= data->value;
2257                         temp= (int)data->value;
2258
2259                         if(but->type==SLI) f= (float)(mx-but->x1)/(but->x2-but->x1);
2260                         else f= (float)(mx- but->x1)/(but->x2-but->x1);
2261
2262                         f= softmin + f*softrange;
2263
2264                         if(!ui_is_but_float(but)) {
2265                                 if(f<temp) temp--;
2266                                 else temp++;
2267
2268                                 if(temp>=softmin && temp<=softmax)
2269                                         data->value= temp;
2270                                 else
2271                                         data->cancel= 1;
2272                         }
2273                         else {
2274                                 if(f<tempf) tempf-=.01;
2275                                 else tempf+=.01;
2276
2277                                 if(tempf>=softmin && tempf<=softmax)
2278                                         data->value= tempf;
2279                                 else
2280                                         data->cancel= 1;
2281                         }
2282
2283                         button_activate_state(C, but, BUTTON_STATE_EXIT);
2284                         retval= WM_UI_HANDLER_BREAK;
2285                 }
2286                 else {
2287                         /* edit the value directly */
2288                         button_activate_state(C, but, BUTTON_STATE_TEXT_EDITING);
2289                         retval= WM_UI_HANDLER_BREAK;
2290                 }
2291         }
2292
2293         return retval;
2294 }
2295
2296 static int ui_do_but_SCROLL(bContext *C, uiBlock *block, uiBut *but, uiHandleButtonData *data, wmEvent *event)
2297 {
2298         int mx, my, click= 0;
2299         int retval= WM_UI_HANDLER_CONTINUE;
2300         int horizontal= (but->x2 - but->x1 > but->y2 - but->y1);
2301
2302         mx= event->x;
2303         my= event->y;
2304         ui_window_to_block(data->region, block, &mx, &my);
2305
2306         if(data->state == BUTTON_STATE_HIGHLIGHT) {
2307                 if(event->val==KM_PRESS) {
2308                         if(event->type == LEFTMOUSE) {
2309                                 if(horizontal) {
2310                                         data->dragstartx= mx;
2311                                         data->draglastx= mx;
2312                                 }
2313                                 else {
2314                                         data->dragstartx= my;
2315                                         data->draglastx= my;
2316                                 }
2317                                 button_activate_state(C, but, BUTTON_STATE_NUM_EDITING);
2318                                 retval= WM_UI_HANDLER_BREAK;
2319                         }
2320                         else if(ELEM(event->type, PADENTER, RETKEY) && event->val==KM_PRESS)
2321                                 click= 1;
2322                 }
2323         }
2324         else if(data->state == BUTTON_STATE_NUM_EDITING) {
2325                 if(event->type == ESCKEY) {
2326                         data->cancel= 1;
2327                         data->escapecancel= 1;
2328                         button_activate_state(C, but, BUTTON_STATE_EXIT);
2329                 }
2330                 else if(event->type == LEFTMOUSE && event->val!=KM_PRESS) {
2331                         button_activate_state(C, but, BUTTON_STATE_EXIT);
2332                 }
2333                 else if(event->type == MOUSEMOVE) {
2334                         if(ui_numedit_but_SLI(but, data, 0, 0, (horizontal)? mx: my))
2335                                 ui_numedit_apply(C, block, but, data);
2336                 }
2337
2338                 retval= WM_UI_HANDLER_BREAK;
2339         }
2340
2341         return retval;
2342 }
2343
2344 static int ui_do_but_BLOCK(bContext *C, uiBut *but, uiHandleButtonData *data, wmEvent *event)
2345 {
2346
2347         if(data->state == BUTTON_STATE_HIGHLIGHT) {
2348                 if(ELEM3(event->type, LEFTMOUSE, PADENTER, RETKEY) && event->val==KM_PRESS) {
2349                         button_activate_state(C, but, BUTTON_STATE_MENU_OPEN);
2350                         return WM_UI_HANDLER_BREAK;
2351                 }
2352                 else if(ELEM3(but->type, MENU, ICONROW, ICONTEXTROW)) {
2353
2354                         if(event->type == WHEELDOWNMOUSE && event->alt) {
2355                                 data->value= ui_step_name_menu(but, -1);
2356                                 button_activate_state(C, but, BUTTON_STATE_EXIT);
2357                                 ui_apply_button(C, but->block, but, data, 1);
2358                                 return WM_UI_HANDLER_BREAK;
2359                         }
2360                         else if(event->type == WHEELUPMOUSE && event->alt) {
2361                                 data->value= ui_step_name_menu(but, 1);
2362                                 button_activate_state(C, but, BUTTON_STATE_EXIT);
2363                                 ui_apply_button(C, but->block, but, data, 1);
2364                                 return WM_UI_HANDLER_BREAK;
2365                         }
2366                 }
2367                 else if(but->type==COL) {
2368                         if( ELEM(event->type, WHEELDOWNMOUSE, WHEELUPMOUSE) && event->alt) {
2369                                 float col[3];
2370
2371                                 ui_get_but_vectorf(but, col);
2372                                 rgb_to_hsv(col[0], col[1], col[2], but->hsv, but->hsv+1, but->hsv+2);
2373
2374                                 if(event->type==WHEELDOWNMOUSE)
2375                                         but->hsv[2]= CLAMPIS(but->hsv[2]-0.05f, 0.0f, 1.0f);
2376                                 else
2377                                         but->hsv[2]= CLAMPIS(but->hsv[2]+0.05f, 0.0f, 1.0f);
2378
2379                                 hsv_to_rgb(but->hsv[0], but->hsv[1], but->hsv[2], data->vec, data->vec+1, data->vec+2);
2380
2381                                 button_activate_state(C, but, BUTTON_STATE_EXIT);
2382                                 ui_apply_button(C, but->block, but, data, 1);
2383                                 return WM_UI_HANDLER_BREAK;
2384                         }
2385                 }
2386         }
2387
2388         return WM_UI_HANDLER_CONTINUE;
2389 }
2390
2391 static int ui_numedit_but_NORMAL(uiBut *but, uiHandleButtonData *data, int mx, int my)
2392 {
2393         float dx, dy, rad, radsq, mrad, *fp;
2394         int mdx, mdy, changed= 1;
2395
2396         /* button is presumed square */
2397         /* if mouse moves outside of sphere, it does negative normal */
2398
2399         fp= data->origvec;
2400         rad= (but->x2 - but->x1);
2401         radsq= rad*rad;
2402
2403         if(fp[2]>0.0f) {
2404                 mdx= (rad*fp[0]);
2405                 mdy= (rad*fp[1]);
2406         }
2407         else if(fp[2]> -1.0f) {
2408                 mrad= rad/sqrt(fp[0]*fp[0] + fp[1]*fp[1]);
2409
2410                 mdx= 2.0f*mrad*fp[0] - (rad*fp[0]);
2411                 mdy= 2.0f*mrad*fp[1] - (rad*fp[1]);
2412         }
2413         else mdx= mdy= 0;
2414
2415         dx= (float)(mx+mdx-data->dragstartx);
2416         dy= (float)(my+mdy-data->dragstarty);
2417
2418         fp= data->vec;
2419         mrad= dx*dx+dy*dy;
2420         if(mrad < radsq) {      /* inner circle */
2421                 fp[0]= dx;
2422                 fp[1]= dy;
2423                 fp[2]= sqrt( radsq-dx*dx-dy*dy );
2424         }
2425         else {  /* outer circle */
2426
2427                 mrad= rad/sqrt(mrad);   // veclen
2428
2429                 dx*= (2.0f*mrad - 1.0f);
2430                 dy*= (2.0f*mrad - 1.0f);
2431
2432                 mrad= dx*dx+dy*dy;
2433                 if(mrad < radsq) {
2434                         fp[0]= dx;
2435                         fp[1]= dy;
2436                         fp[2]= -sqrt( radsq-dx*dx-dy*dy );
2437                 }
2438         }
2439         Normalize(fp);
2440
2441         data->draglastx= mx;
2442         data->draglasty= my;
2443
2444         return changed;
2445 }
2446
2447 static int ui_do_but_NORMAL(bContext *C, uiBlock *block, uiBut *but, uiHandleButtonData *data, wmEvent *event)
2448 {
2449         int mx, my;
2450
2451         mx= event->x;
2452         my= event->y;
2453         ui_window_to_block(data->region, block, &mx, &my);
2454
2455         if(data->state == BUTTON_STATE_HIGHLIGHT) {
2456                 if(event->type==LEFTMOUSE && event->val==KM_PRESS) {
2457                         data->dragstartx= mx;
2458                         data->dragstarty= my;
2459                         data->draglastx= mx;
2460                         data->draglasty= my;
2461                         button_activate_state(C, but, BUTTON_STATE_NUM_EDITING);
2462
2463                         /* also do drag the first time */
2464                         if(ui_numedit_but_NORMAL(but, data, mx, my))
2465                                 ui_numedit_apply(C, block, but, data);
2466
2467                         return WM_UI_HANDLER_BREAK;
2468                 }
2469         }
2470         else if(data->state == BUTTON_STATE_NUM_EDITING) {
2471                 if(event->type == MOUSEMOVE) {
2472                         if(mx!=data->draglastx || my!=data->draglasty) {
2473                                 if(ui_numedit_but_NORMAL(but, data, mx, my))
2474                                         ui_numedit_apply(C, block, but, data);
2475                         }
2476                 }
2477                 else if(event->type==LEFTMOUSE && event->val!=KM_PRESS)
2478                         button_activate_state(C, but, BUTTON_STATE_EXIT);
2479
2480                 return WM_UI_HANDLER_BREAK;
2481         }
2482
2483         return WM_UI_HANDLER_CONTINUE;
2484 }
2485
2486 static int ui_numedit_but_HSVCUBE(uiBut *but, uiHandleButtonData *data, int mx, int my)
2487 {
2488         float x, y;
2489         int changed= 1;
2490
2491         /* relative position within box */
2492         x= ((float)mx-but->x1)/(but->x2-but->x1);
2493         y= ((float)my-but->y1)/(but->y2-but->y1);
2494         CLAMP(x, 0.0, 1.0);
2495         CLAMP(y, 0.0, 1.0);
2496
2497         if(but->a1==0) {
2498                 but->hsv[0]= x;
2499                 but->hsv[2]= y;
2500         }
2501         else if(but->a1==1) {
2502                 but->hsv[0]= x;
2503                 but->hsv[1]= y;
2504         }
2505         else if(but->a1==2) {
2506                 but->hsv[2]= x;
2507                 but->hsv[1]= y;
2508         }
2509         else if(but->a1==3) {
2510                 but->hsv[0]= x;
2511         }
2512         else
2513                 but->hsv[2]= y;
2514
2515         ui_set_but_hsv(but);    // converts to rgb
2516
2517         // update button values and strings
2518         ui_update_block_buts_hsv(but->block, but->hsv);
2519
2520         data->draglastx= mx;
2521         data->draglasty= my;
2522
2523         return changed;
2524 }
2525
2526 static int ui_do_but_HSVCUBE(bContext *C, uiBlock *block, uiBut *but, uiHandleButtonData *data, wmEvent *event)
2527 {
2528         int mx, my;
2529
2530         mx= event->x;
2531         my= event->y;
2532         ui_window_to_block(data->region, block, &mx, &my);
2533
2534         if(data->state == BUTTON_STATE_HIGHLIGHT) {
2535                 if(event->type==LEFTMOUSE && event->val==KM_PRESS) {
2536                         data->dragstartx= mx;
2537                         data->dragstarty= my;
2538                         data->draglastx= mx;
2539                         data->draglasty= my;
2540                         button_activate_state(C, but, BUTTON_STATE_NUM_EDITING);
2541
2542                         /* also do drag the first time */
2543                         if(ui_numedit_but_HSVCUBE(but, data, mx, my))
2544                                 ui_numedit_apply(C, block, but, data);
2545
2546                         return WM_UI_HANDLER_BREAK;
2547                 }
2548         }
2549         else if(data->state == BUTTON_STATE_NUM_EDITING) {
2550                 if(event->type == MOUSEMOVE) {
2551                         if(mx!=data->draglastx || my!=data->draglasty) {
2552                                 if(ui_numedit_but_HSVCUBE(but, data, mx, my))
2553                                         ui_numedit_apply(C, block, but, data);
2554                         }
2555                 }
2556                 else if(event->type==LEFTMOUSE && event->val!=KM_PRESS)
2557                         button_activate_state(C, but, BUTTON_STATE_EXIT);
2558
2559                 return WM_UI_HANDLER_BREAK;
2560         }
2561
2562         return WM_UI_HANDLER_CONTINUE;
2563 }
2564
2565 static int ui_numedit_but_HSVCIRCLE(uiBut *but, uiHandleButtonData *data, int mx, int my)
2566 {
2567         rcti rect;
2568         int changed= 1;
2569
2570         rect.xmin= but->x1; rect.xmax= but->x2;
2571         rect.ymin= but->y1; rect.ymax= but->y2;
2572
2573         ui_hsvcircle_vals_from_pos(but->hsv, but->hsv+1, &rect, (float)mx, (float)my);
2574
2575         ui_set_but_hsv(but);    // converts to rgb
2576
2577         // update button values and strings
2578         // XXX ui_update_block_buts_hsv(but->block, but->hsv);
2579
2580         data->draglastx= mx;
2581         data->draglasty= my;
2582
2583         return changed;
2584 }
2585
2586
2587 static int ui_do_but_HSVCIRCLE(bContext *C, uiBlock *block, uiBut *but, uiHandleButtonData *data, wmEvent *event)
2588 {
2589         int mx, my;
2590
2591         mx= event->x;
2592         my= event->y;
2593         ui_window_to_block(data->region, block, &mx, &my);
2594
2595         if(data->state == BUTTON_STATE_HIGHLIGHT) {
2596                 if(event->type==LEFTMOUSE && event->val==KM_PRESS) {
2597                         data->dragstartx= mx;
2598                         data->dragstarty= my;
2599                         data->draglastx= mx;
2600                         data->draglasty= my;
2601                         button_activate_state(C, but, BUTTON_STATE_NUM_EDITING);
2602
2603                         /* also do drag the first time */
2604                         if(ui_numedit_but_HSVCIRCLE(but, data, mx, my))
2605                                 ui_numedit_apply(C, block, but, data);
2606
2607                         return WM_UI_HANDLER_BREAK;
2608                 }
2609         }
2610         else if(data->state == BUTTON_STATE_NUM_EDITING) {
2611                 /* XXX hardcoded keymap check.... */
2612                 if(event->type == WHEELDOWNMOUSE) {
2613                         but->hsv[2]= CLAMPIS(but->hsv[2]-0.05f, 0.0f, 1.0f);
2614                         ui_set_but_hsv(but);    // converts to rgb
2615                         ui_numedit_apply(C, block, but, data);
2616                 }
2617                 else if(event->type == WHEELUPMOUSE) {
2618                         but->hsv[2]= CLAMPIS(but->hsv[2]+0.05f, 0.0f, 1.0f);
2619                         ui_set_but_hsv(but);    // converts to rgb
2620                         ui_numedit_apply(C, block, but, data);
2621                 }
2622                 else if(event->type == MOUSEMOVE) {
2623                         if(mx!=data->draglastx || my!=data->draglasty) {
2624                                 if(ui_numedit_but_HSVCIRCLE(but, data, mx, my))
2625                                         ui_numedit_apply(C, block, but, data);
2626                         }
2627                 }
2628                 else if(event->type==LEFTMOUSE && event->val!=KM_PRESS)
2629                         button_activate_state(C, but, BUTTON_STATE_EXIT);
2630
2631                 return WM_UI_HANDLER_BREAK;
2632         }
2633
2634         return WM_UI_HANDLER_CONTINUE;
2635 }
2636
2637
2638 static int verg_colorband(const void *a1, const void *a2)
2639 {
2640         const CBData *x1=a1, *x2=a2;
2641
2642         if( x1->pos > x2->pos ) return 1;
2643         else if( x1->pos < x2->pos) return -1;
2644         return WM_UI_HANDLER_CONTINUE;
2645 }
2646
2647 static void ui_colorband_update(ColorBand *coba)
2648 {
2649         int a;
2650
2651         if(coba->tot<2) return;
2652
2653         for(a=0; a<coba->tot; a++) coba->data[a].cur= a;
2654                 qsort(coba->data, coba->tot, sizeof(CBData), verg_colorband);
2655         for(a=0; a<coba->tot; a++) {
2656                 if(coba->data[a].cur==coba->cur) {
2657                         coba->cur= a;
2658                         break;
2659                 }
2660         }
2661 }
2662
2663 static int ui_numedit_but_COLORBAND(uiBut *but, uiHandleButtonData *data, int mx)
2664 {
2665         float dx;
2666         int changed= 0;
2667
2668         if(data->draglastx == mx)
2669                 return changed;
2670
2671         dx= ((float)(mx - data->draglastx))/(but->x2-but->x1);
2672         data->dragcbd->pos += dx;
2673         CLAMP(data->dragcbd->pos, 0.0, 1.0);
2674
2675         ui_colorband_update(data->coba);
2676         data->dragcbd= data->coba->data + data->coba->cur;      /* because qsort */
2677
2678         data->draglastx= mx;
2679         changed= 1;
2680
2681         return changed;
2682 }
2683
2684 static int ui_do_but_COLORBAND(bContext *C, uiBlock *block, uiBut *but, uiHandleButtonData *data, wmEvent *event)
2685 {
2686         ColorBand *coba;
2687         CBData *cbd;
2688         int mx, my, a, xco, mindist= 12;
2689
2690         mx= event->x;
2691         my= event->y;
2692         ui_window_to_block(data->region, block, &mx, &my);
2693
2694         if(data->state == BUTTON_STATE_HIGHLIGHT) {
2695                 if(event->type==LEFTMOUSE && event->val==KM_PRESS) {
2696                         coba= (ColorBand*)but->poin;
2697
2698                         if(event->ctrl) {
2699                                 /* insert new key on mouse location */
2700                                 if(coba->tot < MAXCOLORBAND-1) {
2701                                         float pos= ((float)(mx - but->x1))/(but->x2-but->x1);
2702                                         float col[4];
2703
2704                                         do_colorband(coba, pos, col);   /* executes it */
2705
2706                                         coba->tot++;
2707                                         coba->cur= coba->tot-1;
2708
2709                                         coba->data[coba->cur].r= col[0];
2710                                         coba->data[coba->cur].g= col[1];
2711                                         coba->data[coba->cur].b= col[2];
2712                                         coba->data[coba->cur].a= col[3];
2713                                         coba->data[coba->cur].pos= pos;
2714
2715                                         ui_colorband_update(coba);
2716                                 }
2717
2718                                 button_activate_state(C, but, BUTTON_STATE_EXIT);
2719                         }
2720                         else {
2721                                 data->dragstartx= mx;
2722                                 data->dragstarty= my;
2723                                 data->draglastx= mx;
2724                                 data->draglasty= my;
2725
2726                                 /* activate new key when mouse is close */
2727                                 for(a=0, cbd= coba->data; a<coba->tot; a++, cbd++) {
2728                                         xco= but->x1 + (cbd->pos*(but->x2-but->x1));
2729                                         xco= ABS(xco-mx);
2730                                         if(a==coba->cur) xco+= 5; // selected one disadvantage
2731                                         if(xco<mindist) {
2732                                                 coba->cur= a;
2733                                                 mindist= xco;
2734                                         }
2735                                 }
2736
2737                                 data->dragcbd= coba->data + coba->cur;
2738                                 button_activate_state(C, but, BUTTON_STATE_NUM_EDITING);
2739                         }
2740
2741                         return WM_UI_HANDLER_BREAK;
2742                 }
2743         }
2744         else if(data->state == BUTTON_STATE_NUM_EDITING) {
2745                 if(event->type == MOUSEMOVE) {
2746                         if(mx!=data->draglastx || my!=data->draglasty) {
2747                                 if(ui_numedit_but_COLORBAND(but, data, mx))
2748                                         ui_numedit_apply(C, block, but, data);
2749                         }
2750                 }
2751                 else if(event->type==LEFTMOUSE && event->val!=KM_PRESS)
2752                         button_activate_state(C, but, BUTTON_STATE_EXIT);
2753
2754                 return WM_UI_HANDLER_BREAK;
2755         }
2756
2757         return WM_UI_HANDLER_CONTINUE;
2758 }
2759
2760 static int ui_numedit_but_CURVE(uiBut *but, uiHandleButtonData *data, int snap, int mx, int my)
2761 {
2762         CurveMapping *cumap= data->cumap;
2763         CurveMap *cuma= cumap->cm+cumap->cur;
2764         CurveMapPoint *cmp= cuma->curve;
2765         float fx, fy, zoomx, zoomy, offsx, offsy;
2766         int a, changed= 0;
2767
2768         zoomx= (but->x2-but->x1)/(cumap->curr.xmax-cumap->curr.xmin);
2769         zoomy= (but->y2-but->y1)/(cumap->curr.ymax-cumap->curr.ymin);
2770         offsx= cumap->curr.xmin;
2771         offsy= cumap->curr.ymin;
2772
2773         if(data->dragsel != -1) {
2774                 int moved_point= 0;             /* for ctrl grid, can't use orig coords because of sorting */
2775
2776                 fx= (mx-data->draglastx)/zoomx;
2777                 fy= (my-data->draglasty)/zoomy;
2778                 for(a=0; a<cuma->totpoint; a++) {
2779                         if(cmp[a].flag & SELECT) {
2780                                 float origx= cmp[a].x, origy= cmp[a].y;
2781                                 cmp[a].x+= fx;
2782                                 cmp[a].y+= fy;
2783                                 if(snap) {
2784                                         cmp[a].x= 0.125f*floor(0.5f + 8.0f*cmp[a].x);
2785                                         cmp[a].y= 0.125f*floor(0.5f + 8.0f*cmp[a].y);
2786                                 }
2787                                 if(cmp[a].x!=origx || cmp[a].y!=origy)
2788                                         moved_point= 1;
2789                         }
2790                 }
2791
2792                 curvemapping_changed(cumap, 0); /* no remove doubles */
2793
2794                 if(moved_point) {
2795                         data->draglastx= mx;
2796                         data->draglasty= my;
2797                         changed= 1;
2798                 }
2799
2800                 data->dragchange= 1; /* mark for selection */
2801         }
2802         else {
2803                 fx= (mx-data->draglastx)/zoomx;
2804                 fy= (my-data->draglasty)/zoomy;
2805
2806                 /* clamp for clip */
2807                 if(cumap->flag & CUMA_DO_CLIP) {
2808                         if(cumap->curr.xmin-fx < cumap->clipr.xmin)
2809                                 fx= cumap->curr.xmin - cumap->clipr.xmin;
2810                         else if(cumap->curr.xmax-fx > cumap->clipr.xmax)
2811                                 fx= cumap->curr.xmax - cumap->clipr.xmax;
2812                         if(cumap->curr.ymin-fy < cumap->clipr.ymin)
2813                                 fy= cumap->curr.ymin - cumap->clipr.ymin;
2814                         else if(cumap->curr.ymax-fy > cumap->clipr.ymax)
2815                                 fy= cumap->curr.ymax - cumap->clipr.ymax;
2816                 }
2817
2818                 cumap->curr.xmin-=fx;
2819                 cumap->curr.ymin-=fy;
2820                 cumap->curr.xmax-=fx;
2821                 cumap->curr.ymax-=fy;
2822
2823                 data->draglastx= mx;
2824                 data->draglasty= my;
2825
2826                 changed= 1;
2827         }
2828
2829         return changed;
2830 }
2831
2832 static int ui_do_but_CURVE(bContext *C, uiBlock *block, uiBut *but, uiHandleButtonData *data, wmEvent *event)
2833 {
2834         int mx, my, a, changed= 0;
2835
2836         mx= event->x;
2837         my= event->y;
2838         ui_window_to_block(data->region, block, &mx, &my);
2839
2840         if(data->state == BUTTON_STATE_HIGHLIGHT) {
2841                 if(event->type==LEFTMOUSE && event->val==KM_PRESS) {
2842                         CurveMapping *cumap= (CurveMapping*)but->poin;
2843                         CurveMap *cuma= cumap->cm+cumap->cur;
2844                         CurveMapPoint *cmp= cuma->curve;
2845                         float fx, fy, zoomx, zoomy, offsx, offsy;
2846                         float dist, mindist= 200.0f; // 14 pixels radius
2847                         int sel= -1;
2848
2849                         zoomx= (but->x2-but->x1)/(cumap->curr.xmax-cumap->curr.xmin);
2850                         zoomy= (but->y2-but->y1)/(cumap->curr.ymax-cumap->curr.ymin);
2851                         offsx= cumap->curr.xmin;
2852                         offsy= cumap->curr.ymin;
2853
2854                         if(event->ctrl) {
2855                                 fx= ((float)my - but->x1)/zoomx + offsx;
2856                                 fy= ((float)my - but->y1)/zoomy + offsy;
2857
2858                                 curvemap_insert(cuma, fx, fy);
2859                                 curvemapping_changed(cumap, 0);
2860                                 changed= 1;
2861                         }
2862
2863                         /* check for selecting of a point */
2864                         cmp= cuma->curve;       /* ctrl adds point, new malloc */
2865                         for(a=0; a<cuma->totpoint; a++) {
2866                                 fx= but->x1 + zoomx*(cmp[a].x-offsx);
2867                                 fy= but->y1 + zoomy*(cmp[a].y-offsy);
2868                                 dist= (fx-mx)*(fx-mx) + (fy-my)*(fy-my);
2869                                 if(dist < mindist) {
2870                                         sel= a;
2871                                         mindist= dist;
2872                                 }
2873                         }
2874
2875                         if (sel == -1) {
2876                                 /* if the click didn't select anything, check if it's clicked on the
2877                                  * curve itself, and if so, add a point */
2878                                 fx= ((float)mx - but->x1)/zoomx + offsx;
2879                                 fy= ((float)my - but->y1)/zoomy + offsy;
2880
2881                                 cmp= cuma->table;
2882
2883                                 /* loop through the curve segment table and find what's near the mouse.
2884                                  * 0.05 is kinda arbitrary, but seems to be what works nicely. */
2885                                 for(a=0; a<=CM_TABLE; a++) {
2886                                         if ( ( fabs(fx - cmp[a].x) < (0.05) ) && ( fabs(fy - cmp[a].y) < (0.05) ) ) {
2887
2888                                                 curvemap_insert(cuma, fx, fy);
2889                                                 curvemapping_changed(cumap, 0);
2890
2891                                                 changed= 1;
2892
2893                                                 /* reset cmp back to the curve points again, rather than drawing segments */
2894                                                 cmp= cuma->curve;
2895
2896                                                 /* find newly added point and make it 'sel' */
2897                                                 for(a=0; a<cuma->totpoint; a++)
2898                                                         if(cmp[a].x == fx)
2899                                                                 sel = a;
2900
2901                                                 break;
2902                                         }
2903                                 }
2904                         }
2905
2906                         if(sel!= -1) {
2907                                 /* ok, we move a point */
2908                              &n