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_math.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 #include "ED_keyframing.h"
  55
  56 #include "UI_interface.h"
  57
  58 #include "BLF_api.h"
  59
  60 #include "interface_intern.h"
  61
  62 #include "RNA_access.h"
  63
  64 #include "WM_api.h"
  65 #include "WM_types.h"
  66
  67 /***************** structs and defines ****************/
  68
  69 #define BUTTON_TOOLTIP_DELAY            0.500
  70 #define BUTTON_FLASH_DELAY                      0.020
  71 #define BUTTON_AUTO_OPEN_THRESH         0.3
  72 #define BUTTON_MOUSE_TOWARDS_THRESH     1.0
  73
  74 typedef enum uiButtonActivateType {
  75         BUTTON_ACTIVATE_OVER,
  76         BUTTON_ACTIVATE,
  77         BUTTON_ACTIVATE_APPLY,
  78         BUTTON_ACTIVATE_TEXT_EDITING,
  79         BUTTON_ACTIVATE_OPEN
  80 } uiButtonActivateType;
  81
  82 typedef enum uiHandleButtonState {
  83         BUTTON_STATE_INIT,
  84         BUTTON_STATE_HIGHLIGHT,
  85         BUTTON_STATE_WAIT_FLASH,
  86         BUTTON_STATE_WAIT_RELEASE,
  87         BUTTON_STATE_WAIT_KEY_EVENT,
  88         BUTTON_STATE_NUM_EDITING,
  89         BUTTON_STATE_TEXT_EDITING,
  90         BUTTON_STATE_TEXT_SELECTING,
  91         BUTTON_STATE_MENU_OPEN,
  92         BUTTON_STATE_WAIT_DRAG,
  93         BUTTON_STATE_EXIT
  94 } uiHandleButtonState;
  95
  96 typedef struct uiHandleButtonData {
  97         wmWindowManager *wm;
  98         wmWindow *window;
  99         ARegion *region;
 100
 101         int interactive;
 102
 103         /* overall state */
 104         uiHandleButtonState state;
 105         int cancel, escapecancel, retval;
 106         int applied, appliedinteractive;
 107         wmTimer *flashtimer;
 108
 109         /* edited value */
 110         char *str, *origstr;
 111         double value, origvalue, startvalue;
 112         float vec[3], origvec[3];
 113         int togdual, togonly;
 114         ColorBand *coba;
 115         CurveMapping *cumap;
 116
 117         /* tooltip */
 118         ARegion *tooltip;
 119         wmTimer *tooltiptimer;
 120
 121         /* auto open */
 122         int used_mouse;
 123         wmTimer *autoopentimer;
 124
 125         /* text selection/editing */
 126         int maxlen, selextend, selstartx;
 127
 128         /* number editing / dragging */
 129         int draglastx, draglasty;
 130         int dragstartx, dragstarty;
 131         int dragchange, draglock, dragsel;
 132         float dragf, dragfstart;
 133         CBData *dragcbd;
 134
 135         /* menu open */
 136         uiPopupBlockHandle *menu;
 137         int menuretval;
 138
 139         /* search box */
 140         ARegion *searchbox;
 141
 142         /* post activate */
 143         uiButtonActivateType posttype;
 144         uiBut *postbut;
 145 } uiHandleButtonData;
 146
 147 typedef struct uiAfterFunc {
 148         struct uiAfterFunc *next, *prev;
 149
 150         uiButHandleFunc func;
 151         void *func_arg1;
 152         void *func_arg2;
 153         void *func_arg3;
 154
 155         uiButHandleNFunc funcN;
 156         void *func_argN;
 157
 158         uiButHandleRenameFunc rename_func;
 159         void *rename_arg1;
 160         void *rename_orig;
 161
 162         uiBlockHandleFunc handle_func;
 163         void *handle_func_arg;
 164         int retval;
 165
 166         uiMenuHandleFunc butm_func;
 167         void *butm_func_arg;
 168         int a2;
 169
 170         wmOperatorType *optype;
 171         int opcontext;
 172         PointerRNA *opptr;
 173
 174         PointerRNA rnapoin;
 175         PropertyRNA *rnaprop;
 176
 177         bContextStore *context;
 178
 179         char undostr[512];
 180
 181         int autokey;
 182 } uiAfterFunc;
 183
 184 static int ui_mouse_inside_button(ARegion *ar, uiBut *but, int x, int y);
 185 static void button_activate_state(bContext *C, uiBut *but, uiHandleButtonState state);
 186 static int ui_handler_region_menu(bContext *C, wmEvent *event, void *userdata);
 187 static void ui_handle_button_activate(bContext *C, ARegion *ar, uiBut *but, uiButtonActivateType type);
 188 static void button_timers_tooltip_remove(bContext *C, uiBut *but);
 189
 190 /* ******************** menu navigation helpers ************** */
 191
 192 static uiBut *ui_but_prev(uiBut *but)
 193 {
 194         while(but->prev) {
 195                 but= but->prev;
 196                 if(!ELEM4(but->type, LABEL, SEPR, ROUNDBOX, LISTBOX)) return but;
 197         }
 198         return NULL;
 199 }
 200
 201 static uiBut *ui_but_next(uiBut *but)
 202 {
 203         while(but->next) {
 204                 but= but->next;
 205                 if(!ELEM4(but->type, LABEL, SEPR, ROUNDBOX, LISTBOX)) return but;
 206         }
 207         return NULL;
 208 }
 209
 210 static uiBut *ui_but_first(uiBlock *block)
 211 {
 212         uiBut *but;
 213
 214         but= block->buttons.first;
 215         while(but) {
 216                 if(!ELEM4(but->type, LABEL, SEPR, ROUNDBOX, LISTBOX)) return but;
 217                 but= but->next;
 218         }
 219         return NULL;
 220 }
 221
 222 static uiBut *ui_but_last(uiBlock *block)
 223 {
 224         uiBut *but;
 225
 226         but= block->buttons.last;
 227         while(but) {
 228                 if(!ELEM4(but->type, LABEL, SEPR, ROUNDBOX, LISTBOX)) return but;
 229                 but= but->prev;
 230         }
 231         return NULL;
 232 }
 233
 234 static int ui_is_a_warp_but(uiBut *but)
 235 {
 236         if(U.uiflag & USER_CONTINUOUS_MOUSE)
 237                 if(ELEM(but->type, NUM, NUMABS))
 238                         return TRUE;
 239
 240         return FALSE;
 241 }
 242
 243 /* ********************** button apply/revert ************************/
 244
 245 static ListBase UIAfterFuncs = {NULL, NULL};
 246
 247 static void ui_apply_but_func(bContext *C, uiBut *but)
 248 {
 249         uiAfterFunc *after;
 250         uiBlock *block= but->block;
 251
 252         /* these functions are postponed and only executed after all other
 253          * handling is done, i.e. menus are closed, in order to avoid conflicts
 254          * with these functions removing the buttons we are working with */
 255
 256         if(but->func || but->funcN || block->handle_func || but->rename_func || (but->type == BUTM && block->butm_func) || but->optype || but->rnaprop) {
 257                 after= MEM_callocN(sizeof(uiAfterFunc), "uiAfterFunc");
 258
 259                 if(but->func && ELEM(but, but->func_arg1, but->func_arg2)) {
 260                         /* exception, this will crash due to removed button otherwise */
 261                         but->func(C, but->func_arg1, but->func_arg2);
 262                 }
 263                 else
 264                         after->func= but->func;
 265
 266                 after->func_arg1= but->func_arg1;
 267                 after->func_arg2= but->func_arg2;
 268                 after->func_arg3= but->func_arg3;
 269
 270                 after->funcN= but->funcN;
 271                 after->func_argN= but->func_argN;
 272
 273                 after->rename_func= but->rename_func;
 274                 after->rename_arg1= but->rename_arg1;
 275                 after->rename_orig= but->rename_orig; /* needs free! */
 276
 277                 after->handle_func= block->handle_func;
 278                 after->handle_func_arg= block->handle_func_arg;
 279                 after->retval= but->retval;
 280
 281                 if(but->type == BUTM) {
 282                         after->butm_func= block->butm_func;
 283                         after->butm_func_arg= block->butm_func_arg;
 284                         after->a2= but->a2;
 285                 }
 286
 287                 after->optype= but->optype;
 288                 after->opcontext= but->opcontext;
 289                 after->opptr= but->opptr;
 290
 291                 after->rnapoin= but->rnapoin;
 292                 after->rnaprop= but->rnaprop;
 293
 294                 if(but->context)
 295                         after->context= CTX_store_copy(but->context);
 296
 297                 but->optype= NULL;
 298                 but->opcontext= 0;
 299                 but->opptr= NULL;
 300
 301                 BLI_addtail(&UIAfterFuncs, after);
 302         }
 303 }
 304
 305 static void ui_apply_autokey_undo(bContext *C, uiBut *but)
 306 {
 307         Scene *scene= CTX_data_scene(C);
 308         uiAfterFunc *after;
 309         char *str= NULL;
 310
 311         if(but->flag & UI_BUT_UNDO) {
 312                 /* define which string to use for undo */
 313                 if ELEM(but->type, LINK, INLINK) str= "Add button link";
 314                 else if ELEM(but->type, MENU, ICONTEXTROW) str= but->drawstr;
 315                 else if(but->drawstr[0]) str= but->drawstr;
 316                 else str= but->tip;
 317         }
 318
 319         /* delayed, after all other funcs run, popups are closed, etc */
 320         if(str) {
 321                 after= MEM_callocN(sizeof(uiAfterFunc), "uiAfterFunc");
 322                 BLI_strncpy(after->undostr, str, sizeof(after->undostr));
 323                 BLI_addtail(&UIAfterFuncs, after);
 324         }
 325
 326         /* try autokey */
 327         ui_but_anim_autokey(C, but, scene, scene->r.cfra);
 328 }
 329
 330 static void ui_apply_but_funcs_after(bContext *C)
 331 {
 332         uiAfterFunc *afterf, after;
 333         PointerRNA opptr;
 334         ListBase funcs;
 335
 336         /* copy to avoid recursive calls */
 337         funcs= UIAfterFuncs;
 338         UIAfterFuncs.first= UIAfterFuncs.last= NULL;
 339
 340         for(afterf=funcs.first; afterf; afterf=after.next) {
 341                 after= *afterf; /* copy to avoid memleak on exit() */
 342                 BLI_freelinkN(&funcs, afterf);
 343
 344                 if(after.context)
 345                         CTX_store_set(C, after.context);
 346
 347                 if(after.opptr) {
 348                         /* free in advance to avoid leak on exit */
 349                         opptr= *after.opptr,
 350                         MEM_freeN(after.opptr);
 351                 }
 352
 353                 if(after.optype)
 354                         WM_operator_name_call(C, after.optype->idname, after.opcontext, (after.opptr)? &opptr: NULL);
 355
 356                 if(after.opptr)
 357                         WM_operator_properties_free(&opptr);
 358
 359                 if(after.rnapoin.data)
 360                         RNA_property_update(C, &after.rnapoin, after.rnaprop);
 361
 362                 if(after.context) {
 363                         CTX_store_set(C, NULL);
 364                         CTX_store_free(after.context);
 365                 }
 366
 367                 if(after.func)
 368                         after.func(C, after.func_arg1, after.func_arg2);
 369                 if(after.funcN)
 370                         after.funcN(C, after.func_argN, after.func_arg2);
 371
 372                 if(after.handle_func)
 373                         after.handle_func(C, after.handle_func_arg, after.retval);
 374                 if(after.butm_func)
 375                         after.butm_func(C, after.butm_func_arg, after.a2);
 376
 377                 if(after.rename_func)
 378                         after.rename_func(C, after.rename_arg1, after.rename_orig);
 379                 if(after.rename_orig)
 380                         MEM_freeN(after.rename_orig);
 381
 382                 if(after.undostr[0])
 383                         ED_undo_push(C, after.undostr);
 384         }
 385 }
 386
 387 static void ui_apply_but_BUT(bContext *C, uiBut *but, uiHandleButtonData *data)
 388 {
 389         ui_apply_but_func(C, but);
 390
 391         data->retval= but->retval;
 392         data->applied= 1;
 393 }
 394
 395 static void ui_apply_but_BUTM(bContext *C, uiBut *but, uiHandleButtonData *data)
 396 {
 397         ui_set_but_val(but, but->hardmin);
 398         ui_apply_but_func(C, but);
 399
 400         data->retval= but->retval;
 401         data->applied= 1;
 402 }
 403
 404 static void ui_apply_but_BLOCK(bContext *C, uiBut *but, uiHandleButtonData *data)
 405 {
 406         if(ELEM3(but->type, MENU, ICONROW, ICONTEXTROW))
 407                 ui_set_but_val(but, data->value);
 408
 409         ui_check_but(but);
 410         ui_apply_but_func(C, but);
 411         data->retval= but->retval;
 412         data->applied= 1;
 413 }
 414
 415 static void ui_apply_but_TOG(bContext *C, uiBlock *block, uiBut *but, uiHandleButtonData *data)
 416 {
 417         double value;
 418         int w, lvalue, push;
 419
 420         /* local hack... */
 421         if(but->type==BUT_TOGDUAL && data->togdual) {
 422                 if(but->pointype==SHO)
 423                         but->poin += 2;
 424                 else if(but->pointype==INT)
 425                         but->poin += 4;
 426         }
 427
 428         value= ui_get_but_val(but);
 429         lvalue= (int)value;
 430
 431         if(but->bit) {
 432                 w= BTST(lvalue, but->bitnr);
 433                 if(w) lvalue = BCLR(lvalue, but->bitnr);
 434                 else lvalue = BSET(lvalue, but->bitnr);
 435
 436                 if(but->type==TOGR) {
 437                         if(!data->togonly) {
 438                                 lvalue= 1<<(but->bitnr);
 439
 440                                 ui_set_but_val(but, (double)lvalue);
 441                         }
 442                         else {
 443                                 if(lvalue==0) lvalue= 1<<(but->bitnr);
 444                         }
 445                 }
 446
 447                 ui_set_but_val(but, (double)lvalue);
 448                 if(but->type==ICONTOG || but->type==ICONTOGN) ui_check_but(but);
 449         }
 450         else {
 451
 452                 if(value==0.0) push= 1;
 453                 else push= 0;
 454
 455                 if(ELEM3(but->type, TOGN, ICONTOGN, OPTIONN)) push= !push;
 456                 ui_set_but_val(but, (double)push);
 457                 if(but->type==ICONTOG || but->type==ICONTOGN) ui_check_but(but);
 458         }
 459
 460         /* end local hack... */
 461         if(but->type==BUT_TOGDUAL && data->togdual) {
 462                 if(but->pointype==SHO)
 463                         but->poin -= 2;
 464                 else if(but->pointype==INT)
 465                         but->poin -= 4;
 466         }
 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_ROW(bContext *C, uiBlock *block, uiBut *but, uiHandleButtonData *data)
 475 {
 476         uiBut *bt;
 477
 478         ui_set_but_val(but, but->hardmax);
 479
 480         /* states of other row buttons */
 481         for(bt= block->buttons.first; bt; bt= bt->next)
 482                 if(bt!=but && bt->poin==but->poin && ELEM(bt->type, ROW, LISTROW))
 483                         ui_check_but(bt);
 484
 485         ui_apply_but_func(C, but);
 486
 487         data->retval= but->retval;
 488         data->applied= 1;
 489 }
 490
 491 static void ui_apply_but_TEX(bContext *C, uiBut *but, uiHandleButtonData *data)
 492 {
 493         if(!data->str)
 494                 return;
 495
 496         ui_set_but_string(C, but, data->str);
 497         ui_check_but(but);
 498
 499         /* give butfunc the original text too */
 500         /* feature used for bone renaming, channels, etc */
 501         /* afterfunc frees origstr */
 502         but->rename_orig= data->origstr;
 503         data->origstr= NULL;
 504         ui_apply_but_func(C, but);
 505
 506         data->retval= but->retval;
 507         data->applied= 1;
 508 }
 509
 510 static void ui_apply_but_NUM(bContext *C, uiBut *but, uiHandleButtonData *data)
 511 {
 512         if(data->str) {
 513                 if(ui_set_but_string(C, but, data->str)) {
 514                         data->value= ui_get_but_val(but);
 515                 }
 516                 else {
 517                         data->cancel= 1;
 518                         return;
 519                 }
 520         }
 521         else
 522                 ui_set_but_val(but, data->value);
 523
 524         ui_check_but(but);
 525         ui_apply_but_func(C, but);
 526
 527         data->retval= but->retval;
 528         data->applied= 1;
 529 }
 530
 531 static void ui_apply_but_TOG3(bContext *C, uiBut *but, uiHandleButtonData *data)
 532 {
 533         if(but->pointype==SHO ) {
 534                 short *sp= (short *)but->poin;
 535
 536                 if( BTST(sp[1], but->bitnr)) {
 537                         sp[1]= BCLR(sp[1], but->bitnr);
 538                         sp[0]= BCLR(sp[0], but->bitnr);
 539                 }
 540                 else if( BTST(sp[0], but->bitnr)) {
 541                         sp[1]= BSET(sp[1], but->bitnr);
 542                 } else {
 543                         sp[0]= BSET(sp[0], but->bitnr);
 544                 }
 545         }
 546         else {
 547                 if( BTST(*(but->poin+2), but->bitnr)) {
 548                         *(but->poin+2)= BCLR(*(but->poin+2), but->bitnr);
 549                         *(but->poin)= BCLR(*(but->poin), but->bitnr);
 550                 }
 551                 else if( BTST(*(but->poin), but->bitnr)) {
 552                         *(but->poin+2)= BSET(*(but->poin+2), but->bitnr);
 553                 } else {
 554                         *(but->poin)= BSET(*(but->poin), but->bitnr);
 555                 }
 556         }
 557
 558         ui_check_but(but);
 559         ui_apply_but_func(C, but);
 560         data->retval= but->retval;
 561         data->applied= 1;
 562 }
 563
 564 static void ui_apply_but_VEC(bContext *C, uiBut *but, uiHandleButtonData *data)
 565 {
 566         ui_set_but_vectorf(but, data->vec);
 567         ui_check_but(but);
 568         ui_apply_but_func(C, but);
 569
 570         data->retval= but->retval;
 571         data->applied= 1;
 572 }
 573
 574 static void ui_apply_but_COLORBAND(bContext *C, uiBut *but, uiHandleButtonData *data)
 575 {
 576         ui_apply_but_func(C, but);
 577         data->retval= but->retval;
 578         data->applied= 1;
 579 }
 580
 581 static void ui_apply_but_CURVE(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
 588 static void ui_apply_but_IDPOIN(bContext *C, uiBut *but, uiHandleButtonData *data)
 589 {
 590         ui_set_but_string(C, but, data->str);
 591         ui_check_but(but);
 592         ui_apply_but_func(C, but);
 593         data->retval= but->retval;
 594         data->applied= 1;
 595 }
 596
 597 #ifdef INTERNATIONAL
 598 static void ui_apply_but_CHARTAB(bContext *C, uiBut *but, uiHandleButtonData *data)
 599 {
 600         ui_apply_but_func(C, but);
 601         data->retval= but->retval;
 602         data->applied= 1;
 603 }
 604 #endif
 605
 606 /* ****************** drag drop code *********************** */
 607
 608 static int ui_but_mouse_inside_icon(uiBut *but, ARegion *ar, wmEvent *event)
 609 {
 610         rcti rect;
 611         int x= event->x, y= event->y;
 612
 613         ui_window_to_block(ar, but->block, &x, &y);
 614
 615         rect.xmin= but->x1; rect.xmax= but->x2;
 616         rect.ymin= but->y1; rect.ymax= but->y2;
 617
 618         if(but->imb); /* use button size itself */
 619         else if(but->flag & UI_ICON_LEFT) {
 620                 rect.xmax= rect.xmin + (rect.ymax-rect.ymin);
 621         }
 622         else {
 623                 int delta= (rect.xmax-rect.xmin) - (rect.ymax-rect.ymin);
 624                 rect.xmin += delta/2;
 625                 rect.xmax -= delta/2;
 626         }
 627
 628         return BLI_in_rcti(&rect, x, y);
 629 }
 630
 631 #define UI_DRAG_THRESHOLD       3
 632 static int ui_but_start_drag(bContext *C, uiBut *but, uiHandleButtonData *data, wmEvent *event)
 633 {
 634         /* prevent other WM gestures to start while we try to drag */
 635         WM_gestures_remove(C);
 636
 637         if( ABS(data->dragstartx - event->x) + ABS(data->dragstarty - event->y) > UI_DRAG_THRESHOLD ) {
 638                 wmDrag *drag;
 639
 640                 button_activate_state(C, but, BUTTON_STATE_EXIT);
 641                 data->cancel= 1;
 642
 643                 drag= WM_event_start_drag(C, but->icon, but->dragtype, but->dragpoin, ui_get_but_val(but));
 644                 if(but->imb)
 645                         WM_event_drag_image(drag, but->imb, but->imb_scale, but->x2-but->x1, but->y2-but->y1);
 646                 return 1;
 647         }
 648
 649         return 0;
 650 }
 651
 652 /* ********************** linklines *********************** */
 653
 654 static void ui_delete_active_linkline(uiBlock *block)
 655 {
 656         uiBut *but;
 657         uiLink *link;
 658         uiLinkLine *line, *nline;
 659         int a, b;
 660
 661         but= block->buttons.first;
 662         while(but) {
 663                 if(but->type==LINK && but->link) {
 664                         line= but->link->lines.first;
 665                         while(line) {
 666
 667                                 nline= line->next;
 668
 669                                 if(line->flag & UI_SELECT) {
 670                                         BLI_remlink(&but->link->lines, line);
 671
 672                                         link= line->from->link;
 673
 674                                         /* are there more pointers allowed? */
 675                                         if(link->ppoin) {
 676
 677                                                 if(*(link->totlink)==1) {
 678                                                         *(link->totlink)= 0;
 679                                                         MEM_freeN(*(link->ppoin));
 680                                                         *(link->ppoin)= NULL;
 681                                                 }
 682                                                 else {
 683                                                         b= 0;
 684                                                         for(a=0; a< (*(link->totlink)); a++) {
 685
 686                                                                 if( (*(link->ppoin))[a] != line->to->poin ) {
 687                                                                         (*(link->ppoin))[b]= (*(link->ppoin))[a];
 688                                                                         b++;
 689                                                                 }
 690                                                         }
 691                                                         (*(link->totlink))--;
 692                                                 }
 693                                         }
 694                                         else {
 695                                                 *(link->poin)= NULL;
 696                                         }
 697
 698                                         MEM_freeN(line);
 699                                 }
 700                                 line= nline;
 701                         }
 702                 }
 703                 but= but->next;
 704         }
 705 }
 706
 707
 708 static uiLinkLine *ui_is_a_link(uiBut *from, uiBut *to)
 709 {
 710         uiLinkLine *line;
 711         uiLink *link;
 712
 713         link= from->link;
 714         if(link) {
 715                 line= link->lines.first;
 716                 while(line) {
 717                         if(line->from==from && line->to==to) return line;
 718                         line= line->next;
 719                 }
 720         }
 721         return NULL;
 722 }
 723
 724 static void ui_add_link(uiBut *from, uiBut *to)
 725 {
 726         /* in 'from' we have to add a link to 'to' */
 727         uiLink *link;
 728         uiLinkLine *line;
 729         void **oldppoin;
 730         int a;
 731
 732         if( (line= ui_is_a_link(from, to)) ) {
 733                 line->flag |= UI_SELECT;
 734                 ui_delete_active_linkline(from->block);
 735                 return;
 736         }
 737
 738         if (from->type==INLINK && to->type==INLINK) {
 739                 return;
 740         }
 741         else if (from->type==LINK && to->type==INLINK) {
 742                 if( from->link->tocode != (int)to->hardmin ) {
 743                         return;
 744                 }
 745         }
 746         else if(from->type==INLINK && to->type==LINK) {
 747                 if( to->link->tocode == (int)from->hardmin ) {
 748                         return;
 749                 }
 750         }
 751
 752         link= from->link;
 753
 754         /* are there more pointers allowed? */
 755         if(link->ppoin) {
 756                 oldppoin= *(link->ppoin);
 757
 758                 (*(link->totlink))++;
 759                 *(link->ppoin)= MEM_callocN( *(link->totlink)*sizeof(void *), "new link");
 760
 761                 for(a=0; a< (*(link->totlink))-1; a++) {
 762                         (*(link->ppoin))[a]= oldppoin[a];
 763                 }
 764                 (*(link->ppoin))[a]= to->poin;
 765
 766                 if(oldppoin) MEM_freeN(oldppoin);
 767         }
 768         else {
 769                 *(link->poin)= to->poin;
 770         }
 771
 772 }
 773
 774
 775 static void ui_apply_but_LINK(bContext *C, uiBut *but, uiHandleButtonData *data)
 776 {
 777         ARegion *ar= CTX_wm_region(C);
 778         uiBut *bt;
 779
 780         for(bt= but->block->buttons.first; bt; bt= bt->next) {
 781                 if( ui_mouse_inside_button(ar, bt, but->linkto[0]+ar->winrct.xmin, but->linkto[1]+ar->winrct.ymin) )
 782                         break;
 783         }
 784         if(bt && bt!=but) {
 785
 786                 if(but->type==LINK) ui_add_link(but, bt);
 787                 else ui_add_link(bt, but);
 788
 789                 ui_apply_but_func(C, but);
 790                 data->retval= but->retval;
 791         }
 792         data->applied= 1;
 793 }
 794
 795 static void ui_apply_but_IMAGE(bContext *C, uiBut *but, uiHandleButtonData *data)
 796 {
 797         ui_apply_but_func(C, but);
 798         data->retval= but->retval;
 799         data->applied= 1;
 800 }
 801
 802 static void ui_apply_but_HISTOGRAM(bContext *C, uiBut *but, uiHandleButtonData *data)
 803 {
 804         ui_apply_but_func(C, but);
 805         data->retval= but->retval;
 806         data->applied= 1;
 807 }
 808
 809 static void ui_apply_button(bContext *C, uiBlock *block, uiBut *but, uiHandleButtonData *data, int interactive)
 810 {
 811         char *editstr;
 812         double *editval;
 813         float *editvec;
 814         ColorBand *editcoba;
 815         CurveMapping *editcumap;
 816
 817         data->retval= 0;
 818
 819         /* if we cancel and have not applied yet, there is nothing to do,
 820          * otherwise we have to restore the original value again */
 821         if(data->cancel) {
 822                 if(!data->applied)
 823                         return;
 824
 825                 if(data->str) MEM_freeN(data->str);
 826                 data->str= data->origstr;
 827                 data->origstr= NULL;
 828                 data->value= data->origvalue;
 829                 data->origvalue= 0.0;
 830                 VECCOPY(data->vec, data->origvec);
 831                 data->origvec[0]= data->origvec[1]= data->origvec[2]= 0.0f;
 832         }
 833         else {
 834                 /* we avoid applying interactive edits a second time
 835                  * at the end with the appliedinteractive flag */
 836                 if(interactive)
 837                         data->appliedinteractive= 1;
 838                 else if(data->appliedinteractive)
 839                         return;
 840         }
 841
 842         /* ensures we are writing actual values */
 843         editstr= but->editstr;
 844         editval= but->editval;
 845         editvec= but->editvec;
 846         editcoba= but->editcoba;
 847         editcumap= but->editcumap;
 848         but->editstr= NULL;
 849         but->editval= NULL;
 850         but->editvec= NULL;
 851         but->editcoba= NULL;
 852         but->editcumap= NULL;
 853
 854         /* handle different types */
 855         switch(but->type) {
 856                 case BUT:
 857                         ui_apply_but_BUT(C, but, data);
 858                         break;
 859                 case TEX:
 860                 case SEARCH_MENU:
 861                         ui_apply_but_TEX(C, but, data);
 862                         break;
 863                 case TOGBUT:
 864                 case TOG:
 865                 case TOGR:
 866                 case ICONTOG:
 867                 case ICONTOGN:
 868                 case TOGN:
 869                 case BUT_TOGDUAL:
 870                 case OPTION:
 871                 case OPTIONN:
 872                         ui_apply_but_TOG(C, block, but, data);
 873                         break;
 874                 case ROW:
 875                 case LISTROW:
 876                         ui_apply_but_ROW(C, block, but, data);
 877                         break;
 878                 case SCROLL:
 879                 case NUM:
 880                 case NUMABS:
 881                 case SLI:
 882                 case NUMSLI:
 883                         ui_apply_but_NUM(C, but, data);
 884                         break;
 885                 case HSVSLI:
 886                         break;
 887                 case TOG3:
 888                         ui_apply_but_TOG3(C, but, data);
 889                         break;
 890                 case MENU:
 891                 case ICONROW:
 892                 case ICONTEXTROW:
 893                 case BLOCK:
 894                 case PULLDOWN:
 895                 case COL:
 896                         ui_apply_but_BLOCK(C, but, data);
 897                         break;
 898                 case BUTM:
 899                         ui_apply_but_BUTM(C, but, data);
 900                         break;
 901                 case BUT_NORMAL:
 902                 case HSVCUBE:
 903                 case HSVCIRCLE:
 904                         ui_apply_but_VEC(C, but, data);
 905                         break;
 906                 case BUT_COLORBAND:
 907                         ui_apply_but_COLORBAND(C, but, data);
 908                         break;
 909                 case BUT_CURVE:
 910                         ui_apply_but_CURVE(C, but, data);
 911                         break;
 912                 case IDPOIN:
 913                         ui_apply_but_IDPOIN(C, but, data);
 914                         break;
 915 #ifdef INTERNATIONAL
 916                 case CHARTAB:
 917                         ui_apply_but_CHARTAB(C, but, data);
 918                         break;
 919 #endif
 920                 case KEYEVT:
 921                 case HOTKEYEVT:
 922                         ui_apply_but_BUT(C, but, data);
 923                         break;
 924                 case LINK:
 925                 case INLINK:
 926                         ui_apply_but_LINK(C, but, data);
 927                         break;
 928                 case BUT_IMAGE:
 929                         ui_apply_but_IMAGE(C, but, data);
 930                         break;
 931                 case HISTOGRAM:
 932                         ui_apply_but_HISTOGRAM(C, but, data);
 933                         break;
 934                 default:
 935                         break;
 936         }
 937
 938         but->editstr= editstr;
 939         but->editval= editval;
 940         but->editvec= editvec;
 941         but->editcoba= editcoba;
 942         but->editcumap= editcumap;
 943 }
 944
 945 /* ******************* drop event ********************  */
 946
 947 /* only call if event type is EVT_DROP */
 948 static void ui_but_drop(bContext *C, wmEvent *event, uiBut *but, uiHandleButtonData *data)
 949 {
 950         wmDrag *wmd;
 951         ListBase *drags= event->customdata; /* drop event type has listbase customdata by default */
 952
 953         for(wmd= drags->first; wmd; wmd= wmd->next) {
 954                 if(wmd->type==WM_DRAG_ID) {
 955                         /* align these types with UI_but_active_drop_name */
 956                         if(ELEM3(but->type, TEX, IDPOIN, SEARCH_MENU)) {
 957                                 ID *id= (ID *)wmd->poin;
 958
 959                                 if(but->poin==NULL && but->rnapoin.data==NULL);
 960                                 button_activate_state(C, but, BUTTON_STATE_TEXT_EDITING);
 961                                 BLI_strncpy(data->str, id->name+2, data->maxlen);
 962                                 button_activate_state(C, but, BUTTON_STATE_EXIT);
 963                         }
 964                 }
 965         }
 966
 967 }
 968
 969 /* ******************* copy and paste ********************  */
 970
 971 /* c = copy, v = paste */
 972 static void ui_but_copy_paste(bContext *C, uiBut *but, uiHandleButtonData *data, char mode)
 973 {
 974         static ColorBand but_copypaste_coba = {0};
 975         char buf[UI_MAX_DRAW_STR+1]= {0};
 976         double val;
 977
 978         if(mode=='v' && but->lock)
 979                 return;
 980
 981         if(mode=='v') {
 982                 /* extract first line from clipboard in case of multi-line copies */
 983                 char *p, *pbuf= WM_clipboard_text_get(0);
 984                 p= pbuf;
 985                 if(p) {
 986                         int i = 0;
 987                         while (*p && *p!='\r' && *p!='\n' && i<UI_MAX_DRAW_STR) {
 988                                 buf[i++]=*p;
 989                                 p++;
 990                         }
 991                         buf[i]= 0;
 992                         MEM_freeN(pbuf);
 993                 }
 994         }
 995
 996         /* numeric value */
 997         if ELEM4(but->type, NUM, NUMABS, NUMSLI, HSVSLI) {
 998
 999                 if(but->poin==NULL && but->rnapoin.data==NULL);
1000                 else if(mode=='c') {
1001                         sprintf(buf, "%f", ui_get_but_val(but));
1002                         WM_clipboard_text_set(buf, 0);
1003                 }
1004                 else {
1005                         if (sscanf(buf, " %lf ", &val) == 1) {
1006                                 button_activate_state(C, but, BUTTON_STATE_NUM_EDITING);
1007                                 data->value= val;
1008                                 button_activate_state(C, but, BUTTON_STATE_EXIT);
1009                         }
1010                 }
1011         }
1012
1013         /* RGB triple */
1014         else if(but->type==COL) {
1015                 float rgb[3];
1016
1017                 if(but->poin==NULL && but->rnapoin.data==NULL);
1018                 else if(mode=='c') {
1019
1020                         ui_get_but_vectorf(but, rgb);
1021                         sprintf(buf, "[%f, %f, %f]", rgb[0], rgb[1], rgb[2]);
1022                         WM_clipboard_text_set(buf, 0);
1023
1024                 }
1025                 else {
1026                         if (sscanf(buf, "[%f, %f, %f]", &rgb[0], &rgb[1], &rgb[2]) == 3) {
1027                                 button_activate_state(C, but, BUTTON_STATE_NUM_EDITING);
1028                                 ui_set_but_vectorf(but, rgb);
1029                                 button_activate_state(C, but, BUTTON_STATE_EXIT);
1030                         }
1031                 }
1032         }
1033
1034         /* text/string and ID data */
1035         else if(ELEM(but->type, TEX, IDPOIN)) {
1036                 uiHandleButtonData *data= but->active;
1037
1038                 if(but->poin==NULL && but->rnapoin.data==NULL);
1039                 else if(mode=='c') {
1040                         button_activate_state(C, but, BUTTON_STATE_TEXT_EDITING);
1041                         BLI_strncpy(buf, data->str, UI_MAX_DRAW_STR);
1042                         WM_clipboard_text_set(data->str, 0);
1043                         data->cancel= 1;
1044                         button_activate_state(C, but, BUTTON_STATE_EXIT);
1045                 }
1046                 else {
1047                         button_activate_state(C, but, BUTTON_STATE_TEXT_EDITING);
1048                         BLI_strncpy(data->str, buf, data->maxlen);
1049                         button_activate_state(C, but, BUTTON_STATE_EXIT);
1050                 }
1051         }
1052         /* colorband (not supported by system clipboard) */
1053         else if(but->type==BUT_COLORBAND) {
1054                 if(mode=='c') {
1055                         if(but->poin)
1056                                 return;
1057
1058                         memcpy(&but_copypaste_coba, but->poin, sizeof(ColorBand));
1059                 }
1060                 else {
1061                         if(but_copypaste_coba.tot==0)
1062                                 return;
1063
1064                         if(!but->poin)
1065                                 but->poin= MEM_callocN(sizeof(ColorBand), "colorband");
1066
1067                         button_activate_state(C, but, BUTTON_STATE_NUM_EDITING);
1068                         memcpy(data->coba, &but_copypaste_coba, sizeof(ColorBand) );
1069                         button_activate_state(C, but, BUTTON_STATE_EXIT);
1070                 }
1071         }
1072         /* operator button (any type) */
1073         else if (but->optype) {
1074                 if(mode=='c') {
1075                         PointerRNA *opptr;
1076                         char *str;
1077                         opptr= uiButGetOperatorPtrRNA(but); /* allocated when needed, the button owns it */
1078
1079                         str= WM_operator_pystring(C, but->optype, opptr, 0);
1080
1081                         WM_clipboard_text_set(str, 0);
1082
1083                         MEM_freeN(str);
1084                 }
1085         }
1086 }
1087
1088 /* ************* in-button text selection/editing ************* */
1089
1090 /* return 1 if char ch is special character, otherwise return 0 */
1091 static short test_special_char(char ch)
1092 {
1093         switch(ch) {
1094                 case '\\':
1095                 case '/':
1096                 case '~':
1097                 case '!':
1098                 case '@':
1099                 case '#':
1100                 case '$':
1101                 case '%':
1102                 case '^':
1103                 case '&':
1104                 case '*':
1105                 case '(':
1106                 case ')':
1107                 case '+':
1108                 case '=':
1109                 case '{':
1110                 case '}':
1111                 case '[':
1112                 case ']':
1113                 case ':':
1114                 case ';':
1115                 case '\'':
1116                 case '\"':
1117                 case '<':
1118                 case '>':
1119                 case ',':
1120                 case '.':
1121                 case '?':
1122                 case '_':
1123                 case '-':
1124                 case ' ':
1125                         return 1;
1126                         break;
1127                 default:
1128                         break;
1129         }
1130         return 0;
1131 }
1132
1133 static int ui_textedit_delete_selection(uiBut *but, uiHandleButtonData *data)
1134 {
1135         char *str= data->str;
1136         int len= strlen(str);
1137         int change= 0;
1138         if(but->selsta != but->selend && len) {
1139                 memmove( str+but->selsta, str+but->selend, len+1 );
1140                 change= 1;
1141         }
1142
1143         but->pos = but->selend = but->selsta;
1144         return change;
1145 }
1146
1147 static void ui_textedit_set_cursor_pos(uiBut *but, uiHandleButtonData *data, short x)
1148 {
1149         uiStyle *style= U.uistyles.first;       // XXX pass on as arg
1150         int startx= but->x1;
1151         char *origstr;
1152
1153         uiStyleFontSet(&style->widget);
1154
1155         origstr= MEM_callocN(sizeof(char)*data->maxlen, "ui_textedit origstr");
1156
1157         BLI_strncpy(origstr, but->drawstr, data->maxlen);
1158         but->pos= strlen(origstr)-but->ofs;
1159
1160         /* XXX solve generic */
1161         if(but->type==NUM || but->type==NUMSLI)
1162                 startx += (int)(0.5f*(but->y2 - but->y1));
1163         else if(ELEM(but->type, TEX, SEARCH_MENU)) {
1164                 startx += 5;
1165                 if (but->flag & UI_HAS_ICON)
1166                         startx += 16;
1167         }
1168
1169         /* XXX does not take zoom level into account */
1170         while((BLF_width(origstr+but->ofs) + startx) > x) {
1171                 if (but->pos <= 0) break;
1172                 but->pos--;
1173                 origstr[but->pos+but->ofs] = 0;
1174         }
1175
1176         but->pos += but->ofs;
1177         if(but->pos<0) but->pos= 0;
1178
1179         MEM_freeN(origstr);
1180 }
1181
1182 static void ui_textedit_set_cursor_select(uiBut *but, uiHandleButtonData *data, short x)
1183 {
1184         if (x > data->selstartx) data->selextend = EXTEND_RIGHT;
1185         else if (x < data->selstartx) data->selextend = EXTEND_LEFT;
1186
1187         ui_textedit_set_cursor_pos(but, data, x);
1188
1189         if (data->selextend == EXTEND_RIGHT) but->selend = but->pos;
1190         if (data->selextend == EXTEND_LEFT) but->selsta = but->pos;
1191
1192         ui_check_but(but);
1193 }
1194
1195 static int ui_textedit_type_ascii(uiBut *but, uiHandleButtonData *data, char ascii)
1196 {
1197         char *str;
1198         int len, x, changed= 0;
1199
1200         str= data->str;
1201         len= strlen(str);
1202
1203         if(len-(but->selend - but->selsta)+1 <= data->maxlen) {
1204                 /* type over the current selection */
1205                 if ((but->selend - but->selsta) > 0)
1206                         changed= ui_textedit_delete_selection(but, data);
1207
1208                 len= strlen(str);
1209                 if(len+1 < data->maxlen) {
1210                         for(x= data->maxlen; x>but->pos; x--)
1211                                 str[x]= str[x-1];
1212                         str[but->pos]= ascii;
1213                         str[len+1]= '\0';
1214
1215                         but->pos++;
1216                         changed= 1;
1217                 }
1218         }
1219
1220         return changed;
1221 }
1222
1223 void ui_textedit_move(uiBut *but, uiHandleButtonData *data, int direction, int select, int jump)
1224 {
1225         char *str;
1226         int len;
1227
1228         str= data->str;
1229         len= strlen(str);
1230
1231         if(direction) { /* right*/
1232                 /* if there's a selection */
1233                 if ((but->selend - but->selsta) > 0) {
1234                         /* extend the selection based on the first direction taken */
1235                         if(select) {
1236                                 if (!data->selextend) {
1237                                         data->selextend = EXTEND_RIGHT;
1238                                 }
1239                                 if (data->selextend == EXTEND_RIGHT) {
1240                                         but->selend++;
1241                                         if (but->selend > len) but->selend = len;
1242                                 } else if (data->selextend == EXTEND_LEFT) {
1243                                         but->selsta++;
1244                                         /* if the selection start has gone past the end,
1245                                         * flip them so they're in sync again */
1246                                         if (but->selsta == but->selend) {
1247                                                 but->pos = but->selsta;
1248                                                 data->selextend = EXTEND_RIGHT;
1249                                         }
1250                                 }
1251                         } else {
1252                                 but->selsta = but->pos = but->selend;
1253                                 data->selextend = 0;
1254                         }
1255                 } else {
1256                         if(select) {
1257                                 /* make a selection, starting from the cursor position */
1258                                 but->selsta = but->pos;
1259
1260                                 but->pos++;
1261                                 if(but->pos>strlen(str)) but->pos= strlen(str);
1262
1263                                 but->selend = but->pos;
1264                         } else if(jump) {
1265                                 /* jump betweenn special characters (/,\,_,-, etc.),
1266                                  * look at function test_special_char() for complete
1267                                  * list of special character, ctr -> */
1268                                 while(but->pos < len) {
1269                                         but->pos++;
1270                                         if(test_special_char(str[but->pos])) break;
1271                                 }
1272                         } else {
1273                                 but->pos++;
1274                                 if(but->pos>strlen(str)) but->pos= strlen(str);
1275                         }
1276                 }
1277         }
1278         else { /* left */
1279                 /* if there's a selection */
1280                 if ((but->selend - but->selsta) > 0) {
1281                         /* extend the selection based on the first direction taken */
1282                         if(select) {
1283                                 if (!data->selextend) {
1284                                         data->selextend = EXTEND_LEFT;
1285                                 }
1286                                 if (data->selextend == EXTEND_LEFT) {
1287                                         but->selsta--;
1288                                         if (but->selsta < 0) but->selsta = 0;
1289                                 } else if (data->selextend == EXTEND_RIGHT) {
1290                                         but->selend--;
1291                                         /* if the selection start has gone past the end,
1292                                         * flip them so they're in sync again */
1293                                         if (but->selsta == but->selend) {
1294                                                 but->pos = but->selsta;
1295                                                 data->selextend = EXTEND_LEFT;
1296                                         }
1297                                 }
1298                         } else {
1299                                 but->pos = but->selend = but->selsta;
1300                                 data->selextend = 0;
1301                         }
1302                 } else {
1303                         if(select) {
1304                                 /* make a selection, starting from the cursor position */
1305                                 but->selend = but->pos;
1306
1307                                 but->pos--;
1308                                 if(but->pos<0) but->pos= 0;
1309
1310                                 but->selsta = but->pos;
1311                         } else if(jump) {
1312                                 /* jump betweenn special characters (/,\,_,-, etc.),
1313                                  * look at function test_special_char() for complete
1314                                  * list of special character, ctr -> */
1315                                 while(but->pos > 0){
1316                                         but->pos--;
1317                                         if(test_special_char(str[but->pos])) break;
1318                                 }
1319                         } else {
1320                                 if(but->pos>0) but->pos--;
1321                         }
1322                 }
1323         }
1324 }
1325
1326 void ui_textedit_move_end(uiBut *but, uiHandleButtonData *data, int direction, int select)
1327 {
1328         char *str;
1329
1330         str= data->str;
1331
1332         if(direction) { /* right */
1333                 if(select) {
1334                         but->selsta = but->pos;
1335                         but->selend = strlen(str);
1336                         data->selextend = EXTEND_RIGHT;
1337                 } else {
1338                         but->selsta = but->selend = but->pos= strlen(str);
1339                 }
1340         }
1341         else { /* left */
1342                 if(select) {
1343                         but->selend = but->pos;
1344                         but->selsta = 0;
1345                         data->selextend = EXTEND_LEFT;
1346                 } else {
1347                         but->selsta = but->selend = but->pos= 0;
1348                 }
1349         }
1350 }
1351
1352 static int ui_textedit_delete(uiBut *but, uiHandleButtonData *data, int direction, int all)
1353 {
1354         char *str;
1355         int len, x, changed= 0;
1356
1357         str= data->str;
1358         len= strlen(str);
1359
1360         if(all) {
1361                 if(len) changed=1;
1362                 str[0]= 0;
1363                 but->pos= 0;
1364         }
1365         else if(direction) { /* delete */
1366                 if ((but->selend - but->selsta) > 0) {
1367                         changed= ui_textedit_delete_selection(but, data);
1368                 }
1369                 else if(but->pos>=0 && but->pos<len) {
1370                         for(x=but->pos; x<len; x++)
1371                                 str[x]= str[x+1];
1372                         str[len-1]='\0';
1373                         changed= 1;
1374                 }
1375         }
1376         else { /* backspace */
1377                 if(len!=0) {
1378                         if ((but->selend - but->selsta) > 0) {
1379                                 changed= ui_textedit_delete_selection(but, data);
1380                         }
1381                         else if(but->pos>0) {
1382                                 for(x=but->pos; x<len; x++)
1383                                         str[x-1]= str[x];
1384                                 str[len-1]='\0';
1385
1386                                 but->pos--;
1387                                 changed= 1;
1388                         }
1389                 }
1390         }
1391
1392         return changed;
1393 }
1394
1395 static int ui_textedit_autocomplete(bContext *C, uiBut *but, uiHandleButtonData *data)
1396 {
1397         char *str;
1398         int changed= 1;
1399
1400         str= data->str;
1401
1402         if(data->searchbox)
1403                 ui_searchbox_autocomplete(C, data->searchbox, but, data->str);
1404         else
1405                 but->autocomplete_func(C, str, but->autofunc_arg);
1406
1407         but->pos= strlen(str);
1408         but->selsta= but->selend= but->pos;
1409
1410         return changed;
1411 }
1412
1413 static int ui_textedit_copypaste(uiBut *but, uiHandleButtonData *data, int paste, int copy, int cut)
1414 {
1415         char buf[UI_MAX_DRAW_STR]={0};
1416         char *str, *p, *pbuf;
1417         int len, x, y, i, changed= 0;
1418
1419         str= data->str;
1420         len= strlen(str);
1421
1422         /* paste */
1423         if (paste) {
1424                 /* extract the first line from the clipboard */
1425                 p = pbuf= WM_clipboard_text_get(0);
1426
1427                 if(p && p[0]) {
1428                         i= 0;
1429                         while (*p && *p!='\r' && *p!='\n' && i<UI_MAX_DRAW_STR-1) {
1430                                 buf[i++]=*p;
1431                                 p++;
1432                         }
1433                         buf[i]= 0;
1434
1435                         /* paste over the current selection */
1436                         if ((but->selend - but->selsta) > 0) {
1437                                 ui_textedit_delete_selection(but, data);
1438                                 len= strlen(str);
1439                         }
1440
1441                         for (y=0; y<strlen(buf); y++)
1442                         {
1443                                 /* add contents of buffer */
1444                                 if(len+1 < data->maxlen) {
1445                                         for(x= data->maxlen; x>but->pos; x--)
1446                                                 str[x]= str[x-1];
1447                                         str[but->pos]= buf[y];
1448                                         but->pos++;
1449                                         len++;
1450                                         str[len]= '\0';
1451                                 }
1452                         }
1453
1454                         changed= 1;
1455                 }
1456
1457                 if(pbuf)
1458                         MEM_freeN(pbuf);
1459         }
1460         /* cut & copy */
1461         else if (copy || cut) {
1462                 /* copy the contents to the copypaste buffer */
1463                 for(x= but->selsta; x <= but->selend; x++) {
1464                         if (x==but->selend)
1465                                 buf[x] = '\0';
1466                         else
1467                                 buf[(x - but->selsta)] = str[x];
1468                 }
1469
1470                 WM_clipboard_text_set(buf, 0);
1471
1472                 /* for cut only, delete the selection afterwards */
1473                 if(cut)
1474                         if((but->selend - but->selsta) > 0)
1475                                 changed= ui_textedit_delete_selection(but, data);
1476         }
1477
1478         return changed;
1479 }
1480
1481 static void ui_textedit_begin(bContext *C, uiBut *but, uiHandleButtonData *data)
1482 {
1483         if(data->str) {
1484                 MEM_freeN(data->str);
1485                 data->str= NULL;
1486         }
1487
1488         /* retrieve string */
1489         data->maxlen= ui_get_but_string_max_length(but);
1490         data->str= MEM_callocN(sizeof(char)*data->maxlen + 1, "textedit str");
1491         ui_get_but_string(but, data->str, data->maxlen);
1492
1493         data->origstr= BLI_strdup(data->str);
1494         data->selextend= 0;
1495         data->selstartx= 0;
1496
1497         /* set cursor pos to the end of the text */
1498         but->editstr= data->str;
1499         but->pos= strlen(data->str);
1500         but->selsta= 0;
1501         but->selend= strlen(data->str);
1502
1503         /* optional searchbox */
1504         if(but->type==SEARCH_MENU) {
1505                 data->searchbox= ui_searchbox_create(C, data->region, but);
1506                 ui_searchbox_update(C, data->searchbox, but, 1); /* 1= reset */
1507         }
1508
1509         ui_check_but(but);
1510 }
1511
1512 static void ui_textedit_end(bContext *C, uiBut *but, uiHandleButtonData *data)
1513 {
1514         if(but) {
1515                 if(data->searchbox) {
1516                         if(data->cancel==0)
1517                                 ui_searchbox_apply(but, data->searchbox);
1518
1519                         ui_searchbox_free(C, data->searchbox);
1520                         data->searchbox= NULL;
1521                 }
1522
1523                 but->editstr= NULL;
1524                 but->pos= -1;
1525         }
1526 }
1527
1528 static void ui_textedit_next_but(uiBlock *block, uiBut *actbut, uiHandleButtonData *data)
1529 {
1530         uiBut *but;
1531
1532         /* label and roundbox can overlap real buttons (backdrops...) */
1533         if(ELEM4(actbut->type, LABEL, SEPR, ROUNDBOX, LISTBOX))
1534                 return;
1535
1536         for(but= actbut->next; but; but= but->next) {
1537                 if(ELEM7(but->type, TEX, NUM, NUMABS, NUMSLI, HSVSLI, IDPOIN, SEARCH_MENU)) {
1538                         if(!(but->flag & UI_BUT_DISABLED)) {
1539                                 data->postbut= but;
1540                                 data->posttype= BUTTON_ACTIVATE_TEXT_EDITING;
1541                                 return;
1542                         }
1543                 }
1544         }
1545         for(but= block->buttons.first; but!=actbut; but= but->next) {
1546                 if(ELEM7(but->type, TEX, NUM, NUMABS, NUMSLI, HSVSLI, IDPOIN, SEARCH_MENU)) {
1547                         if(!(but->flag & UI_BUT_DISABLED)) {
1548                                 data->postbut= but;
1549                                 data->posttype= BUTTON_ACTIVATE_TEXT_EDITING;
1550                                 return;
1551                         }
1552                 }
1553         }
1554 }
1555
1556 static void ui_textedit_prev_but(uiBlock *block, uiBut *actbut, uiHandleButtonData *data)
1557 {
1558         uiBut *but;
1559
1560         /* label and roundbox can overlap real buttons (backdrops...) */
1561         if(ELEM4(actbut->type, LABEL, SEPR, ROUNDBOX, LISTBOX))
1562                 return;
1563
1564         for(but= actbut->prev; but; but= but->prev) {
1565                 if(ELEM7(but->type, TEX, NUM, NUMABS, NUMSLI, HSVSLI, IDPOIN, SEARCH_MENU)) {
1566                         if(!(but->flag & UI_BUT_DISABLED)) {
1567                                 data->postbut= but;
1568                                 data->posttype= BUTTON_ACTIVATE_TEXT_EDITING;
1569                                 return;
1570                         }
1571                 }
1572         }
1573         for(but= block->buttons.last; but!=actbut; but= but->prev) {
1574                 if(ELEM7(but->type, TEX, NUM, NUMABS, NUMSLI, HSVSLI, IDPOIN, SEARCH_MENU)) {
1575                         if(!(but->flag & UI_BUT_DISABLED)) {
1576                                 data->postbut= but;
1577                                 data->posttype= BUTTON_ACTIVATE_TEXT_EDITING;
1578                                 return;
1579                         }
1580                 }
1581         }
1582 }
1583
1584
1585 static void ui_do_but_textedit(bContext *C, uiBlock *block, uiBut *but, uiHandleButtonData *data, wmEvent *event)
1586 {
1587         int mx, my, changed= 0, inbox=0, update= 0, retval= WM_UI_HANDLER_CONTINUE;
1588
1589         switch(event->type) {
1590                 case WHEELUPMOUSE:
1591                 case WHEELDOWNMOUSE:
1592                 case MOUSEMOVE:
1593                         if(data->searchbox)
1594                                 ui_searchbox_event(C, data->searchbox, but, event);
1595
1596                         break;
1597                 case RIGHTMOUSE:
1598                 case ESCKEY:
1599                         data->cancel= 1;
1600                         data->escapecancel= 1;
1601                         button_activate_state(C, but, BUTTON_STATE_EXIT);
1602                         retval= WM_UI_HANDLER_BREAK;
1603                         break;
1604                 case LEFTMOUSE: {
1605
1606                         /* exit on LMB only on RELEASE for searchbox, to mimic other popups, and allow multiple menu levels */
1607                         if(data->searchbox)
1608                                 inbox= ui_searchbox_inside(data->searchbox, event->x, event->y);
1609
1610                         if(event->val==KM_PRESS) {
1611                                 mx= event->x;
1612                                 my= event->y;
1613                                 ui_window_to_block(data->region, block, &mx, &my);
1614
1615                                 if ((but->y1 <= my) && (my <= but->y2) && (but->x1 <= mx) && (mx <= but->x2)) {
1616                                         ui_textedit_set_cursor_pos(but, data, mx);
1617                                         but->selsta = but->selend = but->pos;
1618                                         data->selstartx= mx;
1619
1620                                         button_activate_state(C, but, BUTTON_STATE_TEXT_SELECTING);
1621                                         retval= WM_UI_HANDLER_BREAK;
1622                                 }
1623                                 else if(inbox==0) {
1624                                         /* if searchbox, click outside will cancel */
1625                                         if(data->searchbox)
1626                                                 data->cancel= data->escapecancel= 1;
1627                                         button_activate_state(C, but, BUTTON_STATE_EXIT);
1628                                         retval= WM_UI_HANDLER_BREAK;
1629                                 }
1630                         }
1631                         else if(inbox) {
1632                                 button_activate_state(C, but, BUTTON_STATE_EXIT);
1633                                 retval= WM_UI_HANDLER_BREAK;
1634                         }
1635                         break;
1636                 }
1637         }
1638
1639         if(event->val==KM_PRESS) {
1640                 switch (event->type) {
1641                         case VKEY:
1642                         case XKEY:
1643                         case CKEY:
1644                                 if(event->ctrl || event->oskey) {
1645                                         if(event->type == VKEY)
1646                                                 changed= ui_textedit_copypaste(but, data, 1, 0, 0);
1647                                         else if(event->type == CKEY)
1648                                                 changed= ui_textedit_copypaste(but, data, 0, 1, 0);
1649                                         else if(event->type == XKEY)
1650                                                 changed= ui_textedit_copypaste(but, data, 0, 0, 1);
1651
1652                                         retval= WM_UI_HANDLER_BREAK;
1653                                 }
1654                                 break;
1655                         case RIGHTARROWKEY:
1656                                 ui_textedit_move(but, data, 1, event->shift, event->ctrl);
1657                                 retval= WM_UI_HANDLER_BREAK;
1658                                 break;
1659                         case LEFTARROWKEY:
1660                                 ui_textedit_move(but, data, 0, event->shift, event->ctrl);
1661                                 retval= WM_UI_HANDLER_BREAK;
1662                                 break;
1663                         case DOWNARROWKEY:
1664                                 if(data->searchbox) {
1665                                         ui_searchbox_event(C, data->searchbox, but, event);
1666                                         break;
1667                                 }
1668                                 /* pass on purposedly */
1669                         case ENDKEY:
1670                                 ui_textedit_move_end(but, data, 1, event->shift);
1671                                 retval= WM_UI_HANDLER_BREAK;
1672                                 break;
1673                         case UPARROWKEY:
1674                                 if(data->searchbox) {
1675                                         ui_searchbox_event(C, data->searchbox, but, event);
1676                                         break;
1677                                 }
1678                                 /* pass on purposedly */
1679                         case HOMEKEY:
1680                                 ui_textedit_move_end(but, data, 0, event->shift);
1681                                 retval= WM_UI_HANDLER_BREAK;
1682                                 break;
1683                         case PADENTER:
1684                         case RETKEY:
1685                                 button_activate_state(C, but, BUTTON_STATE_EXIT);
1686                                 retval= WM_UI_HANDLER_BREAK;
1687                                 break;
1688                         case DELKEY:
1689                                 changed= ui_textedit_delete(but, data, 1, 0);
1690                                 retval= WM_UI_HANDLER_BREAK;
1691                                 break;
1692
1693                         case BACKSPACEKEY:
1694                                 changed= ui_textedit_delete(but, data, 0, event->shift);
1695                                 retval= WM_UI_HANDLER_BREAK;
1696                                 break;
1697
1698                         case TABKEY:
1699                                 /* there is a key conflict here, we can't tab with autocomplete */
1700                                 if(but->autocomplete_func || data->searchbox) {
1701                                         changed= ui_textedit_autocomplete(C, but, data);
1702                                         update= 1; /* do live update for tab key */
1703                                         retval= WM_UI_HANDLER_BREAK;
1704                                 }
1705                                 /* the hotkey here is not well defined, was G.qual so we check all */
1706                                 else if(event->shift || event->ctrl || event->alt || event->oskey) {
1707                                         ui_textedit_prev_but(block, but, data);
1708                                         button_activate_state(C, but, BUTTON_STATE_EXIT);
1709                                 }
1710                                 else {
1711                                         ui_textedit_next_but(block, but, data);
1712                                         button_activate_state(C, but, BUTTON_STATE_EXIT);
1713                                 }
1714                                 retval= WM_UI_HANDLER_BREAK;
1715                                 break;
1716                 }
1717
1718                 if(event->ascii && (retval == WM_UI_HANDLER_CONTINUE)) {
1719                         changed= ui_textedit_type_ascii(but, data, event->ascii);
1720                         retval= WM_UI_HANDLER_BREAK;
1721                 }
1722         }
1723
1724         if(changed) {
1725                 /* only update when typing for TAB key */
1726                 if(update && data->interactive) ui_apply_button(C, block, but, data, 1);
1727                 else ui_check_but(but);
1728
1729                 if(data->searchbox)
1730                         ui_searchbox_update(C, data->searchbox, but, 1); /* 1 = reset */
1731         }
1732
1733         if(changed || (retval == WM_UI_HANDLER_BREAK))
1734                 ED_region_tag_redraw(data->region);
1735 }
1736
1737 static void ui_do_but_textedit_select(bContext *C, uiBlock *block, uiBut *but, uiHandleButtonData *data, wmEvent *event)
1738 {
1739         int mx, my, retval= WM_UI_HANDLER_CONTINUE;
1740
1741         switch(event->type) {
1742                 case MOUSEMOVE: {
1743                         mx= event->x;
1744                         my= event->y;
1745                         ui_window_to_block(data->region, block, &mx, &my);
1746
1747                         ui_textedit_set_cursor_select(but, data, mx);
1748                         retval= WM_UI_HANDLER_BREAK;
1749                         break;
1750                 }
1751                 case LEFTMOUSE:
1752                         if(event->val == KM_RELEASE)
1753                                 button_activate_state(C, but, BUTTON_STATE_TEXT_EDITING);
1754                         retval= WM_UI_HANDLER_BREAK;
1755                         break;
1756         }
1757
1758         if(retval == WM_UI_HANDLER_BREAK) {
1759                 ui_check_but(but);
1760                 ED_region_tag_redraw(data->region);
1761         }
1762 }
1763
1764 /* ************* number editing for various types ************* */
1765
1766 static void ui_numedit_begin(uiBut *but, uiHandleButtonData *data)
1767 {
1768         float softrange, softmin, softmax;
1769
1770         if(but->type == BUT_CURVE) {
1771                 data->cumap= (CurveMapping*)but->poin;
1772                 but->editcumap= data->coba;
1773         }
1774         else if(but->type == BUT_COLORBAND) {
1775                 data->coba= (ColorBand*)but->poin;
1776                 but->editcoba= data->coba;
1777         }
1778         else if(ELEM3(but->type, BUT_NORMAL, HSVCUBE, HSVCIRCLE)) {
1779                 ui_get_but_vectorf(but, data->origvec);
1780                 VECCOPY(data->vec, data->origvec);
1781                 but->editvec= data->vec;
1782         }
1783         else {
1784                 data->startvalue= ui_get_but_val(but);
1785                 data->origvalue= data->startvalue;
1786                 data->value= data->origvalue;
1787                 but->editval= &data->value;
1788
1789                 softmin= but->softmin;
1790                 softmax= but->softmax;
1791                 softrange= softmax - softmin;
1792
1793                 data->dragfstart= (softrange == 0.0)? 0.0: (data->value - softmin)/softrange;
1794                 data->dragf= data->dragfstart;
1795         }
1796
1797         data->dragchange= 0;
1798         data->draglock= 1;
1799 }
1800
1801 static void ui_numedit_end(uiBut *but, uiHandleButtonData *data)
1802 {
1803         but->editval= NULL;
1804         but->editvec= NULL;
1805         but->editcoba= NULL;
1806         but->editcumap= NULL;
1807
1808         data->dragstartx= 0;
1809         data->draglastx= 0;
1810         data->dragchange= 0;
1811         data->dragcbd= NULL;
1812         data->dragsel= 0;
1813 }
1814
1815 static void ui_numedit_apply(bContext *C, uiBlock *block, uiBut *but, uiHandleButtonData *data)
1816 {
1817         if(data->interactive) ui_apply_button(C, block, but, data, 1);
1818         else ui_check_but(but);
1819
1820         ED_region_tag_redraw(data->region);
1821 }
1822
1823 /* ****************** menu opening for various types **************** */
1824
1825 static void ui_blockopen_begin(bContext *C, uiBut *but, uiHandleButtonData *data)
1826 {
1827         uiBlockCreateFunc func= NULL;
1828         uiBlockHandleCreateFunc handlefunc= NULL;
1829         uiMenuCreateFunc menufunc= NULL;
1830         char *menustr= NULL;
1831         void *arg= NULL;
1832
1833         switch(but->type) {
1834                 case BLOCK:
1835                 case PULLDOWN:
1836                         if(but->menu_create_func) {
1837                                 menufunc= but->menu_create_func;
1838                                 arg= but->poin;
1839                         }
1840                         else {
1841                                 func= but->block_create_func;
1842                                 arg= but->poin?but->poin:but->func_argN;
1843                         }
1844                         break;
1845                 case MENU:
1846                         if(but->menu_create_func) {
1847                                 menufunc= but->menu_create_func;
1848                                 arg= but->poin;
1849                         }
1850                         else {
1851                                 data->origvalue= ui_get_but_val(but);
1852                                 data->value= data->origvalue;
1853                                 but->editval= &data->value;
1854
1855                                 menustr= but->str;
1856                         }
1857                         break;
1858                 case ICONROW:
1859                         menufunc= ui_block_func_ICONROW;
1860                         arg= but;
1861                         break;
1862                 case ICONTEXTROW:
1863                         menufunc= ui_block_func_ICONTEXTROW;
1864                         arg= but;
1865                         break;
1866                 case COL:
1867                         ui_get_but_vectorf(but, data->origvec);
1868                         VECCOPY(data->vec, data->origvec);
1869                         but->editvec= data->vec;
1870
1871                         handlefunc= ui_block_func_COL;
1872                         arg= but;
1873                         break;
1874         }
1875
1876         if(func || handlefunc) {
1877                 data->menu= ui_popup_block_create(C, data->region, but, func, handlefunc, arg);
1878                 if(but->block->handle)
1879                         data->menu->popup= but->block->handle->popup;
1880         }
1881         else if(menufunc || menustr) {
1882                 data->menu= ui_popup_menu_create(C, data->region, but, menufunc, arg, menustr);
1883                 if(but->block->handle)
1884                         data->menu->popup= but->block->handle->popup;
1885         }
1886
1887         /* this makes adjacent blocks auto open from now on */
1888         //if(but->block->auto_open==0) but->block->auto_open= 1;
1889 }
1890
1891 static void ui_blockopen_end(bContext *C, uiBut *but, uiHandleButtonData *data)
1892 {
1893         if(but) {
1894                 but->editval= NULL;
1895                 but->editvec= NULL;
1896
1897                 but->block->auto_open_last= PIL_check_seconds_timer();
1898         }
1899
1900         if(data->menu) {
1901                 ui_popup_block_free(C, data->menu);
1902                 data->menu= NULL;
1903         }
1904 }
1905
1906 /* ***************** events for different button types *************** */
1907
1908 static int ui_do_but_BUT(bContext *C, uiBut *but, uiHandleButtonData *data, wmEvent *event)
1909 {
1910         if(data->state == BUTTON_STATE_HIGHLIGHT) {
1911                 if(event->type == LEFTMOUSE && event->val==KM_PRESS) {
1912                         button_activate_state(C, but, BUTTON_STATE_WAIT_RELEASE);
1913                         return WM_UI_HANDLER_BREAK;
1914                 }
1915                 else if(event->type == LEFTMOUSE && but->block->handle) {
1916                         button_activate_state(C, but, BUTTON_STATE_EXIT);
1917                         return WM_UI_HANDLER_BREAK;
1918                 }
1919                 else if(ELEM(event->type, PADENTER, RETKEY) && event->val==KM_PRESS) {
1920                         button_activate_state(C, but, BUTTON_STATE_WAIT_FLASH);
1921                         return WM_UI_HANDLER_BREAK;
1922                 }
1923         }
1924         else if(data->state == BUTTON_STATE_WAIT_RELEASE) {
1925                 if(event->type == LEFTMOUSE && event->val!=KM_PRESS) {
1926                         if(!(but->flag & UI_SELECT))
1927                                 data->cancel= 1;
1928                         button_activate_state(C, but, BUTTON_STATE_EXIT);
1929                         return WM_UI_HANDLER_BREAK;
1930                 }
1931         }
1932
1933         return WM_UI_HANDLER_CONTINUE;
1934 }
1935
1936 static int ui_do_but_HOTKEYEVT(bContext *C, uiBut *but, uiHandleButtonData *data, wmEvent *event)
1937 {
1938         if(data->state == BUTTON_STATE_HIGHLIGHT) {
1939                 if(ELEM3(event->type, LEFTMOUSE, PADENTER, RETKEY) && event->val==KM_PRESS) {
1940                         but->drawstr[0]= 0;
1941                         but->modifier_key= 0;
1942                         button_activate_state(C, but, BUTTON_STATE_WAIT_KEY_EVENT);
1943                         return WM_UI_HANDLER_BREAK;
1944                 }
1945         }
1946         else if(data->state == BUTTON_STATE_WAIT_KEY_EVENT) {
1947
1948                 if(event->type == MOUSEMOVE)
1949                         return WM_UI_HANDLER_CONTINUE;
1950
1951                 if(event->type == ESCKEY) {
1952                         /* data->cancel doesnt work, this button opens immediate */
1953                         if(but->flag & UI_BUT_IMMEDIATE)
1954                                 ui_set_but_val(but, 0);
1955                         else
1956                                 data->cancel= 1;
1957                         button_activate_state(C, but, BUTTON_STATE_EXIT);
1958                         return WM_UI_HANDLER_BREAK;
1959                 }
1960
1961                 /* always set */
1962                 but->modifier_key = 0;
1963                 if(event->shift)
1964                         but->modifier_key |= KM_SHIFT;
1965                 if(event->alt)
1966                         but->modifier_key |= KM_ALT;
1967                 if(event->ctrl)
1968                         but->modifier_key |= KM_CTRL;
1969                 if(event->oskey)
1970                         but->modifier_key |= KM_OSKEY;
1971
1972                 ui_check_but(but);
1973                 ED_region_tag_redraw(data->region);
1974
1975                 if(event->val==KM_PRESS) {
1976                         if(ISHOTKEY(event->type)) {
1977
1978                                 if(WM_key_event_string(event->type)[0])
1979                                         ui_set_but_val(but, event->type);
1980                                 else
1981                                         data->cancel= 1;
1982
1983                                 button_activate_state(C, but, BUTTON_STATE_EXIT);
1984                                 return WM_UI_HANDLER_BREAK;
1985                         }
1986                 }
1987         }
1988
1989         return WM_UI_HANDLER_CONTINUE;
1990 }
1991
1992
1993 static int ui_do_but_KEYEVT(bContext *C, uiBut *but, uiHandleButtonData *data, wmEvent *event)
1994 {
1995         if(data->state == BUTTON_STATE_HIGHLIGHT) {
1996                 if(ELEM3(event->type, LEFTMOUSE, PADENTER, RETKEY) && event->val==KM_PRESS) {
1997                         short event= (short)ui_get_but_val(but);
1998                         /* hardcoded prevention from editing or assigning ESC */
1999                         if(event!=ESCKEY)
2000                                 button_activate_state(C, but, BUTTON_STATE_WAIT_KEY_EVENT);
2001                         return WM_UI_HANDLER_BREAK;
2002                 }
2003         }
2004         else if(data->state == BUTTON_STATE_WAIT_KEY_EVENT) {
2005                 if(event->type == MOUSEMOVE)
2006                         return WM_UI_HANDLER_CONTINUE;
2007
2008                 if(event->val==KM_PRESS) {
2009                         if(event->type!=ESCKEY && WM_key_event_string(event->type)[0])
2010                                 ui_set_but_val(but, event->type);
2011                         else
2012                                 data->cancel= 1;
2013
2014                         button_activate_state(C, but, BUTTON_STATE_EXIT);
2015                 }
2016         }
2017
2018         return WM_UI_HANDLER_CONTINUE;
2019 }
2020
2021 static int ui_do_but_TEX(bContext *C, uiBlock *block, uiBut *but, uiHandleButtonData *data, wmEvent *event)
2022 {
2023         if(data->state == BUTTON_STATE_HIGHLIGHT) {
2024                 if(ELEM(event->type, LEFTMOUSE, EVT_BUT_OPEN) && event->val==KM_PRESS) {
2025                         if(but->dt == UI_EMBOSSN && !event->ctrl);
2026                         else {
2027                                 button_activate_state(C, but, BUTTON_STATE_TEXT_EDITING);
2028                                 return WM_UI_HANDLER_BREAK;
2029                         }
2030                 }
2031         }
2032         else if(data->state == BUTTON_STATE_TEXT_EDITING) {
2033                 ui_do_but_textedit(C, block, but, data, event);
2034                 return WM_UI_HANDLER_BREAK;
2035         }
2036         else if(data->state == BUTTON_STATE_TEXT_SELECTING) {
2037                 ui_do_but_textedit_select(C, block, but, data, event);
2038                 return WM_UI_HANDLER_BREAK;
2039         }
2040
2041         return WM_UI_HANDLER_CONTINUE;
2042 }
2043
2044 static int ui_do_but_TOG(bContext *C, uiBut *but, uiHandleButtonData *data, wmEvent *event)
2045 {
2046         if(data->state == BUTTON_STATE_HIGHLIGHT) {
2047                 if(ELEM3(event->type, LEFTMOUSE, PADENTER, RETKEY) && event->val==KM_PRESS) {
2048                         data->togdual= event->ctrl;
2049                         data->togonly= !event->shift;
2050                         button_activate_state(C, but, BUTTON_STATE_EXIT);
2051                         return WM_UI_HANDLER_BREAK;
2052                 }
2053         }
2054         return WM_UI_HANDLER_CONTINUE;
2055 }
2056
2057 static int ui_do_but_EXIT(bContext *C, uiBut *but, uiHandleButtonData *data, wmEvent *event)
2058 {
2059
2060         if(data->state == BUTTON_STATE_HIGHLIGHT) {
2061
2062                 /* first handle click on icondrag type button */
2063                 if(event->type==LEFTMOUSE && but->dragpoin) {
2064                         if(ui_but_mouse_inside_icon(but, data->region, event)) {
2065                                 button_activate_state(C, but, BUTTON_STATE_WAIT_DRAG);
2066                                 data->dragstartx= event->x;
2067                                 data->dragstarty= event->y;
2068                                 return WM_UI_HANDLER_BREAK;
2069                         }
2070                 }
2071
2072                 if(ELEM3(event->type, LEFTMOUSE, PADENTER, RETKEY) && event->val==KM_PRESS) {
2073                         button_activate_state(C, but, BUTTON_STATE_EXIT);
2074                         return WM_UI_HANDLER_BREAK;
2075                 }
2076         }
2077         else if(data->state == BUTTON_STATE_WAIT_DRAG) {
2078
2079                 /* this function also ends state */
2080                 if(ui_but_start_drag(C, but, data, event)) {
2081                         return WM_UI_HANDLER_BREAK;
2082                 }
2083
2084                 /* pass on release as press for other keymaps XXX hack alert! */
2085                 if(event->type==LEFTMOUSE && event->val==KM_RELEASE) {
2086                         button_activate_state(C, but, BUTTON_STATE_EXIT);
2087                         event->val= KM_PRESS;
2088                         return WM_UI_HANDLER_CONTINUE;
2089                 }
2090
2091         }
2092
2093         return WM_UI_HANDLER_CONTINUE;
2094 }
2095
2096 /* var names match ui_numedit_but_NUM */
2097 static float ui_numedit_apply_snapf(float tempf, float softmin, float softmax, float softrange, int snap)
2098 {
2099         if(tempf==softmin || tempf==softmax)
2100                 return tempf;
2101
2102         switch(snap) {
2103         case 0:
2104                 break;
2105         case 1:
2106                 if(tempf==softmin || tempf==softmax) { }
2107                 else if(softrange < 2.10) tempf= 0.1*floor(10*tempf);
2108                 else if(softrange < 21.0) tempf= floor(tempf);
2109                 else tempf= 10.0*floor(tempf/10.0);
2110                 break;
2111         case 2:
2112                 if(tempf==softmin || tempf==softmax) { }
2113                 else if(softrange < 2.10) tempf= 0.01*floor(100.0*tempf);
2114                 else if(softrange < 21.0) tempf= 0.1*floor(10.0*tempf);
2115                 else tempf= floor(tempf);
2116                 break;
2117         }
2118
2119         return tempf;
2120 }
2121
2122 static float ui_numedit_apply_snap(int temp, float softmin, float softmax, int snap)
2123 {
2124         if(temp==softmin || temp==softmax)
2125                 return temp;
2126
2127         switch(snap) {
2128         case 0:
2129                 break;
2130         case 1:
2131                 temp= 10*(temp/10);
2132                 break;
2133         case 2:
2134                 temp= 100*(temp/100);
2135                 break;
2136         }
2137
2138         return temp;
2139 }
2140
2141 static int ui_numedit_but_NUM(uiBut *but, uiHandleButtonData *data, float fac, int snap, int mx)
2142 {
2143         float deler, tempf, softmin, softmax, softrange;
2144         int lvalue, temp, changed= 0;
2145
2146         if(mx == data->draglastx)
2147                 return changed;
2148
2149         /* drag-lock - prevent unwanted scroll adjustments */
2150         /* change value (now 3) to adjust threshold in pixels */
2151         if(data->draglock) {
2152                 if(abs(mx-data->dragstartx) <= 3)
2153                         return changed;
2154
2155                 data->draglock= 0;
2156                 data->dragstartx= mx;  /* ignore mouse movement within drag-lock */
2157         }
2158
2159         softmin= but->softmin;
2160         softmax= but->softmax;
2161         softrange= softmax - softmin;
2162
2163
2164         if(ui_is_a_warp_but(but)) {
2165                 /* Mouse location isn't screen clamped to the screen so use a linear mapping
2166                  * 2px == 1-int, or 1px == 1-ClickStep */
2167                 if(ui_is_but_float(but)) {
2168                         fac *= 0.01*but->a1;
2169                         tempf = data->startvalue + ((mx - data->dragstartx) * fac);
2170                         tempf= ui_numedit_apply_snapf(tempf, softmin, softmax, softrange, snap);
2171
2172 #if 1           /* fake moving the click start, nicer for dragging back after passing the limit */
2173                         if(tempf < softmin) {
2174                                 data->dragstartx -= (softmin-tempf) / fac;
2175                                 tempf= softmin;
2176                         } else if (tempf > softmax) {
2177                                 data->dragstartx += (tempf-softmax) / fac;
2178                                 tempf= softmax;
2179                         }
2180 #else
2181                         CLAMP(tempf, softmin, softmax);
2182 #endif
2183
2184                         if(tempf != data->value) {
2185                                 data->dragchange= 1;
2186                                 data->value= tempf;
2187                                 changed= 1;
2188                         }
2189                 }
2190                 else {
2191                         fac = 0.5; /* simple 2px == 1 */
2192
2193                         temp= data->startvalue + ((mx - data->dragstartx) * fac);
2194                         temp= ui_numedit_apply_snap(temp, softmin, softmax, snap);
2195
2196 #if 1           /* fake moving the click start, nicer for dragging back after passing the limit */
2197                         if(temp < softmin) {
2198                                 data->dragstartx -= (softmin-temp) / fac;
2199                                 temp= softmin;
2200                         } else if (temp > softmax) {
2201                                 data->dragstartx += (temp-softmax) / fac;
2202                                 temp= softmax;
2203                         }
2204 #else
2205                         CLAMP(temp, softmin, softmax);
2206 #endif
2207
2208                         if(temp != data->value) {
2209                                 data->dragchange= 1;
2210                                 data->value= temp;
2211                                 changed= 1;
2212                         }
2213                 }
2214
2215                 data->draglastx= mx;
2216         }
2217         else {
2218                 /* Use a non-linear mapping of the mouse drag especially for large floats (normal behavior) */
2219                 deler= 500;
2220                 if(!ui_is_but_float(but)) {
2221                         if((softrange)<100) deler= 200.0;
2222                         if((softrange)<25) deler= 50.0;
2223                 }
2224                 deler /= fac;
2225
2226                 if(ui_is_but_float(but) && softrange > 11) {
2227                         /* non linear change in mouse input- good for high precicsion */
2228                         data->dragf+= (((float)(mx-data->draglastx))/deler) * (fabs(data->dragstartx-mx)*0.002);
2229                 } else if (!ui_is_but_float(but) && softrange > 129) { /* only scale large int buttons */
2230                         /* non linear change in mouse input- good for high precicsionm ints need less fine tuning */
2231                         data->dragf+= (((float)(mx-data->draglastx))/deler) * (fabs(data->dragstartx-mx)*0.004);
2232                 } else {
2233                         /*no scaling */
2234                         data->dragf+= ((float)(mx-data->draglastx))/deler ;
2235                 }
2236
2237                 if(data->dragf>1.0) data->dragf= 1.0;
2238                 if(data->dragf<0.0) data->dragf= 0.0;
2239                 data->draglastx= mx;
2240                 tempf= (softmin + data->dragf*softrange);
2241
2242
2243                 if(!ui_is_but_float(but)) {
2244                         temp= floor(tempf+.5);
2245
2246                         temp= ui_numedit_apply_snap(temp, softmin, softmax, snap);
2247
2248                         CLAMP(temp, softmin, softmax);
2249                         lvalue= (int)data->value;
2250
2251                         if(temp != lvalue) {
2252                                 data->dragchange= 1;
2253                                 data->value= (double)temp;
2254                                 changed= 1;
2255                         }
2256                 }
2257                 else {
2258                         temp= 0;
2259                         tempf= ui_numedit_apply_snapf(tempf, softmin, softmax, softrange, snap);
2260
2261                         CLAMP(tempf, softmin, softmax);
2262
2263                         if(tempf != data->value) {
2264                                 data->dragchange= 1;
2265                                 data->value= tempf;
2266                                 changed= 1;
2267                         }
2268                 }
2269         }
2270
2271
2272         return changed;
2273 }
2274
2275 static int ui_do_but_NUM(bContext *C, uiBlock *block, uiBut *but, uiHandleButtonData *data, wmEvent *event)
2276 {
2277         int mx, my;     /* mouse location scaled to fit the UI */
2278         int screen_mx, screen_my; /* mouse location kept at screen pixel coords */
2279         int click= 0;
2280         int retval= WM_UI_HANDLER_CONTINUE;
2281
2282         mx= screen_mx= event->x;
2283         my= screen_my= event->y;
2284
2285         ui_window_to_block(data->region, block, &mx, &my);
2286
2287         if(data->state == BUTTON_STATE_HIGHLIGHT) {
2288                 /* XXX hardcoded keymap check.... */
2289                 if(event->type == WHEELDOWNMOUSE && event->alt) {
2290                         mx= but->x1;
2291                         click= 1;
2292                 }
2293                 else if(event->type == WHEELUPMOUSE && event->alt) {
2294                         mx= but->x2;
2295                         click= 1;
2296                 }
2297                 else if(event->val==KM_PRESS) {
2298                         if(ELEM3(event->type, LEFTMOUSE, PADENTER, RETKEY) && event->ctrl) {
2299                                 button_activate_state(C, but, BUTTON_STATE_TEXT_EDITING);
2300                                 retval= WM_UI_HANDLER_BREAK;
2301                         }
2302                         else if(event->type == LEFTMOUSE) {
2303                                 data->dragstartx= data->draglastx= ui_is_a_warp_but(but) ? screen_mx:mx;
2304                                 button_activate_state(C, but, BUTTON_STATE_NUM_EDITING);
2305                                 retval= WM_UI_HANDLER_BREAK;
2306                         }
2307                         else if(ELEM(event->type, PADENTER, RETKEY) && event->val==KM_PRESS)
2308                                 click= 1;
2309                 }
2310
2311         }
2312         else if(data->state == BUTTON_STATE_NUM_EDITING) {
2313                 if(event->type == ESCKEY) {
2314                         data->cancel= 1;
2315                         data->escapecancel= 1;
2316                         button_activate_state(C, but, BUTTON_STATE_EXIT);
2317                 }
2318                 else if(event->type == LEFTMOUSE && event->val!=KM_PRESS) {
2319                         if(data->dragchange)
2320                                 button_activate_state(C, but, BUTTON_STATE_EXIT);
2321                         else
2322                                 click= 1;
2323                 }
2324                 else if(event->type == MOUSEMOVE) {
2325                         float fac;
2326                         int snap;
2327
2328                         fac= 1.0f;
2329                         if(event->shift) fac /= 10.0f;
2330                         if(event->alt) fac /= 20.0f;
2331
2332                         snap= (event->ctrl)? (event->shift)? 2: 1: 0;
2333
2334                         if(ui_numedit_but_NUM(but, data, fac, snap, (ui_is_a_warp_but(but) ? screen_mx:mx)))
2335                                 ui_numedit_apply(C, block, but, data);
2336                 }
2337                 retval= WM_UI_HANDLER_BREAK;
2338         }
2339         else if(data->state == BUTTON_STATE_TEXT_EDITING) {
2340                 ui_do_but_textedit(C, block, but, data, event);
2341                 retval= WM_UI_HANDLER_BREAK;
2342         }
2343         else if(data->state == BUTTON_STATE_TEXT_SELECTING) {
2344                 ui_do_but_textedit_select(C, block, but, data, event);
2345                 retval= WM_UI_HANDLER_BREAK;
2346         }
2347
2348         if(click) {
2349                 /* we can click on the side arrows to increment/decrement,
2350                  * or click inside to edit the value directly */
2351                 float tempf, softmin, softmax;
2352                 int temp;
2353
2354                 softmin= but->softmin;
2355                 softmax= but->softmax;
2356
2357                 if(!ui_is_but_float(but)) {
2358                         if(mx < (but->x1 + (but->x2 - but->x1)/3 - 3)) {
2359                                 button_activate_state(C, but, BUTTON_STATE_NUM_EDITING);
2360
2361                                 temp= (int)data->value - 1;
2362                                 if(temp>=softmin && temp<=softmax)
2363                                         data->value= (double)temp;
2364                                 else
2365                                         data->cancel= 1;
2366
2367                                 button_activate_state(C, but, BUTTON_STATE_EXIT);
2368                         }
2369                         else if(mx > (but->x1 + (2*(but->x2 - but->x1)/3) + 3)) {
2370                                 button_activate_state(C, but, BUTTON_STATE_NUM_EDITING);
2371
2372                                 temp= (int)data->value + 1;
2373                                 if(temp>=softmin && temp<=softmax)
2374                                         data->value= (double)temp;
2375                                 else
2376                                         data->cancel= 1;
2377
2378                                 button_activate_state(C, but, BUTTON_STATE_EXIT);
2379                         }
2380                         else
2381                                 button_activate_state(C, but, BUTTON_STATE_TEXT_EDITING);
2382                 }
2383                 else {
2384                         if(mx < (but->x1 + (but->x2 - but->x1)/3 - 3)) {
2385                                 button_activate_state(C, but, BUTTON_STATE_NUM_EDITING);
2386
2387                                 tempf= data->value - 0.01*but->a1;
2388                                 if (tempf < softmin) tempf = softmin;
2389                                 data->value= tempf;
2390
2391                                 button_activate_state(C, but, BUTTON_STATE_EXIT);
2392                         }
2393                         else if(mx > but->x1 + (2*((but->x2 - but->x1)/3) + 3)) {
2394                                 button_activate_state(C, but, BUTTON_STATE_NUM_EDITING);
2395
2396                                 tempf= data->value + 0.01*but->a1;
2397                                 if (tempf > softmax) tempf = softmax;
2398                                 data->value= tempf;
2399
2400                                 button_activate_state(C, but, BUTTON_STATE_EXIT);
2401                         }
2402                         else
2403                                 button_activate_state(C, but, BUTTON_STATE_TEXT_EDITING);
2404                 }
2405
2406                 retval= WM_UI_HANDLER_BREAK;
2407         }
2408
2409         return retval;
2410 }
2411
2412 static int ui_numedit_but_SLI(uiBut *but, uiHandleButtonData *data, int shift, int ctrl, int mx)
2413 {
2414         float deler, f, tempf, softmin, softmax, softrange;
2415         int temp, lvalue, changed= 0;
2416
2417         softmin= but->softmin;
2418         softmax= but->softmax;
2419         softrange= softmax - softmin;
2420
2421         if(but->type==NUMSLI) deler= ((but->x2-but->x1) - 5.0*but->aspect);
2422         else if(but->type==HSVSLI) deler= ((but->x2-but->x1)/2 - 5.0*but->aspect);
2423         else if(but->type==SCROLL) {
2424                 int horizontal= (but->x2 - but->x1 > but->y2 - but->y1);
2425                 float size= (horizontal)? (but->x2-but->x1): -(but->y2-but->y1);
2426                 deler= size*(but->softmax - but->softmin)/(but->softmax - but->softmin + but->a1);
2427         }
2428         else deler= (but->x2-but->x1- 5.0*but->aspect);
2429
2430         f= (float)(mx-data->dragstartx)/deler + data->dragfstart;
2431
2432         if(shift)
2433                 f= (f-data->dragfstart)/10.0 + data->dragfstart;
2434
2435         CLAMP(f, 0.0, 1.0);
2436         tempf= softmin + f*softrange;
2437         temp= floor(tempf+.5);
2438
2439         if(ctrl) {
2440                 if(tempf==softmin || tempf==softmax);
2441                 else if(ui_is_but_float(but)) {
2442
2443                         if(shift) {
2444                                 if(tempf==softmin || tempf==softmax);
2445                                 else if(softmax-softmin < 2.10) tempf= 0.01*floor(100.0*tempf);
2446                                 else if(softmax-softmin < 21.0) tempf= 0.1*floor(10.0*tempf);
2447                                 else tempf= floor(tempf);
2448                         }
2449                         else {
2450                                 if(softmax-softmin < 2.10) tempf= 0.1*floor(10*tempf);
2451                                 else if(softmax-softmin < 21.0) tempf= floor(tempf);
2452                                 else tempf= 10.0*floor(tempf/10.0);
2453                         }
2454                 }
2455                 else {
2456                         temp= 10*(temp/10);
2457                         tempf= temp;
2458                 }
2459         }
2460
2461         if(!ui_is_but_float(but)) {
2462                 lvalue= floor(data->value+0.5);
2463
2464                 CLAMP(temp, softmin, softmax);
2465
2466                 if(temp != lvalue) {
2467                         data->value= temp;
2468                         data->dragchange= 1;
2469                         changed= 1;
2470                 }
2471         }
2472         else {
2473                 CLAMP(tempf, softmin, softmax);
2474
2475                 if(tempf != data->value) {
2476                         data->value= tempf;
2477                         data->dragchange= 1;
2478                         changed= 1;
2479                 }
2480         }
2481
2482         return changed;
2483 }
2484
2485 static int ui_do_but_SLI(bContext *C, uiBlock *block, uiBut *but, uiHandleButtonData *data, wmEvent *event)
2486 {
2487         int mx, my, click= 0;
2488         int retval= WM_UI_HANDLER_CONTINUE;
2489
2490         mx= event->x;
2491         my= event->y;
2492         ui_window_to_block(data->region, block, &mx, &my);
2493
2494         if(data->state == BUTTON_STATE_HIGHLIGHT) {
2495                 /* XXX hardcoded keymap check.... */
2496                 if(event->type == WHEELDOWNMOUSE && event->alt) {
2497                         mx= but->x1;
2498                         click= 2;
2499                 }
2500                 else if(event->type == WHEELUPMOUSE && event->alt) {
2501                         mx= but->x2;
2502                         click= 2;
2503                 }
2504                 else if(event->val==KM_PRESS) {
2505                         if(ELEM3(event->type, LEFTMOUSE, PADENTER, RETKEY) && event->ctrl) {
2506                                 button_activate_state(C, but, BUTTON_STATE_TEXT_EDITING);
2507                                 retval= WM_UI_HANDLER_BREAK;
2508                         }
2509                         /* alt-click on sides to get "arrows" like in NUM buttons, and match wheel usage above */
2510                         else if(event->type == LEFTMOUSE && event->alt) {
2511                                 int halfpos = (but->x1 + but->x2) / 2;
2512                                 click = 2;
2513                                 if (mx < halfpos)
2514                                         mx = but->x1;
2515                                 else
2516                                         mx = but->x2;
2517                         }
2518                         else if(event->type == LEFTMOUSE) {
2519                                 data->dragstartx= mx;
2520                                 data->draglastx= mx;
2521                                 button_activate_state(C, but, BUTTON_STATE_NUM_EDITING);
2522                                 retval= WM_UI_HANDLER_BREAK;
2523                         }
2524                         else if(ELEM(event->type, PADENTER, RETKEY) && event->val==KM_PRESS)
2525                                 click= 1;
2526                 }
2527         }
2528         else if(data->state == BUTTON_STATE_NUM_EDITING) {
2529                 if(event->type == ESCKEY) {
2530                         data->cancel= 1;
2531                         data->escapecancel= 1;
2532                         button_activate_state(C, but, BUTTON_STATE_EXIT);
2533                 }
2534                 else if(event->type == LEFTMOUSE && event->val!=KM_PRESS) {
2535                         if(data->dragchange)
2536                                 button_activate_state(C, but, BUTTON_STATE_EXIT);
2537                         else
2538                                 click= 1;
2539                 }
2540                 else if(event->type == MOUSEMOVE) {
2541                         if(ui_numedit_but_SLI(but, data, event->shift, event->ctrl, mx))
2542                                 ui_numedit_apply(C, block, but, data);
2543                 }
2544                 retval= WM_UI_HANDLER_BREAK;
2545         }
2546         else if(data->state == BUTTON_STATE_TEXT_EDITING) {
2547                 ui_do_but_textedit(C, block, but, data, event);
2548                 retval= WM_UI_HANDLER_BREAK;
2549         }
2550         else if(data->state == BUTTON_STATE_TEXT_SELECTING) {
2551                 ui_do_but_textedit_select(C, block, but, data, event);
2552                 retval= WM_UI_HANDLER_BREAK;
2553         }
2554
2555         if(click) {
2556                 if (click==2) {
2557                         /* nudge slider to the left or right */
2558                         float f, tempf, softmin, softmax, softrange;
2559                         int temp;
2560
2561                         button_activate_state(C, but, BUTTON_STATE_NUM_EDITING);
2562
2563                         softmin= but->softmin;
2564                         softmax= but->softmax;
2565                         softrange= softmax - softmin;
2566
2567                         tempf= data->value;
2568                         temp= (int)data->value;
2569
2570                         /* XXX useles "if", same result for f, uh??? */
2571                         if(but->type==SLI) f= (float)(mx-but->x1)/(but->x2-but->x1);
2572                         else f= (float)(mx- but->x1)/(but->x2-but->x1);
2573
2574                         f= softmin + f*softrange;
2575
2576                         if(!ui_is_but_float(but)) {
2577                                 if(f<temp) temp--;
2578                                 else temp++;
2579
2580                                 if(temp>=softmin && temp<=softmax)
2581                                         data->value= temp;
2582                                 else
2583                                         data->cancel= 1;
2584                         }
2585                         else {
2586                                 if(f<tempf) tempf-=.01;
2587                                 else tempf+=.01;
2588
2589                                 if(tempf>=softmin && tempf<=softmax)
2590                                         data->value= tempf;
2591                                 else
2592                                         data->cancel= 1;
2593                         }
2594
2595                         button_activate_state(C, but, BUTTON_STATE_EXIT);
2596                         retval= WM_UI_HANDLER_BREAK;
2597                 }
2598                 else {
2599                         /* edit the value directly */
2600                         button_activate_state(C, but, BUTTON_STATE_TEXT_EDITING);
2601                         retval= WM_UI_HANDLER_BREAK;
2602                 }
2603         }
2604
2605         return retval;
2606 }
2607
2608 static int ui_do_but_SCROLL(bContext *C, uiBlock *block, uiBut *but, uiHandleButtonData *data, wmEvent *event)
2609 {
2610         int mx, my, click= 0;
2611         int retval= WM_UI_HANDLER_CONTINUE;
2612         int horizontal= (but->x2 - but->x1 > but->y2 - but->y1);
2613
2614         mx= event->x;
2615         my= event->y;
2616         ui_window_to_block(data->region, block, &mx, &my);
2617
2618         if(data->state == BUTTON_STATE_HIGHLIGHT) {
2619                 if(event->val==KM_PRESS) {
2620                         if(event->type == LEFTMOUSE) {
2621                                 if(horizontal) {
2622                                         data->dragstartx= mx;
2623                                         data->draglastx= mx;
2624                                 }
2625                                 else {
2626                                         data->dragstartx= my;
2627                                         data->draglastx= my;
2628                                 }
2629                                 button_activate_state(C, but, BUTTON_STATE_NUM_EDITING);
2630                                 retval= WM_UI_HANDLER_BREAK;
2631                         }
2632                         else if(ELEM(event->type, PADENTER, RETKEY) && event->val==KM_PRESS)
2633                                 click= 1;
2634                 }
2635         }
2636         else if(data->state == BUTTON_STATE_NUM_EDITING) {
2637                 if(event->type == ESCKEY) {
2638                         data->cancel= 1;
2639                         data->escapecancel= 1;
2640                         button_activate_state(C, but, BUTTON_STATE_EXIT);
2641                 }
2642                 else if(event->type == LEFTMOUSE && event->val!=KM_PRESS) {
2643                         button_activate_state(C, but, BUTTON_STATE_EXIT);
2644                 }
2645                 else if(event->type == MOUSEMOVE) {
2646                         if(ui_numedit_but_SLI(but, data, 0, 0, (horizontal)? mx: my))
2647                                 ui_numedit_apply(C, block, but, data);
2648                 }
2649
2650                 retval= WM_UI_HANDLER_BREAK;
2651         }
2652
2653         return retval;
2654 }
2655
2656
2657 static int ui_do_but_BLOCK(bContext *C, uiBut *but, uiHandleButtonData *data, wmEvent *event)
2658 {
2659
2660         if(data->state == BUTTON_STATE_HIGHLIGHT) {
2661
2662                 /* first handle click on icondrag type button */
2663                 if(event->type==LEFTMOUSE && but->dragpoin && event->val==KM_PRESS) {
2664                         if(ui_but_mouse_inside_icon(but, data->region, event)) {
2665                                 button_activate_state(C, but, BUTTON_STATE_WAIT_DRAG);
2666                                 data->dragstartx= event->x;
2667                                 data->dragstarty= event->y;
2668                                 return WM_UI_HANDLER_BREAK;
2669                         }
2670                 }
2671
2672                 /* regular open menu */
2673                 if(ELEM3(event->type, LEFTMOUSE, PADENTER, RETKEY) && event->val==KM_PRESS) {
2674                         button_activate_state(C, but, BUTTON_STATE_MENU_OPEN);
2675                         return WM_UI_HANDLER_BREAK;
2676                 }
2677                 else if(ELEM3(but->type, MENU, ICONROW, ICONTEXTROW)) {
2678
2679                         if(event->type == WHEELDOWNMOUSE && event->alt) {
2680                                 data->value= ui_step_name_menu(but, -1);
2681                                 button_activate_state(C, but, BUTTON_STATE_EXIT);
2682                                 ui_apply_button(C, but->block, but, data, 1);
2683                                 return WM_UI_HANDLER_BREAK;
2684                         }
2685                         else if(event->type == WHEELUPMOUSE && event->alt) {
2686                                 data->value= ui_step_name_menu(but, 1);
2687                                 button_activate_state(C, but, BUTTON_STATE_EXIT);
2688                                 ui_apply_button(C, but->block, but, data, 1);
2689                                 return WM_UI_HANDLER_BREAK;
2690                         }
2691                 }
2692                 else if(but->type==COL) {
2693                         if( ELEM(event->type, WHEELDOWNMOUSE, WHEELUPMOUSE) && event->alt) {
2694                                 float col[3];
2695
2696                                 ui_get_but_vectorf(but, col);
2697                                 rgb_to_hsv(col[0], col[1], col[2], but->hsv, but->hsv+1, but->hsv+2);
2698
2699                                 if(event->type==WHEELDOWNMOUSE)
2700                                         but->hsv[2]= CLAMPIS(but->hsv[2]-0.05f, 0.0f, 1.0f);
2701                                 else
2702                                         but->hsv[2]= CLAMPIS(but->hsv[2]+0.05f, 0.0f, 1.0f);
2703
2704                                 hsv_to_rgb(but->hsv[0], but->hsv[1], but->hsv[2], data->vec, data->vec+1, data->vec+2);
2705                                 ui_set_but_vectorf(but, data->vec);
2706
2707                                 button_activate_state(C, but, BUTTON_STATE_EXIT);
2708                                 ui_apply_button(C, but->block, but, data, 1);
2709                                 return WM_UI_HANDLER_BREAK;
2710                         }
2711                 }
2712         }
2713         else if(data->state == BUTTON_STATE_WAIT_DRAG) {
2714
2715                 /* this function also ends state */
2716                 if(ui_but_start_drag(C, but, data, event)) {
2717                         return WM_UI_HANDLER_BREAK;
2718                 }
2719
2720                 /* outside icon quit, not needed if drag activated */
2721                 if(0==ui_but_mouse_inside_icon(but, data->region, event)) {
2722                         button_activate_state(C, but, BUTTON_STATE_EXIT);
2723                         data->cancel= 1;
2724                         return WM_UI_HANDLER_BREAK;
2725                 }
2726
2727                 if(event->type==LEFTMOUSE && event->val==KM_RELEASE) {
2728                         button_activate_state(C, but, BUTTON_STATE_MENU_OPEN);
2729                         return WM_UI_HANDLER_BREAK;
2730                 }
2731
2732         }
2733
2734         return WM_UI_HANDLER_CONTINUE;
2735 }
2736
2737 static int ui_numedit_but_NORMAL(uiBut *but, uiHandleButtonData *data, int mx, int my)
2738 {
2739         float dx, dy, rad, radsq, mrad, *fp;
2740         int mdx, mdy, changed= 1;
2741
2742         /* button is presumed square */
2743         /* if mouse moves outside of sphere, it does negative normal */
2744
2745         fp= data->origvec;
2746         rad= (but->x2 - but->x1);
2747         radsq= rad*rad;
2748
2749         if(fp[2]>0.0f) {
2750                 mdx= (rad*fp[0]);
2751                 mdy= (rad*fp[1]);
2752         }
2753         else if(fp[2]> -1.0f) {
2754                 mrad= rad/sqrt(fp[0]*fp[0] + fp[1]*fp[1]);
2755
2756                 mdx= 2.0f*mrad*fp[0] - (rad*fp[0]);
2757                 mdy= 2.0f*mrad*fp[1] - (rad*fp[1]);
2758         }
2759         else mdx= mdy= 0;
2760
2761         dx= (float)(mx+mdx-data->dragstartx);
2762         dy= (float)(my+mdy-data->dragstarty);
2763
2764         fp= data->vec;
2765         mrad= dx*dx+dy*dy;
2766         if(mrad < radsq) {      /* inner circle */
2767                 fp[0]= dx;
2768                 fp[1]= dy;
2769                 fp[2]= sqrt( radsq-dx*dx-dy*dy );
2770         }
2771         else {  /* outer circle */
2772
2773                 mrad= rad/sqrt(mrad);   // veclen
2774
2775                 dx*= (2.0f*mrad - 1.0f);
2776                 dy*= (2.0f*mrad - 1.0f);
2777
2778                 mrad= dx*dx+dy*dy;
2779                 if(mrad < radsq) {
2780                         fp[0]= dx;
2781                         fp[1]= dy;
2782                         fp[2]= -sqrt( radsq-dx*dx-dy*dy );
2783                 }
2784         }
2785         normalize_v3(fp);
2786
2787         data->draglastx= mx;
2788         data->draglasty= my;
2789
2790         return changed;
2791 }
2792
2793 static int ui_do_but_NORMAL(bContext *C, uiBlock *block, uiBut *but, uiHandleButtonData *data, wmEvent *event)
2794 {
2795         int mx, my;
2796
2797         mx= event->x;
2798         my= event->y;
2799         ui_window_to_block(data->region, block, &mx, &my);
2800
2801         if(data->state == BUTTON_STATE_HIGHLIGHT) {
2802                 if(event->type==LEFTMOUSE && event->val==KM_PRESS) {
2803                         data->dragstartx= mx;
2804                         data->dragstarty= my;
2805                         data->draglastx= mx;
2806                         data->draglasty= my;
2807                         button_activate_state(C, but, BUTTON_STATE_NUM_EDITING);
2808
2809                         /* also do drag the first time */
2810                         if(ui_numedit_but_NORMAL(but, data, mx, my))
2811                                 ui_numedit_apply(C, block, but, data);
2812
2813                         return WM_UI_HANDLER_BREAK;
2814                 }
2815         }
2816         else if(data->state == BUTTON_STATE_NUM_EDITING) {
2817                 if(event->type == MOUSEMOVE) {
2818                         if(mx!=data->draglastx || my!=data->draglasty) {
2819                                 if(ui_numedit_but_NORMAL(but, data, mx, my))
2820                                         ui_numedit_apply(C, block, but, data);
2821                         }
2822                 }
2823                 else if(event->type==LEFTMOUSE && event->val!=KM_PRESS)
2824                         button_activate_state(C, but, BUTTON_STATE_EXIT);
2825
2826                 return WM_UI_HANDLER_BREAK;
2827         }
2828
2829         return WM_UI_HANDLER_CONTINUE;
2830 }
2831
2832 static int ui_numedit_but_HSVCUBE(uiBut *but, uiHandleButtonData *data, int mx, int my)
2833 {
2834         float rgb[3], hsv[3];
2835         float x, y;
2836         int changed= 1;
2837         int color_profile = but->block->color_profile;
2838
2839         if (but->rnaprop) {
2840                 if (RNA_property_subtype(but->rnaprop) == PROP_COLOR_GAMMA)
2841                         color_profile = BLI_PR_NONE;
2842         }
2843
2844         ui_get_but_vectorf(but, rgb);
2845         rgb_to_hsv(rgb[0], rgb[1], rgb[2], hsv, hsv+1, hsv+2);
2846
2847         /* relative position within box */
2848         x= ((float)mx-but->x1)/(but->x2-but->x1);
2849         y= ((float)my-but->y1)/(but->y2-but->y1);
2850         CLAMP(x, 0.0, 1.0);
2851         CLAMP(y, 0.0, 1.0);
2852
2853         if(but->a1==0) {
2854                 hsv[2]= x;
2855                 hsv[1]= y;
2856         }
2857         else if(but->a1==1) {
2858                 hsv[0]= x;
2859                 hsv[2]= y;
2860         }
2861         else if(but->a1==2) {
2862                 hsv[0]= x;
2863                 hsv[1]= y;
2864         }
2865         else if(but->a1==3) {
2866                 hsv[0]= x;
2867         }
2868         else if(but->a1==4) {
2869                 hsv[1]= x;
2870         }
2871         else if(but->a1==5) {
2872                 hsv[2]= x;
2873         }
2874         else if (but->a1==9){
2875                 /* vertical 'value' strip */
2876                 hsv[2]= y;
2877                 if (color_profile)
2878                         hsv[2] = srgb_to_linearrgb(hsv[2]);
2879         }
2880
2881         hsv_to_rgb(hsv[0], hsv[1], hsv[2], rgb, rgb+1, rgb+2);
2882         ui_set_but_vectorf(but, rgb);
2883
2884         data->draglastx= mx;
2885         data->draglasty= my;
2886
2887         return changed;
2888 }
2889
2890 static int ui_do_but_HSVCUBE(bContext *C, uiBlock *block, uiBut *but, uiHandleButtonData *data, wmEvent *event)
2891 {
2892         int mx, my;
2893
2894         mx= event->x;
2895         my= event->y;
2896         ui_window_to_block(data->region, block, &mx, &my);
2897
2898         if(data->state == BUTTON_STATE_HIGHLIGHT) {
2899                 if(event->type==LEFTMOUSE && event->val==KM_PRESS) {
2900                         data->dragstartx= mx;
2901                         data->dragstarty= my;
2902                         data->draglastx= mx;
2903                         data->draglasty= my;
2904                         button_activate_state(C, but, BUTTON_STATE_NUM_EDITING);
2905
2906                         /* also do drag the first time */
2907                         if(ui_numedit_but_HSVCUBE(but, data, mx, my))
2908                                 ui_numedit_apply(C, block, but, data);
2909
2910                         return WM_UI_HANDLER_BREAK;
2911                 }
2912                 else if (event->type == ZEROKEY && event->val == KM_PRESS) {
2913                         if (but->a1==9){
2914                                 float rgb[3], hsv[3], def_hsv[3];
2915                                 float *def;
2916                                 int len;
2917
2918                                 /* reset only value */
2919
2920                                 len= RNA_property_array_length(&but->rnapoin, but->rnaprop);
2921                                 if (len >= 3) {
2922                                         def=&n