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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, 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 /** \file blender/editors/interface/interface_handlers.c
  27  *  \ingroup edinterface
  28  */
  29
  30
  31 #include <float.h>
  32 #include <limits.h>
  33 #include <math.h>
  34 #include <stdlib.h>
  35 #include <string.h>
  36 #include <ctype.h>
  37 #include <assert.h>
  38
  39 #include "MEM_guardedalloc.h"
  40
  41 #include "DNA_sensor_types.h"
  42 #include "DNA_controller_types.h"
  43 #include "DNA_actuator_types.h"
  44
  45 #include "DNA_object_types.h"
  46 #include "DNA_scene_types.h"
  47
  48 #include "BLI_math.h"
  49 #include "BLI_blenlib.h"
  50 #include "BLI_utildefines.h"
  51
  52 #include "PIL_time.h"
  53
  54 #include "BKE_colortools.h"
  55 #include "BKE_context.h"
  56 #include "BKE_idprop.h"
  57 #include "BKE_report.h"
  58 #include "BKE_texture.h"
  59 #include "BKE_tracking.h"
  60 #include "BKE_unit.h"
  61
  62 #include "ED_screen.h"
  63 #include "ED_util.h"
  64 #include "ED_keyframing.h"
  65
  66 #include "UI_interface.h"
  67
  68 #include "BLF_api.h"
  69
  70 #include "interface_intern.h"
  71
  72 #include "RNA_access.h"
  73
  74 #include "WM_api.h"
  75 #include "WM_types.h"
  76
  77 /* proto */
  78 static void ui_add_smart_controller(bContext *C, uiBut *from, uiBut *to);
  79 static void ui_add_link(bContext *C, uiBut *from, uiBut *to);
  80
  81 /***************** structs and defines ****************/
  82
  83 #define BUTTON_TOOLTIP_DELAY            0.500
  84 #define BUTTON_FLASH_DELAY                      0.020
  85 #define MENU_SCROLL_INTERVAL            0.1
  86 #define BUTTON_AUTO_OPEN_THRESH         0.3
  87 #define BUTTON_MOUSE_TOWARDS_THRESH     1.0
  88
  89 typedef enum uiButtonActivateType {
  90         BUTTON_ACTIVATE_OVER,
  91         BUTTON_ACTIVATE,
  92         BUTTON_ACTIVATE_APPLY,
  93         BUTTON_ACTIVATE_TEXT_EDITING,
  94         BUTTON_ACTIVATE_OPEN
  95 } uiButtonActivateType;
  96
  97 typedef enum uiHandleButtonState {
  98         BUTTON_STATE_INIT,
  99         BUTTON_STATE_HIGHLIGHT,
 100         BUTTON_STATE_WAIT_FLASH,
 101         BUTTON_STATE_WAIT_RELEASE,
 102         BUTTON_STATE_WAIT_KEY_EVENT,
 103         BUTTON_STATE_NUM_EDITING,
 104         BUTTON_STATE_TEXT_EDITING,
 105         BUTTON_STATE_TEXT_SELECTING,
 106         BUTTON_STATE_MENU_OPEN,
 107         BUTTON_STATE_WAIT_DRAG,
 108         BUTTON_STATE_EXIT
 109 } uiHandleButtonState;
 110
 111 typedef struct uiHandleButtonData {
 112         wmWindowManager *wm;
 113         wmWindow *window;
 114         ARegion *region;
 115
 116         int interactive;
 117
 118         /* overall state */
 119         uiHandleButtonState state;
 120         int cancel, escapecancel, retval;
 121         int applied, appliedinteractive;
 122         wmTimer *flashtimer;
 123
 124         /* edited value */
 125         char *str, *origstr;
 126         double value, origvalue, startvalue;
 127         float vec[3], origvec[3];
 128         int togdual, togonly;
 129         ColorBand *coba;
 130
 131         /* tooltip */
 132         ARegion *tooltip;
 133         wmTimer *tooltiptimer;
 134
 135         /* auto open */
 136         int used_mouse;
 137         wmTimer *autoopentimer;
 138
 139         /* text selection/editing */
 140         int maxlen, selextend, selstartx;
 141
 142         /* number editing / dragging */
 143         int draglastx, draglasty;
 144         int dragstartx, dragstarty;
 145         int dragchange, draglock, dragsel;
 146         float dragf, dragfstart;
 147         CBData *dragcbd;
 148
 149         /* menu open (watch uiFreeActiveButtons) */
 150         uiPopupBlockHandle *menu;
 151         int menuretval;
 152
 153         /* search box (watch uiFreeActiveButtons) */
 154         ARegion *searchbox;
 155
 156         /* post activate */
 157         uiButtonActivateType posttype;
 158         uiBut *postbut;
 159 } uiHandleButtonData;
 160
 161 typedef struct uiAfterFunc {
 162         struct uiAfterFunc *next, *prev;
 163
 164         uiButHandleFunc func;
 165         void *func_arg1;
 166         void *func_arg2;
 167         void *func_arg3;
 168
 169         uiButHandleNFunc funcN;
 170         void *func_argN;
 171
 172         uiButHandleRenameFunc rename_func;
 173         void *rename_arg1;
 174         void *rename_orig;
 175
 176         uiBlockHandleFunc handle_func;
 177         void *handle_func_arg;
 178         int retval;
 179
 180         uiMenuHandleFunc butm_func;
 181         void *butm_func_arg;
 182         int a2;
 183
 184         wmOperatorType *optype;
 185         int opcontext;
 186         PointerRNA *opptr;
 187
 188         PointerRNA rnapoin;
 189         PropertyRNA *rnaprop;
 190
 191         bContextStore *context;
 192
 193         char undostr[512];
 194
 195         int autokey;
 196 } uiAfterFunc;
 197
 198 static int ui_but_contains_pt(uiBut *but, int mx, int my);
 199 static int ui_mouse_inside_button(ARegion *ar, uiBut *but, int x, int y);
 200 static void button_activate_state(bContext *C, uiBut *but, uiHandleButtonState state);
 201 static int ui_handler_region_menu(bContext *C, wmEvent *event, void *userdata);
 202 static void ui_handle_button_activate(bContext *C, ARegion *ar, uiBut *but, uiButtonActivateType type);
 203 static void button_timers_tooltip_remove(bContext *C, uiBut *but);
 204
 205 /* ******************** menu navigation helpers ************** */
 206
 207 static int ui_but_editable(uiBut *but)
 208 {
 209         return ELEM5(but->type, LABEL, SEPR, ROUNDBOX, LISTBOX, PROGRESSBAR);
 210 }
 211
 212 static uiBut *ui_but_prev(uiBut *but)
 213 {
 214         while(but->prev) {
 215                 but= but->prev;
 216                 if(!ui_but_editable(but)) return but;
 217         }
 218         return NULL;
 219 }
 220
 221 static uiBut *ui_but_next(uiBut *but)
 222 {
 223         while(but->next) {
 224                 but= but->next;
 225                 if(!ui_but_editable(but)) return but;
 226         }
 227         return NULL;
 228 }
 229
 230 static uiBut *ui_but_first(uiBlock *block)
 231 {
 232         uiBut *but;
 233
 234         but= block->buttons.first;
 235         while(but) {
 236                 if(!ui_but_editable(but)) return but;
 237                 but= but->next;
 238         }
 239         return NULL;
 240 }
 241
 242 static uiBut *ui_but_last(uiBlock *block)
 243 {
 244         uiBut *but;
 245
 246         but= block->buttons.last;
 247         while(but) {
 248                 if(!ui_but_editable(but)) return but;
 249                 but= but->prev;
 250         }
 251         return NULL;
 252 }
 253
 254 static int ui_is_a_warp_but(uiBut *but)
 255 {
 256         if(U.uiflag & USER_CONTINUOUS_MOUSE)
 257                 if(ELEM4(but->type, NUM, NUMABS, HSVCIRCLE, TRACKPREVIEW))
 258                         return TRUE;
 259
 260         return FALSE;
 261 }
 262
 263 /* file selectors are exempt from utf-8 checks */
 264 static int ui_is_utf8_but(uiBut *but)
 265 {
 266         if (but->rnaprop) {
 267                 const int subtype= RNA_property_subtype(but->rnaprop);
 268                 return !(ELEM3(subtype, PROP_FILEPATH, PROP_DIRPATH, PROP_FILENAME));
 269         }
 270         else {
 271                 return !(but->flag & UI_BUT_NO_UTF8);
 272         }
 273 }
 274
 275 /* ********************** button apply/revert ************************/
 276
 277 static ListBase UIAfterFuncs = {NULL, NULL};
 278
 279 static void ui_apply_but_func(bContext *C, uiBut *but)
 280 {
 281         uiAfterFunc *after;
 282         uiBlock *block= but->block;
 283
 284         /* these functions are postponed and only executed after all other
 285          * handling is done, i.e. menus are closed, in order to avoid conflicts
 286          * with these functions removing the buttons we are working with */
 287
 288         if(but->func || but->funcN || block->handle_func || but->rename_func || (but->type == BUTM && block->butm_func) || but->optype || but->rnaprop) {
 289                 after= MEM_callocN(sizeof(uiAfterFunc), "uiAfterFunc");
 290
 291                 if(but->func && ELEM(but, but->func_arg1, but->func_arg2)) {
 292                         /* exception, this will crash due to removed button otherwise */
 293                         but->func(C, but->func_arg1, but->func_arg2);
 294                 }
 295                 else
 296                         after->func= but->func;
 297
 298                 after->func_arg1= but->func_arg1;
 299                 after->func_arg2= but->func_arg2;
 300                 after->func_arg3= but->func_arg3;
 301
 302                 after->funcN= but->funcN;
 303                 after->func_argN= MEM_dupallocN(but->func_argN);
 304
 305                 after->rename_func= but->rename_func;
 306                 after->rename_arg1= but->rename_arg1;
 307                 after->rename_orig= but->rename_orig; /* needs free! */
 308
 309                 after->handle_func= block->handle_func;
 310                 after->handle_func_arg= block->handle_func_arg;
 311                 after->retval= but->retval;
 312
 313                 if(but->type == BUTM) {
 314                         after->butm_func= block->butm_func;
 315                         after->butm_func_arg= block->butm_func_arg;
 316                         after->a2= but->a2;
 317                 }
 318
 319                 after->optype= but->optype;
 320                 after->opcontext= but->opcontext;
 321                 after->opptr= but->opptr;
 322
 323                 after->rnapoin= but->rnapoin;
 324                 after->rnaprop= but->rnaprop;
 325
 326                 if(but->context)
 327                         after->context= CTX_store_copy(but->context);
 328
 329                 but->optype= NULL;
 330                 but->opcontext= 0;
 331                 but->opptr= NULL;
 332
 333                 BLI_addtail(&UIAfterFuncs, after);
 334         }
 335 }
 336
 337 static void ui_apply_autokey_undo(bContext *C, uiBut *but)
 338 {
 339         Scene *scene= CTX_data_scene(C);
 340         uiAfterFunc *after;
 341
 342         if(but->flag & UI_BUT_UNDO) {
 343                 const char *str= NULL;
 344
 345                 /* define which string to use for undo */
 346                 if ELEM(but->type, LINK, INLINK) str= "Add button link";
 347                 else if ELEM(but->type, MENU, ICONTEXTROW) str= but->drawstr;
 348                 else if(but->drawstr[0]) str= but->drawstr;
 349                 else str= but->tip;
 350
 351                 /* fallback, else we dont get an undo! */
 352                 if(str == NULL || str[0] == '\0') {
 353                         str= "Unknown Action";
 354                 }
 355
 356                 /* delayed, after all other funcs run, popups are closed, etc */
 357                 after= MEM_callocN(sizeof(uiAfterFunc), "uiAfterFunc");
 358                 BLI_strncpy(after->undostr, str, sizeof(after->undostr));
 359                 BLI_addtail(&UIAfterFuncs, after);
 360         }
 361
 362         /* try autokey */
 363         ui_but_anim_autokey(C, but, scene, scene->r.cfra);
 364 }
 365
 366 static void ui_apply_but_funcs_after(bContext *C)
 367 {
 368         uiAfterFunc *afterf, after;
 369         PointerRNA opptr;
 370         ListBase funcs;
 371
 372         /* copy to avoid recursive calls */
 373         funcs= UIAfterFuncs;
 374         UIAfterFuncs.first= UIAfterFuncs.last= NULL;
 375
 376         for(afterf=funcs.first; afterf; afterf=after.next) {
 377                 after= *afterf; /* copy to avoid memleak on exit() */
 378                 BLI_freelinkN(&funcs, afterf);
 379
 380                 if(after.context)
 381                         CTX_store_set(C, after.context);
 382
 383                 if(after.opptr) {
 384                         /* free in advance to avoid leak on exit */
 385                         opptr= *after.opptr,
 386                         MEM_freeN(after.opptr);
 387                 }
 388
 389                 if(after.optype)
 390                         WM_operator_name_call(C, after.optype->idname, after.opcontext, (after.opptr)? &opptr: NULL);
 391
 392                 if(after.opptr)
 393                         WM_operator_properties_free(&opptr);
 394
 395                 if(after.rnapoin.data)
 396                         RNA_property_update(C, &after.rnapoin, after.rnaprop);
 397
 398                 if(after.context) {
 399                         CTX_store_set(C, NULL);
 400                         CTX_store_free(after.context);
 401                 }
 402
 403                 if(after.func)
 404                         after.func(C, after.func_arg1, after.func_arg2);
 405                 if(after.funcN)
 406                         after.funcN(C, after.func_argN, after.func_arg2);
 407                 if(after.func_argN)
 408                         MEM_freeN(after.func_argN);
 409
 410                 if(after.handle_func)
 411                         after.handle_func(C, after.handle_func_arg, after.retval);
 412                 if(after.butm_func)
 413                         after.butm_func(C, after.butm_func_arg, after.a2);
 414
 415                 if(after.rename_func)
 416                         after.rename_func(C, after.rename_arg1, after.rename_orig);
 417                 if(after.rename_orig)
 418                         MEM_freeN(after.rename_orig);
 419
 420                 if(after.undostr[0])
 421                         ED_undo_push(C, after.undostr);
 422         }
 423 }
 424
 425 static void ui_apply_but_BUT(bContext *C, uiBut *but, uiHandleButtonData *data)
 426 {
 427         ui_apply_but_func(C, but);
 428
 429         data->retval= but->retval;
 430         data->applied= 1;
 431 }
 432
 433 static void ui_apply_but_BUTM(bContext *C, uiBut *but, uiHandleButtonData *data)
 434 {
 435         ui_set_but_val(but, but->hardmin);
 436         ui_apply_but_func(C, but);
 437
 438         data->retval= but->retval;
 439         data->applied= 1;
 440 }
 441
 442 static void ui_apply_but_BLOCK(bContext *C, uiBut *but, uiHandleButtonData *data)
 443 {
 444         if(ELEM3(but->type, MENU, ICONROW, ICONTEXTROW))
 445                 ui_set_but_val(but, data->value);
 446
 447         ui_check_but(but);
 448         ui_apply_but_func(C, but);
 449         data->retval= but->retval;
 450         data->applied= 1;
 451 }
 452
 453 static void ui_apply_but_TOG(bContext *C, uiBut *but, uiHandleButtonData *data)
 454 {
 455         double value;
 456         int w, lvalue, push;
 457
 458         /* local hack... */
 459         if(but->type==BUT_TOGDUAL && data->togdual) {
 460                 if(but->pointype==SHO)
 461                         but->poin += 2;
 462                 else if(but->pointype==INT)
 463                         but->poin += 4;
 464         }
 465
 466         value= ui_get_but_val(but);
 467         lvalue= (int)value;
 468
 469         if(but->bit) {
 470                 w= BTST(lvalue, but->bitnr);
 471                 if(w) lvalue = BCLR(lvalue, but->bitnr);
 472                 else lvalue = BSET(lvalue, but->bitnr);
 473
 474                 if(but->type==TOGR) {
 475                         if(!data->togonly) {
 476                                 lvalue= 1<<(but->bitnr);
 477
 478                                 ui_set_but_val(but, (double)lvalue);
 479                         }
 480                         else {
 481                                 if(lvalue==0) lvalue= 1<<(but->bitnr);
 482                         }
 483                 }
 484
 485                 ui_set_but_val(but, (double)lvalue);
 486                 if(but->type==ICONTOG || but->type==ICONTOGN) ui_check_but(but);
 487         }
 488         else {
 489
 490                 if(value==0.0) push= 1;
 491                 else push= 0;
 492
 493                 if(ELEM3(but->type, TOGN, ICONTOGN, OPTIONN)) push= !push;
 494                 ui_set_but_val(but, (double)push);
 495                 if(but->type==ICONTOG || but->type==ICONTOGN) ui_check_but(but);
 496         }
 497
 498         /* end local hack... */
 499         if(but->type==BUT_TOGDUAL && data->togdual) {
 500                 if(but->pointype==SHO)
 501                         but->poin -= 2;
 502                 else if(but->pointype==INT)
 503                         but->poin -= 4;
 504         }
 505
 506         ui_apply_but_func(C, but);
 507
 508         data->retval= but->retval;
 509         data->applied= 1;
 510 }
 511
 512 static void ui_apply_but_ROW(bContext *C, uiBlock *block, uiBut *but, uiHandleButtonData *data)
 513 {
 514         uiBut *bt;
 515
 516         ui_set_but_val(but, but->hardmax);
 517
 518         /* states of other row buttons */
 519         for(bt= block->buttons.first; bt; bt= bt->next)
 520                 if(bt!=but && bt->poin==but->poin && ELEM(bt->type, ROW, LISTROW))
 521                         ui_check_but(bt);
 522
 523         ui_apply_but_func(C, but);
 524
 525         data->retval= but->retval;
 526         data->applied= 1;
 527 }
 528
 529 static void ui_apply_but_TEX(bContext *C, uiBut *but, uiHandleButtonData *data)
 530 {
 531         if(!data->str)
 532                 return;
 533
 534         ui_set_but_string(C, but, data->str);
 535         ui_check_but(but);
 536
 537         /* give butfunc the original text too */
 538         /* feature used for bone renaming, channels, etc */
 539         /* afterfunc frees origstr */
 540         but->rename_orig= data->origstr;
 541         data->origstr= NULL;
 542         ui_apply_but_func(C, but);
 543
 544         data->retval= but->retval;
 545         data->applied= 1;
 546 }
 547
 548 static void ui_apply_but_NUM(bContext *C, uiBut *but, uiHandleButtonData *data)
 549 {
 550         if(data->str) {
 551                 if(ui_set_but_string(C, but, data->str)) {
 552                         data->value= ui_get_but_val(but);
 553                 }
 554                 else {
 555                         data->cancel= 1;
 556                         return;
 557                 }
 558         }
 559         else
 560                 ui_set_but_val(but, data->value);
 561
 562         ui_check_but(but);
 563         ui_apply_but_func(C, but);
 564
 565         data->retval= but->retval;
 566         data->applied= 1;
 567 }
 568
 569 static void ui_apply_but_TOG3(bContext *C, uiBut *but, uiHandleButtonData *data)
 570 {
 571         if(but->pointype==SHO ) {
 572                 short *sp= (short *)but->poin;
 573
 574                 if( BTST(sp[1], but->bitnr)) {
 575                         sp[1]= BCLR(sp[1], but->bitnr);
 576                         sp[0]= BCLR(sp[0], but->bitnr);
 577                 }
 578                 else if( BTST(sp[0], but->bitnr)) {
 579                         sp[1]= BSET(sp[1], but->bitnr);
 580                 } else {
 581                         sp[0]= BSET(sp[0], but->bitnr);
 582                 }
 583         }
 584         else {
 585                 if( BTST(*(but->poin+2), but->bitnr)) {
 586                         *(but->poin+2)= BCLR(*(but->poin+2), but->bitnr);
 587                         *(but->poin)= BCLR(*(but->poin), but->bitnr);
 588                 }
 589                 else if( BTST(*(but->poin), but->bitnr)) {
 590                         *(but->poin+2)= BSET(*(but->poin+2), but->bitnr);
 591                 } else {
 592                         *(but->poin)= BSET(*(but->poin), but->bitnr);
 593                 }
 594         }
 595
 596         ui_check_but(but);
 597         ui_apply_but_func(C, but);
 598         data->retval= but->retval;
 599         data->applied= 1;
 600 }
 601
 602 static void ui_apply_but_VEC(bContext *C, uiBut *but, uiHandleButtonData *data)
 603 {
 604         ui_set_but_vectorf(but, data->vec);
 605         ui_check_but(but);
 606         ui_apply_but_func(C, but);
 607
 608         data->retval= but->retval;
 609         data->applied= 1;
 610 }
 611
 612 static void ui_apply_but_COLORBAND(bContext *C, uiBut *but, uiHandleButtonData *data)
 613 {
 614         ui_apply_but_func(C, but);
 615         data->retval= but->retval;
 616         data->applied= 1;
 617 }
 618
 619 static void ui_apply_but_CURVE(bContext *C, uiBut *but, uiHandleButtonData *data)
 620 {
 621         ui_apply_but_func(C, but);
 622         data->retval= but->retval;
 623         data->applied= 1;
 624 }
 625
 626 static void ui_apply_but_IDPOIN(bContext *C, uiBut *but, uiHandleButtonData *data)
 627 {
 628         ui_set_but_string(C, but, data->str);
 629         ui_check_but(but);
 630         ui_apply_but_func(C, but);
 631         data->retval= but->retval;
 632         data->applied= 1;
 633 }
 634
 635 #ifdef WITH_INTERNATIONAL
 636 static void ui_apply_but_CHARTAB(bContext *C, uiBut *but, uiHandleButtonData *data)
 637 {
 638         ui_apply_but_func(C, but);
 639         data->retval= but->retval;
 640         data->applied= 1;
 641 }
 642 #endif
 643
 644 /* ****************** drag drop code *********************** */
 645
 646 static int ui_but_mouse_inside_icon(uiBut *but, ARegion *ar, wmEvent *event)
 647 {
 648         rcti rect;
 649         int x= event->x, y= event->y;
 650
 651         ui_window_to_block(ar, but->block, &x, &y);
 652
 653         rect.xmin= but->x1; rect.xmax= but->x2;
 654         rect.ymin= but->y1; rect.ymax= but->y2;
 655
 656         if(but->imb); /* use button size itself */
 657         else if(but->flag & UI_ICON_LEFT) {
 658                 rect.xmax= rect.xmin + (rect.ymax-rect.ymin);
 659         }
 660         else {
 661                 int delta= (rect.xmax-rect.xmin) - (rect.ymax-rect.ymin);
 662                 rect.xmin += delta/2;
 663                 rect.xmax -= delta/2;
 664         }
 665
 666         return BLI_in_rcti(&rect, x, y);
 667 }
 668
 669 static int ui_but_start_drag(bContext *C, uiBut *but, uiHandleButtonData *data, wmEvent *event)
 670 {
 671         /* prevent other WM gestures to start while we try to drag */
 672         WM_gestures_remove(C);
 673
 674         if( ABS(data->dragstartx - event->x) + ABS(data->dragstarty - event->y) > U.dragthreshold ) {
 675                 wmDrag *drag;
 676
 677                 button_activate_state(C, but, BUTTON_STATE_EXIT);
 678                 data->cancel= 1;
 679
 680                 drag= WM_event_start_drag(C, but->icon, but->dragtype, but->dragpoin, ui_get_but_val(but));
 681                 if(but->imb)
 682                         WM_event_drag_image(drag, but->imb, but->imb_scale, but->x2-but->x1, but->y2-but->y1);
 683                 return 1;
 684         }
 685
 686         return 0;
 687 }
 688
 689 /* ********************** linklines *********************** */
 690
 691 static void ui_delete_active_linkline(uiBlock *block)
 692 {
 693         uiBut *but;
 694         uiLink *link;
 695         uiLinkLine *line, *nline;
 696         int a, b;
 697
 698         but= block->buttons.first;
 699         while(but) {
 700                 if(but->type==LINK && but->link) {
 701                         line= but->link->lines.first;
 702                         while(line) {
 703
 704                                 nline= line->next;
 705
 706                                 if(line->flag & UI_SELECT) {
 707                                         BLI_remlink(&but->link->lines, line);
 708
 709                                         link= line->from->link;
 710
 711                                         /* are there more pointers allowed? */
 712                                         if(link->ppoin) {
 713
 714                                                 if(*(link->totlink)==1) {
 715                                                         *(link->totlink)= 0;
 716                                                         MEM_freeN(*(link->ppoin));
 717                                                         *(link->ppoin)= NULL;
 718                                                 }
 719                                                 else {
 720                                                         b= 0;
 721                                                         for(a=0; a< (*(link->totlink)); a++) {
 722
 723                                                                 if( (*(link->ppoin))[a] != line->to->poin ) {
 724                                                                         (*(link->ppoin))[b]= (*(link->ppoin))[a];
 725                                                                         b++;
 726                                                                 }
 727                                                         }
 728                                                         (*(link->totlink))--;
 729                                                 }
 730                                         }
 731                                         else {
 732                                                 *(link->poin)= NULL;
 733                                         }
 734
 735                                         MEM_freeN(line);
 736                                 }
 737                                 line= nline;
 738                         }
 739                 }
 740                 but= but->next;
 741         }
 742 }
 743
 744
 745 static uiLinkLine *ui_is_a_link(uiBut *from, uiBut *to)
 746 {
 747         uiLinkLine *line;
 748         uiLink *link;
 749
 750         link= from->link;
 751         if(link) {
 752                 line= link->lines.first;
 753                 while(line) {
 754                         if(line->from==from && line->to==to) return line;
 755                         line= line->next;
 756                 }
 757         }
 758         return NULL;
 759 }
 760
 761 /* XXX BAD BAD HACK, fixme later **************** */
 762 /* Try to add an AND Controller between the sensor and the actuator logic bricks and to connect them all */
 763 static void ui_add_smart_controller(bContext *C, uiBut *from, uiBut *to)
 764 {
 765         Object *ob= NULL;
 766         bSensor *sens_iter;
 767         bActuator *act_to, *act_iter;
 768         bController *cont;
 769         bController ***sens_from_links;
 770         uiBut *tmp_but;
 771
 772         uiLink *link= from->link;
 773
 774         if(link->ppoin)
 775                 sens_from_links= (bController ***)(link->ppoin);
 776         else return;
 777
 778         act_to = (bActuator *)(to->poin);
 779
 780         /* (1) get the object */
 781         CTX_DATA_BEGIN(C, Object*, ob_iter, selected_editable_objects) {
 782                 for (sens_iter= ob_iter->sensors.first; sens_iter; sens_iter= sens_iter->next)
 783                 {
 784                         if (&(sens_iter->links) == sens_from_links) {
 785                                 ob= ob_iter;
 786                                 break;
 787                         }
 788                 }
 789                 if (ob) break;
 790         } CTX_DATA_END;
 791
 792         if(!ob) return;
 793
 794         /* (2) check if the sensor and the actuator are from the same object */
 795         for (act_iter= ob->actuators.first; act_iter; act_iter= (bActuator *)act_iter->next) {
 796                 if (act_iter == act_to)
 797                         break;
 798         }
 799
 800         // only works if the sensor and the actuator are from the same object
 801         if(!act_iter) return;
 802
 803         /* (3) add a new controller */
 804         if (WM_operator_name_call(C, "LOGIC_OT_controller_add", WM_OP_EXEC_DEFAULT, NULL) & OPERATOR_FINISHED) {
 805                 cont = (bController *)ob->controllers.last;
 806
 807                 /* (4) link the sensor->controller->actuator */
 808                 tmp_but = MEM_callocN(sizeof(uiBut), "uiBut");
 809                 uiSetButLink(tmp_but, (void **)&cont, (void ***)&(cont->links), &(cont->totlinks), from->link->tocode, (int)to->hardmin);
 810                 tmp_but->hardmin= from->link->tocode;
 811                 tmp_but->poin= (char *)cont;
 812
 813                 tmp_but->type= INLINK;
 814                 ui_add_link(C, from, tmp_but);
 815
 816                 tmp_but->type= LINK;
 817                 ui_add_link(C, tmp_but, to);
 818
 819                 /* (5) garbage collection */
 820                 MEM_freeN(tmp_but->link);
 821                 MEM_freeN(tmp_but);
 822         }
 823 }
 824
 825 static void ui_add_link(bContext *C, uiBut *from, uiBut *to)
 826 {
 827         /* in 'from' we have to add a link to 'to' */
 828         uiLink *link;
 829         uiLinkLine *line;
 830         void **oldppoin;
 831         int a;
 832
 833         if( (line= ui_is_a_link(from, to)) ) {
 834                 line->flag |= UI_SELECT;
 835                 ui_delete_active_linkline(from->block);
 836                 return;
 837         }
 838
 839         if (from->type==INLINK && to->type==INLINK) {
 840                 return;
 841         }
 842         else if (from->type==LINK && to->type==INLINK) {
 843                 if( from->link->tocode != (int)to->hardmin ) {
 844                         ui_add_smart_controller(C, from, to);
 845                         return;
 846                 }
 847         }
 848         else if(from->type==INLINK && to->type==LINK) {
 849                 if( to->link->tocode == (int)from->hardmin ) {
 850                         return;
 851                 }
 852         }
 853
 854         link= from->link;
 855
 856         /* are there more pointers allowed? */
 857         if(link->ppoin) {
 858                 oldppoin= *(link->ppoin);
 859
 860                 (*(link->totlink))++;
 861                 *(link->ppoin)= MEM_callocN( *(link->totlink)*sizeof(void *), "new link");
 862
 863                 for(a=0; a< (*(link->totlink))-1; a++) {
 864                         (*(link->ppoin))[a]= oldppoin[a];
 865                 }
 866                 (*(link->ppoin))[a]= to->poin;
 867
 868                 if(oldppoin) MEM_freeN(oldppoin);
 869         }
 870         else {
 871                 *(link->poin)= to->poin;
 872         }
 873
 874 }
 875
 876
 877 static void ui_apply_but_LINK(bContext *C, uiBut *but, uiHandleButtonData *data)
 878 {
 879         ARegion *ar= CTX_wm_region(C);
 880         uiBut *bt;
 881
 882         for(bt= but->block->buttons.first; bt; bt= bt->next) {
 883                 if( ui_mouse_inside_button(ar, bt, but->linkto[0]+ar->winrct.xmin, but->linkto[1]+ar->winrct.ymin) )
 884                         break;
 885         }
 886         if(bt && bt!=but) {
 887                 if (!ELEM(bt->type, LINK, INLINK) || !ELEM(but->type, LINK, INLINK))
 888                         return;
 889
 890                 if(but->type==LINK) ui_add_link(C, but, bt);
 891                 else ui_add_link(C, bt, but);
 892
 893                 ui_apply_but_func(C, but);
 894                 data->retval= but->retval;
 895         }
 896         data->applied= 1;
 897 }
 898
 899 static void ui_apply_but_IMAGE(bContext *C, uiBut *but, uiHandleButtonData *data)
 900 {
 901         ui_apply_but_func(C, but);
 902         data->retval= but->retval;
 903         data->applied= 1;
 904 }
 905
 906 static void ui_apply_but_HISTOGRAM(bContext *C, uiBut *but, uiHandleButtonData *data)
 907 {
 908         ui_apply_but_func(C, but);
 909         data->retval= but->retval;
 910         data->applied= 1;
 911 }
 912
 913 static void ui_apply_but_WAVEFORM(bContext *C, uiBut *but, uiHandleButtonData *data)
 914 {
 915         ui_apply_but_func(C, but);
 916         data->retval= but->retval;
 917         data->applied= 1;
 918 }
 919
 920 static void ui_apply_but_TRACKPREVIEW(bContext *C, uiBut *but, uiHandleButtonData *data)
 921 {
 922         ui_apply_but_func(C, but);
 923         data->retval= but->retval;
 924         data->applied= 1;
 925 }
 926
 927
 928 static void ui_apply_button(bContext *C, uiBlock *block, uiBut *but, uiHandleButtonData *data, int interactive)
 929 {
 930         char *editstr;
 931         double *editval;
 932         float *editvec;
 933         ColorBand *editcoba;
 934         CurveMapping *editcumap;
 935
 936         data->retval= 0;
 937
 938         /* if we cancel and have not applied yet, there is nothing to do,
 939          * otherwise we have to restore the original value again */
 940         if(data->cancel) {
 941                 if(!data->applied)
 942                         return;
 943
 944                 if(data->str) MEM_freeN(data->str);
 945                 data->str= data->origstr;
 946                 data->origstr= NULL;
 947                 data->value= data->origvalue;
 948                 data->origvalue= 0.0;
 949                 VECCOPY(data->vec, data->origvec);
 950                 data->origvec[0]= data->origvec[1]= data->origvec[2]= 0.0f;
 951         }
 952         else {
 953                 /* we avoid applying interactive edits a second time
 954                  * at the end with the appliedinteractive flag */
 955                 if(interactive)
 956                         data->appliedinteractive= 1;
 957                 else if(data->appliedinteractive)
 958                         return;
 959         }
 960
 961         /* ensures we are writing actual values */
 962         editstr= but->editstr;
 963         editval= but->editval;
 964         editvec= but->editvec;
 965         editcoba= but->editcoba;
 966         editcumap= but->editcumap;
 967         but->editstr= NULL;
 968         but->editval= NULL;
 969         but->editvec= NULL;
 970         but->editcoba= NULL;
 971         but->editcumap= NULL;
 972
 973         /* handle different types */
 974         switch(but->type) {
 975                 case BUT:
 976                         ui_apply_but_BUT(C, but, data);
 977                         break;
 978                 case TEX:
 979                 case SEARCH_MENU:
 980                         ui_apply_but_TEX(C, but, data);
 981                         break;
 982                 case TOGBUT:
 983                 case TOG:
 984                 case TOGR:
 985                 case ICONTOG:
 986                 case ICONTOGN:
 987                 case TOGN:
 988                 case BUT_TOGDUAL:
 989                 case OPTION:
 990                 case OPTIONN:
 991                         ui_apply_but_TOG(C, but, data);
 992                         break;
 993                 case ROW:
 994                 case LISTROW:
 995                         ui_apply_but_ROW(C, block, but, data);
 996                         break;
 997                 case SCROLL:
 998                 case NUM:
 999                 case NUMABS:
1000                 case SLI:
1001                 case NUMSLI:
1002                         ui_apply_but_NUM(C, but, data);
1003                         break;
1004                 case HSVSLI:
1005                         break;
1006                 case TOG3:
1007                         ui_apply_but_TOG3(C, but, data);
1008                         break;
1009                 case MENU:
1010                 case ICONROW:
1011                 case ICONTEXTROW:
1012                 case BLOCK:
1013                 case PULLDOWN:
1014                 case COL:
1015                         ui_apply_but_BLOCK(C, but, data);
1016                         break;
1017                 case BUTM:
1018                         ui_apply_but_BUTM(C, but, data);
1019                         break;
1020                 case BUT_NORMAL:
1021                 case HSVCUBE:
1022                 case HSVCIRCLE:
1023                         ui_apply_but_VEC(C, but, data);
1024                         break;
1025                 case BUT_COLORBAND:
1026                         ui_apply_but_COLORBAND(C, but, data);
1027                         break;
1028                 case BUT_CURVE:
1029                         ui_apply_but_CURVE(C, but, data);
1030                         break;
1031                 case IDPOIN:
1032                         ui_apply_but_IDPOIN(C, but, data);
1033                         break;
1034 #ifdef WITH_INTERNATIONAL
1035                 case CHARTAB:
1036                         ui_apply_but_CHARTAB(C, but, data);
1037                         break;
1038 #endif
1039                 case KEYEVT:
1040                 case HOTKEYEVT:
1041                         ui_apply_but_BUT(C, but, data);
1042                         break;
1043                 case LINK:
1044                 case INLINK:
1045                         ui_apply_but_LINK(C, but, data);
1046                         break;
1047                 case BUT_IMAGE:
1048                         ui_apply_but_IMAGE(C, but, data);
1049                         break;
1050                 case HISTOGRAM:
1051                         ui_apply_but_HISTOGRAM(C, but, data);
1052                         break;
1053                 case WAVEFORM:
1054                         ui_apply_but_WAVEFORM(C, but, data);
1055                         break;
1056                 case TRACKPREVIEW:
1057                         ui_apply_but_TRACKPREVIEW(C, but, data);
1058                         break;
1059                 default:
1060                         break;
1061         }
1062
1063         but->editstr= editstr;
1064         but->editval= editval;
1065         but->editvec= editvec;
1066         but->editcoba= editcoba;
1067         but->editcumap= editcumap;
1068 }
1069
1070 /* ******************* drop event ********************  */
1071
1072 /* only call if event type is EVT_DROP */
1073 static void ui_but_drop(bContext *C, wmEvent *event, uiBut *but, uiHandleButtonData *data)
1074 {
1075         wmDrag *wmd;
1076         ListBase *drags= event->customdata; /* drop event type has listbase customdata by default */
1077
1078         for(wmd= drags->first; wmd; wmd= wmd->next) {
1079                 if(wmd->type==WM_DRAG_ID) {
1080                         /* align these types with UI_but_active_drop_name */
1081                         if(ELEM3(but->type, TEX, IDPOIN, SEARCH_MENU)) {
1082                                 ID *id= (ID *)wmd->poin;
1083
1084                                 if(but->poin==NULL && but->rnapoin.data==NULL) {}
1085                                 button_activate_state(C, but, BUTTON_STATE_TEXT_EDITING);
1086                                 BLI_strncpy(data->str, id->name+2, data->maxlen);
1087                                 button_activate_state(C, but, BUTTON_STATE_EXIT);
1088                         }
1089                 }
1090         }
1091
1092 }
1093
1094 /* ******************* copy and paste ********************  */
1095
1096 /* c = copy, v = paste */
1097 static void ui_but_copy_paste(bContext *C, uiBut *but, uiHandleButtonData *data, char mode)
1098 {
1099         static ColorBand but_copypaste_coba = {0};
1100         char buf[UI_MAX_DRAW_STR+1]= {0};
1101         double val;
1102
1103         if(mode=='v' && but->lock)
1104                 return;
1105
1106         if(mode=='v') {
1107                 /* extract first line from clipboard in case of multi-line copies */
1108                 char *p, *pbuf= WM_clipboard_text_get(0);
1109                 p= pbuf;
1110                 if(p) {
1111                         int i = 0;
1112                         while (*p && *p!='\r' && *p!='\n' && i<UI_MAX_DRAW_STR) {
1113                                 buf[i++]=*p;
1114                                 p++;
1115                         }
1116                         buf[i]= 0;
1117                         MEM_freeN(pbuf);
1118                 }
1119         }
1120
1121         /* numeric value */
1122         if ELEM4(but->type, NUM, NUMABS, NUMSLI, HSVSLI) {
1123
1124                 if(but->poin==NULL && but->rnapoin.data==NULL);
1125                 else if(mode=='c') {
1126                         if(ui_is_but_float(but))
1127                                 BLI_snprintf(buf, sizeof(buf), "%f", ui_get_but_val(but));
1128                         else
1129                                 BLI_snprintf(buf, sizeof(buf), "%d", (int)ui_get_but_val(but));
1130
1131                         WM_clipboard_text_set(buf, 0);
1132                 }
1133                 else {
1134                         if (sscanf(buf, " %lf ", &val) == 1) {
1135                                 button_activate_state(C, but, BUTTON_STATE_NUM_EDITING);
1136                                 data->value= val;
1137                                 button_activate_state(C, but, BUTTON_STATE_EXIT);
1138                         }
1139                 }
1140         }
1141
1142         /* RGB triple */
1143         else if(but->type==COL) {
1144                 float rgb[3];
1145
1146                 if(but->poin==NULL && but->rnapoin.data==NULL);
1147                 else if(mode=='c') {
1148
1149                         ui_get_but_vectorf(but, rgb);
1150                         BLI_snprintf(buf, sizeof(buf), "[%f, %f, %f]", rgb[0], rgb[1], rgb[2]);
1151                         WM_clipboard_text_set(buf, 0);
1152
1153                 }
1154                 else {
1155                         if (sscanf(buf, "[%f, %f, %f]", &rgb[0], &rgb[1], &rgb[2]) == 3) {
1156                                 button_activate_state(C, but, BUTTON_STATE_NUM_EDITING);
1157                                 ui_set_but_vectorf(but, rgb);
1158                                 button_activate_state(C, but, BUTTON_STATE_EXIT);
1159                         }
1160                 }
1161         }
1162
1163         /* text/string and ID data */
1164         else if(ELEM3(but->type, TEX, IDPOIN, SEARCH_MENU)) {
1165                 uiHandleButtonData *active_data= but->active;
1166
1167                 if(but->poin==NULL && but->rnapoin.data==NULL);
1168                 else if(mode=='c') {
1169                         button_activate_state(C, but, BUTTON_STATE_TEXT_EDITING);
1170                         BLI_strncpy(buf, active_data->str, UI_MAX_DRAW_STR);
1171                         WM_clipboard_text_set(active_data->str, 0);
1172                         active_data->cancel= 1;
1173                         button_activate_state(C, but, BUTTON_STATE_EXIT);
1174                 }
1175                 else {
1176                         button_activate_state(C, but, BUTTON_STATE_TEXT_EDITING);
1177                         BLI_strncpy(active_data->str, buf, active_data->maxlen);
1178                         if(but->type == SEARCH_MENU) {
1179                                 /* else uiSearchboxData.active member is not updated [#26856] */
1180                                 ui_searchbox_update(C, data->searchbox, but, 1);
1181                         }
1182                         button_activate_state(C, but, BUTTON_STATE_EXIT);
1183                 }
1184         }
1185         /* colorband (not supported by system clipboard) */
1186         else if(but->type==BUT_COLORBAND) {
1187                 if(mode=='c') {
1188                         if(but->poin==NULL)
1189                                 return;
1190
1191                         memcpy(&but_copypaste_coba, but->poin, sizeof(ColorBand));
1192                 }
1193                 else {
1194                         if(but_copypaste_coba.tot==0)
1195                                 return;
1196
1197                         if(!but->poin)
1198                                 but->poin= MEM_callocN(sizeof(ColorBand), "colorband");
1199
1200                         button_activate_state(C, but, BUTTON_STATE_NUM_EDITING);
1201                         memcpy(data->coba, &but_copypaste_coba, sizeof(ColorBand) );
1202                         button_activate_state(C, but, BUTTON_STATE_EXIT);
1203                 }
1204         }
1205         /* operator button (any type) */
1206         else if (but->optype) {
1207                 if(mode=='c') {
1208                         PointerRNA *opptr;
1209                         char *str;
1210                         opptr= uiButGetOperatorPtrRNA(but); /* allocated when needed, the button owns it */
1211
1212                         str= WM_operator_pystring(C, but->optype, opptr, 0);
1213
1214                         WM_clipboard_text_set(str, 0);
1215
1216                         MEM_freeN(str);
1217                 }
1218         }
1219 }
1220
1221 /* ************* in-button text selection/editing ************* */
1222
1223 /* return 1 if char ch is special character, otherwise return 0 */
1224 static short test_special_char(char ch)
1225 {
1226         switch(ch) {
1227                 case '\\':
1228                 case '/':
1229                 case '~':
1230                 case '!':
1231                 case '@':
1232                 case '#':
1233                 case '$':
1234                 case '%':
1235                 case '^':
1236                 case '&':
1237                 case '*':
1238                 case '(':
1239                 case ')':
1240                 case '+':
1241                 case '=':
1242                 case '{':
1243                 case '}':
1244                 case '[':
1245                 case ']':
1246                 case ':':
1247                 case ';':
1248                 case '\'':
1249                 case '\"': // " - an extra closing one for Aligorith's text editor
1250                 case '<':
1251                 case '>':
1252                 case ',':
1253                 case '.':
1254                 case '?':
1255                 case '_':
1256                 case '-':
1257                 case ' ':
1258                         return 1;
1259                         break;
1260                 default:
1261                         break;
1262         }
1263         return 0;
1264 }
1265
1266 static int ui_textedit_delete_selection(uiBut *but, uiHandleButtonData *data)
1267 {
1268         char *str= data->str;
1269         int len= strlen(str);
1270         int change= 0;
1271         if(but->selsta != but->selend && len) {
1272                 memmove( str+but->selsta, str+but->selend, (len - but->selend) + 1 );
1273                 change= 1;
1274         }
1275
1276         but->pos = but->selend = but->selsta;
1277         return change;
1278 }
1279
1280 /* note, but->block->aspect is used here, when drawing button style is getting scaled too */
1281 static void ui_textedit_set_cursor_pos(uiBut *but, uiHandleButtonData *data, short x)
1282 {
1283         uiStyle *style= UI_GetStyle();  // XXX pass on as arg
1284         uiFontStyle *fstyle = &style->widget;
1285         int startx= but->x1;
1286         char *origstr;
1287
1288         uiStyleFontSet(fstyle);
1289
1290         if (fstyle->kerning==1) /* for BLF_width */
1291                 BLF_enable(fstyle->uifont_id, BLF_KERNING_DEFAULT);
1292
1293         origstr= MEM_callocN(sizeof(char)*data->maxlen, "ui_textedit origstr");
1294
1295         BLI_strncpy(origstr, but->drawstr, data->maxlen);
1296
1297         /* XXX solve generic */
1298         if(but->type==NUM || but->type==NUMSLI)
1299                 startx += (int)(0.5f*(but->y2 - but->y1));
1300         else if(ELEM(but->type, TEX, SEARCH_MENU)) {
1301                 startx += 5;
1302                 if (but->flag & UI_HAS_ICON)
1303                         startx += UI_DPI_ICON_SIZE;
1304         }
1305
1306         /* mouse dragged outside the widget to the left */
1307         if (x < startx && but->ofs > 0) {
1308                 int i= but->ofs;
1309
1310                 origstr[but->ofs] = 0;
1311
1312                 while (i > 0) {
1313                         i--;
1314                         if (BLF_width(fstyle->uifont_id, origstr+i) > (startx - x)*0.25f) break;        // 0.25 == scale factor for less sensitivity
1315                 }
1316                 but->ofs = i;
1317                 but->pos = but->ofs;
1318         }
1319         /* mouse inside the widget */
1320         else if (x >= startx) {
1321                 float aspect= (but->block->aspect);
1322
1323                 but->pos= strlen(origstr)-but->ofs;
1324
1325                 /* XXX does not take zoom level into account */
1326                 while (startx + aspect*BLF_width(fstyle->uifont_id, origstr+but->ofs) > x) {
1327                         if (but->pos <= 0) break;
1328                         but->pos--;
1329                         origstr[but->pos+but->ofs] = 0;
1330                 }
1331                 but->pos += but->ofs;
1332                 if(but->pos<0) but->pos= 0;
1333         }
1334
1335         if (fstyle->kerning == 1)
1336                 BLF_disable(fstyle->uifont_id, BLF_KERNING_DEFAULT);
1337
1338         MEM_freeN(origstr);
1339 }
1340
1341 static void ui_textedit_set_cursor_select(uiBut *but, uiHandleButtonData *data, short x)
1342 {
1343         if (x > data->selstartx) data->selextend = EXTEND_RIGHT;
1344         else if (x < data->selstartx) data->selextend = EXTEND_LEFT;
1345
1346         ui_textedit_set_cursor_pos(but, data, x);
1347
1348         if (data->selextend == EXTEND_RIGHT) but->selend = but->pos;
1349         if (data->selextend == EXTEND_LEFT) but->selsta = but->pos;
1350
1351         ui_check_but(but);
1352 }
1353
1354 static int ui_textedit_type_ascii(uiBut *but, uiHandleButtonData *data, char ascii)
1355 {
1356         char *str;
1357         int len, x, changed= 0;
1358
1359         str= data->str;
1360         len= strlen(str);
1361
1362         if(len-(but->selend - but->selsta)+1 <= data->maxlen) {
1363                 /* type over the current selection */
1364                 if ((but->selend - but->selsta) > 0)
1365                         changed= ui_textedit_delete_selection(but, data);
1366
1367                 len= strlen(str);
1368                 if(len+1 < data->maxlen) {
1369                         for(x= data->maxlen; x>but->pos; x--)
1370                                 str[x]= str[x-1];
1371                         str[but->pos]= ascii;
1372                         str[len+1]= '\0';
1373
1374                         but->pos++;
1375                         changed= 1;
1376                 }
1377         }
1378
1379         return changed;
1380 }
1381
1382 static void ui_textedit_move(uiBut *but, uiHandleButtonData *data, int direction, int select, int jump)
1383 {
1384         char *str;
1385         int len;
1386
1387         str= data->str;
1388         len= strlen(str);
1389
1390         if(direction) { /* right*/
1391                 /* if there's a selection */
1392                 if ((but->selend - but->selsta) > 0) {
1393                         /* extend the selection based on the first direction taken */
1394                         if(select) {
1395                                 if (!data->selextend) {
1396                                         data->selextend = EXTEND_RIGHT;
1397                                 }
1398                                 if (data->selextend == EXTEND_RIGHT) {
1399                                         but->selend++;
1400                                         if (but->selend > len) but->selend = len;
1401                                 } else if (data->selextend == EXTEND_LEFT) {
1402                                         but->selsta++;
1403                                         /* if the selection start has gone past the end,
1404                                         * flip them so they're in sync again */
1405                                         if (but->selsta == but->selend) {
1406                                                 but->pos = but->selsta;
1407                                                 data->selextend = EXTEND_RIGHT;
1408                                         }
1409                                 }
1410                         } else {
1411                                 but->selsta = but->pos = but->selend;
1412                                 data->selextend = 0;
1413                         }
1414                 } else {
1415                         if(select) {
1416                                 /* make a selection, starting from the cursor position */
1417                                 int tlen;
1418                                 but->selsta = but->pos;
1419
1420                                 but->pos++;
1421                                 if(but->pos > (tlen= strlen(str))) but->pos= tlen;
1422
1423                                 but->selend = but->pos;
1424                         } else if(jump) {
1425                                 /* jump betweenn special characters (/,\,_,-, etc.),
1426                                  * look at function test_special_char() for complete
1427                                  * list of special character, ctr -> */
1428                                 while(but->pos < len) {
1429                                         but->pos++;
1430                                         if(test_special_char(str[but->pos])) break;
1431                                 }
1432                         } else {
1433                                 int tlen;
1434                                 but->pos++;
1435                                 if(but->pos > (tlen= strlen(str))) but->pos= tlen;
1436                         }
1437                 }
1438         }
1439         else { /* left */
1440                 /* if there's a selection */
1441                 if ((but->selend - but->selsta) > 0) {
1442                         /* extend the selection based on the first direction taken */
1443                         if(select) {
1444                                 if (!data->selextend) {
1445                                         data->selextend = EXTEND_LEFT;
1446                                 }
1447                                 if (data->selextend == EXTEND_LEFT) {
1448                                         but->selsta--;
1449                                         if (but->selsta < 0) but->selsta = 0;
1450                                 } else if (data->selextend == EXTEND_RIGHT) {
1451                                         but->selend--;
1452                                         /* if the selection start has gone past the end,
1453                                         * flip them so they're in sync again */
1454                                         if (but->selsta == but->selend) {
1455                                                 but->pos = but->selsta;
1456                                                 data->selextend = EXTEND_LEFT;
1457                                         }
1458                                 }
1459                         } else {
1460                                 but->pos = but->selend = but->selsta;
1461                                 data->selextend = 0;
1462                         }
1463                 } else {
1464                         if(select) {
1465                                 /* make a selection, starting from the cursor position */
1466                                 but->selend = but->pos;
1467
1468                                 but->pos--;
1469                                 if(but->pos<0) but->pos= 0;
1470
1471                                 but->selsta = but->pos;
1472                         } else if(jump) {
1473                                 /* jump betweenn special characters (/,\,_,-, etc.),
1474                                  * look at function test_special_char() for complete
1475                                  * list of special character, ctr -> */
1476                                 while(but->pos > 0){
1477                                         but->pos--;
1478                                         if(test_special_char(str[but->pos])) break;
1479                                 }
1480                         } else {
1481                                 if(but->pos>0) but->pos--;
1482                         }
1483                 }
1484         }
1485 }
1486
1487 static void ui_textedit_move_end(uiBut *but, uiHandleButtonData *data, int direction, int select)
1488 {
1489         char *str;
1490
1491         str= data->str;
1492
1493         if(direction) { /* right */
1494                 if(select) {
1495                         but->selsta = but->pos;
1496                         but->selend = strlen(str);
1497                         data->selextend = EXTEND_RIGHT;
1498                 } else {
1499                         but->selsta = but->selend = but->pos= strlen(str);
1500                 }
1501         }
1502         else { /* left */
1503                 if(select) {
1504                         but->selend = but->pos;
1505                         but->selsta = 0;
1506                         data->selextend = EXTEND_LEFT;
1507                 } else {
1508                         but->selsta = but->selend = but->pos= 0;
1509                 }
1510         }
1511 }
1512
1513 static int ui_textedit_delete(uiBut *but, uiHandleButtonData *data, int direction, int all)
1514 {
1515         char *str;
1516         int len, x, changed= 0;
1517
1518         str= data->str;
1519         len= strlen(str);
1520
1521         if(all) {
1522                 if(len) changed=1;
1523                 str[0]= 0;
1524                 but->pos= 0;
1525         }
1526         else if(direction) { /* delete */
1527                 if ((but->selend - but->selsta) > 0) {
1528                         changed= ui_textedit_delete_selection(but, data);
1529                 }
1530                 else if(but->pos>=0 && but->pos<len) {
1531                         for(x=but->pos; x<len; x++)
1532                                 str[x]= str[x+1];
1533                         str[len-1]='\0';
1534                         changed= 1;
1535                 }
1536         }
1537         else { /* backspace */
1538                 if(len!=0) {
1539                         if ((but->selend - but->selsta) > 0) {
1540                                 changed= ui_textedit_delete_selection(but, data);
1541                         }
1542                         else if(but->pos>0) {
1543                                 for(x=but->pos; x<len; x++)
1544                                         str[x-1]= str[x];
1545                                 str[len-1]='\0';
1546
1547                                 but->pos--;
1548                                 changed= 1;
1549                         }
1550                 }
1551         }
1552
1553         return changed;
1554 }
1555
1556 static int ui_textedit_autocomplete(bContext *C, uiBut *but, uiHandleButtonData *data)
1557 {
1558         char *str;
1559         int changed= 1;
1560
1561         str= data->str;
1562
1563         if(data->searchbox)
1564                 ui_searchbox_autocomplete(C, data->searchbox, but, data->str);
1565         else
1566                 but->autocomplete_func(C, str, but->autofunc_arg);
1567
1568         but->pos= strlen(str);
1569         but->selsta= but->selend= but->pos;
1570
1571         return changed;
1572 }
1573
1574 static int ui_textedit_copypaste(uiBut *but, uiHandleButtonData *data, int paste, int copy, int cut)
1575 {
1576         char buf[UI_MAX_DRAW_STR]={0};
1577         char *str, *p, *pbuf;
1578         int len, x, i, changed= 0;
1579
1580         str= data->str;
1581         len= strlen(str);
1582
1583         /* paste */
1584         if (paste) {
1585                 /* extract the first line from the clipboard */
1586                 p = pbuf= WM_clipboard_text_get(0);
1587
1588                 if(p && p[0]) {
1589                         unsigned int y;
1590                         i= 0;
1591                         while (*p && *p!='\r' && *p!='\n' && i<UI_MAX_DRAW_STR-1) {
1592                                 buf[i++]=*p;
1593                                 p++;
1594                         }
1595                         buf[i]= 0;
1596
1597                         /* paste over the current selection */
1598                         if ((but->selend - but->selsta) > 0) {
1599                                 ui_textedit_delete_selection(but, data);
1600                                 len= strlen(str);
1601                         }
1602
1603                         for (y=0; y<strlen(buf); y++)
1604                         {
1605                                 /* add contents of buffer */
1606                                 if(len+1 < data->maxlen) {
1607                                         for(x= data->maxlen; x>but->pos; x--)
1608                                                 str[x]= str[x-1];
1609                                         str[but->pos]= buf[y];
1610                                         but->pos++;
1611                                         len++;
1612                                         str[len]= '\0';
1613                                 }
1614                         }
1615
1616                         changed= 1;
1617                 }
1618
1619                 if(pbuf)
1620                         MEM_freeN(pbuf);
1621         }
1622         /* cut & copy */
1623         else if (copy || cut) {
1624                 /* copy the contents to the copypaste buffer */
1625                 for(x= but->selsta; x <= but->selend; x++) {
1626                         if (x==but->selend)
1627                                 buf[x] = '\0';
1628                         else
1629                                 buf[(x - but->selsta)] = str[x];
1630                 }
1631
1632                 WM_clipboard_text_set(buf, 0);
1633
1634                 /* for cut only, delete the selection afterwards */
1635                 if(cut)
1636                         if((but->selend - but->selsta) > 0)
1637                                 changed= ui_textedit_delete_selection(but, data);
1638         }
1639
1640         return changed;
1641 }
1642
1643 static void ui_textedit_begin(bContext *C, uiBut *but, uiHandleButtonData *data)
1644 {
1645         if(data->str) {
1646                 MEM_freeN(data->str);
1647                 data->str= NULL;
1648         }
1649
1650         /* retrieve string */
1651         data->maxlen= ui_get_but_string_max_length(but);
1652         data->str= MEM_callocN(sizeof(char)*data->maxlen + 1, "textedit str");
1653         ui_get_but_string(but, data->str, data->maxlen);
1654
1655         if(ELEM3(but->type, NUM, NUMABS, NUMSLI)) {
1656                 /* XXX: we dont have utf editing yet so for numbers its best to strip out utf chars
1657                  * this is so the deg' synbol isnt included in number editing fields: bug 22274 */
1658                 int i;
1659                 for(i=0; data->str[i]; i++) {
1660                         if(!isascii(data->str[i])) {
1661                                 /* no stripping actually: just convert to alt name */
1662                                 ui_convert_to_unit_alt_name(but, data->str, data->maxlen);
1663                                 break;
1664                         }
1665                 }
1666         }
1667
1668
1669         data->origstr= BLI_strdup(data->str);
1670         data->selextend= 0;
1671         data->selstartx= 0;
1672
1673         /* set cursor pos to the end of the text */
1674         but->editstr= data->str;
1675         but->pos= strlen(data->str);
1676         but->selsta= 0;
1677         but->selend= strlen(data->str);
1678
1679         /* optional searchbox */
1680         if(but->type==SEARCH_MENU) {
1681                 data->searchbox= ui_searchbox_create(C, data->region, but);
1682                 ui_searchbox_update(C, data->searchbox, but, 1); /* 1= reset */
1683         }
1684
1685         ui_check_but(but);
1686
1687         WM_cursor_modal(CTX_wm_window(C), BC_TEXTEDITCURSOR);
1688 }
1689
1690 static void ui_textedit_end(bContext *C, uiBut *but, uiHandleButtonData *data)
1691 {
1692         if(but) {
1693                 if(ui_is_utf8_but(but)) {
1694                         int strip= BLI_utf8_invalid_strip(but->editstr, strlen(but->editstr));
1695                         /* not a file?, strip non utf-8 chars */
1696                         if(strip) {
1697                                 /* wont happen often so isnt that annoying to keep it here for a while */
1698                                 printf("invalid utf8 - stripped chars %d\n", strip);
1699                         }
1700                 }
1701
1702                 if(data->searchbox) {
1703                         if(data->cancel==0)
1704                                 ui_searchbox_apply(but, data->searchbox);
1705
1706                         ui_searchbox_free(C, data->searchbox);
1707                         data->searchbox= NULL;
1708                 }
1709
1710                 but->editstr= NULL;
1711                 but->pos= -1;
1712         }
1713
1714         WM_cursor_restore(CTX_wm_window(C));
1715 }
1716
1717 static void ui_textedit_next_but(uiBlock *block, uiBut *actbut, uiHandleButtonData *data)
1718 {
1719         uiBut *but;
1720
1721         /* label and roundbox can overlap real buttons (backdrops...) */
1722         if(ELEM4(actbut->type, LABEL, SEPR, ROUNDBOX, LISTBOX))
1723                 return;
1724
1725         for(but= actbut->next; but; but= but->next) {
1726                 if(ELEM7(but->type, TEX, NUM, NUMABS, NUMSLI, HSVSLI, IDPOIN, SEARCH_MENU)) {
1727                         if(!(but->flag & UI_BUT_DISABLED)) {
1728                                 data->postbut= but;
1729                                 data->posttype= BUTTON_ACTIVATE_TEXT_EDITING;
1730                                 return;
1731                         }
1732                 }
1733         }
1734         for(but= block->buttons.first; but!=actbut; but= but->next) {
1735                 if(ELEM7(but->type, TEX, NUM, NUMABS, NUMSLI, HSVSLI, IDPOIN, SEARCH_MENU)) {
1736                         if(!(but->flag & UI_BUT_DISABLED)) {
1737                                 data->postbut= but;
1738                                 data->posttype= BUTTON_ACTIVATE_TEXT_EDITING;
1739                                 return;
1740                         }
1741                 }
1742         }
1743 }
1744
1745 static void ui_textedit_prev_but(uiBlock *block, uiBut *actbut, uiHandleButtonData *data)
1746 {
1747         uiBut *but;
1748
1749         /* label and roundbox can overlap real buttons (backdrops...) */
1750         if(ELEM4(actbut->type, LABEL, SEPR, ROUNDBOX, LISTBOX))
1751                 return;
1752
1753         for(but= actbut->prev; but; but= but->prev) {
1754                 if(ELEM7(but->type, TEX, NUM, NUMABS, NUMSLI, HSVSLI, IDPOIN, SEARCH_MENU)) {
1755                         if(!(but->flag & UI_BUT_DISABLED)) {
1756                                 data->postbut= but;
1757                                 data->posttype= BUTTON_ACTIVATE_TEXT_EDITING;
1758                                 return;
1759                         }
1760                 }
1761         }
1762         for(but= block->buttons.last; but!=actbut; but= but->prev) {
1763                 if(ELEM7(but->type, TEX, NUM, NUMABS, NUMSLI, HSVSLI, IDPOIN, SEARCH_MENU)) {
1764                         if(!(but->flag & UI_BUT_DISABLED)) {
1765                                 data->postbut= but;
1766                                 data->posttype= BUTTON_ACTIVATE_TEXT_EDITING;
1767                                 return;
1768                         }
1769                 }
1770         }
1771 }
1772
1773
1774 static void ui_do_but_textedit(bContext *C, uiBlock *block, uiBut *but, uiHandleButtonData *data, wmEvent *event)
1775 {
1776         int mx, my, changed= 0, inbox=0, update= 0, retval= WM_UI_HANDLER_CONTINUE;
1777
1778         switch(event->type) {
1779                 case WHEELUPMOUSE:
1780                 case WHEELDOWNMOUSE:
1781                 case MOUSEMOVE:
1782                         if(data->searchbox)
1783                                 ui_searchbox_event(C, data->searchbox, but, event);
1784
1785                         break;
1786                 case RIGHTMOUSE:
1787                 case ESCKEY:
1788                         data->cancel= 1;
1789                         data->escapecancel= 1;
1790                         button_activate_state(C, but, BUTTON_STATE_EXIT);
1791                         retval= WM_UI_HANDLER_BREAK;
1792                         break;
1793                 case LEFTMOUSE: {
1794
1795                         /* exit on LMB only on RELEASE for searchbox, to mimic other popups, and allow multiple menu levels */
1796                         if(data->searchbox)
1797                                 inbox= ui_searchbox_inside(data->searchbox, event->x, event->y);
1798
1799                         if(event->val==KM_PRESS) {
1800                                 mx= event->x;
1801                                 my= event->y;
1802                                 ui_window_to_block(data->region, block, &mx, &my);
1803
1804                                 if (ui_but_contains_pt(but, mx, my)) {
1805                                         ui_textedit_set_cursor_pos(but, data, mx);
1806                                         but->selsta = but->selend = but->pos;
1807                                         data->selstartx= mx;
1808
1809                                         button_activate_state(C, but, BUTTON_STATE_TEXT_SELECTING);
1810                                         retval= WM_UI_HANDLER_BREAK;
1811                                 }
1812                                 else if(inbox==0) {
1813                                         /* if searchbox, click outside will cancel */
1814                                         if(data->searchbox)
1815                                                 data->cancel= data->escapecancel= 1;
1816                                         button_activate_state(C, but, BUTTON_STATE_EXIT);
1817                                         retval= WM_UI_HANDLER_BREAK;
1818                                 }
1819                         }
1820                         else if(inbox) {
1821                                 button_activate_state(C, but, BUTTON_STATE_EXIT);
1822                                 retval= WM_UI_HANDLER_BREAK;
1823                         }
1824                         break;
1825                 }
1826         }
1827
1828         if(event->val==KM_PRESS) {
1829                 switch (event->type) {
1830                         case VKEY:
1831                         case XKEY:
1832                         case CKEY:
1833                                 if(event->ctrl || event->oskey) {
1834                                         if(event->type == VKEY)
1835                                                 changed= ui_textedit_copypaste(but, data, 1, 0, 0);
1836                                         else if(event->type == CKEY)
1837                                                 changed= ui_textedit_copypaste(but, data, 0, 1, 0);
1838                                         else if(event->type == XKEY)
1839                                                 changed= ui_textedit_copypaste(but, data, 0, 0, 1);
1840
1841                                         retval= WM_UI_HANDLER_BREAK;
1842                                 }
1843                                 break;
1844                         case RIGHTARROWKEY:
1845                                 ui_textedit_move(but, data, 1, event->shift, event->ctrl);
1846                                 retval= WM_UI_HANDLER_BREAK;
1847                                 break;
1848                         case LEFTARROWKEY:
1849                                 ui_textedit_move(but, data, 0, event->shift, event->ctrl);
1850                                 retval= WM_UI_HANDLER_BREAK;
1851                                 break;
1852                         case DOWNARROWKEY:
1853                                 if(data->searchbox) {
1854                                         ui_searchbox_event(C, data->searchbox, but, event);
1855                                         break;
1856                                 }
1857                                 /* pass on purposedly */
1858                         case ENDKEY:
1859                                 ui_textedit_move_end(but, data, 1, event->shift);
1860                                 retval= WM_UI_HANDLER_BREAK;
1861                                 break;
1862                         case UPARROWKEY:
1863                                 if(data->searchbox) {
1864                                         ui_searchbox_event(C, data->searchbox, but, event);
1865                                         break;
1866                                 }
1867                                 /* pass on purposedly */
1868                         case HOMEKEY:
1869                                 ui_textedit_move_end(but, data, 0, event->shift);
1870                                 retval= WM_UI_HANDLER_BREAK;
1871                                 break;
1872                         case PADENTER:
1873                         case RETKEY:
1874                                 button_activate_state(C, but, BUTTON_STATE_EXIT);
1875                                 retval= WM_UI_HANDLER_BREAK;
1876                                 break;
1877                         case DELKEY:
1878                                 changed= ui_textedit_delete(but, data, 1, 0);
1879                                 retval= WM_UI_HANDLER_BREAK;
1880                                 break;
1881
1882                         case BACKSPACEKEY:
1883                                 changed= ui_textedit_delete(but, data, 0, event->shift);
1884                                 retval= WM_UI_HANDLER_BREAK;
1885                                 break;
1886
1887                         case TABKEY:
1888                                 /* there is a key conflict here, we can't tab with autocomplete */
1889                                 if(but->autocomplete_func || data->searchbox) {
1890                                         changed= ui_textedit_autocomplete(C, but, data);
1891                                         update= 1; /* do live update for tab key */
1892                                 }
1893                                 /* the hotkey here is not well defined, was G.qual so we check all */
1894                                 else if(event->shift || event->ctrl || event->alt || event->oskey) {
1895                                         ui_textedit_prev_but(block, but, data);
1896                                         button_activate_state(C, but, BUTTON_STATE_EXIT);
1897                                 }
1898                                 else {
1899                                         ui_textedit_next_but(block, but, data);
1900                                         button_activate_state(C, but, BUTTON_STATE_EXIT);
1901                                 }
1902                                 retval= WM_UI_HANDLER_BREAK;
1903                                 break;
1904                 }
1905
1906                 if(event->ascii && (retval == WM_UI_HANDLER_CONTINUE)) {
1907                         char ascii = event->ascii;
1908
1909                         /* exception that's useful for number buttons, some keyboard
1910                            numpads have a comma instead of a period */
1911                         if(ELEM3(but->type, NUM, NUMABS, NUMSLI))
1912                                 if(event->type == PADPERIOD && ascii == ',')
1913                                         ascii = '.';
1914
1915                         changed= ui_textedit_type_ascii(but, data, ascii);
1916                         retval= WM_UI_HANDLER_BREAK;
1917
1918                 }
1919                 /* textbutton with magnifier icon: do live update for search button */
1920                 if(but->icon==ICON_VIEWZOOM)
1921                         update= 1;
1922         }
1923
1924         if(changed) {
1925                 /* only update when typing for TAB key */
1926                 if(update && data->interactive) ui_apply_button(C, block, but, data, 1);
1927                 else ui_check_but(but);
1928                 but->changed= TRUE;
1929
1930                 if(data->searchbox)
1931                         ui_searchbox_update(C, data->searchbox, but, 1); /* 1 = reset */
1932         }
1933
1934         if(changed || (retval == WM_UI_HANDLER_BREAK))
1935                 ED_region_tag_redraw(data->region);
1936 }
1937
1938 static void ui_do_but_textedit_select(bContext *C, uiBlock *block, uiBut *but, uiHandleButtonData *data, wmEvent *event)
1939 {
1940         int mx, my, retval= WM_UI_HANDLER_CONTINUE;
1941
1942         switch(event->type) {
1943                 case MOUSEMOVE: {
1944                         mx= event->x;
1945                         my= event->y;
1946                         ui_window_to_block(data->region, block, &mx, &my);
1947
1948                         ui_textedit_set_cursor_select(but, data, mx);
1949                         retval= WM_UI_HANDLER_BREAK;
1950                         break;
1951                 }
1952                 case LEFTMOUSE:
1953                         if(event->val == KM_RELEASE)
1954                                 button_activate_state(C, but, BUTTON_STATE_TEXT_EDITING);
1955                         retval= WM_UI_HANDLER_BREAK;
1956                         break;
1957         }
1958
1959         if(retval == WM_UI_HANDLER_BREAK) {
1960                 ui_check_but(but);
1961                 ED_region_tag_redraw(data->region);
1962         }
1963 }
1964
1965 /* ************* number editing for various types ************* */
1966
1967 static void ui_numedit_begin(uiBut *but, uiHandleButtonData *data)
1968 {
1969         float softrange, softmin, softmax;
1970
1971         if(but->type == BUT_CURVE) {
1972                 but->editcumap= (CurveMapping*)but->poin;
1973         }
1974         else if(but->type == BUT_COLORBAND) {
1975                 data->coba= (ColorBand*)but->poin;
1976                 but->editcoba= data->coba;
1977         }
1978         else if(ELEM3(but->type, BUT_NORMAL, HSVCUBE, HSVCIRCLE)) {
1979                 ui_get_but_vectorf(but, data->origvec);
1980                 VECCOPY(data->vec, data->origvec);
1981                 but->editvec= data->vec;
1982         }
1983         else {
1984                 data->startvalue= ui_get_but_val(but);
1985                 data->origvalue= data->startvalue;
1986                 data->value= data->origvalue;
1987                 but->editval= &data->value;
1988
1989                 softmin= but->softmin;
1990                 softmax= but->softmax;
1991                 softrange= softmax - softmin;
1992
1993                 data->dragfstart= (softrange == 0.0f)? 0.0f: ((float)data->value - softmin)/softrange;
1994                 data->dragf= data->dragfstart;
1995         }
1996
1997         data->dragchange= 0;
1998         data->draglock= 1;
1999 }
2000
2001 static void ui_numedit_end(uiBut *but, uiHandleButtonData *data)
2002 {
2003         but->editval= NULL;
2004         but->editvec= NULL;
2005         but->editcoba= NULL;
2006         but->editcumap= NULL;
2007
2008         data->dragstartx= 0;
2009         data->draglastx= 0;
2010         data->dragchange= 0;
2011         data->dragcbd= NULL;
2012         data->dragsel= 0;
2013 }
2014
2015 static void ui_numedit_apply(bContext *C, uiBlock *block, uiBut *but, uiHandleButtonData *data)
2016 {
2017         if(data->interactive) ui_apply_button(C, block, but, data, 1);
2018         else ui_check_but(but);
2019
2020         ED_region_tag_redraw(data->region);
2021 }
2022
2023 /* ****************** menu opening for various types **************** */
2024
2025 static void ui_blockopen_begin(bContext *C, uiBut *but, uiHandleButtonData *data)
2026 {
2027         uiBlockCreateFunc func= NULL;
2028         uiBlockHandleCreateFunc handlefunc= NULL;
2029         uiMenuCreateFunc menufunc= NULL;
2030         char *menustr= NULL;
2031         void *arg= NULL;
2032
2033         switch(but->type) {
2034                 case BLOCK:
2035                 case PULLDOWN:
2036                         if(but->menu_create_func) {
2037                                 menufunc= but->menu_create_func;
2038                                 arg= but->poin;
2039                         }
2040                         else {
2041                                 func= but->block_create_func;
2042                                 arg= but->poin?but->poin:but->func_argN;
2043                         }
2044                         break;
2045                 case MENU:
2046                         if(but->menu_create_func) {
2047                                 menufunc= but->menu_create_func;
2048                                 arg= but->poin;
2049                         }
2050                         else {
2051                                 data->origvalue= ui_get_but_val(but);
2052                                 data->value= data->origvalue;
2053                                 but->editval= &data->value;
2054
2055                                 menustr= but->str;
2056                         }
2057                         break;
2058                 case ICONROW:
2059                         menufunc= ui_block_func_ICONROW;
2060                         arg= but;
2061                         break;
2062                 case ICONTEXTROW:
2063                         menufunc= ui_block_func_ICONTEXTROW;
2064                         arg= but;
2065                         break;
2066                 case COL:
2067                         ui_get_but_vectorf(but, data->origvec);
2068                         VECCOPY(data->vec, data->origvec);
2069                         but->editvec= data->vec;
2070
2071                         handlefunc= ui_block_func_COL;
2072                         arg= but;
2073                         break;
2074         }
2075
2076         if(func || handlefunc) {
2077                 data->menu= ui_popup_block_create(C, data->region, but, func, handlefunc, arg);
2078                 if(but->block->handle)
2079                         data->menu->popup= but->block->handle->popup;
2080         }
2081         else if(menufunc || menustr) {
2082                 data->menu= ui_popup_menu_create(C, data->region, but, menufunc, arg, menustr);
2083                 if(but->block->handle)
2084                         data->menu->popup= but->block->handle->popup;
2085         }
2086
2087         /* this makes adjacent blocks auto open from now on */
2088         //if(but->block->auto_open==0) but->block->auto_open= 1;
2089 }
2090
2091 static void ui_blockopen_end(bContext *C, uiBut *but, uiHandleButtonData *data)
2092 {
2093         if(but) {
2094                 but->editval= NULL;
2095                 but->editvec= NULL;
2096
2097                 but->block->auto_open_last= PIL_check_seconds_timer();
2098         }
2099
2100         if(data->menu) {
2101                 ui_popup_block_free(C, data->menu);
2102                 data->menu= NULL;
2103         }
2104 }
2105
2106 /* ***************** events for different button types *************** */
2107
2108 static int ui_do_but_BUT(bContext *C, uiBut *but, uiHandleButtonData *data, wmEvent *event)
2109 {
2110         if(data->state == BUTTON_STATE_HIGHLIGHT) {
2111                 if(event->type == LEFTMOUSE && event->val==KM_PRESS) {
2112                         button_activate_state(C, but, BUTTON_STATE_WAIT_RELEASE);
2113                         return WM_UI_HANDLER_BREAK;
2114                 }
2115                 else if(event->type == LEFTMOUSE && but->block->handle) {
2116                         button_activate_state(C, but, BUTTON_STATE_EXIT);
2117                         return WM_UI_HANDLER_BREAK;
2118                 }
2119                 else if(ELEM(event->type, PADENTER, RETKEY) && event->val==KM_PRESS) {
2120                         button_activate_state(C, but, BUTTON_STATE_WAIT_FLASH);
2121                         return WM_UI_HANDLER_BREAK;
2122                 }
2123         }
2124         else if(data->state == BUTTON_STATE_WAIT_RELEASE) {
2125                 if(event->type == LEFTMOUSE && event->val!=KM_PRESS) {
2126                         if(!(but->flag & UI_SELECT))
2127                                 data->cancel= 1;
2128                         button_activate_state(C, but, BUTTON_STATE_EXIT);
2129                         return WM_UI_HANDLER_BREAK;
2130                 }
2131         }
2132
2133         return WM_UI_HANDLER_CONTINUE;
2134 }
2135
2136 static int ui_do_but_HOTKEYEVT(bContext *C, uiBut *but, uiHandleButtonData *data, wmEvent *event)
2137 {
2138         if(data->state == BUTTON_STATE_HIGHLIGHT) {
2139                 if(ELEM3(event->type, LEFTMOUSE, PADENTER, RETKEY) && event->val==KM_PRESS) {
2140                         but->drawstr[0]= 0;
2141                         but->modifier_key= 0;
2142                         button_activate_state(C, but, BUTTON_STATE_WAIT_KEY_EVENT);
2143                         return WM_UI_HANDLER_BREAK;
2144                 }
2145         }
2146         else if(data->state == BUTTON_STATE_WAIT_KEY_EVENT) {
2147
2148                 if(event->type == MOUSEMOVE)
2149                         return WM_UI_HANDLER_CONTINUE;
2150
2151                 if(event->type == LEFTMOUSE && event->val==KM_PRESS) {
2152                         /* only cancel if click outside the button */
2153                         if(ui_mouse_inside_button(but->active->region, but, event->x, event->y) == 0) {
2154                                 /* data->cancel doesnt work, this button opens immediate */
2155                                 if(but->flag & UI_BUT_IMMEDIATE)
2156                                         ui_set_but_val(but, 0);
2157                                 else
2158                                         data->cancel= 1;
2159                                 button_activate_state(C, but, BUTTON_STATE_EXIT);
2160                                 return WM_UI_HANDLER_BREAK;
2161                         }
2162                 }
2163
2164                 /* always set */
2165                 but->modifier_key = 0;
2166                 if(event->shift)
2167                         but->modifier_key |= KM_SHIFT;
2168                 if(event->alt)
2169                         but->modifier_key |= KM_ALT;
2170                 if(event->ctrl)
2171                         but->modifier_key |= KM_CTRL;
2172                 if(event->oskey)
2173                         but->modifier_key |= KM_OSKEY;
2174
2175                 ui_check_but(but);
2176                 ED_region_tag_redraw(data->region);
2177
2178                 if(event->val==KM_PRESS) {
2179                         if(ISHOTKEY(event->type)) {
2180
2181                                 if(WM_key_event_string(event->type)[0])
2182                                         ui_set_but_val(but, event->type);
2183                                 else
2184                                         data->cancel= 1;
2185
2186                                 button_activate_state(C, but, BUTTON_STATE_EXIT);
2187                                 return WM_UI_HANDLER_BREAK;
2188                         }
2189                         else if(event->type == ESCKEY) {
2190                                 data->cancel= 1;
2191                                 data->escapecancel= 1;
2192                                 button_activate_state(C, but, BUTTON_STATE_EXIT);
2193                         }
2194
2195                 }
2196         }
2197
2198         return WM_UI_HANDLER_CONTINUE;
2199 }
2200
2201 static int ui_do_but_KEYEVT(bContext *C, uiBut *but, uiHandleButtonData *data, wmEvent *event)
2202 {
2203         if(data->state == BUTTON_STATE_HIGHLIGHT) {
2204                 if(ELEM3(event->type, LEFTMOUSE, PADENTER, RETKEY) && event->val==KM_PRESS) {
2205                         button_activate_state(C, but, BUTTON_STATE_WAIT_KEY_EVENT);
2206                         return WM_UI_HANDLER_BREAK;
2207                 }
2208         }
2209         else if(data->state == BUTTON_STATE_WAIT_KEY_EVENT) {
2210                 if(event->type == MOUSEMOVE)
2211                         return WM_UI_HANDLER_CONTINUE;
2212
2213                 if(event->val==KM_PRESS) {
2214                         if(WM_key_event_string(event->type)[0])
2215                                 ui_set_but_val(but, event->type);
2216                         else
2217                                 data->cancel= 1;
2218
2219                         button_activate_state(C, but, BUTTON_STATE_EXIT);
2220                 }
2221         }
2222
2223         return WM_UI_HANDLER_CONTINUE;
2224 }
2225
2226 static int ui_do_but_TEX(bContext *C, uiBlock *block, uiBut *but, uiHandleButtonData *data, wmEvent *event)
2227 {
2228         if(data->state == BUTTON_STATE_HIGHLIGHT) {
2229                 if(ELEM(event->type, LEFTMOUSE, EVT_BUT_OPEN) && event->val==KM_PRESS) {
2230                         if(but->dt == UI_EMBOSSN && !event->ctrl);
2231                         else {
2232                                 button_activate_state(C, but, BUTTON_STATE_TEXT_EDITING);
2233                                 return WM_UI_HANDLER_BREAK;
2234                         }
2235                 }
2236         }
2237         else if(data->state == BUTTON_STATE_TEXT_EDITING) {
2238                 ui_do_but_textedit(C, block, but, data, event);
2239                 return WM_UI_HANDLER_BREAK;
2240         }
2241         else if(data->state == BUTTON_STATE_TEXT_SELECTING) {
2242                 ui_do_but_textedit_select(C, block, but, data, event);
2243                 return WM_UI_HANDLER_BREAK;
2244         }
2245
2246         return WM_UI_HANDLER_CONTINUE;
2247 }
2248
2249 static int ui_do_but_TOG(bContext *C, uiBut *but, uiHandleButtonData *data, wmEvent *event)
2250 {
2251         if(data->state == BUTTON_STATE_HIGHLIGHT) {
2252                 if(ELEM3(event->type, LEFTMOUSE, PADENTER, RETKEY) && event->val==KM_PRESS) {
2253                         data->togdual= event->ctrl;
2254                         data->togonly= !event->shift;
2255                         button_activate_state(C, but, BUTTON_STATE_EXIT);
2256                         return WM_UI_HANDLER_BREAK;
2257                 }
2258         }
2259         return WM_UI_HANDLER_CONTINUE;
2260 }
2261
2262 static int ui_do_but_EXIT(bContext *C, uiBut *but, uiHandleButtonData *data, wmEvent *event)
2263 {
2264
2265         if(data->state == BUTTON_STATE_HIGHLIGHT) {
2266
2267                 /* first handle click on icondrag type button */
2268                 if(event->type==LEFTMOUSE && but->dragpoin) {
2269                         if(ui_but_mouse_inside_icon(but, data->region, event)) {
2270
2271                                 /* tell the button to wait and keep checking further events to
2272                                  * see if it should start dragging */
2273                                 button_activate_state(C, but, BUTTON_STATE_WAIT_DRAG);
2274                                 data->dragstartx= event->x;
2275                                 data->dragstarty= event->y;
2276                                 return WM_UI_HANDLER_CONTINUE;
2277                         }
2278                 }
2279
2280                 if(ELEM3(event->type, LEFTMOUSE, PADENTER, RETKEY) && event->val==KM_PRESS) {
2281                         int ret = WM_UI_HANDLER_BREAK;
2282                         /* XXX (a bit ugly) Special case handling for filebrowser drag button */
2283                         if(but->dragpoin && but->imb && ui_but_mouse_inside_icon(but, data->region, event)) {
2284                                 ret = WM_UI_HANDLER_CONTINUE;
2285                         }
2286                         button_activate_state(C, but, BUTTON_STATE_EXIT);
2287                         return ret;
2288                 }
2289         }
2290         else if(data->state == BUTTON_STATE_WAIT_DRAG) {
2291
2292                 /* this function also ends state */
2293                 if(ui_but_start_drag(C, but, data, event)) {
2294                         return WM_UI_HANDLER_BREAK;
2295                 }
2296
2297                 /* If the mouse has been pressed and released, getting to
2298                  * this point without triggering a drag, then clear the
2299                  * drag state for this button and continue to pass on the event */
2300                 if(event->type==LEFTMOUSE && event->val==KM_RELEASE) {
2301                         button_activate_state(C, but, BUTTON_STATE_EXIT);
2302                         return WM_UI_HANDLER_CONTINUE;
2303                 }
2304
2305                 /* while waiting for a drag to be triggered, always block
2306                  * other events from getting handled */
2307                 return WM_UI_HANDLER_BREAK;
2308         }
2309
2310         return WM_UI_HANDLER_CONTINUE;
2311 }
2312
2313 /* var names match ui_numedit_but_NUM */
2314 static float ui_numedit_apply_snapf(uiBut *but, float tempf, float softmin, float softmax, float softrange, int snap)
2315 {
2316         if(tempf==softmin || tempf==softmax || snap==0) {
2317                 /* pass */
2318         }
2319         else {
2320                 float fac= 1.0f;
2321
2322                 if(ui_is_but_unit(but)) {
2323                         UnitSettings *unit= but->block->unit;
2324                         int unit_type= uiButGetUnitType(but)>>16;
2325
2326                         if(bUnit_IsValid(unit->system, unit_type)) {
2327                                 fac= (float)bUnit_BaseScalar(unit->system, unit_type);
2328                                 if(ELEM3(unit_type, B_UNIT_LENGTH, B_UNIT_AREA, B_UNIT_VOLUME)) {
2329                                         fac /= unit->scale_length;
2330                                 }
2331                         }
2332                 }
2333
2334                 if(fac != 1.0f) {
2335                         /* snap in unit-space */
2336                         tempf /= fac;
2337                         /* softmin /= fac; */ /* UNUSED */
2338                         /* softmax /= fac; */ /* UNUSED */
2339                         softrange /= fac;
2340                 }
2341
2342                 if(snap==1) {
2343                         if(softrange < 2.10f) tempf= 0.1f*floorf(10.0f*tempf);
2344                         else if(softrange < 21.0f) tempf= floorf(tempf);
2345                         else tempf= 10.0f*floorf(tempf/10.0f);
2346                 }
2347                 else if(snap==2) {
2348                         if(softrange < 2.10f) tempf= 0.01f*floorf(100.0f*tempf);
2349                         else if(softrange < 21.0f) tempf= 0.1f*floorf(10.0f*tempf);
2350                         else tempf= floor(tempf);
2351                 }
2352
2353                 if(fac != 1.0f)
2354                         tempf *= fac;
2355         }
2356
2357         return tempf;
2358 }
2359
2360 static float ui_numedit_apply_snap(int temp, float softmin, float softmax, int snap)
2361 {
2362         if(temp==softmin || temp==softmax)
2363                 return temp;
2364
2365         switch(snap) {
2366         case 0:
2367                 break;
2368         case 1:
2369                 temp= 10*(temp/10);
2370                 break;
2371         case 2:
2372                 temp= 100*(temp/100);
2373                 break;
2374         }
2375
2376         return temp;
2377 }
2378
2379 static int ui_numedit_but_NUM(uiBut *but, uiHandleButtonData *data, float fac, int snap, int mx)
2380 {
2381         float deler, tempf, softmin, softmax, softrange;
2382         int lvalue, temp, changed= 0;
2383
2384         if(mx == data->draglastx)
2385                 return changed;
2386
2387         /* drag-lock - prevent unwanted scroll adjustments */
2388         /* change value (now 3) to adjust threshold in pixels */
2389         if(data->draglock) {
2390                 if(abs(mx-data->dragstartx) <= 3)
2391                         return changed;
2392
2393                 data->draglock= 0;
2394                 data->dragstartx= mx;  /* ignore mouse movement within drag-lock */
2395         }
2396
2397         softmin= but->softmin;
2398         softmax= but->softmax;
2399         softrange= softmax - softmin;
2400
2401         if(ui_is_a_warp_but(but)) {
2402                 /* Mouse location isn't screen clamped to the screen so use a linear mapping
2403                  * 2px == 1-int, or 1px == 1-ClickStep */
2404                 if(ui_is_but_float(but)) {
2405                         fac *= 0.01f*but->a1;
2406                         tempf = (float)data->startvalue + ((float)(mx - data->dragstartx) * fac);
2407                         tempf= ui_numedit_apply_snapf(but, tempf, softmin, softmax, softrange, snap);
2408
2409 #if 1           /* fake moving the click start, nicer for dragging back after passing the limit */
2410                         if(tempf < softmin) {
2411                                 data->dragstartx -= (softmin-tempf) / fac;
2412                                 tempf= softmin;
2413                         } else if (tempf > softmax) {
2414                                 data->dragstartx += (tempf-softmax) / fac;
2415                                 tempf= softmax;
2416                         }
2417 #else
2418                         CLAMP(tempf, softmin, softmax);
2419 #endif
2420
2421                         if(tempf != (float)data->value) {
2422                                 data->dragchange= 1;
2423                                 data->value= tempf;
2424                                 changed= 1;
2425                         }
2426                 }
2427                 else {
2428                         if(softrange > 256)             fac= 1.0;               /* 1px == 1 */
2429                         else if(softrange > 32) fac= 1.0/2.0;   /* 2px == 1 */
2430                         else                                    fac= 1.0/16.0;  /* 16px == 1? */
2431
2432                         temp= data->startvalue + (((double)mx - data->dragstartx) * (double)fac);
2433                         temp= ui_numedit_apply_snap(temp, softmin, softmax, snap);
2434
2435 #if 1           /* fake moving the click start, nicer for dragging back after passing the limit */
2436                         if(temp < softmin) {
2437                                 data->dragstartx -= (softmin-temp) / fac;
2438                                 temp= softmin;
2439                         } else if (temp > softmax) {
2440                                 data->dragstartx += (temp-softmax) / fac;
2441                                 temp= softmax;
2442                         }
2443 #else
2444                         CLAMP(temp, softmin, softmax);
2445 #endif
2446
2447                         if(temp != data->value) {
2448                                 data->dragchange= 1;
2449                                 data->value= temp;
2450                                 changed= 1;
2451                         }
2452                 }
2453
2454                 data->draglastx= mx;
2455         }
2456         else {
2457                 /* Use a non-linear mapping of the mouse drag especially for large floats (normal behavior) */
2458                 deler= 500;
2459                 if(!ui_is_but_float(but)) {
2460                         /* prevent large ranges from getting too out of control */
2461                         if (softrange > 600) deler = powf(softrange, 0.75);
2462
2463                         if (softrange < 100) deler= 200.0;
2464                         if (softrange < 25) deler= 50.0;
2465                 }
2466                 deler /= fac;
2467
2468                 if(softrange > 11) {
2469                         /* non linear change in mouse input- good for high precicsion */
2470                         data->dragf+= (((float)(mx-data->draglastx))/deler) * (fabsf(data->dragstartx-mx)*0.002f);
2471                 } else if (softrange > 129) { /* only scale large int buttons */
2472                         /* non linear change in mouse input- good for high precicsionm ints need less fine tuning */
2473                         data->dragf+= (((float)(mx-data->draglastx))/deler) * (fabsf(data->dragstartx-mx)*0.004f);
2474                 } else {
2475                         /*no scaling */
2476                         data->dragf+= ((float)(mx-data->draglastx))/deler ;
2477                 }
2478
2479                 CLAMP(data->dragf, 0.0f, 1.0f);
2480                 data->draglastx= mx;
2481                 tempf= (softmin + data->dragf*softrange);
2482
2483
2484                 if(!ui_is_but_float(but)) {
2485                         temp= floorf(tempf + 0.5f);
2486
2487                         temp= ui_numedit_apply_snap(temp, softmin, softmax, snap);
2488
2489                         CLAMP(temp, softmin, softmax);
2490                         lvalue= (int)data->value;
2491
2492                         if(temp != lvalue) {
2493                                 data->dragchange= 1;
2494                                 data->value= (double)temp;
2495                                 changed= 1;
2496                         }
2497                 }
2498                 else {
2499                         temp= 0;
2500                         tempf= ui_numedit_apply_snapf(but, tempf, softmin, softmax, softrange, snap);
2501
2502                         CLAMP(tempf, softmin, softmax);
2503
2504                         if(tempf != (float)data->value) {
2505                                 data->dragchange= 1;
2506                                 data->value= tempf;
2507                                 changed= 1;
2508                         }
2509                 }
2510         }
2511
2512
2513         return changed;
2514 }
2515
2516 static int ui_do_but_NUM(bContext *C, uiBlock *block, uiBut *but, uiHandleButtonData *data, wmEvent *event)
2517 {
2518         int mx, my;     /* mouse location scaled to fit the UI */
2519         int screen_mx, screen_my; /* mouse location kept at screen pixel coords */
2520         int click= 0;
2521         int retval= WM_UI_HANDLER_CONTINUE;
2522
2523         mx= screen_mx= event->x;
2524         my= screen_my= event->y;
2525
2526         ui_window_to_block(data->region, block, &mx, &my);
2527
2528         if(data->state == BUTTON_STATE_HIGHLIGHT) {
2529                 /* XXX hardcoded keymap check.... */
2530                 if(event->type == WHEELDOWNMOUSE && event->alt) {
2531                         mx= but->x1;
2532                         click= 1;
2533                 }
2534                 else if(event->type == WHEELUPMOUSE && event->alt) {
2535                         mx= but->x2;
2536                         click= 1;
2537                 }
2538                 else if(event->val==KM_PRESS) {
2539                         if(ELEM3(event->type, LEFTMOUSE, PADENTER, RETKEY) && event->ctrl) {
2540                                 button_activate_state(C, but, BUTTON_STATE_TEXT_EDITING);
2541                                 retval= WM_UI_HANDLER_BREAK;
2542                         }
2543                         else if(event->type == LEFTMOUSE) {
2544                                 data->dragstartx= data->draglastx= ui_is_a_warp_but(but) ? screen_mx:mx;
2545                                 button_activate_state(C, but, BUTTON_STATE_NUM_EDITING);
2546                                 retval= WM_UI_HANDLER_BREAK;
2547                         }
2548                         else if(ELEM(event->type, PADENTER, RETKEY) && event->val==KM_PRESS)
2549                                 click= 1;
2550                         else if (event->type == MINUSKEY && event->val==KM_PRESS) {
2551                                 button_activate_state(C, but, BUTTON_STATE_NUM_EDITING);
2552                                 data->value = -data->value;
2553                                 button_activate_state(C, but, BUTTON_STATE_EXIT);
2554                                 retval= WM_UI_HANDLER_BREAK;
2555                         }
2556                 }
2557
2558         }
2559         else if(data->state == BUTTON_STATE_NUM_EDITING) {
2560                 if(event->type == ESCKEY) {
2561                         data->cancel= 1;
2562                         data->escapecancel= 1;
2563                         button_activate_state(C, but, BUTTON_STATE_EXIT);
2564                 }
2565                 else if(event->type == LEFTMOUSE && event->val!=KM_PRESS) {
2566                         if(data->dragchange)
2567                                 button_activate_state(C, but, BUTTON_STATE_EXIT);
2568                         else
2569                                 click= 1;
2570                 }
2571                 else if(event->type == MOUSEMOVE) {
2572                         float fac;
2573                         int snap;
2574
2575                         fac= 1.0f;
2576                         if(event->shift) fac /= 10.0f;
2577                         if(event->alt) fac /= 20.0f;
2578
2579                         snap= (event->ctrl)? (event->shift)? 2: 1: 0;
2580
2581                         if(ui_numedit_but_NUM(but, data, fac, snap, (ui_is_a_warp_but(but) ? screen_mx:mx)))
2582                                 ui_numedit_apply(C, block, but, data);
2583                 }
2584                 retval= WM_UI_HANDLER_BREAK;
2585         }
2586         else if(data->state == BUTTON_STATE_TEXT_EDITING) {
2587                 ui_do_but_textedit(C, block, but, data, event);
2588                 retval= WM_UI_HANDLER_BREAK;
2589         }
2590         else if(data->state == BUTTON_STATE_TEXT_SELECTING) {
2591                 ui_do_but_textedit_select(C, block, but, data, event);
2592                 retval= WM_UI_HANDLER_BREAK;
2593         }
2594
2595         if(click) {
2596                 /* we can click on the side arrows to increment/decrement,
2597                  * or click inside to edit the value directly */
2598                 float tempf, softmin, softmax;
2599                 int temp;
2600
2601                 softmin= but->softmin;
2602                 softmax= but->softmax;
2603
2604                 if(!ui_is_but_float(but)) {
2605                         if(mx < (but->x1 + (but->x2 - but->x1)/3 - 3)) {
2606                                 button_activate_state(C, but, BUTTON_STATE_NUM_EDITING);
2607
2608                                 temp= (int)data->value - 1;
2609                                 if(temp>=softmin && temp<=softmax)
2610                                         data->value= (double)temp;
2611                                 else
2612                                         data->cancel= 1;
2613
2614                                 button_activate_state(C, but, BUTTON_STATE_EXIT);
2615                         }
2616                         else if(mx > (but->x1 + (2*(but->x2 - but->x1)/3) + 3)) {
2617                                 button_activate_state(C, but, BUTTON_STATE_NUM_EDITING);
2618
2619                                 temp= (int)data->value + 1;
2620                                 if(temp>=softmin && temp<=softmax)
2621                                         data->value= (double)temp;
2622                                 else
2623                                         data->cancel= 1;
2624
2625                                 button_activate_state(C, but, BUTTON_STATE_EXIT);
2626                         }
2627                         else
2628                                 button_activate_state(C, but, BUTTON_STATE_TEXT_EDITING);
2629                 }
2630                 else {
2631                         if(mx < (but->x1 + (but->x2 - but->x1)/3 - 3)) {
2632                                 button_activate_state(C, but, BUTTON_STATE_NUM_EDITING);
2633
2634                                 tempf= (float)data->value - 0.01f * but->a1;
2635                                 if (tempf < softmin) tempf = softmin;
2636                                 data->value= tempf;
2637
2638                                 button_activate_state(C, but, BUTTON_STATE_EXIT);
2639                         }
2640                         else if(mx > but->x1 + (2*((but->x2 - but->x1)/3) + 3)) {
2641                                 button_activate_state(C, but, BUTTON_STATE_NUM_EDITING);
2642
2643                                 tempf= (float)data->value + 0.01f * but->a1;
2644                                 if (tempf > softmax) tempf = softmax;
2645                                 data->value= tempf;
2646
2647                                 button_activate_state(C, but, BUTTON_STATE_EXIT);
2648                         }
2649                         else
2650                                 button_activate_state(C, but, BUTTON_STATE_TEXT_EDITING);
2651                 }
2652
2653                 retval= WM_UI_HANDLER_BREAK;
2654         }
2655
2656         return retval;
2657 }
2658
2659 static int ui_numedit_but_SLI(uiBut *but, uiHandleButtonData *data, int shift, int ctrl, int mx)
2660 {
2661         float deler, f, tempf, softmin, softmax, softrange;
2662         int temp, lvalue, changed= 0;
2663
2664         softmin= but->softmin;
2665         softmax= but->softmax;
2666         softrange= softmax - softmin;
2667
2668         if(but->type==NUMSLI) deler= ((but->x2-but->x1) - 5.0f*but->aspect);
2669         else if(but->type==HSVSLI) deler= ((but->x2-but->x1)/2.0f - 5.0f*but->aspect);
2670         else if(but->type==SCROLL) {
2671                 int horizontal= (but->x2 - but->x1 > but->y2 - but->y1);
2672                 float size= (horizontal)? (but->x2-but->x1): -(but->y2-but->y1);
2673                 deler= size*(but->softmax - but->softmin)/(but->softmax - but->softmin + but->a1);
2674         }
2675         else deler= (but->x2-but->x1- 5.0f*but->aspect);
2676
2677         f= (float)(mx-data->dragstartx)/deler + data->dragfstart;
2678
2679         if(shift)
2680                 f= (f-data->dragfstart)/10.0f + data->dragfstart;
2681
2682         CLAMP(f, 0.0f, 1.0f);
2683         tempf= softmin + f*softrange;
2684         temp= floorf(tempf+0.5f);
2685
2686         if(ctrl) {
2687                 if(tempf==softmin || tempf==softmax);
2688                 else if(ui_is_but_float(but)) {
2689
2690                         if(shift) {
2691                                 if(tempf==softmin || tempf==softmax);
2692                                 else if(softmax-softmin < 2.10f) tempf= 0.01f * floorf(100.0f*tempf);
2693                                 else if(softmax-softmin < 21.0f) tempf= 0.1f * floorf(10.0f*tempf);
2694                                 else tempf= floorf(tempf);
2695                         }
2696                         else {
2697                                 if(softmax-softmin < 2.10f) tempf= 0.1f * floorf(10.0f*tempf);
2698                                 else if(softmax-softmin < 21.0f) tempf= floorf(tempf);
2699                                 else tempf= 10.0f*floorf(tempf/10.0f);
2700                         }
2701                 }
2702                 else {
2703                         temp= 10*(temp/10);
2704                         tempf= temp;
2705                 }
2706         }
2707
2708         if(!ui_is_but_float(but)) {
2709                 lvalue= floor(data->value+0.5);
2710
2711                 CLAMP(temp, softmin, softmax);
2712
2713                 if(temp != lvalue) {
2714                         data->value= temp;
2715                         data->dragchange= 1;
2716                         changed= 1;
2717                 }
2718         }
2719         else {
2720                 CLAMP(tempf, softmin, softmax);
2721
2722                 if(tempf != (float)data->value) {
2723                         data->value= tempf;
2724                         data->dragchange= 1;
2725                         changed= 1;
2726                 }
2727         }
2728
2729         return changed;
2730 }
2731
2732 static int ui_do_but_SLI(bContext *C, uiBlock *block, uiBut *but, uiHandleButtonData *data, wmEvent *event)
2733 {
2734         int mx, my, click= 0;
2735         int retval= WM_UI_HANDLER_CONTINUE;
2736
2737         mx= event->x;
2738         my= event->y;
2739         ui_window_to_block(data->region, block, &mx, &my);
2740
2741         if(data->state == BUTTON_STATE_HIGHLIGHT) {
2742                 /* XXX hardcoded keymap check.... */
2743                 if(event->type == WHEELDOWNMOUSE && event->alt) {
2744                         mx= but->x1;
2745                         click= 2;
2746                 }
2747                 else if(event->type == WHEELUPMOUSE && event->alt) {
2748                         mx= but->x2;
2749                         click= 2;
2750                 }
2751                 else if(event->val==KM_PRESS) {
2752                         if(ELEM3(event->type, LEFTMOUSE, PADENTER, RETKEY) && event->ctrl) {
2753                                 button_activate_state(C, but, BUTTON_STATE_TEXT_EDITING);
2754                                 retval= WM_UI_HANDLER_BREAK;
2755                         }
2756                         /* alt-click on sides to get "arrows" like in NUM buttons, and match wheel usage above */
2757                         else if(event->type == LEFTMOUSE && event->alt) {
2758                                 int halfpos = (but->x1 + but->x2) / 2;
2759                                 click = 2;
2760                                 if (mx < halfpos)
2761                                         mx = but->x1;
2762                                 else
2763                                         mx = but->x2;
2764                         }
2765                         else if(event->type == LEFTMOUSE) {
2766                                 data->dragstartx= mx;
2767                                 data->draglastx= mx;
2768                                 button_activate_state(C, but, BUTTON_STATE_NUM_EDITING);
2769                                 retval= WM_UI_HANDLER_BREAK;
2770                         }
2771                         else if(ELEM(event->type, PADENTER, RETKEY) && event->val==KM_PRESS)
2772                                 click= 1;
2773                         else if (event->type == MINUSKEY && event->val==KM_PRESS) {
2774                                 button_activate_state(C, but, BUTTON_STATE_NUM_EDITING);
2775                                 data->value = -data->value;
2776                                 button_activate_state(C, but, BUTTON_STATE_EXIT);
2777                                 retval= WM_UI_HANDLER_BREAK;
2778                         }
2779                 }
2780         }
2781         else if(data->state == BUTTON_STATE_NUM_EDITING) {
2782                 if(event->type == ESCKEY) {
2783                         data->cancel= 1;
2784                         data->escapecancel= 1;
2785                         button_activate_state(C, but, BUTTON_STATE_EXIT);
2786                 }
2787                 else if(event->type == LEFTMOUSE && event->val!=KM_PRESS) {
2788                         if(data->dragchange)
2789                                 button_activate_state(C, but, BUTTON_STATE_EXIT);
2790                         else
2791                                 click= 1;
2792                 }
2793                 else if(event->type == MOUSEMOVE) {
2794                         if(ui_numedit_but_SLI(but, data, event->shift, event->ctrl, mx))
2795                                 ui_numedit_apply(C, block, but, data);
2796                 }
2797                 retval= WM_UI_HANDLER_BREAK;
2798         }
2799         else if(data->state == BUTTON_STATE_TEXT_EDITING) {
2800                 ui_do_but_textedit(C, block, but, data, event);
2801                 retval= WM_UI_HANDLER_BREAK;
2802         }
2803         else if(data->state == BUTTON_STATE_TEXT_SELECTING) {
2804                 ui_do_but_textedit_select(C, block, but, data, event);
2805                 retval= WM_UI_HANDLER_BREAK;
2806         }
2807
2808         if(click) {
2809                 if (click==2) {
2810                         /* nudge slider to the left or right */
2811                         float f, tempf, softmin, softmax, softrange;
2812                         int temp;
2813
2814                         button_activate_state(C, but, BUTTON_STATE_NUM_EDITING);
2815
2816                         softmin= but->softmin;
2817                         softmax= but->softmax;
2818                         softrange= softmax - softmin;
2819
2820                         tempf= data->value;
2821                         temp= (int)data->value;
2822
2823 #if 0
2824                         if(but->type==SLI) {
2825                                 f= (float)(mx-but->x1)/(but->x2-but->x1); /* same as below */
2826                         }
2827                         else
2828 #endif
2829                         {
2830                                 f= (float)(mx- but->x1)/(but->x2-but->x1);
2831                         }
2832
2833                         f= softmin + f*softrange;
2834
2835                         if(!ui_is_but_float(but)) {
2836                                 if(f<temp) temp--;
2837                                 else temp++;
2838
2839                                 if(temp>=softmin && temp<=softmax)
2840                                         data->value= temp;
2841                                 else
2842                                         data->cancel= 1;
2843                         }
2844                         else {
2845                                 if(f<tempf) tempf -= 0.01f;
2846                                 else tempf += 0.01f;
2847
2848                                 if(tempf>=softmin && tempf<=softmax)
2849                                         data->value= tempf;
2850                                 else
2851                                         data->cancel= 1;
2852                         }
2853
2854                         button_activate_state(C, but, BUTTON_STATE_EXIT);
2855                         retval= WM_UI_HANDLER_BREAK;
2856                 }
2857                 else {
2858                         /* edit the value directly */
2859                         button_activate_state(C, but, BUTTON_STATE_TEXT_EDITING);
2860                         retval= WM_UI_HANDLER_BREAK;
2861                 }
2862         }
2863
2864         return retval;
2865 }
2866
2867 static int ui_do_but_SCROLL(bContext *C, uiBlock *block, uiBut *but, uiHandleButtonData *data, wmEvent *event)
2868 {
2869         int mx, my /*, click= 0 */;
2870         int retval= WM_UI_HANDLER_CONTINUE;
2871         int horizontal= (but->x2 - but->x1 > but->y2 - but->y1);
2872
2873         mx= event->x;
2874         my= event->y;
2875         ui_window_to_block(data->region, block, &mx, &my);
2876
2877         if(data->state == BUTTON_STATE_HIGHLIGHT) {
2878                 if(event->val==KM_PRESS) {
2879                         if(event->type == LEFTMOUSE) {
2880                                 if(horizontal) {
2881                                         data->dragstartx= mx;
2882                                         data->draglastx= mx;
2883                                 }
2884                                 else {
2885                                         data->dragstartx= my;
2886                                         data->draglastx= my;
2887                                 }
2888                                 button_activate_state(C, but, BUTTON_STATE_NUM_EDITING);
2889                                 retval= WM_UI_HANDLER_BREAK;
2890                         }
2891                         /* UNUSED - otherwise code is ok, add back if needed */
2892                         /* else if(ELEM(event->type, PADENTER, RETKEY) && event->val==KM_PRESS)
2893                                 click= 1;
2894                         */
2895                 }
2896         }
2897         else if(data->state == BUTTON_STATE_NUM_EDITING) {
2898                 if(event->type == ESCKEY) {
2899                         data->cancel= 1;
2900                         data->escapecancel= 1;
2901                         button_activate_state(C, but, BUTTON_STATE_EXIT);
2902                 }
2903                 else if(event->type == LEFTMOUSE && event->val!=KM_PRESS) {
2904                         button_activate_state(C, but, BUTTON_STATE_EXIT);
2905                 }
2906                 else if(event->type == MOUSEMOVE) {
2907                         if(ui_numedit_but_SLI(but, data, 0, 0, (horizontal)? mx: my))
2908                                 ui_numedit_apply(C, block, but, data);
2909                 }
2910
2911                 retval= WM_UI_HANDLER_BREAK;