source/blender/editors/interface/interface_handlers.c

   1 /**
   2  * ***** BEGIN GPL LICENSE BLOCK *****
   3  *
   4  * This program is free software; you can redistribute it and/or
   5  * modify it under the terms of the GNU General Public License
   6  * as published by the Free Software Foundation; either version 2
   7  * of the License, or (at your option) any later version.
   8  *
   9  * This program is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12  * GNU General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU General Public License
  15  * along with this program; if not, write to the Free Software Foundation,
  16  * Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
  17  *
  18  * The Original Code is Copyright (C) 2008 Blender Foundation.
  19  * All rights reserved.
  20  *
  21  * Contributor(s): Blender Foundation
  22  *
  23  * ***** END GPL LICENSE BLOCK *****
  24  */
  25
  26 #include <math.h>
  27 #include <stdlib.h>
  28 #include <string.h>
  29
  30 #include "MEM_guardedalloc.h"
  31
  32 #include "DNA_color_types.h"
  33 #include "DNA_object_types.h"
  34 #include "DNA_screen_types.h"
  35 #include "DNA_texture_types.h"
  36 #include "DNA_userdef_types.h"
  37 #include "DNA_windowmanager_types.h"
  38
  39 #include "BLI_arithb.h"
  40 #include "BLI_blenlib.h"
  41 #include "PIL_time.h"
  42
  43 #include "BKE_colortools.h"
  44 #include "BKE_global.h"
  45 #include "BKE_texture.h"
  46 #include "BKE_utildefines.h"
  47
  48 #include "ED_screen.h"
  49
  50 #include "UI_interface.h"
  51 #include "UI_text.h"
  52 #include "interface.h"
  53
  54 #include "WM_api.h"
  55 #include "WM_types.h"
  56
  57 /***************** structs and defines ****************/
  58
  59 #define BUTTON_TOOLTIP_DELAY            500
  60 #define BUTTON_FLASH_DELAY                      20
  61 #define BUTTON_AUTO_OPEN_THRESH         0.3
  62 #define BUTTON_MOUSE_TOWARDS_THRESH     1.0
  63
  64 typedef enum uiButtonActivateType {
  65         BUTTON_ACTIVATE_OVER,
  66         BUTTON_ACTIVATE,
  67         BUTTON_ACTIVATE_APPLY,
  68         BUTTON_ACTIVATE_TEXT_EDITING,
  69         BUTTON_ACTIVATE_OPEN
  70 } uiButtonActivateType;
  71
  72 typedef enum uiHandleButtonState {
  73         BUTTON_STATE_INIT,
  74         BUTTON_STATE_HIGHLIGHT,
  75         BUTTON_STATE_WAIT_FLASH,
  76         BUTTON_STATE_WAIT_RELEASE,
  77         BUTTON_STATE_WAIT_KEY_EVENT,
  78         BUTTON_STATE_NUM_EDITING,
  79         BUTTON_STATE_TEXT_EDITING,
  80         BUTTON_STATE_TEXT_SELECTING,
  81         BUTTON_STATE_MENU_OPEN,
  82         BUTTON_STATE_EXIT
  83 } uiHandleButtonState;
  84
  85 typedef struct uiHandleButtonData {
  86         wmWindow *window;
  87         ARegion *region;
  88
  89         int interactive;
  90
  91         /* overall state */
  92         uiHandleButtonState state;
  93         int cancel, retval;
  94         int applied, appliedinteractive;
  95         wmTimerHandle *flashtimer;
  96
  97         /* edited value */
  98         char *str, *origstr;
  99         double value, origvalue;
 100         float vec[3], origvec[3];
 101         int togdual, togonly;
 102         ColorBand *coba;
 103         CurveMapping *cumap;
 104
 105         /* tooltip */
 106         ARegion *tooltip;
 107         wmTimerHandle *tooltiptimer;
 108         wmTimerHandle *autoopentimer;
 109
 110         /* text selection/editing */
 111         int maxlen, selextend, selstartx;
 112
 113         /* number editing / dragging */
 114         int draglastx, draglasty;
 115         int dragstartx, dragstarty;
 116         int dragchange, draglock, dragsel;
 117         float dragf, dragfstart;
 118         CBData *dragcbd;
 119
 120         /* menu open */
 121         uiMenuBlockHandle *menu;
 122         int menuretval;
 123
 124         /* post activate */
 125         uiButtonActivateType posttype;
 126         uiBut *postbut;
 127 } uiHandleButtonData;
 128
 129 typedef struct uiAfterFunc {
 130         struct uiAfterFunc *next, *prev;
 131
 132         void (*func)(struct bContext*, void *, void *);
 133         void *func_arg1;
 134         void *func_arg2;
 135
 136         void (*handle_func)(struct bContext*, void *arg, int event);
 137         void *handle_func_arg;
 138         int retval;
 139
 140         void (*butm_func)(struct bContext*, void *arg, int event);
 141         void *butm_func_arg;
 142         int a2;
 143
 144         const char *opname;
 145         int opcontext;
 146 } uiAfterFunc;
 147
 148 static void button_activate_state(bContext *C, uiBut *but, uiHandleButtonState state);
 149 static int ui_handler_region_menu(bContext *C, wmEvent *event, void *userdata);
 150 static int ui_handler_popup(bContext *C, wmEvent *event, void *userdata);
 151 static void ui_handler_remove_popup(bContext *C, void *userdata);
 152
 153 /* ********************** button apply/revert ************************/
 154
 155 static ListBase UIAfterFuncs = {NULL, NULL};
 156
 157 static void ui_apply_but_func(bContext *C, uiBut *but)
 158 {
 159         uiAfterFunc *after;
 160         uiBlock *block= but->block;
 161
 162         /* these functions are postponed and only executed after all other
 163          * handling is done, i.e. menus are closed, in order to avoid conflicts
 164          * with these functions removing the buttons we are working with */
 165
 166         if(but->func || block->handle_func || (but->type == BUTM && block->butm_func)) {
 167                 after= MEM_callocN(sizeof(uiAfterFunc), "uiAfterFunc");
 168
 169                 after->func= but->func;
 170                 after->func_arg1= but->func_arg1;
 171                 after->func_arg2= but->func_arg2;
 172
 173                 after->handle_func= block->handle_func;
 174                 after->handle_func_arg= block->handle_func_arg;
 175                 after->retval= but->retval;
 176
 177                 if(but->type == BUTM) {
 178                         after->butm_func= block->butm_func;
 179                         after->butm_func_arg= block->butm_func_arg;
 180                         after->a2= but->a2;
 181                 }
 182
 183                 after->opname= but->opname;
 184                 after->opcontext= but->opcontext;
 185
 186                 BLI_addtail(&UIAfterFuncs, after);
 187         }
 188 }
 189
 190 static void ui_apply_but_funcs_after(bContext *C)
 191 {
 192         uiAfterFunc *after;
 193         ListBase funcs;
 194
 195         /* copy to avoid recursive calls */
 196         funcs= UIAfterFuncs;
 197         UIAfterFuncs.first= UIAfterFuncs.last= NULL;
 198
 199         for(after=funcs.first; after; after=after->next) {
 200                 if(after->func)
 201                         after->func(C, after->func_arg1, after->func_arg2);
 202
 203                 if(after->handle_func)
 204                         after->handle_func(C, after->handle_func_arg, after->retval);
 205                 if(after->butm_func)
 206                         after->butm_func(C, after->butm_func_arg, after->a2);
 207
 208                 if(after->opname) /* make WM_operatora_call option? */
 209                         WM_operator_call(C, after->opname, after->opcontext);
 210         }
 211
 212         BLI_freelistN(&funcs);
 213 }
 214
 215 static void ui_apply_but_BUT(bContext *C, uiBut *but, uiHandleButtonData *data)
 216 {
 217         ui_apply_but_func(C, but);
 218
 219         data->retval= but->retval;
 220         data->applied= 1;
 221 }
 222
 223 static void ui_apply_but_BUTM(bContext *C, uiBut *but, uiHandleButtonData *data)
 224 {
 225         ui_set_but_val(but, but->min);
 226         ui_apply_but_func(C, but);
 227
 228         data->retval= but->retval;
 229         data->applied= 1;
 230 }
 231
 232 static void ui_apply_but_BLOCK(bContext *C, uiBut *but, uiHandleButtonData *data)
 233 {
 234         if(but->type == COL)
 235                 ui_set_but_vectorf(but, data->vec);
 236         else if(ELEM3(but->type, MENU, ICONROW, ICONTEXTROW))
 237                 ui_set_but_val(but, data->value);
 238
 239         ui_check_but(but);
 240         ui_apply_but_func(C, but);
 241         data->retval= but->retval;
 242         data->applied= 1;
 243 }
 244
 245 static void ui_apply_but_TOG(bContext *C, uiBlock *block, uiBut *but, uiHandleButtonData *data)
 246 {
 247         double value;
 248         int w, lvalue, push;
 249
 250         /* local hack... */
 251         if(but->type==BUT_TOGDUAL && data->togdual) {
 252                 if(but->pointype==SHO)
 253                         but->poin += 2;
 254                 else if(but->pointype==INT)
 255                         but->poin += 4;
 256         }
 257
 258         value= ui_get_but_val(but);
 259         lvalue= (int)value;
 260
 261         if(but->bit) {
 262                 w= BTST(lvalue, but->bitnr);
 263                 if(w) lvalue = BCLR(lvalue, but->bitnr);
 264                 else lvalue = BSET(lvalue, but->bitnr);
 265
 266                 if(but->type==TOGR) {
 267                         if(!data->togonly) {
 268                                 lvalue= 1<<(but->bitnr);
 269
 270                                 ui_set_but_val(but, (double)lvalue);
 271                         }
 272                         else {
 273                                 if(lvalue==0) lvalue= 1<<(but->bitnr);
 274                         }
 275                 }
 276
 277                 ui_set_but_val(but, (double)lvalue);
 278                 if(but->type==ICONTOG || but->type==ICONTOGN) ui_check_but(but);
 279         }
 280         else {
 281
 282                 if(value==0.0) push= 1;
 283                 else push= 0;
 284
 285                 if(but->type==TOGN || but->type==ICONTOGN) push= !push;
 286                 ui_set_but_val(but, (double)push);
 287                 if(but->type==ICONTOG || but->type==ICONTOGN) ui_check_but(but);
 288         }
 289
 290         /* end local hack... */
 291         if(but->type==BUT_TOGDUAL && data->togdual) {
 292                 if(but->pointype==SHO)
 293                         but->poin -= 2;
 294                 else if(but->pointype==INT)
 295                         but->poin -= 4;
 296         }
 297
 298         ui_apply_but_func(C, but);
 299
 300         data->retval= but->retval;
 301         data->applied= 1;
 302 }
 303
 304 static void ui_apply_but_ROW(bContext *C, uiBlock *block, uiBut *but, uiHandleButtonData *data)
 305 {
 306         ui_set_but_val(but, but->max);
 307         ui_apply_but_func(C, but);
 308
 309         data->retval= but->retval;
 310         data->applied= 1;
 311 }
 312
 313 static void ui_apply_but_TEX(bContext *C, uiBut *but, uiHandleButtonData *data)
 314 {
 315         if(!data->str)
 316                 return;
 317
 318         ui_set_but_string(but, data->str);
 319         ui_check_but(but);
 320
 321         /* give butfunc the original text too */
 322         /* feature used for bone renaming, channels, etc */
 323         if(but->func_arg2==NULL) but->func_arg2= data->origstr;
 324         ui_apply_but_func(C, but);
 325         if(but->func_arg2==data->origstr) but->func_arg2= NULL;
 326
 327         data->retval= but->retval;
 328         data->applied= 1;
 329 }
 330
 331 static void ui_apply_but_NUM(bContext *C, uiBut *but, uiHandleButtonData *data)
 332 {
 333         if(data->str) {
 334                 /* XXX 2.50 missing python api */
 335 #if 0
 336                 if(BPY_button_eval(data->str, &data->value)) {
 337                         WM_report(C, WM_LOG_WARNING, "Invalid Python expression, check console");
 338                         data->value = 0.0f; /* Zero out value on error */
 339
 340                         if(data->str[0]) {
 341                                 data->cancel= 1; /* invalidate return value if eval failed, except when string was null */
 342                                 return;
 343                         }
 344                 }
 345 #else
 346                 data->value= atof(data->str);
 347 #endif
 348
 349                 if(!ui_is_but_float(but)) data->value= (int)data->value;
 350                 if(but->type==NUMABS) data->value= fabs(data->value);
 351                 if(data->value<but->min) data->value= but->min;
 352                 if(data->value>but->max) data->value= but->max;
 353         }
 354
 355         ui_set_but_val(but, data->value);
 356         ui_check_but(but);
 357         ui_apply_but_func(C, but);
 358
 359         data->retval= but->retval;
 360         data->applied= 1;
 361 }
 362
 363 static void ui_apply_but_LABEL(bContext *C, uiBut *but, uiHandleButtonData *data)
 364 {
 365         ui_apply_but_func(C, but);
 366         data->retval= but->retval;
 367         data->applied= 1;
 368 }
 369
 370 static void ui_apply_but_TOG3(bContext *C, uiBut *but, uiHandleButtonData *data)
 371 {
 372         if(but->pointype==SHO ) {
 373                 short *sp= (short *)but->poin;
 374
 375                 if( BTST(sp[1], but->bitnr)) {
 376                         sp[1]= BCLR(sp[1], but->bitnr);
 377                         sp[0]= BCLR(sp[0], but->bitnr);
 378                 }
 379                 else if( BTST(sp[0], but->bitnr)) {
 380                         sp[1]= BSET(sp[1], but->bitnr);
 381                 } else {
 382                         sp[0]= BSET(sp[0], but->bitnr);
 383                 }
 384         }
 385         else {
 386                 if( BTST(*(but->poin+2), but->bitnr)) {
 387                         *(but->poin+2)= BCLR(*(but->poin+2), but->bitnr);
 388                         *(but->poin)= BCLR(*(but->poin), but->bitnr);
 389                 }
 390                 else if( BTST(*(but->poin), but->bitnr)) {
 391                         *(but->poin+2)= BSET(*(but->poin+2), but->bitnr);
 392                 } else {
 393                         *(but->poin)= BSET(*(but->poin), but->bitnr);
 394                 }
 395         }
 396
 397         ui_check_but(but);
 398         ui_apply_but_func(C, but);
 399         data->retval= but->retval;
 400         data->applied= 1;
 401 }
 402
 403 static void ui_apply_but_VEC(bContext *C, uiBut *but, uiHandleButtonData *data)
 404 {
 405         ui_set_but_vectorf(but, data->vec);
 406         ui_check_but(but);
 407         ui_apply_but_func(C, but);
 408
 409         data->retval= but->retval;
 410         data->applied= 1;
 411 }
 412
 413 static void ui_apply_but_COLORBAND(bContext *C, uiBut *but, uiHandleButtonData *data)
 414 {
 415         ui_apply_but_func(C, but);
 416         data->retval= but->retval;
 417         data->applied= 1;
 418 }
 419
 420 static void ui_apply_but_CURVE(bContext *C, uiBut *but, uiHandleButtonData *data)
 421 {
 422         ui_apply_but_func(C, but);
 423         data->retval= but->retval;
 424         data->applied= 1;
 425 }
 426
 427 static void ui_apply_but_IDPOIN(bContext *C, uiBut *but, uiHandleButtonData *data)
 428 {
 429         but->idpoin_func(C, data->str, but->idpoin_idpp);
 430         ui_check_but(but);
 431         ui_apply_but_func(C, but);
 432         data->retval= but->retval;
 433         data->applied= 1;
 434 }
 435
 436 #ifdef INTERNATIONAL
 437 static void ui_apply_but_CHARTAB(bContext *C, uiBut *but, uiHandleButtonData *data)
 438 {
 439         ui_apply_but_func(C, but);
 440         data->retval= but->retval;
 441         data->applied= 1;
 442 }
 443 #endif
 444
 445 static void ui_apply_button(bContext *C, uiBlock *block, uiBut *but, uiHandleButtonData *data, int interactive)
 446 {
 447         char *editstr;
 448         double *editval;
 449         float *editvec;
 450         ColorBand *editcoba;
 451         CurveMapping *editcumap;
 452
 453         data->retval= 0;
 454
 455         /* if we cancel and have not applied yet, there is nothing to do,
 456          * otherwise we have to restore the original value again */
 457         if(data->cancel) {
 458                 if(!data->applied)
 459                         return;
 460
 461                 if(data->str) MEM_freeN(data->str);
 462                 data->str= data->origstr;
 463                 data->origstr= NULL;
 464                 data->value= data->origvalue;
 465                 data->origvalue= 0.0;
 466                 VECCOPY(data->vec, data->origvec);
 467                 data->origvec[0]= data->origvec[1]= data->origvec[2]= 0.0f;
 468         }
 469         else {
 470                 /* we avoid applying interactive edits a second time
 471                  * at the end with the appliedinteractive flag */
 472                 if(interactive)
 473                         data->appliedinteractive= 1;
 474                 else if(data->appliedinteractive)
 475                         return;
 476         }
 477
 478         /* ensures we are writing actual values */
 479         editstr= but->editstr;
 480         editval= but->editval;
 481         editvec= but->editvec;
 482         editcoba= but->editcoba;
 483         editcumap= but->editcumap;
 484         but->editstr= NULL;
 485         but->editval= NULL;
 486         but->editvec= NULL;
 487         but->editcoba= NULL;
 488         but->editcumap= NULL;
 489
 490         /* handle different types */
 491         switch(but->type) {
 492                 case BUT:
 493                         ui_apply_but_BUT(C, but, data);
 494                         break;
 495                 case TEX:
 496                         ui_apply_but_TEX(C, but, data);
 497                         break;
 498                 case TOG:
 499                 case TOGR:
 500                 case ICONTOG:
 501                 case ICONTOGN:
 502                 case TOGN:
 503                 case BUT_TOGDUAL:
 504                         ui_apply_but_TOG(C, block, but, data);
 505                         break;
 506                 case ROW:
 507                         ui_apply_but_ROW(C, block, but, data);
 508                         break;
 509                 case SCROLL:
 510                         break;
 511                 case NUM:
 512                 case NUMABS:
 513                         ui_apply_but_NUM(C, but, data);
 514                         break;
 515                 case SLI:
 516                 case NUMSLI:
 517                         ui_apply_but_NUM(C, but, data);
 518                         break;
 519                 case HSVSLI:
 520                         break;
 521                 case ROUNDBOX:
 522                 case LABEL:
 523                         ui_apply_but_LABEL(C, but, data);
 524                         break;
 525                 case TOG3:
 526                         ui_apply_but_TOG3(C, but, data);
 527                         break;
 528                 case MENU:
 529                 case ICONROW:
 530                 case ICONTEXTROW:
 531                 case BLOCK:
 532                 case PULLDOWN:
 533                 case COL:
 534                         ui_apply_but_BLOCK(C, but, data);
 535                         break;
 536                 case BUTM:
 537                         ui_apply_but_BUTM(C, but, data);
 538                         break;
 539                 case BUT_NORMAL:
 540                 case HSVCUBE:
 541                         ui_apply_but_VEC(C, but, data);
 542                         break;
 543                 case BUT_COLORBAND:
 544                         ui_apply_but_COLORBAND(C, but, data);
 545                         break;
 546                 case BUT_CURVE:
 547                         ui_apply_but_CURVE(C, but, data);
 548                         break;
 549                 case IDPOIN:
 550                         ui_apply_but_IDPOIN(C, but, data);
 551                         break;
 552 #ifdef INTERNATIONAL
 553                 case CHARTAB:
 554                         ui_apply_but_CHARTAB(C, but, data);
 555                         break;
 556 #endif
 557                 case LINK:
 558                 case INLINK:
 559                         break;
 560         }
 561
 562         but->editstr= editstr;
 563         but->editval= editval;
 564         but->editvec= editvec;
 565         but->editcoba= editcoba;
 566         but->editcumap= editcumap;
 567 }
 568
 569 /* ******************* copy and paste ********************  */
 570
 571 /* c = copy, v = paste */
 572 static void ui_but_copy_paste(bContext *C, uiBut *but, uiHandleButtonData *data, char mode)
 573 {
 574         static ColorBand but_copypaste_coba = {0};
 575         char buf[UI_MAX_DRAW_STR+1]= {0};
 576         double val;
 577
 578         if(mode=='v' && but->lock)
 579                 return;
 580
 581         if(mode=='v') {
 582                 /* extract first line from clipboard in case of multi-line copies */
 583                 char *p = NULL; /* XXX 2.48 getClipboard(0); */
 584                 if(p) {
 585                         int i = 0;
 586                         while (*p && *p!='\r' && *p!='\n' && i<UI_MAX_DRAW_STR) {
 587                                 buf[i++]=*p;
 588                                 p++;
 589                         }
 590                         buf[i]= 0;
 591                 }
 592         }
 593
 594         /* numeric value */
 595         if ELEM4(but->type, NUM, NUMABS, NUMSLI, HSVSLI) {
 596
 597                 if(but->poin==NULL && but->rnapoin.data==NULL);
 598                 else if(mode=='c') {
 599                         sprintf(buf, "%f", ui_get_but_val(but));
 600                         /* XXX 2.48 putClipboard(buf, 0); */
 601                 }
 602                 else {
 603                         if (sscanf(buf, " %lf ", &val) == 1) {
 604                                 button_activate_state(C, but, BUTTON_STATE_NUM_EDITING);
 605                                 data->value= val;
 606                                 button_activate_state(C, but, BUTTON_STATE_EXIT);
 607                         }
 608                 }
 609         }
 610
 611         /* RGB triple */
 612         else if(but->type==COL) {
 613                 float rgb[3];
 614
 615                 if(but->poin==NULL && but->rnapoin.data==NULL);
 616                 else if(mode=='c') {
 617
 618                         ui_get_but_vectorf(but, rgb);
 619                         sprintf(buf, "[%f, %f, %f]", rgb[0], rgb[1], rgb[2]);
 620                         /* XXX 2.48 putClipboard(buf, 0); */
 621
 622                 }
 623                 else {
 624                         if (sscanf(buf, "[%f, %f, %f]", &rgb[0], &rgb[1], &rgb[2]) == 3) {
 625                                 button_activate_state(C, but, BUTTON_STATE_NUM_EDITING);
 626                                 VECCOPY(data->vec, rgb);
 627                                 button_activate_state(C, but, BUTTON_STATE_EXIT);
 628                         }
 629                 }
 630         }
 631
 632         /* text/string and ID data */
 633         else if(ELEM(but->type, TEX, IDPOIN)) {
 634                 uiHandleButtonData *data= but->active;
 635
 636                 if(but->poin==NULL && but->rnapoin.data==NULL);
 637                 else if(mode=='c') {
 638                         button_activate_state(C, but, BUTTON_STATE_TEXT_EDITING);
 639                         BLI_strncpy(buf, data->str, UI_MAX_DRAW_STR);
 640                         /* XXX 2.48 putClipboard(data->str, 0); */
 641                         data->cancel= 1;
 642                         button_activate_state(C, but, BUTTON_STATE_EXIT);
 643                 }
 644                 else {
 645                         button_activate_state(C, but, BUTTON_STATE_TEXT_EDITING);
 646                         BLI_strncpy(data->str, buf, data->maxlen);
 647                         button_activate_state(C, but, BUTTON_STATE_EXIT);
 648                 }
 649         }
 650         /* colorband (not supported by system clipboard) */
 651         else if(but->type==BUT_COLORBAND) {
 652                 if(mode=='c') {
 653                         if(but->poin)
 654                                 return;
 655
 656                         memcpy(&but_copypaste_coba, but->poin, sizeof(ColorBand));
 657                 }
 658                 else {
 659                         if(but_copypaste_coba.tot==0)
 660                                 return;
 661
 662                         if(!but->poin)
 663                                 but->poin= MEM_callocN(sizeof(ColorBand), "colorband");
 664
 665                         button_activate_state(C, but, BUTTON_STATE_NUM_EDITING);
 666                         memcpy(data->coba, &but_copypaste_coba, sizeof(ColorBand) );
 667                         button_activate_state(C, but, BUTTON_STATE_EXIT);
 668                 }
 669         }
 670 }
 671
 672 /* ************* in-button text selection/editing ************* */
 673
 674 /* return 1 if char ch is special character, otherwise return 0 */
 675 static short test_special_char(char ch)
 676 {
 677         switch(ch) {
 678                 case '\\':
 679                 case '/':
 680                 case '~':
 681                 case '!':
 682                 case '@':
 683                 case '#':
 684                 case '$':
 685                 case '%':
 686                 case '^':
 687                 case '&':
 688                 case '*':
 689                 case '(':
 690                 case ')':
 691                 case '+':
 692                 case '=':
 693                 case '{':
 694                 case '}':
 695                 case '[':
 696                 case ']':
 697                 case ':':
 698                 case ';':
 699                 case '\'':
 700                 case '\"':
 701                 case '<':
 702                 case '>':
 703                 case ',':
 704                 case '.':
 705                 case '?':
 706                 case '_':
 707                 case '-':
 708                 case ' ':
 709                         return 1;
 710                         break;
 711                 default:
 712                         break;
 713         }
 714         return 0;
 715 }
 716
 717 static int ui_textedit_delete_selection(uiBut *but, uiHandleButtonData *data)
 718 {
 719         char *str;
 720         int x, changed;
 721
 722         str= data->str;
 723         changed= (but->selsta != but->selend);
 724
 725         for(x=0; x< strlen(str); x++) {
 726                 if (but->selend + x <= strlen(str) ) {
 727                         str[but->selsta + x]= str[but->selend + x];
 728                 } else {
 729                         str[but->selsta + x]= '\0';
 730                         break;
 731                 }
 732         }
 733
 734         but->pos = but->selend = but->selsta;
 735
 736         return changed;
 737 }
 738
 739 static void ui_textedit_set_cursor_pos(uiBut *but, uiHandleButtonData *data, short x)
 740 {
 741         char *origstr;
 742
 743         origstr= MEM_callocN(sizeof(char)*(data->maxlen+1), "ui_textedit origstr");
 744
 745         BLI_strncpy(origstr, but->drawstr, data->maxlen+1);
 746         but->pos= strlen(origstr)-but->ofs;
 747
 748         while((but->aspect*UI_GetStringWidth(but->font, origstr+but->ofs, 0) + but->x1) > x) {
 749                 if (but->pos <= 0) break;
 750                 but->pos--;
 751                 origstr[but->pos+but->ofs] = 0;
 752         }
 753
 754         but->pos -= strlen(but->str);
 755         but->pos += but->ofs;
 756         if(but->pos<0) but->pos= 0;
 757
 758         MEM_freeN(origstr);
 759 }
 760
 761 static void ui_textedit_set_cursor_select(uiBut *but, uiHandleButtonData *data, short x)
 762 {
 763         if (x > data->selstartx) data->selextend = EXTEND_RIGHT;
 764         else if (x < data->selstartx) data->selextend = EXTEND_LEFT;
 765
 766         ui_textedit_set_cursor_pos(but, data, x);
 767
 768         if (data->selextend == EXTEND_RIGHT) but->selend = but->pos;
 769         if (data->selextend == EXTEND_LEFT) but->selsta = but->pos;
 770
 771         ui_check_but(but);
 772 }
 773
 774 static int ui_textedit_type_ascii(uiBut *but, uiHandleButtonData *data, char ascii)
 775 {
 776         char *str;
 777         int len, x, changed= 0;
 778
 779         str= data->str;
 780         len= strlen(str);
 781
 782         if(len-(but->selend - but->selsta)+1 <= data->maxlen) {
 783                 /* type over the current selection */
 784                 if ((but->selend - but->selsta) > 0)
 785                         changed= ui_textedit_delete_selection(but, data);
 786
 787                 len= strlen(str);
 788                 if(len < data->maxlen) {
 789                         for(x= data->maxlen; x>but->pos; x--)
 790                                 str[x]= str[x-1];
 791                         str[but->pos]= ascii;
 792                         str[len+1]= '\0';
 793
 794                         but->pos++;
 795                         changed= 1;
 796                 }
 797         }
 798
 799         return WM_UI_HANDLER_BREAK;
 800 }
 801
 802 void ui_textedit_move(uiBut *but, uiHandleButtonData *data, int direction, int select, int jump)
 803 {
 804         char *str;
 805         int len;
 806
 807         str= data->str;
 808         len= strlen(str);
 809
 810         if(direction) { /* right*/
 811                 /* if there's a selection */
 812                 if ((but->selend - but->selsta) > 0) {
 813                         /* extend the selection based on the first direction taken */
 814                         if(select) {
 815                                 if (!data->selextend) {
 816                                         data->selextend = EXTEND_RIGHT;
 817                                 }
 818                                 if (data->selextend == EXTEND_RIGHT) {
 819                                         but->selend++;
 820                                         if (but->selend > len) but->selend = len;
 821                                 } else if (data->selextend == EXTEND_LEFT) {
 822                                         but->selsta++;
 823                                         /* if the selection start has gone past the end,
 824                                         * flip them so they're in sync again */
 825                                         if (but->selsta == but->selend) {
 826                                                 but->pos = but->selsta;
 827                                                 data->selextend = EXTEND_RIGHT;
 828                                         }
 829                                 }
 830                         } else {
 831                                 but->selsta = but->pos = but->selend;
 832                                 data->selextend = 0;
 833                         }
 834                 } else {
 835                         if(select) {
 836                                 /* make a selection, starting from the cursor position */
 837                                 but->selsta = but->pos;
 838
 839                                 but->pos++;
 840                                 if(but->pos>strlen(str)) but->pos= strlen(str);
 841
 842                                 but->selend = but->pos;
 843                         } else if(jump) {
 844                                 /* jump betweenn special characters (/,\,_,-, etc.),
 845                                  * look at function test_special_char() for complete
 846                                  * list of special character, ctr -> */
 847                                 while(but->pos < len) {
 848                                         but->pos++;
 849                                         if(test_special_char(str[but->pos])) break;
 850                                 }
 851                         } else {
 852                                 but->pos++;
 853                                 if(but->pos>strlen(str)) but->pos= strlen(str);
 854                         }
 855                 }
 856         }
 857         else { /* left */
 858                 /* if there's a selection */
 859                 if ((but->selend - but->selsta) > 0) {
 860                         /* extend the selection based on the first direction taken */
 861                         if(select) {
 862                                 if (!data->selextend) {
 863                                         data->selextend = EXTEND_LEFT;
 864                                 }
 865                                 if (data->selextend == EXTEND_LEFT) {
 866                                         but->selsta--;
 867                                         if (but->selsta < 0) but->selsta = 0;
 868                                 } else if (data->selextend == EXTEND_RIGHT) {
 869                                         but->selend--;
 870                                         /* if the selection start has gone past the end,
 871                                         * flip them so they're in sync again */
 872                                         if (but->selsta == but->selend) {
 873                                                 but->pos = but->selsta;
 874                                                 data->selextend = EXTEND_LEFT;
 875                                         }
 876                                 }
 877                         } else {
 878                                 but->pos = but->selend = but->selsta;
 879                                 data->selextend = 0;
 880                         }
 881                 } else {
 882                         if(select) {
 883                                 /* make a selection, starting from the cursor position */
 884                                 but->selend = but->pos;
 885
 886                                 but->pos--;
 887                                 if(but->pos<0) but->pos= 0;
 888
 889                                 but->selsta = but->pos;
 890                         } else if(jump) {
 891                                 /* jump betweenn special characters (/,\,_,-, etc.),
 892                                  * look at function test_special_char() for complete
 893                                  * list of special character, ctr -> */
 894                                 while(but->pos > 0){
 895                                         but->pos--;
 896                                         if(test_special_char(str[but->pos])) break;
 897                                 }
 898                         } else {
 899                                 if(but->pos>0) but->pos--;
 900                         }
 901                 }
 902         }
 903 }
 904
 905 void ui_textedit_move_end(uiBut *but, uiHandleButtonData *data, int direction, int select)
 906 {
 907         char *str;
 908
 909         str= data->str;
 910
 911         if(direction) { /* right */
 912                 if(select) {
 913                         but->selsta = but->pos;
 914                         but->selend = strlen(str);
 915                         data->selextend = EXTEND_RIGHT;
 916                 } else {
 917                         but->selsta = but->selend = but->pos= strlen(str);
 918                 }
 919         }
 920         else { /* left */
 921                 if(select) {
 922                         but->selend = but->pos;
 923                         but->selsta = 0;
 924                         data->selextend = EXTEND_LEFT;
 925                 } else {
 926                         but->selsta = but->selend = but->pos= 0;
 927                 }
 928         }
 929 }
 930
 931 static int ui_textedit_delete(uiBut *but, uiHandleButtonData *data, int direction, int all)
 932 {
 933         char *str;
 934         int len, x, changed= 0;
 935
 936         str= data->str;
 937         len= strlen(str);
 938
 939         if(all) {
 940                 if(len) changed=1;
 941                 str[0]= 0;
 942                 but->pos= 0;
 943         }
 944         else if(direction) { /* delete */
 945                 if ((but->selend - but->selsta) > 0) {
 946                         changed= ui_textedit_delete_selection(but, data);
 947                 }
 948                 else if(but->pos>=0 && but->pos<len) {
 949                         for(x=but->pos; x<len; x++)
 950                                 str[x]= str[x+1];
 951                         str[len-1]='\0';
 952                         changed= 1;
 953                 }
 954         }
 955         else { /* backspace */
 956                 if(len!=0) {
 957                         if ((but->selend - but->selsta) > 0) {
 958                                 ui_textedit_delete_selection(but, data);
 959                         }
 960                         else if(but->pos>0) {
 961                                 for(x=but->pos; x<len; x++)
 962                                         str[x-1]= str[x];
 963                                 str[len-1]='\0';
 964
 965                                 but->pos--;
 966                                 changed= 1;
 967                         }
 968                 }
 969         }
 970
 971         return changed;
 972 }
 973
 974 static int ui_textedit_autocomplete(bContext *C, uiBut *but, uiHandleButtonData *data)
 975 {
 976         char *str;
 977         int changed= 1;
 978
 979         str= data->str;
 980         but->autocomplete_func(C, str, but->autofunc_arg);
 981         but->pos= strlen(str);
 982
 983         return changed;
 984 }
 985
 986 static int ui_textedit_copypaste(uiBut *but, uiHandleButtonData *data, int paste, int copy, int cut)
 987 {
 988         char buf[UI_MAX_DRAW_STR]={0};
 989         char *str, *p;
 990         int len, x, y, i, changed= 0;
 991
 992         str= data->str;
 993         len= strlen(str);
 994
 995         /* paste */
 996         if (paste) {
 997                 /* extract the first line from the clipboard */
 998                 p = NULL; /* XXX 2.48 getClipboard(0); */
 999
1000                 if(p && p[0]) {
1001                         while (*p && *p!='\r' && *p!='\n' && i<UI_MAX_DRAW_STR) {
1002                                 buf[i++]=*p;
1003                                 p++;
1004                         }
1005                         buf[i]= 0;
1006
1007                         /* paste over the current selection */
1008                         if ((but->selend - but->selsta) > 0)
1009                                 ui_textedit_delete_selection(but, data);
1010
1011                         for (y=0; y<strlen(buf); y++)
1012                         {
1013                                 /* add contents of buffer */
1014                                 if(len < data->maxlen) {
1015                                         for(x= data->maxlen; x>but->pos; x--)
1016                                                 str[x]= str[x-1];
1017                                         str[but->pos]= buf[y];
1018                                         but->pos++;
1019                                         len++;
1020                                         str[len]= '\0';
1021                                 }
1022                         }
1023
1024                         changed= 1;
1025                 }
1026         }
1027         /* cut & copy */
1028         else if (copy || cut) {
1029                 /* copy the contents to the copypaste buffer */
1030                 for(x= but->selsta; x <= but->selend; x++) {
1031                         if (x==but->selend)
1032                                 buf[x] = '\0';
1033                         else
1034                                 buf[(x - but->selsta)] = str[x];
1035                 }
1036                 /* XXX 2.48 putClipboard(buf, 0); */
1037
1038                 /* for cut only, delete the selection afterwards */
1039                 if(cut)
1040                         if((but->selend - but->selsta) > 0)
1041                                 changed= ui_textedit_delete_selection(but, data);
1042         }
1043
1044         return changed;
1045 }
1046
1047 static void ui_textedit_begin(uiBut *but, uiHandleButtonData *data)
1048 {
1049         if(data->str) {
1050                 MEM_freeN(data->str);
1051                 data->str= NULL;
1052         }
1053
1054         /* retrieve string */
1055         if(but->type == TEX) {
1056                 data->maxlen= but->max;
1057                 data->str= MEM_callocN(sizeof(char)*(data->maxlen+1), "textedit str");
1058
1059                 ui_get_but_string(but, data->str, data->maxlen+1);
1060         }
1061         else if(but->type == IDPOIN) {
1062                 ID *id;
1063
1064                 data->maxlen= 22;
1065                 data->str= MEM_callocN(sizeof(char)*(data->maxlen+1), "textedit str");
1066
1067                 id= *but->idpoin_idpp;
1068                 if(id) BLI_strncpy(data->str, id->name+2, data->maxlen+1);
1069                 else data->str[0]= 0;
1070         }
1071         else {
1072                 double value;
1073
1074                 data->maxlen= UI_MAX_DRAW_STR;
1075                 data->str= MEM_callocN(sizeof(char)*(data->maxlen+1), "textedit str");
1076
1077                 value= ui_get_but_val(but);
1078                 if(ui_is_but_float(but)) {
1079                         if(but->a2) { /* amount of digits defined */
1080                                 if(but->a2==1) sprintf(data->str, "%.1f", value);
1081                                 else if(but->a2==2) sprintf(data->str, "%.2f", value);
1082                                 else if(but->a2==3) sprintf(data->str, "%.3f", value);
1083                                 else sprintf(data->str, "%.4f", value);
1084                         }
1085                         else sprintf(data->str, "%.3f", value);
1086                 }
1087                 else {
1088                         sprintf(data->str, "%d", (int)value);
1089                 }
1090         }
1091
1092         data->origstr= BLI_strdup(data->str);
1093         data->selextend= 0;
1094         data->selstartx= 0;
1095
1096         /* set cursor pos to the end of the text */
1097         but->editstr= data->str;
1098         but->pos= strlen(data->str);
1099         but->selsta= 0;
1100         but->selend= strlen(but->drawstr) - strlen(but->str);
1101
1102         ui_check_but(but);
1103 }
1104
1105 static void ui_textedit_end(uiBut *but, uiHandleButtonData *data)
1106 {
1107         if(but) {
1108                 but->editstr= 0;
1109                 but->pos= -1;
1110         }
1111 }
1112
1113 static void ui_textedit_next_but(uiBlock *block, uiBut *actbut, uiHandleButtonData *data)
1114 {
1115         uiBut *but;
1116
1117         /* label and roundbox can overlap real buttons (backdrops...) */
1118         if(actbut->type==LABEL && actbut->type==ROUNDBOX)
1119                 return;
1120
1121         for(but= actbut->next; but; but= but->next) {
1122                 if(ELEM5(but->type, TEX, NUM, NUMABS, NUMSLI, HSVSLI)) {
1123                         data->postbut= but;
1124                         data->posttype= BUTTON_ACTIVATE_TEXT_EDITING;
1125                         return;
1126                 }
1127         }
1128         for(but= block->buttons.first; but!=actbut; but= but->next) {
1129                 if(ELEM5(but->type, TEX, NUM, NUMABS, NUMSLI, HSVSLI)) {
1130                         data->postbut= but;
1131                         data->posttype= BUTTON_ACTIVATE_TEXT_EDITING;
1132                         return;
1133                 }
1134         }
1135 }
1136
1137 static void ui_textedit_prev_but(uiBlock *block, uiBut *actbut, uiHandleButtonData *data)
1138 {
1139         uiBut *but;
1140
1141         /* label and roundbox can overlap real buttons (backdrops...) */
1142         if(actbut->type==LABEL && actbut->type==ROUNDBOX)
1143                 return;
1144
1145         for(but= actbut->prev; but; but= but->prev) {
1146                 if(ELEM5(but->type, TEX, NUM, NUMABS, NUMSLI, HSVSLI)) {
1147                         data->postbut= but;
1148                         data->posttype= BUTTON_ACTIVATE_TEXT_EDITING;
1149                         return;
1150                 }
1151         }
1152         for(but= block->buttons.last; but!=actbut; but= but->prev) {
1153                 if(ELEM5(but->type, TEX, NUM, NUMABS, NUMSLI, HSVSLI)) {
1154                         data->postbut= but;
1155                         data->posttype= BUTTON_ACTIVATE_TEXT_EDITING;
1156                         return;
1157                 }
1158         }
1159 }
1160
1161 static void ui_do_but_textedit(bContext *C, uiBlock *block, uiBut *but, uiHandleButtonData *data, wmEvent *event)
1162 {
1163         int mx, my, changed= 0, retval= WM_UI_HANDLER_CONTINUE;
1164
1165         switch(event->type) {
1166                 case RIGHTMOUSE:
1167                 case ESCKEY:
1168                         data->cancel= 1;
1169                         button_activate_state(C, but, BUTTON_STATE_EXIT);
1170                         retval= WM_UI_HANDLER_BREAK;
1171                         break;
1172                 case LEFTMOUSE: {
1173                         if(event->val) {
1174                                 mx= event->x;
1175                                 my= event->y;
1176                                 ui_window_to_block(data->region, block, &mx, &my);
1177
1178                                 if ((but->y1 <= my) && (my <= but->y2) && (but->x1 <= mx) && (mx <= but->x2)) {
1179                                         ui_textedit_set_cursor_pos(but, data, mx);
1180                                         but->selsta = but->selend = but->pos;
1181                                         data->selstartx= mx;
1182
1183                                         button_activate_state(C, but, BUTTON_STATE_TEXT_SELECTING);
1184                                         retval= WM_UI_HANDLER_BREAK;
1185                                 }
1186                                 else {
1187                                         button_activate_state(C, but, BUTTON_STATE_EXIT);
1188                                         retval= WM_UI_HANDLER_BREAK;
1189                                 }
1190                         }
1191                         break;
1192                 }
1193         }
1194
1195         if(event->val) {
1196                 switch (event->type) {
1197                         case VKEY:
1198                         case XKEY:
1199                         case CKEY:
1200                                 if(event->ctrl || event->oskey) {
1201                                         if(event->type == VKEY)
1202                                                 changed= ui_textedit_copypaste(but, data, 1, 0, 0);
1203                                         else if(event->type == XKEY)
1204                                                 changed= ui_textedit_copypaste(but, data, 0, 1, 0);
1205                                         else if(event->type == CKEY)
1206                                                 changed= ui_textedit_copypaste(but, data, 0, 0, 1);
1207
1208                                         retval= WM_UI_HANDLER_BREAK;
1209                                 }
1210                                 break;
1211                         case RIGHTARROWKEY:
1212                                 ui_textedit_move(but, data, 1, event->shift, event->ctrl);
1213                                 retval= WM_UI_HANDLER_BREAK;
1214                                 break;
1215                         case LEFTARROWKEY:
1216                                 ui_textedit_move(but, data, 0, event->shift, event->ctrl);
1217                                 retval= WM_UI_HANDLER_BREAK;
1218                                 break;
1219                         case DOWNARROWKEY:
1220                         case ENDKEY:
1221                                 ui_textedit_move_end(but, data, 1, event->shift);
1222                                 retval= WM_UI_HANDLER_BREAK;
1223                                 break;
1224                         case UPARROWKEY:
1225                         case HOMEKEY:
1226                                 ui_textedit_move_end(but, data, 0, event->shift);
1227                                 retval= WM_UI_HANDLER_BREAK;
1228                                 break;
1229                         case PADENTER:
1230                         case RETKEY:
1231                                 button_activate_state(C, but, BUTTON_STATE_EXIT);
1232                                 retval= WM_UI_HANDLER_BREAK;
1233                                 break;
1234                         case DELKEY:
1235                                 changed= ui_textedit_delete(but, data, 1, 0);
1236                                 retval= WM_UI_HANDLER_BREAK;
1237                                 break;
1238
1239                         case BACKSPACEKEY:
1240                                 changed= ui_textedit_delete(but, data, 0, event->shift);
1241                                 retval= WM_UI_HANDLER_BREAK;
1242                                 break;
1243
1244                         case TABKEY:
1245                                 /* there is a key conflict here, we can't tab with autocomplete */
1246                                 if(but->autocomplete_func) {
1247                                         changed= ui_textedit_autocomplete(C, but, data);
1248                                         retval= WM_UI_HANDLER_BREAK;
1249                                 }
1250                                 /* the hotkey here is not well defined, was G.qual so we check all */
1251                                 else if(event->shift || event->ctrl || event->alt || event->oskey) {
1252                                         ui_textedit_prev_but(block, but, data);
1253                                         button_activate_state(C, but, BUTTON_STATE_EXIT);
1254                                 }
1255                                 else {
1256                                         ui_textedit_next_but(block, but, data);
1257                                         button_activate_state(C, but, BUTTON_STATE_EXIT);
1258                                 }
1259                                 retval= WM_UI_HANDLER_BREAK;
1260                                 break;
1261                 }
1262
1263                 if(event->ascii && (retval == WM_UI_HANDLER_CONTINUE)) {
1264                         changed= ui_textedit_type_ascii(but, data, event->ascii);
1265                         retval= WM_UI_HANDLER_BREAK;
1266                 }
1267         }
1268
1269         if(changed) {
1270                 if(data->interactive) ui_apply_button(C, block, but, data, 1);
1271                 else ui_check_but(but);
1272         }
1273
1274         if(changed || (retval == WM_UI_HANDLER_BREAK))
1275                 ED_region_tag_redraw(data->region);
1276 }
1277
1278 static void ui_do_but_textedit_select(bContext *C, uiBlock *block, uiBut *but, uiHandleButtonData *data, wmEvent *event)
1279 {
1280         int mx, my, retval= WM_UI_HANDLER_CONTINUE;
1281
1282         switch(event->type) {
1283                 case MOUSEMOVE: {
1284                         mx= event->x;
1285                         my= event->y;
1286                         ui_window_to_block(data->region, block, &mx, &my);
1287
1288                         ui_textedit_set_cursor_select(but, data, mx);
1289                         retval= WM_UI_HANDLER_BREAK;
1290                         break;
1291                 }
1292                 case LEFTMOUSE:
1293                         if(event->val == 0)
1294                                 button_activate_state(C, but, BUTTON_STATE_TEXT_EDITING);
1295                         retval= WM_UI_HANDLER_BREAK;
1296                         break;
1297         }
1298
1299         if(retval == WM_UI_HANDLER_BREAK) {
1300                 ui_check_but(but);
1301                 ED_region_tag_redraw(data->region);
1302         }
1303 }
1304
1305 /* ************* number editing for various types ************* */
1306
1307 static void ui_numedit_begin(uiBut *but, uiHandleButtonData *data)
1308 {
1309         float butrange;
1310
1311         if(but->type == BUT_CURVE) {
1312                 data->cumap= (CurveMapping*)but->poin;
1313                 but->editcumap= data->coba;
1314         }
1315         else if(but->type == BUT_COLORBAND) {
1316                 data->coba= (ColorBand*)but->poin;
1317                 but->editcoba= data->coba;
1318         }
1319         else if(ELEM(but->type, BUT_NORMAL, HSVCUBE)) {
1320                 ui_get_but_vectorf(but, data->origvec);
1321                 VECCOPY(data->vec, data->origvec);
1322                 but->editvec= data->vec;
1323         }
1324         else {
1325                 data->origvalue= ui_get_but_val(but);
1326                 data->value= data->origvalue;
1327                 but->editval= &data->value;
1328
1329                 butrange= (but->max - but->min);
1330                 data->dragfstart= (butrange == 0.0)? 0.0f: (data->value - but->min)/butrange;
1331                 data->dragf= data->dragfstart;
1332         }
1333
1334         data->dragchange= 0;
1335         data->draglock= 1;
1336 }
1337
1338 static void ui_numedit_end(uiBut *but, uiHandleButtonData *data)
1339 {
1340         but->editval= NULL;
1341         but->editvec= NULL;
1342         but->editcoba= NULL;
1343         but->editcumap= NULL;
1344
1345         data->dragstartx= 0;
1346         data->draglastx= 0;
1347         data->dragchange= 0;
1348         data->dragcbd= NULL;
1349         data->dragsel= 0;
1350 }
1351
1352 static void ui_numedit_apply(bContext *C, uiBlock *block, uiBut *but, uiHandleButtonData *data)
1353 {
1354         if(data->interactive) ui_apply_button(C, block, but, data, 1);
1355         else ui_check_but(but);
1356
1357         ED_region_tag_redraw(data->region);
1358 }
1359
1360 /* ****************** menu opening for various types **************** */
1361
1362 static void ui_blockopen_begin(bContext *C, uiBut *but, uiHandleButtonData *data)
1363 {
1364         uiBlockFuncFP func= NULL;
1365         void *arg= NULL;
1366
1367         switch(but->type) {
1368                 case BLOCK:
1369                 case PULLDOWN:
1370                         func= but->block_func;
1371                         arg= but->poin;
1372                         break;
1373                 case MENU:
1374                         data->origvalue= ui_get_but_val(but);
1375                         data->value= data->origvalue;
1376                         but->editval= &data->value;
1377
1378                         func= ui_block_func_MENU;
1379                         arg= but;
1380                         break;
1381                 case ICONROW:
1382                         func= ui_block_func_ICONROW;
1383                         arg= but;
1384                         break;
1385                 case ICONTEXTROW:
1386                         func= ui_block_func_ICONTEXTROW;
1387                         arg= but;
1388                         break;
1389                 case COL:
1390                         ui_get_but_vectorf(but, data->origvec);
1391                         VECCOPY(data->vec, data->origvec);
1392                         but->editvec= data->vec;
1393
1394                         func= ui_block_func_COL;
1395                         arg= but;
1396                         break;
1397         }
1398
1399         if(func) {
1400                 data->menu= ui_menu_block_create(C, data->region, but, func, arg);
1401                 if(but->block->handle)
1402                         data->menu->popup= but->block->handle->popup;
1403         }
1404
1405         /* this makes adjacent blocks auto open from now on */
1406         if(but->block->auto_open==0) but->block->auto_open= 1;
1407 }
1408
1409 static void ui_blockopen_end(bContext *C, uiBut *but, uiHandleButtonData *data)
1410 {
1411         if(but) {
1412                 but->editval= NULL;
1413                 but->editvec= NULL;
1414
1415                 but->block->auto_open_last= PIL_check_seconds_timer();
1416         }
1417
1418         if(data->menu) {
1419                 ui_menu_block_free(C, data->menu);
1420                 data->menu= NULL;
1421         }
1422 }
1423
1424 /* ***************** events for different button types *************** */
1425
1426 static int ui_do_but_BUT(bContext *C, uiBut *but, uiHandleButtonData *data, wmEvent *event)
1427 {
1428         if(data->state == BUTTON_STATE_HIGHLIGHT) {
1429                 if(event->type == LEFTMOUSE && event->val) {
1430                         button_activate_state(C, but, BUTTON_STATE_WAIT_RELEASE);
1431                         return WM_UI_HANDLER_BREAK;
1432                 }
1433                 else if(ELEM(event->type, PADENTER, RETKEY) && event->val) {
1434                         button_activate_state(C, but, BUTTON_STATE_WAIT_FLASH);
1435                         return WM_UI_HANDLER_BREAK;
1436                 }
1437         }
1438         else if(data->state == BUTTON_STATE_WAIT_RELEASE) {
1439                 if(event->type == LEFTMOUSE && event->val==0) {
1440                         if(!(but->flag & UI_SELECT))
1441                                 data->cancel= 1;
1442                         button_activate_state(C, but, BUTTON_STATE_EXIT);
1443                         return WM_UI_HANDLER_BREAK;
1444                 }
1445         }
1446
1447         return WM_UI_HANDLER_CONTINUE;
1448 }
1449
1450 static int ui_do_but_KEYEVT(bContext *C, uiBut *but, uiHandleButtonData *data, wmEvent *event)
1451 {
1452         if(data->state == BUTTON_STATE_HIGHLIGHT) {
1453                 if(ELEM3(event->type, LEFTMOUSE, PADENTER, RETKEY) && event->val) {
1454                         button_activate_state(C, but, BUTTON_STATE_WAIT_KEY_EVENT);
1455                         return WM_UI_HANDLER_BREAK;
1456                 }
1457         }
1458         else if(data->state == BUTTON_STATE_WAIT_KEY_EVENT) {
1459                 if(event->type == MOUSEMOVE)
1460                         return WM_UI_HANDLER_CONTINUE;
1461
1462                 if(event->val) {
1463                         if(WM_key_event_string(event->type)[0])
1464                                 ui_set_but_val(but, event->type);
1465                         else
1466                                 data->cancel= 1;
1467
1468                         button_activate_state(C, but, BUTTON_STATE_EXIT);
1469                 }
1470         }
1471
1472         return WM_UI_HANDLER_CONTINUE;
1473 }
1474
1475 static int ui_do_but_TEX(bContext *C, uiBlock *block, uiBut *but, uiHandleButtonData *data, wmEvent *event)
1476 {
1477         if(data->state == BUTTON_STATE_HIGHLIGHT) {
1478                 if(ELEM3(event->type, LEFTMOUSE, PADENTER, RETKEY) && event->val) {
1479                         button_activate_state(C, but, BUTTON_STATE_TEXT_EDITING);
1480                         return WM_UI_HANDLER_BREAK;
1481                 }
1482         }
1483         else if(data->state == BUTTON_STATE_TEXT_EDITING) {
1484                 ui_do_but_textedit(C, block, but, data, event);
1485                 return WM_UI_HANDLER_BREAK;
1486         }
1487         else if(data->state == BUTTON_STATE_TEXT_SELECTING) {
1488                 ui_do_but_textedit_select(C, block, but, data, event);
1489                 return WM_UI_HANDLER_BREAK;
1490         }
1491
1492         return WM_UI_HANDLER_CONTINUE;
1493 }
1494
1495 static int ui_do_but_TOG(bContext *C, uiBut *but, uiHandleButtonData *data, wmEvent *event)
1496 {
1497         if(data->state == BUTTON_STATE_HIGHLIGHT) {
1498                 if(ELEM3(event->type, LEFTMOUSE, PADENTER, RETKEY) && event->val) {
1499                         data->togdual= event->ctrl;
1500                         data->togonly= !event->shift;
1501                         button_activate_state(C, but, BUTTON_STATE_EXIT);
1502                         return WM_UI_HANDLER_BREAK;
1503                 }
1504         }
1505         return WM_UI_HANDLER_CONTINUE;
1506 }
1507
1508 static int ui_do_but_EXIT(bContext *C, uiBut *but, uiHandleButtonData *data, wmEvent *event)
1509 {
1510         if(data->state == BUTTON_STATE_HIGHLIGHT) {
1511                 if(ELEM3(event->type, LEFTMOUSE, PADENTER, RETKEY) && event->val) {
1512                         button_activate_state(C, but, BUTTON_STATE_EXIT);
1513                         return WM_UI_HANDLER_BREAK;
1514                 }
1515         }
1516
1517         return WM_UI_HANDLER_CONTINUE;
1518 }
1519
1520 static int ui_numedit_but_NUM(uiBut *but, uiHandleButtonData *data, float fac, int snap, int mx)
1521 {
1522         float deler, tempf;
1523         int lvalue, temp, changed= 0;
1524
1525         if(mx == data->draglastx)
1526                 return changed;
1527
1528         /* drag-lock - prevent unwanted scroll adjustments */
1529         /* change value (now 3) to adjust threshold in pixels */
1530         if(data->draglock) {
1531                 if(abs(mx-data->dragstartx) <= 3)
1532                         return changed;
1533
1534                 data->draglock= 0;
1535                 data->dragstartx= mx;  /* ignore mouse movement within drag-lock */
1536         }
1537
1538         deler= 500;
1539         if(!ui_is_but_float(but)) {
1540                 if((but->max-but->min)<100) deler= 200.0;
1541                 if((but->max-but->min)<25) deler= 50.0;
1542         }
1543         deler /= fac;
1544
1545         if(ui_is_but_float(but) && but->max-but->min > 11) {
1546                 /* non linear change in mouse input- good for high precicsion */
1547                 data->dragf+= (((float)(mx-data->draglastx))/deler) * (fabs(data->dragstartx-mx)*0.002);
1548         } else if (!ui_is_but_float(but) && but->max-but->min > 129) { /* only scale large int buttons */
1549                 /* non linear change in mouse input- good for high precicsionm ints need less fine tuning */
1550                 data->dragf+= (((float)(mx-data->draglastx))/deler) * (fabs(data->dragstartx-mx)*0.004);
1551         } else {
1552                 /*no scaling */
1553                 data->dragf+= ((float)(mx-data->draglastx))/deler ;
1554         }
1555
1556         if(data->dragf>1.0) data->dragf= 1.0;
1557         if(data->dragf<0.0) data->dragf= 0.0;
1558         data->draglastx= mx;
1559         tempf= ( but->min + data->dragf*(but->max-but->min));
1560
1561         if(!ui_is_but_float(but)) {
1562
1563                 temp= floor(tempf+.5);
1564
1565                 if(tempf==but->min || tempf==but->max);
1566                 else if(snap) {
1567                         if(snap == 2) temp= 100*(temp/100);
1568                         else temp= 10*(temp/10);
1569                 }
1570                 if( temp>=but->min && temp<=but->max) {
1571                         lvalue= (int)data->value;
1572
1573                         if(temp != lvalue ) {
1574                                 data->dragchange= 1;
1575                                 data->value= (double)temp;
1576                                 changed= 1;
1577                         }
1578                 }
1579
1580         }
1581         else {
1582                 temp= 0;
1583                 if(snap) {
1584                         if(snap == 2) {
1585                                 if(tempf==but->min || tempf==but->max);
1586                                 else if(but->max-but->min < 2.10) tempf= 0.01*floor(100.0*tempf);
1587                                 else if(but->max-but->min < 21.0) tempf= 0.1*floor(10.0*tempf);
1588                                 else tempf= floor(tempf);
1589                         }
1590                         else {
1591                                 if(tempf==but->min || tempf==but->max);
1592                                 else if(but->max-but->min < 2.10) tempf= 0.1*floor(10*tempf);
1593                                 else if(but->max-but->min < 21.0) tempf= floor(tempf);
1594                                 else tempf= 10.0*floor(tempf/10.0);
1595                         }
1596                 }
1597
1598                 if( tempf>=but->min && tempf<=but->max) {
1599                         if(tempf != data->value) {
1600                                 data->dragchange= 1;
1601                                 data->value= tempf;
1602                                 changed= 1;
1603                         }
1604                 }
1605         }
1606
1607         return changed;
1608 }
1609
1610 static int ui_do_but_NUM(bContext *C, uiBlock *block, uiBut *but, uiHandleButtonData *data, wmEvent *event)
1611 {
1612         int mx, my, click= 0;
1613         int retval= WM_UI_HANDLER_CONTINUE;
1614
1615         mx= event->x;
1616         my= event->y;
1617         ui_window_to_block(data->region, block, &mx, &my);
1618
1619         if(data->state == BUTTON_STATE_HIGHLIGHT) {
1620                 if(event->val) {
1621                         if(ELEM3(event->type, LEFTMOUSE, PADENTER, RETKEY) && event->shift) {
1622                                 button_activate_state(C, but, BUTTON_STATE_TEXT_EDITING);
1623                                 retval= WM_UI_HANDLER_BREAK;
1624                         }
1625                         else if(event->type == LEFTMOUSE) {
1626                                 data->dragstartx= mx;
1627                                 data->draglastx= mx;
1628                                 button_activate_state(C, but, BUTTON_STATE_NUM_EDITING);
1629                                 retval= WM_UI_HANDLER_BREAK;
1630                         }
1631                         else if(ELEM(event->type, PADENTER, RETKEY) && event->val)
1632                                 click= 1;
1633                 }
1634         }
1635         else if(data->state == BUTTON_STATE_NUM_EDITING) {
1636                 if(event->type == LEFTMOUSE && event->val==0) {
1637                         if(data->dragchange)
1638                                 button_activate_state(C, but, BUTTON_STATE_EXIT);
1639                         else
1640                                 click= 1;
1641                 }
1642                 else if(event->type == MOUSEMOVE) {
1643                         float fac;
1644                         int snap;
1645
1646                         fac= 1.0f;
1647                         if(event->shift) fac /= 10.0f;
1648                         if(event->alt) fac /= 20.0f;
1649
1650                         if(event->custom == EVT_DATA_TABLET) {
1651                                 wmTabletData *wmtab= event->customdata;
1652
1653                                 /* de-sensitise based on tablet pressure */
1654                                 if (ELEM(wmtab->Active, DEV_STYLUS, DEV_ERASER))
1655                                         fac *= wmtab->Pressure;
1656                         }
1657
1658                         snap= (event->ctrl)? (event->shift)? 2: 1: 0;
1659
1660                         if(ui_numedit_but_NUM(but, data, fac, snap, mx))
1661                                 ui_numedit_apply(C, block, but, data);
1662                 }
1663                 retval= WM_UI_HANDLER_BREAK;
1664         }
1665         else if(data->state == BUTTON_STATE_TEXT_EDITING) {
1666                 ui_do_but_textedit(C, block, but, data, event);
1667                 retval= WM_UI_HANDLER_BREAK;
1668         }
1669         else if(data->state == BUTTON_STATE_TEXT_SELECTING) {
1670                 ui_do_but_textedit_select(C, block, but, data, event);
1671                 retval= WM_UI_HANDLER_BREAK;
1672         }
1673
1674         if(click) {
1675                 /* we can click on the side arrows to increment/decrement,
1676                  * or click inside to edit the value directly */
1677                 float tempf;
1678                 int temp;
1679
1680                 if(!ui_is_but_float(but)) {
1681                         if(mx < (but->x1 + (but->x2 - but->x1)/3 - 3)) {
1682                                 button_activate_state(C, but, BUTTON_STATE_NUM_EDITING);
1683
1684                                 temp= (int)data->value - 1;
1685                                 if(temp>=but->min && temp<=but->max)
1686                                         data->value= (double)temp;
1687                                 else
1688                                         data->cancel= 1;
1689
1690                                 button_activate_state(C, but, BUTTON_STATE_EXIT);
1691                         }
1692                         else if(mx > (but->x1 + (2*(but->x2 - but->x1)/3) + 3)) {
1693                                 button_activate_state(C, but, BUTTON_STATE_NUM_EDITING);
1694
1695                                 temp= (int)data->value + 1;
1696                                 if(temp>=but->min && temp<=but->max)
1697                                         data->value= (double)temp;
1698                                 else
1699                                         data->cancel= 1;
1700
1701                                 button_activate_state(C, but, BUTTON_STATE_EXIT);
1702                         }
1703                         else
1704                                 button_activate_state(C, but, BUTTON_STATE_TEXT_EDITING);
1705                 }
1706                 else {
1707                         if(mx < (but->x1 + (but->x2 - but->x1)/3 - 3)) {
1708                                 button_activate_state(C, but, BUTTON_STATE_NUM_EDITING);
1709
1710                                 tempf= data->value - 0.01*but->a1;
1711                                 if (tempf < but->min) tempf = but->min;
1712                                 data->value= tempf;
1713
1714                                 button_activate_state(C, but, BUTTON_STATE_EXIT);
1715                         }
1716                         else if(mx > but->x1 + (2*((but->x2 - but->x1)/3) + 3)) {
1717                                 button_activate_state(C, but, BUTTON_STATE_NUM_EDITING);
1718
1719                                 tempf= data->value + 0.01*but->a1;
1720                                 if (tempf < but->min) tempf = but->min;
1721                                 data->value= tempf;
1722
1723                                 button_activate_state(C, but, BUTTON_STATE_EXIT);
1724                         }
1725                         else
1726                                 button_activate_state(C, but, BUTTON_STATE_TEXT_EDITING);
1727                 }
1728
1729                 retval= WM_UI_HANDLER_BREAK;
1730         }
1731
1732         return retval;
1733 }
1734
1735 static int ui_numedit_but_SLI(uiBut *but, uiHandleButtonData *data, int shift, int ctrl, int mx)
1736 {
1737         float deler, f, tempf;
1738         int temp, lvalue, changed= 0;
1739
1740         if(but->type==NUMSLI) deler= ((but->x2-but->x1)/2 - 5.0*but->aspect);
1741         else if(but->type==HSVSLI) deler= ((but->x2-but->x1)/2 - 5.0*but->aspect);
1742         else deler= (but->x2-but->x1- 5.0*but->aspect);
1743
1744         f= (float)(mx-data->dragstartx)/deler + data->dragfstart;
1745
1746         if(shift)
1747                 f= (f-data->dragfstart)/10.0 + data->dragfstart;
1748
1749         CLAMP(f, 0.0, 1.0);
1750         tempf= but->min+f*(but->max-but->min);
1751         temp= floor(tempf+.5);
1752
1753         if(ctrl) {
1754                 if(tempf==but->min || tempf==but->max);
1755                 else if(ui_is_but_float(but)) {
1756
1757                         if(shift) {
1758                                 if(tempf==but->min || tempf==but->max);
1759                                 else if(but->max-but->min < 2.10) tempf= 0.01*floor(100.0*tempf);
1760                                 else if(but->max-but->min < 21.0) tempf= 0.1*floor(10.0*tempf);
1761                                 else tempf= floor(tempf);
1762                         }
1763                         else {
1764                                 if(but->max-but->min < 2.10) tempf= 0.1*floor(10*tempf);
1765                                 else if(but->max-but->min < 21.0) tempf= floor(tempf);
1766                                 else tempf= 10.0*floor(tempf/10.0);
1767                         }
1768                 }
1769                 else {
1770                         temp= 10*(temp/10);
1771                         tempf= temp;
1772                 }
1773         }
1774
1775         if(!ui_is_but_float(but)) {
1776                 lvalue= floor(data->value+0.5);
1777
1778                 if(temp != lvalue) {
1779                         data->value= temp;
1780                         data->dragchange= 1;
1781                         changed= 1;
1782                 }
1783         }
1784         else {
1785                 if(tempf != data->value) {
1786                         data->value= tempf;
1787                         data->dragchange= 1;
1788                         changed= 1;
1789                 }
1790         }
1791
1792         return changed;
1793 }
1794
1795 static int ui_do_but_SLI(bContext *C, uiBlock *block, uiBut *but, uiHandleButtonData *data, wmEvent *event)
1796 {
1797         int mx, my, click= 0;
1798         int retval= WM_UI_HANDLER_CONTINUE;
1799
1800         mx= event->x;
1801         my= event->y;
1802         ui_window_to_block(data->region, block, &mx, &my);
1803
1804         if(data->state == BUTTON_STATE_HIGHLIGHT) {
1805                 if(ELEM3(event->type, LEFTMOUSE, PADENTER, RETKEY) && event->val) {
1806                         /* start either dragging as slider, or editing as text */
1807                         if(mx>= -6+(but->x1+but->x2)/2) {
1808                                 if(event->type == LEFTMOUSE) {
1809                                         data->dragstartx= mx;
1810                                         data->draglastx= mx;
1811                                         button_activate_state(C, but, BUTTON_STATE_NUM_EDITING);
1812                                 }
1813                                 else
1814                                         click= 1;
1815                         }
1816                         else
1817                                 button_activate_state(C, but, BUTTON_STATE_TEXT_EDITING);
1818
1819                         retval= WM_UI_HANDLER_BREAK;
1820                 }
1821         }
1822         else if(data->state == BUTTON_STATE_NUM_EDITING) {
1823                 if(event->type == LEFTMOUSE && event->val==0) {
1824                         if(data->dragchange)
1825                                 button_activate_state(C, but, BUTTON_STATE_EXIT);
1826                         else
1827                                 click= 1;
1828                 }
1829                 else if(event->type == MOUSEMOVE) {
1830                         if(ui_numedit_but_SLI(but, data, event->shift, event->ctrl, mx))
1831                                 ui_numedit_apply(C, block, but, data);
1832                 }
1833                 retval= WM_UI_HANDLER_BREAK;
1834         }
1835         else if(data->state == BUTTON_STATE_TEXT_EDITING) {
1836                 ui_do_but_textedit(C, block, but, data, event);
1837                 retval= WM_UI_HANDLER_BREAK;
1838         }
1839         else if(data->state == BUTTON_STATE_TEXT_SELECTING) {
1840                 ui_do_but_textedit_select(C, block, but, data, event);
1841                 retval= WM_UI_HANDLER_BREAK;
1842         }
1843
1844         if(click) {
1845                 float f, h;
1846                 float tempf;
1847                 int temp;
1848
1849                 button_activate_state(C, but, BUTTON_STATE_NUM_EDITING);
1850
1851                 tempf= data->value;
1852                 temp= (int)data->value;
1853
1854                 h= but->y2-but->y1;
1855
1856                 if(but->type==SLI) f= (float)(mx-but->x1)/(but->x2-but->x1-h);
1857                 else f= (float)(mx- (but->x1+but->x2)/2)/((but->x2-but->x1)/2 - h);
1858
1859                 f= but->min+f*(but->max-but->min);
1860
1861                 if(!ui_is_but_float(but)) {
1862                         if(f<temp) temp--;
1863                         else temp++;
1864
1865                         if(temp>=but->min && temp<=but->max)
1866                                 data->value= temp;
1867                         else
1868                                 data->cancel= 1;
1869                 }
1870                 else {
1871                         if(f<tempf) tempf-=.01;
1872                         else tempf+=.01;
1873
1874                         if(tempf>=but->min && tempf<=but->max)
1875                                 data->value= tempf;
1876                         else
1877                                 data->cancel= 1;
1878                 }
1879
1880                 button_activate_state(C, but, BUTTON_STATE_EXIT);
1881                 retval= WM_UI_HANDLER_BREAK;
1882         }
1883
1884         return retval;
1885 }
1886
1887 static int ui_do_but_BLOCK(bContext *C, uiBut *but, uiHandleButtonData *data, wmEvent *event)
1888 {
1889         if(data->state == BUTTON_STATE_HIGHLIGHT) {
1890                 if(ELEM3(event->type, LEFTMOUSE, PADENTER, RETKEY) && event->val) {
1891                         button_activate_state(C, but, BUTTON_STATE_MENU_OPEN);
1892                         return WM_UI_HANDLER_BREAK;
1893                 }
1894         }
1895
1896         return WM_UI_HANDLER_CONTINUE;
1897 }
1898
1899 static int ui_numedit_but_NORMAL(uiBut *but, uiHandleButtonData *data, int mx, int my)
1900 {
1901         float dx, dy, rad, radsq, mrad, *fp;
1902         int mdx, mdy, changed= 1;
1903
1904         /* button is presumed square */
1905         /* if mouse moves outside of sphere, it does negative normal */
1906
1907         fp= data->origvec;
1908         rad= (but->x2 - but->x1);
1909         radsq= rad*rad;
1910
1911         if(fp[2]>0.0f) {
1912                 mdx= (rad*fp[0]);
1913                 mdy= (rad*fp[1]);
1914         }
1915         else if(fp[2]> -1.0f) {
1916                 mrad= rad/sqrt(fp[0]*fp[0] + fp[1]*fp[1]);
1917
1918                 mdx= 2.0f*mrad*fp[0] - (rad*fp[0]);
1919                 mdy= 2.0f*mrad*fp[1] - (rad*fp[1]);
1920         }
1921         else mdx= mdy= 0;
1922
1923         dx= (float)(mx+mdx-data->dragstartx);
1924         dy= (float)(my+mdy-data->dragstarty);
1925
1926         fp= data->vec;
1927         mrad= dx*dx+dy*dy;
1928         if(mrad < radsq) {      /* inner circle */
1929                 fp[0]= dx;
1930                 fp[1]= dy;
1931                 fp[2]= sqrt( radsq-dx*dx-dy*dy );
1932         }
1933         else {  /* outer circle */
1934
1935                 mrad= rad/sqrt(mrad);   // veclen
1936
1937                 dx*= (2.0f*mrad - 1.0f);
1938                 dy*= (2.0f*mrad - 1.0f);
1939
1940                 mrad= dx*dx+dy*dy;
1941                 if(mrad < radsq) {
1942                         fp[0]= dx;
1943                         fp[1]= dy;
1944                         fp[2]= -sqrt( radsq-dx*dx-dy*dy );
1945                 }
1946         }
1947         Normalize(fp);
1948
1949         data->draglastx= mx;
1950         data->draglasty= my;
1951
1952         return changed;
1953 }
1954
1955 static int ui_do_but_NORMAL(bContext *C, uiBlock *block, uiBut *but, uiHandleButtonData *data, wmEvent *event)
1956 {
1957         int mx, my;
1958
1959         mx= event->x;
1960         my= event->y;
1961         ui_window_to_block(data->region, block, &mx, &my);
1962
1963         if(data->state == BUTTON_STATE_HIGHLIGHT) {
1964                 if(event->type==LEFTMOUSE && event->val) {
1965                         data->dragstartx= mx;
1966                         data->dragstarty= my;
1967                         data->draglastx= mx;
1968                         data->draglasty= my;
1969                         button_activate_state(C, but, BUTTON_STATE_NUM_EDITING);
1970
1971                         /* also do drag the first time */
1972                         if(ui_numedit_but_NORMAL(but, data, mx, my))
1973                                 ui_numedit_apply(C, block, but, data);
1974
1975                         return WM_UI_HANDLER_BREAK;
1976                 }
1977         }
1978         else if(data->state == BUTTON_STATE_NUM_EDITING) {
1979                 if(event->type == MOUSEMOVE) {
1980                         if(mx!=data->draglastx || my!=data->draglasty) {
1981                                 if(ui_numedit_but_NORMAL(but, data, mx, my))
1982                                         ui_numedit_apply(C, block, but, data);
1983                         }
1984                 }
1985                 else if(event->type==LEFTMOUSE && event->val==0)
1986                         button_activate_state(C, but, BUTTON_STATE_EXIT);
1987
1988                 return WM_UI_HANDLER_BREAK;
1989         }
1990
1991         return WM_UI_HANDLER_CONTINUE;
1992 }
1993
1994 static int ui_numedit_but_HSVCUBE(uiBut *but, uiHandleButtonData *data, int mx, int my)
1995 {
1996         float x, y;
1997         int changed= 1;
1998
1999         /* relative position within box */
2000         x= ((float)mx-but->x1)/(but->x2-but->x1);
2001         y= ((float)my-but->y1)/(but->y2-but->y1);
2002         CLAMP(x, 0.0, 1.0);
2003         CLAMP(y, 0.0, 1.0);
2004
2005         if(but->a1==0) {
2006                 but->hsv[0]= x;
2007                 but->hsv[2]= y;
2008         }
2009         else if(but->a1==1) {
2010                 but->hsv[0]= x;
2011                 but->hsv[1]= y;
2012         }
2013         else if(but->a1==2) {
2014                 but->hsv[2]= x;
2015                 but->hsv[1]= y;
2016         }
2017         else
2018                 but->hsv[0]= x;
2019
2020         ui_set_but_hsv(but);    // converts to rgb
2021
2022         // update button values and strings
2023         ui_update_block_buts_hsv(but->block, but->hsv);
2024
2025         data->draglastx= mx;
2026         data->draglasty= my;
2027
2028         return changed;
2029 }
2030
2031 static int ui_do_but_HSVCUBE(bContext *C, uiBlock *block, uiBut *but, uiHandleButtonData *data, wmEvent *event)
2032 {
2033         int mx, my;
2034
2035         mx= event->x;
2036         my= event->y;
2037         ui_window_to_block(data->region, block, &mx, &my);
2038
2039         if(data->state == BUTTON_STATE_HIGHLIGHT) {
2040                 if(event->type==LEFTMOUSE && event->val) {
2041                         data->dragstartx= mx;
2042                         data->dragstarty= my;
2043                         data->draglastx= mx;
2044                         data->draglasty= my;
2045                         button_activate_state(C, but, BUTTON_STATE_NUM_EDITING);
2046
2047                         /* also do drag the first time */
2048                         if(ui_numedit_but_HSVCUBE(but, data, mx, my))
2049                                 ui_numedit_apply(C, block, but, data);
2050
2051                         return WM_UI_HANDLER_BREAK;
2052                 }
2053         }
2054         else if(data->state == BUTTON_STATE_NUM_EDITING) {
2055                 if(event->type == MOUSEMOVE) {
2056                         if(mx!=data->draglastx || my!=data->draglasty) {
2057                                 if(ui_numedit_but_HSVCUBE(but, data, mx, my))
2058                                         ui_numedit_apply(C, block, but, data);
2059                         }
2060                 }
2061                 else if(event->type==LEFTMOUSE && event->val==0)
2062                         button_activate_state(C, but, BUTTON_STATE_EXIT);
2063
2064                 return WM_UI_HANDLER_BREAK;
2065         }
2066
2067         return WM_UI_HANDLER_CONTINUE;
2068 }
2069
2070 static int verg_colorband(const void *a1, const void *a2)
2071 {
2072         const CBData *x1=a1, *x2=a2;
2073
2074         if( x1->pos > x2->pos ) return 1;
2075         else if( x1->pos < x2->pos) return -1;
2076         return WM_UI_HANDLER_CONTINUE;
2077 }
2078
2079 static void ui_colorband_update(ColorBand *coba)
2080 {
2081         int a;
2082
2083         if(coba->tot<2) return;
2084
2085         for(a=0; a<coba->tot; a++) coba->data[a].cur= a;
2086                 qsort(coba->data, coba->tot, sizeof(CBData), verg_colorband);
2087         for(a=0; a<coba->tot; a++) {
2088                 if(coba->data[a].cur==coba->cur) {
2089                         coba->cur= a;
2090                         break;
2091                 }
2092         }
2093 }
2094
2095 static int ui_numedit_but_COLORBAND(uiBut *but, uiHandleButtonData *data, int mx)
2096 {
2097         float dx;
2098         int changed= 0;
2099
2100         if(data->draglastx == mx)
2101                 return changed;
2102
2103         dx= ((float)(mx - data->draglastx))/(but->x2-but->x1);
2104         data->dragcbd->pos += dx;
2105         CLAMP(data->dragcbd->pos, 0.0, 1.0);
2106
2107         ui_colorband_update(data->coba);
2108         data->dragcbd= data->coba->data + data->coba->cur;      /* because qsort */
2109
2110         data->draglastx= mx;
2111         changed= 1;
2112
2113         return changed;
2114 }
2115
2116 static int ui_do_but_COLORBAND(bContext *C, uiBlock *block, uiBut *but, uiHandleButtonData *data, wmEvent *event)
2117 {
2118         ColorBand *coba;
2119         CBData *cbd;
2120         int mx, my, a, xco, mindist= 12;
2121
2122         mx= event->x;
2123         my= event->y;
2124         ui_window_to_block(data->region, block, &mx, &my);
2125
2126         if(data->state == BUTTON_STATE_HIGHLIGHT) {
2127                 if(event->type==LEFTMOUSE && event->val) {
2128                         coba= (ColorBand*)but->poin;
2129
2130                         if(event->ctrl) {
2131                                 /* insert new key on mouse location */
2132                                 if(coba->tot < MAXCOLORBAND-1) {
2133                                         float pos= ((float)(mx - but->x1))/(but->x2-but->x1);
2134                                         float col[4];
2135
2136                                         do_colorband(coba, pos, col);   /* executes it */
2137
2138                                         coba->tot++;
2139                                         coba->cur= coba->tot-1;
2140
2141                                         coba->data[coba->cur].r= col[0];
2142                                         coba->data[coba->cur].g= col[1];
2143                                         coba->data[coba->cur].b= col[2];
2144                                         coba->data[coba->cur].a= col[3];
2145                                         coba->data[coba->cur].pos= pos;
2146
2147                                         ui_colorband_update(coba);
2148                                 }
2149
2150                                 button_activate_state(C, but, BUTTON_STATE_EXIT);
2151                         }
2152                         else {
2153                                 data->dragstartx= mx;
2154                                 data->dragstarty= my;
2155                                 data->draglastx= mx;
2156                                 data->draglasty= my;
2157
2158                                 /* activate new key when mouse is close */
2159                                 for(a=0, cbd= coba->data; a<coba->tot; a++, cbd++) {
2160                                         xco= but->x1 + (cbd->pos*(but->x2-but->x1));
2161                                         xco= ABS(xco-mx);
2162                                         if(a==coba->cur) xco+= 5; // selected one disadvantage
2163                                         if(xco<mindist) {
2164                                                 coba->cur= a;
2165                                                 mindist= xco;
2166                                         }
2167                                 }
2168
2169                                 data->dragcbd= coba->data + coba->cur;
2170                                 button_activate_state(C, but, BUTTON_STATE_NUM_EDITING);
2171                         }
2172
2173                         return WM_UI_HANDLER_BREAK;
2174                 }
2175         }
2176         else if(data->state == BUTTON_STATE_NUM_EDITING) {
2177                 if(event->type == MOUSEMOVE) {
2178                         if(mx!=data->draglastx || my!=data->draglasty) {
2179                                 if(ui_numedit_but_COLORBAND(but, data, mx))
2180                                         ui_numedit_apply(C, block, but, data);
2181                         }
2182                 }
2183                 else if(event->type==LEFTMOUSE && event->val==0)
2184                         button_activate_state(C, but, BUTTON_STATE_EXIT);
2185
2186                 return WM_UI_HANDLER_BREAK;
2187         }
2188
2189         return WM_UI_HANDLER_CONTINUE;
2190 }
2191
2192 static int ui_numedit_but_CURVE(uiBut *but, uiHandleButtonData *data, int snap, int mx, int my)
2193 {
2194         CurveMapping *cumap= data->cumap;
2195         CurveMap *cuma= cumap->cm+cumap->cur;
2196         CurveMapPoint *cmp= cuma->curve;
2197         float fx, fy, zoomx, zoomy, offsx, offsy;
2198         int a, changed= 0;
2199
2200         zoomx= (but->x2-but->x1)/(cumap->curr.xmax-cumap->curr.xmin);
2201         zoomy= (but->y2-but->y1)/(cumap->curr.ymax-cumap->curr.ymin);
2202         offsx= cumap->curr.xmin;
2203         offsy= cumap->curr.ymin;
2204
2205         if(data->dragsel != -1) {
2206                 int moved_point= 0;             /* for ctrl grid, can't use orig coords because of sorting */
2207
2208                 fx= (mx-data->draglastx)/zoomx;
2209                 fy= (my-data->draglasty)/zoomy;
2210                 for(a=0; a<cuma->totpoint; a++) {
2211                         if(cmp[a].flag & SELECT) {
2212                                 float origx= cmp[a].x, origy= cmp[a].y;
2213                                 cmp[a].x+= fx;
2214                                 cmp[a].y+= fy;
2215                                 if(snap) {
2216                                         cmp[a].x= 0.125f*floor(0.5f + 8.0f*cmp[a].x);
2217                                         cmp[a].y= 0.125f*floor(0.5f + 8.0f*cmp[a].y);
2218                                 }
2219                                 if(cmp[a].x!=origx || cmp[a].y!=origy)
2220                                         moved_point= 1;
2221                         }
2222                 }
2223
2224                 curvemapping_changed(cumap, 0); /* no remove doubles */
2225
2226                 if(moved_point) {
2227                         data->draglastx= mx;
2228                         data->draglasty= my;
2229                         changed= 1;
2230                 }
2231
2232                 data->dragchange= 1; /* mark for selection */
2233         }
2234         else {
2235                 fx= (mx-data->draglastx)/zoomx;
2236                 fy= (my-data->draglasty)/zoomy;
2237
2238                 /* clamp for clip */
2239                 if(cumap->flag & CUMA_DO_CLIP) {
2240                         if(cumap->curr.xmin-fx < cumap->clipr.xmin)
2241                                 fx= cumap->curr.xmin - cumap->clipr.xmin;
2242                         else if(cumap->curr.xmax-fx > cumap->clipr.xmax)
2243                                 fx= cumap->curr.xmax - cumap->clipr.xmax;
2244                         if(cumap->curr.ymin-fy < cumap->clipr.ymin)
2245                                 fy= cumap->curr.ymin - cumap->clipr.ymin;
2246                         else if(cumap->curr.ymax-fy > cumap->clipr.ymax)
2247                                 fy= cumap->curr.ymax - cumap->clipr.ymax;
2248                 }
2249
2250                 cumap->curr.xmin-=fx;
2251                 cumap->curr.ymin-=fy;
2252                 cumap->curr.xmax-=fx;
2253                 cumap->curr.ymax-=fy;
2254
2255                 data->draglastx= mx;
2256                 data->draglasty= my;
2257
2258                 changed= 1;
2259         }
2260
2261         return changed;
2262 }
2263
2264 static int ui_do_but_CURVE(bContext *C, uiBlock *block, uiBut *but, uiHandleButtonData *data, wmEvent *event)
2265 {
2266         int mx, my, a, changed= 0;
2267
2268         mx= event->x;
2269         my= event->y;
2270         ui_window_to_block(data->region, block, &mx, &my);
2271
2272         if(data->state == BUTTON_STATE_HIGHLIGHT) {
2273                 if(event->type==LEFTMOUSE && event->val) {
2274                         CurveMapping *cumap= (CurveMapping*)but->poin;
2275                         CurveMap *cuma= cumap->cm+cumap->cur;
2276                         CurveMapPoint *cmp= cuma->curve;
2277                         float fx, fy, zoomx, zoomy, offsx, offsy;
2278                         float dist, mindist= 200.0f; // 14 pixels radius
2279                         int sel= -1;
2280
2281                         zoomx= (but->x2-but->x1)/(cumap->curr.xmax-cumap->curr.xmin);
2282                         zoomy= (but->y2-but->y1)/(cumap->curr.ymax-cumap->curr.ymin);
2283                         offsx= cumap->curr.xmin;
2284                         offsy= cumap->curr.ymin;
2285
2286                         if(event->ctrl) {
2287                                 fx= ((float)my - but->x1)/zoomx + offsx;
2288                                 fy= ((float)my - but->y1)/zoomy + offsy;
2289
2290                                 curvemap_insert(cuma, fx, fy);
2291                                 curvemapping_changed(cumap, 0);
2292                                 changed= 1;
2293                         }
2294
2295                         /* check for selecting of a point */
2296                         cmp= cuma->curve;       /* ctrl adds point, new malloc */
2297                         for(a=0; a<cuma->totpoint; a++) {
2298                                 fx= but->x1 + zoomx*(cmp[a].x-offsx);
2299                                 fy= but->y1 + zoomy*(cmp[a].y-offsy);
2300                                 dist= (fx-mx)*(fx-mx) + (fy-my)*(fy-my);
2301                                 if(dist < mindist) {
2302                                         sel= a;
2303                                         mindist= dist;
2304                                 }
2305                         }
2306
2307                         if (sel == -1) {
2308                                 /* if the click didn't select anything, check if it's clicked on the
2309                                  * curve itself, and if so, add a point */
2310                                 fx= ((float)mx - but->x1)/zoomx + offsx;
2311                                 fy= ((float)my - but->y1)/zoomy + offsy;
2312
2313                                 cmp= cuma->table;
2314
2315                                 /* loop through the curve segment table and find what's near the mouse.
2316                                  * 0.05 is kinda arbitrary, but seems to be what works nicely. */
2317                                 for(a=0; a<=CM_TABLE; a++) {
2318                                         if ( ( fabs(fx - cmp[a].x) < (0.05) ) && ( fabs(fy - cmp[a].y) < (0.05) ) ) {
2319
2320                                                 curvemap_insert(cuma, fx, fy);
2321                                                 curvemapping_changed(cumap, 0);
2322
2323                                                 changed= 1;
2324
2325                                                 /* reset cmp back to the curve points again, rather than drawing segments */
2326                                                 cmp= cuma->curve;
2327
2328                                                 /* find newly added point and make it 'sel' */
2329                                                 for(a=0; a<cuma->totpoint; a++)
2330                                                         if(cmp[a].x == fx)
2331                                                                 sel = a;
2332
2333                                                 break;
2334                                         }
2335                                 }
2336                         }
2337
2338                         if(sel!= -1) {
2339                                 /* ok, we move a point */
2340                                 /* deselect all if this one is deselect. except if we hold shift */
2341                                 if(event->shift==0 && (cmp[sel].flag & SELECT)==0)
2342                                         for(a=0; a<cuma->totpoint; a++)
2343                                                 cmp[a].flag &= ~SELECT;
2344                                 cmp[sel].flag |= SELECT;
2345                         }
2346                         else {
2347                                 /* move the view */
2348                                 data->cancel= 1;
2349                         }
2350
2351                         data->dragsel= sel;
2352
2353                         data->dragstartx= mx;
2354                         data->dragstarty= my;
2355                         data->draglastx= mx;
2356                         data->draglasty= my;
2357
2358                         button_activate_state(C, but, BUTTON_STATE_NUM_EDITING);
2359                         return WM_UI_HANDLER_BREAK;
2360                 }
2361         }
2362         else if(data->state == BUTTON_STATE_NUM_EDITING) {
2363                 if(event->type == MOUSEMOVE) {
2364                         if(mx!=data->draglastx || my!=data->draglasty) {
2365                                 if(ui_numedit_but_CURVE(but, data, event->shift, mx, my))
2366                                         ui_numedit_apply(C, block, but, data);
2367                         }
2368                 }
2369                 else if(event->type==LEFTMOUSE && event->val==0) {
2370                         if(data->dragsel != -1) {
2371                                 CurveMapping *cumap= data->cumap;
2372                                 CurveMap *cuma= cumap->cm+cumap->cur;
2373                                 CurveMapPoint *cmp= cuma->curve;
2374
2375                                 if(!data->dragchange) {
2376                                         /* deselect all, select one */
2377                                         if(event->shift==0) {
2378                                                 for(a=0; a<cuma->totpoint; a++)
2379                                                         cmp[a].flag &= ~SELECT;
2380                                                 cmp[data->dragsel].flag |= SELECT;
2381                                         }
2382                                 }
2383                                 else
2384                                         curvemapping_changed(cumap, 1); /* remove doubles */
2385                         }
2386
2387                         button_activate_state(C, but, BUTTON_STATE_EXIT);
2388                 }
2389
2390                 return WM_UI_HANDLER_BREAK;
2391         }
2392
2393         return WM_UI_HANDLER_CONTINUE;
2394 }
2395
2396 #ifdef INTERNATIONAL
2397 static int ui_do_but_CHARTAB(bContext *C, uiBlock *block, uiBut *but, uiHandleButtonData *data, wmEvent *event)
2398 {
2399         /* XXX 2.50 bad global and state access */
2400 #if 0
2401         float sx, sy, ex, ey;
2402         float width, height;
2403         float butw, buth;
2404         int mx, my, x, y, cs, che;
2405
2406         mx= event->x;
2407         my= event->y;
2408         ui_window_to_block(data->region, block, &mx, &my);
2409
2410         if(data->state == BUTTON_STATE_HIGHLIGHT) {
2411                 if(ELEM3(event->type, LEFTMOUSE, PADENTER, RETKEY) && event->val) {
2412                         /* Calculate the size of the button */
2413                         width = abs(but->x2 - but->x1);
2414                         height = abs(but->y2 - but->y1);
2415
2416                         butw = floor(width / 12);
2417                         buth = floor(height / 6);
2418
2419                         /* Initialize variables */
2420                         sx = but->x1;
2421                         ex = but->x1 + butw;
2422                         sy = but->y1 + height - buth;
2423                         ey = but->y1 + height;
2424
2425                         cs = G.charstart;
2426
2427                         /* And the character is */
2428                         x = (int) ((mx / butw) - 0.5);
2429                         y = (int) (6 - ((my / buth) - 0.5));
2430
2431                         che = cs + (y*12) + x;
2432
2433                         if(che > G.charmax)
2434                                 che = 0;
2435
2436                         if(G.obedit)
2437                         {
2438                                 do_textedit(0,0,che);
2439                         }
2440
2441                         button_activate_state(C, but, BUTTON_STATE_EXIT);
2442                         return WM_UI_HANDLER_BREAK;
2443                 }
2444                 else if(ELEM(event->type, WHEELUPMOUSE, PAGEUPKEY)) {
2445                         for(but= block->buttons.first; but; but= but->next) {
2446                                 if(but->type == CHARTAB) {
2447                                         G.charstart = G.charstart - (12*6);
2448                                         if(G.charstart < 0)
2449                                                 G.charstart = 0;
2450                                         if(G.charstart < G.charmin)
2451                                                 G.charstart = G.charmin;
2452                                         ui_draw_but(but);
2453
2454                                         //Really nasty... to update the num button from the same butblock
2455                                         for(bt= block->buttons.first; bt; bt= bt->next)
2456                                         {
2457                                                 if(ELEM(bt->type, NUM, NUMABS)) {
2458                                                         ui_check_but(bt);
2459                                                         ui_draw_but(bt);
2460                                                 }
2461                                         }
2462                                         retval=UI_CONT;
2463                                         break;
2464                                 }
2465                         }
2466
2467                         return WM_UI_HANDLER_BREAK;
2468                 }
2469                 else if(ELEM(event->type, WHEELDOWNMOUSE, PAGEDOWNKEY)) {
2470                         for(but= block->buttons.first; but; but= but->next)
2471                         {
2472                                 if(but->type == CHARTAB)
2473                                 {
2474                                         G.charstart = G.charstart + (12*6);
2475                                         if(G.charstart > (0xffff - 12*6))
2476                                                 G.charstart = 0xffff - (12*6);
2477                                         if(G.charstart > G.charmax - 12*6)
2478                                                 G.charstart = G.charmax - 12*6;
2479                                         ui_draw_but(but);
2480
2481                                         for(bt= block->buttons.first; bt; bt= bt->next)
2482                                         {
2483                                                 if(ELEM(bt->type, NUM, NUMABS)) {
2484                                                         ui_check_but(bt);
2485                                                         ui_draw_but(bt);
2486                                                 }
2487                                         }
2488
2489                                         but->flag |= UI_ACTIVE;
2490                                         retval=UI_RETURN_OK;
2491                                         break;
2492                                 }
2493                         }
2494
2495                         return WM_UI_HANDLER_BREAK;
2496                 }
2497         }
2498 #endif
2499
2500         return WM_UI_HANDLER_CONTINUE;
2501 }
2502 #endif
2503
2504 static int ui_do_button(bContext *C, uiBlock *block, uiBut *but, wmEvent *event)
2505 {
2506         uiHandleButtonData *data;
2507         int retval;
2508
2509         data= but->active;
2510         retval= WM_UI_HANDLER_CONTINUE;
2511
2512         /* handle copy-paste */
2513         if(data->state == BUTTON_STATE_HIGHLIGHT) {
2514                 if(ELEM(event->type, CKEY, VKEY) && event->val && (event->ctrl || event->oskey)) {
2515                         ui_but_copy_paste(C, but, data, (event->type == CKEY)? 'c': 'v');
2516                         return WM_UI_HANDLER_BREAK;
2517                 }
2518         }
2519
2520         /* verify if we can edit this button */
2521         if(ELEM(event->type, LEFTMOUSE, RETKEY)) {
2522                 if(but->lock) {
2523                         if(but->lockstr) {
2524                                 WM_report(C, WM_LOG_WARNING, but->lockstr);
2525                                 button_activate_state(C, but, BUTTON_STATE_EXIT);
2526                                 return WM_UI_HANDLER_BREAK;
2527                         }
2528                 }
2529                 else if(but->pointype && but->poin==0) {
2530                         /* there's a pointer needed */
2531                         WM_reportf(C, WM_LOG_WARNING, "DoButton pointer error: %s", but->str);
2532                         button_activate_state(C, but, BUTTON_STATE_EXIT);
2533                         return WM_UI_HANDLER_BREAK;
2534                 }
2535         }
2536
2537         switch(but->type) {
2538         case BUT:
2539                 retval= ui_do_but_BUT(C, but, data, event);
2540                 break;
2541         case KEYEVT:
2542                 retval= ui_do_but_KEYEVT(C, but, data, event);
2543                 break;
2544         case TOG:
2545         case TOGR:
2546         case ICONTOG:
2547         case ICONTOGN:
2548         case TOGN:
2549         case BUT_TOGDUAL:
2550                 retval= ui_do_but_TOG(C, but, data, event);
2551                 break;
2552 #if 0
2553         case SCROLL:
2554                 /* DrawBut(b, 1); */
2555                 /* do_scrollbut(b); */
2556                 /* DrawBut(b,0); */
2557                 break;
2558 #endif
2559         case NUM:
2560         case NUMABS:
2561                 retval= ui_do_but_NUM(C, block, but, data, event);
2562                 break;
2563         case SLI:
2564         case NUMSLI:
2565         case HSVSLI:
2566                 retval= ui_do_but_SLI(C, block, but, data, event);
2567                 break;
2568         case ROUNDBOX:
2569         case LABEL:
2570         case TOG3:
2571         case ROW:
2572                 retval= ui_do_but_EXIT(C, but, data, event);
2573                 break;
2574         case TEX:
2575         case IDPOIN:
2576                 retval= ui_do_but_TEX(C, block, but, data, event);
2577                 break;
2578         case MENU:
2579                 retval= ui_do_but_BLOCK(C, but, data, event);
2580                 break;
2581         case ICONROW:
2582                 retval= ui_do_but_BLOCK(C, but, data, event);
2583                 break;
2584         case ICONTEXTROW:
2585                 retval= ui_do_but_BLOCK(C, but, data, event);
2586                 break;
2587         case BLOCK:
2588         case PULLDOWN:
2589                 retval= ui_do_but_BLOCK(C, but, data, event);
2590                 break;
2591         case BUTM:
2592                 retval= ui_do_but_BUT(C, but, data, event);
2593                 break;
2594         case COL:
2595                 if(but->a1 == -1)  // signal to prevent calling up color picker
2596                         retval= ui_do_but_EXIT(C, but, data, event);
2597                 else
2598                         retval= ui_do_but_BLOCK(C, but, data, event);
2599                 break;
2600         case BUT_NORMAL:
2601                 retval= ui_do_but_NORMAL(C, block, but, data, event);
2602                 break;
2603         case BUT_COLORBAND:
2604                 retval= ui_do_but_COLORBAND(C, block, but, data, event);
2605                 break;
2606         case BUT_CURVE:
2607                 retval= ui_do_but_CURVE(C, block, but, data, event);
2608                 break;
2609         case HSVCUBE:
2610                 retval= ui_do_but_HSVCUBE(C, block, but, data, event);
2611                 break;
2612 #ifdef INTERNATIONAL
2613         case CHARTAB:
2614                 retval= ui_do_but_CHARTAB(C, block, but, data, event);
2615                 break;
2616 #endif
2617         /* XXX 2.50 links not implemented yet */
2618 #if 0
2619         case LINK:
2620         case INLINK:
2621                 retval= retval= ui_do_but_LINK(block, but);
2622                 break;
2623 #endif
2624         }
2625
2626         return retval;
2627 }
2628
2629 /* ************************ button utilities *********************** */
2630
2631 static int ui_but_contains_pt(uiBut *but, int mx, int my)
2632 {
2633         return ((but->x1<mx && but->x2>=mx) && (but->y1<my && but->y2>=my));
2634 }
2635
2636 static uiBut *ui_but_find_activated(ARegion *ar)
2637 {
2638         uiBlock *block;
2639         uiBut *but;
2640
2641         for(block=ar->uiblocks.first; block; block=block->next)
2642                 for(but=block->buttons.first; but; but= but->next)
2643                         if(but->active)
2644                                 return but;
2645
2646         return NULL;
2647 }
2648
2649 static void ui_blocks_set_tooltips(ARegion *ar, int enable)
2650 {
2651         uiBlock *block;
2652
2653         if(!ar)
2654                 return;
2655
2656         /* we disabled buttons when when they were already shown, and
2657          * re-enable them on mouse move */
2658         for(block=ar->uiblocks.first; block; block=block->next)
2659                 block->tooltipdisabled= !enable;
2660 }
2661
2662 static uiBut *ui_but_find_mouse_over(ARegion *ar, int x, int y)
2663 {
2664         uiBlock *block;
2665         uiBut *but, *butover= NULL;
2666         int mx, my;
2667
2668         /* check if the mouse is in the region, and in case of a view2d also check
2669          * if it is inside the view2d itself, not over scrollbars for example */
2670         if(!BLI_in_rcti(&ar->winrct, x, y)) {
2671                 for(block=ar->uiblocks.first; block; block=block->next)
2672                         block->auto_open= 0;
2673
2674                 return NULL;
2675         }
2676
2677         if(ar->v2d.mask.xmin!=ar->v2d.mask.xmax) {
2678                 mx= x;
2679                 my= y;
2680                 ui_window_to_region(ar, &mx, &my);
2681
2682                 if(!BLI_in_rcti(&ar->v2d.mask, mx, my))
2683                         return NULL;
2684         }
2685
2686         for(block=ar->uiblocks.first; block; block=block->next) {
2687                 mx= x;
2688                 my= y;
2689                 ui_window_to_block(ar, block, &mx, &my);
2690
2691                 for(but=block->buttons.first; but; but= but->next) {
2692                         /* give precedence to already activated buttons */
2693                         if(ui_but_contains_pt(but, mx, my))
2694                                 if(!butover || (!butover->active && but->active))
2695                                         butover= but;
2696                 }
2697         }
2698
2699         return butover;
2700 }
2701
2702 /* ****************** button state handling **************************/
2703
2704 static int button_modal_state(uiHandleButtonState state)
2705 {
2706         return ELEM6(state, BUTTON_STATE_WAIT_RELEASE, BUTTON_STATE_WAIT_KEY_EVENT,
2707                 BUTTON_STATE_NUM_EDITING, BUTTON_STATE_TEXT_EDITING,
2708                 BUTTON_STATE_TEXT_SELECTING, BUTTON_STATE_MENU_OPEN);
2709 }
2710
2711 static void button_tooltip_timer_reset(uiBut *but)
2712 {
2713         uiHandleButtonData *data;
2714
2715         data= but->active;
2716
2717         if(data->tooltiptimer) {
2718                 WM_event_remove_window_timer(data->window, data->tooltiptimer);
2719                 data->tooltiptimer= NULL;
2720         }
2721
2722         if(U.flag & USER_TOOLTIPS)
2723                 if(!but->block->tooltipdisabled)
2724                         data->tooltiptimer= WM_event_add_window_timer(data->window, BUTTON_TOOLTIP_DELAY, ~0);
2725 }
2726
2727 static void button_activate_state(bContext *C, uiBut *but, uiHandleButtonState state)
2728 {
2729         uiHandleButtonData *data;
2730
2731         data= but->active;
2732         if(data->state == state)
2733                 return;
2734
2735         /* highlight has timers for tooltips and auto open */
2736         if(state == BUTTON_STATE_HIGHLIGHT) {
2737                 but->flag &= ~UI_SELECT;
2738
2739                 button_tooltip_timer_reset(but);
2740
2741                 /* automatic open pulldown block timer */
2742                 if(but->type==BLOCK || but->type==MENU || but->type==PULLDOWN || but->type==ICONTEXTROW) {
2743                         if(!data->autoopentimer) {
2744                                 int time;
2745
2746                                 if(but->block->auto_open==2) time= 1;    // test for toolbox
2747                                 else if(but->block->flag & UI_BLOCK_LOOP || but->block->auto_open) time= 5*U.menuthreshold2;
2748                                 else if(U.uiflag & USER_MENUOPENAUTO) time= 5*U.menuthreshold1;
2749                                 else time= -1;
2750
2751                                 if(time >= 0)
2752                                         data->autoopentimer= WM_event_add_window_timer(data->window, time*20, ~0);
2753                         }
2754                 }
2755         }
2756         else {
2757                 but->flag |= UI_SELECT;
2758
2759                 if(data->tooltiptimer) {
2760                         WM_event_remove_window_timer(data->window, data->tooltiptimer);
2761                         data->tooltiptimer= NULL;
2762                 }
2763                 if(data->tooltip) {
2764                         ui_tooltip_free(C, data->tooltip);
2765                         data->tooltip= NULL;
2766                 }
2767
2768                 if(data->autoopentimer) {
2769                         WM_event_remove_window_timer(data->window, data->autoopentimer);
2770                         data->autoopentimer= NULL;
2771                 }
2772         }
2773
2774         /* text editing */
2775         if(state == BUTTON_STATE_TEXT_EDITING && data->state != BUTTON_STATE_TEXT_SELECTING)
2776                 ui_textedit_begin(but, data);
2777         else if(data->state == BUTTON_STATE_TEXT_EDITING && state != BUTTON_STATE_TEXT_SELECTING)
2778                 ui_textedit_end(but, data);
2779
2780         /* number editing */
2781         if(state == BUTTON_STATE_NUM_EDITING)
2782                 ui_numedit_begin(but, data);
2783         else if(data->state == BUTTON_STATE_NUM_EDITING)
2784                 ui_numedit_end(but, data);
2785
2786         /* menu open */
2787         if(state == BUTTON_STATE_MENU_OPEN)
2788                 ui_blockopen_begin(C, but, data);
2789         else if(data->state == BUTTON_STATE_MENU_OPEN)
2790                 ui_blockopen_end(C, but, data);
2791
2792         /* add a short delay before exiting, to ensure there is some feedback */
2793         if(state == BUTTON_STATE_WAIT_FLASH) {
2794                 data->flashtimer= WM_event_add_window_timer(data->window, BUTTON_FLASH_DELAY, ~0);
2795         }
2796         else if(data->flashtimer) {
2797                 WM_event_remove_window_timer(data->window, data->flashtimer);
2798                 data->flashtimer= NULL;
2799         }
2800
2801         /* add a blocking ui handler at the window handler for blocking, modal states
2802          * but not for popups, because we already have a window level handler*/
2803         if(!(but->block->handle && but->block->handle->popup)) {
2804                 if(button_modal_state(state)) {
2805                         if(!button_modal_state(data->state))
2806                                 WM_event_add_ui_handler(C, &data->window->handlers, ui_handler_region_menu, NULL, data);
2807                 }
2808                 else {
2809                         if(button_modal_state(data->state))
2810                                 WM_event_remove_ui_handler(&data->window->handlers, ui_handler_region_menu, NULL, data);
2811                 }
2812         }
2813
2814         data->state= state;
2815
2816         /* redraw */
2817         ED_region_tag_redraw(data->region);
2818 }
2819
2820 static void button_activate_init(bContext *C, ARegion *ar, uiBut *but, uiButtonActivateType type)
2821 {
2822         uiHandleButtonData *data;
2823
2824         /* setup struct */
2825         data= MEM_callocN(sizeof(uiHandleButtonData), "uiHandleButtonData");
2826         data->window= C->window;
2827         data->region= ar;
2828         data->interactive= 0;
2829         data->state = BUTTON_STATE_INIT;
2830
2831         /* activate button */
2832         but->flag |= UI_ACTIVE;
2833         but->active= data;
2834
2835         /* we disable auto_open in the block after a threshold, because we still
2836          * want to allow auto opening adjacent menus even if no button is activated
2837          * inbetween going over to the other button, but only for a short while */
2838         if(type == BUTTON_ACTIVATE_OVER && but->block->auto_open)
2839                 if(but->block->auto_open_last+BUTTON_AUTO_OPEN_THRESH < PIL_check_seconds_timer())
2840                         but->block->auto_open= 0;
2841
2842         button_activate_state(C, but, BUTTON_STATE_HIGHLIGHT);
2843
2844         if(type == BUTTON_ACTIVATE_OPEN)
2845                 button_activate_state(C, but, BUTTON_STATE_MENU_OPEN);
2846         else if(type == BUTTON_ACTIVATE_TEXT_EDITING)
2847                 button_activate_state(C, but, BUTTON_STATE_TEXT_EDITING);
2848         else if(type == BUTTON_ACTIVATE_APPLY)
2849                 button_activate_state(C, but, BUTTON_STATE_WAIT_FLASH);
2850 }
2851
2852 static void button_activate_exit(bContext *C, uiHandleButtonData *data, uiBut *but, int mousemove)
2853 {
2854         uiBlock *block= but->block;
2855
2856         /* ensure we are in the exit state */
2857         if(data->state != BUTTON_STATE_EXIT)
2858                 button_activate_state(C, but, BUTTON_STATE_EXIT);
2859
2860         /* apply the button action or value */
2861         ui_apply_button(C, block, but, data, 0);
2862
2863         /* if this button is in a menu, this will set the button return
2864          * value to the button value and the menu return value to ok, the
2865          * menu return value will be picked up and the menu will close */
2866         if(block->handle && !(block->flag & UI_BLOCK_KEEP_OPEN) && !data->cancel) {
2867                 uiMenuBlockHandle *menu;
2868
2869                 menu= block->handle;
2870                 menu->butretval= data->retval;
2871                 menu->menuretval= UI_RETURN_OK;
2872         }
2873
2874         /* disable tooltips until mousemove */
2875         ui_blocks_set_tooltips(data->region, 0);
2876
2877         /* clean up */
2878         if(data->str)
2879                 MEM_freeN(data->str);
2880         if(data->origstr)
2881                 MEM_freeN(data->origstr);
2882
2883         /* clean up button */
2884         MEM_freeN(but->active);
2885         but->active= NULL;
2886         but->flag &= ~(UI_ACTIVE|UI_SELECT);
2887
2888         /* redraw */
2889         ED_region_tag_redraw(data->region);
2890
2891         /* adds empty mousemove in queue for re-init handler, in case mouse is
2892          * still over a button. we cannot just check for this ourselfs because
2893          * at this point the mouse may be over a button in another region */
2894         if(mousemove)
2895                 WM_event_add_mousemove(C);
2896 }
2897
2898 void ui_button_active_cancel(const bContext *C, uiBut *but)
2899 {
2900         uiHandleButtonData *data;
2901
2902         /* this gets called when the button somehow disappears while it is still
2903          * active, this is bad for user interaction, but we need to handle this
2904          * case cleanly anyway in case it happens */
2905         if(but->active) {
2906                 data= but->active;
2907                 data->cancel= 1;
2908                 button_activate_exit((bContext*)C, data, but, 0);
2909         }
2910 }
2911
2912 /************** handle activating a button *************/
2913
2914 static int ui_handle_button_over(bContext *C, wmEvent *event, ARegion *ar)
2915 {
2916         uiBut *but;
2917
2918         if(event->type == MOUSEMOVE) {
2919                 but= ui_but_find_mouse_over(ar, event->x, event->y);
2920
2921                 if(but)
2922                         button_activate_init(C, ar, but, BUTTON_ACTIVATE_OVER);
2923         }
2924
2925         return WM_UI_HANDLER_CONTINUE;
2926 }
2927
2928 static void ui_handle_button_activate(bContext *C, ARegion *ar, uiBut *but, uiButtonActivateType type)
2929 {
2930         uiBut *oldbut;
2931         uiHandleButtonData *data;
2932
2933         oldbut= ui_but_find_activated(ar);
2934         if(oldbut) {
2935                 data= oldbut->active;
2936                 data->cancel= 1;
2937                 button_activate_exit(C, data, oldbut, 0);
2938         }
2939
2940         button_activate_init(C, ar, but, type);
2941 }
2942
2943 /************ handle events for an activated button ***********/
2944
2945 static int ui_handle_button_event(bContext *C, wmEvent *event, uiBut *but)
2946 {
2947         uiHandleButtonData *data;
2948         uiBlock *block;
2949         ARegion *ar;
2950         uiBut *postbut;
2951         uiButtonActivateType posttype;
2952         int retval, mx, my;
2953
2954         data= but->active;
2955         block= but->block;
2956         ar= data->region;
2957
2958         retval= WM_UI_HANDLER_CONTINUE;
2959
2960         if(data->state == BUTTON_STATE_HIGHLIGHT) {
2961                 switch(event->type) {
2962                         case MOUSEMOVE:
2963                                 /* verify if we are still over the button, if not exit */
2964                                 mx= event->x;
2965                                 my= event->y;
2966                                 ui_window_to_block(ar, block, &mx, &my);
2967
2968                                 if(!ui_but_contains_pt(but, mx, my)) {
2969                                         data->cancel= 1;
2970                                         button_activate_state(C, but, BUTTON_STATE_EXIT);
2971                                 }
2972                                 else if(event->x!=event->prevx || event->y!=event->prevy) {
2973                                         /* re-enable tooltip on mouse move */
2974                                         ui_blocks_set_tooltips(ar, 1);
2975                                         button_tooltip_timer_reset(but);
2976                                 }
2977
2978                                 break;
2979                         case TIMER: {
2980                                 /* handle tooltip timer */
2981                                 if(event->customdata == data->tooltiptimer) {
2982                                         WM_event_remove_window_timer(data->window, data->tooltiptimer);
2983                                         data->tooltiptimer= NULL;
2984
2985                                         if(!data->tooltip)
2986                                                 data->tooltip= ui_tooltip_create(C, data->region, but);
2987                                 }
2988                                 /* handle menu auto open timer */
2989                                 else if(event->customdata == data->autoopentimer) {
2990                                         WM_event_remove_window_timer(data->window, data->autoopentimer);
2991                                         data->autoopentimer= NULL;
2992
2993                                         mx= event->x;