WINGs/wpopupbutton.c

   1
   2
   3
   4
   5 #include "WINGsP.h"
   6
   7
   8 typedef struct W_PopUpButton {
   9     W_Class widgetClass;
  10     WMView *view;
  11
  12     void *clientData;
  13     WMAction *action;
  14
  15     char *caption;
  16
  17     WMArray *items;
  18
  19     short selectedItemIndex;
  20
  21     short highlightedItem;
  22
  23     WMView *menuView;                  /* override redirect popup menu */
  24
  25     WMHandlerID timer;                 /* for autoscroll */
  26
  27     /**/
  28     int scrollStartY;                  /* for autoscroll */
  29
  30     struct {
  31         unsigned int pullsDown:1;
  32
  33         unsigned int configured:1;
  34
  35         unsigned int insideMenu:1;
  36
  37         unsigned int enabled:1;
  38
  39     } flags;
  40 } PopUpButton;
  41
  42
  43 #define MENU_BLINK_DELAY        60000
  44 #define MENU_BLINK_COUNT        2
  45
  46 #define SCROLL_DELAY            10
  47
  48
  49 #define DEFAULT_WIDTH   60
  50 #define DEFAULT_HEIGHT  20
  51 #define DEFAULT_CAPTION ""
  52
  53
  54 static void destroyPopUpButton(PopUpButton *bPtr);
  55 static void paintPopUpButton(PopUpButton *bPtr);
  56
  57 static void handleEvents(XEvent *event, void *data);
  58 static void handleActionEvents(XEvent *event, void *data);
  59
  60 static void resizeMenu(PopUpButton *bPtr);
  61
  62
  63 WMPopUpButton*
  64 WMCreatePopUpButton(WMWidget *parent)
  65 {
  66     PopUpButton *bPtr;
  67     W_Screen *scr = W_VIEW(parent)->screen;
  68
  69
  70     bPtr = wmalloc(sizeof(PopUpButton));
  71     memset(bPtr, 0, sizeof(PopUpButton));
  72
  73     bPtr->widgetClass = WC_PopUpButton;
  74
  75     bPtr->view = W_CreateView(W_VIEW(parent));
  76     if (!bPtr->view) {
  77         wfree(bPtr);
  78         return NULL;
  79     }
  80     bPtr->view->self = bPtr;
  81
  82     WMCreateEventHandler(bPtr->view, ExposureMask|StructureNotifyMask
  83                          |ClientMessageMask, handleEvents, bPtr);
  84
  85
  86     W_ResizeView(bPtr->view, DEFAULT_WIDTH, DEFAULT_HEIGHT);
  87     bPtr->caption = wstrdup(DEFAULT_CAPTION);
  88
  89     WMCreateEventHandler(bPtr->view, ButtonPressMask|ButtonReleaseMask,
  90                          handleActionEvents, bPtr);
  91
  92     bPtr->flags.enabled = 1;
  93
  94     bPtr->items =
  95         WMCreateArrayWithDestructor(4, (WMFreeDataProc*)WMDestroyMenuItem);
  96
  97     bPtr->selectedItemIndex = -1;
  98
  99     bPtr->menuView = W_CreateUnmanagedTopView(scr);
 100
 101     W_ResizeView(bPtr->menuView, bPtr->view->size.width, 1);
 102
 103     WMCreateEventHandler(bPtr->menuView, ButtonPressMask|ButtonReleaseMask
 104                          |EnterWindowMask|LeaveWindowMask|ButtonMotionMask
 105                          |ExposureMask, handleActionEvents, bPtr);
 106
 107     return bPtr;
 108 }
 109
 110
 111 void
 112 WMSetPopUpButtonAction(WMPopUpButton *bPtr, WMAction *action, void *clientData)
 113 {
 114     CHECK_CLASS(bPtr, WC_PopUpButton);
 115
 116     bPtr->action = action;
 117
 118     bPtr->clientData = clientData;
 119 }
 120
 121
 122 WMMenuItem*
 123 WMAddPopUpButtonItem(WMPopUpButton *bPtr, char *title)
 124 {
 125     WMMenuItem *item;
 126
 127     CHECK_CLASS(bPtr, WC_PopUpButton);
 128
 129     item = WMCreateMenuItem();
 130     WMSetMenuItemTitle(item, title);
 131
 132     WMAddToArray(bPtr->items, item);
 133
 134     if (bPtr->menuView && bPtr->menuView->flags.realized)
 135         resizeMenu(bPtr);
 136
 137     return item;
 138 }
 139
 140
 141 WMMenuItem*
 142 WMInsertPopUpButtonItem(WMPopUpButton *bPtr, int index, char *title)
 143 {
 144     WMMenuItem *item;
 145
 146     CHECK_CLASS(bPtr, WC_PopUpButton);
 147
 148     item = WMCreateMenuItem();
 149     WMSetMenuItemTitle(item, title);
 150
 151     WMInsertInArray(bPtr->items, index, item);
 152
 153     /* if there is an selected item, update it's index to match the new
 154      * position */
 155     if (index < bPtr->selectedItemIndex)
 156         bPtr->selectedItemIndex++;
 157
 158     if (bPtr->menuView && bPtr->menuView->flags.realized)
 159         resizeMenu(bPtr);
 160
 161     return item;
 162 }
 163
 164
 165 void
 166 WMRemovePopUpButtonItem(WMPopUpButton *bPtr, int index)
 167 {
 168     CHECK_CLASS(bPtr, WC_PopUpButton);
 169
 170     wassertr(index >= 0 && index < WMGetArrayItemCount(bPtr->items));
 171
 172
 173     WMDeleteFromArray(bPtr->items, index);
 174
 175     if (bPtr->selectedItemIndex >= 0 && !bPtr->flags.pullsDown) {
 176         if (index < bPtr->selectedItemIndex)
 177             bPtr->selectedItemIndex--;
 178         else if (index == bPtr->selectedItemIndex) {
 179             /* reselect first item if the removed item is the
 180              * selected one */
 181             bPtr->selectedItemIndex = 0;
 182             if (bPtr->view->flags.mapped)
 183                 paintPopUpButton(bPtr);
 184         }
 185     }
 186
 187     if (bPtr->menuView && bPtr->menuView->flags.realized)
 188         resizeMenu(bPtr);
 189 }
 190
 191
 192 void
 193 WMSetPopUpButtonEnabled(WMPopUpButton *bPtr, Bool flag)
 194 {
 195     bPtr->flags.enabled = ((flag==0) ? 0 : 1);
 196     if (bPtr->view->flags.mapped)
 197         paintPopUpButton(bPtr);
 198 }
 199
 200
 201 Bool
 202 WMGetPopUpButtonEnabled(WMPopUpButton *bPtr)
 203 {
 204     return bPtr->flags.enabled;
 205 }
 206
 207
 208 void
 209 WMSetPopUpButtonSelectedItem(WMPopUpButton *bPtr, int index)
 210 {
 211
 212     wassertr(index < WMGetArrayItemCount(bPtr->items));
 213
 214     /* if (index >= WMGetArrayCount(bPtr->items))
 215         index = -1;*/
 216
 217     bPtr->selectedItemIndex = index;
 218
 219     if (bPtr->view->flags.mapped)
 220         paintPopUpButton(bPtr);
 221 }
 222
 223
 224 int
 225 WMGetPopUpButtonSelectedItem(WMPopUpButton *bPtr)
 226 {
 227     if (!bPtr->flags.pullsDown && bPtr->selectedItemIndex < 0)
 228         return -1;
 229     else
 230         return bPtr->selectedItemIndex;
 231 }
 232
 233
 234 void
 235 WMSetPopUpButtonText(WMPopUpButton *bPtr, char *text)
 236 {
 237     if (bPtr->caption)
 238         wfree(bPtr->caption);
 239     if (text)
 240         bPtr->caption = wstrdup(text);
 241     else
 242         bPtr->caption = NULL;
 243     if (bPtr->view->flags.realized) {
 244         if (bPtr->flags.pullsDown || bPtr->selectedItemIndex < 0) {
 245             paintPopUpButton(bPtr);
 246         }
 247     }
 248 }
 249
 250
 251
 252 void
 253 WMSetPopUpButtonItemEnabled(WMPopUpButton *bPtr, int index, Bool flag)
 254 {
 255     WMSetMenuItemEnabled(WMGetFromArray(bPtr->items, index), (flag ? 1 : 0));
 256 }
 257
 258
 259 Bool
 260 WMGetPopUpButtonItemEnabled(WMPopUpButton *bPtr, int index)
 261 {
 262     return WMGetMenuItemEnabled(WMGetFromArray(bPtr->items, index));
 263 }
 264
 265
 266 void
 267 WMSetPopUpButtonPullsDown(WMPopUpButton *bPtr, Bool flag)
 268 {
 269     bPtr->flags.pullsDown = ((flag==0) ? 0 : 1);
 270     if (flag) {
 271         bPtr->selectedItemIndex = -1;
 272     }
 273
 274     if (bPtr->view->flags.mapped)
 275         paintPopUpButton(bPtr);
 276 }
 277
 278
 279 int
 280 WMGetPopUpButtonNumberOfItems(WMPopUpButton *bPtr)
 281 {
 282     return WMGetArrayItemCount(bPtr->items);
 283 }
 284
 285
 286 char*
 287 WMGetPopUpButtonItem(WMPopUpButton *bPtr, int index)
 288 {
 289     if (index >= WMGetArrayItemCount(bPtr->items) || index < 0)
 290         return NULL;
 291
 292     return WMGetMenuItemTitle(WMGetFromArray(bPtr->items, index));
 293 }
 294
 295
 296 WMMenuItem*
 297 WMGetPopUpButtonMenuItem(WMPopUpButton *bPtr, int index)
 298 {
 299     return WMGetFromArray(bPtr->items, index);
 300 }
 301
 302
 303
 304 static void
 305 paintPopUpButton(PopUpButton *bPtr)
 306 {
 307     W_Screen *scr = bPtr->view->screen;
 308     char *caption;
 309     Pixmap pixmap;
 310
 311
 312     if (bPtr->flags.pullsDown) {
 313         caption = bPtr->caption;
 314     } else {
 315         if (bPtr->selectedItemIndex < 0) {
 316             /* if no item selected, show the caption */
 317             caption = bPtr->caption;
 318         } else {
 319             caption = WMGetPopUpButtonItem(bPtr, bPtr->selectedItemIndex);
 320         }
 321     }
 322
 323     pixmap = XCreatePixmap(scr->display, bPtr->view->window,
 324                            bPtr->view->size.width, bPtr->view->size.height,
 325                            scr->depth);
 326     XFillRectangle(scr->display, pixmap, WMColorGC(scr->gray), 0, 0,
 327                    bPtr->view->size.width, bPtr->view->size.height);
 328
 329     W_DrawRelief(scr, pixmap, 0, 0, bPtr->view->size.width,
 330                  bPtr->view->size.height, WRRaised);
 331
 332     if (caption) {
 333         W_PaintText(bPtr->view, pixmap, scr->normalFont, 6,
 334                     (bPtr->view->size.height-WMFontHeight(scr->normalFont))/2,
 335                     bPtr->view->size.width, WALeft,
 336                     bPtr->flags.enabled ? WMColorGC(scr->black) : WMColorGC(scr->darkGray),
 337                     False, caption, strlen(caption));
 338     }
 339
 340     if (bPtr->flags.pullsDown) {
 341         XCopyArea(scr->display, scr->pullDownIndicator->pixmap,
 342                   pixmap, scr->copyGC, 0, 0, scr->pullDownIndicator->width,
 343                   scr->pullDownIndicator->height,
 344                   bPtr->view->size.width-scr->pullDownIndicator->width-4,
 345                   (bPtr->view->size.height-scr->pullDownIndicator->height)/2);
 346     } else {
 347         int x, y;
 348
 349         x = bPtr->view->size.width - scr->popUpIndicator->width - 4;
 350         y = (bPtr->view->size.height-scr->popUpIndicator->height)/2;
 351
 352         XSetClipOrigin(scr->display, scr->clipGC, x, y);
 353         XSetClipMask(scr->display, scr->clipGC, scr->popUpIndicator->mask);
 354         XCopyArea(scr->display, scr->popUpIndicator->pixmap, pixmap,
 355                   scr->clipGC, 0, 0, scr->popUpIndicator->width,
 356                   scr->popUpIndicator->height, x, y);
 357     }
 358
 359     XCopyArea(scr->display, pixmap, bPtr->view->window, scr->copyGC, 0, 0,
 360               bPtr->view->size.width, bPtr->view->size.height, 0, 0);
 361
 362     XFreePixmap(scr->display, pixmap);
 363 }
 364
 365
 366
 367 static void
 368 handleEvents(XEvent *event, void *data)
 369 {
 370     PopUpButton *bPtr = (PopUpButton*)data;
 371
 372     CHECK_CLASS(data, WC_PopUpButton);
 373
 374
 375     switch (event->type) {
 376      case Expose:
 377         if (event->xexpose.count!=0)
 378             break;
 379         paintPopUpButton(bPtr);
 380         break;
 381
 382      case DestroyNotify:
 383         destroyPopUpButton(bPtr);
 384         break;
 385     }
 386 }
 387
 388
 389
 390 static void
 391 paintMenuEntry(PopUpButton *bPtr, int index, int highlight)
 392 {
 393     W_Screen *scr = bPtr->view->screen;
 394     int yo;
 395     int width, height, itemHeight, itemCount;
 396     char *title;
 397
 398     itemCount = WMGetArrayItemCount(bPtr->items);
 399     if (index < 0 || index >= itemCount)
 400         return;
 401
 402     itemHeight = bPtr->view->size.height;
 403     width = bPtr->view->size.width;
 404     height = itemHeight * itemCount;
 405     yo = (itemHeight - WMFontHeight(scr->normalFont))/2;
 406
 407     if (!highlight) {
 408         XClearArea(scr->display, bPtr->menuView->window, 0, index*itemHeight,
 409                    width, itemHeight, False);
 410         return;
 411     } else if (index < 0 && bPtr->flags.pullsDown) {
 412         return;
 413     }
 414
 415     XFillRectangle(scr->display, bPtr->menuView->window, WMColorGC(scr->white),
 416                    1, index*itemHeight+1, width-3, itemHeight-3);
 417
 418     title = WMGetPopUpButtonItem(bPtr, index);
 419
 420     W_DrawRelief(scr, bPtr->menuView->window, 0, index*itemHeight,
 421                  width, itemHeight, WRRaised);
 422
 423     W_PaintText(bPtr->menuView, bPtr->menuView->window, scr->normalFont,  6,
 424                 index*itemHeight + yo, width, WALeft, WMColorGC(scr->black),
 425                 False, title, strlen(title));
 426
 427     if (!bPtr->flags.pullsDown && index == bPtr->selectedItemIndex) {
 428         XCopyArea(scr->display, scr->popUpIndicator->pixmap,
 429                   bPtr->menuView->window, scr->copyGC, 0, 0,
 430                   scr->popUpIndicator->width, scr->popUpIndicator->height,
 431                   width-scr->popUpIndicator->width-4,
 432                   index*itemHeight+(itemHeight-scr->popUpIndicator->height)/2);
 433     }
 434 }
 435
 436
 437 Pixmap
 438 makeMenuPixmap(PopUpButton *bPtr)
 439 {
 440     Pixmap pixmap;
 441     W_Screen *scr = bPtr->view->screen;
 442     WMMenuItem *item;
 443     WMArrayIterator iter;
 444     int yo, i;
 445     int width, height, itemHeight;
 446
 447     itemHeight = bPtr->view->size.height;
 448     width = bPtr->view->size.width;
 449     height = itemHeight * WMGetArrayItemCount(bPtr->items);
 450     yo = (itemHeight - WMFontHeight(scr->normalFont))/2;
 451
 452     pixmap = XCreatePixmap(scr->display, bPtr->view->window, width, height,
 453                            scr->depth);
 454
 455     XFillRectangle(scr->display, pixmap, WMColorGC(scr->gray), 0, 0,
 456                    width, height);
 457
 458     i = 0;
 459     WM_ITERATE_ARRAY(bPtr->items, item, iter) {
 460         GC gc;
 461         char *text;
 462
 463         text = WMGetMenuItemTitle(item);
 464
 465         W_DrawRelief(scr, pixmap, 0, i*itemHeight, width, itemHeight,
 466                      WRRaised);
 467
 468         if (!WMGetMenuItemEnabled(item))
 469             gc = WMColorGC(scr->darkGray);
 470         else
 471             gc = WMColorGC(scr->black);
 472
 473         W_PaintText(bPtr->menuView, pixmap, scr->normalFont,  6,
 474                     i*itemHeight + yo, width, WALeft, gc, False,
 475                     text, strlen(text));
 476
 477         if (!bPtr->flags.pullsDown && i == bPtr->selectedItemIndex) {
 478             XCopyArea(scr->display, scr->popUpIndicator->pixmap, pixmap,
 479                       scr->copyGC, 0, 0, scr->popUpIndicator->width,
 480                       scr->popUpIndicator->height,
 481                       width-scr->popUpIndicator->width-4,
 482                       i*itemHeight+(itemHeight-scr->popUpIndicator->height)/2);
 483         }
 484
 485         i++;
 486     }
 487
 488     return pixmap;
 489 }
 490
 491
 492 static void
 493 resizeMenu(PopUpButton *bPtr)
 494 {
 495     int height;
 496
 497     height = WMGetArrayItemCount(bPtr->items) * bPtr->view->size.height;
 498     if (height > 0)
 499         W_ResizeView(bPtr->menuView, bPtr->view->size.width, height);
 500 }
 501
 502
 503 static void
 504 popUpMenu(PopUpButton *bPtr)
 505 {
 506     W_Screen *scr = bPtr->view->screen;
 507     Window dummyW;
 508     int x, y;
 509
 510     if (!bPtr->flags.enabled)
 511         return;
 512
 513     if (!bPtr->menuView->flags.realized) {
 514         W_RealizeView(bPtr->menuView);
 515         resizeMenu(bPtr);
 516     }
 517
 518     if (WMGetArrayItemCount(bPtr->items) < 1)
 519         return;
 520
 521     XTranslateCoordinates(scr->display, bPtr->view->window, scr->rootWin,
 522                           0, 0, &x, &y, &dummyW);
 523
 524     if (bPtr->flags.pullsDown) {
 525         y += bPtr->view->size.height;
 526     } else {
 527         y -= bPtr->view->size.height*bPtr->selectedItemIndex;
 528     }
 529     W_MoveView(bPtr->menuView, x, y);
 530
 531     XSetWindowBackgroundPixmap(scr->display, bPtr->menuView->window,
 532                                makeMenuPixmap(bPtr));
 533     XClearWindow(scr->display, bPtr->menuView->window);
 534
 535     if (W_VIEW_WIDTH(bPtr->menuView) != W_VIEW_WIDTH(bPtr->view))
 536         resizeMenu(bPtr);
 537
 538     W_MapView(bPtr->menuView);
 539
 540     bPtr->highlightedItem = 0;
 541     if (!bPtr->flags.pullsDown && bPtr->selectedItemIndex < 0)
 542         paintMenuEntry(bPtr, bPtr->selectedItemIndex, True);
 543 }
 544
 545
 546 static void
 547 popDownMenu(PopUpButton *bPtr)
 548 {
 549     W_UnmapView(bPtr->menuView);
 550 }
 551
 552
 553 static void
 554 autoScroll(void *data)
 555 {
 556     PopUpButton *bPtr = (PopUpButton*)data;
 557     int scrHeight = WMWidgetScreen(bPtr)->rootView->size.height;
 558     int repeat = 0;
 559     int dy = 0;
 560
 561
 562     if (bPtr->scrollStartY >= scrHeight-1
 563         && bPtr->menuView->pos.y+bPtr->menuView->size.height >= scrHeight-1) {
 564         repeat = 1;
 565
 566         if (bPtr->menuView->pos.y+bPtr->menuView->size.height-5
 567             <= scrHeight - 1) {
 568             dy = scrHeight - 1
 569                 - (bPtr->menuView->pos.y+bPtr->menuView->size.height);
 570         } else
 571             dy = -5;
 572
 573     } else if (bPtr->scrollStartY <= 1 && bPtr->menuView->pos.y < 1) {
 574         repeat = 1;
 575
 576         if (bPtr->menuView->pos.y+5 > 1)
 577             dy = 1 - bPtr->menuView->pos.y;
 578         else
 579             dy = 5;
 580     }
 581
 582     if (repeat) {
 583         int oldItem;
 584
 585         W_MoveView(bPtr->menuView, bPtr->menuView->pos.x,
 586                    bPtr->menuView->pos.y + dy);
 587
 588         oldItem = bPtr->highlightedItem;
 589         bPtr->highlightedItem = (bPtr->scrollStartY - bPtr->menuView->pos.y)
 590             / bPtr->view->size.height;
 591
 592         if (oldItem!=bPtr->highlightedItem) {
 593             WMMenuItem *item;
 594
 595             paintMenuEntry(bPtr, oldItem, False);
 596
 597             if (bPtr->highlightedItem >= 0 &&
 598                 bPtr->highlightedItem < WMGetArrayItemCount(bPtr->items)) {
 599                 item = WMGetPopUpButtonMenuItem(bPtr, bPtr->highlightedItem);
 600                 paintMenuEntry(bPtr, bPtr->highlightedItem,
 601                                WMGetMenuItemEnabled(item));
 602             } else {
 603                 bPtr->highlightedItem = -1;
 604             }
 605         }
 606
 607         bPtr->timer = WMAddTimerHandler(SCROLL_DELAY, autoScroll, bPtr);
 608     } else {
 609         bPtr->timer = NULL;
 610     }
 611 }
 612
 613
 614 static void
 615 wheelScrollUp(PopUpButton *bPtr)
 616 {
 617     int testIndex = bPtr->selectedItemIndex - 1;
 618
 619     while (testIndex>=0 && !WMGetPopUpButtonItemEnabled(bPtr, testIndex))
 620         testIndex--;
 621     if (testIndex != -1) {
 622         WMSetPopUpButtonSelectedItem(bPtr, testIndex);
 623         if (bPtr->action)
 624             (*bPtr->action)(bPtr, bPtr->clientData);
 625     }
 626 }
 627
 628
 629 static void
 630 wheelScrollDown(PopUpButton *bPtr)
 631 {
 632     int itemCount = WMGetArrayItemCount(bPtr->items);
 633     int testIndex = bPtr->selectedItemIndex + 1;
 634
 635     while (testIndex<itemCount && !WMGetPopUpButtonItemEnabled(bPtr, testIndex))
 636         testIndex++;
 637     if (testIndex != itemCount) {
 638         WMSetPopUpButtonSelectedItem(bPtr, testIndex);
 639         if (bPtr->action)
 640             (*bPtr->action)(bPtr, bPtr->clientData);
 641     }
 642 }
 643
 644
 645 static void
 646 handleActionEvents(XEvent *event, void *data)
 647 {
 648     PopUpButton *bPtr = (PopUpButton*)data;
 649     int oldItem;
 650     int scrHeight = WMWidgetScreen(bPtr)->rootView->size.height;
 651
 652     CHECK_CLASS(data, WC_PopUpButton);
 653
 654     if (WMGetArrayItemCount(bPtr->items) < 1)
 655         return;
 656
 657     switch (event->type) {
 658         /* called for menuView */
 659      case Expose:
 660         paintMenuEntry(bPtr, bPtr->highlightedItem, True);
 661         break;
 662
 663      case LeaveNotify:
 664         bPtr->flags.insideMenu = 0;
 665         if (bPtr->menuView->flags.mapped)
 666             paintMenuEntry(bPtr, bPtr->highlightedItem, False);
 667         bPtr->highlightedItem = -1;
 668         break;
 669
 670      case EnterNotify:
 671         bPtr->flags.insideMenu = 1;
 672         break;
 673
 674      case MotionNotify:
 675         if (bPtr->flags.insideMenu) {
 676             oldItem = bPtr->highlightedItem;
 677             bPtr->highlightedItem = event->xmotion.y / bPtr->view->size.height;
 678             if (oldItem!=bPtr->highlightedItem) {
 679                 WMMenuItem *item;
 680
 681                 paintMenuEntry(bPtr, oldItem, False);
 682                 if (bPtr->highlightedItem >= 0 &&
 683                     bPtr->highlightedItem < WMGetArrayItemCount(bPtr->items)) {
 684                     item = WMGetPopUpButtonMenuItem(bPtr, bPtr->highlightedItem);
 685                     paintMenuEntry(bPtr, bPtr->highlightedItem,
 686                                    WMGetMenuItemEnabled(item));
 687                 } else {
 688                     bPtr->highlightedItem = -1;
 689                 }
 690
 691             }
 692
 693             if (event->xmotion.y_root >= scrHeight-1
 694                 || event->xmotion.y_root <= 1) {
 695                 bPtr->scrollStartY = event->xmotion.y_root;
 696                 if (!bPtr->timer)
 697                     autoScroll(bPtr);
 698             } else if (bPtr->timer) {
 699                 WMDeleteTimerHandler(bPtr->timer);
 700                 bPtr->timer = NULL;
 701             }
 702         }
 703         break;
 704
 705         /* called for bPtr->view */
 706      case ButtonPress:
 707         if (!bPtr->flags.enabled)
 708             break;
 709
 710         if (event->xbutton.button==WINGsConfiguration.mouseWheelUp) {
 711             if (!bPtr->menuView->flags.mapped && !bPtr->flags.pullsDown) {
 712                 wheelScrollUp(bPtr);
 713             }
 714             break;
 715         } else if (event->xbutton.button==WINGsConfiguration.mouseWheelDown) {
 716             if (!bPtr->menuView->flags.mapped && !bPtr->flags.pullsDown) {
 717                 wheelScrollDown(bPtr);
 718             }
 719             break;
 720         }
 721         popUpMenu(bPtr);
 722         if (!bPtr->flags.pullsDown) {
 723             bPtr->highlightedItem = bPtr->selectedItemIndex;
 724             bPtr->flags.insideMenu = 1;
 725         } else {
 726             bPtr->highlightedItem = -1;
 727             bPtr->flags.insideMenu = 0;
 728         }
 729         XGrabPointer(bPtr->view->screen->display, bPtr->menuView->window,
 730                      False, ButtonReleaseMask|ButtonMotionMask|EnterWindowMask
 731                      |LeaveWindowMask, GrabModeAsync, GrabModeAsync,
 732                      None, None, CurrentTime);
 733         break;
 734
 735      case ButtonRelease:
 736         if (event->xbutton.button==WINGsConfiguration.mouseWheelUp ||
 737             event->xbutton.button==WINGsConfiguration.mouseWheelDown) {
 738             break;
 739         }
 740         XUngrabPointer(bPtr->view->screen->display, event->xbutton.time);
 741         if (!bPtr->flags.pullsDown)
 742             popDownMenu(bPtr);
 743
 744         if (bPtr->timer) {
 745             WMDeleteTimerHandler(bPtr->timer);
 746             bPtr->timer = NULL;
 747         }
 748
 749         if (bPtr->flags.insideMenu && bPtr->highlightedItem>=0) {
 750             WMMenuItem *item;
 751
 752             item = WMGetPopUpButtonMenuItem(bPtr, bPtr->highlightedItem);
 753
 754             if (WMGetMenuItemEnabled(item)) {
 755                 int i;
 756                 WMSetPopUpButtonSelectedItem(bPtr, bPtr->highlightedItem);
 757
 758                 if (bPtr->flags.pullsDown) {
 759                     for (i=0; i<MENU_BLINK_COUNT; i++) {
 760                         paintMenuEntry(bPtr, bPtr->highlightedItem, False);
 761                         XSync(bPtr->view->screen->display, 0);
 762                         wusleep(MENU_BLINK_DELAY);
 763                         paintMenuEntry(bPtr, bPtr->highlightedItem, True);
 764                         XSync(bPtr->view->screen->display, 0);
 765                         wusleep(MENU_BLINK_DELAY);
 766                     }
 767                 }
 768                 paintMenuEntry(bPtr, bPtr->highlightedItem, False);
 769                 popDownMenu(bPtr);
 770                 if (bPtr->action)
 771                     (*bPtr->action)(bPtr, bPtr->clientData);
 772             }
 773         }
 774         if (bPtr->menuView->flags.mapped)
 775             popDownMenu(bPtr);
 776         break;
 777     }
 778 }
 779
 780
 781
 782 static void
 783 destroyPopUpButton(PopUpButton *bPtr)
 784 {
 785     if (bPtr->timer) {
 786         WMDeleteTimerHandler(bPtr->timer);
 787     }
 788
 789     WMFreeArray(bPtr->items);
 790
 791     if (bPtr->caption)
 792         wfree(bPtr->caption);
 793
 794     /* have to destroy explicitly because the popup is a toplevel */
 795     W_DestroyView(bPtr->menuView);
 796
 797     wfree(bPtr);
 798 }