WINGs/wlist.c

   1
   2
   3
   4
   5 #include "WINGsP.h"
   6
   7 char *WMListDidScrollNotification = "WMListDidScrollNotification";
   8 char *WMListSelectionDidChangeNotification = "WMListSelectionDidChangeNotification";
   9
  10 typedef struct W_List {
  11     W_Class widgetClass;
  12     W_View *view;
  13
  14     WMListItem *items;         /* array of items */
  15     short itemCount;
  16
  17     short selectedItem;
  18
  19     short itemHeight;
  20
  21     short topItem;                     /* index of first visible item */
  22
  23     short fullFitLines;                /* no of lines that fit entirely */
  24
  25     void *clientData;
  26     WMAction *action;
  27     void *doubleClientData;
  28     WMAction *doubleAction;
  29
  30     WMListDrawProc *draw;
  31
  32     WMHandlerID *idleID;               /* for updating the scroller after
  33                                         * adding elements */
  34
  35     WMScroller *vScroller;
  36     /*
  37     WMScroller *hScroller;
  38      */
  39
  40     struct {
  41         unsigned int allowMultipleSelection:1;
  42         unsigned int userDrawn:1;
  43         unsigned int userItemHeight:1;
  44         /* */
  45         unsigned int dontFitAll:1;     /* 1 = last item won't be fully visible */
  46         unsigned int redrawPending:1;
  47         unsigned int buttonPressed:1;
  48         unsigned int buttonWasPressed:1;
  49     } flags;
  50 } List;
  51
  52
  53
  54 #define DEFAULT_WIDTH   150
  55 #define DEFAULT_HEIGHT  150
  56
  57
  58 static void destroyList(List *lPtr);
  59 static void paintList(List *lPtr);
  60
  61
  62 static void handleEvents(XEvent *event, void *data);
  63 static void handleActionEvents(XEvent *event, void *data);
  64 static void updateScroller(List *lPtr);
  65
  66 static void vScrollCallBack(WMWidget *scroller, void *self);
  67
  68 static void resizeList();
  69
  70
  71 W_ViewProcedureTable _ListViewProcedures = {
  72     NULL,
  73         resizeList,
  74         NULL
  75 };
  76
  77
  78
  79 WMList*
  80 WMCreateList(WMWidget *parent)
  81 {
  82     List *lPtr;
  83     W_Screen *scrPtr = W_VIEW(parent)->screen;
  84
  85     lPtr = wmalloc(sizeof(List));
  86     memset(lPtr, 0, sizeof(List));
  87
  88     lPtr->widgetClass = WC_List;
  89
  90     lPtr->view = W_CreateView(W_VIEW(parent));
  91     if (!lPtr->view) {
  92         free(lPtr);
  93         return NULL;
  94     }
  95     lPtr->view->self = lPtr;
  96
  97     WMCreateEventHandler(lPtr->view, ExposureMask|StructureNotifyMask
  98                          |ClientMessageMask, handleEvents, lPtr);
  99
 100     WMCreateEventHandler(lPtr->view, ButtonPressMask|ButtonReleaseMask
 101                          |EnterWindowMask|LeaveWindowMask|ButtonMotionMask,
 102                          handleActionEvents, lPtr);
 103
 104     lPtr->itemHeight = WMFontHeight(scrPtr->normalFont) + 1;
 105
 106     /* create the vertical scroller */
 107     lPtr->vScroller = WMCreateScroller(lPtr);
 108     WMMoveWidget(lPtr->vScroller, 1, 1);
 109     WMSetScrollerArrowsPosition(lPtr->vScroller, WSAMaxEnd);
 110
 111     WMSetScrollerAction(lPtr->vScroller, vScrollCallBack, lPtr);
 112
 113     /* make the scroller map itself when it's realized */
 114     WMMapWidget(lPtr->vScroller);
 115
 116     resizeList(lPtr, DEFAULT_WIDTH, DEFAULT_HEIGHT);
 117
 118     lPtr->selectedItem = -1;
 119
 120     return lPtr;
 121 }
 122
 123
 124
 125 WMListItem*
 126 WMAddSortedListItem(WMList *lPtr, char *text)
 127 {
 128     WMListItem *item;
 129     WMListItem *tmp;
 130     int index;
 131
 132     item = wmalloc(sizeof(WMListItem));
 133     memset(item, 0, sizeof(WMListItem));
 134     item->text = wstrdup(text);
 135     if (!lPtr->items) {
 136         lPtr->items = item;
 137         index = 0;
 138     } else if (strcmp(lPtr->items->text, text) > 0) {
 139         item->nextPtr = lPtr->items;
 140         lPtr->items = item;
 141         index = 1;
 142     } else {
 143         int added = 0;
 144
 145         index = 0;
 146         tmp = lPtr->items;
 147         while (tmp->nextPtr) {
 148             if (strcmp(tmp->nextPtr->text, text) >= 0) {
 149                 item->nextPtr = tmp->nextPtr;
 150                 tmp->nextPtr = item;
 151                 added = 1;
 152                 break;
 153             }
 154             index++;
 155             tmp = tmp->nextPtr;
 156         }
 157         if (!added) {
 158             tmp->nextPtr = item;
 159         }
 160     }
 161
 162     lPtr->itemCount++;
 163
 164     if (lPtr->selectedItem >= index)
 165         lPtr->selectedItem++;
 166
 167     /* update the scroller when idle, so that we don't waste time
 168      * updating it when another item is going to be added later */
 169     if (!lPtr->idleID) {
 170         lPtr->idleID = WMAddIdleHandler((WMCallback*)updateScroller, lPtr);
 171     }
 172
 173     return item;
 174 }
 175
 176
 177
 178 WMListItem*
 179 WMInsertListItem(WMList *lPtr, int row, char *text)
 180 {
 181     WMListItem *item;
 182     WMListItem *tmp = lPtr->items;
 183
 184     CHECK_CLASS(lPtr, WC_List);
 185
 186     item = wmalloc(sizeof(WMListItem));
 187     memset(item, 0, sizeof(WMListItem));
 188     item->text = wstrdup(text);
 189
 190     if (lPtr->selectedItem >= row && lPtr->selectedItem >= 0)
 191         lPtr->selectedItem++;
 192
 193     if (lPtr->items==NULL) {
 194         lPtr->items = item;
 195     } else if (row == 0) {
 196         item->nextPtr = lPtr->items;
 197         lPtr->items = item;
 198     } else if (row < 0) {
 199         while (tmp->nextPtr)
 200             tmp = tmp->nextPtr;
 201
 202         tmp->nextPtr = item;
 203         row = lPtr->itemCount;
 204     } else {
 205         while (--row > 0)
 206             tmp = tmp->nextPtr;
 207
 208         item->nextPtr = tmp->nextPtr;
 209         tmp->nextPtr = item;
 210     }
 211
 212     lPtr->itemCount++;
 213
 214     /* update the scroller when idle, so that we don't waste time
 215      * updating it when another item is going to be added later */
 216     if (!lPtr->idleID) {
 217         lPtr->idleID = WMAddIdleHandler((WMCallback*)updateScroller, lPtr);
 218     }
 219
 220     return item;
 221 }
 222
 223
 224 void
 225 WMRemoveListItem(WMList *lPtr, int row)
 226 {
 227     WMListItem *llist;
 228     WMListItem *tmp;
 229     int topItem = lPtr->topItem;
 230     int selNotify = 0;
 231
 232     CHECK_CLASS(lPtr, WC_List);
 233
 234     if (row < 0 || row >= lPtr->itemCount)
 235         return;
 236
 237     if (lPtr->selectedItem == row) {
 238         lPtr->selectedItem = -1;
 239         selNotify = 1;
 240     } else if (lPtr->selectedItem > row) {
 241         lPtr->selectedItem--;
 242     }
 243
 244     if (row <= lPtr->topItem+lPtr->fullFitLines+lPtr->flags.dontFitAll)
 245         lPtr->topItem--;
 246     if (lPtr->topItem < 0)
 247         lPtr->topItem = 0;
 248
 249     if (row == 0) {
 250         if (lPtr->items->text)
 251             free(lPtr->items->text);
 252
 253         tmp = lPtr->items->nextPtr;
 254         free(lPtr->items);
 255
 256         lPtr->items = tmp;
 257     } else {
 258         llist = lPtr->items;
 259         while (--row > 0)
 260             llist = llist->nextPtr;
 261         tmp = llist->nextPtr;
 262         llist->nextPtr = llist->nextPtr->nextPtr;
 263
 264         if (tmp->text)
 265             free(tmp->text);
 266
 267         free(tmp);
 268     }
 269
 270     lPtr->itemCount--;
 271
 272     if (!lPtr->idleID) {
 273         lPtr->idleID = WMAddIdleHandler((WMCallback*)updateScroller, lPtr);
 274     }
 275     if (lPtr->topItem != topItem)
 276         WMPostNotificationName(WMListDidScrollNotification, lPtr, NULL);
 277     if (selNotify)
 278         WMPostNotificationName(WMListSelectionDidChangeNotification, lPtr,
 279                                (void*)((int)lPtr->selectedItem));
 280 }
 281
 282
 283
 284 WMListItem*
 285 WMGetListItem(WMList *lPtr, int row)
 286 {
 287     WMListItem *listPtr;
 288
 289     listPtr = lPtr->items;
 290
 291     while (row-- > 0)
 292         listPtr = listPtr->nextPtr;
 293
 294     return listPtr;
 295 }
 296
 297
 298
 299 void
 300 WMSetListUserDrawProc(WMList *lPtr, WMListDrawProc *proc)
 301 {
 302     lPtr->flags.userDrawn = 1;
 303     lPtr->draw = proc;
 304 }
 305
 306
 307 void
 308 WMSetListUserDrawItemHeight(WMList *lPtr, unsigned short height)
 309 {
 310     assert(height > 0);
 311
 312     lPtr->flags.userItemHeight = 1;
 313     lPtr->itemHeight = height;
 314 }
 315
 316
 317 void
 318 WMClearList(WMList *lPtr)
 319 {
 320     WMListItem *item, *tmp;
 321     int oldSelected = lPtr->selectedItem;
 322
 323     item = lPtr->items;
 324     while (item) {
 325         free(item->text);
 326         tmp = item->nextPtr;
 327         free(item);
 328         item = tmp;
 329     }
 330     lPtr->items = NULL;
 331     lPtr->itemCount = 0;
 332     lPtr->topItem = 0;
 333     lPtr->selectedItem = -1;
 334
 335     if (!lPtr->idleID) {
 336         WMDeleteIdleHandler(lPtr->idleID);
 337         lPtr->idleID = NULL;
 338     }
 339     if (lPtr->view->flags.realized) {
 340         updateScroller(lPtr);
 341     }
 342     if (oldSelected != -1)
 343         WMPostNotificationName(WMListSelectionDidChangeNotification, lPtr,
 344                                (void*)-1);
 345 }
 346
 347
 348 void
 349 WMSetListAction(WMList *lPtr, WMAction *action, void *clientData)
 350 {
 351     lPtr->action = action;
 352     lPtr->clientData = clientData;
 353 }
 354
 355
 356 void
 357 WMSetListDoubleAction(WMList *lPtr, WMAction *action, void *clientData)
 358 {
 359     lPtr->doubleAction = action;
 360     lPtr->doubleClientData = clientData;
 361 }
 362
 363
 364 WMListItem*
 365 WMGetListSelectedItem(WMList *lPtr)
 366 {
 367     int i = lPtr->selectedItem;
 368     WMListItem *item;
 369
 370     if (lPtr->selectedItem < 0)
 371         return NULL;
 372
 373     item = lPtr->items;
 374     while (i-- > 0) {
 375         item = item->nextPtr;
 376     }
 377     return item;
 378 }
 379
 380
 381 int
 382 WMGetListSelectedItemRow(WMList *lPtr)
 383 {
 384     return lPtr->selectedItem;
 385 }
 386
 387
 388 int
 389 WMGetListItemHeight(WMList *lPtr)
 390 {
 391     return lPtr->itemHeight;
 392 }
 393
 394
 395 void
 396 WMSetListPosition(WMList *lPtr, int row)
 397 {
 398     lPtr->topItem = row;
 399     if (lPtr->topItem + lPtr->fullFitLines > lPtr->itemCount)
 400         lPtr->topItem = lPtr->itemCount - lPtr->fullFitLines;
 401
 402     if (lPtr->topItem < 0)
 403         lPtr->topItem = 0;
 404
 405     if (lPtr->view->flags.realized)
 406         updateScroller(lPtr);
 407 }
 408
 409
 410 void
 411 WMSetListBottomPosition(WMList *lPtr, int row)
 412 {
 413     if (lPtr->itemCount > lPtr->fullFitLines) {
 414         lPtr->topItem = row - lPtr->fullFitLines;
 415         if (lPtr->topItem < 0)
 416             lPtr->topItem = 0;
 417         if (lPtr->view->flags.realized)
 418             updateScroller(lPtr);
 419     }
 420 }
 421
 422
 423 int
 424 WMGetListNumberOfRows(WMList *lPtr)
 425 {
 426     return lPtr->itemCount;
 427 }
 428
 429 int
 430 WMGetListPosition(WMList *lPtr)
 431 {
 432     return lPtr->topItem;
 433 }
 434
 435
 436 static void
 437 vScrollCallBack(WMWidget *scroller, void *self)
 438 {
 439     WMList *lPtr = (WMList*)self;
 440     WMScroller *sPtr = (WMScroller*)scroller;
 441     int height;
 442     int topItem = lPtr->topItem;
 443
 444     height = lPtr->view->size.height - 4;
 445
 446     switch (WMGetScrollerHitPart(sPtr)) {
 447      case WSDecrementLine:
 448         if (lPtr->topItem > 0) {
 449             lPtr->topItem--;
 450
 451             updateScroller(lPtr);
 452         }
 453         break;
 454
 455      case WSDecrementPage:
 456         if (lPtr->topItem > 0) {
 457             lPtr->topItem -= lPtr->fullFitLines-(1-lPtr->flags.dontFitAll)-1;
 458             if (lPtr->topItem < 0)
 459                 lPtr->topItem = 0;
 460
 461             updateScroller(lPtr);
 462         }
 463         break;
 464
 465
 466      case WSIncrementLine:
 467         if (lPtr->topItem + lPtr->fullFitLines < lPtr->itemCount) {
 468             lPtr->topItem++;
 469
 470             updateScroller(lPtr);
 471         }
 472         break;
 473
 474      case WSIncrementPage:
 475         if (lPtr->topItem + lPtr->fullFitLines < lPtr->itemCount) {
 476             lPtr->topItem += lPtr->fullFitLines-(1-lPtr->flags.dontFitAll)-1;
 477
 478             if (lPtr->topItem + lPtr->fullFitLines > lPtr->itemCount)
 479                 lPtr->topItem = lPtr->itemCount - lPtr->fullFitLines;
 480
 481             updateScroller(lPtr);
 482         }
 483         break;
 484
 485      case WSKnob:
 486         {
 487             int oldTopItem = lPtr->topItem;
 488
 489             lPtr->topItem = WMGetScrollerValue(lPtr->vScroller) *
 490                 (float)(lPtr->itemCount - lPtr->fullFitLines);
 491
 492             if (oldTopItem != lPtr->topItem)
 493                 paintList(lPtr);
 494         }
 495         break;
 496
 497      case WSKnobSlot:
 498      case WSNoPart:
 499         /* do nothing */
 500         break;
 501     }
 502
 503     if (lPtr->topItem != topItem)
 504         WMPostNotificationName(WMListDidScrollNotification, lPtr, NULL);
 505 }
 506
 507
 508 static void
 509 paintItem(List *lPtr, int index)
 510 {
 511     WMView *view = lPtr->view;
 512     W_Screen *scr = view->screen;
 513     int width, height, x, y;
 514     WMListItem *itemPtr;
 515     int i;
 516
 517     i = index;
 518     itemPtr = lPtr->items;
 519     while (i-- > 0)
 520         itemPtr = itemPtr->nextPtr;
 521
 522     width = lPtr->view->size.width - 2 - 19;
 523     height = lPtr->itemHeight;
 524     x = 19;
 525     y = 2 + (index-lPtr->topItem) * lPtr->itemHeight + 1;
 526
 527     if (lPtr->flags.userDrawn) {
 528         WMRect rect;
 529         int flags;
 530
 531         rect.size.width = width;
 532         rect.size.height = height;
 533         rect.pos.x = x;
 534         rect.pos.y = y;
 535
 536         flags = itemPtr->uflags;
 537         if (itemPtr->disabled)
 538             flags |= WLDSDisabled;
 539         if (itemPtr->selected)
 540             flags |= WLDSSelected;
 541         if (itemPtr->isBranch)
 542             flags |= WLDSIsBranch;
 543
 544         if (lPtr->draw)
 545             (*lPtr->draw)(lPtr, index, view->window, itemPtr->text, flags,
 546                           &rect);
 547     } else {
 548         if (itemPtr->selected)
 549             XFillRectangle(scr->display, view->window, W_GC(scr->white), x, y,
 550                            width, height);
 551         else
 552             XClearArea(scr->display, view->window, x, y, width, height, False);
 553
 554         W_PaintText(view, view->window, scr->normalFont,  x+4, y, width,
 555                     WALeft, W_GC(scr->black), False,
 556                     itemPtr->text, strlen(itemPtr->text));
 557     }
 558 }
 559
 560
 561
 562 static void
 563 paintList(List *lPtr)
 564 {
 565     W_Screen *scrPtr = lPtr->view->screen;
 566     int i, lim;
 567
 568     if (!lPtr->view->flags.mapped)
 569         return;
 570
 571     if (lPtr->itemCount>0) {
 572         if (lPtr->topItem+lPtr->fullFitLines+lPtr->flags.dontFitAll > lPtr->itemCount) {
 573             lim = lPtr->itemCount - lPtr->topItem;
 574             XClearArea(scrPtr->display, lPtr->view->window, 19,
 575                        2+lim*lPtr->itemHeight, lPtr->view->size.width-21,
 576                        lPtr->view->size.height-lim*lPtr->itemHeight-3, False);
 577         } else {
 578             lim = lPtr->fullFitLines + lPtr->flags.dontFitAll;
 579         }
 580         for (i = lPtr->topItem; i < lPtr->topItem + lim; i++) {
 581             paintItem(lPtr, i);
 582         }
 583     } else {
 584         XClearWindow(scrPtr->display, lPtr->view->window);
 585     }
 586     W_DrawRelief(scrPtr, lPtr->view->window, 0, 0, lPtr->view->size.width,
 587                  lPtr->view->size.height, WRSunken);
 588 }
 589
 590 #if 0
 591 static void
 592 scrollTo(List *lPtr, int newTop)
 593 {
 594
 595 }
 596 #endif
 597
 598 static void
 599 updateScroller(List *lPtr)
 600 {
 601     float knobProportion, floatValue, tmp;
 602
 603     if (lPtr->idleID)
 604         WMDeleteIdleHandler(lPtr->idleID);
 605     lPtr->idleID = NULL;
 606
 607     paintList(lPtr);
 608
 609     if (lPtr->itemCount == 0 || lPtr->itemCount <= lPtr->fullFitLines)
 610         WMSetScrollerParameters(lPtr->vScroller, 0, 1);
 611     else {
 612         tmp = lPtr->fullFitLines;
 613         knobProportion = tmp/(float)lPtr->itemCount;
 614
 615         floatValue = (float)lPtr->topItem/(float)(lPtr->itemCount - lPtr->fullFitLines);
 616
 617         WMSetScrollerParameters(lPtr->vScroller, floatValue, knobProportion);
 618     }
 619 }
 620
 621
 622 static void
 623 handleEvents(XEvent *event, void *data)
 624 {
 625     List *lPtr = (List*)data;
 626
 627     CHECK_CLASS(data, WC_List);
 628
 629
 630     switch (event->type) {
 631      case Expose:
 632         if (event->xexpose.count!=0)
 633             break;
 634         paintList(lPtr);
 635         break;
 636
 637      case DestroyNotify:
 638         destroyList(lPtr);
 639         break;
 640
 641     }
 642 }
 643
 644
 645 int
 646 WMFindRowOfListItemWithTitle(WMList *lPtr, char *title)
 647 {
 648     WMListItem *item;
 649     int i;
 650     int ok = 0;
 651
 652     for (i=0, item=lPtr->items; item!=NULL; item=item->nextPtr, i++) {
 653         if (strcmp(item->text, title)==0) {
 654             ok = 1;
 655             break;
 656         }
 657     }
 658
 659     return ok ? i : -1;
 660 }
 661
 662
 663 void
 664 WMSelectListItem(WMList *lPtr, int row)
 665 {
 666     WMListItem *itemPtr;
 667     int i, notify = 0;
 668
 669     if (row >= lPtr->itemCount)
 670         return;
 671
 672     /* the check below must be changed when the multiple selection is
 673      * implemented. -Dan
 674      */
 675     if (!lPtr->flags.allowMultipleSelection && row == lPtr->selectedItem)
 676         notify = 0;
 677     else
 678         notify = 1;
 679
 680     if (!lPtr->flags.allowMultipleSelection) {
 681         /* unselect previous selected item */
 682         if (lPtr->selectedItem >= 0) {
 683             itemPtr = lPtr->items;
 684             for (i=0; i<lPtr->selectedItem; i++)
 685                 itemPtr = itemPtr->nextPtr;
 686
 687             if (itemPtr->selected) {
 688                 itemPtr->selected = 0;
 689                 if (lPtr->view->flags.mapped && i>=lPtr->topItem
 690                     && i<=lPtr->topItem+lPtr->fullFitLines)
 691                     paintItem(lPtr, i);
 692             }
 693         }
 694     }
 695
 696     if (row < 0) {
 697         if (!lPtr->flags.allowMultipleSelection) {
 698             lPtr->selectedItem = -1;
 699             if (notify)
 700                 WMPostNotificationName(WMListSelectionDidChangeNotification,
 701                                        lPtr, (void*)((int)lPtr->selectedItem));
 702         }
 703         return;
 704     }
 705
 706     /* select item */
 707     itemPtr = lPtr->items;
 708     for (i=0; i<row; i++)
 709         itemPtr = itemPtr->nextPtr;
 710     if (lPtr->flags.allowMultipleSelection)
 711         itemPtr->selected = !itemPtr->selected;
 712     else
 713         itemPtr->selected = 1;
 714
 715     if (lPtr->view->flags.mapped) {
 716         paintItem(lPtr, row);
 717
 718         if ((row-lPtr->topItem+lPtr->fullFitLines)*lPtr->itemHeight
 719             > lPtr->view->size.height-2)
 720             W_DrawRelief(lPtr->view->screen, lPtr->view->window, 0, 0,
 721                          lPtr->view->size.width, lPtr->view->size.height,
 722                          WRSunken);
 723     }
 724     lPtr->selectedItem = row;
 725     if (notify)
 726         WMPostNotificationName(WMListSelectionDidChangeNotification, lPtr,
 727                                (void*)((int)lPtr->selectedItem));
 728 }
 729
 730
 731 static int
 732 getItemIndexAt(List *lPtr, int clickY)
 733 {
 734     int index;
 735
 736     index = (clickY - 2) / lPtr->itemHeight + lPtr->topItem;
 737
 738     if (index < 0 || index >= lPtr->itemCount)
 739         return -1;
 740
 741     return index;
 742 }
 743
 744
 745 static void
 746 handleActionEvents(XEvent *event, void *data)
 747 {
 748     List *lPtr = (List*)data;
 749     int tmp;
 750     int topItem = lPtr->topItem;
 751
 752     CHECK_CLASS(data, WC_List);
 753
 754     switch (event->type) {
 755      case ButtonRelease:
 756         lPtr->flags.buttonPressed = 0;
 757         tmp = getItemIndexAt(lPtr, event->xbutton.y);
 758
 759         if (tmp == lPtr->selectedItem && tmp >= 0) {
 760             if (lPtr->action)
 761                 (*lPtr->action)(lPtr, lPtr->clientData);
 762         }
 763         break;
 764
 765      case EnterNotify:
 766         lPtr->flags.buttonPressed = lPtr->flags.buttonWasPressed;
 767         lPtr->flags.buttonWasPressed = 0;
 768         break;
 769
 770      case LeaveNotify:
 771         lPtr->flags.buttonWasPressed = lPtr->flags.buttonPressed;
 772         lPtr->flags.buttonPressed = 0;
 773         break;
 774
 775      case ButtonPress:
 776         if (event->xbutton.x > WMWidgetWidth(lPtr->vScroller)) {
 777             tmp = getItemIndexAt(lPtr, event->xbutton.y);
 778             lPtr->flags.buttonPressed = 1;
 779
 780             if (tmp >= 0) {
 781                 if (tmp == lPtr->selectedItem && WMIsDoubleClick(event)) {
 782                     WMSelectListItem(lPtr, tmp);
 783                     if (lPtr->doubleAction)
 784                         (*lPtr->doubleAction)(lPtr, lPtr->doubleClientData);
 785                 } else {
 786                     WMSelectListItem(lPtr, tmp);
 787                 }
 788             }
 789         }
 790         break;
 791
 792      case MotionNotify:
 793         if (lPtr->flags.buttonPressed) {
 794             tmp = getItemIndexAt(lPtr, event->xmotion.y);
 795             if (tmp>=0 && tmp != lPtr->selectedItem) {
 796                 WMSelectListItem(lPtr, tmp);
 797             }
 798         }
 799         break;
 800     }
 801     if (lPtr->topItem != topItem)
 802         WMPostNotificationName(WMListDidScrollNotification, lPtr, NULL);
 803 }
 804
 805
 806 static void
 807 resizeList(WMList *lPtr, unsigned int width, unsigned int height)
 808 {
 809     W_ResizeView(lPtr->view, width, height);
 810
 811     WMResizeWidget(lPtr->vScroller, 1, height-2);
 812
 813     lPtr->fullFitLines = (height - 4) / lPtr->itemHeight;
 814     if (lPtr->fullFitLines * lPtr->itemHeight < height-4) {
 815         lPtr->flags.dontFitAll = 1;
 816     } else {
 817         lPtr->flags.dontFitAll = 0;
 818     }
 819
 820     if (lPtr->itemCount - lPtr->topItem <= lPtr->fullFitLines) {
 821         lPtr->topItem = lPtr->itemCount - lPtr->fullFitLines;
 822         if (lPtr->topItem < 0)
 823             lPtr->topItem = 0;
 824     }
 825
 826     updateScroller(lPtr);
 827 }
 828
 829
 830 static void
 831 destroyList(List *lPtr)
 832 {
 833     WMListItem *itemPtr;
 834
 835     if (lPtr->idleID)
 836         WMDeleteIdleHandler(lPtr->idleID);
 837     lPtr->idleID = NULL;
 838
 839     while (lPtr->items!=NULL) {
 840         itemPtr = lPtr->items;
 841         if (itemPtr->text)
 842             free(itemPtr->text);
 843
 844         lPtr->items = itemPtr->nextPtr;
 845         free(itemPtr);
 846     }
 847
 848     free(lPtr);
 849 }