WINGs/wtabview.c

   1
   2 #include "WINGsP.h"
   3
   4 typedef struct W_TabView {
   5         W_Class widgetClass;
   6         W_View *view;
   7
   8         struct W_TabViewItem **items;
   9         int itemCount;
  10         int maxItems;           /* size of items array, can be increased */
  11
  12         int selectedItem;
  13         int firstVisible;
  14
  15         int visibleTabs;
  16
  17         WMFont *font;
  18
  19         WMColor *lightGray;
  20         WMColor *tabColor;
  21
  22         WMTabViewDelegate *delegate;
  23
  24         short tabHeight;
  25
  26         struct {
  27                 WMReliefType relief:4;
  28                 WMTitlePosition titlePosition:4;
  29                 WMTabViewType type:2;
  30
  31                 unsigned enabled:1;
  32                 unsigned tabbed:1;
  33                 unsigned dontFitAll:1;
  34                 unsigned bordered:1;
  35                 unsigned uniformTabs:1;
  36         } flags;
  37 } TabView;
  38
  39 typedef struct W_TabViewItem {
  40         WMTabView *tabView;
  41
  42         W_View *view;
  43
  44         char *label;
  45
  46         short tabWidth;
  47         int identifier;
  48
  49         struct {
  50                 unsigned visible:1;
  51                 unsigned enabled:1;
  52         } flags;
  53 } W_TabViewItem;
  54
  55 #define DEFAULT_WIDTH   40
  56 #define DEFAULT_HEIGHT  40
  57
  58 #define NORMAL_SIDE_OFFSET 8
  59 #define BUTTONED_SIDE_OFFSET 15
  60
  61 static void destroyTabView(TabView * tPtr);
  62 static void paintTabView(TabView * tPtr);
  63
  64 static void W_SetTabViewItemParent(WMTabViewItem * item, WMTabView * parent);
  65
  66 static void W_DrawLabel(WMTabViewItem * item, Drawable d, WMRect rect, Bool enabled);
  67
  68 static void W_UnmapTabViewItem(WMTabViewItem * item);
  69
  70 static void W_MapTabViewItem(WMTabViewItem * item);
  71
  72 static WMView *W_TabViewItemView(WMTabViewItem * item);
  73
  74 static int W_TabViewItemTabWidth(WMTabViewItem * item);
  75
  76 static void W_SetTabViewItemTabWidth(WMTabViewItem * item, int width);
  77
  78 static void recalcTabWidth(TabView * tPtr);
  79 static void rearrange(TabView * tPtr);
  80
  81 static void didResize(struct W_ViewDelegate *, WMView *);
  82
  83 static W_ViewDelegate delegate = {
  84         NULL,
  85         NULL,
  86         didResize,
  87         NULL,
  88         NULL
  89 };
  90
  91 static int positionOfTab(WMTabView * tabView, int tab)
  92 {
  93         int i;
  94         int offs;
  95
  96         if (tab < tabView->firstVisible)
  97                 return -1;
  98
  99         if (tab > tabView->firstVisible + tabView->visibleTabs)
 100                 return -1;
 101
 102         if (tabView->flags.dontFitAll)
 103                 offs = BUTTONED_SIDE_OFFSET;
 104         else
 105                 offs = NORMAL_SIDE_OFFSET;
 106
 107         for (i = tabView->firstVisible; i < tab; i++)
 108                 offs += W_TabViewItemTabWidth(tabView->items[i]) - 10;
 109
 110         return offs;
 111 }
 112
 113 static int countVisibleTabs(TabView * tPtr, int first)
 114 {
 115         int i;
 116         int width;
 117
 118         if (first < 0) {
 119                 width = W_VIEW_WIDTH(tPtr->view) - 2 * NORMAL_SIDE_OFFSET;
 120                 first = 0;
 121         } else {
 122                 width = W_VIEW_WIDTH(tPtr->view) - 2 * BUTTONED_SIDE_OFFSET;
 123         }
 124
 125         for (i = first; i < tPtr->itemCount; i++) {
 126                 width -= W_TabViewItemTabWidth(tPtr->items[i]) - 10;
 127                 if (width <= 0) {
 128                         return i - first;
 129                 }
 130         }
 131         return i - first;
 132 }
 133
 134 static void handleEvents(XEvent * event, void *data)
 135 {
 136         TabView *tPtr = (TabView *) data;
 137
 138         CHECK_CLASS(data, WC_TabView);
 139
 140         switch (event->type) {
 141         case Expose:
 142                 if (event->xexpose.count != 0)
 143                         break;
 144                 paintTabView(tPtr);
 145                 break;
 146
 147         case ButtonPress:
 148                 if (tPtr->flags.enabled) {
 149                         WMTabViewItem *item = WMTabViewItemAtPoint(tPtr,
 150                                                                    event->xbutton.x,
 151                                                                    event->xbutton.y);
 152                         /*if (item && !item->flags.enabled)
 153                            break; */
 154
 155                         if (item && item->flags.enabled) {
 156                                 WMSelectTabViewItem(tPtr, item);
 157                         } else if (tPtr->flags.dontFitAll) {
 158                                 int redraw = 0;
 159                                 int lastVisible = tPtr->firstVisible + tPtr->visibleTabs - 1;
 160
 161                                 if (event->xbutton.x < BUTTONED_SIDE_OFFSET) {
 162                                         if (tPtr->firstVisible > 0) {
 163                                                 redraw = 1;
 164                                                 tPtr->firstVisible--;
 165                                         }
 166                                 } else if (event->xbutton.x > positionOfTab(tPtr, lastVisible)) {
 167
 168                                         if (lastVisible < tPtr->itemCount - 1) {
 169                                                 redraw = 1;
 170                                                 tPtr->firstVisible++;
 171                                         }
 172                                 }
 173                                 tPtr->visibleTabs = countVisibleTabs(tPtr, tPtr->firstVisible);
 174                                 if (redraw) {
 175                                         paintTabView(tPtr);
 176                                 }
 177                         }
 178                 }
 179                 break;
 180
 181         case DestroyNotify:
 182                 destroyTabView(tPtr);
 183                 break;
 184         }
 185 }
 186
 187 WMTabView *WMCreateTabView(WMWidget * parent)
 188 {
 189         TabView *tPtr;
 190         WMScreen *scr = WMWidgetScreen(parent);
 191
 192         tPtr = wmalloc(sizeof(TabView));
 193         memset(tPtr, 0, sizeof(TabView));
 194
 195         tPtr->widgetClass = WC_TabView;
 196
 197         tPtr->view = W_CreateView(W_VIEW(parent));
 198         if (!tPtr->view) {
 199                 wfree(tPtr);
 200                 return NULL;
 201         }
 202         tPtr->view->self = tPtr;
 203         tPtr->view->delegate = &delegate;
 204
 205         tPtr->lightGray = WMCreateRGBColor(scr, 0xd9d9, 0xd9d9, 0xd9d9, False);
 206         tPtr->tabColor = WMCreateRGBColor(scr, 0x8420, 0x8420, 0x8420, False);
 207
 208         tPtr->font = WMRetainFont(scr->normalFont);
 209
 210         tPtr->flags.type = WTTopTabsBevelBorder;
 211         tPtr->flags.bordered = 1;
 212         tPtr->flags.uniformTabs = 0;
 213         tPtr->flags.enabled = 1;
 214
 215         WMCreateEventHandler(tPtr->view, ExposureMask | StructureNotifyMask | ButtonPressMask, handleEvents, tPtr);
 216
 217         WMResizeWidget(tPtr, DEFAULT_WIDTH, DEFAULT_HEIGHT);
 218
 219         tPtr->tabHeight = WMFontHeight(tPtr->font) + 3;
 220
 221         return tPtr;
 222 }
 223
 224 void WMSetTabViewDelegate(WMTabView * tPtr, WMTabViewDelegate * delegate)
 225 {
 226         tPtr->delegate = delegate;
 227 }
 228
 229 WMTabViewItem *WMAddTabViewItemWithView(WMTabView * tPtr, WMView * view, int identifier, char *label)
 230 {
 231         WMTabViewItem *item;
 232
 233         item = WMCreateTabViewItemWithIdentifier(identifier);
 234         WMSetTabViewItemView(item, view);
 235         WMAddItemInTabView(tPtr, item);
 236         WMSetTabViewItemLabel(item, label);
 237
 238         return item;
 239 }
 240
 241 void WMAddItemInTabView(WMTabView * tPtr, WMTabViewItem * item)
 242 {
 243         WMInsertItemInTabView(tPtr, tPtr->itemCount, item);
 244 }
 245
 246 void WMSetTabViewEnabled(WMTabView * tPtr, Bool flag)
 247 {
 248         tPtr->flags.enabled = ((flag == 0) ? 0 : 1);
 249         if (W_VIEW_REALIZED(tPtr->view))
 250                 paintTabView(tPtr);
 251 }
 252
 253 void WMInsertItemInTabView(WMTabView * tPtr, int index, WMTabViewItem * item)
 254 {
 255         wassertr(W_TabViewItemView(item) != NULL);
 256
 257         if (tPtr->maxItems == tPtr->itemCount) {
 258                 WMTabViewItem **items;
 259
 260                 items = wrealloc(tPtr->items, sizeof(WMTabViewItem *) * (tPtr->maxItems + 10));
 261                 memset(&items[tPtr->maxItems], 0, sizeof(WMTabViewItem *) * 10);
 262                 tPtr->items = items;
 263                 tPtr->maxItems += 10;
 264         }
 265
 266         if (index > tPtr->itemCount)
 267                 index = tPtr->itemCount;
 268
 269         if (index == 0 && tPtr->items[0]) {
 270                 W_UnmapTabViewItem(tPtr->items[0]);
 271         }
 272
 273         if (index < tPtr->itemCount) {
 274                 memmove(tPtr->items + index + 1, tPtr->items + index,
 275                         (tPtr->itemCount - index) * sizeof(WMTabViewItem *));
 276         }
 277
 278         tPtr->items[index] = item;
 279
 280         tPtr->itemCount++;
 281
 282         recalcTabWidth(tPtr);
 283
 284         W_SetTabViewItemParent(item, tPtr);
 285
 286         W_UnmapTabViewItem(item);
 287
 288         if (tPtr->flags.bordered) {
 289                 W_ReparentView(W_TabViewItemView(item), tPtr->view, 1, tPtr->tabHeight + 1);
 290
 291                 W_ResizeView(W_TabViewItemView(item), tPtr->view->size.width - 3,
 292                              tPtr->view->size.height - tPtr->tabHeight - 3);
 293         } else {
 294                 W_ReparentView(W_TabViewItemView(item), tPtr->view, 0, tPtr->tabHeight);
 295
 296                 W_ResizeView(W_TabViewItemView(item), tPtr->view->size.width,
 297                              tPtr->view->size.height - tPtr->tabHeight);
 298         }
 299
 300         if (index == 0) {
 301                 W_MapTabViewItem(item);
 302         }
 303         if (tPtr->delegate && tPtr->delegate->didChangeNumberOfItems)
 304                 (*tPtr->delegate->didChangeNumberOfItems) (tPtr->delegate, tPtr);
 305
 306         if (W_VIEW_REALIZED(tPtr->view))
 307                 paintTabView(tPtr);
 308 }
 309
 310 void WMRemoveTabViewItem(WMTabView * tPtr, WMTabViewItem * item)
 311 {
 312         int i;
 313
 314         for (i = 0; i < tPtr->itemCount; i++) {
 315                 if (tPtr->items[i] == item) {
 316                         if (i < tPtr->itemCount - 1)
 317                                 memmove(&tPtr->items[i], &tPtr->items[i + 1], tPtr->itemCount - i - 1);
 318                         else
 319                                 tPtr->items[i] = NULL;
 320
 321                         W_SetTabViewItemParent(item, NULL);
 322
 323                         tPtr->itemCount--;
 324                         break;
 325                 }
 326         }
 327         if (tPtr->delegate && tPtr->delegate->didChangeNumberOfItems)
 328                 (*tPtr->delegate->didChangeNumberOfItems) (tPtr->delegate, tPtr);
 329 }
 330
 331 static Bool isInside(int x, int y, int width, int height, int px, int py)
 332 {
 333         if (py >= y + height - 3 && py <= y + height && px >= x + py - (y + height - 3)
 334             && px <= x + width - (py - (y + height - 3))) {
 335
 336                 return True;
 337         }
 338         if (py >= y + 3 && py < y + height - 3
 339             && px >= x + 3 + ((y + 3) - py) * 3 / 7 && px <= x + width - 3 - ((y + 3) - py) * 3 / 7) {
 340
 341                 return True;
 342         }
 343         if (py >= y && py < y + 3 && px >= x + 7 + py - y && px <= x + width - 7 - (py - y)) {
 344
 345                 return True;
 346         }
 347         return False;
 348 }
 349
 350 WMTabViewItem *WMTabViewItemAtPoint(WMTabView * tPtr, int x, int y)
 351 {
 352         int i;
 353         int count = tPtr->visibleTabs;
 354         int first = tPtr->firstVisible;
 355
 356         if (tPtr->flags.dontFitAll) {
 357                 i = tPtr->selectedItem - tPtr->firstVisible;
 358                 if (i >= 0 && i < tPtr->visibleTabs
 359                     && isInside(positionOfTab(tPtr, tPtr->selectedItem), 0,
 360                                 W_TabViewItemTabWidth(tPtr->items[tPtr->selectedItem]), tPtr->tabHeight, x, y)) {
 361                         return tPtr->items[tPtr->selectedItem];
 362                 }
 363         } else {
 364                 i = tPtr->selectedItem;
 365                 if (isInside(positionOfTab(tPtr, i), 0,
 366                              W_TabViewItemTabWidth(tPtr->items[i]), tPtr->tabHeight, x, y)) {
 367                         return tPtr->items[i];
 368                 }
 369         }
 370
 371         for (i = first; i < first + count; i++) {
 372                 int pos;
 373
 374                 pos = positionOfTab(tPtr, i);
 375                 if (isInside(pos, 0, W_TabViewItemTabWidth(tPtr->items[i]), tPtr->tabHeight, x, y)) {
 376                         return tPtr->items[i];
 377                 }
 378         }
 379         return NULL;
 380 }
 381
 382 void WMSetTabViewType(WMTabView * tPtr, WMTabViewType type)
 383 {
 384         tPtr->flags.type = type;
 385
 386         if (type != WTTopTabsBevelBorder)
 387                 tPtr->tabHeight = 0;
 388         else
 389                 tPtr->tabHeight = WMFontHeight(tPtr->font) + 3;
 390
 391         if (type == WTNoTabsNoBorder)
 392                 tPtr->flags.bordered = 0;
 393         else
 394                 tPtr->flags.bordered = 1;
 395
 396         rearrange(tPtr);
 397 }
 398
 399 void WMSelectFirstTabViewItem(WMTabView * tPtr)
 400 {
 401         WMSelectTabViewItemAtIndex(tPtr, 0);
 402 }
 403
 404 void WMSelectLastTabViewItem(WMTabView * tPtr)
 405 {
 406         WMSelectTabViewItemAtIndex(tPtr, tPtr->itemCount);
 407 }
 408
 409 void WMSelectNextTabViewItem(WMTabView * tPtr)
 410 {
 411         WMSelectTabViewItemAtIndex(tPtr, tPtr->selectedItem + 1);
 412 }
 413
 414 void WMSelectPreviousTabViewItem(WMTabView * tPtr)
 415 {
 416         WMSelectTabViewItemAtIndex(tPtr, tPtr->selectedItem - 1);
 417 }
 418
 419 WMTabViewItem *WMGetSelectedTabViewItem(WMTabView * tPtr)
 420 {
 421         return tPtr->items[tPtr->selectedItem];
 422 }
 423
 424 void WMSelectTabViewItem(WMTabView * tPtr, WMTabViewItem * item)
 425 {
 426         int i;
 427
 428         for (i = 0; i < tPtr->itemCount; i++) {
 429                 if (tPtr->items[i] == item) {
 430                         WMSelectTabViewItemAtIndex(tPtr, i);
 431                         break;
 432                 }
 433         }
 434 }
 435
 436 void WMSelectTabViewItemAtIndex(WMTabView * tPtr, int index)
 437 {
 438         WMTabViewItem *item;
 439
 440         if (index == tPtr->selectedItem) {
 441                 return;
 442         }
 443
 444         if (index < 0)
 445                 index = 0;
 446         else if (index >= tPtr->itemCount)
 447                 index = tPtr->itemCount - 1;
 448
 449         item = tPtr->items[tPtr->selectedItem];
 450
 451         if (tPtr->delegate && tPtr->delegate->shouldSelectItem)
 452                 if (!(*tPtr->delegate->shouldSelectItem) (tPtr->delegate, tPtr, tPtr->items[index]))
 453                         return;
 454
 455         if (tPtr->delegate && tPtr->delegate->willSelectItem)
 456                 (*tPtr->delegate->willSelectItem) (tPtr->delegate, tPtr, tPtr->items[index]);
 457
 458         W_UnmapTabViewItem(item);
 459
 460         item = tPtr->items[index];
 461
 462         W_MapTabViewItem(item);
 463
 464         tPtr->selectedItem = index;
 465
 466         if (tPtr->delegate && tPtr->delegate->didSelectItem)
 467                 (*tPtr->delegate->didSelectItem) (tPtr->delegate, tPtr, tPtr->items[index]);
 468
 469         paintTabView(tPtr);
 470 }
 471
 472 static void recalcTabWidth(TabView * tPtr)
 473 {
 474         int i;
 475         /*int twidth = W_VIEW(tPtr)->size.width; */
 476         int width;
 477
 478         if (tPtr->flags.uniformTabs) {
 479                 int tabWidth;
 480
 481                 tabWidth = 0;
 482
 483                 for (i = 0; i < tPtr->itemCount; i++) {
 484                         char *str = WMGetTabViewItemLabel(tPtr->items[i]);
 485
 486                         if (str) {
 487                                 width = WMWidthOfString(tPtr->font, str, strlen(str));
 488                                 if (width > tabWidth)
 489                                         tabWidth = width;
 490                         }
 491                 }
 492
 493                 tabWidth = tabWidth + 30;
 494
 495                 for (i = 0; i < tPtr->itemCount; i++)
 496                         W_SetTabViewItemTabWidth(tPtr->items[i], tabWidth);
 497
 498                 tPtr->firstVisible = 0;
 499                 tPtr->visibleTabs = countVisibleTabs(tPtr, -1);
 500                 if (tPtr->visibleTabs < tPtr->itemCount)
 501                         tPtr->flags.dontFitAll = 1;
 502                 else
 503                         tPtr->flags.dontFitAll = 0;
 504         } else {
 505                 for (i = 0; i < tPtr->itemCount; i++) {
 506                         char *str = WMGetTabViewItemLabel(tPtr->items[i]);
 507                         if (!str)
 508                                 continue;
 509
 510                         width = WMWidthOfString(tPtr->font, str, strlen(str)) + 30;
 511
 512                         W_SetTabViewItemTabWidth(tPtr->items[i], width);
 513                 }
 514
 515                 if (countVisibleTabs(tPtr, -1) < tPtr->itemCount) {
 516                         tPtr->flags.dontFitAll = 1;
 517                         tPtr->firstVisible = 0;
 518                         tPtr->visibleTabs = countVisibleTabs(tPtr, tPtr->firstVisible);
 519                 } else {
 520                         tPtr->flags.dontFitAll = 0;
 521                         tPtr->firstVisible = 0;
 522                         tPtr->visibleTabs = tPtr->itemCount;
 523                 }
 524         }
 525 }
 526
 527 static void drawRelief(W_Screen * scr, Drawable d, int x, int y, unsigned int width, unsigned int height)
 528 {
 529         Display *dpy = scr->display;
 530         GC bgc = WMColorGC(scr->black);
 531         GC wgc = WMColorGC(scr->white);
 532         GC dgc = WMColorGC(scr->darkGray);
 533
 534         XDrawLine(dpy, d, wgc, x, y, x, y + height - 1);
 535
 536         XDrawLine(dpy, d, bgc, x, y + height - 1, x + width - 1, y + height - 1);
 537         XDrawLine(dpy, d, dgc, x + 1, y + height - 2, x + width - 2, y + height - 2);
 538
 539         XDrawLine(dpy, d, bgc, x + width - 1, y, x + width - 1, y + height - 1);
 540         XDrawLine(dpy, d, dgc, x + width - 2, y + 1, x + width - 2, y + height - 2);
 541 }
 542
 543 static void drawTab(TabView * tPtr, Drawable d, int x, int y, unsigned width, unsigned height, Bool selected)
 544 {
 545         WMScreen *scr = W_VIEW(tPtr)->screen;
 546         Display *dpy = scr->display;
 547         GC white = WMColorGC(selected ? scr->white : tPtr->lightGray);
 548         GC black = WMColorGC(scr->black);
 549         GC dark = WMColorGC(scr->darkGray);
 550         GC light = WMColorGC(scr->gray);
 551         XPoint trap[8];
 552
 553         trap[0].x = x + (selected ? 0 : 1);
 554         trap[0].y = y + height - (selected ? 0 : 1);
 555
 556         trap[1].x = x + 3;
 557         trap[1].y = y + height - 3;
 558
 559         trap[2].x = x + 10 - 3;
 560         trap[2].y = y + 3;
 561
 562         trap[3].x = x + 10;
 563         trap[3].y = y;
 564
 565         trap[4].x = x + width - 10;
 566         trap[4].y = y;
 567
 568         trap[5].x = x + width - 10 + 3;
 569         trap[5].y = y + 3;
 570
 571         trap[6].x = x + width - 3;
 572         trap[6].y = y + height - 3;
 573
 574         trap[7].x = x + width - (selected ? 0 : 1);
 575         trap[7].y = y + height - (selected ? 0 : 1);
 576
 577         XFillPolygon(dpy, d, selected ? light : WMColorGC(tPtr->tabColor), trap, 8, Convex, CoordModeOrigin);
 578
 579         XDrawLine(dpy, d, white, trap[0].x, trap[0].y, trap[1].x, trap[1].y);
 580         XDrawLine(dpy, d, white, trap[1].x, trap[1].y, trap[2].x, trap[2].y);
 581         XDrawLine(dpy, d, white, trap[2].x, trap[2].y, trap[3].x, trap[3].y);
 582         XDrawLine(dpy, d, white, trap[3].x, trap[3].y, trap[4].x, trap[4].y);
 583         XDrawLine(dpy, d, dark, trap[4].x, trap[4].y, trap[5].x, trap[5].y);
 584         XDrawLine(dpy, d, black, trap[5].x, trap[5].y, trap[6].x, trap[6].y);
 585         XDrawLine(dpy, d, black, trap[6].x, trap[6].y, trap[7].x, trap[7].y);
 586
 587         XDrawLine(dpy, d, selected ? light : WMColorGC(scr->white), trap[0].x, trap[0].y, trap[7].x, trap[7].y);
 588 }
 589
 590 static void paintDot(TabView * tPtr, Drawable d, int x, int y)
 591 {
 592         WMScreen *scr = W_VIEW(tPtr)->screen;
 593         Display *dpy = scr->display;
 594         GC white = WMColorGC(scr->white);
 595         GC black = WMColorGC(scr->black);
 596
 597         XFillRectangle(dpy, d, black, x, y, 2, 2);
 598         XDrawPoint(dpy, d, white, x, y);
 599 }
 600
 601 static void paintTabView(TabView * tPtr)
 602 {
 603         Pixmap buffer;
 604         WMScreen *scr = W_VIEW(tPtr)->screen;
 605         Display *dpy = scr->display;
 606         GC white = WMColorGC(scr->white);
 607         int i;
 608
 609         if (tPtr->flags.type == WTTopTabsBevelBorder) {
 610                 int count = tPtr->visibleTabs;
 611                 int first = tPtr->firstVisible;
 612                 int moreAtLeft;
 613                 int moreAtRight;
 614                 int selectedIsVisible;
 615                 int ty;
 616                 int twidth, theight;
 617
 618                 ty = 2;
 619                 theight = tPtr->tabHeight;
 620
 621                 buffer = XCreatePixmap(dpy, W_VIEW(tPtr)->window,
 622                                        W_VIEW(tPtr)->size.width, theight, W_VIEW(tPtr)->screen->depth);
 623
 624                 XFillRectangle(dpy, buffer, WMColorGC(W_VIEW(tPtr)->backColor),
 625                                0, 0, W_VIEW(tPtr)->size.width, tPtr->tabHeight);
 626
 627                 if (tPtr->flags.dontFitAll) {
 628                         moreAtLeft = first > 0;
 629                         moreAtRight = (first + count) < tPtr->itemCount;
 630                         if (tPtr->selectedItem >= first && tPtr->selectedItem < first + count)
 631                                 selectedIsVisible = 1;
 632                         else
 633                                 selectedIsVisible = 0;
 634                 } else {
 635                         moreAtLeft = 0;
 636                         moreAtRight = 0;
 637                         selectedIsVisible = 1;
 638                 }
 639
 640                 if (moreAtRight) {
 641                         drawTab(tPtr, buffer, positionOfTab(tPtr, first + count), 0,
 642                                 W_VIEW_WIDTH(tPtr->view), theight, False);
 643                 }
 644                 for (i = first + count - 1; i >= first; i--) {
 645                         if (!selectedIsVisible || i != tPtr->selectedItem) {
 646                                 twidth = W_TabViewItemTabWidth(tPtr->items[i]);
 647
 648                                 drawTab(tPtr, buffer, positionOfTab(tPtr, i), 0, twidth, theight, False);
 649                         }
 650                 }
 651                 if (moreAtLeft) {
 652                         drawTab(tPtr, buffer, positionOfTab(tPtr, 0) - 2 * BUTTONED_SIDE_OFFSET,
 653                                 0, BUTTONED_SIDE_OFFSET * 4, theight, False);
 654                 }
 655
 656                 if (selectedIsVisible) {
 657                         int idx = tPtr->selectedItem;
 658
 659                         drawTab(tPtr, buffer, positionOfTab(tPtr, idx),
 660                                 0, W_TabViewItemTabWidth(tPtr->items[idx]), theight, True);
 661
 662                         XDrawLine(dpy, buffer, white, 0, theight - 1, positionOfTab(tPtr, idx), theight - 1);
 663
 664                         XDrawLine(dpy, buffer, white,
 665                                   positionOfTab(tPtr, idx) + W_TabViewItemTabWidth(tPtr->items[idx]),
 666                                   tPtr->tabHeight - 1, W_VIEW_WIDTH(tPtr->view) - 1, tPtr->tabHeight - 1);
 667                 } else {
 668                         XDrawLine(dpy, buffer, white, 0, theight - 1, W_VIEW_WIDTH(tPtr->view), theight - 1);
 669                 }
 670
 671                 for (i = 0; i < count; i++) {
 672                         WMRect rect;
 673
 674                         rect.pos.x = 15 + positionOfTab(tPtr, first + i);
 675                         rect.pos.y = ty;
 676                         rect.size.width = W_TabViewItemTabWidth(tPtr->items[first + i]);
 677                         rect.size.height = theight;
 678                         W_DrawLabel(tPtr->items[first + i], buffer, rect,
 679                                     tPtr->flags.enabled && tPtr->items[first + i]->flags.enabled);
 680                 }
 681
 682                 if (moreAtLeft) {
 683                         paintDot(tPtr, buffer, 4, 10);
 684                         paintDot(tPtr, buffer, 7, 10);
 685                         paintDot(tPtr, buffer, 10, 10);
 686                 }
 687                 if (moreAtRight) {
 688                         int x;
 689
 690                         x = positionOfTab(tPtr, tPtr->firstVisible + tPtr->visibleTabs);
 691
 692                         x = x + (W_VIEW_WIDTH(tPtr->view) - x) / 2;
 693                         paintDot(tPtr, buffer, x + 5, 10);
 694                         paintDot(tPtr, buffer, x + 8, 10);
 695                         paintDot(tPtr, buffer, x + 11, 10);
 696                 }
 697
 698                 XCopyArea(dpy, buffer, W_VIEW(tPtr)->window, scr->copyGC, 0, 0,
 699                           W_VIEW_WIDTH(tPtr->view), theight, 0, 0);
 700
 701                 XFreePixmap(dpy, buffer);
 702         }
 703         switch (tPtr->flags.type) {
 704         case WTTopTabsBevelBorder:
 705                 drawRelief(scr, W_VIEW(tPtr)->window, 0, tPtr->tabHeight - 1,
 706                            W_VIEW(tPtr)->size.width, W_VIEW(tPtr)->size.height - tPtr->tabHeight + 1);
 707                 break;
 708
 709         case WTNoTabsBevelBorder:
 710                 W_DrawRelief(scr, W_VIEW(tPtr)->window, 0, 0, W_VIEW(tPtr)->size.width,
 711                              W_VIEW(tPtr)->size.height, WRRaised);
 712                 break;
 713
 714         case WTNoTabsLineBorder:
 715                 W_DrawRelief(scr, W_VIEW(tPtr)->window, 0, 0, W_VIEW(tPtr)->size.width,
 716                              W_VIEW(tPtr)->size.height, WRSimple);
 717                 break;
 718
 719         case WTNoTabsNoBorder:
 720                 break;
 721         }
 722 }
 723
 724 static void rearrange(TabView * tPtr)
 725 {
 726         int i;
 727         int width, height;
 728         int bordered = tPtr->flags.bordered;
 729
 730         recalcTabWidth(tPtr);
 731
 732         width = tPtr->view->size.width - (bordered ? 3 : 0);
 733         height = tPtr->view->size.height - tPtr->tabHeight - (bordered ? 3 : 0);
 734
 735         for (i = 0; i < tPtr->itemCount; i++) {
 736                 W_MoveView(W_TabViewItemView(tPtr->items[i]), 1 * bordered, tPtr->tabHeight + 1 * bordered);
 737                 W_ResizeView(W_TabViewItemView(tPtr->items[i]), width, height);
 738         }
 739         if (W_VIEW_MAPPED(tPtr->view) && W_VIEW_REALIZED(tPtr->view))
 740                 paintTabView(tPtr);
 741 }
 742
 743 static void didResize(struct W_ViewDelegate *deleg, WMView * view)
 744 {
 745         rearrange(view->self);
 746 }
 747
 748 static void destroyTabView(TabView * tPtr)
 749 {
 750         int i;
 751
 752         for (i = 0; i < tPtr->itemCount; i++) {
 753                 WMSetTabViewItemView(tPtr->items[i], NULL);
 754                 WMDestroyTabViewItem(tPtr->items[i]);
 755         }
 756         wfree(tPtr->items);
 757
 758         WMReleaseColor(tPtr->lightGray);
 759         WMReleaseColor(tPtr->tabColor);
 760         WMReleaseFont(tPtr->font);
 761
 762         wfree(tPtr);
 763 }
 764
 765 /******************************************************************/
 766
 767 static void W_SetTabViewItemParent(WMTabViewItem * item, WMTabView * parent)
 768 {
 769         item->tabView = parent;
 770 }
 771
 772 static void W_DrawLabel(WMTabViewItem * item, Drawable d, WMRect rect, Bool enabled)
 773 {
 774         WMScreen *scr = W_VIEW(item->tabView)->screen;
 775
 776         if (!item->label)
 777                 return;
 778
 779         WMDrawString(scr, d, enabled ? scr->black : scr->darkGray,
 780                      item->tabView->font, rect.pos.x, rect.pos.y, item->label, strlen(item->label));
 781 }
 782
 783 static void W_UnmapTabViewItem(WMTabViewItem * item)
 784 {
 785         wassertr(item->view);
 786
 787         W_UnmapView(item->view);
 788
 789         item->flags.visible = 0;
 790 }
 791
 792 static void W_MapTabViewItem(WMTabViewItem * item)
 793 {
 794         wassertr(item->view);
 795
 796         W_MapView(item->view);
 797         W_RaiseView(item->view);
 798
 799         item->flags.visible = 1;
 800 }
 801
 802 static WMView *W_TabViewItemView(WMTabViewItem * item)
 803 {
 804         return item->view;
 805 }
 806
 807 static int W_TabViewItemTabWidth(WMTabViewItem * item)
 808 {
 809         return item->tabWidth;
 810 }
 811
 812 static void W_SetTabViewItemTabWidth(WMTabViewItem * item, int width)
 813 {
 814         item->tabWidth = width;
 815 }
 816
 817 WMTabViewItem *WMCreateTabViewItemWithIdentifier(int identifier)
 818 {
 819         WMTabViewItem *item;
 820
 821         item = wmalloc(sizeof(WMTabViewItem));
 822         memset(item, 0, sizeof(WMTabViewItem));
 823
 824         item->identifier = identifier;
 825
 826         item->flags.enabled = 1;
 827
 828         return item;
 829 }
 830
 831 WMTabViewItem *WMCreateTabViewItem(int identifier, char *label)
 832 {
 833         WMTabViewItem *item;
 834
 835         item = wmalloc(sizeof(WMTabViewItem));
 836         memset(item, 0, sizeof(WMTabViewItem));
 837
 838         item->identifier = identifier;
 839
 840         item->flags.enabled = 1;
 841
 842         WMSetTabViewItemLabel(item, label);
 843
 844         return item;
 845 }
 846
 847 void WMSetTabViewItemEnabled(WMTabViewItem * tPtr, Bool flag)
 848 {
 849         tPtr->flags.enabled = ((flag == 0) ? 0 : 1);
 850         if (tPtr->tabView && W_VIEW_REALIZED(tPtr->tabView->view))
 851                 paintTabView(tPtr->tabView);
 852 }
 853
 854 int WMGetTabViewItemIdentifier(WMTabViewItem * item)
 855 {
 856         return item->identifier;
 857 }
 858
 859 void WMSetTabViewFont(WMTabView * tPtr, WMFont * font)
 860 {
 861         if (tPtr->font)
 862                 WMReleaseFont(tPtr->font);
 863
 864         tPtr->font = WMRetainFont(font);
 865         tPtr->tabHeight = WMFontHeight(tPtr->font) + 3;
 866         recalcTabWidth(tPtr);
 867 }
 868
 869 void WMSetTabViewItemLabel(WMTabViewItem * item, char *label)
 870 {
 871         if (item->label)
 872                 wfree(item->label);
 873
 874         if (label)
 875                 item->label = wstrdup(label);
 876         else
 877                 item->label = NULL;
 878
 879         if (item->tabView)
 880                 recalcTabWidth(item->tabView);
 881 }
 882
 883 char *WMGetTabViewItemLabel(WMTabViewItem * item)
 884 {
 885         return item->label;
 886 }
 887
 888 void WMSetTabViewItemView(WMTabViewItem * item, WMView * view)
 889 {
 890         item->view = view;
 891 }
 892
 893 WMView *WMGetTabViewItemView(WMTabViewItem * item)
 894 {
 895         return item->view;
 896 }
 897
 898 void WMDestroyTabViewItem(WMTabViewItem * item)
 899 {
 900         if (item->label)
 901                 wfree(item->label);
 902
 903         if (item->view)
 904                 W_DestroyView(item->view);
 905
 906         wfree(item);
 907 }