src/switchpanel.c

   1 /*
   2  *  Window Maker window manager
   3  *
   4  *  Copyright (c) 1997-2004 Alfredo K. Kojima
   5  *
   6  *  This program is free software; you can redistribute it and/or modify
   7  *  it under the terms of the GNU General Public License as published by
   8  *  the Free Software Foundation; either version 2 of the License, or
   9  *  (at your option) any later version.
  10  *
  11  *  This program is distributed in the hope that it will be useful,
  12  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14  *  GNU General Public License for more details.
  15  *
  16  *  You should have received a copy of the GNU General Public License along
  17  *  with this program; if not, write to the Free Software Foundation, Inc.,
  18  *  51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  19  */
  20
  21 #include "wconfig.h"
  22
  23 #include <stdlib.h>
  24 #include <string.h>
  25 #include <sys/time.h>
  26
  27 #include "WindowMaker.h"
  28 #include "screen.h"
  29 #include "framewin.h"
  30 #include "icon.h"
  31 #include "window.h"
  32 #include "defaults.h"
  33 #include "switchpanel.h"
  34 #include "misc.h"
  35 #include "xinerama.h"
  36
  37 extern Atom _XA_WM_IGNORE_FOCUS_EVENTS;
  38
  39 #ifdef SHAPE
  40 #include <X11/extensions/shape.h>
  41
  42 extern Bool wShapeSupported;
  43 #endif
  44
  45 struct SwitchPanel {
  46         WScreen *scr;
  47         WMWindow *win;
  48         WMFrame *iconBox;
  49
  50         WMArray *icons;
  51         WMArray *images;
  52         WMArray *windows;
  53         RImage *bg;
  54         int current;
  55         int firstVisible;
  56         int visibleCount;
  57
  58         WMLabel *label;
  59
  60         RImage *tileTmp;
  61         RImage *tile;
  62
  63         WMFont *font;
  64         WMColor *white;
  65 };
  66
  67 extern WPreferences wPreferences;
  68
  69 #define BORDER_SPACE 10
  70 #define ICON_SIZE 48
  71 #define ICON_TILE_SIZE 64
  72 #define LABEL_HEIGHT 25
  73 #define SCREEN_BORDER_SPACING 2*20
  74 #define SCROLL_STEPS (ICON_TILE_SIZE/2)
  75
  76 static int canReceiveFocus(WWindow *wwin)
  77 {
  78         if (wwin->frame->workspace != wwin->screen_ptr->current_workspace)
  79                 return 0;
  80
  81         if (wPreferences.cycle_active_head_only &&
  82             wGetHeadForWindow(wwin) != wGetHeadForPointerLocation(wwin->screen_ptr))
  83                 return 0;
  84
  85         if (WFLAGP(wwin, no_focusable))
  86                 return 0;
  87
  88         if (!wwin->flags.mapped) {
  89                 if (!wwin->flags.shaded && !wwin->flags.miniaturized && !wwin->flags.hidden)
  90                         return 0;
  91                 else
  92                         return -1;
  93         }
  94
  95         return 1;
  96 }
  97
  98 static Bool sameWindowClass(WWindow *wwin, WWindow *curwin)
  99 {
 100         if (!wwin->wm_class || !curwin->wm_class)
 101                 return False;
 102         if (strcmp(wwin->wm_class, curwin->wm_class))
 103                 return False;
 104
 105         return True;
 106 }
 107
 108 static void changeImage(WSwitchPanel *panel, int idecks, int selected, Bool dim)
 109 {
 110         WMFrame *icon = WMGetFromArray(panel->icons, idecks);
 111         RImage *image = WMGetFromArray(panel->images, idecks);
 112
 113         if (!panel->bg && !panel->tile && !selected)
 114                 WMSetFrameRelief(icon, WRFlat);
 115
 116         if (image && icon) {
 117                 RImage *back;
 118                 int opaq = (dim) ? 75 : 255;
 119                 RImage *tile;
 120                 WMPoint pos;
 121                 Pixmap p;
 122
 123                 if (canReceiveFocus(WMGetFromArray(panel->windows, idecks)) < 0)
 124                         opaq = 50;
 125
 126                 pos = WMGetViewPosition(WMWidgetView(icon));
 127                 back = panel->tileTmp;
 128                 if (panel->bg) {
 129                         RCopyArea(back, panel->bg,
 130                                   BORDER_SPACE + pos.x - panel->firstVisible * ICON_TILE_SIZE,
 131                                   BORDER_SPACE + pos.y, back->width, back->height, 0, 0);
 132                 } else {
 133                         RColor color;
 134                         WMScreen *wscr = WMWidgetScreen(icon);
 135                         color.red = 255;
 136                         color.red = WMRedComponentOfColor(WMGrayColor(wscr)) >> 8;
 137                         color.green = WMGreenComponentOfColor(WMGrayColor(wscr)) >> 8;
 138                         color.blue = WMBlueComponentOfColor(WMGrayColor(wscr)) >> 8;
 139                         RFillImage(back, &color);
 140                 }
 141
 142                 if (selected) {
 143                         tile = panel->tile;
 144                         RCombineArea(back, tile, 0, 0, tile->width, tile->height,
 145                                      (back->width - tile->width) / 2, (back->height - tile->height) / 2);
 146                 }
 147
 148                 RCombineAreaWithOpaqueness(back, image, 0, 0, image->width, image->height,
 149                                            (back->width - image->width) / 2, (back->height - image->height) / 2,
 150                                            opaq);
 151
 152                 RConvertImage(panel->scr->rcontext, back, &p);
 153                 XSetWindowBackgroundPixmap(dpy, WMWidgetXID(icon), p);
 154                 XClearWindow(dpy, WMWidgetXID(icon));
 155                 XFreePixmap(dpy, p);
 156         }
 157
 158         if (!panel->bg && !panel->tile && selected)
 159                 WMSetFrameRelief(icon, WRSimple);
 160 }
 161
 162 static void addIconForWindow(WSwitchPanel *panel, WMWidget *parent, WWindow *wwin, int x, int y)
 163 {
 164         WMFrame *icon = WMCreateFrame(parent);
 165         RImage *image = NULL;
 166
 167         WMSetFrameRelief(icon, WRFlat);
 168         WMResizeWidget(icon, ICON_TILE_SIZE, ICON_TILE_SIZE);
 169         WMMoveWidget(icon, x, y);
 170
 171         if (!WFLAGP(wwin, always_user_icon) && wwin->net_icon_image)
 172                 image = RRetainImage(wwin->net_icon_image);
 173
 174         /* get_icon_image() includes the default icon image */
 175         if (!image)
 176                 image = get_icon_image(panel->scr, wwin->wm_instance, wwin->wm_class, ICON_TILE_SIZE);
 177
 178         /* We must resize the icon size (~64) to the switchpanel icon size (~48) */
 179         image = wIconValidateIconSize(image, ICON_SIZE);
 180
 181         WMAddToArray(panel->images, image);
 182         WMAddToArray(panel->icons, icon);
 183 }
 184
 185 static void scrollIcons(WSwitchPanel *panel, int delta)
 186 {
 187         int nfirst = panel->firstVisible + delta;
 188         int i;
 189         int count = WMGetArrayItemCount(panel->windows);
 190
 191         if (count <= panel->visibleCount)
 192                 return;
 193
 194         if (nfirst < 0)
 195                 nfirst = 0;
 196         else if (nfirst >= count - panel->visibleCount)
 197                 nfirst = count - panel->visibleCount;
 198
 199         if (nfirst == panel->firstVisible)
 200                 return;
 201
 202         WMMoveWidget(panel->iconBox, -nfirst * ICON_TILE_SIZE, 0);
 203
 204         panel->firstVisible = nfirst;
 205
 206         for (i = panel->firstVisible; i < panel->firstVisible + panel->visibleCount; i++)
 207                 changeImage(panel, i, i == panel->current, 0);
 208 }
 209
 210 /*
 211  * 0 1 2
 212  * 3 4 5
 213  * 6 7 8
 214  */
 215 static RImage *assemblePuzzleImage(RImage **images, int width, int height)
 216 {
 217         RImage *img = RCreateImage(width, height, 1);
 218         RImage *tmp;
 219         int tw, th;
 220         RColor color;
 221         if (!img)
 222                 return NULL;
 223
 224         color.red = 0;
 225         color.green = 0;
 226         color.blue = 0;
 227         color.alpha = 255;
 228
 229         RFillImage(img, &color);
 230
 231         tw = width - images[0]->width - images[2]->width;
 232         th = height - images[0]->height - images[6]->height;
 233
 234         if (tw <= 0 || th <= 0)
 235                 return NULL;
 236
 237         /* top */
 238         if (tw > 0) {
 239                 tmp = RSmoothScaleImage(images[1], tw, images[1]->height);
 240                 RCopyArea(img, tmp, 0, 0, tmp->width, tmp->height, images[0]->width, 0);
 241                 RReleaseImage(tmp);
 242         }
 243         /* bottom */
 244         if (tw > 0) {
 245                 tmp = RSmoothScaleImage(images[7], tw, images[7]->height);
 246                 RCopyArea(img, tmp, 0, 0, tmp->width, tmp->height, images[6]->width, height - images[6]->height);
 247                 RReleaseImage(tmp);
 248         }
 249         /* left */
 250         if (th > 0) {
 251                 tmp = RSmoothScaleImage(images[3], images[3]->width, th);
 252                 RCopyArea(img, tmp, 0, 0, tmp->width, tmp->height, 0, images[0]->height);
 253                 RReleaseImage(tmp);
 254         }
 255         /* right */
 256         if (th > 0) {
 257                 tmp = RSmoothScaleImage(images[5], images[5]->width, th);
 258                 RCopyArea(img, tmp, 0, 0, tmp->width, tmp->height, width - images[5]->width, images[2]->height);
 259                 RReleaseImage(tmp);
 260         }
 261         /* center */
 262         if (tw > 0 && th > 0) {
 263                 tmp = RSmoothScaleImage(images[4], tw, th);
 264                 RCopyArea(img, tmp, 0, 0, tmp->width, tmp->height, images[0]->width, images[0]->height);
 265                 RReleaseImage(tmp);
 266         }
 267
 268         /* corners */
 269         RCopyArea(img, images[0], 0, 0, images[0]->width, images[0]->height, 0, 0);
 270         RCopyArea(img, images[2], 0, 0, images[2]->width, images[2]->height, width - images[2]->width, 0);
 271         RCopyArea(img, images[6], 0, 0, images[6]->width, images[6]->height, 0, height - images[6]->height);
 272         RCopyArea(img, images[8], 0, 0, images[8]->width, images[8]->height,
 273                   width - images[8]->width, height - images[8]->height);
 274
 275         return img;
 276 }
 277
 278 static RImage *createBackImage(int width, int height)
 279 {
 280         return assemblePuzzleImage(wPreferences.swbackImage, width, height);
 281 }
 282
 283 static RImage *getTile(void)
 284 {
 285         RImage *stile;
 286
 287         if (!wPreferences.swtileImage)
 288                 return NULL;
 289
 290         stile = RScaleImage(wPreferences.swtileImage, ICON_TILE_SIZE, ICON_TILE_SIZE);
 291         if (!stile)
 292                 return wPreferences.swtileImage;
 293
 294         return stile;
 295 }
 296
 297 static void drawTitle(WSwitchPanel *panel, int idecks, char *title)
 298 {
 299         char *ntitle;
 300         int width = WMWidgetWidth(panel->win);
 301         int x;
 302
 303         if (title)
 304                 ntitle = ShrinkString(panel->font, title, width - 2 * BORDER_SPACE);
 305         else
 306                 ntitle = NULL;
 307
 308         if (panel->bg) {
 309                 if (ntitle) {
 310                         if (strcmp(ntitle, title) != 0) {
 311                                 x = BORDER_SPACE;
 312                         } else {
 313                                 int w = WMWidthOfString(panel->font, ntitle, strlen(ntitle));
 314
 315                                 x = BORDER_SPACE + (idecks - panel->firstVisible) * ICON_TILE_SIZE +
 316                                     ICON_TILE_SIZE / 2 - w / 2;
 317                                 if (x < BORDER_SPACE)
 318                                         x = BORDER_SPACE;
 319                                 else if (x + w > width - BORDER_SPACE)
 320                                         x = width - BORDER_SPACE - w;
 321                         }
 322                 }
 323
 324                 XClearWindow(dpy, WMWidgetXID(panel->win));
 325                 if (ntitle)
 326                         WMDrawString(panel->scr->wmscreen,
 327                                      WMWidgetXID(panel->win),
 328                                      panel->white, panel->font,
 329                                      x,
 330                                      WMWidgetHeight(panel->win) - BORDER_SPACE - LABEL_HEIGHT +
 331                                      WMFontHeight(panel->font) / 2, ntitle, strlen(ntitle));
 332         } else {
 333                 if (ntitle)
 334                         WMSetLabelText(panel->label, ntitle);
 335         }
 336
 337         if (ntitle)
 338                 free(ntitle);
 339 }
 340
 341 static WMArray *makeWindowListArray(WWindow *curwin, int include_unmapped, Bool class_only)
 342 {
 343         WMArray *windows = WMCreateArray(10);
 344         int fl;
 345         WWindow *wwin;
 346
 347         for (fl = 0; fl < 2; fl++) {
 348                 for (wwin = curwin; wwin; wwin = wwin->prev) {
 349                         if (((!fl && canReceiveFocus(wwin) > 0) || (fl && canReceiveFocus(wwin) < 0)) &&
 350                             (wwin->flags.mapped || include_unmapped)) {
 351                                 if (class_only)
 352                                         if (!sameWindowClass(wwin, curwin))
 353                                                 continue;
 354
 355                                 if (!WFLAGP(wwin, skip_switchpanel))
 356                                         WMAddToArray(windows, wwin);
 357                         }
 358                 }
 359                 wwin = curwin;
 360                 /* start over from the beginning of the list */
 361                 while (wwin->next)
 362                         wwin = wwin->next;
 363
 364                 for (wwin = curwin; wwin && wwin != curwin; wwin = wwin->prev) {
 365                         if (((!fl && canReceiveFocus(wwin) > 0) || (fl && canReceiveFocus(wwin) < 0)) &&
 366                             (wwin->flags.mapped || include_unmapped)) {
 367                                 if (class_only)
 368                                     if (!sameWindowClass(wwin, curwin))
 369                                         continue;
 370                                 if (!WFLAGP(wwin, skip_switchpanel))
 371                                 WMAddToArray(windows, wwin);
 372                         }
 373                 }
 374         }
 375
 376         return windows;
 377 }
 378
 379 WSwitchPanel *wInitSwitchPanel(WScreen *scr, WWindow *curwin, Bool class_only)
 380 {
 381         WWindow *wwin;
 382         WSwitchPanel *panel = wmalloc(sizeof(WSwitchPanel));
 383         WMFrame *viewport;
 384         int i, width, height, iconsThatFitCount, count;
 385         WMRect rect = wGetRectForHead(scr, wGetHeadForPointerLocation(scr));
 386
 387         panel->scr = scr;
 388         panel->windows = makeWindowListArray(curwin, wPreferences.swtileImage != NULL, class_only);
 389         count = WMGetArrayItemCount(panel->windows);
 390
 391         if (count == 0) {
 392                 WMFreeArray(panel->windows);
 393                 wfree(panel);
 394                 return NULL;
 395         }
 396
 397         width = ICON_TILE_SIZE * count;
 398         iconsThatFitCount = count;
 399
 400         if (width > rect.size.width) {
 401                 iconsThatFitCount = (rect.size.width - SCREEN_BORDER_SPACING) / ICON_TILE_SIZE;
 402                 width = iconsThatFitCount * ICON_TILE_SIZE;
 403         }
 404
 405         panel->visibleCount = iconsThatFitCount;
 406
 407         if (!wPreferences.swtileImage)
 408                 return panel;
 409
 410         height = LABEL_HEIGHT + ICON_TILE_SIZE;
 411
 412         panel->tileTmp = RCreateImage(ICON_TILE_SIZE, ICON_TILE_SIZE, 1);
 413         panel->tile = getTile();
 414         if (panel->tile && wPreferences.swbackImage[8])
 415                 panel->bg = createBackImage(width + 2 * BORDER_SPACE, height + 2 * BORDER_SPACE);
 416
 417         if (!panel->tileTmp || !panel->tile) {
 418                 if (panel->bg)
 419                         RReleaseImage(panel->bg);
 420                 panel->bg = NULL;
 421                 if (panel->tile)
 422                         RReleaseImage(panel->tile);
 423                 panel->tile = NULL;
 424                 if (panel->tileTmp)
 425                         RReleaseImage(panel->tileTmp);
 426                 panel->tileTmp = NULL;
 427         }
 428
 429         panel->white = WMWhiteColor(scr->wmscreen);
 430         panel->font = WMBoldSystemFontOfSize(scr->wmscreen, 12);
 431         panel->icons = WMCreateArray(count);
 432         panel->images = WMCreateArray(count);
 433
 434         panel->win = WMCreateWindow(scr->wmscreen, "");
 435
 436         if (!panel->bg) {
 437                 WMFrame *frame = WMCreateFrame(panel->win);
 438                 WMColor *darkGray = WMDarkGrayColor(scr->wmscreen);
 439                 WMSetFrameRelief(frame, WRSimple);
 440                 WMSetViewExpandsToParent(WMWidgetView(frame), 0, 0, 0, 0);
 441
 442                 panel->label = WMCreateLabel(panel->win);
 443                 WMResizeWidget(panel->label, width, LABEL_HEIGHT);
 444                 WMMoveWidget(panel->label, BORDER_SPACE, BORDER_SPACE + ICON_TILE_SIZE + 5);
 445                 WMSetLabelRelief(panel->label, WRSimple);
 446                 WMSetWidgetBackgroundColor(panel->label, darkGray);
 447                 WMSetLabelFont(panel->label, panel->font);
 448                 WMSetLabelTextColor(panel->label, panel->white);
 449
 450                 WMReleaseColor(darkGray);
 451                 height += 5;
 452         }
 453
 454         WMResizeWidget(panel->win, width + 2 * BORDER_SPACE, height + 2 * BORDER_SPACE);
 455
 456         viewport = WMCreateFrame(panel->win);
 457         WMResizeWidget(viewport, width, ICON_TILE_SIZE);
 458         WMMoveWidget(viewport, BORDER_SPACE, BORDER_SPACE);
 459         WMSetFrameRelief(viewport, WRFlat);
 460
 461         panel->iconBox = WMCreateFrame(viewport);
 462         WMMoveWidget(panel->iconBox, 0, 0);
 463         WMResizeWidget(panel->iconBox, ICON_TILE_SIZE * count, ICON_TILE_SIZE);
 464         WMSetFrameRelief(panel->iconBox, WRFlat);
 465
 466         WM_ITERATE_ARRAY(panel->windows, wwin, i) {
 467                 addIconForWindow(panel, panel->iconBox, wwin, i * ICON_TILE_SIZE, 0);
 468         }
 469
 470         WMMapSubwidgets(panel->win);
 471         WMRealizeWidget(panel->win);
 472
 473         WM_ITERATE_ARRAY(panel->windows, wwin, i) {
 474                 changeImage(panel, i, 0, False);
 475         }
 476
 477         if (panel->bg) {
 478                 Pixmap pixmap, mask;
 479
 480                 RConvertImageMask(scr->rcontext, panel->bg, &pixmap, &mask, 250);
 481
 482                 XSetWindowBackgroundPixmap(dpy, WMWidgetXID(panel->win), pixmap);
 483
 484 #ifdef SHAPE
 485                 if (mask && wShapeSupported)
 486                         XShapeCombineMask(dpy, WMWidgetXID(panel->win), ShapeBounding, 0, 0, mask, ShapeSet);
 487 #endif
 488                 if (pixmap)
 489                         XFreePixmap(dpy, pixmap);
 490
 491                 if (mask)
 492                         XFreePixmap(dpy, mask);
 493         }
 494
 495         {
 496                 WMPoint center;
 497                 center = wGetPointToCenterRectInHead(scr, wGetHeadForPointerLocation(scr),
 498                                                      width + 2 * BORDER_SPACE, height + 2 * BORDER_SPACE);
 499                 WMMoveWidget(panel->win, center.x, center.y);
 500         }
 501
 502         panel->current = WMGetFirstInArray(panel->windows, curwin);
 503         if (panel->current >= 0)
 504                 changeImage(panel, panel->current, 1, False);
 505
 506         WMMapWidget(panel->win);
 507
 508         return panel;
 509 }
 510
 511 void wSwitchPanelDestroy(WSwitchPanel *panel)
 512 {
 513         int i;
 514         RImage *image;
 515
 516         if (panel->win) {
 517                 Window info_win = panel->scr->info_window;
 518                 XEvent ev;
 519                 ev.xclient.type = ClientMessage;
 520                 ev.xclient.message_type = _XA_WM_IGNORE_FOCUS_EVENTS;
 521                 ev.xclient.format = 32;
 522                 ev.xclient.data.l[0] = True;
 523
 524                 XSendEvent(dpy, info_win, True, EnterWindowMask, &ev);
 525                 WMUnmapWidget(panel->win);
 526
 527                 ev.xclient.data.l[0] = False;
 528                 XSendEvent(dpy, info_win, True, EnterWindowMask, &ev);
 529         }
 530
 531         if (panel->images) {
 532                 WM_ITERATE_ARRAY(panel->images, image, i) {
 533                         if (image)
 534                                 RReleaseImage(image);
 535                 }
 536                 WMFreeArray(panel->images);
 537         }
 538
 539         if (panel->win)
 540                 WMDestroyWidget(panel->win);
 541
 542         if (panel->icons)
 543                 WMFreeArray(panel->icons);
 544
 545         WMFreeArray(panel->windows);
 546
 547         if (panel->tile)
 548                 RReleaseImage(panel->tile);
 549
 550         if (panel->tileTmp)
 551                 RReleaseImage(panel->tileTmp);
 552
 553         if (panel->bg)
 554                 RReleaseImage(panel->bg);
 555
 556         if (panel->font)
 557                 WMReleaseFont(panel->font);
 558
 559         if (panel->white)
 560                 WMReleaseColor(panel->white);
 561
 562         wfree(panel);
 563 }
 564
 565 WWindow *wSwitchPanelSelectNext(WSwitchPanel *panel, int back, int ignore_minimized, Bool class_only)
 566 {
 567         WWindow *wwin, *curwin, *tmpwin;
 568         int count = WMGetArrayItemCount(panel->windows);
 569         int orig = panel->current;
 570         int i;
 571
 572         if (count == 0)
 573                 return NULL;
 574
 575         if (panel->win)
 576                 changeImage(panel, panel->current, 0, False);
 577
 578         if (!wPreferences.cycle_ignore_minimized)
 579                 ignore_minimized = False;
 580
 581         if (ignore_minimized && canReceiveFocus(WMGetFromArray(panel->windows, (count + panel->current) % count)) < 0)
 582                 ignore_minimized = False;
 583
 584         curwin = WMGetFromArray(panel->windows, orig);
 585         do {
 586                 do {
 587                         if (back)
 588                                 panel->current--;
 589                         else
 590                                 panel->current++;
 591
 592                         panel->current= (count + panel->current) % count;
 593                         wwin = WMGetFromArray(panel->windows, panel->current);
 594
 595                         if (!class_only)
 596                                 break;
 597                         if (panel->current == orig)
 598                                 break;
 599                 } while (!sameWindowClass(wwin, curwin));
 600         } while (ignore_minimized && panel->current != orig && canReceiveFocus(wwin) < 0);
 601
 602         WM_ITERATE_ARRAY(panel->windows, tmpwin, i) {
 603                 if (!class_only || sameWindowClass(tmpwin, curwin))
 604                         changeImage(panel, i, 0, False);
 605                 else
 606                         changeImage(panel, i, 0, True);
 607
 608         }
 609
 610         if (panel->current < panel->firstVisible)
 611                 scrollIcons(panel, panel->current - panel->firstVisible);
 612         else if (panel->current - panel->firstVisible >= panel->visibleCount)
 613                 scrollIcons(panel, panel->current - panel->firstVisible - panel->visibleCount + 1);
 614
 615         if (panel->win) {
 616                 drawTitle(panel, panel->current, wwin->frame->title);
 617
 618                 changeImage(panel, panel->current, 1, False);
 619         }
 620
 621         return wwin;
 622 }
 623
 624 WWindow *wSwitchPanelSelectFirst(WSwitchPanel *panel, int back)
 625 {
 626         WWindow *wwin;
 627         int count = WMGetArrayItemCount(panel->windows);
 628         int i;
 629
 630         if (count == 0)
 631                 return NULL;
 632
 633         if (panel->win) {
 634                 WM_ITERATE_ARRAY(panel->windows, wwin, i) {
 635                         changeImage(panel, i, 0, False);
 636                 }
 637         }
 638
 639         if (back) {
 640                 panel->current = count - 1;
 641                 scrollIcons(panel, count);
 642         } else {
 643                 panel->current = 0;
 644                 scrollIcons(panel, -count);
 645         }
 646
 647         wwin = WMGetFromArray(panel->windows, panel->current);
 648
 649         if (panel->win) {
 650                 drawTitle(panel, panel->current, wwin->frame->title);
 651                 changeImage(panel, panel->current, 1, False);
 652         }
 653
 654         return wwin;
 655 }
 656
 657 WWindow *wSwitchPanelHandleEvent(WSwitchPanel *panel, XEvent *event)
 658 {
 659         WMFrame *icon;
 660         int i;
 661         int focus = -1;
 662
 663         if (!panel->win)
 664                 return NULL;
 665
 666         if (event->type == MotionNotify) {
 667                 WM_ITERATE_ARRAY(panel->icons, icon, i) {
 668                         if (WMWidgetXID(icon) == event->xmotion.window) {
 669                                 focus = i;
 670                                 break;
 671                         }
 672                 }
 673         }
 674
 675         if (focus >= 0 && panel->current != focus) {
 676                 WWindow *wwin;
 677
 678                 WM_ITERATE_ARRAY(panel->windows, wwin, i) {
 679                         changeImage(panel, i, 0, False);
 680                 }
 681                 changeImage(panel, focus, 1, False);
 682                 panel->current = focus;
 683
 684                 wwin = WMGetFromArray(panel->windows, focus);
 685
 686                 drawTitle(panel, panel->current, wwin->frame->title);
 687
 688                 return wwin;
 689         }
 690
 691         return NULL;
 692 }
 693
 694 Window wSwitchPanelGetWindow(WSwitchPanel *swpanel)
 695 {
 696         if (!swpanel->win)
 697                 return None;
 698
 699         return WMWidgetXID(swpanel->win);
 700 }