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 <stdint.h>
  24 #include <stdlib.h>
  25 #include <string.h>
  26 #include <sys/time.h>
  27
  28 #include "WindowMaker.h"
  29 #include "screen.h"
  30 #include "framewin.h"
  31 #include "icon.h"
  32 #include "window.h"
  33 #include "defaults.h"
  34 #include "switchpanel.h"
  35 #include "misc.h"
  36 #include "xinerama.h"
  37
  38
  39 #ifdef USE_XSHAPE
  40 #include <X11/extensions/shape.h>
  41 #endif
  42
  43 struct SwitchPanel {
  44         WScreen *scr;
  45         WMWindow *win;
  46         WMFrame *iconBox;
  47
  48         WMArray *icons;
  49         WMArray *images;
  50         WMArray *windows;
  51         WMArray *flags;
  52         RImage *bg;
  53         int current;
  54         int firstVisible;
  55         int visibleCount;
  56
  57         WMLabel *label;
  58
  59         RImage *tileTmp;
  60         RImage *tile;
  61
  62         WMFont *font;
  63         WMColor *white;
  64 };
  65
  66 #define BORDER_SPACE 10
  67 #define ICON_SIZE 48
  68 #define ICON_TILE_SIZE 64
  69 #define LABEL_HEIGHT 25
  70 #define SCREEN_BORDER_SPACING 2*20
  71 #define SCROLL_STEPS (ICON_TILE_SIZE/2)
  72
  73 #define ICON_SELECTED (1<<1)
  74 #define ICON_DIM (1<<2)
  75
  76 static int canReceiveFocus(WWindow *wwin)
  77 {
  78         if (wwin->frame->workspace != w_global.workspace.current)
  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, Bool force)
 109 {
 110         WMFrame *icon = NULL;
 111         RImage *image = NULL;
 112         int flags;
 113         int desired = 0;
 114
 115         /* This whole function is a no-op if we aren't drawing the panel */
 116         if (!wPreferences.swtileImage)
 117                 return;
 118
 119         icon = WMGetFromArray(panel->icons, idecks);
 120         image = WMGetFromArray(panel->images, idecks);
 121         flags = (int) (uintptr_t) WMGetFromArray(panel->flags, idecks);
 122
 123         if (selected)
 124                 desired |= ICON_SELECTED;
 125         if (dim)
 126                 desired |= ICON_DIM;
 127
 128         if (flags == desired && !force)
 129                 return;
 130
 131         WMReplaceInArray(panel->flags, idecks, (void *) (uintptr_t) desired);
 132
 133         if (!panel->bg && !panel->tile && !selected)
 134                 WMSetFrameRelief(icon, WRFlat);
 135
 136         if (image && icon) {
 137                 RImage *back;
 138                 int opaq = (dim) ? 75 : 255;
 139                 RImage *tile;
 140                 WMPoint pos;
 141                 Pixmap p;
 142
 143                 if (canReceiveFocus(WMGetFromArray(panel->windows, idecks)) < 0)
 144                         opaq = 50;
 145
 146                 pos = WMGetViewPosition(WMWidgetView(icon));
 147                 back = panel->tileTmp;
 148                 if (panel->bg) {
 149                         RCopyArea(back, panel->bg,
 150                                   BORDER_SPACE + pos.x - panel->firstVisible * ICON_TILE_SIZE,
 151                                   BORDER_SPACE + pos.y, back->width, back->height, 0, 0);
 152                 } else {
 153                         RColor color;
 154                         WMScreen *wscr = WMWidgetScreen(icon);
 155                         color.red = 255;
 156                         color.red = WMRedComponentOfColor(WMGrayColor(wscr)) >> 8;
 157                         color.green = WMGreenComponentOfColor(WMGrayColor(wscr)) >> 8;
 158                         color.blue = WMBlueComponentOfColor(WMGrayColor(wscr)) >> 8;
 159                         RFillImage(back, &color);
 160                 }
 161
 162                 if (selected) {
 163                         tile = panel->tile;
 164                         RCombineArea(back, tile, 0, 0, tile->width, tile->height,
 165                                      (back->width - tile->width) / 2, (back->height - tile->height) / 2);
 166                 }
 167
 168                 RCombineAreaWithOpaqueness(back, image, 0, 0, image->width, image->height,
 169                                            (back->width - image->width) / 2, (back->height - image->height) / 2,
 170                                            opaq);
 171
 172                 RConvertImage(panel->scr->rcontext, back, &p);
 173                 XSetWindowBackgroundPixmap(dpy, WMWidgetXID(icon), p);
 174                 XClearWindow(dpy, WMWidgetXID(icon));
 175                 XFreePixmap(dpy, p);
 176         }
 177
 178         if (!panel->bg && !panel->tile && selected)
 179                 WMSetFrameRelief(icon, WRSimple);
 180 }
 181
 182 static void addIconForWindow(WSwitchPanel *panel, WMWidget *parent, WWindow *wwin, int x, int y)
 183 {
 184         WMFrame *icon = WMCreateFrame(parent);
 185         RImage *image = NULL;
 186
 187         WMSetFrameRelief(icon, WRFlat);
 188         WMResizeWidget(icon, ICON_TILE_SIZE, ICON_TILE_SIZE);
 189         WMMoveWidget(icon, x, y);
 190
 191         if (!WFLAGP(wwin, always_user_icon) && wwin->net_icon_image)
 192                 image = RRetainImage(wwin->net_icon_image);
 193
 194         /* get_icon_image() includes the default icon image */
 195         if (!image)
 196                 image = get_icon_image(panel->scr, wwin->wm_instance, wwin->wm_class, ICON_TILE_SIZE);
 197
 198         /* We must resize the icon size (~64) to the switch panel icon size (~48) */
 199         image = wIconValidateIconSize(image, ICON_SIZE);
 200
 201         WMAddToArray(panel->images, image);
 202         WMAddToArray(panel->icons, icon);
 203 }
 204
 205 static void scrollIcons(WSwitchPanel *panel, int delta)
 206 {
 207         int nfirst = panel->firstVisible + delta;
 208         int i;
 209         int count = WMGetArrayItemCount(panel->windows);
 210         Bool dim;
 211
 212         if (count <= panel->visibleCount)
 213                 return;
 214
 215         if (nfirst < 0)
 216                 nfirst = 0;
 217         else if (nfirst >= count - panel->visibleCount)
 218                 nfirst = count - panel->visibleCount;
 219
 220         if (nfirst == panel->firstVisible)
 221                 return;
 222
 223         WMMoveWidget(panel->iconBox, -nfirst * ICON_TILE_SIZE, 0);
 224
 225         panel->firstVisible = nfirst;
 226
 227         for (i = panel->firstVisible; i < panel->firstVisible + panel->visibleCount; i++) {
 228                 if (i == panel->current)
 229                         continue;
 230                 dim = ((int) (uintptr_t) WMGetFromArray(panel->flags, i) & ICON_DIM);
 231                 changeImage(panel, i, 0, dim, True);
 232         }
 233 }
 234
 235 /*
 236  * 0 1 2
 237  * 3 4 5
 238  * 6 7 8
 239  */
 240 static RImage *assemblePuzzleImage(RImage **images, int width, int height)
 241 {
 242         RImage *img;
 243         RImage *tmp;
 244         int tw, th;
 245         RColor color;
 246
 247         tw = width - images[0]->width - images[2]->width;
 248         th = height - images[0]->height - images[6]->height;
 249
 250         if (tw <= 0 || th <= 0)
 251                 return NULL;
 252
 253         img = RCreateImage(width, height, 1);
 254         if (!img)
 255                 return NULL;
 256
 257         color.red   =   0;
 258         color.green =   0;
 259         color.blue  =   0;
 260         color.alpha = 255;
 261         RFillImage(img, &color);
 262
 263         /* top */
 264         tmp = RSmoothScaleImage(images[1], tw, images[1]->height);
 265         RCopyArea(img, tmp, 0, 0, tmp->width, tmp->height, images[0]->width, 0);
 266         RReleaseImage(tmp);
 267
 268         /* bottom */
 269         tmp = RSmoothScaleImage(images[7], tw, images[7]->height);
 270         RCopyArea(img, tmp, 0, 0, tmp->width, tmp->height, images[6]->width, height - images[6]->height);
 271         RReleaseImage(tmp);
 272
 273         /* left */
 274         tmp = RSmoothScaleImage(images[3], images[3]->width, th);
 275         RCopyArea(img, tmp, 0, 0, tmp->width, tmp->height, 0, images[0]->height);
 276         RReleaseImage(tmp);
 277
 278         /* right */
 279         tmp = RSmoothScaleImage(images[5], images[5]->width, th);
 280         RCopyArea(img, tmp, 0, 0, tmp->width, tmp->height, width - images[5]->width, images[2]->height);
 281         RReleaseImage(tmp);
 282
 283         /* center */
 284         tmp = RSmoothScaleImage(images[4], tw, th);
 285         RCopyArea(img, tmp, 0, 0, tmp->width, tmp->height, images[0]->width, images[0]->height);
 286         RReleaseImage(tmp);
 287
 288         /* corners */
 289         RCopyArea(img, images[0], 0, 0, images[0]->width, images[0]->height, 0, 0);
 290         RCopyArea(img, images[2], 0, 0, images[2]->width, images[2]->height, width - images[2]->width, 0);
 291         RCopyArea(img, images[6], 0, 0, images[6]->width, images[6]->height, 0, height - images[6]->height);
 292         RCopyArea(img, images[8], 0, 0, images[8]->width, images[8]->height,
 293                   width - images[8]->width, height - images[8]->height);
 294
 295         return img;
 296 }
 297
 298 static RImage *createBackImage(int width, int height)
 299 {
 300         return assemblePuzzleImage(wPreferences.swbackImage, width, height);
 301 }
 302
 303 static RImage *getTile(void)
 304 {
 305         RImage *stile;
 306
 307         if (!wPreferences.swtileImage)
 308                 return NULL;
 309
 310         stile = RScaleImage(wPreferences.swtileImage, ICON_TILE_SIZE, ICON_TILE_SIZE);
 311         if (!stile)
 312                 return wPreferences.swtileImage;
 313
 314         return stile;
 315 }
 316
 317 static void drawTitle(WSwitchPanel *panel, int idecks, const char *title)
 318 {
 319         char *ntitle;
 320         int width = WMWidgetWidth(panel->win);
 321         int x;
 322
 323         if (title)
 324                 ntitle = ShrinkString(panel->font, title, width - 2 * BORDER_SPACE);
 325         else
 326                 ntitle = NULL;
 327
 328         if (panel->bg) {
 329                 if (ntitle) {
 330                         if (strcmp(ntitle, title) != 0) {
 331                                 x = BORDER_SPACE;
 332                         } else {
 333                                 int w = WMWidthOfString(panel->font, ntitle, strlen(ntitle));
 334
 335                                 x = BORDER_SPACE + (idecks - panel->firstVisible) * ICON_TILE_SIZE +
 336                                     ICON_TILE_SIZE / 2 - w / 2;
 337                                 if (x < BORDER_SPACE)
 338                                         x = BORDER_SPACE;
 339                                 else if (x + w > width - BORDER_SPACE)
 340                                         x = width - BORDER_SPACE - w;
 341                         }
 342                 }
 343
 344                 XClearWindow(dpy, WMWidgetXID(panel->win));
 345                 if (ntitle)
 346                         WMDrawString(panel->scr->wmscreen,
 347                                      WMWidgetXID(panel->win),
 348                                      panel->white, panel->font,
 349                                      x,
 350                                      WMWidgetHeight(panel->win) - BORDER_SPACE - LABEL_HEIGHT +
 351                                      WMFontHeight(panel->font) / 2, ntitle, strlen(ntitle));
 352         } else {
 353                 if (ntitle)
 354                         WMSetLabelText(panel->label, ntitle);
 355         }
 356
 357         if (ntitle)
 358                 free(ntitle);
 359 }
 360
 361 static WMArray *makeWindowListArray(WWindow *curwin, int include_unmapped, Bool class_only)
 362 {
 363         WMArray *windows = WMCreateArray(10);
 364         int fl;
 365         WWindow *wwin;
 366
 367         for (fl = 0; fl < 2; fl++) {
 368                 for (wwin = curwin; wwin; wwin = wwin->prev) {
 369                         if (((!fl && canReceiveFocus(wwin) > 0) || (fl && canReceiveFocus(wwin) < 0)) &&
 370                             (wwin->flags.mapped || wwin->flags.shaded || include_unmapped)) {
 371                                 if (class_only)
 372                                         if (!sameWindowClass(wwin, curwin))
 373                                                 continue;
 374
 375                                 if (!WFLAGP(wwin, skip_switchpanel))
 376                                         WMAddToArray(windows, wwin);
 377                         }
 378                 }
 379                 wwin = curwin;
 380                 /* start over from the beginning of the list */
 381                 while (wwin->next)
 382                         wwin = wwin->next;
 383
 384                 for (wwin = curwin; wwin && wwin != curwin; wwin = wwin->prev) {
 385                         if (((!fl && canReceiveFocus(wwin) > 0) || (fl && canReceiveFocus(wwin) < 0)) &&
 386                             (wwin->flags.mapped || wwin->flags.shaded || include_unmapped)) {
 387                                 if (class_only)
 388                                     if (!sameWindowClass(wwin, curwin))
 389                                         continue;
 390                                 if (!WFLAGP(wwin, skip_switchpanel))
 391                                 WMAddToArray(windows, wwin);
 392                         }
 393                 }
 394         }
 395
 396         return windows;
 397 }
 398
 399 static WMArray *makeWindowFlagsArray(int count)
 400 {
 401         WMArray *flags = WMCreateArray(count);
 402         int i;
 403
 404         for (i = 0; i < count; i++)
 405                 WMAddToArray(flags, (void *) 0);
 406
 407         return flags;
 408 }
 409
 410 WSwitchPanel *wInitSwitchPanel(WScreen *scr, WWindow *curwin, Bool class_only)
 411 {
 412         WWindow *wwin;
 413         WSwitchPanel *panel = wmalloc(sizeof(WSwitchPanel));
 414         WMFrame *viewport;
 415         int i, width, height, iconsThatFitCount, count;
 416         WMRect rect = wGetRectForHead(scr, wGetHeadForPointerLocation(scr));
 417
 418         panel->scr = scr;
 419         panel->windows = makeWindowListArray(curwin, wPreferences.swtileImage != NULL, class_only);
 420         count = WMGetArrayItemCount(panel->windows);
 421         if (count)
 422                 panel->flags = makeWindowFlagsArray(count);
 423
 424         if (count == 0) {
 425                 WMFreeArray(panel->windows);
 426                 wfree(panel);
 427                 return NULL;
 428         }
 429
 430         width = ICON_TILE_SIZE * count;
 431         iconsThatFitCount = count;
 432
 433         if (width > rect.size.width) {
 434                 iconsThatFitCount = (rect.size.width - SCREEN_BORDER_SPACING) / ICON_TILE_SIZE;
 435                 width = iconsThatFitCount * ICON_TILE_SIZE;
 436         }
 437
 438         panel->visibleCount = iconsThatFitCount;
 439
 440         if (!wPreferences.swtileImage)
 441                 return panel;
 442
 443         height = LABEL_HEIGHT + ICON_TILE_SIZE;
 444
 445         panel->tileTmp = RCreateImage(ICON_TILE_SIZE, ICON_TILE_SIZE, 1);
 446         panel->tile = getTile();
 447         if (panel->tile && wPreferences.swbackImage[8])
 448                 panel->bg = createBackImage(width + 2 * BORDER_SPACE, height + 2 * BORDER_SPACE);
 449
 450         if (!panel->tileTmp || !panel->tile) {
 451                 if (panel->bg)
 452                         RReleaseImage(panel->bg);
 453                 panel->bg = NULL;
 454                 if (panel->tile)
 455                         RReleaseImage(panel->tile);
 456                 panel->tile = NULL;
 457                 if (panel->tileTmp)
 458                         RReleaseImage(panel->tileTmp);
 459                 panel->tileTmp = NULL;
 460         }
 461
 462         panel->white = WMWhiteColor(scr->wmscreen);
 463         panel->font = WMBoldSystemFontOfSize(scr->wmscreen, 12);
 464         panel->icons = WMCreateArray(count);
 465         panel->images = WMCreateArray(count);
 466
 467         panel->win = WMCreateWindow(scr->wmscreen, "");
 468
 469         if (!panel->bg) {
 470                 WMFrame *frame = WMCreateFrame(panel->win);
 471                 WMColor *darkGray = WMDarkGrayColor(scr->wmscreen);
 472                 WMSetFrameRelief(frame, WRSimple);
 473                 WMSetViewExpandsToParent(WMWidgetView(frame), 0, 0, 0, 0);
 474
 475                 panel->label = WMCreateLabel(panel->win);
 476                 WMResizeWidget(panel->label, width, LABEL_HEIGHT);
 477                 WMMoveWidget(panel->label, BORDER_SPACE, BORDER_SPACE + ICON_TILE_SIZE + 5);
 478                 WMSetLabelRelief(panel->label, WRSimple);
 479                 WMSetWidgetBackgroundColor(panel->label, darkGray);
 480                 WMSetLabelFont(panel->label, panel->font);
 481                 WMSetLabelTextColor(panel->label, panel->white);
 482
 483                 WMReleaseColor(darkGray);
 484                 height += 5;
 485         }
 486
 487         WMResizeWidget(panel->win, width + 2 * BORDER_SPACE, height + 2 * BORDER_SPACE);
 488
 489         viewport = WMCreateFrame(panel->win);
 490         WMResizeWidget(viewport, width, ICON_TILE_SIZE);
 491         WMMoveWidget(viewport, BORDER_SPACE, BORDER_SPACE);
 492         WMSetFrameRelief(viewport, WRFlat);
 493
 494         panel->iconBox = WMCreateFrame(viewport);
 495         WMMoveWidget(panel->iconBox, 0, 0);
 496         WMResizeWidget(panel->iconBox, ICON_TILE_SIZE * count, ICON_TILE_SIZE);
 497         WMSetFrameRelief(panel->iconBox, WRFlat);
 498
 499         WM_ITERATE_ARRAY(panel->windows, wwin, i) {
 500                 addIconForWindow(panel, panel->iconBox, wwin, i * ICON_TILE_SIZE, 0);
 501         }
 502
 503         WMMapSubwidgets(panel->win);
 504         WMRealizeWidget(panel->win);
 505
 506         WM_ITERATE_ARRAY(panel->windows, wwin, i) {
 507                 changeImage(panel, i, 0, False, True);
 508         }
 509
 510         if (panel->bg) {
 511                 Pixmap pixmap, mask;
 512
 513                 RConvertImageMask(scr->rcontext, panel->bg, &pixmap, &mask, 250);
 514
 515                 XSetWindowBackgroundPixmap(dpy, WMWidgetXID(panel->win), pixmap);
 516
 517 #ifdef USE_XSHAPE
 518                 if (mask && w_global.xext.shape.supported)
 519                         XShapeCombineMask(dpy, WMWidgetXID(panel->win), ShapeBounding, 0, 0, mask, ShapeSet);
 520 #endif
 521                 if (pixmap)
 522                         XFreePixmap(dpy, pixmap);
 523
 524                 if (mask)
 525                         XFreePixmap(dpy, mask);
 526         }
 527
 528         {
 529                 WMPoint center;
 530                 center = wGetPointToCenterRectInHead(scr, wGetHeadForPointerLocation(scr),
 531                                                      width + 2 * BORDER_SPACE, height + 2 * BORDER_SPACE);
 532                 WMMoveWidget(panel->win, center.x, center.y);
 533         }
 534
 535         panel->current = WMGetFirstInArray(panel->windows, curwin);
 536         if (panel->current >= 0)
 537                 changeImage(panel, panel->current, 1, False, False);
 538
 539         WMMapWidget(panel->win);
 540
 541         return panel;
 542 }
 543
 544 void wSwitchPanelDestroy(WSwitchPanel *panel)
 545 {
 546         int i;
 547         RImage *image;
 548
 549         if (panel->win) {
 550                 Window info_win = panel->scr->info_window;
 551                 XEvent ev;
 552                 ev.xclient.type = ClientMessage;
 553                 ev.xclient.message_type = w_global.atom.wm.ignore_focus_events;
 554                 ev.xclient.format = 32;
 555                 ev.xclient.data.l[0] = True;
 556
 557                 XSendEvent(dpy, info_win, True, EnterWindowMask, &ev);
 558                 WMUnmapWidget(panel->win);
 559
 560                 ev.xclient.data.l[0] = False;
 561                 XSendEvent(dpy, info_win, True, EnterWindowMask, &ev);
 562         }
 563
 564         if (panel->images) {
 565                 WM_ITERATE_ARRAY(panel->images, image, i) {
 566                         if (image)
 567                                 RReleaseImage(image);
 568                 }
 569                 WMFreeArray(panel->images);
 570         }
 571
 572         if (panel->win)
 573                 WMDestroyWidget(panel->win);
 574
 575         if (panel->icons)
 576                 WMFreeArray(panel->icons);
 577
 578         if (panel->flags)
 579                 WMFreeArray(panel->flags);
 580
 581         WMFreeArray(panel->windows);
 582
 583         if (panel->tile)
 584                 RReleaseImage(panel->tile);
 585
 586         if (panel->tileTmp)
 587                 RReleaseImage(panel->tileTmp);
 588
 589         if (panel->bg)
 590                 RReleaseImage(panel->bg);
 591
 592         if (panel->font)
 593                 WMReleaseFont(panel->font);
 594
 595         if (panel->white)
 596                 WMReleaseColor(panel->white);
 597
 598         wfree(panel);
 599 }
 600
 601 WWindow *wSwitchPanelSelectNext(WSwitchPanel *panel, int back, int ignore_minimized, Bool class_only)
 602 {
 603         WWindow *wwin, *curwin, *tmpwin;
 604         int count = WMGetArrayItemCount(panel->windows);
 605         int orig = panel->current;
 606         int i;
 607         Bool dim = False;
 608
 609         if (count == 0)
 610                 return NULL;
 611
 612         if (!wPreferences.cycle_ignore_minimized)
 613                 ignore_minimized = False;
 614
 615         if (ignore_minimized && canReceiveFocus(WMGetFromArray(panel->windows, (count + panel->current) % count)) < 0)
 616                 ignore_minimized = False;
 617
 618         curwin = WMGetFromArray(panel->windows, orig);
 619         do {
 620                 do {
 621                         if (back)
 622                                 panel->current--;
 623                         else
 624                                 panel->current++;
 625
 626                         panel->current= (count + panel->current) % count;
 627                         wwin = WMGetFromArray(panel->windows, panel->current);
 628
 629                         if (!class_only)
 630                                 break;
 631                         if (panel->current == orig)
 632                                 break;
 633                 } while (!sameWindowClass(wwin, curwin));
 634         } while (ignore_minimized && panel->current != orig && canReceiveFocus(wwin) < 0);
 635
 636         WM_ITERATE_ARRAY(panel->windows, tmpwin, i) {
 637                 if (i == panel->current)
 638                         continue;
 639                 if (!class_only || sameWindowClass(tmpwin, curwin))
 640                         changeImage(panel, i, 0, False, False);
 641                 else {
 642                         if (i == orig)
 643                                 dim = True;
 644                         changeImage(panel, i, 0, True, False);
 645                 }
 646
 647         }
 648
 649         if (panel->current < panel->firstVisible)
 650                 scrollIcons(panel, panel->current - panel->firstVisible);
 651         else if (panel->current - panel->firstVisible >= panel->visibleCount)
 652                 scrollIcons(panel, panel->current - panel->firstVisible - panel->visibleCount + 1);
 653
 654         if (panel->win) {
 655                 drawTitle(panel, panel->current, wwin->frame->title);
 656                 if (panel->current != orig)
 657                         changeImage(panel, orig, 0, dim, False);
 658                 changeImage(panel, panel->current, 1, False, False);
 659         }
 660
 661         return wwin;
 662 }
 663
 664 WWindow *wSwitchPanelSelectFirst(WSwitchPanel *panel, int back)
 665 {
 666         WWindow *wwin;
 667         int count = WMGetArrayItemCount(panel->windows);
 668         char *title;
 669         int i;
 670
 671         if (count == 0)
 672                 return NULL;
 673
 674         if (back) {
 675                 panel->current = count - 1;
 676                 scrollIcons(panel, count);
 677         } else {
 678                 panel->current = 0;
 679                 scrollIcons(panel, -count);
 680         }
 681
 682         wwin = WMGetFromArray(panel->windows, panel->current);
 683         title = wwin->frame->title;
 684
 685         if (panel->win) {
 686                 for (WMArrayFirst(panel->windows, &(i)); (i) != WANotFound; WMArrayNext(panel->windows, &(i)))
 687                         changeImage(panel, i, i == panel->current, False, False);
 688
 689                 drawTitle(panel, panel->current, title);
 690         }
 691
 692         return wwin;
 693 }
 694
 695 WWindow *wSwitchPanelHandleEvent(WSwitchPanel *panel, XEvent *event)
 696 {
 697         WMFrame *icon;
 698         int i;
 699         int focus = -1;
 700
 701         if (!panel->win)
 702                 return NULL;
 703
 704         if (event->type == MotionNotify) {
 705                 WM_ITERATE_ARRAY(panel->icons, icon, i) {
 706                         if (WMWidgetXID(icon) == event->xmotion.window) {
 707                                 focus = i;
 708                                 break;
 709                         }
 710                 }
 711         }
 712
 713         if (focus >= 0 && panel->current != focus) {
 714                 WWindow *wwin;
 715
 716                 WM_ITERATE_ARRAY(panel->windows, wwin, i) {
 717                         changeImage(panel, i, i == focus, False, False);
 718                 }
 719                 panel->current = focus;
 720
 721                 wwin = WMGetFromArray(panel->windows, focus);
 722
 723                 drawTitle(panel, panel->current, wwin->frame->title);
 724
 725                 return wwin;
 726         }
 727
 728         return NULL;
 729 }
 730
 731 Window wSwitchPanelGetWindow(WSwitchPanel *swpanel)
 732 {
 733         if (!swpanel->win)
 734                 return None;
 735
 736         return WMWidgetXID(swpanel->win);
 737 }