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 extern Atom _XA_WM_IGNORE_FOCUS_EVENTS;
  39
  40 #ifdef SHAPE
  41 #include <X11/extensions/shape.h>
  42
  43 extern Bool wShapeSupported;
  44 #endif
  45
  46 struct SwitchPanel {
  47         WScreen *scr;
  48         WMWindow *win;
  49         WMFrame *iconBox;
  50
  51         WMArray *icons;
  52         WMArray *images;
  53         WMArray *windows;
  54         WMArray *flags;
  55         RImage *bg;
  56         int current;
  57         int firstVisible;
  58         int visibleCount;
  59
  60         WMLabel *label;
  61
  62         RImage *tileTmp;
  63         RImage *tile;
  64
  65         WMFont *font;
  66         WMColor *white;
  67 };
  68
  69 extern WPreferences wPreferences;
  70
  71 #define BORDER_SPACE 10
  72 #define ICON_SIZE 48
  73 #define ICON_TILE_SIZE 64
  74 #define LABEL_HEIGHT 25
  75 #define SCREEN_BORDER_SPACING 2*20
  76 #define SCROLL_STEPS (ICON_TILE_SIZE/2)
  77
  78 #define ICON_SELECTED (1<<1)
  79 #define ICON_DIM (1<<2)
  80
  81 static int canReceiveFocus(WWindow *wwin)
  82 {
  83         if (wwin->frame->workspace != wwin->screen_ptr->current_workspace)
  84                 return 0;
  85
  86         if (wPreferences.cycle_active_head_only &&
  87             wGetHeadForWindow(wwin) != wGetHeadForPointerLocation(wwin->screen_ptr))
  88                 return 0;
  89
  90         if (WFLAGP(wwin, no_focusable))
  91                 return 0;
  92
  93         if (!wwin->flags.mapped) {
  94                 if (!wwin->flags.shaded && !wwin->flags.miniaturized && !wwin->flags.hidden)
  95                         return 0;
  96                 else
  97                         return -1;
  98         }
  99
 100         return 1;
 101 }
 102
 103 static Bool sameWindowClass(WWindow *wwin, WWindow *curwin)
 104 {
 105         if (!wwin->wm_class || !curwin->wm_class)
 106                 return False;
 107         if (strcmp(wwin->wm_class, curwin->wm_class))
 108                 return False;
 109
 110         return True;
 111 }
 112
 113 static void changeImage(WSwitchPanel *panel, int idecks, int selected, Bool dim, Bool force)
 114 {
 115         WMFrame *icon = WMGetFromArray(panel->icons, idecks);
 116         RImage *image = WMGetFromArray(panel->images, idecks);
 117         char flags = (char) (uintptr_t) WMGetFromArray(panel->flags, idecks);
 118         char desired = 0;
 119
 120         if (selected)
 121                 desired |= ICON_SELECTED;
 122         if (dim)
 123                 desired |= ICON_DIM;
 124
 125         if (flags == desired && !force)
 126                 return;
 127
 128         WMReplaceInArray(panel->flags, idecks, (void *) (uintptr_t) desired);
 129
 130         if (!panel->bg && !panel->tile && !selected)
 131                 WMSetFrameRelief(icon, WRFlat);
 132
 133         if (image && icon) {
 134                 RImage *back;
 135                 int opaq = (dim) ? 75 : 255;
 136                 RImage *tile;
 137                 WMPoint pos;
 138                 Pixmap p;
 139
 140                 if (canReceiveFocus(WMGetFromArray(panel->windows, idecks)) < 0)
 141                         opaq = 50;
 142
 143                 pos = WMGetViewPosition(WMWidgetView(icon));
 144                 back = panel->tileTmp;
 145                 if (panel->bg) {
 146                         RCopyArea(back, panel->bg,
 147                                   BORDER_SPACE + pos.x - panel->firstVisible * ICON_TILE_SIZE,
 148                                   BORDER_SPACE + pos.y, back->width, back->height, 0, 0);
 149                 } else {
 150                         RColor color;
 151                         WMScreen *wscr = WMWidgetScreen(icon);
 152                         color.red = 255;
 153                         color.red = WMRedComponentOfColor(WMGrayColor(wscr)) >> 8;
 154                         color.green = WMGreenComponentOfColor(WMGrayColor(wscr)) >> 8;
 155                         color.blue = WMBlueComponentOfColor(WMGrayColor(wscr)) >> 8;
 156                         RFillImage(back, &color);
 157                 }
 158
 159                 if (selected) {
 160                         tile = panel->tile;
 161                         RCombineArea(back, tile, 0, 0, tile->width, tile->height,
 162                                      (back->width - tile->width) / 2, (back->height - tile->height) / 2);
 163                 }
 164
 165                 RCombineAreaWithOpaqueness(back, image, 0, 0, image->width, image->height,
 166                                            (back->width - image->width) / 2, (back->height - image->height) / 2,
 167                                            opaq);
 168
 169                 RConvertImage(panel->scr->rcontext, back, &p);
 170                 XSetWindowBackgroundPixmap(dpy, WMWidgetXID(icon), p);
 171                 XClearWindow(dpy, WMWidgetXID(icon));
 172                 XFreePixmap(dpy, p);
 173         }
 174
 175         if (!panel->bg && !panel->tile && selected)
 176                 WMSetFrameRelief(icon, WRSimple);
 177 }
 178
 179 static void addIconForWindow(WSwitchPanel *panel, WMWidget *parent, WWindow *wwin, int x, int y)
 180 {
 181         WMFrame *icon = WMCreateFrame(parent);
 182         RImage *image = NULL;
 183
 184         WMSetFrameRelief(icon, WRFlat);
 185         WMResizeWidget(icon, ICON_TILE_SIZE, ICON_TILE_SIZE);
 186         WMMoveWidget(icon, x, y);
 187
 188         if (!WFLAGP(wwin, always_user_icon) && wwin->net_icon_image)
 189                 image = RRetainImage(wwin->net_icon_image);
 190
 191         /* get_icon_image() includes the default icon image */
 192         if (!image)
 193                 image = get_icon_image(panel->scr, wwin->wm_instance, wwin->wm_class, ICON_TILE_SIZE);
 194
 195         /* We must resize the icon size (~64) to the switchpanel icon size (~48) */
 196         image = wIconValidateIconSize(image, ICON_SIZE);
 197
 198         WMAddToArray(panel->images, image);
 199         WMAddToArray(panel->icons, icon);
 200 }
 201
 202 static void scrollIcons(WSwitchPanel *panel, int delta)
 203 {
 204         int nfirst = panel->firstVisible + delta;
 205         int i;
 206         int count = WMGetArrayItemCount(panel->windows);
 207         Bool dim;
 208
 209         if (count <= panel->visibleCount)
 210                 return;
 211
 212         if (nfirst < 0)
 213                 nfirst = 0;
 214         else if (nfirst >= count - panel->visibleCount)
 215                 nfirst = count - panel->visibleCount;
 216
 217         if (nfirst == panel->firstVisible)
 218                 return;
 219
 220         WMMoveWidget(panel->iconBox, -nfirst * ICON_TILE_SIZE, 0);
 221
 222         panel->firstVisible = nfirst;
 223
 224         for (i = panel->firstVisible; i < panel->firstVisible + panel->visibleCount; i++) {
 225                 if (i == panel->current)
 226                         continue;
 227                 dim = ((char) (uintptr_t) WMGetFromArray(panel->flags, i) & ICON_DIM);
 228                 changeImage(panel, i, 0, dim, True);
 229         }
 230 }
 231
 232 /*
 233  * 0 1 2
 234  * 3 4 5
 235  * 6 7 8
 236  */
 237 static RImage *assemblePuzzleImage(RImage **images, int width, int height)
 238 {
 239         RImage *img = RCreateImage(width, height, 1);
 240         RImage *tmp;
 241         int tw, th;
 242         RColor color;
 243         if (!img)
 244                 return NULL;
 245
 246         color.red = 0;
 247         color.green = 0;
 248         color.blue = 0;
 249         color.alpha = 255;
 250
 251         RFillImage(img, &color);
 252
 253         tw = width - images[0]->width - images[2]->width;
 254         th = height - images[0]->height - images[6]->height;
 255
 256         if (tw <= 0 || th <= 0)
 257                 return NULL;
 258
 259         /* top */
 260         if (tw > 0) {
 261                 tmp = RSmoothScaleImage(images[1], tw, images[1]->height);
 262                 RCopyArea(img, tmp, 0, 0, tmp->width, tmp->height, images[0]->width, 0);
 263                 RReleaseImage(tmp);
 264         }
 265         /* bottom */
 266         if (tw > 0) {
 267                 tmp = RSmoothScaleImage(images[7], tw, images[7]->height);
 268                 RCopyArea(img, tmp, 0, 0, tmp->width, tmp->height, images[6]->width, height - images[6]->height);
 269                 RReleaseImage(tmp);
 270         }
 271         /* left */
 272         if (th > 0) {
 273                 tmp = RSmoothScaleImage(images[3], images[3]->width, th);
 274                 RCopyArea(img, tmp, 0, 0, tmp->width, tmp->height, 0, images[0]->height);
 275                 RReleaseImage(tmp);
 276         }
 277         /* right */
 278         if (th > 0) {
 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         if (tw > 0 && th > 0) {
 285                 tmp = RSmoothScaleImage(images[4], tw, th);
 286                 RCopyArea(img, tmp, 0, 0, tmp->width, tmp->height, images[0]->width, images[0]->height);
 287                 RReleaseImage(tmp);
 288         }
 289
 290         /* corners */
 291         RCopyArea(img, images[0], 0, 0, images[0]->width, images[0]->height, 0, 0);
 292         RCopyArea(img, images[2], 0, 0, images[2]->width, images[2]->height, width - images[2]->width, 0);
 293         RCopyArea(img, images[6], 0, 0, images[6]->width, images[6]->height, 0, height - images[6]->height);
 294         RCopyArea(img, images[8], 0, 0, images[8]->width, images[8]->height,
 295                   width - images[8]->width, height - images[8]->height);
 296
 297         return img;
 298 }
 299
 300 static RImage *createBackImage(int width, int height)
 301 {
 302         return assemblePuzzleImage(wPreferences.swbackImage, width, height);
 303 }
 304
 305 static RImage *getTile(void)
 306 {
 307         RImage *stile;
 308
 309         if (!wPreferences.swtileImage)
 310                 return NULL;
 311
 312         stile = RScaleImage(wPreferences.swtileImage, ICON_TILE_SIZE, ICON_TILE_SIZE);
 313         if (!stile)
 314                 return wPreferences.swtileImage;
 315
 316         return stile;
 317 }
 318
 319 static void drawTitle(WSwitchPanel *panel, int idecks, char *title)
 320 {
 321         char *ntitle;
 322         int width = WMWidgetWidth(panel->win);
 323         int x;
 324
 325         if (title)
 326                 ntitle = ShrinkString(panel->font, title, width - 2 * BORDER_SPACE);
 327         else
 328                 ntitle = NULL;
 329
 330         if (panel->bg) {
 331                 if (ntitle) {
 332                         if (strcmp(ntitle, title) != 0) {
 333                                 x = BORDER_SPACE;
 334                         } else {
 335                                 int w = WMWidthOfString(panel->font, ntitle, strlen(ntitle));
 336
 337                                 x = BORDER_SPACE + (idecks - panel->firstVisible) * ICON_TILE_SIZE +
 338                                     ICON_TILE_SIZE / 2 - w / 2;
 339                                 if (x < BORDER_SPACE)
 340                                         x = BORDER_SPACE;
 341                                 else if (x + w > width - BORDER_SPACE)
 342                                         x = width - BORDER_SPACE - w;
 343                         }
 344                 }
 345
 346                 XClearWindow(dpy, WMWidgetXID(panel->win));
 347                 if (ntitle)
 348                         WMDrawString(panel->scr->wmscreen,
 349                                      WMWidgetXID(panel->win),
 350                                      panel->white, panel->font,
 351                                      x,
 352                                      WMWidgetHeight(panel->win) - BORDER_SPACE - LABEL_HEIGHT +
 353                                      WMFontHeight(panel->font) / 2, ntitle, strlen(ntitle));
 354         } else {
 355                 if (ntitle)
 356                         WMSetLabelText(panel->label, ntitle);
 357         }
 358
 359         if (ntitle)
 360                 free(ntitle);
 361 }
 362
 363 static WMArray *makeWindowListArray(WWindow *curwin, int include_unmapped, Bool class_only)
 364 {
 365         WMArray *windows = WMCreateArray(10);
 366         int fl;
 367         WWindow *wwin;
 368
 369         for (fl = 0; fl < 2; fl++) {
 370                 for (wwin = curwin; wwin; wwin = wwin->prev) {
 371                         if (((!fl && canReceiveFocus(wwin) > 0) || (fl && canReceiveFocus(wwin) < 0)) &&
 372                             (wwin->flags.mapped || include_unmapped)) {
 373                                 if (class_only)
 374                                         if (!sameWindowClass(wwin, curwin))
 375                                                 continue;
 376
 377                                 if (!WFLAGP(wwin, skip_switchpanel))
 378                                         WMAddToArray(windows, wwin);
 379                         }
 380                 }
 381                 wwin = curwin;
 382                 /* start over from the beginning of the list */
 383                 while (wwin->next)
 384                         wwin = wwin->next;
 385
 386                 for (wwin = curwin; wwin && wwin != curwin; wwin = wwin->prev) {
 387                         if (((!fl && canReceiveFocus(wwin) > 0) || (fl && canReceiveFocus(wwin) < 0)) &&
 388                             (wwin->flags.mapped || include_unmapped)) {
 389                                 if (class_only)
 390                                     if (!sameWindowClass(wwin, curwin))
 391                                         continue;
 392                                 if (!WFLAGP(wwin, skip_switchpanel))
 393                                 WMAddToArray(windows, wwin);
 394                         }
 395                 }
 396         }
 397
 398         return windows;
 399 }
 400
 401 static WMArray *makeWindowFlagsArray(int count)
 402 {
 403         WMArray *flags = WMCreateArray(1);
 404         int i;
 405
 406         for (i = 0; i < count; i++)
 407                 WMAddToArray(flags, (char) 0);
 408
 409         return flags;
 410 }
 411
 412 WSwitchPanel *wInitSwitchPanel(WScreen *scr, WWindow *curwin, Bool class_only)
 413 {
 414         WWindow *wwin;
 415         WSwitchPanel *panel = wmalloc(sizeof(WSwitchPanel));
 416         WMFrame *viewport;
 417         int i, width, height, iconsThatFitCount, count;
 418         WMRect rect = wGetRectForHead(scr, wGetHeadForPointerLocation(scr));
 419
 420         panel->scr = scr;
 421         panel->windows = makeWindowListArray(curwin, wPreferences.swtileImage != NULL, class_only);
 422         count = WMGetArrayItemCount(panel->windows);
 423         if (count)
 424                 panel->flags = makeWindowFlagsArray(count);
 425
 426         if (count == 0) {
 427                 WMFreeArray(panel->windows);
 428                 wfree(panel);
 429                 return NULL;
 430         }
 431
 432         width = ICON_TILE_SIZE * count;
 433         iconsThatFitCount = count;
 434
 435         if (width > rect.size.width) {
 436                 iconsThatFitCount = (rect.size.width - SCREEN_BORDER_SPACING) / ICON_TILE_SIZE;
 437                 width = iconsThatFitCount * ICON_TILE_SIZE;
 438         }
 439
 440         panel->visibleCount = iconsThatFitCount;
 441
 442         if (!wPreferences.swtileImage)
 443                 return panel;
 444
 445         height = LABEL_HEIGHT + ICON_TILE_SIZE;
 446
 447         panel->tileTmp = RCreateImage(ICON_TILE_SIZE, ICON_TILE_SIZE, 1);
 448         panel->tile = getTile();
 449         if (panel->tile && wPreferences.swbackImage[8])
 450                 panel->bg = createBackImage(width + 2 * BORDER_SPACE, height + 2 * BORDER_SPACE);
 451
 452         if (!panel->tileTmp || !panel->tile) {
 453                 if (panel->bg)
 454                         RReleaseImage(panel->bg);
 455                 panel->bg = NULL;
 456                 if (panel->tile)
 457                         RReleaseImage(panel->tile);
 458                 panel->tile = NULL;
 459                 if (panel->tileTmp)
 460                         RReleaseImage(panel->tileTmp);
 461                 panel->tileTmp = NULL;
 462         }
 463
 464         panel->white = WMWhiteColor(scr->wmscreen);
 465         panel->font = WMBoldSystemFontOfSize(scr->wmscreen, 12);
 466         panel->icons = WMCreateArray(count);
 467         panel->images = WMCreateArray(count);
 468
 469         panel->win = WMCreateWindow(scr->wmscreen, "");
 470
 471         if (!panel->bg) {
 472                 WMFrame *frame = WMCreateFrame(panel->win);
 473                 WMColor *darkGray = WMDarkGrayColor(scr->wmscreen);
 474                 WMSetFrameRelief(frame, WRSimple);
 475                 WMSetViewExpandsToParent(WMWidgetView(frame), 0, 0, 0, 0);
 476
 477                 panel->label = WMCreateLabel(panel->win);
 478                 WMResizeWidget(panel->label, width, LABEL_HEIGHT);
 479                 WMMoveWidget(panel->label, BORDER_SPACE, BORDER_SPACE + ICON_TILE_SIZE + 5);
 480                 WMSetLabelRelief(panel->label, WRSimple);
 481                 WMSetWidgetBackgroundColor(panel->label, darkGray);
 482                 WMSetLabelFont(panel->label, panel->font);
 483                 WMSetLabelTextColor(panel->label, panel->white);
 484
 485                 WMReleaseColor(darkGray);
 486                 height += 5;
 487         }
 488
 489         WMResizeWidget(panel->win, width + 2 * BORDER_SPACE, height + 2 * BORDER_SPACE);
 490
 491         viewport = WMCreateFrame(panel->win);
 492         WMResizeWidget(viewport, width, ICON_TILE_SIZE);
 493         WMMoveWidget(viewport, BORDER_SPACE, BORDER_SPACE);
 494         WMSetFrameRelief(viewport, WRFlat);
 495
 496         panel->iconBox = WMCreateFrame(viewport);
 497         WMMoveWidget(panel->iconBox, 0, 0);
 498         WMResizeWidget(panel->iconBox, ICON_TILE_SIZE * count, ICON_TILE_SIZE);
 499         WMSetFrameRelief(panel->iconBox, WRFlat);
 500
 501         WM_ITERATE_ARRAY(panel->windows, wwin, i) {
 502                 addIconForWindow(panel, panel->iconBox, wwin, i * ICON_TILE_SIZE, 0);
 503         }
 504
 505         WMMapSubwidgets(panel->win);
 506         WMRealizeWidget(panel->win);
 507
 508         WM_ITERATE_ARRAY(panel->windows, wwin, i) {
 509                 changeImage(panel, i, 0, False, True);
 510         }
 511
 512         if (panel->bg) {
 513                 Pixmap pixmap, mask;
 514
 515                 RConvertImageMask(scr->rcontext, panel->bg, &pixmap, &mask, 250);
 516
 517                 XSetWindowBackgroundPixmap(dpy, WMWidgetXID(panel->win), pixmap);
 518
 519 #ifdef SHAPE
 520                 if (mask && wShapeSupported)
 521                         XShapeCombineMask(dpy, WMWidgetXID(panel->win), ShapeBounding, 0, 0, mask, ShapeSet);
 522 #endif
 523                 if (pixmap)
 524                         XFreePixmap(dpy, pixmap);
 525
 526                 if (mask)
 527                         XFreePixmap(dpy, mask);
 528         }
 529
 530         {
 531                 WMPoint center;
 532                 center = wGetPointToCenterRectInHead(scr, wGetHeadForPointerLocation(scr),
 533                                                      width + 2 * BORDER_SPACE, height + 2 * BORDER_SPACE);
 534                 WMMoveWidget(panel->win, center.x, center.y);
 535         }
 536
 537         panel->current = WMGetFirstInArray(panel->windows, curwin);
 538         if (panel->current >= 0)
 539                 changeImage(panel, panel->current, 1, False, False);
 540
 541         WMMapWidget(panel->win);
 542
 543         return panel;
 544 }
 545
 546 void wSwitchPanelDestroy(WSwitchPanel *panel)
 547 {
 548         int i;
 549         RImage *image;
 550
 551         if (panel->win) {
 552                 Window info_win = panel->scr->info_window;
 553                 XEvent ev;
 554                 ev.xclient.type = ClientMessage;
 555                 ev.xclient.message_type = _XA_WM_IGNORE_FOCUS_EVENTS;
 556                 ev.xclient.format = 32;
 557                 ev.xclient.data.l[0] = True;
 558
 559                 XSendEvent(dpy, info_win, True, EnterWindowMask, &ev);
 560                 WMUnmapWidget(panel->win);
 561
 562                 ev.xclient.data.l[0] = False;
 563                 XSendEvent(dpy, info_win, True, EnterWindowMask, &ev);
 564         }
 565
 566         if (panel->images) {
 567                 WM_ITERATE_ARRAY(panel->images, image, i) {
 568                         if (image)
 569                                 RReleaseImage(image);
 570                 }
 571                 WMFreeArray(panel->images);
 572         }
 573
 574         if (panel->win)
 575                 WMDestroyWidget(panel->win);
 576
 577         if (panel->icons)
 578                 WMFreeArray(panel->icons);
 579
 580         if (panel->flags)
 581                 WMFreeArray(panel->flags);
 582
 583         WMFreeArray(panel->windows);
 584
 585         if (panel->tile)
 586                 RReleaseImage(panel->tile);
 587
 588         if (panel->tileTmp)
 589                 RReleaseImage(panel->tileTmp);
 590
 591         if (panel->bg)
 592                 RReleaseImage(panel->bg);
 593
 594         if (panel->font)
 595                 WMReleaseFont(panel->font);
 596
 597         if (panel->white)
 598                 WMReleaseColor(panel->white);
 599
 600         wfree(panel);
 601 }
 602
 603 WWindow *wSwitchPanelSelectNext(WSwitchPanel *panel, int back, int ignore_minimized, Bool class_only)
 604 {
 605         WWindow *wwin, *curwin, *tmpwin;
 606         int count = WMGetArrayItemCount(panel->windows);
 607         int orig = panel->current;
 608         int i;
 609         Bool dim = False;
 610
 611         if (count == 0)
 612                 return NULL;
 613
 614         if (!wPreferences.cycle_ignore_minimized)
 615                 ignore_minimized = False;
 616
 617         if (ignore_minimized && canReceiveFocus(WMGetFromArray(panel->windows, (count + panel->current) % count)) < 0)
 618                 ignore_minimized = False;
 619
 620         curwin = WMGetFromArray(panel->windows, orig);
 621         do {
 622                 do {
 623                         if (back)
 624                                 panel->current--;
 625                         else
 626                                 panel->current++;
 627
 628                         panel->current= (count + panel->current) % count;
 629                         wwin = WMGetFromArray(panel->windows, panel->current);
 630
 631                         if (!class_only)
 632                                 break;
 633                         if (panel->current == orig)
 634                                 break;
 635                 } while (!sameWindowClass(wwin, curwin));
 636         } while (ignore_minimized && panel->current != orig && canReceiveFocus(wwin) < 0);
 637
 638         WM_ITERATE_ARRAY(panel->windows, tmpwin, i) {
 639                 if (i == panel->current)
 640                         continue;
 641                 if (!class_only || sameWindowClass(tmpwin, curwin))
 642                         changeImage(panel, i, 0, False, False);
 643                 else {
 644                         if (i == orig)
 645                                 dim = True;
 646                         changeImage(panel, i, 0, True, False);
 647                 }
 648
 649         }
 650
 651         if (panel->current < panel->firstVisible)
 652                 scrollIcons(panel, panel->current - panel->firstVisible);
 653         else if (panel->current - panel->firstVisible >= panel->visibleCount)
 654                 scrollIcons(panel, panel->current - panel->firstVisible - panel->visibleCount + 1);
 655
 656         if (panel->win) {
 657                 drawTitle(panel, panel->current, wwin->frame->title);
 658                 if (panel->current != orig)
 659                         changeImage(panel, orig, 0, dim, False);
 660                 changeImage(panel, panel->current, 1, False, False);
 661         }
 662
 663         return wwin;
 664 }
 665
 666 WWindow *wSwitchPanelSelectFirst(WSwitchPanel *panel, int back)
 667 {
 668         WWindow *wwin;
 669         int count = WMGetArrayItemCount(panel->windows);
 670         char *title;
 671         int i;
 672
 673         if (count == 0)
 674                 return NULL;
 675
 676         if (back) {
 677                 panel->current = count - 1;
 678                 scrollIcons(panel, count);
 679         } else {
 680                 panel->current = 0;
 681                 scrollIcons(panel, -count);
 682         }
 683
 684         wwin = WMGetFromArray(panel->windows, panel->current);
 685         title = wwin->frame->title;
 686
 687         if (panel->win) {
 688                 WM_ITERATE_ARRAY(panel->windows, wwin, i) {
 689                         changeImage(panel, i, i == panel->current, False, False);
 690                 }
 691                 drawTitle(panel, panel->current, title);
 692         }
 693
 694         return wwin;
 695 }
 696
 697 WWindow *wSwitchPanelHandleEvent(WSwitchPanel *panel, XEvent *event)
 698 {
 699         WMFrame *icon;
 700         int i;
 701         int focus = -1;
 702
 703         if (!panel->win)
 704                 return NULL;
 705
 706         if (event->type == MotionNotify) {
 707                 WM_ITERATE_ARRAY(panel->icons, icon, i) {
 708                         if (WMWidgetXID(icon) == event->xmotion.window) {
 709                                 focus = i;
 710                                 break;
 711                         }
 712                 }
 713         }
 714
 715         if (focus >= 0 && panel->current != focus) {
 716                 WWindow *wwin;
 717
 718                 WM_ITERATE_ARRAY(panel->windows, wwin, i) {
 719                         changeImage(panel, i, i == focus, False, False);
 720                 }
 721                 panel->current = focus;
 722
 723                 wwin = WMGetFromArray(panel->windows, focus);
 724
 725                 drawTitle(panel, panel->current, wwin->frame->title);
 726
 727                 return wwin;
 728         }
 729
 730         return NULL;
 731 }
 732
 733 Window wSwitchPanelGetWindow(WSwitchPanel *swpanel)
 734 {
 735         if (!swpanel->win)
 736                 return None;
 737
 738         return WMWidgetXID(swpanel->win);
 739 }