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
  17  *  along with this program; if not, write to the Free Software
  18  *  Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307,
  19  *  USA.
  20  */
  21
  22 #include "wconfig.h"
  23
  24 #include <stdlib.h>
  25 #include <string.h>
  26 #include <sys/time.h>
  27
  28 #ifdef SHAPE
  29 #include <X11/extensions/shape.h>
  30
  31 extern Bool wShapeSupported;
  32 #endif
  33
  34 #include "WindowMaker.h"
  35 #include "screen.h"
  36 #include "wcore.h"
  37 #include "framewin.h"
  38 #include "window.h"
  39 #include "defaults.h"
  40 #include "switchpanel.h"
  41 #include "funcs.h"
  42 #include "xinerama.h"
  43
  44 struct SwitchPanel {
  45     WScreen *scr;
  46     WMWindow *win;
  47     WMFrame *iconBox;
  48
  49     WMArray *icons;
  50     WMArray *images;
  51     WMArray *windows;
  52     RImage *bg;
  53     int current;
  54     int firstVisible;
  55     int visibleCount;
  56
  57     WMLabel *label;
  58
  59     RImage *defIcon;
  60
  61     RImage *tileTmp;
  62     RImage *tile;
  63
  64     WMFont *font;
  65     WMColor *white;
  66 };
  67
  68
  69
  70
  71
  72 extern WPreferences wPreferences;
  73
  74 #define BORDER_SPACE 10
  75 #define ICON_SIZE 48
  76 #define ICON_TILE_SIZE 64
  77 #define LABEL_HEIGHT 25
  78 #define SCREEN_BORDER_SPACING 2*20
  79 #define SCROLL_STEPS (ICON_TILE_SIZE/2)
  80
  81 static int canReceiveFocus(WWindow *wwin)
  82 {
  83   if (wwin->frame->workspace != wwin->screen_ptr->current_workspace)
  84     return 0;
  85   if (!wwin->flags.mapped)
  86   {
  87     if (!wwin->flags.shaded && !wwin->flags.miniaturized && !wwin->flags.hidden)
  88       return 0;
  89     else
  90       return -1;
  91   }
  92   if (WFLAGP(wwin, no_focusable))
  93     return 0;
  94   return 1;
  95 }
  96
  97
  98 static void changeImage(WSwitchPanel *panel, int index, int selected)
  99 {
 100     WMFrame *icon = WMGetFromArray(panel->icons, index);
 101     RImage *image= WMGetFromArray(panel->images, index);
 102
 103     if (!panel->bg && !panel->tile) {
 104         if (!selected)
 105           WMSetFrameRelief(icon, WRFlat);
 106     }
 107
 108     if (image && icon) {
 109         RImage *back;
 110         int opaq= 255;
 111         RImage *tile;
 112         WMPoint pos;
 113         Pixmap p;
 114
 115         if (canReceiveFocus(WMGetFromArray(panel->windows, index)) < 0)
 116           opaq= 50;
 117
 118         pos= WMGetViewPosition(WMWidgetView(icon));
 119         back= panel->tileTmp;
 120         if (panel->bg)
 121           RCopyArea(back, panel->bg,
 122                     BORDER_SPACE+pos.x-panel->firstVisible*ICON_TILE_SIZE, BORDER_SPACE+pos.y,
 123                     back->width, back->height,
 124                     0, 0);
 125         else
 126         {
 127             RColor color;
 128             WMScreen *wscr= WMWidgetScreen(icon);
 129             color.red= 255;
 130             color.red = WMRedComponentOfColor(WMGrayColor(wscr))>>8;
 131             color.green = WMGreenComponentOfColor(WMGrayColor(wscr))>>8;
 132             color.blue = WMBlueComponentOfColor(WMGrayColor(wscr))>>8;
 133             RFillImage(back, &color);
 134         }
 135         if (selected)
 136         {
 137             tile= panel->tile;
 138             RCombineArea(back, tile, 0, 0, tile->width, tile->height,
 139                          (back->width - tile->width)/2, (back->height - tile->height)/2);
 140         }
 141         RCombineAreaWithOpaqueness(back, image, 0, 0, image->width, image->height,
 142                                    (back->width - image->width)/2, (back->height - image->height)/2,
 143                                    opaq);
 144
 145         RConvertImage(panel->scr->rcontext, back, &p);
 146         XSetWindowBackgroundPixmap(dpy, WMWidgetXID(icon), p);
 147         XClearWindow(dpy, WMWidgetXID(icon));
 148         XFreePixmap(dpy, p);
 149     }
 150
 151     if (!panel->bg && !panel->tile) {
 152         if (selected)
 153           WMSetFrameRelief(icon, WRSimple);
 154     }
 155 }
 156
 157
 158 static RImage *scaleDownIfNeeded(RImage *image)
 159 {
 160     if (image && ((image->width - ICON_SIZE) > 2 || (image->height - ICON_SIZE) > 2)) {
 161         RImage *nimage;
 162         nimage= RScaleImage(image, ICON_SIZE, (image->height * ICON_SIZE / image->width));
 163         RReleaseImage(image);
 164         image= nimage;
 165     }
 166     return image;
 167 }
 168
 169
 170 static void addIconForWindow(WSwitchPanel *panel, WMWidget *parent, WWindow *wwin,
 171                              int x, int y)
 172 {
 173     WMFrame *icon= WMCreateFrame(parent);
 174     RImage *image = NULL;
 175
 176     WMSetFrameRelief(icon, WRFlat);
 177     WMResizeWidget(icon, ICON_TILE_SIZE, ICON_TILE_SIZE);
 178     WMMoveWidget(icon, x, y);
 179
 180     if (!WFLAGP(wwin, always_user_icon) && wwin->net_icon_image)
 181       image = RRetainImage(wwin->net_icon_image);
 182
 183     // Make this use a caching thing. When there are many windows,
 184     // it's very likely that most of them are instances of the same thing,
 185     // so caching them should get performance acceptable in these cases.
 186     if (!image)
 187       image = wDefaultGetImage(panel->scr, wwin->wm_instance, wwin->wm_class);
 188
 189     if (!image && !panel->defIcon) {
 190         char *file = wDefaultGetIconFile(panel->scr, NULL, NULL, False);
 191         if (file) {
 192             char *path = FindImage(wPreferences.icon_path, file);
 193             if (path) {
 194                 image = RLoadImage(panel->scr->rcontext, path, 0);
 195                 wfree(path);
 196             }
 197         }
 198         if (image)
 199           panel->defIcon= scaleDownIfNeeded(image);
 200         image= NULL;
 201     }
 202     if (!image && panel->defIcon)
 203       image= RRetainImage(panel->defIcon);
 204
 205     image= scaleDownIfNeeded(image);
 206
 207     WMAddToArray(panel->images, image);
 208     WMAddToArray(panel->icons, icon);
 209 }
 210
 211
 212 static void scrollIcons(WSwitchPanel *panel, int delta)
 213 {
 214     int nfirst= panel->firstVisible + delta;
 215     int i;
 216     int count= WMGetArrayItemCount(panel->windows);
 217 //    int nx, ox;
 218 //    struct timeval tv1, tv2;
 219
 220     if (count <= panel->visibleCount)
 221       return;
 222
 223     if (nfirst < 0)
 224       nfirst= 0;
 225     else if (nfirst >= count-panel->visibleCount)
 226       nfirst= count-panel->visibleCount;
 227
 228     if (nfirst == panel->firstVisible)
 229       return;
 230 /*
 231     ox = -panel->firstVisible * ICON_TILE_SIZE;
 232     nx = -nfirst * ICON_TILE_SIZE;
 233     for (i= 0; i < SCROLL_STEPS; i++) {
 234         unsigned int diff;
 235         gettimeofday(&tv1, NULL);
 236         WMMoveWidget(panel->iconBox, (nx*i + ox*(SCROLL_STEPS-i))/(SCROLL_STEPS-1), 0);
 237         XSync(dpy, False);
 238         gettimeofday(&tv2, NULL);
 239         diff = (tv2.tv_sec-tv1.tv_sec)*10000+(tv2.tv_usec-tv1.tv_usec)/100;
 240         if (diff < 200)
 241           wusleep(300-diff);
 242     }
 243  */
 244     WMMoveWidget(panel->iconBox, -nfirst*ICON_TILE_SIZE, 0);
 245
 246     panel->firstVisible= nfirst;
 247
 248     for (i= panel->firstVisible; i < panel->firstVisible+panel->visibleCount; i++) {
 249         changeImage(panel, i, i == panel->current);
 250     }
 251 }
 252
 253
 254 /*
 255  * 0 1 2
 256  * 3 4 5
 257  * 6 7 8
 258  */
 259 static RImage *assemblePuzzleImage(RImage **images, int width, int height)
 260 {
 261     RImage *img= RCreateImage(width, height, 1);
 262     RImage *tmp;
 263     int tw, th;
 264     RColor color;
 265     if (!img)
 266       return NULL;
 267
 268     color.red= 0;
 269     color.green= 0;
 270     color.blue= 0;
 271     color.alpha= 255;
 272
 273     RFillImage(img, &color);
 274
 275     tw= width-images[0]->width-images[2]->width;
 276     th= height-images[0]->height-images[6]->height;
 277
 278     if (tw <= 0 || th <= 0) {
 279         //XXX
 280         return NULL;
 281     }
 282
 283     /* top */
 284     if (tw > 0) {
 285         tmp= RSmoothScaleImage(images[1], tw, images[1]->height);
 286         RCopyArea(img, tmp, 0, 0, tmp->width, tmp->height,
 287                   images[0]->width, 0);
 288         RReleaseImage(tmp);
 289     }
 290     /* bottom */
 291     if (tw > 0) {
 292         tmp= RSmoothScaleImage(images[7], tw, images[7]->height);
 293         RCopyArea(img, tmp, 0, 0, tmp->width, tmp->height,
 294                   images[6]->width, height-images[6]->height);
 295         RReleaseImage(tmp);
 296     }
 297     /* left */
 298     if (th > 0) {
 299         tmp= RSmoothScaleImage(images[3], images[3]->width, th);
 300         RCopyArea(img, tmp, 0, 0, tmp->width, tmp->height,
 301                   0, images[0]->height);
 302         RReleaseImage(tmp);
 303     }
 304     /* right */
 305     if (th > 0) {
 306         tmp= RSmoothScaleImage(images[5], images[5]->width, th);
 307         RCopyArea(img, tmp, 0, 0, tmp->width, tmp->height,
 308                   width-images[5]->width, images[2]->height);
 309         RReleaseImage(tmp);
 310     }
 311     /* center */
 312     if (tw > 0 && th > 0) {
 313         tmp= RSmoothScaleImage(images[4], tw, th);
 314         RCopyArea(img, tmp, 0, 0, tmp->width, tmp->height,
 315                   images[0]->width, images[0]->height);
 316         RReleaseImage(tmp);
 317     }
 318
 319     /* corners */
 320     RCopyArea(img, images[0], 0, 0, images[0]->width, images[0]->height,
 321               0, 0);
 322
 323     RCopyArea(img, images[2], 0, 0, images[2]->width, images[2]->height,
 324               width-images[2]->width, 0);
 325
 326     RCopyArea(img, images[6], 0, 0, images[6]->width, images[6]->height,
 327               0, height-images[6]->height);
 328
 329     RCopyArea(img, images[8], 0, 0, images[8]->width, images[8]->height,
 330               width-images[8]->width, height-images[8]->height);
 331
 332     return img;
 333 }
 334
 335 static RImage *createBackImage(WScreen *scr, int width, int height)
 336 {
 337     return assemblePuzzleImage(wPreferences.swbackImage, width, height);
 338 }
 339
 340
 341 static RImage *getTile(WSwitchPanel *panel)
 342 {
 343     RImage *stile;
 344
 345     if (!wPreferences.swtileImage)
 346         return NULL;
 347
 348     stile = RScaleImage(wPreferences.swtileImage, ICON_TILE_SIZE, ICON_TILE_SIZE);
 349     if (!stile)
 350         return wPreferences.swtileImage;
 351
 352     return stile;
 353 }
 354
 355
 356 static void
 357 drawTitle(WSwitchPanel *panel, int index, char *title)
 358 {
 359     char *ntitle;
 360     int width= WMWidgetWidth(panel->win);
 361     int x;
 362
 363     ntitle= ShrinkString(panel->font, title, width-2*BORDER_SPACE);
 364
 365     if (panel->bg) {
 366         if (strcmp(ntitle, title)!=0)
 367           x= BORDER_SPACE;
 368         else
 369         {
 370             int w= WMWidthOfString(panel->font, ntitle, strlen(ntitle));
 371
 372             x= BORDER_SPACE+(index-panel->firstVisible)*ICON_TILE_SIZE + ICON_TILE_SIZE/2 - w/2;
 373             if (x < BORDER_SPACE)
 374               x= BORDER_SPACE;
 375             else if (x + w > width-BORDER_SPACE)
 376               x= width-BORDER_SPACE-w;
 377         }
 378
 379         XClearWindow(dpy, WMWidgetXID(panel->win));
 380         WMDrawString(panel->scr->wmscreen,
 381                      WMWidgetXID(panel->win),
 382                      panel->white, panel->font,
 383                      x, WMWidgetHeight(panel->win) - BORDER_SPACE - LABEL_HEIGHT + WMFontHeight(panel->font)/2,
 384                      ntitle, strlen(ntitle));
 385     } else {
 386         WMSetLabelText(panel->label, ntitle);
 387     }
 388     free(ntitle);
 389 }
 390
 391
 392
 393 static WMArray *makeWindowListArray(WScreen *scr, WWindow *curwin, int workspace)
 394 {
 395     WMArray *windows= WMCreateArray(10);
 396     int fl;
 397     WWindow *wwin;
 398
 399     for (fl= 0; fl < 2; fl++) {
 400         for (wwin= curwin; wwin; wwin= wwin->prev) {
 401             if (((!fl && canReceiveFocus(wwin) > 0) || (fl && canReceiveFocus(wwin) < 0)) &&
 402                 (!WFLAGP(wwin, skip_window_list) || wwin->flags.internal_window)) {
 403                 WMAddToArray(windows, wwin);
 404             }
 405         }
 406         wwin = curwin;
 407         /* start over from the beginning of the list */
 408         while (wwin->next)
 409           wwin = wwin->next;
 410
 411         for (wwin= curwin; wwin && wwin != curwin; wwin= wwin->prev) {
 412             if (((!fl && canReceiveFocus(wwin) > 0) || (fl && canReceiveFocus(wwin) < 0)) &&
 413                 (!WFLAGP(wwin, skip_window_list) || wwin->flags.internal_window)) {
 414                 WMAddToArray(windows, wwin);
 415             }
 416         }
 417     }
 418
 419     return windows;
 420 }
 421
 422
 423
 424
 425
 426 WSwitchPanel *wInitSwitchPanel(WScreen *scr, WWindow *curwin, int workspace)
 427 {
 428     WWindow *wwin;
 429     WSwitchPanel *panel= wmalloc(sizeof(WSwitchPanel));
 430     WMFrame *viewport;
 431     int i;
 432     int width, height;
 433     int iconsThatFitCount;
 434     int count;
 435     WMRect rect;
 436     rect= wGetRectForHead(scr, wGetHeadForPointerLocation(scr));
 437
 438     memset(panel, 0, sizeof(WSwitchPanel));
 439
 440     panel->scr= scr;
 441
 442     panel->windows= makeWindowListArray(scr, curwin, workspace);
 443     count= WMGetArrayItemCount(panel->windows);
 444
 445     if (count == 0) {
 446         WMFreeArray(panel->windows);
 447         wfree(panel);
 448         return NULL;
 449     }
 450
 451     width= ICON_TILE_SIZE*count;
 452     iconsThatFitCount= count;
 453
 454     if (width > rect.size.width) {
 455         iconsThatFitCount = (WMScreenWidth(scr->wmscreen)-SCREEN_BORDER_SPACING)/ICON_TILE_SIZE;
 456         width= iconsThatFitCount*ICON_TILE_SIZE;
 457     }
 458
 459     panel->visibleCount= iconsThatFitCount;
 460
 461     height= LABEL_HEIGHT + ICON_TILE_SIZE;
 462
 463     panel->tileTmp= RCreateImage(ICON_TILE_SIZE, ICON_TILE_SIZE, 1);
 464     panel->tile= getTile(panel);
 465     if (panel->tile && wPreferences.swbackImage[8]) {
 466         panel->bg= createBackImage(scr, width+2*BORDER_SPACE, height+2*BORDER_SPACE);
 467     }
 468     if (!panel->tileTmp || !panel->tile) {
 469         if (panel->bg)
 470           RReleaseImage(panel->bg);
 471         panel->bg= NULL;
 472         if (panel->tile)
 473           RReleaseImage(panel->tile);
 474         panel->tile= NULL;
 475         if (panel->tileTmp)
 476           RReleaseImage(panel->tileTmp);
 477         panel->tileTmp= NULL;
 478     }
 479
 480     panel->white= WMWhiteColor(scr->wmscreen);
 481     panel->font= WMBoldSystemFontOfSize(scr->wmscreen, 12);
 482     panel->icons= WMCreateArray(count);
 483     panel->images= WMCreateArray(count);
 484
 485     panel->win = WMCreateWindow(scr->wmscreen, "");
 486
 487     if (!panel->bg) {
 488         WMFrame *frame = WMCreateFrame(panel->win);
 489         WMSetFrameRelief(frame, WRSimple);
 490         WMSetViewExpandsToParent(WMWidgetView(frame), 0, 0, 0, 0);
 491
 492         panel->label = WMCreateLabel(panel->win);
 493         WMResizeWidget(panel->label, width, LABEL_HEIGHT);
 494         WMMoveWidget(panel->label, BORDER_SPACE, BORDER_SPACE+ICON_TILE_SIZE+5);
 495         WMSetLabelRelief(panel->label, WRSimple);
 496         WMSetWidgetBackgroundColor(panel->label, WMDarkGrayColor(scr->wmscreen));
 497         WMSetLabelFont(panel->label, panel->font);
 498         WMSetLabelTextColor(panel->label, panel->white);
 499
 500         height+= 5;
 501     }
 502
 503     WMResizeWidget(panel->win, width + 2*BORDER_SPACE, height + 2*BORDER_SPACE);
 504
 505     viewport= WMCreateFrame(panel->win);
 506     WMResizeWidget(viewport, width, ICON_TILE_SIZE);
 507     WMMoveWidget(viewport, BORDER_SPACE, BORDER_SPACE);
 508     WMSetFrameRelief(viewport, WRFlat);
 509
 510     panel->iconBox= WMCreateFrame(viewport);
 511     WMMoveWidget(panel->iconBox, 0, 0);
 512     WMResizeWidget(panel->iconBox, ICON_TILE_SIZE*count, ICON_TILE_SIZE);
 513     WMSetFrameRelief(panel->iconBox, WRFlat);
 514
 515     WM_ITERATE_ARRAY(panel->windows, wwin, i) {
 516         addIconForWindow(panel, panel->iconBox, wwin, i*ICON_TILE_SIZE, 0);
 517     }
 518
 519     WMMapSubwidgets(panel->win);
 520     WMRealizeWidget(panel->win);
 521
 522     WM_ITERATE_ARRAY(panel->windows, wwin, i) {
 523         changeImage(panel, i, 0);
 524     }
 525
 526     if (panel->bg) {
 527         Pixmap pixmap, mask;
 528
 529         RConvertImageMask(scr->rcontext, panel->bg, &pixmap, &mask, 250);
 530
 531         XSetWindowBackgroundPixmap(dpy, WMWidgetXID(panel->win), pixmap);
 532
 533 #ifdef SHAPE
 534         if (mask && wShapeSupported)
 535           XShapeCombineMask(dpy, WMWidgetXID(panel->win),
 536                             ShapeBounding, 0, 0, mask, ShapeSet);
 537 #endif
 538
 539         if (pixmap)
 540           XFreePixmap(dpy, pixmap);
 541         if (mask)
 542           XFreePixmap(dpy, mask);
 543     }
 544
 545     {
 546         WMPoint center;
 547         center= wGetPointToCenterRectInHead(scr, wGetHeadForPointerLocation(scr),
 548                                             width+2*BORDER_SPACE, height+2*BORDER_SPACE);
 549         WMMoveWidget(panel->win, center.x, center.y);
 550     }
 551
 552     panel->current= WMGetFirstInArray(panel->windows, curwin);
 553     if (panel->current >= 0)
 554         changeImage(panel, panel->current, 1);
 555
 556     WMMapWidget(panel->win);
 557
 558     return panel;
 559 }
 560
 561
 562 void wSwitchPanelDestroy(WSwitchPanel *panel)
 563 {
 564     int i;
 565     RImage *image;
 566
 567     if (panel->win)
 568       WMUnmapWidget(panel->win);
 569
 570     if (panel->images) {
 571         WM_ITERATE_ARRAY(panel->images, image, i) {
 572             if (image)
 573               RReleaseImage(image);
 574         }
 575         WMFreeArray(panel->images);
 576     }
 577     if (panel->win)
 578       WMDestroyWidget(panel->win);
 579     if (panel->icons)
 580       WMFreeArray(panel->icons);
 581     WMFreeArray(panel->windows);
 582     if (panel->defIcon)
 583       RReleaseImage(panel->defIcon);
 584     if (panel->tile)
 585       RReleaseImage(panel->tile);
 586     if (panel->tileTmp)
 587       RReleaseImage(panel->tileTmp);
 588     if (panel->bg)
 589       RReleaseImage(panel->bg);
 590     if (panel->font)
 591       WMReleaseFont(panel->font);
 592     wfree(panel);
 593 }
 594
 595
 596 WWindow *wSwitchPanelSelectNext(WSwitchPanel *panel, int back)
 597 {
 598     WWindow *wwin;
 599     int count = WMGetArrayItemCount(panel->windows);
 600
 601     if (count == 0)
 602       return NULL;
 603
 604     if (panel->win)
 605       changeImage(panel, panel->current, 0);
 606
 607     if (back)
 608       panel->current--;
 609     else
 610       panel->current++;
 611
 612     wwin = WMGetFromArray(panel->windows, (count+panel->current)%count);
 613
 614     if (back)
 615     {
 616         if (panel->current < 0)
 617           scrollIcons(panel, count);
 618         else if (panel->current < panel->firstVisible)
 619           scrollIcons(panel, -1);
 620     }
 621     else
 622     {
 623         if (panel->current >= count)
 624           scrollIcons(panel, -count);
 625         else if (panel->current - panel->firstVisible >= panel->visibleCount)
 626           scrollIcons(panel, 1);
 627     }
 628
 629     panel->current= (count+panel->current)%count;
 630
 631     if (panel->win) {
 632         drawTitle(panel, panel->current, wwin->frame->title);
 633
 634         changeImage(panel, panel->current, 1);
 635     }
 636
 637     return wwin;
 638 }
 639
 640
 641 WWindow *wSwitchPanelSelectFirst(WSwitchPanel *panel, int back)
 642 {
 643     WWindow *wwin;
 644     int count = WMGetArrayItemCount(panel->windows);
 645
 646     if (count == 0)
 647       return NULL;
 648
 649     if (panel->win)
 650       changeImage(panel, panel->current, 0);
 651
 652     if (back) {
 653         panel->current = count-1;
 654         scrollIcons(panel, count);
 655     } else {
 656         panel->current = 0;
 657         scrollIcons(panel, -count);
 658     }
 659
 660     wwin = WMGetFromArray(panel->windows, panel->current);
 661
 662     if (panel->win) {
 663         drawTitle(panel, panel->current, wwin->frame->title);
 664
 665         changeImage(panel, panel->current, 1);
 666     }
 667     return wwin;
 668 }
 669
 670
 671 WWindow *wSwitchPanelHandleEvent(WSwitchPanel *panel, XEvent *event)
 672 {
 673     WMFrame *icon;
 674     int i;
 675
 676     if (!panel->win)
 677       return NULL;
 678
 679     if (event->type == MotionNotify) {
 680         int focus= -1;
 681
 682         WM_ITERATE_ARRAY(panel->icons, icon, i) {
 683             if (WMWidgetXID(icon) == event->xmotion.window) {
 684                 focus= i;
 685                 break;
 686             }
 687         }
 688
 689         if (focus < 0)
 690           focus= 0;
 691
 692         if (focus >= 0 && panel->current != focus) {
 693             WWindow *wwin;
 694
 695             changeImage(panel, panel->current, 0);
 696             changeImage(panel, focus, 1);
 697             panel->current= focus;
 698
 699             wwin= WMGetFromArray(panel->windows, focus);
 700
 701             drawTitle(panel, panel->current, wwin->frame->title);
 702
 703             return wwin;
 704         }
 705     }
 706
 707     return NULL;
 708 }
 709
 710
 711 Window wSwitchPanelGetWindow(WSwitchPanel *swpanel)
 712 {
 713     if (!swpanel->win)
 714       return None;
 715     return WMWidgetXID(swpanel->win);
 716 }