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 #include "WindowMaker.h"
  29 #include "screen.h"
  30 #include "wcore.h"
  31 #include "framewin.h"
  32 #include "window.h"
  33 #include "defaults.h"
  34 #include "switchpanel.h"
  35 #include "funcs.h"
  36 #include "xinerama.h"
  37
  38 #ifdef SHAPE
  39 #include <X11/extensions/shape.h>
  40
  41 extern Bool wShapeSupported;
  42 #endif
  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 extern WPreferences wPreferences;
  69
  70 #define BORDER_SPACE 10
  71 #define ICON_SIZE 48
  72 #define ICON_TILE_SIZE 64
  73 #define LABEL_HEIGHT 25
  74 #define SCREEN_BORDER_SPACING 2*20
  75 #define SCROLL_STEPS (ICON_TILE_SIZE/2)
  76
  77 static int canReceiveFocus(WWindow * wwin)
  78 {
  79         if (wwin->frame->workspace != wwin->screen_ptr->current_workspace)
  80                 return 0;
  81         if (!wwin->flags.mapped) {
  82                 if (!wwin->flags.shaded && !wwin->flags.miniaturized && !wwin->flags.hidden)
  83                         return 0;
  84                 else
  85                         return -1;
  86         }
  87         if (WFLAGP(wwin, no_focusable))
  88                 return 0;
  89         return 1;
  90 }
  91
  92 static void changeImage(WSwitchPanel * panel, int idecks, int selected)
  93 {
  94         WMFrame *icon = WMGetFromArray(panel->icons, idecks);
  95         RImage *image = WMGetFromArray(panel->images, idecks);
  96
  97         if (!panel->bg && !panel->tile) {
  98                 if (!selected)
  99                         WMSetFrameRelief(icon, WRFlat);
 100         }
 101
 102         if (image && icon) {
 103                 RImage *back;
 104                 int opaq = 255;
 105                 RImage *tile;
 106                 WMPoint pos;
 107                 Pixmap p;
 108
 109                 if (canReceiveFocus(WMGetFromArray(panel->windows, idecks)) < 0)
 110                         opaq = 50;
 111
 112                 pos = WMGetViewPosition(WMWidgetView(icon));
 113                 back = panel->tileTmp;
 114                 if (panel->bg)
 115                         RCopyArea(back, panel->bg,
 116                                   BORDER_SPACE + pos.x - panel->firstVisible * ICON_TILE_SIZE,
 117                                   BORDER_SPACE + pos.y, back->width, back->height, 0, 0);
 118                 else {
 119                         RColor color;
 120                         WMScreen *wscr = WMWidgetScreen(icon);
 121                         color.red = 255;
 122                         color.red = WMRedComponentOfColor(WMGrayColor(wscr)) >> 8;
 123                         color.green = WMGreenComponentOfColor(WMGrayColor(wscr)) >> 8;
 124                         color.blue = WMBlueComponentOfColor(WMGrayColor(wscr)) >> 8;
 125                         RFillImage(back, &color);
 126                 }
 127                 if (selected) {
 128                         tile = panel->tile;
 129                         RCombineArea(back, tile, 0, 0, tile->width, tile->height,
 130                                      (back->width - tile->width) / 2, (back->height - tile->height) / 2);
 131                 }
 132                 RCombineAreaWithOpaqueness(back, image, 0, 0, image->width, image->height,
 133                                            (back->width - image->width) / 2, (back->height - image->height) / 2,
 134                                            opaq);
 135
 136                 RConvertImage(panel->scr->rcontext, back, &p);
 137                 XSetWindowBackgroundPixmap(dpy, WMWidgetXID(icon), p);
 138                 XClearWindow(dpy, WMWidgetXID(icon));
 139                 XFreePixmap(dpy, p);
 140         }
 141
 142         if (!panel->bg && !panel->tile) {
 143                 if (selected)
 144                         WMSetFrameRelief(icon, WRSimple);
 145         }
 146 }
 147
 148 static RImage *scaleDownIfNeeded(RImage * image)
 149 {
 150         if (image && ((image->width - ICON_SIZE) > 2 || (image->height - ICON_SIZE) > 2)) {
 151                 RImage *nimage;
 152                 nimage = RScaleImage(image, ICON_SIZE, (image->height * ICON_SIZE / image->width));
 153                 RReleaseImage(image);
 154                 image = nimage;
 155         }
 156         return image;
 157 }
 158
 159 static void addIconForWindow(WSwitchPanel * panel, WMWidget * parent, WWindow * wwin, int x, int y)
 160 {
 161         WMFrame *icon = WMCreateFrame(parent);
 162         RImage *image = NULL;
 163
 164         WMSetFrameRelief(icon, WRFlat);
 165         WMResizeWidget(icon, ICON_TILE_SIZE, ICON_TILE_SIZE);
 166         WMMoveWidget(icon, x, y);
 167
 168         if (!WFLAGP(wwin, always_user_icon) && wwin->net_icon_image)
 169                 image = RRetainImage(wwin->net_icon_image);
 170
 171         // Make this use a caching thing. When there are many windows,
 172         // it's very likely that most of them are instances of the same thing,
 173         // so caching them should get performance acceptable in these cases.
 174         if (!image)
 175                 image = wDefaultGetImage(panel->scr, wwin->wm_instance, wwin->wm_class);
 176
 177         if (!image && !panel->defIcon) {
 178                 char *file = wDefaultGetIconFile(panel->scr, NULL, NULL, False);
 179                 if (file) {
 180                         char *path = FindImage(wPreferences.icon_path, file);
 181                         if (path) {
 182                                 image = RLoadImage(panel->scr->rcontext, path, 0);
 183                                 wfree(path);
 184                         }
 185                 }
 186                 if (image)
 187                         panel->defIcon = scaleDownIfNeeded(image);
 188                 image = NULL;
 189         }
 190         if (!image && panel->defIcon)
 191                 image = RRetainImage(panel->defIcon);
 192
 193         image = scaleDownIfNeeded(image);
 194
 195         WMAddToArray(panel->images, image);
 196         WMAddToArray(panel->icons, icon);
 197 }
 198
 199 static void scrollIcons(WSwitchPanel * panel, int delta)
 200 {
 201         int nfirst = panel->firstVisible + delta;
 202         int i;
 203         int count = WMGetArrayItemCount(panel->windows);
 204 //    int nx, ox;
 205 //    struct timeval tv1, tv2;
 206
 207         if (count <= panel->visibleCount)
 208                 return;
 209
 210         if (nfirst < 0)
 211                 nfirst = 0;
 212         else if (nfirst >= count - panel->visibleCount)
 213                 nfirst = count - panel->visibleCount;
 214
 215         if (nfirst == panel->firstVisible)
 216                 return;
 217 /*
 218     ox = -panel->firstVisible * ICON_TILE_SIZE;
 219     nx = -nfirst * ICON_TILE_SIZE;
 220     for (i= 0; i < SCROLL_STEPS; i++) {
 221         unsigned int diff;
 222         gettimeofday(&tv1, NULL);
 223         WMMoveWidget(panel->iconBox, (nx*i + ox*(SCROLL_STEPS-i))/(SCROLL_STEPS-1), 0);
 224         XSync(dpy, False);
 225         gettimeofday(&tv2, NULL);
 226         diff = (tv2.tv_sec-tv1.tv_sec)*10000+(tv2.tv_usec-tv1.tv_usec)/100;
 227         if (diff < 200)
 228           wusleep(300-diff);
 229     }
 230  */
 231         WMMoveWidget(panel->iconBox, -nfirst * ICON_TILE_SIZE, 0);
 232
 233         panel->firstVisible = nfirst;
 234
 235         for (i = panel->firstVisible; i < panel->firstVisible + panel->visibleCount; i++) {
 236                 changeImage(panel, i, i == panel->current);
 237         }
 238 }
 239
 240 /*
 241  * 0 1 2
 242  * 3 4 5
 243  * 6 7 8
 244  */
 245 static RImage *assemblePuzzleImage(RImage ** images, int width, int height)
 246 {
 247         RImage *img = RCreateImage(width, height, 1);
 248         RImage *tmp;
 249         int tw, th;
 250         RColor color;
 251         if (!img)
 252                 return NULL;
 253
 254         color.red = 0;
 255         color.green = 0;
 256         color.blue = 0;
 257         color.alpha = 255;
 258
 259         RFillImage(img, &color);
 260
 261         tw = width - images[0]->width - images[2]->width;
 262         th = height - images[0]->height - images[6]->height;
 263
 264         if (tw <= 0 || th <= 0) {
 265                 //XXX
 266                 return NULL;
 267         }
 268
 269         /* top */
 270         if (tw > 0) {
 271                 tmp = RSmoothScaleImage(images[1], tw, images[1]->height);
 272                 RCopyArea(img, tmp, 0, 0, tmp->width, tmp->height, images[0]->width, 0);
 273                 RReleaseImage(tmp);
 274         }
 275         /* bottom */
 276         if (tw > 0) {
 277                 tmp = RSmoothScaleImage(images[7], tw, images[7]->height);
 278                 RCopyArea(img, tmp, 0, 0, tmp->width, tmp->height, images[6]->width, height - images[6]->height);
 279                 RReleaseImage(tmp);
 280         }
 281         /* left */
 282         if (th > 0) {
 283                 tmp = RSmoothScaleImage(images[3], images[3]->width, th);
 284                 RCopyArea(img, tmp, 0, 0, tmp->width, tmp->height, 0, images[0]->height);
 285                 RReleaseImage(tmp);
 286         }
 287         /* right */
 288         if (th > 0) {
 289                 tmp = RSmoothScaleImage(images[5], images[5]->width, th);
 290                 RCopyArea(img, tmp, 0, 0, tmp->width, tmp->height, width - images[5]->width, images[2]->height);
 291                 RReleaseImage(tmp);
 292         }
 293         /* center */
 294         if (tw > 0 && th > 0) {
 295                 tmp = RSmoothScaleImage(images[4], tw, th);
 296                 RCopyArea(img, tmp, 0, 0, tmp->width, tmp->height, images[0]->width, images[0]->height);
 297                 RReleaseImage(tmp);
 298         }
 299
 300         /* corners */
 301         RCopyArea(img, images[0], 0, 0, images[0]->width, images[0]->height, 0, 0);
 302
 303         RCopyArea(img, images[2], 0, 0, images[2]->width, images[2]->height, width - images[2]->width, 0);
 304
 305         RCopyArea(img, images[6], 0, 0, images[6]->width, images[6]->height, 0, height - images[6]->height);
 306
 307         RCopyArea(img, images[8], 0, 0, images[8]->width, images[8]->height,
 308                   width - images[8]->width, height - images[8]->height);
 309
 310         return img;
 311 }
 312
 313 static RImage *createBackImage(WScreen * scr, int width, int height)
 314 {
 315         return assemblePuzzleImage(wPreferences.swbackImage, width, height);
 316 }
 317
 318 static RImage *getTile(WSwitchPanel * panel)
 319 {
 320         RImage *stile;
 321
 322         if (!wPreferences.swtileImage)
 323                 return NULL;
 324
 325         stile = RScaleImage(wPreferences.swtileImage, ICON_TILE_SIZE, ICON_TILE_SIZE);
 326         if (!stile)
 327                 return wPreferences.swtileImage;
 328
 329         return stile;
 330 }
 331
 332 static void drawTitle(WSwitchPanel * panel, int idecks, char *title)
 333 {
 334         char *ntitle;
 335         int width = WMWidgetWidth(panel->win);
 336         int x;
 337
 338         if (title)
 339                 ntitle = ShrinkString(panel->font, title, width - 2 * BORDER_SPACE);
 340         else
 341                 ntitle = NULL;
 342
 343         if (panel->bg) {
 344                 if (ntitle) {
 345                         if (strcmp(ntitle, title) != 0)
 346                                 x = BORDER_SPACE;
 347                         else {
 348                                 int w = WMWidthOfString(panel->font, ntitle, strlen(ntitle));
 349
 350                                 x = BORDER_SPACE + (idecks - panel->firstVisible) * ICON_TILE_SIZE +
 351                                     ICON_TILE_SIZE / 2 - w / 2;
 352                                 if (x < BORDER_SPACE)
 353                                         x = BORDER_SPACE;
 354                                 else if (x + w > width - BORDER_SPACE)
 355                                         x = width - BORDER_SPACE - w;
 356                         }
 357                 }
 358                 XClearWindow(dpy, WMWidgetXID(panel->win));
 359                 if (ntitle)
 360                         WMDrawString(panel->scr->wmscreen,
 361                                      WMWidgetXID(panel->win),
 362                                      panel->white, panel->font,
 363                                      x,
 364                                      WMWidgetHeight(panel->win) - BORDER_SPACE - LABEL_HEIGHT +
 365                                      WMFontHeight(panel->font) / 2, ntitle, strlen(ntitle));
 366         } else {
 367                 if (ntitle)
 368                         WMSetLabelText(panel->label, ntitle);
 369         }
 370         if (ntitle)
 371                 free(ntitle);
 372 }
 373
 374 static WMArray *makeWindowListArray(WScreen * scr, WWindow * curwin, int workspace, int include_unmapped)
 375 {
 376         WMArray *windows = WMCreateArray(10);
 377         int fl;
 378         WWindow *wwin;
 379
 380         for (fl = 0; fl < 2; fl++) {
 381                 for (wwin = curwin; wwin; wwin = wwin->prev) {
 382                         if (((!fl && canReceiveFocus(wwin) > 0) || (fl && canReceiveFocus(wwin) < 0)) &&
 383                             (!WFLAGP(wwin, skip_window_list) || wwin->flags.internal_window) &&
 384                             (wwin->flags.mapped || include_unmapped)) {
 385                                 WMAddToArray(windows, wwin);
 386                         }
 387                 }
 388                 wwin = curwin;
 389                 /* start over from the beginning of the list */
 390                 while (wwin->next)
 391                         wwin = wwin->next;
 392
 393                 for (wwin = curwin; wwin && wwin != curwin; wwin = wwin->prev) {
 394                         if (((!fl && canReceiveFocus(wwin) > 0) || (fl && canReceiveFocus(wwin) < 0)) &&
 395                             (!WFLAGP(wwin, skip_window_list) || wwin->flags.internal_window) &&
 396                             (wwin->flags.mapped || include_unmapped)) {
 397                                 WMAddToArray(windows, wwin);
 398                         }
 399                 }
 400         }
 401
 402         return windows;
 403 }
 404
 405 WSwitchPanel *wInitSwitchPanel(WScreen * scr, WWindow * curwin, int workspace)
 406 {
 407         WWindow *wwin;
 408         WSwitchPanel *panel = wmalloc(sizeof(WSwitchPanel));
 409         WMFrame *viewport;
 410         int i;
 411         int width, height;
 412         int iconsThatFitCount;
 413         int count;
 414         WMRect rect;
 415         rect = wGetRectForHead(scr, wGetHeadForPointerLocation(scr));
 416
 417         memset(panel, 0, sizeof(WSwitchPanel));
 418
 419         panel->scr = scr;
 420
 421         panel->windows = makeWindowListArray(scr, curwin, workspace, wPreferences.swtileImage != 0);
 422         count = WMGetArrayItemCount(panel->windows);
 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(panel);
 447         if (panel->tile && wPreferences.swbackImage[8]) {
 448                 panel->bg = createBackImage(scr, 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);
 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 SHAPE
 518                 if (mask && wShapeSupported)
 519                         XShapeCombineMask(dpy, WMWidgetXID(panel->win), ShapeBounding, 0, 0, mask, ShapeSet);
 520 #endif
 521
 522                 if (pixmap)
 523                         XFreePixmap(dpy, pixmap);
 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);
 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                 WMUnmapWidget(panel->win);
 551
 552         if (panel->images) {
 553                 WM_ITERATE_ARRAY(panel->images, image, i) {
 554                         if (image)
 555                                 RReleaseImage(image);
 556                 }
 557                 WMFreeArray(panel->images);
 558         }
 559         if (panel->win)
 560                 WMDestroyWidget(panel->win);
 561         if (panel->icons)
 562                 WMFreeArray(panel->icons);
 563         WMFreeArray(panel->windows);
 564         if (panel->defIcon)
 565                 RReleaseImage(panel->defIcon);
 566         if (panel->tile)
 567                 RReleaseImage(panel->tile);
 568         if (panel->tileTmp)
 569                 RReleaseImage(panel->tileTmp);
 570         if (panel->bg)
 571                 RReleaseImage(panel->bg);
 572         if (panel->font)
 573                 WMReleaseFont(panel->font);
 574         if (panel->white)
 575                 WMReleaseColor(panel->white);
 576         wfree(panel);
 577 }
 578
 579 WWindow *wSwitchPanelSelectNext(WSwitchPanel * panel, int back)
 580 {
 581         WWindow *wwin;
 582         int count = WMGetArrayItemCount(panel->windows);
 583
 584         if (count == 0)
 585                 return NULL;
 586
 587         if (panel->win)
 588                 changeImage(panel, panel->current, 0);
 589
 590         if (back)
 591                 panel->current--;
 592         else
 593                 panel->current++;
 594
 595         wwin = WMGetFromArray(panel->windows, (count + panel->current) % count);
 596
 597         if (back) {
 598                 if (panel->current < 0)
 599                         scrollIcons(panel, count);
 600                 else if (panel->current < panel->firstVisible)
 601                         scrollIcons(panel, -1);
 602         } else {
 603                 if (panel->current >= count)
 604                         scrollIcons(panel, -count);
 605                 else if (panel->current - panel->firstVisible >= panel->visibleCount)
 606                         scrollIcons(panel, 1);
 607         }
 608
 609         panel->current = (count + panel->current) % count;
 610
 611         if (panel->win) {
 612                 drawTitle(panel, panel->current, wwin->frame->title);
 613
 614                 changeImage(panel, panel->current, 1);
 615         }
 616
 617         return wwin;
 618 }
 619
 620 WWindow *wSwitchPanelSelectFirst(WSwitchPanel * panel, int back)
 621 {
 622         WWindow *wwin;
 623         int count = WMGetArrayItemCount(panel->windows);
 624
 625         if (count == 0)
 626                 return NULL;
 627
 628         if (panel->win)
 629                 changeImage(panel, panel->current, 0);
 630
 631         if (back) {
 632                 panel->current = count - 1;
 633                 scrollIcons(panel, count);
 634         } else {
 635                 panel->current = 0;
 636                 scrollIcons(panel, -count);
 637         }
 638
 639         wwin = WMGetFromArray(panel->windows, panel->current);
 640
 641         if (panel->win) {
 642                 drawTitle(panel, panel->current, wwin->frame->title);
 643
 644                 changeImage(panel, panel->current, 1);
 645         }
 646         return wwin;
 647 }
 648
 649 WWindow *wSwitchPanelHandleEvent(WSwitchPanel * panel, XEvent * event)
 650 {
 651         WMFrame *icon;
 652         int i;
 653         int focus = -1;
 654
 655         if (!panel->win)
 656                 return NULL;
 657
 658         /*   if (event->type == LeaveNotify) {
 659            if (event->xcrossing.window == WMWidgetXID(panel->win))
 660            focus= 0;
 661            } else */ if (event->type == MotionNotify) {
 662
 663                 WM_ITERATE_ARRAY(panel->icons, icon, i) {
 664                         if (WMWidgetXID(icon) == event->xmotion.window) {
 665                                 focus = i;
 666                                 break;
 667                         }
 668                 }
 669         }
 670         if (focus >= 0 && panel->current != focus) {
 671                 WWindow *wwin;
 672
 673                 changeImage(panel, panel->current, 0);
 674                 changeImage(panel, focus, 1);
 675                 panel->current = focus;
 676
 677                 wwin = WMGetFromArray(panel->windows, focus);
 678
 679                 drawTitle(panel, panel->current, wwin->frame->title);
 680
 681                 return wwin;
 682         }
 683
 684         return NULL;
 685 }
 686
 687 Window wSwitchPanelGetWindow(WSwitchPanel * swpanel)
 688 {
 689         if (!swpanel->win)
 690                 return None;
 691         return WMWidgetXID(swpanel->win);
 692 }