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
  72 #define ICON_SELECTED (1<<1)
  73 #define ICON_DIM (1<<2)
  74
  75 static int canReceiveFocus(WWindow *wwin)
  76 {
  77         if (wwin->frame->workspace != wwin->screen_ptr->current_workspace)
  78                 return 0;
  79
  80         if (wPreferences.cycle_active_head_only &&
  81             wGetHeadForWindow(wwin) != wGetHeadForPointerLocation(wwin->screen_ptr))
  82                 return 0;
  83
  84         if (WFLAGP(wwin, no_focusable))
  85                 return 0;
  86
  87         if (!wwin->flags.mapped) {
  88                 if (!wwin->flags.shaded && !wwin->flags.miniaturized && !wwin->flags.hidden)
  89                         return 0;
  90                 else
  91                         return -1;
  92         }
  93
  94         return 1;
  95 }
  96
  97 static Bool sameWindowClass(WWindow *wwin, WWindow *curwin)
  98 {
  99         if (!wwin->wm_class || !curwin->wm_class)
 100                 return False;
 101         if (strcmp(wwin->wm_class, curwin->wm_class))
 102                 return False;
 103
 104         return True;
 105 }
 106
 107 static void changeImage(WSwitchPanel *panel, int idecks, int selected, Bool dim, Bool force)
 108 {
 109         WMFrame *icon = NULL;
 110         RImage *image = NULL;
 111         int flags;
 112         int desired = 0;
 113
 114         /* This whole function is a no-op if we aren't drawing the panel */
 115         if (!wPreferences.swtileImage)
 116                 return;
 117
 118         icon = WMGetFromArray(panel->icons, idecks);
 119         image = WMGetFromArray(panel->images, idecks);
 120         flags = (int) (uintptr_t) WMGetFromArray(panel->flags, idecks);
 121
 122         if (selected)
 123                 desired |= ICON_SELECTED;
 124         if (dim)
 125                 desired |= ICON_DIM;
 126
 127         if (flags == desired && !force)
 128                 return;
 129
 130         WMReplaceInArray(panel->flags, idecks, (void *) (uintptr_t) desired);
 131
 132         if (!panel->bg && !panel->tile && !selected)
 133                 WMSetFrameRelief(icon, WRFlat);
 134
 135         if (image && icon) {
 136                 RImage *back;
 137                 int opaq = (dim) ? 75 : 255;
 138                 RImage *tile;
 139                 WMPoint pos;
 140                 Pixmap p;
 141
 142                 if (canReceiveFocus(WMGetFromArray(panel->windows, idecks)) < 0)
 143                         opaq = 50;
 144
 145                 pos = WMGetViewPosition(WMWidgetView(icon));
 146                 back = panel->tileTmp;
 147                 if (panel->bg) {
 148                         RCopyArea(back, panel->bg,
 149                                   BORDER_SPACE + pos.x - panel->firstVisible * ICON_TILE_SIZE,
 150                                   BORDER_SPACE + pos.y, back->width, back->height, 0, 0);
 151                 } else {
 152                         RColor color;
 153                         WMScreen *wscr = WMWidgetScreen(icon);
 154                         color.red = 255;
 155                         color.red = WMRedComponentOfColor(WMGrayColor(wscr)) >> 8;
 156                         color.green = WMGreenComponentOfColor(WMGrayColor(wscr)) >> 8;
 157                         color.blue = WMBlueComponentOfColor(WMGrayColor(wscr)) >> 8;
 158                         RFillImage(back, &color);
 159                 }
 160
 161                 if (selected) {
 162                         tile = panel->tile;
 163                         RCombineArea(back, tile, 0, 0, tile->width, tile->height,
 164                                      (back->width - tile->width) / 2, (back->height - tile->height) / 2);
 165                 }
 166
 167                 RCombineAreaWithOpaqueness(back, image, 0, 0, image->width, image->height,
 168                                            (back->width - image->width) / 2, (back->height - image->height) / 2,
 169                                            opaq);
 170
 171                 RConvertImage(panel->scr->rcontext, back, &p);
 172                 XSetWindowBackgroundPixmap(dpy, WMWidgetXID(icon), p);
 173                 XClearWindow(dpy, WMWidgetXID(icon));
 174                 XFreePixmap(dpy, p);
 175         }
 176
 177         if (!panel->bg && !panel->tile && selected)
 178                 WMSetFrameRelief(icon, WRSimple);
 179 }
 180
 181 static void addIconForWindow(WSwitchPanel *panel, WMWidget *parent, WWindow *wwin, int x, int y)
 182 {
 183         WMFrame *icon = WMCreateFrame(parent);
 184         RImage *image = NULL;
 185
 186         WMSetFrameRelief(icon, WRFlat);
 187         WMResizeWidget(icon, ICON_TILE_SIZE, ICON_TILE_SIZE);
 188         WMMoveWidget(icon, x, y);
 189
 190         if (!WFLAGP(wwin, always_user_icon) && wwin->net_icon_image)
 191                 image = RRetainImage(wwin->net_icon_image);
 192
 193         /* get_icon_image() includes the default icon image */
 194         if (!image)
 195                 image = get_icon_image(panel->scr, wwin->wm_instance, wwin->wm_class, ICON_TILE_SIZE);
 196
 197         /* We must resize the icon size (~64) to the switch panel icon size (~48) */
 198         image = wIconValidateIconSize(image, ICON_SIZE);
 199
 200         WMAddToArray(panel->images, image);
 201         WMAddToArray(panel->icons, icon);
 202 }
 203
 204 static void scrollIcons(WSwitchPanel *panel, int delta)
 205 {
 206         int nfirst = panel->firstVisible + delta;
 207         int i;
 208         int count = WMGetArrayItemCount(panel->windows);
 209         Bool dim;
 210
 211         if (count <= panel->visibleCount)
 212                 return;
 213
 214         if (nfirst < 0)
 215                 nfirst = 0;
 216         else if (nfirst >= count - panel->visibleCount)
 217                 nfirst = count - panel->visibleCount;
 218
 219         if (nfirst == panel->firstVisible)
 220                 return;
 221
 222         WMMoveWidget(panel->iconBox, -nfirst * ICON_TILE_SIZE, 0);
 223
 224         panel->firstVisible = nfirst;
 225
 226         for (i = panel->firstVisible; i < panel->firstVisible + panel->visibleCount; i++) {
 227                 if (i == panel->current)
 228                         continue;
 229                 dim = ((int) (uintptr_t) WMGetFromArray(panel->flags, i) & ICON_DIM);
 230                 changeImage(panel, i, 0, dim, True);
 231         }
 232 }
 233
 234 /*
 235  * 0 1 2
 236  * 3 4 5
 237  * 6 7 8
 238  */
 239 static RImage *assemblePuzzleImage(RImage **images, int width, int height)
 240 {
 241         RImage *img;
 242         RImage *tmp;
 243         int tw, th;
 244         RColor color;
 245
 246         tw = width - images[0]->width - images[2]->width;
 247         th = height - images[0]->height - images[6]->height;
 248
 249         if (tw <= 0 || th <= 0)
 250                 return NULL;
 251
 252         img = RCreateImage(width, height, 1);
 253         if (!img)
 254                 return NULL;
 255
 256         color.red   =   0;
 257         color.green =   0;
 258         color.blue  =   0;
 259         color.alpha = 255;
 260         RFillImage(img, &color);
 261
 262         /* top */
 263         tmp = RSmoothScaleImage(images[1], tw, images[1]->height);
 264         RCopyArea(img, tmp, 0, 0, tmp->width, tmp->height, images[0]->width, 0);
 265         RReleaseImage(tmp);
 266
 267         /* bottom */
 268         tmp = RSmoothScaleImage(images[7], tw, images[7]->height);
 269         RCopyArea(img, tmp, 0, 0, tmp->width, tmp->height, images[6]->width, height - images[6]->height);
 270         RReleaseImage(tmp);
 271
 272         /* left */
 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         tmp = RSmoothScaleImage(images[5], images[5]->width, th);
 279         RCopyArea(img, tmp, 0, 0, tmp->width, tmp->height, width - images[5]->width, images[2]->height);
 280         RReleaseImage(tmp);
 281
 282         /* center */
 283         tmp = RSmoothScaleImage(images[4], tw, th);
 284         RCopyArea(img, tmp, 0, 0, tmp->width, tmp->height, images[0]->width, images[0]->height);
 285         RReleaseImage(tmp);
 286
 287         /* corners */
 288         RCopyArea(img, images[0], 0, 0, images[0]->width, images[0]->height, 0, 0);
 289         RCopyArea(img, images[2], 0, 0, images[2]->width, images[2]->height, width - images[2]->width, 0);
 290         RCopyArea(img, images[6], 0, 0, images[6]->width, images[6]->height, 0, height - images[6]->height);
 291         RCopyArea(img, images[8], 0, 0, images[8]->width, images[8]->height,
 292                   width - images[8]->width, height - images[8]->height);
 293
 294         return img;
 295 }
 296
 297 static RImage *createBackImage(int width, int height)
 298 {
 299         return assemblePuzzleImage(wPreferences.swbackImage, width, height);
 300 }
 301
 302 static RImage *getTile(void)
 303 {
 304         RImage *stile;
 305
 306         if (!wPreferences.swtileImage)
 307                 return NULL;
 308
 309         stile = RScaleImage(wPreferences.swtileImage, ICON_TILE_SIZE, ICON_TILE_SIZE);
 310         if (!stile)
 311                 return wPreferences.swtileImage;
 312
 313         return stile;
 314 }
 315
 316 static void drawTitle(WSwitchPanel *panel, int idecks, const char *title)
 317 {
 318         char *ntitle;
 319         int width = WMWidgetWidth(panel->win);
 320         int x;
 321
 322         if (title)
 323                 ntitle = ShrinkString(panel->font, title, width - 2 * BORDER_SPACE);
 324         else
 325                 ntitle = NULL;
 326
 327         if (panel->bg) {
 328                 if (ntitle) {
 329                         if (strcmp(ntitle, title) != 0) {
 330                                 x = BORDER_SPACE;
 331                         } else {
 332                                 int w = WMWidthOfString(panel->font, ntitle, strlen(ntitle));
 333
 334                                 x = BORDER_SPACE + (idecks - panel->firstVisible) * ICON_TILE_SIZE +
 335                                     ICON_TILE_SIZE / 2 - w / 2;
 336                                 if (x < BORDER_SPACE)
 337                                         x = BORDER_SPACE;
 338                                 else if (x + w > width - BORDER_SPACE)
 339                                         x = width - BORDER_SPACE - w;
 340                         }
 341                 }
 342
 343                 XClearWindow(dpy, WMWidgetXID(panel->win));
 344                 if (ntitle)
 345                         WMDrawString(panel->scr->wmscreen,
 346                                      WMWidgetXID(panel->win),
 347                                      panel->white, panel->font,
 348                                      x,
 349                                      WMWidgetHeight(panel->win) - BORDER_SPACE - LABEL_HEIGHT +
 350                                      WMFontHeight(panel->font) / 2, ntitle, strlen(ntitle));
 351         } else {
 352                 if (ntitle)
 353                         WMSetLabelText(panel->label, ntitle);
 354         }
 355
 356         if (ntitle)
 357                 free(ntitle);
 358 }
 359
 360 static WMArray *makeWindowListArray(WScreen *scr, int include_unmapped, Bool class_only)
 361 {
 362         WMArray *windows = WMCreateArray(10);
 363         WWindow *wwin = scr->focused_window;
 364
 365         while (wwin) {
 366                 if ((canReceiveFocus(wwin) != 0) &&
 367                     (wwin->flags.mapped || wwin->flags.shaded || include_unmapped)) {
 368                         if (class_only)
 369                                 if (!sameWindowClass(scr->focused_window, wwin))
 370                                         continue;
 371                         if (!WFLAGP(wwin, skip_switchpanel))
 372                                 WMAddToArray(windows, wwin);
 373                 }
 374                 wwin = wwin->prev;
 375         }
 376         return windows;
 377 }
 378
 379 static WMArray *makeWindowFlagsArray(int count)
 380 {
 381         WMArray *flags = WMCreateArray(count);
 382         int i;
 383
 384         for (i = 0; i < count; i++)
 385                 WMAddToArray(flags, (void *) 0);
 386
 387         return flags;
 388 }
 389
 390 WSwitchPanel *wInitSwitchPanel(WScreen *scr, WWindow *curwin, Bool class_only)
 391 {
 392         WWindow *wwin;
 393         WSwitchPanel *panel = wmalloc(sizeof(WSwitchPanel));
 394         WMFrame *viewport;
 395         int i, width, height, iconsThatFitCount, count;
 396         WMRect rect = wGetRectForHead(scr, wGetHeadForPointerLocation(scr));
 397
 398         panel->scr = scr;
 399         panel->windows = makeWindowListArray(scr, wPreferences.swtileImage != NULL, class_only);
 400         count = WMGetArrayItemCount(panel->windows);
 401         if (count)
 402                 panel->flags = makeWindowFlagsArray(count);
 403
 404         if (count == 0) {
 405                 WMFreeArray(panel->windows);
 406                 wfree(panel);
 407                 return NULL;
 408         }
 409
 410         width = ICON_TILE_SIZE * count;
 411         iconsThatFitCount = count;
 412
 413         if (width > rect.size.width) {
 414                 iconsThatFitCount = (rect.size.width - SCREEN_BORDER_SPACING) / ICON_TILE_SIZE;
 415                 width = iconsThatFitCount * ICON_TILE_SIZE;
 416         }
 417
 418         panel->visibleCount = iconsThatFitCount;
 419
 420         if (!wPreferences.swtileImage)
 421                 return panel;
 422
 423         height = LABEL_HEIGHT + ICON_TILE_SIZE;
 424
 425         panel->tileTmp = RCreateImage(ICON_TILE_SIZE, ICON_TILE_SIZE, 1);
 426         panel->tile = getTile();
 427         if (panel->tile && wPreferences.swbackImage[8])
 428                 panel->bg = createBackImage(width + 2 * BORDER_SPACE, height + 2 * BORDER_SPACE);
 429
 430         if (!panel->tileTmp || !panel->tile) {
 431                 if (panel->bg)
 432                         RReleaseImage(panel->bg);
 433                 panel->bg = NULL;
 434                 if (panel->tile)
 435                         RReleaseImage(panel->tile);
 436                 panel->tile = NULL;
 437                 if (panel->tileTmp)
 438                         RReleaseImage(panel->tileTmp);
 439                 panel->tileTmp = NULL;
 440         }
 441
 442         panel->white = WMWhiteColor(scr->wmscreen);
 443         panel->font = WMBoldSystemFontOfSize(scr->wmscreen, 12);
 444         panel->icons = WMCreateArray(count);
 445         panel->images = WMCreateArray(count);
 446
 447         panel->win = WMCreateWindow(scr->wmscreen, "");
 448
 449         if (!panel->bg) {
 450                 WMFrame *frame = WMCreateFrame(panel->win);
 451                 WMColor *darkGray = WMDarkGrayColor(scr->wmscreen);
 452                 WMSetFrameRelief(frame, WRSimple);
 453                 WMSetViewExpandsToParent(WMWidgetView(frame), 0, 0, 0, 0);
 454
 455                 panel->label = WMCreateLabel(panel->win);
 456                 WMResizeWidget(panel->label, width, LABEL_HEIGHT);
 457                 WMMoveWidget(panel->label, BORDER_SPACE, BORDER_SPACE + ICON_TILE_SIZE + 5);
 458                 WMSetLabelRelief(panel->label, WRSimple);
 459                 WMSetWidgetBackgroundColor(panel->label, darkGray);
 460                 WMSetLabelFont(panel->label, panel->font);
 461                 WMSetLabelTextColor(panel->label, panel->white);
 462
 463                 WMReleaseColor(darkGray);
 464                 height += 5;
 465         }
 466
 467         WMResizeWidget(panel->win, width + 2 * BORDER_SPACE, height + 2 * BORDER_SPACE);
 468
 469         viewport = WMCreateFrame(panel->win);
 470         WMResizeWidget(viewport, width, ICON_TILE_SIZE);
 471         WMMoveWidget(viewport, BORDER_SPACE, BORDER_SPACE);
 472         WMSetFrameRelief(viewport, WRFlat);
 473
 474         panel->iconBox = WMCreateFrame(viewport);
 475         WMMoveWidget(panel->iconBox, 0, 0);
 476         WMResizeWidget(panel->iconBox, ICON_TILE_SIZE * count, ICON_TILE_SIZE);
 477         WMSetFrameRelief(panel->iconBox, WRFlat);
 478
 479         WM_ITERATE_ARRAY(panel->windows, wwin, i) {
 480                 addIconForWindow(panel, panel->iconBox, wwin, i * ICON_TILE_SIZE, 0);
 481         }
 482
 483         WMMapSubwidgets(panel->win);
 484         WMRealizeWidget(panel->win);
 485
 486         WM_ITERATE_ARRAY(panel->windows, wwin, i) {
 487                 changeImage(panel, i, 0, False, True);
 488         }
 489
 490         if (panel->bg) {
 491                 Pixmap pixmap, mask;
 492
 493                 RConvertImageMask(scr->rcontext, panel->bg, &pixmap, &mask, 250);
 494
 495                 XSetWindowBackgroundPixmap(dpy, WMWidgetXID(panel->win), pixmap);
 496
 497 #ifdef USE_XSHAPE
 498                 if (mask && w_global.xext.shape.supported)
 499                         XShapeCombineMask(dpy, WMWidgetXID(panel->win), ShapeBounding, 0, 0, mask, ShapeSet);
 500 #endif
 501                 if (pixmap)
 502                         XFreePixmap(dpy, pixmap);
 503
 504                 if (mask)
 505                         XFreePixmap(dpy, mask);
 506         }
 507
 508         {
 509                 WMPoint center;
 510                 center = wGetPointToCenterRectInHead(scr, wGetHeadForPointerLocation(scr),
 511                                                      width + 2 * BORDER_SPACE, height + 2 * BORDER_SPACE);
 512                 WMMoveWidget(panel->win, center.x, center.y);
 513         }
 514
 515         panel->current = WMGetFirstInArray(panel->windows, curwin);
 516         if (panel->current >= 0)
 517                 changeImage(panel, panel->current, 1, False, False);
 518
 519         WMMapWidget(panel->win);
 520
 521         return panel;
 522 }
 523
 524 void wSwitchPanelDestroy(WSwitchPanel *panel)
 525 {
 526         int i;
 527         RImage *image;
 528
 529         if (panel->win) {
 530                 Window info_win = panel->scr->info_window;
 531                 XEvent ev;
 532                 ev.xclient.type = ClientMessage;
 533                 ev.xclient.message_type = w_global.atom.wm.ignore_focus_events;
 534                 ev.xclient.format = 32;
 535                 ev.xclient.data.l[0] = True;
 536
 537                 XSendEvent(dpy, info_win, True, EnterWindowMask, &ev);
 538                 WMUnmapWidget(panel->win);
 539
 540                 ev.xclient.data.l[0] = False;
 541                 XSendEvent(dpy, info_win, True, EnterWindowMask, &ev);
 542         }
 543
 544         if (panel->images) {
 545                 WM_ITERATE_ARRAY(panel->images, image, i) {
 546                         if (image)
 547                                 RReleaseImage(image);
 548                 }
 549                 WMFreeArray(panel->images);
 550         }
 551
 552         if (panel->win)
 553                 WMDestroyWidget(panel->win);
 554
 555         if (panel->icons)
 556                 WMFreeArray(panel->icons);
 557
 558         if (panel->flags)
 559                 WMFreeArray(panel->flags);
 560
 561         WMFreeArray(panel->windows);
 562
 563         if (panel->tile)
 564                 RReleaseImage(panel->tile);
 565
 566         if (panel->tileTmp)
 567                 RReleaseImage(panel->tileTmp);
 568
 569         if (panel->bg)
 570                 RReleaseImage(panel->bg);
 571
 572         if (panel->font)
 573                 WMReleaseFont(panel->font);
 574
 575         if (panel->white)
 576                 WMReleaseColor(panel->white);
 577
 578         wfree(panel);
 579 }
 580
 581 WWindow *wSwitchPanelSelectNext(WSwitchPanel *panel, int back, int ignore_minimized, Bool class_only)
 582 {
 583         WWindow *wwin, *curwin, *tmpwin;
 584         int count = WMGetArrayItemCount(panel->windows);
 585         int orig = panel->current;
 586         int i;
 587         Bool dim = False;
 588
 589         if (count == 0)
 590                 return NULL;
 591
 592         if (!wPreferences.cycle_ignore_minimized)
 593                 ignore_minimized = False;
 594
 595         if (ignore_minimized && canReceiveFocus(WMGetFromArray(panel->windows, (count + panel->current) % count)) < 0)
 596                 ignore_minimized = False;
 597
 598         curwin = WMGetFromArray(panel->windows, orig);
 599         do {
 600                 do {
 601                         if (back)
 602                                 panel->current--;
 603                         else
 604                                 panel->current++;
 605
 606                         panel->current = (count + panel->current) % count;
 607                         wwin = WMGetFromArray(panel->windows, panel->current);
 608
 609                         if (!class_only)
 610                                 break;
 611                         if (panel->current == orig)
 612                                 break;
 613                 } while (!sameWindowClass(wwin, curwin));
 614         } while (ignore_minimized && panel->current != orig && canReceiveFocus(wwin) < 0);
 615
 616         WM_ITERATE_ARRAY(panel->windows, tmpwin, i) {
 617                 if (i == panel->current)
 618                         continue;
 619                 if (!class_only || sameWindowClass(tmpwin, curwin))
 620                         changeImage(panel, i, 0, False, False);
 621                 else {
 622                         if (i == orig)
 623                                 dim = True;
 624                         changeImage(panel, i, 0, True, False);
 625                 }
 626
 627         }
 628
 629         if (panel->current < panel->firstVisible)
 630                 scrollIcons(panel, panel->current - panel->firstVisible);
 631         else if (panel->current - panel->firstVisible >= panel->visibleCount)
 632                 scrollIcons(panel, panel->current - panel->firstVisible - panel->visibleCount + 1);
 633
 634         if (panel->win) {
 635                 drawTitle(panel, panel->current, wwin->frame->title);
 636                 if (panel->current != orig)
 637                         changeImage(panel, orig, 0, dim, False);
 638                 changeImage(panel, panel->current, 1, False, False);
 639         }
 640
 641         return wwin;
 642 }
 643
 644 WWindow *wSwitchPanelSelectFirst(WSwitchPanel *panel, int back)
 645 {
 646         WWindow *wwin;
 647         int count = WMGetArrayItemCount(panel->windows);
 648         char *title;
 649         int i;
 650
 651         if (count == 0)
 652                 return NULL;
 653
 654         if (back) {
 655                 panel->current = count - 1;
 656                 scrollIcons(panel, count);
 657         } else {
 658                 panel->current = 0;
 659                 scrollIcons(panel, -count);
 660         }
 661
 662         wwin = WMGetFromArray(panel->windows, panel->current);
 663         title = wwin->frame->title;
 664
 665         if (panel->win) {
 666                 for (WMArrayFirst(panel->windows, &(i)); (i) != WANotFound; WMArrayNext(panel->windows, &(i)))
 667                         changeImage(panel, i, i == panel->current, False, False);
 668
 669                 drawTitle(panel, panel->current, title);
 670         }
 671
 672         return wwin;
 673 }
 674
 675 WWindow *wSwitchPanelHandleEvent(WSwitchPanel *panel, XEvent *event)
 676 {
 677         WMFrame *icon;
 678         int i;
 679         int focus = -1;
 680
 681         if (!panel->win)
 682                 return NULL;
 683
 684         if (event->type == MotionNotify) {
 685                 WM_ITERATE_ARRAY(panel->icons, icon, i) {
 686                         if (WMWidgetXID(icon) == event->xmotion.window) {
 687                                 focus = i;
 688                                 break;
 689                         }
 690                 }
 691         }
 692
 693         if (focus >= 0 && panel->current != focus) {
 694                 WWindow *wwin;
 695
 696                 WM_ITERATE_ARRAY(panel->windows, wwin, i) {
 697                         changeImage(panel, i, i == focus, False, False);
 698                 }
 699                 panel->current = focus;
 700
 701                 wwin = WMGetFromArray(panel->windows, focus);
 702
 703                 drawTitle(panel, panel->current, wwin->frame->title);
 704
 705                 return wwin;
 706         }
 707
 708         return NULL;
 709 }
 710
 711 Window wSwitchPanelGetWindow(WSwitchPanel *swpanel)
 712 {
 713         if (!swpanel->win)
 714                 return None;
 715
 716         return WMWidgetXID(swpanel->win);
 717 }