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 <stdlib.h>
  24 #include <string.h>
  25 #include <sys/time.h>
  26
  27 #include "WindowMaker.h"
  28 #include "screen.h"
  29 #include "framewin.h"
  30 #include "window.h"
  31 #include "defaults.h"
  32 #include "switchpanel.h"
  33 #include "funcs.h"
  34 #include "xinerama.h"
  35
  36 extern Atom _XA_WM_IGNORE_FOCUS_EVENTS;
  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
  82         if (wPreferences.cycle_active_head_only &&
  83             wGetHeadForWindow(wwin) != wGetHeadForPointerLocation(wwin->screen_ptr))
  84                 return 0;
  85
  86         if (WFLAGP(wwin, no_focusable))
  87                 return 0;
  88
  89         if (!wwin->flags.mapped) {
  90                 if (!wwin->flags.shaded && !wwin->flags.miniaturized && !wwin->flags.hidden)
  91                         return 0;
  92                 else
  93                         return -1;
  94         }
  95
  96         return 1;
  97 }
  98
  99 static void changeImage(WSwitchPanel * panel, int idecks, int selected)
 100 {
 101         WMFrame *icon = WMGetFromArray(panel->icons, idecks);
 102         RImage *image = WMGetFromArray(panel->images, idecks);
 103
 104         if (!panel->bg && !panel->tile) {
 105                 if (!selected)
 106                         WMSetFrameRelief(icon, WRFlat);
 107         }
 108
 109         if (image && icon) {
 110                 RImage *back;
 111                 int opaq = 255;
 112                 RImage *tile;
 113                 WMPoint pos;
 114                 Pixmap p;
 115
 116                 if (canReceiveFocus(WMGetFromArray(panel->windows, idecks)) < 0)
 117                         opaq = 50;
 118
 119                 pos = WMGetViewPosition(WMWidgetView(icon));
 120                 back = panel->tileTmp;
 121                 if (panel->bg)
 122                         RCopyArea(back, panel->bg,
 123                                   BORDER_SPACE + pos.x - panel->firstVisible * ICON_TILE_SIZE,
 124                                   BORDER_SPACE + pos.y, back->width, back->height, 0, 0);
 125                 else {
 126                         RColor color;
 127                         WMScreen *wscr = WMWidgetScreen(icon);
 128                         color.red = 255;
 129                         color.red = WMRedComponentOfColor(WMGrayColor(wscr)) >> 8;
 130                         color.green = WMGreenComponentOfColor(WMGrayColor(wscr)) >> 8;
 131                         color.blue = WMBlueComponentOfColor(WMGrayColor(wscr)) >> 8;
 132                         RFillImage(back, &color);
 133                 }
 134                 if (selected) {
 135                         tile = panel->tile;
 136                         RCombineArea(back, tile, 0, 0, tile->width, tile->height,
 137                                      (back->width - tile->width) / 2, (back->height - tile->height) / 2);
 138                 }
 139                 RCombineAreaWithOpaqueness(back, image, 0, 0, image->width, image->height,
 140                                            (back->width - image->width) / 2, (back->height - image->height) / 2,
 141                                            opaq);
 142
 143                 RConvertImage(panel->scr->rcontext, back, &p);
 144                 XSetWindowBackgroundPixmap(dpy, WMWidgetXID(icon), p);
 145                 XClearWindow(dpy, WMWidgetXID(icon));
 146                 XFreePixmap(dpy, p);
 147         }
 148
 149         if (!panel->bg && !panel->tile) {
 150                 if (selected)
 151                         WMSetFrameRelief(icon, WRSimple);
 152         }
 153 }
 154
 155 static RImage *scaleDownIfNeeded(RImage * image)
 156 {
 157         if (image && ((image->width - ICON_SIZE) > 2 || (image->height - ICON_SIZE) > 2)) {
 158                 RImage *nimage;
 159                 nimage = RScaleImage(image, ICON_SIZE, (image->height * ICON_SIZE / image->width));
 160                 RReleaseImage(image);
 161                 image = nimage;
 162         }
 163         return image;
 164 }
 165
 166 static void addIconForWindow(WSwitchPanel * panel, WMWidget * parent, WWindow * wwin, int x, int y)
 167 {
 168         WMFrame *icon = WMCreateFrame(parent);
 169         RImage *image = NULL;
 170
 171         WMSetFrameRelief(icon, WRFlat);
 172         WMResizeWidget(icon, ICON_TILE_SIZE, ICON_TILE_SIZE);
 173         WMMoveWidget(icon, x, y);
 174
 175         if (!WFLAGP(wwin, always_user_icon) && wwin->net_icon_image)
 176                 image = RRetainImage(wwin->net_icon_image);
 177
 178         // Make this use a caching thing. When there are many windows,
 179         // it's very likely that most of them are instances of the same thing,
 180         // so caching them should get performance acceptable in these cases.
 181         if (!image)
 182                 image = wDefaultGetImage(panel->scr, wwin->wm_instance, wwin->wm_class, ICON_TILE_SIZE);
 183
 184         if (!image && !panel->defIcon) {
 185                 char *file = wDefaultGetIconFile(panel->scr, NULL, NULL, False);
 186                 if (file) {
 187                         char *path = FindImage(wPreferences.icon_path, file);
 188                         if (path) {
 189                                 image = RLoadImage(panel->scr->rcontext, path, 0);
 190                                 wfree(path);
 191                         }
 192                 }
 193                 if (image)
 194                         panel->defIcon = scaleDownIfNeeded(image);
 195                 image = NULL;
 196         }
 197         if (!image && panel->defIcon)
 198                 image = RRetainImage(panel->defIcon);
 199
 200         image = scaleDownIfNeeded(image);
 201
 202         WMAddToArray(panel->images, image);
 203         WMAddToArray(panel->icons, icon);
 204 }
 205
 206 static void scrollIcons(WSwitchPanel * panel, int delta)
 207 {
 208         int nfirst = panel->firstVisible + delta;
 209         int i;
 210         int count = WMGetArrayItemCount(panel->windows);
 211 //    int nx, ox;
 212 //    struct timeval tv1, tv2;
 213
 214         if (count <= panel->visibleCount)
 215                 return;
 216
 217         if (nfirst < 0)
 218                 nfirst = 0;
 219         else if (nfirst >= count - panel->visibleCount)
 220                 nfirst = count - panel->visibleCount;
 221
 222         if (nfirst == panel->firstVisible)
 223                 return;
 224 /*
 225     ox = -panel->firstVisible * ICON_TILE_SIZE;
 226     nx = -nfirst * ICON_TILE_SIZE;
 227     for (i= 0; i < SCROLL_STEPS; i++) {
 228         unsigned int diff;
 229         gettimeofday(&tv1, NULL);
 230         WMMoveWidget(panel->iconBox, (nx*i + ox*(SCROLL_STEPS-i))/(SCROLL_STEPS-1), 0);
 231         XSync(dpy, False);
 232         gettimeofday(&tv2, NULL);
 233         diff = (tv2.tv_sec-tv1.tv_sec)*10000+(tv2.tv_usec-tv1.tv_usec)/100;
 234         if (diff < 200)
 235           wusleep(300-diff);
 236     }
 237  */
 238         WMMoveWidget(panel->iconBox, -nfirst * ICON_TILE_SIZE, 0);
 239
 240         panel->firstVisible = nfirst;
 241
 242         for (i = panel->firstVisible; i < panel->firstVisible + panel->visibleCount; i++) {
 243                 changeImage(panel, i, i == panel->current);
 244         }
 245 }
 246
 247 /*
 248  * 0 1 2
 249  * 3 4 5
 250  * 6 7 8
 251  */
 252 static RImage *assemblePuzzleImage(RImage ** images, int width, int height)
 253 {
 254         RImage *img = RCreateImage(width, height, 1);
 255         RImage *tmp;
 256         int tw, th;
 257         RColor color;
 258         if (!img)
 259                 return NULL;
 260
 261         color.red = 0;
 262         color.green = 0;
 263         color.blue = 0;
 264         color.alpha = 255;
 265
 266         RFillImage(img, &color);
 267
 268         tw = width - images[0]->width - images[2]->width;
 269         th = height - images[0]->height - images[6]->height;
 270
 271         if (tw <= 0 || th <= 0) {
 272                 //XXX
 273                 return NULL;
 274         }
 275
 276         /* top */
 277         if (tw > 0) {
 278                 tmp = RSmoothScaleImage(images[1], tw, images[1]->height);
 279                 RCopyArea(img, tmp, 0, 0, tmp->width, tmp->height, images[0]->width, 0);
 280                 RReleaseImage(tmp);
 281         }
 282         /* bottom */
 283         if (tw > 0) {
 284                 tmp = RSmoothScaleImage(images[7], tw, images[7]->height);
 285                 RCopyArea(img, tmp, 0, 0, tmp->width, tmp->height, images[6]->width, height - images[6]->height);
 286                 RReleaseImage(tmp);
 287         }
 288         /* left */
 289         if (th > 0) {
 290                 tmp = RSmoothScaleImage(images[3], images[3]->width, th);
 291                 RCopyArea(img, tmp, 0, 0, tmp->width, tmp->height, 0, images[0]->height);
 292                 RReleaseImage(tmp);
 293         }
 294         /* right */
 295         if (th > 0) {
 296                 tmp = RSmoothScaleImage(images[5], images[5]->width, th);
 297                 RCopyArea(img, tmp, 0, 0, tmp->width, tmp->height, width - images[5]->width, images[2]->height);
 298                 RReleaseImage(tmp);
 299         }
 300         /* center */
 301         if (tw > 0 && th > 0) {
 302                 tmp = RSmoothScaleImage(images[4], tw, th);
 303                 RCopyArea(img, tmp, 0, 0, tmp->width, tmp->height, images[0]->width, images[0]->height);
 304                 RReleaseImage(tmp);
 305         }
 306
 307         /* corners */
 308         RCopyArea(img, images[0], 0, 0, images[0]->width, images[0]->height, 0, 0);
 309
 310         RCopyArea(img, images[2], 0, 0, images[2]->width, images[2]->height, width - images[2]->width, 0);
 311
 312         RCopyArea(img, images[6], 0, 0, images[6]->width, images[6]->height, 0, height - images[6]->height);
 313
 314         RCopyArea(img, images[8], 0, 0, images[8]->width, images[8]->height,
 315                   width - images[8]->width, height - images[8]->height);
 316
 317         return img;
 318 }
 319
 320 static RImage *createBackImage(int width, int height)
 321 {
 322         return assemblePuzzleImage(wPreferences.swbackImage, width, height);
 323 }
 324
 325 static RImage *getTile(void)
 326 {
 327         RImage *stile;
 328
 329         if (!wPreferences.swtileImage)
 330                 return NULL;
 331
 332         stile = RScaleImage(wPreferences.swtileImage, ICON_TILE_SIZE, ICON_TILE_SIZE);
 333         if (!stile)
 334                 return wPreferences.swtileImage;
 335
 336         return stile;
 337 }
 338
 339 static void drawTitle(WSwitchPanel * panel, int idecks, char *title)
 340 {
 341         char *ntitle;
 342         int width = WMWidgetWidth(panel->win);
 343         int x;
 344
 345         if (title)
 346                 ntitle = ShrinkString(panel->font, title, width - 2 * BORDER_SPACE);
 347         else
 348                 ntitle = NULL;
 349
 350         if (panel->bg) {
 351                 if (ntitle) {
 352                         if (strcmp(ntitle, title) != 0)
 353                                 x = BORDER_SPACE;
 354                         else {
 355                                 int w = WMWidthOfString(panel->font, ntitle, strlen(ntitle));
 356
 357                                 x = BORDER_SPACE + (idecks - panel->firstVisible) * ICON_TILE_SIZE +
 358                                     ICON_TILE_SIZE / 2 - w / 2;
 359                                 if (x < BORDER_SPACE)
 360                                         x = BORDER_SPACE;
 361                                 else if (x + w > width - BORDER_SPACE)
 362                                         x = width - BORDER_SPACE - w;
 363                         }
 364                 }
 365                 XClearWindow(dpy, WMWidgetXID(panel->win));
 366                 if (ntitle)
 367                         WMDrawString(panel->scr->wmscreen,
 368                                      WMWidgetXID(panel->win),
 369                                      panel->white, panel->font,
 370                                      x,
 371                                      WMWidgetHeight(panel->win) - BORDER_SPACE - LABEL_HEIGHT +
 372                                      WMFontHeight(panel->font) / 2, ntitle, strlen(ntitle));
 373         } else {
 374                 if (ntitle)
 375                         WMSetLabelText(panel->label, ntitle);
 376         }
 377         if (ntitle)
 378                 free(ntitle);
 379 }
 380
 381 static WMArray *makeWindowListArray(WWindow *curwin, int include_unmapped, Bool class_only)
 382 {
 383         WMArray *windows = WMCreateArray(10);
 384         int fl;
 385         WWindow *wwin;
 386
 387         for (fl = 0; fl < 2; fl++) {
 388                 for (wwin = curwin; wwin; wwin = wwin->prev) {
 389                         if (((!fl && canReceiveFocus(wwin) > 0) || (fl && canReceiveFocus(wwin) < 0)) &&
 390                             (wwin->flags.mapped || include_unmapped)) {
 391                                 if (class_only) {
 392                                         if (!wwin->wm_class || !curwin->wm_class)
 393                                                 continue;
 394                                         if (strcmp(wwin->wm_class, curwin->wm_class))
 395                                                 continue;
 396                                 }
 397
 398                                 if (!WFLAGP(wwin, skip_switchpanel))
 399                                         WMAddToArray(windows, wwin);
 400                         }
 401                 }
 402                 wwin = curwin;
 403                 /* start over from the beginning of the list */
 404                 while (wwin->next)
 405                         wwin = wwin->next;
 406
 407                 for (wwin = curwin; wwin && wwin != curwin; wwin = wwin->prev) {
 408                         if (((!fl && canReceiveFocus(wwin) > 0) || (fl && canReceiveFocus(wwin) < 0)) &&
 409                             (wwin->flags.mapped || include_unmapped)) {
 410                                 if (class_only) {
 411                                     if (!wwin->wm_class || !curwin->wm_class)
 412                                         continue;
 413                                     if (strcmp(wwin->wm_class, curwin->wm_class))
 414                                         continue;
 415                                 }
 416
 417                                 if (!WFLAGP(wwin, skip_switchpanel))
 418                                 WMAddToArray(windows, wwin);
 419                         }
 420                 }
 421         }
 422
 423         return windows;
 424 }
 425
 426 WSwitchPanel *wInitSwitchPanel(WScreen * scr, WWindow * curwin, Bool class_only)
 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(curwin, wPreferences.swtileImage != NULL, class_only);
 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 = (rect.size.width - SCREEN_BORDER_SPACING) / ICON_TILE_SIZE;
 456                 width = iconsThatFitCount * ICON_TILE_SIZE;
 457         }
 458
 459         panel->visibleCount = iconsThatFitCount;
 460
 461         if (!wPreferences.swtileImage)
 462                 return panel;
 463
 464         height = LABEL_HEIGHT + ICON_TILE_SIZE;
 465
 466         panel->tileTmp = RCreateImage(ICON_TILE_SIZE, ICON_TILE_SIZE, 1);
 467         panel->tile = getTile();
 468         if (panel->tile && wPreferences.swbackImage[8]) {
 469                 panel->bg = createBackImage(width + 2 * BORDER_SPACE, height + 2 * BORDER_SPACE);
 470         }
 471         if (!panel->tileTmp || !panel->tile) {
 472                 if (panel->bg)
 473                         RReleaseImage(panel->bg);
 474                 panel->bg = NULL;
 475                 if (panel->tile)
 476                         RReleaseImage(panel->tile);
 477                 panel->tile = NULL;
 478                 if (panel->tileTmp)
 479                         RReleaseImage(panel->tileTmp);
 480                 panel->tileTmp = NULL;
 481         }
 482
 483         panel->white = WMWhiteColor(scr->wmscreen);
 484         panel->font = WMBoldSystemFontOfSize(scr->wmscreen, 12);
 485         panel->icons = WMCreateArray(count);
 486         panel->images = WMCreateArray(count);
 487
 488         panel->win = WMCreateWindow(scr->wmscreen, "");
 489
 490         if (!panel->bg) {
 491                 WMFrame *frame = WMCreateFrame(panel->win);
 492                 WMColor *darkGray = WMDarkGrayColor(scr->wmscreen);
 493                 WMSetFrameRelief(frame, WRSimple);
 494                 WMSetViewExpandsToParent(WMWidgetView(frame), 0, 0, 0, 0);
 495
 496                 panel->label = WMCreateLabel(panel->win);
 497                 WMResizeWidget(panel->label, width, LABEL_HEIGHT);
 498                 WMMoveWidget(panel->label, BORDER_SPACE, BORDER_SPACE + ICON_TILE_SIZE + 5);
 499                 WMSetLabelRelief(panel->label, WRSimple);
 500                 WMSetWidgetBackgroundColor(panel->label, darkGray);
 501                 WMSetLabelFont(panel->label, panel->font);
 502                 WMSetLabelTextColor(panel->label, panel->white);
 503
 504                 WMReleaseColor(darkGray);
 505                 height += 5;
 506         }
 507
 508         WMResizeWidget(panel->win, width + 2 * BORDER_SPACE, height + 2 * BORDER_SPACE);
 509
 510         viewport = WMCreateFrame(panel->win);
 511         WMResizeWidget(viewport, width, ICON_TILE_SIZE);
 512         WMMoveWidget(viewport, BORDER_SPACE, BORDER_SPACE);
 513         WMSetFrameRelief(viewport, WRFlat);
 514
 515         panel->iconBox = WMCreateFrame(viewport);
 516         WMMoveWidget(panel->iconBox, 0, 0);
 517         WMResizeWidget(panel->iconBox, ICON_TILE_SIZE * count, ICON_TILE_SIZE);
 518         WMSetFrameRelief(panel->iconBox, WRFlat);
 519
 520         WM_ITERATE_ARRAY(panel->windows, wwin, i) {
 521                 addIconForWindow(panel, panel->iconBox, wwin, i * ICON_TILE_SIZE, 0);
 522         }
 523
 524         WMMapSubwidgets(panel->win);
 525         WMRealizeWidget(panel->win);
 526
 527         WM_ITERATE_ARRAY(panel->windows, wwin, i) {
 528                 changeImage(panel, i, 0);
 529         }
 530
 531         if (panel->bg) {
 532                 Pixmap pixmap, mask;
 533
 534                 RConvertImageMask(scr->rcontext, panel->bg, &pixmap, &mask, 250);
 535
 536                 XSetWindowBackgroundPixmap(dpy, WMWidgetXID(panel->win), pixmap);
 537
 538 #ifdef SHAPE
 539                 if (mask && wShapeSupported)
 540                         XShapeCombineMask(dpy, WMWidgetXID(panel->win), ShapeBounding, 0, 0, mask, ShapeSet);
 541 #endif
 542
 543                 if (pixmap)
 544                         XFreePixmap(dpy, pixmap);
 545                 if (mask)
 546                         XFreePixmap(dpy, mask);
 547         }
 548
 549         {
 550                 WMPoint center;
 551                 center = wGetPointToCenterRectInHead(scr, wGetHeadForPointerLocation(scr),
 552                                                      width + 2 * BORDER_SPACE, height + 2 * BORDER_SPACE);
 553                 WMMoveWidget(panel->win, center.x, center.y);
 554         }
 555
 556         panel->current = WMGetFirstInArray(panel->windows, curwin);
 557         if (panel->current >= 0)
 558                 changeImage(panel, panel->current, 1);
 559
 560         WMMapWidget(panel->win);
 561
 562         return panel;
 563 }
 564
 565 void wSwitchPanelDestroy(WSwitchPanel * panel)
 566 {
 567         int i;
 568         RImage *image;
 569
 570         if (panel->win) {
 571                 Window info_win = panel->scr->info_window;
 572                 XEvent ev;
 573                 ev.xclient.type = ClientMessage;
 574                 ev.xclient.message_type = _XA_WM_IGNORE_FOCUS_EVENTS;
 575                 ev.xclient.format = 32;
 576                 ev.xclient.data.l[0] = True;
 577
 578                 XSendEvent(dpy, info_win, True, EnterWindowMask, &ev);
 579                 WMUnmapWidget(panel->win);
 580
 581                 ev.xclient.data.l[0] = False;
 582                 XSendEvent(dpy, info_win, True, EnterWindowMask, &ev);
 583         }
 584
 585         if (panel->images) {
 586                 WM_ITERATE_ARRAY(panel->images, image, i) {
 587                         if (image)
 588                                 RReleaseImage(image);
 589                 }
 590                 WMFreeArray(panel->images);
 591         }
 592         if (panel->win)
 593                 WMDestroyWidget(panel->win);
 594         if (panel->icons)
 595                 WMFreeArray(panel->icons);
 596         WMFreeArray(panel->windows);
 597         if (panel->defIcon)
 598                 RReleaseImage(panel->defIcon);
 599         if (panel->tile)
 600                 RReleaseImage(panel->tile);
 601         if (panel->tileTmp)
 602                 RReleaseImage(panel->tileTmp);
 603         if (panel->bg)
 604                 RReleaseImage(panel->bg);
 605         if (panel->font)
 606                 WMReleaseFont(panel->font);
 607         if (panel->white)
 608                 WMReleaseColor(panel->white);
 609         wfree(panel);
 610 }
 611
 612 WWindow *wSwitchPanelSelectNext(WSwitchPanel * panel, int back)
 613 {
 614         WWindow *wwin;
 615         int count = WMGetArrayItemCount(panel->windows);
 616
 617         if (count == 0)
 618                 return NULL;
 619
 620         if (panel->win)
 621                 changeImage(panel, panel->current, 0);
 622
 623         if (back)
 624                 panel->current--;
 625         else
 626                 panel->current++;
 627
 628         wwin = WMGetFromArray(panel->windows, (count + panel->current) % count);
 629
 630         if (back) {
 631                 if (panel->current < 0)
 632                         scrollIcons(panel, count);
 633                 else if (panel->current < panel->firstVisible)
 634                         scrollIcons(panel, -1);
 635         } else {
 636                 if (panel->current >= count)
 637                         scrollIcons(panel, -count);
 638                 else if (panel->current - panel->firstVisible >= panel->visibleCount)
 639                         scrollIcons(panel, 1);
 640         }
 641
 642         panel->current = (count + panel->current) % count;
 643
 644         if (panel->win) {
 645                 drawTitle(panel, panel->current, wwin->frame->title);
 646
 647                 changeImage(panel, panel->current, 1);
 648         }
 649
 650         return wwin;
 651 }
 652
 653 WWindow *wSwitchPanelSelectFirst(WSwitchPanel * panel, int back)
 654 {
 655         WWindow *wwin;
 656         int count = WMGetArrayItemCount(panel->windows);
 657
 658         if (count == 0)
 659                 return NULL;
 660
 661         if (panel->win)
 662                 changeImage(panel, panel->current, 0);
 663
 664         if (back) {
 665                 panel->current = count - 1;
 666                 scrollIcons(panel, count);
 667         } else {
 668                 panel->current = 0;
 669                 scrollIcons(panel, -count);
 670         }
 671
 672         wwin = WMGetFromArray(panel->windows, panel->current);
 673
 674         if (panel->win) {
 675                 drawTitle(panel, panel->current, wwin->frame->title);
 676
 677                 changeImage(panel, panel->current, 1);
 678         }
 679         return wwin;
 680 }
 681
 682 WWindow *wSwitchPanelHandleEvent(WSwitchPanel * panel, XEvent * event)
 683 {
 684         WMFrame *icon;
 685         int i;
 686         int focus = -1;
 687
 688         if (!panel->win)
 689                 return NULL;
 690
 691         /*   if (event->type == LeaveNotify) {
 692            if (event->xcrossing.window == WMWidgetXID(panel->win))
 693            focus= 0;
 694            } else */ if (event->type == MotionNotify) {
 695
 696                 WM_ITERATE_ARRAY(panel->icons, icon, i) {
 697                         if (WMWidgetXID(icon) == event->xmotion.window) {
 698                                 focus = i;
 699                                 break;
 700                         }
 701                 }
 702         }
 703         if (focus >= 0 && panel->current != focus) {
 704                 WWindow *wwin;
 705
 706                 changeImage(panel, panel->current, 0);
 707                 changeImage(panel, focus, 1);
 708                 panel->current = focus;
 709
 710                 wwin = WMGetFromArray(panel->windows, focus);
 711
 712                 drawTitle(panel, panel->current, wwin->frame->title);
 713
 714                 return wwin;
 715         }
 716
 717         return NULL;
 718 }
 719
 720 Window wSwitchPanelGetWindow(WSwitchPanel * swpanel)
 721 {
 722         if (!swpanel->win)
 723                 return None;
 724         return WMWidgetXID(swpanel->win);
 725 }