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 (!wwin->flags.mapped) {
  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 static void changeImage(WSwitchPanel * panel, int idecks, int selected)
  98 {
  99         WMFrame *icon = WMGetFromArray(panel->icons, idecks);
 100         RImage *image = WMGetFromArray(panel->images, idecks);
 101
 102         if (!panel->bg && !panel->tile) {
 103                 if (!selected)
 104                         WMSetFrameRelief(icon, WRFlat);
 105         }
 106
 107         if (image && icon) {
 108                 RImage *back;
 109                 int opaq = 255;
 110                 RImage *tile;
 111                 WMPoint pos;
 112                 Pixmap p;
 113
 114                 if (canReceiveFocus(WMGetFromArray(panel->windows, idecks)) < 0)
 115                         opaq = 50;
 116
 117                 pos = WMGetViewPosition(WMWidgetView(icon));
 118                 back = panel->tileTmp;
 119                 if (panel->bg)
 120                         RCopyArea(back, panel->bg,
 121                                   BORDER_SPACE + pos.x - panel->firstVisible * ICON_TILE_SIZE,
 122                                   BORDER_SPACE + pos.y, back->width, back->height, 0, 0);
 123                 else {
 124                         RColor color;
 125                         WMScreen *wscr = WMWidgetScreen(icon);
 126                         color.red = 255;
 127                         color.red = WMRedComponentOfColor(WMGrayColor(wscr)) >> 8;
 128                         color.green = WMGreenComponentOfColor(WMGrayColor(wscr)) >> 8;
 129                         color.blue = WMBlueComponentOfColor(WMGrayColor(wscr)) >> 8;
 130                         RFillImage(back, &color);
 131                 }
 132                 if (selected) {
 133                         tile = panel->tile;
 134                         RCombineArea(back, tile, 0, 0, tile->width, tile->height,
 135                                      (back->width - tile->width) / 2, (back->height - tile->height) / 2);
 136                 }
 137                 RCombineAreaWithOpaqueness(back, image, 0, 0, image->width, image->height,
 138                                            (back->width - image->width) / 2, (back->height - image->height) / 2,
 139                                            opaq);
 140
 141                 RConvertImage(panel->scr->rcontext, back, &p);
 142                 XSetWindowBackgroundPixmap(dpy, WMWidgetXID(icon), p);
 143                 XClearWindow(dpy, WMWidgetXID(icon));
 144                 XFreePixmap(dpy, p);
 145         }
 146
 147         if (!panel->bg && !panel->tile) {
 148                 if (selected)
 149                         WMSetFrameRelief(icon, WRSimple);
 150         }
 151 }
 152
 153 static RImage *scaleDownIfNeeded(RImage * image)
 154 {
 155         if (image && ((image->width - ICON_SIZE) > 2 || (image->height - ICON_SIZE) > 2)) {
 156                 RImage *nimage;
 157                 nimage = RScaleImage(image, ICON_SIZE, (image->height * ICON_SIZE / image->width));
 158                 RReleaseImage(image);
 159                 image = nimage;
 160         }
 161         return image;
 162 }
 163
 164 static void addIconForWindow(WSwitchPanel * panel, WMWidget * parent, WWindow * wwin, int x, int y)
 165 {
 166         WMFrame *icon = WMCreateFrame(parent);
 167         RImage *image = NULL;
 168
 169         WMSetFrameRelief(icon, WRFlat);
 170         WMResizeWidget(icon, ICON_TILE_SIZE, ICON_TILE_SIZE);
 171         WMMoveWidget(icon, x, y);
 172
 173         if (!WFLAGP(wwin, always_user_icon) && wwin->net_icon_image)
 174                 image = RRetainImage(wwin->net_icon_image);
 175
 176         // Make this use a caching thing. When there are many windows,
 177         // it's very likely that most of them are instances of the same thing,
 178         // so caching them should get performance acceptable in these cases.
 179         if (!image)
 180                 image = wDefaultGetImage(panel->scr, wwin->wm_instance, wwin->wm_class);
 181
 182         if (!image && !panel->defIcon) {
 183                 char *file = wDefaultGetIconFile(panel->scr, NULL, NULL, False);
 184                 if (file) {
 185                         char *path = FindImage(wPreferences.icon_path, file);
 186                         if (path) {
 187                                 image = RLoadImage(panel->scr->rcontext, path, 0);
 188                                 wfree(path);
 189                         }
 190                 }
 191                 if (image)
 192                         panel->defIcon = scaleDownIfNeeded(image);
 193                 image = NULL;
 194         }
 195         if (!image && panel->defIcon)
 196                 image = RRetainImage(panel->defIcon);
 197
 198         image = scaleDownIfNeeded(image);
 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 //    int nx, ox;
 210 //    struct timeval tv1, tv2;
 211
 212         if (count <= panel->visibleCount)
 213                 return;
 214
 215         if (nfirst < 0)
 216                 nfirst = 0;
 217         else if (nfirst >= count - panel->visibleCount)
 218                 nfirst = count - panel->visibleCount;
 219
 220         if (nfirst == panel->firstVisible)
 221                 return;
 222 /*
 223     ox = -panel->firstVisible * ICON_TILE_SIZE;
 224     nx = -nfirst * ICON_TILE_SIZE;
 225     for (i= 0; i < SCROLL_STEPS; i++) {
 226         unsigned int diff;
 227         gettimeofday(&tv1, NULL);
 228         WMMoveWidget(panel->iconBox, (nx*i + ox*(SCROLL_STEPS-i))/(SCROLL_STEPS-1), 0);
 229         XSync(dpy, False);
 230         gettimeofday(&tv2, NULL);
 231         diff = (tv2.tv_sec-tv1.tv_sec)*10000+(tv2.tv_usec-tv1.tv_usec)/100;
 232         if (diff < 200)
 233           wusleep(300-diff);
 234     }
 235  */
 236         WMMoveWidget(panel->iconBox, -nfirst * ICON_TILE_SIZE, 0);
 237
 238         panel->firstVisible = nfirst;
 239
 240         for (i = panel->firstVisible; i < panel->firstVisible + panel->visibleCount; i++) {
 241                 changeImage(panel, i, i == panel->current);
 242         }
 243 }
 244
 245 /*
 246  * 0 1 2
 247  * 3 4 5
 248  * 6 7 8
 249  */
 250 static RImage *assemblePuzzleImage(RImage ** images, int width, int height)
 251 {
 252         RImage *img = RCreateImage(width, height, 1);
 253         RImage *tmp;
 254         int tw, th;
 255         RColor color;
 256         if (!img)
 257                 return NULL;
 258
 259         color.red = 0;
 260         color.green = 0;
 261         color.blue = 0;
 262         color.alpha = 255;
 263
 264         RFillImage(img, &color);
 265
 266         tw = width - images[0]->width - images[2]->width;
 267         th = height - images[0]->height - images[6]->height;
 268
 269         if (tw <= 0 || th <= 0) {
 270                 //XXX
 271                 return NULL;
 272         }
 273
 274         /* top */
 275         if (tw > 0) {
 276                 tmp = RSmoothScaleImage(images[1], tw, images[1]->height);
 277                 RCopyArea(img, tmp, 0, 0, tmp->width, tmp->height, images[0]->width, 0);
 278                 RReleaseImage(tmp);
 279         }
 280         /* bottom */
 281         if (tw > 0) {
 282                 tmp = RSmoothScaleImage(images[7], tw, images[7]->height);
 283                 RCopyArea(img, tmp, 0, 0, tmp->width, tmp->height, images[6]->width, height - images[6]->height);
 284                 RReleaseImage(tmp);
 285         }
 286         /* left */
 287         if (th > 0) {
 288                 tmp = RSmoothScaleImage(images[3], images[3]->width, th);
 289                 RCopyArea(img, tmp, 0, 0, tmp->width, tmp->height, 0, images[0]->height);
 290                 RReleaseImage(tmp);
 291         }
 292         /* right */
 293         if (th > 0) {
 294                 tmp = RSmoothScaleImage(images[5], images[5]->width, th);
 295                 RCopyArea(img, tmp, 0, 0, tmp->width, tmp->height, width - images[5]->width, images[2]->height);
 296                 RReleaseImage(tmp);
 297         }
 298         /* center */
 299         if (tw > 0 && th > 0) {
 300                 tmp = RSmoothScaleImage(images[4], tw, th);
 301                 RCopyArea(img, tmp, 0, 0, tmp->width, tmp->height, images[0]->width, images[0]->height);
 302                 RReleaseImage(tmp);
 303         }
 304
 305         /* corners */
 306         RCopyArea(img, images[0], 0, 0, images[0]->width, images[0]->height, 0, 0);
 307
 308         RCopyArea(img, images[2], 0, 0, images[2]->width, images[2]->height, width - images[2]->width, 0);
 309
 310         RCopyArea(img, images[6], 0, 0, images[6]->width, images[6]->height, 0, height - images[6]->height);
 311
 312         RCopyArea(img, images[8], 0, 0, images[8]->width, images[8]->height,
 313                   width - images[8]->width, height - images[8]->height);
 314
 315         return img;
 316 }
 317
 318 static RImage *createBackImage(int width, int height)
 319 {
 320         return assemblePuzzleImage(wPreferences.swbackImage, width, height);
 321 }
 322
 323 static RImage *getTile(void)
 324 {
 325         RImage *stile;
 326
 327         if (!wPreferences.swtileImage)
 328                 return NULL;
 329
 330         stile = RScaleImage(wPreferences.swtileImage, ICON_TILE_SIZE, ICON_TILE_SIZE);
 331         if (!stile)
 332                 return wPreferences.swtileImage;
 333
 334         return stile;
 335 }
 336
 337 static void drawTitle(WSwitchPanel * panel, int idecks, char *title)
 338 {
 339         char *ntitle;
 340         int width = WMWidgetWidth(panel->win);
 341         int x;
 342
 343         if (title)
 344                 ntitle = ShrinkString(panel->font, title, width - 2 * BORDER_SPACE);
 345         else
 346                 ntitle = NULL;
 347
 348         if (panel->bg) {
 349                 if (ntitle) {
 350                         if (strcmp(ntitle, title) != 0)
 351                                 x = BORDER_SPACE;
 352                         else {
 353                                 int w = WMWidthOfString(panel->font, ntitle, strlen(ntitle));
 354
 355                                 x = BORDER_SPACE + (idecks - panel->firstVisible) * ICON_TILE_SIZE +
 356                                     ICON_TILE_SIZE / 2 - w / 2;
 357                                 if (x < BORDER_SPACE)
 358                                         x = BORDER_SPACE;
 359                                 else if (x + w > width - BORDER_SPACE)
 360                                         x = width - BORDER_SPACE - w;
 361                         }
 362                 }
 363                 XClearWindow(dpy, WMWidgetXID(panel->win));
 364                 if (ntitle)
 365                         WMDrawString(panel->scr->wmscreen,
 366                                      WMWidgetXID(panel->win),
 367                                      panel->white, panel->font,
 368                                      x,
 369                                      WMWidgetHeight(panel->win) - BORDER_SPACE - LABEL_HEIGHT +
 370                                      WMFontHeight(panel->font) / 2, ntitle, strlen(ntitle));
 371         } else {
 372                 if (ntitle)
 373                         WMSetLabelText(panel->label, ntitle);
 374         }
 375         if (ntitle)
 376                 free(ntitle);
 377 }
 378
 379 static WMArray *makeWindowListArray(WWindow *curwin, int include_unmapped, Bool class_only)
 380 {
 381         WMArray *windows = WMCreateArray(10);
 382         int fl;
 383         WWindow *wwin;
 384
 385         for (fl = 0; fl < 2; fl++) {
 386                 for (wwin = curwin; wwin; wwin = wwin->prev) {
 387                         if (((!fl && canReceiveFocus(wwin) > 0) || (fl && canReceiveFocus(wwin) < 0)) &&
 388                             (wwin->flags.mapped || include_unmapped)) {
 389                                 if (class_only) {
 390                                     if (!wwin->wm_class || !curwin->wm_class)
 391                                         continue;
 392                                     if (strcmp(wwin->wm_class, curwin->wm_class))
 393                                         continue;
 394                                 }
 395
 396                                 if (!WFLAGP(wwin, skip_switchpanel))
 397                                 WMAddToArray(windows, wwin);
 398                         }
 399                 }
 400                 wwin = curwin;
 401                 /* start over from the beginning of the list */
 402                 while (wwin->next)
 403                         wwin = wwin->next;
 404
 405                 for (wwin = curwin; wwin && wwin != curwin; wwin = wwin->prev) {
 406                         if (((!fl && canReceiveFocus(wwin) > 0) || (fl && canReceiveFocus(wwin) < 0)) &&
 407                             (wwin->flags.mapped || include_unmapped)) {
 408                                 if (class_only) {
 409                                     if (!wwin->wm_class || !curwin->wm_class)
 410                                         continue;
 411                                     if (strcmp(wwin->wm_class, curwin->wm_class))
 412                                         continue;
 413                                 }
 414
 415                                 if (!WFLAGP(wwin, skip_switchpanel))
 416                                 WMAddToArray(windows, wwin);
 417                         }
 418                 }
 419         }
 420
 421         return windows;
 422 }
 423
 424 WSwitchPanel *wInitSwitchPanel(WScreen * scr, WWindow * curwin, Bool class_only)
 425 {
 426         WWindow *wwin;
 427         WSwitchPanel *panel = wmalloc(sizeof(WSwitchPanel));
 428         WMFrame *viewport;
 429         int i;
 430         int width, height;
 431         int iconsThatFitCount;
 432         int count;
 433         WMRect rect;
 434         rect = wGetRectForHead(scr, wGetHeadForPointerLocation(scr));
 435
 436         memset(panel, 0, sizeof(WSwitchPanel));
 437
 438         panel->scr = scr;
 439
 440         panel->windows = makeWindowListArray(curwin, wPreferences.swtileImage != NULL, class_only);
 441         count = WMGetArrayItemCount(panel->windows);
 442
 443         if (count == 0) {
 444                 WMFreeArray(panel->windows);
 445                 wfree(panel);
 446                 return NULL;
 447         }
 448
 449         width = ICON_TILE_SIZE * count;
 450         iconsThatFitCount = count;
 451
 452         if (width > rect.size.width) {
 453                 iconsThatFitCount = (rect.size.width - SCREEN_BORDER_SPACING) / ICON_TILE_SIZE;
 454                 width = iconsThatFitCount * ICON_TILE_SIZE;
 455         }
 456
 457         panel->visibleCount = iconsThatFitCount;
 458
 459         if (!wPreferences.swtileImage)
 460                 return panel;
 461
 462         height = LABEL_HEIGHT + ICON_TILE_SIZE;
 463
 464         panel->tileTmp = RCreateImage(ICON_TILE_SIZE, ICON_TILE_SIZE, 1);
 465         panel->tile = getTile();
 466         if (panel->tile && wPreferences.swbackImage[8]) {
 467                 panel->bg = createBackImage(width + 2 * BORDER_SPACE, height + 2 * BORDER_SPACE);
 468         }
 469         if (!panel->tileTmp || !panel->tile) {
 470                 if (panel->bg)
 471                         RReleaseImage(panel->bg);
 472                 panel->bg = NULL;
 473                 if (panel->tile)
 474                         RReleaseImage(panel->tile);
 475                 panel->tile = NULL;
 476                 if (panel->tileTmp)
 477                         RReleaseImage(panel->tileTmp);
 478                 panel->tileTmp = NULL;
 479         }
 480
 481         panel->white = WMWhiteColor(scr->wmscreen);
 482         panel->font = WMBoldSystemFontOfSize(scr->wmscreen, 12);
 483         panel->icons = WMCreateArray(count);
 484         panel->images = WMCreateArray(count);
 485
 486         panel->win = WMCreateWindow(scr->wmscreen, "");
 487
 488         if (!panel->bg) {
 489                 WMFrame *frame = WMCreateFrame(panel->win);
 490                 WMColor *darkGray = WMDarkGrayColor(scr->wmscreen);
 491                 WMSetFrameRelief(frame, WRSimple);
 492                 WMSetViewExpandsToParent(WMWidgetView(frame), 0, 0, 0, 0);
 493
 494                 panel->label = WMCreateLabel(panel->win);
 495                 WMResizeWidget(panel->label, width, LABEL_HEIGHT);
 496                 WMMoveWidget(panel->label, BORDER_SPACE, BORDER_SPACE + ICON_TILE_SIZE + 5);
 497                 WMSetLabelRelief(panel->label, WRSimple);
 498                 WMSetWidgetBackgroundColor(panel->label, darkGray);
 499                 WMSetLabelFont(panel->label, panel->font);
 500                 WMSetLabelTextColor(panel->label, panel->white);
 501
 502                 WMReleaseColor(darkGray);
 503                 height += 5;
 504         }
 505
 506         WMResizeWidget(panel->win, width + 2 * BORDER_SPACE, height + 2 * BORDER_SPACE);
 507
 508         viewport = WMCreateFrame(panel->win);
 509         WMResizeWidget(viewport, width, ICON_TILE_SIZE);
 510         WMMoveWidget(viewport, BORDER_SPACE, BORDER_SPACE);
 511         WMSetFrameRelief(viewport, WRFlat);
 512
 513         panel->iconBox = WMCreateFrame(viewport);
 514         WMMoveWidget(panel->iconBox, 0, 0);
 515         WMResizeWidget(panel->iconBox, ICON_TILE_SIZE * count, ICON_TILE_SIZE);
 516         WMSetFrameRelief(panel->iconBox, WRFlat);
 517
 518         WM_ITERATE_ARRAY(panel->windows, wwin, i) {
 519                 addIconForWindow(panel, panel->iconBox, wwin, i * ICON_TILE_SIZE, 0);
 520         }
 521
 522         WMMapSubwidgets(panel->win);
 523         WMRealizeWidget(panel->win);
 524
 525         WM_ITERATE_ARRAY(panel->windows, wwin, i) {
 526                 changeImage(panel, i, 0);
 527         }
 528
 529         if (panel->bg) {
 530                 Pixmap pixmap, mask;
 531
 532                 RConvertImageMask(scr->rcontext, panel->bg, &pixmap, &mask, 250);
 533
 534                 XSetWindowBackgroundPixmap(dpy, WMWidgetXID(panel->win), pixmap);
 535
 536 #ifdef SHAPE
 537                 if (mask && wShapeSupported)
 538                         XShapeCombineMask(dpy, WMWidgetXID(panel->win), ShapeBounding, 0, 0, mask, ShapeSet);
 539 #endif
 540
 541                 if (pixmap)
 542                         XFreePixmap(dpy, pixmap);
 543                 if (mask)
 544                         XFreePixmap(dpy, mask);
 545         }
 546
 547         {
 548                 WMPoint center;
 549                 center = wGetPointToCenterRectInHead(scr, wGetHeadForPointerLocation(scr),
 550                                                      width + 2 * BORDER_SPACE, height + 2 * BORDER_SPACE);
 551                 WMMoveWidget(panel->win, center.x, center.y);
 552         }
 553
 554         panel->current = WMGetFirstInArray(panel->windows, curwin);
 555         if (panel->current >= 0)
 556                 changeImage(panel, panel->current, 1);
 557
 558         WMMapWidget(panel->win);
 559
 560         return panel;
 561 }
 562
 563 void wSwitchPanelDestroy(WSwitchPanel * panel)
 564 {
 565         int i;
 566         RImage *image;
 567
 568         if (panel->win) {
 569                 Window info_win = panel->scr->info_window;
 570                 XEvent ev;
 571                 ev.xclient.type = ClientMessage;
 572                 ev.xclient.message_type = _XA_WM_IGNORE_FOCUS_EVENTS;
 573                 ev.xclient.format = 32;
 574                 ev.xclient.data.l[0] = True;
 575
 576                 XSendEvent(dpy, info_win, True, EnterWindowMask, &ev);
 577                 WMUnmapWidget(panel->win);
 578
 579                 ev.xclient.data.l[0] = False;
 580                 XSendEvent(dpy, info_win, True, EnterWindowMask, &ev);
 581         }
 582
 583         if (panel->images) {
 584                 WM_ITERATE_ARRAY(panel->images, image, i) {
 585                         if (image)
 586                                 RReleaseImage(image);
 587                 }
 588                 WMFreeArray(panel->images);
 589         }
 590         if (panel->win)
 591                 WMDestroyWidget(panel->win);
 592         if (panel->icons)
 593                 WMFreeArray(panel->icons);
 594         WMFreeArray(panel->windows);
 595         if (panel->defIcon)
 596                 RReleaseImage(panel->defIcon);
 597         if (panel->tile)
 598                 RReleaseImage(panel->tile);
 599         if (panel->tileTmp)
 600                 RReleaseImage(panel->tileTmp);
 601         if (panel->bg)
 602                 RReleaseImage(panel->bg);
 603         if (panel->font)
 604                 WMReleaseFont(panel->font);
 605         if (panel->white)
 606                 WMReleaseColor(panel->white);
 607         wfree(panel);
 608 }
 609
 610 WWindow *wSwitchPanelSelectNext(WSwitchPanel * panel, int back)
 611 {
 612         WWindow *wwin;
 613         int count = WMGetArrayItemCount(panel->windows);
 614
 615         if (count == 0)
 616                 return NULL;
 617
 618         if (panel->win)
 619                 changeImage(panel, panel->current, 0);
 620
 621         if (back)
 622                 panel->current--;
 623         else
 624                 panel->current++;
 625
 626         wwin = WMGetFromArray(panel->windows, (count + panel->current) % count);
 627
 628         if (back) {
 629                 if (panel->current < 0)
 630                         scrollIcons(panel, count);
 631                 else if (panel->current < panel->firstVisible)
 632                         scrollIcons(panel, -1);
 633         } else {
 634                 if (panel->current >= count)
 635                         scrollIcons(panel, -count);
 636                 else if (panel->current - panel->firstVisible >= panel->visibleCount)
 637                         scrollIcons(panel, 1);
 638         }
 639
 640         panel->current = (count + panel->current) % count;
 641
 642         if (panel->win) {
 643                 drawTitle(panel, panel->current, wwin->frame->title);
 644
 645                 changeImage(panel, panel->current, 1);
 646         }
 647
 648         return wwin;
 649 }
 650
 651 WWindow *wSwitchPanelSelectFirst(WSwitchPanel * panel, int back)
 652 {
 653         WWindow *wwin;
 654         int count = WMGetArrayItemCount(panel->windows);
 655
 656         if (count == 0)
 657                 return NULL;
 658
 659         if (panel->win)
 660                 changeImage(panel, panel->current, 0);
 661
 662         if (back) {
 663                 panel->current = count - 1;
 664                 scrollIcons(panel, count);
 665         } else {
 666                 panel->current = 0;
 667                 scrollIcons(panel, -count);
 668         }
 669
 670         wwin = WMGetFromArray(panel->windows, panel->current);
 671
 672         if (panel->win) {
 673                 drawTitle(panel, panel->current, wwin->frame->title);
 674
 675                 changeImage(panel, panel->current, 1);
 676         }
 677         return wwin;
 678 }
 679
 680 WWindow *wSwitchPanelHandleEvent(WSwitchPanel * panel, XEvent * event)
 681 {
 682         WMFrame *icon;
 683         int i;
 684         int focus = -1;
 685
 686         if (!panel->win)
 687                 return NULL;
 688
 689         /*   if (event->type == LeaveNotify) {
 690            if (event->xcrossing.window == WMWidgetXID(panel->win))
 691            focus= 0;
 692            } else */ if (event->type == MotionNotify) {
 693
 694                 WM_ITERATE_ARRAY(panel->icons, icon, i) {
 695                         if (WMWidgetXID(icon) == event->xmotion.window) {
 696                                 focus = i;
 697                                 break;
 698                         }
 699                 }
 700         }
 701         if (focus >= 0 && panel->current != focus) {
 702                 WWindow *wwin;
 703
 704                 changeImage(panel, panel->current, 0);
 705                 changeImage(panel, focus, 1);
 706                 panel->current = focus;
 707
 708                 wwin = WMGetFromArray(panel->windows, focus);
 709
 710                 drawTitle(panel, panel->current, wwin->frame->title);
 711
 712                 return wwin;
 713         }
 714
 715         return NULL;
 716 }
 717
 718 Window wSwitchPanelGetWindow(WSwitchPanel * swpanel)
 719 {
 720         if (!swpanel->win)
 721                 return None;
 722         return WMWidgetXID(swpanel->win);
 723 }