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 "framewin.h"
  31 #include "window.h"
  32 #include "defaults.h"
  33 #include "switchpanel.h"
  34 #include "funcs.h"
  35 #include "xinerama.h"
  36 #include "window.h"
  37
  38 extern Atom _XA_WM_IGNORE_FOCUS_EVENTS;
  39
  40 #ifdef SHAPE
  41 #include <X11/extensions/shape.h>
  42
  43 extern Bool wShapeSupported;
  44 #endif
  45
  46 struct SwitchPanel {
  47         WScreen *scr;
  48         WMWindow *win;
  49         WMFrame *iconBox;
  50
  51         WMArray *icons;
  52         WMArray *images;
  53         WMArray *windows;
  54         RImage *bg;
  55         int current;
  56         int firstVisible;
  57         int visibleCount;
  58
  59         WMLabel *label;
  60
  61         RImage *defIcon;
  62
  63         RImage *tileTmp;
  64         RImage *tile;
  65
  66         WMFont *font;
  67         WMColor *white;
  68 };
  69
  70 extern WPreferences wPreferences;
  71
  72 #define BORDER_SPACE 10
  73 #define ICON_SIZE 48
  74 #define ICON_TILE_SIZE 64
  75 #define LABEL_HEIGHT 25
  76 #define SCREEN_BORDER_SPACING 2*20
  77 #define SCROLL_STEPS (ICON_TILE_SIZE/2)
  78
  79 static int canReceiveFocus(WWindow * wwin)
  80 {
  81         if (wwin->frame->workspace != wwin->screen_ptr->current_workspace)
  82                 return 0;
  83         if (!wwin->flags.mapped) {
  84                 if (!wwin->flags.shaded && !wwin->flags.miniaturized && !wwin->flags.hidden)
  85                         return 0;
  86                 else
  87                         return -1;
  88         }
  89         if (WFLAGP(wwin, no_focusable))
  90                 return 0;
  91         return 1;
  92 }
  93
  94 static void changeImage(WSwitchPanel * panel, int idecks, int selected)
  95 {
  96         WMFrame *icon = WMGetFromArray(panel->icons, idecks);
  97         RImage *image = WMGetFromArray(panel->images, idecks);
  98
  99         if (!panel->bg && !panel->tile) {
 100                 if (!selected)
 101                         WMSetFrameRelief(icon, WRFlat);
 102         }
 103
 104         if (image && icon) {
 105                 RImage *back;
 106                 int opaq = 255;
 107                 RImage *tile;
 108                 WMPoint pos;
 109                 Pixmap p;
 110
 111                 if (canReceiveFocus(WMGetFromArray(panel->windows, idecks)) < 0)
 112                         opaq = 50;
 113
 114                 pos = WMGetViewPosition(WMWidgetView(icon));
 115                 back = panel->tileTmp;
 116                 if (panel->bg)
 117                         RCopyArea(back, panel->bg,
 118                                   BORDER_SPACE + pos.x - panel->firstVisible * ICON_TILE_SIZE,
 119                                   BORDER_SPACE + pos.y, back->width, back->height, 0, 0);
 120                 else {
 121                         RColor color;
 122                         WMScreen *wscr = WMWidgetScreen(icon);
 123                         color.red = 255;
 124                         color.red = WMRedComponentOfColor(WMGrayColor(wscr)) >> 8;
 125                         color.green = WMGreenComponentOfColor(WMGrayColor(wscr)) >> 8;
 126                         color.blue = WMBlueComponentOfColor(WMGrayColor(wscr)) >> 8;
 127                         RFillImage(back, &color);
 128                 }
 129                 if (selected) {
 130                         tile = panel->tile;
 131                         RCombineArea(back, tile, 0, 0, tile->width, tile->height,
 132                                      (back->width - tile->width) / 2, (back->height - tile->height) / 2);
 133                 }
 134                 RCombineAreaWithOpaqueness(back, image, 0, 0, image->width, image->height,
 135                                            (back->width - image->width) / 2, (back->height - image->height) / 2,
 136                                            opaq);
 137
 138                 RConvertImage(panel->scr->rcontext, back, &p);
 139                 XSetWindowBackgroundPixmap(dpy, WMWidgetXID(icon), p);
 140                 XClearWindow(dpy, WMWidgetXID(icon));
 141                 XFreePixmap(dpy, p);
 142         }
 143
 144         if (!panel->bg && !panel->tile) {
 145                 if (selected)
 146                         WMSetFrameRelief(icon, WRSimple);
 147         }
 148 }
 149
 150 static RImage *scaleDownIfNeeded(RImage * image)
 151 {
 152         if (image && ((image->width - ICON_SIZE) > 2 || (image->height - ICON_SIZE) > 2)) {
 153                 RImage *nimage;
 154                 nimage = RScaleImage(image, ICON_SIZE, (image->height * ICON_SIZE / image->width));
 155                 RReleaseImage(image);
 156                 image = nimage;
 157         }
 158         return image;
 159 }
 160
 161 static void addIconForWindow(WSwitchPanel * panel, WMWidget * parent, WWindow * wwin, int x, int y)
 162 {
 163         WMFrame *icon = WMCreateFrame(parent);
 164         RImage *image = NULL;
 165
 166         WMSetFrameRelief(icon, WRFlat);
 167         WMResizeWidget(icon, ICON_TILE_SIZE, ICON_TILE_SIZE);
 168         WMMoveWidget(icon, x, y);
 169
 170         if (!WFLAGP(wwin, always_user_icon) && wwin->net_icon_image)
 171                 image = RRetainImage(wwin->net_icon_image);
 172
 173         // Make this use a caching thing. When there are many windows,
 174         // it's very likely that most of them are instances of the same thing,
 175         // so caching them should get performance acceptable in these cases.
 176         if (!image)
 177                 image = wDefaultGetImage(panel->scr, wwin->wm_instance, wwin->wm_class);
 178
 179         if (!image && !panel->defIcon) {
 180                 char *file = wDefaultGetIconFile(panel->scr, NULL, NULL, False);
 181                 if (file) {
 182                         char *path = FindImage(wPreferences.icon_path, file);
 183                         if (path) {
 184                                 image = RLoadImage(panel->scr->rcontext, path, 0);
 185                                 wfree(path);
 186                         }
 187                 }
 188                 if (image)
 189                         panel->defIcon = scaleDownIfNeeded(image);
 190                 image = NULL;
 191         }
 192         if (!image && panel->defIcon)
 193                 image = RRetainImage(panel->defIcon);
 194
 195         image = scaleDownIfNeeded(image);
 196
 197         WMAddToArray(panel->images, image);
 198         WMAddToArray(panel->icons, icon);
 199 }
 200
 201 static void scrollIcons(WSwitchPanel * panel, int delta)
 202 {
 203         int nfirst = panel->firstVisible + delta;
 204         int i;
 205         int count = WMGetArrayItemCount(panel->windows);
 206 //    int nx, ox;
 207 //    struct timeval tv1, tv2;
 208
 209         if (count <= panel->visibleCount)
 210                 return;
 211
 212         if (nfirst < 0)
 213                 nfirst = 0;
 214         else if (nfirst >= count - panel->visibleCount)
 215                 nfirst = count - panel->visibleCount;
 216
 217         if (nfirst == panel->firstVisible)
 218                 return;
 219 /*
 220     ox = -panel->firstVisible * ICON_TILE_SIZE;
 221     nx = -nfirst * ICON_TILE_SIZE;
 222     for (i= 0; i < SCROLL_STEPS; i++) {
 223         unsigned int diff;
 224         gettimeofday(&tv1, NULL);
 225         WMMoveWidget(panel->iconBox, (nx*i + ox*(SCROLL_STEPS-i))/(SCROLL_STEPS-1), 0);
 226         XSync(dpy, False);
 227         gettimeofday(&tv2, NULL);
 228         diff = (tv2.tv_sec-tv1.tv_sec)*10000+(tv2.tv_usec-tv1.tv_usec)/100;
 229         if (diff < 200)
 230           wusleep(300-diff);
 231     }
 232  */
 233         WMMoveWidget(panel->iconBox, -nfirst * ICON_TILE_SIZE, 0);
 234
 235         panel->firstVisible = nfirst;
 236
 237         for (i = panel->firstVisible; i < panel->firstVisible + panel->visibleCount; i++) {
 238                 changeImage(panel, i, i == panel->current);
 239         }
 240 }
 241
 242 /*
 243  * 0 1 2
 244  * 3 4 5
 245  * 6 7 8
 246  */
 247 static RImage *assemblePuzzleImage(RImage ** images, int width, int height)
 248 {
 249         RImage *img = RCreateImage(width, height, 1);
 250         RImage *tmp;
 251         int tw, th;
 252         RColor color;
 253         if (!img)
 254                 return NULL;
 255
 256         color.red = 0;
 257         color.green = 0;
 258         color.blue = 0;
 259         color.alpha = 255;
 260
 261         RFillImage(img, &color);
 262
 263         tw = width - images[0]->width - images[2]->width;
 264         th = height - images[0]->height - images[6]->height;
 265
 266         if (tw <= 0 || th <= 0) {
 267                 //XXX
 268                 return NULL;
 269         }
 270
 271         /* top */
 272         if (tw > 0) {
 273                 tmp = RSmoothScaleImage(images[1], tw, images[1]->height);
 274                 RCopyArea(img, tmp, 0, 0, tmp->width, tmp->height, images[0]->width, 0);
 275                 RReleaseImage(tmp);
 276         }
 277         /* bottom */
 278         if (tw > 0) {
 279                 tmp = RSmoothScaleImage(images[7], tw, images[7]->height);
 280                 RCopyArea(img, tmp, 0, 0, tmp->width, tmp->height, images[6]->width, height - images[6]->height);
 281                 RReleaseImage(tmp);
 282         }
 283         /* left */
 284         if (th > 0) {
 285                 tmp = RSmoothScaleImage(images[3], images[3]->width, th);
 286                 RCopyArea(img, tmp, 0, 0, tmp->width, tmp->height, 0, images[0]->height);
 287                 RReleaseImage(tmp);
 288         }
 289         /* right */
 290         if (th > 0) {
 291                 tmp = RSmoothScaleImage(images[5], images[5]->width, th);
 292                 RCopyArea(img, tmp, 0, 0, tmp->width, tmp->height, width - images[5]->width, images[2]->height);
 293                 RReleaseImage(tmp);
 294         }
 295         /* center */
 296         if (tw > 0 && th > 0) {
 297                 tmp = RSmoothScaleImage(images[4], tw, th);
 298                 RCopyArea(img, tmp, 0, 0, tmp->width, tmp->height, images[0]->width, images[0]->height);
 299                 RReleaseImage(tmp);
 300         }
 301
 302         /* corners */
 303         RCopyArea(img, images[0], 0, 0, images[0]->width, images[0]->height, 0, 0);
 304
 305         RCopyArea(img, images[2], 0, 0, images[2]->width, images[2]->height, width - images[2]->width, 0);
 306
 307         RCopyArea(img, images[6], 0, 0, images[6]->width, images[6]->height, 0, height - images[6]->height);
 308
 309         RCopyArea(img, images[8], 0, 0, images[8]->width, images[8]->height,
 310                   width - images[8]->width, height - images[8]->height);
 311
 312         return img;
 313 }
 314
 315 static RImage *createBackImage(int width, int height)
 316 {
 317         return assemblePuzzleImage(wPreferences.swbackImage, width, height);
 318 }
 319
 320 static RImage *getTile(void)
 321 {
 322         RImage *stile;
 323
 324         if (!wPreferences.swtileImage)
 325                 return NULL;
 326
 327         stile = RScaleImage(wPreferences.swtileImage, ICON_TILE_SIZE, ICON_TILE_SIZE);
 328         if (!stile)
 329                 return wPreferences.swtileImage;
 330
 331         return stile;
 332 }
 333
 334 static void drawTitle(WSwitchPanel * panel, int idecks, char *title)
 335 {
 336         char *ntitle;
 337         int width = WMWidgetWidth(panel->win);
 338         int x;
 339
 340         if (title)
 341                 ntitle = ShrinkString(panel->font, title, width - 2 * BORDER_SPACE);
 342         else
 343                 ntitle = NULL;
 344
 345         if (panel->bg) {
 346                 if (ntitle) {
 347                         if (strcmp(ntitle, title) != 0)
 348                                 x = BORDER_SPACE;
 349                         else {
 350                                 int w = WMWidthOfString(panel->font, ntitle, strlen(ntitle));
 351
 352                                 x = BORDER_SPACE + (idecks - panel->firstVisible) * ICON_TILE_SIZE +
 353                                     ICON_TILE_SIZE / 2 - w / 2;
 354                                 if (x < BORDER_SPACE)
 355                                         x = BORDER_SPACE;
 356                                 else if (x + w > width - BORDER_SPACE)
 357                                         x = width - BORDER_SPACE - w;
 358                         }
 359                 }
 360                 XClearWindow(dpy, WMWidgetXID(panel->win));
 361                 if (ntitle)
 362                         WMDrawString(panel->scr->wmscreen,
 363                                      WMWidgetXID(panel->win),
 364                                      panel->white, panel->font,
 365                                      x,
 366                                      WMWidgetHeight(panel->win) - BORDER_SPACE - LABEL_HEIGHT +
 367                                      WMFontHeight(panel->font) / 2, ntitle, strlen(ntitle));
 368         } else {
 369                 if (ntitle)
 370                         WMSetLabelText(panel->label, ntitle);
 371         }
 372         if (ntitle)
 373                 free(ntitle);
 374 }
 375
 376 static WMArray *makeWindowListArray(WWindow *curwin, int include_unmapped, Bool class_only)
 377 {
 378         WMArray *windows = WMCreateArray(10);
 379         int fl;
 380         WWindow *wwin;
 381
 382         for (fl = 0; fl < 2; fl++) {
 383                 for (wwin = curwin; wwin; wwin = wwin->prev) {
 384                         if (((!fl && canReceiveFocus(wwin) > 0) || (fl && canReceiveFocus(wwin) < 0)) &&
 385                             (!WFLAGP(wwin, skip_window_list) || wwin->flags.internal_window) &&
 386                             (wwin->flags.mapped || include_unmapped)) {
 387                                 if (class_only) {
 388                                     if (!wwin->wm_class || !curwin->wm_class)
 389                                         continue;
 390                                     if (strcmp(wwin->wm_class, curwin->wm_class))
 391                                         continue;
 392                                 }
 393                                 WMAddToArray(windows, wwin);
 394                         }
 395                 }
 396                 wwin = curwin;
 397                 /* start over from the beginning of the list */
 398                 while (wwin->next)
 399                         wwin = wwin->next;
 400
 401                 for (wwin = curwin; wwin && wwin != curwin; wwin = wwin->prev) {
 402                         if (((!fl && canReceiveFocus(wwin) > 0) || (fl && canReceiveFocus(wwin) < 0)) &&
 403                             (!WFLAGP(wwin, skip_window_list) || wwin->flags.internal_window) &&
 404                             (wwin->flags.mapped || include_unmapped)) {
 405                                 if (class_only) {
 406                                     if (!wwin->wm_class || !curwin->wm_class)
 407                                         continue;
 408                                     if (strcmp(wwin->wm_class, curwin->wm_class))
 409                                         continue;
 410                                 }
 411                                 WMAddToArray(windows, wwin);
 412                         }
 413                 }
 414         }
 415
 416         return windows;
 417 }
 418
 419 WSwitchPanel *wInitSwitchPanel(WScreen * scr, WWindow * curwin, Bool class_only)
 420 {
 421         WWindow *wwin;
 422         WSwitchPanel *panel = wmalloc(sizeof(WSwitchPanel));
 423         WMFrame *viewport;
 424         int i;
 425         int width, height;
 426         int iconsThatFitCount;
 427         int count;
 428         WMRect rect;
 429         rect = wGetRectForHead(scr, wGetHeadForPointerLocation(scr));
 430
 431         memset(panel, 0, sizeof(WSwitchPanel));
 432
 433         panel->scr = scr;
 434
 435         panel->windows = makeWindowListArray(curwin, wPreferences.swtileImage != 0, class_only);
 436         count = WMGetArrayItemCount(panel->windows);
 437
 438         if (count == 0) {
 439                 WMFreeArray(panel->windows);
 440                 wfree(panel);
 441                 return NULL;
 442         }
 443
 444         width = ICON_TILE_SIZE * count;
 445         iconsThatFitCount = count;
 446
 447         if (width > rect.size.width) {
 448                 iconsThatFitCount = (rect.size.width - SCREEN_BORDER_SPACING) / ICON_TILE_SIZE;
 449                 width = iconsThatFitCount * ICON_TILE_SIZE;
 450         }
 451
 452         panel->visibleCount = iconsThatFitCount;
 453
 454         if (!wPreferences.swtileImage)
 455                 return panel;
 456
 457         height = LABEL_HEIGHT + ICON_TILE_SIZE;
 458
 459         panel->tileTmp = RCreateImage(ICON_TILE_SIZE, ICON_TILE_SIZE, 1);
 460         panel->tile = getTile();
 461         if (panel->tile && wPreferences.swbackImage[8]) {
 462                 panel->bg = createBackImage(width + 2 * BORDER_SPACE, height + 2 * BORDER_SPACE);
 463         }
 464         if (!panel->tileTmp || !panel->tile) {
 465                 if (panel->bg)
 466                         RReleaseImage(panel->bg);
 467                 panel->bg = NULL;
 468                 if (panel->tile)
 469                         RReleaseImage(panel->tile);
 470                 panel->tile = NULL;
 471                 if (panel->tileTmp)
 472                         RReleaseImage(panel->tileTmp);
 473                 panel->tileTmp = NULL;
 474         }
 475
 476         panel->white = WMWhiteColor(scr->wmscreen);
 477         panel->font = WMBoldSystemFontOfSize(scr->wmscreen, 12);
 478         panel->icons = WMCreateArray(count);
 479         panel->images = WMCreateArray(count);
 480
 481         panel->win = WMCreateWindow(scr->wmscreen, "");
 482
 483         if (!panel->bg) {
 484                 WMFrame *frame = WMCreateFrame(panel->win);
 485                 WMColor *darkGray = WMDarkGrayColor(scr->wmscreen);
 486                 WMSetFrameRelief(frame, WRSimple);
 487                 WMSetViewExpandsToParent(WMWidgetView(frame), 0, 0, 0, 0);
 488
 489                 panel->label = WMCreateLabel(panel->win);
 490                 WMResizeWidget(panel->label, width, LABEL_HEIGHT);
 491                 WMMoveWidget(panel->label, BORDER_SPACE, BORDER_SPACE + ICON_TILE_SIZE + 5);
 492                 WMSetLabelRelief(panel->label, WRSimple);
 493                 WMSetWidgetBackgroundColor(panel->label, darkGray);
 494                 WMSetLabelFont(panel->label, panel->font);
 495                 WMSetLabelTextColor(panel->label, panel->white);
 496
 497                 WMReleaseColor(darkGray);
 498                 height += 5;
 499         }
 500
 501         WMResizeWidget(panel->win, width + 2 * BORDER_SPACE, height + 2 * BORDER_SPACE);
 502
 503         viewport = WMCreateFrame(panel->win);
 504         WMResizeWidget(viewport, width, ICON_TILE_SIZE);
 505         WMMoveWidget(viewport, BORDER_SPACE, BORDER_SPACE);
 506         WMSetFrameRelief(viewport, WRFlat);
 507
 508         panel->iconBox = WMCreateFrame(viewport);
 509         WMMoveWidget(panel->iconBox, 0, 0);
 510         WMResizeWidget(panel->iconBox, ICON_TILE_SIZE * count, ICON_TILE_SIZE);
 511         WMSetFrameRelief(panel->iconBox, WRFlat);
 512
 513         WM_ITERATE_ARRAY(panel->windows, wwin, i) {
 514                 addIconForWindow(panel, panel->iconBox, wwin, i * ICON_TILE_SIZE, 0);
 515         }
 516
 517         WMMapSubwidgets(panel->win);
 518         WMRealizeWidget(panel->win);
 519
 520         WM_ITERATE_ARRAY(panel->windows, wwin, i) {
 521                 changeImage(panel, i, 0);
 522         }
 523
 524         if (panel->bg) {
 525                 Pixmap pixmap, mask;
 526
 527                 RConvertImageMask(scr->rcontext, panel->bg, &pixmap, &mask, 250);
 528
 529                 XSetWindowBackgroundPixmap(dpy, WMWidgetXID(panel->win), pixmap);
 530
 531 #ifdef SHAPE
 532                 if (mask && wShapeSupported)
 533                         XShapeCombineMask(dpy, WMWidgetXID(panel->win), ShapeBounding, 0, 0, mask, ShapeSet);
 534 #endif
 535
 536                 if (pixmap)
 537                         XFreePixmap(dpy, pixmap);
 538                 if (mask)
 539                         XFreePixmap(dpy, mask);
 540         }
 541
 542         {
 543                 WMPoint center;
 544                 center = wGetPointToCenterRectInHead(scr, wGetHeadForPointerLocation(scr),
 545                                                      width + 2 * BORDER_SPACE, height + 2 * BORDER_SPACE);
 546                 WMMoveWidget(panel->win, center.x, center.y);
 547         }
 548
 549         panel->current = WMGetFirstInArray(panel->windows, curwin);
 550         if (panel->current >= 0)
 551                 changeImage(panel, panel->current, 1);
 552
 553         WMMapWidget(panel->win);
 554
 555         return panel;
 556 }
 557
 558 void wSwitchPanelDestroy(WSwitchPanel * panel)
 559 {
 560         int i;
 561         RImage *image;
 562
 563         if (panel->win) {
 564                 Window info_win = panel->scr->info_window;
 565                 XEvent ev;
 566                 ev.xclient.type = ClientMessage;
 567                 ev.xclient.message_type = _XA_WM_IGNORE_FOCUS_EVENTS;
 568                 ev.xclient.format = 32;
 569                 ev.xclient.data.l[0] = True;
 570
 571                 XSendEvent(dpy, info_win, True, EnterWindowMask, &ev);
 572                 WMUnmapWidget(panel->win);
 573
 574                 ev.xclient.data.l[0] = False;
 575                 XSendEvent(dpy, info_win, True, EnterWindowMask, &ev);
 576         }
 577
 578         if (panel->images) {
 579                 WM_ITERATE_ARRAY(panel->images, image, i) {
 580                         if (image)
 581                                 RReleaseImage(image);
 582                 }
 583                 WMFreeArray(panel->images);
 584         }
 585         if (panel->win)
 586                 WMDestroyWidget(panel->win);
 587         if (panel->icons)
 588                 WMFreeArray(panel->icons);
 589         WMFreeArray(panel->windows);
 590         if (panel->defIcon)
 591                 RReleaseImage(panel->defIcon);
 592         if (panel->tile)
 593                 RReleaseImage(panel->tile);
 594         if (panel->tileTmp)
 595                 RReleaseImage(panel->tileTmp);
 596         if (panel->bg)
 597                 RReleaseImage(panel->bg);
 598         if (panel->font)
 599                 WMReleaseFont(panel->font);
 600         if (panel->white)
 601                 WMReleaseColor(panel->white);
 602         wfree(panel);
 603 }
 604
 605 WWindow *wSwitchPanelSelectNext(WSwitchPanel * panel, int back)
 606 {
 607         WWindow *wwin;
 608         int count = WMGetArrayItemCount(panel->windows);
 609
 610         if (count == 0)
 611                 return NULL;
 612
 613         if (panel->win)
 614                 changeImage(panel, panel->current, 0);
 615
 616         if (back)
 617                 panel->current--;
 618         else
 619                 panel->current++;
 620
 621         wwin = WMGetFromArray(panel->windows, (count + panel->current) % count);
 622
 623         if (back) {
 624                 if (panel->current < 0)
 625                         scrollIcons(panel, count);
 626                 else if (panel->current < panel->firstVisible)
 627                         scrollIcons(panel, -1);
 628         } else {
 629                 if (panel->current >= count)
 630                         scrollIcons(panel, -count);
 631                 else if (panel->current - panel->firstVisible >= panel->visibleCount)
 632                         scrollIcons(panel, 1);
 633         }
 634
 635         panel->current = (count + panel->current) % count;
 636
 637         if (panel->win) {
 638                 drawTitle(panel, panel->current, wwin->frame->title);
 639
 640                 changeImage(panel, panel->current, 1);
 641         }
 642
 643         return wwin;
 644 }
 645
 646 WWindow *wSwitchPanelSelectFirst(WSwitchPanel * panel, int back)
 647 {
 648         WWindow *wwin;
 649         int count = WMGetArrayItemCount(panel->windows);
 650
 651         if (count == 0)
 652                 return NULL;
 653
 654         if (panel->win)
 655                 changeImage(panel, panel->current, 0);
 656
 657         if (back) {
 658                 panel->current = count - 1;
 659                 scrollIcons(panel, count);
 660         } else {
 661                 panel->current = 0;
 662                 scrollIcons(panel, -count);
 663         }
 664
 665         wwin = WMGetFromArray(panel->windows, panel->current);
 666
 667         if (panel->win) {
 668                 drawTitle(panel, panel->current, wwin->frame->title);
 669
 670                 changeImage(panel, panel->current, 1);
 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 == LeaveNotify) {
 685            if (event->xcrossing.window == WMWidgetXID(panel->win))
 686            focus= 0;
 687            } else */ if (event->type == MotionNotify) {
 688
 689                 WM_ITERATE_ARRAY(panel->icons, icon, i) {
 690                         if (WMWidgetXID(icon) == event->xmotion.window) {
 691                                 focus = i;
 692                                 break;
 693                         }
 694                 }
 695         }
 696         if (focus >= 0 && panel->current != focus) {
 697                 WWindow *wwin;
 698
 699                 changeImage(panel, panel->current, 0);
 700                 changeImage(panel, focus, 1);
 701                 panel->current = focus;
 702
 703                 wwin = WMGetFromArray(panel->windows, focus);
 704
 705                 drawTitle(panel, panel->current, wwin->frame->title);
 706
 707                 return wwin;
 708         }
 709
 710         return NULL;
 711 }
 712
 713 Window wSwitchPanelGetWindow(WSwitchPanel * swpanel)
 714 {
 715         if (!swpanel->win)
 716                 return None;
 717         return WMWidgetXID(swpanel->win);
 718 }