src/switchpanel.c

   1 /*
   2  *  Window Maker window manager
   3  *
   4  *  Copyright (c) 1997-2004 Alfredo K. Kojima
   5  *
   6  *  This program is free software; you can redistribute it and/or modify
   7  *  it under the terms of the GNU General Public License as published by
   8  *  the Free Software Foundation; either version 2 of the License, or
   9  *  (at your option) any later version.
  10  *
  11  *  This program is distributed in the hope that it will be useful,
  12  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14  *  GNU General Public License for more details.
  15  *
  16  *  You should have received a copy of the GNU General Public License
  17  *  along with this program; if not, write to the Free Software
  18  *  Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307,
  19  *  USA.
  20  */
  21
  22 #include "wconfig.h"
  23
  24 #include <stdlib.h>
  25 #include <string.h>
  26 #include <sys/time.h>
  27
  28 #include "WindowMaker.h"
  29 #include "screen.h"
  30 #include "wcore.h"
  31 #include "framewin.h"
  32 #include "window.h"
  33 #include "defaults.h"
  34 #include "switchpanel.h"
  35 #include "funcs.h"
  36 #include "xinerama.h"
  37 #include "window.h"
  38
  39 extern Atom _XA_WM_IGNORE_FOCUS_EVENTS;
  40
  41 #ifdef SHAPE
  42 #include <X11/extensions/shape.h>
  43
  44 extern Bool wShapeSupported;
  45 #endif
  46
  47 struct SwitchPanel {
  48         WScreen *scr;
  49         WMWindow *win;
  50         WMFrame *iconBox;
  51
  52         WMArray *icons;
  53         WMArray *images;
  54         WMArray *windows;
  55         RImage *bg;
  56         int current;
  57         int firstVisible;
  58         int visibleCount;
  59
  60         WMLabel *label;
  61
  62         RImage *defIcon;
  63
  64         RImage *tileTmp;
  65         RImage *tile;
  66
  67         WMFont *font;
  68         WMColor *white;
  69 };
  70
  71 extern WPreferences wPreferences;
  72
  73 #define BORDER_SPACE 10
  74 #define ICON_SIZE 48
  75 #define ICON_TILE_SIZE 64
  76 #define LABEL_HEIGHT 25
  77 #define SCREEN_BORDER_SPACING 2*20
  78 #define SCROLL_STEPS (ICON_TILE_SIZE/2)
  79
  80 static int canReceiveFocus(WWindow * wwin)
  81 {
  82         if (wwin->frame->workspace != wwin->screen_ptr->current_workspace)
  83                 return 0;
  84         if (!wwin->flags.mapped) {
  85                 if (!wwin->flags.shaded && !wwin->flags.miniaturized && !wwin->flags.hidden)
  86                         return 0;
  87                 else
  88                         return -1;
  89         }
  90         if (WFLAGP(wwin, no_focusable))
  91                 return 0;
  92         return 1;
  93 }
  94
  95 static void changeImage(WSwitchPanel * panel, int idecks, int selected)
  96 {
  97         WMFrame *icon = WMGetFromArray(panel->icons, idecks);
  98         RImage *image = WMGetFromArray(panel->images, idecks);
  99
 100         if (!panel->bg && !panel->tile) {
 101                 if (!selected)
 102                         WMSetFrameRelief(icon, WRFlat);
 103         }
 104
 105         if (image && icon) {
 106                 RImage *back;
 107                 int opaq = 255;
 108                 RImage *tile;
 109                 WMPoint pos;
 110                 Pixmap p;
 111
 112                 if (canReceiveFocus(WMGetFromArray(panel->windows, idecks)) < 0)
 113                         opaq = 50;
 114
 115                 pos = WMGetViewPosition(WMWidgetView(icon));
 116                 back = panel->tileTmp;
 117                 if (panel->bg)
 118                         RCopyArea(back, panel->bg,
 119                                   BORDER_SPACE + pos.x - panel->firstVisible * ICON_TILE_SIZE,
 120                                   BORDER_SPACE + pos.y, back->width, back->height, 0, 0);
 121                 else {
 122                         RColor color;
 123                         WMScreen *wscr = WMWidgetScreen(icon);
 124                         color.red = 255;
 125                         color.red = WMRedComponentOfColor(WMGrayColor(wscr)) >> 8;
 126                         color.green = WMGreenComponentOfColor(WMGrayColor(wscr)) >> 8;
 127                         color.blue = WMBlueComponentOfColor(WMGrayColor(wscr)) >> 8;
 128                         RFillImage(back, &color);
 129                 }
 130                 if (selected) {
 131                         tile = panel->tile;
 132                         RCombineArea(back, tile, 0, 0, tile->width, tile->height,
 133                                      (back->width - tile->width) / 2, (back->height - tile->height) / 2);
 134                 }
 135                 RCombineAreaWithOpaqueness(back, image, 0, 0, image->width, image->height,
 136                                            (back->width - image->width) / 2, (back->height - image->height) / 2,
 137                                            opaq);
 138
 139                 RConvertImage(panel->scr->rcontext, back, &p);
 140                 XSetWindowBackgroundPixmap(dpy, WMWidgetXID(icon), p);
 141                 XClearWindow(dpy, WMWidgetXID(icon));
 142                 XFreePixmap(dpy, p);
 143         }
 144
 145         if (!panel->bg && !panel->tile) {
 146                 if (selected)
 147                         WMSetFrameRelief(icon, WRSimple);
 148         }
 149 }
 150
 151 static RImage *scaleDownIfNeeded(RImage * image)
 152 {
 153         if (image && ((image->width - ICON_SIZE) > 2 || (image->height - ICON_SIZE) > 2)) {
 154                 RImage *nimage;
 155                 nimage = RScaleImage(image, ICON_SIZE, (image->height * ICON_SIZE / image->width));
 156                 RReleaseImage(image);
 157                 image = nimage;
 158         }
 159         return image;
 160 }
 161
 162 static void addIconForWindow(WSwitchPanel * panel, WMWidget * parent, WWindow * wwin, int x, int y)
 163 {
 164         WMFrame *icon = WMCreateFrame(parent);
 165         RImage *image = NULL;
 166
 167         WMSetFrameRelief(icon, WRFlat);
 168         WMResizeWidget(icon, ICON_TILE_SIZE, ICON_TILE_SIZE);
 169         WMMoveWidget(icon, x, y);
 170
 171         if (!WFLAGP(wwin, always_user_icon) && wwin->net_icon_image)
 172                 image = RRetainImage(wwin->net_icon_image);
 173
 174         // Make this use a caching thing. When there are many windows,
 175         // it's very likely that most of them are instances of the same thing,
 176         // so caching them should get performance acceptable in these cases.
 177         if (!image)
 178                 image = wDefaultGetImage(panel->scr, wwin->wm_instance, wwin->wm_class);
 179
 180         if (!image && !panel->defIcon) {
 181                 char *file = wDefaultGetIconFile(panel->scr, NULL, NULL, False);
 182                 if (file) {
 183                         char *path = FindImage(wPreferences.icon_path, file);
 184                         if (path) {
 185                                 image = RLoadImage(panel->scr->rcontext, path, 0);
 186                                 wfree(path);
 187                         }
 188                 }
 189                 if (image)
 190                         panel->defIcon = scaleDownIfNeeded(image);
 191                 image = NULL;
 192         }
 193         if (!image && panel->defIcon)
 194                 image = RRetainImage(panel->defIcon);
 195
 196         image = scaleDownIfNeeded(image);
 197
 198         WMAddToArray(panel->images, image);
 199         WMAddToArray(panel->icons, icon);
 200 }
 201
 202 static void scrollIcons(WSwitchPanel * panel, int delta)
 203 {
 204         int nfirst = panel->firstVisible + delta;
 205         int i;
 206         int count = WMGetArrayItemCount(panel->windows);
 207 //    int nx, ox;
 208 //    struct timeval tv1, tv2;
 209
 210         if (count <= panel->visibleCount)
 211                 return;
 212
 213         if (nfirst < 0)
 214                 nfirst = 0;
 215         else if (nfirst >= count - panel->visibleCount)
 216                 nfirst = count - panel->visibleCount;
 217
 218         if (nfirst == panel->firstVisible)
 219                 return;
 220 /*
 221     ox = -panel->firstVisible * ICON_TILE_SIZE;
 222     nx = -nfirst * ICON_TILE_SIZE;
 223     for (i= 0; i < SCROLL_STEPS; i++) {
 224         unsigned int diff;
 225         gettimeofday(&tv1, NULL);
 226         WMMoveWidget(panel->iconBox, (nx*i + ox*(SCROLL_STEPS-i))/(SCROLL_STEPS-1), 0);
 227         XSync(dpy, False);
 228         gettimeofday(&tv2, NULL);
 229         diff = (tv2.tv_sec-tv1.tv_sec)*10000+(tv2.tv_usec-tv1.tv_usec)/100;
 230         if (diff < 200)
 231           wusleep(300-diff);
 232     }
 233  */
 234         WMMoveWidget(panel->iconBox, -nfirst * ICON_TILE_SIZE, 0);
 235
 236         panel->firstVisible = nfirst;
 237
 238         for (i = panel->firstVisible; i < panel->firstVisible + panel->visibleCount; i++) {
 239                 changeImage(panel, i, i == panel->current);
 240         }
 241 }
 242
 243 /*
 244  * 0 1 2
 245  * 3 4 5
 246  * 6 7 8
 247  */
 248 static RImage *assemblePuzzleImage(RImage ** images, int width, int height)
 249 {
 250         RImage *img = RCreateImage(width, height, 1);
 251         RImage *tmp;
 252         int tw, th;
 253         RColor color;
 254         if (!img)
 255                 return NULL;
 256
 257         color.red = 0;
 258         color.green = 0;
 259         color.blue = 0;
 260         color.alpha = 255;
 261
 262         RFillImage(img, &color);
 263
 264         tw = width - images[0]->width - images[2]->width;
 265         th = height - images[0]->height - images[6]->height;
 266
 267         if (tw <= 0 || th <= 0) {
 268                 //XXX
 269                 return NULL;
 270         }
 271
 272         /* top */
 273         if (tw > 0) {
 274                 tmp = RSmoothScaleImage(images[1], tw, images[1]->height);
 275                 RCopyArea(img, tmp, 0, 0, tmp->width, tmp->height, images[0]->width, 0);
 276                 RReleaseImage(tmp);
 277         }
 278         /* bottom */
 279         if (tw > 0) {
 280                 tmp = RSmoothScaleImage(images[7], tw, images[7]->height);
 281                 RCopyArea(img, tmp, 0, 0, tmp->width, tmp->height, images[6]->width, height - images[6]->height);
 282                 RReleaseImage(tmp);
 283         }
 284         /* left */
 285         if (th > 0) {
 286                 tmp = RSmoothScaleImage(images[3], images[3]->width, th);
 287                 RCopyArea(img, tmp, 0, 0, tmp->width, tmp->height, 0, images[0]->height);
 288                 RReleaseImage(tmp);
 289         }
 290         /* right */
 291         if (th > 0) {
 292                 tmp = RSmoothScaleImage(images[5], images[5]->width, th);
 293                 RCopyArea(img, tmp, 0, 0, tmp->width, tmp->height, width - images[5]->width, images[2]->height);
 294                 RReleaseImage(tmp);
 295         }
 296         /* center */
 297         if (tw > 0 && th > 0) {
 298                 tmp = RSmoothScaleImage(images[4], tw, th);
 299                 RCopyArea(img, tmp, 0, 0, tmp->width, tmp->height, images[0]->width, images[0]->height);
 300                 RReleaseImage(tmp);
 301         }
 302
 303         /* corners */
 304         RCopyArea(img, images[0], 0, 0, images[0]->width, images[0]->height, 0, 0);
 305
 306         RCopyArea(img, images[2], 0, 0, images[2]->width, images[2]->height, width - images[2]->width, 0);
 307
 308         RCopyArea(img, images[6], 0, 0, images[6]->width, images[6]->height, 0, height - images[6]->height);
 309
 310         RCopyArea(img, images[8], 0, 0, images[8]->width, images[8]->height,
 311                   width - images[8]->width, height - images[8]->height);
 312
 313         return img;
 314 }
 315
 316 static RImage *createBackImage(int width, int height)
 317 {
 318         return assemblePuzzleImage(wPreferences.swbackImage, width, height);
 319 }
 320
 321 static RImage *getTile(void)
 322 {
 323         RImage *stile;
 324
 325         if (!wPreferences.swtileImage)
 326                 return NULL;
 327
 328         stile = RScaleImage(wPreferences.swtileImage, ICON_TILE_SIZE, ICON_TILE_SIZE);
 329         if (!stile)
 330                 return wPreferences.swtileImage;
 331
 332         return stile;
 333 }
 334
 335 static void drawTitle(WSwitchPanel * panel, int idecks, char *title)
 336 {
 337         char *ntitle;
 338         int width = WMWidgetWidth(panel->win);
 339         int x;
 340
 341         if (title)
 342                 ntitle = ShrinkString(panel->font, title, width - 2 * BORDER_SPACE);
 343         else
 344                 ntitle = NULL;
 345
 346         if (panel->bg) {
 347                 if (ntitle) {
 348                         if (strcmp(ntitle, title) != 0)
 349                                 x = BORDER_SPACE;
 350                         else {
 351                                 int w = WMWidthOfString(panel->font, ntitle, strlen(ntitle));
 352
 353                                 x = BORDER_SPACE + (idecks - panel->firstVisible) * ICON_TILE_SIZE +
 354                                     ICON_TILE_SIZE / 2 - w / 2;
 355                                 if (x < BORDER_SPACE)
 356                                         x = BORDER_SPACE;
 357                                 else if (x + w > width - BORDER_SPACE)
 358                                         x = width - BORDER_SPACE - w;
 359                         }
 360                 }
 361                 XClearWindow(dpy, WMWidgetXID(panel->win));
 362                 if (ntitle)
 363                         WMDrawString(panel->scr->wmscreen,
 364                                      WMWidgetXID(panel->win),
 365                                      panel->white, panel->font,
 366                                      x,
 367                                      WMWidgetHeight(panel->win) - BORDER_SPACE - LABEL_HEIGHT +
 368                                      WMFontHeight(panel->font) / 2, ntitle, strlen(ntitle));
 369         } else {
 370                 if (ntitle)
 371                         WMSetLabelText(panel->label, ntitle);
 372         }
 373         if (ntitle)
 374                 free(ntitle);
 375 }
 376
 377 static WMArray *makeWindowListArray(WWindow *curwin, int include_unmapped, Bool class_only)
 378 {
 379         WMArray *windows = WMCreateArray(10);
 380         int fl;
 381         WWindow *wwin;
 382
 383         for (fl = 0; fl < 2; fl++) {
 384                 for (wwin = curwin; wwin; wwin = wwin->prev) {
 385                         if (((!fl && canReceiveFocus(wwin) > 0) || (fl && canReceiveFocus(wwin) < 0)) &&
 386                             (!WFLAGP(wwin, skip_window_list) || wwin->flags.internal_window) &&
 387                             (wwin->flags.mapped || include_unmapped)) {
 388                                 if (class_only) {
 389                                     if (!wwin->wm_class || !curwin->wm_class)
 390                                         continue;
 391                                     if (strcmp(wwin->wm_class, curwin->wm_class))
 392                                         continue;
 393                                 }
 394                                 WMAddToArray(windows, wwin);
 395                         }
 396                 }
 397                 wwin = curwin;
 398                 /* start over from the beginning of the list */
 399                 while (wwin->next)
 400                         wwin = wwin->next;
 401
 402                 for (wwin = curwin; wwin && wwin != curwin; wwin = wwin->prev) {
 403                         if (((!fl && canReceiveFocus(wwin) > 0) || (fl && canReceiveFocus(wwin) < 0)) &&
 404                             (!WFLAGP(wwin, skip_window_list) || wwin->flags.internal_window) &&
 405                             (wwin->flags.mapped || include_unmapped)) {
 406                                 if (class_only) {
 407                                     if (!wwin->wm_class || !curwin->wm_class)
 408                                         continue;
 409                                     if (strcmp(wwin->wm_class, curwin->wm_class))
 410                                         continue;
 411                                 }
 412                                 WMAddToArray(windows, wwin);
 413                         }
 414                 }
 415         }
 416
 417         return windows;
 418 }
 419
 420 WSwitchPanel *wInitSwitchPanel(WScreen * scr, WWindow * curwin, Bool class_only)
 421 {
 422         WWindow *wwin;
 423         WSwitchPanel *panel = wmalloc(sizeof(WSwitchPanel));
 424         WMFrame *viewport;
 425         int i;
 426         int width, height;
 427         int iconsThatFitCount;
 428         int count;
 429         WMRect rect;
 430         rect = wGetRectForHead(scr, wGetHeadForPointerLocation(scr));
 431
 432         memset(panel, 0, sizeof(WSwitchPanel));
 433
 434         panel->scr = scr;
 435
 436         panel->windows = makeWindowListArray(curwin, wPreferences.swtileImage != 0, class_only);
 437         count = WMGetArrayItemCount(panel->windows);
 438
 439         if (count == 0) {
 440                 WMFreeArray(panel->windows);
 441                 wfree(panel);
 442                 return NULL;
 443         }
 444
 445         width = ICON_TILE_SIZE * count;
 446         iconsThatFitCount = count;
 447
 448         if (width > rect.size.width) {
 449                 iconsThatFitCount = (rect.size.width - SCREEN_BORDER_SPACING) / ICON_TILE_SIZE;
 450                 width = iconsThatFitCount * ICON_TILE_SIZE;
 451         }
 452
 453         panel->visibleCount = iconsThatFitCount;
 454
 455         if (!wPreferences.swtileImage)
 456                 return panel;
 457
 458         height = LABEL_HEIGHT + ICON_TILE_SIZE;
 459
 460         panel->tileTmp = RCreateImage(ICON_TILE_SIZE, ICON_TILE_SIZE, 1);
 461         panel->tile = getTile();
 462         if (panel->tile && wPreferences.swbackImage[8]) {
 463                 panel->bg = createBackImage(width + 2 * BORDER_SPACE, height + 2 * BORDER_SPACE);
 464         }
 465         if (!panel->tileTmp || !panel->tile) {
 466                 if (panel->bg)
 467                         RReleaseImage(panel->bg);
 468                 panel->bg = NULL;
 469                 if (panel->tile)
 470                         RReleaseImage(panel->tile);
 471                 panel->tile = NULL;
 472                 if (panel->tileTmp)
 473                         RReleaseImage(panel->tileTmp);
 474                 panel->tileTmp = NULL;
 475         }
 476
 477         panel->white = WMWhiteColor(scr->wmscreen);
 478         panel->font = WMBoldSystemFontOfSize(scr->wmscreen, 12);
 479         panel->icons = WMCreateArray(count);
 480         panel->images = WMCreateArray(count);
 481
 482         panel->win = WMCreateWindow(scr->wmscreen, "");
 483
 484         if (!panel->bg) {
 485                 WMFrame *frame = WMCreateFrame(panel->win);
 486                 WMColor *darkGray = WMDarkGrayColor(scr->wmscreen);
 487                 WMSetFrameRelief(frame, WRSimple);
 488                 WMSetViewExpandsToParent(WMWidgetView(frame), 0, 0, 0, 0);
 489
 490                 panel->label = WMCreateLabel(panel->win);
 491                 WMResizeWidget(panel->label, width, LABEL_HEIGHT);
 492                 WMMoveWidget(panel->label, BORDER_SPACE, BORDER_SPACE + ICON_TILE_SIZE + 5);
 493                 WMSetLabelRelief(panel->label, WRSimple);
 494                 WMSetWidgetBackgroundColor(panel->label, darkGray);
 495                 WMSetLabelFont(panel->label, panel->font);
 496                 WMSetLabelTextColor(panel->label, panel->white);
 497
 498                 WMReleaseColor(darkGray);
 499                 height += 5;
 500         }
 501
 502         WMResizeWidget(panel->win, width + 2 * BORDER_SPACE, height + 2 * BORDER_SPACE);
 503
 504         viewport = WMCreateFrame(panel->win);
 505         WMResizeWidget(viewport, width, ICON_TILE_SIZE);
 506         WMMoveWidget(viewport, BORDER_SPACE, BORDER_SPACE);
 507         WMSetFrameRelief(viewport, WRFlat);
 508
 509         panel->iconBox = WMCreateFrame(viewport);
 510         WMMoveWidget(panel->iconBox, 0, 0);
 511         WMResizeWidget(panel->iconBox, ICON_TILE_SIZE * count, ICON_TILE_SIZE);
 512         WMSetFrameRelief(panel->iconBox, WRFlat);
 513
 514         WM_ITERATE_ARRAY(panel->windows, wwin, i) {
 515                 addIconForWindow(panel, panel->iconBox, wwin, i * ICON_TILE_SIZE, 0);
 516         }
 517
 518         WMMapSubwidgets(panel->win);
 519         WMRealizeWidget(panel->win);
 520
 521         WM_ITERATE_ARRAY(panel->windows, wwin, i) {
 522                 changeImage(panel, i, 0);
 523         }
 524
 525         if (panel->bg) {
 526                 Pixmap pixmap, mask;
 527
 528                 RConvertImageMask(scr->rcontext, panel->bg, &pixmap, &mask, 250);
 529
 530                 XSetWindowBackgroundPixmap(dpy, WMWidgetXID(panel->win), pixmap);
 531
 532 #ifdef SHAPE
 533                 if (mask && wShapeSupported)
 534                         XShapeCombineMask(dpy, WMWidgetXID(panel->win), ShapeBounding, 0, 0, mask, ShapeSet);
 535 #endif
 536
 537                 if (pixmap)
 538                         XFreePixmap(dpy, pixmap);
 539                 if (mask)
 540                         XFreePixmap(dpy, mask);
 541         }
 542
 543         {
 544                 WMPoint center;
 545                 center = wGetPointToCenterRectInHead(scr, wGetHeadForPointerLocation(scr),
 546                                                      width + 2 * BORDER_SPACE, height + 2 * BORDER_SPACE);
 547                 WMMoveWidget(panel->win, center.x, center.y);
 548         }
 549
 550         panel->current = WMGetFirstInArray(panel->windows, curwin);
 551         if (panel->current >= 0)
 552                 changeImage(panel, panel->current, 1);
 553
 554         WMMapWidget(panel->win);
 555
 556         return panel;
 557 }
 558
 559 void wSwitchPanelDestroy(WSwitchPanel * panel)
 560 {
 561         int i;
 562         RImage *image;
 563
 564         if (panel->win) {
 565                 Window info_win = panel->scr->info_window;
 566                 XEvent ev;
 567                 ev.xclient.type = ClientMessage;
 568                 ev.xclient.message_type = _XA_WM_IGNORE_FOCUS_EVENTS;
 569                 ev.xclient.format = 32;
 570                 ev.xclient.data.l[0] = True;
 571
 572                 XSendEvent(dpy, info_win, True, EnterWindowMask, &ev);
 573                 WMUnmapWidget(panel->win);
 574
 575                 ev.xclient.data.l[0] = False;
 576                 XSendEvent(dpy, info_win, True, EnterWindowMask, &ev);
 577         }
 578
 579         if (panel->images) {
 580                 WM_ITERATE_ARRAY(panel->images, image, i) {
 581                         if (image)
 582                                 RReleaseImage(image);
 583                 }
 584                 WMFreeArray(panel->images);
 585         }
 586         if (panel->win)
 587                 WMDestroyWidget(panel->win);
 588         if (panel->icons)
 589                 WMFreeArray(panel->icons);
 590         WMFreeArray(panel->windows);
 591         if (panel->defIcon)
 592                 RReleaseImage(panel->defIcon);
 593         if (panel->tile)
 594                 RReleaseImage(panel->tile);
 595         if (panel->tileTmp)
 596                 RReleaseImage(panel->tileTmp);
 597         if (panel->bg)
 598                 RReleaseImage(panel->bg);
 599         if (panel->font)
 600                 WMReleaseFont(panel->font);
 601         if (panel->white)
 602                 WMReleaseColor(panel->white);
 603         wfree(panel);
 604 }
 605
 606 WWindow *wSwitchPanelSelectNext(WSwitchPanel * panel, int back)
 607 {
 608         WWindow *wwin;
 609         int count = WMGetArrayItemCount(panel->windows);
 610
 611         if (count == 0)
 612                 return NULL;
 613
 614         if (panel->win)
 615                 changeImage(panel, panel->current, 0);
 616
 617         if (back)
 618                 panel->current--;
 619         else
 620                 panel->current++;
 621
 622         wwin = WMGetFromArray(panel->windows, (count + panel->current) % count);
 623
 624         if (back) {
 625                 if (panel->current < 0)
 626                         scrollIcons(panel, count);
 627                 else if (panel->current < panel->firstVisible)
 628                         scrollIcons(panel, -1);
 629         } else {
 630                 if (panel->current >= count)
 631                         scrollIcons(panel, -count);
 632                 else if (panel->current - panel->firstVisible >= panel->visibleCount)
 633                         scrollIcons(panel, 1);
 634         }
 635
 636         panel->current = (count + panel->current) % count;
 637
 638         if (panel->win) {
 639                 drawTitle(panel, panel->current, wwin->frame->title);
 640
 641                 changeImage(panel, panel->current, 1);
 642         }
 643
 644         return wwin;
 645 }
 646
 647 WWindow *wSwitchPanelSelectFirst(WSwitchPanel * panel, int back)
 648 {
 649         WWindow *wwin;
 650         int count = WMGetArrayItemCount(panel->windows);
 651
 652         if (count == 0)
 653                 return NULL;
 654
 655         if (panel->win)
 656                 changeImage(panel, panel->current, 0);
 657
 658         if (back) {
 659                 panel->current = count - 1;
 660                 scrollIcons(panel, count);
 661         } else {
 662                 panel->current = 0;
 663                 scrollIcons(panel, -count);
 664         }
 665
 666         wwin = WMGetFromArray(panel->windows, panel->current);
 667
 668         if (panel->win) {
 669                 drawTitle(panel, panel->current, wwin->frame->title);
 670
 671                 changeImage(panel, panel->current, 1);
 672         }
 673         return wwin;
 674 }
 675
 676 WWindow *wSwitchPanelHandleEvent(WSwitchPanel * panel, XEvent * event)
 677 {
 678         WMFrame *icon;
 679         int i;
 680         int focus = -1;
 681
 682         if (!panel->win)
 683                 return NULL;
 684
 685         /*   if (event->type == LeaveNotify) {
 686            if (event->xcrossing.window == WMWidgetXID(panel->win))
 687            focus= 0;
 688            } else */ if (event->type == MotionNotify) {
 689
 690                 WM_ITERATE_ARRAY(panel->icons, icon, i) {
 691                         if (WMWidgetXID(icon) == event->xmotion.window) {
 692                                 focus = i;
 693                                 break;
 694                         }
 695                 }
 696         }
 697         if (focus >= 0 && panel->current != focus) {
 698                 WWindow *wwin;
 699
 700                 changeImage(panel, panel->current, 0);
 701                 changeImage(panel, focus, 1);
 702                 panel->current = focus;
 703
 704                 wwin = WMGetFromArray(panel->windows, focus);
 705
 706                 drawTitle(panel, panel->current, wwin->frame->title);
 707
 708                 return wwin;
 709         }
 710
 711         return NULL;
 712 }
 713
 714 Window wSwitchPanelGetWindow(WSwitchPanel * swpanel)
 715 {
 716         if (!swpanel->win)
 717                 return None;
 718         return WMWidgetXID(swpanel->win);
 719 }