src/superfluous.c

   1 /*
   2  *  Window Maker window manager
   3  *
   4  *  Copyright (c) 1997-2003 Alfredo K. Kojima
   5  *  Copyright (c) 1998-2003 Dan Pascu
   6  *
   7  *  This program is free software; you can redistribute it and/or modify
   8  *  it under the terms of the GNU General Public License as published by
   9  *  the Free Software Foundation; either version 2 of the License, or
  10  *  (at your option) any later version.
  11  *
  12  *  This program is distributed in the hope that it will be useful,
  13  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15  *  GNU General Public License for more details.
  16  *
  17  *  You should have received a copy of the GNU General Public License
  18  *  along with this program; if not, write to the Free Software
  19  *  Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307,
  20  *  USA.
  21  */
  22
  23 #include "wconfig.h"
  24
  25 #include <X11/Xlib.h>
  26 #include <X11/Xutil.h>
  27
  28 #include <stdlib.h>
  29 #include <unistd.h>
  30 #include <math.h>
  31 #include <time.h>
  32
  33 #include <wraster.h>
  34
  35 #include "WindowMaker.h"
  36 #include "screen.h"
  37 #include "superfluous.h"
  38 #include "dock.h"
  39 #include "wcore.h"
  40 #include "framewin.h"
  41 #include "window.h"
  42 #include "icon.h"
  43 #include "appicon.h"
  44
  45
  46 extern WPreferences wPreferences;
  47
  48
  49 #ifdef SPEAKER_SOUND
  50 static void
  51 play(Display *dpy, int pitch, int delay)
  52 {
  53     XKeyboardControl kc;
  54
  55     kc.bell_pitch = pitch;
  56     kc.bell_percent = 50;
  57     kc.bell_duration = delay;
  58     XChangeKeyboardControl(dpy, KBBellPitch|KBBellDuration|KBBellPercent,&kc);
  59     XBell(dpy, 50);
  60     XFlush(dpy);
  61     wusleep(delay);
  62 }
  63 #endif
  64
  65
  66
  67 #ifdef DEMATERIALIZE_ICON
  68 void
  69 DoKaboom(WScreen *scr, Window win, int x, int y)
  70 {
  71     RImage *icon;
  72     RImage *back;
  73     RImage *image;
  74     Pixmap pixmap;
  75     XImage *ximage;
  76     GC gc;
  77     XGCValues gcv;
  78     int i;
  79     int w, h;
  80     int run;
  81     XEvent event;
  82
  83     h = w = wPreferences.icon_size;
  84     if (x < 0 || x + w > scr->scr_width || y < 0 || y + h > scr->scr_height)
  85         return;
  86
  87     icon = RCreateImageFromDrawable(scr->rcontext, win, None);
  88     if (!icon)
  89         return;
  90
  91     gcv.foreground = scr->white_pixel;
  92     gcv.background = scr->black_pixel;
  93     gcv.graphics_exposures = False;
  94     gcv.subwindow_mode = IncludeInferiors;
  95     gc = XCreateGC(dpy, scr->w_win, GCForeground|GCBackground|GCSubwindowMode
  96                    |GCGraphicsExposures, &gcv);
  97
  98
  99     XGrabServer(dpy);
 100     RConvertImage(scr->rcontext, icon, &pixmap);
 101     XUnmapWindow(dpy, win);
 102
 103     ximage = XGetImage(dpy, scr->root_win, x, y, w, h, AllPlanes, ZPixmap);
 104     XCopyArea(dpy, pixmap, scr->root_win, gc, 0, 0, w, h, x, y);
 105     XFreePixmap(dpy,pixmap);
 106
 107     back = RCreateImageFromXImage(scr->rcontext, ximage, NULL);
 108     XDestroyImage(ximage);
 109     if (!back) {
 110         RReleaseImage(icon);
 111         return;
 112     }
 113
 114
 115     for (i=0,run=0; i<DEMATERIALIZE_STEPS; i++) {
 116         XEvent foo;
 117         if (!run && XCheckTypedEvent(dpy, ButtonPress, &foo)) {
 118             run=1;
 119             XPutBackEvent(dpy, &foo);
 120         }
 121         image = RCloneImage(back);
 122         RCombineImagesWithOpaqueness(image, icon,
 123                                      (DEMATERIALIZE_STEPS-1-i)*256/(DEMATERIALIZE_STEPS+2));
 124         RConvertImage(scr->rcontext, image, &pixmap);
 125         XCopyArea(dpy, pixmap, scr->root_win, gc, 0, 0, w, h, x, y);
 126         XFreePixmap(dpy, pixmap);
 127         XFlush(dpy);
 128         if(!run) wusleep(1000);
 129     }
 130
 131     while (XCheckTypedEvent(dpy, MotionNotify, &event)) {
 132     }
 133     XFlush(dpy);
 134
 135     XUngrabServer(dpy);
 136     XFreeGC(dpy, gc);
 137     RReleaseImage(icon);
 138     RReleaseImage(back);
 139 }
 140 #endif /* DEMATERIALIZE_ICON */
 141
 142
 143
 144
 145
 146
 147 #ifdef NORMAL_ICON_KABOOM
 148 void
 149 DoKaboom(WScreen *scr, Window win, int x, int y)
 150 {
 151     int i, j, k;
 152     int sw=scr->scr_width, sh=scr->scr_height;
 153 #define KAB_PRECISION   4
 154     int px[PIECES];
 155     short py[PIECES];
 156 #ifdef ICON_KABOOM_EXTRA
 157     short ptx[2][PIECES], pty[2][PIECES];
 158     int ll;
 159 #endif
 160     char pvx[PIECES], pvy[PIECES];
 161     /* in MkLinux/PPC gcc seems to think that char is unsigned? */
 162     signed char ax[PIECES], ay[PIECES];
 163     Pixmap tmp;
 164
 165     XSetClipMask(dpy, scr->copy_gc, None);
 166     tmp = XCreatePixmap(dpy, scr->root_win, wPreferences.icon_size,
 167                         wPreferences.icon_size, scr->depth);
 168     if (scr->w_visual == DefaultVisual(dpy, scr->screen))
 169         XCopyArea(dpy, win, tmp, scr->copy_gc, 0, 0, wPreferences.icon_size,
 170                   wPreferences.icon_size, 0, 0);
 171     else {
 172         XImage *image;
 173
 174         image = XGetImage(dpy, win, 0, 0, wPreferences.icon_size,
 175                           wPreferences.icon_size, AllPlanes, ZPixmap);
 176         if (!image) {
 177             XUnmapWindow(dpy, win);
 178             return;
 179         }
 180         XPutImage(dpy, tmp, scr->copy_gc, image, 0, 0, 0, 0,
 181                   wPreferences.icon_size, wPreferences.icon_size);
 182         XDestroyImage(image);
 183     }
 184
 185     for (i=0,k=0; i<wPreferences.icon_size/ICON_KABOOM_PIECE_SIZE && k<PIECES;
 186          i++) {
 187         for (j=0; j<wPreferences.icon_size/ICON_KABOOM_PIECE_SIZE && k<PIECES;
 188              j++) {
 189             if (rand()%2) {
 190                 ax[k]=i;
 191                 ay[k]=j;
 192                 px[k]=(x+i*ICON_KABOOM_PIECE_SIZE)<<KAB_PRECISION;
 193                 py[k]=y+j*ICON_KABOOM_PIECE_SIZE;
 194                 pvx[k]=rand()%(1<<(KAB_PRECISION+3))-(1<<(KAB_PRECISION+3))/2;
 195                 pvy[k]=-15-rand()%7;
 196 #ifdef ICON_KABOOM_EXTRA
 197                 for (ll=0; ll<2; ll++) {
 198                     ptx[ll][k] = px[k];
 199                     pty[ll][k] = py[k];
 200                 }
 201 #endif
 202                 k++;
 203             } else {
 204                 ax[k]=-1;
 205             }
 206         }
 207     }
 208
 209     XUnmapWindow(dpy, win);
 210
 211     j=k;
 212     while (k>0) {
 213         XEvent foo;
 214
 215         if (XCheckTypedEvent(dpy, ButtonPress, &foo)) {
 216             XPutBackEvent(dpy, &foo);
 217             XClearWindow(dpy, scr->root_win);
 218             break;
 219         }
 220
 221         for (i=0; i<j ; i++) {
 222             if (ax[i]>=0) {
 223                 int _px = px[i]>>KAB_PRECISION;
 224 #ifdef ICON_KABOOM_EXTRA
 225                 XClearArea(dpy, scr->root_win, ptx[1][i], pty[1][i],
 226                            ICON_KABOOM_PIECE_SIZE, ICON_KABOOM_PIECE_SIZE,
 227                            False);
 228
 229                 ptx[1][i] = ptx[0][i];
 230                 pty[1][i] = pty[0][i];
 231                 ptx[0][i] = _px;
 232                 pty[0][i] = py[i];
 233 #else
 234                 XClearArea(dpy, scr->root_win, _px, py[i],
 235                            ICON_KABOOM_PIECE_SIZE, ICON_KABOOM_PIECE_SIZE,
 236                            False);
 237 #endif
 238                 px[i]+=pvx[i];
 239                 py[i]+=pvy[i];
 240                 _px = px[i]>>KAB_PRECISION;
 241                 pvy[i]++;
 242                 if (_px<-wPreferences.icon_size || _px>sw || py[i]>=sh) {
 243 #ifdef ICON_KABOOM_EXTRA
 244                     if (py[i]>sh && _px<sw && _px>0) {
 245                         pvy[i] = -(pvy[i]/2);
 246                         if (abs(pvy[i]) > 3) {
 247                             py[i] = sh-ICON_KABOOM_PIECE_SIZE;
 248                             XCopyArea(dpy, tmp, scr->root_win, scr->copy_gc,
 249                                       ax[i]*ICON_KABOOM_PIECE_SIZE,
 250                                       ay[i]*ICON_KABOOM_PIECE_SIZE,
 251                                       ICON_KABOOM_PIECE_SIZE,
 252                                       ICON_KABOOM_PIECE_SIZE,
 253                                       _px, py[i]);
 254                         } else {
 255                             ax[i] = -1;
 256                         }
 257                     } else {
 258                         ax[i] = -1;
 259                     }
 260                     if (ax[i]<0) {
 261                         for (ll=0; ll<2; ll++)
 262                             XClearArea(dpy, scr->root_win, ptx[ll][i], pty[ll][i],
 263                                        ICON_KABOOM_PIECE_SIZE,
 264                                        ICON_KABOOM_PIECE_SIZE, False);
 265                         k--;
 266                     }
 267 #else /* !ICON_KABOOM_EXTRA */
 268                     ax[i]=-1;
 269                     k--;
 270 #endif /* !ICON_KABOOM_EXTRA */
 271                 } else {
 272                     XCopyArea(dpy, tmp, scr->root_win, scr->copy_gc,
 273                               ax[i]*ICON_KABOOM_PIECE_SIZE, ay[i]*ICON_KABOOM_PIECE_SIZE,
 274                               ICON_KABOOM_PIECE_SIZE, ICON_KABOOM_PIECE_SIZE,
 275                               _px, py[i]);
 276                 }
 277             }
 278         }
 279
 280         XFlush(dpy);
 281 #ifdef SPEAKER_SOUND
 282         play(dpy, 100+rand()%250, 12);
 283 #else
 284 # if (MINIATURIZE_ANIMATION_DELAY_Z > 0)
 285         wusleep(MINIATURIZE_ANIMATION_DELAY_Z*2);
 286 # endif
 287 #endif
 288     }
 289
 290     XFreePixmap(dpy, tmp);
 291 }
 292 #endif /* NORMAL_ICON_KABOOM */
 293
 294
 295 Pixmap
 296 MakeGhostDock(WDock *dock, int sx, int dx, int y)
 297 {
 298     WScreen *scr = dock->screen_ptr;
 299     XImage *img;
 300     RImage *back, *dock_image;
 301     Pixmap pixmap;
 302     int i, virtual_tiles, h, j, n;
 303     unsigned long red_mask, green_mask, blue_mask;
 304
 305     virtual_tiles = 0;
 306     for (i=0; i<dock->max_icons; i++) {
 307         if (dock->icon_array[i]!=NULL &&
 308             dock->icon_array[i]->yindex > virtual_tiles)
 309             virtual_tiles = dock->icon_array[i]->yindex;
 310     }
 311     virtual_tiles++;
 312     h = virtual_tiles * wPreferences.icon_size;
 313     h = (y + h > scr->scr_height) ? scr->scr_height-y : h;
 314     virtual_tiles = h / wPreferences.icon_size; /* The visible ones */
 315     if (h % wPreferences.icon_size)
 316         virtual_tiles++;  /* There is one partially visible tile at end */
 317
 318     img=XGetImage(dpy, scr->root_win, dx, y, wPreferences.icon_size, h,
 319                   AllPlanes, ZPixmap);
 320     if (!img)
 321         return None;
 322
 323     red_mask = img->red_mask;
 324     green_mask = img->green_mask;
 325     blue_mask = img->blue_mask;
 326
 327     back = RCreateImageFromXImage(scr->rcontext, img, NULL);
 328     XDestroyImage(img);
 329     if (!back) {
 330         return None;
 331     }
 332
 333     for (i=0;i<dock->max_icons;i++) {
 334         if (dock->icon_array[i]!=NULL &&
 335             dock->icon_array[i]->yindex < virtual_tiles) {
 336             Pixmap which;
 337             j = dock->icon_array[i]->yindex * wPreferences.icon_size;
 338             n = (h - j < wPreferences.icon_size) ? h - j :
 339                 wPreferences.icon_size;
 340             if (dock->icon_array[i]->icon->pixmap)
 341                 which = dock->icon_array[i]->icon->pixmap;
 342             else
 343                 which = dock->icon_array[i]->icon->core->window;
 344
 345             img=XGetImage(dpy, which, 0, 0, wPreferences.icon_size, n,
 346                           AllPlanes, ZPixmap);
 347
 348             if (!img){
 349                 RReleaseImage(back);
 350                 return None;
 351             }
 352             img->red_mask = red_mask;
 353             img->green_mask = green_mask;
 354             img->blue_mask = blue_mask;
 355
 356             dock_image = RCreateImageFromXImage(scr->rcontext, img, NULL);
 357             XDestroyImage(img);
 358             if (!dock_image) {
 359                 RReleaseImage(back);
 360                 return None;
 361             }
 362             RCombineAreaWithOpaqueness(back, dock_image, 0, 0,
 363                                        wPreferences.icon_size, n,
 364                                        0, j, 30 * 256 / 100);
 365             RReleaseImage(dock_image);
 366         }
 367     }
 368
 369
 370     RConvertImage(scr->rcontext, back, &pixmap);
 371
 372     RReleaseImage(back);
 373
 374     return pixmap;
 375 }
 376
 377
 378 Pixmap
 379 MakeGhostIcon(WScreen *scr, Drawable drawable)
 380 {
 381     RImage *back;
 382     RColor color;
 383     Pixmap pixmap;
 384
 385
 386     if (!drawable)
 387         return None;
 388
 389     back = RCreateImageFromDrawable(scr->rcontext, drawable, None);
 390     if (!back)
 391         return None;
 392
 393     color.red = 0xff;
 394     color.green = 0xff;
 395     color.blue = 0xff;
 396     color.alpha = 200;
 397
 398     RClearImage(back, &color);
 399     RConvertImage(scr->rcontext, back, &pixmap);
 400
 401     RReleaseImage(back);
 402
 403     return pixmap;
 404 }
 405
 406
 407
 408 #ifdef WINDOW_BIRTH_ZOOM
 409 void
 410 DoWindowBirth(WWindow *wwin)
 411 {
 412     int width = wwin->frame->core->width;
 413     int height = wwin->frame->core->height;
 414     int w = WMIN(width, 20);
 415     int h = WMIN(height, 20);
 416     int x, y;
 417     int dw, dh;
 418     int i;
 419     time_t time0 = time(NULL);
 420
 421     dw = (width-w)/WINDOW_BIRTH_STEPS;
 422     dh = (height-h)/WINDOW_BIRTH_STEPS;
 423
 424     x = wwin->frame_x + (width-w)/2;
 425     y = wwin->frame_y + (height-h)/2;
 426
 427     XMoveResizeWindow(dpy, wwin->frame->core->window, x, y, w, h);
 428
 429     XMapWindow(dpy, wwin->frame->core->window);
 430
 431     XFlush(dpy);
 432     for (i=0; i<WINDOW_BIRTH_STEPS; i++) {
 433         x -= dw/2 + dw%2;
 434         y -= dh/2 + dh%2;
 435         w += dw;
 436         h += dh;
 437         XMoveResizeWindow(dpy, wwin->frame->core->window, x, y, w, h);
 438         XFlush(dpy);
 439         /* a timeout */
 440         if (time(NULL)-time0 > MAX_ANIMATION_TIME)
 441             break;
 442     }
 443
 444     XMoveResizeWindow(dpy, wwin->frame->core->window,
 445                       wwin->frame_x, wwin->frame_y, width, height);
 446     XFlush(dpy);
 447 }
 448 #else
 449 #ifdef WINDOW_BIRTH_ZOOM2
 450 extern void animateResize();
 451
 452 void DoWindowBirth(WWindow *wwin)
 453 {
 454     /* dummy stub */
 455
 456     int center_x, center_y;
 457     int width = wwin->frame->core->width;
 458     int height = wwin->frame->core->height;
 459     int w = WMIN(width, 20);
 460     int h = WMIN(height, 20);
 461     WScreen *scr = wwin->screen_ptr;
 462
 463     center_x = wwin->frame_x + (width - w) / 2;
 464     center_y = wwin->frame_y + (height - h) / 2;
 465
 466     animateResize(scr, center_x, center_y, 1, 1,
 467                   wwin->frame_x , wwin->frame_y, width, height,
 468                   0);
 469 }
 470 #else
 471 void
 472 DoWindowBirth(WWindow *wwin)
 473 {
 474     /* dummy stub */
 475 }
 476 #endif
 477 #endif
 478
 479
 480
 481
 482
 483
 484 #ifdef SILLYNESS
 485 static WMPixmap *data[12];
 486
 487 static Bool
 488 loadData(WScreen *scr)
 489 {
 490     FILE *f;
 491     int i;
 492     RImage *image;
 493     Pixmap d[12];
 494
 495     f = fopen(PKGDATADIR"/xtree.dat", "rb");
 496     if (!f)
 497         return False;
 498
 499     image = RCreateImage(50, 50, False);
 500     if (!image) {
 501         fclose(f);
 502         return False;
 503     }
 504
 505     for (i = 0; i < 12; i++) {
 506         if (fread(image->data, 50*50*3, 1, f)!=1) {
 507             goto error;
 508         }
 509         if (!RConvertImage(scr->rcontext, image, &(d[i]))) {
 510             goto error;
 511         }
 512     }
 513     RReleaseImage(image);
 514
 515     fclose(f);
 516
 517     for (i=0; i<12; i++) {
 518         data[i] = WMCreatePixmapFromXPixmaps(scr->wmscreen, d[i], None, 50, 50,
 519                                              scr->w_depth);
 520     }
 521
 522     return True;
 523
 524 error:
 525     RReleaseImage(image);
 526
 527     fclose(f);
 528
 529     while (--i > 0) {
 530         XFreePixmap(dpy, d[i]);
 531     }
 532
 533     return False;
 534 }
 535
 536
 537 WMPixmap*
 538 DoXThing(WWindow *wwin)
 539 {
 540     static int order = 0;
 541
 542     order++;
 543
 544     return data[order % 12];
 545 }
 546
 547
 548 Bool
 549 InitXThing(WScreen *scr)
 550 {
 551     time_t t;
 552     struct tm *l;
 553     static int i = 0;
 554
 555     if (i)
 556         return True;
 557
 558     t = time(NULL);
 559     l = localtime(&t);
 560     if ((l->tm_mon!=11||l->tm_mday<24||l->tm_mday>26)) {
 561         return False;
 562     }
 563
 564     if (!loadData(scr))
 565         return False;
 566
 567     i = 1;
 568
 569     return True;
 570 }
 571
 572 #endif /* SILLYNESS */
 573
 574
 575 #ifdef GHOST_WINDOW_MOVE
 576
 577 typedef struct {
 578     WScreen *scr;
 579
 580     int width, height;
 581
 582     int iniX, iniY;
 583     int boxX, boxY;
 584
 585     Window window;
 586
 587     RXImage *winImage;
 588
 589     RXImage *backImage;
 590
 591     /* the combined image */
 592     RXImage *image;
 593     Pixmap pixmap;
 594
 595 } _GhostWindowData;
 596
 597
 598
 599 _GhostWindowData*
 600 InitGhostWindowMove(WWindow *wwin)
 601 {
 602     _GhostWindowData *gdata;
 603     WScreen *scr = wwin->screen_ptr;
 604     unsigned short *ptr;
 605     unsigned short mask;
 606     int i;
 607
 608     gdata = wmalloc(sizeof(_GhostWindowData));
 609
 610     gdata->width = wwin->frame->core->width;
 611     gdata->height = wwin->frame->core->height;
 612
 613     gdata->iniX = wwin->frame_x;
 614     gdata->iniY = wwin->frame_y;
 615
 616     gdata->boxX = wwin->frame_x;
 617     gdata->boxY = wwin->frame_y;
 618
 619     gdata->window =
 620         XCreateSimpleWindow(dpy, scr->root_win, wwin->frame_x, wwin->frame_y,
 621                             gdata->width, gdata->height, 0, 0, 0);
 622
 623     gdata->winImage = RGetXImage(scr->rcontext, wwin->frame->core->window,
 624                                  0, 0, gdata->width, gdata->height);
 625
 626     gdata->backImage = RCreateXImage(scr->rcontext, scr->w_depth,
 627                                      gdata->width, gdata->height);
 628
 629     memcpy(gdata->backImage->image->data, gdata->winImage->image->data,
 630            gdata->winImage->image->bytes_per_line * gdata->height);
 631
 632     gdata->image = RCreateXImage(scr->rcontext, scr->w_depth,
 633                                  gdata->width, gdata->height);
 634
 635     ptr = (unsigned short*)gdata->winImage->image->data;
 636
 637     mask = 0x7b00|0x3d0|0x1e;
 638
 639     for (i = 0;
 640          i < gdata->winImage->image->bytes_per_line * gdata->height;
 641          i++, ptr++) {
 642
 643         *ptr &= mask;
 644     }
 645
 646     return gdata;
 647 }
 648
 649
 650 static void
 651 mergeGhostWindow(_GhostWindowData *gdata)
 652 {
 653     register unsigned short *ptrw, *ptrb, *ptr;
 654     int count;
 655     int i;
 656
 657     ptr = (unsigned short*)gdata->image->image->data;
 658     ptrw = (unsigned short*)gdata->winImage->image->data;
 659     ptrb = (unsigned short*)gdata->backImage->image->data;
 660
 661     count = gdata->winImage->image->bytes_per_line * gdata->height;
 662
 663     while (count--) {
 664         *ptr = (*ptrw + *ptrb) >> 1;
 665
 666         ptr++;
 667         ptrw++;
 668         ptrb++;
 669     }
 670 }
 671
 672
 673 void
 674 UpdateGhostWindowMove(void *data, int x, int y)
 675 {
 676     _GhostWindowData *gdata = (_GhostWindowData*)data;
 677     WScreen *scr = gdata->scr;
 678
 679     /* no intersection of new background with current */
 680     if (x + gdata->width <= gdata->boxX
 681         || x >= gdata->boxX + gdata->width
 682         || y + gdata->height <= gdata->boxY
 683         || y >= gdata->boxY + gdata->height) {
 684         int i;
 685
 686         RDestroyXImage(gdata->backImage);
 687
 688         gdata->backImage = RGetXImage(scr->rcontext, scr->root_win, x, y,
 689                                       gdata->width, gdata->height);
 690
 691         ptr = (unsigned short*)gdata->backImage->image->data;
 692
 693         mask = 0x7b00|0x3d0|0x1e;
 694
 695         for (i = 0;
 696              i < gdata->winImage->image->bytes_per_line * gdata->height;
 697              i++, ptr++) {
 698
 699             *ptr &= mask;
 700         }
 701     } else {
 702         int hx, hw, hy, hh;
 703         int vx, vw, vy, vh;
 704         int i, j;
 705         unsigned char *backP = gdata->backImage->image->data;
 706         unsigned char *winP = gdata->winImage->image->data;
 707         int backLineLen = gdata->backImage->image->bytes_per_line;
 708         int winLineLen = gdata->winImage->image->bytes_per_line;
 709
 710         /* 1st move the area of the current backImage that overlaps
 711          * the new backImage to it's new position */
 712
 713         if (x < gdata->boxX) {
 714             vx = x + gdata->width;
 715             vw = gdata->width - vx;
 716         } else if (x > gdata->boxX) {
 717             vw = gdata->boxX + gdata->width - x;
 718             vx = gdata->boxX - vw;
 719         } else {
 720             vx = 0;
 721             vw = gdata->width;
 722         }
 723
 724         if (y < gdata->boxY) {
 725             vy = y + gdata->height;
 726             vh = gdata->height - vy;
 727         } else if (y > gdata->boxY) {
 728             vh = gdata->boxY + gdata->height - y;
 729             vy = gdata->boxY - vh;
 730         } else {
 731             vy = 0;
 732             vh = gdata->height;
 733         }
 734
 735         if (y < gdata->boxY) {
 736             int dy = vy - gdata->boxY;
 737
 738             if (x < gdata->boxX) {
 739                 for (i = vh - 1; i >= 0; i--) {
 740                     memmove(&backP[(i + dy) * backLineLen + 2 * vx],
 741                             &backP[i * backLineLen], 2 * vw);
 742                 }
 743             } else /* if (x > gdata->boxX) */ {
 744                 for (i = vh - 1; i >= 0; i--) {
 745                     memmove(&backP[(i + dy) * backLineLen],
 746                             &backP[i * backLineLen + 2 * vx], 2 * vw);
 747                 }
 748             }
 749         } else /*if (y > gdata->boxY) */ {
 750             int dy = gdata->boxY - vy;
 751
 752             if (x < gdata->boxX) {
 753                 for (i = 0; i < vh - 1; i++) {
 754                     memmove(&backP[i * backLineLen + 2 * vx],
 755                             &backP[(i + dy) * backLineLen], 2 * vw);
 756                 }
 757             } else /*if (x > gdata->boxX) */ {
 758                 for (i = 0; i < vh - 1; i++) {
 759                     memmove(&backP[i * backLineLen],
 760                             &backP[(i + dy) * backLineLen + 2 * vx], 2 * vw);
 761                 }
 762             }
 763         }
 764
 765         /* 2nd grab the background image from the screen and copy to the
 766          * buffer. also maskout the lsb of rgb in each pixel of grabbed data */
 767
 768         if (y < gdata->boxY) {
 769             vy = y;
 770             vh = gdata->boxY - vy;
 771
 772             hy = y + vh;
 773             hh = gdata->height - vh;
 774         } else if (y > gdata->boxY) {
 775             vy = gdata->boxY + gdata->height;
 776             vh = vy - (y + gdata->height);
 777
 778             hy = y;
 779             hh = y - gdata->boxY;
 780         } else {
 781             vy = vh = 0;
 782
 783             hy = y;
 784             hh = gdata->height;
 785         }
 786
 787         if (x < gdata->boxX) {
 788             hx = x;
 789             hw = gdata->boxX - hx;
 790         } else if (x > gdata->boxX) {
 791             hx = gdata->boxX + gdata->width;
 792             hw = hx - (x + gdata->width);
 793         } else {
 794             hx = hw = 0;
 795
 796             vx = x;
 797             vw = gdata->width;
 798         }
 799
 800         /* 1st the top/bottom part */
 801
 802
 803
 804         /* 2nd the left/right part */
 805     }
 806
 807     mergeGhostWindow(gdata);
 808 }
 809
 810
 811 #endif /* GHOST_WINDOW_MOVE */
 812