src/screen.c

   1 /* screen.c - screen management
   2  *
   3  *  Window Maker window manager
   4  *
   5  *  Copyright (c) 1997, 1998 Alfredo K. Kojima
   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 <stdio.h>
  26 #include <stdlib.h>
  27 #include <string.h>
  28
  29 #include <X11/Xlib.h>
  30 #include <X11/Xutil.h>
  31 #include <X11/Xatom.h>
  32 #ifdef SHAPE
  33 #include <X11/extensions/shape.h>
  34 #endif
  35 #ifdef KEEP_XKB_LOCK_STATUS
  36 #include <X11/XKBlib.h>
  37 #endif /* KEEP_XKB_LOCK_STATUS */
  38
  39 #include <wraster.h>
  40
  41 #include "WindowMaker.h"
  42 #include "def_pixmaps.h"
  43 #include "screen.h"
  44 #include "texture.h"
  45 #include "pixmap.h"
  46 #include "menu.h"
  47 #include "funcs.h"
  48 #include "actions.h"
  49 #include "properties.h"
  50 #include "dock.h"
  51 #include "resources.h"
  52 #include "workspace.h"
  53 #include "session.h"
  54 #include "balloon.h"
  55 #include "geomview.h"
  56 #ifdef KWM_HINTS
  57 # include "kwm.h"
  58 #endif
  59 #ifdef GNOME_STUFF
  60 # include "gnome.h"
  61 #endif
  62 #ifdef OLWM_HINTS
  63 # include "openlook.h"
  64 #endif
  65
  66 #include <proplist.h>
  67
  68 #include "defaults.h"
  69
  70
  71 #ifdef LITE
  72 #define EVENT_MASK (LeaveWindowMask|EnterWindowMask|PropertyChangeMask\
  73                 |SubstructureNotifyMask|PointerMotionMask \
  74                 |SubstructureRedirectMask|KeyPressMask|KeyReleaseMask)
  75 #else
  76 #define EVENT_MASK (LeaveWindowMask|EnterWindowMask|PropertyChangeMask\
  77                 |SubstructureNotifyMask|PointerMotionMask \
  78                 |SubstructureRedirectMask|ButtonPressMask|ButtonReleaseMask\
  79                 |KeyPressMask|KeyReleaseMask)
  80 #endif
  81
  82 /**** Global variables ****/
  83
  84 extern Cursor wCursor[WCUR_LAST];
  85 extern WPreferences wPreferences;
  86 extern Atom _XA_WINDOWMAKER_STATE;
  87 extern Atom _XA_WINDOWMAKER_NOTICEBOARD;
  88
  89
  90 extern int wScreenCount;
  91
  92 #ifdef KEEP_XKB_LOCK_STATUS
  93 extern int wXkbSupported;
  94 #endif
  95
  96 extern WDDomain *WDWindowMaker;
  97
  98
  99 /**** Local ****/
 100
 101 #define STIPPLE_WIDTH 2
 102 #define STIPPLE_HEIGHT 2
 103 static char STIPPLE_DATA[] = {0x02, 0x01};
 104
 105 static int CantManageScreen = 0;
 106
 107 static proplist_t dApplications = NULL;
 108 static proplist_t dWorkspace;
 109 static proplist_t dDock;
 110 static proplist_t dClip;
 111
 112
 113 static void
 114 make_keys()
 115 {
 116     if (dApplications!=NULL)
 117         return;
 118
 119     dApplications = PLMakeString("Applications");
 120     dWorkspace = PLMakeString("Workspace");
 121     dDock = PLMakeString("Dock");
 122     dClip = PLMakeString("Clip");
 123 }
 124
 125
 126 /*
 127  *----------------------------------------------------------------------
 128  * alreadyRunningError--
 129  *      X error handler used to catch errors when trying to do
 130  * XSelectInput() on the root window. These errors probably mean that
 131  * there already is some other window manager running.
 132  *
 133  * Returns:
 134  *      Nothing, unless something really evil happens...
 135  *
 136  * Side effects:
 137  *      CantManageScreen is set to 1;
 138  *----------------------------------------------------------------------
 139  */
 140 static int
 141 alreadyRunningError(Display *dpy, XErrorEvent *error)
 142 {
 143     CantManageScreen = 1;
 144     return -1;
 145 }
 146
 147
 148 /*
 149  *----------------------------------------------------------------------
 150  * allocButtonPixmaps--
 151  *      Allocate pixmaps used on window operation buttons (those in the
 152  * titlebar). The pixmaps are linked to the program. If XPM is supported
 153  * XPM pixmaps are used otherwise, equivalent bitmaps are used.
 154  *
 155  * Returns:
 156  *      Nothing
 157  *
 158  * Side effects:
 159  *      Allocates shared pixmaps for the screen. These pixmaps should
 160  * not be freed by anybody.
 161  *----------------------------------------------------------------------
 162  */
 163 static void
 164 allocButtonPixmaps(WScreen *scr)
 165 {
 166     WPixmap *pix;
 167
 168     /* create predefined pixmaps */
 169     pix = wPixmapCreateFromXPMData(scr, PRED_CLOSE_XPM);
 170     if (pix)
 171       pix->shared = 1;
 172     scr->b_pixmaps[WBUT_CLOSE] = pix;
 173
 174     pix = wPixmapCreateFromXPMData(scr, PRED_BROKEN_CLOSE_XPM);
 175     if (pix)
 176       pix->shared = 1;
 177     scr->b_pixmaps[WBUT_BROKENCLOSE] = pix;
 178
 179     pix = wPixmapCreateFromXPMData(scr, PRED_ICONIFY_XPM);
 180     if (pix)
 181       pix->shared = 1;
 182     scr->b_pixmaps[WBUT_ICONIFY] = pix;
 183 #ifdef XKB_BUTTON_HINT
 184     pix = wPixmapCreateFromXPMData(scr, PRED_XKBGROUP1_XPM);
 185     if (pix)
 186       pix->shared = 1;
 187     scr->b_pixmaps[WBUT_XKBGROUP1] = pix;
 188     pix = wPixmapCreateFromXPMData(scr, PRED_XKBGROUP2_XPM);
 189     if (pix)
 190       pix->shared = 1;
 191     scr->b_pixmaps[WBUT_XKBGROUP2] = pix;
 192     pix = wPixmapCreateFromXPMData(scr, PRED_XKBGROUP3_XPM);
 193     if (pix)
 194       pix->shared = 1;
 195     scr->b_pixmaps[WBUT_XKBGROUP3] = pix;
 196     pix = wPixmapCreateFromXPMData(scr, PRED_XKBGROUP4_XPM);
 197     if (pix)
 198       pix->shared = 1;
 199     scr->b_pixmaps[WBUT_XKBGROUP4] = pix;
 200 #endif
 201
 202
 203     pix = wPixmapCreateFromXPMData(scr, PRED_KILL_XPM);
 204     if (pix)
 205       pix->shared = 1;
 206     scr->b_pixmaps[WBUT_KILL] = pix;
 207 }
 208
 209
 210 static void
 211 draw_dot(WScreen *scr, Drawable d, int x, int y, GC gc)
 212 {
 213     XSetForeground(dpy, gc, scr->black_pixel);
 214     XDrawLine(dpy, d, gc, x, y, x+1, y);
 215     XDrawPoint(dpy, d, gc, x, y+1);
 216     XSetForeground(dpy, gc, scr->white_pixel);
 217     XDrawLine(dpy, d, gc, x+2, y, x+2, y+1);
 218     XDrawPoint(dpy, d, gc, x+1, y+1);
 219 }
 220
 221
 222 static WPixmap*
 223 make3Dots(WScreen *scr)
 224 {
 225     WPixmap *wpix;
 226     GC gc2, gc;
 227     XGCValues gcv;
 228     Pixmap pix, mask;
 229
 230     gc = scr->copy_gc;
 231     pix = XCreatePixmap(dpy, scr->w_win, wPreferences.icon_size,
 232                         wPreferences.icon_size, scr->w_depth);
 233     XSetForeground(dpy, gc, scr->black_pixel);
 234     XFillRectangle(dpy, pix, gc, 0, 0, wPreferences.icon_size,
 235                    wPreferences.icon_size);
 236     XSetForeground(dpy, gc, scr->white_pixel);
 237     draw_dot(scr, pix, 4, wPreferences.icon_size-6, gc);
 238     draw_dot(scr, pix, 9, wPreferences.icon_size-6, gc);
 239     draw_dot(scr, pix, 14, wPreferences.icon_size-6, gc);
 240
 241     mask = XCreatePixmap(dpy, scr->w_win, wPreferences.icon_size,
 242                          wPreferences.icon_size, 1);
 243     gcv.foreground = 0;
 244     gcv.graphics_exposures = False;
 245     gc2 = XCreateGC(dpy, mask, GCForeground|GCGraphicsExposures, &gcv);
 246     XFillRectangle(dpy, mask, gc2, 0, 0, wPreferences.icon_size,
 247                    wPreferences.icon_size);
 248     XSetForeground(dpy, gc2, 1);
 249     XFillRectangle(dpy, mask, gc2, 4, wPreferences.icon_size-6, 3, 2);
 250     XFillRectangle(dpy, mask, gc2, 9, wPreferences.icon_size-6, 3, 2);
 251     XFillRectangle(dpy, mask, gc2, 14, wPreferences.icon_size-6, 3, 2);
 252
 253     XFreeGC(dpy, gc2);
 254
 255     wpix = wPixmapCreate(scr, pix, mask);
 256     wpix->shared = 1;
 257
 258     return wpix;
 259 }
 260
 261
 262 static void
 263 allocGCs(WScreen *scr)
 264 {
 265     XGCValues gcv;
 266     XColor color;
 267     unsigned long mtextcolor;
 268     int gcm;
 269
 270     scr->stipple_bitmap =
 271       XCreateBitmapFromData(dpy, scr->w_win, STIPPLE_DATA, STIPPLE_WIDTH,
 272                             STIPPLE_HEIGHT);
 273
 274     gcv.stipple = scr->stipple_bitmap;
 275     gcv.foreground = scr->white_pixel;
 276     gcv.fill_style = FillStippled;
 277     gcv.graphics_exposures = False;
 278     gcm = GCForeground|GCStipple|GCFillStyle|GCGraphicsExposures;
 279     scr->stipple_gc = XCreateGC(dpy, scr->w_win, gcm, &gcv);
 280
 281
 282     /* selected icon border GCs */
 283     gcv.function    = GXcopy;
 284     gcv.foreground  = scr->white_pixel;
 285     gcv.background  = scr->black_pixel;
 286     gcv.line_width  = 1;
 287     gcv.line_style  = LineDoubleDash;
 288     gcv.fill_style  = FillSolid;
 289     gcv.dash_offset = 0;
 290     gcv.dashes      = 4;
 291     gcv.graphics_exposures = False;
 292
 293     gcm = GCFunction | GCGraphicsExposures;
 294     gcm |= GCForeground | GCBackground;
 295     gcm |= GCLineWidth | GCLineStyle;
 296     gcm |= GCFillStyle;
 297     gcm |= GCDashOffset | GCDashList;
 298
 299     scr->icon_select_gc = XCreateGC(dpy, scr->w_win, gcm, &gcv);
 300
 301     gcm = GCForeground|GCGraphicsExposures;
 302
 303     scr->menu_title_pixel[0] = scr->white_pixel;
 304     gcv.foreground = scr->white_pixel;
 305     gcv.graphics_exposures = False;
 306     scr->menu_title_gc = XCreateGC(dpy, scr->w_win, gcm, &gcv);
 307
 308     scr->mtext_pixel = scr->black_pixel;
 309     mtextcolor = gcv.foreground = scr->black_pixel;
 310     scr->menu_entry_gc = XCreateGC(dpy, scr->w_win, gcm, &gcv);
 311
 312     /* selected menu entry GC */
 313     gcm = GCForeground|GCBackground|GCGraphicsExposures;
 314     gcv.foreground = scr->white_pixel;
 315     gcv.background = scr->white_pixel;
 316     gcv.graphics_exposures = False;
 317     scr->select_menu_gc = XCreateGC(dpy, scr->w_win, gcm, &gcv);
 318
 319     /* disabled menu entry GC */
 320     scr->dtext_pixel = scr->black_pixel;
 321     gcm = GCForeground|GCBackground|GCStipple|GCGraphicsExposures;
 322     gcv.stipple = scr->stipple_bitmap;
 323     gcv.graphics_exposures = False;
 324     scr->disabled_menu_entry_gc = XCreateGC(dpy, scr->w_win, gcm, &gcv);
 325
 326     /* frame GC */
 327     wGetColor(scr, DEF_FRAME_COLOR, &color);
 328     gcv.function = GXxor;
 329     /* this will raise the probability of the XORed color being different
 330      * of the original color in PseudoColor when not all color cells are
 331      * initialized */
 332     if (DefaultVisual(dpy, scr->screen)->class==PseudoColor)
 333         gcv.plane_mask = (1<<(scr->depth-1))|1;
 334     else
 335         gcv.plane_mask = AllPlanes;
 336     gcv.foreground = color.pixel;
 337     if (gcv.foreground == 0)
 338         gcv.foreground = 1;
 339     gcv.line_width = DEF_FRAME_THICKNESS;
 340     gcv.subwindow_mode = IncludeInferiors;
 341     gcv.graphics_exposures = False;
 342     scr->frame_gc = XCreateGC(dpy, scr->root_win, GCForeground|GCGraphicsExposures
 343                               |GCFunction|GCSubwindowMode|GCLineWidth
 344                               |GCPlaneMask, &gcv);
 345
 346     /* line GC */
 347     gcv.foreground = color.pixel;
 348
 349     if (gcv.foreground == 0)
 350         /* XOR:ing with a zero is not going to be of much use, so
 351            in that case, we somewhat arbitrarily xor with 17 instead. */
 352         gcv.foreground = 17;
 353
 354     gcv.function = GXxor;
 355     gcv.subwindow_mode = IncludeInferiors;
 356     gcv.line_width = 1;
 357     gcv.cap_style = CapRound;
 358     gcv.graphics_exposures = False;
 359     gcm = GCForeground|GCFunction|GCSubwindowMode|GCLineWidth|GCCapStyle
 360         |GCGraphicsExposures;
 361     scr->line_gc = XCreateGC(dpy, scr->root_win, gcm, &gcv);
 362
 363     scr->line_pixel = gcv.foreground;
 364
 365     /* copy GC */
 366     gcv.foreground = scr->white_pixel;
 367     gcv.background = scr->black_pixel;
 368     gcv.graphics_exposures = False;
 369     scr->copy_gc = XCreateGC(dpy, scr->w_win, GCForeground|GCBackground
 370                              |GCGraphicsExposures, &gcv);
 371
 372     /* window title text GC */
 373     gcv.graphics_exposures = False;
 374     scr->window_title_gc = XCreateGC(dpy, scr->w_win,GCGraphicsExposures,&gcv);
 375
 376     /* icon title GC */
 377     scr->icon_title_gc = XCreateGC(dpy, scr->w_win, GCGraphicsExposures, &gcv);
 378
 379     /* clip title GC */
 380     scr->clip_title_gc = XCreateGC(dpy, scr->w_win, GCGraphicsExposures, &gcv);
 381
 382     /* move/size display GC */
 383     gcv.graphics_exposures = False;
 384     gcm = GCGraphicsExposures;
 385     scr->info_text_gc = XCreateGC(dpy, scr->w_win, gcm, &gcv);
 386
 387     /* misc drawing GC */
 388     gcv.graphics_exposures = False;
 389     gcm = GCGraphicsExposures;
 390     scr->draw_gc = XCreateGC(dpy, scr->w_win, gcm, &gcv);
 391
 392     assert (scr->stipple_bitmap!=None);
 393
 394
 395     /* mono GC */
 396     scr->mono_gc = XCreateGC(dpy, scr->stipple_bitmap, gcm, &gcv);
 397 }
 398
 399
 400
 401 static void
 402 createPixmaps(WScreen *scr)
 403 {
 404     WPixmap *pix;
 405     WMPixmap *wmpix;
 406     RImage *image;
 407     Pixmap p, m;
 408
 409     /* load pixmaps */
 410     pix = wPixmapCreateFromXBMData(scr, (char*)MENU_RADIO_INDICATOR_XBM_DATA,
 411                                    (char*)MENU_RADIO_INDICATOR_XBM_DATA,
 412                                    MENU_RADIO_INDICATOR_XBM_SIZE,
 413                                    MENU_RADIO_INDICATOR_XBM_SIZE,
 414                                    scr->black_pixel, scr->white_pixel);
 415     if (pix!=NULL)
 416       pix->shared = 1;
 417     scr->menu_radio_indicator = pix;
 418
 419
 420     pix = wPixmapCreateFromXBMData(scr, (char*)MENU_CHECK_INDICATOR_XBM_DATA,
 421                                    (char*)MENU_CHECK_INDICATOR_XBM_DATA,
 422                                    MENU_CHECK_INDICATOR_XBM_SIZE,
 423                                    MENU_CHECK_INDICATOR_XBM_SIZE,
 424                                    scr->black_pixel, scr->white_pixel);
 425     if (pix!=NULL)
 426       pix->shared = 1;
 427     scr->menu_check_indicator = pix;
 428
 429     pix = wPixmapCreateFromXBMData(scr, (char*)MENU_MINI_INDICATOR_XBM_DATA,
 430                                    (char*)MENU_MINI_INDICATOR_XBM_DATA,
 431                                    MENU_MINI_INDICATOR_XBM_SIZE,
 432                                    MENU_MINI_INDICATOR_XBM_SIZE,
 433                                    scr->black_pixel, scr->white_pixel);
 434     if (pix!=NULL)
 435       pix->shared = 1;
 436     scr->menu_mini_indicator = pix;
 437
 438     pix = wPixmapCreateFromXBMData(scr, (char*)MENU_HIDE_INDICATOR_XBM_DATA,
 439                                    (char*)MENU_HIDE_INDICATOR_XBM_DATA,
 440                                    MENU_HIDE_INDICATOR_XBM_SIZE,
 441                                    MENU_HIDE_INDICATOR_XBM_SIZE,
 442                                    scr->black_pixel, scr->white_pixel);
 443     if (pix!=NULL)
 444       pix->shared = 1;
 445     scr->menu_hide_indicator = pix;
 446
 447     pix = wPixmapCreateFromXBMData(scr, (char*)MENU_SHADE_INDICATOR_XBM_DATA,
 448                                   (char*)MENU_SHADE_INDICATOR_XBM_DATA,
 449                                   MENU_SHADE_INDICATOR_XBM_SIZE,
 450                                   MENU_SHADE_INDICATOR_XBM_SIZE,
 451                                   scr->black_pixel, scr->white_pixel);
 452     if (pix!=NULL)
 453       pix->shared = 1;
 454     scr->menu_shade_indicator = pix;
 455
 456
 457     image = wDefaultGetImage(scr, "Logo", "WMPanel");
 458
 459     if (!image) {
 460         wwarning(_("could not load logo image for panels: %s"),
 461                  RMessageForError(RErrorCode));
 462     } else {
 463         if (!RConvertImageMask(scr->rcontext, image, &p, &m, 128)) {
 464             wwarning(_("error making logo image for panel:%s"), RMessageForError(RErrorCode));
 465         } else {
 466             wmpix = WMCreatePixmapFromXPixmaps(scr->wmscreen, p, m,
 467                                                image->width, image->height,
 468                                                scr->depth);
 469             WMSetApplicationIconImage(scr->wmscreen, wmpix);
 470             WMReleasePixmap(wmpix);
 471         }
 472         RDestroyImage(image);
 473     }
 474
 475     scr->dock_dots = make3Dots(scr);
 476
 477     /* titlebar button pixmaps */
 478     allocButtonPixmaps(scr);
 479 }
 480
 481
 482 /*
 483  *----------------------------------------------------------------------
 484  * createInternalWindows--
 485  *      Creates some windows used internally by the program. One to
 486  * receive input focus when no other window can get it and another
 487  * to display window geometry information during window resize/move.
 488  *
 489  * Returns:
 490  *      Nothing
 491  *
 492  * Side effects:
 493  *      Windows are created and some colors are allocated for the
 494  * window background.
 495  *----------------------------------------------------------------------
 496  */
 497 static void
 498 createInternalWindows(WScreen *scr)
 499 {
 500     int vmask;
 501     XSetWindowAttributes attribs;
 502
 503     /* InputOnly window to get the focus when no other window can get it */
 504     vmask = CWEventMask|CWOverrideRedirect;
 505     attribs.event_mask = KeyPressMask|FocusChangeMask;
 506     attribs.override_redirect = True;
 507     scr->no_focus_win=XCreateWindow(dpy,scr->root_win,-10, -10, 4, 4, 0, 0,
 508                                     InputOnly,CopyFromParent, vmask, &attribs);
 509     XSelectInput(dpy, scr->no_focus_win, KeyPressMask|KeyReleaseMask);
 510     XMapWindow(dpy, scr->no_focus_win);
 511
 512     XSetInputFocus(dpy, scr->no_focus_win, RevertToParent, CurrentTime);
 513
 514     /* shadow window for dock buttons */
 515     vmask = CWBorderPixel|CWBackPixmap|CWBackPixel|CWCursor|CWSaveUnder|CWOverrideRedirect;
 516     attribs.border_pixel = scr->black_pixel;
 517     attribs.save_under = True;
 518     attribs.override_redirect = True;
 519     attribs.background_pixmap = None;
 520     attribs.background_pixel = scr->white_pixel;
 521     attribs.cursor = wCursor[WCUR_DEFAULT];
 522     vmask |= CWColormap;
 523     attribs.colormap = scr->w_colormap;
 524     scr->dock_shadow =
 525       XCreateWindow(dpy, scr->root_win, 0, 0, wPreferences.icon_size,
 526                     wPreferences.icon_size, 0, scr->w_depth, CopyFromParent,
 527                     scr->w_visual, vmask, &attribs);
 528
 529     /* workspace name balloon for clip */
 530     vmask = CWBackPixel|CWSaveUnder|CWOverrideRedirect|CWColormap
 531         |CWBorderPixel;
 532     attribs.save_under = True;
 533     attribs.override_redirect = True;
 534     attribs.colormap = scr->w_colormap;
 535     attribs.background_pixel = scr->icon_back_texture->normal.pixel;
 536     attribs.border_pixel = 0; /* do not care */
 537     scr->clip_balloon =
 538       XCreateWindow(dpy, scr->root_win, 0, 0, 10, 10, 0, scr->w_depth,
 539                     CopyFromParent, scr->w_visual, vmask, &attribs);
 540
 541
 542     /* workspace name */
 543     vmask = CWBackPixel|CWSaveUnder|CWOverrideRedirect|CWColormap
 544         |CWBorderPixel;
 545     attribs.save_under = True;
 546     attribs.override_redirect = True;
 547     attribs.colormap = scr->w_colormap;
 548     attribs.background_pixel = scr->icon_back_texture->normal.pixel;
 549     attribs.border_pixel = 0; /* do not care */
 550     scr->workspace_name =
 551       XCreateWindow(dpy, scr->root_win, 0, 0, 10, 10, 0, scr->w_depth,
 552                     CopyFromParent, scr->w_visual, vmask, &attribs);
 553
 554
 555     /* for our window manager info notice board */
 556     scr->info_window =
 557       XCreateWindow(dpy, scr->root_win, 0, 0, 10, 10, 0, CopyFromParent,
 558                     CopyFromParent, CopyFromParent, CWOverrideRedirect,
 559                     &attribs);
 560
 561     /*
 562      * If the window is clicked without having ButtonPress selected, the
 563      * resulting event will have event.xbutton.window == root.
 564      */
 565     XSelectInput(dpy, scr->clip_balloon, ButtonPressMask);
 566 }
 567
 568
 569 #if 0
 570 static Bool
 571 aquireManagerSelection(WScreen *scr)
 572 {
 573     char buffer[32];
 574     XEvent ev;
 575     Time timestamp;
 576
 577     sprintf(buffer, "WM_S%i", scr->screen);
 578     scr->managerAtom = XInternAtom(dpy, buffer, False);
 579
 580     /* for race-conditions... */
 581     XGrabServer(dpy);
 582
 583     /* if there is another manager running, don't try to replace it
 584      * (for now, at least) */
 585     if (XGetSelectionOwner(dpy, scr->managerAtom) != None) {
 586         XUngrabServer(dpy);
 587         return False;
 588     }
 589
 590     /* become the manager for this screen */
 591
 592     scr->managerWindow = XCreateSimpleWindow(dpy, scr->root_win, 0, 0, 1, 1,
 593                                              0, 0, 0);
 594
 595     XSelectInput(dpy, scr->managerWindow, PropertyChangeMask);
 596     /* get a timestamp */
 597     XChangeProperty(dpy, scr->managerWindow, scr->managerAtom,
 598                     XA_INTEGER, 32, PropModeAppend, NULL, 0);
 599     while (1) {
 600         XWindowEvent(dpy, scr->managerWindow, &ev);
 601         if (ev.type == PropertyNotify) {
 602             timestamp = ev.xproperty.time;
 603             break;
 604         }
 605     }
 606     XSelectInput(dpy, scr->managerWindow, NoEvents);
 607     XDeleteProperty(dpy, scr->managerWindow, scr->managerAtom);
 608
 609     XSetSelectionOwner(dpy, scr->managerAtom, scr->managerWindow, CurrentTime);
 610
 611     XUngrabServer(dpy);
 612
 613     /* announce our arrival */
 614
 615     ev.xclient.type = ClientMessage;
 616     ev.xclient.message_type = XInternAtom(dpy, "MANAGER", False);
 617     ev.xclient.destination = scr->root_win;
 618     ev.xclient.format = 32;
 619     ev.xclient.data.l[0] = timestamp;
 620     ev.xclient.data.l[1] = scr->managerAtom;
 621     ev.xclient.data.l[2] = scr->managerWindow;
 622     ev.xclient.data.l[3] = 0;
 623     ev.xclient.data.l[4] = 0;
 624
 625     XSendEvent(dpy, scr->root_win, False, StructureNotify, &ev);
 626     XSync(dpy, False);
 627
 628     return True;
 629 }
 630 #endif
 631
 632 /*
 633  *----------------------------------------------------------------------
 634  * wScreenInit--
 635  *      Initializes the window manager for the given screen and
 636  * allocates a WScreen descriptor for it. Many resources are allocated
 637  * for the screen and the root window is setup appropriately.
 638  *
 639  * Returns:
 640  *      The WScreen descriptor for the screen.
 641  *
 642  * Side effects:
 643  *      Many resources are allocated and the IconSize property is
 644  * set on the root window.
 645  *      The program can be aborted if some fatal error occurs.
 646  *
 647  * TODO: User specifiable visual.
 648  *----------------------------------------------------------------------
 649  */
 650 WScreen*
 651 wScreenInit(int screen_number)
 652 {
 653     WScreen *scr;
 654     XIconSize icon_size[1];
 655     RContextAttributes rattr;
 656     extern int wVisualID;
 657     long event_mask;
 658     WMColor *color;
 659     XErrorHandler oldHandler;
 660
 661     scr = wmalloc(sizeof(WScreen));
 662     memset(scr, 0, sizeof(WScreen));
 663
 664     /* initialize globals */
 665     scr->screen = screen_number;
 666     scr->root_win = RootWindow(dpy, screen_number);
 667     scr->depth = DefaultDepth(dpy, screen_number);
 668     scr->colormap = DefaultColormap(dpy, screen_number);
 669
 670     scr->scr_width = WidthOfScreen(ScreenOfDisplay(dpy, screen_number));
 671     scr->scr_height = HeightOfScreen(ScreenOfDisplay(dpy, screen_number));
 672
 673     scr->usableArea.x2 = scr->scr_width;
 674     scr->usableArea.y2 = scr->scr_height;
 675     scr->totalUsableArea.x2 = scr->scr_width;
 676     scr->totalUsableArea.y2 = scr->scr_height;
 677
 678 #if 0
 679     if (!aquireManagerSelection(scr)) {
 680         free(scr);
 681
 682         return NULL;
 683     }
 684 #endif
 685     CantManageScreen = 0;
 686     oldHandler = XSetErrorHandler((XErrorHandler)alreadyRunningError);
 687
 688     event_mask = EVENT_MASK;
 689
 690     if (wPreferences.disable_root_mouse) {
 691         event_mask &= ~(ButtonPressMask|ButtonReleaseMask);
 692     }
 693
 694     XSelectInput(dpy, scr->root_win, event_mask);
 695
 696 #ifdef KEEP_XKB_LOCK_STATUS
 697     /* Only GroupLock doesn't work correctly in my system since right-alt
 698      * can change mode while holding it too - ]d
 699      */
 700     if (wXkbSupported) {
 701         XkbSelectEvents(dpy,XkbUseCoreKbd,
 702                 XkbStateNotifyMask,
 703                 XkbStateNotifyMask);
 704     }
 705 #endif /* KEEP_XKB_LOCK_STATUS */
 706
 707     XSync(dpy, False);
 708     XSetErrorHandler(oldHandler);
 709
 710     if (CantManageScreen) {
 711         free(scr);
 712         return NULL;
 713     }
 714
 715     XDefineCursor(dpy, scr->root_win, wCursor[WCUR_DEFAULT]);
 716
 717     /* screen descriptor for raster graphic library */
 718     rattr.flags = RC_RenderMode | RC_ColorsPerChannel | RC_StandardColormap;
 719     rattr.render_mode = wPreferences.no_dithering
 720                                 ? RBestMatchRendering
 721                                 : RDitheredRendering;
 722
 723     /* if the std colormap stuff works ok, this will be ignored */
 724     rattr.colors_per_channel = wPreferences.cmap_size;
 725     if (rattr.colors_per_channel<2)
 726         rattr.colors_per_channel = 2;
 727
 728     /* will only be accounted for in PseudoColor */
 729     rattr.standard_colormap_mode = RCreateStdColormap;
 730
 731     if (wVisualID>=0) {
 732         rattr.flags |= RC_VisualID;
 733         rattr.visualid = wVisualID;
 734     }
 735
 736     scr->rcontext = RCreateContext(dpy, screen_number, &rattr);
 737
 738     if (!scr->rcontext && RErrorCode == RERR_STDCMAPFAIL) {
 739         wwarning(RMessageForError(RErrorCode));
 740
 741         rattr.flags &= ~RC_StandardColormap;
 742         rattr.standard_colormap_mode = RUseStdColormap;
 743
 744         scr->rcontext = RCreateContext(dpy, screen_number, &rattr);
 745     }
 746
 747     if (!scr->rcontext) {
 748         wwarning(_("could not initialize graphics library context: %s"),
 749                  RMessageForError(RErrorCode));
 750         wAbort(False);
 751     } else {
 752         char **formats;
 753         int i = 0;
 754
 755         formats = RSupportedFileFormats();
 756         if (formats) {
 757             for (i=0; formats[i]!=NULL; i++) {
 758                 if (strcmp(formats[i], "TIFF")==0) {
 759                     scr->flags.supports_tiff = 1;
 760                     break;
 761                 }
 762             }
 763         }
 764     }
 765
 766     scr->w_win = scr->rcontext->drawable;
 767     scr->w_visual = scr->rcontext->visual;
 768     scr->w_depth = scr->rcontext->depth;
 769     scr->w_colormap = scr->rcontext->cmap;
 770
 771     scr->black_pixel = scr->rcontext->black;
 772     scr->white_pixel = scr->rcontext->white;
 773
 774     /* create screen descriptor for WINGs */
 775     scr->wmscreen = WMCreateScreenWithRContext(dpy, screen_number,
 776                                                scr->rcontext);
 777
 778     if (!scr->wmscreen) {
 779         wfatal(_("could not do initialization of WINGs widget set"));
 780
 781         return NULL;
 782     }
 783
 784     color = WMGrayColor(scr->wmscreen);
 785     scr->light_pixel = WMColorPixel(color);
 786     WMReleaseColor(color);
 787
 788     color = WMDarkGrayColor(scr->wmscreen);
 789     scr->dark_pixel = WMColorPixel(color);
 790     WMReleaseColor(color);
 791
 792     {
 793         XColor xcol;
 794         /* frame boder color */
 795         wGetColor(scr, FRAME_BORDER_COLOR, &xcol);
 796         scr->frame_border_pixel = xcol.pixel;
 797     }
 798
 799     /* create GCs with default values */
 800     allocGCs(scr);
 801
 802     /* read defaults for this screen */
 803     wReadDefaults(scr, WDWindowMaker->dictionary);
 804
 805     createInternalWindows(scr);
 806
 807 #ifdef KWM_HINTS
 808     wKWMInitStuff(scr);
 809 #endif
 810
 811 #ifdef GNOME_STUFF
 812     wGNOMEInitStuff(scr);
 813 #endif
 814
 815 #ifdef OLWM_HINTS
 816     wOLWMInitStuff(scr);
 817 #endif
 818
 819     /* create initial workspace */
 820     wWorkspaceNew(scr);
 821
 822     /* create shared pixmaps */
 823     createPixmaps(scr);
 824
 825     /* set icon sizes we can accept from clients */
 826     icon_size[0].min_width = 8;
 827     icon_size[0].min_height = 8;
 828     icon_size[0].max_width = wPreferences.icon_size-4;
 829     icon_size[0].max_height = wPreferences.icon_size-4;
 830     icon_size[0].width_inc = 1;
 831     icon_size[0].height_inc = 1;
 832     XSetIconSizes(dpy, scr->root_win, icon_size, 1);
 833
 834     /* setup WindowMaker protocols property in the root window*/
 835     PropSetWMakerProtocols(scr->root_win);
 836
 837     /* setup our noticeboard */
 838     XChangeProperty(dpy, scr->info_window, _XA_WINDOWMAKER_NOTICEBOARD,
 839                     XA_WINDOW, 32, PropModeReplace,
 840                     (unsigned char*)&scr->info_window, 1);
 841     XChangeProperty(dpy, scr->root_win, _XA_WINDOWMAKER_NOTICEBOARD,
 842                     XA_WINDOW, 32, PropModeReplace,
 843                     (unsigned char*)&scr->info_window, 1);
 844
 845
 846 #ifdef BALLOON_TEXT
 847     /* initialize balloon text stuff */
 848     wBalloonInitialize(scr);
 849 #endif
 850
 851     scr->info_text_font = WMBoldSystemFontOfSize(scr->wmscreen, 12);
 852
 853
 854     scr->gview = WCreateGeometryView(scr->wmscreen);
 855     WMRealizeWidget(scr->gview);
 856
 857     wScreenUpdateUsableArea(scr);
 858
 859
 860     return scr;
 861 }
 862
 863
 864 void
 865 wScreenUpdateUsableArea(WScreen *scr)
 866 {
 867 #ifdef GNOME_STUFF
 868     WReservedArea *area;
 869 #endif
 870
 871     scr->totalUsableArea = scr->usableArea;
 872
 873
 874     if (scr->dock && (!scr->dock->lowered
 875                       || wPreferences.no_window_over_dock)) {
 876
 877         int offset = wPreferences.icon_size + DOCK_EXTRA_SPACE;
 878
 879         if (scr->dock->on_right_side) {
 880             scr->totalUsableArea.x2 = WMIN(scr->totalUsableArea.x2,
 881                                           scr->scr_width - offset);
 882         } else {
 883             scr->totalUsableArea.x1 = WMAX(scr->totalUsableArea.x1, offset);
 884         }
 885     }
 886
 887     if (wPreferences.no_window_over_icons) {
 888         if (wPreferences.icon_yard & IY_VERT) {
 889
 890             if (!(wPreferences.icon_yard & IY_RIGHT)) {
 891                 scr->totalUsableArea.x1 += wPreferences.icon_size;
 892             } else {
 893                 scr->totalUsableArea.x2 -= wPreferences.icon_size;
 894             }
 895         } else {
 896
 897             if (wPreferences.icon_yard & IY_TOP) {
 898                 scr->totalUsableArea.y1 += wPreferences.icon_size;
 899             } else {
 900                 scr->totalUsableArea.y2 -= wPreferences.icon_size;
 901             }
 902         }
 903     }
 904
 905 #ifdef KWM_HINTS
 906     {
 907         WArea area;
 908
 909         if (wKWMGetUsableArea(scr, &area)) {
 910             scr->totalUsableArea.x1 = WMAX(scr->totalUsableArea.x1, area.x1);
 911             scr->totalUsableArea.y1 = WMAX(scr->totalUsableArea.y1, area.y1);
 912             scr->totalUsableArea.x2 = WMIN(scr->totalUsableArea.x2, area.x2);
 913             scr->totalUsableArea.y2 = WMIN(scr->totalUsableArea.y2, area.y2);
 914         }
 915     }
 916 #endif
 917
 918 #ifdef GNOME_STUFF
 919     area = scr->reservedAreas;
 920
 921     while (area) {
 922         int th, bh;
 923         int lw, rw;
 924         int w, h;
 925
 926         w = area->area.x2 - area->area.x1;
 927         h = area->area.y2 - area->area.y1;
 928
 929         th = area->area.y1;
 930         bh = scr->scr_height - area->area.y2;
 931         lw = area->area.x1;
 932         rw = scr->scr_width - area->area.x2;
 933
 934         if (WMIN(th, bh) < WMIN(lw, rw)) {
 935             /* horizontal */
 936             if (th < bh) {
 937                 /* on top */
 938                 if (scr->totalUsableArea.y1 < area->area.y2)
 939                     scr->totalUsableArea.y1 = area->area.y2;
 940             } else {
 941                 /* on bottom */
 942                 if (scr->totalUsableArea.y2 > area->area.y1)
 943                     scr->totalUsableArea.y2 = area->area.y1;
 944             }
 945         } else {
 946             /* vertical */
 947             if (lw < rw) {
 948                 /* on left */
 949                 if (scr->totalUsableArea.x1 < area->area.x2)
 950                     scr->totalUsableArea.x1 = area->area.x2;
 951             } else {
 952                 /* on right */
 953                 if (scr->totalUsableArea.x2 > area->area.x1)
 954                     scr->totalUsableArea.x2 = area->area.x1;
 955             }
 956         }
 957
 958         area = area->next;
 959     }
 960 #endif /* GNOME_STUFF */
 961
 962     if (scr->totalUsableArea.x2 - scr->totalUsableArea.x1 < scr->scr_width/2) {
 963         scr->totalUsableArea.x2 = scr->usableArea.x2;
 964         scr->totalUsableArea.x1 = scr->usableArea.x1;
 965     }
 966     if (scr->totalUsableArea.y2 - scr->totalUsableArea.y1 < scr->scr_height/2) {
 967         scr->totalUsableArea.y2 = scr->usableArea.y2;
 968         scr->totalUsableArea.y1 = scr->usableArea.y1;
 969     }
 970
 971 #ifdef not_used
 972 #ifdef KWM_HINTS
 973     {
 974         int i;
 975
 976         for (i = 0; i < scr->workspace_count; i++) {
 977             wKWMSetUsableAreaHint(scr, i);
 978         }
 979     }
 980 #endif
 981 #endif
 982 }
 983
 984
 985 void
 986 wScreenRestoreState(WScreen *scr)
 987 {
 988     proplist_t state;
 989     char *path;
 990
 991
 992 #ifndef LITE
 993     OpenRootMenu(scr, -10000, -10000, False);
 994     wMenuUnmap(scr->root_menu);
 995 #endif
 996
 997     make_keys();
 998
 999     if (wScreenCount == 1)
1000         path = wdefaultspathfordomain("WMState");
1001     else {
1002         char buf[16];
1003         sprintf(buf, "WMState.%i", scr->screen);
1004         path = wdefaultspathfordomain(buf);
1005     }
1006     scr->session_state = PLGetProplistWithPath(path);
1007     free(path);
1008     if (!scr->session_state && wScreenCount>1) {
1009         char buf[16];
1010         sprintf(buf, "WMState.%i", scr->screen);
1011         path = wdefaultspathfordomain(buf);
1012         scr->session_state = PLGetProplistWithPath(path);
1013         free(path);
1014     }
1015
1016     if (!wPreferences.flags.noclip) {
1017         state = PLGetDictionaryEntry(scr->session_state, dClip);
1018         scr->clip_icon = wClipRestoreState(scr, state);
1019     }
1020
1021     wWorkspaceRestoreState(scr);
1022
1023 #ifdef VIRTUAL_DESKTOP
1024         /*
1025          *      * create inputonly windows at the border of screen
1026          *           */
1027         wWorkspaceManageEdge(scr);
1028 #endif
1029
1030     if (!wPreferences.flags.nodock) {
1031         state = PLGetDictionaryEntry(scr->session_state, dDock);
1032         scr->dock = wDockRestoreState(scr, state, WM_DOCK);
1033     }
1034
1035     wScreenUpdateUsableArea(scr);
1036 }
1037
1038
1039 void
1040 wScreenSaveState(WScreen *scr)
1041 {
1042     WWorkspaceState wstate;
1043     WWindow *wwin;
1044     char *str;
1045     proplist_t path, old_state, foo;
1046     CARD32 data[2];
1047
1048
1049     make_keys();
1050
1051 /*
1052  * Save current workspace, so can go back to it upon restart.
1053  */
1054     wstate.workspace = scr->current_workspace;
1055
1056     data[0] = wstate.flags;
1057     data[1] = wstate.workspace;
1058
1059     XChangeProperty(dpy, scr->root_win, _XA_WINDOWMAKER_STATE,
1060                     _XA_WINDOWMAKER_STATE, 32, PropModeReplace,
1061                     (unsigned char *) data, 2);
1062
1063     /* save state of windows */
1064     wwin = scr->focused_window;
1065     while (wwin) {
1066         wWindowSaveState(wwin);
1067         wwin = wwin->prev;
1068     }
1069
1070
1071     if (wPreferences.flags.noupdates)
1072         return;
1073
1074
1075     old_state = scr->session_state;
1076     scr->session_state = PLMakeDictionaryFromEntries(NULL, NULL, NULL);
1077
1078     PLSetStringCmpHook(NULL);
1079
1080     /* save dock state to file */
1081     if (!wPreferences.flags.nodock) {
1082         wDockSaveState(scr, old_state);
1083     } else {
1084         if ((foo = PLGetDictionaryEntry(old_state, dDock))!=NULL) {
1085             PLInsertDictionaryEntry(scr->session_state, dDock, foo);
1086         }
1087     }
1088     if (!wPreferences.flags.noclip) {
1089         wClipSaveState(scr);
1090     } else {
1091         if ((foo = PLGetDictionaryEntry(old_state, dClip))!=NULL) {
1092             PLInsertDictionaryEntry(scr->session_state, dClip, foo);
1093         }
1094     }
1095
1096     wWorkspaceSaveState(scr, old_state);
1097
1098     if (wPreferences.save_session_on_exit) {
1099         wSessionSaveState(scr);
1100     } else {
1101         if ((foo = PLGetDictionaryEntry(old_state, dApplications))!=NULL) {
1102             PLInsertDictionaryEntry(scr->session_state, dApplications, foo);
1103         }
1104         if ((foo = PLGetDictionaryEntry(old_state, dWorkspace))!=NULL) {
1105             PLInsertDictionaryEntry(scr->session_state, dWorkspace, foo);
1106         }
1107     }
1108
1109     /* clean up */
1110     PLSetStringCmpHook(StringCompareHook);
1111
1112     wMenuSaveState(scr);
1113
1114     if (wScreenCount == 1)
1115         str = wdefaultspathfordomain("WMState");
1116     else {
1117         char buf[16];
1118         sprintf(buf, "WMState.%i", scr->screen);
1119         str = wdefaultspathfordomain(buf);
1120     }
1121     path = PLMakeString(str);
1122     free(str);
1123     PLSetFilename(scr->session_state, path);
1124     if (!PLSave(scr->session_state, YES)) {
1125         wsyserror(_("could not save session state in %s"), PLGetString(path));
1126     }
1127     PLRelease(path);
1128     PLRelease(old_state);
1129 }
1130
1131
1132
1133 int
1134 wScreenBringInside(WScreen *scr, int *x, int *y, int width, int height)
1135 {
1136     int moved = 0;
1137     int tol_w, tol_h;
1138
1139     if (width > 20)
1140         tol_w = width/2;
1141     else
1142         tol_w = 20;
1143
1144     if (height > 20)
1145         tol_h = height/2;
1146     else
1147         tol_h = 20;
1148
1149     if (*x+width < 10)
1150         *x = -tol_w, moved = 1;
1151     else if (*x >= scr->scr_width - 10)
1152         *x = scr->scr_width - tol_w - 1, moved = 1;
1153
1154     if (*y < -height + 10)
1155         *y = -tol_h, moved = 1;
1156     else if (*y >= scr->scr_height - 10)
1157         *y = scr->scr_height - tol_h - 1, moved = 1;
1158
1159     return moved;
1160 }
1161
1162