src/screen.c

   1 /* screen.c - screen management
   2  *
   3  *  Window Maker window manager
   4  *
   5  *  Copyright (c) 1997-2002 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 <WINGs/WUtil.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 WMPropList *dApplications = NULL;
 108 static WMPropList *dWorkspace;
 109 static WMPropList *dDock;
 110 static WMPropList *dClip;
 111
 112
 113 static void
 114 make_keys()
 115 {
 116     if (dApplications!=NULL)
 117         return;
 118
 119     dApplications = WMCreatePLString("Applications");
 120     dWorkspace = WMCreatePLString("Workspace");
 121     dDock = WMCreatePLString("Dock");
 122     dClip = WMCreatePLString("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     RImage *image;
 406
 407     /* load pixmaps */
 408     pix = wPixmapCreateFromXBMData(scr, (char*)MENU_RADIO_INDICATOR_XBM_DATA,
 409                                    (char*)MENU_RADIO_INDICATOR_XBM_DATA,
 410                                    MENU_RADIO_INDICATOR_XBM_SIZE,
 411                                    MENU_RADIO_INDICATOR_XBM_SIZE,
 412                                    scr->black_pixel, scr->white_pixel);
 413     if (pix!=NULL)
 414         pix->shared = 1;
 415     scr->menu_radio_indicator = pix;
 416
 417
 418     pix = wPixmapCreateFromXBMData(scr, (char*)MENU_CHECK_INDICATOR_XBM_DATA,
 419                                    (char*)MENU_CHECK_INDICATOR_XBM_DATA,
 420                                    MENU_CHECK_INDICATOR_XBM_SIZE,
 421                                    MENU_CHECK_INDICATOR_XBM_SIZE,
 422                                    scr->black_pixel, scr->white_pixel);
 423     if (pix!=NULL)
 424         pix->shared = 1;
 425     scr->menu_check_indicator = pix;
 426
 427     pix = wPixmapCreateFromXBMData(scr, (char*)MENU_MINI_INDICATOR_XBM_DATA,
 428                                    (char*)MENU_MINI_INDICATOR_XBM_DATA,
 429                                    MENU_MINI_INDICATOR_XBM_SIZE,
 430                                    MENU_MINI_INDICATOR_XBM_SIZE,
 431                                    scr->black_pixel, scr->white_pixel);
 432     if (pix!=NULL)
 433         pix->shared = 1;
 434     scr->menu_mini_indicator = pix;
 435
 436     pix = wPixmapCreateFromXBMData(scr, (char*)MENU_HIDE_INDICATOR_XBM_DATA,
 437                                    (char*)MENU_HIDE_INDICATOR_XBM_DATA,
 438                                    MENU_HIDE_INDICATOR_XBM_SIZE,
 439                                    MENU_HIDE_INDICATOR_XBM_SIZE,
 440                                    scr->black_pixel, scr->white_pixel);
 441     if (pix!=NULL)
 442         pix->shared = 1;
 443     scr->menu_hide_indicator = pix;
 444
 445     pix = wPixmapCreateFromXBMData(scr, (char*)MENU_SHADE_INDICATOR_XBM_DATA,
 446                                    (char*)MENU_SHADE_INDICATOR_XBM_DATA,
 447                                    MENU_SHADE_INDICATOR_XBM_SIZE,
 448                                    MENU_SHADE_INDICATOR_XBM_SIZE,
 449                                    scr->black_pixel, scr->white_pixel);
 450     if (pix!=NULL)
 451         pix->shared = 1;
 452     scr->menu_shade_indicator = pix;
 453
 454
 455     image = wDefaultGetImage(scr, "Logo", "WMPanel");
 456
 457     if (!image) {
 458         wwarning(_("could not load logo image for panels: %s"),
 459                  RMessageForError(RErrorCode));
 460     } else {
 461         WMSetApplicationIconImage(scr->wmscreen, image);
 462         RReleaseImage(image);
 463     }
 464
 465     scr->dock_dots = make3Dots(scr);
 466
 467     /* titlebar button pixmaps */
 468     allocButtonPixmaps(scr);
 469 }
 470
 471
 472 /*
 473  *----------------------------------------------------------------------
 474  * createInternalWindows--
 475  *      Creates some windows used internally by the program. One to
 476  * receive input focus when no other window can get it and another
 477  * to display window geometry information during window resize/move.
 478  *
 479  * Returns:
 480  *      Nothing
 481  *
 482  * Side effects:
 483  *      Windows are created and some colors are allocated for the
 484  * window background.
 485  *----------------------------------------------------------------------
 486  */
 487 static void
 488 createInternalWindows(WScreen *scr)
 489 {
 490     int vmask;
 491     XSetWindowAttributes attribs;
 492
 493     /* InputOnly window to get the focus when no other window can get it */
 494     vmask = CWEventMask|CWOverrideRedirect;
 495     attribs.event_mask = KeyPressMask|FocusChangeMask;
 496     attribs.override_redirect = True;
 497     scr->no_focus_win=XCreateWindow(dpy,scr->root_win,-10, -10, 4, 4, 0, 0,
 498                                     InputOnly,CopyFromParent, vmask, &attribs);
 499     XSelectInput(dpy, scr->no_focus_win, KeyPressMask|KeyReleaseMask);
 500     XMapWindow(dpy, scr->no_focus_win);
 501
 502     XSetInputFocus(dpy, scr->no_focus_win, RevertToParent, CurrentTime);
 503
 504     /* shadow window for dock buttons */
 505     vmask = CWBorderPixel|CWBackPixmap|CWBackPixel|CWCursor|CWSaveUnder|CWOverrideRedirect;
 506     attribs.border_pixel = scr->black_pixel;
 507     attribs.save_under = True;
 508     attribs.override_redirect = True;
 509     attribs.background_pixmap = None;
 510     attribs.background_pixel = scr->white_pixel;
 511     attribs.cursor = wCursor[WCUR_DEFAULT];
 512     vmask |= CWColormap;
 513     attribs.colormap = scr->w_colormap;
 514     scr->dock_shadow =
 515       XCreateWindow(dpy, scr->root_win, 0, 0, wPreferences.icon_size,
 516                     wPreferences.icon_size, 0, scr->w_depth, CopyFromParent,
 517                     scr->w_visual, vmask, &attribs);
 518
 519     /* workspace name balloon for clip */
 520     vmask = CWBackPixel|CWSaveUnder|CWOverrideRedirect|CWColormap
 521         |CWBorderPixel;
 522     attribs.save_under = True;
 523     attribs.override_redirect = True;
 524     attribs.colormap = scr->w_colormap;
 525     attribs.background_pixel = scr->icon_back_texture->normal.pixel;
 526     attribs.border_pixel = 0; /* do not care */
 527     scr->clip_balloon =
 528       XCreateWindow(dpy, scr->root_win, 0, 0, 10, 10, 0, scr->w_depth,
 529                     CopyFromParent, scr->w_visual, vmask, &attribs);
 530
 531
 532     /* workspace name */
 533     vmask = CWBackPixel|CWSaveUnder|CWOverrideRedirect|CWColormap
 534         |CWBorderPixel;
 535     attribs.save_under = True;
 536     attribs.override_redirect = True;
 537     attribs.colormap = scr->w_colormap;
 538     attribs.background_pixel = scr->icon_back_texture->normal.pixel;
 539     attribs.border_pixel = 0; /* do not care */
 540     scr->workspace_name =
 541       XCreateWindow(dpy, scr->root_win, 0, 0, 10, 10, 0, scr->w_depth,
 542                     CopyFromParent, scr->w_visual, vmask, &attribs);
 543
 544     /*
 545      * If the window is clicked without having ButtonPress selected, the
 546      * resulting event will have event.xbutton.window == root.
 547      */
 548     XSelectInput(dpy, scr->clip_balloon, ButtonPressMask);
 549 }
 550
 551
 552 #if 0
 553 static Bool
 554 aquireManagerSelection(WScreen *scr)
 555 {
 556     char buffer[32];
 557     XEvent ev;
 558     Time timestamp;
 559
 560     snprintf(buffer, sizeof(buffer), "WM_S%i", scr->screen);
 561     scr->managerAtom = XInternAtom(dpy, buffer, False);
 562
 563     /* for race-conditions... */
 564     XGrabServer(dpy);
 565
 566     /* if there is another manager running, don't try to replace it
 567      * (for now, at least) */
 568     if (XGetSelectionOwner(dpy, scr->managerAtom) != None) {
 569         XUngrabServer(dpy);
 570         return False;
 571     }
 572
 573     /* become the manager for this screen */
 574
 575     scr->managerWindow = XCreateSimpleWindow(dpy, scr->root_win, 0, 0, 1, 1,
 576                                              0, 0, 0);
 577
 578     XSelectInput(dpy, scr->managerWindow, PropertyChangeMask);
 579     /* get a timestamp */
 580     XChangeProperty(dpy, scr->managerWindow, scr->managerAtom,
 581                     XA_INTEGER, 32, PropModeAppend, NULL, 0);
 582     while (1) {
 583         XWindowEvent(dpy, scr->managerWindow, &ev);
 584         if (ev.type == PropertyNotify) {
 585             timestamp = ev.xproperty.time;
 586             break;
 587         }
 588     }
 589     XSelectInput(dpy, scr->managerWindow, NoEvents);
 590     XDeleteProperty(dpy, scr->managerWindow, scr->managerAtom);
 591
 592     XSetSelectionOwner(dpy, scr->managerAtom, scr->managerWindow, CurrentTime);
 593
 594     XUngrabServer(dpy);
 595
 596     /* announce our arrival */
 597
 598     ev.xclient.type = ClientMessage;
 599     ev.xclient.message_type = XInternAtom(dpy, "MANAGER", False);
 600     ev.xclient.destination = scr->root_win;
 601     ev.xclient.format = 32;
 602     ev.xclient.data.l[0] = timestamp;
 603     ev.xclient.data.l[1] = scr->managerAtom;
 604     ev.xclient.data.l[2] = scr->managerWindow;
 605     ev.xclient.data.l[3] = 0;
 606     ev.xclient.data.l[4] = 0;
 607
 608     XSendEvent(dpy, scr->root_win, False, StructureNotify, &ev);
 609     XSync(dpy, False);
 610
 611     return True;
 612 }
 613 #endif
 614
 615 /*
 616  *----------------------------------------------------------------------
 617  * wScreenInit--
 618  *      Initializes the window manager for the given screen and
 619  * allocates a WScreen descriptor for it. Many resources are allocated
 620  * for the screen and the root window is setup appropriately.
 621  *
 622  * Returns:
 623  *      The WScreen descriptor for the screen.
 624  *
 625  * Side effects:
 626  *      Many resources are allocated and the IconSize property is
 627  * set on the root window.
 628  *      The program can be aborted if some fatal error occurs.
 629  *
 630  * TODO: User specifiable visual.
 631  *----------------------------------------------------------------------
 632  */
 633 WScreen*
 634 wScreenInit(int screen_number)
 635 {
 636     WScreen *scr;
 637     XIconSize icon_size[1];
 638     RContextAttributes rattr;
 639     extern int wVisualID;
 640     long event_mask;
 641     WMColor *color;
 642     XErrorHandler oldHandler;
 643
 644     scr = wmalloc(sizeof(WScreen));
 645     memset(scr, 0, sizeof(WScreen));
 646
 647     scr->stacking_list = WMCreateTreeBag();
 648
 649     /* initialize globals */
 650     scr->screen = screen_number;
 651     scr->root_win = RootWindow(dpy, screen_number);
 652     scr->depth = DefaultDepth(dpy, screen_number);
 653     scr->colormap = DefaultColormap(dpy, screen_number);
 654
 655     scr->scr_width = WidthOfScreen(ScreenOfDisplay(dpy, screen_number));
 656     scr->scr_height = HeightOfScreen(ScreenOfDisplay(dpy, screen_number));
 657
 658     scr->usableArea.x2 = scr->scr_width;
 659     scr->usableArea.y2 = scr->scr_height;
 660     scr->totalUsableArea.x2 = scr->scr_width;
 661     scr->totalUsableArea.y2 = scr->scr_height;
 662
 663     scr->fakeGroupLeaders = WMCreateArray(16);
 664
 665 #if 0
 666     if (!aquireManagerSelection(scr)) {
 667         wfree(scr);
 668
 669         return NULL;
 670     }
 671 #endif
 672     CantManageScreen = 0;
 673     oldHandler = XSetErrorHandler((XErrorHandler)alreadyRunningError);
 674
 675     event_mask = EVENT_MASK;
 676
 677     if (wPreferences.disable_root_mouse) {
 678         event_mask &= ~(ButtonPressMask|ButtonReleaseMask);
 679     }
 680
 681     XSelectInput(dpy, scr->root_win, event_mask);
 682
 683 #ifdef KEEP_XKB_LOCK_STATUS
 684     /* Only GroupLock doesn't work correctly in my system since right-alt
 685      * can change mode while holding it too - ]d
 686      */
 687     if (wXkbSupported) {
 688         XkbSelectEvents(dpy,XkbUseCoreKbd,
 689                 XkbStateNotifyMask,
 690                 XkbStateNotifyMask);
 691     }
 692 #endif /* KEEP_XKB_LOCK_STATUS */
 693
 694     XSync(dpy, False);
 695     XSetErrorHandler(oldHandler);
 696
 697     if (CantManageScreen) {
 698         wfree(scr);
 699         return NULL;
 700     }
 701
 702     XDefineCursor(dpy, scr->root_win, wCursor[WCUR_ROOT]);
 703
 704     /* screen descriptor for raster graphic library */
 705     rattr.flags = RC_RenderMode | RC_ColorsPerChannel | RC_StandardColormap;
 706     rattr.render_mode = wPreferences.no_dithering
 707                                 ? RBestMatchRendering
 708                                 : RDitheredRendering;
 709
 710     /* if the std colormap stuff works ok, this will be ignored */
 711     rattr.colors_per_channel = wPreferences.cmap_size;
 712     if (rattr.colors_per_channel<2)
 713         rattr.colors_per_channel = 2;
 714
 715
 716     /* will only be accounted for in PseudoColor */
 717     if (wPreferences.flags.create_stdcmap) {
 718         rattr.standard_colormap_mode = RCreateStdColormap;
 719     } else {
 720         rattr.standard_colormap_mode = RUseStdColormap;
 721     }
 722
 723     if (wVisualID>=0) {
 724         rattr.flags |= RC_VisualID;
 725         rattr.visualid = wVisualID;
 726     }
 727
 728     scr->rcontext = RCreateContext(dpy, screen_number, &rattr);
 729
 730     if (!scr->rcontext && RErrorCode == RERR_STDCMAPFAIL) {
 731         wwarning(RMessageForError(RErrorCode));
 732
 733         rattr.flags &= ~RC_StandardColormap;
 734         rattr.standard_colormap_mode = RUseStdColormap;
 735
 736         scr->rcontext = RCreateContext(dpy, screen_number, &rattr);
 737     }
 738
 739     if (!scr->rcontext) {
 740         wwarning(_("could not initialize graphics library context: %s"),
 741                  RMessageForError(RErrorCode));
 742         wAbort(False);
 743     } else {
 744         char **formats;
 745         int i = 0;
 746
 747         formats = RSupportedFileFormats();
 748         if (formats) {
 749             for (i=0; formats[i]!=NULL; i++) {
 750                 if (strcmp(formats[i], "TIFF")==0) {
 751                     scr->flags.supports_tiff = 1;
 752                     break;
 753                 }
 754             }
 755         }
 756     }
 757
 758     scr->w_win = scr->rcontext->drawable;
 759     scr->w_visual = scr->rcontext->visual;
 760     scr->w_depth = scr->rcontext->depth;
 761     scr->w_colormap = scr->rcontext->cmap;
 762
 763     scr->black_pixel = scr->rcontext->black;
 764     scr->white_pixel = scr->rcontext->white;
 765
 766     /* create screen descriptor for WINGs */
 767     scr->wmscreen = WMCreateScreenWithRContext(dpy, screen_number,
 768                                                scr->rcontext);
 769
 770     if (!scr->wmscreen) {
 771         wfatal(_("could not do initialization of WINGs widget set"));
 772
 773         return NULL;
 774     }
 775
 776     color = WMGrayColor(scr->wmscreen);
 777     scr->light_pixel = WMColorPixel(color);
 778     WMReleaseColor(color);
 779
 780     color = WMDarkGrayColor(scr->wmscreen);
 781     scr->dark_pixel = WMColorPixel(color);
 782     WMReleaseColor(color);
 783
 784     {
 785         XColor xcol;
 786         /* frame boder color */
 787         wGetColor(scr, FRAME_BORDER_COLOR, &xcol);
 788         scr->frame_border_pixel = xcol.pixel;
 789     }
 790
 791     /* create GCs with default values */
 792     allocGCs(scr);
 793
 794
 795     /* for our window manager info notice board. Need to
 796      * create before reading the defaults, because it will be used there.
 797      */
 798     scr->info_window = XCreateSimpleWindow(dpy, scr->root_win, 0, 0, 10, 10,
 799                                            0, 0, 0);
 800
 801     /* read defaults for this screen */
 802     wReadDefaults(scr, WDWindowMaker->dictionary);
 803
 804     createInternalWindows(scr);
 805
 806 #ifdef KWM_HINTS
 807     wKWMInitStuff(scr);
 808 #endif
 809
 810 #ifdef GNOME_STUFF
 811     wGNOMEInitStuff(scr);
 812 #endif
 813
 814 #ifdef OLWM_HINTS
 815     wOLWMInitStuff(scr);
 816 #endif
 817
 818     /* create initial workspace */
 819     wWorkspaceNew(scr);
 820
 821     /* create shared pixmaps */
 822     createPixmaps(scr);
 823
 824     /* set icon sizes we can accept from clients */
 825     icon_size[0].min_width = 8;
 826     icon_size[0].min_height = 8;
 827     icon_size[0].max_width = wPreferences.icon_size-4;
 828     icon_size[0].max_height = wPreferences.icon_size-4;
 829     icon_size[0].width_inc = 1;
 830     icon_size[0].height_inc = 1;
 831     XSetIconSizes(dpy, scr->root_win, icon_size, 1);
 832
 833     /* setup WindowMaker protocols property in the root window*/
 834     PropSetWMakerProtocols(scr->root_win);
 835
 836     /* setup our noticeboard */
 837     XChangeProperty(dpy, scr->info_window, _XA_WINDOWMAKER_NOTICEBOARD,
 838                     XA_WINDOW, 32, PropModeReplace,
 839                     (unsigned char*)&scr->info_window, 1);
 840     XChangeProperty(dpy, scr->root_win, _XA_WINDOWMAKER_NOTICEBOARD,
 841                     XA_WINDOW, 32, PropModeReplace,
 842                     (unsigned char*)&scr->info_window, 1);
 843
 844
 845 #ifdef BALLOON_TEXT
 846     /* initialize balloon text stuff */
 847     wBalloonInitialize(scr);
 848 #endif
 849
 850     scr->info_text_font = WMBoldSystemFontOfSize(scr->wmscreen, 12);
 851
 852
 853     scr->gview = WCreateGeometryView(scr->wmscreen);
 854     WMRealizeWidget(scr->gview);
 855
 856     wScreenUpdateUsableArea(scr);
 857
 858     return scr;
 859 }
 860
 861
 862
 863 static WArea subtractRectangle(WArea area, WArea rect)
 864 {
 865     WArea result = area;
 866
 867
 868 }
 869
 870
 871 void
 872 wScreenUpdateUsableArea(WScreen *scr)
 873 {
 874     WReservedArea *area;
 875
 876     scr->totalUsableArea = scr->usableArea;
 877
 878
 879     if (scr->dock && (!scr->dock->lowered
 880                       || wPreferences.no_window_over_dock)) {
 881
 882         int offset = wPreferences.icon_size + DOCK_EXTRA_SPACE;
 883
 884         if (scr->dock->on_right_side) {
 885             scr->totalUsableArea.x2 = WMIN(scr->totalUsableArea.x2,
 886                                           scr->scr_width - offset);
 887         } else {
 888             scr->totalUsableArea.x1 = WMAX(scr->totalUsableArea.x1, offset);
 889         }
 890     }
 891
 892     if (wPreferences.no_window_over_icons) {
 893         if (wPreferences.icon_yard & IY_VERT) {
 894
 895             if (!(wPreferences.icon_yard & IY_RIGHT)) {
 896                 scr->totalUsableArea.x1 += wPreferences.icon_size;
 897             } else {
 898                 scr->totalUsableArea.x2 -= wPreferences.icon_size;
 899             }
 900         } else {
 901
 902             if (wPreferences.icon_yard & IY_TOP) {
 903                 scr->totalUsableArea.y1 += wPreferences.icon_size;
 904             } else {
 905                 scr->totalUsableArea.y2 -= wPreferences.icon_size;
 906             }
 907         }
 908     }
 909
 910 #ifdef KWM_HINTS
 911     {
 912         WArea area;
 913
 914         if (wKWMGetUsableArea(scr, &area)) {
 915             scr->totalUsableArea.x1 = WMAX(scr->totalUsableArea.x1, area.x1);
 916             scr->totalUsableArea.y1 = WMAX(scr->totalUsableArea.y1, area.y1);
 917             scr->totalUsableArea.x2 = WMIN(scr->totalUsableArea.x2, area.x2);
 918             scr->totalUsableArea.y2 = WMIN(scr->totalUsableArea.y2, area.y2);
 919         }
 920     }
 921 #endif
 922
 923 #ifdef GNOME_STUFF
 924     area = scr->reservedAreas;
 925
 926     while (area) {
 927         int th, bh;
 928         int lw, rw;
 929         int w, h;
 930
 931         w = area->area.x2 - area->area.x1;
 932         h = area->area.y2 - area->area.y1;
 933
 934         th = area->area.y1;
 935         bh = scr->scr_height - area->area.y2;
 936         lw = area->area.x1;
 937         rw = scr->scr_width - area->area.x2;
 938
 939         if (WMIN(th, bh) <= WMIN(lw, rw)) {
 940             /* horizontal */
 941             if (th < bh) {
 942                 /* on top */
 943                 if (scr->totalUsableArea.y1 < area->area.y2)
 944                     scr->totalUsableArea.y1 = area->area.y2;
 945             } else {
 946                 /* on bottom */
 947                 if (scr->totalUsableArea.y2 > area->area.y1)
 948                     scr->totalUsableArea.y2 = area->area.y1;
 949             }
 950         } else {
 951             /* vertical */
 952             if (lw < rw) {
 953                 /* on left */
 954                 if (scr->totalUsableArea.x1 < area->area.x2)
 955                     scr->totalUsableArea.x1 = area->area.x2;
 956             } else {
 957                 /* on right */
 958                 if (scr->totalUsableArea.x2 > area->area.x1)
 959                     scr->totalUsableArea.x2 = area->area.x1;
 960             }
 961         }
 962
 963         area = area->next;
 964     }
 965 #endif /* GNOME_STUFF */
 966
 967     if (scr->totalUsableArea.x2 - scr->totalUsableArea.x1 < scr->scr_width/2) {
 968         scr->totalUsableArea.x2 = scr->usableArea.x2;
 969         scr->totalUsableArea.x1 = scr->usableArea.x1;
 970     }
 971     if (scr->totalUsableArea.y2 - scr->totalUsableArea.y1 < scr->scr_height/2) {
 972         scr->totalUsableArea.y2 = scr->usableArea.y2;
 973         scr->totalUsableArea.y1 = scr->usableArea.y1;
 974     }
 975
 976 #ifdef not_used
 977 #ifdef KWM_HINTS
 978     {
 979         int i;
 980
 981         for (i = 0; i < scr->workspace_count; i++) {
 982             wKWMSetUsableAreaHint(scr, i);
 983         }
 984     }
 985 #endif
 986 #endif
 987
 988     {
 989         unsigned size = wPreferences.workspace_border_size;
 990         unsigned position = wPreferences.workspace_border_position;
 991
 992         if (size>0 && position!=WB_NONE) {
 993             if (position & WB_LEFTRIGHT) {
 994                 scr->totalUsableArea.x1 += size;
 995                 scr->totalUsableArea.x2 -= size;
 996             }
 997             if (position & WB_TOPBOTTOM) {
 998                 scr->totalUsableArea.y1 += size;
 999                 scr->totalUsableArea.y2 -= size;
1000             }
1001         }
1002     }
1003
1004 }
1005
1006
1007 void
1008 wScreenRestoreState(WScreen *scr)
1009 {
1010     WMPropList *state;
1011     char *path;
1012
1013
1014 #ifndef LITE
1015     OpenRootMenu(scr, -10000, -10000, False);
1016     wMenuUnmap(scr->root_menu);
1017 #endif
1018
1019     make_keys();
1020
1021     if (wScreenCount == 1) {
1022         path = wdefaultspathfordomain("WMState");
1023     } else {
1024         char buf[16];
1025         snprintf(buf, sizeof(buf), "WMState.%i", scr->screen);
1026         path = wdefaultspathfordomain(buf);
1027     }
1028     scr->session_state = WMReadPropListFromFile(path);
1029     wfree(path);
1030     if (!scr->session_state && wScreenCount>1) {
1031         path = wdefaultspathfordomain("WMState");
1032         scr->session_state = WMReadPropListFromFile(path);
1033         wfree(path);
1034     }
1035
1036     if (!wPreferences.flags.noclip && scr->session_state) {
1037         state = WMGetFromPLDictionary(scr->session_state, dClip);
1038         scr->clip_icon = wClipRestoreState(scr, state);
1039     }
1040
1041     wWorkspaceRestoreState(scr);
1042
1043 #ifdef VIRTUAL_DESKTOP
1044         /*
1045          *      * create inputonly windows at the border of screen
1046          *           */
1047         wWorkspaceManageEdge(scr);
1048 #endif
1049
1050     if (!wPreferences.flags.nodock && scr->session_state) {
1051         state = WMGetFromPLDictionary(scr->session_state, dDock);
1052         scr->dock = wDockRestoreState(scr, state, WM_DOCK);
1053     }
1054
1055     wScreenUpdateUsableArea(scr);
1056 }
1057
1058
1059 void
1060 wScreenSaveState(WScreen *scr)
1061 {
1062     WWindow *wwin;
1063     char *str;
1064     WMPropList *old_state, *foo;
1065     CARD32 data[2];
1066
1067
1068     make_keys();
1069
1070     /* Save current workspace, so can go back to it upon restart. */
1071     data[0] = scr->current_workspace;
1072     data[1] = WFLAGS_NONE;
1073
1074     XChangeProperty(dpy, scr->root_win, _XA_WINDOWMAKER_STATE,
1075                     _XA_WINDOWMAKER_STATE, 32, PropModeReplace,
1076                     (unsigned char *) data, 2);
1077
1078     /* save state of windows */
1079     wwin = scr->focused_window;
1080     while (wwin) {
1081         wWindowSaveState(wwin);
1082         wwin = wwin->prev;
1083     }
1084
1085
1086     if (wPreferences.flags.noupdates)
1087         return;
1088
1089
1090     old_state = scr->session_state;
1091     scr->session_state = WMCreatePLDictionary(NULL, NULL, NULL);
1092
1093     WMPLSetCaseSensitive(True);
1094
1095     /* save dock state to file */
1096     if (!wPreferences.flags.nodock) {
1097         wDockSaveState(scr, old_state);
1098     } else {
1099         if ((foo = WMGetFromPLDictionary(old_state, dDock))!=NULL) {
1100             WMPutInPLDictionary(scr->session_state, dDock, foo);
1101         }
1102     }
1103     if (!wPreferences.flags.noclip) {
1104         wClipSaveState(scr);
1105     } else {
1106         if ((foo = WMGetFromPLDictionary(old_state, dClip))!=NULL) {
1107             WMPutInPLDictionary(scr->session_state, dClip, foo);
1108         }
1109     }
1110
1111     wWorkspaceSaveState(scr, old_state);
1112
1113     if (wPreferences.save_session_on_exit) {
1114         wSessionSaveState(scr);
1115     } else {
1116         if ((foo = WMGetFromPLDictionary(old_state, dApplications))!=NULL) {
1117             WMPutInPLDictionary(scr->session_state, dApplications, foo);
1118         }
1119         if ((foo = WMGetFromPLDictionary(old_state, dWorkspace))!=NULL) {
1120             WMPutInPLDictionary(scr->session_state, dWorkspace, foo);
1121         }
1122     }
1123
1124     /* clean up */
1125     WMPLSetCaseSensitive(False);
1126
1127     wMenuSaveState(scr);
1128
1129     if (wScreenCount == 1)
1130         str = wdefaultspathfordomain("WMState");
1131     else {
1132         char buf[16];
1133         snprintf(buf, sizeof(buf), "WMState.%i", scr->screen);
1134         str = wdefaultspathfordomain(buf);
1135     }
1136     if (!WMWritePropListToFile(scr->session_state, str, True)) {
1137         wsyserror(_("could not save session state in %s"), str);
1138     }
1139     wfree(str);
1140     WMReleasePropList(old_state);
1141 }
1142
1143
1144
1145 int
1146 wScreenBringInside(WScreen *scr, int *x, int *y, int width, int height)
1147 {
1148     int moved = 0;
1149     int tol_w, tol_h;
1150
1151     if (width > 20)
1152         tol_w = width/2;
1153     else
1154         tol_w = 20;
1155
1156     if (height > 20)
1157         tol_h = height/2;
1158     else
1159         tol_h = 20;
1160
1161     if (*x+width < 10)
1162         *x = -tol_w, moved = 1;
1163     else if (*x >= scr->scr_width - 10)
1164         *x = scr->scr_width - tol_w - 1, moved = 1;
1165
1166     if (*y < -height + 10)
1167         *y = -tol_h, moved = 1;
1168     else if (*y >= scr->scr_height - 10)
1169         *y = scr->scr_height - tol_h - 1, moved = 1;
1170
1171     return moved;
1172 }
1173
1174