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 "xinerama.h"
  67
  68 #include <WINGs/WUtil.h>
  69
  70 #include "defaults.h"
  71
  72
  73 #ifdef LITE
  74 #define EVENT_MASK (LeaveWindowMask|EnterWindowMask|PropertyChangeMask\
  75                 |SubstructureNotifyMask|PointerMotionMask \
  76                 |SubstructureRedirectMask|KeyPressMask|KeyReleaseMask)
  77 #else
  78 #define EVENT_MASK (LeaveWindowMask|EnterWindowMask|PropertyChangeMask\
  79                 |SubstructureNotifyMask|PointerMotionMask \
  80                 |SubstructureRedirectMask|ButtonPressMask|ButtonReleaseMask\
  81                 |KeyPressMask|KeyReleaseMask)
  82 #endif
  83
  84 /**** Global variables ****/
  85
  86 extern Cursor wCursor[WCUR_LAST];
  87 extern WPreferences wPreferences;
  88 extern Atom _XA_WINDOWMAKER_STATE;
  89 extern Atom _XA_WINDOWMAKER_NOTICEBOARD;
  90
  91
  92 extern int wScreenCount;
  93
  94 #ifdef KEEP_XKB_LOCK_STATUS
  95 extern int wXkbSupported;
  96 #endif
  97
  98 extern WDDomain *WDWindowMaker;
  99
 100
 101 /**** Local ****/
 102
 103 #define STIPPLE_WIDTH 2
 104 #define STIPPLE_HEIGHT 2
 105 static char STIPPLE_DATA[] = {0x02, 0x01};
 106
 107 static int CantManageScreen = 0;
 108
 109 static WMPropList *dApplications = NULL;
 110 static WMPropList *dWorkspace;
 111 static WMPropList *dDock;
 112 static WMPropList *dClip;
 113
 114
 115 static void
 116 make_keys()
 117 {
 118     if (dApplications!=NULL)
 119         return;
 120
 121     dApplications = WMCreatePLString("Applications");
 122     dWorkspace = WMCreatePLString("Workspace");
 123     dDock = WMCreatePLString("Dock");
 124     dClip = WMCreatePLString("Clip");
 125 }
 126
 127
 128 /*
 129  *----------------------------------------------------------------------
 130  * alreadyRunningError--
 131  *      X error handler used to catch errors when trying to do
 132  * XSelectInput() on the root window. These errors probably mean that
 133  * there already is some other window manager running.
 134  *
 135  * Returns:
 136  *      Nothing, unless something really evil happens...
 137  *
 138  * Side effects:
 139  *      CantManageScreen is set to 1;
 140  *----------------------------------------------------------------------
 141  */
 142 static int
 143 alreadyRunningError(Display *dpy, XErrorEvent *error)
 144 {
 145     CantManageScreen = 1;
 146     return -1;
 147 }
 148
 149
 150 /*
 151  *----------------------------------------------------------------------
 152  * allocButtonPixmaps--
 153  *      Allocate pixmaps used on window operation buttons (those in the
 154  * titlebar). The pixmaps are linked to the program. If XPM is supported
 155  * XPM pixmaps are used otherwise, equivalent bitmaps are used.
 156  *
 157  * Returns:
 158  *      Nothing
 159  *
 160  * Side effects:
 161  *      Allocates shared pixmaps for the screen. These pixmaps should
 162  * not be freed by anybody.
 163  *----------------------------------------------------------------------
 164  */
 165 static void
 166 allocButtonPixmaps(WScreen *scr)
 167 {
 168     WPixmap *pix;
 169
 170     /* create predefined pixmaps */
 171     pix = wPixmapCreateFromXPMData(scr, PRED_CLOSE_XPM);
 172     if (pix)
 173       pix->shared = 1;
 174     scr->b_pixmaps[WBUT_CLOSE] = pix;
 175
 176     pix = wPixmapCreateFromXPMData(scr, PRED_BROKEN_CLOSE_XPM);
 177     if (pix)
 178       pix->shared = 1;
 179     scr->b_pixmaps[WBUT_BROKENCLOSE] = pix;
 180
 181     pix = wPixmapCreateFromXPMData(scr, PRED_ICONIFY_XPM);
 182     if (pix)
 183       pix->shared = 1;
 184     scr->b_pixmaps[WBUT_ICONIFY] = pix;
 185 #ifdef XKB_BUTTON_HINT
 186     pix = wPixmapCreateFromXPMData(scr, PRED_XKBGROUP1_XPM);
 187     if (pix)
 188       pix->shared = 1;
 189     scr->b_pixmaps[WBUT_XKBGROUP1] = pix;
 190     pix = wPixmapCreateFromXPMData(scr, PRED_XKBGROUP2_XPM);
 191     if (pix)
 192       pix->shared = 1;
 193     scr->b_pixmaps[WBUT_XKBGROUP2] = pix;
 194     pix = wPixmapCreateFromXPMData(scr, PRED_XKBGROUP3_XPM);
 195     if (pix)
 196       pix->shared = 1;
 197     scr->b_pixmaps[WBUT_XKBGROUP3] = pix;
 198     pix = wPixmapCreateFromXPMData(scr, PRED_XKBGROUP4_XPM);
 199     if (pix)
 200       pix->shared = 1;
 201     scr->b_pixmaps[WBUT_XKBGROUP4] = pix;
 202 #endif
 203
 204
 205     pix = wPixmapCreateFromXPMData(scr, PRED_KILL_XPM);
 206     if (pix)
 207       pix->shared = 1;
 208     scr->b_pixmaps[WBUT_KILL] = pix;
 209 }
 210
 211
 212 static void
 213 draw_dot(WScreen *scr, Drawable d, int x, int y, GC gc)
 214 {
 215     XSetForeground(dpy, gc, scr->black_pixel);
 216     XDrawLine(dpy, d, gc, x, y, x+1, y);
 217     XDrawPoint(dpy, d, gc, x, y+1);
 218     XSetForeground(dpy, gc, scr->white_pixel);
 219     XDrawLine(dpy, d, gc, x+2, y, x+2, y+1);
 220     XDrawPoint(dpy, d, gc, x+1, y+1);
 221 }
 222
 223
 224 static WPixmap*
 225 make3Dots(WScreen *scr)
 226 {
 227     WPixmap *wpix;
 228     GC gc2, gc;
 229     XGCValues gcv;
 230     Pixmap pix, mask;
 231
 232     gc = scr->copy_gc;
 233     pix = XCreatePixmap(dpy, scr->w_win, wPreferences.icon_size,
 234                         wPreferences.icon_size, scr->w_depth);
 235     XSetForeground(dpy, gc, scr->black_pixel);
 236     XFillRectangle(dpy, pix, gc, 0, 0, wPreferences.icon_size,
 237                    wPreferences.icon_size);
 238     XSetForeground(dpy, gc, scr->white_pixel);
 239     draw_dot(scr, pix, 4, wPreferences.icon_size-6, gc);
 240     draw_dot(scr, pix, 9, wPreferences.icon_size-6, gc);
 241     draw_dot(scr, pix, 14, wPreferences.icon_size-6, gc);
 242
 243     mask = XCreatePixmap(dpy, scr->w_win, wPreferences.icon_size,
 244                          wPreferences.icon_size, 1);
 245     gcv.foreground = 0;
 246     gcv.graphics_exposures = False;
 247     gc2 = XCreateGC(dpy, mask, GCForeground|GCGraphicsExposures, &gcv);
 248     XFillRectangle(dpy, mask, gc2, 0, 0, wPreferences.icon_size,
 249                    wPreferences.icon_size);
 250     XSetForeground(dpy, gc2, 1);
 251     XFillRectangle(dpy, mask, gc2, 4, wPreferences.icon_size-6, 3, 2);
 252     XFillRectangle(dpy, mask, gc2, 9, wPreferences.icon_size-6, 3, 2);
 253     XFillRectangle(dpy, mask, gc2, 14, wPreferences.icon_size-6, 3, 2);
 254
 255     XFreeGC(dpy, gc2);
 256
 257     wpix = wPixmapCreate(scr, pix, mask);
 258     wpix->shared = 1;
 259
 260     return wpix;
 261 }
 262
 263
 264 static void
 265 allocGCs(WScreen *scr)
 266 {
 267     XGCValues gcv;
 268     XColor color;
 269     unsigned long mtextcolor;
 270     int gcm;
 271
 272     scr->stipple_bitmap =
 273       XCreateBitmapFromData(dpy, scr->w_win, STIPPLE_DATA, STIPPLE_WIDTH,
 274                             STIPPLE_HEIGHT);
 275
 276     gcv.stipple = scr->stipple_bitmap;
 277     gcv.foreground = scr->white_pixel;
 278     gcv.fill_style = FillStippled;
 279     gcv.graphics_exposures = False;
 280     gcm = GCForeground|GCStipple|GCFillStyle|GCGraphicsExposures;
 281     scr->stipple_gc = XCreateGC(dpy, scr->w_win, gcm, &gcv);
 282
 283
 284     /* selected icon border GCs */
 285     gcv.function    = GXcopy;
 286     gcv.foreground  = scr->white_pixel;
 287     gcv.background  = scr->black_pixel;
 288     gcv.line_width  = 1;
 289     gcv.line_style  = LineDoubleDash;
 290     gcv.fill_style  = FillSolid;
 291     gcv.dash_offset = 0;
 292     gcv.dashes      = 4;
 293     gcv.graphics_exposures = False;
 294
 295     gcm = GCFunction | GCGraphicsExposures;
 296     gcm |= GCForeground | GCBackground;
 297     gcm |= GCLineWidth | GCLineStyle;
 298     gcm |= GCFillStyle;
 299     gcm |= GCDashOffset | GCDashList;
 300
 301     scr->icon_select_gc = XCreateGC(dpy, scr->w_win, gcm, &gcv);
 302
 303     gcm = GCForeground|GCGraphicsExposures;
 304
 305     scr->menu_title_pixel[0] = scr->white_pixel;
 306     gcv.foreground = scr->white_pixel;
 307     gcv.graphics_exposures = False;
 308     scr->menu_title_gc = XCreateGC(dpy, scr->w_win, gcm, &gcv);
 309
 310     scr->mtext_pixel = scr->black_pixel;
 311     mtextcolor = gcv.foreground = scr->black_pixel;
 312     scr->menu_entry_gc = XCreateGC(dpy, scr->w_win, gcm, &gcv);
 313
 314     /* selected menu entry GC */
 315     gcm = GCForeground|GCBackground|GCGraphicsExposures;
 316     gcv.foreground = scr->white_pixel;
 317     gcv.background = scr->white_pixel;
 318     gcv.graphics_exposures = False;
 319     scr->select_menu_gc = XCreateGC(dpy, scr->w_win, gcm, &gcv);
 320
 321     /* disabled menu entry GC */
 322     scr->dtext_pixel = scr->black_pixel;
 323     gcm = GCForeground|GCBackground|GCStipple|GCGraphicsExposures;
 324     gcv.stipple = scr->stipple_bitmap;
 325     gcv.graphics_exposures = False;
 326     scr->disabled_menu_entry_gc = XCreateGC(dpy, scr->w_win, gcm, &gcv);
 327
 328     /* frame GC */
 329     wGetColor(scr, DEF_FRAME_COLOR, &color);
 330     gcv.function = GXxor;
 331     /* this will raise the probability of the XORed color being different
 332      * of the original color in PseudoColor when not all color cells are
 333      * initialized */
 334     if (DefaultVisual(dpy, scr->screen)->class==PseudoColor)
 335         gcv.plane_mask = (1<<(scr->depth-1))|1;
 336     else
 337         gcv.plane_mask = AllPlanes;
 338     gcv.foreground = color.pixel;
 339     if (gcv.foreground == 0)
 340         gcv.foreground = 1;
 341     gcv.line_width = DEF_FRAME_THICKNESS;
 342     gcv.subwindow_mode = IncludeInferiors;
 343     gcv.graphics_exposures = False;
 344     scr->frame_gc = XCreateGC(dpy, scr->root_win, GCForeground|GCGraphicsExposures
 345                               |GCFunction|GCSubwindowMode|GCLineWidth
 346                               |GCPlaneMask, &gcv);
 347
 348     /* line GC */
 349     gcv.foreground = color.pixel;
 350
 351     if (gcv.foreground == 0)
 352         /* XOR:ing with a zero is not going to be of much use, so
 353            in that case, we somewhat arbitrarily xor with 17 instead. */
 354         gcv.foreground = 17;
 355
 356     gcv.function = GXxor;
 357     gcv.subwindow_mode = IncludeInferiors;
 358     gcv.line_width = 1;
 359     gcv.cap_style = CapRound;
 360     gcv.graphics_exposures = False;
 361     gcm = GCForeground|GCFunction|GCSubwindowMode|GCLineWidth|GCCapStyle
 362         |GCGraphicsExposures;
 363     scr->line_gc = XCreateGC(dpy, scr->root_win, gcm, &gcv);
 364
 365     scr->line_pixel = gcv.foreground;
 366
 367     /* copy GC */
 368     gcv.foreground = scr->white_pixel;
 369     gcv.background = scr->black_pixel;
 370     gcv.graphics_exposures = False;
 371     scr->copy_gc = XCreateGC(dpy, scr->w_win, GCForeground|GCBackground
 372                              |GCGraphicsExposures, &gcv);
 373
 374     /* window title text GC */
 375     gcv.graphics_exposures = False;
 376     scr->window_title_gc = XCreateGC(dpy, scr->w_win,GCGraphicsExposures,&gcv);
 377
 378     /* clip title GC */
 379     scr->clip_title_gc = XCreateGC(dpy, scr->w_win, GCGraphicsExposures, &gcv);
 380
 381     /* move/size display GC */
 382     gcv.graphics_exposures = False;
 383     gcm = GCGraphicsExposures;
 384     scr->info_text_gc = XCreateGC(dpy, scr->w_win, gcm, &gcv);
 385
 386     /* misc drawing GC */
 387     gcv.graphics_exposures = False;
 388     gcm = GCGraphicsExposures;
 389     scr->draw_gc = XCreateGC(dpy, scr->w_win, gcm, &gcv);
 390
 391     assert (scr->stipple_bitmap!=None);
 392
 393
 394     /* mono GC */
 395     scr->mono_gc = XCreateGC(dpy, scr->stipple_bitmap, gcm, &gcv);
 396 }
 397
 398
 399
 400 static void
 401 createPixmaps(WScreen *scr)
 402 {
 403     WPixmap *pix;
 404     RImage *image;
 405
 406     /* load pixmaps */
 407     pix = wPixmapCreateFromXBMData(scr, (char*)MENU_RADIO_INDICATOR_XBM_DATA,
 408                                    (char*)MENU_RADIO_INDICATOR_XBM_DATA,
 409                                    MENU_RADIO_INDICATOR_XBM_SIZE,
 410                                    MENU_RADIO_INDICATOR_XBM_SIZE,
 411                                    scr->black_pixel, scr->white_pixel);
 412     if (pix!=NULL)
 413         pix->shared = 1;
 414     scr->menu_radio_indicator = pix;
 415
 416
 417     pix = wPixmapCreateFromXBMData(scr, (char*)MENU_CHECK_INDICATOR_XBM_DATA,
 418                                    (char*)MENU_CHECK_INDICATOR_XBM_DATA,
 419                                    MENU_CHECK_INDICATOR_XBM_SIZE,
 420                                    MENU_CHECK_INDICATOR_XBM_SIZE,
 421                                    scr->black_pixel, scr->white_pixel);
 422     if (pix!=NULL)
 423         pix->shared = 1;
 424     scr->menu_check_indicator = pix;
 425
 426     pix = wPixmapCreateFromXBMData(scr, (char*)MENU_MINI_INDICATOR_XBM_DATA,
 427                                    (char*)MENU_MINI_INDICATOR_XBM_DATA,
 428                                    MENU_MINI_INDICATOR_XBM_SIZE,
 429                                    MENU_MINI_INDICATOR_XBM_SIZE,
 430                                    scr->black_pixel, scr->white_pixel);
 431     if (pix!=NULL)
 432         pix->shared = 1;
 433     scr->menu_mini_indicator = pix;
 434
 435     pix = wPixmapCreateFromXBMData(scr, (char*)MENU_HIDE_INDICATOR_XBM_DATA,
 436                                    (char*)MENU_HIDE_INDICATOR_XBM_DATA,
 437                                    MENU_HIDE_INDICATOR_XBM_SIZE,
 438                                    MENU_HIDE_INDICATOR_XBM_SIZE,
 439                                    scr->black_pixel, scr->white_pixel);
 440     if (pix!=NULL)
 441         pix->shared = 1;
 442     scr->menu_hide_indicator = pix;
 443
 444     pix = wPixmapCreateFromXBMData(scr, (char*)MENU_SHADE_INDICATOR_XBM_DATA,
 445                                    (char*)MENU_SHADE_INDICATOR_XBM_DATA,
 446                                    MENU_SHADE_INDICATOR_XBM_SIZE,
 447                                    MENU_SHADE_INDICATOR_XBM_SIZE,
 448                                    scr->black_pixel, scr->white_pixel);
 449     if (pix!=NULL)
 450         pix->shared = 1;
 451     scr->menu_shade_indicator = pix;
 452
 453
 454     image = wDefaultGetImage(scr, "Logo", "WMPanel");
 455
 456     if (!image) {
 457         wwarning(_("could not load logo image for panels: %s"),
 458                  RMessageForError(RErrorCode));
 459     } else {
 460         WMSetApplicationIconImage(scr->wmscreen, image);
 461         RReleaseImage(image);
 462     }
 463
 464     scr->dock_dots = make3Dots(scr);
 465
 466     /* titlebar button pixmaps */
 467     allocButtonPixmaps(scr);
 468 }
 469
 470
 471 /*
 472  *----------------------------------------------------------------------
 473  * createInternalWindows--
 474  *      Creates some windows used internally by the program. One to
 475  * receive input focus when no other window can get it and another
 476  * to display window geometry information during window resize/move.
 477  *
 478  * Returns:
 479  *      Nothing
 480  *
 481  * Side effects:
 482  *      Windows are created and some colors are allocated for the
 483  * window background.
 484  *----------------------------------------------------------------------
 485  */
 486 static void
 487 createInternalWindows(WScreen *scr)
 488 {
 489     int vmask;
 490     XSetWindowAttributes attribs;
 491
 492     /* InputOnly window to get the focus when no other window can get it */
 493     vmask = CWEventMask|CWOverrideRedirect;
 494     attribs.event_mask = KeyPressMask|FocusChangeMask;
 495     attribs.override_redirect = True;
 496     scr->no_focus_win=XCreateWindow(dpy,scr->root_win,-10, -10, 4, 4, 0, 0,
 497                                     InputOnly,CopyFromParent, vmask, &attribs);
 498     XSelectInput(dpy, scr->no_focus_win, KeyPressMask|KeyReleaseMask);
 499     XMapWindow(dpy, scr->no_focus_win);
 500
 501     XSetInputFocus(dpy, scr->no_focus_win, RevertToParent, CurrentTime);
 502
 503     /* shadow window for dock buttons */
 504     vmask = CWBorderPixel|CWBackPixmap|CWBackPixel|CWCursor|CWSaveUnder|CWOverrideRedirect;
 505     attribs.border_pixel = scr->black_pixel;
 506     attribs.save_under = True;
 507     attribs.override_redirect = True;
 508     attribs.background_pixmap = None;
 509     attribs.background_pixel = scr->white_pixel;
 510     attribs.cursor = wCursor[WCUR_DEFAULT];
 511     vmask |= CWColormap;
 512     attribs.colormap = scr->w_colormap;
 513     scr->dock_shadow =
 514       XCreateWindow(dpy, scr->root_win, 0, 0, wPreferences.icon_size,
 515                     wPreferences.icon_size, 0, scr->w_depth, CopyFromParent,
 516                     scr->w_visual, vmask, &attribs);
 517
 518     /* workspace name balloon for clip */
 519     vmask = CWBackPixel|CWSaveUnder|CWOverrideRedirect|CWColormap
 520         |CWBorderPixel;
 521     attribs.save_under = True;
 522     attribs.override_redirect = True;
 523     attribs.colormap = scr->w_colormap;
 524     attribs.background_pixel = scr->icon_back_texture->normal.pixel;
 525     attribs.border_pixel = 0; /* do not care */
 526     scr->clip_balloon =
 527       XCreateWindow(dpy, scr->root_win, 0, 0, 10, 10, 0, scr->w_depth,
 528                     CopyFromParent, scr->w_visual, vmask, &attribs);
 529
 530
 531     /* workspace name */
 532     vmask = CWBackPixel|CWSaveUnder|CWOverrideRedirect|CWColormap
 533         |CWBorderPixel;
 534     attribs.save_under = True;
 535     attribs.override_redirect = True;
 536     attribs.colormap = scr->w_colormap;
 537     attribs.background_pixel = scr->icon_back_texture->normal.pixel;
 538     attribs.border_pixel = 0; /* do not care */
 539     scr->workspace_name =
 540       XCreateWindow(dpy, scr->root_win, 0, 0, 10, 10, 0, scr->w_depth,
 541                     CopyFromParent, scr->w_visual, vmask, &attribs);
 542
 543     /*
 544      * If the window is clicked without having ButtonPress selected, the
 545      * resulting event will have event.xbutton.window == root.
 546      */
 547     XSelectInput(dpy, scr->clip_balloon, ButtonPressMask);
 548 }
 549
 550
 551 #if 0
 552 static Bool
 553 aquireManagerSelection(WScreen *scr)
 554 {
 555     char buffer[32];
 556     XEvent ev;
 557     Time timestamp;
 558
 559     snprintf(buffer, sizeof(buffer), "WM_S%i", scr->screen);
 560     scr->managerAtom = XInternAtom(dpy, buffer, False);
 561
 562     /* for race-conditions... */
 563     XGrabServer(dpy);
 564
 565     /* if there is another manager running, don't try to replace it
 566      * (for now, at least) */
 567     if (XGetSelectionOwner(dpy, scr->managerAtom) != None) {
 568         XUngrabServer(dpy);
 569         return False;
 570     }
 571
 572     /* become the manager for this screen */
 573
 574     scr->managerWindow = XCreateSimpleWindow(dpy, scr->root_win, 0, 0, 1, 1,
 575                                              0, 0, 0);
 576
 577     XSelectInput(dpy, scr->managerWindow, PropertyChangeMask);
 578     /* get a timestamp */
 579     XChangeProperty(dpy, scr->managerWindow, scr->managerAtom,
 580                     XA_INTEGER, 32, PropModeAppend, NULL, 0);
 581     while (1) {
 582         XWindowEvent(dpy, scr->managerWindow, &ev);
 583         if (ev.type == PropertyNotify) {
 584             timestamp = ev.xproperty.time;
 585             break;
 586         }
 587     }
 588     XSelectInput(dpy, scr->managerWindow, NoEvents);
 589     XDeleteProperty(dpy, scr->managerWindow, scr->managerAtom);
 590
 591     XSetSelectionOwner(dpy, scr->managerAtom, scr->managerWindow, CurrentTime);
 592
 593     XUngrabServer(dpy);
 594
 595     /* announce our arrival */
 596
 597     ev.xclient.type = ClientMessage;
 598     ev.xclient.message_type = XInternAtom(dpy, "MANAGER", False);
 599     ev.xclient.destination = scr->root_win;
 600     ev.xclient.format = 32;
 601     ev.xclient.data.l[0] = timestamp;
 602     ev.xclient.data.l[1] = scr->managerAtom;
 603     ev.xclient.data.l[2] = scr->managerWindow;
 604     ev.xclient.data.l[3] = 0;
 605     ev.xclient.data.l[4] = 0;
 606
 607     XSendEvent(dpy, scr->root_win, False, StructureNotify, &ev);
 608     XSync(dpy, False);
 609
 610     return True;
 611 }
 612 #endif
 613
 614 /*
 615  *----------------------------------------------------------------------
 616  * wScreenInit--
 617  *      Initializes the window manager for the given screen and
 618  * allocates a WScreen descriptor for it. Many resources are allocated
 619  * for the screen and the root window is setup appropriately.
 620  *
 621  * Returns:
 622  *      The WScreen descriptor for the screen.
 623  *
 624  * Side effects:
 625  *      Many resources are allocated and the IconSize property is
 626  * set on the root window.
 627  *      The program can be aborted if some fatal error occurs.
 628  *
 629  * TODO: User specifiable visual.
 630  *----------------------------------------------------------------------
 631  */
 632 WScreen*
 633 wScreenInit(int screen_number)
 634 {
 635     WScreen *scr;
 636     XIconSize icon_size[1];
 637     RContextAttributes rattr;
 638     extern int wVisualID;
 639     long event_mask;
 640     WMColor *color;
 641     XErrorHandler oldHandler;
 642
 643     scr = wmalloc(sizeof(WScreen));
 644     memset(scr, 0, sizeof(WScreen));
 645
 646     scr->stacking_list = WMCreateTreeBag();
 647
 648     /* initialize globals */
 649     scr->screen = screen_number;
 650     scr->root_win = RootWindow(dpy, screen_number);
 651     scr->depth = DefaultDepth(dpy, screen_number);
 652     scr->colormap = DefaultColormap(dpy, screen_number);
 653
 654     scr->scr_width = WidthOfScreen(ScreenOfDisplay(dpy, screen_number));
 655     scr->scr_height = HeightOfScreen(ScreenOfDisplay(dpy, screen_number));
 656
 657     scr->usableArea.x2 = scr->scr_width;
 658     scr->usableArea.y2 = scr->scr_height;
 659     scr->totalUsableArea.x2 = scr->scr_width;
 660     scr->totalUsableArea.y2 = scr->scr_height;
 661
 662     scr->fakeGroupLeaders = WMCreateArray(16);
 663
 664 #if 0
 665     if (!aquireManagerSelection(scr)) {
 666         wfree(scr);
 667
 668         return NULL;
 669     }
 670 #endif
 671     CantManageScreen = 0;
 672     oldHandler = XSetErrorHandler((XErrorHandler)alreadyRunningError);
 673
 674     event_mask = EVENT_MASK;
 675
 676     if (wPreferences.disable_root_mouse) {
 677         event_mask &= ~(ButtonPressMask|ButtonReleaseMask);
 678     }
 679
 680     XSelectInput(dpy, scr->root_win, event_mask);
 681
 682 #ifdef KEEP_XKB_LOCK_STATUS
 683     /* Only GroupLock doesn't work correctly in my system since right-alt
 684      * can change mode while holding it too - ]d
 685      */
 686     if (wXkbSupported) {
 687         XkbSelectEvents(dpy,XkbUseCoreKbd,
 688                 XkbStateNotifyMask,
 689                 XkbStateNotifyMask);
 690     }
 691 #endif /* KEEP_XKB_LOCK_STATUS */
 692
 693     XSync(dpy, False);
 694     XSetErrorHandler(oldHandler);
 695
 696     if (CantManageScreen) {
 697         wfree(scr);
 698         return NULL;
 699     }
 700
 701 #ifdef XINERAMA
 702     wInitXinerama(scr);
 703 #endif
 704
 705
 706     XDefineCursor(dpy, scr->root_win, wCursor[WCUR_ROOT]);
 707
 708     /* screen descriptor for raster graphic library */
 709     rattr.flags = RC_RenderMode | RC_ColorsPerChannel | RC_StandardColormap;
 710     rattr.render_mode = wPreferences.no_dithering
 711                                 ? RBestMatchRendering
 712                                 : RDitheredRendering;
 713
 714     /* if the std colormap stuff works ok, this will be ignored */
 715     rattr.colors_per_channel = wPreferences.cmap_size;
 716     if (rattr.colors_per_channel<2)
 717         rattr.colors_per_channel = 2;
 718
 719
 720     /* will only be accounted for in PseudoColor */
 721     if (wPreferences.flags.create_stdcmap) {
 722         rattr.standard_colormap_mode = RCreateStdColormap;
 723     } else {
 724         rattr.standard_colormap_mode = RUseStdColormap;
 725     }
 726
 727     if (wVisualID>=0) {
 728         rattr.flags |= RC_VisualID;
 729         rattr.visualid = wVisualID;
 730     }
 731
 732     scr->rcontext = RCreateContext(dpy, screen_number, &rattr);
 733
 734     if (!scr->rcontext && RErrorCode == RERR_STDCMAPFAIL) {
 735         wwarning(RMessageForError(RErrorCode));
 736
 737         rattr.flags &= ~RC_StandardColormap;
 738         rattr.standard_colormap_mode = RUseStdColormap;
 739
 740         scr->rcontext = RCreateContext(dpy, screen_number, &rattr);
 741     }
 742
 743     if (!scr->rcontext) {
 744         wwarning(_("could not initialize graphics library context: %s"),
 745                  RMessageForError(RErrorCode));
 746         wAbort(False);
 747     } else {
 748         char **formats;
 749         int i = 0;
 750
 751         formats = RSupportedFileFormats();
 752         if (formats) {
 753             for (i=0; formats[i]!=NULL; i++) {
 754                 if (strcmp(formats[i], "TIFF")==0) {
 755                     scr->flags.supports_tiff = 1;
 756                     break;
 757                 }
 758             }
 759         }
 760     }
 761
 762     scr->w_win = scr->rcontext->drawable;
 763     scr->w_visual = scr->rcontext->visual;
 764     scr->w_depth = scr->rcontext->depth;
 765     scr->w_colormap = scr->rcontext->cmap;
 766
 767     scr->black_pixel = scr->rcontext->black;
 768     scr->white_pixel = scr->rcontext->white;
 769
 770     /* create screen descriptor for WINGs */
 771     scr->wmscreen = WMCreateScreenWithRContext(dpy, screen_number,
 772                                                scr->rcontext);
 773
 774     if (!scr->wmscreen) {
 775         wfatal(_("could not do initialization of WINGs widget set"));
 776
 777         return NULL;
 778     }
 779
 780     color = WMGrayColor(scr->wmscreen);
 781     scr->light_pixel = WMColorPixel(color);
 782     WMReleaseColor(color);
 783
 784     color = WMDarkGrayColor(scr->wmscreen);
 785     scr->dark_pixel = WMColorPixel(color);
 786     WMReleaseColor(color);
 787
 788     {
 789         XColor xcol;
 790         /* frame boder color */
 791         wGetColor(scr, FRAME_BORDER_COLOR, &xcol);
 792         scr->frame_border_pixel = xcol.pixel;
 793     }
 794
 795     /* create GCs with default values */
 796     allocGCs(scr);
 797
 798
 799     /* for our window manager info notice board. Need to
 800      * create before reading the defaults, because it will be used there.
 801      */
 802     scr->info_window = XCreateSimpleWindow(dpy, scr->root_win, 0, 0, 10, 10,
 803                                            0, 0, 0);
 804
 805     /* read defaults for this screen */
 806     wReadDefaults(scr, WDWindowMaker->dictionary);
 807
 808     createInternalWindows(scr);
 809
 810 #ifdef KWM_HINTS
 811     wKWMInitStuff(scr);
 812 #endif
 813
 814 #ifdef GNOME_STUFF
 815     wGNOMEInitStuff(scr);
 816 #endif
 817
 818 #ifdef OLWM_HINTS
 819     wOLWMInitStuff(scr);
 820 #endif
 821
 822     /* create initial workspace */
 823     wWorkspaceNew(scr);
 824
 825     /* create shared pixmaps */
 826     createPixmaps(scr);
 827
 828     /* set icon sizes we can accept from clients */
 829     icon_size[0].min_width = 8;
 830     icon_size[0].min_height = 8;
 831     icon_size[0].max_width = wPreferences.icon_size-4;
 832     icon_size[0].max_height = wPreferences.icon_size-4;
 833     icon_size[0].width_inc = 1;
 834     icon_size[0].height_inc = 1;
 835     XSetIconSizes(dpy, scr->root_win, icon_size, 1);
 836
 837     /* setup WindowMaker protocols property in the root window*/
 838     PropSetWMakerProtocols(scr->root_win);
 839
 840     /* setup our noticeboard */
 841     XChangeProperty(dpy, scr->info_window, _XA_WINDOWMAKER_NOTICEBOARD,
 842                     XA_WINDOW, 32, PropModeReplace,
 843                     (unsigned char*)&scr->info_window, 1);
 844     XChangeProperty(dpy, scr->root_win, _XA_WINDOWMAKER_NOTICEBOARD,
 845                     XA_WINDOW, 32, PropModeReplace,
 846                     (unsigned char*)&scr->info_window, 1);
 847
 848
 849 #ifdef BALLOON_TEXT
 850     /* initialize balloon text stuff */
 851     wBalloonInitialize(scr);
 852 #endif
 853
 854     scr->info_text_font = WMBoldSystemFontOfSize(scr->wmscreen, 12);
 855
 856
 857     scr->gview = WCreateGeometryView(scr->wmscreen);
 858     WMRealizeWidget(scr->gview);
 859
 860     wScreenUpdateUsableArea(scr);
 861
 862     return scr;
 863 }
 864
 865
 866
 867 static WArea subtractRectangle(WArea area, WArea rect)
 868 {
 869     WArea result = area;
 870
 871
 872 }
 873
 874
 875 void
 876 wScreenUpdateUsableArea(WScreen *scr)
 877 {
 878     WReservedArea *area;
 879
 880     scr->totalUsableArea = scr->usableArea;
 881
 882
 883     if (scr->dock && (!scr->dock->lowered
 884                       || wPreferences.no_window_over_dock)) {
 885
 886         int offset = wPreferences.icon_size + DOCK_EXTRA_SPACE;
 887
 888         if (scr->dock->on_right_side) {
 889             scr->totalUsableArea.x2 = WMIN(scr->totalUsableArea.x2,
 890                                           scr->scr_width - offset);
 891         } else {
 892             scr->totalUsableArea.x1 = WMAX(scr->totalUsableArea.x1, offset);
 893         }
 894     }
 895
 896     if (wPreferences.no_window_over_icons) {
 897         if (wPreferences.icon_yard & IY_VERT) {
 898
 899             if (!(wPreferences.icon_yard & IY_RIGHT)) {
 900                 scr->totalUsableArea.x1 += wPreferences.icon_size;
 901             } else {
 902                 scr->totalUsableArea.x2 -= wPreferences.icon_size;
 903             }
 904         } else {
 905
 906             if (wPreferences.icon_yard & IY_TOP) {
 907                 scr->totalUsableArea.y1 += wPreferences.icon_size;
 908             } else {
 909                 scr->totalUsableArea.y2 -= wPreferences.icon_size;
 910             }
 911         }
 912     }
 913
 914 #ifdef KWM_HINTS
 915     {
 916         WArea area;
 917
 918         if (wKWMGetUsableArea(scr, &area)) {
 919             scr->totalUsableArea.x1 = WMAX(scr->totalUsableArea.x1, area.x1);
 920             scr->totalUsableArea.y1 = WMAX(scr->totalUsableArea.y1, area.y1);
 921             scr->totalUsableArea.x2 = WMIN(scr->totalUsableArea.x2, area.x2);
 922             scr->totalUsableArea.y2 = WMIN(scr->totalUsableArea.y2, area.y2);
 923         }
 924     }
 925 #endif
 926
 927 #ifdef GNOME_STUFF
 928     area = scr->reservedAreas;
 929
 930     while (area) {
 931         int th, bh;
 932         int lw, rw;
 933         int w, h;
 934
 935         w = area->area.x2 - area->area.x1;
 936         h = area->area.y2 - area->area.y1;
 937
 938         th = area->area.y1;
 939         bh = scr->scr_height - area->area.y2;
 940         lw = area->area.x1;
 941         rw = scr->scr_width - area->area.x2;
 942
 943         if (WMIN(th, bh) <= WMIN(lw, rw)) {
 944             /* horizontal */
 945             if (th < bh) {
 946                 /* on top */
 947                 if (scr->totalUsableArea.y1 < area->area.y2)
 948                     scr->totalUsableArea.y1 = area->area.y2;
 949             } else {
 950                 /* on bottom */
 951                 if (scr->totalUsableArea.y2 > area->area.y1)
 952                     scr->totalUsableArea.y2 = area->area.y1;
 953             }
 954         } else {
 955             /* vertical */
 956             if (lw < rw) {
 957                 /* on left */
 958                 if (scr->totalUsableArea.x1 < area->area.x2)
 959                     scr->totalUsableArea.x1 = area->area.x2;
 960             } else {
 961                 /* on right */
 962                 if (scr->totalUsableArea.x2 > area->area.x1)
 963                     scr->totalUsableArea.x2 = area->area.x1;
 964             }
 965         }
 966
 967         area = area->next;
 968     }
 969 #endif /* GNOME_STUFF */
 970
 971     if (scr->totalUsableArea.x2 - scr->totalUsableArea.x1 < scr->scr_width/2) {
 972         scr->totalUsableArea.x2 = scr->usableArea.x2;
 973         scr->totalUsableArea.x1 = scr->usableArea.x1;
 974     }
 975     if (scr->totalUsableArea.y2 - scr->totalUsableArea.y1 < scr->scr_height/2) {
 976         scr->totalUsableArea.y2 = scr->usableArea.y2;
 977         scr->totalUsableArea.y1 = scr->usableArea.y1;
 978     }
 979
 980 #ifdef not_used
 981 #ifdef KWM_HINTS
 982     {
 983         int i;
 984
 985         for (i = 0; i < scr->workspace_count; i++) {
 986             wKWMSetUsableAreaHint(scr, i);
 987         }
 988     }
 989 #endif
 990 #endif
 991
 992     {
 993         unsigned size = wPreferences.workspace_border_size;
 994         unsigned position = wPreferences.workspace_border_position;
 995
 996         if (size>0 && position!=WB_NONE) {
 997             if (position & WB_LEFTRIGHT) {
 998                 scr->totalUsableArea.x1 += size;
 999                 scr->totalUsableArea.x2 -= size;
1000             }
1001             if (position & WB_TOPBOTTOM) {
1002                 scr->totalUsableArea.y1 += size;
1003                 scr->totalUsableArea.y2 -= size;
1004             }
1005         }
1006     }
1007
1008 }
1009
1010
1011 void
1012 wScreenRestoreState(WScreen *scr)
1013 {
1014     WMPropList *state;
1015     char *path;
1016
1017
1018 #ifndef LITE
1019     OpenRootMenu(scr, -10000, -10000, False);
1020     wMenuUnmap(scr->root_menu);
1021 #endif
1022
1023     make_keys();
1024
1025     if (wScreenCount == 1) {
1026         path = wdefaultspathfordomain("WMState");
1027     } else {
1028         char buf[16];
1029         snprintf(buf, sizeof(buf), "WMState.%i", scr->screen);
1030         path = wdefaultspathfordomain(buf);
1031     }
1032     scr->session_state = WMReadPropListFromFile(path);
1033     wfree(path);
1034     if (!scr->session_state && wScreenCount>1) {
1035         path = wdefaultspathfordomain("WMState");
1036         scr->session_state = WMReadPropListFromFile(path);
1037         wfree(path);
1038     }
1039
1040     if (!wPreferences.flags.noclip && scr->session_state) {
1041         state = WMGetFromPLDictionary(scr->session_state, dClip);
1042         scr->clip_icon = wClipRestoreState(scr, state);
1043     }
1044
1045     wWorkspaceRestoreState(scr);
1046
1047 #ifdef VIRTUAL_DESKTOP
1048         /*
1049          *      * create inputonly windows at the border of screen
1050          *           */
1051         wWorkspaceManageEdge(scr);
1052 #endif
1053
1054     if (!wPreferences.flags.nodock && scr->session_state) {
1055         state = WMGetFromPLDictionary(scr->session_state, dDock);
1056         scr->dock = wDockRestoreState(scr, state, WM_DOCK);
1057     }
1058
1059     wScreenUpdateUsableArea(scr);
1060 }
1061
1062
1063 void
1064 wScreenSaveState(WScreen *scr)
1065 {
1066     WWindow *wwin;
1067     char *str;
1068     WMPropList *old_state, *foo;
1069     CARD32 data[2];
1070
1071
1072     make_keys();
1073
1074     /* Save current workspace, so can go back to it upon restart. */
1075     data[0] = scr->current_workspace;
1076     data[1] = WFLAGS_NONE;
1077
1078     XChangeProperty(dpy, scr->root_win, _XA_WINDOWMAKER_STATE,
1079                     _XA_WINDOWMAKER_STATE, 32, PropModeReplace,
1080                     (unsigned char *) data, 2);
1081
1082     /* save state of windows */
1083     wwin = scr->focused_window;
1084     while (wwin) {
1085         wWindowSaveState(wwin);
1086         wwin = wwin->prev;
1087     }
1088
1089
1090     if (wPreferences.flags.noupdates)
1091         return;
1092
1093
1094     old_state = scr->session_state;
1095     scr->session_state = WMCreatePLDictionary(NULL, NULL, NULL);
1096
1097     WMPLSetCaseSensitive(True);
1098
1099     /* save dock state to file */
1100     if (!wPreferences.flags.nodock) {
1101         wDockSaveState(scr, old_state);
1102     } else {
1103         if ((foo = WMGetFromPLDictionary(old_state, dDock))!=NULL) {
1104             WMPutInPLDictionary(scr->session_state, dDock, foo);
1105         }
1106     }
1107     if (!wPreferences.flags.noclip) {
1108         wClipSaveState(scr);
1109     } else {
1110         if ((foo = WMGetFromPLDictionary(old_state, dClip))!=NULL) {
1111             WMPutInPLDictionary(scr->session_state, dClip, foo);
1112         }
1113     }
1114
1115     wWorkspaceSaveState(scr, old_state);
1116
1117     if (wPreferences.save_session_on_exit) {
1118         wSessionSaveState(scr);
1119     } else {
1120         if ((foo = WMGetFromPLDictionary(old_state, dApplications))!=NULL) {
1121             WMPutInPLDictionary(scr->session_state, dApplications, foo);
1122         }
1123         if ((foo = WMGetFromPLDictionary(old_state, dWorkspace))!=NULL) {
1124             WMPutInPLDictionary(scr->session_state, dWorkspace, foo);
1125         }
1126     }
1127
1128     /* clean up */
1129     WMPLSetCaseSensitive(False);
1130
1131     wMenuSaveState(scr);
1132
1133     if (wScreenCount == 1)
1134         str = wdefaultspathfordomain("WMState");
1135     else {
1136         char buf[16];
1137         snprintf(buf, sizeof(buf), "WMState.%i", scr->screen);
1138         str = wdefaultspathfordomain(buf);
1139     }
1140     if (!WMWritePropListToFile(scr->session_state, str, True)) {
1141         wsyserror(_("could not save session state in %s"), str);
1142     }
1143     wfree(str);
1144     WMReleasePropList(old_state);
1145 }
1146
1147
1148
1149 int
1150 wScreenBringInside(WScreen *scr, int *x, int *y, int width, int height)
1151 {
1152     int moved = 0;
1153     int tol_w, tol_h;
1154
1155     if (width > 20)
1156         tol_w = width/2;
1157     else
1158         tol_w = 20;
1159
1160     if (height > 20)
1161         tol_h = height/2;
1162     else
1163         tol_h = 20;
1164
1165     if (*x+width < 10)
1166         *x = -tol_w, moved = 1;
1167     else if (*x >= scr->scr_width - 10)
1168         *x = scr->scr_width - tol_w - 1, moved = 1;
1169
1170     if (*y < -height + 10)
1171         *y = -tol_h, moved = 1;
1172     else if (*y >= scr->scr_height - 10)
1173         *y = scr->scr_height - tol_h - 1, moved = 1;
1174
1175     return moved;
1176 }
1177
1178