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 #ifdef KWM_HINTS
  56 # include "kwm.h"
  57 #endif
  58 #ifdef GNOME_STUFF
  59 # include "gnome.h"
  60 #endif
  61 #ifdef OLWM_HINTS
  62 # include "openlook.h"
  63 #endif
  64
  65 #include <proplist.h>
  66
  67 #include "defaults.h"
  68
  69
  70 #ifdef LITE
  71 #define EVENT_MASK (LeaveWindowMask|EnterWindowMask|PropertyChangeMask\
  72                 |SubstructureNotifyMask|PointerMotionMask \
  73                 |SubstructureRedirectMask|KeyPressMask|KeyReleaseMask)
  74 #else
  75 #define EVENT_MASK (LeaveWindowMask|EnterWindowMask|PropertyChangeMask\
  76                 |SubstructureNotifyMask|PointerMotionMask \
  77                 |SubstructureRedirectMask|ButtonPressMask|ButtonReleaseMask\
  78                 |KeyPressMask|KeyReleaseMask)
  79 #endif
  80
  81 /**** Global variables ****/
  82
  83 extern Cursor wCursor[WCUR_LAST];
  84 extern WPreferences wPreferences;
  85 extern Atom _XA_WINDOWMAKER_STATE;
  86 extern Atom _XA_WINDOWMAKER_NOTICEBOARD;
  87
  88
  89 extern int wScreenCount;
  90
  91 extern WDDomain *WDWindowMaker;
  92
  93
  94 /**** Local ****/
  95
  96 #define STIPPLE_WIDTH 2
  97 #define STIPPLE_HEIGHT 2
  98 static char STIPPLE_DATA[] = {0x02, 0x01};
  99
 100 static int CantManageScreen = 0;
 101
 102 static proplist_t dApplications = NULL;
 103 static proplist_t dWorkspace;
 104 static proplist_t dDock;
 105 static proplist_t dClip;
 106
 107
 108 static void
 109 make_keys()
 110 {
 111     if (dApplications!=NULL)
 112         return;
 113
 114     dApplications = PLMakeString("Applications");
 115     dWorkspace = PLMakeString("Workspace");
 116     dDock = PLMakeString("Dock");
 117     dClip = PLMakeString("Clip");
 118 }
 119
 120
 121 /*
 122  *----------------------------------------------------------------------
 123  * alreadyRunningError--
 124  *      X error handler used to catch errors when trying to do
 125  * XSelectInput() on the root window. These errors probably mean that
 126  * there already is some other window manager running.
 127  *
 128  * Returns:
 129  *      Nothing, unless something really evil happens...
 130  *
 131  * Side effects:
 132  *      CantManageScreen is set to 1;
 133  *----------------------------------------------------------------------
 134  */
 135 static int
 136 alreadyRunningError(Display *dpy, XErrorEvent *error)
 137 {
 138     CantManageScreen = 1;
 139     return -1;
 140 }
 141
 142
 143 /*
 144  *----------------------------------------------------------------------
 145  * allocButtonPixmaps--
 146  *      Allocate pixmaps used on window operation buttons (those in the
 147  * titlebar). The pixmaps are linked to the program. If XPM is supported
 148  * XPM pixmaps are used otherwise, equivalent bitmaps are used.
 149  *
 150  * Returns:
 151  *      Nothing
 152  *
 153  * Side effects:
 154  *      Allocates shared pixmaps for the screen. These pixmaps should
 155  * not be freed by anybody.
 156  *----------------------------------------------------------------------
 157  */
 158 static void
 159 allocButtonPixmaps(WScreen *scr)
 160 {
 161     WPixmap *pix;
 162
 163     /* create predefined pixmaps */
 164     pix = wPixmapCreateFromXPMData(scr, PRED_CLOSE_XPM);
 165     if (pix)
 166       pix->shared = 1;
 167     scr->b_pixmaps[WBUT_CLOSE] = pix;
 168
 169     pix = wPixmapCreateFromXPMData(scr, PRED_BROKEN_CLOSE_XPM);
 170     if (pix)
 171       pix->shared = 1;
 172     scr->b_pixmaps[WBUT_BROKENCLOSE] = pix;
 173
 174     pix = wPixmapCreateFromXPMData(scr, PRED_ICONIFY_XPM);
 175     if (pix)
 176       pix->shared = 1;
 177     scr->b_pixmaps[WBUT_ICONIFY] = pix;
 178
 179     pix = wPixmapCreateFromXPMData(scr, PRED_KILL_XPM);
 180     if (pix)
 181       pix->shared = 1;
 182     scr->b_pixmaps[WBUT_KILL] = pix;
 183 }
 184
 185
 186 static void
 187 draw_dot(WScreen *scr, Drawable d, int x, int y, GC gc)
 188 {
 189     XSetForeground(dpy, gc, scr->black_pixel);
 190     XDrawLine(dpy, d, gc, x, y, x+1, y);
 191     XDrawPoint(dpy, d, gc, x, y+1);
 192     XSetForeground(dpy, gc, scr->white_pixel);
 193     XDrawLine(dpy, d, gc, x+2, y, x+2, y+1);
 194     XDrawPoint(dpy, d, gc, x+1, y+1);
 195 }
 196
 197
 198 static WPixmap*
 199 make3Dots(WScreen *scr)
 200 {
 201     WPixmap *wpix;
 202     GC gc2, gc;
 203     XGCValues gcv;
 204     Pixmap pix, mask;
 205
 206     gc = scr->copy_gc;
 207     pix = XCreatePixmap(dpy, scr->w_win, wPreferences.icon_size,
 208                         wPreferences.icon_size, scr->w_depth);
 209     XSetForeground(dpy, gc, scr->black_pixel);
 210     XFillRectangle(dpy, pix, gc, 0, 0, wPreferences.icon_size,
 211                    wPreferences.icon_size);
 212     XSetForeground(dpy, gc, scr->white_pixel);
 213     draw_dot(scr, pix, 4, wPreferences.icon_size-6, gc);
 214     draw_dot(scr, pix, 9, wPreferences.icon_size-6, gc);
 215     draw_dot(scr, pix, 14, wPreferences.icon_size-6, gc);
 216
 217     mask = XCreatePixmap(dpy, scr->w_win, wPreferences.icon_size,
 218                          wPreferences.icon_size, 1);
 219     gcv.foreground = 0;
 220     gcv.graphics_exposures = False;
 221     gc2 = XCreateGC(dpy, mask, GCForeground|GCGraphicsExposures, &gcv);
 222     XFillRectangle(dpy, mask, gc2, 0, 0, wPreferences.icon_size,
 223                    wPreferences.icon_size);
 224     XSetForeground(dpy, gc2, 1);
 225     XFillRectangle(dpy, mask, gc2, 4, wPreferences.icon_size-6, 3, 2);
 226     XFillRectangle(dpy, mask, gc2, 9, wPreferences.icon_size-6, 3, 2);
 227     XFillRectangle(dpy, mask, gc2, 14, wPreferences.icon_size-6, 3, 2);
 228
 229     XFreeGC(dpy, gc2);
 230
 231     wpix = wPixmapCreate(scr, pix, mask);
 232     wpix->shared = 1;
 233
 234     return wpix;
 235 }
 236
 237
 238 static void
 239 allocGCs(WScreen *scr)
 240 {
 241     XGCValues gcv;
 242     XColor color;
 243     unsigned long mtextcolor;
 244     int gcm;
 245
 246     scr->stipple_bitmap =
 247       XCreateBitmapFromData(dpy, scr->w_win, STIPPLE_DATA, STIPPLE_WIDTH,
 248                             STIPPLE_HEIGHT);
 249
 250     gcv.stipple = scr->stipple_bitmap;
 251     gcv.foreground = scr->white_pixel;
 252     gcv.fill_style = FillStippled;
 253     gcv.graphics_exposures = False;
 254     gcm = GCForeground|GCStipple|GCFillStyle|GCGraphicsExposures;
 255     scr->stipple_gc = XCreateGC(dpy, scr->w_win, gcm, &gcv);
 256
 257
 258     /* selected icon border GCs */
 259     gcv.function    = GXcopy;
 260     gcv.foreground  = scr->white_pixel;
 261     gcv.background  = scr->black_pixel;
 262     gcv.line_width  = 1;
 263     gcv.line_style  = LineDoubleDash;
 264     gcv.fill_style  = FillSolid;
 265     gcv.dash_offset = 0;
 266     gcv.dashes      = 4;
 267     gcv.graphics_exposures = False;
 268
 269     gcm = GCFunction | GCGraphicsExposures;
 270     gcm |= GCForeground | GCBackground;
 271     gcm |= GCLineWidth | GCLineStyle;
 272     gcm |= GCFillStyle;
 273     gcm |= GCDashOffset | GCDashList;
 274
 275     scr->icon_select_gc = XCreateGC(dpy, scr->w_win, gcm, &gcv);
 276
 277     gcm = GCForeground|GCGraphicsExposures;
 278
 279     scr->menu_title_pixel[0] = scr->white_pixel;
 280     gcv.foreground = scr->white_pixel;
 281     gcv.graphics_exposures = False;
 282     scr->menu_title_gc = XCreateGC(dpy, scr->w_win, gcm, &gcv);
 283
 284     scr->mtext_pixel = scr->black_pixel;
 285     mtextcolor = gcv.foreground = scr->black_pixel;
 286     scr->menu_entry_gc = XCreateGC(dpy, scr->w_win, gcm, &gcv);
 287
 288     /* selected menu entry GC */
 289     gcm = GCForeground|GCBackground|GCGraphicsExposures;
 290     gcv.foreground = scr->white_pixel;
 291     gcv.background = scr->white_pixel;
 292     gcv.graphics_exposures = False;
 293     scr->select_menu_gc = XCreateGC(dpy, scr->w_win, gcm, &gcv);
 294
 295     /* disabled menu entry GC */
 296     scr->dtext_pixel = scr->black_pixel;
 297     gcm = GCForeground|GCBackground|GCStipple|GCGraphicsExposures;
 298     gcv.stipple = scr->stipple_bitmap;
 299     gcv.graphics_exposures = False;
 300     scr->disabled_menu_entry_gc = XCreateGC(dpy, scr->w_win, gcm, &gcv);
 301
 302     /* frame GC */
 303     wGetColor(scr, DEF_FRAME_COLOR, &color);
 304     gcv.function = GXxor;
 305     /* this will raise the probability of the XORed color being different
 306      * of the original color in PseudoColor when not all color cells are
 307      * initialized */
 308     if (DefaultVisual(dpy, scr->screen)->class==PseudoColor)
 309         gcv.plane_mask = (1<<(scr->depth-1))|1;
 310     else
 311         gcv.plane_mask = AllPlanes;
 312     gcv.foreground = color.pixel;
 313     if (gcv.foreground == 0)
 314         gcv.foreground = 1;
 315     gcv.line_width = DEF_FRAME_THICKNESS;
 316     gcv.subwindow_mode = IncludeInferiors;
 317     gcv.graphics_exposures = False;
 318     scr->frame_gc = XCreateGC(dpy, scr->root_win, GCForeground|GCGraphicsExposures
 319                               |GCFunction|GCSubwindowMode|GCLineWidth
 320                               |GCPlaneMask, &gcv);
 321
 322     /* line GC */
 323     gcv.foreground = color.pixel;
 324
 325     if (gcv.foreground == 0)
 326         /* XOR:ing with a zero is not going to be of much use, so
 327            in that case, we somewhat arbitrarily xor with 17 instead. */
 328         gcv.foreground = 17;
 329
 330     gcv.function = GXxor;
 331     gcv.subwindow_mode = IncludeInferiors;
 332     gcv.line_width = 1;
 333     gcv.cap_style = CapRound;
 334     gcv.graphics_exposures = False;
 335     gcm = GCForeground|GCFunction|GCSubwindowMode|GCLineWidth|GCCapStyle
 336         |GCGraphicsExposures;
 337     scr->line_gc = XCreateGC(dpy, scr->root_win, gcm, &gcv);
 338
 339     scr->line_pixel = gcv.foreground;
 340
 341     /* copy GC */
 342     gcv.foreground = scr->white_pixel;
 343     gcv.background = scr->black_pixel;
 344     gcv.graphics_exposures = False;
 345     scr->copy_gc = XCreateGC(dpy, scr->w_win, GCForeground|GCBackground
 346                              |GCGraphicsExposures, &gcv);
 347
 348     /* window title text GC */
 349     gcv.graphics_exposures = False;
 350     scr->window_title_gc = XCreateGC(dpy, scr->w_win,GCGraphicsExposures,&gcv);
 351
 352     /* icon title GC */
 353     scr->icon_title_gc = XCreateGC(dpy, scr->w_win, GCGraphicsExposures, &gcv);
 354
 355     /* clip title GC */
 356     scr->clip_title_gc = XCreateGC(dpy, scr->w_win, GCGraphicsExposures, &gcv);
 357
 358     /* move/size display GC */
 359     gcv.graphics_exposures = False;
 360     gcm = GCGraphicsExposures;
 361     scr->info_text_gc = XCreateGC(dpy, scr->w_win, gcm, &gcv);
 362
 363     /* misc drawing GC */
 364     gcv.graphics_exposures = False;
 365     gcm = GCGraphicsExposures;
 366     scr->draw_gc = XCreateGC(dpy, scr->w_win, gcm, &gcv);
 367
 368     assert (scr->stipple_bitmap!=None);
 369
 370
 371     /* mono GC */
 372     scr->mono_gc = XCreateGC(dpy, scr->stipple_bitmap, gcm, &gcv);
 373 }
 374
 375
 376
 377 static void
 378 createPixmaps(WScreen *scr)
 379 {
 380     WPixmap *pix;
 381     WMPixmap *wmpix;
 382     RImage *image;
 383     Pixmap p, m;
 384
 385     /* load pixmaps */
 386     pix = wPixmapCreateFromXBMData(scr, (char*)MENU_RADIO_INDICATOR_XBM_DATA,
 387                                    (char*)MENU_RADIO_INDICATOR_XBM_DATA,
 388                                    MENU_RADIO_INDICATOR_XBM_SIZE,
 389                                    MENU_RADIO_INDICATOR_XBM_SIZE,
 390                                    scr->black_pixel, scr->white_pixel);
 391     if (pix!=NULL)
 392       pix->shared = 1;
 393     scr->menu_radio_indicator = pix;
 394
 395
 396     pix = wPixmapCreateFromXBMData(scr, (char*)MENU_CHECK_INDICATOR_XBM_DATA,
 397                                    (char*)MENU_CHECK_INDICATOR_XBM_DATA,
 398                                    MENU_CHECK_INDICATOR_XBM_SIZE,
 399                                    MENU_CHECK_INDICATOR_XBM_SIZE,
 400                                    scr->black_pixel, scr->white_pixel);
 401     if (pix!=NULL)
 402       pix->shared = 1;
 403     scr->menu_check_indicator = pix;
 404
 405     pix = wPixmapCreateFromXBMData(scr, (char*)MENU_MINI_INDICATOR_XBM_DATA,
 406                                    (char*)MENU_MINI_INDICATOR_XBM_DATA,
 407                                    MENU_MINI_INDICATOR_XBM_SIZE,
 408                                    MENU_MINI_INDICATOR_XBM_SIZE,
 409                                    scr->black_pixel, scr->white_pixel);
 410     if (pix!=NULL)
 411       pix->shared = 1;
 412     scr->menu_mini_indicator = pix;
 413
 414     pix = wPixmapCreateFromXBMData(scr, (char*)MENU_HIDE_INDICATOR_XBM_DATA,
 415                                    (char*)MENU_HIDE_INDICATOR_XBM_DATA,
 416                                    MENU_HIDE_INDICATOR_XBM_SIZE,
 417                                    MENU_HIDE_INDICATOR_XBM_SIZE,
 418                                    scr->black_pixel, scr->white_pixel);
 419     if (pix!=NULL)
 420       pix->shared = 1;
 421     scr->menu_hide_indicator = pix;
 422
 423     pix = wPixmapCreateFromXBMData(scr, (char*)MENU_SHADE_INDICATOR_XBM_DATA,
 424                                   (char*)MENU_SHADE_INDICATOR_XBM_DATA,
 425                                   MENU_SHADE_INDICATOR_XBM_SIZE,
 426                                   MENU_SHADE_INDICATOR_XBM_SIZE,
 427                                   scr->black_pixel, scr->white_pixel);
 428     if (pix!=NULL)
 429       pix->shared = 1;
 430     scr->menu_shade_indicator = pix;
 431
 432
 433     image = wDefaultGetImage(scr, "Logo", "WMPanel");
 434
 435     if (!image) {
 436         wwarning(_("could not load logo image for panels: %s"),
 437                  RMessageForError(RErrorCode));
 438     } else {
 439         if (!RConvertImageMask(scr->rcontext, image, &p, &m, 128)) {
 440             wwarning(_("error making logo image for panel:%s"), RMessageForError(RErrorCode));
 441         } else {
 442             wmpix = WMCreatePixmapFromXPixmaps(scr->wmscreen, p, m,
 443                                                image->width, image->height,
 444                                                scr->depth);
 445             WMSetApplicationIconImage(scr->wmscreen, wmpix);
 446             WMReleasePixmap(wmpix);
 447         }
 448         RDestroyImage(image);
 449     }
 450
 451     scr->dock_dots = make3Dots(scr);
 452
 453 #ifndef NEWSTUFF
 454     /* titlebar button pixmaps */
 455     allocButtonPixmaps(scr);
 456 #endif
 457 }
 458
 459
 460 /*
 461  *----------------------------------------------------------------------
 462  * createInternalWindows--
 463  *      Creates some windows used internally by the program. One to
 464  * receive input focus when no other window can get it and another
 465  * to display window geometry information during window resize/move.
 466  *
 467  * Returns:
 468  *      Nothing
 469  *
 470  * Side effects:
 471  *      Windows are created and some colors are allocated for the
 472  * window background.
 473  *----------------------------------------------------------------------
 474  */
 475 static void
 476 createInternalWindows(WScreen *scr)
 477 {
 478     int vmask;
 479     XSetWindowAttributes attribs;
 480
 481     /* window for displaying geometry information during resizes and moves */
 482     vmask = CWBorderPixel|CWBackPixmap|CWBackPixel|CWCursor|CWSaveUnder|CWOverrideRedirect;
 483     attribs.border_pixel = 0;
 484     attribs.save_under = True;
 485     attribs.override_redirect = True;
 486     attribs.cursor = wCursor[WCUR_DEFAULT];
 487     attribs.background_pixmap = None;
 488     if (scr->widget_texture)
 489         attribs.background_pixel = scr->widget_texture->normal.pixel;
 490     else
 491         attribs.background_pixel = scr->light_pixel;
 492     vmask |= CWColormap;
 493     attribs.colormap = scr->w_colormap;
 494
 495     wGetGeometryWindowSize(scr, &scr->geometry_display_width,
 496                            &scr->geometry_display_height);
 497     scr->geometry_display =
 498       XCreateWindow(dpy, scr->root_win, 1, 1,
 499                     scr->geometry_display_width,
 500                     scr->geometry_display_height,
 501                     1, scr->w_depth, CopyFromParent, scr->w_visual,
 502                     vmask, &attribs);
 503
 504     /* InputOnly window to get the focus when no other window can get it */
 505     vmask = CWEventMask|CWOverrideRedirect;
 506     attribs.event_mask = KeyPressMask|FocusChangeMask;
 507     attribs.override_redirect = True;
 508     scr->no_focus_win=XCreateWindow(dpy,scr->root_win,-10, -10, 4, 4, 0, 0,
 509                                     InputOnly,CopyFromParent, vmask, &attribs);
 510     XSelectInput(dpy, scr->no_focus_win, KeyPressMask|KeyReleaseMask);
 511     XMapWindow(dpy, scr->no_focus_win);
 512
 513     XSetInputFocus(dpy, scr->no_focus_win, RevertToParent, CurrentTime);
 514
 515     /* shadow window for dock buttons */
 516     vmask = CWBorderPixel|CWBackPixmap|CWBackPixel|CWCursor|CWSaveUnder|CWOverrideRedirect;
 517     attribs.border_pixel = 0;
 518     attribs.save_under = True;
 519     attribs.override_redirect = True;
 520     attribs.background_pixmap = None;
 521     attribs.background_pixel = scr->white_pixel;
 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     XkbSelectEvents(dpy,XkbUseCoreKbd,XkbIndicatorStateNotifyMask,
 698                                             XkbIndicatorStateNotifyMask);
 699 #endif /* KEEP_XKB_LOCK_STATUS */
 700
 701     XSync(dpy, False);
 702     XSetErrorHandler(oldHandler);
 703
 704     if (CantManageScreen) {
 705         free(scr);
 706         return NULL;
 707     }
 708
 709     XDefineCursor(dpy, scr->root_win, wCursor[WCUR_DEFAULT]);
 710
 711     /* screen descriptor for raster graphic library */
 712     rattr.flags = RC_RenderMode | RC_ColorsPerChannel;
 713     rattr.render_mode = wPreferences.no_dithering
 714                                 ? RBestMatchRendering
 715                                 : RDitheredRendering;
 716
 717     rattr.colors_per_channel = wPreferences.cmap_size;
 718     if (rattr.colors_per_channel<2)
 719         rattr.colors_per_channel = 2;
 720
 721     if (wVisualID>=0) {
 722         rattr.flags |= RC_VisualID;
 723         rattr.visualid = wVisualID;
 724     }
 725     scr->rcontext = RCreateContext(dpy, screen_number, &rattr);
 726     if (!scr->rcontext) {
 727         wwarning(_("could not initialize graphics library context: %s"),
 728                  RMessageForError(RErrorCode));
 729         wAbort(False);
 730     } else {
 731         char **formats;
 732         int i = 0;
 733
 734         formats = RSupportedFileFormats();
 735         if (formats) {
 736             for (i=0; formats[i]!=NULL; i++) {
 737                 if (strcmp(formats[i], "TIFF")==0) {
 738                     scr->flags.supports_tiff = 1;
 739                     break;
 740                 }
 741             }
 742         }
 743     }
 744
 745     scr->w_win = scr->rcontext->drawable;
 746     scr->w_visual = scr->rcontext->visual;
 747     scr->w_depth = scr->rcontext->depth;
 748     scr->w_colormap = scr->rcontext->cmap;
 749
 750     scr->black_pixel = scr->rcontext->black;
 751     scr->white_pixel = scr->rcontext->white;
 752
 753     /* create screen descriptor for WINGs */
 754     scr->wmscreen = WMCreateScreenWithRContext(dpy, screen_number,
 755                                                scr->rcontext);
 756
 757     if (!scr->wmscreen) {
 758         wfatal(_("could not do initialization of WINGs widget set"));
 759
 760         return NULL;
 761     }
 762
 763     color = WMGrayColor(scr->wmscreen);
 764     scr->light_pixel = WMColorPixel(color);
 765     WMReleaseColor(color);
 766
 767     color = WMDarkGrayColor(scr->wmscreen);
 768     scr->dark_pixel = WMColorPixel(color);
 769     WMReleaseColor(color);
 770
 771     {
 772         XColor xcol;
 773         /* frame boder color */
 774         wGetColor(scr, FRAME_BORDER_COLOR, &xcol);
 775         scr->frame_border_pixel = xcol.pixel;
 776     }
 777
 778     /* create GCs with default values */
 779     allocGCs(scr);
 780
 781     /* read defaults for this screen */
 782     wReadDefaults(scr, WDWindowMaker->dictionary);
 783
 784     createInternalWindows(scr);
 785
 786 #ifdef KWM_HINTS
 787     wKWMInitStuff(scr);
 788 #endif
 789
 790 #ifdef GNOME_STUFF
 791     wGNOMEInitStuff(scr);
 792 #endif
 793
 794 #ifdef OLWM_HINTS
 795     wOLWMInitStuff(scr);
 796 #endif
 797
 798     /* create initial workspace */
 799     wWorkspaceNew(scr);
 800
 801     /* create shared pixmaps */
 802     createPixmaps(scr);
 803
 804     /* set icon sizes we can accept from clients */
 805     icon_size[0].min_width = 8;
 806     icon_size[0].min_height = 8;
 807     icon_size[0].max_width = wPreferences.icon_size-4;
 808     icon_size[0].max_height = wPreferences.icon_size-4;
 809     icon_size[0].width_inc = 1;
 810     icon_size[0].height_inc = 1;
 811     XSetIconSizes(dpy, scr->root_win, icon_size, 1);
 812
 813     /* setup WindowMaker protocols property in the root window*/
 814     PropSetWMakerProtocols(scr->root_win);
 815
 816     /* setup our noticeboard */
 817     XChangeProperty(dpy, scr->info_window, _XA_WINDOWMAKER_NOTICEBOARD,
 818                     XA_WINDOW, 32, PropModeReplace,
 819                     (unsigned char*)&scr->info_window, 1);
 820     XChangeProperty(dpy, scr->root_win, _XA_WINDOWMAKER_NOTICEBOARD,
 821                     XA_WINDOW, 32, PropModeReplace,
 822                     (unsigned char*)&scr->info_window, 1);
 823
 824
 825 #ifdef BALLOON_TEXT
 826     /* initialize balloon text stuff */
 827     wBalloonInitialize(scr);
 828 #endif
 829
 830     wScreenUpdateUsableArea(scr);
 831
 832 #ifndef LITE
 833     /* kluge to load menu configurations at startup */
 834     OpenRootMenu(scr, -10000, -10000, False);
 835     wMenuUnmap(scr->root_menu);
 836 #endif
 837
 838     return scr;
 839 }
 840
 841
 842 void
 843 wScreenUpdateUsableArea(WScreen *scr)
 844 {
 845 #ifdef GNOME_STUFF
 846     WReservedArea *area;
 847 #endif
 848
 849     scr->totalUsableArea = scr->usableArea;
 850
 851
 852     if (scr->dock && (!scr->dock->lowered
 853                       || wPreferences.no_window_over_dock)) {
 854
 855         int offset = wPreferences.icon_size + DOCK_EXTRA_SPACE;
 856
 857         if (scr->dock->on_right_side) {
 858             scr->totalUsableArea.x2 = WMIN(scr->totalUsableArea.x2,
 859                                           scr->scr_width - offset);
 860         } else {
 861             scr->totalUsableArea.x1 = WMAX(scr->totalUsableArea.x1, offset);
 862         }
 863     }
 864
 865     if (wPreferences.no_window_over_icons) {
 866         if (wPreferences.icon_yard & IY_VERT) {
 867
 868             if (!(wPreferences.icon_yard & IY_RIGHT)) {
 869                 scr->totalUsableArea.x1 += wPreferences.icon_size;
 870             } else {
 871                 scr->totalUsableArea.x2 -= wPreferences.icon_size;
 872             }
 873         } else {
 874
 875             if (wPreferences.icon_yard & IY_TOP) {
 876                 scr->totalUsableArea.y1 += wPreferences.icon_size;
 877             } else {
 878                 scr->totalUsableArea.y2 -= wPreferences.icon_size;
 879             }
 880         }
 881     }
 882
 883 #ifdef KWM_HINTS
 884     {
 885         WArea area;
 886
 887         if (wKWMGetUsableArea(scr, &area)) {
 888             scr->totalUsableArea.x1 = WMAX(scr->totalUsableArea.x1, area.x1);
 889             scr->totalUsableArea.y1 = WMAX(scr->totalUsableArea.y1, area.y1);
 890             scr->totalUsableArea.x2 = WMIN(scr->totalUsableArea.x2, area.x2);
 891             scr->totalUsableArea.y2 = WMIN(scr->totalUsableArea.y2, area.y2);
 892         }
 893     }
 894 #endif
 895
 896 #ifdef GNOME_STUFF
 897     area = scr->reservedAreas;
 898
 899     while (area) {
 900         int th, bh;
 901         int lw, rw;
 902         int w, h;
 903
 904         w = area->area.x2 - area->area.x1;
 905         h = area->area.y2 - area->area.y1;
 906
 907         th = area->area.y1;
 908         bh = scr->scr_height - area->area.y2;
 909         lw = area->area.x1;
 910         rw = scr->scr_width - area->area.x2;
 911
 912         if (WMIN(th, bh) < WMIN(lw, rw)) {
 913             /* horizontal */
 914             if (th < bh) {
 915                 /* on top */
 916                 if (scr->totalUsableArea.y1 < area->area.y2)
 917                     scr->totalUsableArea.y1 = area->area.y2;
 918             } else {
 919                 /* on bottom */
 920                 if (scr->totalUsableArea.y2 > area->area.y1)
 921                     scr->totalUsableArea.y2 = area->area.y1;
 922             }
 923         } else {
 924             /* vertical */
 925             if (lw < rw) {
 926                 /* on left */
 927                 if (scr->totalUsableArea.x1 < area->area.x2)
 928                     scr->totalUsableArea.x1 = area->area.x2;
 929             } else {
 930                 /* on right */
 931                 if (scr->totalUsableArea.x2 > area->area.x1)
 932                     scr->totalUsableArea.x2 = area->area.x1;
 933             }
 934         }
 935
 936         area = area->next;
 937     }
 938 #endif /* GNOME_STUFF */
 939
 940     if (scr->totalUsableArea.x2 - scr->totalUsableArea.x1 < scr->scr_width/2) {
 941         scr->totalUsableArea.x2 = scr->usableArea.x2;
 942         scr->totalUsableArea.x1 = scr->usableArea.x1;
 943     }
 944     if (scr->totalUsableArea.y2 - scr->totalUsableArea.y1 < scr->scr_height/2) {
 945         scr->totalUsableArea.y2 = scr->usableArea.y2;
 946         scr->totalUsableArea.y1 = scr->usableArea.y1;
 947     }
 948
 949 #ifdef not_used
 950 #ifdef KWM_HINTS
 951     {
 952         int i;
 953
 954         for (i = 0; i < scr->workspace_count; i++) {
 955             wKWMSetUsableAreaHint(scr, i);
 956         }
 957     }
 958 #endif
 959 #endif
 960 }
 961
 962
 963 void
 964 wScreenRestoreState(WScreen *scr)
 965 {
 966     proplist_t state;
 967     char *path;
 968
 969     make_keys();
 970
 971     if (wScreenCount == 1)
 972         path = wdefaultspathfordomain("WMState");
 973     else {
 974         char buf[16];
 975         sprintf(buf, "WMState.%i", scr->screen);
 976         path = wdefaultspathfordomain(buf);
 977     }
 978     scr->session_state = PLGetProplistWithPath(path);
 979     free(path);
 980     if (!scr->session_state && wScreenCount>1) {
 981         char buf[16];
 982         sprintf(buf, "WMState.%i", scr->screen);
 983         path = wdefaultspathfordomain(buf);
 984         scr->session_state = PLGetProplistWithPath(path);
 985         free(path);
 986     }
 987
 988     if (!wPreferences.flags.noclip) {
 989         state = PLGetDictionaryEntry(scr->session_state, dClip);
 990         scr->clip_icon = wClipRestoreState(scr, state);
 991     }
 992
 993     wWorkspaceRestoreState(scr);
 994
 995     if (!wPreferences.flags.nodock) {
 996         state = PLGetDictionaryEntry(scr->session_state, dDock);
 997         scr->dock = wDockRestoreState(scr, state, WM_DOCK);
 998     }
 999
1000     wScreenUpdateUsableArea(scr);
1001 }
1002
1003
1004 void
1005 wScreenSaveState(WScreen *scr)
1006 {
1007     WWorkspaceState wstate;
1008     WWindow *wwin;
1009     char *str;
1010     proplist_t path, old_state, foo;
1011     CARD32 data[2];
1012
1013
1014     make_keys();
1015
1016 /*
1017  * Save current workspace, so can go back to it upon restart.
1018  */
1019     wstate.workspace = scr->current_workspace;
1020
1021     data[0] = wstate.flags;
1022     data[1] = wstate.workspace;
1023
1024     XChangeProperty(dpy, scr->root_win, _XA_WINDOWMAKER_STATE,
1025                     _XA_WINDOWMAKER_STATE, 32, PropModeReplace,
1026                     (unsigned char *) data, 2);
1027
1028     /* save state of windows */
1029     wwin = scr->focused_window;
1030     while (wwin) {
1031         wWindowSaveState(wwin);
1032         wwin = wwin->prev;
1033     }
1034
1035
1036     if (wPreferences.flags.noupdates)
1037         return;
1038
1039
1040     old_state = scr->session_state;
1041     scr->session_state = PLMakeDictionaryFromEntries(NULL, NULL, NULL);
1042
1043     PLSetStringCmpHook(NULL);
1044
1045     /* save dock state to file */
1046     if (!wPreferences.flags.nodock) {
1047         wDockSaveState(scr);
1048     } else {
1049         if ((foo = PLGetDictionaryEntry(old_state, dDock))!=NULL) {
1050             PLInsertDictionaryEntry(scr->session_state, dDock, foo);
1051         }
1052     }
1053     if (!wPreferences.flags.noclip) {
1054         wClipSaveState(scr);
1055     } else {
1056         if ((foo = PLGetDictionaryEntry(old_state, dClip))!=NULL) {
1057             PLInsertDictionaryEntry(scr->session_state, dClip, foo);
1058         }
1059     }
1060
1061     wWorkspaceSaveState(scr, old_state);
1062
1063     if (wPreferences.save_session_on_exit) {
1064         wSessionSaveState(scr);
1065     } else {
1066         if ((foo = PLGetDictionaryEntry(old_state, dApplications))!=NULL) {
1067             PLInsertDictionaryEntry(scr->session_state, dApplications, foo);
1068         }
1069         if ((foo = PLGetDictionaryEntry(old_state, dWorkspace))!=NULL) {
1070             PLInsertDictionaryEntry(scr->session_state, dWorkspace, foo);
1071         }
1072     }
1073
1074     /* clean up */
1075     PLSetStringCmpHook(StringCompareHook);
1076
1077     wMenuSaveState(scr);
1078
1079     if (wScreenCount == 1)
1080         str = wdefaultspathfordomain("WMState");
1081     else {
1082         char buf[16];
1083         sprintf(buf, "WMState.%i", scr->screen);
1084         str = wdefaultspathfordomain(buf);
1085     }
1086     path = PLMakeString(str);
1087     free(str);
1088     PLSetFilename(scr->session_state, path);
1089     if (!PLSave(scr->session_state, YES)) {
1090         wwarning(_("could not save session state in %s"), PLGetString(path));
1091     }
1092     PLRelease(path);
1093     PLRelease(old_state);
1094 }
1095
1096
1097
1098 int
1099 wScreenBringInside(WScreen *scr, int *x, int *y, int width, int height)
1100 {
1101     int moved = 0;
1102     int tol_w, tol_h;
1103
1104     if (width > 20)
1105         tol_w = width/2;
1106     else
1107         tol_w = 20;
1108
1109     if (height > 20)
1110         tol_h = height/2;
1111     else
1112         tol_h = 20;
1113
1114     if (*x+width < 10)
1115         *x = -tol_w, moved = 1;
1116     else if (*x >= scr->scr_width - 10)
1117         *x = scr->scr_width - tol_w - 1, moved = 1;
1118
1119     if (*y < -height + 10)
1120         *y = -tol_h, moved = 1;
1121     else if (*y >= scr->scr_height - 10)
1122         *y = scr->scr_height - tol_h - 1, moved = 1;
1123
1124     return moved;
1125 }
1126
1127