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