src/screen.c

   1 /* screen.c - screen management
   2  *
   3  *  Window Maker window manager
   4  *
   5  *  Copyright (c) 1997-2003 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 along
  18  *  with this program; if not, write to the Free Software Foundation, Inc.,
  19  *  51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  20  */
  21
  22 #include "wconfig.h"
  23
  24 #include <stdio.h>
  25 #include <stdlib.h>
  26 #include <string.h>
  27
  28 #include <X11/Xlib.h>
  29 #include <X11/Xutil.h>
  30 #include <X11/Xatom.h>
  31 #ifdef KEEP_XKB_LOCK_STATUS
  32 #include <X11/XKBlib.h>
  33 #endif                          /* KEEP_XKB_LOCK_STATUS */
  34 #ifdef USE_RANDR
  35 #include <X11/extensions/Xrandr.h>
  36 #endif
  37
  38 #include <wraster.h>
  39 #include "WindowMaker.h"
  40 #include "def_pixmaps.h"
  41 #include "screen.h"
  42 #include "texture.h"
  43 #include "pixmap.h"
  44 #include "menu.h"
  45 #include "window.h"
  46 #include "main.h"
  47 #include "actions.h"
  48 #include "properties.h"
  49 #include "dock.h"
  50 #include "resources.h"
  51 #include "workspace.h"
  52 #include "session.h"
  53 #include "balloon.h"
  54 #include "geomview.h"
  55 #include "wmspec.h"
  56 #include "rootmenu.h"
  57
  58 #include "xinerama.h"
  59
  60 #include <WINGs/WUtil.h>
  61
  62 #include "defaults.h"
  63
  64 #define EVENT_MASK (LeaveWindowMask|EnterWindowMask|PropertyChangeMask\
  65     |SubstructureNotifyMask|PointerMotionMask \
  66     |SubstructureRedirectMask|ButtonPressMask|ButtonReleaseMask\
  67     |KeyPressMask|KeyReleaseMask)
  68
  69 #define STIPPLE_WIDTH 2
  70 #define STIPPLE_HEIGHT 2
  71 static char STIPPLE_DATA[] = { 0x02, 0x01 };
  72
  73 static int CantManageScreen = 0;
  74
  75 static WMPropList *dApplications = NULL;
  76 static WMPropList *dWorkspace;
  77 static WMPropList *dDock;
  78 static WMPropList *dClip;
  79 static WMPropList *dDrawers = NULL;
  80
  81 static void make_keys(void)
  82 {
  83         if (dApplications != NULL)
  84                 return;
  85
  86         dApplications = WMCreatePLString("Applications");
  87         dWorkspace = WMCreatePLString("Workspace");
  88         dDock = WMCreatePLString("Dock");
  89         dClip = WMCreatePLString("Clip");
  90         dDrawers = WMCreatePLString("Drawers");
  91 }
  92
  93 /*
  94  *----------------------------------------------------------------------
  95  * alreadyRunningError--
  96  *      X error handler used to catch errors when trying to do
  97  * XSelectInput() on the root window. These errors probably mean that
  98  * there already is some other window manager running.
  99  *
 100  * Returns:
 101  *      Nothing, unless something really evil happens...
 102  *
 103  * Side effects:
 104  *      CantManageScreen is set to 1;
 105  *----------------------------------------------------------------------
 106  */
 107 static int alreadyRunningError(Display * dpy, XErrorEvent * error)
 108 {
 109         /* Parameter not used, but tell the compiler that it is ok */
 110         (void) dpy;
 111         (void) error;
 112
 113         CantManageScreen = 1;
 114         return -1;
 115 }
 116
 117 /*
 118  *----------------------------------------------------------------------
 119  * allocButtonPixmaps--
 120  *      Allocate pixmaps used on window operation buttons (those in the
 121  * titlebar). The pixmaps are linked to the program. If XPM is supported
 122  * XPM pixmaps are used otherwise, equivalent bitmaps are used.
 123  *
 124  * Returns:
 125  *      Nothing
 126  *
 127  * Side effects:
 128  *      Allocates shared pixmaps for the screen. These pixmaps should
 129  * not be freed by anybody.
 130  *----------------------------------------------------------------------
 131  */
 132 static void allocButtonPixmaps(WScreen * scr)
 133 {
 134         WPixmap *pix;
 135
 136         /* create predefined pixmaps */
 137         if (wPreferences.new_style == TS_NEXT) {
 138                 pix = wPixmapCreateFromXPMData(scr, NEXT_CLOSE_XPM);
 139         } else {
 140                 pix = wPixmapCreateFromXPMData(scr, PRED_CLOSE_XPM);
 141         }
 142         if (pix)
 143                 pix->shared = 1;
 144         scr->b_pixmaps[WBUT_CLOSE] = pix;
 145
 146         if (wPreferences.new_style == TS_NEXT) {
 147                 pix = wPixmapCreateFromXPMData(scr, NEXT_BROKEN_CLOSE_XPM);
 148         } else {
 149                 pix = wPixmapCreateFromXPMData(scr, PRED_BROKEN_CLOSE_XPM);
 150         }
 151         if (pix)
 152                 pix->shared = 1;
 153         scr->b_pixmaps[WBUT_BROKENCLOSE] = pix;
 154
 155         if (wPreferences.new_style == TS_NEXT) {
 156                 pix = wPixmapCreateFromXPMData(scr, NEXT_ICONIFY_XPM);
 157         } else {
 158                 pix = wPixmapCreateFromXPMData(scr, PRED_ICONIFY_XPM);
 159         }
 160         if (pix)
 161                 pix->shared = 1;
 162         scr->b_pixmaps[WBUT_ICONIFY] = pix;
 163 #ifdef XKB_BUTTON_HINT
 164         if (wPreferences.new_style == TS_NEXT) {
 165                 pix = wPixmapCreateFromXPMData(scr, NEXT_XKBGROUP1_XPM);
 166         } else {
 167                 pix = wPixmapCreateFromXPMData(scr, PRED_XKBGROUP1_XPM);
 168         }
 169         if (pix)
 170                 pix->shared = 1;
 171         scr->b_pixmaps[WBUT_XKBGROUP1] = pix;
 172         if (wPreferences.new_style == TS_NEXT) {
 173                 pix = wPixmapCreateFromXPMData(scr, NEXT_XKBGROUP2_XPM);
 174         } else {
 175                 pix = wPixmapCreateFromXPMData(scr, PRED_XKBGROUP2_XPM);
 176         }
 177         if (pix)
 178                 pix->shared = 1;
 179         scr->b_pixmaps[WBUT_XKBGROUP2] = pix;
 180         if (wPreferences.new_style == TS_NEXT) {
 181                 pix = wPixmapCreateFromXPMData(scr, NEXT_XKBGROUP3_XPM);
 182         } else {
 183                 pix = wPixmapCreateFromXPMData(scr, PRED_XKBGROUP3_XPM);
 184         }
 185         if (pix)
 186                 pix->shared = 1;
 187         scr->b_pixmaps[WBUT_XKBGROUP3] = pix;
 188         if (wPreferences.new_style == TS_NEXT) {
 189                 pix = wPixmapCreateFromXPMData(scr, NEXT_XKBGROUP4_XPM);
 190         } else {
 191                 pix = wPixmapCreateFromXPMData(scr, PRED_XKBGROUP4_XPM);
 192         }
 193         if (pix)
 194                 pix->shared = 1;
 195         scr->b_pixmaps[WBUT_XKBGROUP4] = pix;
 196 #endif
 197
 198         if (wPreferences.new_style == TS_NEXT) {
 199                 pix = wPixmapCreateFromXPMData(scr, NEXT_KILL_XPM);
 200         } else {
 201                 pix = wPixmapCreateFromXPMData(scr, PRED_KILL_XPM);
 202         }
 203         if (pix)
 204                 pix->shared = 1;
 205         scr->b_pixmaps[WBUT_KILL] = pix;
 206 }
 207
 208 static void draw_dot(WScreen * scr, Drawable d, int x, int y, GC gc)
 209 {
 210         XSetForeground(dpy, gc, scr->black_pixel);
 211         XDrawLine(dpy, d, gc, x, y, x + 1, y);
 212         XDrawPoint(dpy, d, gc, x, y + 1);
 213         XSetForeground(dpy, gc, scr->white_pixel);
 214         XDrawLine(dpy, d, gc, x + 2, y, x + 2, y + 1);
 215         XDrawPoint(dpy, d, gc, x + 1, y + 1);
 216 }
 217
 218 static WPixmap *make3Dots(WScreen * scr)
 219 {
 220         WPixmap *wpix;
 221         GC gc2, gc;
 222         XGCValues gcv;
 223         Pixmap pix, mask;
 224
 225         gc = scr->copy_gc;
 226         pix = XCreatePixmap(dpy, scr->w_win, wPreferences.icon_size, wPreferences.icon_size, scr->w_depth);
 227         XSetForeground(dpy, gc, scr->black_pixel);
 228         XFillRectangle(dpy, pix, gc, 0, 0, wPreferences.icon_size, wPreferences.icon_size);
 229         XSetForeground(dpy, gc, scr->white_pixel);
 230         draw_dot(scr, pix, 4, wPreferences.icon_size - 6, gc);
 231         draw_dot(scr, pix, 9, wPreferences.icon_size - 6, gc);
 232         draw_dot(scr, pix, 14, wPreferences.icon_size - 6, gc);
 233
 234         mask = XCreatePixmap(dpy, scr->w_win, wPreferences.icon_size, wPreferences.icon_size, 1);
 235         gcv.foreground = 0;
 236         gcv.graphics_exposures = False;
 237         gc2 = XCreateGC(dpy, mask, GCForeground | GCGraphicsExposures, &gcv);
 238         XFillRectangle(dpy, mask, gc2, 0, 0, wPreferences.icon_size, wPreferences.icon_size);
 239         XSetForeground(dpy, gc2, 1);
 240         XFillRectangle(dpy, mask, gc2, 4, wPreferences.icon_size - 6, 3, 2);
 241         XFillRectangle(dpy, mask, gc2, 9, wPreferences.icon_size - 6, 3, 2);
 242         XFillRectangle(dpy, mask, gc2, 14, wPreferences.icon_size - 6, 3, 2);
 243
 244         XFreeGC(dpy, gc2);
 245
 246         wpix = wPixmapCreate(pix, mask);
 247         wpix->shared = 1;
 248
 249         return wpix;
 250 }
 251
 252 static void allocGCs(WScreen * scr)
 253 {
 254         XGCValues gcv;
 255         XColor color;
 256         int gcm;
 257
 258         scr->stipple_bitmap = XCreateBitmapFromData(dpy, scr->w_win, STIPPLE_DATA, STIPPLE_WIDTH, STIPPLE_HEIGHT);
 259
 260         gcv.stipple = scr->stipple_bitmap;
 261         gcv.foreground = scr->white_pixel;
 262         gcv.fill_style = FillStippled;
 263         gcv.graphics_exposures = False;
 264         gcm = GCForeground | GCStipple | GCFillStyle | GCGraphicsExposures;
 265         scr->stipple_gc = XCreateGC(dpy, scr->w_win, gcm, &gcv);
 266
 267         /* selected icon border GCs */
 268         gcv.function = GXcopy;
 269         gcv.foreground = scr->white_pixel;
 270         gcv.background = scr->black_pixel;
 271         gcv.line_width = 1;
 272         gcv.line_style = LineDoubleDash;
 273         gcv.fill_style = FillSolid;
 274         gcv.dash_offset = 0;
 275         gcv.dashes = 4;
 276         gcv.graphics_exposures = False;
 277
 278         gcm = GCFunction | GCGraphicsExposures;
 279         gcm |= GCForeground | GCBackground;
 280         gcm |= GCLineWidth | GCLineStyle;
 281         gcm |= GCFillStyle;
 282         gcm |= GCDashOffset | GCDashList;
 283
 284         scr->icon_select_gc = XCreateGC(dpy, scr->w_win, gcm, &gcv);
 285
 286         scr->menu_title_color[0] = WMRetainColor(scr->white);
 287
 288         /* don't retain scr->black here because we may alter its alpha */
 289         scr->mtext_color = WMCreateRGBColor(scr->wmscreen, 0, 0, 0, True);
 290         scr->dtext_color = WMCreateRGBColor(scr->wmscreen, 0, 0, 0, True);
 291
 292         /* frame GC */
 293         wGetColor(scr, DEF_FRAME_COLOR, &color);
 294         gcv.function = GXxor;
 295         /* this will raise the probability of the XORed color being different
 296          * of the original color in PseudoColor when not all color cells are
 297          * initialized */
 298         if (DefaultVisual(dpy, scr->screen)->class == PseudoColor)
 299                 gcv.plane_mask = (1 << (scr->depth - 1)) | 1;
 300         else
 301                 gcv.plane_mask = AllPlanes;
 302         gcv.foreground = color.pixel;
 303         if (gcv.foreground == 0)
 304                 gcv.foreground = 1;
 305         gcv.line_width = DEF_FRAME_THICKNESS;
 306         gcv.subwindow_mode = IncludeInferiors;
 307         gcv.graphics_exposures = False;
 308         scr->frame_gc = XCreateGC(dpy, scr->root_win, GCForeground | GCGraphicsExposures
 309                                   | GCFunction | GCSubwindowMode | GCLineWidth | GCPlaneMask, &gcv);
 310
 311         /* line GC */
 312         gcv.foreground = color.pixel;
 313
 314         if (gcv.foreground == 0)
 315                 /* XOR:ing with a zero is not going to be of much use, so
 316                    in that case, we somewhat arbitrarily xor with 17 instead. */
 317                 gcv.foreground = 17;
 318
 319         gcv.function = GXxor;
 320         gcv.subwindow_mode = IncludeInferiors;
 321         gcv.line_width = 1;
 322         gcv.cap_style = CapRound;
 323         gcv.graphics_exposures = False;
 324         gcm = GCForeground | GCFunction | GCSubwindowMode | GCLineWidth | GCCapStyle | GCGraphicsExposures;
 325         scr->line_gc = XCreateGC(dpy, scr->root_win, gcm, &gcv);
 326
 327         scr->line_pixel = gcv.foreground;
 328
 329         /* copy GC */
 330         gcv.foreground = scr->white_pixel;
 331         gcv.background = scr->black_pixel;
 332         gcv.graphics_exposures = False;
 333         scr->copy_gc = XCreateGC(dpy, scr->w_win, GCForeground | GCBackground | GCGraphicsExposures, &gcv);
 334
 335         /* misc drawing GC */
 336         gcv.graphics_exposures = False;
 337         gcm = GCGraphicsExposures;
 338         scr->draw_gc = XCreateGC(dpy, scr->w_win, gcm, &gcv);
 339
 340         assert(scr->stipple_bitmap != None);
 341
 342         /* mono GC */
 343         scr->mono_gc = XCreateGC(dpy, scr->stipple_bitmap, gcm, &gcv);
 344 }
 345
 346 static void createPixmaps(WScreen * scr)
 347 {
 348         WPixmap *pix;
 349
 350         /* load pixmaps */
 351         pix = wPixmapCreateFromXBMData(scr, (char *)MENU_RADIO_INDICATOR_XBM_DATA,
 352                                        (char *)MENU_RADIO_INDICATOR_XBM_DATA,
 353                                        MENU_RADIO_INDICATOR_XBM_SIZE,
 354                                        MENU_RADIO_INDICATOR_XBM_SIZE, scr->black_pixel, scr->white_pixel);
 355         if (pix != NULL)
 356                 pix->shared = 1;
 357         scr->menu_radio_indicator = pix;
 358
 359         pix = wPixmapCreateFromXBMData(scr, (char *)MENU_CHECK_INDICATOR_XBM_DATA,
 360                                        (char *)MENU_CHECK_INDICATOR_XBM_DATA,
 361                                        MENU_CHECK_INDICATOR_XBM_SIZE,
 362                                        MENU_CHECK_INDICATOR_XBM_SIZE, scr->black_pixel, scr->white_pixel);
 363         if (pix != NULL)
 364                 pix->shared = 1;
 365         scr->menu_check_indicator = pix;
 366
 367         pix = wPixmapCreateFromXBMData(scr, (char *)MENU_MINI_INDICATOR_XBM_DATA,
 368                                        (char *)MENU_MINI_INDICATOR_XBM_DATA,
 369                                        MENU_MINI_INDICATOR_XBM_SIZE,
 370                                        MENU_MINI_INDICATOR_XBM_SIZE, scr->black_pixel, scr->white_pixel);
 371         if (pix != NULL)
 372                 pix->shared = 1;
 373         scr->menu_mini_indicator = pix;
 374
 375         pix = wPixmapCreateFromXBMData(scr, (char *)MENU_HIDE_INDICATOR_XBM_DATA,
 376                                        (char *)MENU_HIDE_INDICATOR_XBM_DATA,
 377                                        MENU_HIDE_INDICATOR_XBM_SIZE,
 378                                        MENU_HIDE_INDICATOR_XBM_SIZE, scr->black_pixel, scr->white_pixel);
 379         if (pix != NULL)
 380                 pix->shared = 1;
 381         scr->menu_hide_indicator = pix;
 382
 383         pix = wPixmapCreateFromXBMData(scr, (char *)MENU_SHADE_INDICATOR_XBM_DATA,
 384                                        (char *)MENU_SHADE_INDICATOR_XBM_DATA,
 385                                        MENU_SHADE_INDICATOR_XBM_SIZE,
 386                                        MENU_SHADE_INDICATOR_XBM_SIZE, scr->black_pixel, scr->white_pixel);
 387         if (pix != NULL)
 388                 pix->shared = 1;
 389         scr->menu_shade_indicator = pix;
 390
 391         create_logo_image(scr);
 392
 393         scr->dock_dots = make3Dots(scr);
 394
 395         /* titlebar button pixmaps */
 396         allocButtonPixmaps(scr);
 397 }
 398
 399 void create_logo_image(WScreen *scr)
 400 {
 401         RImage *image = get_icon_image(scr, "Logo", "WMPanel", 128);
 402
 403         if (!image) {
 404                 wwarning(_("could not load logo image for panels: %s"), RMessageForError(RErrorCode));
 405         } else {
 406                 WMSetApplicationIconImage(scr->wmscreen, image);
 407                 RReleaseImage(image);
 408         }
 409 }
 410
 411 /*
 412  *----------------------------------------------------------------------
 413  * createInternalWindows--
 414  *      Creates some windows used internally by the program. One to
 415  * receive input focus when no other window can get it and another
 416  * to display window geometry information during window resize/move.
 417  *
 418  * Returns:
 419  *      Nothing
 420  *
 421  * Side effects:
 422  *      Windows are created and some colors are allocated for the
 423  * window background.
 424  *----------------------------------------------------------------------
 425  */
 426 static void createInternalWindows(WScreen * scr)
 427 {
 428         int vmask;
 429         XSetWindowAttributes attribs;
 430
 431         /* InputOnly window to get the focus when no other window can get it */
 432         vmask = CWEventMask | CWOverrideRedirect;
 433         attribs.event_mask = KeyPressMask | FocusChangeMask;
 434         attribs.override_redirect = True;
 435         scr->no_focus_win = XCreateWindow(dpy, scr->root_win, -10, -10, 4, 4, 0, 0,
 436                                           InputOnly, CopyFromParent, vmask, &attribs);
 437         XSelectInput(dpy, scr->no_focus_win, KeyPressMask | KeyReleaseMask);
 438         XMapWindow(dpy, scr->no_focus_win);
 439
 440         XSetInputFocus(dpy, scr->no_focus_win, RevertToParent, CurrentTime);
 441
 442         /* shadow window for dock buttons */
 443         vmask = CWBorderPixel | CWBackPixmap | CWBackPixel | CWCursor | CWSaveUnder | CWOverrideRedirect;
 444         attribs.border_pixel = scr->black_pixel;
 445         attribs.save_under = True;
 446         attribs.override_redirect = True;
 447         attribs.background_pixmap = None;
 448         attribs.background_pixel = scr->white_pixel;
 449         attribs.cursor = wPreferences.cursor[WCUR_NORMAL];
 450         vmask |= CWColormap;
 451         attribs.colormap = scr->w_colormap;
 452         scr->dock_shadow =
 453             XCreateWindow(dpy, scr->root_win, 0, 0, wPreferences.icon_size,
 454                           wPreferences.icon_size, 0, scr->w_depth, CopyFromParent, scr->w_visual, vmask, &attribs);
 455
 456         /* workspace name */
 457         vmask = CWBackPixel | CWSaveUnder | CWOverrideRedirect | CWColormap | CWBorderPixel;
 458         attribs.save_under = True;
 459         attribs.override_redirect = True;
 460         attribs.colormap = scr->w_colormap;
 461         attribs.background_pixel = scr->icon_back_texture->normal.pixel;
 462         attribs.border_pixel = 0;       /* do not care */
 463         scr->workspace_name =
 464             XCreateWindow(dpy, scr->root_win, 0, 0, 10, 10, 0, scr->w_depth,
 465                           CopyFromParent, scr->w_visual, vmask, &attribs);
 466 }
 467
 468 /*
 469  *----------------------------------------------------------------------
 470  * wScreenInit--
 471  *      Initializes the window manager for the given screen and
 472  * allocates a WScreen descriptor for it. Many resources are allocated
 473  * for the screen and the root window is setup appropriately.
 474  *
 475  * Returns:
 476  *      The WScreen descriptor for the screen.
 477  *
 478  * Side effects:
 479  *      Many resources are allocated and the IconSize property is
 480  * set on the root window.
 481  *      The program can be aborted if some fatal error occurs.
 482  *
 483  * TODO: User specifiable visual.
 484  *----------------------------------------------------------------------
 485  */
 486 WScreen *wScreenInit(int screen_number)
 487 {
 488         WScreen *scr;
 489         XIconSize icon_size[1];
 490         RContextAttributes rattr;
 491         long event_mask;
 492         XErrorHandler oldHandler;
 493         int i;
 494
 495         scr = wmalloc(sizeof(WScreen));
 496
 497         scr->stacking_list = WMCreateTreeBag();
 498
 499         /* initialize globals */
 500         scr->screen = screen_number;
 501         scr->root_win = RootWindow(dpy, screen_number);
 502         scr->depth = DefaultDepth(dpy, screen_number);
 503         scr->colormap = DefaultColormap(dpy, screen_number);
 504
 505         scr->scr_width = WidthOfScreen(ScreenOfDisplay(dpy, screen_number));
 506         scr->scr_height = HeightOfScreen(ScreenOfDisplay(dpy, screen_number));
 507
 508         wInitXinerama(scr);
 509
 510         scr->usableArea = (WArea *) wmalloc(sizeof(WArea) * wXineramaHeads(scr));
 511         scr->totalUsableArea = (WArea *) wmalloc(sizeof(WArea) * wXineramaHeads(scr));
 512
 513         for (i = 0; i < wXineramaHeads(scr); ++i) {
 514                 WMRect rect = wGetRectForHead(scr, i);
 515                 scr->usableArea[i].x1 = scr->totalUsableArea[i].x1 = rect.pos.x;
 516                 scr->usableArea[i].y1 = scr->totalUsableArea[i].y1 = rect.pos.y;
 517                 scr->usableArea[i].x2 = scr->totalUsableArea[i].x2 = rect.pos.x + rect.size.width;
 518                 scr->usableArea[i].y2 = scr->totalUsableArea[i].y2 = rect.pos.y + rect.size.height;
 519         }
 520
 521         scr->fakeGroupLeaders = WMCreateArray(16);
 522
 523         CantManageScreen = 0;
 524         oldHandler = XSetErrorHandler(alreadyRunningError);
 525
 526         event_mask = EVENT_MASK;
 527         XSelectInput(dpy, scr->root_win, event_mask);
 528
 529 #ifdef KEEP_XKB_LOCK_STATUS
 530         /* Only GroupLock doesn't work correctly in my system since right-alt
 531          * can change mode while holding it too - ]d
 532          */
 533         if (w_global.xext.xkb.supported) {
 534                 XkbSelectEvents(dpy, XkbUseCoreKbd, XkbStateNotifyMask, XkbStateNotifyMask);
 535         }
 536 #endif                          /* KEEP_XKB_LOCK_STATUS */
 537
 538 #ifdef USE_RANDR
 539         if (w_global.xext.randr.supported)
 540                 XRRSelectInput(dpy, scr->root_win, RRScreenChangeNotifyMask);
 541 #endif
 542
 543         XSync(dpy, False);
 544         XSetErrorHandler(oldHandler);
 545
 546         if (CantManageScreen) {
 547                 wfree(scr);
 548                 return NULL;
 549         }
 550
 551         XDefineCursor(dpy, scr->root_win, wPreferences.cursor[WCUR_ROOT]);
 552
 553         /* screen descriptor for raster graphic library */
 554         rattr.flags = RC_RenderMode | RC_ColorsPerChannel | RC_StandardColormap;
 555         rattr.render_mode = wPreferences.no_dithering ? RBestMatchRendering : RDitheredRendering;
 556
 557         /* if the std colormap stuff works ok, this will be ignored */
 558         rattr.colors_per_channel = wPreferences.cmap_size;
 559         if (rattr.colors_per_channel < 2)
 560                 rattr.colors_per_channel = 2;
 561
 562         /* Use standard colormap */
 563         rattr.standard_colormap_mode = RUseStdColormap;
 564
 565         if (getWVisualID(screen_number) >= 0) {
 566                 rattr.flags |= RC_VisualID;
 567                 rattr.visualid = getWVisualID(screen_number);
 568         }
 569
 570         scr->rcontext = RCreateContext(dpy, screen_number, &rattr);
 571
 572         if (!scr->rcontext && RErrorCode == RERR_STDCMAPFAIL) {
 573                 wwarning("%s", RMessageForError(RErrorCode));
 574
 575                 rattr.flags &= ~RC_StandardColormap;
 576                 rattr.standard_colormap_mode = RUseStdColormap;
 577
 578                 scr->rcontext = RCreateContext(dpy, screen_number, &rattr);
 579         }
 580
 581         scr->w_win = scr->rcontext->drawable;
 582         scr->w_visual = scr->rcontext->visual;
 583         scr->w_depth = scr->rcontext->depth;
 584         scr->w_colormap = scr->rcontext->cmap;
 585
 586         /* create screen descriptor for WINGs */
 587         scr->wmscreen = WMCreateScreenWithRContext(dpy, screen_number, scr->rcontext);
 588
 589         if (!scr->wmscreen) {
 590                 wfatal(_("could not initialize WINGs widget set"));
 591                 RDestroyContext(scr->rcontext);
 592                 WMFreeArray(scr->fakeGroupLeaders);
 593                 wfree(scr->totalUsableArea);
 594                 wfree(scr->usableArea);
 595                 WMFreeBag(scr->stacking_list);
 596                 wfree(scr);
 597                 return NULL;
 598         }
 599
 600         scr->black = WMBlackColor(scr->wmscreen);
 601         scr->white = WMWhiteColor(scr->wmscreen);
 602         scr->gray = WMGrayColor(scr->wmscreen);
 603         scr->darkGray = WMDarkGrayColor(scr->wmscreen);
 604
 605         scr->black_pixel = WMColorPixel(scr->black);    /*scr->rcontext->black; */
 606         scr->white_pixel = WMColorPixel(scr->white);    /*scr->rcontext->white; */
 607         scr->light_pixel = WMColorPixel(scr->gray);
 608         scr->dark_pixel = WMColorPixel(scr->darkGray);
 609
 610         /* create GCs with default values */
 611         allocGCs(scr);
 612
 613         /* for our window manager info notice board. Need to
 614          * create before reading the defaults, because it will be used there.
 615          */
 616         scr->info_window = XCreateSimpleWindow(dpy, scr->root_win, 0, 0, 10, 10, 0, 0, 0);
 617
 618         /* read defaults for this screen */
 619         wReadDefaults(scr, w_global.domain.wmaker->dictionary);
 620
 621         {
 622                 XColor xcol;
 623                 /* frame boder color */
 624                 wGetColor(scr, WMGetColorRGBDescription(scr->frame_border_color), &xcol);
 625                 scr->frame_border_pixel = xcol.pixel;
 626                 wGetColor(scr, WMGetColorRGBDescription(scr->frame_focused_border_color), &xcol);
 627                 scr->frame_focused_border_pixel = xcol.pixel;
 628                 wGetColor(scr, WMGetColorRGBDescription(scr->frame_selected_border_color), &xcol);
 629                 scr->frame_selected_border_pixel = xcol.pixel;
 630         }
 631
 632         createInternalWindows(scr);
 633
 634         wNETWMInitStuff(scr);
 635
 636         /* create initial workspace */
 637         wWorkspaceNew(scr);
 638
 639         /* create shared pixmaps */
 640         createPixmaps(scr);
 641
 642         /* set icon sizes we can accept from clients */
 643         icon_size[0].min_width = 8;
 644         icon_size[0].min_height = 8;
 645         icon_size[0].max_width = wPreferences.icon_size - 4;
 646         icon_size[0].max_height = wPreferences.icon_size - 4;
 647         icon_size[0].width_inc = 1;
 648         icon_size[0].height_inc = 1;
 649         XSetIconSizes(dpy, scr->root_win, icon_size, 1);
 650
 651         /* setup WindowMaker protocols property in the root window */
 652         PropSetWMakerProtocols(scr->root_win);
 653
 654         /* setup our noticeboard */
 655         XChangeProperty(dpy, scr->info_window, w_global.atom.wmaker.noticeboard,
 656                         XA_WINDOW, 32, PropModeReplace, (unsigned char *)&scr->info_window, 1);
 657         XChangeProperty(dpy, scr->root_win, w_global.atom.wmaker.noticeboard,
 658                         XA_WINDOW, 32, PropModeReplace, (unsigned char *)&scr->info_window, 1);
 659
 660 #ifdef BALLOON_TEXT
 661         /* initialize balloon text stuff */
 662         wBalloonInitialize(scr);
 663 #endif
 664
 665         scr->info_text_font = WMBoldSystemFontOfSize(scr->wmscreen, 12);
 666
 667         scr->tech_draw_font = XLoadQueryFont(dpy, "-adobe-helvetica-bold-r-*-*-12-*-*-*-*-*-*-*");
 668         if (!scr->tech_draw_font)
 669                 scr->tech_draw_font = XLoadQueryFont(dpy, "fixed");
 670
 671         scr->gview = WCreateGeometryView(scr->wmscreen);
 672         WMRealizeWidget(scr->gview);
 673
 674         wScreenUpdateUsableArea(scr);
 675
 676         return scr;
 677 }
 678
 679 void wScreenUpdateUsableArea(WScreen *scr)
 680 {
 681         /*
 682          * scr->totalUsableArea[] will become the usableArea used for Windowplacement,
 683          * scr->usableArea[] will be used for iconplacement, hence no iconyard nor
 684          * border.
 685          */
 686
 687         WArea area;
 688         int i;
 689         unsigned long tmp_area, best_area = 0;
 690         unsigned int size = wPreferences.workspace_border_size;
 691         unsigned int position = wPreferences.workspace_border_position;
 692
 693         for (i = 0; i < wXineramaHeads(scr); ++i) {
 694                 WMRect rect = wGetRectForHead(scr, i);
 695                 scr->totalUsableArea[i].x1 = rect.pos.x;
 696                 scr->totalUsableArea[i].y1 = rect.pos.y;
 697                 scr->totalUsableArea[i].x2 = rect.pos.x + rect.size.width;
 698                 scr->totalUsableArea[i].y2 = rect.pos.y + rect.size.height;
 699
 700                 if (wNETWMGetUsableArea(scr, i, &area)) {
 701                         scr->totalUsableArea[i].x1 = WMAX(scr->totalUsableArea[i].x1, area.x1);
 702                         scr->totalUsableArea[i].y1 = WMAX(scr->totalUsableArea[i].y1, area.y1);
 703                         scr->totalUsableArea[i].x2 = WMIN(scr->totalUsableArea[i].x2, area.x2);
 704                         scr->totalUsableArea[i].y2 = WMIN(scr->totalUsableArea[i].y2, area.y2);
 705                 }
 706
 707                 scr->usableArea[i] = scr->totalUsableArea[i];
 708
 709                 if (wPreferences.no_window_over_icons) {
 710                         if (wPreferences.icon_yard & IY_VERT) {
 711                                 if (wPreferences.icon_yard & IY_RIGHT)
 712                                         scr->totalUsableArea[i].x2 -= wPreferences.icon_size;
 713                                 else
 714                                         scr->totalUsableArea[i].x1 += wPreferences.icon_size;
 715                         } else {
 716                                 if (wPreferences.icon_yard & IY_TOP)
 717                                         scr->totalUsableArea[i].y1 += wPreferences.icon_size;
 718                                 else
 719                                         scr->totalUsableArea[i].y2 -= wPreferences.icon_size;
 720                         }
 721                 }
 722
 723                 if (scr->totalUsableArea[i].x2 - scr->totalUsableArea[i].x1 < rect.size.width / 2) {
 724                         scr->totalUsableArea[i].x1 = rect.pos.x;
 725                         scr->totalUsableArea[i].x2 = rect.pos.x + rect.size.width;
 726                 }
 727
 728                 if (scr->totalUsableArea[i].y2 - scr->totalUsableArea[i].y1 < rect.size.height / 2) {
 729                         scr->totalUsableArea[i].y1 = rect.pos.y;
 730                         scr->totalUsableArea[i].y2 = rect.pos.y + rect.size.height;
 731                 }
 732
 733                 tmp_area = (scr->totalUsableArea[i].x2 - scr->totalUsableArea[i].x1) *
 734                     (scr->totalUsableArea[i].y2 - scr->totalUsableArea[i].y1);
 735
 736                 if (tmp_area > best_area) {
 737                         best_area = tmp_area;
 738                         area = scr->totalUsableArea[i];
 739                 }
 740
 741                 if (size > 0 && position != WB_NONE) {
 742                         if (position & WB_LEFTRIGHT) {
 743                                 scr->totalUsableArea[i].x1 += size;
 744                                 scr->totalUsableArea[i].x2 -= size;
 745                         }
 746                         if (position & WB_TOPBOTTOM) {
 747                                 scr->totalUsableArea[i].y1 += size;
 748                                 scr->totalUsableArea[i].y2 -= size;
 749                         }
 750                 }
 751         }
 752
 753         if (wPreferences.auto_arrange_icons)
 754                 wArrangeIcons(scr, True);
 755 }
 756
 757 void wScreenRestoreState(WScreen * scr)
 758 {
 759         WMPropList *state;
 760         char *path;
 761
 762         OpenRootMenu(scr, -10000, -10000, False);
 763         wMenuUnmap(scr->root_menu);
 764
 765         make_keys();
 766
 767         if (w_global.screen_count == 1) {
 768                 path = wdefaultspathfordomain("WMState");
 769         } else {
 770                 char buf[16];
 771                 snprintf(buf, sizeof(buf), "WMState.%i", scr->screen);
 772                 path = wdefaultspathfordomain(buf);
 773         }
 774
 775         w_global.session_state = WMReadPropListFromFile(path);
 776         wfree(path);
 777         if (!w_global.session_state && w_global.screen_count > 1) {
 778                 path = wdefaultspathfordomain("WMState");
 779                 w_global.session_state = WMReadPropListFromFile(path);
 780                 wfree(path);
 781         }
 782
 783         if (!w_global.session_state)
 784                 w_global.session_state = WMCreatePLDictionary(NULL, NULL);
 785
 786         if (!wPreferences.flags.nodock) {
 787                 state = WMGetFromPLDictionary(w_global.session_state, dDock);
 788                 scr->dock = wDockRestoreState(scr, state, WM_DOCK);
 789         }
 790
 791         if (!wPreferences.flags.noclip) {
 792                 state = WMGetFromPLDictionary(w_global.session_state, dClip);
 793                 w_global.clip.icon = wClipRestoreState(scr, state);
 794         }
 795
 796         if (!wPreferences.flags.nodrawer) {
 797                 if (!scr->dock->on_right_side) {
 798                         /* Drawer tile was created early in wScreenInit() -> wReadDefaults(). At
 799                          * that time, scr->dock was NULL and the tile was created as if we were on
 800                          * the right side. If we aren't, redo it now. */
 801                         assert(scr->drawer_tile);
 802                         RReleaseImage(scr->drawer_tile);
 803                         scr->drawer_tile = wDrawerMakeTile(scr, scr->icon_tile);
 804                 }
 805                 wDrawersRestoreState(scr);
 806         }
 807
 808         wWorkspaceRestoreState(scr);
 809         wScreenUpdateUsableArea(scr);
 810 }
 811
 812 void wScreenSaveState(WScreen * scr)
 813 {
 814         WWindow *wwin;
 815         char *str;
 816         WMPropList *old_state, *foo;
 817
 818         make_keys();
 819
 820         /* save state of windows */
 821         wwin = scr->focused_window;
 822         while (wwin) {
 823                 wWindowSaveState(wwin);
 824                 wwin = wwin->prev;
 825         }
 826
 827         if (wPreferences.flags.noupdates)
 828                 return;
 829
 830         old_state = w_global.session_state;
 831         w_global.session_state = WMCreatePLDictionary(NULL, NULL);
 832
 833         WMPLSetCaseSensitive(True);
 834
 835         /* save dock state to file */
 836         if (!wPreferences.flags.nodock) {
 837                 wDockSaveState(scr, old_state);
 838         } else {
 839                 if ((foo = WMGetFromPLDictionary(old_state, dDock)) != NULL) {
 840                         WMPutInPLDictionary(w_global.session_state, dDock, foo);
 841                 }
 842         }
 843         if (!wPreferences.flags.noclip) {
 844                 wClipSaveState();
 845         } else {
 846                 if ((foo = WMGetFromPLDictionary(old_state, dClip)) != NULL) {
 847                         WMPutInPLDictionary(w_global.session_state, dClip, foo);
 848                 }
 849         }
 850
 851         wWorkspaceSaveState(old_state);
 852
 853         if (!wPreferences.flags.nodrawer) {
 854                 wDrawersSaveState(scr);
 855         } else {
 856                 if ((foo = WMGetFromPLDictionary(old_state, dDrawers)) != NULL) {
 857                         WMPutInPLDictionary(w_global.session_state, dDrawers, foo);
 858                 }
 859         }
 860
 861
 862         if (wPreferences.save_session_on_exit) {
 863                 wSessionSaveState(scr);
 864         } else {
 865                 if ((foo = WMGetFromPLDictionary(old_state, dApplications)) != NULL) {
 866                         WMPutInPLDictionary(w_global.session_state, dApplications, foo);
 867                 }
 868                 if ((foo = WMGetFromPLDictionary(old_state, dWorkspace)) != NULL) {
 869                         WMPutInPLDictionary(w_global.session_state, dWorkspace, foo);
 870                 }
 871         }
 872
 873         /* clean up */
 874         WMPLSetCaseSensitive(False);
 875
 876         wMenuSaveState(scr);
 877
 878         if (w_global.screen_count == 1) {
 879                 str = wdefaultspathfordomain("WMState");
 880         } else {
 881                 char buf[16];
 882                 snprintf(buf, sizeof(buf), "WMState.%i", scr->screen);
 883                 str = wdefaultspathfordomain(buf);
 884         }
 885         if (!WMWritePropListToFile(w_global.session_state, str)) {
 886                 werror(_("could not save session state in %s"), str);
 887         }
 888         wfree(str);
 889         WMReleasePropList(old_state);
 890 }
 891
 892 int wScreenBringInside(WScreen * scr, int *x, int *y, int width, int height)
 893 {
 894         int moved = 0;
 895         int tol_w, tol_h;
 896         /*
 897          * With respect to the head that contains most of the window.
 898          */
 899         int sx1, sy1, sx2, sy2;
 900
 901         WMRect rect;
 902         int head, flags;
 903
 904         rect.pos.x = *x;
 905         rect.pos.y = *y;
 906         rect.size.width = width;
 907         rect.size.height = height;
 908
 909         head = wGetRectPlacementInfo(scr, rect, &flags);
 910         rect = wGetRectForHead(scr, head);
 911
 912         sx1 = rect.pos.x;
 913         sy1 = rect.pos.y;
 914         sx2 = sx1 + rect.size.width;
 915         sy2 = sy1 + rect.size.height;
 916
 917 #if 0                           /* NOTE: gives funky group movement */
 918         if (flags & XFLAG_MULTIPLE) {
 919                 /*
 920                  * since we span multiple heads, pull window totaly inside
 921                  */
 922                 if (*x < sx1)
 923                         *x = sx1, moved = 1;
 924                 else if (*x + width > sx2)
 925                         *x = sx2 - width, moved = 1;
 926
 927                 if (*y < sy1)
 928                         *y = sy1, moved = 1;
 929                 else if (*y + height > sy2)
 930                         *y = sy2 - height, moved = 1;
 931
 932                 return moved;
 933         }
 934 #endif
 935
 936         if (width > 20)
 937                 tol_w = width / 2;
 938         else
 939                 tol_w = 20;
 940
 941         if (height > 20)
 942                 tol_h = height / 2;
 943         else
 944                 tol_h = 20;
 945
 946         if (*x + width < sx1 + 10)
 947                 *x = sx1 - tol_w, moved = 1;
 948         else if (*x >= sx2 - 10)
 949                 *x = sx2 - tol_w - 1, moved = 1;
 950
 951         if (*y < sy1 - height + 10)
 952                 *y = sy1 - tol_h, moved = 1;
 953         else if (*y >= sy2 - 10)
 954                 *y = sy2 - tol_h - 1, moved = 1;
 955
 956         return moved;
 957 }
 958
 959 int wScreenKeepInside(WScreen * scr, int *x, int *y, int width, int height)
 960 {
 961         int moved = 0;
 962         int sx1, sy1, sx2, sy2;
 963         WMRect rect;
 964         int head;
 965
 966         rect.pos.x = *x;
 967         rect.pos.y = *y;
 968         rect.size.width = width;
 969         rect.size.height = height;
 970
 971         head = wGetHeadForRect(scr, rect);
 972         rect = wGetRectForHead(scr, head);
 973
 974         sx1 = rect.pos.x;
 975         sy1 = rect.pos.y;
 976         sx2 = sx1 + rect.size.width;
 977         sy2 = sy1 + rect.size.height;
 978
 979         if (*x < sx1)
 980                 *x = sx1, moved = 1;
 981         else if (*x + width > sx2)
 982                 *x = sx2 - width, moved = 1;
 983
 984         if (*y < sy1)
 985                 *y = sy1, moved = 1;
 986         else if (*y + height > sy2)
 987                 *y = sy2 - height, moved = 1;
 988
 989         return moved;
 990 }