2001-05-30 11:36:31 -04:00
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/* Metacity X screen handler */
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/*
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* Copyright (C) 2001 Havoc Pennington
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation; either version 2 of the
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* License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
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* 02111-1307, USA.
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*/
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2001-05-31 02:42:58 -04:00
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2001-05-30 11:36:31 -04:00
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#include "screen.h"
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#include "util.h"
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2001-05-30 23:30:58 -04:00
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#include "errors.h"
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2001-05-31 02:42:58 -04:00
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#include "window.h"
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2001-05-31 23:00:01 -04:00
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#include "colors.h"
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2001-06-02 21:33:27 -04:00
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#include "uislave.h"
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2001-06-03 14:33:59 -04:00
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#include "frame.h"
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2001-06-06 00:47:37 -04:00
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#include "workspace.h"
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#include "keybindings.h"
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2001-05-31 23:00:01 -04:00
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2001-06-02 00:14:18 -04:00
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#include <X11/cursorfont.h>
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2001-05-31 23:00:01 -04:00
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#include <locale.h>
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#include <string.h>
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2001-05-30 11:36:31 -04:00
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2001-06-02 21:33:27 -04:00
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static void ui_slave_func (MetaUISlave *uislave,
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MetaMessage *message,
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gpointer data);
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static char* get_screen_name (MetaDisplay *display,
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int number);
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2001-05-30 11:36:31 -04:00
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MetaScreen*
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meta_screen_new (MetaDisplay *display,
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int number)
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{
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MetaScreen *screen;
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2001-05-30 23:30:58 -04:00
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Window xroot;
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Display *xdisplay;
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2001-05-31 02:42:58 -04:00
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Cursor cursor;
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2001-06-03 17:39:57 -04:00
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XGCValues vals;
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2001-05-31 02:42:58 -04:00
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2001-05-30 23:30:58 -04:00
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/* Only display->name, display->xdisplay, and display->error_traps
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* can really be used in this function, since normally screens are
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* created from the MetaDisplay constructor
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*/
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xdisplay = display->xdisplay;
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meta_verbose ("Trying screen %d on display '%s'\n",
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number, display->name);
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xroot = RootWindow (xdisplay, number);
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/* FVWM checks for None here, I don't know if this
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* ever actually happens
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*/
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if (xroot == None)
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{
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meta_warning (_("Screen %d on display '%s' is invalid\n"),
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number, display->name);
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return NULL;
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}
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/* Select our root window events */
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meta_error_trap_push (display);
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XSelectInput (xdisplay,
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xroot,
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SubstructureRedirectMask | SubstructureNotifyMask |
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ColormapChangeMask | PropertyChangeMask |
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LeaveWindowMask | EnterWindowMask |
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ButtonPressMask | ButtonReleaseMask);
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if (meta_error_trap_pop (display) != Success)
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{
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meta_warning (_("Screen %d on display '%s' already has a window manager\n"),
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number, display->name);
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return NULL;
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}
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2001-05-31 02:42:58 -04:00
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cursor = XCreateFontCursor (display->xdisplay, XC_left_ptr);
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XDefineCursor (display->xdisplay, xroot, cursor);
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XFreeCursor (display->xdisplay, cursor);
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2001-05-30 11:36:31 -04:00
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screen = g_new (MetaScreen, 1);
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2001-05-31 02:42:58 -04:00
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screen->display = display;
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2001-05-30 11:36:31 -04:00
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screen->number = number;
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2001-06-02 21:33:27 -04:00
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screen->screen_name = get_screen_name (display, number);
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2001-05-30 23:30:58 -04:00
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screen->xscreen = ScreenOfDisplay (xdisplay, number);
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screen->xroot = xroot;
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2001-05-31 23:00:01 -04:00
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screen->pango_context = NULL;
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2001-06-02 21:33:27 -04:00
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2001-05-31 23:00:01 -04:00
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screen->engine = &meta_default_engine;
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2001-06-02 21:33:27 -04:00
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2001-06-06 00:47:37 -04:00
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screen->showing_tooltip = FALSE;
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/* Screens must have at least one workspace at all times,
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* so create that required workspace.
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*/
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screen->active_workspace = meta_workspace_new (screen);
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2001-06-06 22:42:24 -04:00
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/* FIXME, for now there are always 6 workspaces... */
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meta_workspace_new (screen);
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meta_workspace_new (screen);
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meta_workspace_new (screen);
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meta_workspace_new (screen);
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2001-06-06 00:47:37 -04:00
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meta_workspace_new (screen);
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2001-06-03 14:33:59 -04:00
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meta_screen_init_visual_info (screen);
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meta_screen_init_ui_colors (screen);
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2001-06-03 17:39:57 -04:00
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2001-06-06 00:47:37 -04:00
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meta_screen_grab_keys (screen);
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2001-06-03 17:39:57 -04:00
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screen->scratch_gc = XCreateGC (screen->display->xdisplay,
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screen->xroot,
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0,
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&vals);
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2001-06-03 14:33:59 -04:00
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2001-06-02 21:33:27 -04:00
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screen->uislave = meta_ui_slave_new (screen->screen_name,
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ui_slave_func,
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screen);
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2001-05-31 23:00:01 -04:00
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2001-06-02 21:33:27 -04:00
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meta_verbose ("Added screen %d ('%s') root 0x%lx\n",
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screen->number, screen->screen_name, screen->xroot);
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2001-05-30 11:36:31 -04:00
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return screen;
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}
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void
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meta_screen_free (MetaScreen *screen)
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{
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2001-06-06 00:47:37 -04:00
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meta_screen_ungrab_keys (screen);
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2001-06-02 21:33:27 -04:00
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meta_ui_slave_free (screen->uislave);
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2001-06-03 17:39:57 -04:00
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XFreeGC (screen->display->xdisplay,
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screen->scratch_gc);
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2001-05-31 23:00:01 -04:00
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if (screen->pango_context)
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g_object_unref (G_OBJECT (screen->pango_context));
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2001-06-02 21:33:27 -04:00
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g_free (screen->screen_name);
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2001-05-30 11:36:31 -04:00
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g_free (screen);
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}
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2001-05-31 02:42:58 -04:00
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void
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meta_screen_manage_all_windows (MetaScreen *screen)
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{
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Window ignored1, ignored2;
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Window *children;
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unsigned int n_children;
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int i;
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/* Must grab server to avoid obvious race condition */
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meta_display_grab (screen->display);
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meta_error_trap_push (screen->display);
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XQueryTree (screen->display->xdisplay,
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screen->xroot,
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&ignored1, &ignored2, &children, &n_children);
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2001-05-30 11:36:31 -04:00
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2001-05-31 02:42:58 -04:00
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if (meta_error_trap_pop (screen->display))
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{
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meta_display_ungrab (screen->display);
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return;
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}
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i = 0;
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while (i < n_children)
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{
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meta_window_new (screen->display, children[i]);
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++i;
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}
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meta_display_ungrab (screen->display);
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if (children)
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XFree (children);
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}
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2001-05-31 23:00:01 -04:00
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static GC
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get_gc_func (PangoContext *context, PangoColor *color, GC base_gc)
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{
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MetaScreen *screen;
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GC new_gc;
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XGCValues vals;
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int copy_mask = (GCFunction | GCPlaneMask | GCForeground | GCBackground |
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GCLineWidth | GCLineStyle | GCCapStyle | GCJoinStyle |
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GCFillStyle | GCFillRule | GCTile | GCStipple | GCTileStipXOrigin |
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GCTileStipYOrigin | GCFont | GCSubwindowMode |
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GCGraphicsExposures | GCClipXOrigin | GCClipYOrigin |
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GCDashOffset | GCArcMode);
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screen = g_object_get_data (G_OBJECT (context), "meta-screen");
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new_gc = XCreateGC (screen->display->xdisplay,
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screen->xroot,
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0,
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&vals);
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XCopyGC (screen->display->xdisplay, base_gc, copy_mask, new_gc);
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vals.foreground = meta_screen_get_x_pixel (screen, color);
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XChangeGC (screen->display->xdisplay, new_gc, GCForeground, &vals);
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return new_gc;
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}
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static void
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free_gc_func (PangoContext *context, GC gc)
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{
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MetaScreen *screen;
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screen = g_object_get_data (G_OBJECT (context), "meta-screen");
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XFreeGC (screen->display->xdisplay, gc);
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}
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static char*
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get_default_language (void)
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{
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/* Copied from GTK, Copyright 2001 Red Hat Inc. */
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gchar *lang;
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gchar *p;
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lang = g_strdup (setlocale (LC_CTYPE, NULL));
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p = strchr (lang, '.');
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if (p)
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*p = '\0';
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p = strchr (lang, '@');
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if (p)
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*p = '\0';
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return lang;
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}
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PangoContext*
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meta_screen_get_pango_context (MetaScreen *screen,
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const PangoFontDescription *desc,
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PangoDirection direction)
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{
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if (screen->pango_context == NULL)
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{
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PangoContext *ctx;
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char *lang;
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/* Copied from GDK, Copyright 2001 Red Hat, Inc. */
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#ifdef HAVE_XFT
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static int use_xft = -1;
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if (use_xft == -1)
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{
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char *val = g_getenv ("META_USE_XFT");
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use_xft = val && (atoi (val) != 0);
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}
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if (use_xft)
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ctx = pango_xft_get_context (screen->display, screen->number);
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else
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#endif /* HAVE_XFT */
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ctx = pango_x_get_context (screen->display->xdisplay);
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g_object_set_data (G_OBJECT (ctx), "meta-screen", screen);
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pango_x_context_set_funcs (ctx, get_gc_func, free_gc_func);
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lang = get_default_language ();
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pango_context_set_lang (ctx, lang);
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g_free (lang);
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/* FIXME these two lines are wrong;
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* we should be storing a context for each direction/desc,
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* so that the args to meta_screen_get_pango_context()
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* are honored.
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*/
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pango_context_set_base_dir (ctx, direction);
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pango_context_set_font_description (ctx, desc);
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screen->pango_context = ctx;
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}
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return screen->pango_context;
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}
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MetaScreen*
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meta_screen_for_x_screen (Screen *xscreen)
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{
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MetaDisplay *display;
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display = meta_display_for_x_display (DisplayOfScreen (xscreen));
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if (display == NULL)
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return NULL;
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return meta_display_screen_for_x_screen (display, xscreen);
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}
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2001-06-02 21:33:27 -04:00
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static void
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ui_slave_func (MetaUISlave *uislave,
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MetaMessage *message,
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gpointer data)
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{
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switch (message->header.message_code)
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{
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case MetaMessageCheckCode:
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meta_verbose ("Received UI slave check message version: %s host alias: %s messages version: %d\n",
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message->check.metacity_version,
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message->check.host_alias,
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message->check.messages_version);
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if (strcmp (message->check.metacity_version, VERSION) != 0 ||
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strcmp (message->check.host_alias, HOST_ALIAS) != 0 ||
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message->check.messages_version != META_MESSAGES_VERSION)
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{
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meta_warning ("metacity-uislave has the wrong version; must use the one compiled with metacity\n");
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meta_ui_slave_disable (uislave);
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}
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break;
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default:
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meta_verbose ("Received unhandled message from UI slave: %d\n",
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message->header.message_code);
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break;
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}
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}
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static char*
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get_screen_name (MetaDisplay *display,
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int number)
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{
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char *p;
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char *dname;
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char *scr;
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/* DisplayString gives us a sort of canonical display,
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* vs. the user-entered name from XDisplayName()
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*/
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dname = g_strdup (DisplayString (display->xdisplay));
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/* Change display name to specify this screen.
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*/
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p = strrchr (dname, ':');
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if (p)
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{
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p = strchr (p, '.');
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if (p)
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*p = '\0';
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}
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|
|
|
|
|
|
scr = g_strdup_printf ("%s.%d", dname, number);
|
|
|
|
|
|
|
|
g_free (dname);
|
|
|
|
|
|
|
|
return scr;
|
|
|
|
}
|
2001-06-03 14:33:59 -04:00
|
|
|
|
|
|
|
static gint
|
|
|
|
ptrcmp (gconstpointer a, gconstpointer b)
|
|
|
|
{
|
|
|
|
if (a < b)
|
|
|
|
return -1;
|
|
|
|
else if (a > b)
|
|
|
|
return 1;
|
|
|
|
else
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
static void
|
|
|
|
listify_func (gpointer key, gpointer value, gpointer data)
|
|
|
|
{
|
|
|
|
GSList **listp;
|
|
|
|
|
|
|
|
listp = data;
|
|
|
|
|
|
|
|
*listp = g_slist_prepend (*listp, value);
|
|
|
|
}
|
|
|
|
|
|
|
|
void
|
|
|
|
meta_screen_foreach_window (MetaScreen *screen,
|
|
|
|
MetaScreenWindowFunc func,
|
|
|
|
gpointer data)
|
|
|
|
{
|
|
|
|
GSList *winlist;
|
|
|
|
GSList *tmp;
|
|
|
|
|
|
|
|
/* If we end up doing this often, just keeping a list
|
|
|
|
* of windows might be sensible.
|
|
|
|
*/
|
|
|
|
|
|
|
|
winlist = NULL;
|
|
|
|
g_hash_table_foreach (screen->display->window_ids,
|
|
|
|
listify_func,
|
|
|
|
&winlist);
|
|
|
|
|
|
|
|
winlist = g_slist_sort (winlist, ptrcmp);
|
|
|
|
|
|
|
|
tmp = winlist;
|
|
|
|
while (tmp != NULL)
|
|
|
|
{
|
|
|
|
/* If the next node doesn't contain this window
|
|
|
|
* a second time, delete the window.
|
|
|
|
*/
|
|
|
|
if (tmp->next == NULL ||
|
|
|
|
(tmp->next && tmp->next->data != tmp->data))
|
|
|
|
{
|
|
|
|
MetaWindow *window = tmp->data;
|
|
|
|
|
|
|
|
if (window->screen == screen)
|
|
|
|
(* func) (screen, window, data);
|
|
|
|
}
|
|
|
|
|
|
|
|
tmp = tmp->data;
|
|
|
|
}
|
|
|
|
g_slist_free (winlist);
|
|
|
|
}
|
|
|
|
|
|
|
|
static void
|
|
|
|
queue_draw (MetaScreen *screen, MetaWindow *window, gpointer data)
|
|
|
|
{
|
|
|
|
if (window->frame)
|
|
|
|
meta_frame_queue_draw (window->frame);
|
|
|
|
}
|
|
|
|
|
|
|
|
void
|
|
|
|
meta_screen_queue_frame_redraws (MetaScreen *screen)
|
|
|
|
{
|
|
|
|
meta_screen_foreach_window (screen, queue_draw, NULL);
|
|
|
|
}
|
2001-06-06 00:47:37 -04:00
|
|
|
|
|
|
|
|
|
|
|
void
|
|
|
|
meta_screen_show_tip (MetaScreen *screen,
|
|
|
|
int root_x,
|
|
|
|
int root_y,
|
|
|
|
const char *markup)
|
|
|
|
{
|
|
|
|
/* even if screen->showing_tip, may change position/text */
|
|
|
|
meta_ui_slave_show_tip (screen->uislave, root_x, root_y, markup);
|
|
|
|
screen->showing_tooltip = TRUE;
|
|
|
|
}
|
|
|
|
|
|
|
|
void
|
|
|
|
meta_screen_hide_tip (MetaScreen *screen)
|
|
|
|
{
|
|
|
|
if (screen->showing_tooltip)
|
|
|
|
{
|
|
|
|
meta_ui_slave_hide_tip (screen->uislave);
|
|
|
|
screen->showing_tooltip = FALSE;
|
|
|
|
}
|
|
|
|
}
|