forked from AuroraMiddleware/gtk
741 lines
18 KiB
C
741 lines
18 KiB
C
/* GDK - The GIMP Drawing Kit
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* Copyright (C) 1995-1997 Peter Mattis, Spencer Kimball and Josh MacDonald
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but 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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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the
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* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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* Boston, MA 02111-1307, USA.
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*/
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/*
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* Modified by the GTK+ Team and others 1997-2000. See the AUTHORS
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* file for a list of people on the GTK+ Team. See the ChangeLog
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* files for a list of changes. These files are distributed with
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* GTK+ at ftp://ftp.gtk.org/pub/gtk/.
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*/
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#include <config.h>
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#include <X11/Xlib.h>
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#include <X11/Xatom.h>
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#include <string.h>
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#include "gdk.h" /* For gdk_error_trap_push/pop() */
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#include "gdkx.h"
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#include "gdkproperty.h"
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#include "gdkprivate.h"
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#include "gdkinternals.h"
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#include "gdkdisplay-x11.h"
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#include "gdkscreen-x11.h"
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#include "gdkselection.h" /* only from predefined atom */
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#include "gdkalias.h"
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static GPtrArray *virtual_atom_array;
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static GHashTable *virtual_atom_hash;
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static const gchar *const XAtomsStrings[] = {
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/* These are all the standard predefined X atoms */
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"NONE",
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"PRIMARY",
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"SECONDARY",
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"ARC",
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"ATOM",
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"BITMAP",
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"CARDINAL",
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"COLORMAP",
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"CURSOR",
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"CUT_BUFFER0",
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"CUT_BUFFER1",
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"CUT_BUFFER2",
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"CUT_BUFFER3",
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"CUT_BUFFER4",
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"CUT_BUFFER5",
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"CUT_BUFFER6",
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"CUT_BUFFER7",
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"DRAWABLE",
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"FONT",
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"INTEGER",
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"PIXMAP",
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"POINT",
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"RECTANGLE",
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"RESOURCE_MANAGER",
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"RGB_COLOR_MAP",
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"RGB_BEST_MAP",
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"RGB_BLUE_MAP",
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"RGB_DEFAULT_MAP",
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"RGB_GRAY_MAP",
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"RGB_GREEN_MAP",
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"RGB_RED_MAP",
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"STRING",
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"VISUALID",
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"WINDOW",
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"WM_COMMAND",
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"WM_HINTS",
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"WM_CLIENT_MACHINE",
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"WM_ICON_NAME",
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"WM_ICON_SIZE",
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"WM_NAME",
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"WM_NORMAL_HINTS",
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"WM_SIZE_HINTS",
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"WM_ZOOM_HINTS",
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"MIN_SPACE",
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"NORM_SPACE",
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"MAX_SPACE",
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"END_SPACE",
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"SUPERSCRIPT_X",
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"SUPERSCRIPT_Y",
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"SUBSCRIPT_X",
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"SUBSCRIPT_Y",
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"UNDERLINE_POSITION",
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"UNDERLINE_THICKNESS",
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"STRIKEOUT_ASCENT",
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"STRIKEOUT_DESCENT",
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"ITALIC_ANGLE",
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"X_HEIGHT",
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"QUAD_WIDTH",
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"WEIGHT",
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"POINT_SIZE",
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"RESOLUTION",
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"COPYRIGHT",
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"NOTICE",
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"FONT_NAME",
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"FAMILY_NAME",
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"FULL_NAME",
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"CAP_HEIGHT",
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"WM_CLASS",
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"WM_TRANSIENT_FOR",
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/* Below here, these are our additions. Increment N_CUSTOM_PREDEFINED
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* if you add any.
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*/
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"CLIPBOARD" /* = 69 */
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};
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#define N_CUSTOM_PREDEFINED 1
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#define ATOM_TO_INDEX(atom) (GPOINTER_TO_UINT(atom))
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#define INDEX_TO_ATOM(atom) ((GdkAtom)GUINT_TO_POINTER(atom))
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static void
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insert_atom_pair (GdkDisplay *display,
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GdkAtom virtual_atom,
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Atom xatom)
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{
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GdkDisplayX11 *display_x11 = GDK_DISPLAY_X11 (display);
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if (!display_x11->atom_from_virtual)
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{
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display_x11->atom_from_virtual = g_hash_table_new (g_direct_hash, NULL);
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display_x11->atom_to_virtual = g_hash_table_new (g_direct_hash, NULL);
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}
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g_hash_table_insert (display_x11->atom_from_virtual,
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GDK_ATOM_TO_POINTER (virtual_atom),
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GUINT_TO_POINTER (xatom));
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g_hash_table_insert (display_x11->atom_to_virtual,
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GUINT_TO_POINTER (xatom),
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GDK_ATOM_TO_POINTER (virtual_atom));
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}
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static Atom
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lookup_cached_xatom (GdkDisplay *display,
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GdkAtom atom)
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{
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GdkDisplayX11 *display_x11 = GDK_DISPLAY_X11 (display);
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if (ATOM_TO_INDEX (atom) < G_N_ELEMENTS (XAtomsStrings) - N_CUSTOM_PREDEFINED)
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return ATOM_TO_INDEX (atom);
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if (display_x11->atom_from_virtual)
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return GPOINTER_TO_UINT (g_hash_table_lookup (display_x11->atom_from_virtual,
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GDK_ATOM_TO_POINTER (atom)));
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return None;
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}
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/**
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* gdk_x11_atom_to_xatom_for_display:
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* @display: A #GdkDisplay
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* @atom: A #GdkAtom
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*
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* Converts from a #GdkAtom to the X atom for a #GdkDisplay
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* with the same string value.
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*
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* Return value: the X atom corresponding to @atom.
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*
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* Since: 2.2
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**/
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Atom
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gdk_x11_atom_to_xatom_for_display (GdkDisplay *display,
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GdkAtom atom)
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{
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Atom xatom = None;
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g_return_val_if_fail (GDK_IS_DISPLAY (display), None);
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if (display->closed)
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return None;
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xatom = lookup_cached_xatom (display, atom);
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if (!xatom)
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{
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char *name;
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g_return_val_if_fail (ATOM_TO_INDEX (atom) < virtual_atom_array->len, None);
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name = g_ptr_array_index (virtual_atom_array, ATOM_TO_INDEX (atom));
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xatom = XInternAtom (GDK_DISPLAY_XDISPLAY (display), name, FALSE);
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insert_atom_pair (display, atom, xatom);
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}
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return xatom;
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}
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void
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_gdk_x11_precache_atoms (GdkDisplay *display,
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const gchar * const *atom_names,
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gint n_atoms)
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{
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Atom *xatoms;
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GdkAtom *atoms;
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const gchar **xatom_names;
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gint n_xatoms;
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gint i;
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xatoms = g_new (Atom, n_atoms);
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xatom_names = g_new (const gchar *, n_atoms);
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atoms = g_new (GdkAtom, n_atoms);
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n_xatoms = 0;
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for (i = 0; i < n_atoms; i++)
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{
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GdkAtom atom = gdk_atom_intern_static_string (atom_names[i]);
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if (lookup_cached_xatom (display, atom) == None)
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{
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atoms[n_xatoms] = atom;
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xatom_names[n_xatoms] = atom_names[i];
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n_xatoms++;
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}
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}
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if (n_xatoms)
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{
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#ifdef HAVE_XINTERNATOMS
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XInternAtoms (GDK_DISPLAY_XDISPLAY (display),
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(char **)xatom_names, n_xatoms, False, xatoms);
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#else
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for (i = 0; i < n_xatoms; i++)
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xatoms[i] = XInternAtom (GDK_DISPLAY_XDISPLAY (display),
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xatom_names[i], False);
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#endif
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}
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for (i = 0; i < n_xatoms; i++)
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insert_atom_pair (display, atoms[i], xatoms[i]);
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g_free (xatoms);
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g_free (xatom_names);
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g_free (atoms);
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}
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/**
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* gdk_x11_atom_to_xatom:
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* @atom: A #GdkAtom
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*
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* Converts from a #GdkAtom to the X atom for the default GDK display
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* with the same string value.
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*
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* Return value: the X atom corresponding to @atom.
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**/
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Atom
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gdk_x11_atom_to_xatom (GdkAtom atom)
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{
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return gdk_x11_atom_to_xatom_for_display (gdk_display_get_default (), atom);
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}
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/**
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* gdk_x11_xatom_to_atom_for_display:
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* @display: A #GdkDisplay
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* @xatom: an X atom
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*
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* Convert from an X atom for a #GdkDisplay to the corresponding
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* #GdkAtom.
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*
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* Return value: the corresponding #GdkAtom.
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*
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* Since: 2.2
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**/
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GdkAtom
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gdk_x11_xatom_to_atom_for_display (GdkDisplay *display,
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Atom xatom)
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{
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GdkDisplayX11 *display_x11;
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GdkAtom virtual_atom = GDK_NONE;
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g_return_val_if_fail (GDK_IS_DISPLAY (display), GDK_NONE);
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if (display->closed)
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return GDK_NONE;
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display_x11 = GDK_DISPLAY_X11 (display);
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if (xatom < G_N_ELEMENTS (XAtomsStrings) - N_CUSTOM_PREDEFINED)
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return INDEX_TO_ATOM (xatom);
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if (display_x11->atom_to_virtual)
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virtual_atom = GDK_POINTER_TO_ATOM (g_hash_table_lookup (display_x11->atom_to_virtual,
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GUINT_TO_POINTER (xatom)));
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if (!virtual_atom)
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{
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/* If this atom doesn't exist, we'll die with an X error unless
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* we take precautions
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*/
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char *name;
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gdk_error_trap_push ();
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name = XGetAtomName (GDK_DISPLAY_XDISPLAY (display), xatom);
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if (gdk_error_trap_pop ())
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{
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g_warning (G_STRLOC " invalid X atom: %ld", xatom);
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}
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else
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{
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virtual_atom = gdk_atom_intern (name, FALSE);
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XFree (name);
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insert_atom_pair (display, virtual_atom, xatom);
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}
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}
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return virtual_atom;
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}
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/**
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* gdk_x11_xatom_to_atom:
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* @xatom: an X atom for the default GDK display
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*
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* Convert from an X atom for the default display to the corresponding
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* #GdkAtom.
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*
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* Return value: the corresponding G#dkAtom.
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**/
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GdkAtom
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gdk_x11_xatom_to_atom (Atom xatom)
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{
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return gdk_x11_xatom_to_atom_for_display (gdk_display_get_default (), xatom);
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}
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static void
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virtual_atom_check_init (void)
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{
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if (!virtual_atom_hash)
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{
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gint i;
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virtual_atom_hash = g_hash_table_new (g_str_hash, g_str_equal);
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virtual_atom_array = g_ptr_array_new ();
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for (i = 0; i < G_N_ELEMENTS (XAtomsStrings); i++)
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{
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g_ptr_array_add (virtual_atom_array, (gchar *) XAtomsStrings[i]);
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g_hash_table_insert (virtual_atom_hash, (gchar *) XAtomsStrings[i],
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GUINT_TO_POINTER (i));
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}
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}
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}
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static GdkAtom
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intern_atom (const gchar *atom_name,
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gboolean dup)
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{
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GdkAtom result;
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virtual_atom_check_init ();
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result = GDK_POINTER_TO_ATOM (g_hash_table_lookup (virtual_atom_hash, atom_name));
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if (!result)
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{
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result = INDEX_TO_ATOM (virtual_atom_array->len);
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g_ptr_array_add (virtual_atom_array, dup ? g_strdup (atom_name) : atom_name);
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g_hash_table_insert (virtual_atom_hash,
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g_ptr_array_index (virtual_atom_array,
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ATOM_TO_INDEX (result)),
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GDK_ATOM_TO_POINTER (result));
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}
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return result;
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}
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GdkAtom
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gdk_atom_intern (const gchar *atom_name,
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gboolean only_if_exists)
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{
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return intern_atom (atom_name, TRUE);
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}
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/**
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* gdk_atom_intern_static_string:
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* @atom_name: a static string
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*
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* Finds or creates an atom corresponding to a given string.
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*
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* Note that this function is identical to gdk_atom_intern() except
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* that if a new #GdkAtom is created the string itself is used rather
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* than a copy. This saves memory, but can only be used if the string
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* will <emphasis>always</emphasis> exist. It can be used with statically
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* allocated strings in the main program, but not with statically
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* allocated memory in dynamically loaded modules, if you expect to
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* ever unload the module again (e.g. do not use this function in
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* GTK+ theme engines).
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*
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* Returns: the atom corresponding to @atom_name
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*
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* Since: 2.10
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*/
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GdkAtom
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gdk_atom_intern_static_string (const gchar *atom_name)
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{
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return intern_atom (atom_name, FALSE);
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}
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static G_CONST_RETURN char *
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get_atom_name (GdkAtom atom)
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{
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virtual_atom_check_init ();
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if (ATOM_TO_INDEX (atom) < virtual_atom_array->len)
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return g_ptr_array_index (virtual_atom_array, ATOM_TO_INDEX (atom));
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else
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return NULL;
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}
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gchar *
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gdk_atom_name (GdkAtom atom)
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{
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return g_strdup (get_atom_name (atom));
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}
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/**
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* gdk_x11_get_xatom_by_name_for_display:
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* @display: a #GdkDisplay
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* @atom_name: a string
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*
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* Returns the X atom for a #GdkDisplay corresponding to @atom_name.
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* This function caches the result, so if called repeatedly it is much
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* faster than XInternAtom(), which is a round trip to the server each time.
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*
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* Return value: a X atom for a #GdkDisplay
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*
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* Since: 2.2
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**/
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Atom
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gdk_x11_get_xatom_by_name_for_display (GdkDisplay *display,
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const gchar *atom_name)
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{
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g_return_val_if_fail (GDK_IS_DISPLAY (display), None);
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return gdk_x11_atom_to_xatom_for_display (display,
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gdk_atom_intern (atom_name, FALSE));
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}
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/**
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* gdk_x11_get_xatom_by_name:
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* @atom_name: a string
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*
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* Returns the X atom for GDK's default display corresponding to @atom_name.
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* This function caches the result, so if called repeatedly it is much
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* faster than XInternAtom(), which is a round trip to the server each time.
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*
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* Return value: a X atom for GDK's default display.
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**/
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Atom
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gdk_x11_get_xatom_by_name (const gchar *atom_name)
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{
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return gdk_x11_get_xatom_by_name_for_display (gdk_display_get_default (),
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atom_name);
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}
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/**
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* gdk_x11_get_xatom_name_for_display:
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* @display: the #GdkDisplay where @xatom is defined
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* @xatom: an X atom
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*
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* Returns the name of an X atom for its display. This
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* function is meant mainly for debugging, so for convenience, unlike
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* XAtomName() and gdk_atom_name(), the result doesn't need to
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* be freed.
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*
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* Return value: name of the X atom; this string is owned by GDK,
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* so it shouldn't be modifed or freed.
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*
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* Since: 2.2
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**/
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G_CONST_RETURN gchar *
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gdk_x11_get_xatom_name_for_display (GdkDisplay *display,
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Atom xatom)
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{
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g_return_val_if_fail (GDK_IS_DISPLAY (display), NULL);
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return get_atom_name (gdk_x11_xatom_to_atom_for_display (display, xatom));
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}
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/**
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* gdk_x11_get_xatom_name:
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* @xatom: an X atom for GDK's default display
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*
|
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* Returns the name of an X atom for GDK's default display. This
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* function is meant mainly for debugging, so for convenience, unlike
|
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* <function>XAtomName()</function> and gdk_atom_name(), the result
|
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* doesn't need to be freed. Also, this function will never return %NULL,
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* even if @xatom is invalid.
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*
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* Return value: name of the X atom; this string is owned by GTK+,
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* so it shouldn't be modifed or freed.
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|
**/
|
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G_CONST_RETURN gchar *
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gdk_x11_get_xatom_name (Atom xatom)
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{
|
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return get_atom_name (gdk_x11_xatom_to_atom (xatom));
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}
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gboolean
|
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gdk_property_get (GdkWindow *window,
|
|
GdkAtom property,
|
|
GdkAtom type,
|
|
gulong offset,
|
|
gulong length,
|
|
gint pdelete,
|
|
GdkAtom *actual_property_type,
|
|
gint *actual_format_type,
|
|
gint *actual_length,
|
|
guchar **data)
|
|
{
|
|
GdkDisplay *display;
|
|
Atom ret_prop_type;
|
|
gint ret_format;
|
|
gulong ret_nitems;
|
|
gulong ret_bytes_after;
|
|
gulong get_length;
|
|
gulong ret_length;
|
|
guchar *ret_data;
|
|
Atom xproperty;
|
|
Atom xtype;
|
|
int res;
|
|
|
|
g_return_val_if_fail (!window || GDK_IS_WINDOW (window), FALSE);
|
|
|
|
if (!window)
|
|
{
|
|
GdkScreen *screen = gdk_screen_get_default ();
|
|
window = gdk_screen_get_root_window (screen);
|
|
|
|
GDK_NOTE (MULTIHEAD, g_message ("gdk_property_get(): window is NULL\n"));
|
|
}
|
|
|
|
if (GDK_WINDOW_DESTROYED (window))
|
|
return FALSE;
|
|
|
|
display = gdk_drawable_get_display (window);
|
|
xproperty = gdk_x11_atom_to_xatom_for_display (display, property);
|
|
if (type == GDK_NONE)
|
|
xtype = AnyPropertyType;
|
|
else
|
|
xtype = gdk_x11_atom_to_xatom_for_display (display, type);
|
|
|
|
ret_data = NULL;
|
|
|
|
/*
|
|
* Round up length to next 4 byte value. Some code is in the (bad?)
|
|
* habit of passing G_MAXLONG as the length argument, causing an
|
|
* overflow to negative on the add. In this case, we clamp the
|
|
* value to G_MAXLONG.
|
|
*/
|
|
get_length = length + 3;
|
|
if (get_length > G_MAXLONG)
|
|
get_length = G_MAXLONG;
|
|
|
|
/* To fail, either the user passed 0 or G_MAXULONG */
|
|
get_length = get_length / 4;
|
|
if (get_length == 0)
|
|
{
|
|
g_warning ("gdk_propery-get(): invalid length 0");
|
|
return FALSE;
|
|
}
|
|
|
|
res = XGetWindowProperty (GDK_DISPLAY_XDISPLAY (display),
|
|
GDK_WINDOW_XWINDOW (window), xproperty,
|
|
offset, get_length, pdelete,
|
|
xtype, &ret_prop_type, &ret_format,
|
|
&ret_nitems, &ret_bytes_after,
|
|
&ret_data);
|
|
|
|
if (res != Success || (ret_prop_type == None && ret_format == 0))
|
|
{
|
|
return FALSE;
|
|
}
|
|
|
|
if (actual_property_type)
|
|
*actual_property_type = gdk_x11_xatom_to_atom_for_display (display, ret_prop_type);
|
|
if (actual_format_type)
|
|
*actual_format_type = ret_format;
|
|
|
|
if ((xtype != AnyPropertyType) && (ret_prop_type != xtype))
|
|
{
|
|
XFree (ret_data);
|
|
g_warning ("Couldn't match property type %s to %s\n",
|
|
gdk_x11_get_xatom_name_for_display (display, ret_prop_type),
|
|
gdk_x11_get_xatom_name_for_display (display, xtype));
|
|
return FALSE;
|
|
}
|
|
|
|
/* FIXME: ignoring bytes_after could have very bad effects */
|
|
|
|
if (data)
|
|
{
|
|
if (ret_prop_type == XA_ATOM ||
|
|
ret_prop_type == gdk_x11_get_xatom_by_name_for_display (display, "ATOM_PAIR"))
|
|
{
|
|
/*
|
|
* data is an array of X atom, we need to convert it
|
|
* to an array of GDK Atoms
|
|
*/
|
|
gint i;
|
|
GdkAtom *ret_atoms = g_new (GdkAtom, ret_nitems);
|
|
Atom *xatoms = (Atom *)ret_data;
|
|
|
|
*data = (guchar *)ret_atoms;
|
|
|
|
for (i = 0; i < ret_nitems; i++)
|
|
ret_atoms[i] = gdk_x11_xatom_to_atom_for_display (display, xatoms[i]);
|
|
|
|
if (actual_length)
|
|
*actual_length = ret_nitems * sizeof (GdkAtom);
|
|
}
|
|
else
|
|
{
|
|
switch (ret_format)
|
|
{
|
|
case 8:
|
|
ret_length = ret_nitems;
|
|
break;
|
|
case 16:
|
|
ret_length = sizeof(short) * ret_nitems;
|
|
break;
|
|
case 32:
|
|
ret_length = sizeof(long) * ret_nitems;
|
|
break;
|
|
default:
|
|
g_warning ("unknown property return format: %d", ret_format);
|
|
XFree (ret_data);
|
|
return FALSE;
|
|
}
|
|
|
|
*data = g_new (guchar, ret_length);
|
|
memcpy (*data, ret_data, ret_length);
|
|
if (actual_length)
|
|
*actual_length = ret_length;
|
|
}
|
|
}
|
|
|
|
XFree (ret_data);
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
void
|
|
gdk_property_change (GdkWindow *window,
|
|
GdkAtom property,
|
|
GdkAtom type,
|
|
gint format,
|
|
GdkPropMode mode,
|
|
const guchar *data,
|
|
gint nelements)
|
|
{
|
|
GdkDisplay *display;
|
|
Window xwindow;
|
|
Atom xproperty;
|
|
Atom xtype;
|
|
|
|
g_return_if_fail (!window || GDK_IS_WINDOW (window));
|
|
|
|
if (!window)
|
|
{
|
|
GdkScreen *screen;
|
|
|
|
screen = gdk_screen_get_default ();
|
|
window = gdk_screen_get_root_window (screen);
|
|
|
|
GDK_NOTE (MULTIHEAD, g_message ("gdk_property_change(): window is NULL\n"));
|
|
}
|
|
|
|
|
|
if (GDK_WINDOW_DESTROYED (window))
|
|
return;
|
|
|
|
display = gdk_drawable_get_display (window);
|
|
|
|
xproperty = gdk_x11_atom_to_xatom_for_display (display, property);
|
|
xtype = gdk_x11_atom_to_xatom_for_display (display, type);
|
|
xwindow = GDK_WINDOW_XID (window);
|
|
|
|
if (xtype == XA_ATOM ||
|
|
xtype == gdk_x11_get_xatom_by_name_for_display (display, "ATOM_PAIR"))
|
|
{
|
|
/*
|
|
* data is an array of GdkAtom, we need to convert it
|
|
* to an array of X Atoms
|
|
*/
|
|
gint i;
|
|
GdkAtom *atoms = (GdkAtom*) data;
|
|
Atom *xatoms;
|
|
|
|
xatoms = g_new (Atom, nelements);
|
|
for (i = 0; i < nelements; i++)
|
|
xatoms[i] = gdk_x11_atom_to_xatom_for_display (display, atoms[i]);
|
|
|
|
XChangeProperty (GDK_DISPLAY_XDISPLAY (display), xwindow,
|
|
xproperty, xtype,
|
|
format, mode, (guchar *)xatoms, nelements);
|
|
g_free (xatoms);
|
|
}
|
|
else
|
|
XChangeProperty (GDK_DISPLAY_XDISPLAY (display), xwindow, xproperty,
|
|
xtype, format, mode, (guchar *)data, nelements);
|
|
}
|
|
|
|
void
|
|
gdk_property_delete (GdkWindow *window,
|
|
GdkAtom property)
|
|
{
|
|
g_return_if_fail (!window || GDK_IS_WINDOW (window));
|
|
|
|
if (!window)
|
|
{
|
|
GdkScreen *screen = gdk_screen_get_default ();
|
|
window = gdk_screen_get_root_window (screen);
|
|
|
|
GDK_NOTE (MULTIHEAD,
|
|
g_message ("gdk_property_delete(): window is NULL\n"));
|
|
}
|
|
|
|
if (GDK_WINDOW_DESTROYED (window))
|
|
return;
|
|
|
|
XDeleteProperty (GDK_WINDOW_XDISPLAY (window), GDK_WINDOW_XWINDOW (window),
|
|
gdk_x11_atom_to_xatom_for_display (GDK_WINDOW_DISPLAY (window),
|
|
property));
|
|
}
|
|
|
|
#define __GDK_PROPERTY_X11_C__
|
|
#include "gdkaliasdef.c"
|