755 lines
		
	
	
		
			19 KiB
		
	
	
	
		
			C
		
	
	
	
	
	
			
		
		
	
	
			755 lines
		
	
	
		
			19 KiB
		
	
	
	
		
			C
		
	
	
	
	
	
| /* GDK - The GIMP Drawing Kit
 | |
|  * Copyright (C) 1995-1997 Peter Mattis, Spencer Kimball and Josh MacDonald
 | |
|  *
 | |
|  * This library is free software; you can redistribute it and/or
 | |
|  * modify it under the terms of the GNU Lesser General Public
 | |
|  * License as published by the Free Software Foundation; either
 | |
|  * version 2 of the License, or (at your option) any later version.
 | |
|  *
 | |
|  * This library is distributed in the hope that it will be useful,
 | |
|  * but WITHOUT ANY WARRANTY; without even the implied warranty of
 | |
|  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 | |
|  * Lesser General Public License for more details.
 | |
|  *
 | |
|  * You should have received a copy of the GNU Lesser General Public
 | |
|  * License along with this library; if not, write to the
 | |
|  * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
 | |
|  * Boston, MA 02111-1307, USA.
 | |
|  */
 | |
| 
 | |
| /*
 | |
|  * Modified by the GTK+ Team and others 1997-2000.  See the AUTHORS
 | |
|  * file for a list of people on the GTK+ Team.  See the ChangeLog
 | |
|  * files for a list of changes.  These files are distributed with
 | |
|  * GTK+ at ftp://ftp.gtk.org/pub/gtk/. 
 | |
|  */
 | |
| 
 | |
| #include "config.h"
 | |
| #include <X11/Xlib.h>
 | |
| #include <X11/Xatom.h>
 | |
| #include <string.h>
 | |
| 
 | |
| #include "gdk.h"          /* For gdk_error_trap_push/pop() */
 | |
| #include "gdkx.h"
 | |
| #include "gdkproperty.h"
 | |
| #include "gdkprivate.h"
 | |
| #include "gdkinternals.h"
 | |
| #include "gdkdisplay-x11.h"
 | |
| #include "gdkscreen-x11.h"
 | |
| #include "gdkselection.h"	/* only from predefined atom */
 | |
| #include "gdkalias.h"
 | |
| 
 | |
| static GPtrArray *virtual_atom_array;
 | |
| static GHashTable *virtual_atom_hash;
 | |
| 
 | |
| static const gchar xatoms_string[] = 
 | |
|   /* These are all the standard predefined X atoms */
 | |
|   "\0"  /* leave a space for None, even though it is not a predefined atom */
 | |
|   "PRIMARY\0"
 | |
|   "SECONDARY\0"
 | |
|   "ARC\0"
 | |
|   "ATOM\0"
 | |
|   "BITMAP\0"
 | |
|   "CARDINAL\0"
 | |
|   "COLORMAP\0"
 | |
|   "CURSOR\0"
 | |
|   "CUT_BUFFER0\0"
 | |
|   "CUT_BUFFER1\0"
 | |
|   "CUT_BUFFER2\0"
 | |
|   "CUT_BUFFER3\0"
 | |
|   "CUT_BUFFER4\0"
 | |
|   "CUT_BUFFER5\0"
 | |
|   "CUT_BUFFER6\0"
 | |
|   "CUT_BUFFER7\0"
 | |
|   "DRAWABLE\0"
 | |
|   "FONT\0"
 | |
|   "INTEGER\0"
 | |
|   "PIXMAP\0"
 | |
|   "POINT\0"
 | |
|   "RECTANGLE\0"
 | |
|   "RESOURCE_MANAGER\0"
 | |
|   "RGB_COLOR_MAP\0"
 | |
|   "RGB_BEST_MAP\0"
 | |
|   "RGB_BLUE_MAP\0"
 | |
|   "RGB_DEFAULT_MAP\0"
 | |
|   "RGB_GRAY_MAP\0"
 | |
|   "RGB_GREEN_MAP\0"
 | |
|   "RGB_RED_MAP\0"
 | |
|   "STRING\0"
 | |
|   "VISUALID\0"
 | |
|   "WINDOW\0"
 | |
|   "WM_COMMAND\0"
 | |
|   "WM_HINTS\0"
 | |
|   "WM_CLIENT_MACHINE\0"
 | |
|   "WM_ICON_NAME\0"
 | |
|   "WM_ICON_SIZE\0"
 | |
|   "WM_NAME\0"
 | |
|   "WM_NORMAL_HINTS\0"
 | |
|   "WM_SIZE_HINTS\0"
 | |
|   "WM_ZOOM_HINTS\0"
 | |
|   "MIN_SPACE\0"
 | |
|   "NORM_SPACE\0"
 | |
|   "MAX_SPACE\0"
 | |
|   "END_SPACE\0"
 | |
|   "SUPERSCRIPT_X\0"
 | |
|   "SUPERSCRIPT_Y\0"
 | |
|   "SUBSCRIPT_X\0"
 | |
|   "SUBSCRIPT_Y\0"
 | |
|   "UNDERLINE_POSITION\0"
 | |
|   "UNDERLINE_THICKNESS\0"
 | |
|   "STRIKEOUT_ASCENT\0"
 | |
|   "STRIKEOUT_DESCENT\0"
 | |
|   "ITALIC_ANGLE\0"
 | |
|   "X_HEIGHT\0"
 | |
|   "QUAD_WIDTH\0"
 | |
|   "WEIGHT\0"
 | |
|   "POINT_SIZE\0"
 | |
|   "RESOLUTION\0"
 | |
|   "COPYRIGHT\0"
 | |
|   "NOTICE\0"
 | |
|   "FONT_NAME\0"
 | |
|   "FAMILY_NAME\0"
 | |
|   "FULL_NAME\0"
 | |
|   "CAP_HEIGHT\0"
 | |
|   "WM_CLASS\0"
 | |
|   "WM_TRANSIENT_FOR\0"
 | |
|   /* Below here, these are our additions. Increment N_CUSTOM_PREDEFINED
 | |
|    * if you add any.
 | |
|    */
 | |
|   "CLIPBOARD\0"			/* = 69 */
 | |
| ;
 | |
| 
 | |
| static const gint xatoms_offset[] = {
 | |
|     0,   1,   9,  19,  23,  28,  35,  44,  53,  60,  72,  84,
 | |
|    96, 108, 120, 132, 144, 156, 165, 170, 178, 185, 189, 201,
 | |
|   218, 232, 245, 258, 274, 287, 301, 313, 320, 329, 336, 347,
 | |
|   356, 374, 387, 400, 408, 424, 438, 452, 462, 473, 483, 493,
 | |
|   507, 521, 533, 545, 564, 584, 601, 619, 632, 641, 652, 659,
 | |
|   670, 681, 691, 698, 708, 720, 730, 741, 750, 767
 | |
| };
 | |
| 
 | |
| #define N_CUSTOM_PREDEFINED 1
 | |
| 
 | |
| #define ATOM_TO_INDEX(atom) (GPOINTER_TO_UINT(atom))
 | |
| #define INDEX_TO_ATOM(atom) ((GdkAtom)GUINT_TO_POINTER(atom))
 | |
| 
 | |
| static void
 | |
| insert_atom_pair (GdkDisplay *display,
 | |
| 		  GdkAtom     virtual_atom,
 | |
| 		  Atom        xatom)
 | |
| {
 | |
|   GdkDisplayX11 *display_x11 = GDK_DISPLAY_X11 (display);  
 | |
|   
 | |
|   if (!display_x11->atom_from_virtual)
 | |
|     {
 | |
|       display_x11->atom_from_virtual = g_hash_table_new (g_direct_hash, NULL);
 | |
|       display_x11->atom_to_virtual = g_hash_table_new (g_direct_hash, NULL);
 | |
|     }
 | |
|   
 | |
|   g_hash_table_insert (display_x11->atom_from_virtual, 
 | |
| 		       GDK_ATOM_TO_POINTER (virtual_atom), 
 | |
| 		       GUINT_TO_POINTER (xatom));
 | |
|   g_hash_table_insert (display_x11->atom_to_virtual,
 | |
| 		       GUINT_TO_POINTER (xatom), 
 | |
| 		       GDK_ATOM_TO_POINTER (virtual_atom));
 | |
| }
 | |
| 
 | |
| static Atom
 | |
| lookup_cached_xatom (GdkDisplay *display,
 | |
| 		     GdkAtom     atom)
 | |
| {
 | |
|   GdkDisplayX11 *display_x11 = GDK_DISPLAY_X11 (display);
 | |
| 
 | |
|   if (ATOM_TO_INDEX (atom) < G_N_ELEMENTS (xatoms_offset) - N_CUSTOM_PREDEFINED)
 | |
|     return ATOM_TO_INDEX (atom);
 | |
|   
 | |
|   if (display_x11->atom_from_virtual)
 | |
|     return GPOINTER_TO_UINT (g_hash_table_lookup (display_x11->atom_from_virtual,
 | |
| 						  GDK_ATOM_TO_POINTER (atom)));
 | |
| 
 | |
|   return None;
 | |
| }
 | |
| 
 | |
| /**
 | |
|  * gdk_x11_atom_to_xatom_for_display:
 | |
|  * @display: A #GdkDisplay
 | |
|  * @atom: A #GdkAtom, or %GDK_NONE
 | |
|  *
 | |
|  * Converts from a #GdkAtom to the X atom for a #GdkDisplay
 | |
|  * with the same string value. The special value %GDK_NONE
 | |
|  * is converted to %None.
 | |
|  *
 | |
|  * Return value: the X atom corresponding to @atom, or %None
 | |
|  *
 | |
|  * Since: 2.2
 | |
|  **/
 | |
| Atom
 | |
| gdk_x11_atom_to_xatom_for_display (GdkDisplay *display,
 | |
| 				   GdkAtom     atom)
 | |
| {
 | |
|   Atom xatom = None;
 | |
| 
 | |
|   g_return_val_if_fail (GDK_IS_DISPLAY (display), None);
 | |
| 
 | |
|   if (atom == GDK_NONE)
 | |
|     return None;
 | |
| 
 | |
|   if (display->closed)
 | |
|     return None;
 | |
| 
 | |
|   xatom = lookup_cached_xatom (display, atom);
 | |
| 
 | |
|   if (!xatom)
 | |
|     {
 | |
|       char *name;
 | |
| 
 | |
|       g_return_val_if_fail (ATOM_TO_INDEX (atom) < virtual_atom_array->len, None);
 | |
| 
 | |
|       name = g_ptr_array_index (virtual_atom_array, ATOM_TO_INDEX (atom));
 | |
| 
 | |
|       xatom = XInternAtom (GDK_DISPLAY_XDISPLAY (display), name, FALSE);
 | |
|       insert_atom_pair (display, atom, xatom);
 | |
|     }
 | |
| 
 | |
|   return xatom;
 | |
| }
 | |
| 
 | |
| void
 | |
| _gdk_x11_precache_atoms (GdkDisplay          *display,
 | |
| 			 const gchar * const *atom_names,
 | |
| 			 gint                 n_atoms)
 | |
| {
 | |
|   Atom *xatoms;
 | |
|   GdkAtom *atoms;
 | |
|   const gchar **xatom_names;
 | |
|   gint n_xatoms;
 | |
|   gint i;
 | |
| 
 | |
|   xatoms = g_new (Atom, n_atoms);
 | |
|   xatom_names = g_new (const gchar *, n_atoms);
 | |
|   atoms = g_new (GdkAtom, n_atoms);
 | |
| 
 | |
|   n_xatoms = 0;
 | |
|   for (i = 0; i < n_atoms; i++)
 | |
|     {
 | |
|       GdkAtom atom = gdk_atom_intern_static_string (atom_names[i]);
 | |
|       if (lookup_cached_xatom (display, atom) == None)
 | |
| 	{
 | |
| 	  atoms[n_xatoms] = atom;
 | |
| 	  xatom_names[n_xatoms] = atom_names[i];
 | |
| 	  n_xatoms++;
 | |
| 	}
 | |
|     }
 | |
| 
 | |
|   if (n_xatoms)
 | |
|     {
 | |
| #ifdef HAVE_XINTERNATOMS
 | |
|       XInternAtoms (GDK_DISPLAY_XDISPLAY (display),
 | |
| 		    (char **)xatom_names, n_xatoms, False, xatoms);
 | |
| #else
 | |
|       for (i = 0; i < n_xatoms; i++)
 | |
| 	xatoms[i] = XInternAtom (GDK_DISPLAY_XDISPLAY (display),
 | |
| 				 xatom_names[i], False);
 | |
| #endif
 | |
|     }
 | |
| 
 | |
|   for (i = 0; i < n_xatoms; i++)
 | |
|     insert_atom_pair (display, atoms[i], xatoms[i]);
 | |
| 
 | |
|   g_free (xatoms);
 | |
|   g_free (xatom_names);
 | |
|   g_free (atoms);
 | |
| }
 | |
| 
 | |
| /**
 | |
|  * gdk_x11_atom_to_xatom:
 | |
|  * @atom: A #GdkAtom 
 | |
|  * 
 | |
|  * Converts from a #GdkAtom to the X atom for the default GDK display
 | |
|  * with the same string value.
 | |
|  * 
 | |
|  * Return value: the X atom corresponding to @atom.
 | |
|  **/
 | |
| Atom
 | |
| gdk_x11_atom_to_xatom (GdkAtom atom)
 | |
| {
 | |
|   return gdk_x11_atom_to_xatom_for_display (gdk_display_get_default (), atom);
 | |
| }
 | |
| 
 | |
| /**
 | |
|  * gdk_x11_xatom_to_atom_for_display:
 | |
|  * @display: A #GdkDisplay
 | |
|  * @xatom: an X atom 
 | |
|  * 
 | |
|  * Convert from an X atom for a #GdkDisplay to the corresponding
 | |
|  * #GdkAtom.
 | |
|  * 
 | |
|  * Return value: the corresponding #GdkAtom.
 | |
|  *
 | |
|  * Since: 2.2
 | |
|  **/
 | |
| GdkAtom
 | |
| gdk_x11_xatom_to_atom_for_display (GdkDisplay *display,
 | |
| 				   Atom	       xatom)
 | |
| {
 | |
|   GdkDisplayX11 *display_x11;
 | |
|   GdkAtom virtual_atom = GDK_NONE;
 | |
|   
 | |
|   g_return_val_if_fail (GDK_IS_DISPLAY (display), GDK_NONE);
 | |
|   g_return_val_if_fail (xatom != None, GDK_NONE);
 | |
| 
 | |
|   if (display->closed)
 | |
|     return GDK_NONE;
 | |
| 
 | |
|   display_x11 = GDK_DISPLAY_X11 (display);
 | |
|   
 | |
|   if (xatom < G_N_ELEMENTS (xatoms_offset) - N_CUSTOM_PREDEFINED)
 | |
|     return INDEX_TO_ATOM (xatom);
 | |
|   
 | |
|   if (display_x11->atom_to_virtual)
 | |
|     virtual_atom = GDK_POINTER_TO_ATOM (g_hash_table_lookup (display_x11->atom_to_virtual,
 | |
| 							     GUINT_TO_POINTER (xatom)));
 | |
|   
 | |
|   if (!virtual_atom)
 | |
|     {
 | |
|       /* If this atom doesn't exist, we'll die with an X error unless
 | |
|        * we take precautions
 | |
|        */
 | |
|       char *name;
 | |
|       gdk_error_trap_push ();
 | |
|       name = XGetAtomName (GDK_DISPLAY_XDISPLAY (display), xatom);
 | |
|       if (gdk_error_trap_pop ())
 | |
| 	{
 | |
| 	  g_warning (G_STRLOC " invalid X atom: %ld", xatom);
 | |
| 	}
 | |
|       else
 | |
| 	{
 | |
| 	  virtual_atom = gdk_atom_intern (name, FALSE);
 | |
| 	  XFree (name);
 | |
| 	  
 | |
| 	  insert_atom_pair (display, virtual_atom, xatom);
 | |
| 	}
 | |
|     }
 | |
| 
 | |
|   return virtual_atom;
 | |
| }
 | |
| 
 | |
| /**
 | |
|  * gdk_x11_xatom_to_atom:
 | |
|  * @xatom: an X atom for the default GDK display
 | |
|  * 
 | |
|  * Convert from an X atom for the default display to the corresponding
 | |
|  * #GdkAtom.
 | |
|  * 
 | |
|  * Return value: the corresponding G#dkAtom.
 | |
|  **/
 | |
| GdkAtom
 | |
| gdk_x11_xatom_to_atom (Atom xatom)
 | |
| {
 | |
|   return gdk_x11_xatom_to_atom_for_display (gdk_display_get_default (), xatom);
 | |
| }
 | |
| 
 | |
| static void
 | |
| virtual_atom_check_init (void)
 | |
| {
 | |
|   if (!virtual_atom_hash)
 | |
|     {
 | |
|       gint i;
 | |
|       
 | |
|       virtual_atom_hash = g_hash_table_new (g_str_hash, g_str_equal);
 | |
|       virtual_atom_array = g_ptr_array_new ();
 | |
|       
 | |
|       for (i = 0; i < G_N_ELEMENTS (xatoms_offset); i++)
 | |
| 	{
 | |
| 	  g_ptr_array_add (virtual_atom_array, (gchar *)(xatoms_string + xatoms_offset[i]));
 | |
| 	  g_hash_table_insert (virtual_atom_hash, (gchar *)(xatoms_string + xatoms_offset[i]),
 | |
| 			       GUINT_TO_POINTER (i));
 | |
| 	}
 | |
|     }
 | |
| }
 | |
| 
 | |
| static GdkAtom
 | |
| intern_atom (const gchar *atom_name, 
 | |
| 	     gboolean     dup)
 | |
| {
 | |
|   GdkAtom result;
 | |
| 
 | |
|   virtual_atom_check_init ();
 | |
|   
 | |
|   result = GDK_POINTER_TO_ATOM (g_hash_table_lookup (virtual_atom_hash, atom_name));
 | |
|   if (!result)
 | |
|     {
 | |
|       result = INDEX_TO_ATOM (virtual_atom_array->len);
 | |
|       
 | |
|       g_ptr_array_add (virtual_atom_array, dup ? g_strdup (atom_name) : (gchar *)atom_name);
 | |
|       g_hash_table_insert (virtual_atom_hash, 
 | |
| 			   g_ptr_array_index (virtual_atom_array,
 | |
| 					      ATOM_TO_INDEX (result)),
 | |
| 			   GDK_ATOM_TO_POINTER (result));
 | |
|     }
 | |
| 
 | |
|   return result;
 | |
| }
 | |
| 
 | |
| GdkAtom
 | |
| gdk_atom_intern (const gchar *atom_name, 
 | |
| 		 gboolean     only_if_exists)
 | |
| {
 | |
|   return intern_atom (atom_name, TRUE);
 | |
| }
 | |
| 
 | |
| /**
 | |
|  * gdk_atom_intern_static_string:
 | |
|  * @atom_name: a static string
 | |
|  *
 | |
|  * Finds or creates an atom corresponding to a given string.
 | |
|  *
 | |
|  * Note that this function is identical to gdk_atom_intern() except
 | |
|  * that if a new #GdkAtom is created the string itself is used rather 
 | |
|  * than a copy. This saves memory, but can only be used if the string 
 | |
|  * will <emphasis>always</emphasis> exist. It can be used with statically
 | |
|  * allocated strings in the main program, but not with statically 
 | |
|  * allocated memory in dynamically loaded modules, if you expect to
 | |
|  * ever unload the module again (e.g. do not use this function in
 | |
|  * GTK+ theme engines).
 | |
|  *
 | |
|  * Returns: the atom corresponding to @atom_name
 | |
|  * 
 | |
|  * Since: 2.10
 | |
|  */
 | |
| GdkAtom
 | |
| gdk_atom_intern_static_string (const gchar *atom_name)
 | |
| {
 | |
|   return intern_atom (atom_name, FALSE);
 | |
| }
 | |
| 
 | |
| static G_CONST_RETURN char *
 | |
| get_atom_name (GdkAtom atom)
 | |
| {
 | |
|   virtual_atom_check_init ();
 | |
| 
 | |
|   if (ATOM_TO_INDEX (atom) < virtual_atom_array->len)
 | |
|     return g_ptr_array_index (virtual_atom_array, ATOM_TO_INDEX (atom));
 | |
|   else
 | |
|     return NULL;
 | |
| }
 | |
| 
 | |
| gchar *
 | |
| gdk_atom_name (GdkAtom atom)
 | |
| {
 | |
|   return g_strdup (get_atom_name (atom));
 | |
| }
 | |
| 
 | |
| /**
 | |
|  * gdk_x11_get_xatom_by_name_for_display:
 | |
|  * @display: a #GdkDisplay
 | |
|  * @atom_name: a string
 | |
|  * 
 | |
|  * Returns the X atom for a #GdkDisplay corresponding to @atom_name.
 | |
|  * This function caches the result, so if called repeatedly it is much
 | |
|  * faster than XInternAtom(), which is a round trip to the server each time.
 | |
|  * 
 | |
|  * Return value: a X atom for a #GdkDisplay
 | |
|  *
 | |
|  * Since: 2.2
 | |
|  **/
 | |
| Atom
 | |
| gdk_x11_get_xatom_by_name_for_display (GdkDisplay  *display,
 | |
| 				       const gchar *atom_name)
 | |
| {
 | |
|   g_return_val_if_fail (GDK_IS_DISPLAY (display), None);
 | |
|   return gdk_x11_atom_to_xatom_for_display (display,
 | |
| 					    gdk_atom_intern (atom_name, FALSE));
 | |
| }
 | |
| 
 | |
| /**
 | |
|  * gdk_x11_get_xatom_by_name:
 | |
|  * @atom_name: a string
 | |
|  * 
 | |
|  * Returns the X atom for GDK's default display corresponding to @atom_name.
 | |
|  * This function caches the result, so if called repeatedly it is much
 | |
|  * faster than XInternAtom(), which is a round trip to the server each time.
 | |
|  * 
 | |
|  * Return value: a X atom for GDK's default display.
 | |
|  **/
 | |
| Atom
 | |
| gdk_x11_get_xatom_by_name (const gchar *atom_name)
 | |
| {
 | |
|   return gdk_x11_get_xatom_by_name_for_display (gdk_display_get_default (),
 | |
| 						atom_name);
 | |
| }
 | |
| 
 | |
| /**
 | |
|  * gdk_x11_get_xatom_name_for_display:
 | |
|  * @display: the #GdkDisplay where @xatom is defined
 | |
|  * @xatom: an X atom 
 | |
|  * 
 | |
|  * Returns the name of an X atom for its display. This
 | |
|  * function is meant mainly for debugging, so for convenience, unlike
 | |
|  * XAtomName() and gdk_atom_name(), the result doesn't need to
 | |
|  * be freed. 
 | |
|  *
 | |
|  * Return value: name of the X atom; this string is owned by GDK,
 | |
|  *   so it shouldn't be modifed or freed. 
 | |
|  *
 | |
|  * Since: 2.2
 | |
|  **/
 | |
| G_CONST_RETURN gchar *
 | |
| gdk_x11_get_xatom_name_for_display (GdkDisplay *display,
 | |
| 				    Atom        xatom)
 | |
| {
 | |
|   g_return_val_if_fail (GDK_IS_DISPLAY (display), NULL);
 | |
| 
 | |
|   return get_atom_name (gdk_x11_xatom_to_atom_for_display (display, xatom));
 | |
| }
 | |
| 
 | |
| /**
 | |
|  * gdk_x11_get_xatom_name:
 | |
|  * @xatom: an X atom for GDK's default display
 | |
|  * 
 | |
|  * Returns the name of an X atom for GDK's default display. This
 | |
|  * function is meant mainly for debugging, so for convenience, unlike
 | |
|  * <function>XAtomName()</function> and gdk_atom_name(), the result 
 | |
|  * doesn't need to be freed. Also, this function will never return %NULL, 
 | |
|  * even if @xatom is invalid.
 | |
|  * 
 | |
|  * Return value: name of the X atom; this string is owned by GTK+,
 | |
|  *   so it shouldn't be modifed or freed. 
 | |
|  **/
 | |
| G_CONST_RETURN gchar *
 | |
| gdk_x11_get_xatom_name (Atom xatom)
 | |
| {
 | |
|   return get_atom_name (gdk_x11_xatom_to_atom (xatom));
 | |
| }
 | |
| 
 | |
| gboolean
 | |
| 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"
 | 
