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gtk2/gdk/directfb/gdkproperty-directfb.c

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/* 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.
*/
/*
* GTK+ DirectFB backend
* Copyright (C) 2001-2002 convergence integrated media GmbH
* Copyright (C) 2002-2004 convergence GmbH
* Written by Denis Oliver Kropp <dok@convergence.de> and
* Sven Neumann <sven@convergence.de>
*/
#include "config.h"
#include "gdk.h"
#include <string.h>
#include "gdkproperty.h"
#include "gdkdirectfb.h"
#include "gdkprivate-directfb.h"
#include "gdkinternals.h"
static GHashTable *names_to_atoms;
static GPtrArray *atoms_to_names;
static const gchar xatoms_string[] =
/* These are all the standard predefined X atoms */
"NONE\0"
"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"
;
static const gint xatoms_offset[] = {
0, 5, 13, 23, 27, 32, 39, 48, 57, 64, 76, 88,
100, 112, 124, 136, 148, 160, 169, 174, 182, 189, 195, 205,
222, 236, 249, 262, 278, 291, 305, 317, 324, 333, 340, 351,
360, 378, 391, 404, 412, 428, 442, 456, 466, 477, 487, 497,
511, 525, 537, 549, 568, 588, 605, 623, 636, 645, 656, 663,
674, 685, 695, 702, 712, 724, 734, 745, 754
};
#define N_CUSTOM_PREDEFINED 1
static void
ensure_atom_tables (void)
{
int i;
if (names_to_atoms)
return;
names_to_atoms = g_hash_table_new (g_str_hash, g_str_equal);
atoms_to_names = g_ptr_array_sized_new (G_N_ELEMENTS (xatoms_offset));
for (i = 0; i < G_N_ELEMENTS (xatoms_offset); i++)
{
g_hash_table_insert(names_to_atoms, (gchar *)xatoms_string + xatoms_offset[i], GINT_TO_POINTER (i));
g_ptr_array_add(atoms_to_names, (gchar *)xatoms_string + xatoms_offset[i]);
}
}
static GdkAtom
intern_atom_internal (const gchar *atom_name, gboolean allocate)
{
gpointer result;
gchar *name;
g_return_val_if_fail (atom_name != NULL, GDK_NONE);
ensure_atom_tables ();
if (g_hash_table_lookup_extended (names_to_atoms, atom_name, NULL, &result))
return result;
result = GINT_TO_POINTER (atoms_to_names->len);
name = allocate ? g_strdup (atom_name) : (gchar *)atom_name;
g_hash_table_insert(names_to_atoms, name, result);
g_ptr_array_add(atoms_to_names, name);
return result;
}
GdkAtom
gdk_atom_intern (const gchar *atom_name,
gboolean only_if_exists)
{
return intern_atom_internal (atom_name, TRUE);
}
GdkAtom
gdk_atom_intern_static_string (const gchar *atom_name)
{
return intern_atom_internal (atom_name, FALSE);
}
gchar *
gdk_atom_name (GdkAtom atom)
{
if (!atoms_to_names)
return NULL;
if (GPOINTER_TO_INT (atom) >= atoms_to_names->len)
return NULL;
return g_strdup(g_ptr_array_index (atoms_to_names, GPOINTER_TO_INT (atom)));
}
static void
gdk_property_delete_2 (GdkWindow *window,
GdkAtom property,
GdkWindowProperty *prop)
{
GdkWindowImplDirectFB *impl;
GdkEvent *event;
GdkWindow *event_window;
impl = GDK_WINDOW_IMPL_DIRECTFB (GDK_WINDOW_OBJECT (window)->impl);
g_hash_table_remove (impl->properties, GUINT_TO_POINTER (property));
g_free (prop);
event_window = gdk_directfb_other_event_window (window, GDK_PROPERTY_NOTIFY);
if (event_window)
{
event = gdk_directfb_event_make (event_window, GDK_PROPERTY_NOTIFY);
event->property.atom = property;
event->property.state = GDK_PROPERTY_DELETE;
}
}
void
gdk_property_delete (GdkWindow *window,
GdkAtom property)
{
GdkWindowImplDirectFB *impl;
GdkWindowProperty *prop;
g_return_if_fail (GDK_IS_WINDOW (window));
impl = GDK_WINDOW_IMPL_DIRECTFB (GDK_WINDOW_OBJECT (window)->impl);
if (!impl->properties)
return;
prop = g_hash_table_lookup (impl->properties, GUINT_TO_POINTER (property));
if (!prop)
return;
gdk_property_delete_2 (window, property, prop);
}
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)
{
GdkWindowImplDirectFB *impl;
GdkWindowProperty *prop;
gint nbytes = 0;
g_return_val_if_fail (window == NULL || GDK_IS_WINDOW (window), FALSE);
g_return_val_if_fail (data != NULL, FALSE);
if (!window)
window = _gdk_parent_root;
if (GDK_WINDOW_DESTROYED (window))
return FALSE;
impl = GDK_WINDOW_IMPL_DIRECTFB (GDK_WINDOW_OBJECT (window)->impl);
if (!impl->properties)
return FALSE;
prop = g_hash_table_lookup (impl->properties, GUINT_TO_POINTER (property));
if (!prop)
{
if (actual_property_type)
*actual_property_type = GDK_NONE;
return FALSE;
}
nbytes = CLAMP (length, 0, prop->length - offset * 4);
if (nbytes > 0 &&
(prop->type == 0 /* AnyPropertyType */ || prop->type == type))
{
*data = g_malloc (nbytes + 1);
memcpy (*data, prop->data + offset, nbytes);
(*data)[nbytes] = 0;
}
else
{
*data = NULL;
}
if (actual_length)
*actual_length = nbytes;
if (actual_property_type)
*actual_property_type = prop->type;
if (actual_format_type)
*actual_format_type = prop->format;
/* only delete the property if it was completely retrieved */
if (pdelete && length >= *actual_length && *data != NULL)
{
gdk_property_delete_2 (window, property, prop);
}
return TRUE;
}
void
gdk_property_change (GdkWindow *window,
GdkAtom property,
GdkAtom type,
gint format,
GdkPropMode mode,
const guchar *data,
gint nelements)
{
GdkWindowImplDirectFB *impl;
GdkWindowProperty *prop;
GdkWindowProperty *new_prop;
gint new_size = 0;
GdkEvent *event;
GdkWindow *event_window;
g_return_if_fail (window == NULL || GDK_IS_WINDOW (window));
if (!window)
window = _gdk_parent_root;
if (GDK_WINDOW_DESTROYED (window))
return;
impl = GDK_WINDOW_IMPL_DIRECTFB (GDK_WINDOW_OBJECT (window)->impl);
if (!impl->properties)
impl->properties = g_hash_table_new (NULL, NULL);
prop = g_hash_table_lookup (impl->properties, GUINT_TO_POINTER (property));
switch (mode)
{
case GDK_PROP_MODE_REPLACE:
new_size = nelements * (format >> 3);
break;
case GDK_PROP_MODE_PREPEND:
case GDK_PROP_MODE_APPEND:
new_size = nelements * (format >> 3);
if (prop)
{
if (type != prop->type || format != prop->format)
return;
new_size += prop->length;
}
break;
}
new_prop = g_malloc (G_STRUCT_OFFSET (GdkWindowProperty, data) + new_size);
new_prop->length = new_size;
new_prop->type = type;
new_prop->format = format;
switch (mode)
{
case GDK_PROP_MODE_REPLACE:
memcpy (new_prop->data, data, new_size);
break;
case GDK_PROP_MODE_APPEND:
if (prop)
memcpy (new_prop->data, prop->data, prop->length);
memcpy (new_prop->data + new_prop->length,
data, (nelements * (format >> 3)));
break;
case GDK_PROP_MODE_PREPEND:
memcpy (new_prop->data, data, (nelements * (format >> 3)));
if (prop)
memcpy (new_prop->data + (nelements * (format >> 3)),
prop->data, prop->length);
break;
}
g_hash_table_insert (impl->properties,
GUINT_TO_POINTER (property), new_prop);
g_free (prop);
event_window = gdk_directfb_other_event_window (window, GDK_PROPERTY_NOTIFY);
if (event_window)
{
event = gdk_directfb_event_make (event_window, GDK_PROPERTY_NOTIFY);
event->property.atom = property;
event->property.state = GDK_PROPERTY_NEW_VALUE;
}
}
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