gtk2/gtk/gtkstyleset.c

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/* GTK - The GIMP Toolkit
* Copyright (C) 2010 Carlos Garnacho <carlosg@gnome.org>
*
* 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.
*/
#include "config.h"
#include <stdlib.h>
#include <gobject/gvaluecollector.h>
#include "gtkstyleprovider.h"
#include "gtkstyleset.h"
#include "gtkprivate.h"
#include "gtkthemingengine.h"
#include "gtkintl.h"
#include "gtkalias.h"
typedef struct GtkStyleSetPrivate GtkStyleSetPrivate;
typedef struct PropertyData PropertyData;
typedef struct PropertyNode PropertyNode;
struct PropertyNode
{
GQuark property_quark;
GType property_type;
};
struct PropertyData
{
GValue default_value;
GValue values[GTK_STATE_LAST];
};
struct GtkStyleSetPrivate
{
GHashTable *color_map;
GHashTable *properties;
};
static GArray *properties = NULL;
#define GTK_STYLE_SET_GET_PRIVATE(o) (G_TYPE_INSTANCE_GET_PRIVATE ((o), GTK_TYPE_STYLE_SET, GtkStyleSetPrivate))
static void gtk_style_set_provider_init (GtkStyleProviderIface *iface);
static void gtk_style_set_finalize (GObject *object);
G_DEFINE_TYPE_EXTENDED (GtkStyleSet, gtk_style_set, G_TYPE_OBJECT, 0,
G_IMPLEMENT_INTERFACE (GTK_TYPE_STYLE_PROVIDER,
gtk_style_set_provider_init));
static void
gtk_style_set_class_init (GtkStyleSetClass *klass)
{
GObjectClass *object_class = G_OBJECT_CLASS (klass);
object_class->finalize = gtk_style_set_finalize;
/* Initialize default property set */
gtk_style_set_register_property ("foreground-color", GDK_TYPE_COLOR);
gtk_style_set_register_property ("background-color", GDK_TYPE_COLOR);
gtk_style_set_register_property ("text-color", GDK_TYPE_COLOR);
gtk_style_set_register_property ("base-color", GDK_TYPE_COLOR);
gtk_style_set_register_property ("font", PANGO_TYPE_FONT_DESCRIPTION);
gtk_style_set_register_property ("padding", GTK_TYPE_BORDER);
gtk_style_set_register_property ("engine", GTK_TYPE_THEMING_ENGINE);
g_type_class_add_private (object_class, sizeof (GtkStyleSetPrivate));
}
static PropertyData *
property_data_new (void)
{
PropertyData *data;
data = g_slice_new0 (PropertyData);
return data;
}
static void
property_data_free (PropertyData *data)
{
gint i;
for (i = 0; i <= GTK_STATE_INSENSITIVE; i++)
{
if (G_IS_VALUE (&data->values[i]))
g_value_unset (&data->values[i]);
}
g_slice_free (PropertyData, data);
}
static void
gtk_style_set_init (GtkStyleSet *set)
{
GtkStyleSetPrivate *priv;
priv = GTK_STYLE_SET_GET_PRIVATE (set);
priv->properties = g_hash_table_new_full (NULL, NULL, NULL,
(GDestroyNotify) property_data_free);
}
static void
gtk_style_set_finalize (GObject *object)
{
GtkStyleSetPrivate *priv;
priv = GTK_STYLE_SET_GET_PRIVATE (object);
g_hash_table_destroy (priv->properties);
if (priv->color_map)
g_hash_table_destroy (priv->color_map);
G_OBJECT_CLASS (gtk_style_set_parent_class)->finalize (object);
}
GtkStyleSet *
gtk_style_set_get_style (GtkStyleProvider *provider,
GtkWidgetPath *path)
{
/* Return style set itself */
return g_object_ref (provider);
}
static void
gtk_style_set_provider_init (GtkStyleProviderIface *iface)
{
iface->get_style = gtk_style_set_get_style;
}
static int
compare_property (gconstpointer p1,
gconstpointer p2)
{
PropertyNode *key = (PropertyNode *) p1;
PropertyNode *node = (PropertyNode *) p2;
return (int) key->property_quark - node->property_quark;
}
static PropertyNode *
property_node_lookup (GQuark quark)
{
PropertyNode key = { 0 };
if (!quark)
return NULL;
if (!properties)
return NULL;
key.property_quark = quark;
return bsearch (&key, properties->data, properties->len,
sizeof (PropertyNode), compare_property);
}
/* Property registration functions */
void
gtk_style_set_register_property (const gchar *property_name,
GType type)
{
PropertyNode *node, new = { 0 };
GQuark quark;
gint i;
g_return_if_fail (property_name != NULL);
g_return_if_fail (type != 0);
if (G_UNLIKELY (!properties))
properties = g_array_new (FALSE, TRUE, sizeof (PropertyNode));
quark = g_quark_try_string (property_name);
if ((node = property_node_lookup (quark)) != NULL)
{
g_warning ("Property \"%s\" was already registered with type %s",
property_name, g_type_name (node->property_type));
return;
}
quark = g_quark_from_string (property_name);
new.property_quark = quark;
new.property_type = type;
for (i = 0; i < properties->len; i++)
{
node = &g_array_index (properties, PropertyNode, i);
if (node->property_quark > quark)
break;
}
g_array_insert_val (properties, i, new);
}
gboolean
gtk_style_set_lookup_property (const gchar *property_name,
GType *type)
{
PropertyNode *node;
GtkStyleSetClass *klass;
gboolean found = FALSE;
GQuark quark;
gint i;
g_return_val_if_fail (property_name != NULL, FALSE);
klass = g_type_class_ref (GTK_TYPE_STYLE_SET);
quark = g_quark_try_string (property_name);
if (quark == 0)
{
g_type_class_unref (klass);
return FALSE;
}
for (i = 0; i < properties->len; i++)
{
node = &g_array_index (properties, PropertyNode, i);
if (node->property_quark == quark)
{
if (type)
*type = node->property_type;
found = TRUE;
break;
}
else if (node->property_quark > quark)
break;
}
g_type_class_unref (klass);
return found;
}
/* GtkStyleSet methods */
GtkStyleSet *
gtk_style_set_new (void)
{
return g_object_new (GTK_TYPE_STYLE_SET, NULL);
}
void
gtk_style_set_map_color (GtkStyleSet *set,
const gchar *name,
GtkSymbolicColor *color)
{
GtkStyleSetPrivate *priv;
g_return_if_fail (GTK_IS_STYLE_SET (set));
g_return_if_fail (name != NULL);
g_return_if_fail (color != NULL);
priv = GTK_STYLE_SET_GET_PRIVATE (set);
if (G_UNLIKELY (!priv->color_map))
priv->color_map = g_hash_table_new_full (g_str_hash,
g_str_equal,
(GDestroyNotify) g_free,
(GDestroyNotify) gtk_symbolic_color_unref);
g_hash_table_replace (priv->color_map,
g_strdup (name),
gtk_symbolic_color_ref (color));
}
GtkSymbolicColor *
gtk_style_set_lookup_color (GtkStyleSet *set,
const gchar *name)
{
GtkStyleSetPrivate *priv;
g_return_val_if_fail (GTK_IS_STYLE_SET (set), NULL);
g_return_val_if_fail (name != NULL, NULL);
priv = GTK_STYLE_SET_GET_PRIVATE (set);
if (!priv->color_map)
return NULL;
return g_hash_table_lookup (priv->color_map, name);
}
static void
set_property_internal (GtkStyleSet *set,
const gchar *property,
gboolean is_default,
GtkStateType state,
const GValue *value)
{
GtkStyleSetPrivate *priv;
PropertyNode *node;
PropertyData *prop;
GValue *val;
node = property_node_lookup (g_quark_try_string (property));
if (!node)
{
g_warning ("Style property \"%s\" is not registered", property);
return;
}
g_return_if_fail (node->property_type == G_VALUE_TYPE (value));
priv = GTK_STYLE_SET_GET_PRIVATE (set);
prop = g_hash_table_lookup (priv->properties,
GINT_TO_POINTER (node->property_quark));
if (!prop)
{
prop = property_data_new ();
g_hash_table_insert (priv->properties,
GINT_TO_POINTER (node->property_quark),
prop);
}
if (is_default)
val = &prop->default_value;
else
val = &prop->values[state];
if (G_IS_VALUE (val))
g_value_reset (val);
else
g_value_init (val, node->property_type);
g_value_copy (value, val);
}
void
gtk_style_set_set_default (GtkStyleSet *set,
const gchar *property,
const GValue *value)
{
g_return_if_fail (GTK_IS_STYLE_SET (set));
g_return_if_fail (property != NULL);
g_return_if_fail (value != NULL);
set_property_internal (set, property, TRUE, GTK_STATE_NORMAL, value);
}
void
gtk_style_set_set_property (GtkStyleSet *set,
const gchar *property,
GtkStateType state,
const GValue *value)
{
g_return_if_fail (GTK_IS_STYLE_SET (set));
g_return_if_fail (property != NULL);
g_return_if_fail (state < GTK_STATE_LAST);
g_return_if_fail (value != NULL);
set_property_internal (set, property, FALSE, state, value);
}
void
gtk_style_set_set_valist (GtkStyleSet *set,
GtkStateType state,
va_list args)
{
GtkStyleSetPrivate *priv;
const gchar *property_name;
g_return_if_fail (GTK_IS_STYLE_SET (set));
g_return_if_fail (state < GTK_STATE_LAST);
priv = GTK_STYLE_SET_GET_PRIVATE (set);
property_name = va_arg (args, const gchar *);
while (property_name)
{
PropertyNode *node;
PropertyData *prop;
gchar *error = NULL;
node = property_node_lookup (g_quark_try_string (property_name));
if (!node)
{
g_warning ("Style property \"%s\" is not registered", property_name);
break;
}
prop = g_hash_table_lookup (priv->properties,
GINT_TO_POINTER (node->property_quark));
if (!prop)
{
prop = property_data_new ();
g_hash_table_insert (priv->properties,
GINT_TO_POINTER (node->property_quark),
prop);
}
g_value_init (&prop->values[state], node->property_type);
G_VALUE_COLLECT (&prop->values[state], args, 0, &error);
if (error)
{
g_warning ("Could not set style property \"%s\": %s", property_name, error);
g_value_unset (&prop->values[state]);
g_free (error);
break;
}
property_name = va_arg (args, const gchar *);
}
}
void
gtk_style_set_set (GtkStyleSet *set,
GtkStateType state,
...)
{
va_list args;
g_return_if_fail (GTK_IS_STYLE_SET (set));
g_return_if_fail (state < GTK_STATE_LAST);
va_start (args, state);
gtk_style_set_set_valist (set, state, args);
va_end (args);
}
gboolean
gtk_style_set_get_property (GtkStyleSet *set,
const gchar *property,
GtkStateType state,
GValue *value)
{
GtkStyleSetPrivate *priv;
PropertyNode *node;
PropertyData *prop;
g_return_val_if_fail (GTK_IS_STYLE_SET (set), FALSE);
g_return_val_if_fail (property != NULL, FALSE);
g_return_val_if_fail (state < GTK_STATE_LAST, FALSE);
g_return_val_if_fail (value != NULL, FALSE);
node = property_node_lookup (g_quark_try_string (property));
if (!node)
{
g_warning ("Style property \"%s\" is not registered", property);
return FALSE;
}
priv = GTK_STYLE_SET_GET_PRIVATE (set);
prop = g_hash_table_lookup (priv->properties,
GINT_TO_POINTER (node->property_quark));
if (!prop)
return FALSE;
g_value_init (value, node->property_type);
if (!G_IS_VALUE (&prop->values[state]))
g_value_copy (&prop->default_value, value);
else
g_value_copy (&prop->values[state], value);
return TRUE;
}
void
gtk_style_set_get_valist (GtkStyleSet *set,
GtkStateType state,
va_list args)
{
GtkStyleSetPrivate *priv;
const gchar *property_name;
g_return_if_fail (GTK_IS_STYLE_SET (set));
g_return_if_fail (state < GTK_STATE_LAST);
priv = GTK_STYLE_SET_GET_PRIVATE (set);
property_name = va_arg (args, const gchar *);
while (property_name)
{
PropertyNode *node;
PropertyData *prop;
gchar *error = NULL;
node = property_node_lookup (g_quark_try_string (property_name));
if (!node)
{
g_warning ("Style property \"%s\" is not registered", property_name);
break;
}
prop = g_hash_table_lookup (priv->properties,
GINT_TO_POINTER (node->property_quark));
if (!prop)
{
GValue *empty_value = { 0 };
g_warning ("No value for style property \"%s\"", property_name);
g_value_init (&empty_value, node->property_type);
G_VALUE_LCOPY (&empty_value, args, 0, &error);
}
else if (!G_IS_VALUE (&prop->values[state]))
G_VALUE_LCOPY (&prop->default_value, args, 0, &error);
else
G_VALUE_LCOPY (&prop->values[state], args, 0, &error);
if (error)
{
g_warning ("Could not get style property \"%s\": %s", property_name, error);
g_free (error);
break;
}
property_name = va_arg (args, const gchar *);
}
}
void
gtk_style_set_get (GtkStyleSet *set,
GtkStateType state,
...)
{
va_list args;
g_return_if_fail (GTK_IS_STYLE_SET (set));
g_return_if_fail (state < GTK_STATE_LAST);
va_start (args, state);
gtk_style_set_get_valist (set, state, args);
va_end (args);
}
void
gtk_style_set_unset_property (GtkStyleSet *set,
const gchar *property,
GtkStateType state)
{
GtkStyleSetPrivate *priv;
PropertyNode *node;
PropertyData *prop;
g_return_if_fail (GTK_IS_STYLE_SET (set));
g_return_if_fail (property != NULL);
g_return_if_fail (state < GTK_STATE_LAST);
node = property_node_lookup (g_quark_try_string (property));
if (!node)
{
g_warning ("Style property \"%s\" is not registered", property);
return;
}
priv = GTK_STYLE_SET_GET_PRIVATE (set);
prop = g_hash_table_lookup (priv->properties,
GINT_TO_POINTER (node->property_quark));
if (!prop)
return;
g_value_unset (&prop->values[state]);
}
void
gtk_style_set_clear (GtkStyleSet *set)
{
GtkStyleSetPrivate *priv;
g_return_if_fail (GTK_IS_STYLE_SET (set));
priv = GTK_STYLE_SET_GET_PRIVATE (set);
g_hash_table_remove_all (priv->properties);
}
void
gtk_style_set_merge (GtkStyleSet *set,
const GtkStyleSet *set_to_merge,
gboolean replace)
{
GtkStyleSetPrivate *priv, *priv_to_merge;
GHashTableIter iter;
gpointer key, value;
g_return_if_fail (GTK_IS_STYLE_SET (set));
g_return_if_fail (GTK_IS_STYLE_SET (set_to_merge));
priv = GTK_STYLE_SET_GET_PRIVATE (set);
priv_to_merge = GTK_STYLE_SET_GET_PRIVATE (set_to_merge);
/* Merge symbolic color map */
if (priv_to_merge->color_map)
{
g_hash_table_iter_init (&iter, priv_to_merge->color_map);
while (g_hash_table_iter_next (&iter, &key, &value))
{
const gchar *name;
GtkSymbolicColor *color;
name = key;
color = value;
if (!replace &&
g_hash_table_lookup (priv->color_map, name))
continue;
gtk_style_set_map_color (set, name, color);
}
}
/* Merge symbolic style properties */
g_hash_table_iter_init (&iter, priv_to_merge->properties);
while (g_hash_table_iter_next (&iter, &key, &value))
{
PropertyData *prop_to_merge = value;
PropertyData *prop = NULL;
GtkStateType i;
for (i = GTK_STATE_NORMAL; i < GTK_STATE_LAST; i++)
{
if (G_VALUE_TYPE (&prop_to_merge->values[i]) == G_TYPE_INVALID)
continue;
if (!prop)
prop = g_hash_table_lookup (priv->properties, key);
if (!prop)
{
prop = property_data_new ();
g_hash_table_insert (priv->properties, key, prop);
}
if (replace ||
G_VALUE_TYPE (&prop->values[i]) == G_TYPE_INVALID)
{
if (G_VALUE_TYPE (&prop->values[i]) == G_TYPE_INVALID)
g_value_init (&prop->values[i], G_VALUE_TYPE (&prop_to_merge->values[i]));
g_value_copy (&prop_to_merge->values[i],
&prop->values[i]);
}
}
if (G_IS_VALUE (&prop_to_merge->default_value) &&
(replace || !prop || !G_IS_VALUE (&prop->default_value)))
{
if (!prop)
prop = g_hash_table_lookup (priv->properties, key);
if (!prop)
{
prop = property_data_new ();
g_hash_table_insert (priv->properties, key, prop);
}
if (!G_IS_VALUE (&prop->default_value))
g_value_init (&prop->default_value, G_VALUE_TYPE (&prop_to_merge->default_value));
g_value_copy (&prop_to_merge->default_value,
&prop->default_value);
}
}
}
#define __GTK_STYLE_SET_C__
#include "gtkaliasdef.c"