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/* GTK - The GIMP Toolkit
* Copyright (C) 2011 Benjamin Otte <otte@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, see <http://www.gnu.org/licenses/>.
*/
#include "config.h"
#include "gtkcsslookupprivate.h"
#include "gtkcssstylepropertyprivate.h"
#include "gtkcsstypesprivate.h"
#include "gtkprivatetypebuiltins.h"
#include "gtkprivate.h"
GtkCssLookup *
gtk_css_lookup_new (void)
{
GtkCssLookup *lookup = g_new0 (GtkCssLookup, 1);
lookup->ref_count = 1;
lookup->set_values = _gtk_bitmask_new ();
return lookup;
}
static void
gtk_css_lookup_free (GtkCssLookup *lookup)
{
_gtk_bitmask_free (lookup->set_values);
g_free (lookup);
}
GtkCssLookup *
gtk_css_lookup_ref (GtkCssLookup *lookup)
{
gtk_internal_return_val_if_fail (lookup != NULL, NULL);
gtk_internal_return_val_if_fail (lookup->ref_count > 0, NULL);
lookup->ref_count++;
return lookup;
}
void
gtk_css_lookup_unref (GtkCssLookup *lookup)
{
gtk_internal_return_if_fail (lookup != NULL);
gtk_internal_return_if_fail (lookup->ref_count > 0);
lookup->ref_count--;
if (lookup->ref_count == 0)
gtk_css_lookup_free (lookup);
}
gboolean
gtk_css_lookup_is_missing (const GtkCssLookup *lookup,
guint id)
{
gtk_internal_return_val_if_fail (lookup != NULL, FALSE);
return !_gtk_bitmask_get (lookup->set_values, id);
}
/**
* _gtk_css_lookup_set:
* @lookup: the lookup
* @id: id of the property to set, see _gtk_style_property_get_id()
* @section: (allow-none): The @section the value was defined in or %NULL
* @value: the “cascading value” to use
*
* Sets the @value for a given @id. No value may have been set for @id
* before. See _gtk_css_lookup_is_missing(). This function is used to
* set the “winning declaration” of a lookup. Note that for performance
* reasons @value and @section are not copied. It is your responsibility
* to ensure they are kept alive until _gtk_css_lookup_free() is called.
**/
void
gtk_css_lookup_set (GtkCssLookup *lookup,
guint id,
GtkCssSection *section,
GtkCssValue *value)
{
gtk_internal_return_if_fail (lookup != NULL);
gtk_internal_return_if_fail (value != NULL);
gtk_internal_return_if_fail (lookup->values[id].value == NULL);
lookup->values[id].value = value;
lookup->values[id].section = section;
lookup->set_values = _gtk_bitmask_set (lookup->set_values, id, TRUE);
}
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