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/* GTK - The GIMP Toolkit
* Copyright (C) 2015 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 "gtkimagedefinitionprivate.h"
typedef struct _GtkImageDefinitionEmpty GtkImageDefinitionEmpty;
typedef struct _GtkImageDefinitionIconName GtkImageDefinitionIconName;
typedef struct _GtkImageDefinitionGIcon GtkImageDefinitionGIcon;
typedef struct _GtkImageDefinitionPaintable GtkImageDefinitionPaintable;
struct _GtkImageDefinitionEmpty {
GtkImageType type;
gint ref_count;
};
struct _GtkImageDefinitionIconName {
GtkImageType type;
gint ref_count;
char *icon_name;
};
struct _GtkImageDefinitionGIcon {
GtkImageType type;
gint ref_count;
GIcon *gicon;
};
struct _GtkImageDefinitionPaintable {
GtkImageType type;
gint ref_count;
GdkPaintable *paintable;
};
union _GtkImageDefinition
{
GtkImageType type;
GtkImageDefinitionEmpty empty;
GtkImageDefinitionIconName icon_name;
GtkImageDefinitionGIcon gicon;
GtkImageDefinitionPaintable paintable;
};
GtkImageDefinition *
gtk_image_definition_new_empty (void)
{
static GtkImageDefinitionEmpty empty = { GTK_IMAGE_EMPTY, 1 };
return gtk_image_definition_ref ((GtkImageDefinition *) &empty);
}
static inline GtkImageDefinition *
gtk_image_definition_alloc (GtkImageType type)
{
static gsize sizes[] = {
sizeof (GtkImageDefinitionEmpty),
sizeof (GtkImageDefinitionIconName),
sizeof (GtkImageDefinitionGIcon),
sizeof (GtkImageDefinitionPaintable)
};
GtkImageDefinition *def;
g_assert (type < G_N_ELEMENTS (sizes));
def = g_malloc0 (sizes[type]);
def->type = type;
def->empty.ref_count = 1;
return def;
}
GtkImageDefinition *
gtk_image_definition_new_icon_name (const char *icon_name)
{
GtkImageDefinition *def;
if (icon_name == NULL || icon_name[0] == '\0')
return NULL;
def = gtk_image_definition_alloc (GTK_IMAGE_ICON_NAME);
def->icon_name.icon_name = g_strdup (icon_name);
return def;
}
GtkImageDefinition *
gtk_image_definition_new_gicon (GIcon *gicon)
{
GtkImageDefinition *def;
if (gicon == NULL)
return NULL;
def = gtk_image_definition_alloc (GTK_IMAGE_GICON);
def->gicon.gicon = g_object_ref (gicon);
return def;
}
GtkImageDefinition *
gtk_image_definition_new_paintable (GdkPaintable *paintable)
{
GtkImageDefinition *def;
if (paintable == NULL)
return NULL;
def = gtk_image_definition_alloc (GTK_IMAGE_PAINTABLE);
def->paintable.paintable = g_object_ref (paintable);
return def;
}
GtkImageDefinition *
gtk_image_definition_ref (GtkImageDefinition *def)
{
def->empty.ref_count++;
return def;
}
void
gtk_image_definition_unref (GtkImageDefinition *def)
{
def->empty.ref_count--;
if (def->empty.ref_count > 0)
return;
switch (def->type)
{
default:
case GTK_IMAGE_EMPTY:
g_assert_not_reached ();
break;
case GTK_IMAGE_PAINTABLE:
g_object_unref (def->paintable.paintable);
break;
case GTK_IMAGE_ICON_NAME:
g_free (def->icon_name.icon_name);
break;
case GTK_IMAGE_GICON:
g_object_unref (def->gicon.gicon);
break;
}
g_free (def);
}
GtkImageType
gtk_image_definition_get_storage_type (const GtkImageDefinition *def)
{
return def->type;
}
gint
gtk_image_definition_get_scale (const GtkImageDefinition *def)
{
switch (def->type)
{
default:
g_assert_not_reached ();
case GTK_IMAGE_EMPTY:
case GTK_IMAGE_PAINTABLE:
case GTK_IMAGE_ICON_NAME:
case GTK_IMAGE_GICON:
return 1;
}
}
const gchar *
gtk_image_definition_get_icon_name (const GtkImageDefinition *def)
{
if (def->type != GTK_IMAGE_ICON_NAME)
return NULL;
return def->icon_name.icon_name;
}
GIcon *
gtk_image_definition_get_gicon (const GtkImageDefinition *def)
{
if (def->type != GTK_IMAGE_GICON)
return NULL;
return def->gicon.gicon;
}
GdkPaintable *
gtk_image_definition_get_paintable (const GtkImageDefinition *def)
{
if (def->type != GTK_IMAGE_PAINTABLE)
return NULL;
return def->paintable.paintable;
}
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