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/*
* Copyright © 2020 Benjamin Otte
*
* 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 2.1 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/>.
*/
#pragma once
#include <gdk/gdk.h>
#include <gtk/gtkenums.h>
#include <gtk/gtksorter.h>
typedef struct _GtkSortKeys GtkSortKeys;
typedef struct _GtkSortKeysClass GtkSortKeysClass;
struct _GtkSortKeys
{
const GtkSortKeysClass *klass;
int ref_count;
gsize key_size;
gsize key_align; /* must be power of 2 */
};
struct _GtkSortKeysClass
{
void (* free) (GtkSortKeys *self);
GCompareDataFunc key_compare;
gboolean (* is_compatible) (GtkSortKeys *self,
GtkSortKeys *other);
void (* init_key) (GtkSortKeys *self,
gpointer item,
gpointer key_memory);
void (* clear_key) (GtkSortKeys *self,
gpointer key_memory);
};
GtkSortKeys * gtk_sort_keys_alloc (const GtkSortKeysClass *klass,
gsize size,
gsize key_size,
gsize key_align);
#define gtk_sort_keys_new(_name, _klass, _key_size, _key_align) \
((_name *) gtk_sort_keys_alloc ((_klass), sizeof (_name), (_key_size), (_key_align)))
GtkSortKeys * gtk_sort_keys_ref (GtkSortKeys *self);
void gtk_sort_keys_unref (GtkSortKeys *self);
GtkSortKeys * gtk_sort_keys_new_equal (void);
gsize gtk_sort_keys_get_key_size (GtkSortKeys *self);
gsize gtk_sort_keys_get_key_align (GtkSortKeys *self);
GCompareDataFunc gtk_sort_keys_get_key_compare_func (GtkSortKeys *self);
gboolean gtk_sort_keys_is_compatible (GtkSortKeys *self,
GtkSortKeys *other);
gboolean gtk_sort_keys_needs_clear_key (GtkSortKeys *self);
#define GTK_SORT_KEYS_ALIGN(_size,_align) (((_size) + (_align) - 1) & ~((_align) - 1))
static inline int
gtk_sort_keys_compare (GtkSortKeys *self,
gconstpointer a,
gconstpointer b)
{
return self->klass->key_compare (a, b, self);
}
static inline void
gtk_sort_keys_init_key (GtkSortKeys *self,
gpointer item,
gpointer key_memory)
{
self->klass->init_key (self, item, key_memory);
}
static inline void
gtk_sort_keys_clear_key (GtkSortKeys *self,
gpointer key_memory)
{
if (self->klass->clear_key)
self->klass->clear_key (self, key_memory);
}
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