forked from AuroraMiddleware/gtk
164 lines
6.2 KiB
C
164 lines
6.2 KiB
C
/* gtktreesortable.h
|
|
* Copyright (C) 2001 Red Hat, Inc.
|
|
*
|
|
* This library is free software; you can redistribute it and/or
|
|
* modify it under the terms of the GNU Library 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
|
|
* Library General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU Library General Public
|
|
* License along with this library. If not, see <http://www.gnu.org/licenses/>.
|
|
*/
|
|
|
|
#ifndef __GTK_TREE_SORTABLE_H__
|
|
#define __GTK_TREE_SORTABLE_H__
|
|
|
|
|
|
#if !defined (__GTK_H_INSIDE__) && !defined (GTK_COMPILATION)
|
|
#error "Only <gtk/gtk.h> can be included directly."
|
|
#endif
|
|
|
|
#include <gtk/gtkenums.h>
|
|
#include <gtk/gtktreemodel.h>
|
|
|
|
|
|
G_BEGIN_DECLS
|
|
|
|
#define GTK_TYPE_TREE_SORTABLE (gtk_tree_sortable_get_type ())
|
|
#define GTK_TREE_SORTABLE(obj) (G_TYPE_CHECK_INSTANCE_CAST ((obj), GTK_TYPE_TREE_SORTABLE, GtkTreeSortable))
|
|
#define GTK_TREE_SORTABLE_CLASS(obj) (G_TYPE_CHECK_CLASS_CAST ((obj), GTK_TYPE_TREE_SORTABLE, GtkTreeSortableIface))
|
|
#define GTK_IS_TREE_SORTABLE(obj) (G_TYPE_CHECK_INSTANCE_TYPE ((obj), GTK_TYPE_TREE_SORTABLE))
|
|
#define GTK_TREE_SORTABLE_GET_IFACE(obj) (G_TYPE_INSTANCE_GET_INTERFACE ((obj), GTK_TYPE_TREE_SORTABLE, GtkTreeSortableIface))
|
|
|
|
/**
|
|
* GTK_TREE_SORTABLE_DEFAULT_SORT_COLUMN_ID:
|
|
*
|
|
* The GTK_TREE_SORTABLE_DEFAULT_SORT_COLUMN_ID can be used to make a
|
|
* #GtkTreeSortable use the default sort function.
|
|
*
|
|
* See also gtk_tree_sortable_set_sort_column_id()
|
|
*/
|
|
#define GTK_TREE_SORTABLE_DEFAULT_SORT_COLUMN_ID (-1)
|
|
|
|
/**
|
|
* GTK_TREE_SORTABLE_UNSORTED_SORT_COLUMN_ID:
|
|
*
|
|
* The GTK_TREE_SORTABLE_UNSORTED_SORT_COLUMN_ID can be used to make a
|
|
* #GtkTreeSortable use no sorting.
|
|
*
|
|
* See also gtk_tree_sortable_set_sort_column_id()
|
|
*/
|
|
#define GTK_TREE_SORTABLE_UNSORTED_SORT_COLUMN_ID (-2)
|
|
|
|
typedef struct _GtkTreeSortable GtkTreeSortable; /* Dummy typedef */
|
|
typedef struct _GtkTreeSortableIface GtkTreeSortableIface;
|
|
|
|
/**
|
|
* GtkTreeIterCompareFunc:
|
|
* @model: The #GtkTreeModel the comparison is within
|
|
* @a: A #GtkTreeIter in @model
|
|
* @b: Another #GtkTreeIter in @model
|
|
* @user_data: Data passed when the compare func is assigned e.g. by
|
|
* gtk_tree_sortable_set_sort_func()
|
|
*
|
|
* A GtkTreeIterCompareFunc should return a negative integer, zero, or a positive
|
|
* integer if @a sorts before @b, @a sorts with @b, or @a sorts after @b
|
|
* respectively. If two iters compare as equal, their order in the sorted model
|
|
* is undefined. In order to ensure that the #GtkTreeSortable behaves as
|
|
* expected, the GtkTreeIterCompareFunc must define a partial order on
|
|
* the model, i.e. it must be reflexive, antisymmetric and transitive.
|
|
*
|
|
* For example, if @model is a product catalogue, then a compare function
|
|
* for the “price” column could be one which returns
|
|
* `price_of(@a) - price_of(@b)`.
|
|
*
|
|
* Returns: a negative integer, zero or a positive integer depending on whether
|
|
* @a sorts before, with or after @b
|
|
*/
|
|
typedef gint (* GtkTreeIterCompareFunc) (GtkTreeModel *model,
|
|
GtkTreeIter *a,
|
|
GtkTreeIter *b,
|
|
gpointer user_data);
|
|
|
|
|
|
/**
|
|
* GtkTreeSortableIface:
|
|
* @sort_column_changed: Signal emitted when the sort column or sort
|
|
* order of sortable is changed.
|
|
* @get_sort_column_id: Fills in sort_column_id and order with the
|
|
* current sort column and the order.
|
|
* @set_sort_column_id: Sets the current sort column to be
|
|
* sort_column_id.
|
|
* @set_sort_func: Sets the comparison function used when sorting to
|
|
* be sort_func.
|
|
* @set_default_sort_func: Sets the default comparison function used
|
|
* when sorting to be sort_func.
|
|
* @has_default_sort_func: %TRUE if the model has a default sort
|
|
* function.
|
|
*/
|
|
struct _GtkTreeSortableIface
|
|
{
|
|
/*< private >*/
|
|
GTypeInterface g_iface;
|
|
|
|
/*< public >*/
|
|
|
|
/* signals */
|
|
void (* sort_column_changed) (GtkTreeSortable *sortable);
|
|
|
|
/* virtual table */
|
|
gboolean (* get_sort_column_id) (GtkTreeSortable *sortable,
|
|
gint *sort_column_id,
|
|
GtkSortType *order);
|
|
void (* set_sort_column_id) (GtkTreeSortable *sortable,
|
|
gint sort_column_id,
|
|
GtkSortType order);
|
|
void (* set_sort_func) (GtkTreeSortable *sortable,
|
|
gint sort_column_id,
|
|
GtkTreeIterCompareFunc sort_func,
|
|
gpointer user_data,
|
|
GDestroyNotify destroy);
|
|
void (* set_default_sort_func) (GtkTreeSortable *sortable,
|
|
GtkTreeIterCompareFunc sort_func,
|
|
gpointer user_data,
|
|
GDestroyNotify destroy);
|
|
gboolean (* has_default_sort_func) (GtkTreeSortable *sortable);
|
|
};
|
|
|
|
|
|
GDK_AVAILABLE_IN_ALL
|
|
GType gtk_tree_sortable_get_type (void) G_GNUC_CONST;
|
|
|
|
GDK_AVAILABLE_IN_ALL
|
|
void gtk_tree_sortable_sort_column_changed (GtkTreeSortable *sortable);
|
|
GDK_AVAILABLE_IN_ALL
|
|
gboolean gtk_tree_sortable_get_sort_column_id (GtkTreeSortable *sortable,
|
|
gint *sort_column_id,
|
|
GtkSortType *order);
|
|
GDK_AVAILABLE_IN_ALL
|
|
void gtk_tree_sortable_set_sort_column_id (GtkTreeSortable *sortable,
|
|
gint sort_column_id,
|
|
GtkSortType order);
|
|
GDK_AVAILABLE_IN_ALL
|
|
void gtk_tree_sortable_set_sort_func (GtkTreeSortable *sortable,
|
|
gint sort_column_id,
|
|
GtkTreeIterCompareFunc sort_func,
|
|
gpointer user_data,
|
|
GDestroyNotify destroy);
|
|
GDK_AVAILABLE_IN_ALL
|
|
void gtk_tree_sortable_set_default_sort_func (GtkTreeSortable *sortable,
|
|
GtkTreeIterCompareFunc sort_func,
|
|
gpointer user_data,
|
|
GDestroyNotify destroy);
|
|
GDK_AVAILABLE_IN_ALL
|
|
gboolean gtk_tree_sortable_has_default_sort_func (GtkTreeSortable *sortable);
|
|
|
|
G_END_DECLS
|
|
|
|
#endif /* __GTK_TREE_SORTABLE_H__ */
|