/* gtktreesortable.c
* Copyright ( C ) 2000 Red Hat , Inc . , Jonathan Blandford < jrb @ redhat . com >
*
* 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/>.
*/
#include "config.h"
#include "gtktreesortable.h"
#include "gtkmarshalers.h"
#include "gtkprivate.h"
G_GNUC_BEGIN_IGNORE_DEPRECATIONS
/**
* GtkTreeSortable :
*
* The interface for sortable models used by GtkTreeView
*
* ` GtkTreeSortable ` is an interface to be implemented by tree models which
* support sorting . The ` GtkTreeView ` uses the methods provided by this interface
* to sort the model .
*
* Deprecated : 4 . 10 : There is no replacement for this interface . You should
* use [ class @ Gtk . SortListModel ] to wrap your list model instead
*/
static void gtk_tree_sortable_base_init (gpointer g_class);
GType
gtk_tree_sortable_get_type (void )
{
static GType tree_sortable_type = 0 ;
if (! tree_sortable_type)
{
const GTypeInfo tree_sortable_info =
{
sizeof (GtkTreeSortableIface), /* class_size */
gtk_tree_sortable_base_init, /* base_init */
NULL, /* base_finalize */
NULL,
NULL, /* class_finalize */
NULL, /* class_data */
0 ,
0 ,
NULL
};
tree_sortable_type =
g_type_register_static (G_TYPE_INTERFACE, I_("GtkTreeSortable" ),
&tree_sortable_info, 0 );
g_type_interface_add_prerequisite (tree_sortable_type, GTK_TYPE_TREE_MODEL);
}
return tree_sortable_type;
}
static void
gtk_tree_sortable_base_init (gpointer g_class)
{
static gboolean initialized = FALSE ;
if (! initialized)
{
/**
* GtkTreeSortable : : sort - column - changed :
* @ sortable : the object on which the signal is emitted
*
* The : : sort - column - changed signal is emitted when the sort column
* or sort order of @ sortable is changed . The signal is emitted before
* the contents of @ sortable are resorted .
*/
g_signal_new (I_("sort-column-changed" ),
GTK_TYPE_TREE_SORTABLE,
G_SIGNAL_RUN_LAST,
G_STRUCT_OFFSET (GtkTreeSortableIface, sort_column_changed),
NULL, NULL,
NULL,
G_TYPE_NONE, 0 );
initialized = TRUE ;
}
}
/**
* gtk_tree_sortable_sort_column_changed :
* @ sortable : A ` GtkTreeSortable `
*
* Emits a ` GtkTreeSortable : : sort - column - changed ` signal on @ sortable .
*
* Deprecated : 4 . 10
*/
void
gtk_tree_sortable_sort_column_changed (GtkTreeSortable *sortable)
{
g_return_if_fail (GTK_IS_TREE_SORTABLE (sortable));
g_signal_emit_by_name (sortable, "sort-column-changed" );
}
/**
* gtk_tree_sortable_get_sort_column_id :
* @ sortable : A ` GtkTreeSortable `
* @ sort_column_id : ( out ) : The sort column id to be filled in
* @ order : ( out ) : The ` GtkSortType ` to be filled in
*
* Fills in @ sort_column_id and @ order with the current sort column and the
* order . It returns % TRUE unless the @ sort_column_id is
* % GTK_TREE_SORTABLE_DEFAULT_SORT_COLUMN_ID or
* % GTK_TREE_SORTABLE_UNSORTED_SORT_COLUMN_ID .
*
* Returns : % TRUE if the sort column is not one of the special sort
* column ids .
*
* Deprecated : 4 . 10
**/
gboolean
gtk_tree_sortable_get_sort_column_id (GtkTreeSortable *sortable,
int *sort_column_id,
GtkSortType *order)
{
GtkTreeSortableIface *iface;
g_return_val_if_fail (GTK_IS_TREE_SORTABLE (sortable), FALSE );
iface = GTK_TREE_SORTABLE_GET_IFACE (sortable);
g_return_val_if_fail (iface != NULL, FALSE );
g_return_val_if_fail (iface->get_sort_column_id != NULL, FALSE );
return (* iface->get_sort_column_id) (sortable, sort_column_id, order);
}
/**
* gtk_tree_sortable_set_sort_column_id :
* @ sortable : A ` GtkTreeSortable `
* @ sort_column_id : the sort column id to set
* @ order : The sort order of the column
*
* Sets the current sort column to be @ sort_column_id . The @ sortable will
* resort itself to reflect this change , after emitting a
* ` GtkTreeSortable : : sort - column - changed ` signal . @ sort_column_id may either be
* a regular column id , or one of the following special values :
*
* - % GTK_TREE_SORTABLE_DEFAULT_SORT_COLUMN_ID : the default sort function
* will be used , if it is set
*
* - % GTK_TREE_SORTABLE_UNSORTED_SORT_COLUMN_ID : no sorting will occur
*
* Deprecated : 4 . 10
*/
void
gtk_tree_sortable_set_sort_column_id (GtkTreeSortable *sortable,
int sort_column_id,
GtkSortType order)
{
GtkTreeSortableIface *iface;
g_return_if_fail (GTK_IS_TREE_SORTABLE (sortable));
iface = GTK_TREE_SORTABLE_GET_IFACE (sortable);
g_return_if_fail (iface != NULL);
g_return_if_fail (iface->set_sort_column_id != NULL);
(* iface->set_sort_column_id) (sortable, sort_column_id, order);
}
/**
* gtk_tree_sortable_set_sort_func :
* @ sortable : A ` GtkTreeSortable `
* @ sort_column_id : the sort column id to set the function for
* @ sort_func : ( scope notified ) ( closure user_data ) ( destroy destroy ) : The comparison function
* @ user_data : User data to pass to @ sort_func
* @ destroy : ( nullable ) : Destroy notifier of @ user_data
*
* Sets the comparison function used when sorting to be @ sort_func . If the
* current sort column id of @ sortable is the same as @ sort_column_id , then
* the model will sort using this function .
*
* Deprecated : 4 . 10
*/
void
gtk_tree_sortable_set_sort_func (GtkTreeSortable *sortable,
int sort_column_id,
GtkTreeIterCompareFunc sort_func,
gpointer user_data,
GDestroyNotify destroy)
{
GtkTreeSortableIface *iface;
g_return_if_fail (GTK_IS_TREE_SORTABLE (sortable));
g_return_if_fail (sort_func != NULL);
iface = GTK_TREE_SORTABLE_GET_IFACE (sortable);
g_return_if_fail (iface != NULL);
g_return_if_fail (iface->set_sort_func != NULL);
g_return_if_fail (sort_column_id >= 0 );
(* iface->set_sort_func) (sortable, sort_column_id, sort_func, user_data, destroy);
}
/**
* gtk_tree_sortable_set_default_sort_func :
* @ sortable : A ` GtkTreeSortable `
* @ sort_func : ( scope notified ) ( closure user_data ) ( destroy destroy ) : The comparison function
* @ user_data : User data to pass to @ sort_func
* @ destroy : ( nullable ) : Destroy notifier of @ user_data
*
* Sets the default comparison function used when sorting to be @ sort_func .
* If the current sort column id of @ sortable is
* % GTK_TREE_SORTABLE_DEFAULT_SORT_COLUMN_ID , then the model will sort using
* this function .
*
* If @ sort_func is % NULL , then there will be no default comparison function .
* This means that once the model has been sorted , it can ’ t go back to the
* default state . In this case , when the current sort column id of @ sortable
* is % GTK_TREE_SORTABLE_DEFAULT_SORT_COLUMN_ID , the model will be unsorted .
*
* Deprecated : 4 . 10
*/
void
gtk_tree_sortable_set_default_sort_func (GtkTreeSortable *sortable,
GtkTreeIterCompareFunc sort_func,
gpointer user_data,
GDestroyNotify destroy)
{
GtkTreeSortableIface *iface;
g_return_if_fail (GTK_IS_TREE_SORTABLE (sortable));
iface = GTK_TREE_SORTABLE_GET_IFACE (sortable);
g_return_if_fail (iface != NULL);
g_return_if_fail (iface->set_default_sort_func != NULL);
(* iface->set_default_sort_func) (sortable, sort_func, user_data, destroy);
}
/**
* gtk_tree_sortable_has_default_sort_func :
* @ sortable : A ` GtkTreeSortable `
*
* Returns % TRUE if the model has a default sort function . This is used
* primarily by GtkTreeViewColumns in order to determine if a model can
* go back to the default state , or not .
*
* Returns : % TRUE , if the model has a default sort function
*
* Deprecated : 4 . 10
*/
gboolean
gtk_tree_sortable_has_default_sort_func (GtkTreeSortable *sortable)
{
GtkTreeSortableIface *iface;
g_return_val_if_fail (GTK_IS_TREE_SORTABLE (sortable), FALSE );
iface = GTK_TREE_SORTABLE_GET_IFACE (sortable);
g_return_val_if_fail (iface != NULL, FALSE );
g_return_val_if_fail (iface->has_default_sort_func != NULL, FALSE );
return (* iface->has_default_sort_func) (sortable);
}
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