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/*
* Copyright © 2018 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/>.
*
* Authors: Benjamin Otte <otte@gnome.org>
*/
#pragma once
#if !defined (__GTK_H_INSIDE__) && !defined (GTK_COMPILATION)
#error "Only <gtk/gtk.h> can be included directly."
#endif
#include <gtk/gtktypes.h>
G_BEGIN_DECLS
#define GTK_TYPE_SELECTION_MODEL (gtk_selection_model_get_type ())
GDK_AVAILABLE_IN_ALL
G_DECLARE_INTERFACE (GtkSelectionModel, gtk_selection_model, GTK, SELECTION_MODEL, GListModel)
/**
* GtkSelectionModelInterface:
* @is_selected: Return if the item at the given position is selected.
* @get_selection_in_range: Return a bitset with all currently selected
* items in the given range. By default, this function will call
* `GtkSelectionModel::is_selected()` on all items in the given range.
* @select_item: Select the item in the given position. If the operation
* is known to fail, return %FALSE.
* @unselect_item: Unselect the item in the given position. If the
* operation is known to fail, return %FALSE.
* @select_range: Select all items in the given range. If the operation
* is unsupported or known to fail for all items, return %FALSE.
* @unselect_range: Unselect all items in the given range. If the
* operation is unsupported or known to fail for all items, return
* %FALSE.
* @select_all: Select all items in the model. If the operation is
* unsupported or known to fail for all items, return %FALSE.
* @unselect_all: Unselect all items in the model. If the operation is
* unsupported or known to fail for all items, return %FALSE.
* @set_selection: Set selection state of all items in mask to selected.
* See gtk_selection_model_set_selection() for a detailed explanation
* of this function.
*
* The list of virtual functions for the `GtkSelectionModel` interface.
* No function must be implemented, but unless `GtkSelectionModel::is_selected()`
* is implemented, it will not be possible to select items in the set.
*
* The model does not need to implement any functions to support either
* selecting or unselecting items. Of course, if the model does not do that,
* it means that users cannot select or unselect items in a list widget
* using the model.
*
* All selection functions fall back to `GtkSelectionModel::set_selection()`
* so it is sufficient to implement just that function for full selection
* support.
*/
struct _GtkSelectionModelInterface
{
/*< private >*/
GTypeInterface g_iface;
/*< public >*/
gboolean (* is_selected) (GtkSelectionModel *model,
guint position);
GtkBitset * (* get_selection_in_range) (GtkSelectionModel *model,
guint position,
guint n_items);
gboolean (* select_item) (GtkSelectionModel *model,
guint position,
gboolean unselect_rest);
gboolean (* unselect_item) (GtkSelectionModel *model,
guint position);
gboolean (* select_range) (GtkSelectionModel *model,
guint position,
guint n_items,
gboolean unselect_rest);
gboolean (* unselect_range) (GtkSelectionModel *model,
guint position,
guint n_items);
gboolean (* select_all) (GtkSelectionModel *model);
gboolean (* unselect_all) (GtkSelectionModel *model);
gboolean (* set_selection) (GtkSelectionModel *model,
GtkBitset *selected,
GtkBitset *mask);
};
GDK_AVAILABLE_IN_ALL
gboolean gtk_selection_model_is_selected (GtkSelectionModel *model,
guint position);
GDK_AVAILABLE_IN_ALL
GtkBitset * gtk_selection_model_get_selection (GtkSelectionModel *model);
GDK_AVAILABLE_IN_ALL
GtkBitset * gtk_selection_model_get_selection_in_range
(GtkSelectionModel *model,
guint position,
guint n_items);
GDK_AVAILABLE_IN_ALL
gboolean gtk_selection_model_select_item (GtkSelectionModel *model,
guint position,
gboolean unselect_rest);
GDK_AVAILABLE_IN_ALL
gboolean gtk_selection_model_unselect_item (GtkSelectionModel *model,
guint position);
GDK_AVAILABLE_IN_ALL
gboolean gtk_selection_model_select_range (GtkSelectionModel *model,
guint position,
guint n_items,
gboolean unselect_rest);
GDK_AVAILABLE_IN_ALL
gboolean gtk_selection_model_unselect_range (GtkSelectionModel *model,
guint position,
guint n_items);
GDK_AVAILABLE_IN_ALL
gboolean gtk_selection_model_select_all (GtkSelectionModel *model);
GDK_AVAILABLE_IN_ALL
gboolean gtk_selection_model_unselect_all (GtkSelectionModel *model);
GDK_AVAILABLE_IN_ALL
gboolean gtk_selection_model_set_selection (GtkSelectionModel *model,
GtkBitset *selected,
GtkBitset *mask);
/* for implementations only */
GDK_AVAILABLE_IN_ALL
void gtk_selection_model_selection_changed (GtkSelectionModel *model,
guint position,
guint n_items);
G_END_DECLS
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