forked from AuroraMiddleware/gtk
5b69fd535d
Instead of just destroying all items and then recreating them (or even hide()ing and then show()ing them again (or even even repositioning them in the widget tree)), just try to reust them in the order they are. This works surprisingly well when scrolling and most/all widgets just moved.
83 lines
4.8 KiB
C
83 lines
4.8 KiB
C
/*
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* Copyright © 2018 Benjamin Otte
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library. If not, see <http://www.gnu.org/licenses/>.
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*
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* Authors: Benjamin Otte <otte@gnome.org>
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*/
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#ifndef __GTK_LIST_ITEM_MANAGER_H__
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#define __GTK_LIST_ITEM_MANAGER_H__
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#include "gtk/gtktypes.h"
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#include "gtk/gtklistitemfactoryprivate.h"
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G_BEGIN_DECLS
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#define GTK_TYPE_LIST_ITEM_MANAGER (gtk_list_item_manager_get_type ())
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#define GTK_LIST_ITEM_MANAGER(o) (G_TYPE_CHECK_INSTANCE_CAST ((o), GTK_TYPE_LIST_ITEM_MANAGER, GtkListItemManager))
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#define GTK_LIST_ITEM_MANAGER_CLASS(k) (G_TYPE_CHECK_CLASS_CAST ((k), GTK_TYPE_LIST_ITEM_MANAGER, GtkListItemManagerClass))
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#define GTK_IS_LIST_ITEM_MANAGER(o) (G_TYPE_CHECK_INSTANCE_TYPE ((o), GTK_TYPE_LIST_ITEM_MANAGER))
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#define GTK_IS_LIST_ITEM_MANAGER_CLASS(k) (G_TYPE_CHECK_CLASS_TYPE ((k), GTK_TYPE_LIST_ITEM_MANAGER))
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#define GTK_LIST_ITEM_MANAGER_GET_CLASS(o) (G_TYPE_INSTANCE_GET_CLASS ((o), GTK_TYPE_LIST_ITEM_MANAGER, GtkListItemManagerClass))
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typedef struct _GtkListItemManager GtkListItemManager;
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typedef struct _GtkListItemManagerClass GtkListItemManagerClass;
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typedef struct _GtkListItemManagerChange GtkListItemManagerChange;
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GType gtk_list_item_manager_get_type (void) G_GNUC_CONST;
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GtkListItemManager * gtk_list_item_manager_new (GtkWidget *widget);
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void gtk_list_item_manager_set_factory (GtkListItemManager *self,
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GtkListItemFactory *factory);
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GtkListItemFactory * gtk_list_item_manager_get_factory (GtkListItemManager *self);
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void gtk_list_item_manager_set_model (GtkListItemManager *self,
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GListModel *model);
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GListModel * gtk_list_item_manager_get_model (GtkListItemManager *self);
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guint gtk_list_item_manager_get_size (GtkListItemManager *self);
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GtkListItemManagerChange *
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gtk_list_item_manager_begin_change (GtkListItemManager *self);
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void gtk_list_item_manager_end_change (GtkListItemManager *self,
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GtkListItemManagerChange *change);
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gboolean gtk_list_item_manager_change_contains (GtkListItemManagerChange *change,
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GtkWidget *list_item);
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GtkWidget * gtk_list_item_manager_acquire_list_item (GtkListItemManager *self,
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guint position,
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GtkWidget *prev_sibling);
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GtkWidget * gtk_list_item_manager_try_reacquire_list_item
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(GtkListItemManager *self,
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GtkListItemManagerChange *change,
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guint position,
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GtkWidget *prev_sibling);
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void gtk_list_item_manager_update_list_item (GtkListItemManager *self,
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GtkWidget *item,
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guint position);
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void gtk_list_item_manager_move_list_item (GtkListItemManager *self,
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GtkWidget *list_item,
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guint position,
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GtkWidget *prev_sibling);
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void gtk_list_item_manager_release_list_item (GtkListItemManager *self,
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GtkListItemManagerChange *change,
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GtkWidget *widget);
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G_END_DECLS
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#endif /* __GTK_LIST_ITEM_MANAGER_H__ */
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