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45c9e7aff4
Prototyping the interface to be used for sections in listview, so people can review and play with it.
73 lines
2.8 KiB
C
73 lines
2.8 KiB
C
/*
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* Copyright © 2022 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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#pragma once
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#if !defined (__GTK_H_INSIDE__) && !defined (GTK_COMPILATION)
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#error "Only <gtk/gtk.h> can be included directly."
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#endif
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#include <gtk/gtktypes.h>
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G_BEGIN_DECLS
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#define GTK_TYPE_SECTION_MODEL (gtk_section_model_get_type ())
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GDK_AVAILABLE_IN_4_12
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G_DECLARE_INTERFACE (GtkSectionModel, gtk_section_model, GTK, SECTION_MODEL, GListModel)
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/**
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* GtkSectionModelInterface:
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* @get_section: Return the section that covers the given position. If
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* the position is outside the number of items, returns a single range from
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* n_items to G_MAXUINT
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*
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* The list of virtual functions for the `GtkSectionModel` interface.
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* No function must be implemented, but unless `GtkSectionModel::get_section()`
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* is implemented, the whole model will just be a single section.
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*
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* Since: 4.12
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*/
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struct _GtkSectionModelInterface
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{
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/*< private >*/
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GTypeInterface g_iface;
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/*< public >*/
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void (* get_section) (GtkSectionModel *self,
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guint position,
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guint *out_start,
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guint *out_end);
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};
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GDK_AVAILABLE_IN_4_12
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void gtk_section_model_get_section (GtkSectionModel *self,
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guint position,
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guint *out_start,
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guint *out_end);
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/* for implementations only */
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GDK_AVAILABLE_IN_4_12
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void gtk_section_model_sections_changed (GtkSectionModel *self,
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guint position,
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guint n_items);
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G_END_DECLS
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