forked from AuroraMiddleware/gtk
68 lines
2.3 KiB
C
68 lines
2.3 KiB
C
/* gtkaccessiblerange.h: Accessible range interface
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*
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* Copyright © 2022 Red Hat Inc.
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*
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* SPDX-License-Identifier: LGPL-2.1-or-later
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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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#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 <glib-object.h>
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#include <gtk/gtkaccessible.h>
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G_BEGIN_DECLS
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#define GTK_TYPE_ACCESSIBLE_RANGE (gtk_accessible_range_get_type())
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GDK_AVAILABLE_IN_ALL
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G_DECLARE_INTERFACE (GtkAccessibleRange, gtk_accessible_range, GTK, ACCESSIBLE_RANGE, GtkAccessible)
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struct _GtkAccessibleRangeInterface
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{
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GTypeInterface g_iface;
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/**
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* GtkAccessibleRangeInterface::get_minimum_increment:
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* @self: a `GtkAccessibleRange`
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*
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* Returns the minimum increment for this `GtkAccessibleRange`.
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* The default implementation returns 0.0, which indicates that a minimum
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* increment does not make sense for this implementation.
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* @returns: the minimum increment
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*/
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double (* get_minimum_increment) (GtkAccessibleRange *self);
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/**
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* GtkAccessibleRangeInterface::set_current_value:
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* @self: a `GtkAccessibleRange`
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* @value: the value to set
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*
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* Sets the current value of @self to @value.
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* This operation should behave similarly as if the user performed the action.
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* @returns: %true if the operation was performed, %false otherwise
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*/
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gboolean (* set_current_value) (GtkAccessibleRange *self, double value);
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};
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GDK_AVAILABLE_IN_ALL
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double gtk_accessible_range_get_minimum_increment (GtkAccessibleRange *self);
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GDK_AVAILABLE_IN_ALL
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gboolean gtk_accessible_range_set_current_value (GtkAccessibleRange *self, double value);
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G_END_DECLS |