Learning_GTK4_tree/gtk/gtkscale.h

137 lines
5.3 KiB
C

/* GTK - The GIMP Toolkit
* Copyright (C) 1995-1997 Peter Mattis, Spencer Kimball and Josh MacDonald
*
* 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 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/>.
*/
/*
* Modified by the GTK+ Team and others 1997-2000. See the AUTHORS
* file for a list of people on the GTK+ Team. See the ChangeLog
* files for a list of changes. These files are distributed with
* GTK+ at ftp://ftp.gtk.org/pub/gtk/.
*/
#pragma once
#if !defined (__GTK_H_INSIDE__) && !defined (GTK_COMPILATION)
#error "Only <gtk/gtk.h> can be included directly."
#endif
#include <gtk/gtkrange.h>
G_BEGIN_DECLS
#define GTK_TYPE_SCALE (gtk_scale_get_type ())
#define GTK_SCALE(obj) (G_TYPE_CHECK_INSTANCE_CAST ((obj), GTK_TYPE_SCALE, GtkScale))
#define GTK_SCALE_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass), GTK_TYPE_SCALE, GtkScaleClass))
#define GTK_IS_SCALE(obj) (G_TYPE_CHECK_INSTANCE_TYPE ((obj), GTK_TYPE_SCALE))
#define GTK_IS_SCALE_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), GTK_TYPE_SCALE))
#define GTK_SCALE_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), GTK_TYPE_SCALE, GtkScaleClass))
typedef struct _GtkScale GtkScale;
typedef struct _GtkScaleClass GtkScaleClass;
struct _GtkScale
{
GtkRange parent_instance;
};
struct _GtkScaleClass
{
GtkRangeClass parent_class;
void (* get_layout_offsets) (GtkScale *scale,
int *x,
int *y);
/*< private >*/
gpointer padding[8];
};
/**
* GtkScaleFormatValueFunc:
* @scale: The `GtkScale`
* @value: The numeric value to format
* @user_data: (closure): user data
*
* Returns: (not nullable): A newly allocated string describing a textual representation
* of the given numerical value.
*/
typedef char * (*GtkScaleFormatValueFunc) (GtkScale *scale,
double value,
gpointer user_data);
GDK_AVAILABLE_IN_ALL
GType gtk_scale_get_type (void) G_GNUC_CONST;
GDK_AVAILABLE_IN_ALL
GtkWidget * gtk_scale_new (GtkOrientation orientation,
GtkAdjustment *adjustment);
GDK_AVAILABLE_IN_ALL
GtkWidget * gtk_scale_new_with_range (GtkOrientation orientation,
double min,
double max,
double step);
GDK_AVAILABLE_IN_ALL
void gtk_scale_set_digits (GtkScale *scale,
int digits);
GDK_AVAILABLE_IN_ALL
int gtk_scale_get_digits (GtkScale *scale);
GDK_AVAILABLE_IN_ALL
void gtk_scale_set_draw_value (GtkScale *scale,
gboolean draw_value);
GDK_AVAILABLE_IN_ALL
gboolean gtk_scale_get_draw_value (GtkScale *scale);
GDK_AVAILABLE_IN_ALL
void gtk_scale_set_has_origin (GtkScale *scale,
gboolean has_origin);
GDK_AVAILABLE_IN_ALL
gboolean gtk_scale_get_has_origin (GtkScale *scale);
GDK_AVAILABLE_IN_ALL
void gtk_scale_set_value_pos (GtkScale *scale,
GtkPositionType pos);
GDK_AVAILABLE_IN_ALL
GtkPositionType gtk_scale_get_value_pos (GtkScale *scale);
GDK_AVAILABLE_IN_ALL
PangoLayout * gtk_scale_get_layout (GtkScale *scale);
GDK_AVAILABLE_IN_ALL
void gtk_scale_get_layout_offsets (GtkScale *scale,
int *x,
int *y);
GDK_AVAILABLE_IN_ALL
void gtk_scale_add_mark (GtkScale *scale,
double value,
GtkPositionType position,
const char *markup);
GDK_AVAILABLE_IN_ALL
void gtk_scale_clear_marks (GtkScale *scale);
GDK_AVAILABLE_IN_ALL
void gtk_scale_set_format_value_func (GtkScale *scale,
GtkScaleFormatValueFunc func,
gpointer user_data,
GDestroyNotify destroy_notify);
G_DEFINE_AUTOPTR_CLEANUP_FUNC(GtkScale, g_object_unref)
G_END_DECLS