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/* 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, write to the
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
/*
* 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/.
*/
/*
* NOTE this widget is considered too specialized/little-used for
* GTK+, and will in the future be moved to some other package. If
* your application needs this widget, feel free to use it, as the
* widget does work and is useful in some applications; it's just not
* of general interest. However, we are not accepting new features for
* the widget, and it will eventually move out of the GTK+
* distribution.
*/
#ifndef __GTK_RULER_H__
#define __GTK_RULER_H__
#include <gdk/gdk.h>
#include <gtk/gtkwidget.h>
G_BEGIN_DECLS
#define GTK_TYPE_RULER (gtk_ruler_get_type ())
#define GTK_RULER(obj) (G_TYPE_CHECK_INSTANCE_CAST ((obj), GTK_TYPE_RULER, GtkRuler))
#define GTK_RULER_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass), GTK_TYPE_RULER, GtkRulerClass))
#define GTK_IS_RULER(obj) (G_TYPE_CHECK_INSTANCE_TYPE ((obj), GTK_TYPE_RULER))
#define GTK_IS_RULER_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), GTK_TYPE_RULER))
#define GTK_RULER_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), GTK_TYPE_RULER, GtkRulerClass))
typedef struct _GtkRuler GtkRuler;
typedef struct _GtkRulerClass GtkRulerClass;
typedef struct _GtkRulerMetric GtkRulerMetric;
/* All distances below are in 1/72nd's of an inch. (According to
* Adobe that's a point, but points are really 1/72.27 in.)
*/
struct _GtkRuler
{
GtkWidget widget;
GdkPixmap *backing_store;
GdkGC *non_gr_exp_gc; /* unused */
GtkRulerMetric *metric;
gint xsrc, ysrc;
gint slider_size;
/* The upper limit of the ruler (in points) */
gdouble lower;
/* The lower limit of the ruler */
gdouble upper;
/* The position of the mark on the ruler */
gdouble position;
/* The maximum size of the ruler */
gdouble max_size;
};
struct _GtkRulerClass
{
GtkWidgetClass parent_class;
void (* draw_ticks) (GtkRuler *ruler);
void (* draw_pos) (GtkRuler *ruler);
/* Padding for future expansion */
void (*_gtk_reserved1) (void);
void (*_gtk_reserved2) (void);
void (*_gtk_reserved3) (void);
void (*_gtk_reserved4) (void);
};
struct _GtkRulerMetric
{
gchar *metric_name;
gchar *abbrev;
/* This should be points_per_unit. This is the size of the unit
* in 1/72nd's of an inch and has nothing to do with screen pixels */
gdouble pixels_per_unit;
gdouble ruler_scale[10];
gint subdivide[5]; /* five possible modes of subdivision */
};
GType gtk_ruler_get_type (void) G_GNUC_CONST;
void gtk_ruler_set_metric (GtkRuler *ruler,
GtkMetricType metric);
void gtk_ruler_set_range (GtkRuler *ruler,
gdouble lower,
gdouble upper,
gdouble position,
gdouble max_size);
void gtk_ruler_draw_ticks (GtkRuler *ruler);
void gtk_ruler_draw_pos (GtkRuler *ruler);
GtkMetricType gtk_ruler_get_metric (GtkRuler *ruler);
void gtk_ruler_get_range (GtkRuler *ruler,
gdouble *lower,
gdouble *upper,
gdouble *position,
gdouble *max_size);
G_END_DECLS
#endif /* __GTK_RULER_H__ */
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