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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 Library 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
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the Free
* Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#ifndef __GTK_RULER_H__
#define __GTK_RULER_H__
#include <gdk/gdk.h>
#include <gtk/gtkwidget.h>
#ifdef __cplusplus
extern "C" {
#endif /* __cplusplus */
#define GTK_RULER(obj) GTK_CHECK_CAST (obj, gtk_ruler_get_type (), GtkRuler)
#define GTK_RULER_CLASS(klass) GTK_CHECK_CLASS_CAST (klass, gtk_ruler_get_type (), GtkRulerClass)
#define GTK_IS_RULER(obj) GTK_CHECK_TYPE (obj, gtk_ruler_get_type ())
typedef struct _GtkRuler GtkRuler;
typedef struct _GtkRulerClass GtkRulerClass;
typedef struct _GtkRulerMetric GtkRulerMetric;
struct _GtkRuler
{
GtkWidget widget;
GdkPixmap *backing_store;
GdkGC *non_gr_exp_gc;
GtkRulerMetric *metric;
gint xsrc, ysrc;
gint slider_size;
gfloat lower;
gfloat upper;
gfloat position;
gfloat max_size;
};
struct _GtkRulerClass
{
GtkWidgetClass parent_class;
void (* draw_ticks) (GtkRuler *ruler);
void (* draw_pos) (GtkRuler *ruler);
};
struct _GtkRulerMetric
{
gchar *metric_name;
gchar *abbrev;
gfloat pixels_per_unit;
gfloat ruler_scale[10];
gint subdivide[5]; /* five possible modes of subdivision */
};
guint gtk_ruler_get_type (void);
void gtk_ruler_set_metric (GtkRuler *ruler,
GtkMetricType metric);
void gtk_ruler_set_range (GtkRuler *ruler,
gfloat lower,
gfloat upper,
gfloat position,
gfloat max_size);
void gtk_ruler_draw_ticks (GtkRuler *ruler);
void gtk_ruler_draw_pos (GtkRuler *ruler);
#ifdef __cplusplus
}
#endif /* __cplusplus */
#endif /* __GTK_RULER_H__ */
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