/* 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.

 */

#if defined(GTK_DISABLE_SINGLE_INCLUDES) && !defined (__GTK_H_INSIDE__) && !defined (GTK_COMPILATION)

#error "Only <gtk/gtk.h> can be included directly."

#endif

#ifndef GTK_DISABLE_DEPRECATED

#ifndef __GTK_RULER_H__

#define __GTK_RULER_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 *GSEAL (backing_store);

  GdkGC *GSEAL (non_gr_exp_gc);		/* unused */

  GtkRulerMetric *GSEAL (metric);

  gint GSEAL (xsrc);

  gint GSEAL (ysrc);

  gint GSEAL (slider_size);

  /* The upper limit of the ruler (in points) */

  gdouble GSEAL (lower);

  /* The lower limit of the ruler */

  gdouble GSEAL (upper);

  /* The position of the mark on the ruler */

  gdouble GSEAL (position);

  /* The maximum size of the ruler */

  gdouble GSEAL (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);

GtkMetricType   gtk_ruler_get_metric (GtkRuler       *ruler);

void            gtk_ruler_set_range  (GtkRuler       *ruler,

                                      gdouble         lower,

                                      gdouble         upper,

                                      gdouble         position,

                                      gdouble         max_size);

void            gtk_ruler_get_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);

G_END_DECLS

#endif /* __GTK_RULER_H__ */

#endif /* GTK_DISABLE_DEPRECATED */