#ifndef __SP_RULER_H__

#define __SP_RULER_H__

#include <gtk/gtk.h>

#include "sp-metric.h"

#include <iostream>

#include <glib.h>

#define SP_TYPE_RULER (sp_ruler_get_type ())

#define SP_RULER(obj) (G_TYPE_CHECK_INSTANCE_CAST ((obj), SP_TYPE_RULER, SPRuler))

#define SP_RULER_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass), SP_TYPE_RULER, SPRulerClass))

#define SP_IS_RULER(obj) (G_TYPE_CHECK_INSTANCE_TYPE ((obj), SP_TYPE_RULER))

#define SP_IS_RULER_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), SP_TYPE_RULER))

#define SP_RULER_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), SP_TYPE_RULER, SPRulerClass))

typedef struct _SPRuler SPRuler;

typedef struct _SPRulerPrivate SPRulerPrivate;

typedef struct _SPRulerClass SPRulerClass;

typedef struct _SPRulerMetric SPRulerMetric;

struct _SPRuler

{

GtkWidget widget;

/*< private >*/

SPRulerPrivate *priv;

};

struct _SPRulerClass

{

GtkWidgetClass parent_class;

void (* draw_ticks) (SPRuler *ruler,

cairo_t *cr);

void (* draw_pos) (SPRuler *ruler);

};

struct _SPRulerMetric

{

gchar const *metric_name;

gchar const *abbrev;

/* This should be points_per_unit. This is the size of the unit

gdouble pixels_per_unit;

gdouble ruler_scale[10];

gint subdivide[5]; /* five possible modes of subdivision */

};

GType sp_ruler_get_type (void) G_GNUC_CONST;

GtkWidget* sp_ruler_new (GtkOrientation orientation);

void sp_ruler_set_range (SPRuler *ruler,

gdouble lower,

gdouble upper,

gdouble position,

gdouble max_size);

void sp_ruler_get_range (SPRuler *ruler,

gdouble *lower,

gdouble *upper,

gdouble *position,

gdouble *max_size);

void sp_ruler_draw_ticks (SPRuler *ruler);

void sp_ruler_draw_pos (SPRuler *ruler);

void sp_ruler_set_metric(SPRuler *ruler, SPMetric metric);

SPMetric sp_ruler_get_metric(SPRuler *ruler);

#endif /* __SP_RULER_H__ */