#ifndef SP_GUIDE_H
#define SP_GUIDE_H

/*
 * SPGuide
 *
 * A guideline
 *
 * Copyright (C) Lauris Kaplinski 2000
 *
 */

#include "helper/helper-forward.h"
#include "sp-object.h"
#include "libnr/nr-point.h"
#include <vector>
class SPGuideAttachment;

#define SP_TYPE_GUIDE            (sp_guide_get_type ())
#define SP_GUIDE(obj)            (G_TYPE_CHECK_INSTANCE_CAST ((obj), SP_TYPE_GUIDE, SPGuide))
#define SP_GUIDE_CLASS(klass)    (G_TYPE_CHECK_CLASS_CAST ((klass), SP_TYPE_GUIDE, SPGuideClass))
#define SP_IS_GUIDE(obj)         (G_TYPE_CHECK_INSTANCE_TYPE ((obj), SP_TYPE_GUIDE))
#define SP_IS_GUIDE_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), SP_TYPE_GUIDE))

/* Represents the constraint on p that dot(g.direction, p) == g.position. */
struct _SPGuide {
	SPObject object;
	NR::Point normal;
	gdouble position;
	guint32 color;
	guint32 hicolor;
	GSList *views;
	std::vector<SPGuideAttachment> attached_items;
};

struct _SPGuideClass {
	SPObjectClass parent_class;
};

GType sp_guide_get_type (void);

void sp_guide_show (SPGuide * guide, SPCanvasGroup * group, GCallback handler);
void sp_guide_hide (SPGuide * guide, SPCanvas * canvas);
void sp_guide_sensitize (SPGuide * guide, SPCanvas * canvas, gboolean sensitive);

double sp_guide_position_from_pt(SPGuide const *guide, NR::Point const &pt);
void sp_guide_moveto(SPGuide const &guide, gdouble const position, bool const commit);
void sp_guide_remove(SPGuide *guide);

char *sp_guide_description(SPGuide const *guide);

#endif



/*
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*/
