#ifndef VIEW_H

#define VIEW_H

#include <vector></vector>

#include <gtkmm drawingarea.h=""></gtkmm>

#include "common.h"

#include "surface.h"

#include "matrix.h"

class View: public Gtk::DrawingArea {

public:

	class Point: public Shared {

	public:

		Vector2 position;

		Real radius;

		Color color;

		bool selected;

		Point(): radius(5.0), color(1, 1, 0, 1), selected() { }

		sigc::signal<void> signal_motion;</void>

		sigc::signal<void> signal_changed;</void>

		void motion() { signal_motion(); }

		void changed() { motion(); signal_changed(); }

		virtual void draw(

			const Cairo::RefPtr<cairo::context>& context,</cairo::context>

			View &view );

	};

	class Layer: public Shared {

	public:

		virtual void draw(

			const Cairo::RefPtr<cairo::context>& context,</cairo::context>

			View &view );

	};

	typedef RefPtr<point> PointPtr;</point>

	typedef RefPtr<layer> LayerPtr;</layer>

	typedef std::vector<pointptr> PointList;</pointptr>

	typedef std::vector<layerptr> LayerList;</layerptr>

public:

	Matrix transform;

	LayerList layers;

	PointList own_points;

	PointList foreign_points;

private:

	bool dragging;

	PointPtr selected_point;

	Vector2 selected_point_offset;

public:

	View();

	virtual ~View();

protected:

	bool on_draw(const Cairo::RefPtr<cairo::context>& context) override;</cairo::context>

	bool on_motion_notify_event(GdkEventMotion *event) override;

	bool on_button_press_event(GdkEventButton *event) override;

	bool on_button_release_event(GdkEventButton *event) override;

};

#endif