/* This file is part of Machina.
 * Copyright 2007-2011 David Robillard <http://drobilla.net>
 *
 * Machina is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * Machina 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 General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with Machina.  If not, see <http://www.gnu.org/licenses/>.
 */

#ifndef MACHINA_CANVAS_HPP_HPP
#define MACHINA_CANVAS_HPP_HPP

#include <string>

#include "ganv/Canvas.hpp"
#include "machina/types.hpp"

using namespace Ganv;

namespace machina {

namespace client { class ClientObject; }

namespace gui {

class MachinaGUI;
class NodeView;

class MachinaCanvas
	: public Canvas
{
public:
	MachinaCanvas(MachinaGUI* app, int width, int height);

	void on_new_object(SPtr<machina::client::ClientObject> object);
	void on_erase_object(SPtr<machina::client::ClientObject> object);

	MachinaGUI* app() { return _app; }

protected:
	bool on_event(GdkEvent* event);

	bool node_clicked(NodeView* node, GdkEventButton* ev);

private:
	void action_create_node(double x, double y);
	void action_connect(NodeView* tail, NodeView* head);
	void action_disconnect(NodeView* tail, NodeView* head);

	MachinaGUI* _app;
	NodeView*   _last_clicked;
};

}  // namespace machina
}  // namespace gui

#endif // MACHINA_CANVAS_HPP_HPP