/*
 * ***** BEGIN GPL LICENSE BLOCK *****
 *
 * This program 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 2
 * of the License, or (at your option) any later version.
 *
 * This program 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 this program; if not, write to the Free Software Foundation,
 * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
 *
 * ***** END GPL LICENSE BLOCK *****
 */

#ifndef __FREESTYLE_SCENE_PRETTY_PRINTER_H__
#define __FREESTYLE_SCENE_PRETTY_PRINTER_H__

/** \file blender/freestyle/intern/scene_graph/ScenePrettyPrinter.h
 *  \ingroup freestyle
 *  \brief Class to display textual information about a scene graph.
 *  \author Stephane Grabli
 *  \author Emmanuel Turquin
 *  \date 26/04/2003
 */

#include <fstream>
#include <iostream>
#include <string>

#include "SceneVisitor.h"

using namespace std;

namespace Freestyle {

class ScenePrettyPrinter : public SceneVisitor
{
public:
	ScenePrettyPrinter(const string filename = "SceneLog.txt") : SceneVisitor()
	{
		if (!filename.empty())
			_ofs.open(filename.c_str());
		if (!_ofs.is_open())
			cerr << "Warning, unable to open file \"" << filename << "\"" << endl;
		_space = "";
	}

	virtual ~ScenePrettyPrinter()
	{
		if (_ofs.is_open())
			_ofs.close();
	}


	//
	// visitClass methods
	//
	//////////////////////////////////////////////

	VISIT_DECL(Node);
	VISIT_DECL(NodeShape);
	VISIT_DECL(NodeGroup);
	VISIT_DECL(NodeLight);
	VISIT_DECL(NodeDrawingStyle);
	VISIT_DECL(NodeTransform);

	VISIT_DECL(LineRep);
	VISIT_DECL(OrientedLineRep);
	VISIT_DECL(TriangleRep);
	VISIT_DECL(VertexRep);
	VISIT_DECL(IndexedFaceSet);

	virtual void visitNodeShapeBefore(NodeShape&);
	virtual void visitNodeShapeAfter(NodeShape&);
	virtual void visitNodeGroupBefore(NodeGroup&);
	virtual void visitNodeGroupAfter(NodeGroup&);
	virtual void visitNodeDrawingStyleBefore(NodeDrawingStyle&);
	virtual void visitNodeDrawingStyleAfter(NodeDrawingStyle&);
	virtual void visitNodeTransformBefore(NodeTransform&);
	virtual void visitNodeTransformAfter(NodeTransform&);

protected:
	void increaseSpace()
	{
		_space += "  ";
	}

	void decreaseSpace()
	{
		_space.erase(0, 2);
	}

private:
	ofstream _ofs;
	string _space;
};

} /* namespace Freestyle */

#endif // __FREESTYLE_SCENE_PRETTY_PRINTER_H__
