/*
 * ***** 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_STYLE_MODULE_H__
#define __FREESTYLE_STYLE_MODULE_H__

/** \file blender/freestyle/intern/stroke/StyleModule.h
 *  \ingroup freestyle
 *  \brief Class representing a style module
 *  \author Stephane Grabli
 *  \author Emmanuel Turquin
 *  \date 01/07/2003
 */

#include <iostream>
#include <string>

#include "Operators.h"
#include "StrokeLayer.h"
#include "StrokeShader.h"

#include "../system/Interpreter.h"
#include "../system/StringUtils.h"

#ifdef WITH_CXX_GUARDEDALLOC
#include "MEM_guardedalloc.h"
#endif

using namespace std;

namespace Freestyle {

class StyleModule
{
public:
	StyleModule(const string& file_name, Interpreter *inter) : _file_name(file_name)
	{
		_always_refresh = false;
		_causal = false;
		_drawable = true;
		_modified = true;
		_displayed = true;
		_inter = inter;
	}

	virtual ~StyleModule() {}

	StrokeLayer *execute()
	{
		if (!_inter) {
			cerr << "Error: no interpreter was found to execute the script" << endl;
			return NULL;
		}

		if (!_drawable) {
			cerr << "Error: not drawable" << endl;
			return NULL;
		}

		Operators::reset();

		if (interpret()) {
			cerr << "Error: interpretation failed" << endl;
			Operators::reset();
			return NULL;
		}

		Operators::StrokesContainer *strokes_set = Operators::getStrokesSet();
		if (strokes_set->empty()) {
			cerr << "Error: strokes set empty" << endl;
			Operators::reset();
			return NULL;
		}

		StrokeLayer *sl = new StrokeLayer;
		for (Operators::StrokesContainer::iterator it = strokes_set->begin(); it != strokes_set->end(); ++it)
			sl->AddStroke(*it);

		Operators::reset();
		return sl;
	}

protected:
	virtual int interpret()
	{
		return _inter->interpretFile(_file_name);
	}

public:
	// accessors
	const string getFileName() const
	{
		return _file_name;
	}

	bool getAlwaysRefresh() const
	{
		return _always_refresh;
	}

	bool getCausal() const
	{
		return _causal;
	}

	bool getDrawable() const
	{
		return _drawable;
	}

	bool getModified() const
	{
		return _modified;
	}

	bool getDisplayed() const
	{
		return _displayed;
	}

	// modifiers
	void setFileName(const string& file_name)
	{
		_file_name = file_name;
	}

	void setAlwaysRefresh(bool b = true)
	{
		_always_refresh = b;
	}

	void setCausal(bool b = true)
	{
		_causal = b;
	}

	void setDrawable(bool b = true)
	{
		_drawable = b;
	}

	void setModified(bool b = true)
	{
		if (_always_refresh)
			return;
		_modified = b;
	}

	void setDisplayed(bool b = true)
	{
		_displayed = b;
	}

private:
	string _file_name;
	bool _always_refresh;
	bool _causal;
	bool _drawable;
	bool _modified;
	bool _displayed;

protected:
	Interpreter *_inter;

#ifdef WITH_CXX_GUARDEDALLOC
	MEM_CXX_CLASS_ALLOC_FUNCS("Freestyle:StyleModule")
#endif
};

} /* namespace Freestyle */

#endif // __FREESTYLE_STYLE_MODULE_H__
