/***********************************************************************************
 *                                                                                 *
 * Voreen - The Volume Rendering Engine                                            *
 *                                                                                 *
 * Copyright (C) 2005-2012 University of Muenster, Germany.                        *
 * Visualization and Computer Graphics Group <http://viscg.uni-muenster.de>        *
 * For a list of authors please refer to the file "CREDITS.txt".                   *
 *                                                                                 *
 * This file is part of the Voreen software package. Voreen is free software:      *
 * you can redistribute it and/or modify it under the terms of the GNU General     *
 * Public License version 2 as published by the Free Software Foundation.          *
 *                                                                                 *
 * Voreen 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 in the file   *
 * "LICENSE.txt" along with this file. If not, see <http://www.gnu.org/licenses/>. *
 *                                                                                 *
 * For non-commercial academic use see the license exception specified in the file *
 * "LICENSE-academic.txt". To get information about commercial licensing please    *
 * contact the authors.                                                            *
 *                                                                                 *
 ***********************************************************************************/

#ifndef VRN_PLOTFUNCTIONDISCRET_H
#define VRN_PLOTFUNCTIONDISCRET_H

#include "../ports/plotport.h"

#include "voreen/core/processors/processor.h"
#include "voreen/core/properties/floatproperty.h"
#include "voreen/core/properties/buttonproperty.h"
#include "voreen/core/properties/optionproperty.h"

namespace voreen {

class PlotData;
class PlotFunction;

class PlotFunctionDiscret : public Processor {
public:
    PlotFunctionDiscret();

    virtual Processor* create() const;
    virtual std::string getCategory() const  { return "Plotting"; }
    virtual std::string getClassName() const { return "PlotFunctionDiscret"; }
    virtual CodeState getCodeState() const   { return CODE_STATE_TESTING; }
    //virtual bool usesExpensiveComputation() const { return true; }
    virtual bool isEndProcessor() const;
    virtual bool isReady() const;

    /// @see Serializer::serialize
    virtual void serialize(XmlSerializer& s) const;

    /// @see Deserializer::deserialize
    virtual void deserialize(XmlDeserializer& s);

    /// Provides the link to the object for the widget.
    const PlotData* getPlotData() const;


    /// default destructor
    virtual ~PlotFunctionDiscret();
protected:
    virtual void setDescriptions() {
        setDescription("interpolate the Data on the PlotPort.PlotFunction.inPort.");
    }

    virtual void process();
    virtual void initialize() throw (tgt::Exception);
    virtual void deinitialize() throw (tgt::Exception);

private:

    struct DiscretizeValues  : public Serializable {
        std::vector<std::pair<plot_t, plot_t> > interval;
        std::vector<plot_t> stepwidth;
        std::pair<int,int> columns;

        /// @see Serializer::serialize
        virtual void serialize(XmlSerializer& s) const;

        /// @see Deserializer::deserialize
        virtual void deserialize(XmlDeserializer& s);

    };

    void setOutPortData();
    void readData();
    void calculate();
    void deleteList();
    void choiceChange();
    void intervalStepChange();
    void leftIntervalChange();
    void rightIntervalChange();
    void calculateResultLength();

    PlotPort outPort_;
    PlotPort inPort_;

    /// Properties
    IntOptionProperty dimensionsList_;

    FloatProperty leftInterval_;
    FloatProperty rightInterval_;
    FloatProperty steps_;

    ButtonProperty startDiscretization_;

    FloatProperty numberofCalculations_;

    DiscretizeValues resetList_;

    const PlotFunction* pData_;
    PlotData* pDataOut_;

    static const std::string loggerCat_;

};

} // namespace voreen

#endif // VRN_PLOTFUNCTIONDISCRET_H
