ColorGradientPlugin.hpp

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#ifndef _TUTTLE_PLUGIN_COLORGRADIENT_PLUGIN_HPP_
#define _TUTTLE_PLUGIN_COLORGRADIENT_PLUGIN_HPP_

#include <tuttle/plugin/context/GeneratorPlugin.hpp>
#include "ColorGradientDefinitions.hpp"

#include <tuttle/plugin/ImageEffectGilPlugin.hpp>

namespace tuttle {
namespace plugin {
namespace colorGradient {

template<class View>
struct ColorGradientProcessParams
{
        typedef typename View::value_type Pixel;
        typedef boost::gil::point2<double> Point2;
        Point2 _cornerA;
        Point2 _cornerB;
        std::vector<Point2> _points;
        std::vector<Pixel>  _colors;
};

/**
 * @brief ColorGradient plugin
 */
class ColorGradientPlugin : public GeneratorPlugin
{
public:
        typedef boost::gil::point2<double> Point2;

public:
        ColorGradientPlugin( OfxImageEffectHandle handle );

private:
        template<template<typename> class Functor>
        void renderFunctor( const OFX::RenderArguments& args );

public:
        void render( const OFX::RenderArguments& args );
        void changedParam( const OFX::InstanceChangedArgs& args, const std::string& paramName );
        void getClipPreferences( OFX::ClipPreferencesSetter& clipPreferences );

        template<class View>
        ColorGradientProcessParams<View> getProcessParams() const;

public:
        typedef std::vector<OFX::Double2DParam*> Double2DParamVector;
        typedef std::vector<OFX::RGBAParam*> RGBAParamVector;

        Double2DParamVector _points;
        RGBAParamVector _colors;
        OFX::ChoiceParam* _gradientType;
        OFX::IntParam* _nbPoints;
};

}
}
}

#endif