TextPlugin.hpp

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#ifndef _TUTTLE_PLUGIN_TEXT_PLUGIN_HPP_
#define _TUTTLE_PLUGIN_TEXT_PLUGIN_HPP_

#include <tuttle/plugin/context/GeneratorPlugin.hpp>
#include <tuttle/plugin/ImageEffectGilPlugin.hpp>

#include "TextDefinitions.hpp"

namespace tuttle {
namespace plugin {
namespace text {

struct TextProcessParams
{
        std::string    _text;
        bool           _isExpression;

        std::string    _fontPath;
        int            _font;

        int            _fontX;
        int            _fontY;
        OfxRGBAColourD _fontColor;
        OfxRGBAColourD _backgroundColor;
        boost::gil::point2<double> _position;
        double         _letterSpacing;
        EParamVAlign   _vAlign;
        EParamHAlign   _hAlign;
        bool           _verticalFlip;
        bool           _italic;
        bool           _bold;
};

/**
 * @brief Text plugin
 */
class TextPlugin : public GeneratorPlugin
{
public:
        TextPlugin( OfxImageEffectHandle handle );

public:
        TextProcessParams getProcessParams( const OfxPointD& renderScale = OFX::kNoRenderScale ) const;
        void getClipPreferences( OFX::ClipPreferencesSetter& clipPreferences );
        
        void render( const OFX::RenderArguments& args );

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

        template< class View, template <typename> class Functor >
        void render_if( const OFX::RenderArguments& args, boost::mpl::false_ );
        template< class View, template <typename> class Functor >
        void render_if( const OFX::RenderArguments& args, boost::mpl::true_ );

public:
        OFX::StringParam*   _paramText; ///< the text to rasterize in the image
        OFX::BooleanParam*  _paramIsExpression;

        OFX::StringParam*   _paramFontPath;
#ifndef __WINDOWS__
        OFX::ChoiceParam*   _paramFont;
#endif
        OFX::IntParam*      _paramSize;
        OFX::DoubleParam*   _paramRatio;
        OFX::RGBAParam*     _paramColor;
        OFX::RGBAParam*     _paramBackgroundColor;
        OFX::Double2DParam* _paramPosition;
        OFX::DoubleParam*   _paramLetterSpacing;
        OFX::ChoiceParam*   _paramVAlign;
        OFX::ChoiceParam*   _paramHAlign;
        OFX::BooleanParam*  _paramVerticalFlip;
        OFX::BooleanParam*  _paramItalic;
        OFX::BooleanParam*  _paramBold;

        OFX::ChoiceParam*   _paramMerge;
};

}
}
}

#endif