#ifndef TRASTERFXRENDERDATA_H
#define TRASTERFXRENDERDATA_H

// TnzCore includes
#include "tcommon.h"

#undef DVAPI
#undef DVVAR
#ifdef TFX_EXPORTS
#define DVAPI DV_EXPORT_API
#define DVVAR DV_EXPORT_VAR
#else
#define DVAPI DV_IMPORT_API
#define DVVAR DV_IMPORT_VAR
#endif

//******************************************************************************
//    TRasterFxRenderData  class
//******************************************************************************

//! Base class for custom data that can added by an fx to be processed in a
//! downstrem fx.
class DVAPI TRasterFxRenderData : public TSmartObject
{
public:
	virtual ~TRasterFxRenderData() {}

	virtual bool operator==(const TRasterFxRenderData &data) const = 0;
	virtual std::string toString() const = 0;

	//! Returns a value respresenting the type of a renderData instance. The type
	//! is used to sort renderData entries for both retrieval and processing.
	//! The floating return type specification is used to allow insertions between
	//! two close-up values, if needed.
	virtual float typeIndex() const = 0;

	//! Currently used by TColumnFx to find out whether a renderData instance
	//! will enlarge the rendering of the specified bounding box.
	virtual TRectD getBBoxEnlargement(const TRectD &bbox) { return bbox; }
};

//===================================================================

#ifdef WIN32
template class DVAPI TSmartPointerT<TRasterFxRenderData>;
#endif
typedef TSmartPointerT<TRasterFxRenderData> TRasterFxRenderDataP;

#endif // TRASTERFXRENDERDATA_H