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#ifndef TSPECTRUMPARAM_H
#define TSPECTRUMPARAM_H

#include <memory>

#include "tspectrum.h"
#include "tparamset.h"

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

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

//    Forward declaration

class TParamSet;
class TSpectrumParamImp;
class TPixelParamP;

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

#ifdef _WIN32
class TSpectrumParam;
template class DVAPI TPersistDeclarationT<TSpectrumParam>;
#endif

//---------------------------------------------------------

class DVAPI TSpectrumParam : public TParam
{
	PERSIST_DECLARATION(TSpectrumParam)

	std::unique_ptr<TSpectrumParamImp> m_imp;

public:
	TSpectrumParam();
	TSpectrumParam(int keyCount, TSpectrum::ColorKey keys[]);
	TSpectrumParam(const TSpectrumParam &);
	~TSpectrumParam();

	TParam *clone() const { return new TSpectrumParam(*this); }
	void copy(TParam *src);

	void addObserver(TParamObserver *);
	void removeObserver(TParamObserver *);

	TSpectrum getValue(double frame) const;
	TSpectrum64 getValue64(double frame) const;
	void setValue(double frame, const TSpectrum &value, bool undoing = false);
	void setDefaultValue(const TSpectrum &value);

	int getKeyCount() const;

	TDoubleParamP getPosition(int index) const;
	TPixelParamP getColor(int index) const;

	void setValue(double frame, int index, double s, const TPixel32 &color, bool undoing = false);

	void insertKey(int index, double s, const TPixel32 &color);
	void addKey(double s, const TPixel32 &color);
	void removeKey(int index);

	bool isAnimatable() const { return true; }
	bool isKeyframe(double frame) const;
	void deleteKeyframe(double frame);
	void clearKeyframes();
	void assignKeyframe(
		double frame,
		const TSmartPointerT<TParam> &src, double srcFrame,
		bool changedOnly = false);

	void loadData(TIStream &is);
	void saveData(TOStream &os);

	void enableDragging(bool on);
	void enableNotification(bool on);
	bool isNotificationEnabled() const;
	void enableMatte(bool on);

	bool isMatteEnabled() const;
	std::string getValueAlias(double frame, int precision);
	bool hasKeyframes() const;
	void getKeyframes(std::set<double> &frames) const;
	int getNextKeyframe(double frame) const;
	int getPrevKeyframe(double frame) const;
	double keyframeIndexToFrame(int index) const;
};

#ifdef _WIN32
template class DVAPI TSmartPointerT<TSpectrumParam>;
template class DVAPI TDerivedSmartPointerT<TSpectrumParam, TParam>;
#endif

class DVAPI TSpectrumParamP : public TDerivedSmartPointerT<TSpectrumParam, TParam>
{
public:
	TSpectrumParamP() {}
	TSpectrumParamP(int keyCount, TSpectrum::ColorKey keys[])
		: TDerivedSmartPointerT<TSpectrumParam, TParam>(new TSpectrumParam(keyCount, keys)) {}
	TSpectrumParamP(TSpectrumParam *p) : TDerivedSmartPointerT<TSpectrumParam, TParam>(p) {}
	TSpectrumParamP(const TParamP &p) : TDerivedSmartPointerT<TSpectrumParam, TParam>(p) {}
	operator TParamP() const { return TParamP(m_pointer); }
};

//---------------------------------------------------------

DVAPI TIStream &operator>>(TIStream &in, TSpectrumParamP &p);

#endif