#ifndef DEFORMATIONSELECTOR_H

#define DEFORMATIONSELECTOR_H

#include "ext/StrokeDeformationImpl.h"

namespace ToonzExt

{

/**

   * @brief This class is a Singleton that selects the correct 

   *  StrokeDeformationImpl that will use StrokeDeformation.

   * 

   * The selection use aspect of stroke (type of corner, smoothness,

   * ...) and priority of StrokeDeformationImpl itself. 

   * Priority can manage simply some strange case (corner that 

   * seems to be straight corner and smooth corner).

   *

   * @note Selection can be overriden by user.

   * @note Private use only.

   */

class DeformationSelector

{

	typedef std::pair<strokedeformationimpl *,="" int=""> Deformation;</strokedeformationimpl>

	vector<deformation> ref_;</deformation>

	DeformationSelector();

	DeformationSelector(const DeformationSelector &);

	DeformationSelector operator=(const DeformationSelector &);

public:

	~DeformationSelector();

	static DeformationSelector *

	instance();

	void

	add(StrokeDeformationImpl *deformation,

		int priority);

	StrokeDeformationImpl *

	getDeformation(const ContextStatus *status);

};

}

/**

 * @brief This macro manage the registration in internal catalog

 * of deformations.

 */

#define REGISTER(myClass, priority)                                          \

	static bool add_in_array()                                               \

	{                                                                        \

		DeformationSelector::instance()->add(myClass::instance(), priority); \

		return true;                                                         \

	}                                                                        \

	static bool done = add_in_array();

#endif /* DEFORMATIONSELECTOR_H */

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//  End Of File

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