#ifndef STROKEDEFORMATION_IMPL_H

#define STROKEDEFORMATION_IMPL_H

/**

 * @author  Fabrizio Morciano <fabrizio.morciano@gmail.com></fabrizio.morciano@gmail.com>

 */

#include "ext/StrokeDeformation.h"

#undef DVAPI

#undef DVVAR

#ifdef TNZEXT_EXPORTS

#define DVAPI DV_EXPORT_API

#define DVVAR DV_EXPORT_VAR

#else

#define DVAPI DV_IMPORT_API

#define DVVAR DV_IMPORT_VAR

#endif

#include "ExtUtil.h"

#if defined(WIN32) && (_MSC_VER <= 1200)

// to avoid annoying warning

#pragma warning(push)

#pragma warning(disable : 4251)

#endif

namespace ToonzExt

{

class DVAPI

	StrokeDeformationImpl

{

private:

	bool

	init(const ContextStatus *);

	bool

	computeStroke2Transform(const ContextStatus *s,

							TStroke *&stroke2transform,

							double &w,

							ToonzExt::Interval &extremes);

	ToonzExt::Potential

		*potential_;

	static TStroke *

		copyOfLastSelectedStroke_; // deep copy stroke selected previously

	int

		cursorId_;

protected:

	TStroke

		*stroke2manipulate_;

	static TStroke *&

	getLastSelectedStroke();

	static void

	setLastSelectedStroke(TStroke *);

	static int &

	getLastSelectedDegree();

	static void

	setLastSelectedDegree(int degree);

	static ToonzExt::Intervals &

	getSpiresList();

	static ToonzExt::Intervals &

	getStraightsList();

	ToonzExt::StrokeParametricDeformer

		*deformer_;

	int

		shortcutKey_;

	double

		old_w0_;

	TPointD

		old_w0_pos_;

	// ref to simplify access

	std::vector<tstroke *=""></tstroke>

		strokes_;

	StrokeDeformationImpl();

	/**

    * Is this the correct deformation?

    */

	virtual bool

	check_(const ContextStatus *) = 0;

	/**

    * Retrieve the nearest extremes to point selected.

    */

	virtual bool

	findExtremes_(const ContextStatus *,

				  Interval &) = 0;

	virtual double

	findActionLength() = 0;

public:

	virtual ~StrokeDeformationImpl();

	ToonzExt::Interval

	getExtremes();

	static const ContextStatus *&

	getImplStatus();

	const TStroke *

	getStrokeSelected() const

	{

		if (getImplStatus())

			return this->getImplStatus()->stroke2change_;

		return 0;

	}

	const TStroke *

	getCopiedStroke() const

	{

		return this->getStrokeSelected();

	}

	/**

     * Wrapper for activate.

     */

	virtual bool

	activate_impl(const ContextStatus *);

	/**

    * Modify stroke.

    */

	virtual void

	update_impl(const TPointD &delta);

	/**

    * Reduce control points and change stroke.

    */

	virtual TStroke *

	deactivate_impl();

	bool

	check(const ContextStatus *);

	/**

    * Restore last good status.

    */

	virtual void

	reset();

	void

	setPotential(Potential *);

	/**

     * Apply a designer on current deformation.

     */

	virtual void

	draw(Designer *);

	TStroke *

	getTransformedStroke();

	ToonzExt::Potential *

	getPotential();

	TPointD &

	oldW0();

	int

	getShortcutKey() const

	{

		return shortcutKey_;

	}

	int

	getCursorId() const

	{

		return cursorId_;

	}

	void

	setCursorId(int id)

	{

		cursorId_ = id;

	}

};

}

#if defined(WIN32) && (_MSC_VER <= 1200)

#pragma warning(pop)

#endif

#endif /* STROKEDEFORMATION_IMPL_H */

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

//  End Of File

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