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Copyright (c) 2013-2014 Chukong Technologies Inc.

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****************************************************************************/

#ifndef __COCOA_CGAFFINETRANSFORM_H__
#define __COCOA_CGAFFINETRANSFORM_H__

#include "base/CCGeometry.h"
#include "base/CCPlatformMacros.h"
#include "math/CCMath.h"

NS_CC_BEGIN

USING_NS_CC_MATH;

struct AffineTransform {
    float a, b, c, d;
    float tx, ty;

    static const AffineTransform IDENTITY;
};

CC_DLL AffineTransform __CCAffineTransformMake(float a, float b, float c, float d, float tx, float ty);
#define AffineTransformMake __CCAffineTransformMake

CC_DLL Vector2 __CCPointApplyAffineTransform(const Vector2& point, const AffineTransform& t);
#define PointApplyAffineTransform __CCPointApplyAffineTransform

CC_DLL Size __CCSizeApplyAffineTransform(const Size& size, const AffineTransform& t);
#define SizeApplyAffineTransform __CCSizeApplyAffineTransform

CC_DLL AffineTransform AffineTransformMakeIdentity();
CC_DLL Rect RectApplyAffineTransform(const Rect& rect, const AffineTransform& anAffineTransform);

CC_DLL Rect RectApplyTransform(const Rect& rect, const Matrix& transform);
CC_DLL Vector2 PointApplyTransform(const Vector2& point, const Matrix& transform);

CC_DLL AffineTransform AffineTransformTranslate(const AffineTransform& t, float tx, float ty);
CC_DLL AffineTransform AffineTransformRotate(const AffineTransform& aTransform, float anAngle);
CC_DLL AffineTransform AffineTransformScale(const AffineTransform& t, float sx, float sy);
CC_DLL AffineTransform AffineTransformConcat(const AffineTransform& t1, const AffineTransform& t2);
CC_DLL bool AffineTransformEqualToTransform(const AffineTransform& t1, const AffineTransform& t2);
CC_DLL AffineTransform AffineTransformInvert(const AffineTransform& t);

Matrix TransformConcat(const Matrix& t1, const Matrix& t2);

extern CC_DLL const AffineTransform AffineTransformIdentity;

NS_CC_END

#endif // __COCOA_CGAFFINETRANSFORM_H__