105 lines
3.9 KiB
C
105 lines
3.9 KiB
C
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/*
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* Copyright 2008, Haiku, Inc. All Rights Reserved.
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* Distributed under the terms of the MIT License.
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*
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* Authors:
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* Stephen Deken, stephen.deken@gmail.com
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*/
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#ifndef _AFFINETRANSFORM_H
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#define _AFFINETRANSFORM_H
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#include <InterfaceDefs.h>
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#include <agg_trans_affine.h>
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class BPoint;
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namespace BPrivate {
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class BAffineTransform {
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public:
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BAffineTransform();
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BAffineTransform(const BAffineTransform& copyFrom);
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virtual ~BAffineTransform();
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virtual BAffineTransform& operator=(const BAffineTransform& copyFrom);
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virtual bool operator==(
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const BAffineTransform& other) const;
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virtual bool operator!=(
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const BAffineTransform& other) const;
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// Callbacks
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virtual void TransformationChanged() const;
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// Application
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BPoint Apply(const BPoint& point) const;
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void Apply(BPoint* points, uint32 count) const;
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// Rotation
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void Rotate(float angle);
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void Rotate(const BPoint& center, float angle);
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BAffineTransform& RotateBySelf(float angle);
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BAffineTransform& RotateBySelf(const BPoint& center, float angle);
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BAffineTransform RotateByCopy(float angle) const;
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BAffineTransform RotateByCopy(const BPoint& center, float angle) const;
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// Translation
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void Translate(float deltaX, float deltaY);
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void Translate(const BPoint& delta);
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BAffineTransform& TranslateBySelf(float deltaX, float deltaY);
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BAffineTransform& TranslateBySelf(const BPoint& delta);
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BAffineTransform TranslateByCopy(float deltaX, float deltaY) const;
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BAffineTransform TranslateByCopy(const BPoint& delta) const;
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// Scaling
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void Scale(float scale);
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void Scale(const BPoint& center, float scale);
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void Scale(float scaleX, float scaleY);
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void Scale(const BPoint& center, float scaleX, float scaleY);
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void Scale(const BPoint& scale);
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void Scale(const BPoint& center, const BPoint& scale);
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BAffineTransform& ScaleBySelf(float scale);
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BAffineTransform& ScaleBySelf(const BPoint& center, float scale);
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BAffineTransform& ScaleBySelf(float scaleX, float scaleY);
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BAffineTransform& ScaleBySelf(const BPoint& center, float scaleX, float scaleY);
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BAffineTransform& ScaleBySelf(const BPoint& scale);
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BAffineTransform& ScaleBySelf(const BPoint& center, const BPoint& scale);
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BAffineTransform ScaleByCopy(float scale) const;
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BAffineTransform ScaleByCopy(const BPoint& center, float scale) const;
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BAffineTransform ScaleByCopy(float scaleX, float scaleY) const;
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BAffineTransform ScaleByCopy(const BPoint& center, float scaleX, float scaleY) const;
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BAffineTransform ScaleByCopy(const BPoint& scale) const;
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BAffineTransform ScaleByCopy(const BPoint& center, const BPoint& scale) const;
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// Shearing
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void Shear(float shearX, float shearY);
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void Shear(const BPoint& center, float shearX, float shearY);
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void Shear(const BPoint& shear);
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void Shear(const BPoint& center, const BPoint& shear);
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BAffineTransform& ShearBySelf(float shearX, float shearY);
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BAffineTransform& ShearBySelf(const BPoint& center, float shearX, float shearY);
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BAffineTransform& ShearBySelf(const BPoint& shear);
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BAffineTransform& ShearBySelf(const BPoint& center, const BPoint& shear);
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BAffineTransform ShearByCopy(float shearX, float shearY) const;
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BAffineTransform ShearByCopy(const BPoint& center, float shearX, float shearY) const;
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BAffineTransform ShearByCopy(const BPoint& shear) const;
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BAffineTransform ShearByCopy(const BPoint& center, const BPoint& shear) const;
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private:
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void _Rotate(float angle);
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void _Scale(float scaleX, float scaleY);
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void _Translate(float deltaX, float deltaY);
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void _Shear(float shearX, float shearY);
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void _TransformPoint(BPoint& point) const;
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agg::trans_affine fTransformMatrix;
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};
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} // namespace BPrivate
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using namespace BPrivate;
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#endif // _AFFINETRANSFORM_H
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