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26 #ifndef PerspectiveTransformOperation_h
27 #define PerspectiveTransformOperation_h
29 #include "platform/transforms/TransformOperation.h"
33 class PLATFORM_EXPORT PerspectiveTransformOperation : public TransformOperation {
35 static PassRefPtr<PerspectiveTransformOperation> create(double p)
37 return adoptRef(new PerspectiveTransformOperation(p));
40 double perspective() const { return m_p; }
42 virtual bool canBlendWith(const TransformOperation& other) const
44 return isSameType(other);
48 virtual bool isIdentity() const OVERRIDE { return !m_p; }
49 virtual OperationType type() const OVERRIDE { return Perspective; }
51 virtual bool operator==(const TransformOperation& o) const OVERRIDE
55 const PerspectiveTransformOperation* p = static_cast<const PerspectiveTransformOperation*>(&o);
59 virtual void apply(TransformationMatrix& transform, const FloatSize&) const OVERRIDE
61 transform.applyPerspective(m_p);
64 virtual PassRefPtr<TransformOperation> blend(const TransformOperation* from, double progress, bool blendToIdentity = false) OVERRIDE;
66 PerspectiveTransformOperation(double p)
76 #endif // PerspectiveTransformOperation_h