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31 #ifndef InterpolatedTransformOperation_h
32 #define InterpolatedTransformOperation_h
34 #include "platform/transforms/TransformOperation.h"
35 #include "platform/transforms/TransformOperations.h"
39 // This class is an implementation detail for deferred interpolations.
40 class PLATFORM_EXPORT InterpolatedTransformOperation : public TransformOperation {
42 static PassRefPtr<InterpolatedTransformOperation> create(const TransformOperations& from, const TransformOperations& to, double progress)
44 return adoptRef(new InterpolatedTransformOperation(from, to, progress));
47 virtual bool canBlendWith(const TransformOperation& other) const
49 return isSameType(other);
53 virtual bool isIdentity() const OVERRIDE { return false; }
55 virtual OperationType type() const OVERRIDE { return Interpolated; }
57 virtual bool operator==(const TransformOperation&) const OVERRIDE;
58 virtual void apply(TransformationMatrix&, const FloatSize& borderBoxSize) const OVERRIDE;
60 virtual PassRefPtr<TransformOperation> blend(const TransformOperation* from, double progress, bool blendToIdentity = false) OVERRIDE;
62 virtual bool dependsOnBoxSize() const OVERRIDE
64 return from.dependsOnBoxSize() || to.dependsOnBoxSize();
67 InterpolatedTransformOperation(const TransformOperations& from, const TransformOperations& to, double progress)
73 const TransformOperations from;
74 const TransformOperations to;
80 #endif // InterpolatedTransformOperation_h