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82 lines
3.3 KiB
C++
82 lines
3.3 KiB
C++
/*
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* Copyright (C) 2013 Google Inc. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are
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* met:
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*
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above
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* copyright notice, this list of conditions and the following disclaimer
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* in the documentation and/or other materials provided with the
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* distribution.
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* * Neither the name of Google Inc. nor the names of its
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* contributors may be used to endorse or promote products derived from
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* this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef SKY_ENGINE_PLATFORM_TRANSFORMS_INTERPOLATEDTRANSFORMOPERATION_H_
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#define SKY_ENGINE_PLATFORM_TRANSFORMS_INTERPOLATEDTRANSFORMOPERATION_H_
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#include "flutter/sky/engine/platform/transforms/TransformOperation.h"
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#include "flutter/sky/engine/platform/transforms/TransformOperations.h"
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namespace blink {
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// This class is an implementation detail for deferred interpolations.
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class PLATFORM_EXPORT InterpolatedTransformOperation : public TransformOperation {
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public:
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static PassRefPtr<InterpolatedTransformOperation> create(const TransformOperations& from, const TransformOperations& to, double progress)
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{
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return adoptRef(new InterpolatedTransformOperation(from, to, progress));
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}
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virtual bool canBlendWith(const TransformOperation& other) const
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{
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return isSameType(other);
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}
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private:
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virtual bool isIdentity() const override { return false; }
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virtual OperationType type() const override { return Interpolated; }
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virtual bool operator==(const TransformOperation&) const override;
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virtual void apply(TransformationMatrix&, const FloatSize& borderBoxSize) const override;
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virtual PassRefPtr<TransformOperation> blend(const TransformOperation* from, double progress, bool blendToIdentity = false) override;
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virtual bool dependsOnBoxSize() const override
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{
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return from.dependsOnBoxSize() || to.dependsOnBoxSize();
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}
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InterpolatedTransformOperation(const TransformOperations& from, const TransformOperations& to, double progress)
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: from(from)
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, to(to)
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, progress(progress)
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{ }
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const TransformOperations from;
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const TransformOperations to;
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double progress;
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};
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} // namespace blink
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#endif // SKY_ENGINE_PLATFORM_TRANSFORMS_INTERPOLATEDTRANSFORMOPERATION_H_
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