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