/* * Copyright (C) 2009 Apple 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: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. 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. * * THIS SOFTWARE IS PROVIDED BY APPLE INC. ``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 APPLE COMPUTER, INC. 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 PerspectiveTransformOperation_h #define PerspectiveTransformOperation_h #include "platform/transforms/TransformOperation.h" namespace WebCore { class PLATFORM_EXPORT PerspectiveTransformOperation : public TransformOperation { public: static PassRefPtr<PerspectiveTransformOperation> create(double p) { return adoptRef(new PerspectiveTransformOperation(p)); } double perspective() const { return m_p; } private: virtual bool isIdentity() const OVERRIDE { return !m_p; } virtual OperationType type() const OVERRIDE { return Perspective; } virtual bool operator==(const TransformOperation& o) const OVERRIDE { if (!isSameType(o)) return false; const PerspectiveTransformOperation* p = static_cast<const PerspectiveTransformOperation*>(&o); return m_p == p->m_p; } virtual void apply(TransformationMatrix& transform, const FloatSize&) const OVERRIDE { transform.applyPerspective(m_p); } virtual PassRefPtr<TransformOperation> blend(const TransformOperation* from, double progress, bool blendToIdentity = false) OVERRIDE; PerspectiveTransformOperation(double p) : m_p(p) { } double m_p; }; } // namespace WebCore #endif // PerspectiveTransformOperation_h