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| 1 /* | |
| 2 * Copyright (C) 2009 Apple Inc. All rights reserved. | |
| 3 * | |
| 4 * Redistribution and use in source and binary forms, with or without | |
| 5 * modification, are permitted provided that the following conditions | |
| 6 * are met: | |
| 7 * 1. Redistributions of source code must retain the above copyright | |
| 8 * notice, this list of conditions and the following disclaimer. | |
| 9 * 2. Redistributions in binary form must reproduce the above copyright | |
| 10 * notice, this list of conditions and the following disclaimer in the | |
| 11 * documentation and/or other materials provided with the distribution. | |
| 12 * | |
| 13 * THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY | |
| 14 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | |
| 15 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR | |
| 16 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE COMPUTER, INC. OR | |
| 17 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, | |
| 18 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, | |
| 19 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR | |
| 20 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY | |
| 21 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT | |
| 22 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE | |
| 23 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | |
| 24 */ | |
| 25 | |
| 26 #ifndef PerspectiveTransformOperation_h | |
| 27 #define PerspectiveTransformOperation_h | |
| 28 | |
| 29 #include "core/platform/graphics/transforms/TransformOperation.h" | |
| 30 #include "platform/Length.h" | |
| 31 #include "platform/LengthFunctions.h" | |
| 32 | |
| 33 namespace WebCore { | |
| 34 | |
| 35 class PerspectiveTransformOperation : public TransformOperation { | |
| 36 public: | |
| 37 static PassRefPtr<PerspectiveTransformOperation> create(const Length& p) | |
| 38 { | |
| 39 return adoptRef(new PerspectiveTransformOperation(p)); | |
| 40 } | |
| 41 | |
| 42 Length perspective() const { return m_p; } | |
| 43 | |
| 44 private: | |
| 45 virtual bool isIdentity() const { return !floatValueForLength(m_p, 1); } | |
| 46 virtual OperationType getOperationType() const { return Perspective; } | |
| 47 virtual bool isSameType(const TransformOperation& o) const { return o.getOpe
rationType() == Perspective; } | |
| 48 | |
| 49 virtual bool operator==(const TransformOperation& o) const | |
| 50 { | |
| 51 if (!isSameType(o)) | |
| 52 return false; | |
| 53 const PerspectiveTransformOperation* p = static_cast<const PerspectiveTr
ansformOperation*>(&o); | |
| 54 return m_p == p->m_p; | |
| 55 } | |
| 56 | |
| 57 virtual bool apply(TransformationMatrix& transform, const FloatSize&) const | |
| 58 { | |
| 59 transform.applyPerspective(floatValueForLength(m_p, 1)); | |
| 60 return false; | |
| 61 } | |
| 62 | |
| 63 virtual PassRefPtr<TransformOperation> blend(const TransformOperation* from,
double progress, bool blendToIdentity = false); | |
| 64 | |
| 65 PerspectiveTransformOperation(const Length& p) | |
| 66 : m_p(p) | |
| 67 { | |
| 68 ASSERT(p.isFixed()); | |
| 69 } | |
| 70 | |
| 71 Length m_p; | |
| 72 }; | |
| 73 | |
| 74 } // namespace WebCore | |
| 75 | |
| 76 #endif // PerspectiveTransformOperation_h | |
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Chromium Code Reviews
Issue 45553002:
Move remaining classes in graphics/transforms to platform/ (Closed)
Base URL: https://chromium.googlesource.com/chromium/blink.git@master