1 /* 2 * Copyright (C) 2000 Lars Knoll (knoll@kde.org) 3 * (C) 2000 Antti Koivisto (koivisto@kde.org) 4 * (C) 2000 Dirk Mueller (mueller@kde.org) 5 * Copyright (C) 2003, 2005, 2006, 2007, 2008 Apple Inc. All rights reserved. 6 * Copyright (C) 2006 Graham Dennis (graham.dennis@gmail.com) 7 * 8 * This library is free software; you can redistribute it and/or 9 * modify it under the terms of the GNU Library General Public 10 * License as published by the Free Software Foundation; either 11 * version 2 of the License, or (at your option) any later version. 12 * 13 * This library is distributed in the hope that it will be useful, 14 * but WITHOUT ANY WARRANTY; without even the implied warranty of 15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 16 * Library General Public License for more details. 17 * 18 * You should have received a copy of the GNU Library General Public License 19 * along with this library; see the file COPYING.LIB. If not, write to 20 * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, 21 * Boston, MA 02110-1301, USA. 22 * 23 */ 24 25 #ifndef TransformOperation_h 26 #define TransformOperation_h 27 28 #include "platform/geometry/FloatSize.h" 29 #include "platform/transforms/TransformationMatrix.h" 30 #include "wtf/PassRefPtr.h" 31 #include "wtf/RefCounted.h" 32 33 namespace blink { 34 35 // CSS Transforms (may become part of CSS3) 36 37 class PLATFORM_EXPORT TransformOperation : public RefCounted<TransformOperation> { 38 public: 39 enum OperationType { 40 ScaleX, ScaleY, Scale, 41 TranslateX, TranslateY, Translate, 42 Rotate, 43 RotateZ = Rotate, 44 SkewX, SkewY, Skew, 45 Matrix, 46 ScaleZ, Scale3D, 47 TranslateZ, Translate3D, 48 RotateX, RotateY, Rotate3D, 49 Matrix3D, 50 Perspective, 51 Interpolated, 52 Identity, None 53 }; 54 ~TransformOperation()55 virtual ~TransformOperation() { } 56 57 virtual bool operator==(const TransformOperation&) const = 0; 58 bool operator!=(const TransformOperation& o) const { return !(*this == o); } 59 60 virtual void apply(TransformationMatrix&, const FloatSize& borderBoxSize) const = 0; 61 62 virtual PassRefPtr<TransformOperation> blend(const TransformOperation* from, double progress, bool blendToIdentity = false) = 0; 63 64 virtual OperationType type() const = 0; isSameType(const TransformOperation & other)65 bool isSameType(const TransformOperation& other) const { return other.type() == type(); } 66 virtual bool canBlendWith(const TransformOperation& other) const = 0; 67 is3DOperation()68 bool is3DOperation() const 69 { 70 OperationType opType = type(); 71 return opType == ScaleZ 72 || opType == Scale3D 73 || opType == TranslateZ 74 || opType == Translate3D 75 || opType == RotateX 76 || opType == RotateY 77 || opType == Rotate3D 78 || opType == Matrix3D 79 || opType == Perspective 80 || opType == Interpolated; 81 } 82 dependsOnBoxSize()83 virtual bool dependsOnBoxSize() const { return false; } 84 }; 85 86 } // namespace blink 87 88 #endif // TransformOperation_h 89