1 /* 2 * Copyright (C) 2000 Lars Knoll (knoll (at) kde.org) 3 * (C) 2000 Antti Koivisto (koivisto (at) kde.org) 4 * (C) 2000 Dirk Mueller (mueller (at) kde.org) 5 * Copyright (C) 2003, 2005, 2006, 2007, 2008 Apple Inc. All rights reserved. 6 * Copyright (C) 2006 Graham Dennis (graham.dennis (at) 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 "TransformationMatrix.h" 29 #include "IntSize.h" 30 #include <wtf/PassRefPtr.h> 31 #include <wtf/RefCounted.h> 32 33 namespace WebCore { 34 35 // CSS Transforms (may become part of CSS3) 36 37 class TransformOperation : public RefCounted<TransformOperation> { 38 public: 39 enum OperationType { 40 SCALE_X, SCALE_Y, SCALE, 41 TRANSLATE_X, TRANSLATE_Y, TRANSLATE, 42 ROTATE, 43 ROTATE_Z = ROTATE, 44 SKEW_X, SKEW_Y, SKEW, 45 MATRIX, 46 SCALE_Z, SCALE_3D, 47 TRANSLATE_Z, TRANSLATE_3D, 48 ROTATE_X, ROTATE_Y, ROTATE_3D, 49 MATRIX_3D, 50 PERSPECTIVE, 51 IDENTITY, NONE 52 }; 53 54 virtual ~TransformOperation() { } 55 56 virtual bool operator==(const TransformOperation&) const = 0; 57 bool operator!=(const TransformOperation& o) const { return !(*this == o); } 58 59 virtual bool isIdentity() const = 0; 60 61 // Return true if the borderBoxSize was used in the computation, false otherwise. 62 virtual bool apply(TransformationMatrix&, const IntSize& borderBoxSize) const = 0; 63 64 virtual PassRefPtr<TransformOperation> blend(const TransformOperation* from, double progress, bool blendToIdentity = false) = 0; 65 66 virtual OperationType getOperationType() const = 0; 67 virtual bool isSameType(const TransformOperation&) const { return false; } 68 69 bool is3DOperation() const 70 { 71 OperationType opType = getOperationType(); 72 return opType == SCALE_Z || 73 opType == SCALE_3D || 74 opType == TRANSLATE_Z || 75 opType == TRANSLATE_3D || 76 opType == ROTATE_X || 77 opType == ROTATE_Y || 78 opType == ROTATE_3D || 79 opType == MATRIX_3D || 80 opType == PERSPECTIVE; 81 } 82 }; 83 84 } // namespace WebCore 85 86 #endif // TransformOperation_h 87
