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 TranslateTransformOperation_h 26 #define TranslateTransformOperation_h 27 28 #include "Length.h" 29 #include "TransformOperation.h" 30 31 namespace WebCore { 32 33 class TranslateTransformOperation : public TransformOperation { 34 public: 35 static PassRefPtr<TranslateTransformOperation> create(const Length& tx, const Length& ty, OperationType type) 36 { 37 return adoptRef(new TranslateTransformOperation(tx, ty, Length(0, Fixed), type)); 38 } 39 40 static PassRefPtr<TranslateTransformOperation> create(const Length& tx, const Length& ty, const Length& tz, OperationType type) 41 { 42 return adoptRef(new TranslateTransformOperation(tx, ty, tz, type)); 43 } 44 45 double x(const IntSize& borderBoxSize) const { return m_x.calcFloatValue(borderBoxSize.width()); } 46 double y(const IntSize& borderBoxSize) const { return m_y.calcFloatValue(borderBoxSize.height()); } 47 double z(const IntSize&) const { return m_z.calcFloatValue(1); } 48 49 Length x() const { return m_x; } 50 Length y() const { return m_y; } 51 Length z() const { return m_z; } 52 53 private: 54 virtual bool isIdentity() const { return m_x.calcFloatValue(1) == 0 && m_y.calcFloatValue(1) == 0 && m_z.calcFloatValue(1) == 0; } 55 56 virtual OperationType getOperationType() const { return m_type; } 57 virtual bool isSameType(const TransformOperation& o) const { return o.getOperationType() == m_type; } 58 59 virtual bool operator==(const TransformOperation& o) const 60 { 61 if (!isSameType(o)) 62 return false; 63 const TranslateTransformOperation* t = static_cast<const TranslateTransformOperation*>(&o); 64 return m_x == t->m_x && m_y == t->m_y && m_z == t->m_z; 65 } 66 67 virtual bool apply(TransformationMatrix& transform, const IntSize& borderBoxSize) const 68 { 69 transform.translate3d(x(borderBoxSize), y(borderBoxSize), z(borderBoxSize)); 70 return m_x.type() == Percent || m_y.type() == Percent; 71 } 72 73 virtual PassRefPtr<TransformOperation> blend(const TransformOperation* from, double progress, bool blendToIdentity = false); 74 75 TranslateTransformOperation(const Length& tx, const Length& ty, const Length& tz, OperationType type) 76 : m_x(tx) 77 , m_y(ty) 78 , m_z(tz) 79 , m_type(type) 80 { 81 ASSERT(type == TRANSLATE_X || type == TRANSLATE_Y || type == TRANSLATE_Z || type == TRANSLATE || type == TRANSLATE_3D); 82 } 83 84 Length m_x; 85 Length m_y; 86 Length m_z; 87 OperationType m_type; 88 }; 89 90 } // namespace WebCore 91 92 #endif // TranslateTransformOperation_h 93
