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 TranslateTransformOperation_h 26#define TranslateTransformOperation_h 27 28#include "Length.h" 29#include "LengthFunctions.h" 30#include "TransformOperation.h" 31 32namespace WebCore { 33 34class TranslateTransformOperation : public TransformOperation { 35public: 36 static PassRefPtr<TranslateTransformOperation> create(const Length& tx, const Length& ty, OperationType type) 37 { 38 return adoptRef(new TranslateTransformOperation(tx, ty, Length(0, Fixed), type)); 39 } 40 41 static PassRefPtr<TranslateTransformOperation> create(const Length& tx, const Length& ty, const Length& tz, OperationType type) 42 { 43 return adoptRef(new TranslateTransformOperation(tx, ty, tz, type)); 44 } 45 46 double x(const FloatSize& borderBoxSize) const { return floatValueForLength(m_x, borderBoxSize.width()); } 47 double y(const FloatSize& borderBoxSize) const { return floatValueForLength(m_y, borderBoxSize.height()); } 48 double z(const FloatSize&) const { return floatValueForLength(m_z, 1); } 49 50 Length x() const { return m_x; } 51 Length y() const { return m_y; } 52 Length z() const { return m_z; } 53 54private: 55 virtual bool isIdentity() const { return !floatValueForLength(m_x, 1) && !floatValueForLength(m_y, 1) && !floatValueForLength(m_z, 1); } 56 57 virtual OperationType getOperationType() const { return m_type; } 58 virtual bool isSameType(const TransformOperation& o) const { return o.getOperationType() == m_type; } 59 60 virtual bool operator==(const TransformOperation& o) const 61 { 62 if (!isSameType(o)) 63 return false; 64 const TranslateTransformOperation* t = static_cast<const TranslateTransformOperation*>(&o); 65 return m_x == t->m_x && m_y == t->m_y && m_z == t->m_z; 66 } 67 68 virtual bool apply(TransformationMatrix& transform, const FloatSize& borderBoxSize) const 69 { 70 transform.translate3d(x(borderBoxSize), y(borderBoxSize), z(borderBoxSize)); 71 return m_x.type() == Percent || m_y.type() == Percent; 72 } 73 74 virtual PassRefPtr<TransformOperation> blend(const TransformOperation* from, double progress, bool blendToIdentity = false); 75 76 TranslateTransformOperation(const Length& tx, const Length& ty, const Length& tz, OperationType type) 77 : m_x(tx) 78 , m_y(ty) 79 , m_z(tz) 80 , m_type(type) 81 { 82 ASSERT(type == TRANSLATE_X || type == TRANSLATE_Y || type == TRANSLATE_Z || type == TRANSLATE || type == TRANSLATE_3D); 83 } 84 85 Length m_x; 86 Length m_y; 87 Length m_z; 88 OperationType m_type; 89}; 90 91} // namespace WebCore 92 93#endif // TranslateTransformOperation_h 94