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 "platform/Length.h" 29 #include "platform/LengthFunctions.h" 30 #include "platform/transforms/TransformOperation.h" 31 32 namespace blink { 33 34 class PLATFORM_EXPORT TranslateTransformOperation : public TransformOperation { 35 public: 36 static PassRefPtr<TranslateTransformOperation> create(const Length& tx, const Length& ty, OperationType type) 37 { 38 return adoptRef(new TranslateTransformOperation(tx, ty, 0, type)); 39 } 40 41 static PassRefPtr<TranslateTransformOperation> create(const Length& tx, const Length& ty, double tz, OperationType type) 42 { 43 return adoptRef(new TranslateTransformOperation(tx, ty, tz, type)); 44 } 45 46 virtual bool canBlendWith(const TransformOperation& other) const; 47 48 double x(const FloatSize& borderBoxSize) const { return floatValueForLength(m_x, borderBoxSize.width()); } 49 double y(const FloatSize& borderBoxSize) const { return floatValueForLength(m_y, borderBoxSize.height()); } 50 51 Length x() const { return m_x; } 52 Length y() const { return m_y; } 53 double z() const { return m_z; } 54 55 private: 56 virtual OperationType type() const OVERRIDE { return m_type; } 57 58 virtual bool operator==(const TransformOperation& o) const OVERRIDE 59 { 60 if (!isSameType(o)) 61 return false; 62 const TranslateTransformOperation* t = static_cast<const TranslateTransformOperation*>(&o); 63 return m_x == t->m_x && m_y == t->m_y && m_z == t->m_z; 64 } 65 66 virtual void apply(TransformationMatrix& transform, const FloatSize& borderBoxSize) const OVERRIDE 67 { 68 transform.translate3d(x(borderBoxSize), y(borderBoxSize), z()); 69 } 70 71 virtual PassRefPtr<TransformOperation> blend(const TransformOperation* from, double progress, bool blendToIdentity = false) OVERRIDE; 72 73 virtual bool dependsOnBoxSize() const OVERRIDE 74 { 75 return m_x.isPercent() || m_y.isPercent(); 76 } 77 78 TranslateTransformOperation(const Length& tx, const Length& ty, double tz, OperationType type) 79 : m_x(tx) 80 , m_y(ty) 81 , m_z(tz) 82 , m_type(type) 83 { 84 ASSERT(type == TranslateX || type == TranslateY || type == TranslateZ || type == Translate || type == Translate3D); 85 } 86 87 Length m_x; 88 Length m_y; 89 double m_z; 90 OperationType m_type; 91 }; 92 93 } // namespace blink 94 95 #endif // TranslateTransformOperation_h 96
