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 ScaleTransformOperation_h 26 #define ScaleTransformOperation_h 27 28 #include "TransformOperation.h" 29 30 namespace WebCore { 31 32 class ScaleTransformOperation : public TransformOperation { 33 public: 34 static PassRefPtr<ScaleTransformOperation> create(double sx, double sy, OperationType type) 35 { 36 return adoptRef(new ScaleTransformOperation(sx, sy, 1, type)); 37 } 38 39 static PassRefPtr<ScaleTransformOperation> create(double sx, double sy, double sz, OperationType type) 40 { 41 return adoptRef(new ScaleTransformOperation(sx, sy, sz, type)); 42 } 43 44 double x() const { return m_x; } 45 double y() const { return m_y; } 46 double z() const { return m_z; } 47 48 private: 49 virtual bool isIdentity() const { return m_x == 1 && m_y == 1 && m_z == 1; } 50 51 virtual OperationType getOperationType() const { return m_type; } 52 virtual bool isSameType(const TransformOperation& o) const { return o.getOperationType() == m_type; } 53 54 virtual bool operator==(const TransformOperation& o) const 55 { 56 if (!isSameType(o)) 57 return false; 58 const ScaleTransformOperation* s = static_cast<const ScaleTransformOperation*>(&o); 59 return m_x == s->m_x && m_y == s->m_y && m_z == s->m_z; 60 } 61 62 virtual bool apply(TransformationMatrix& transform, const IntSize&) const 63 { 64 transform.scale3d(m_x, m_y, m_z); 65 return false; 66 } 67 68 virtual PassRefPtr<TransformOperation> blend(const TransformOperation* from, double progress, bool blendToIdentity = false); 69 70 ScaleTransformOperation(double sx, double sy, double sz, OperationType type) 71 : m_x(sx) 72 , m_y(sy) 73 , m_z(sz) 74 , m_type(type) 75 { 76 ASSERT(type == SCALE_X || type == SCALE_Y || type == SCALE_Z || type == SCALE || type == SCALE_3D); 77 } 78 79 double m_x; 80 double m_y; 81 double m_z; 82 OperationType m_type; 83 }; 84 85 } // namespace WebCore 86 87 #endif // ScaleTransformOperation_h 88
