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 MatrixTransformOperation_h 26 #define MatrixTransformOperation_h 27 28 #include "TransformOperation.h" 29 #include "TransformationMatrix.h" 30 31 namespace WebCore { 32 33 class MatrixTransformOperation : public TransformOperation { 34 public: 35 static PassRefPtr<MatrixTransformOperation> create(double a, double b, double c, double d, double e, double f) 36 { 37 return adoptRef(new MatrixTransformOperation(a, b, c, d, e, f)); 38 } 39 40 static PassRefPtr<MatrixTransformOperation> create(const TransformationMatrix& t) 41 { 42 return adoptRef(new MatrixTransformOperation(t)); 43 } 44 45 private: 46 virtual bool isIdentity() const { return m_a == 1 && m_b == 0 && m_c == 0 && m_d == 1 && m_e == 0 && m_f == 0; } 47 48 virtual OperationType getOperationType() const { return MATRIX; } 49 virtual bool isSameType(const TransformOperation& o) const { return o.getOperationType() == MATRIX; } 50 51 virtual bool operator==(const TransformOperation& o) const 52 { 53 if (!isSameType(o)) 54 return false; 55 56 const MatrixTransformOperation* m = static_cast<const MatrixTransformOperation*>(&o); 57 return m_a == m->m_a && m_b == m->m_b && m_c == m->m_c && m_d == m->m_d && m_e == m->m_e && m_f == m->m_f; 58 } 59 60 virtual bool apply(TransformationMatrix& transform, const IntSize&) const 61 { 62 TransformationMatrix matrix(m_a, m_b, m_c, m_d, m_e, m_f); 63 transform.multLeft(TransformationMatrix(matrix)); 64 return false; 65 } 66 67 virtual PassRefPtr<TransformOperation> blend(const TransformOperation* from, double progress, bool blendToIdentity = false); 68 69 MatrixTransformOperation(double a, double b, double c, double d, double e, double f) 70 : m_a(a) 71 , m_b(b) 72 , m_c(c) 73 , m_d(d) 74 , m_e(e) 75 , m_f(f) 76 { 77 } 78 79 MatrixTransformOperation(const TransformationMatrix& t) 80 : m_a(t.a()) 81 , m_b(t.b()) 82 , m_c(t.c()) 83 , m_d(t.d()) 84 , m_e(t.e()) 85 , m_f(t.f()) 86 { 87 } 88 89 double m_a; 90 double m_b; 91 double m_c; 92 double m_d; 93 double m_e; 94 double m_f; 95 }; 96 97 } // namespace WebCore 98 99 #endif // MatrixTransformOperation_h 100
