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 "core/platform/graphics/transforms/TransformOperation.h" 29 #include "core/platform/graphics/transforms/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 TransformationMatrix matrix() const { return TransformationMatrix(m_a, m_b, m_c, m_d, m_e, m_f); } 46 47 private: 48 virtual bool isIdentity() const { return m_a == 1 && m_b == 0 && m_c == 0 && m_d == 1 && m_e == 0 && m_f == 0; } 49 50 virtual OperationType getOperationType() const { return Matrix; } 51 virtual bool isSameType(const TransformOperation& o) const { return o.getOperationType() == Matrix; } 52 53 virtual bool operator==(const TransformOperation& o) const 54 { 55 if (!isSameType(o)) 56 return false; 57 58 const MatrixTransformOperation* m = static_cast<const MatrixTransformOperation*>(&o); 59 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; 60 } 61 62 virtual bool apply(TransformationMatrix& transform, const FloatSize&) const 63 { 64 TransformationMatrix matrix(m_a, m_b, m_c, m_d, m_e, m_f); 65 transform.multiply(matrix); 66 return false; 67 } 68 69 virtual PassRefPtr<TransformOperation> blend(const TransformOperation* from, double progress, bool blendToIdentity = false); 70 71 MatrixTransformOperation(double a, double b, double c, double d, double e, double f) 72 : m_a(a) 73 , m_b(b) 74 , m_c(c) 75 , m_d(d) 76 , m_e(e) 77 , m_f(f) 78 { 79 } 80 81 MatrixTransformOperation(const TransformationMatrix& t) 82 : m_a(t.a()) 83 , m_b(t.b()) 84 , m_c(t.c()) 85 , m_d(t.d()) 86 , m_e(t.e()) 87 , m_f(t.f()) 88 { 89 } 90 91 double m_a; 92 double m_b; 93 double m_c; 94 double m_d; 95 double m_e; 96 double m_f; 97 }; 98 99 } // namespace WebCore 100 101 #endif // MatrixTransformOperation_h 102
