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| 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 MatrixTransformOperation_h | |
| 26 #define MatrixTransformOperation_h | |
| 27 | |
| 28 #include "core/platform/graphics/transforms/TransformOperation.h" | |
| 29 #include "platform/transforms/TransformationMatrix.h" | |
| 30 | |
| 31 namespace WebCore { | |
| 32 | |
| 33 class MatrixTransformOperation : public TransformOperation { | |
| 34 public: | |
| 35 static PassRefPtr<MatrixTransformOperation> create(double a, double b, doubl
e 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 TransformationMatri
x& 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.getOpe
rationType() == 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 MatrixTransformOpe
ration*>(&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, d
ouble 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 | |
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