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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 ScaleTransformOperation_h | |
26 #define ScaleTransformOperation_h | |
27 | |
28 #include "core/platform/graphics/transforms/TransformOperation.h" | |
29 | |
30 namespace WebCore { | |
31 | |
32 class ScaleTransformOperation : public TransformOperation { | |
33 public: | |
34 static PassRefPtr<ScaleTransformOperation> create(double sx, double sy, Oper
ationType type) | |
35 { | |
36 return adoptRef(new ScaleTransformOperation(sx, sy, 1, type)); | |
37 } | |
38 | |
39 static PassRefPtr<ScaleTransformOperation> create(double sx, double sy, doub
le 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.getOpe
rationType() == 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 ScaleTransformOpera
tion*>(&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 FloatSize&) 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 == ScaleX || type == ScaleY || type == ScaleZ || type == Sca
le || type == Scale3D); | |
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 | |
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