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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 RotateTransformOperation_h
26 #define RotateTransformOperation_h
27 
28 #include "TransformOperation.h"
29 
30 namespace WebCore {
31 
32 class RotateTransformOperation : public TransformOperation {
33 public:
create(double angle,OperationType type)34     static PassRefPtr<RotateTransformOperation> create(double angle, OperationType type)
35     {
36         return adoptRef(new RotateTransformOperation(0, 0, 1, angle, type));
37     }
38 
create(double x,double y,double z,double angle,OperationType type)39     static PassRefPtr<RotateTransformOperation> create(double x, double y, double z, double angle, OperationType type)
40     {
41         return adoptRef(new RotateTransformOperation(x, y, z, angle, type));
42     }
43 
x()44     double x() const { return m_x; }
y()45     double y() const { return m_y; }
z()46     double z() const { return m_z; }
angle()47     double angle() const { return m_angle; }
48 
49 private:
isIdentity()50     virtual bool isIdentity() const { return m_angle == 0; }
51 
getOperationType()52     virtual OperationType getOperationType() const { return m_type; }
isSameType(const TransformOperation & o)53     virtual bool isSameType(const TransformOperation& o) const { return o.getOperationType() == m_type; }
54 
55     virtual bool operator==(const TransformOperation& o) const
56     {
57         if (!isSameType(o))
58             return false;
59         const RotateTransformOperation* r = static_cast<const RotateTransformOperation*>(&o);
60         return m_x == r->m_x && m_y == r->m_y && m_z == r->m_z && m_angle == r->m_angle;
61     }
62 
apply(TransformationMatrix & transform,const IntSize &)63     virtual bool apply(TransformationMatrix& transform, const IntSize& /*borderBoxSize*/) const
64     {
65         transform.rotate3d(m_x, m_y, m_z, m_angle);
66         return false;
67     }
68 
69     virtual PassRefPtr<TransformOperation> blend(const TransformOperation* from, double progress, bool blendToIdentity = false);
70 
RotateTransformOperation(double x,double y,double z,double angle,OperationType type)71     RotateTransformOperation(double x, double y, double z, double angle, OperationType type)
72         : m_x(x)
73         , m_y(y)
74         , m_z(z)
75         , m_angle(angle)
76         , m_type(type)
77     {
78         ASSERT(type == ROTATE_X || type == ROTATE_Y || type == ROTATE_Z || type == ROTATE_3D);
79     }
80 
81     double m_x;
82     double m_y;
83     double m_z;
84     double m_angle;
85     OperationType m_type;
86 };
87 
88 } // namespace WebCore
89 
90 #endif // RotateTransformOperation_h
91