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)
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.
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.
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.
25 #ifndef ScaleTransformOperation_h
26 #define ScaleTransformOperation_h
28 #include "platform/transforms/TransformOperation.h"
32 class PLATFORM_EXPORT ScaleTransformOperation : public TransformOperation {
34 static PassRefPtr<ScaleTransformOperation> create(double sx, double sy, OperationType type)
36 return adoptRef(new ScaleTransformOperation(sx, sy, 1, type));
39 static PassRefPtr<ScaleTransformOperation> create(double sx, double sy, double sz, OperationType type)
41 return adoptRef(new ScaleTransformOperation(sx, sy, sz, type));
44 double x() const { return m_x; }
45 double y() const { return m_y; }
46 double z() const { return m_z; }
48 virtual bool canBlendWith(const TransformOperation& other) const;
51 virtual bool isIdentity() const OVERRIDE { return m_x == 1 && m_y == 1 && m_z == 1; }
53 virtual OperationType type() const OVERRIDE { return m_type; }
55 virtual bool operator==(const TransformOperation& o) const OVERRIDE
59 const ScaleTransformOperation* s = static_cast<const ScaleTransformOperation*>(&o);
60 return m_x == s->m_x && m_y == s->m_y && m_z == s->m_z;
63 virtual void apply(TransformationMatrix& transform, const FloatSize&) const OVERRIDE
65 transform.scale3d(m_x, m_y, m_z);
68 virtual PassRefPtr<TransformOperation> blend(const TransformOperation* from, double progress, bool blendToIdentity = false) OVERRIDE;
70 ScaleTransformOperation(double sx, double sy, double sz, OperationType type)
76 ASSERT(type == ScaleX || type == ScaleY || type == ScaleZ || type == Scale || type == Scale3D);
85 } // namespace WebCore
87 #endif // ScaleTransformOperation_h