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 TransformOperation_h
26 #define TransformOperation_h
28 #include "AffineTransform.h"
30 #include <wtf/PassRefPtr.h>
31 #include <wtf/RefCounted.h>
35 // CSS Transforms (may become part of CSS3)
37 class TransformOperation
: public RefCounted
<TransformOperation
> {
40 SCALE_X
, SCALE_Y
, SCALE
,
41 TRANSLATE_X
, TRANSLATE_Y
, TRANSLATE
,
44 MATRIX
, IDENTITY
, NONE
47 virtual ~TransformOperation() { }
49 virtual bool operator==(const TransformOperation
&) const = 0;
50 bool operator!=(const TransformOperation
& o
) const { return !(*this == o
); }
52 virtual bool isIdentity() const = 0;
54 virtual bool apply(AffineTransform
&, const IntSize
& borderBoxSize
) const = 0;
56 virtual PassRefPtr
<TransformOperation
> blend(const TransformOperation
* from
, double progress
, bool blendToIdentity
= false) = 0;
58 virtual OperationType
getOperationType() const = 0;
59 virtual bool isSameType(const TransformOperation
& o
) const { return false; }
62 } // namespace WebCore
64 #endif // TransformOperation_h