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 "platform/geometry/FloatSize.h"
29 #include "platform/transforms/TransformationMatrix.h"
30 #include "wtf/PassRefPtr.h"
31 #include "wtf/RefCounted.h"
35 // CSS Transforms (may become part of CSS3)
37 class PLATFORM_EXPORT TransformOperation : public RefCounted<TransformOperation> {
40 ScaleX, ScaleY, Scale,
41 TranslateX, TranslateY, Translate,
47 TranslateZ, Translate3D,
48 RotateX, RotateY, Rotate3D,
55 virtual ~TransformOperation() { }
57 virtual bool operator==(const TransformOperation&) const = 0;
58 bool operator!=(const TransformOperation& o) const { return !(*this == o); }
60 virtual bool isIdentity() const = 0;
62 virtual void apply(TransformationMatrix&, const FloatSize& borderBoxSize) const = 0;
64 virtual PassRefPtr<TransformOperation> blend(const TransformOperation* from, double progress, bool blendToIdentity = false) = 0;
66 virtual OperationType type() const = 0;
67 bool isSameType(const TransformOperation& other) const { return other.type() == type(); }
68 virtual bool canBlendWith(const TransformOperation& other) const = 0;
70 bool is3DOperation() const
72 OperationType opType = type();
73 return opType == ScaleZ
75 || opType == TranslateZ
76 || opType == Translate3D
81 || opType == Perspective
82 || opType == Interpolated;
85 virtual bool dependsOnBoxSize() const { return false; }
90 #endif // TransformOperation_h