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/*
* Copyright (C) 2000 Lars Knoll (knoll@kde.org)
* (C) 2000 Antti Koivisto (koivisto@kde.org)
* (C) 2000 Dirk Mueller (mueller@kde.org)
* Copyright (C) 2003, 2005, 2006, 2007, 2008 Apple Inc. All rights reserved.
* Copyright (C) 2006 Graham Dennis (graham.dennis@gmail.com)
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public License
* along with this library; see the file COPYING.LIB. If not, write to
* the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
* Boston, MA 02110-1301, USA.
*
*/
#ifndef TransformOperation_h
#define TransformOperation_h
#include "platform/geometry/FloatSize.h"
#include "platform/transforms/TransformationMatrix.h"
#include "wtf/PassRefPtr.h"
#include "wtf/RefCounted.h"
namespace WebCore {
// CSS Transforms (may become part of CSS3)
class PLATFORM_EXPORT TransformOperation : public RefCounted<TransformOperation> {
public:
enum OperationType {
ScaleX, ScaleY, Scale,
TranslateX, TranslateY, Translate,
Rotate,
RotateZ = Rotate,
SkewX, SkewY, Skew,
Matrix,
ScaleZ, Scale3D,
TranslateZ, Translate3D,
RotateX, RotateY, Rotate3D,
Matrix3D,
Perspective,
Interpolated,
Identity, None
};
virtual ~TransformOperation() { }
virtual bool operator==(const TransformOperation&) const = 0;
bool operator!=(const TransformOperation& o) const { return !(*this == o); }
virtual bool isIdentity() const = 0;
// Return true if the borderBoxSize was used in the computation, false otherwise.
virtual bool apply(TransformationMatrix&, const FloatSize& borderBoxSize) const = 0;
virtual PassRefPtr<TransformOperation> blend(const TransformOperation* from, double progress, bool blendToIdentity = false) = 0;
virtual OperationType getOperationType() const = 0;
virtual bool isSameType(const TransformOperation&) const { return false; }
bool is3DOperation() const
{
OperationType opType = getOperationType();
return opType == ScaleZ
|| opType == Scale3D
|| opType == TranslateZ
|| opType == Translate3D
|| opType == RotateX
|| opType == RotateY
|| opType == Rotate3D
|| opType == Matrix3D
|| opType == Perspective
|| opType == Interpolated;
}
};
} // namespace WebCore
#endif // TransformOperation_h