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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 TransformOperations_h
#define TransformOperations_h
#include "platform/geometry/LayoutSize.h"
#include "platform/transforms/TransformOperation.h"
#include "wtf/RefPtr.h"
#include "wtf/Vector.h"
namespace WebCore {
class FloatBox;
class PLATFORM_EXPORT TransformOperations {
WTF_MAKE_FAST_ALLOCATED;
public:
explicit TransformOperations(bool makeIdentity = false);
bool operator==(const TransformOperations& o) const;
bool operator!=(const TransformOperations& o) const
{
return !(*this == o);
}
void apply(const FloatSize& sz, TransformationMatrix& t) const
{
for (unsigned i = 0; i < m_operations.size(); ++i)
m_operations[i]->apply(t, sz);
}
// Return true if any of the operation types are 3D operation types (even if the
// values describe affine transforms)
bool has3DOperation() const
{
for (unsigned i = 0; i < m_operations.size(); ++i)
if (m_operations[i]->is3DOperation())
return true;
return false;
}
bool dependsOnBoxSize() const
{
for (unsigned i = 0; i < m_operations.size(); ++i) {
if (m_operations[i]->dependsOnBoxSize())
return true;
}
return false;
}
bool operationsMatch(const TransformOperations&) const;
void clear()
{
m_operations.clear();
}
Vector<RefPtr<TransformOperation> >& operations() { return m_operations; }
const Vector<RefPtr<TransformOperation> >& operations() const { return m_operations; }
size_t size() const { return m_operations.size(); }
const TransformOperation* at(size_t index) const { return index < m_operations.size() ? m_operations.at(index).get() : 0; }
bool blendedBoundsForBox(const FloatBox&, const TransformOperations& from, const double& minProgress, const double& maxProgress, FloatBox* bounds) const;
TransformOperations blendByMatchingOperations(const TransformOperations& from, const double& progress) const;
TransformOperations blendByUsingMatrixInterpolation(const TransformOperations& from, double progress) const;
TransformOperations blend(const TransformOperations& from, double progress) const;
TransformOperations add(const TransformOperations& addend) const;
private:
Vector<RefPtr<TransformOperation> > m_operations;
};
} // namespace WebCore
#endif // TransformOperations_h
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