TransformOperations.h revision cad810f21b803229eb11403f9209855525a25d57 
1/*
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)
7 *
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.
12 *
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.
17 *
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.
22 *
23 */
24
25#ifndef TransformOperations_h
26#define TransformOperations_h
27
28#include "TransformOperation.h"
29#include <wtf/RefPtr.h>
30#include <wtf/Vector.h>
31
32namespace WebCore {
33
34class TransformOperations : public FastAllocBase {
35public:
36    TransformOperations(bool makeIdentity = false);
37
38    bool operator==(const TransformOperations& o) const;
39    bool operator!=(const TransformOperations& o) const
40    {
41        return !(*this == o);
42    }
43
44    void apply(const IntSize& sz, TransformationMatrix& t) const
45    {
46        for (unsigned i = 0; i < m_operations.size(); ++i)
47            m_operations[i]->apply(t, sz);
48    }
49
50    // Return true if any of the operation types are 3D operation types (even if the
51    // values describe affine transforms)
52    bool has3DOperation() const
53    {
54        for (unsigned i = 0; i < m_operations.size(); ++i)
55            if (m_operations[i]->is3DOperation())
56                return true;
57        return false;
58    }
59
60    void clear()
61    {
62        m_operations.clear();
63    }
64
65    Vector<RefPtr<TransformOperation> >& operations() { return m_operations; }
66    const Vector<RefPtr<TransformOperation> >& operations() const { return m_operations; }
67
68    size_t size() const { return m_operations.size(); }
69    const TransformOperation* at(size_t index) const { return index < m_operations.size() ? m_operations.at(index).get() : 0; }
70
71private:
72    Vector<RefPtr<TransformOperation> > m_operations;
73};
74
75} // namespace WebCore
76
77#endif // TransformOperations_h
78