KeyframeList.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 KeyframeList_h
26#define KeyframeList_h
27
28#include <wtf/Vector.h>
29#include <wtf/HashSet.h>
30#include <wtf/RefPtr.h>
31#include <wtf/text/AtomicString.h>
32
33namespace WebCore {
34
35class RenderObject;
36class RenderStyle;
37
38class KeyframeValue {
39public:
40    KeyframeValue(float key, PassRefPtr<RenderStyle> style)
41        : m_key(key)
42        , m_style(style)
43    {
44    }
45
46    void addProperty(int prop) { m_properties.add(prop); }
47    bool containsProperty(int prop) const { return m_properties.contains(prop); }
48    const HashSet<int>& properties() const { return m_properties; }
49
50    float key() const { return m_key; }
51    void setKey(float key) { m_key = key; }
52
53    const RenderStyle* style() const { return m_style.get(); }
54    void setStyle(PassRefPtr<RenderStyle> style) { m_style = style; }
55
56private:
57    float m_key;
58    HashSet<int> m_properties; // The properties specified in this keyframe.
59    RefPtr<RenderStyle> m_style;
60};
61
62class KeyframeList {
63public:
64    KeyframeList(RenderObject* renderer, const AtomicString& animationName)
65        : m_animationName(animationName)
66        , m_renderer(renderer)
67    {
68        insert(KeyframeValue(0, 0));
69        insert(KeyframeValue(1, 0));
70    }
71    ~KeyframeList();
72
73    bool operator==(const KeyframeList& o) const;
74    bool operator!=(const KeyframeList& o) const { return !(*this == o); }
75
76    const AtomicString& animationName() const { return m_animationName; }
77
78    void insert(const KeyframeValue& keyframe);
79
80    void addProperty(int prop) { m_properties.add(prop); }
81    bool containsProperty(int prop) const { return m_properties.contains(prop); }
82    HashSet<int>::const_iterator beginProperties() const { return m_properties.begin(); }
83    HashSet<int>::const_iterator endProperties() const { return m_properties.end(); }
84
85    void clear();
86    bool isEmpty() const { return m_keyframes.isEmpty(); }
87    size_t size() const { return m_keyframes.size(); }
88    const KeyframeValue& operator[](size_t index) const { return m_keyframes[index]; }
89
90private:
91    AtomicString m_animationName;
92    Vector<KeyframeValue> m_keyframes; // kept sorted by key
93    HashSet<int> m_properties; // the properties being animated
94    RenderObject* m_renderer;
95};
96
97} // namespace WebCore
98
99#endif // KeyframeList_h
100