WebCore/KeyframeList.h

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