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webkit / WebKit / 1497a7e340e30b0e3c98acb4915039739e4ede65 / . / WebCore / rendering / CounterNode.h
blob: 53c15a852096806d426167c264cd69564b246efc [file] [log] [blame]
bdakin5d6edd42006-10-02 23:15:31 +0000[diff] [blame]1/*
2 * This file is part of the HTML rendering engine for KDE.
3 *
4 * Copyright (C) 2005 Allan Sandfeld Jensen (kde@carewolf.com)
5 * Copyright (C) 2006 Apple Computer, Inc.
6 *
7 * This library is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU Library General Public
9 * License as published by the Free Software Foundation; either
10 * version 2 of the License, or (at your option) any later version.
11 *
12 * This library is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * Library General Public License for more details.
16 *
17 * You should have received a copy of the GNU Library General Public License
18 * along with this library; see the file COPYING.LIB. If not, write to
19 * the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
20 * Boston, MA 02111-1307, USA.
21 *
22*/
weinig1497a7e2006-10-26 20:23:55 +0000[diff] [blame^]23#ifndef CounterNode_h
24#define CounterNode_h
bdakin5d6edd42006-10-02 23:15:31 +0000[diff] [blame]25
26#include "RenderObject.h"
27
28namespace WebCore {
29
30class CounterResetNode;
31
32// This file implements a counter-tree that is used for finding all parents in counters() lookup,
33// and for propagating count-changes when nodes are added or removed.
34// Please note that only counter-reset and root can be parents here, and that render-tree parents
35// are just counter-tree siblings
36
37class CounterNode {
38public:
39 CounterNode(RenderObject*);
weinig1497a7e2006-10-26 20:23:55 +0000[diff] [blame^]40 virtual ~CounterNode() { }
bdakin5d6edd42006-10-02 23:15:31 +0000[diff] [blame]41
42 CounterResetNode* parent() const { return m_parent; }
43 CounterNode* previousSibling() const { return m_previous; }
44 virtual CounterNode* nextSibling() const { return m_next; }
45 virtual CounterNode* firstChild() const { return 0; }
46 virtual CounterNode* lastChild() const { return 0; }
47 virtual void insertAfter(CounterNode* newChild, CounterNode* refChild);
weinig1497a7e2006-10-26 20:23:55 +0000[diff] [blame^]48 virtual void removeChild(CounterNode*);
bdakin5d6edd42006-10-02 23:15:31 +0000[diff] [blame]49 void remove();
50
51 int value() const { return m_value; }
52 void setValue(int v) { m_value = v; }
53 int count() const { return m_count; }
54 void setCount(int c) { m_count = c; }
55 void setHasSeparator() { m_hasSeparator = true; }
56
weinig1497a7e2006-10-26 20:23:55 +0000[diff] [blame^]57 virtual bool isReset() const { return false; }
bdakin5d6edd42006-10-02 23:15:31 +0000[diff] [blame]58 virtual CounterNode* recountAndGetNext(bool setDirty = true);
59 virtual void recountTree(bool setDirty = true);
60 virtual void setSelfDirty();
61 virtual void setParentDirty();
62
63 bool hasSeparator() const { return m_hasSeparator; }
64 bool willNeedLayout() const { return m_willNeedLayout; }
65 void setUsesSeparator();
66 void setWillNeedLayout() { m_willNeedLayout = true; }
67 bool isRoot() const { return m_renderer && m_renderer->isRoot(); }
68
69 void setRenderer(RenderObject* o) { m_renderer = o; }
70 RenderObject* renderer() const { return m_renderer; }
71
72 friend class CounterResetNode;
73protected:
74 bool m_hasSeparator;
75 bool m_willNeedLayout;
76 int m_value;
77 int m_count;
78 CounterResetNode* m_parent;
79 CounterNode* m_previous;
80 CounterNode* m_next;
81 RenderObject* m_renderer;
82};
83
84} // namespace WebCore
85
86#endif // CounterNode_h