1 /** @file
2 * @brief GC-managed XML node implementation
3 */
4 /* Copyright 2004-2005 MenTaLguY <mental@rydia.net>
5 *
6 * This program is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU General Public License
8 * as published by the Free Software Foundation; either version 2
9 * of the License, or (at your option) any later version.
10 *
11 * See the file COPYING for details.
12 */
14 #ifndef SEEN_INKSCAPE_XML_SIMPLE_NODE_H
15 #define SEEN_INKSCAPE_XML_SIMPLE_NODE_H
17 #include <glib.h> // g_assert()
19 #include "xml/node.h"
20 #include "xml/attribute-record.h"
21 #include "xml/composite-node-observer.h"
22 #include "util/list-container.h"
24 namespace Inkscape {
26 namespace XML {
28 /**
29 * @brief Default implementation of the XML node stored in memory.
30 *
31 * @see Inkscape::XML::Node
32 */
33 class SimpleNode
34 : virtual public Node, public Inkscape::GC::Managed<>
35 {
36 public:
37 gchar const *name() const;
38 int code() const { return _name; }
39 void setCodeUnsafe(int code) {
40 _name = code;
41 }
43 Document *document() { return _document; }
44 Document const *document() const {
45 return const_cast<SimpleNode *>(this)->document();
46 }
48 Node *duplicate(Document* doc) const { return _duplicate(doc); }
50 Node *root();
51 Node const *root() const {
52 return const_cast<SimpleNode *>(this)->root();
53 }
55 Node *parent() { return _parent; }
56 Node const *parent() const { return _parent; }
58 Node *next() { return _next; }
59 Node const *next() const { return _next; }
61 Node *firstChild() { return _first_child; }
62 Node const *firstChild() const { return _first_child; }
63 Node *lastChild() { return _last_child; }
64 Node const *lastChild() const { return _last_child; }
66 unsigned childCount() const { return _child_count; }
67 Node *nthChild(unsigned index);
68 Node const *nthChild(unsigned index) const {
69 return const_cast<SimpleNode *>(this)->nthChild(index);
70 }
72 void addChild(Node *child, Node *ref);
73 void appendChild(Node *child) {
74 SimpleNode::addChild(child, _last_child);
75 }
76 void removeChild(Node *child);
77 void changeOrder(Node *child, Node *ref);
79 unsigned position() const;
80 void setPosition(int pos);
82 gchar const *attribute(gchar const *key) const;
83 void setAttribute(gchar const *key, gchar const *value, bool is_interactive=false);
84 bool matchAttributeName(gchar const *partial_name) const;
86 gchar const *content() const;
87 void setContent(gchar const *value);
89 void mergeFrom(Node const *src, gchar const *key);
91 Inkscape::Util::List<AttributeRecord const> attributeList() const {
92 return _attributes;
93 }
95 void synthesizeEvents(NodeEventVector const *vector, void *data);
96 void synthesizeEvents(NodeObserver &observer);
98 void addListener(NodeEventVector const *vector, void *data) {
99 g_assert(vector != NULL);
100 _observers.addListener(*vector, data);
101 }
102 void addObserver(NodeObserver &observer) {
103 _observers.add(observer);
104 }
105 void removeListenerByData(void *data) {
106 _observers.removeListenerByData(data);
107 }
108 void removeObserver(NodeObserver &observer) {
109 _observers.remove(observer);
110 }
112 void addSubtreeObserver(NodeObserver &observer) {
113 _subtree_observers.add(observer);
114 }
115 void removeSubtreeObserver(NodeObserver &observer) {
116 _subtree_observers.remove(observer);
117 }
119 protected:
120 SimpleNode(int code, Document *document);
121 SimpleNode(SimpleNode const &repr, Document *document);
123 virtual SimpleNode *_duplicate(Document *doc) const=0;
125 private:
126 void operator=(Node const &); // no assign
128 void _setParent(SimpleNode *parent);
129 unsigned _childPosition(SimpleNode const &child) const;
131 SimpleNode *_parent;
132 SimpleNode *_next;
133 Document *_document;
134 mutable unsigned _cached_position;
136 int _name;
138 Inkscape::Util::MutableList<AttributeRecord> _attributes;
140 Inkscape::Util::ptr_shared<char> _content;
142 unsigned _child_count;
143 mutable bool _cached_positions_valid;
144 SimpleNode *_first_child;
145 SimpleNode *_last_child;
147 CompositeNodeObserver _observers;
148 CompositeNodeObserver _subtree_observers;
149 };
151 }
153 }
155 #endif
156 /*
157 Local Variables:
158 mode:c++
159 c-file-style:"stroustrup"
160 c-file-offsets:((innamespace . 0)(inline-open . 0)(case-label . +))
161 indent-tabs-mode:nil
162 fill-column:99
163 End:
164 */
165 // vim: filetype=cpp:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:encoding=utf-8:textwidth=99 :