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1 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% | |
2 | %% Name: xmlnode.tex | |
3 | %% Purpose: wxXmlNode documentation | |
4 | %% Author: Francesco Montorsi | |
5 | %% Created: 2006-04-18 | |
6 | %% RCS-ID: $Id$ | |
7 | %% Copyright: (c) 2006 Francesco Montorsi | |
8 | %% License: wxWindows license | |
9 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% | |
10 | ||
11 | \section{\class{wxXmlNode}}\label{wxxmlnode} | |
12 | ||
13 | Represents a node in an XML document. See \helpref{wxXmlDocument}{wxxmldocument}. | |
14 | ||
15 | Node has a name and may have content | |
16 | and properties. Most common node types are {\tt wxXML\_TEXT\_NODE} (name and | |
17 | properties are irrelevant) and {\tt wxXML\_ELEMENT\_NODE} (e.g. in {\tt <title>hi</title>} there is | |
18 | an element with name="title", irrelevant content and one child ({\tt wxXML\_TEXT\_NODE} | |
19 | with content="hi"). | |
20 | ||
21 | If \texttt{wxUSE\_UNICODE} is 0, all strings are encoded in the encoding given to | |
22 | \helpref{wxXmlDocument::Load}{wxxmldocumentload} (default is UTF-8). | |
23 | ||
24 | ||
25 | \wxheading{Derived from} | |
26 | ||
27 | No base class | |
28 | ||
29 | \wxheading{Include files} | |
30 | ||
31 | <wx/xml/xml.h> | |
32 | ||
33 | \wxheading{Constants} | |
34 | ||
35 | The following are the node types supported by \helpref{wxXmlNode}{wxxmlnode}: | |
36 | ||
37 | {\small | |
38 | \begin{verbatim} | |
39 | enum wxXmlNodeType | |
40 | { | |
41 | wxXML_ELEMENT_NODE, | |
42 | wxXML_ATTRIBUTE_NODE, | |
43 | wxXML_TEXT_NODE, | |
44 | wxXML_CDATA_SECTION_NODE, | |
45 | wxXML_ENTITY_REF_NODE, | |
46 | wxXML_ENTITY_NODE, | |
47 | wxXML_PI_NODE, | |
48 | wxXML_COMMENT_NODE, | |
49 | wxXML_DOCUMENT_NODE, | |
50 | wxXML_DOCUMENT_TYPE_NODE, | |
51 | wxXML_DOCUMENT_FRAG_NODE, | |
52 | wxXML_NOTATION_NODE, | |
53 | wxXML_HTML_DOCUMENT_NODE | |
54 | } | |
55 | \end{verbatim} | |
56 | } | |
57 | ||
58 | \wxheading{See also} | |
59 | ||
60 | \helpref{wxXmlDocument}{wxxmldocument}, \helpref{wxXmlProperty}{wxxmlproperty} | |
61 | ||
62 | ||
63 | \latexignore{\rtfignore{\wxheading{Members}}} | |
64 | ||
65 | ||
66 | \membersection{wxXmlNode::wxXmlNode}\label{wxxmlnodewxxmlnode} | |
67 | ||
68 | ||
69 | \func{}{wxXmlNode}{\param{wxXmlNode* }{parent}, \param{wxXmlNodeType }{type}, \param{const wxString\& }{name}, \param{const wxString\& }{content = wxEmptyString}, \param{wxXmlProperty* }{props = \NULL}, \param{wxXmlNode* }{next = \NULL}} | |
70 | ||
71 | \wxheading{Parameters} | |
72 | ||
73 | \docparam{parent}{The parent node. Can be \NULL.} | |
74 | \docparam{type}{One of the wxXmlNodeType enumeration value.} | |
75 | \docparam{name}{The name of the node. This is the string which appears between angular brackets.} | |
76 | \docparam{content}{The content of the node. Only meaningful when {\it type} is {\tt wxXML\_TEXT\_NODE} or {\tt wxXML\_CDATA\_SECTION\_NODE}.} | |
77 | \docparam{props}{If not \NULL, this wxXmlProperty object and its eventual siblings are attached to | |
78 | the node.} | |
79 | \docparam{next}{If not \NULL, this node and its eventual siblings are attached to | |
80 | the node.} | |
81 | ||
82 | \func{}{wxXmlNode}{\param{const wxXmlNode\& }{node}} | |
83 | ||
84 | Copy constructor. Note that this does NOT copy syblings | |
85 | and parent pointer, i.e. \helpref{GetParent()}{wxxmlnodegetparent} and \helpref{GetNext()}{wxxmlnodegetnext} will return \NULL | |
86 | after using copy ctor and are never unmodified by operator=. | |
87 | ||
88 | On the other hand, it DOES copy children and properties. | |
89 | ||
90 | ||
91 | \func{}{wxXmlNode}{\param{wxXmlNodeType }{type}, \param{const wxString\& }{name}, \param{const wxString\& }{content = wxEmptyString}} | |
92 | ||
93 | A simplified version of the first constructor form. | |
94 | ||
95 | ||
96 | \membersection{wxXmlNode::\destruct{wxXmlNode}}\label{wxxmlnodedtor} | |
97 | ||
98 | \func{}{\destruct{wxXmlNode}}{\void} | |
99 | ||
100 | The virtual destructor. Deletes attached children and properties. | |
101 | ||
102 | \membersection{wxXmlNode::AddChild}\label{wxxmlnodeaddchild} | |
103 | ||
104 | \func{void}{AddChild}{\param{wxXmlNode* }{child}} | |
105 | ||
106 | Adds the given node as child of this node. To attach a second children to this node, use the | |
107 | \helpref{SetNext()}{wxxmlnodesetnext} function of the {\it child} node. | |
108 | ||
109 | \membersection{wxXmlNode::AddProperty}\label{wxxmlnodeaddproperty} | |
110 | ||
111 | \func{void}{AddProperty}{\param{const wxString\& }{name}, \param{const wxString\& }{value}} | |
112 | ||
113 | Appends a property with given {\it name} and {\it value} to the list of properties for this node. | |
114 | ||
115 | \func{void}{AddProperty}{\param{wxXmlProperty* }{prop}} | |
116 | ||
117 | Appends the given property to the list of properties for this node. | |
118 | ||
119 | \membersection{wxXmlNode::DeleteProperty}\label{wxxmlnodedeleteproperty} | |
120 | ||
121 | \func{bool}{DeleteProperty}{\param{const wxString\& }{name}} | |
122 | ||
123 | Removes the first properties which has the given {\it name} from the list of properties for this node. | |
124 | ||
125 | \membersection{wxXmlNode::GetChildren}\label{wxxmlnodegetchildren} | |
126 | ||
127 | \constfunc{wxXmlNode*}{GetChildren}{\param{void}{}} | |
128 | ||
129 | Returns the first child of this node. | |
130 | To get a pointer to the second child of this node (if it does exist), use the | |
131 | \helpref{GetNext()}{wxxmlnodegetnext} function on the returned value. | |
132 | ||
133 | \membersection{wxXmlNode::GetContent}\label{wxxmlnodegetcontent} | |
134 | ||
135 | \constfunc{wxString}{GetContent}{\void} | |
136 | ||
137 | Returns the content of this node. Can be an empty string. | |
138 | Be aware that for nodes of type \texttt{wxXML\_ELEMENT\_NODE} (the most used node type) the | |
139 | content is an empty string. See \helpref{GetNodeContent()}{wxxmlnodegetnodecontent} for more details. | |
140 | ||
141 | ||
142 | \membersection{wxXmlNode::GetNodeContent}\label{wxxmlnodegetnodecontent} | |
143 | ||
144 | \constfunc{wxString}{GetNodeContent}{\void} | |
145 | ||
146 | Returns the content of the first child node of type \texttt{wxXML\_TEXT\_NODE} or \texttt{wxXML\_CDATA\_SECTION\_NODE}. | |
147 | This function is very useful since the XML snippet \texttt{``<tagname>tagcontent</tagname>"} is represented by | |
148 | expat with the following tag tree: | |
149 | ||
150 | \begin{verbatim} | |
151 | wxXML_ENTITY_NODE name="tagname", content="" | |
152 | |-- wxXML_TEXT_NODE name="", content="tagcontent" | |
153 | \end{verbatim} | |
154 | ||
155 | or eventually: | |
156 | ||
157 | \begin{verbatim} | |
158 | wxXML_ENTITY_NODE name="tagname", content="" | |
159 | |-- wxXML_CDATA_SECTION_NODE name="", content="tagcontent" | |
160 | \end{verbatim} | |
161 | ||
162 | An empty string is returned if the node has no children of type \texttt{wxXML\_TEXT\_NODE} or \texttt{wxXML\_CDATA\_SECTION\_NODE}, or if the content of the first child of such types is empty. | |
163 | ||
164 | ||
165 | \membersection{wxXmlNode::GetName}\label{wxxmlnodegetname} | |
166 | ||
167 | \constfunc{wxString}{GetName}{\void} | |
168 | ||
169 | Returns the name of this node. Can be an empty string (e.g. for nodes of type {\tt wxXML\_TEXT\_NODE} or {\tt wxXML\_CDATA\_SECTION\_NODE}). | |
170 | ||
171 | \membersection{wxXmlNode::GetNext}\label{wxxmlnodegetnext} | |
172 | ||
173 | \constfunc{wxXmlNode*}{GetNext}{\void} | |
174 | ||
175 | Returns a pointer to the sibling of this node or \NULL if there are no siblings. | |
176 | ||
177 | \membersection{wxXmlNode::GetParent}\label{wxxmlnodegetparent} | |
178 | ||
179 | \constfunc{wxXmlNode*}{GetParent}{\void} | |
180 | ||
181 | Returns a pointer to the parent of this node or \NULL if this node has no parent. | |
182 | ||
183 | \membersection{wxXmlNode::GetPropVal}\label{wxxmlnodegetpropval} | |
184 | ||
185 | \constfunc{bool}{GetPropVal}{\param{const wxString\& }{propName}, \param{wxString* }{value}} | |
186 | ||
187 | Returns \true if a property named {\it propName} could be found. | |
188 | If the {\it value} pointer is not \NULL, the value of that property is saved there. | |
189 | ||
190 | \constfunc{wxString}{GetPropVal}{\param{const wxString\& }{propName}, \param{const wxString\& }{defaultVal}} | |
191 | ||
192 | Returns the value of the property named {\it propName} if it does exist. | |
193 | If it does not exist, the {\it defaultVal} is returned. | |
194 | ||
195 | \membersection{wxXmlNode::GetProperties}\label{wxxmlnodegetproperties} | |
196 | ||
197 | \constfunc{wxXmlProperty *}{GetProperties}{\void} | |
198 | ||
199 | Return a pointer to the first property of this node. | |
200 | ||
201 | \membersection{wxXmlNode::GetType}\label{wxxmlnodegettype} | |
202 | ||
203 | \constfunc{wxXmlNodeType}{GetType}{\void} | |
204 | ||
205 | Returns the type of this node. | |
206 | ||
207 | ||
208 | \membersection{wxXmlNode::HasProp}\label{wxxmlnodehasprop} | |
209 | ||
210 | \constfunc{bool}{HasProp}{\param{const wxString\& }{propName}} | |
211 | ||
212 | Returns \true if this node has a property named {\it propName}. | |
213 | ||
214 | \membersection{wxXmlNode::InsertChild}\label{wxxmlnodeinsertchild} | |
215 | ||
216 | \func{void}{InsertChild}{\param{wxXmlNode* }{child}, \param{wxXmlNode* }{before\_node}} | |
217 | ||
218 | Inserts the {\it child} node after {\it before\_node} in the children list. | |
219 | ||
220 | \membersection{wxXmlNode::RemoveChild}\label{wxxmlnoderemovechild} | |
221 | ||
222 | \func{bool}{RemoveChild}{\param{wxXmlNode* }{child}} | |
223 | ||
224 | Removes the given node from the children list. Returns \true if the node was found and removed | |
225 | or \false if the node could not be found. | |
226 | ||
227 | \membersection{wxXmlNode::SetChildren}\label{wxxmlnodesetchildren} | |
228 | ||
229 | \func{void}{SetChildren}{\param{wxXmlNode* }{child}} | |
230 | ||
231 | Sets as first child the given node. The caller is responsible to delete any previously present | |
232 | children node. | |
233 | ||
234 | \membersection{wxXmlNode::SetContent}\label{wxxmlnodesetcontent} | |
235 | ||
236 | \func{void}{SetContent}{\param{const wxString\& }{con}} | |
237 | ||
238 | Sets the content of this node. | |
239 | ||
240 | \membersection{wxXmlNode::SetName}\label{wxxmlnodesetname} | |
241 | ||
242 | \func{void}{SetName}{\param{const wxString\& }{name}} | |
243 | ||
244 | Sets the name of this node. | |
245 | ||
246 | \membersection{wxXmlNode::SetNext}\label{wxxmlnodesetnext} | |
247 | ||
248 | \func{void}{SetNext}{\param{wxXmlNode* }{next}} | |
249 | ||
250 | Sets as sibling the given node. The caller is responsible to delete any previously present | |
251 | sibling node. | |
252 | ||
253 | \membersection{wxXmlNode::SetParent}\label{wxxmlnodesetparent} | |
254 | ||
255 | \func{void}{SetParent}{\param{wxXmlNode* }{parent}} | |
256 | ||
257 | Sets as parent the given node. The caller is responsible to delete any previously present | |
258 | parent node. | |
259 | ||
260 | \membersection{wxXmlNode::SetProperties}\label{wxxmlnodesetproperties} | |
261 | ||
262 | \func{void}{SetProperties}{\param{wxXmlProperty* }{prop}} | |
263 | ||
264 | Sets as first property the given wxXmlProperty object. | |
265 | The caller is responsible to delete any previously present properties attached to this node. | |
266 | ||
267 | \membersection{wxXmlNode::SetType}\label{wxxmlnodesettype} | |
268 | ||
269 | \func{void}{SetType}{\param{wxXmlNodeType }{type}} | |
270 | ||
271 | Sets the type of this node. | |
272 | ||
273 | \membersection{wxXmlNode::operator=}\label{wxxmlnodeoperatorassign} | |
274 | ||
275 | \func{wxXmlNode\&}{operator=}{\param{const wxXmlNode\& }{node}} | |
276 | ||
277 | See the copy constructor for more info. | |
278 |