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166 lines
8.2 KiB
166 lines
8.2 KiB
13 years ago
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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
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<!-- /home/espenr/tmp/qt-3.3.8-espenr-2499/qt-x11-free-3.3.8/src/xml/tqdom.cpp:3717 -->
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13 years ago
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<html>
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<head>
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<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
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<title>TQDomAttr Class</title>
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<style type="text/css"><!--
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body { background: #ffffff; color: black; }
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--></style>
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<body>
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<table border="0" cellpadding="0" cellspacing="0" width="100%">
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<tr bgcolor="#E5E5E5">
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<td valign=center>
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<a href="index.html">
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<font color="#004faf">Home</font></a>
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<font color="#004faf">All Classes</font></a>
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<font color="#004faf">Main Classes</font></a>
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<font color="#004faf">Annotated</font></a>
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<font color="#004faf">Grouped Classes</font></a>
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<font color="#004faf">Functions</font></a>
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</td>
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<td align="right" valign="center"><img src="logo32.png" align="right" width="64" height="32" border="0"></td></tr></table><h1 align=center>TQDomAttr Class Reference<br><small>[<a href="xml.html">XML module</a>]</small></h1>
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<p>The TQDomAttr class represents one attribute of a TQDomElement.
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<a href="#details">More...</a>
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<p>All the functions in this class are <a href="threads.html#reentrant">reentrant</a> when TQt is built with thread support.</p>
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<p><tt>#include <<a href="tqdom-h.html">tqdom.h</a>></tt>
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<p>Inherits <a href="tqdomnode.html">TQDomNode</a>.
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<p><a href="tqdomattr-members.html">List of all member functions.</a>
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<h2>Public Members</h2>
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<ul>
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<li class=fn><a href="#TQDomAttr"><b>TQDomAttr</b></a> ()</li>
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<li class=fn><a href="#TQDomAttr-2"><b>TQDomAttr</b></a> ( const TQDomAttr & x )</li>
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<li class=fn>TQDomAttr & <a href="#operator-eq"><b>operator=</b></a> ( const TQDomAttr & x )</li>
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<li class=fn><a href="#~TQDomAttr"><b>~TQDomAttr</b></a> ()</li>
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<li class=fn>virtual TQString <a href="#name"><b>name</b></a> () const</li>
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<li class=fn>virtual bool <a href="#specified"><b>specified</b></a> () const</li>
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<li class=fn>virtual TQDomElement <a href="#ownerElement"><b>ownerElement</b></a> () const</li>
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<li class=fn>virtual TQString <a href="#value"><b>value</b></a> () const</li>
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<li class=fn>virtual void <a href="#setValue"><b>setValue</b></a> ( const TQString & v )</li>
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<li class=fn>virtual TQDomNode::NodeType <a href="#nodeType"><b>nodeType</b></a> () const</li>
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<li class=fn>virtual bool <a href="#isAttr"><b>isAttr</b></a> () const</li>
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</ul>
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<hr><a name="details"></a><h2>Detailed Description</h2>
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The TQDomAttr class represents one attribute of a <a href="tqdomelement.html">TQDomElement</a>.
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<p>
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<p> For example, the following piece of XML produces an element with
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no children, but two attributes:
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<p> <pre>
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<link href="http://www.trolltech.com" color="red" />
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</pre>
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<p> You can access the attributes of an element with code like this:
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<p> <pre>
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<a href="tqdomelement.html">TQDomElement</a> e = //...
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//...
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TQDomAttr a = e.<a href="tqdomelement.html#attributeNode">attributeNode</a>( "href" );
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cout << a.<a href="#value">value</a>() << endl; // prints "http://www.trolltech.com"
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a.<a href="#setValue">setValue</a>( "http://doc.trolltech.com" ); // change the node's attribute
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TQDomAttr a2 = e.<a href="tqdomelement.html#attributeNode">attributeNode</a>( "href" );
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cout << a2.<a href="#value">value</a>() << endl; // prints "http://doc.trolltech.com"
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</pre>
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<p> This example also shows that changing an attribute received from
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an element changes the attribute of the element. If you do not
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want to change the value of the element's attribute you must
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use <a href="tqdomnode.html#cloneNode">cloneNode</a>() to get an independent copy of the attribute.
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<p> TQDomAttr can return the <a href="#name">name</a>() and <a href="#value">value</a>() of an attribute. An
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attribute's value is set with <a href="#setValue">setValue</a>(). If <a href="#specified">specified</a>() returns
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TRUE the value was either set in the document or set with
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setValue(); otherwise the value hasn't been set. The node this
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attribute is attached to (if any) is returned by <a href="#ownerElement">ownerElement</a>().
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<p> For further information about the Document Object Model see
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<a href="http://www.w3.org/TR/REC-DOM-Level-1/">http://www.w3.org/TR/REC-DOM-Level-1/</a> and
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<a href="http://www.w3.org/TR/DOM-Level-2-Core/">http://www.w3.org/TR/DOM-Level-2-Core/</a>.
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For a more general introduction of the DOM implementation see the
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<a href="tqdomdocument.html">TQDomDocument</a> documentation.
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<p>See also <a href="xml-tools.html">XML</a>.
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<hr><h2>Member Function Documentation</h2>
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<h3 class=fn><a name="TQDomAttr"></a>TQDomAttr::TQDomAttr ()
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</h3>
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Constructs an empty attribute.
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<h3 class=fn><a name="TQDomAttr-2"></a>TQDomAttr::TQDomAttr ( const <a href="tqdomattr.html">TQDomAttr</a> & x )
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</h3>
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Constructs a copy of <em>x</em>.
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<p> The data of the copy is shared (shallow copy): modifying one node
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will also change the other. If you want to make a <a href="shclass.html#deep-copy">deep copy</a>, use
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<a href="tqdomnode.html#cloneNode">cloneNode</a>().
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<h3 class=fn><a name="~TQDomAttr"></a>TQDomAttr::~TQDomAttr ()
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</h3>
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Destroys the object and frees its resources.
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<h3 class=fn>bool <a name="isAttr"></a>TQDomAttr::isAttr () const<tt> [virtual]</tt>
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</h3>
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Returns TRUE.
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<p>Reimplemented from <a href="tqdomnode.html#isAttr">TQDomNode</a>.
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<h3 class=fn><a href="ntqstring.html">TQString</a> <a name="name"></a>TQDomAttr::name () const<tt> [virtual]</tt>
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</h3>
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Returns the attribute's name.
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<h3 class=fn><a href="tqdomnode.html#NodeType-enum">TQDomNode::NodeType</a> <a name="nodeType"></a>TQDomAttr::nodeType () const<tt> [virtual]</tt>
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</h3>
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Returns <a href="tqdomnode.html#NodeType-enum">AttributeNode</a>.
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<p>Reimplemented from <a href="tqdomnode.html#nodeType">TQDomNode</a>.
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<h3 class=fn><a href="tqdomattr.html">TQDomAttr</a> & <a name="operator-eq"></a>TQDomAttr::operator= ( const <a href="tqdomattr.html">TQDomAttr</a> & x )
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</h3>
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Assigns <em>x</em> to this DOM attribute.
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<p> The data of the copy is shared (shallow copy): modifying one node
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will also change the other. If you want to make a <a href="shclass.html#deep-copy">deep copy</a>, use
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<a href="tqdomnode.html#cloneNode">cloneNode</a>().
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<h3 class=fn><a href="tqdomelement.html">TQDomElement</a> <a name="ownerElement"></a>TQDomAttr::ownerElement () const<tt> [virtual]</tt>
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</h3>
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Returns the element node this attribute is attached to or a <a href="tqdomnode.html#isNull">null node</a> if this attribute is not
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attached to any element.
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<h3 class=fn>void <a name="setValue"></a>TQDomAttr::setValue ( const <a href="ntqstring.html">TQString</a> & v )<tt> [virtual]</tt>
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</h3>
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Sets the attribute's value to <em>v</em>.
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<p> <p>See also <a href="#value">value</a>().
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<h3 class=fn>bool <a name="specified"></a>TQDomAttr::specified () const<tt> [virtual]</tt>
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</h3>
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Returns TRUE if the attribute has either been expicitly specified
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in the XML document or was set by the user with <a href="#setValue">setValue</a>().
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Returns FALSE if the value hasn't been specified or set.
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<p> <p>See also <a href="#setValue">setValue</a>().
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<h3 class=fn><a href="ntqstring.html">TQString</a> <a name="value"></a>TQDomAttr::value () const<tt> [virtual]</tt>
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</h3>
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Returns the value of the attribute or <a href="ntqstring.html#TQString-null">TQString::null</a> if the
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attribute has not been specified.
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<p> <p>See also <a href="#specified">specified</a>() and <a href="#setValue">setValue</a>().
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<!-- eof -->
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<hr><p>
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This file is part of the <a href="index.html">TQt toolkit</a>.
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Copyright © 1995-2007
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<a href="http://www.trolltech.com/">Trolltech</a>. All Rights Reserved.<p><address><hr><div align=center>
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<table width=100% cellspacing=0 border=0><tr>
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<td>Copyright © 2007
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<a href="troll.html">Trolltech</a><td align=center><a href="trademarks.html">Trademarks</a>
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<td align=right><div align=right>TQt 3.3.8</div>
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</table></div></address></body>
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</html>
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