<?xml version="1.0" encoding="iso-8859-1"?>
<!DOCTYPE html
PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "DTD/xhtml1-strict.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en">
<head>
<title>Qt 4.2: dommodel.cpp Example File (itemviews/simpledommodel/dommodel.cpp)</title>
<link href="classic.css" rel="stylesheet" type="text/css" />
</head>
<body>
<table border="0" cellpadding="0" cellspacing="0" width="100%">
<tr>
<td align="left" valign="top" width="32"><a href="http://www.trolltech.com/products/qt"><img src="images/qt-logo.png" align="left" width="32" height="32" border="0" /></a></td>
<td width="1"> </td><td class="postheader" valign="center"><a href="index.html"><font color="#004faf">Home</font></a> · <a href="classes.html"><font color="#004faf">All Classes</font></a> · <a href="mainclasses.html"><font color="#004faf">Main Classes</font></a> · <a href="groups.html"><font color="#004faf">Grouped Classes</font></a> · <a href="modules.html"><font color="#004faf">Modules</font></a> · <a href="functions.html"><font color="#004faf">Functions</font></a></td>
<td align="right" valign="top" width="230"><a href="http://www.trolltech.com"><img src="images/trolltech-logo.png" align="right" width="203" height="32" border="0" /></a></td></tr></table><h1 align="center">dommodel.cpp Example File<br /><sup><sup>itemviews/simpledommodel/dommodel.cpp</sup></sup></h1>
<pre> /****************************************************************************
**
** Copyright (C) 2005-2006 Trolltech ASA. All rights reserved.
**
** This file is part of the example classes of the Qt Toolkit.
**
** This file may be used under the terms of the GNU General Public
** License version 2.0 as published by the Free Software Foundation
** and appearing in the file LICENSE.GPL included in the packaging of
** this file. Please review the following information to ensure GNU
** General Public Licensing requirements will be met:
** http:<span class="comment">//www.trolltech.com/products/qt/opensource.html</span>
**
** If you are unsure which license is appropriate for your use, please
** review the following information:
** http:<span class="comment">//www.trolltech.com/products/qt/licensing.html or contact the</span>
** sales department at sales@trolltech.com.
**
** This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
** WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
**
****************************************************************************/
#include <QtGui>
#include <QtXml>
#include "domitem.h"
#include "dommodel.h"
DomModel::DomModel(QDomDocument document, QObject *parent)
: QAbstractItemModel(parent), domDocument(document)
{
rootItem = new DomItem(domDocument, 0);
}
DomModel::~DomModel()
{
delete rootItem;
}
int DomModel::columnCount(const QModelIndex &/*parent*/) const
{
return 3;
}
QVariant DomModel::data(const QModelIndex &index, int role) const
{
if (!index.isValid())
return QVariant();
if (role != Qt::DisplayRole)
return QVariant();
DomItem *item = static_cast<DomItem*>(index.internalPointer());
QDomNode node = item->node();
QStringList attributes;
QDomNamedNodeMap attributeMap = node.attributes();
switch (index.column()) {
case 0:
return node.nodeName();
case 1:
for (int i = 0; (unsigned int)(i) < attributeMap.count(); ++i) {
QDomNode attribute = attributeMap.item(i);
attributes << attribute.nodeName() + "=\""
+attribute.nodeValue() + "\"";
}
return attributes.join(" ");
case 2:
return node.nodeValue().split("\n").join(" ");
default:
return QVariant();
}
}
Qt::ItemFlags DomModel::flags(const QModelIndex &index) const
{
if (!index.isValid())
return Qt::ItemIsEnabled;
return Qt::ItemIsEnabled | Qt::ItemIsSelectable;
}
QVariant DomModel::headerData(int section, Qt::Orientation orientation,
int role) const
{
if (orientation == Qt::Horizontal && role == Qt::DisplayRole) {
switch (section) {
case 0:
return tr("Name");
case 1:
return tr("Attributes");
case 2:
return tr("Value");
default:
return QVariant();
}
}
return QVariant();
}
QModelIndex DomModel::index(int row, int column, const QModelIndex &parent)
const
{
DomItem *parentItem;
if (!parent.isValid())
parentItem = rootItem;
else
parentItem = static_cast<DomItem*>(parent.internalPointer());
DomItem *childItem = parentItem->child(row);
if (childItem)
return createIndex(row, column, childItem);
else
return QModelIndex();
}
QModelIndex DomModel::parent(const QModelIndex &child) const
{
if (!child.isValid())
return QModelIndex();
DomItem *childItem = static_cast<DomItem*>(child.internalPointer());
DomItem *parentItem = childItem->parent();
if (!parentItem || parentItem == rootItem)
return QModelIndex();
return createIndex(parentItem->row(), 0, parentItem);
}
int DomModel::rowCount(const QModelIndex &parent) const
{
DomItem *parentItem;
if (!parent.isValid())
parentItem = rootItem;
else
parentItem = static_cast<DomItem*>(parent.internalPointer());
return parentItem->node().childNodes().count();
}</pre>
<p /><address><hr /><div align="center">
<table width="100%" cellspacing="0" border="0"><tr class="address">
<td width="30%">Copyright © 2006 <a href="trolltech.html">Trolltech</a></td>
<td width="40%" align="center"><a href="trademarks.html">Trademarks</a></td>
<td width="30%" align="right"><div align="right">Qt 4.2.1</div></td>
</tr></table></div></address></body>
</html>
