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<title>Qt 4.6: QFileSystemModel Class Reference</title>
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<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="functions.html"><font color="#004faf">All Functions</font></a> · <a href="overviews.html"><font color="#004faf">Overviews</font></a></td></tr></table><h1 class="title">QFileSystemModel Class Reference<br /><span class="small-subtitle">[<a href="qtgui.html">QtGui</a> module]</span>
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<p>The QFileSystemModel class provides a data model for the local filesystem. <a href="#details">More...</a></p>
<pre> #include <QFileSystemModel></pre><p>Inherits <a href="qabstractitemmodel.html">QAbstractItemModel</a>.</p>
<p>This class was introduced in Qt 4.4.</p>
<ul>
<li><a href="qfilesystemmodel-members.html">List of all members, including inherited members</a></li>
</ul>
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<a name="public-types"></a>
<h2>Public Types</h2>
<table class="alignedsummary" border="0" cellpadding="0" cellspacing="0" width="100%">
<tr><td class="memItemLeft" align="right" valign="top">enum </td><td class="memItemRight" valign="bottom"><b><a href="qfilesystemmodel.html#Roles-enum">Roles</a></b> { FileIconRole, FilePathRole, FileNameRole, FilePermissions }</td></tr>
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<a name="properties"></a>
<h2>Properties</h2>
<ul>
<li><div class="fn"><b><a href="qfilesystemmodel.html#nameFilterDisables-prop">nameFilterDisables</a></b> : bool</div></li>
<li><div class="fn"><b><a href="qfilesystemmodel.html#readOnly-prop">readOnly</a></b> : bool</div></li>
<li><div class="fn"><b><a href="qfilesystemmodel.html#resolveSymlinks-prop">resolveSymlinks</a></b> : bool</div></li>
</ul>
<ul>
<li><div bar="2" class="fn"></div>1 property inherited from <a href="qobject.html#properties">QObject</a></li>
</ul>
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<a name="public-functions"></a>
<h2>Public Functions</h2>
<table class="alignedsummary" border="0" cellpadding="0" cellspacing="0" width="100%">
<tr><td class="memItemLeft" align="right" valign="top"></td><td class="memItemRight" valign="bottom"><b><a href="qfilesystemmodel.html#QFileSystemModel">QFileSystemModel</a></b> ( QObject * <i>parent</i> = 0 )</td></tr>
<tr><td class="memItemLeft" align="right" valign="top"></td><td class="memItemRight" valign="bottom"><b><a href="qfilesystemmodel.html#dtor.QFileSystemModel">~QFileSystemModel</a></b> ()</td></tr>
<tr><td class="memItemLeft" align="right" valign="top">QIcon </td><td class="memItemRight" valign="bottom"><b><a href="qfilesystemmodel.html#fileIcon">fileIcon</a></b> ( const QModelIndex & <i>index</i> ) const</td></tr>
<tr><td class="memItemLeft" align="right" valign="top">QFileInfo </td><td class="memItemRight" valign="bottom"><b><a href="qfilesystemmodel.html#fileInfo">fileInfo</a></b> ( const QModelIndex & <i>index</i> ) const</td></tr>
<tr><td class="memItemLeft" align="right" valign="top">QString </td><td class="memItemRight" valign="bottom"><b><a href="qfilesystemmodel.html#fileName">fileName</a></b> ( const QModelIndex & <i>index</i> ) const</td></tr>
<tr><td class="memItemLeft" align="right" valign="top">QString </td><td class="memItemRight" valign="bottom"><b><a href="qfilesystemmodel.html#filePath">filePath</a></b> ( const QModelIndex & <i>index</i> ) const</td></tr>
<tr><td class="memItemLeft" align="right" valign="top">QDir::Filters </td><td class="memItemRight" valign="bottom"><b><a href="qfilesystemmodel.html#filter">filter</a></b> () const</td></tr>
<tr><td class="memItemLeft" align="right" valign="top">QFileIconProvider * </td><td class="memItemRight" valign="bottom"><b><a href="qfilesystemmodel.html#iconProvider">iconProvider</a></b> () const</td></tr>
<tr><td class="memItemLeft" align="right" valign="top">QModelIndex </td><td class="memItemRight" valign="bottom"><b><a href="qfilesystemmodel.html#index-2">index</a></b> ( const QString & <i>path</i>, int <i>column</i> = 0 ) const</td></tr>
<tr><td class="memItemLeft" align="right" valign="top">bool </td><td class="memItemRight" valign="bottom"><b><a href="qfilesystemmodel.html#isDir">isDir</a></b> ( const QModelIndex & <i>index</i> ) const</td></tr>
<tr><td class="memItemLeft" align="right" valign="top">bool </td><td class="memItemRight" valign="bottom"><b><a href="qfilesystemmodel.html#readOnly-prop">isReadOnly</a></b> () const</td></tr>
<tr><td class="memItemLeft" align="right" valign="top">QDateTime </td><td class="memItemRight" valign="bottom"><b><a href="qfilesystemmodel.html#lastModified">lastModified</a></b> ( const QModelIndex & <i>index</i> ) const</td></tr>
<tr><td class="memItemLeft" align="right" valign="top">QModelIndex </td><td class="memItemRight" valign="bottom"><b><a href="qfilesystemmodel.html#mkdir">mkdir</a></b> ( const QModelIndex & <i>parent</i>, const QString & <i>name</i> )</td></tr>
<tr><td class="memItemLeft" align="right" valign="top">QVariant </td><td class="memItemRight" valign="bottom"><b><a href="qfilesystemmodel.html#myComputer">myComputer</a></b> ( int <i>role</i> = Qt::DisplayRole ) const</td></tr>
<tr><td class="memItemLeft" align="right" valign="top">bool </td><td class="memItemRight" valign="bottom"><b><a href="qfilesystemmodel.html#nameFilterDisables-prop">nameFilterDisables</a></b> () const</td></tr>
<tr><td class="memItemLeft" align="right" valign="top">QStringList </td><td class="memItemRight" valign="bottom"><b><a href="qfilesystemmodel.html#nameFilters">nameFilters</a></b> () const</td></tr>
<tr><td class="memItemLeft" align="right" valign="top">QFile::Permissions </td><td class="memItemRight" valign="bottom"><b><a href="qfilesystemmodel.html#permissions">permissions</a></b> ( const QModelIndex & <i>index</i> ) const</td></tr>
<tr><td class="memItemLeft" align="right" valign="top">bool </td><td class="memItemRight" valign="bottom"><b><a href="qfilesystemmodel.html#remove">remove</a></b> ( const QModelIndex & <i>index</i> ) const</td></tr>
<tr><td class="memItemLeft" align="right" valign="top">bool </td><td class="memItemRight" valign="bottom"><b><a href="qfilesystemmodel.html#resolveSymlinks-prop">resolveSymlinks</a></b> () const</td></tr>
<tr><td class="memItemLeft" align="right" valign="top">bool </td><td class="memItemRight" valign="bottom"><b><a href="qfilesystemmodel.html#rmdir">rmdir</a></b> ( const QModelIndex & <i>index</i> ) const</td></tr>
<tr><td class="memItemLeft" align="right" valign="top">QDir </td><td class="memItemRight" valign="bottom"><b><a href="qfilesystemmodel.html#rootDirectory">rootDirectory</a></b> () const</td></tr>
<tr><td class="memItemLeft" align="right" valign="top">QString </td><td class="memItemRight" valign="bottom"><b><a href="qfilesystemmodel.html#rootPath">rootPath</a></b> () const</td></tr>
<tr><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><b><a href="qfilesystemmodel.html#setFilter">setFilter</a></b> ( QDir::Filters <i>filters</i> )</td></tr>
<tr><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><b><a href="qfilesystemmodel.html#setIconProvider">setIconProvider</a></b> ( QFileIconProvider * <i>provider</i> )</td></tr>
<tr><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><b><a href="qfilesystemmodel.html#nameFilterDisables-prop">setNameFilterDisables</a></b> ( bool <i>enable</i> )</td></tr>
<tr><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><b><a href="qfilesystemmodel.html#setNameFilters">setNameFilters</a></b> ( const QStringList & <i>filters</i> )</td></tr>
<tr><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><b><a href="qfilesystemmodel.html#readOnly-prop">setReadOnly</a></b> ( bool <i>enable</i> )</td></tr>
<tr><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><b><a href="qfilesystemmodel.html#resolveSymlinks-prop">setResolveSymlinks</a></b> ( bool <i>enable</i> )</td></tr>
<tr><td class="memItemLeft" align="right" valign="top">QModelIndex </td><td class="memItemRight" valign="bottom"><b><a href="qfilesystemmodel.html#setRootPath">setRootPath</a></b> ( const QString & <i>newPath</i> )</td></tr>
<tr><td class="memItemLeft" align="right" valign="top">qint64 </td><td class="memItemRight" valign="bottom"><b><a href="qfilesystemmodel.html#size">size</a></b> ( const QModelIndex & <i>index</i> ) const</td></tr>
<tr><td class="memItemLeft" align="right" valign="top">QString </td><td class="memItemRight" valign="bottom"><b><a href="qfilesystemmodel.html#type">type</a></b> ( const QModelIndex & <i>index</i> ) const</td></tr>
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<a name="reimplemented-public-functions"></a>
<h2>Reimplemented Public Functions</h2>
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<tr><td class="memItemLeft" align="right" valign="top">virtual bool </td><td class="memItemRight" valign="bottom"><b><a href="qfilesystemmodel.html#canFetchMore">canFetchMore</a></b> ( const QModelIndex & <i>parent</i> ) const</td></tr>
<tr><td class="memItemLeft" align="right" valign="top">virtual int </td><td class="memItemRight" valign="bottom"><b><a href="qfilesystemmodel.html#columnCount">columnCount</a></b> ( const QModelIndex & <i>parent</i> = QModelIndex() ) const</td></tr>
<tr><td class="memItemLeft" align="right" valign="top">virtual QVariant </td><td class="memItemRight" valign="bottom"><b><a href="qfilesystemmodel.html#data">data</a></b> ( const QModelIndex & <i>index</i>, int <i>role</i> = Qt::DisplayRole ) const</td></tr>
<tr><td class="memItemLeft" align="right" valign="top">virtual bool </td><td class="memItemRight" valign="bottom"><b><a href="qfilesystemmodel.html#dropMimeData">dropMimeData</a></b> ( const QMimeData * <i>data</i>, Qt::DropAction <i>action</i>, int <i>row</i>, int <i>column</i>, const QModelIndex & <i>parent</i> )</td></tr>
<tr><td class="memItemLeft" align="right" valign="top">virtual void </td><td class="memItemRight" valign="bottom"><b><a href="qfilesystemmodel.html#fetchMore">fetchMore</a></b> ( const QModelIndex & <i>parent</i> )</td></tr>
<tr><td class="memItemLeft" align="right" valign="top">virtual Qt::ItemFlags </td><td class="memItemRight" valign="bottom"><b><a href="qfilesystemmodel.html#flags">flags</a></b> ( const QModelIndex & <i>index</i> ) const</td></tr>
<tr><td class="memItemLeft" align="right" valign="top">virtual bool </td><td class="memItemRight" valign="bottom"><b><a href="qfilesystemmodel.html#hasChildren">hasChildren</a></b> ( const QModelIndex & <i>parent</i> = QModelIndex() ) const</td></tr>
<tr><td class="memItemLeft" align="right" valign="top">virtual QVariant </td><td class="memItemRight" valign="bottom"><b><a href="qfilesystemmodel.html#headerData">headerData</a></b> ( int <i>section</i>, Qt::Orientation <i>orientation</i>, int <i>role</i> = Qt::DisplayRole ) const</td></tr>
<tr><td class="memItemLeft" align="right" valign="top">virtual QModelIndex </td><td class="memItemRight" valign="bottom"><b><a href="qfilesystemmodel.html#index">index</a></b> ( int <i>row</i>, int <i>column</i>, const QModelIndex & <i>parent</i> = QModelIndex() ) const</td></tr>
<tr><td class="memItemLeft" align="right" valign="top">virtual QMimeData * </td><td class="memItemRight" valign="bottom"><b><a href="qfilesystemmodel.html#mimeData">mimeData</a></b> ( const QModelIndexList & <i>indexes</i> ) const</td></tr>
<tr><td class="memItemLeft" align="right" valign="top">virtual QStringList </td><td class="memItemRight" valign="bottom"><b><a href="qfilesystemmodel.html#mimeTypes">mimeTypes</a></b> () const</td></tr>
<tr><td class="memItemLeft" align="right" valign="top">virtual QModelIndex </td><td class="memItemRight" valign="bottom"><b><a href="qfilesystemmodel.html#parent">parent</a></b> ( const QModelIndex & <i>index</i> ) const</td></tr>
<tr><td class="memItemLeft" align="right" valign="top">virtual int </td><td class="memItemRight" valign="bottom"><b><a href="qfilesystemmodel.html#rowCount">rowCount</a></b> ( const QModelIndex & <i>parent</i> = QModelIndex() ) const</td></tr>
<tr><td class="memItemLeft" align="right" valign="top">virtual bool </td><td class="memItemRight" valign="bottom"><b><a href="qfilesystemmodel.html#setData">setData</a></b> ( const QModelIndex & <i>idx</i>, const QVariant & <i>value</i>, int <i>role</i> = Qt::EditRole )</td></tr>
<tr><td class="memItemLeft" align="right" valign="top">virtual void </td><td class="memItemRight" valign="bottom"><b><a href="qfilesystemmodel.html#sort">sort</a></b> ( int <i>column</i>, Qt::SortOrder <i>order</i> = Qt::AscendingOrder )</td></tr>
<tr><td class="memItemLeft" align="right" valign="top">virtual Qt::DropActions </td><td class="memItemRight" valign="bottom"><b><a href="qfilesystemmodel.html#supportedDropActions">supportedDropActions</a></b> () const</td></tr>
</table>
<ul>
<li><div bar="2" class="fn"></div>35 public functions inherited from <a href="qabstractitemmodel.html#public-functions">QAbstractItemModel</a></li>
<li><div bar="2" class="fn"></div>29 public functions inherited from <a href="qobject.html#public-functions">QObject</a></li>
</ul>
<hr />
<a name="signals"></a>
<h2>Signals</h2>
<table class="alignedsummary" border="0" cellpadding="0" cellspacing="0" width="100%">
<tr><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><b><a href="qfilesystemmodel.html#fileRenamed">fileRenamed</a></b> ( const QString & <i>path</i>, const QString & <i>oldName</i>, const QString & <i>newName</i> )</td></tr>
<tr><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><b><a href="qfilesystemmodel.html#rootPathChanged">rootPathChanged</a></b> ( const QString & <i>newPath</i> )</td></tr>
</table>
<ul>
<li><div bar="2" class="fn"></div>18 signals inherited from <a href="qabstractitemmodel.html#signals">QAbstractItemModel</a></li>
<li><div bar="2" class="fn"></div>1 signal inherited from <a href="qobject.html#signals">QObject</a></li>
</ul>
<hr />
<a name="reimplemented-protected-functions"></a>
<h2>Reimplemented Protected Functions</h2>
<table class="alignedsummary" border="0" cellpadding="0" cellspacing="0" width="100%">
<tr><td class="memItemLeft" align="right" valign="top">virtual bool </td><td class="memItemRight" valign="bottom"><b><a href="qfilesystemmodel.html#event">event</a></b> ( QEvent * <i>event</i> )</td></tr>
<tr><td class="memItemLeft" align="right" valign="top">virtual void </td><td class="memItemRight" valign="bottom"><b><a href="qfilesystemmodel.html#timerEvent">timerEvent</a></b> ( QTimerEvent * <i>event</i> )</td></tr>
</table>
<ul>
<li><div bar="2" class="fn"></div>21 protected functions inherited from <a href="qabstractitemmodel.html#protected-functions">QAbstractItemModel</a></li>
<li><div bar="2" class="fn"></div>7 protected functions inherited from <a href="qobject.html#protected-functions">QObject</a></li>
</ul>
<h3>Additional Inherited Members</h3>
<ul>
<li><div class="fn"></div>2 public slots inherited from <a href="qabstractitemmodel.html#public-slots">QAbstractItemModel</a></li>
<li><div class="fn"></div>1 public slot inherited from <a href="qobject.html#public-slots">QObject</a></li>
<li><div class="fn"></div>5 static public members inherited from <a href="qobject.html#static-public-members">QObject</a></li>
<li><div class="fn"></div>21 protected functions inherited from <a href="qabstractitemmodel.html#protected-functions">QAbstractItemModel</a></li>
<li><div class="fn"></div>7 protected functions inherited from <a href="qobject.html#protected-functions">QObject</a></li>
</ul>
<a name="details"></a>
<hr />
<h2>Detailed Description</h2>
<p>The QFileSystemModel class provides a data model for the local filesystem.</p>
<p>This class provides access to the local filesystem, providing functions for renaming and removing files and directories, and for creating new directories. In the simplest case, it can be used with a suitable display widget as part of a browser or filter.</p>
<p>QFileSystemModel will not fetch any files or directories until setRootPath is called. This will prevent any unnecessary querying on the file system until that point such as listing the drives on Windows.</p>
<p>Unlike the <a href="qdirmodel.html">QDirModel</a>, QFileSystemModel uses a separate thread to populate itself so it will not cause the main thread to hang as the file system is being queried. Calls to <a href="qfilesystemmodel.html#rowCount">rowCount</a>() will return 0 until the model populates a directory.</p>
<p>QFileSystemModel keeps a cache with file information. The cache is automatically kept up to date using the <a href="qfilesystemwatcher.html">QFileSystemWatcher</a>.</p>
<p>QFileSystemModel can be accessed using the standard interface provided by <a href="qabstractitemmodel.html">QAbstractItemModel</a>, but it also provides some convenience functions that are specific to a directory model. The <a href="qfilesystemmodel.html#fileInfo">fileInfo</a>(), <a href="qfilesystemmodel.html#isDir">isDir</a>(), <a href="qobject-qt3.html#name" class="compat">name</a>(), and path() functions provide information about the underlying files and directories related to items in the model. Directories can be created and removed using <a href="qfilesystemmodel.html#mkdir">mkdir</a>(), <a href="qfilesystemmodel.html#rmdir">rmdir</a>().</p>
<p><b>Note:</b> QFileSystemModel requires an instance of a GUI application.</p>
<p>See also <a href="model-view-model.html">Model Classes</a>.</p>
<hr />
<h2>Member Type Documentation</h2>
<a name="//apple_ref/cpp/tag/QFileSystemModel/Roles"></a>
<a name="//apple_ref/cpp/econst/QFileSystemModel/FileIconRole"></a>
<a name="//apple_ref/cpp/econst/QFileSystemModel/FilePathRole"></a>
<a name="//apple_ref/cpp/econst/QFileSystemModel/FileNameRole"></a>
<a name="//apple_ref/cpp/econst/QFileSystemModel/FilePermissions"></a>
<h3 class="fn"><a name="Roles-enum"></a>enum QFileSystemModel::Roles</h3>
<p><table class="valuelist" border="1" cellpadding="2" cellspacing="1" width="40%">
<tr><th width="60%">Constant</th><th width="40%">Value</th></tr>
<tr><td valign="top"><tt>QFileSystemModel::FileIconRole</tt></td><td align="center" valign="top"><tt>Qt::DecorationRole</tt></td></tr>
<tr><td valign="top"><tt>QFileSystemModel::FilePathRole</tt></td><td align="center" valign="top"><tt>Qt::UserRole + 1</tt></td></tr>
<tr><td valign="top"><tt>QFileSystemModel::FileNameRole</tt></td><td align="center" valign="top"><tt>Qt::UserRole + 2</tt></td></tr>
<tr><td valign="top"><tt>QFileSystemModel::FilePermissions</tt></td><td align="center" valign="top"><tt>Qt::UserRole + 3</tt></td></tr>
</table></p>
<hr />
<h2>Property Documentation</h2>
<a name="//apple_ref/cpp/instm/QFileSystemModel/nameFilterDisables"></a>
<a name="//apple_ref/cpp/instm/QFileSystemModel/setNameFilterDisables"></a>
<h3 class="fn"><a name="nameFilterDisables-prop"></a>nameFilterDisables : bool</h3>
<p>This property holds whether files that don't pass the name filter are hidden or disabled.</p>
<p>This property is true by default</p>
<p><b>Access functions:</b></p>
<table class="alignedsummary" border="0" cellpadding="0" cellspacing="0" width="100%">
<tr><td class="memItemLeft" align="right" valign="top">bool </td><td class="memItemRight" valign="bottom"><b>nameFilterDisables</b> () const</td></tr>
<tr><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><b>setNameFilterDisables</b> ( bool <i>enable</i> )</td></tr>
</table>
<a name="//apple_ref/cpp/instm/QFileSystemModel/isReadOnly"></a>
<a name="//apple_ref/cpp/instm/QFileSystemModel/setReadOnly"></a>
<h3 class="fn"><a name="readOnly-prop"></a>readOnly : bool</h3>
<p>This property holds whether the directory model allows writing to the file system.</p>
<p>If this property is set to false, the directory model will allow renaming, copying and deleting of files and directories.</p>
<p>This property is true by default</p>
<p><b>Access functions:</b></p>
<table class="alignedsummary" border="0" cellpadding="0" cellspacing="0" width="100%">
<tr><td class="memItemLeft" align="right" valign="top">bool </td><td class="memItemRight" valign="bottom"><b>isReadOnly</b> () const</td></tr>
<tr><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><b>setReadOnly</b> ( bool <i>enable</i> )</td></tr>
</table>
<a name="//apple_ref/cpp/instm/QFileSystemModel/resolveSymlinks"></a>
<a name="//apple_ref/cpp/instm/QFileSystemModel/setResolveSymlinks"></a>
<h3 class="fn"><a name="resolveSymlinks-prop"></a>resolveSymlinks : bool</h3>
<p>This property holds whether the directory model should resolve symbolic links.</p>
<p>This is only relevant on operating systems that support symbolic links.</p>
<p>By default, this property is false.</p>
<p><b>Access functions:</b></p>
<table class="alignedsummary" border="0" cellpadding="0" cellspacing="0" width="100%">
<tr><td class="memItemLeft" align="right" valign="top">bool </td><td class="memItemRight" valign="bottom"><b>resolveSymlinks</b> () const</td></tr>
<tr><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><b>setResolveSymlinks</b> ( bool <i>enable</i> )</td></tr>
</table>
<hr />
<h2>Member Function Documentation</h2>
<a name="//apple_ref/cpp/instm/QFileSystemModel/QFileSystemModel"></a>
<h3 class="fn"><a name="QFileSystemModel"></a>QFileSystemModel::QFileSystemModel ( <a href="qobject.html">QObject</a> * <i>parent</i> = 0 )</h3>
<p>Constructs a file system model with the given <i>parent</i>.</p>
<a name="//apple_ref/cpp/instm/QFileSystemModel/~QFileSystemModel"></a>
<h3 class="fn"><a name="dtor.QFileSystemModel"></a>QFileSystemModel::~QFileSystemModel ()</h3>
<p>Destroys this file system model.</p>
<a name="//apple_ref/cpp/instm/QFileSystemModel/canFetchMore"></a>
<h3 class="fn"><a name="canFetchMore"></a>bool QFileSystemModel::canFetchMore ( const <a href="qmodelindex.html">QModelIndex</a> & <i>parent</i> ) const <tt> [virtual]</tt></h3>
<p>Reimplemented from <a href="qabstractitemmodel.html#canFetchMore">QAbstractItemModel::canFetchMore</a>().</p>
<a name="//apple_ref/cpp/instm/QFileSystemModel/columnCount"></a>
<h3 class="fn"><a name="columnCount"></a>int QFileSystemModel::columnCount ( const <a href="qmodelindex.html">QModelIndex</a> & <i>parent</i> = QModelIndex() ) const <tt> [virtual]</tt></h3>
<p>Reimplemented from <a href="qabstractitemmodel.html#columnCount">QAbstractItemModel::columnCount</a>().</p>
<a name="//apple_ref/cpp/instm/QFileSystemModel/data"></a>
<h3 class="fn"><a name="data"></a><a href="qvariant.html">QVariant</a> QFileSystemModel::data ( const <a href="qmodelindex.html">QModelIndex</a> & <i>index</i>, int <i>role</i> = Qt::DisplayRole ) const <tt> [virtual]</tt></h3>
<p>Reimplemented from <a href="qabstractitemmodel.html#data">QAbstractItemModel::data</a>().</p>
<p>See also <a href="qfilesystemmodel.html#setData">setData</a>().</p>
<a name="//apple_ref/cpp/instm/QFileSystemModel/dropMimeData"></a>
<h3 class="fn"><a name="dropMimeData"></a>bool QFileSystemModel::dropMimeData ( const <a href="qmimedata.html">QMimeData</a> * <i>data</i>, <a href="qt.html#DropAction-enum">Qt::DropAction</a> <i>action</i>, int <i>row</i>, int <i>column</i>, const <a href="qmodelindex.html">QModelIndex</a> & <i>parent</i> ) <tt> [virtual]</tt></h3>
<p>Reimplemented from <a href="qabstractitemmodel.html#dropMimeData">QAbstractItemModel::dropMimeData</a>().</p>
<p>Handles the <i>data</i> supplied by a drag and drop operation that ended with the given <i>action</i> over the row in the model specified by the <i>row</i> and <i>column</i> and by the <i>parent</i> index.</p>
<p>See also <a href="qfilesystemmodel.html#supportedDropActions">supportedDropActions</a>().</p>
<a name="//apple_ref/cpp/instm/QFileSystemModel/event"></a>
<h3 class="fn"><a name="event"></a>bool QFileSystemModel::event ( <a href="qevent.html">QEvent</a> * <i>event</i> ) <tt> [virtual protected]</tt></h3>
<p>Reimplemented from <a href="qobject.html#event">QObject::event</a>().</p>
<a name="//apple_ref/cpp/instm/QFileSystemModel/fetchMore"></a>
<h3 class="fn"><a name="fetchMore"></a>void QFileSystemModel::fetchMore ( const <a href="qmodelindex.html">QModelIndex</a> & <i>parent</i> ) <tt> [virtual]</tt></h3>
<p>Reimplemented from <a href="qabstractitemmodel.html#fetchMore">QAbstractItemModel::fetchMore</a>().</p>
<a name="//apple_ref/cpp/instm/QFileSystemModel/fileIcon"></a>
<h3 class="fn"><a name="fileIcon"></a><a href="qicon.html">QIcon</a> QFileSystemModel::fileIcon ( const <a href="qmodelindex.html">QModelIndex</a> & <i>index</i> ) const</h3>
<p>Returns the icon for the item stored in the model under the given <i>index</i>.</p>
<a name="//apple_ref/cpp/instm/QFileSystemModel/fileInfo"></a>
<h3 class="fn"><a name="fileInfo"></a><a href="qfileinfo.html">QFileInfo</a> QFileSystemModel::fileInfo ( const <a href="qmodelindex.html">QModelIndex</a> & <i>index</i> ) const</h3>
<p>Returns the <a href="qfileinfo.html">QFileInfo</a> for the item stored in the model under the given <i>index</i>.</p>
<a name="//apple_ref/cpp/instm/QFileSystemModel/fileName"></a>
<h3 class="fn"><a name="fileName"></a><a href="qstring.html">QString</a> QFileSystemModel::fileName ( const <a href="qmodelindex.html">QModelIndex</a> & <i>index</i> ) const</h3>
<p>Returns the file name for the item stored in the model under the given <i>index</i>.</p>
<a name="//apple_ref/cpp/instm/QFileSystemModel/filePath"></a>
<h3 class="fn"><a name="filePath"></a><a href="qstring.html">QString</a> QFileSystemModel::filePath ( const <a href="qmodelindex.html">QModelIndex</a> & <i>index</i> ) const</h3>
<p>Returns the path of the item stored in the model under the <i>index</i> given.</p>
<a name="//apple_ref/cpp/instm/QFileSystemModel/fileRenamed"></a>
<h3 class="fn"><a name="fileRenamed"></a>void QFileSystemModel::fileRenamed ( const <a href="qstring.html">QString</a> & <i>path</i>, const <a href="qstring.html">QString</a> & <i>oldName</i>, const <a href="qstring.html">QString</a> & <i>newName</i> ) <tt> [signal]</tt></h3>
<p>This signal is emitted whenever a file with the <i>oldName</i> is successfully renamed to <i>newName</i>. The file is located in in the directory <i>path</i>.</p>
<a name="//apple_ref/cpp/instm/QFileSystemModel/filter"></a>
<h3 class="fn"><a name="filter"></a><a href="qdir.html#Filter-enum">QDir::Filters</a> QFileSystemModel::filter () const</h3>
<p>Returns the filter specified for the directory model.</p>
<p>If a filter has not been set, the default filter is <a href="qdir.html#Filter-enum">QDir::AllEntries</a> | <a href="qdir.html#Filter-enum">QDir::NoDotAndDotDot</a> | <a href="qdir.html#Filter-enum">QDir::AllDirs</a>.</p>
<p>See also <a href="qfilesystemmodel.html#setFilter">setFilter</a>() and <a href="qdir.html#Filter-enum">QDir::Filters</a>.</p>
<a name="//apple_ref/cpp/instm/QFileSystemModel/flags"></a>
<h3 class="fn"><a name="flags"></a><a href="qt.html#ItemFlag-enum">Qt::ItemFlags</a> QFileSystemModel::flags ( const <a href="qmodelindex.html">QModelIndex</a> & <i>index</i> ) const <tt> [virtual]</tt></h3>
<p>Reimplemented from <a href="qabstractitemmodel.html#flags">QAbstractItemModel::flags</a>().</p>
<a name="//apple_ref/cpp/instm/QFileSystemModel/hasChildren"></a>
<h3 class="fn"><a name="hasChildren"></a>bool QFileSystemModel::hasChildren ( const <a href="qmodelindex.html">QModelIndex</a> & <i>parent</i> = QModelIndex() ) const <tt> [virtual]</tt></h3>
<p>Reimplemented from <a href="qabstractitemmodel.html#hasChildren">QAbstractItemModel::hasChildren</a>().</p>
<a name="//apple_ref/cpp/instm/QFileSystemModel/headerData"></a>
<h3 class="fn"><a name="headerData"></a><a href="qvariant.html">QVariant</a> QFileSystemModel::headerData ( int <i>section</i>, <a href="qt.html#Orientation-enum">Qt::Orientation</a> <i>orientation</i>, int <i>role</i> = Qt::DisplayRole ) const <tt> [virtual]</tt></h3>
<p>Reimplemented from <a href="qabstractitemmodel.html#headerData">QAbstractItemModel::headerData</a>().</p>
<a name="//apple_ref/cpp/instm/QFileSystemModel/iconProvider"></a>
<h3 class="fn"><a name="iconProvider"></a><a href="qfileiconprovider.html">QFileIconProvider</a> * QFileSystemModel::iconProvider () const</h3>
<p>Returns the file icon provider for this directory model.</p>
<p>See also <a href="qfilesystemmodel.html#setIconProvider">setIconProvider</a>().</p>
<a name="//apple_ref/cpp/instm/QFileSystemModel/index"></a>
<h3 class="fn"><a name="index"></a><a href="qmodelindex.html">QModelIndex</a> QFileSystemModel::index ( int <i>row</i>, int <i>column</i>, const <a href="qmodelindex.html">QModelIndex</a> & <i>parent</i> = QModelIndex() ) const <tt> [virtual]</tt></h3>
<p>Reimplemented from <a href="qabstractitemmodel.html#index">QAbstractItemModel::index</a>().</p>
<h3 class="fn"><a name="index-2"></a><a href="qmodelindex.html">QModelIndex</a> QFileSystemModel::index ( const <a href="qstring.html">QString</a> & <i>path</i>, int <i>column</i> = 0 ) const</h3>
<p>This is an overloaded function.</p>
<p>Returns the model item index for the given <i>path</i> and <i>column</i>.</p>
<a name="//apple_ref/cpp/instm/QFileSystemModel/isDir"></a>
<h3 class="fn"><a name="isDir"></a>bool QFileSystemModel::isDir ( const <a href="qmodelindex.html">QModelIndex</a> & <i>index</i> ) const</h3>
<p>Returns true if the model item <i>index</i> represents a directory; otherwise returns false.</p>
<a name="//apple_ref/cpp/instm/QFileSystemModel/lastModified"></a>
<h3 class="fn"><a name="lastModified"></a><a href="qdatetime.html">QDateTime</a> QFileSystemModel::lastModified ( const <a href="qmodelindex.html">QModelIndex</a> & <i>index</i> ) const</h3>
<p>Returns the date and time when <i>index</i> was last modified.</p>
<a name="//apple_ref/cpp/instm/QFileSystemModel/mimeData"></a>
<h3 class="fn"><a name="mimeData"></a><a href="qmimedata.html">QMimeData</a> * QFileSystemModel::mimeData ( const <a href="qmodelindex.html#QModelIndexList-typedef">QModelIndexList</a> & <i>indexes</i> ) const <tt> [virtual]</tt></h3>
<p>Reimplemented from <a href="qabstractitemmodel.html#mimeData">QAbstractItemModel::mimeData</a>().</p>
<p>Returns an object that contains a serialized description of the specified <i>indexes</i>. The format used to describe the items corresponding to the indexes is obtained from the <a href="qfilesystemmodel.html#mimeTypes">mimeTypes</a>() function.</p>
<p>If the list of indexes is empty, 0 is returned rather than a serialized empty list.</p>
<a name="//apple_ref/cpp/instm/QFileSystemModel/mimeTypes"></a>
<h3 class="fn"><a name="mimeTypes"></a><a href="qstringlist.html">QStringList</a> QFileSystemModel::mimeTypes () const <tt> [virtual]</tt></h3>
<p>Reimplemented from <a href="qabstractitemmodel.html#mimeTypes">QAbstractItemModel::mimeTypes</a>().</p>
<p>Returns a list of MIME types that can be used to describe a list of items in the model.</p>
<a name="//apple_ref/cpp/instm/QFileSystemModel/mkdir"></a>
<h3 class="fn"><a name="mkdir"></a><a href="qmodelindex.html">QModelIndex</a> QFileSystemModel::mkdir ( const <a href="qmodelindex.html">QModelIndex</a> & <i>parent</i>, const <a href="qstring.html">QString</a> & <i>name</i> )</h3>
<p>Create a directory with the <i>name</i> in the <i>parent</i> model index.</p>
<a name="//apple_ref/cpp/instm/QFileSystemModel/myComputer"></a>
<h3 class="fn"><a name="myComputer"></a><a href="qvariant.html">QVariant</a> QFileSystemModel::myComputer ( int <i>role</i> = Qt::DisplayRole ) const</h3>
<p>Returns the data stored under the given <i>role</i> for the item "My Computer".</p>
<p>See also <a href="qt.html#ItemDataRole-enum">Qt::ItemDataRole</a>.</p>
<a name="//apple_ref/cpp/instm/QFileSystemModel/nameFilters"></a>
<h3 class="fn"><a name="nameFilters"></a><a href="qstringlist.html">QStringList</a> QFileSystemModel::nameFilters () const</h3>
<p>Returns a list of filters applied to the names in the model.</p>
<p>See also <a href="qfilesystemmodel.html#setNameFilters">setNameFilters</a>().</p>
<a name="//apple_ref/cpp/instm/QFileSystemModel/parent"></a>
<h3 class="fn"><a name="parent"></a><a href="qmodelindex.html">QModelIndex</a> QFileSystemModel::parent ( const <a href="qmodelindex.html">QModelIndex</a> & <i>index</i> ) const <tt> [virtual]</tt></h3>
<p>Reimplemented from <a href="qabstractitemmodel.html#parent">QAbstractItemModel::parent</a>().</p>
<a name="//apple_ref/cpp/instm/QFileSystemModel/permissions"></a>
<h3 class="fn"><a name="permissions"></a><a href="qfile.html#Permission-enum">QFile::Permissions</a> QFileSystemModel::permissions ( const <a href="qmodelindex.html">QModelIndex</a> & <i>index</i> ) const</h3>
<p>Returns the complete OR-ed together combination of <a href="qfile.html#Permission-enum">QFile::Permission</a> for the <i>index</i>.</p>
<a name="//apple_ref/cpp/instm/QFileSystemModel/remove"></a>
<h3 class="fn"><a name="remove"></a>bool QFileSystemModel::remove ( const <a href="qmodelindex.html">QModelIndex</a> & <i>index</i> ) const</h3>
<p>Removes the model item <i>index</i> from the file system model and <b>deletes the corresponding file from the file system</b>, returning true if successful. If the item cannot be removed, false is returned.</p>
<p><b>Warning:</b> This function deletes files from the file system; it does <b>not</b> move them to a location where they can be recovered.</p>
<p>See also <a href="qfilesystemmodel.html#rmdir">rmdir</a>().</p>
<a name="//apple_ref/cpp/instm/QFileSystemModel/rmdir"></a>
<h3 class="fn"><a name="rmdir"></a>bool QFileSystemModel::rmdir ( const <a href="qmodelindex.html">QModelIndex</a> & <i>index</i> ) const</h3>
<p>Removes the directory corresponding to the model item <i>index</i> in the file system model and <b>deletes the corresponding directory from the file system</b>, returning true if successful. If the directory cannot be removed, false is returned.</p>
<p><b>Warning:</b> This function deletes directories from the file system; it does <b>not</b> move them to a location where they can be recovered.</p>
<p>See also <a href="qfilesystemmodel.html#remove">remove</a>().</p>
<a name="//apple_ref/cpp/instm/QFileSystemModel/rootDirectory"></a>
<h3 class="fn"><a name="rootDirectory"></a><a href="qdir.html">QDir</a> QFileSystemModel::rootDirectory () const</h3>
<p>The currently set directory</p>
<p>See also <a href="qfilesystemmodel.html#rootPath">rootPath</a>().</p>
<a name="//apple_ref/cpp/instm/QFileSystemModel/rootPath"></a>
<h3 class="fn"><a name="rootPath"></a><a href="qstring.html">QString</a> QFileSystemModel::rootPath () const</h3>
<p>The currently set root path</p>
<p>See also <a href="qfilesystemmodel.html#setRootPath">setRootPath</a>() and <a href="qfilesystemmodel.html#rootDirectory">rootDirectory</a>().</p>
<a name="//apple_ref/cpp/instm/QFileSystemModel/rootPathChanged"></a>
<h3 class="fn"><a name="rootPathChanged"></a>void QFileSystemModel::rootPathChanged ( const <a href="qstring.html">QString</a> & <i>newPath</i> ) <tt> [signal]</tt></h3>
<p>This signal is emitted whenever the root path has been changed to a <i>newPath</i>.</p>
<a name="//apple_ref/cpp/instm/QFileSystemModel/rowCount"></a>
<h3 class="fn"><a name="rowCount"></a>int QFileSystemModel::rowCount ( const <a href="qmodelindex.html">QModelIndex</a> & <i>parent</i> = QModelIndex() ) const <tt> [virtual]</tt></h3>
<p>Reimplemented from <a href="qabstractitemmodel.html#rowCount">QAbstractItemModel::rowCount</a>().</p>
<a name="//apple_ref/cpp/instm/QFileSystemModel/setData"></a>
<h3 class="fn"><a name="setData"></a>bool QFileSystemModel::setData ( const <a href="qmodelindex.html">QModelIndex</a> & <i>idx</i>, const <a href="qvariant.html">QVariant</a> & <i>value</i>, int <i>role</i> = Qt::EditRole ) <tt> [virtual]</tt></h3>
<p>Reimplemented from <a href="qabstractitemmodel.html#setData">QAbstractItemModel::setData</a>().</p>
<p>See also <a href="qfilesystemmodel.html#data">data</a>().</p>
<a name="//apple_ref/cpp/instm/QFileSystemModel/setFilter"></a>
<h3 class="fn"><a name="setFilter"></a>void QFileSystemModel::setFilter ( <a href="qdir.html#Filter-enum">QDir::Filters</a> <i>filters</i> )</h3>
<p>Sets the directory model's filter to that specified by <i>filters</i>.</p>
<p>Note that the filter you set should always include the <a href="qdir.html#Filter-enum">QDir::AllDirs</a> enum value, otherwise <a href="qfilesystemmodel.html">QFileSystemModel</a> won't be able to read the directory structure.</p>
<p>See also <a href="qfilesystemmodel.html#filter">filter</a>() and <a href="qdir.html#Filter-enum">QDir::Filters</a>.</p>
<a name="//apple_ref/cpp/instm/QFileSystemModel/setIconProvider"></a>
<h3 class="fn"><a name="setIconProvider"></a>void QFileSystemModel::setIconProvider ( <a href="qfileiconprovider.html">QFileIconProvider</a> * <i>provider</i> )</h3>
<p>Sets the <i>provider</i> of file icons for the directory model.</p>
<p>See also <a href="qfilesystemmodel.html#iconProvider">iconProvider</a>().</p>
<a name="//apple_ref/cpp/instm/QFileSystemModel/setNameFilters"></a>
<h3 class="fn"><a name="setNameFilters"></a>void QFileSystemModel::setNameFilters ( const <a href="qstringlist.html">QStringList</a> & <i>filters</i> )</h3>
<p>Sets the name <i>filters</i> to apply against the existing files.</p>
<p>See also <a href="qfilesystemmodel.html#nameFilters">nameFilters</a>().</p>
<a name="//apple_ref/cpp/instm/QFileSystemModel/setRootPath"></a>
<h3 class="fn"><a name="setRootPath"></a><a href="qmodelindex.html">QModelIndex</a> QFileSystemModel::setRootPath ( const <a href="qstring.html">QString</a> & <i>newPath</i> )</h3>
<p>Sets the directory that is being watched by the model to <i>newPath</i> by installing a <a href="qfilesystemwatcher.html">file system watcher</a> on it. Any changes to files and directories within this directory will be reflected in the model.</p>
<p>If the path is changed, the <a href="qfilesystemmodel.html#rootPathChanged">rootPathChanged</a>() signal will be emitted.</p>
<p><b>Note:</b> This function does not change the structure of the model or modify the data available to views. In other words, the "root" of the model is <i>not</i> changed to include only files and directories within the directory specified by <i>newPath</i> in the file system.</p>
<p>See also <a href="qfilesystemmodel.html#rootPath">rootPath</a>().</p>
<a name="//apple_ref/cpp/instm/QFileSystemModel/size"></a>
<h3 class="fn"><a name="size"></a><a href="qtglobal.html#qint64-typedef">qint64</a> QFileSystemModel::size ( const <a href="qmodelindex.html">QModelIndex</a> & <i>index</i> ) const</h3>
<p>Returns the size in bytes of <i>index</i>. If the file does not exist, 0 is returned.</p>
<a name="//apple_ref/cpp/instm/QFileSystemModel/sort"></a>
<h3 class="fn"><a name="sort"></a>void QFileSystemModel::sort ( int <i>column</i>, <a href="qt.html#SortOrder-enum">Qt::SortOrder</a> <i>order</i> = Qt::AscendingOrder ) <tt> [virtual]</tt></h3>
<p>Reimplemented from <a href="qabstractitemmodel.html#sort">QAbstractItemModel::sort</a>().</p>
<a name="//apple_ref/cpp/instm/QFileSystemModel/supportedDropActions"></a>
<h3 class="fn"><a name="supportedDropActions"></a><a href="qt.html#DropAction-enum">Qt::DropActions</a> QFileSystemModel::supportedDropActions () const <tt> [virtual]</tt></h3>
<p>Reimplemented from <a href="qabstractitemmodel.html#supportedDropActions">QAbstractItemModel::supportedDropActions</a>().</p>
<a name="//apple_ref/cpp/instm/QFileSystemModel/timerEvent"></a>
<h3 class="fn"><a name="timerEvent"></a>void QFileSystemModel::timerEvent ( <a href="qtimerevent.html">QTimerEvent</a> * <i>event</i> ) <tt> [virtual protected]</tt></h3>
<p>Reimplemented from <a href="qobject.html#timerEvent">QObject::timerEvent</a>().</p>
<a name="//apple_ref/cpp/instm/QFileSystemModel/type"></a>
<h3 class="fn"><a name="type"></a><a href="qstring.html">QString</a> QFileSystemModel::type ( const <a href="qmodelindex.html">QModelIndex</a> & <i>index</i> ) const</h3>
<p>Returns the type of file <i>index</i> such as "Directory" or "JPEG file".</p>
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