<?xml version="1.0" encoding="UTF-8"?> <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml" lang="en_US" xml:lang="en_US"> <head> <title>kio/kfile: KPreviewWidgetBase Class Reference (kio/kfile)</title> <meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> <meta http-equiv="Content-Style-Type" content="text/css" /> <meta http-equiv="pics-label" content='(pics-1.1 "http://www.icra.org/ratingsv02.html" comment "ICRAonline DE v2.0" l gen true for "http://www.kde.org" r (nz 1 vz 1 lz 1 oz 1 cb 1) "http://www.rsac.org/ratingsv01.html" l gen true for "http://www.kde.org" r (n 0 s 0 v 0 l 0))' /> <meta name="trademark" content="KDE e.V." /> <meta name="description" content="K Desktop Environment Homepage, KDE.org" /> <meta name="MSSmartTagsPreventParsing" content="true" /> <meta name="robots" content="all" /> <link rel="shortcut icon" href="../../../favicon.ico" /> <link rel="stylesheet" media="screen" type="text/css" title="APIDOX" href="doxygen.css" /> </head> <body> <div id="nav_header_top" align="right"> <a href="#content" class="doNotDisplay" accesskey="2">Skip to main content ::</a> <a href="../../.."><img id="nav_header_logo" alt="Home" align="left" src="../../../kde_gear_64.png" border="0" /></a> <span class="doNotDisplay">::</span> <div id="nav_header_title" align="left">KDE API Reference</div> </div> <div id="nav_header_bottom" align="right"> <span class="doNotDisplay">:: <a href="#navigation" accesskey="5">Skip to Link Menu</a><br/></span> <div id="nav_header_bottom_right" style="text-align: left;"> / <a href="../../..">API Reference</a> / <a href="../../html/index.html">kio</a> / <a href=".">kfile</a> </div> </div> <table id="main" border="0" cellpadding="0" cellspacing="0" width="100%"> <tr> <td valign="top" class="menuheader" height="0"></td> <td id="contentcolumn" valign="top" rowspan="2" > <div id="content" style="padding-top: 0px;"><div style="width:100%; margin: 0px; padding: 0px;"> <a name="content"></a> <!-- Generated by Doxygen 1.7.4 --> </div> <div class="header"> <div class="summary"> <a href="#pub-slots">Public Slots</a> | <a href="#pub-methods">Public Member Functions</a> | <a href="#pro-methods">Protected Member Functions</a> </div> <div class="headertitle"> <div class="title">KPreviewWidgetBase Class Reference</div> </div> </div> <div class="contents"> <!-- doxytag: class="KPreviewWidgetBase" --><!-- doxytag: inherits="QWidget" --> <p>Abstract baseclass for all preview widgets which shall be used via <a class="el" href="classKFileDialog.html#a066ec89536a517169c71265eeb189d59" title="Adds a preview widget and enters the preview mode.">KFileDialog::setPreviewWidget(const KPreviewWidgetBase *)</a>. <a href="classKPreviewWidgetBase.html#details">More...</a></p> <p><code>#include <<a class="el" href="kpreviewwidgetbase_8h_source.html">kpreviewwidgetbase.h</a>></code></p> <div class="dynheader"> Inheritance diagram for KPreviewWidgetBase:</div> <div class="dyncontent"> <div class="center"> <img src="classKPreviewWidgetBase.png" usemap="#KPreviewWidgetBase_map" alt=""/> <map id="KPreviewWidgetBase_map" name="KPreviewWidgetBase_map"> <area href="qwidget.html" alt="QWidget" shape="rect" coords="0,0,132,24"/> <area href="classKImageFilePreview.html" title="Image preview widget for the file dialog." alt="KImageFilePreview" shape="rect" coords="0,112,132,136"/> </map> </div></div> <p><a href="classKPreviewWidgetBase-members.html">List of all members.</a></p> <table class="memberdecls"> <tr><td colspan="2"><h2><a name="pub-slots"></a> Public Slots</h2></td></tr> <tr><td class="memItemLeft" align="right" valign="top">virtual void </td><td class="memItemRight" valign="bottom"><a class="el" href="classKPreviewWidgetBase.html#a0e606b96f070cb70f5d6255a641fe8e5">showPreview</a> (const KURL &url)=0</td></tr> <tr><td class="memItemLeft" align="right" valign="top">virtual void </td><td class="memItemRight" valign="bottom"><a class="el" href="classKPreviewWidgetBase.html#ae4ebd993820bb613df0c121b4413b471">clearPreview</a> ()=0</td></tr> <tr><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="a73880ec0cb34a5dd8fc58d563b035df4"></a><!-- doxytag: member="KPreviewWidgetBase::supportedMimeTypes" ref="a73880ec0cb34a5dd8fc58d563b035df4" args="() const " --> <a class="elRef" href="qstringlist.html">QStringList</a> </td><td class="memItemRight" valign="bottom"><b>supportedMimeTypes</b> () const </td></tr> <tr><td colspan="2"><h2><a name="pub-methods"></a> Public Member Functions</h2></td></tr> <tr><td class="memItemLeft" align="right" valign="top"> </td><td class="memItemRight" valign="bottom"><a class="el" href="classKPreviewWidgetBase.html#a56fa53f15884d414a39c83cc90358064">KPreviewWidgetBase</a> (<a class="elRef" href="qwidget.html">QWidget</a> *parent, const char *name=0)</td></tr> <tr><td colspan="2"><h2><a name="pro-methods"></a> Protected Member Functions</h2></td></tr> <tr><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="a9f6c503bda02d1877c96af83f1ee948d"></a><!-- doxytag: member="KPreviewWidgetBase::setSupportedMimeTypes" ref="a9f6c503bda02d1877c96af83f1ee948d" args="(const QStringList &mimeTypes)" --> void </td><td class="memItemRight" valign="bottom"><b>setSupportedMimeTypes</b> (const <a class="elRef" href="qstringlist.html">QStringList</a> &mimeTypes)</td></tr> <tr><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="a9af8290c4696da35f6670585d3468906"></a><!-- doxytag: member="KPreviewWidgetBase::virtual_hook" ref="a9af8290c4696da35f6670585d3468906" args="(int, void *)" --> virtual void </td><td class="memItemRight" valign="bottom"><b>virtual_hook</b> (int, void *)</td></tr> </table> <hr/><a name="details" id="details"></a><h2>Detailed Description</h2> <div class="textblock"><p>Abstract baseclass for all preview widgets which shall be used via <a class="el" href="classKFileDialog.html#a066ec89536a517169c71265eeb189d59" title="Adds a preview widget and enters the preview mode.">KFileDialog::setPreviewWidget(const KPreviewWidgetBase *)</a>. </p> <p>Ownership will be transferred to <a class="el" href="classKFileDialog.html" title="Provides a user (and developer) friendly way to select files and directories.">KFileDialog</a>, so you have to create the preview with "new" and let <a class="el" href="classKFileDialog.html" title="Provides a user (and developer) friendly way to select files and directories.">KFileDialog</a> delete it.</p> <p>Just derive your custom preview widget from <a class="el" href="classKPreviewWidgetBase.html" title="Abstract baseclass for all preview widgets which shall be used via KFileDialog::setPreviewWidget(cons...">KPreviewWidgetBase</a> and implement all the pure virtual methods. The slot <a class="el" href="classKPreviewWidgetBase.html#a0e606b96f070cb70f5d6255a641fe8e5" title="This slot is called every time the user selects another file in the file dialog.">showPreview(const KURL &)</a> is called every time the file selection changes.</p> <p>Abstract baseclass for all preview widgets. </p> <dl class="author"><dt><b>Author:</b></dt><dd>Frerich Raabe <<a href="mailto:raabe@kde.org">raabe@kde.org</a>> </dd></dl> <p>Definition at line <a class="el" href="kpreviewwidgetbase_8h_source.html#l00044">44</a> of file <a class="el" href="kpreviewwidgetbase_8h_source.html">kpreviewwidgetbase.h</a>.</p> </div><hr/><h2>Constructor & Destructor Documentation</h2> <a class="anchor" id="a56fa53f15884d414a39c83cc90358064"></a><!-- doxytag: member="KPreviewWidgetBase::KPreviewWidgetBase" ref="a56fa53f15884d414a39c83cc90358064" args="(QWidget *parent, const char *name=0)" --> <div class="memitem"> <div class="memproto"> <table class="memname"> <tr> <td class="memname">KPreviewWidgetBase::KPreviewWidgetBase </td> <td>(</td> <td class="paramtype"><a class="elRef" href="qwidget.html">QWidget</a> * </td> <td class="paramname"><em>parent</em>, </td> </tr> <tr> <td class="paramkey"></td> <td></td> <td class="paramtype">const char * </td> <td class="paramname"><em>name</em> = <code>0</code> </td> </tr> <tr> <td></td> <td>)</td> <td></td><td></td> </tr> </table> </div> <div class="memdoc"> <p>Constructor. </p> <p>Construct the user interface of your preview widget here and pass the <a class="el" href="classKFileDialog.html" title="Provides a user (and developer) friendly way to select files and directories.">KFileDialog</a> this preview widget is going to be used in as the parent.</p> <dl><dt><b>Parameters:</b></dt><dd> <table class="params"> <tr><td class="paramname">parent</td><td>The <a class="el" href="classKFileDialog.html" title="Provides a user (and developer) friendly way to select files and directories.">KFileDialog</a> this preview widget is going to be used in </td></tr> <tr><td class="paramname">name</td><td>The internal name of this object </td></tr> </table> </dd> </dl> <p>Definition at line <a class="el" href="kpreviewwidgetbase_8cpp_source.html#l00020">20</a> of file <a class="el" href="kpreviewwidgetbase_8cpp_source.html">kpreviewwidgetbase.cpp</a>.</p> </div> </div> <hr/><h2>Member Function Documentation</h2> <a class="anchor" id="ae4ebd993820bb613df0c121b4413b471"></a><!-- doxytag: member="KPreviewWidgetBase::clearPreview" ref="ae4ebd993820bb613df0c121b4413b471" args="()=0" --> <div class="memitem"> <div class="memproto"> <table class="memname"> <tr> <td class="memname">virtual void KPreviewWidgetBase::clearPreview </td> <td>(</td> <td class="paramname"></td><td>)</td> <td><code> [pure virtual, slot]</code></td> </tr> </table> </div> <div class="memdoc"> <p>Reimplement this to clear the preview. </p> <p>This is called when e.g. the selection is cleared or when multiple selections exist, or the directory is changed. </p> <p>Implemented in <a class="el" href="classKImageFilePreview.html#a116dcdb0917cd60049d4342e1de8b44f">KImageFilePreview</a>.</p> </div> </div> <a class="anchor" id="a0e606b96f070cb70f5d6255a641fe8e5"></a><!-- doxytag: member="KPreviewWidgetBase::showPreview" ref="a0e606b96f070cb70f5d6255a641fe8e5" args="(const KURL &url)=0" --> <div class="memitem"> <div class="memproto"> <table class="memname"> <tr> <td class="memname">virtual void KPreviewWidgetBase::showPreview </td> <td>(</td> <td class="paramtype">const KURL & </td> <td class="paramname"><em>url</em></td><td>)</td> <td><code> [pure virtual, slot]</code></td> </tr> </table> </div> <div class="memdoc"> <p>This slot is called every time the user selects another file in the file dialog. </p> <p>Implement the stuff necessary to reflect the change here.</p> <dl><dt><b>Parameters:</b></dt><dd> <table class="params"> <tr><td class="paramname">url</td><td>The URL of the currently selected file. </td></tr> </table> </dd> 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