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<li class="level1"><a href="#public-functions">Public Functions</a></li>
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<h1 class="title">Q3IconDrag Class Reference</h1>
<!-- $$$Q3IconDrag-brief -->
<p>The Q3IconDrag class supports drag and drop operations within a <a href="q3iconview.html">Q3IconView</a>. <a href="#details">More...</a></p>
<!-- @@@Q3IconDrag -->
<pre class="cpp"> <span class="preprocessor">#include <Q3IconDrag></span></pre><p><b>This class is part of the Qt 3 support library.</b> It is provided to keep old source code working. We strongly advise against using it in new code. See <a href="porting4.html">Porting to Qt 4</a> for more information.</p>
<p><b>Inherits: </b><a href="q3dragobject.html">Q3DragObject</a>.</p>
<ul>
<li><a href="q3icondrag-members.html">List of all members, including inherited members</a></li>
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<a name="public-functions"></a>
<h2>Public Functions</h2>
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<tr><td class="memItemLeft rightAlign topAlign"> </td><td class="memItemRight bottomAlign"><b><a href="q3icondrag.html#Q3IconDrag">Q3IconDrag</a></b> ( QWidget * <i>dragSource</i>, const char * <i>name</i> = 0 )</td></tr>
<tr><td class="memItemLeft rightAlign topAlign"> virtual </td><td class="memItemRight bottomAlign"><b><a href="q3icondrag.html#dtor.Q3IconDrag">~Q3IconDrag</a></b> ()</td></tr>
<tr><td class="memItemLeft rightAlign topAlign"> void </td><td class="memItemRight bottomAlign"><b><a href="q3icondrag.html#append">append</a></b> ( const Q3IconDragItem & <i>i</i>, const QRect & <i>pr</i>, const QRect & <i>tr</i> )</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 rightAlign topAlign"> virtual QByteArray </td><td class="memItemRight bottomAlign"><b><a href="q3icondrag.html#encodedData">encodedData</a></b> ( const char * <i>mime</i> ) const</td></tr>
<tr><td class="memItemLeft rightAlign topAlign"> virtual const char * </td><td class="memItemRight bottomAlign"><b><a href="q3icondrag.html#format">format</a></b> ( int <i>i</i> ) const</td></tr>
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<li class="fn">9 public functions inherited from <a href="q3dragobject.html#public-functions">Q3DragObject</a></li>
<li class="fn">29 public functions inherited from <a href="qobject.html#public-functions">QObject</a></li>
<li class="fn">3 public functions inherited from <a href="qmimesource.html#public-functions">QMimeSource</a></li>
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<h2>Static Public Members</h2>
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<tr><td class="memItemLeft rightAlign topAlign"> bool </td><td class="memItemRight bottomAlign"><b><a href="q3icondrag.html#canDecode">canDecode</a></b> ( QMimeSource * <i>e</i> )</td></tr>
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<li class="fn">1 static public member inherited from <a href="q3dragobject.html#static-public-members">Q3DragObject</a></li>
<li class="fn">7 static public members inherited from <a href="qobject.html#static-public-members">QObject</a></li>
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<h3>Additional Inherited Members</h3>
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<li class="fn">1 property inherited from <a href="qobject.html#properties">QObject</a></li>
<li class="fn">1 public slot inherited from <a href="qobject.html#public-slots">QObject</a></li>
<li class="fn">1 signal inherited from <a href="qobject.html#signals">QObject</a></li>
<li class="fn">1 protected function inherited from <a href="q3dragobject.html#protected-functions">Q3DragObject</a></li>
<li class="fn">8 protected functions inherited from <a href="qobject.html#protected-functions">QObject</a></li>
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<a name="details"></a>
<!-- $$$Q3IconDrag-description -->
<div class="descr">
<h2>Detailed Description</h2>
<p>The Q3IconDrag class supports drag and drop operations within a <a href="q3iconview.html">Q3IconView</a>.</p>
<p>A Q3IconDrag object is used to maintain information about the positions of dragged items and the data associated with them. Q3IconViews are able to use this information to paint the dragged items in the correct positions. Internally, Q3IconDrag stores the data associated with drag items in <a href="q3icondragitem.html">Q3IconDragItem</a> objects.</p>
<p>If you want to use the extended drag and drop functionality of <a href="q3iconview.html">Q3IconView</a>, create a Q3IconDrag object in a reimplementation of <a href="q3iconview.html#dragObject">Q3IconView::dragObject</a>(). Then create a <a href="q3icondragitem.html">Q3IconDragItem</a> for each item which should be dragged, set the data it represents with <a href="q3icondragitem.html#setData">Q3IconDragItem::setData</a>(), and add each <a href="q3icondragitem.html">Q3IconDragItem</a> to the drag object using <a href="q3icondrag.html#append">append</a>().</p>
<p>The data in Q3IconDragItems is stored in a <a href="qbytearray.html">QByteArray</a> and is mime-typed (see <a href="qmimesource.html" class="obsolete">QMimeSource</a> and the <a href="http://qt.nokia.com/doc/dnd.html">Drag and Drop</a> overview). If you want to use your own mime-types derive a class from Q3IconDrag and reimplement <a href="q3icondrag.html#format">format</a>(), <a href="q3icondrag.html#encodedData">encodedData</a>() and <a href="q3icondrag.html#canDecode">canDecode</a>().</p>
<p>The fileiconview example program demonstrates the use of the Q3IconDrag class including subclassing and reimplementing dragObject(), <a href="q3icondrag.html#format">format</a>(), <a href="q3icondrag.html#encodedData">encodedData</a>() and <a href="q3icondrag.html#canDecode">canDecode</a>().</p>
</div>
<p><b>See also </b><a href="qmimesource.html#format">QMimeSource::format</a>().</p>
<!-- @@@Q3IconDrag -->
<div class="func">
<h2>Member Function Documentation</h2>
<!-- $$$Q3IconDrag[overload1]$$$Q3IconDragQWidget*constchar* -->
<h3 class="fn"><a name="Q3IconDrag"></a>Q3IconDrag::<span class="name">Q3IconDrag</span> ( <span class="type"><a href="qwidget.html">QWidget</a></span> * <i>dragSource</i>, const <span class="type">char</span> * <i>name</i> = 0 )</h3>
<p>Constructs a drag object called <i>name</i>, which is a child of <i>dragSource</i>.</p>
<p>Note that the drag object will be deleted when <i>dragSource</i> is deleted.</p>
<!-- @@@Q3IconDrag -->
<!-- $$$~Q3IconDrag[overload1]$$$~Q3IconDrag -->
<h3 class="fn"><a name="dtor.Q3IconDrag"></a>Q3IconDrag::<span class="name">~Q3IconDrag</span> ()<tt> [virtual]</tt></h3>
<p>Destructor.</p>
<!-- @@@~Q3IconDrag -->
<!-- $$$append[overload1]$$$appendconstQ3IconDragItem&constQRect&constQRect& -->
<h3 class="fn"><a name="append"></a><span class="type">void</span> Q3IconDrag::<span class="name">append</span> ( const <span class="type"><a href="q3icondragitem.html">Q3IconDragItem</a></span> & <i>i</i>, const <span class="type"><a href="qrect.html">QRect</a></span> & <i>pr</i>, const <span class="type"><a href="qrect.html">QRect</a></span> & <i>tr</i> )</h3>
<p>Append the <a href="q3icondragitem.html" class="compat">Q3IconDragItem</a>, <i>i</i>, to the <a href="q3icondrag.html" class="compat">Q3IconDrag</a> object's list of items. You must also supply the geometry of the pixmap, <i>pr</i>, and the textual caption, <i>tr</i>.</p>
<p><b>See also </b><a href="q3icondragitem.html" class="compat">Q3IconDragItem</a>.</p>
<!-- @@@append -->
<!-- $$$canDecode[overload1]$$$canDecodeQMimeSource* -->
<h3 class="fn"><a name="canDecode"></a><span class="type">bool</span> Q3IconDrag::<span class="name">canDecode</span> ( <span class="type"><a href="qmimesource.html">QMimeSource</a></span> * <i>e</i> )<tt> [static]</tt></h3>
<p>Returns true if <i>e</i> can be decoded by the <a href="q3icondrag.html" class="compat">Q3IconDrag</a>, otherwise return false.</p>
<!-- @@@canDecode -->
<!-- $$$encodedData[overload1]$$$encodedDataconstchar* -->
<h3 class="fn"><a name="encodedData"></a><span class="type"><a href="qbytearray.html">QByteArray</a></span> Q3IconDrag::<span class="name">encodedData</span> ( const <span class="type">char</span> * <i>mime</i> ) const<tt> [virtual]</tt></h3>
<p>Reimplemented from <a href="qmimesource.html#encodedData">QMimeSource::encodedData</a>().</p>
<p>Returns the encoded data of the drag object if <i>mime</i> is application/x-qiconlist.</p>
<!-- @@@encodedData -->
<!-- $$$format[overload1]$$$formatint -->
<h3 class="fn"><a name="format"></a>const <span class="type">char</span> * Q3IconDrag::<span class="name">format</span> ( <span class="type">int</span> <i>i</i> ) const<tt> [virtual]</tt></h3>
<p>Reimplemented from <a href="qmimesource.html#format">QMimeSource::format</a>().</p>
<!-- @@@format -->
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