355 lines
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355 lines
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<h1 class="title">Q3ListBoxItem Class Reference</h1>
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<!-- $$$Q3ListBoxItem-brief -->
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<p>The Q3ListBoxItem class is the base class of all list box items. <a href="#details">More...</a></p>
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<!-- @@@Q3ListBoxItem -->
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<pre class="cpp"> <span class="preprocessor">#include <Q3ListBoxItem></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>
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<p><b>Inherited by: </b><a href="q3listboxpixmap.html">Q3ListBoxPixmap</a> and <a href="q3listboxtext.html">Q3ListBoxText</a>.</p>
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<ul>
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<li><a href="q3listboxitem-members.html">List of all members, including inherited members</a></li>
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</ul>
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<a name="public-functions"></a>
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<h2>Public Functions</h2>
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<table class="alignedsummary">
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<tr><td class="memItemLeft rightAlign topAlign"> </td><td class="memItemRight bottomAlign"><b><a href="q3listboxitem.html#Q3ListBoxItem">Q3ListBoxItem</a></b> ( Q3ListBox * <i>listbox</i> = 0 )</td></tr>
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<tr><td class="memItemLeft rightAlign topAlign"> </td><td class="memItemRight bottomAlign"><b><a href="q3listboxitem.html#Q3ListBoxItem-2">Q3ListBoxItem</a></b> ( Q3ListBox * <i>listbox</i>, Q3ListBoxItem * <i>after</i> )</td></tr>
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<tr><td class="memItemLeft rightAlign topAlign"> virtual </td><td class="memItemRight bottomAlign"><b><a href="q3listboxitem.html#dtor.Q3ListBoxItem">~Q3ListBoxItem</a></b> ()</td></tr>
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<tr><td class="memItemLeft rightAlign topAlign"> bool </td><td class="memItemRight bottomAlign"><b><a href="q3listboxitem.html#current">current</a></b> () const</td></tr>
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<tr><td class="memItemLeft rightAlign topAlign"> virtual int </td><td class="memItemRight bottomAlign"><b><a href="q3listboxitem.html#height">height</a></b> ( const Q3ListBox * <i>lb</i> ) const</td></tr>
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<tr><td class="memItemLeft rightAlign topAlign"> bool </td><td class="memItemRight bottomAlign"><b><a href="q3listboxitem.html#isCurrent">isCurrent</a></b> () const</td></tr>
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<tr><td class="memItemLeft rightAlign topAlign"> bool </td><td class="memItemRight bottomAlign"><b><a href="q3listboxitem.html#isSelectable">isSelectable</a></b> () const</td></tr>
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<tr><td class="memItemLeft rightAlign topAlign"> bool </td><td class="memItemRight bottomAlign"><b><a href="q3listboxitem.html#isSelected">isSelected</a></b> () const</td></tr>
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<tr><td class="memItemLeft rightAlign topAlign"> Q3ListBox * </td><td class="memItemRight bottomAlign"><b><a href="q3listboxitem.html#listBox">listBox</a></b> () const</td></tr>
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<tr><td class="memItemLeft rightAlign topAlign"> Q3ListBoxItem * </td><td class="memItemRight bottomAlign"><b><a href="q3listboxitem.html#next">next</a></b> () const</td></tr>
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<tr><td class="memItemLeft rightAlign topAlign"> virtual const QPixmap * </td><td class="memItemRight bottomAlign"><b><a href="q3listboxitem.html#pixmap">pixmap</a></b> () const</td></tr>
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<tr><td class="memItemLeft rightAlign topAlign"> Q3ListBoxItem * </td><td class="memItemRight bottomAlign"><b><a href="q3listboxitem.html#prev">prev</a></b> () const</td></tr>
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<tr><td class="memItemLeft rightAlign topAlign"> virtual int </td><td class="memItemRight bottomAlign"><b><a href="q3listboxitem.html#rtti">rtti</a></b> () const</td></tr>
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<tr><td class="memItemLeft rightAlign topAlign"> bool </td><td class="memItemRight bottomAlign"><b><a href="q3listboxitem.html#selected">selected</a></b> () const</td></tr>
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<tr><td class="memItemLeft rightAlign topAlign"> void </td><td class="memItemRight bottomAlign"><b><a href="q3listboxitem.html#setSelectable">setSelectable</a></b> ( bool <i>b</i> )</td></tr>
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<tr><td class="memItemLeft rightAlign topAlign"> virtual QString </td><td class="memItemRight bottomAlign"><b><a href="q3listboxitem.html#text">text</a></b> () const</td></tr>
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<tr><td class="memItemLeft rightAlign topAlign"> virtual int </td><td class="memItemRight bottomAlign"><b><a href="q3listboxitem.html#width">width</a></b> ( const Q3ListBox * <i>lb</i> ) const</td></tr>
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</table>
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<a name="protected-functions"></a>
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<h2>Protected Functions</h2>
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<table class="alignedsummary">
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<tr><td class="memItemLeft rightAlign topAlign"> virtual void </td><td class="memItemRight bottomAlign"><b><a href="q3listboxitem.html#paint">paint</a></b> ( QPainter * <i>p</i> ) = 0</td></tr>
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<tr><td class="memItemLeft rightAlign topAlign"> void </td><td class="memItemRight bottomAlign"><b><a href="q3listboxitem.html#setCustomHighlighting">setCustomHighlighting</a></b> ( bool <i>b</i> )</td></tr>
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<tr><td class="memItemLeft rightAlign topAlign"> virtual void </td><td class="memItemRight bottomAlign"><b><a href="q3listboxitem.html#setText">setText</a></b> ( const QString & <i>text</i> )</td></tr>
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</table>
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<a name="details"></a>
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<!-- $$$Q3ListBoxItem-description -->
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<div class="descr">
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<h2>Detailed Description</h2>
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<p>The Q3ListBoxItem class is the base class of all list box items.</p>
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<p>This class is an abstract base class used for all list box items. If you need to insert customized items into a <a href="q3listbox.html">Q3ListBox</a> you must inherit this class and reimplement <a href="q3listboxitem.html#paint">paint</a>(), <a href="q3listboxitem.html#height">height</a>() and <a href="q3listboxitem.html#width">width</a>().</p>
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</div>
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<p><b>See also </b><a href="q3listbox.html">Q3ListBox</a>.</p>
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<!-- @@@Q3ListBoxItem -->
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<div class="func">
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<h2>Member Function Documentation</h2>
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<!-- $$$Q3ListBoxItem[overload1]$$$Q3ListBoxItemQ3ListBox* -->
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<h3 class="fn"><a name="Q3ListBoxItem"></a>Q3ListBoxItem::<span class="name">Q3ListBoxItem</span> ( <span class="type"><a href="q3listbox.html">Q3ListBox</a></span> * <i>listbox</i> = 0 )</h3>
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<p>Constructs an empty list box item in the list box <i>listbox</i>.</p>
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<!-- @@@Q3ListBoxItem -->
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<!-- $$$Q3ListBoxItem$$$Q3ListBoxItemQ3ListBox*Q3ListBoxItem* -->
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<h3 class="fn"><a name="Q3ListBoxItem-2"></a>Q3ListBoxItem::<span class="name">Q3ListBoxItem</span> ( <span class="type"><a href="q3listbox.html">Q3ListBox</a></span> * <i>listbox</i>, <span class="type">Q3ListBoxItem</span> * <i>after</i> )</h3>
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<p>Constructs an empty list box item in the list box <i>listbox</i> and inserts it after the item <i>after</i> or at the beginning if <i>after</i> is 0.</p>
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<!-- @@@Q3ListBoxItem -->
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<!-- $$$~Q3ListBoxItem[overload1]$$$~Q3ListBoxItem -->
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<h3 class="fn"><a name="dtor.Q3ListBoxItem"></a>Q3ListBoxItem::<span class="name">~Q3ListBoxItem</span> ()<tt> [virtual]</tt></h3>
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<p>Destroys the list box item.</p>
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<!-- @@@~Q3ListBoxItem -->
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<!-- $$$current[overload1]$$$current -->
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<h3 class="fn"><a name="current"></a><span class="type">bool</span> Q3ListBoxItem::<span class="name">current</span> () const</h3>
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<p>Use <a href="q3listboxitem.html#isCurrent">isCurrent</a>() instead. Returns true if <a href="q3listboxitem.html#isCurrent">isCurrent</a>() returns true.</p>
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<!-- @@@current -->
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<!-- $$$height[overload1]$$$heightconstQ3ListBox* -->
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<h3 class="fn"><a name="height"></a><span class="type">int</span> Q3ListBoxItem::<span class="name">height</span> ( const <span class="type"><a href="q3listbox.html">Q3ListBox</a></span> * <i>lb</i> ) const<tt> [virtual]</tt></h3>
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<p>Implement this function to return the height of your item. The <i>lb</i> parameter is the same as <a href="q3listboxitem.html#listBox">listBox</a>() and is provided for convenience and compatibility.</p>
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<p>The default implementation returns <a href="qapplication.html#globalStrut-prop">QApplication::globalStrut</a>()'s height.</p>
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<p><b>See also </b><a href="q3listboxitem.html#paint">paint</a>() and <a href="q3listboxitem.html#width">width</a>().</p>
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<!-- @@@height -->
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<!-- $$$isCurrent[overload1]$$$isCurrent -->
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<h3 class="fn"><a name="isCurrent"></a><span class="type">bool</span> Q3ListBoxItem::<span class="name">isCurrent</span> () const</h3>
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<p>Returns true if the item is the current item; otherwise returns false.</p>
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<p><b>See also </b><a href="q3listbox.html#currentItem-prop">Q3ListBox::currentItem</a>(), <a href="q3listbox.html#item">Q3ListBox::item</a>(), and <a href="q3listboxitem.html#isSelected">isSelected</a>().</p>
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<!-- @@@isCurrent -->
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<!-- $$$isSelectable[overload1]$$$isSelectable -->
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<h3 class="fn"><a name="isSelectable"></a><span class="type">bool</span> Q3ListBoxItem::<span class="name">isSelectable</span> () const</h3>
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<p>Returns true if this item is selectable (the default); otherwise returns false.</p>
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<p><b>See also </b><a href="q3listboxitem.html#setSelectable">setSelectable</a>().</p>
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<!-- @@@isSelectable -->
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<!-- $$$isSelected[overload1]$$$isSelected -->
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<h3 class="fn"><a name="isSelected"></a><span class="type">bool</span> Q3ListBoxItem::<span class="name">isSelected</span> () const</h3>
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<p>Returns true if the item is selected; otherwise returns false.</p>
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<p><b>See also </b><a href="q3listbox.html#isSelected">Q3ListBox::isSelected</a>() and <a href="q3listboxitem.html#isCurrent">isCurrent</a>().</p>
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<!-- @@@isSelected -->
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<!-- $$$listBox[overload1]$$$listBox -->
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<h3 class="fn"><a name="listBox"></a><span class="type"><a href="q3listbox.html">Q3ListBox</a></span> * Q3ListBoxItem::<span class="name">listBox</span> () const</h3>
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<p>Returns a pointer to the list box containing this item.</p>
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<!-- @@@listBox -->
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<!-- $$$next[overload1]$$$next -->
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<h3 class="fn"><a name="next"></a><span class="type">Q3ListBoxItem</span> * Q3ListBoxItem::<span class="name">next</span> () const</h3>
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<p>Returns the item that comes after this in the list box. If this is the last item, 0 is returned.</p>
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<p><b>See also </b><a href="q3listboxitem.html#prev">prev</a>().</p>
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<!-- @@@next -->
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<!-- $$$paint[overload1]$$$paintQPainter* -->
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<h3 class="fn"><a name="paint"></a><span class="type">void</span> Q3ListBoxItem::<span class="name">paint</span> ( <span class="type"><a href="qpainter.html">QPainter</a></span> * <i>p</i> )<tt> [pure virtual protected]</tt></h3>
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<p>Implement this function to draw your item. The painter, <i>p</i>, is already open for painting.</p>
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<p><b>See also </b><a href="q3listboxitem.html#height">height</a>() and <a href="q3listboxitem.html#width">width</a>().</p>
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<!-- @@@paint -->
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<!-- $$$pixmap[overload1]$$$pixmap -->
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<h3 class="fn"><a name="pixmap"></a>const <span class="type"><a href="qpixmap.html">QPixmap</a></span> * Q3ListBoxItem::<span class="name">pixmap</span> () const<tt> [virtual]</tt></h3>
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<p>Returns the pixmap associated with the item, or 0 if there isn't one.</p>
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<p>The default implementation returns 0.</p>
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<!-- @@@pixmap -->
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<!-- $$$prev[overload1]$$$prev -->
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<h3 class="fn"><a name="prev"></a><span class="type">Q3ListBoxItem</span> * Q3ListBoxItem::<span class="name">prev</span> () const</h3>
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<p>Returns the item which comes before this in the list box. If this is the first item, 0 is returned.</p>
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<p><b>See also </b><a href="q3listboxitem.html#next">next</a>().</p>
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<!-- @@@prev -->
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<!-- $$$rtti[overload1]$$$rtti -->
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<h3 class="fn"><a name="rtti"></a><span class="type">int</span> Q3ListBoxItem::<span class="name">rtti</span> () const<tt> [virtual]</tt></h3>
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<p>Returns 0.</p>
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<p>Make your derived classes return their own values for rtti(), and you can distinguish between listbox items. You should use values greater than 1000 preferably a large random number, to allow for extensions to this class.</p>
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<!-- @@@rtti -->
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<!-- $$$selected[overload1]$$$selected -->
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<h3 class="fn"><a name="selected"></a><span class="type">bool</span> Q3ListBoxItem::<span class="name">selected</span> () const</h3>
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<p>Use <a href="q3listboxitem.html#isSelected">isSelected</a>() instead. Returns true if <a href="q3listboxitem.html#isSelected">isSelected</a>() returns true.</p>
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<!-- @@@selected -->
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<!-- $$$setCustomHighlighting[overload1]$$$setCustomHighlightingbool -->
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<h3 class="fn"><a name="setCustomHighlighting"></a><span class="type">void</span> Q3ListBoxItem::<span class="name">setCustomHighlighting</span> ( <span class="type">bool</span> <i>b</i> )<tt> [protected]</tt></h3>
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<p>Defines whether the list box item is responsible for drawing itself in a highlighted state when being selected.</p>
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<p>If <i>b</i> is false (the default), the list box will draw some default highlight indicator before calling <a href="q3listboxitem.html#paint">paint</a>().</p>
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<p><b>See also </b><a href="q3listboxitem.html#isSelected">isSelected</a>() and <a href="q3listboxitem.html#paint">paint</a>().</p>
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<!-- @@@setCustomHighlighting -->
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<!-- $$$setSelectable[overload1]$$$setSelectablebool -->
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<h3 class="fn"><a name="setSelectable"></a><span class="type">void</span> Q3ListBoxItem::<span class="name">setSelectable</span> ( <span class="type">bool</span> <i>b</i> )</h3>
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<p>If <i>b</i> is true (the default) then this item can be selected by the user; otherwise this item cannot be selected by the user.</p>
|
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<p><b>See also </b><a href="q3listboxitem.html#isSelectable">isSelectable</a>().</p>
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<!-- @@@setSelectable -->
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<!-- $$$setText[overload1]$$$setTextconstQString& -->
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|
<h3 class="fn"><a name="setText"></a><span class="type">void</span> Q3ListBoxItem::<span class="name">setText</span> ( const <span class="type"><a href="qstring.html">QString</a></span> & <i>text</i> )<tt> [virtual protected]</tt></h3>
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|
<p>Sets the text of the <a href="q3listboxitem.html" class="compat">Q3ListBoxItem</a> to <i>text</i>. This <i>text</i> is also used for sorting. The text is not shown unless explicitly drawn in <a href="q3listboxitem.html#paint">paint</a>().</p>
|
|
<p><b>See also </b><a href="q3listboxitem.html#text">text</a>().</p>
|
|
<!-- @@@setText -->
|
|
<!-- $$$text[overload1]$$$text -->
|
|
<h3 class="fn"><a name="text"></a><span class="type"><a href="qstring.html">QString</a></span> Q3ListBoxItem::<span class="name">text</span> () const<tt> [virtual]</tt></h3>
|
|
<p>Returns the text of the item. This text is also used for sorting.</p>
|
|
<p><b>See also </b><a href="q3listboxitem.html#setText">setText</a>().</p>
|
|
<!-- @@@text -->
|
|
<!-- $$$width[overload1]$$$widthconstQ3ListBox* -->
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|
<h3 class="fn"><a name="width"></a><span class="type">int</span> Q3ListBoxItem::<span class="name">width</span> ( const <span class="type"><a href="q3listbox.html">Q3ListBox</a></span> * <i>lb</i> ) const<tt> [virtual]</tt></h3>
|
|
<p>Reimplement this function to return the width of your item. The <i>lb</i> parameter is the same as <a href="q3listboxitem.html#listBox">listBox</a>() and is provided for convenience and compatibility.</p>
|
|
<p>The default implementation returns <a href="qapplication.html#globalStrut-prop">QApplication::globalStrut</a>()'s width.</p>
|
|
<p><b>See also </b><a href="q3listboxitem.html#paint">paint</a>() and <a href="q3listboxitem.html#height">height</a>().</p>
|
|
<!-- @@@width -->
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