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Breadcrumbs go here --> <li><a href="modules.html">Modules</a></li> <li>Qt3SupportLight</li> <li>Q3Button</li> </ul> </div> <div class="toolbuttons toolblock"> <ul> <li id="smallA" class="t_button">A</li> <li id="medA" class="t_button active">A</li> <li id="bigA" class="t_button">A</li> <li id="print" class="t_button"><a href="javascript:this.print();"> <span>Print</span></a></li> </ul> </div> </div> <div class="content mainContent"> <div class="toc"> <h3><a name="toc">Contents</a></h3> <ul> <li class="level1"><a href="#public-functions">Public Functions</a></li> <li class="level1"><a href="#protected-functions">Protected Functions</a></li> <li class="level1"><a href="#details">Detailed Description</a></li> </ul> </div> <h1 class="title">Q3Button Class Reference</h1> <!-- $$$Q3Button-brief --> <p>The Q3Button class is a compatibility base class of button widgets <a href="#details">More...</a></p> <!-- @@@Q3Button --> <pre class="cpp"> <span class="preprocessor">#include <Q3Button></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#qbutton">Porting to Qt 4</a> for more information.</p> <p><b>Inherits: </b><a href="qabstractbutton.html">QAbstractButton</a>.</p> <ul> <li><a href="q3button-members.html">List of all members, including inherited members</a></li> </ul> <a name="public-functions"></a> <h2>Public Functions</h2> <table class="alignedsummary"> <tr><td class="memItemLeft rightAlign topAlign"> </td><td class="memItemRight bottomAlign"><b><a href="q3button.html#Q3Button">Q3Button</a></b> ( QWidget * <i>parent</i> = 0, const char * <i>name</i> = 0, Qt::WindowFlags <i>f</i> = 0 )</td></tr> <tr><td class="memItemLeft rightAlign topAlign"> </td><td class="memItemRight bottomAlign"><b><a href="q3button.html#dtor.Q3Button">~Q3Button</a></b> ()</td></tr> </table> <ul> <li class="fn">21 public functions inherited from <a href="qabstractbutton.html#public-functions">QAbstractButton</a></li> <li class="fn">221 public functions inherited from <a href="qwidget.html#public-functions">QWidget</a></li> <li class="fn">29 public functions inherited from <a href="qobject.html#public-functions">QObject</a></li> <li class="fn">13 public functions inherited from <a href="qpaintdevice.html#public-functions">QPaintDevice</a></li> </ul> <a name="protected-functions"></a> <h2>Protected Functions</h2> <table class="alignedsummary"> <tr><td class="memItemLeft rightAlign topAlign"> virtual void </td><td class="memItemRight bottomAlign"><b><a href="q3button.html#drawButton">drawButton</a></b> ( QPainter * <i>painter</i> )</td></tr> <tr><td class="memItemLeft rightAlign topAlign"> virtual void </td><td class="memItemRight bottomAlign"><b><a href="q3button.html#drawButtonLabel">drawButtonLabel</a></b> ( QPainter * <i>painter</i> )</td></tr> </table> <a name="reimplemented-protected-functions"></a> <h2>Reimplemented Protected Functions</h2> <table class="alignedsummary"> <tr><td class="memItemLeft rightAlign topAlign"> virtual void </td><td class="memItemRight bottomAlign"><b><a href="q3button.html#paintEvent">paintEvent</a></b> ( QPaintEvent * <i>event</i> )</td></tr> </table> <ul> <li class="fn">14 protected functions inherited from <a href="qabstractbutton.html#protected-functions">QAbstractButton</a></li> <li class="fn">37 protected functions inherited from <a href="qwidget.html#protected-functions">QWidget</a></li> <li class="fn">8 protected functions inherited from <a href="qobject.html#protected-functions">QObject</a></li> <li class="fn">1 protected function inherited from <a href="qpaintdevice.html#protected-functions">QPaintDevice</a></li> </ul> <h3>Additional Inherited Members</h3> <ul> <li class="fn">11 properties inherited from <a href="qabstractbutton.html#properties">QAbstractButton</a></li> <li class="fn">58 properties inherited from <a href="qwidget.html#properties">QWidget</a></li> <li class="fn">1 property inherited from <a href="qobject.html#properties">QObject</a></li> <li class="fn">5 public slots inherited from <a href="qabstractbutton.html#public-slots">QAbstractButton</a></li> <li class="fn">19 public slots inherited from <a href="qwidget.html#public-slots">QWidget</a></li> <li class="fn">1 public slot inherited from <a href="qobject.html#public-slots">QObject</a></li> <li class="fn">4 signals inherited from <a href="qabstractbutton.html#signals">QAbstractButton</a></li> <li class="fn">1 signal inherited from <a href="qwidget.html#signals">QWidget</a></li> <li class="fn">1 signal inherited from <a href="qobject.html#signals">QObject</a></li> <li class="fn">4 static public members inherited from <a href="qwidget.html#static-public-members">QWidget</a></li> <li class="fn">7 static public members inherited from <a href="qobject.html#static-public-members">QObject</a></li> <li class="fn">1 protected slot inherited from <a href="qwidget.html#protected-slots">QWidget</a></li> </ul> <a name="details"></a> <!-- $$$Q3Button-description --> <div class="descr"> <h2>Detailed Description</h2> <p>The Q3Button class is a compatibility base class of button widgets</p> <p><b>In new code, use <a href="qabstractbutton.html">QAbstractButton</a>.</b></p> <p>To subclass Q3Button, you must reimplement at least <a href="q3button.html#drawButton">drawButton</a>() (to draw the button's outline) and <a href="q3button.html#drawButtonLabel">drawButtonLabel</a>() (to draw its text or pixmap). It is generally advisable to reimplement <a href="qwidget.html#sizeHint-prop">sizeHint</a>() as well, and sometimes <a href="qabstractbutton.html#hitButton">hitButton</a>() (to determine whether a button press is within the button).</p> </div> <!-- @@@Q3Button --> <div class="func"> <h2>Member Function Documentation</h2> <!-- $$$Q3Button[overload1]$$$Q3ButtonQWidget*constchar*Qt::WindowFlags --> <h3 class="fn"><a name="Q3Button"></a>Q3Button::<span class="name">Q3Button</span> ( <span class="type"><a href="qwidget.html">QWidget</a></span> * <i>parent</i> = 0, const <span class="type">char</span> * <i>name</i> = 0, <span class="type"><a href="qt.html#WindowType-enum">Qt::WindowFlags</a></span> <i>f</i> = 0 )</h3> <p>Constructs a standard button called <i>name</i> with parent <i>parent</i>, using the widget flags <i>f</i>.</p> <!-- @@@Q3Button --> <!-- $$$~Q3Button[overload1]$$$~Q3Button --> <h3 class="fn"><a name="dtor.Q3Button"></a>Q3Button::<span class="name">~Q3Button</span> ()</h3> <p>Destroys the button.</p> <!-- @@@~Q3Button --> <!-- $$$drawButton[overload1]$$$drawButtonQPainter* --> <h3 class="fn"><a name="drawButton"></a><span class="type">void</span> Q3Button::<span class="name">drawButton</span> ( <span class="type"><a href="qpainter.html">QPainter</a></span> * <i>painter</i> )<tt> [virtual protected]</tt></h3> <p>Draws the button on the given <i>painter</i>. The default implementation does nothing.</p> <p>This virtual function is reimplemented by subclasses to draw real buttons. At some point, these reimplementations should call <a href="q3button.html#drawButtonLabel">drawButtonLabel</a>().</p> <p><b>See also </b><a href="q3button.html#drawButtonLabel">drawButtonLabel</a>() and <a href="q3button.html#paintEvent">paintEvent</a>().</p> <!-- @@@drawButton --> <!-- $$$drawButtonLabel[overload1]$$$drawButtonLabelQPainter* --> <h3 class="fn"><a name="drawButtonLabel"></a><span class="type">void</span> Q3Button::<span class="name">drawButtonLabel</span> ( <span class="type"><a href="qpainter.html">QPainter</a></span> * <i>painter</i> )<tt> [virtual protected]</tt></h3> <p>Draws the button text or pixmap on the given <i>painter</i>.</p> <p>This virtual function is reimplemented by subclasses to draw real buttons. It is invoked by <a href="q3button.html#drawButton">drawButton</a>().</p> <p><b>See also </b><a href="q3button.html#drawButton">drawButton</a>() and <a href="q3button.html#paintEvent">paintEvent</a>().</p> <!-- @@@drawButtonLabel --> <!-- $$$paintEvent[overload1]$$$paintEventQPaintEvent* --> <h3 class="fn"><a name="paintEvent"></a><span class="type">void</span> Q3Button::<span class="name">paintEvent</span> ( <span class="type"><a href="qpaintevent.html">QPaintEvent</a></span> * <i>event</i> )<tt> [virtual protected]</tt></h3> <p>Reimplemented from <a href="qwidget.html#paintEvent">QWidget::paintEvent</a>().</p> <p>Handles paint events, received in <i>event</i>, for buttons. Small and typically complex buttons are painted double-buffered to reduce flicker. The actually drawing is done in the virtual functions <a href="q3button.html#drawButton">drawButton</a>() and <a href="q3button.html#drawButtonLabel">drawButtonLabel</a>().</p> <p><b>See also </b><a href="q3button.html#drawButton">drawButton</a>() and <a href="q3button.html#drawButtonLabel">drawButtonLabel</a>().</p> <!-- @@@paintEvent --> </div> </div> </div> </div> <div class="ft"> <span></span> </div> </div> <div class="footer"> <p> <acronym title="Copyright">©</acronym> 2013 Digia Plc and/or its subsidiaries. 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