<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN"> <!-- /home/espenr/tmp/qt-3.3.8-espenr-2499/qt-x11-free-3.3.8/doc/tutorial.doc:1150 --> <html> <head> <meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"> <title>t9/cannon.cpp Example File</title> <style type="text/css"><!-- fn { margin-left: 1cm; text-indent: -1cm; } a:link { color: #004faf; text-decoration: none } a:visited { color: #672967; text-decoration: none } body { background: #ffffff; color: black; } --></style> </head> <body> <table border="0" cellpadding="0" cellspacing="0" width="100%"> <tr bgcolor="#E5E5E5"> <td 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="mainclasses.html"> <font color="#004faf">Main Classes</font></a> | <a href="annotated.html"> <font color="#004faf">Annotated</font></a> | <a href="groups.html"> <font color="#004faf">Grouped Classes</font></a> | <a href="functions.html"> <font color="#004faf">Functions</font></a> </td> <td align="right" valign="center"><img src="logo32.png" align="right" width="64" height="32" border="0"></td></tr></table><h1 align=center>t9/cannon.cpp Example File</h1> <pre>/**************************************************************** ** ** Implementation CannonField class, TQt tutorial 9 ** ****************************************************************/ #include "cannon.h" #include <<a href="qpainter-h.html">ntqpainter.h</a>> <a name="f41"></a>CannonField::CannonField( <a href="ntqwidget.html">TQWidget</a> *parent, const char *name ) : <a href="ntqwidget.html">TQWidget</a>( parent, name ) { ang = 45; <a href="ntqwidget.html#setPalette">setPalette</a>( TQPalette( TQColor( 250, 250, 200) ) ); } void <a name="f42"></a>CannonField::setAngle( int degrees ) { if ( degrees < 5 ) degrees = 5; if ( degrees > 70 ) degrees = 70; if ( ang == degrees ) return; ang = degrees; <a href="ntqwidget.html#repaint">repaint</a>(); emit angleChanged( ang ); } void CannonField::<a href="ntqwidget.html#paintEvent">paintEvent</a>( <a href="qpaintevent.html">TQPaintEvent</a> * ) { <a href="ntqpainter.html">TQPainter</a> p( this ); p.<a href="ntqpainter.html#setBrush">setBrush</a>( blue ); p.<a href="ntqpainter.html#setPen">setPen</a>( NoPen ); p.<a href="ntqpainter.html#translate">translate</a>( 0, rect().bottom() ); p.<a href="ntqpainter.html#drawPie">drawPie</a>( TQRect(-35, -35, 70, 70), 0, 90*16 ); p.<a href="ntqpainter.html#rotate">rotate</a>( -ang ); p.<a href="ntqpainter.html#drawRect">drawRect</a>( TQRect(33, -4, 15, 8) ); } TQSizePolicy CannonField::<a href="ntqwidget.html#sizePolicy">sizePolicy</a>() const { return TQSizePolicy( TQSizePolicy::Expanding, TQSizePolicy::Expanding ); } </pre><!-- eof --> <p><address><hr><div align=center> <table width=100% cellspacing=0 border=0><tr> <td>Copyright © 2007 <a href="troll.html">Trolltech</a><td align=center><a href="trademarks.html">Trademarks</a> <td align=right><div align=right>TQt 3.3.8</div> </table></div></address></body> </html>