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88 lines
2.8 KiB
88 lines
2.8 KiB
13 years ago
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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
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<!-- /home/espenr/tmp/qt-3.3.8-espenr-2499/qt-x11-free-3.3.8/doc/tutorial.doc:865 -->
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<html>
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<head>
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<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
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<title>t8/cannon.cpp Example File</title>
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<font color="#004faf">Home</font></a>
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<font color="#004faf">All Classes</font></a>
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</td>
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<td align="right" valign="center"><img src="logo32.png" align="right" width="64" height="32" border="0"></td></tr></table><h1 align=center>t8/cannon.cpp Example File</h1>
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<pre>/****************************************************************
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**
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** Implementation CannonField class, TQt tutorial 8
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**
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****************************************************************/
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#include "cannon.h"
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#include <<a href="qpainter-h.html">qpainter.h</a>>
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<a name="f34"></a>CannonField::CannonField( <a href="qwidget.html">TQWidget</a> *parent, const char *name )
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: <a href="qwidget.html">TQWidget</a>( parent, name )
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{
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ang = 45;
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<a href="qwidget.html#setPalette">setPalette</a>( TQPalette( TQColor( 250, 250, 200) ) );
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}
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void <a name="f35"></a>CannonField::setAngle( int degrees )
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{
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if ( degrees < 5 )
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degrees = 5;
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if ( degrees > 70 )
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degrees = 70;
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if ( ang == degrees )
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return;
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ang = degrees;
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<a href="qwidget.html#repaint">repaint</a>();
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emit angleChanged( ang );
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}
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void CannonField::<a href="qwidget.html#paintEvent">paintEvent</a>( <a href="qpaintevent.html">TQPaintEvent</a> * )
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{
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<a href="qstring.html">TQString</a> s = "Angle = " + TQString::number( ang );
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<a href="qpainter.html">TQPainter</a> p( this );
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p.<a href="qpainter.html#drawText">drawText</a>( 200, 200, s );
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}
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TQSizePolicy CannonField::<a href="qwidget.html#sizePolicy">sizePolicy</a>() const
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{
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return TQSizePolicy( TQSizePolicy::Expanding, TQSizePolicy::Expanding );
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}
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</pre><!-- eof -->
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<p><address><hr><div align=center>
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<table width=100% cellspacing=0 border=0><tr>
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<td>Copyright © 2007
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<a href="troll.html">Trolltech</a><td align=center><a href="trademarks.html">Trademarks</a>
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<td align=right><div align=right>TQt 3.3.8</div>
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</table></div></address></body>
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</html>
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