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92 lines
3.0 KiB
92 lines
3.0 KiB
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
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<title>t9/cannon.cpp Example File</title>
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<font color="#004faf">Home</font></a>
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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>t9/cannon.cpp Example File</h1>
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<pre>/****************************************************************
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**
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** Implementation CannonField class, TQt tutorial 9
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**
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****************************************************************/
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#include "cannon.h"
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#include <<a href="tqpainter-h.html">tqpainter.h</a>>
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<a name="f41"></a>CannonField::CannonField( <a href="tqwidget.html">TQWidget</a> *parent, const char *name )
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: <a href="tqwidget.html">TQWidget</a>( parent, name )
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{
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ang = 45;
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<a href="tqwidget.html#setPalette">setPalette</a>( TQPalette( TQColor( 250, 250, 200) ) );
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}
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void <a name="f42"></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="tqwidget.html#repaint">repaint</a>();
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emit angleChanged( ang );
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}
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void CannonField::<a href="tqwidget.html#paintEvent">paintEvent</a>( <a href="tqpaintevent.html">TQPaintEvent</a> * )
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{
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<a href="tqpainter.html">TQPainter</a> p( this );
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p.<a href="tqpainter.html#setBrush">setBrush</a>( blue );
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p.<a href="tqpainter.html#setPen">setPen</a>( NoPen );
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p.<a href="tqpainter.html#translate">translate</a>( 0, rect().bottom() );
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p.<a href="tqpainter.html#drawPie">drawPie</a>( TQRect(-35, -35, 70, 70), 0, 90*16 );
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p.<a href="tqpainter.html#rotate">rotate</a>( -ang );
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p.<a href="tqpainter.html#drawRect">drawRect</a>( TQRect(33, -4, 15, 8) );
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}
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TQSizePolicy CannonField::<a href="tqwidget.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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