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93 lines
3.1 KiB
93 lines
3.1 KiB
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
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<html>
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<title>t9/cannon.cpp Example File</title>
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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="qpainter-h.html">ntqpainter.h</a>>
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<a name="f41"></a>CannonField::CannonField( <a href="ntqwidget.html">TQWidget</a> *parent, const char *name )
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: <a href="ntqwidget.html">TQWidget</a>( parent, name )
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{
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ang = 45;
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<a href="ntqwidget.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="ntqwidget.html#repaint">repaint</a>();
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emit angleChanged( ang );
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}
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void CannonField::<a href="ntqwidget.html#paintEvent">paintEvent</a>( <a href="qpaintevent.html">TQPaintEvent</a> * )
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{
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<a href="ntqpainter.html">TQPainter</a> p( this );
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p.<a href="ntqpainter.html#setBrush">setBrush</a>( blue );
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p.<a href="ntqpainter.html#setPen">setPen</a>( NoPen );
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p.<a href="ntqpainter.html#translate">translate</a>( 0, rect().bottom() );
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p.<a href="ntqpainter.html#drawPie">drawPie</a>( TQRect(-35, -35, 70, 70), 0, 90*16 );
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p.<a href="ntqpainter.html#rotate">rotate</a>( -ang );
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p.<a href="ntqpainter.html#drawRect">drawRect</a>( TQRect(33, -4, 15, 8) );
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}
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TQSizePolicy CannonField::<a href="ntqwidget.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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<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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