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authorTimothy Pearson <kb9vqf@pearsoncomputing.net>2011-07-10 15:24:15 -0500
committerTimothy Pearson <kb9vqf@pearsoncomputing.net>2011-07-10 15:24:15 -0500
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+<title>t11/lcdrange.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>t11/lcdrange.cpp Example File</h1>
+
+
+<pre>/****************************************************************
+**
+** Implementation of LCDRange class, Qt tutorial 8
+**
+****************************************************************/
+
+#include "lcdrange.h"
+
+#include &lt;<a href="qslider-h.html">qslider.h</a>&gt;
+#include &lt;<a href="qlcdnumber-h.html">qlcdnumber.h</a>&gt;
+
+<a name="f53"></a>LCDRange::LCDRange( <a href="qwidget.html">QWidget</a> *parent, const char *name )
+ : <a href="qvbox.html">QVBox</a>( parent, name )
+{
+ <a href="qlcdnumber.html">QLCDNumber</a> *lcd = new <a href="qlcdnumber.html">QLCDNumber</a>( 2, this, "lcd" );
+ slider = new <a href="qslider.html">QSlider</a>( Horizontal, this, "slider" );
+ slider-&gt;<a href="qrangecontrol.html#setRange">setRange</a>( 0, 99 );
+ slider-&gt;<a href="qslider.html#setValue">setValue</a>( 0 );
+ <a href="qobject.html#connect">connect</a>( slider, SIGNAL(<a href="qslider.html#valueChanged">valueChanged</a>(int)),
+ lcd, SLOT(<a href="qlcdnumber.html#display">display</a>(int)) );
+ <a href="qobject.html#connect">connect</a>( slider, SIGNAL(<a href="qslider.html#valueChanged">valueChanged</a>(int)),
+ SIGNAL(valueChanged(int)) );
+
+ <a href="qwidget.html#setFocusProxy">setFocusProxy</a>( slider );
+}
+
+int <a name="f54"></a>LCDRange::value() const
+{
+ return slider-&gt;<a href="qslider.html#value">value</a>();
+}
+
+void <a name="f55"></a>LCDRange::setValue( int value )
+{
+ slider-&gt;<a href="qslider.html#setValue">setValue</a>( value );
+}
+
+void <a name="f56"></a>LCDRange::setRange( int minVal, int maxVal )
+{
+ if ( minVal &lt; 0 || maxVal &gt; 99 || minVal &gt; maxVal ) {
+ <a href="qapplication.html#qWarning">qWarning</a>( "LCDRange::setRange(%d,%d)\n"
+ "\tRange must be 0..99\n"
+ "\tand minVal must not be greater than maxVal",
+ minVal, maxVal );
+ return;
+ }
+ slider-&gt;<a href="qrangecontrol.html#setRange">setRange</a>( minVal, maxVal );
+}
+</pre><!-- eof -->
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