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tqt3/doc/html/t10-lcdrange-cpp.html

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<pre>/****************************************************************
**
** Implementation of LCDRange class, TQt tutorial 8
**
****************************************************************/
#include "lcdrange.h"
#include &lt;<a href="qslider-h.html">ntqslider.h</a>&gt;
#include &lt;<a href="qlcdnumber-h.html">ntqlcdnumber.h</a>&gt;
<a name="f44"></a>LCDRange::LCDRange( <a href="ntqwidget.html">TQWidget</a> *parent, const char *name )
: <a href="ntqvbox.html">TQVBox</a>( parent, name )
{
<a href="ntqlcdnumber.html">TQLCDNumber</a> *lcd = new <a href="ntqlcdnumber.html">TQLCDNumber</a>( 2, this, "lcd" );
slider = new <a href="ntqslider.html">TQSlider</a>( Horizontal, this, "slider" );
slider-&gt;<a href="ntqrangecontrol.html#setRange">setRange</a>( 0, 99 );
slider-&gt;<a href="ntqslider.html#setValue">setValue</a>( 0 );
<a href="ntqobject.html#connect">connect</a>( slider, SIGNAL(<a href="ntqslider.html#valueChanged">valueChanged</a>(int)),
lcd, SLOT(<a href="ntqlcdnumber.html#display">display</a>(int)) );
<a href="ntqobject.html#connect">connect</a>( slider, SIGNAL(<a href="ntqslider.html#valueChanged">valueChanged</a>(int)),
SIGNAL(valueChanged(int)) );
<a href="ntqwidget.html#setFocusProxy">setFocusProxy</a>( slider );
}
int <a name="f45"></a>LCDRange::value() const
{
return slider-&gt;<a href="ntqslider.html#value">value</a>();
}
void <a name="f46"></a>LCDRange::setValue( int value )
{
slider-&gt;<a href="ntqslider.html#setValue">setValue</a>( value );
}
void <a name="f47"></a>LCDRange::setRange( int minVal, int maxVal )
{
if ( minVal &lt; 0 || maxVal &gt; 99 || minVal &gt; maxVal ) {
<a href="ntqapplication.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="ntqrangecontrol.html#setRange">setRange</a>( minVal, maxVal );
}
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