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/****************************************************************
**
** Implementation of LCDRange class, Qt tutorial 12
**
****************************************************************/
#include "lcdrange.h"
#include <qslider.h>
#include <qlcdnumber.h>
#include <qlabel.h>
#include <qlayout.h>
LCDRange::LCDRange( QWidget *parent, const char *name )
: QWidget( parent, name )
{
init();
}
LCDRange::LCDRange( const char *s, QWidget *parent, const char *name )
: QWidget( parent, name )
{
init();
setText( s );
}
void LCDRange::init()
{
QLCDNumber *lcd = new QLCDNumber( 2, this, "lcd" );
slider = new QSlider( Horizontal, this, "slider" );
slider->setRange( 0, 99 );
slider->setValue( 0 );
label = new QLabel( " ", this, "label" );
label->setAlignment( AlignCenter );
connect( slider, SIGNAL(valueChanged(int)),
lcd, SLOT(display(int)) );
connect( slider, SIGNAL(valueChanged(int)),
SIGNAL(valueChanged(int)) );
setFocusProxy( slider );
QVBoxLayout * l = new QVBoxLayout( this );
l->addWidget( lcd, 1 );
l->addWidget( slider );
l->addWidget( label );
}
int LCDRange::value() const
{
return slider->value();
}
const char *LCDRange::text() const
{
return label->text();
}
void LCDRange::setValue( int value )
{
slider->setValue( value );
}
void LCDRange::setRange( int minVal, int maxVal )
{
if ( minVal < 0 || maxVal > 99 || minVal > maxVal ) {
qWarning( "LCDRange::setRange(%d,%d)\n"
"\tRange must be 0..99\n"
"\tand minVal must not be greater than maxVal",
minVal, maxVal );
return;
}
slider->setRange( minVal, maxVal );
}
void LCDRange::setText( const char *s )
{
label->setText( s );
}
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