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