103 lines
2.7 KiB
C++
103 lines
2.7 KiB
C++
#include "wheelbox.h"
|
|
#include <qwt_wheel.h>
|
|
#include <qlcdnumber.h>
|
|
#include <qlabel.h>
|
|
#include <qlayout.h>
|
|
#include <qevent.h>
|
|
#include <qapplication.h>
|
|
|
|
class Wheel: public QwtWheel
|
|
{
|
|
public:
|
|
Wheel( WheelBox *parent ):
|
|
QwtWheel( parent )
|
|
{
|
|
setFocusPolicy( Qt::WheelFocus );
|
|
parent->installEventFilter( this );
|
|
}
|
|
|
|
virtual bool eventFilter( QObject *object, QEvent *event )
|
|
{
|
|
if ( event->type() == QEvent::Wheel )
|
|
{
|
|
const QWheelEvent *we = static_cast<QWheelEvent *>( event );
|
|
|
|
QWheelEvent wheelEvent( QPoint( 5, 5 ), we->delta(),
|
|
we->buttons(), we->modifiers(),
|
|
we->orientation() );
|
|
|
|
QApplication::sendEvent( this, &wheelEvent );
|
|
return true;
|
|
}
|
|
return QwtWheel::eventFilter( object, event );
|
|
}
|
|
};
|
|
|
|
WheelBox::WheelBox( const QString &title,
|
|
double min, double max, double stepSize, QWidget *parent ):
|
|
QWidget( parent )
|
|
{
|
|
|
|
d_number = new QLCDNumber( this );
|
|
d_number->setSegmentStyle( QLCDNumber::Filled );
|
|
d_number->setAutoFillBackground( true );
|
|
d_number->setFixedHeight( d_number->sizeHint().height() * 2 );
|
|
d_number->setFocusPolicy( Qt::WheelFocus );
|
|
|
|
QPalette pal( Qt::black );
|
|
pal.setColor( QPalette::WindowText, Qt::green );
|
|
d_number->setPalette( pal );
|
|
|
|
d_wheel = new Wheel( this );
|
|
d_wheel->setOrientation( Qt::Vertical );
|
|
d_wheel->setInverted( true );
|
|
d_wheel->setRange( min, max );
|
|
d_wheel->setSingleStep( stepSize );
|
|
d_wheel->setPageStepCount( 5 );
|
|
d_wheel->setFixedHeight( d_number->height() );
|
|
|
|
d_number->setFocusProxy( d_wheel );
|
|
|
|
QFont font( "Helvetica", 10 );
|
|
font.setBold( true );
|
|
|
|
d_label = new QLabel( title, this );
|
|
d_label->setFont( font );
|
|
|
|
QHBoxLayout *hLayout = new QHBoxLayout;
|
|
hLayout->setContentsMargins( 0, 0, 0, 0 );
|
|
hLayout->setSpacing( 2 );
|
|
hLayout->addWidget( d_number, 10 );
|
|
hLayout->addWidget( d_wheel );
|
|
|
|
QVBoxLayout *vLayout = new QVBoxLayout( this );
|
|
vLayout->addLayout( hLayout, 10 );
|
|
vLayout->addWidget( d_label, 0, Qt::AlignTop | Qt::AlignHCenter );
|
|
|
|
connect( d_wheel, SIGNAL( valueChanged( double ) ),
|
|
d_number, SLOT( display( double ) ) );
|
|
connect( d_wheel, SIGNAL( valueChanged( double ) ),
|
|
this, SIGNAL( valueChanged( double ) ) );
|
|
}
|
|
|
|
void WheelBox::setTheme( const QColor &color )
|
|
{
|
|
d_wheel->setPalette( color );
|
|
}
|
|
|
|
QColor WheelBox::theme() const
|
|
{
|
|
return d_wheel->palette().color( QPalette::Window );
|
|
}
|
|
|
|
void WheelBox::setValue( double value )
|
|
{
|
|
d_wheel->setValue( value );
|
|
d_number->display( value );
|
|
}
|
|
|
|
double WheelBox::value() const
|
|
{
|
|
return d_wheel->value();
|
|
}
|