ValueBar( Qt::Orientation orientation,
const QString &text, QWidget *parent, double value = 0.0 ):
QWidget( parent )
{
d_label = new QLabel( text, this );
d_label->setFont( QFont( "Helvetica", 10 ) );
d_thermo = new QwtThermo( this );
d_thermo->setOrientation( orientation );
d_thermo->setScale( 0.0, 100.0 );
d_thermo->setValue( value );
d_thermo->setFont( QFont( "Helvetica", 8 ) );
d_thermo->setPipeWidth( 6 );
d_thermo->setScaleMaxMajor( 6 );
d_thermo->setScaleMaxMinor( 5 );
d_thermo->setFillBrush( Qt::darkMagenta );
#if 0
QwtLinearColorMap *colorMap =
new QwtLinearColorMap( Qt::blue, Qt::red );
colorMap->addColorStop( 0.2, Qt::yellow );
colorMap->addColorStop( 0.3, Qt::cyan );
colorMap->addColorStop( 0.4, Qt::green );
colorMap->addColorStop( 0.5, Qt::magenta );
colorMap->setMode( QwtLinearColorMap::FixedColors );
d_thermo->setColorMap( colorMap );
#endif
QVBoxLayout *layout = new QVBoxLayout( this );
layout->setMargin( 0 );
layout->setSpacing( 0 );
if ( orientation == Qt::Horizontal )
{
d_label->setAlignment( Qt::AlignCenter );
d_thermo->setScalePosition( QwtThermo::LeadingScale );
layout->addWidget( d_label );
layout->addWidget( d_thermo );
}
else
{
d_label->setAlignment( Qt::AlignRight );
d_thermo->setScalePosition( QwtThermo::TrailingScale );
layout->addWidget( d_thermo, 10, Qt::AlignHCenter );
layout->addWidget( d_label, 0 );
}
}
QWidget *WheelBox::createBox(
Qt::Orientation orientation, int type )
{
d_wheel = new QwtWheel();
d_wheel->setValue( 80 );
d_wheel->setWheelWidth( 20 );
d_wheel->setMass( 1.0 );
d_thermo = new QwtThermo();
if ( orientation == Qt::Horizontal )
{
d_thermo->setOrientation( orientation, QwtThermo::TopScale );
d_wheel->setOrientation( Qt::Vertical );
}
else
{
d_thermo->setOrientation( orientation, QwtThermo::LeftScale );
d_wheel->setOrientation( Qt::Horizontal );
}
switch( type )
{
case 0:
{
QwtLinearColorMap *colorMap = new QwtLinearColorMap();
colorMap->setColorInterval( Qt::blue, Qt::red );
d_thermo->setColorMap( colorMap );
break;
}
case 1:
{
QwtLinearColorMap *colorMap = new QwtLinearColorMap();
colorMap->setMode( QwtLinearColorMap::FixedColors );
int idx = 4;
colorMap->setColorInterval( Qt::GlobalColor( idx ),
Qt::GlobalColor( idx + 10 ) );
for ( int i = 1; i < 10; i++ )
{
colorMap->addColorStop( i / 10.0,
Qt::GlobalColor( idx + i ) );
}
d_thermo->setColorMap( colorMap );
break;
}
case 2:
{
d_wheel->setRange( 10, 1000 );
d_wheel->setSingleStep( 1.0 );
d_thermo->setScaleEngine( new QwtLogScaleEngine );
d_thermo->setScaleMaxMinor( 10 );
d_thermo->setFillBrush( Qt::darkCyan );
d_thermo->setAlarmBrush( Qt::magenta );
d_thermo->setAlarmLevel( 500.0 );
d_wheel->setValue( 800 );
break;
}
case 3:
{
d_wheel->setRange( -1000, 1000 );
d_wheel->setSingleStep( 1.0 );
d_wheel->setPalette( QColor( "Tan" ) );
QwtLinearScaleEngine *scaleEngine = new QwtLinearScaleEngine();
scaleEngine->setTransformation( new QwtPowerTransform( 2 ) );
d_thermo->setScaleMaxMinor( 5 );
d_thermo->setScaleEngine( scaleEngine );
QPalette pal = palette();
pal.setColor( QPalette::Base, Qt::darkGray );
pal.setColor( QPalette::ButtonText, QColor( "darkKhaki" ) );
d_thermo->setPalette( pal );
break;
}
case 4:
{
break;
}
}
d_thermo->setScale( d_wheel->minimum(), d_wheel->maximum() );
d_thermo->setValue( d_wheel->value() );
connect( d_wheel, SIGNAL( valueChanged( double ) ),
d_thermo, SLOT( setValue( double ) ) );
QWidget *box = new QWidget();
QBoxLayout *layout;
if ( orientation == Qt::Horizontal )
layout = new QHBoxLayout( box );
else
layout = new QVBoxLayout( box );
layout->addWidget( d_thermo, Qt::AlignCenter );
layout->addWidget( d_wheel );
return box;
}
