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#include <qlabel.h>
#include <qlayout.h>
#include <qwt_wheel.h>
#include <qwt_thermo.h>
#include <qwt_scale_engine.h>
#include <qwt_transform.h>
#include <qwt_color_map.h>
#include "wheelbox.h"
WheelBox::WheelBox( Qt::Orientation orientation,
int type, QWidget *parent ):
QWidget( parent )
{
QWidget *box = createBox( orientation, type );
d_label = new QLabel( this );
d_label->setAlignment( Qt::AlignHCenter | Qt::AlignTop );
QBoxLayout *layout = new QVBoxLayout( this );
layout->addWidget( box );
layout->addWidget( d_label );
setNum( d_wheel->value() );
connect( d_wheel, SIGNAL( valueChanged( double ) ),
this, SLOT( setNum( double ) ) );
}
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();
d_thermo->setOrientation( orientation );
if ( orientation == Qt::Horizontal )
{
d_thermo->setScalePosition( QwtThermo::LeadingScale );
d_wheel->setOrientation( Qt::Vertical );
}
else
{
d_thermo->setScalePosition( QwtThermo::TrailingScale );
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:
{
d_wheel->setRange( -100, 300 );
d_wheel->setInverted( true );
QwtLinearColorMap *colorMap = new QwtLinearColorMap();
colorMap->setColorInterval( Qt::darkCyan, Qt::yellow );
d_thermo->setColorMap( colorMap );
d_wheel->setValue( 243 );
break;
}
case 5:
{
d_thermo->setFillBrush( Qt::darkCyan );
d_thermo->setAlarmBrush( Qt::magenta );
d_thermo->setAlarmLevel( 60.0 );
break;
}
case 6:
{
d_thermo->setOriginMode( QwtThermo::OriginMinimum );
d_thermo->setFillBrush( QBrush( "DarkSlateBlue" ) );
d_thermo->setAlarmBrush( QBrush( "DarkOrange" ) );
d_thermo->setAlarmLevel( 60.0 );
break;
}
case 7:
{
d_wheel->setRange( -100, 100 );
d_thermo->setOriginMode( QwtThermo::OriginCustom );
d_thermo->setOrigin( 0.0 );
d_thermo->setFillBrush( Qt::darkBlue );
break;
}
}
double min = d_wheel->minimum();
double max = d_wheel->maximum();
if ( d_wheel->isInverted() )
qSwap( min, max );
d_thermo->setScale( min, max );
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;
}
void WheelBox::setNum( double v )
{
QString text;
text.setNum( v, 'f', 2 );
d_label->setText( text );
}
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