void QwtDial::initDial()
{
d_data = new PrivateData;
setFocusPolicy( Qt::TabFocus );
QPalette p = palette();
for ( int i = 0; i < QPalette::NColorGroups; i++ )
{
const QPalette::ColorGroup cg = ( QPalette::ColorGroup )i;
// Base: background color of the circle inside the frame.
// WindowText: background color of the circle inside the scale
p.setColor( cg, QPalette::WindowText,
p.color( cg, QPalette::Base ) );
}
setPalette( p );
d_data->scaleDraw = new QwtDialScaleDraw( this );
d_data->scaleDraw->setRadius( 0 );
setScaleArc( 0.0, 360.0 ); // scale as a full circle
setRange( 0.0, 360.0, 1.0, 10 ); // degrees as default
}
SpeedoMeter::SpeedoMeter(QWidget *parent):
QwtDial(parent),
d_label("km/h")
{
setWrapping(false);
setReadOnly(true);
setOrigin(135.0);
setScaleArc(0.0, 270.0);
scaleDraw()->setSpacing(8);
QwtDialSimpleNeedle *needle = new QwtDialSimpleNeedle(
QwtDialSimpleNeedle::Arrow, true, Qt::red,
QColor(Qt::gray).light(130));
setNeedle(needle);
setScaleOptions(ScaleTicks | ScaleLabel);
setScaleTicks(0, 4, 8);
}
Dial::Dial( QWidget * parent )
: QwtDial( parent ),
d_label( "[a.u.]" )
{
setWrapping( false );
setReadOnly( true );
setOrigin( 135.0 );
setScaleArc( 0.0, 270.0 );
scaleDraw()->setSpacing( 8 );
QwtDialSimpleNeedle * needle = new QwtDialSimpleNeedle(
QwtDialSimpleNeedle::Arrow, true, Qt::red,
QColor( Qt::gray ).light( 130 ) );
setNeedle( needle );
setScaleComponents(
QwtAbstractScaleDraw::Ticks | QwtAbstractScaleDraw::Labels );
setScaleTicks( 0, 4, 8 );
}
QwtDial::QwtDial(QWidget* parent, const char* name):
QwtSliderBase(Qt::Horizontal, parent, name,
Qt::WRepaintNoErase|Qt::WResizeNoErase),
d_visibleBackground(FALSE),
d_frameShadow(Sunken),
d_lineWidth(0),
d_mode(RotateNeedle),
d_origin(90.0),
d_minScaleArc(0.0),
d_maxScaleArc(0.0),
d_scaleDraw(0),
d_maxMajIntv(36),
d_maxMinIntv(10),
d_scaleStep(0.0),
d_needle(0)
{
setBackgroundMode(NoBackground);
setFocusPolicy(QWidget::TabFocus);
QPalette p = palette();
for ( int i = 0; i < QPalette::NColorGroups; i++ )
{
const QPalette::ColorGroup cg = (QPalette::ColorGroup)i;
// Base: background color of the circle inside the frame.
// Foreground: background color of the circle inside the scale
p.setColor(cg, QColorGroup::Foreground,
p.color(cg, QColorGroup::Base));
}
setPalette(p);
d_scaleDraw = new QwtDialScaleDraw(this);
d_scaleDraw->setGeometry(0, 0, 0, QwtScaleDraw::Round);
setScaleArc(0.0, 360.0); // scale as a full circle
setRange(0.0, 360.0, 1.0, 10); // degrees as deafult
}