QwtCompass *CompassGrid::createCompass( int pos )
{
int c;
QPalette palette0;
for ( c = 0; c < QPalette::NColorRoles; c++ )
palette0.setColor( ( QPalette::ColorRole )c, QColor() );
palette0.setColor( QPalette::Base,
palette().color( backgroundRole() ).light( 120 ) );
palette0.setColor( QPalette::WindowText,
palette0.color( QPalette::Base ) );
QwtCompass *compass = new QwtCompass( this );
compass->setLineWidth( 4 );
compass->setFrameShadow(
pos <= 2 ? QwtCompass::Sunken : QwtCompass::Raised );
switch( pos )
{
case 0:
{
/*
A compass with a rose and no needle. Scale and rose are
rotating.
*/
compass->setMode( QwtCompass::RotateScale );
QwtSimpleCompassRose *rose = new QwtSimpleCompassRose( 16, 2 );
rose->setWidth( 0.15 );
compass->setRose( rose );
break;
}
case 1:
{
/*
A windrose, with a scale indicating the main directions only
*/
QMap<double, QString> map;
map.insert( 0.0, "N" );
map.insert( 90.0, "E" );
map.insert( 180.0, "S" );
map.insert( 270.0, "W" );
compass->setLabelMap( map );
QwtSimpleCompassRose *rose = new QwtSimpleCompassRose( 4, 1 );
compass->setRose( rose );
compass->setNeedle(
new QwtCompassWindArrow( QwtCompassWindArrow::Style2 ) );
compass->setValue( 60.0 );
break;
}
case 2:
{
/*
A compass with a rotating needle in darkBlue. Shows
a ticks for each degree.
*/
palette0.setColor( QPalette::Base, Qt::darkBlue );
palette0.setColor( QPalette::WindowText,
QColor( Qt::darkBlue ).dark( 120 ) );
palette0.setColor( QPalette::Text, Qt::white );
compass->setScaleComponents(
QwtAbstractScaleDraw::Ticks | QwtAbstractScaleDraw::Labels );
compass->setScaleTicks( 1, 1, 3 );
compass->setScale( 36, 5, 0 );
compass->setNeedle(
new QwtCompassMagnetNeedle( QwtCompassMagnetNeedle::ThinStyle ) );
compass->setValue( 220.0 );
break;
}
case 3:
{
/*
A compass without a frame, showing numbers as tick labels.
The origin is at 220.0
*/
palette0.setColor( QPalette::Base,
palette().color( backgroundRole() ) );
palette0.setColor( QPalette::WindowText, Qt::blue );
compass->setLineWidth( 0 );
compass->setScaleComponents( QwtAbstractScaleDraw::Backbone |
QwtAbstractScaleDraw::Ticks | QwtAbstractScaleDraw::Labels );
compass->setScaleTicks( 0, 0, 3 );
QMap<double, QString> map;
for ( double d = 0.0; d < 360.0; d += 60.0 )
{
QString label;
label.sprintf( "%.0f", d );
map.insert( d, label );
}
compass->setLabelMap( map );
compass->setScale( 36, 5, 0 );
compass->setNeedle( new QwtDialSimpleNeedle( QwtDialSimpleNeedle::Ray,
true, Qt::white ) );
compass->setOrigin( 220.0 );
compass->setValue( 20.0 );
break;
}
case 4:
{
/*
A compass showing another needle
*/
compass->setScaleComponents(
QwtAbstractScaleDraw::Ticks | QwtAbstractScaleDraw::Labels );
compass->setScaleTicks( 0, 0, 3 );
compass->setNeedle( new QwtCompassMagnetNeedle(
QwtCompassMagnetNeedle::TriangleStyle, Qt::white, Qt::red ) );
compass->setValue( 220.0 );
break;
}
case 5:
{
/*
A compass with a yellow on black ray
*/
palette0.setColor( QPalette::WindowText, Qt::black );
compass->setNeedle( new QwtDialSimpleNeedle( QwtDialSimpleNeedle::Ray,
false, Qt::yellow ) );
compass->setValue( 315.0 );
break;
}
}
QPalette newPalette = compass->palette();
for ( c = 0; c < QPalette::NColorRoles; c++ )
{
const QPalette::ColorRole colorRole = ( QPalette::ColorRole ) c;
if ( palette0.color( colorRole ).isValid() )
newPalette.setColor( colorRole, palette0.color( colorRole ) );
}
for ( int i = 0; i < QPalette::NColorGroups; i++ )
{
QPalette::ColorGroup colorGroup = ( QPalette::ColorGroup )i;
const QColor light =
newPalette.color( colorGroup, QPalette::Base ).light( 170 );
const QColor dark = newPalette.color( colorGroup, QPalette::Base ).dark( 170 );
const QColor mid = compass->frameShadow() == QwtDial::Raised
? newPalette.color( colorGroup, QPalette::Base ).dark( 110 )
: newPalette.color( colorGroup, QPalette::Base ).light( 110 );
newPalette.setColor( colorGroup, QPalette::Dark, dark );
newPalette.setColor( colorGroup, QPalette::Mid, mid );
newPalette.setColor( colorGroup, QPalette::Light, light );
}
compass->setPalette( newPalette );
return compass;
}
QwtCompass *DataWidget::createCompass(int pos)
{
int c;
Palette colorGroup;
for ( c = 0; c < Palette::NColorRoles; c++ )
colorGroup.setColor((Palette::ColorRole)c, QColor());
#if QT_VERSION < 0x040000
colorGroup.setColor(Palette::Base, backgroundColor().light(120));
#else
colorGroup.setColor(Palette::Base,
palette().color(backgroundRole()).light(120));
#endif
colorGroup.setColor(Palette::Foreground,
colorGroup.color(Palette::Base));
QwtCompass *compass = new QwtCompass(this);
compass->setLineWidth(4);
compass->setFrameShadow(
pos <= 2 ? QwtCompass::Sunken : QwtCompass::Raised);
switch(pos)
{
case 0:
{
/*
A windrose, with a scale indicating the main directions only
*/
QMap<double, QString> map;
map.insert(0.0, "N");
map.insert(90.0, "E");
map.insert(180.0, "S");
map.insert(270.0, "W");
compass->setLabelMap(map);
QwtSimpleCompassRose *rose = new QwtSimpleCompassRose(4, 1);
compass->setRose(rose);
compass->setNeedle(
new QwtCompassWindArrow(QwtCompassWindArrow::Style2));
compass->setValue(60.0);
break;
}
case 1:
{
/*
A compass showing another needle
*/
QMap<double, QString> map;
map.insert(0.0, "");
map.insert(90.0, "");
map.insert(180.0, "");
map.insert(270.0, "");
compass->setLabelMap(map);
compass->setScaleOptions(QwtDial::ScaleTicks | QwtDial::ScaleLabel);
compass->setScaleTicks(0, 0, 3);
compass->setNeedle(new QwtCompassMagnetNeedle(
QwtCompassMagnetNeedle::TriangleStyle, Qt::white, Qt::red));
compass->setValue(220.0);
break;
}
}
QPalette newPalette = compass->palette();
for ( c = 0; c < Palette::NColorRoles; c++ )
{
if ( colorGroup.color((Palette::ColorRole)c).isValid() )
{
for ( int cg = 0; cg < QPalette::NColorGroups; cg++ )
{
newPalette.setColor(
(QPalette::ColorGroup)cg,
(Palette::ColorRole)c,
colorGroup.color((Palette::ColorRole)c));
}
}
}
for ( int i = 0; i < QPalette::NColorGroups; i++ )
{
QPalette::ColorGroup cg = (QPalette::ColorGroup)i;
const QColor light =
newPalette.color(cg, Palette::Base).light(170);
const QColor dark = newPalette.color(cg, Palette::Base).dark(170);
const QColor mid = compass->frameShadow() == QwtDial::Raised
? newPalette.color(cg, Palette::Base).dark(110)
: newPalette.color(cg, Palette::Base).light(110);
newPalette.setColor(cg, Palette::Dark, dark);
newPalette.setColor(cg, Palette::Mid, mid);
newPalette.setColor(cg, Palette::Light, light);
}
compass->setPalette(newPalette);
return compass;
}