void
FeatureNode::setStyle(const Style& style)
{
// Try to compare the styles and see if we can get away with not compiling the geometry again.
Style a = _style;
Style b = style;
// If the only thing that has changed is the AltitudeSymbol, we don't need to worry about rebuilding the entire geometry again.
a.remove<AltitudeSymbol>();
b.remove<AltitudeSymbol>();
if (a.getConfig().toJSON() == b.getConfig().toJSON())
{
_needsRebuild = false;
}
else
{
_needsRebuild = true;
}
_style = style;
build();
}
Style::Style(const Style& rhs, const osg::CopyOp& op) :
_name ( rhs._name ),
_symbols ( rhs._symbols ),
_origType( rhs._origType ),
_origData( rhs._origData ),
_uri ( rhs._uri )
{
if ( op.getCopyFlags() == osg::CopyOp::SHALLOW_COPY )
{
_symbols = rhs._symbols;
}
else
{
_symbols.clear();
mergeConfig( rhs.getConfig(false) );
}
}
Style
Style::combineWith( const Style& rhs ) const
{
// start by deep-cloning this style.
Config conf = getConfig( false );
Style newStyle( conf );
// next, merge in the symbology from the other style.
newStyle.mergeConfig( rhs.getConfig(false) );
if ( !this->empty() && !rhs.empty() )
newStyle.setName( _name + std::string(":") + rhs.getName() );
else if ( !this->empty() && rhs.empty() )
newStyle.setName( _name );
else if ( this->empty() && !rhs.empty() )
newStyle.setName( rhs.getName() );
else
newStyle.setName( _name );
return newStyle;
}