void QgsMarkerSymbolV2::setDataDefinedAngle( const QgsDataDefined& dd )
{
const double symbolRotation = angle();
for ( QgsSymbolLayerV2List::iterator it = mLayers.begin(); it != mLayers.end(); ++it )
{
QgsMarkerSymbolLayerV2* layer = static_cast<QgsMarkerSymbolLayerV2 *>( *it );
if ( dd.hasDefaultValues() )
{
layer->removeDataDefinedProperty( "angle" );
}
else
{
if ( qgsDoubleNear( layer->angle(), symbolRotation ) )
{
layer->setDataDefinedProperty( "angle", new QgsDataDefined( dd ) );
}
else
{
QgsDataDefined* rotatedDD = rotateWholeSymbol( layer->angle() - symbolRotation, dd );
layer->setDataDefinedProperty( "angle", rotatedDD );
}
}
}
}
void QgsMarkerSymbolV2::setAngle( double ang )
{
double origAngle = angle();
double angleDiff = ang - origAngle;
for ( QgsSymbolLayerV2List::iterator it = mLayers.begin(); it != mLayers.end(); ++it )
{
QgsMarkerSymbolLayerV2* layer = ( QgsMarkerSymbolLayerV2* ) * it;
layer->setAngle( layer->angle() + angleDiff );
}
}