void QgsSingleSymbolRendererV2::setRotationField( const QString& fieldOrExpression )
{
if ( mSymbol->type() == QgsSymbolV2::Marker )
{
QgsMarkerSymbolV2 * s = static_cast<QgsMarkerSymbolV2 *>( mSymbol.data() );
s->setDataDefinedAngle( QgsDataDefined( fieldOrExpression ) );
}
}
void QgsFeatureRendererV2::convertSymbolRotation( QgsSymbolV2 * symbol, const QString & field )
{
if ( symbol->type() == QgsSymbolV2::Marker )
{
QgsMarkerSymbolV2 * s = static_cast<QgsMarkerSymbolV2 *>( symbol );
const QgsDataDefined dd(( s->angle()
? QString::number( s->angle() ) + " + "
: QString() ) + field );
s->setDataDefinedAngle( dd );
}
}
void QgsMapToolRotatePointSymbols::createPixmapItem( QgsMarkerSymbolV2* markerSymbol )
{
if ( !mCanvas )
{
return;
}
//get the image that is used for that symbol, but without point rotation
QImage pointImage;
if ( markerSymbol )
{
QgsSymbolV2* clone = markerSymbol->clone();
QgsMarkerSymbolV2* markerClone = static_cast<QgsMarkerSymbolV2*>( clone );
markerClone->setDataDefinedAngle( QgsDataDefined() );
pointImage = markerClone->bigSymbolPreviewImage();
delete clone;
}
mRotationItem = new QgsPointRotationItem( mCanvas );
mRotationItem->setSymbol( pointImage );
}
