void QgsComposerPicture::updateMapRotation()
{
if ( !mRotationMap )
return;
// take map rotation
double rotation = mRotationMap->mapRotation();
// handle true north
switch ( mNorthMode )
{
case GridNorth:
break; // nothing to do
case TrueNorth:
{
QgsPoint center = mRotationMap->currentMapExtent()->center();
QgsCoordinateReferenceSystem crs = mComposition->mapSettings().destinationCrs();
try
{
double bearing = QgsBearingUtils::bearingTrueNorth( crs, center );
rotation += bearing;
}
catch ( QgsException& e )
{
Q_UNUSED( e );
QgsDebugMsg( QString( "Caught exception %1" ).arg( e.what() ) );
}
break;
}
}
rotation += mNorthOffset;
setPictureRotation( rotation );
}
void QgsComposerPicture::setRotation( double r )
{
//kept for compatibility for QGIS2.0 api
setPictureRotation( r );
}
