sharpetronics/QGIS
1
0
Fork 0
mirror of https://github.com/qgis/QGIS.git synced 2025-02-28 00:17:30 -05:00
Code Issues Packages Projects Releases Wiki Activity

Update also crs transform cache if a crs has been updated

Browse Source
This commit is contained in:
Marco Hugentobler 2013-06-14 13:33:25 +02:00
parent 1962c3c46c
commit b8a2f0c1aa
2 changed files with 25 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

23
src/core/qgscrscache.cpp
View File

@ -57,6 +57,28 @@ const QgsCoordinateTransform* QgsCoordinateTransformCache::transform( const QStr
}
}
void QgsCoordinateTransformCache::invalidateCrs( const QString& crsAuthId )
{
//get keys to remove first
QHash< QPair< QString, QString >, QgsCoordinateTransform* >::iterator it = mTransforms.begin();
QList< QPair< QString, QString > > updateList;
for ( ; it != mTransforms.end(); ++it )
{
if ( it.key().first == crsAuthId || it.key().second == crsAuthId )
{
updateList.append( it.key() );
}
}
//and remove after
QList< QPair< QString, QString > >::const_iterator updateIt = updateList.constBegin();
for ( ; updateIt != updateList.constEnd(); ++updateIt )
{
mTransforms.remove( *updateIt );
}
}
QgsCRSCache* QgsCRSCache::mInstance = 0;
QgsCRSCache* QgsCRSCache::instance()
@ -84,6 +106,7 @@ void QgsCRSCache::updateCRSCache( const QString& authid )
{
mCRS.insert( authid, s );
}
QgsCoordinateTransformCache::instance()->invalidateCrs( authid );
}
const QgsCoordinateReferenceSystem& QgsCRSCache::crsByAuthId( const QString& authid )

2
src/core/qgscrscache.h
View File

@ -34,6 +34,8 @@ class CORE_EXPORT QgsCoordinateTransformCache
@param srcAuthId auth id string of source crs
@param destAuthId auth id string of dest crs*/
const QgsCoordinateTransform* transform( const QString& srcAuthId, const QString& destAuthId );
/**Removes transformations where a changed crs is involved from the cache*/
void invalidateCrs( const QString& crsAuthId );
private:
static QgsCoordinateTransformCache* mInstance;