added description of native types to memory provider (to allow adding columns in GUI)

git-svn-id: http://svn.osgeo.org/qgis/trunk/qgis@13334 c8812cc2-4d05-0410-92ff-de0c093fc19c

Author: wonder

src/providers/memory/qgsmemoryprovider.cpp

@@ -47,6 +47,12 @@ QgsMemoryProvider::QgsMemoryProvider( QString uri )
     mWkbType = QGis::WKBUnknown;
 
   mNextFeatureId = 1;
+
+  mNativeTypes
+  << QgsVectorDataProvider::NativeType( tr( "Whole number (integer)" ), "integer", QVariant::Int, 1, 10 )
+  << QgsVectorDataProvider::NativeType( tr( "Decimal number (real)" ), "double", QVariant::Double, 1, 20, 0, 5 )
+  << QgsVectorDataProvider::NativeType( tr( "Text (string)" ), "string", QVariant::String, 1, 255 )
+  ;
 }
 
 QgsMemoryProvider::~QgsMemoryProvider()