added a method to cache the geometries before start editing. Not wire…

…d in yet

git-svn-id: http://svn.osgeo.org/qgis/trunk@5377 c8812cc2-4d05-0410-92ff-de0c093fc19c

src/gui/qgsvectorlayer.cpp

@@ -942,6 +942,22 @@ QgsVectorLayer::endian_t QgsVectorLayer::endian()
   return (htonl(1) == 1) ? QgsVectorLayer::XDR : QgsVectorLayer::NDR ;
 }
 
+void QgsVectorLayer::cacheGeometries()
+{
+  for(std::map<int, QgsGeometry*>::iterator it = mCachedGeometries.begin(); it != mCachedGeometries.end(); ++it)
+    {
+      delete it->second;
+    }
+  mCachedGeometries.clear();
+  if(dataProvider)
+    {
+      QgsFeature* f = 0;
+      while(f = dataProvider->getNextFeature(false))
+	{
+	  mCachedGeometries.insert(std::make_pair(f->featureId(), f->geometryAndOwnership()));
+	}
+    }
+}
 
 void QgsVectorLayer::table()
 {

src/gui/qgsvectorlayer.h

@@ -557,6 +557,10 @@ protected slots:
   };
 private:                       // Private methods
   endian_t endian();
+
+  /**Caches all the (commited) geometries to mCachedFeatures, e.g. when entering editing mode*/
+  void cacheGeometries();
+
   // pointer for loading the provider library
   QLibrary *myLib;
   //! Update threshold for drawing features as they are read. A value of zero indicates