Added paste on gridcollection, case collection and cases

Moved creation of objects into rimUiTreeModelPdm
p4#: 20968

ApplicationCode/ProjectDataModel/RimCaseCollection.cpp

@@ -22,6 +22,7 @@
 #include "RimCaseCollection.h"
 
 #include "RimReservoirView.h"
+#include "RimIdenticalGridCaseGroup.h"
 
 CAF_PDM_SOURCE_INIT(RimCaseCollection, "RimCaseCollection");
 
@@ -42,3 +43,19 @@ RimCaseCollection::~RimCaseCollection()
 {
     reservoirs.deleteAllChildObjects();
 }
+
+//--------------------------------------------------------------------------------------------------
+/// 
+//--------------------------------------------------------------------------------------------------
+RimIdenticalGridCaseGroup* RimCaseCollection::parentCaseGroup()
+{
+    std::vector<RimIdenticalGridCaseGroup*> parentObjects;
+    this->parentObjectsOfType(parentObjects);
+
+    if (parentObjects.size() > 0)
+    {
+        return parentObjects[0];
+    }
+
+    return NULL;
+}