Refactor: Use PlotCollection interface more places.

ApplicationLibCode/ProjectDataModel/RimMultiPlotCollection.cpp

@@ -46,7 +46,7 @@ RimMultiPlotCollection::~RimMultiPlotCollection()
 //--------------------------------------------------------------------------------------------------
 ///
 //--------------------------------------------------------------------------------------------------
-void RimMultiPlotCollection::deleteAllChildObjects()
+void RimMultiPlotCollection::deleteAllPlots()
 {
     m_multiPlots.deleteAllChildObjects();
 }
@@ -78,3 +78,20 @@ void RimMultiPlotCollection::addMultiPlot( RimMultiPlot* plot )
 {
     m_multiPlots().push_back( plot );
 }
+
+//--------------------------------------------------------------------------------------------------
+///
+//--------------------------------------------------------------------------------------------------
+void RimMultiPlotCollection::loadDataAndUpdateAllPlots()
+{
+    for ( const auto& p : m_multiPlots.childObjects() )
+        p->loadDataAndUpdate();
+}
+
+//--------------------------------------------------------------------------------------------------
+///
+//--------------------------------------------------------------------------------------------------
+size_t RimMultiPlotCollection::plotCount() const
+{
+    return m_multiPlots.size();
+}