#3136 Fix RFT/PLT plots and refactor the way Mdi windows are resized when adding/removing plot tracks.

ApplicationCode/UserInterface/RiuPlotMainWindow.h

@@ -77,6 +77,7 @@ public:
     QMdiSubWindow*      findMdiSubWindow(QWidget* viewer);
     QList<QMdiSubWindow*> subWindowList(QMdiArea::WindowOrder order);
 
+    void                setWidthOfMdiWindow(QWidget* mdiWindowWidget, int newWidth);
     void                addToTemporaryWidgets(QWidget* widget);
 
     void                updateSummaryPlotToolBar();