OS/2 scrolling support

[wxWidgets.git] / include / wx / generic / treelay.h

diff --git a/include/wx/generic/treelay.h b/include/wx/generic/treelay.h
index 92963b63dbc7c7de0d54bcbc8412f643c9d3d1a3..9113f78f8a3239876a5aede8218b694042cec3cf 100644 (file)
--- a/include/wx/generic/treelay.h
+++ b/include/wx/generic/treelay.h
@@ -16,7 +16,16 @@
 #pragma interface "wxtree.h"
 #endif
 
-#include <wx/string.h>
+#ifndef WX_PRECOMP
+#include "wx/object.h"
+class wxList;
+class wxDC;
+class wxMouseEvent;
+#endif
+
+#include "wx/string.h"
+
+#if wxUSE_TREELAYOUT
 
 class WXDLLEXPORT wxTreeLayout: public wxObject
 {
@@ -24,6 +33,7 @@ class WXDLLEXPORT wxTreeLayout: public wxObject
 
 public:
     wxTreeLayout();
+    virtual ~wxTreeLayout() { }
 
     // Redefine these
     virtual void GetChildren(long id, wxList& list) = 0;
@@ -98,7 +108,7 @@ class WXDLLEXPORT wxTreeLayoutStored: public wxTreeLayout
     DECLARE_DYNAMIC_CLASS(wxTreeLayoutStored)
 public:
     wxTreeLayoutStored(int noNodes = 200);
-    ~wxTreeLayoutStored(void);
+    virtual ~wxTreeLayoutStored(void);
     void Initialize(int n);
 
     wxString HitTest(wxMouseEvent& event, wxDC& dc);
@@ -133,6 +143,9 @@ private:
 // For backward compatibility
 #define wxStoredTree wxTreeLayoutStored
 
+#endif
+    // wxUSE_TREELAYOUT
+
 #endif
  // _WX_TREELAY_H_