Added wxSizer::GetItemCount()

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@57708 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

include/wx/sizer.h

@@ -665,6 +665,8 @@ public:
     void SetDimension(int x, int y, int width, int height)
         { SetDimension(wxPoint(x, y), wxSize(width, height)); }
 
+    size_t GetItemCount() { return m_children.GetCount(); }
+
     wxSizerItem* GetItem( wxWindow *window, bool recursive = false );
     wxSizerItem* GetItem( wxSizer *sizer, bool recursive = false );
     wxSizerItem* GetItem( size_t index );

interface/wx/sizer.h

@@ -1091,6 +1091,11 @@ public:
     */
     wxWindow* GetContainingWindow() const;
 
+    /**
+       Returns the number of items in the sizer.
+    */
+    size_t GetItemCount();
+    
     /**
         Finds wxSizerItem which holds the given @a window.
         Use parameter @a recursive to search in subsizers too.