added GetBorder(flags)

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@21717 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

include/wx/window.h

@@ -680,9 +680,13 @@ public:
     // misc
     // ----
 
-    // get the window border style: uses the current style and falls back to
-    // the default style for this class otherwise (see GetDefaultBorder())
-    wxBorder GetBorder() const;
+    // get the window border style from the given flags: this is different from
+    // simply doing flags & wxBORDER_MASK because it uses GetDefaultBorder() to
+    // translate wxBORDER_DEFAULT to something reasonable
+    wxBorder GetBorder(long flags) const;
+
+    // get border for the flags of this window
+    wxBorder GetBorder() const { return GetBorder(GetWindowStyleFlag()); }
 
     void UpdateWindowUI();