On OSX don't propogate the alignment setting from column to renderer if it is a custom renderer. This allows the Render function to deal with the alignment itself and brings the behavior into alignment (pun intended!) with the GTK and generic DV classes. Fixes #12883

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@66706 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

include/wx/dvrenderers.h

@@ -159,6 +159,9 @@ public:
 
     wxControl *GetEditorCtrl() { return m_editorCtrl; }
 
+    virtual bool IsCustomRenderer() const { return false; }
+
+
 protected:
     // Called from {Cancel,Finish}Editing() to cleanup m_editorCtrl
     void DestroyEditControl();
@@ -278,6 +281,8 @@ public:
     // Prepare DC to use attributes and call Render().
     void WXCallRender(wxRect rect, wxDC *dc, int state);
 
+    virtual bool IsCustomRenderer() const { return true; }
+
 protected:
     // helper for GetSize() implementations, respects attributes
     wxSize GetTextExtent(const wxString& str) const;