By default, align renderers as column header under GTK+, too.

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@53087 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

include/wx/dataview.h

@@ -60,8 +60,9 @@ extern WXDLLIMPEXP_DATA_ADV(const wxChar) wxDataViewCtrlNameStr[];
 // the default minimal width of the columns:
 #define wxDVC_DEFAULT_MINWIDTH          30
 
-// the default alignment of wxDataViewRenderers:
-#define wxDVR_DEFAULT_ALIGNMENT         (wxALIGN_LEFT|wxALIGN_CENTRE_VERTICAL)
+// The default alignment of wxDataViewRenderers is to take
+// the alignment from the column it owns.
+#define wxDVR_DEFAULT_ALIGNMENT         -1
 
 
 // ---------------------------------------------------------

include/wx/gtk/dataview.h

@@ -41,9 +41,11 @@ public:
     GtkCellRenderer* GetGtkHandle() { return m_renderer; }
     void GtkInitHandlers();
     virtual bool GtkHasAttributes() { return false; }
+    void GtkUpdateAlignment();
 
 protected:
     GtkCellRenderer   *m_renderer;
+    int                m_alignment;
 
 protected:
     DECLARE_DYNAMIC_CLASS_NO_COPY(wxDataViewRenderer)