support retina display

[wxWidgets.git] / include / wx / renderer.h

diff --git a/include/wx/renderer.h b/include/wx/renderer.h
index c1b744ce61de0f0133190782af4f3927943898c6..6a0116d75ab8f4cb646656a2d2253b44c65a551d 100644 (file)
--- a/include/wx/renderer.h
+++ b/include/wx/renderer.h
@@ -200,6 +200,9 @@ public:
     // height if available, or a generic height based on the window's font.
     virtual int GetHeaderButtonHeight(wxWindow *win) = 0;
 
+    // Returns the margin on left and right sides of header button's label
+    virtual int GetHeaderButtonMargin(wxWindow *win) = 0;
+
 
     // draw the expanded/collapsed icon for a tree control item
     virtual void DrawTreeItemButton(wxWindow *win,
@@ -401,6 +404,9 @@ public:
     virtual int GetHeaderButtonHeight(wxWindow *win)
         { return m_rendererNative.GetHeaderButtonHeight(win); }
 
+    virtual int GetHeaderButtonMargin(wxWindow *win)
+        { return m_rendererNative.GetHeaderButtonMargin(win); }
+
     virtual void DrawTreeItemButton(wxWindow *win,
                                     wxDC& dc,
                                     const wxRect& rect,