Mac: Implement Retina for the 3D scene, fix #97

src/slic3r/Utils/RetinaHelper.hpp

@@ -0,0 +1,29 @@
+#ifndef slic3r_RetinaHelper_hpp_
+#define slic3r_RetinaHelper_hpp_
+
+class wxWindow;
+
+
+namespace Slic3r {
+namespace GUI {
+
+class RetinaHelper
+{
+public:
+    RetinaHelper(wxWindow* window);
+    ~RetinaHelper();
+
+    void set_use_retina(bool value);
+    bool get_use_retina();
+    float get_scale_factor();
+
+private:
+    wxWindow* m_window;
+    void* m_self;
+};
+
+
+} // namespace GUI
+} // namespace Slic3r
+
+#endif // RetinaHelper_h