OpenGL to c++ 1st installment - WIP

xs/src/slic3r/GUI/GLCanvas3D.hpp

@@ -0,0 +1,77 @@
+#ifndef slic3r_GLCanvas3D_hpp_
+#define slic3r_GLCanvas3D_hpp_
+
+#include "../../libslic3r/Point.hpp"
+
+class wxGLCanvas;
+class wxGLContext;
+class wxSizeEvent;
+
+namespace Slic3r {
+namespace GUI {
+
+class GLCanvas3D
+{
+public:
+    struct Camera
+    {
+        enum EType : unsigned char
+        {
+            CT_Unknown,
+            CT_Perspective,
+            CT_Ortho,
+            CT_Count
+        };
+
+        EType type;
+        float zoom;
+        float phi;
+        float theta;
+        float distance;
+        Pointf3 target;
+
+        Camera();
+    };
+
+private:
+    wxGLCanvas* m_canvas;
+    wxGLContext* m_context;
+    Camera m_camera;
+
+    bool m_dirty;
+
+public:
+    GLCanvas3D(wxGLCanvas* canvas, wxGLContext* context);
+
+    void set_current();
+
+    bool is_dirty() const;
+    void set_dirty(bool dirty);
+
+    bool is_shown_on_screen() const;
+
+    Camera::EType get_camera_type() const;
+    void set_camera_type(Camera::EType type);
+
+    float get_camera_zoom() const;
+    void set_camera_zoom(float zoom);
+
+    float get_camera_phi() const;
+    void set_camera_phi(float phi);
+
+    float get_camera_theta() const;
+    void set_camera_theta(float theta);
+
+    float get_camera_distance() const;
+    void set_camera_distance(float distance);
+
+    const Pointf3& get_camera_target() const;
+    void set_camera_target(const Pointf3& target);
+
+    void on_size(wxSizeEvent& evt);
+};
+
+} // namespace GUI
+} // namespace Slic3r
+
+#endif // slic3r_GLCanvas3D_hpp_