Use unique camera shared by 3d view and preview (experimental)

src/slic3r/GUI/Camera.hpp

@@ -0,0 +1,54 @@
+#ifndef slic3r_Camera_hpp_
+#define slic3r_Camera_hpp_
+
+#if ENABLE_SHARED_CAMERA
+
+#include "libslic3r/BoundingBox.hpp"
+
+namespace Slic3r {
+namespace GUI {
+
+struct Camera
+{
+    enum EType : unsigned char
+    {
+        Unknown,
+//        Perspective,
+        Ortho,
+        Num_types
+    };
+
+    EType type;
+    float zoom;
+    float phi;
+//    float distance;
+    bool requires_zoom_to_bed;
+
+private:
+    Vec3d m_target;
+    float m_theta;
+
+    BoundingBoxf3 m_scene_box;
+
+public:
+    Camera();
+
+    std::string get_type_as_string() const;
+
+    const Vec3d& get_target() const { return m_target; }
+    void set_target(const Vec3d& target);
+
+    float get_theta() const { return m_theta; }
+    void set_theta(float theta, bool apply_limit);
+
+    const BoundingBoxf3& get_scene_box() const { return m_scene_box; }
+    void set_scene_box(const BoundingBoxf3& box);
+};
+
+} // GUI
+} // Slic3r
+
+#endif // ENABLE_SHARED_CAMERA
+
+#endif // slic3r_Camera_hpp_
+