// Cinder and GestureWorks functions
class InteractiveBitmapsApp : public AppNative {
public:
    TouchObject	logo1_dimensions;
    TouchObject	logo2_dimensions;
    gl::Texture logo;
    int screen_width;
    int screen_height;
    bool use_pixels;

    std::pair<int, int> normScreenToWindowPx(float screen_x, float screen_y);
    void prepareSettings(Settings *settings);
    void setup();
    void update();
    void draw();

private:
    // helper functions
    float radsToDegrees(float rad);
    float degreesToRads(float deg);
    bool test_point(float point_x, float point_y, float box_x, float box_y, float box_width, float box_height, float box_angle, float box_scale);
    float rotateAboutCenterX(float point_x, float point_y, float center_x, float center_y, float ref_angle);
    float rotateAboutCenterY(float point_x, float point_y, float center_x, float center_y, float ref_angle);
    float getDrawingCoordX(float width, float height, float box_x, float box_y, float box_angle, float box_scale);
    float getDrawingCoordY(float width, float height, float box_x, float box_y, float box_angle, float box_scale);
};