//
// Created by zx on 22-12-2.
//

#ifndef LIO_LIVOX_CPP__PANGOLINVIEWER_H_
#define LIO_LIVOX_CPP__PANGOLINVIEWER_H_

#include <pangolin/var/var.h>
#include <pangolin/var/varextra.h>
#include <pangolin/gl/gl.h>
#include <pangolin/gl/gldraw.h>
#include <pangolin/display/display.h>
#include <pangolin/display/view.h>
#include <pangolin/display/widgets.h>
#include <pangolin/display/default_font.h>
#include <pangolin/handler/handler.h>
#include "segment/LidarFeatureExtractor.h"
#include <thread>
#include "define/typedef.h"


class PangolinViewer
{
 public:
    typedef void(*ViewerSpinOnceCallback)(PangolinViewer*);
    typedef void(*StartLocateBtnCallback)(std::string);
    typedef void(*StartBtnCallback)();
    typedef void(*StopBtnCallback)();
    typedef void(*FreqChangedCallback)(int);
 public:
    static PangolinViewer* CreateViewer();

    void SetCallbacks(ViewerSpinOnceCallback spinOnce,StartLocateBtnCallback startBtn,
     StopBtnCallback stopBtn,FreqChangedCallback freqChanged);

    void ShowRealtimePose(Eigen::Matrix4d pose);
    void ShowSlamCost(double cost);
    void ShowSlamQueueTime(int queue,double tm);
    void DrawCloud(PointCloud::Ptr cloud,double r,double g,double b,
     double alpha,double psize);
    void Join();
    ~PangolinViewer();

 private:
    static void loop(PangolinViewer* p);
    PangolinViewer();

    void Init();

 protected:
    static PangolinViewer* viewer_;
    std::thread* thread_;


    pangolin::GlFont *text_font_ ;
    pangolin::OpenGlRenderState* s_cam_;
    pangolin::View *d_cam_ ;

    pangolin::Var<bool>* lvx_checkbox_;
    pangolin::Var<std::string>* lvx_file_;

    pangolin::Var<bool>* start_button_;
    pangolin::Var<bool>* stop_button_;
    pangolin::Var<double>* freq_double_;

    pangolin::Var<std::string>* timequeue_string_;
    pangolin::Var<std::string>* xyz_string_;
    pangolin::Var<std::string>* rpy_string_;
    pangolin::Var<std::string>* cost_string_;


    ViewerSpinOnceCallback spinOnce_callback_=nullptr;
    StartLocateBtnCallback startBtn_callback_=nullptr;
    StopBtnCallback stopBtn_callback_= nullptr;
    FreqChangedCallback freqChanged_callback_= nullptr;


};


#endif //LIO_LIVOX_CPP__PANGOLINVIEWER_H_