#ifndef XTC_MIXER_WIDGET_HPP
#define XTC_MIXER_WIDGET_HPP
#include "xtc/xtc_mixer.h"
#include <FL/Fl_Group.H>

class Fl_Choice;
class Fl_Value_Slider;
class Fl_Check_Button;
class Fl_Progress;
class Fl_Value_Input;
class AutomationLane;

class MixerWidget : public Fl_Group {
  public:
    using BeforeEdit = xtc_result (*)(void *);
    MixerWidget(int, int, int, int, xtc_project *, BeforeEdit, void *);
    void set_project(xtc_project *);
    void peaks(float left, float right);
    uint64_t selected_track() const;

    xtc_project *project() const
    {
        return project_;
    }

    xtc_automation_parameter parameter() const;
    uint64_t lane_start() const;
    xtc_result point(uint64_t tick, float value, bool remove = false);
    xtc_result mix(float gain, float pan, int mute, int solo);
    int handle(int) override;

  private:
    xtc_project *project_;
    BeforeEdit before_;
    void *context_;
    Fl_Choice *tracks_, *parameter_;
    Fl_Value_Slider *gain_, *pan_;
    Fl_Check_Button *mute_, *solo_;
    Fl_Progress *left_, *right_;
    Fl_Value_Input *start_;
    AutomationLane *lane_;
    xtc_result changed(xtc_result);
    void selection();
    static void control(Fl_Widget *, void *);
    static void select(Fl_Widget *, void *);
};
#endif