Widget.h

// Copyright 2022 ShenMian
// License(Apache-2.0)
 
#pragma once
 
#include <functional>
#include <string>
#include <vector>
 
namespace ui
{
 
class Widget
{
public:
    Widget();
    Widget(const std::string& label);
    Widget(const std::string& label, const std::string& id);
 
    Widget(const Widget&);
 
    void set_label(const std::string& label);
 
    const std::string& get_label() const noexcept;
 
    uint64_t get_id() const noexcept;
 
    virtual void update();
 
    static uint64_t request_id();
 
protected:
    void update_handle();
 
    std::string handle_;
 
    std::string label_;
    uint64_t    id_;
 
private:
    static uint64_t next_id_;
};
 
} // namespace ui