Timer.h

#pragma once
 
#include "Event.h"
#include "WndBase.h"
 
namespace sw
{
    class Timer; // 向前声明
 
    using TimerTickHandler = EventHandler<Timer>;
 
    class Timer : public WndBase
    {
    private:
        bool _started = false;
 
        uint32_t _interval = 1000;
 
        TimerTickHandler _tick;
 
    public:
        const Event<TimerTickHandler> Tick;
 
        const Property<uint32_t> Interval;
 
    public:
        Timer();
 
        void Start();
 
        void Stop();
 
    protected:
        virtual void OnTick();
 
    private:
        static Timer *_GetTimerPtr(HWND hwnd);
 
        static void _SetTimerPtr(HWND hwnd, Timer &timer);
 
        static void CALLBACK _TimerProc(HWND hwnd, UINT msg, UINT_PTR idTimer, DWORD time);
    };
}