Timer.h

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#pragma once
 
#include <sstream>
 
#include "../Time.h"
 
namespace Gorgon { namespace Time {
 
    class Timer {
        friend std::ostream &operator <<(std::ostream &output, const Timer &timer);
    public:
        
        Timer(unsigned passed=0) : passed(passed) {
            lasttick=GetTime();
        }
 
        void Start() {
            lasttick=GetTime();
        }
 
        Timer &Tick() {
            unsigned current=GetTime();
 
            passed+=current-lasttick;
            lasttick=current;
            
            return *this;
        }
 
        unsigned Get() const {
            return passed;
        }
        
        void Set(unsigned passed) {
            this->passed=passed;
            lasttick=GetTime();
        }
        
        operator unsigned() const {
            return passed;
        }
 
        void Reset() {
            Set(0);
        }
 
        void ShowDialog(const std::string &name ="Time passed", 
                        const std::string &title="Performance timer") const;
 
    private:
        unsigned lasttick;
        unsigned passed;
    };
    
    inline std::ostream &operator <<(std::ostream &output, const Timer &timer) {
        output<<timer.Get();
        
        return output;
    }
        
} }