//clock.h



#include

#include

#include

#include

#include

#include

#include

#include

#include

#include

#include

#include



#include

#include

#include

#include

#include

#include

#include



class Clock:public QWidget

{

    Q_OBJECT

    public:

       Clock(QWidget *parent=0,const char *name=0);

    public slots:

       void rePaintTime(); 

       void setBeepTime();

       void beep();

    signals:

       void timeOut();     

    private:

       QTime nowTime;  

       QString time; 

       QLabel *label;

       QString beepTime;

       QLineEdit *textTime;

};

//clock.cpp

#include"clock.h"



Clock::Clock(QWidget *parent,const char *name):QWidget(parent,name)

{

   QVBox *vBox = new QVBox(this);

   QHBox *hBox = new QHBox(vBox);



   (void) new QLabel("Your Waik Time :",hBox);

   textTime = new QLineEdit(hBox);

   QPushButton *submit = new QPushButton("Submit",hBox);

   connect(submit,SIGNAL(clicked()),this,SLOT(setBeepTime()));

   

   label = new QLabel("",vBox);

   QTimer *timer = new QTimer(this);

   connect(timer,SIGNAL(timeout()),this,SLOT(rePaintTime()));

   

   label->resize(100,100);

   label->setFont(QFont("Times",18,QFont::Bold));

   

   nowTime = QTime::currentTime();

   time = nowTime.toString();

   

   label->setText(time); 

   

   timer->start(1000,FALSE);

   connect(this,SIGNAL(timeOut()),this,SLOT(beep()));

}



void Clock::rePaintTime()

{

   nowTime = QTime::currentTime();

   time = nowTime.toString();

   if(time == beepTime) emit timeOut();

   label->setText(time); 

}



void Clock::setBeepTime()

{

   beepTime = textTime->text();   

}



void Clock::beep()

{

   int fd;

   fd = open("/dev/beeps",0);

   if(fd