1: // timer_app.h

   2: ////////////////////////////////////////////////////////////////////////////////

   3: // main application frame declaration

   4: ////////////////////////////////////////////////////////////////////////////////

   5:  

   6: class TimerFrame : public MainDialogBase

   7: {

   8: public:

   9:     TimerFrame( wxWindow *parent );

  10:     virtual ~TimerFrame();

  11:  

  12: protected:

  13:     // protected event handlers

  14:     virtual void OnCloseDialog( wxCloseEvent& event );

  15:     virtual void OnSetButtonClick( wxCommandEvent& event );

  16:     virtual void OnStartButtonClick( wxCommandEvent& event );

  17:     

  18: public:

  19:     void OnTimer( wxTimerEvent& event );

  20:     

  21: private:

  22:     int m_minute;

  23:     int m_second;

  24:     wxTimer *m_clock;

  25:     wxDECLARE_EVENT_TABLE();    

  26: };

  27:  

  28: // timer_app.cpp

  29: // event list, combine timer event with OnTimer function

  30: wxBEGIN_EVENT_TABLE(TimerFrame, MainDialogBase)

  31: EVT_TIMER(TIMER_ID, TimerFrame::OnTimer)

  32: wxEND_EVENT_TABLE()

  33:  

  34: //......some code......

  35:  

  36: TimerFrame::TimerFrame(wxWindow *parent) : MainDialogBase( parent )

  37: {

  38:     m_clock = new wxTimer();               // create a new wxTimer

  39:     m_clock->SetOwner(this, TIMER_ID);     // set owner, #define TIMER_ID 1000

  40:     m_minute = 25;

  41:     m_second = 0;

  42: }

  43:  

  44: //......some code......

  45:  

  46: // count down the time and show

  47: void TimerFrame::OnTimer(wxTimerEvent& event)

  48: {

  49:     // determine the minute and second wait to show

  50:     if (m_second == 0 && m_minute == 0) {
  51:         m_clock->Stop();

  52:         wxMessageBox(wxT("Time over"),wxT("Timer"));

  53:         return;

  54:     } else if (m_second ==0) {

  55:         m_second = 59;

  56:         m_minute -= 1;

  57:     } else {

  58:         m_second -= 1;

  59:     }

  60:     wxString sTmp;

  61:     sTmp.Printf(wxT("%d"),m_minute);

  62:     m_minuteTextCtrl->SetValue(sTmp);

  63:     sTmp.Printf(wxT("%d"),m_second);

  64:     m_secondTextCtrl->SetValue(sTmp);

  65: }

  66: