#include <TROOT.h>
#include <TGButton.h>
#include <TGFrame.h>
#include <TTimer.h>
#include <TThread.h>
#include <iostream.h>
#include <RQ_OBJECT.h>

class MyMainFrame : public TGMainFrame {

  RQ_OBJECT("MyMainFrame")

private:
  TTimer *timer;
  TThread *thread;
  TGMainFrame *fMain;
public:
  MyMainFrame(const TGWindow *p,UInt_t w,UInt_t h);
  virtual ~MyMainFrame();
  void DoDraw();
  void EnableTimer();
  void DisableTimer();
  void *PrintStuff(void *arg);
};

MyMainFrame::MyMainFrame(const TGWindow *p,UInt_t w,UInt_t h) 
{
  fMain = new TGMainFrame(p,w,h);

  TGTextButton *start = new TGTextButton(fMain,"&Start ");
  start->Connect("Clicked()","MyMainFrame",this,"EnableTimer()");

  TGTextButton *stop = new TGTextButton(fMain,"&Stop ");
  stop->Connect("Clicked()","MyMainFrame",this,"DisableTimer()");

  fMain->AddFrame(start, new TGLayoutHints(kLHintsCenterY,5,5,3,4));
  fMain->AddFrame(stop, new TGLayoutHints(kLHintsCenterY,5,5,3,4));

  thread = new TThread("thread", (void (*)(void *))&PrintStuff, (void*) 0);

}

void MyMainFrame::DoDraw() 
{
  thread->Run();
}

void MyMainFrame::EnableTimer()
{
  if(!timer)
    {
      timer = new TTimer(this, 1000, kTRUE); //synchronous or asynch?
      timer->Connect("Timeout()", "MyMainFrame", this, "DoDraw()");
      timer->Reset();
      timer->TurnOn();
    }
  else
    timer->TurnOn();
}

void MyMainFrame::DisableTimer()
{
  if(timer)  
    timer->TurnOff(); 
}

void *MyMainFrame::PrintStuff(void *arg)
{
  cout << "Did it work?" << endl;
}

MyMainFrame::~MyMainFrame() {
  fMain->Cleanup();
  delete fMain;
}

void sample() 
{
  // Popup the GUI...
  new MyMainFrame(gClient->GetRoot(),600,400);
}