//
// Author: Ilka Antcheva   1/12/2006

// This macro gives an example of how to create a status bar related to
// an embedded canvas that shows the info of the selected object exactly
// as the status bar of any canvas window
// To run it do either:
// .x statusBar.C
// .x statusBar.C++

#include <TApplication.h>
#include <TGClient.h>
#include <TGButton.h>
#include <TGFrame.h>
#include <TFrame.h>
#include <TRootEmbeddedCanvas.h>
#include <TGStatusBar.h>
#include <TCanvas.h>
#include <TF1.h>
#include <TRandom.h>
#include <TGraph.h>
#include <TAxis.h>


class MyMainFrame : public TGMainFrame {

private:
   TGStatusBar          *fStatusBar;
   
public:
   MyMainFrame(const TGWindow *p, UInt_t w, UInt_t h);
   virtual ~MyMainFrame();
   void DoExit();
   void DoDraw();
   
   ClassDef(MyMainFrame, 0)
};

void MyMainFrame::DoDraw()
{
   // Draw something in the canvas

   Printf("Processing...");
   
   fStatusBar->SetText("Processing...");
   //fStatusBar->Layout();
   gClient->NeedRedraw(fStatusBar);
   
   float S = 0.f;
   for (int i = 0; i < 10000000; ++i)
     S += i*i;
   
   
   Printf("%f", S);

   fStatusBar->SetText("Ready");
}

void MyMainFrame::DoExit()
{
   printf("Exit application...");
   gApplication->Terminate(0);
}


MyMainFrame::MyMainFrame(const TGWindow *p, UInt_t w, UInt_t h) :
   TGMainFrame(p, w, h)
{

   
   // Create a horizontal frame containing two buttons
   TGHorizontalFrame *hframe = new TGHorizontalFrame(this, 200, 40);
  
   TGTextButton *draw = new TGTextButton(hframe, "&Draw");
   draw->Connect("Clicked()", "MyMainFrame", this, "DoDraw()");
   hframe->AddFrame(draw, new TGLayoutHints(kLHintsCenterX, 5, 5, 3, 4));
   TGTextButton *exit = new TGTextButton(hframe, "&Exit ");
   exit->Connect("Pressed()", "MyMainFrame", this, "DoExit()");
   hframe->AddFrame(exit, new TGLayoutHints(kLHintsCenterX, 5, 5, 3, 4));

   AddFrame(hframe, new TGLayoutHints(kLHintsCenterX, 2, 2, 2, 2));

   // status bar
   fStatusBar = new TGStatusBar(this, 50, 10, kVerticalFrame);
   AddFrame(fStatusBar, new TGLayoutHints(kLHintsExpandX, 0, 0, 10, 0));
   
   
   // Set a name to the main frame   
   MapSubwindows();

   // Initialize the layout algorithm via Resize()
   Resize(GetDefaultSize());

   // Map main frame
   MapWindow();
}


MyMainFrame::~MyMainFrame()
{
   // Clean up main frame...
   Cleanup();
}


void statusBar()
{
   // Popup the GUI...
   new MyMainFrame(gClient->GetRoot(), 200, 200);
}