// gROOT->Reset();
#include <stdlib.h>

#include <TROOT.h>
#include <TApplication.h>
#include <TVirtualX.h>
#include <TVirtualPadEditor.h>
#include <TGResourcePool.h>
#include <TGListBox.h>
#include <TGListTree.h>
#include <TGFSContainer.h>
#include <TGClient.h>
#include <TGFrame.h>
#include <TGIcon.h>
#include <TGLabel.h>
#include <TGButton.h>
#include <TGTextEntry.h>
#include <TGNumberEntry.h>
#include <TGMsgBox.h>
#include <TGMenu.h>
#include <TGCanvas.h>
#include <TGComboBox.h>
#include <TGTab.h>
#include <TGSlider.h>
#include <TGDoubleSlider.h>
#include <TGFileDialog.h>
#include <TGTextEdit.h>
#include <TGShutter.h>
#include <TGProgressBar.h>
#include <TGColorSelect.h>
#include <RQ_OBJECT.h>
#include <TRootEmbeddedCanvas.h>
#include <TCanvas.h>
#include <TH1.h>
#include <TH2.h>
#include <TRandom.h>
#include <TSystem.h>
#include <TSystemDirectory.h>
#include <TEnv.h>
#include <TFile.h>
#include <TKey.h>
#include <TGDockableFrame.h>
#include <TGFontDialog.h>
class MyMainFrame {
    RQ_OBJECT("MyMainFrame")
    private:
        TGMainFrame *fMain;
        TRootEmbeddedCanvas *fEcanvas;
        TGVerticalFrame *fF1;
        TGLayoutHints   *fL1, *fL2;
        TGNumberEntry   *fNumericEntries[3];
        TGHorizontalFrame    *fF[3];
        TGLabel              *fLabel[3];
    public:
        MyMainFrame(const TGWindow *p,UInt_t w,UInt_t h);
        virtual ~MyMainFrame();
        void DoDraw();
};

const Double_t numinit[] = {
   0.5, 0.1, -40
};

const char *numlabel[] = {
   "A",
   "K",
   "D"   
};



MyMainFrame::MyMainFrame(const TGWindow *p,UInt_t w,UInt_t h) {
   
    // Create a main frame
    fMain = new TGMainFrame(p,w,h);
    // Create canvas widget
    fEcanvas = new TRootEmbeddedCanvas("Ecanvas",fMain,w,h);
    fMain->AddFrame(fEcanvas, new TGLayoutHints(kLHintsExpandX| kLHintsExpandY, 10,10,10,1));
    // Create a horizontal frame widget with buttons
    fF1 = new TGVerticalFrame(fMain, 200, 300);
    fL1 = new TGLayoutHints(kLHintsTop | kLHintsLeft, 2, 2, 2, 2);
    fMain->AddFrame(fF1, fL1);
    fL2 = new TGLayoutHints(kLHintsCenterY | kLHintsLeft, 2, 2, 2, 2);
 
    for (int i = 0; i < 3; i++) {
      fF[i] = new TGHorizontalFrame(fF1, 200, 30);
      fF1->AddFrame(fF[i], fL2);
      fNumericEntries[i] = new TGNumberEntry(fF[i], numinit[i], 12, i + 20,(TGNumberFormat::EStyle) 5);        
      fNumericEntries[i]->Connect("ValueSet(Long_t)", "MyMainFrame", this, "DoDraw()");          
      fF[i]->AddFrame(fNumericEntries[i], fL2);
      fLabel[i] = new TGLabel(fF[i], numlabel[i]);
      fF[i]->AddFrame(fLabel[i], fL2);
    }
    //cout<< fNumericEntries[0]->GetNumStyle()<<" "<<fNumericEntries[1]->GetNumber()<<" "<<fNumericEntries[2]->GetNumber()<<endl;
    //fNumericEntries[0]->SetFormat((TGNumberFormat::EStyle)5);
    cout<< fNumericEntries[0]->GetNumStyle()<<" "<<fNumericEntries[1]->GetNumber()<<" "<<fNumericEntries[2]->GetNumber()<<endl;
    TGHorizontalFrame *hframe = new TGHorizontalFrame(fMain,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", "gApplication->Terminate(0)");
    hframe->AddFrame(exit, new TGLayoutHints(kLHintsCenterX,5,5,3,4));
    fMain->AddFrame(hframe, new TGLayoutHints(kLHintsCenterX,2,2,2,2));
    
    // Set a name to the main frame
    fMain->SetWindowName("Simple Example");
    // Map all subwindows of main frame
    fMain->MapSubwindows();
    // Initialize the layout algorithm
    fMain->Resize(fMain->GetDefaultSize());
    // Map main frame
    fMain->MapWindow();
}

void MyMainFrame::DoDraw() {
    // Draws function graphics in randomly choosen interval
    TCanvas *fCanvas = fEcanvas->GetCanvas();
    fCanvas->Clear();
    Int_t n = 50;
    Double_t x[50],y[50], v = -80;
    for(Int_t i=0; i<n; i++){
        x[i] = -80 + (i* (130)/n);
        y[i] = fNumericEntries[0]->GetNumber() * exp(fNumericEntries[1]->GetNumber() * (x[i] - fNumericEntries[2]->GetNumber()));
        //y[i] = 0.5 * exp(0.1 * (x[i] + 50 ));
    }        
    TGraph *T1 = new TGraph(n, x,y);
    T1->Draw("AC");   
    fCanvas->cd();
    fCanvas->Update();
}

MyMainFrame::~MyMainFrame() {
    // Clean up used widgets: frames, buttons, layouthints
    fMain->Cleanup();
    delete fMain;
}
//void plot() {
    // Popup the GUI...
  //  new MyMainFrame(gClient->GetRoot(),500,500);
//}

void plot()
{
   new MyMainFrame(0, 400, 220);
}

//---- Main program ------------------------------------------------------------
#ifdef STANDALONE
int main(int argc, char **argv)
{
   TApplication theApp("App", &argc, argv);

   if (gROOT->IsBatch()) {
      fprintf(stderr, "%s: cannot run in batch mode\n", argv[0]);
      return 1;
   }

   guitest();

   theApp.Run();

   return 0;
}