#include "TGFrame.h"
#include "TGButton.h"
#include "TRootEmbeddedCanvas.h"
#include "TCanvas.h"

class MainFrame: public TGMainFrame {
private:
   TGCompositeFrame *MyCompositeFrame;
   TRootEmbeddedCanvas *MyEmbeddedCanvas;
public:
   MainFrame(const TGWindow *p);
   void CreateNewCanvas();

   ClassDef(MainFrame, 0)
};

void MainFrame::CreateNewCanvas()
{
   if (MyEmbeddedCanvas) {
      MyEmbeddedCanvas->GetCanvas()->cd();
      gVirtualX->CloseWindow();
      MyCompositeFrame->Cleanup();
   }
   MyEmbeddedCanvas = new TRootEmbeddedCanvas(0, MyCompositeFrame);
   MyCompositeFrame->AddFrame(MyEmbeddedCanvas, new TGLayoutHints(kLHintsTop | kLHintsLeft | kLHintsExpandX | kLHintsExpandY));
   MyCompositeFrame->MapSubwindows();
   MyCompositeFrame->Layout();
}

MainFrame::MainFrame(const TGWindow *p) : TGMainFrame(p), MyCompositeFrame(0), MyEmbeddedCanvas(0)
{
   SetCleanup(kDeepCleanup);
   TGTextButton *MyButton=new TGTextButton(this, "Click me");
   MyButton->Connect("Clicked()", "MainFrame", this, "CreateNewCanvas()");
   AddFrame(MyButton, new TGLayoutHints(kLHintsTop | kLHintsLeft | kLHintsExpandX));
   AddFrame(MyCompositeFrame=new TGCompositeFrame(this), new TGLayoutHints(kLHintsTop | kLHintsLeft | kLHintsExpandX | kLHintsExpandY));
   MapSubwindows();
   Resize(700, 500);
   MapWindow();
   CreateNewCanvas();
}

void xorgsolution()
{
   new MainFrame(gClient->GetRoot());
}