void TestDialog::HandleEmbeddedCanvas(Int_t event, Int_t x, Int_t y, TObject *sel)
{
    // Handle events in the left embedded canvas.
	bool DragMoveFlag = false;
	m_sel = sel;
	if(fHpxpy){
		if (event == kButton3Down){
			printf("event = %d, x = %d, y = %d, obj = %s::%s\n", event, x, y, sel->IsA()->GetName(), sel->GetName());
			Region[ActRegion]->SetLineColor(kRed); 
			Region[ActRegion]->SetMarkerColor(kRed);
			if(RegionSet(x, y)){
				printf("Now we can update next plot!\n");
				iPoints = 0;
				iReg++;
			}
		}
		if (event == kButton1Double){
			if(iPoints>1){
				CloseRegion();
				printf("Draw Next region!\n");
				iPoints = 0;
				iReg++;
			}
			else
				printf("No double click. Less than three points!");
		}
		if (event == kButton1Down) {//Root can automatically handle dragging only when cursor is on the edge of Polygon
			DragMoveFlag = SelectRegion(0,x,y);
			printf("Current selected object is %s::%s\n", m_sel->IsA()->GetName(), m_sel->GetName());
		}
		if (event == kButton1Up) { //Handle Drag and Move Region.
			if( CalDragDist(0, x, y)){
			}
		}
		if (DragMoveFlag && event == kMouseMotion) {
			printf("Drag Move\n");
		}
	}
}


bool TestDialog::CalDragDist(int iLoc, int x, int y){
	double eX = 0, eY = 0; // End Point
	double dX = 0, dY = 0;
	double pX = 0, pY = 0;	
	if(iReg > 0 && fMouseUp) {
		iCanvas = iLoc;
		fCanvas[iCanvas]->cd();
		ParseXY(x, y, eX, eY); 
		dX = DragPointX - eX;
		dY = DragPointY - eY;
		if(dX == 0.0 && dY ==0.0){
			return false;
		}
		int N = Region[ActRegion]->GetN();
		for(int i=0; i<N; i++){
			Region[ActRegion]->GetPoint(i, pX, pY);
			Region[ActRegion]->SetPoint(i, pX-dX, pY-dY);
		}
		Region[ActRegion]->Draw("LP");
		fMouseUp = false;
		fCanvas[iCanvas]->Modified();
		fCanvas[iCanvas]->Update();
		return true;
	}	
	return false;
}

bool TestDialog::SelectRegion(int iLoc, int x, int y){
	bool InRegion = false;
	char CurObjName[20];
		iCanvas = iLoc;
		fCanvas[iCanvas]->cd();
		ParseXY(x, y, DragPointX, DragPointY); 
		for(int i=0; i<=(iReg-1); i++){
			InRegion = Region[i]->IsInside(DragPointX, DragPointY);
			if(InRegion) {
				if( ActRegion != i ) {
					Region[ActRegion]->SetLineColor(kRed); 
					Region[ActRegion]->SetMarkerColor(kRed);
					ActRegion = i; //Current active region
					fCanvas[iCanvas]->Modified();
					fCanvas[iCanvas]->Update();
				}
				Region[ActRegion]->SetLineColor(kGreen); 
				Region[ActRegion]->SetMarkerColor(kYellow);
				sprintf(CurObjName,"CUT%d",ActRegion+1);
				if(m_sel){
					if(!strstr(m_sel->GetName(), CurObjName)){
						m_sel->Clear();
						m_sel = gPad->GetPrimitive(CurObjName);
						printf("Selected is %s\n", m_sel->GetName());
					}
				}
				fMouseUp = true;
				break;
			}
		}
		if(!InRegion){
			fMouseUp = false;
			Region[ActRegion]->SetLineColor(kRed); 
			Region[ActRegion]->SetMarkerColor(kRed);
		}
		printf("Delete pointer\n");
		return fMouseUp;
}