import javafx.application.Application;
import javafx.application.Platform;
import javafx.stage.Stage;
import javafx.scene.layout.*;
import javafx.scene.control.*;
import javafx.scene.text.*;
import javafx.event.*;
import javafx.scene.*;
import java.io.*;
import java.util.*;
import javafx.geometry.Insets;
import javafx.stage.FileChooser;
public class Handleliste extends Application{

   public void start(Stage teater){
      
      VBox matListe = new VBox();
      Button filvelger = new Button("Velg Fil");
      Text antallText = new Text("Antall:");
      Text tallet = new Text("0");
      filvelger.setOnAction(new FilBehandler(teater,tallet, matListe));
      VBox.setMargin(matListe,new Insets(10,0,10,0));
      HBox antallBox = new HBox();
      antallBox.getChildren().addAll(antallText,tallet);
      Button stop = new Button("stopp");
      stop.setOnAction(new StoppBehandler());
      VBox kuliss = new VBox();
      kuliss.getChildren().addAll(filvelger,  antallBox, matListe,stop);
      kuliss.setStyle("-fx-backgroundcolor:#f0f0f0;"+
                     "-fx-padding:20px;");
      Scene scene = new Scene(kuliss);
      teater.setScene(scene);      
      teater.show();
   }
   public class StoppBehandler implements EventHandler<ActionEvent>{
     public void handle(ActionEvent event){
         Platform.exit();
     }
   }
   public class FilBehandler implements EventHandler<ActionEvent>{
      Stage teater;
      VBox matListe;
      Text tallet;
     public FilBehandler(Stage teater,Text tallet, VBox matListe){
        this.matListe = matListe;
        this.teater = teater;
        this.tallet=tallet;
     }
     public void handle(ActionEvent event){
      FileChooser filvelger = new FileChooser();
      File fil = filvelger.showOpenDialog(teater);
      try{
         Scanner in =new Scanner(fil);
         int antall = 0;
         while(in.hasNextLine()){
            Text matbit = new Text(in.nextLine());
            matListe.getChildren().add(matbit);
            antall ++;
         }
         tallet.setText("" + antall);
      }catch(FileNotFoundException exception){}
     }
   }
}