package error;

import java.awt.*;
import java.awt.event.*;
import java.applet.*;

public class ErrorApplet extends Applet {
  boolean isStandalone = false;
  Panel Panel1 = new Panel();
  TextArea tDatos = new TextArea();
  Label label1 = new Label();
  TextField tMedio = new TextField();
  Label label2 = new Label();
  TextField tError = new TextField();
  Button btnCalcular = new Button();
  Button btnBorrar = new Button();
  GridBagLayout gbl1 = new GridBagLayout();
  GridBagConstraints gbc1=new GridBagConstraints();

  BorderLayout borderLayout2 = new BorderLayout();
  GridLayout gridLayout1 = new GridLayout();
     Error error;
  //Construct the applet
  
  public ErrorApplet() {
  }
//Initialize the applet
  
  public void init() {
    try {
    jbInit();
    }
    catch (Exception e) {
    e.printStackTrace();
    }
  }

  private void jbInit() throws Exception {
     int ancho = Integer.parseInt(this.getParameter("WIDTH"));
     int alto = Integer.parseInt(this.getParameter("HEIGHT"));
     this.setSize(new Dimension(ancho, alto));
    Panel1.setBackground(Color.lightGray);
    tDatos.setColumns(6);
    label1.setText("Valor medio");
    tMedio.setColumns(6);
    tMedio.setEditable(false);
    tMedio.setText("0.0");
    label2.setText("Error cuadrático");
    tError.setColumns(6);
    tError.setEditable(false);
    tError.setText("0.0");
    btnCalcular.setFont(new Font("Dialog", 1, 14));
    btnCalcular.setLabel("Calcular");
    btnCalcular.addActionListener(new java.awt.event.ActionListener() {
      public void actionPerformed(ActionEvent e) {
        btnCalcular_actionPerformed(e);
      }
    });
    btnBorrar.setLabel("Borrar");
    btnBorrar.addActionListener(new java.awt.event.ActionListener() {
      public void actionPerformed(ActionEvent e) {
        btnBorrar_actionPerformed(e);
      }
    });
    this.setLayout(gridLayout1);
    this.add(tDatos, null);
    this.add(Panel1, null);

//panel 1
     Panel1.setLayout(gbl1);
     gbc1.anchor=GridBagConstraints.WEST;
     gbc1.gridwidth=1;
     gbc1.insets=new Insets(5,0,5,0);
     Panel1.add(label1, gbc1);
     gbc1.gridwidth=GridBagConstraints.REMAINDER;
     Panel1.add(tMedio, gbc1);

     gbc1.anchor=GridBagConstraints.WEST;
     gbc1.gridwidth=1;
     gbc1.insets=new Insets(5,0,5,0);
     Panel1.add(label2, gbc1);
     gbc1.gridwidth=GridBagConstraints.REMAINDER;
     Panel1.add(tError, gbc1);

     gbc1.anchor=GridBagConstraints.CENTER;
     gbc1.gridwidth=1;
     gbc1.insets=new Insets(25,0,5,0);
     Panel1.add(btnCalcular, gbc1);
     gbc1.gridwidth=GridBagConstraints.REMAINDER;
     Panel1.add(btnBorrar, gbc1);
 }

  void btnCalcular_actionPerformed(ActionEvent e) {
      String entrada=tDatos.getText();
      Error error=new Error();
      error.setDatos(entrada);
      if(error.setDatos(entrada)){
          error.calcular();
          tMedio.setText(String.valueOf((double)Math.round(error.getMedia()*10000)/10000));
          tError.setText(String.valueOf((double)Math.round(error.getError()*10000)/10000));
      }else{
          tDatos.append("\nEl número \nde datos ha de ser\n mayor que 2");
          return;
      }
  }

  void btnBorrar_actionPerformed(ActionEvent e) {
     tDatos.setText("");
  }
}