//Titel:            4. Vorlesungsuebung
//Version:          1,0
//Copyright:        Copyright (c) 2013
//Autor:            M. Wilhelm
//Organisation:     HS-Harz
//Beschreibung:     BorderLayout mit SplitPane


import java.awt.*;
import javax.swing.*;
import java.awt.event.*;

import java.util.*;
import java.io.*;

import javax.swing.filechooser.*;

public class Vorl04 extends JFrame implements ActionListener {
   public static final long serialVersionUID=1;

   // global fuer addActionListener
    JMenuItem mnOpen = new JMenuItem("Öffnen");
    JMenuItem mnKopy = new JMenuItem("Kopieren");
    JMenuItem mnClose = new JMenuItem("Schließen");

  JTextArea editor1 = new JTextArea();
  JTextArea editor2 = new JTextArea();
  

  public Vorl04() {
    setDefaultCloseOperation( JFrame.EXIT_ON_CLOSE );
    setGUI();
    setMenus();
  }

  private void setGUI() {
    setSize(700, 450);
    setTitle("04. Tutorial");

    this.getContentPane().setLayout( new BorderLayout() );

     // true = neu zeichnen am "splitten"
    JSplitPane split = new JSplitPane(JSplitPane.HORIZONTAL_SPLIT, true,
         new JScrollPane(editor1), 
         new JScrollPane(editor2)
    );
    
    split.setDividerLocation(280);

    this.getContentPane().add(split, BorderLayout.CENTER);

    editor1.setFont( new Font("Arial", Font.BOLD,18)  );
    editor2.setFont( new Font("Arial", Font.BOLD,18)  );
  } // setGUI


    // setzt die Menüs
  private void setMenus() {
    JMenuBar menuBar1 = new JMenuBar();
    JMenu mainFile = new JMenu("Datei");

    mnOpen.setAccelerator( KeyStroke.getKeyStroke(KeyEvent.VK_O, ActionEvent.CTRL_MASK));
    mnKopy.setAccelerator( KeyStroke.getKeyStroke(KeyEvent.VK_K, ActionEvent.CTRL_MASK));
    mainFile.add(mnOpen);
    mainFile.add(mnKopy);
    mainFile.addSeparator();
    mainFile.add(mnClose);

    menuBar1.add(mainFile);

    this.setJMenuBar(menuBar1);

    mnOpen.addActionListener(this);
    mnKopy.addActionListener(this);
    mnClose.addActionListener(this);

    for (int i=0; i<menuBar1.getComponentCount(); i++ ) {
       JMenu main  = (JMenu) menuBar1.getComponent(i);
       main.setFont( new Font("Arial", Font.BOLD,18)  );
       for (int j=0; j<main.getItemCount(); j++ ) {
          Component c = main.getItem(j);
          if (c instanceof JMenuItem) {
             JMenuItem mn = (JMenuItem) c;
             mn.setFont( new Font("Arial", Font.BOLD,18)  );
         }
      }
    }

  } // setMenus

  public void actionPerformed(ActionEvent e) {
    if (e.getSource() == mnOpen ) {
      mnOpen_click();
    }
    if (e.getSource() == mnKopy ) {
      mnCopy_click();
    }

    if (e.getSource() == mnClose ) {
      System.exit(0);
    }
  }

  private void mnOpen_click() {
   JFileChooser jFileChooser1 = new JFileChooser();
	// Ok-Schalter gedrückt ?
    if (jFileChooser1.showOpenDialog(this) == JFileChooser.APPROVE_OPTION) {
      String sFilename = jFileChooser1.getSelectedFile().getPath();
      loadFile(sFilename);
    }
  }

  private void loadFile(String sFilename) {
     editor1.setText ( sFilename );
  }



  private void mnCopy_click() {
    editor2.setText ( editor1.getText() );
  }


  public static void main(String[] args) {
    Vorl04 frame = new Vorl04();
    frame.setVisible(true);
 }

}  // Vorl04