import java.awt.Color;
import java.awt.GridLayout;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.io.BufferedReader;
import java.io.FileNotFoundException;
import java.io.FileReader;
import java.io.IOException;
import java.util.ArrayList;

import javax.swing.JDialog;
import javax.swing.JFileChooser;
import javax.swing.JLabel;
import javax.swing.JMenu;
import javax.swing.JMenuBar;
import javax.swing.JMenuItem;
import javax.swing.JTextArea;
import javax.swing.JTextField;
import javax.swing.border.Border;
import javax.swing.border.LineBorder;


public class Start {

    protected static String fileName;

    /**
     * @param args
     */
    public static void main(String[] args) {

        final ArrayList<String> lines = new ArrayList<String>();
        final JTextArea workplace = new JTextArea();

        //Layout erzeugen und setzen

        final JDialog dialog = new JDialog();
        dialog.setTitle("Editor");
        dialog.setSize(500, 500);
        dialog.setLayout(new GridLayout());

        //Menüleiste + Rahmen erzeugen

        JMenuBar menuBar = new JMenuBar();
        Border bo = new LineBorder(Color.DARK_GRAY);
        menuBar.setBorder(bo);

        //Oberpunkte erzeugen

        JMenu file = new JMenu("Datei");
        JMenu help = new JMenu("Hilfe");

        //Unterpunkte erzeugen

        //Öffnenitem
        JMenuItem openFile = new JMenuItem("Öffnen");
        openFile.addActionListener(new ActionListener() {
            public void actionPerformed(ActionEvent e) {
                JFileChooser fileChooseDialog = new JFileChooser();
                int i = fileChooseDialog.showOpenDialog( null );
                if (i == JFileChooser.APPROVE_OPTION) {
                    fileName = fileChooseDialog.getSelectedFile().getPath();

                    //Variable zum Speichern der Zeilenanzahl in der TxtDatei
                    int countLines = 0;
                    try {
                        BufferedReader reader = new BufferedReader(new FileReader(fileName));
                        String line = null;

                        try {
                            while ((line = reader.readLine()) != null) {
                                lines.add(line);
                                countLines++;
                            }
                        } catch (IOException e1) {
                            e1.printStackTrace();
                        }
                    } catch (FileNotFoundException e1) {
                        e1.printStackTrace();
                    }

                    String lineArray[] = new String[lines.size()];
                    lineArray = lines.toArray(lineArray);

                    //Fläche für Ausgabe der Textdatei
                    workplace.setLineWrap(true);
                    workplace.setWrapStyleWord(true);

                    //Dateiinhalt in Textarea schreiben
                    for (String oneLine : lineArray) {
                        workplace.append(oneLine + "\n");
                    }
                    dialog.add(workplace);
                }
            }
        });

        //Speichernitem
        JMenuItem saveFile = new JMenuItem("Speichern");
        saveFile.addActionListener(new ActionListener() {
            public void actionPerformed(ActionEvent e) {
                JFileChooser fileSaveDialog = new JFileChooser();
                fileSaveDialog.showSaveDialog(null);
                System.out.println(fileName);
                String text = workplace.getText();
                System.out.println(text);
            }
        });

        //Beendenitem
        JMenuItem closeApp = new JMenuItem("Beenden");
        closeApp.addActionListener(new ActionListener() {
            public void actionPerformed(ActionEvent e) {
                System.exit(0);
            }
        });

        //Unterpunkte hinzufügen
        file.add(openFile);
        file.add(saveFile);
        file.add(closeApp);

        //Oberpunkte hinzufügen
        menuBar.add(file);
        menuBar.add(help);

        //Menüleiste erzeugen und sichtbar machen
        dialog.setJMenuBar(menuBar);
        dialog.setVisible(true);
    }
}