import java.io.*;
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import javax.swing.filechooser.*;
public class FileChooser extends JPanel implements ActionListener
{
static private final String newline = "\n";
JButton openButton, saveButton;
JTextArea log;
JFileChooser fc;
static JButton button;
static File open;
static File save;
public FileChooser() {
super(new BorderLayout());
//Create the log first, because the action listeners
//need to refer to it.
log = new JTextArea(5,20);
log.setMargin(new Insets(5,5,5,5));
log.setEditable(false);
JScrollPane logScrollPane = new JScrollPane(log);
//Create a file chooser
fc = new JFileChooser();
//Create the open button. We use the image from the JLF
//Graphics Repository (but we extracted it from the jar).
openButton = new JButton("Open ini...");
openButton.addActionListener(this);
//Create the save button. We use the image from the JLF
//Graphics Repository (but we extracted it from the jar).
saveButton = new JButton("Save wimport_data...");
saveButton.addActionListener(this);
//For layout purposes, put the buttons in a separate panel
JPanel buttonPanel = new JPanel(); //use FlowLayout
buttonPanel.add(openButton);
buttonPanel.add(saveButton);
//Add the buttons and the log to this panel.
add(buttonPanel, BorderLayout.PAGE_START);
add(logScrollPane, BorderLayout.CENTER);
}
public void actionPerformed(ActionEvent e) {
//Handle open button action.
if (e.getSource() == openButton) {
int returnVal = fc.showOpenDialog(FileChooser.this);
if (returnVal == JFileChooser.APPROVE_OPTION) {
File file = fc.getSelectedFile();
open = file;
//This is where a real application would open the file.
log.append("Öffne: " + file.getName() + "." + newline);
} else {
log.append("Abbruch." + newline);
}
log.setCaretPosition(log.getDocument().getLength());
//Handle save button action.
} else if (e.getSource() == saveButton) {
int returnVal = fc.showSaveDialog(FileChooser.this);
if (returnVal == JFileChooser.APPROVE_OPTION) {
File file = fc.getSelectedFile();
save = file;
//This is where a real application would save the file.
log.append("Speichere: " + file.getName() + "." + newline);
} else {
log.append("Abbruch." + newline);
}
log.setCaretPosition(log.getDocument().getLength());
}
}
/** Returns an ImageIcon, or null if the path was invalid. */
protected static ImageIcon createImageIcon(String path) {
java.net.URL imgURL = FileChooser.class.getResource(path);
if (imgURL != null) {
return new ImageIcon(imgURL);
} else {
System.err.println("Couldn't find file: " + path);
return null;
}
}
/**
* Create the GUI and show it. For thread safety,
* this method should be invoked from the
* event dispatch thread.
*/
private static void createAndShowGUI() {
//Create and set up the window.
JFrame frame = new JFrame("(C)Zerr wimportconverter");
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
// Container pane = frame.getContentPane();
//Add content to the window.
frame.add(new FileChooser(), BorderLayout.NORTH);
//Display the window.
frame.setVisible(true);
button = new JButton("Ausführen");
frame.add(button, BorderLayout.SOUTH);
button.addActionListener(new ActionListener(){
@Override
public void actionPerformed(ActionEvent arg0) {
// TODO1: Verarbeite die Datei open
FileReader read = new FileReader(open);
BufferedReader br = new BufferedReader(read);
String zeilegelesen = br.realLine();
// TODO2: Schreibe etwas in die Datei Save
void arrayToFile(File save) throws IOException{
FileWriter fr = new FileWriter(save);
BufferedWriter br = new BufferedWriter(fr);
br.newLine();
br.wirte("Hallo Welt");
}});
frame.pack();
}
public static void main(String[] args) {
//Schedule a job for the event dispatch thread:
//creating and showing this application's GUI.
SwingUtilities.invokeLater(new Runnable() {
public void run() {
//Turn off metal's use of bold fonts
UIManager.put("swing.boldMetal", Boolean.FALSE);
createAndShowGUI();
}
});
}
}