Hey guys! I've created this program that allows the user to get a .txt file from anywhere in the hard drive and it displays the contents in the text area. My question is: how can I edit my code so that it only allows picture files to be selected(jpg and png) and displays the picture in the text area?
Here's my code by the way:
/*
* To change this template, choose Tools | Templates
* and open the template in the editor.
*/
/*
* FacebookTag.java
*
* Created on Nov 22, 2011, 3:42:32 AM
*/
package facebooktage.resources;
import java.io.File;
import java.io.FileReader;
import java.io.IOException;
import javax.swing.JFileChooser;
class MyCustomFilter extends javax.swing.filechooser.FileFilter {
@Override
public boolean accept(File file) {
// Allow only directories, or files with ".txt" extension
return file.isDirectory() || file.getAbsolutePath().endsWith(".txt");
}
@Override
public String getDescription() {
// This description will be displayed in the dialog,
// hard-coded = ugly, should be done via I18N
return "Text documents (*.txt)";
}
}
/**
*
* @author Kevin
*/
public class FacebookTag extends javax.swing.JFrame {
/** Creates new form FacebookTag */
public FacebookTag() {
initComponents();
}
/** This method is called from within the constructor to
* initialize the form.
* WARNING: Do NOT modify this code. The content of this method is
* always regenerated by the Form Editor.
*/
@SuppressWarnings("unchecked")
// <editor-fold defaultstate="collapsed" desc="Generated Code">
private void initComponents() {
jScrollPane1 = new javax.swing.JScrollPane();
textarea = new javax.swing.JTextArea();
jFileChooser1 = new javax.swing.JFileChooser();
jMenuBar1 = new javax.swing.JMenuBar();
jMenu1 = new javax.swing.JMenu();
Open = new javax.swing.JMenuItem();
Exit = new javax.swing.JMenuItem();
setDefaultCloseOperation(javax.swing.WindowConstants.EXIT_ON_CLOSE);
setTitle("FacebookTag");
textarea.setColumns(20);
textarea.setRows(5);
jScrollPane1.setViewportView(textarea);
jFileChooser1.setDialogTitle("opendialog");
jFileChooser1.setFileFilter(new MyCustomFilter());
jMenu1.setText("File");
jMenu1.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
jMenu1ActionPerformed(evt);
}
});
Open.setText("Open");
Open.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
OpenActionPerformed(evt);
}
});
jMenu1.add(Open);
Exit.setText("Exit");
Exit.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
ExitActionPerformed(evt);
}
});
jMenu1.add(Exit);
jMenuBar1.add(jMenu1);
setJMenuBar(jMenuBar1);
javax.swing.GroupLayout layout = new javax.swing.GroupLayout(getContentPane());
getContentPane().setLayout(layout);
layout.setHorizontalGroup(
layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(layout.createSequentialGroup()
.addContainerGap()
.addComponent(jScrollPane1, javax.swing.GroupLayout.PREFERRED_SIZE, 592, javax.swing.GroupLayout.PREFERRED_SIZE)
.addContainerGap(javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE))
.addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(layout.createSequentialGroup()
.addGap(0, 15, Short.MAX_VALUE)
.addComponent(jFileChooser1, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)
.addGap(0, 15, Short.MAX_VALUE)))
);
layout.setVerticalGroup(
layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(layout.createSequentialGroup()
.addContainerGap()
.addComponent(jScrollPane1, javax.swing.GroupLayout.PREFERRED_SIZE, 309, javax.swing.GroupLayout.PREFERRED_SIZE)
.addContainerGap(77, Short.MAX_VALUE))
.addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(layout.createSequentialGroup()
.addGap(0, 0, Short.MAX_VALUE)
.addComponent(jFileChooser1, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)
.addGap(0, 0, Short.MAX_VALUE)))
);
pack();
}// </editor-fold>
private void jMenu1ActionPerformed(java.awt.event.ActionEvent evt) {
// TODO add your handling code here:
}
private void OpenActionPerformed(java.awt.event.ActionEvent evt) {
int returnVal = jFileChooser1.showOpenDialog(this);
if (returnVal == JFileChooser.APPROVE_OPTION) {
File file = jFileChooser1.getSelectedFile();
try {
// What to do with the file, e.g. display it in a TextArea
textarea.read( new FileReader( file.getAbsolutePath() ), null );
} catch (IOException ex) {
System.out.println("problem accessing file"+file.getAbsolutePath());
}
} else {
System.out.println("File access cancelled by user.");
}
}
private void ExitActionPerformed(java.awt.event.ActionEvent evt) {
System.exit(0);
}
/**
* @param args the command line arguments
*/
public static void main(String args[]) {
/* Set the Nimbus look and feel */
//<editor-fold defaultstate="collapsed" desc=" Look and feel setting code (optional) ">
/* If Nimbus (introduced in Java SE 6) is not available, stay with the default look and feel.
* For details see http://download.oracle.com/javase/tutorial/uiswing/lookandfeel/plaf.html
*/
try {
for (javax.swing.UIManager.LookAndFeelInfo info : javax.swing.UIManager.getInstalledLookAndFeels()) {
if ("Nimbus".equals(info.getName())) {
javax.swing.UIManager.setLookAndFeel(info.getClassName());
break;
}
}
} catch (ClassNotFoundException ex) {
java.util.logging.Logger.getLogger(FacebookTag.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
} catch (InstantiationException ex) {
java.util.logging.Logger.getLogger(FacebookTag.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
} catch (IllegalAccessException ex) {
java.util.logging.Logger.getLogger(FacebookTag.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
} catch (javax.swing.UnsupportedLookAndFeelException ex) {
java.util.logging.Logger.getLogger(FacebookTag.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
}
//</editor-fold>
/* Create and display the form */
java.awt.EventQueue.invokeLater(new Runnable() {
public void run() {
new FacebookTag().setVisible(true);
}
});
}
// Variables declaration - do not modify
private javax.swing.JMenuItem Exit;
private javax.swing.JMenuItem Open;
private javax.swing.JFileChooser jFileChooser1;
private javax.swing.JMenu jMenu1;
private javax.swing.JMenuBar jMenuBar1;
private javax.swing.JScrollPane jScrollPane1;
private javax.swing.JTextArea textarea;
// End of variables declaration
}