Substance API

API method

Description

Unregisters a listener on skin change.

Parameters:

• skinChangeListener - The listener to unregister.

See also

• setSkin(String) API.
• setSkin(SubstanceSkin) API.
• registerSkinChangeListener(SkinChangeListener) API.

Sample code

import java.awt.BorderLayout;
import java.awt.FlowLayout;
import java.awt.event.*;
import java.util.Vector;

import javax.swing.*;

import org.pushingpixels.substance.api.SubstanceLookAndFeel;
import org.pushingpixels.substance.api.skin.*;

/**
 * Test application that shows the use of the
 * {@link SubstanceLookAndFeel#registerSkinChangeListener(SkinChangeListener)}
 * API.
 * 
 * @author Kirill Grouchnikov
 * @see SubstanceLookAndFeel#registerSkinChangeListener(SkinChangeListener)
 */
public class UnregisterSkinChangeListener extends JFrame {
  /**
   * Listener instance.
   */
  private SkinChangeListener listener;

  /**
   * Creates the main frame for <code>this</code> sample.
   */
  public UnregisterSkinChangeListener() {
    super("Register skin change listener");

    this.setLayout(new BorderLayout());

    JPanel panel = new JPanel(new FlowLayout());

    // Get all skin display names and set the vector as a model
    // for combobox.
    final JComboBox cb = new JComboBox(new Vector<String>(
        SubstanceLookAndFeel.getAllSkins().keySet()));
    cb.setSelectedIndex(-1);

    cb.addItemListener(new ItemListener() {
      public void itemStateChanged(ItemEvent evt) {
        // Get the affected item
        final Object item = evt.getItem();

        if (evt.getStateChange() == ItemEvent.SELECTED) {
          SwingUtilities.invokeLater(new Runnable() {
            public void run() {
              try {
                // Get the skin info object based on
                // the selected skin display name
                SkinInfo skinInfo = SubstanceLookAndFeel
                    .getAllSkins().get(item);
                // Set the global skin based on the
                // skin class name.
                SubstanceLookAndFeel.setSkin(skinInfo
                    .getClassName());
                SwingUtilities
                    .updateComponentTreeUI(UnregisterSkinChangeListener.this);
              } catch (Exception exc) {
              }
            };
          });
        }
      }
    });

    panel.add(new JLabel("All skins:"));
    panel.add(cb);

    JPanel controls = new JPanel(new FlowLayout(FlowLayout.RIGHT));
    final JButton unregisterListener = new JButton("Unregister listener");
    unregisterListener.addActionListener(new ActionListener() {
      public void actionPerformed(ActionEvent e) {
        SwingUtilities.invokeLater(new Runnable() {
          public void run() {
            unregisterListener.setEnabled(false);
            // unregister listener
            SubstanceLookAndFeel
                .unregisterSkinChangeListener(listener);
          }
        });
      }
    });
    controls.add(unregisterListener);
    this.add(controls, BorderLayout.SOUTH);

    this.add(panel, BorderLayout.CENTER);

    // register listener
    SubstanceLookAndFeel
        .registerSkinChangeListener(listener = new SkinChangeListener() {
          public void skinChanged() {
            // show dialog with skin changed message.
            SwingUtilities.invokeLater(new Runnable() {
              public void run() {
                JOptionPane.showMessageDialog(
                    UnregisterSkinChangeListener.this,
                    "Skin changed");
              }
            });
          }
        });

    this.setSize(400, 200);
    this.setLocationRelativeTo(null);
    this.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
  }

  /**
   * The main method for <code>this</code> sample. The arguments are ignored.
   * 
   * @param args
   *            Ignored.
   */
  public static void main(String[] args) {
    JFrame.setDefaultLookAndFeelDecorated(true);
    JDialog.setDefaultLookAndFeelDecorated(true);
    SwingUtilities.invokeLater(new Runnable() {
      public void run() {
        SubstanceLookAndFeel.setSkin(new BusinessBlackSteelSkin());
        new UnregisterSkinChangeListener().setVisible(true);
      }
    });
  }
}