ActionAdapter.java

package org.herac.tuxguitar.gui.actions;

import org.eclipse.swt.SWT;
import org.eclipse.swt.events.MenuEvent;
import org.eclipse.swt.events.MenuListener;
import org.eclipse.swt.events.MouseEvent;
import org.eclipse.swt.events.MouseListener;
import org.eclipse.swt.events.SelectionEvent;
import org.eclipse.swt.events.SelectionListener;
import org.eclipse.swt.events.ShellEvent;
import org.eclipse.swt.events.ShellListener;
import org.eclipse.swt.events.TypedEvent;
import org.eclipse.swt.widgets.Button;
import org.eclipse.swt.widgets.MenuItem;
import org.eclipse.swt.widgets.ToolItem;

public abstract class ActionAdapter implements SelectionListener,
    MouseListener, MenuListener, ShellListener {

  public void menuHidden(MenuEvent e) {
    // Override me
  }

  public void menuShown(MenuEvent e) {
    process(e);
  }

  public void mouseDoubleClick(MouseEvent e) {
    // Override me
  }

  public void mouseDown(MouseEvent e) {
    // Override me
  }

  public void mouseUp(MouseEvent e) {
    process(e);
  }

  public abstract void process(TypedEvent e);

  public void shellActivated(ShellEvent e) {
    // Override me
  }

  public void shellClosed(ShellEvent e) {
    e.doit = false;
    process(e);
  }

  public void shellDeactivated(ShellEvent e) {
    // Override me
  }

  public void shellDeiconified(ShellEvent e) {
    // Override me
  }

  public void shellIconified(ShellEvent e) {
    // Override me
  }

  public void widgetDefaultSelected(SelectionEvent e) {
    // Override me
  }

  public void widgetSelected(SelectionEvent e) {
    if (e.widget != null && (e.widget.getStyle() & SWT.RADIO) != 0) {
      if (e.widget instanceof Button && !((Button) e.widget).getSelection()) {
        return;
      }
      if (e.widget instanceof ToolItem && !((ToolItem) e.widget).getSelection()) {
        return;
      }
      if (e.widget instanceof MenuItem && !((MenuItem) e.widget).getSelection()) {
        return;
      }
    }
    process(e);
  }

}