ch.elexis.preferences.inputs.PasswordFieldEditor.java Source code

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Here is the source code for ch.elexis.preferences.inputs.PasswordFieldEditor.java

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/*******************************************************************************
 * Copyright (c) 2007-2011, G. Weirich and Elexis
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License v1.0
 * which accompanies this distribution, and is available at
 * http://www.eclipse.org/legal/epl-v10.html
 * 
 * Contributors:
 *     G. Weirich - initial API and implementation
 ******************************************************************************/
package ch.elexis.preferences.inputs;

import org.eclipse.core.runtime.Assert;
import org.eclipse.jface.preference.StringFieldEditor;
import org.eclipse.swt.SWT;
import org.eclipse.swt.events.DisposeEvent;
import org.eclipse.swt.events.DisposeListener;
import org.eclipse.swt.events.FocusAdapter;
import org.eclipse.swt.events.FocusEvent;
import org.eclipse.swt.events.KeyAdapter;
import org.eclipse.swt.events.KeyEvent;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.swt.widgets.Text;

public class PasswordFieldEditor extends StringFieldEditor {

    Text textField;

    public PasswordFieldEditor(String name, String title, Composite parent) {
        super(name, title, parent);
    }

    /**
     * Returns this field editor's text control.
     * <p>
     * The control is created if it does not yet exist
     * </p>
     * 
     * @param parent
     *            the parent
     * @return the text control
     */
    public Text getTextControl(Composite parent) {

        if (textField == null) {
            textField = new Text(parent, SWT.SINGLE | SWT.BORDER | SWT.PASSWORD);
            textField.setFont(parent.getFont());
            textField.addDisposeListener(new DisposeListener() {
                public void widgetDisposed(DisposeEvent event) {
                    textField = null;
                }
            });

        } else {
            checkParent(textField, parent);
        }
        return textField;
    }

}