/*******************************************************************************
 * Copyright (c) 2006 IBM Corporation and others.
 * 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:
 *     IBM Corporation - initial API and implementation
 *******************************************************************************/
package org.eclipse.ui.examples.views.properties.tabbed.article.views;

import org.eclipse.jface.viewers.DialogCellEditor;
import org.eclipse.swt.graphics.FontData;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.swt.widgets.Control;
import org.eclipse.swt.widgets.FontDialog;
import org.eclipse.ui.PlatformUI;

/**
 * a new Font dialog cell editor.
 * 
 * @author Anthony Hunter
 */
public class FontDialogCellEditor
    extends DialogCellEditor {

    /**
     * Creates a new Font dialog cell editor parented under the given control.
     * The cell editor value is <code>null</code> initially, and has no
     * validator.
     * 
     * @param parent
     *            the parent control
     */
    protected FontDialogCellEditor(Composite parent) {
        super(parent);
    }

    /**
     * @see org.eclipse.jface.viewers.DialogCellEditor#openDialogBox(Control)
     */
    protected Object openDialogBox(Control cellEditorWindow) {
        FontDialog ftDialog = new FontDialog(PlatformUI.getWorkbench()
            .getActiveWorkbenchWindow().getShell());

        String value = (String) getValue();

        if ((value != null) && (value.length() > 0)) {
            ftDialog.setFontList(new FontData[] {new FontData(value)});
        }
        FontData fData = ftDialog.open();

        if (fData != null) {
            value = fData.toString();
        }
        return value;
    }

}