/*

 * Copyright (c) 1997, 2014, Oracle and/or its affiliates. All rights reserved.

 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.

 *

 * This code is free software; you can redistribute it and/or modify it

 * under the terms of the GNU General Public License version 2 only, as

 * published by the Free Software Foundation.  Oracle designates this

 * particular file as subject to the "Classpath" exception as provided

 * by Oracle in the LICENSE file that accompanied this code.

 *

 * This code is distributed in the hope that it will be useful, but WITHOUT

 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or

 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License

 * version 2 for more details (a copy is included in the LICENSE file that

 * accompanied this code).

 *

 * You should have received a copy of the GNU General Public License version

 * 2 along with this work; if not, write to the Free Software Foundation,

 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.

 *

 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA

 * or visit www.oracle.com if you need additional information or have any

 * questions.

 */

package com.sun.java.swing.plaf.motif;

import javax.swing.*;

import javax.swing.plaf.basic.BasicOptionPaneUI;

import javax.swing.plaf.ComponentUI;

import java.awt.Color;

import java.awt.Component;

import java.awt.Container;

import java.awt.Dimension;

import java.awt.Graphics;

import java.awt.Insets;

import java.awt.Rectangle;

/**

 * Provides the CDE/Motif look and feel for a JOptionPane.

 * <p>

 * <strong>Warning:</strong>

 * Serialized objects of this class will not be compatible with

 * future Swing releases.  The current serialization support is appropriate

 * for short term storage or RMI between applications running the same

 * version of Swing.  A future release of Swing will provide support for

 * long term persistence.

 *

 * @author Scott Violet

 */

public class MotifOptionPaneUI extends BasicOptionPaneUI

{

    /**

      * Creates a new MotifOptionPaneUI instance.

      */

    public static ComponentUI createUI(JComponent x) {

        return new MotifOptionPaneUI();

    }

    /**

     * Creates and returns a Container containin the buttons. The buttons

     * are created by calling <code>getButtons</code>.

     */

    protected Container createButtonArea() {

        Container          b = super.createButtonArea();

        if(b != null && b.getLayout() instanceof ButtonAreaLayout) {

            ((ButtonAreaLayout)b.getLayout()).setCentersChildren(false);

        }

        return b;

    }

    /**

     * Returns null, CDE/Motif does not impose a minimum size.

     */

    public Dimension getMinimumOptionPaneSize() {

        return null;

    }

    @SuppressWarnings("serial") // anonymous class

    protected Container createSeparator() {

        return new JPanel() {

            public Dimension getPreferredSize() {

                return new Dimension(10, 2);

            }

            public void paint(Graphics g) {

                int width = getWidth();

                g.setColor(Color.darkGray);

                g.drawLine(0, 0, width, 0);

                g.setColor(Color.white);

                g.drawLine(0, 1, width, 1);

            }

        };

    }

    /**

     * Creates and adds a JLabel representing the icon returned from

     * <code>getIcon</code> to <code>top</code>. This is messaged from

     * <code>createMessageArea</code>

     */

    protected void addIcon(Container top) {

        /* Create the icon. */

        Icon                  sideIcon = getIcon();

        if (sideIcon != null) {

            JLabel            iconLabel = new JLabel(sideIcon);

            iconLabel.setVerticalAlignment(SwingConstants.CENTER);

            top.add(iconLabel, "West");

        }

    }

}