/*

 * Copyright (c) 2002, 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

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 */

package javax.swing.plaf.synth;

import javax.swing.*;

import javax.swing.plaf.ComboBoxUI;

import javax.swing.plaf.basic.BasicComboPopup;

import java.awt.*;

/**

 * Synth's ComboPopup.

 *

 * @author Scott Violet

 */

@SuppressWarnings("serial") // Superclass is not serializable across versions

class SynthComboPopup extends BasicComboPopup {

    public SynthComboPopup( JComboBox<Object> combo ) {

        super(combo);

    }

    /**

     * Configures the list which is used to hold the combo box items in the

     * popup. This method is called when the UI class

     * is created.

     *

     * @see #createList

     */

    @Override

    protected void configureList() {

        list.setFont( comboBox.getFont() );

        list.setCellRenderer( comboBox.getRenderer() );

        list.setFocusable( false );

        list.setSelectionMode( ListSelectionModel.SINGLE_SELECTION );

        int selectedIndex = comboBox.getSelectedIndex();

        if ( selectedIndex == -1 ) {

            list.clearSelection();

        }

        else {

            list.setSelectedIndex( selectedIndex );

            list.ensureIndexIsVisible( selectedIndex );

        }

        installListListeners();

    }

    /**

     * @inheritDoc

     *

     * Overridden to take into account any popup insets specified in

     * SynthComboBoxUI

     */

    @Override

    protected Rectangle computePopupBounds(int px, int py, int pw, int ph) {

        ComboBoxUI ui = comboBox.getUI();

        if (ui instanceof SynthComboBoxUI) {

            SynthComboBoxUI sui = (SynthComboBoxUI) ui;

            if (sui.popupInsets != null) {

                Insets i = sui.popupInsets;

                return super.computePopupBounds(

                        px + i.left,

                        py + i.top,

                        pw - i.left - i.right,

                        ph - i.top - i.bottom);

            }

        }

        return super.computePopupBounds(px, py, pw, ph);

    }

}