/*

 * 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

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

import java.awt.Dimension;

import java.awt.Graphics;

import java.awt.Insets;

import java.awt.Rectangle;

import javax.swing.JButton;

import javax.swing.JComponent;

import javax.swing.JScrollBar;

import javax.swing.plaf.ComponentUI;

import javax.swing.plaf.basic.BasicScrollBarUI;

import static sun.swing.SwingUtilities2.drawHLine;

import static sun.swing.SwingUtilities2.drawVLine;

/**

 * Implementation of ScrollBarUI for the Motif Look and Feel

 * <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 Rich Schiavi

 * @author Hans Muller

 */

public class MotifScrollBarUI extends BasicScrollBarUI

{

    public static ComponentUI createUI(JComponent c) {

        return new MotifScrollBarUI();

    }

    public Dimension getPreferredSize(JComponent c) {

        Insets insets = c.getInsets();

        int dx = insets.left + insets.right;

        int dy = insets.top + insets.bottom;

        return (scrollbar.getOrientation() == JScrollBar.VERTICAL)

            ? new Dimension(dx + 11, dy + 33)

            : new Dimension(dx + 33, dy + 11);

    }

    protected JButton createDecreaseButton(int orientation) {

        return new MotifScrollBarButton(orientation);

    }

    protected JButton createIncreaseButton(int orientation) {

        return new MotifScrollBarButton(orientation);

    }

    public void paintTrack(Graphics g, JComponent c, Rectangle trackBounds)  {

        g.setColor(trackColor);

        g.fillRect(trackBounds.x, trackBounds.y, trackBounds.width, trackBounds.height);

    }

    public void paintThumb(Graphics g, JComponent c, Rectangle thumbBounds) {

        if (thumbBounds.isEmpty() || !scrollbar.isEnabled()) {

            return;

        }

        int w = thumbBounds.width;

        int h = thumbBounds.height;

        g.translate(thumbBounds.x, thumbBounds.y);

        g.setColor(thumbColor);

        g.fillRect(0, 0, w - 1, h - 1);

        g.setColor(thumbHighlightColor);

        drawVLine(g, 0, 0, h - 1);

        drawHLine(g, 1, w - 1, 0);

        g.setColor(thumbLightShadowColor);

        drawHLine(g, 1, w - 1, h - 1);

        drawVLine(g, w - 1, 1, h - 2);

        g.translate(-thumbBounds.x, -thumbBounds.y);

    }

}