/*

 * Copyright (c) 1997, 2006, 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 java.awt.*;

import java.awt.event.*;

import java.io.*;

import java.util.*;

import javax.swing.*;

import javax.swing.plaf.*;

import javax.swing.tree.*;

import javax.swing.plaf.basic.*;

/**

 * Motif rendition of the tree component.

 * <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 Jeff Dinkins

 */

public class MotifTreeUI extends BasicTreeUI

{

    static final int HALF_SIZE = 7;

    static final int SIZE = 14;

    /**

     * creates a UI object to represent a Motif Tree widget

     */

    public MotifTreeUI() {

        super();

    }

    public void installUI(JComponent c) {

        super.installUI(c);

    }

    // BasicTreeUI overrides

    protected void paintVerticalLine( Graphics g, JComponent c, int x, int top, int bottom )

      {

          if (tree.getComponentOrientation().isLeftToRight()) {

              g.fillRect( x, top, 2, bottom - top + 2 );

          } else {

              g.fillRect( x - 1, top, 2, bottom - top + 2 );

          }

      }

    protected void paintHorizontalLine( Graphics g, JComponent c, int y, int left, int right )

      {

          g.fillRect( left, y, right - left + 1, 2 );

      }

    /**

     * The minus sign button icon.

     * <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.

     */

    public static class MotifExpandedIcon implements Icon, Serializable {

        static Color bg;

        static Color fg;

        static Color highlight;

        static Color shadow;

        public MotifExpandedIcon() {

            bg = UIManager.getColor("Tree.iconBackground");

            fg = UIManager.getColor("Tree.iconForeground");

            highlight = UIManager.getColor("Tree.iconHighlight");

            shadow = UIManager.getColor("Tree.iconShadow");

        }

        public static Icon createExpandedIcon() {

            return new MotifExpandedIcon();

        }

        public void paintIcon(Component c, Graphics g, int x, int y) {

            g.setColor(highlight);

            g.drawLine(x, y, x+SIZE-1, y);

            g.drawLine(x, y+1, x, y+SIZE-1);

            g.setColor(shadow);

            g.drawLine(x+SIZE-1, y+1, x+SIZE-1, y+SIZE-1);

            g.drawLine(x+1, y+SIZE-1, x+SIZE-1, y+SIZE-1);

            g.setColor(bg);

            g.fillRect(x+1, y+1, SIZE-2, SIZE-2);

            g.setColor(fg);

            g.drawLine(x+3, y+HALF_SIZE-1, x+SIZE-4, y+HALF_SIZE-1);

            g.drawLine(x+3, y+HALF_SIZE, x+SIZE-4, y+HALF_SIZE);

        }

        public int getIconWidth() { return SIZE; }

        public int getIconHeight() { return SIZE; }

    }

    /**

     * The plus sign button icon.

     * <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.

     */

    public static class MotifCollapsedIcon extends MotifExpandedIcon {

        public static Icon createCollapsedIcon() {

            return new MotifCollapsedIcon();

        }

        public void paintIcon(Component c, Graphics g, int x, int y) {

            super.paintIcon(c, g, x, y);

            g.drawLine(x + HALF_SIZE-1, y + 3, x + HALF_SIZE-1, y + (SIZE - 4));

            g.drawLine(x + HALF_SIZE, y + 3, x + HALF_SIZE, y + (SIZE - 4));

        }

    }

    public static ComponentUI createUI(JComponent x) {

        return new MotifTreeUI();

    }

    /**

     * Returns the default cell renderer that is used to do the

     * stamping of each node.

     */

    public TreeCellRenderer createDefaultCellRenderer() {

        return new MotifTreeCellRenderer();

    }

}