/*
 * Copyright (c) 1997, 2023, Oracle and/or its affiliates. All rights reserved.
 * ORACLE PROPRIETARY/CONFIDENTIAL. Use is subject to license terms.
 *
 *
 *
 *
 *
 *
 *
 *
 *
 *
 *
 *
 *
 *
 *
 *
 *
 *
 *
 *
 */

package javax.swing.plaf.basic;

import java.awt.Color;
import java.awt.Dimension;
import java.awt.Graphics;
import javax.swing.JComponent;
import javax.swing.JSeparator;
import javax.swing.LookAndFeel;
import javax.swing.plaf.ComponentUI;
import javax.swing.plaf.SeparatorUI;


/**
 * A Basic L&amp;F implementation of SeparatorUI.  This implementation
 * is a "combined" view/controller.
 *
 * @author Georges Saab
 * @author Jeff Shapiro
 */

public class BasicSeparatorUI extends SeparatorUI
{
    /**
     * The color of the shadow.
     */
    protected Color shadow;

    /**
     * The color of the highlighting.
     */
    protected Color highlight;

    /**
     * Constructs a {@code BasicSeparatorUI}.
     */
    public BasicSeparatorUI() {}

    /**
     * Returns a new instance of {@code BasicSeparatorUI}.
     *
     * @param c a component
     * @return a new instance of {@code BasicSeparatorUI}
     */
    public static ComponentUI createUI( JComponent c )
    {
        return new BasicSeparatorUI();
    }

    public void installUI( JComponent c )
    {
        installDefaults( (JSeparator)c );
        installListeners( (JSeparator)c );
    }

    public void uninstallUI(JComponent c)
    {
        uninstallDefaults( (JSeparator)c );
        uninstallListeners( (JSeparator)c );
    }

    /**
     * Installs default properties.
     *
     * @param s an instance of {@code JSeparator}
     */
    protected void installDefaults( JSeparator s )
    {
        LookAndFeel.installColors(s, "Separator.background", "Separator.foreground");
        LookAndFeel.installProperty(s, "opaque", Boolean.FALSE);
    }

    /**
     * Uninstalls default properties.
     *
     * @param s an instance of {@code JSeparator}
     */
    protected void uninstallDefaults( JSeparator s )
    {
    }

    /**
     * Registers listeners.
     *
     * @param s an instance of {@code JSeparator}
     */
    protected void installListeners( JSeparator s )
    {
    }

    /**
     * Unregisters listeners.
     *
     * @param s an instance of {@code JSeparator}
     */
    protected void uninstallListeners( JSeparator s )
    {
    }

    public void paint( Graphics g, JComponent c )
    {
        Dimension s = c.getSize();

        if ( ((JSeparator)c).getOrientation() == JSeparator.VERTICAL )
        {
          g.setColor( c.getForeground() );
          g.drawLine( 0, 0, 0, s.height );

          g.setColor( c.getBackground() );
          g.drawLine( 1, 0, 1, s.height );
        }
        else  // HORIZONTAL
        {
          g.setColor( c.getForeground() );
          g.drawLine( 0, 0, s.width, 0 );

          g.setColor( c.getBackground() );
          g.drawLine( 0, 1, s.width, 1 );
        }
    }

    public Dimension getPreferredSize( JComponent c )
    {
        if ( ((JSeparator)c).getOrientation() == JSeparator.VERTICAL )
            return new Dimension( 2, 0 );
        else
            return new Dimension( 0, 2 );
    }

    public Dimension getMinimumSize( JComponent c ) { return null; }

    public Dimension getMaximumSize( JComponent c ) {
        Dimension d = getPreferredSize(c);
        if (((JSeparator)c).getOrientation() == JSeparator.VERTICAL) {
            return new Dimension(d.width, Short.MAX_VALUE);
        } else {
            return new Dimension(Short.MAX_VALUE, d.height);
        }
    }
}
