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InfoNode Look and Feel is developed by NNL Technology AB. Visit http://www.infonode.net for more information and the latest version of the library.

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/*
 * Copyright (C) 2004 NNL Technology AB
 * Visit www.infonode.net for information about InfoNode(R) 
 * products and how to contact NNL Technology AB.
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * as published by the Free Software Foundation; either version 2
 * of the License, or (at your option) any later version.
 *
 * This program 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 for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, 
 * MA 02111-1307, USA.
 */


// $Id: BorderUtil.java,v 1.6 2005/02/16 11:28:10 jesper Exp $
package net.infonode.gui.border;

import net.infonode.gui.InsetsUtil;

import javax.swing.border.Border;
import javax.swing.border.CompoundBorder;
import java.awt.*;

/**
 * @author $Author: jesper $
 * @version $Revision: 1.6 $
 */
public class BorderUtil {
  private BorderUtil() {
  }

  public static Insets getInsetsOutside(Component c, Border border, Border outside) {
    Insets insets = new Insets(0, 0, 0, 0);
    getInsetsOutside(c, border, outside, insets);
    return insets;
  }

  private static boolean getInsetsOutside(Component c, Border border, Border outside, Insets insets) {
    if (border == null)
      return false;
    else if (border == outside)
      return true;
    else if (border instanceof CompoundBorder) {
      CompoundBorder b = (CompoundBorder) border;
      return getInsetsOutside(c, b.getOutsideBorder(), outside, insets) ||
             getInsetsOutside(c, b.getInsideBorder(), outside, insets);
    }
    else {
      InsetsUtil.addTo(insets, border.getBorderInsets(c));
      return false;
    }
  }

  public static Border copy(final Border border) {
    return new Border() {
      public void paintBorder(Component c, Graphics g, int x, int y, int width, int height) {
        border.paintBorder(c, g, x, y, width, height);
      }

      public Insets getBorderInsets(Component c) {
        return border.getBorderInsets(c);
      }

      public boolean isBorderOpaque() {
        return border.isBorderOpaque();
      }
    };
  }
}