BevelArrowIcon.java

//$HeadURL$
/*----------------------------------------------------------------------------
 This file is part of deegree, http://deegree.org/
 Copyright (C) 2001-2009 by:
 - Department of Geography, University of Bonn -
 and
 - lat/lon GmbH -

 This library is free software; you can redistribute it and/or modify it under
 the terms of the GNU Lesser General Public License as published by the Free
 Software Foundation; either version 2.1 of the License, or (at your option)
 any later version.
 This library 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 Lesser General Public License for more
 details.
 You should have received a copy of the GNU Lesser General Public License
 along with this library; if not, write to the Free Software Foundation, Inc.,
 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA

 Contact information:

 lat/lon GmbH
 Aennchenstr. 19, 53177 Bonn
 Germany
 http://lat-lon.de/

 Department of Geography, University of Bonn
 Prof. Dr. Klaus Greve
 Postfach 1147, 53001 Bonn
 Germany
 http://www.geographie.uni-bonn.de/deegree/

 e-mail: info@deegree.org
 ----------------------------------------------------------------------------*/
package org.deegree.igeo.views.swing.util.table;

import java.awt.Color;
import java.awt.Component;
import java.awt.Graphics;

import javax.swing.Icon;
import javax.swing.UIManager;

/**
 * TODO add class documentation here
 * 
 * @author <a href="mailto:name@deegree.org">Andreas Poth</a>
 * @author <a href="http://www.esus.com/docs/GetQuestionPage.jsp?uid=1270&type=pf">Nobuo Tamemasa</a>
 * @author last edited by: $Author$
 * 
 * @version $Revision$, $Date$
 */
public class BevelArrowIcon implements Icon {
    public static final int UP = 0; // direction

    public static final int DOWN = 1;

    private static final int DEFAULT_SIZE = 11;

    private Color edge1;

    private Color edge2;

    private Color fill;

    private int size;

    private int direction;

    /**
     * 
     * @param direction
     * @param isRaisedView
     * @param isPressedView
     */
    public BevelArrowIcon( int direction, boolean isRaisedView, boolean isPressedView ) {
        if ( isRaisedView ) {
            if ( isPressedView ) {
                init( UIManager.getColor( "controlLtHighlight" ), UIManager.getColor( "controlDkShadow" ),
                      UIManager.getColor( "controlShadow" ), DEFAULT_SIZE, direction );
            } else {
                init( UIManager.getColor( "controlHighlight" ), UIManager.getColor( "controlShadow" ),
                      UIManager.getColor( "control" ), DEFAULT_SIZE, direction );
            }
        } else {
            if ( isPressedView ) {
                init( UIManager.getColor( "controlDkShadow" ), UIManager.getColor( "controlLtHighlight" ),
                      UIManager.getColor( "controlShadow" ), DEFAULT_SIZE, direction );
            } else {
                init( UIManager.getColor( "controlShadow" ), UIManager.getColor( "controlHighlight" ),
                      UIManager.getColor( "control" ), DEFAULT_SIZE, direction );
            }
        }
    }

    public BevelArrowIcon( Color edge1, Color edge2, Color fill, int size, int direction ) {
        init( edge1, edge2, fill, size, direction );
    }

    public void paintIcon( Component c, Graphics g, int x, int y ) {
        switch ( direction ) {
        case DOWN:
            drawDownArrow( g, x, y );
            break;
        case UP:
            drawUpArrow( g, x, y );
            break;
        }
    }

    public int getIconWidth() {
        return size;
    }

    public int getIconHeight() {
        return size;
    }

    private void init( Color edge1, Color edge2, Color fill, int size, int direction ) {
        this.edge1 = edge1;
        this.edge2 = edge2;
        this.fill = fill;
        this.size = size;
        this.direction = direction;
    }

    private void drawDownArrow( Graphics g, int xo, int yo ) {
        g.setColor( edge1 );
        g.drawLine( xo, yo, xo + size - 1, yo );
        g.drawLine( xo, yo + 1, xo + size - 3, yo + 1 );
        g.setColor( edge2 );
        g.drawLine( xo + size - 2, yo + 1, xo + size - 1, yo + 1 );
        int x = xo + 1;
        int y = yo + 2;
        int dx = size - 6;
        while ( y + 1 < yo + size ) {
            g.setColor( edge1 );
            g.drawLine( x, y, x + 1, y );
            g.drawLine( x, y + 1, x + 1, y + 1 );
            if ( 0 < dx ) {
                g.setColor( fill );
                g.drawLine( x + 2, y, x + 1 + dx, y );
                g.drawLine( x + 2, y + 1, x + 1 + dx, y + 1 );
            }
            g.setColor( edge2 );
            g.drawLine( x + dx + 2, y, x + dx + 3, y );
            g.drawLine( x + dx + 2, y + 1, x + dx + 3, y + 1 );
            x += 1;
            y += 2;
            dx -= 2;
        }
        g.setColor( edge1 );
        g.drawLine( xo + ( size / 2 ), yo + size - 1, xo + ( size / 2 ), yo + size - 1 );
    }

    private void drawUpArrow( Graphics g, int xo, int yo ) {
        g.setColor( edge1 );
        int x = xo + ( size / 2 );
        g.drawLine( x, yo, x, yo );
        x--;
        int y = yo + 1;
        int dx = 0;
        while ( y + 3 < yo + size ) {
            g.setColor( edge1 );
            g.drawLine( x, y, x + 1, y );
            g.drawLine( x, y + 1, x + 1, y + 1 );
            if ( 0 < dx ) {
                g.setColor( fill );
                g.drawLine( x + 2, y, x + 1 + dx, y );
                g.drawLine( x + 2, y + 1, x + 1 + dx, y + 1 );
            }
            g.setColor( edge2 );
            g.drawLine( x + dx + 2, y, x + dx + 3, y );
            g.drawLine( x + dx + 2, y + 1, x + dx + 3, y + 1 );
            x -= 1;
            y += 2;
            dx += 2;
        }
        g.setColor( edge1 );
        g.drawLine( xo, yo + size - 3, xo + 1, yo + size - 3 );
        g.setColor( edge2 );
        g.drawLine( xo + 2, yo + size - 2, xo + size - 1, yo + size - 2 );
        g.drawLine( xo, yo + size - 1, xo + size, yo + size - 1 );
    }
}