Application: gvSIG desktop

/*

 * The Unified Mapping Platform (JUMP) is an extensible, interactive GUI

 * for visualizing and manipulating spatial features with geometry and attributes.

 *

 * Copyright (C) 2003 Vivid Solutions

 *

 * 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.

 *

 * For more information, contact:

 *

 * Vivid Solutions

 * Suite #1A

 * 2328 Government Street

 * Victoria BC  V8T 5G5

 * Canada

 *

 * (250)385-6040

 * www.vividsolutions.com

 */

package com.iver.cit.gvsig.gui.Panels;

import java.awt.BasicStroke;

import java.awt.Color;

import java.awt.Graphics;

import java.awt.Graphics2D;

import javax.swing.JPanel;

/**

 * Displays a colour.

 */

public class ColorPanel extends JPanel {

    private Color fillColor = Color.red;

    private Color lineColor = Color.green;

    private int margin = 0;

    public ColorPanel() {

        setBackground(Color.white);

    }

    protected void paintComponent(Graphics g) {

        super.paintComponent(g);

        //Before I simply set the ColorPanel's background colour. But I found this

        //caused weird paint effects e.g. a second copy of the panel appearing

        //at the top left corner of the rendered image. [Jon Aquino].

        //<<TODO:DESIGN>> Use the GraphicsState class [Jon Aquino]

        Color originalColor = g.getColor();

        g.setColor(getBackground());

        ((Graphics2D)g).setStroke(fillStroke);

        g.fillRect(0, 0, getWidth() - 1, getHeight() - 1);

        g.setColor(fillColor);

        g.fillRect(margin, margin, getWidth() - 1 - margin - margin,

            getHeight() - 1 - margin - margin);

        if (lineColor != null) {

            g.setColor(lineColor);

            ((Graphics2D)g).setStroke(lineStroke);

            //-1 to ensure the rectangle doesn't extend past the panel [Jon Aquino]

            g.drawRect(margin, margin, getWidth() - 1 - margin - margin,

                getHeight() - 1 - margin - margin);

        }

        //<<TODO:DESIGN>> Put the next line in a finally block [Jon Aquino]

        g.setColor(originalColor);

    }

    /** Workaround for bug 4238829 in the Java bug database */

    public void setBounds(int x, int y, int w, int h) {

        super.setBounds(x, y, w, h);

        validate();

    }

    public void setFillColor(Color fillColor) {

        this.fillColor = fillColor;

    }

    /**

     * @param lineColor the new line colour, or null to not draw the line

     */

    public void setLineColor(Color lineColor) {

        this.lineColor = lineColor;

    }

    public void setMargin(int margin) {

        this.margin = margin;

    }

    public Color getFillColor() {

        return fillColor;

    }

    public Color getLineColor() {

        return lineColor;

    }

    private BasicStroke fillStroke = new BasicStroke(1);

    private int lineWidth = 1;

    private BasicStroke lineStroke = new BasicStroke(lineWidth);

    public void setLineWidth(int lineWidth) {

        lineStroke = new BasicStroke(lineWidth);

        this.lineWidth = lineWidth;

    }

    public int getLineWidth() {

        return lineWidth;

    }

}