001 /* ========================================================================
002 * JCommon : a free general purpose class library for the Java(tm) platform
003 * ========================================================================
004 *
005 * (C) Copyright 2000-2005, by Object Refinery Limited and Contributors.
006 *
007 * Project Info: http://www.jfree.org/jcommon/index.html
008 *
009 * This library is free software; you can redistribute it and/or modify it
010 * under the terms of the GNU Lesser General Public License as published by
011 * the Free Software Foundation; either version 2.1 of the License, or
012 * (at your option) any later version.
013 *
014 * This library is distributed in the hope that it will be useful, but
015 * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
016 * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
017 * License for more details.
018 *
019 * You should have received a copy of the GNU Lesser General Public
020 * License along with this library; if not, write to the Free Software
021 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
022 * USA.
023 *
024 * [Java is a trademark or registered trademark of Sun Microsystems, Inc.
025 * in the United States and other countries.]
026 *
027 * ----------------
028 * PaintSample.java
029 * ----------------
030 * (C) Copyright 2000-2004, by Object Refinery Limited.
031 *
032 * Original Author: David Gilbert (for Object Refinery Limited);
033 * Contributor(s): -;
034 *
035 * $Id: PaintSample.java,v 1.4 2005/11/16 15:58:41 taqua Exp $
036 *
037 * Changes (from 26-Oct-2001)
038 * --------------------------
039 * 26-Oct-2001 : Changed package to com.jrefinery.ui.*;
040 * 14-Oct-2002 : Fixed errors reported by Checkstyle (DG);
041 *
042 */
043
044 package org.jfree.ui;
045
046 import java.awt.Color;
047 import java.awt.Dimension;
048 import java.awt.Graphics;
049 import java.awt.Graphics2D;
050 import java.awt.Insets;
051 import java.awt.Paint;
052 import java.awt.geom.Rectangle2D;
053
054 import javax.swing.JComponent;
055
056 /**
057 * A panel that displays a paint sample.
058 *
059 * @author David Gilbert
060 */
061 public class PaintSample extends JComponent {
062
063 /** The paint. */
064 private Paint paint;
065
066 /** The preferred size of the component. */
067 private Dimension preferredSize;
068
069 /**
070 * Standard constructor - builds a paint sample.
071 *
072 * @param paint the paint to display.
073 */
074 public PaintSample(final Paint paint) {
075 this.paint = paint;
076 this.preferredSize = new Dimension(80, 12);
077 }
078
079 /**
080 * Returns the current Paint object being displayed in the panel.
081 *
082 * @return the paint.
083 */
084 public Paint getPaint() {
085 return this.paint;
086 }
087
088 /**
089 * Sets the Paint object being displayed in the panel.
090 *
091 * @param paint the paint.
092 */
093 public void setPaint(final Paint paint) {
094 this.paint = paint;
095 repaint();
096 }
097
098 /**
099 * Returns the preferred size of the component.
100 *
101 * @return the preferred size.
102 */
103 public Dimension getPreferredSize() {
104 return this.preferredSize;
105 }
106
107 /**
108 * Fills the component with the current Paint.
109 *
110 * @param g the graphics device.
111 */
112 public void paintComponent(final Graphics g) {
113
114 final Graphics2D g2 = (Graphics2D) g;
115 final Dimension size = getSize();
116 final Insets insets = getInsets();
117 final double xx = insets.left;
118 final double yy = insets.top;
119 final double ww = size.getWidth() - insets.left - insets.right - 1;
120 final double hh = size.getHeight() - insets.top - insets.bottom - 1;
121 final Rectangle2D area = new Rectangle2D.Double(xx, yy, ww, hh);
122 g2.setPaint(this.paint);
123 g2.fill(area);
124 g2.setPaint(Color.black);
125 g2.draw(area);
126
127 }
128
129 }