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 1.5 2007/11/02 17:50:36 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 import javax.swing.JComponent;
054
055 /**
056 * A panel that displays a paint sample.
057 *
058 * @author David Gilbert
059 */
060 public class PaintSample extends JComponent {
061
062 /** The paint. */
063 private Paint paint;
064
065 /** The preferred size of the component. */
066 private Dimension preferredSize;
067
068 /**
069 * Standard constructor - builds a paint sample.
070 *
071 * @param paint the paint to display.
072 */
073 public PaintSample(final Paint paint) {
074 this.paint = paint;
075 this.preferredSize = new Dimension(80, 12);
076 }
077
078 /**
079 * Returns the current Paint object being displayed in the panel.
080 *
081 * @return the paint.
082 */
083 public Paint getPaint() {
084 return this.paint;
085 }
086
087 /**
088 * Sets the Paint object being displayed in the panel.
089 *
090 * @param paint the paint.
091 */
092 public void setPaint(final Paint paint) {
093 this.paint = paint;
094 repaint();
095 }
096
097 /**
098 * Returns the preferred size of the component.
099 *
100 * @return the preferred size.
101 */
102 public Dimension getPreferredSize() {
103 return this.preferredSize;
104 }
105
106 /**
107 * Fills the component with the current Paint.
108 *
109 * @param g the graphics device.
110 */
111 public void paintComponent(final Graphics g) {
112
113 final Graphics2D g2 = (Graphics2D) g;
114 final Dimension size = getSize();
115 final Insets insets = getInsets();
116 final double xx = insets.left;
117 final double yy = insets.top;
118 final double ww = size.getWidth() - insets.left - insets.right - 1;
119 final double hh = size.getHeight() - insets.top - insets.bottom - 1;
120 final Rectangle2D area = new Rectangle2D.Double(xx, yy, ww, hh);
121 g2.setPaint(this.paint);
122 g2.fill(area);
123 g2.setPaint(Color.black);
124 g2.draw(area);
125
126 }
127
128 }