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
120: - 1;
121: final double hh = size.getHeight() - insets.top - insets.bottom
122: - 1;
123: final Rectangle2D area = new Rectangle2D.Double(xx, yy, ww, hh);
124: g2.setPaint(this.paint);
125: g2.fill(area);
126: g2.setPaint(Color.black);
127: g2.draw(area);
128:
129: }
130:
131: }
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