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 044package org.jfree.ui; 045 046import java.awt.Color; 047import java.awt.Dimension; 048import java.awt.Graphics; 049import java.awt.Graphics2D; 050import java.awt.Insets; 051import java.awt.Paint; 052import java.awt.geom.Rectangle2D; 053 054import javax.swing.JComponent; 055 056/** 057 * A panel that displays a paint sample. 058 * 059 * @author David Gilbert 060 */ 061public 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}