001: /* ===========================================================
002: * JFreeChart : a free chart library for the Java(tm) platform
003: * ===========================================================
004: *
005: * (C) Copyright 2000-2007, by Object Refinery Limited and Contributors.
006: *
007: * Project Info: http://www.jfree.org/jfreechart/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: * PaletteSample.java
029: * ------------------
030: * (C) Copyright 2002-2007, by David M. O'Donnell.
031: *
032: * Original Author: David M. O'Donnell;
033: * Contributor(s): David Gilbert (for Object Refinery Limited);
034: *
035: * $Id: PaletteSample.java,v 1.1.2.3 2007/04/04 09:09:52 mungady Exp $
036: *
037: * Changes
038: * -------
039: * 21-Jan-2003 : Added standard header (DG);
040: * ------------- JFREECHART 1.0.x ---------------------------------------------
041: * 31-Jan-2007 : Deprecated (DG);
042: *
043: */
044:
045: package org.jfree.chart.editor;
046:
047: import java.awt.BasicStroke;
048: import java.awt.Component;
049: import java.awt.Dimension;
050: import java.awt.Graphics;
051: import java.awt.Graphics2D;
052: import java.awt.Insets;
053: import java.awt.RenderingHints;
054: import java.awt.geom.Line2D;
055:
056: import javax.swing.JComponent;
057: import javax.swing.JList;
058: import javax.swing.ListCellRenderer;
059:
060: import org.jfree.chart.plot.ColorPalette;
061: import org.jfree.chart.plot.XYPlot;
062: import org.jfree.chart.renderer.xy.XYBlockRenderer;
063:
064: /**
065: * A panel that displays a palette sample.
066: *
067: * @deprecated This class is no longer supported (as of version 1.0.4). If
068: * you are creating contour plots, please try to use {@link XYPlot} and
069: * {@link XYBlockRenderer}.
070: */
071: public class PaletteSample extends JComponent implements
072: ListCellRenderer {
073:
074: /** The palette being displayed. */
075: private ColorPalette palette;
076:
077: /** The preferred size of the component; */
078: private Dimension preferredSize;
079:
080: /**
081: * Creates a new sample.
082: *
083: * @param palette the palette.
084: */
085: public PaletteSample(ColorPalette palette) {
086: this .palette = palette;
087: this .preferredSize = new Dimension(80, 18);
088: }
089:
090: /**
091: * Returns a list cell renderer for the stroke, so the sample can be
092: * displayed in a list or combo.
093: *
094: * @param list the list component.
095: * @param value the value.
096: * @param index the index.
097: * @param isSelected a flag that indicates whether or not the item is
098: * selected.
099: * @param cellHasFocus a flag that indicates whether or not the cell has
100: * the focus.
101: *
102: * @return The renderer.
103: */
104: public Component getListCellRendererComponent(JList list,
105: Object value, int index, boolean isSelected,
106: boolean cellHasFocus) {
107: if (value instanceof PaletteSample) {
108: PaletteSample in = (PaletteSample) value;
109: setPalette(in.getPalette());
110: }
111: return this ;
112: }
113:
114: /**
115: * Returns the current palette object being displayed.
116: *
117: * @return The palette.
118: */
119: public ColorPalette getPalette() {
120: return this .palette;
121: }
122:
123: /**
124: * Returns the preferred size of the component.
125: *
126: * @return The preferred size.
127: */
128: public Dimension getPreferredSize() {
129: return this .preferredSize;
130: }
131:
132: /**
133: * Draws the sample.
134: *
135: * @param g the graphics device.
136: */
137: public void paintComponent(Graphics g) {
138:
139: Graphics2D g2 = (Graphics2D) g;
140: g2.setRenderingHint(RenderingHints.KEY_ANTIALIASING,
141: RenderingHints.VALUE_ANTIALIAS_OFF);
142: Dimension size = getSize();
143: Insets insets = getInsets();
144: double ww = size.getWidth() - insets.left - insets.right;
145: double hh = size.getHeight() - insets.top - insets.bottom;
146:
147: g2.setStroke(new BasicStroke(1.0f));
148:
149: double y1 = insets.top;
150: double y2 = y1 + hh;
151: double xx = insets.left;
152: Line2D line = new Line2D.Double();
153: int count = 0;
154: while (xx <= insets.left + ww) {
155: count++;
156: line.setLine(xx, y1, xx, y2);
157: g2.setPaint(this .palette.getColor(count));
158: g2.draw(line);
159: xx += 1;
160: }
161: }
162:
163: /**
164: * Sets the palette object being displayed.
165: *
166: * @param palette the palette.
167: */
168: public void setPalette(ColorPalette palette) {
169: this.palette = palette;
170: this.repaint();
171: }
172:
173: }
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