plantuml/src/jcckit/plot/SimpleCurveFactory.java

81 lines
3.2 KiB
Java

/*
* Copyright 2003-2004, Franz-Josef Elmer, All rights reserved
*
* This library is free software; you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation; either version 2.1 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details
* (http://www.gnu.org/copyleft/lesser.html).
*
* You should have received a copy of the GNU Lesser General Public License
* along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
package jcckit.plot;
import java.util.Properties;
import java.util.StringTokenizer;
import jcckit.graphic.ClippingShape;
import jcckit.util.ConfigParameters;
import jcckit.util.PropertiesBasedConfigData;
/**
* Factory for {@link SimpleCurve SimpleCurves}.
*
* @author Franz-Josef Elmer
*/
public class SimpleCurveFactory implements CurveFactory {
/** Configuration parameter key. */
public static final String DEFINITIONS_KEY = "definitions";
private ConfigParameters[] _configs = new ConfigParameters[]
{new ConfigParameters(new PropertiesBasedConfigData(new Properties()))};
/**
* Creates an instance from the specified configuration parameter.
* <table border=1 cellpadding=5>
* <tr><th>Key &amp; Default Value</th><th>Type</th><th>Mandatory</th>
* <th>Description</th></tr>
* <tr><td><tt>definitions = </tt><i>one empty <tt>ConfigParameters<tt>
* instance</i></td>
* <td><tt>String[]</tt></td><td>no</td>
* <td>Keys of subtrees defining {@link ConfigParameters}
* used by the {@link SimpleCurve#SimpleCurve constructor} of
* {@link SimpleCurve}.</td></tr>
* </table>
*/
public SimpleCurveFactory(ConfigParameters config) {
String value = config.get(DEFINITIONS_KEY, null);
if (value != null) {
StringTokenizer tokenizer = new StringTokenizer(value);
_configs = new ConfigParameters[tokenizer.countTokens()];
for (int i = 0; i < _configs.length; i++) {
_configs[i] = config.getNode(tokenizer.nextToken());
}
}
}
/**
* Creates an instance of {@link SimpleCurve}.
* @param curveIndex Index of the curve. Will be used to select the
* {@link ConfigParameters} object and the line attributes.
* In addition it will be used to calculate the y-coordinate
* of the legend symbol.
* @param numberOfCurves Number of curves. Will be needed to calculate
* the y-coordinate of the legend symbol.
* @param clippingShape The clipping shape.
* @param legend The legend. Will be needed to create the legend symbol.
*/
public Curve create(int curveIndex, int numberOfCurves,
ClippingShape clippingShape, Legend legend) {
return new SimpleCurve(_configs[curveIndex % _configs.length], curveIndex,
numberOfCurves, clippingShape, legend);
}
}