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1: /* ======================================================================== 2: * JCommon : a free general purpose class library for the Java(tm) platform 3: * ======================================================================== 4: * 5: * (C) Copyright 2000-2005, by Object Refinery Limited and Contributors. 6: * 7: * Project Info: http://www.jfree.org/jcommon/index.html 8: * 9: * This library is free software; you can redistribute it and/or modify it 10: * under the terms of the GNU Lesser General Public License as published by 11: * the Free Software Foundation; either version 2.1 of the License, or 12: * (at your option) any later version. 13: * 14: * This library is distributed in the hope that it will be useful, but 15: * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY 16: * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public 17: * License for more details. 18: * 19: * You should have received a copy of the GNU Lesser General Public 20: * License along with this library; if not, write to the Free Software 21: * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, 22: * USA. 23: * 24: * [Java is a trademark or registered trademark of Sun Microsystems, Inc. 25: * in the United States and other countries.] 26: * 27: * ---------------------- 28: * BasicStrokeReadHandler 29: * ---------------------- 30: * (C) Copyright 2003, by Thomas Morgner and Contributors. 31: * 32: * Original Author: Thomas Morgner; 33: * Contributor(s): David Gilbert (for Object Refinery Limited); 34: * 35: * $Id: BasicStrokeReadHandler.java,v 1.2 2005/10/18 13:33:32 mungady Exp $ 36: * 37: * Changes (from 25-Nov-2003) 38: * -------------------------- 39: * 25-Nov-2003 : Added standard header and Javadocs (DG); 40: * 41: */ 42: 43: package org.jfree.xml.parser.coretypes; 44: 45: import java.awt.BasicStroke; 46: import java.util.StringTokenizer; 47: 48: import org.jfree.xml.parser.AbstractXmlReadHandler; 49: import org.xml.sax.Attributes; 50: import org.xml.sax.SAXException; 51: 52: /** 53: * A SAX handler for reading a {@link BasicStroke} object from XML. 54: * <p> 55: * To do: this should have a multiplexer in front like the PaintReadHandler 56: */ 57: public class BasicStrokeReadHandler extends AbstractXmlReadHandler { 58: 59: /** The stroke under construction. */ 60: private BasicStroke stroke; 61: 62: /** 63: * Creates a new handler. 64: */ 65: public BasicStrokeReadHandler() { 66: super(); 67: } 68: 69: /** 70: * Called at the start of parsing a {@link BasicStroke} element, this method reads the 71: * attributes and constructs the stroke. 72: * 73: * @param attrs the attributes. 74: * 75: * @throws SAXException to indicate a parsing error. 76: */ 77: protected void startParsing(final Attributes attrs) throws SAXException { 78: final int endCap = Integer.parseInt(attrs.getValue("endCap")); 79: final int lineJoin = Integer.parseInt(attrs.getValue("lineJoin")); 80: final float lineWidth = Float.parseFloat(attrs.getValue("lineWidth")); 81: final float miterLimit = Float.parseFloat(attrs.getValue("miterLimit")); 82: final String dashArrayAttrib = attrs.getValue("dashArray"); 83: if (dashArrayAttrib != null) { 84: final float[] dashArray = parseDashArray(dashArrayAttrib); 85: final float dashPhase = Float.parseFloat(attrs.getValue("dashPhase")); 86: this.stroke = new BasicStroke( 87: lineWidth, endCap, lineJoin, miterLimit, dashArray, dashPhase 88: ); 89: } 90: else { 91: this.stroke = new BasicStroke(lineWidth, endCap, lineJoin, miterLimit); 92: } 93: } 94: 95: /** 96: * Parses the dash array. 97: * 98: * @param string the dash array string representation. 99: * 100: * @return a dash array. 101: */ 102: private float[] parseDashArray(final String string) { 103: final StringTokenizer tokenizer = new StringTokenizer(string, ","); 104: final float[] retVal = new float[tokenizer.countTokens()]; 105: for (int i = 0; i < retVal.length; i++) { 106: retVal[i] = Float.parseFloat(tokenizer.nextToken()); 107: } 108: return retVal; 109: } 110: 111: /** 112: * Returns the stroke under construction. 113: * 114: * @return the stroke. 115: */ 116: public Object getObject() { 117: return this.stroke; 118: } 119: 120: }