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 * BasicStrokeWriteHandler.java 029 * ---------------------------- 030 * (C)opyright 2003-2005, by Thomas Morgner and Contributors. 031 * 032 * Original Author: Thomas Morgner; 033 * Contributor(s): David Gilbert (for Object Refinery Limited); 034 * 035 * $Id: BasicStrokeWriteHandler.java,v 1.3 2005/10/18 13:35:21 mungady Exp $ 036 * 037 * Changes 038 * ------- 039 * 12-Nov-2003 : Initial version (TM); 040 * 25-Nov-2003 : Updated header (DG); 041 * 042 */ 043 044 package org.jfree.xml.writer.coretypes; 045 046 import java.awt.BasicStroke; 047 import java.io.IOException; 048 049 import org.jfree.xml.writer.AbstractXmlWriteHandler; 050 import org.jfree.xml.writer.AttributeList; 051 import org.jfree.xml.writer.XMLWriter; 052 import org.jfree.xml.writer.XMLWriterException; 053 054 /** 055 * A handler that can write the XML description for a {@link BasicStroke} object. 056 */ 057 public class BasicStrokeWriteHandler extends AbstractXmlWriteHandler { 058 059 /** 060 * Creates a new handler. 061 */ 062 public BasicStrokeWriteHandler() { 063 super(); 064 } 065 066 /** 067 * Performs the writing of a single object. 068 * 069 * @param tagName the tag name. 070 * @param object the object ({@link BasicStroke} expected). 071 * @param writer the writer. 072 * @param mPlexAttribute ?? 073 * @param mPlexValue ?? 074 * 075 * @throws IOException if there is an I/O problem. 076 * @throws XMLWriterException if there is a problem with the writer. 077 */ 078 public void write(final String tagName, final Object object, final XMLWriter writer, 079 final String mPlexAttribute, final String mPlexValue) 080 throws IOException, XMLWriterException { 081 final BasicStroke stroke = (BasicStroke) object; 082 final float[] dashArray = stroke.getDashArray(); 083 final float dashPhase = stroke.getDashPhase(); 084 final int endCap = stroke.getEndCap(); 085 final int lineJoin = stroke.getLineJoin(); 086 final float lineWidth = stroke.getLineWidth(); 087 final float miterLimit = stroke.getMiterLimit(); 088 final AttributeList attribs = new AttributeList(); 089 if (mPlexAttribute != null) { 090 attribs.setAttribute(mPlexAttribute, mPlexValue); 091 } 092 attribs.setAttribute("type", "basic"); 093 attribs.setAttribute("endCap", String.valueOf(endCap)); 094 attribs.setAttribute("lineJoin", String.valueOf(lineJoin)); 095 attribs.setAttribute("lineWidth", String.valueOf(lineWidth)); 096 attribs.setAttribute("miterLimit", String.valueOf(miterLimit)); 097 if (dashArray != null) { 098 attribs.setAttribute("dashArray", toString(dashArray)); 099 attribs.setAttribute("dashPhase", String.valueOf(dashPhase)); 100 } 101 writer.writeTag(tagName, attribs, true); 102 } 103 104 /** 105 * A utility method that converts a dash array (from a {@link BasicStroke} object) to 106 * a {@link String}. 107 * 108 * @param dashArray the dash array. 109 * 110 * @return a {@link String} representing the dash array. 111 */ 112 private String toString(final float[] dashArray) { 113 final StringBuffer buffer = new StringBuffer(); 114 for (int i = 0; i < dashArray.length; i++) { 115 final float f = dashArray[i]; 116 if (i != 0) { 117 buffer.append(','); 118 } 119 buffer.append(f); 120 } 121 return buffer.toString(); 122 } 123 124 }