1 | /*
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2 | * SVG Salamander
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3 | * Copyright (c) 2004, Mark McKay
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4 | * All rights reserved.
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5 | *
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6 | * Redistribution and use in source and binary forms, with or
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7 | * without modification, are permitted provided that the following
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8 | * conditions are met:
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9 | *
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10 | * - Redistributions of source code must retain the above
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11 | * copyright notice, this list of conditions and the following
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12 | * disclaimer.
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13 | * - Redistributions in binary form must reproduce the above
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14 | * copyright notice, this list of conditions and the following
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15 | * disclaimer in the documentation and/or other materials
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16 | * provided with the distribution.
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17 | *
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18 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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19 | * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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20 | * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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21 | * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
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22 | * COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
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23 | * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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24 | * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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25 | * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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26 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
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27 | * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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28 | * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
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29 | * OF THE POSSIBILITY OF SUCH DAMAGE.
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30 | *
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31 | * Mark McKay can be contacted at mark@kitfox.com. Salamander and other
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32 | * projects can be found at http://www.kitfox.com
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33 | *
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34 | * Created on February 18, 2004, 11:43 PM
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35 | */
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36 | package com.kitfox.svg;
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37 |
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38 | import com.kitfox.svg.app.beans.SVGIcon;
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39 | import java.awt.Graphics2D;
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40 | import java.awt.image.BufferedImage;
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41 | import java.beans.PropertyChangeListener;
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42 | import java.beans.PropertyChangeSupport;
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43 | import java.io.BufferedInputStream;
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44 | import java.io.ByteArrayInputStream;
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45 | import java.io.ByteArrayOutputStream;
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46 | import java.io.IOException;
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47 | import java.io.InputStream;
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48 | import java.io.ObjectInputStream;
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49 | import java.io.ObjectOutputStream;
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50 | import java.io.Reader;
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51 | import java.io.Serializable;
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52 | import java.lang.ref.SoftReference;
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53 | import java.net.MalformedURLException;
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54 | import java.net.URI;
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55 | import java.net.URISyntaxException;
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56 | import java.net.URL;
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57 | import java.net.URLConnection;
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58 | import java.net.URLStreamHandler;
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59 | import java.util.HashMap;
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60 | import java.util.Iterator;
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61 | import java.util.logging.Level;
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62 | import java.util.logging.Logger;
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63 | import java.util.zip.GZIPInputStream;
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64 | import javax.imageio.ImageIO;
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65 | import org.xml.sax.EntityResolver;
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66 | import org.xml.sax.InputSource;
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67 | import org.xml.sax.SAXException;
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68 | import org.xml.sax.SAXParseException;
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69 | import org.xml.sax.XMLReader;
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70 | import org.xml.sax.helpers.XMLReaderFactory;
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71 |
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72 | /**
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73 | * Many SVG files can be loaded at one time. These files will quite likely need
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74 | * to reference one another. The SVG universe provides a container for all these
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75 | * files and the means for them to relate to each other.
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76 | *
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77 | * @author Mark McKay
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78 | * @author <a href="mailto:mark@kitfox.com">Mark McKay</a>
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79 | */
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80 | public class SVGUniverse implements Serializable
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81 | {
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82 |
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83 | public static final long serialVersionUID = 0;
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84 | transient private PropertyChangeSupport changes = new PropertyChangeSupport(this);
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85 | /**
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86 | * Maps document URIs to their loaded SVG diagrams. Note that URIs for
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87 | * documents loaded from URLs will reflect their URLs and URIs for documents
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88 | * initiated from streams will have the scheme <i>svgSalamander</i>.
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89 | */
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90 | final HashMap loadedDocs = new HashMap();
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91 | final HashMap loadedFonts = new HashMap();
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92 | final HashMap loadedImages = new HashMap();
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93 | public static final String INPUTSTREAM_SCHEME = "svgSalamander";
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94 | /**
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95 | * Current time in this universe. Used for resolving attributes that are
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96 | * influenced by track information. Time is in milliseconds. Time 0
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97 | * coresponds to the time of 0 in each member diagram.
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98 | */
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99 | protected double curTime = 0.0;
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100 | private boolean verbose = false;
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101 | //Cache reader for efficiency
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102 | XMLReader cachedReader;
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103 |
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104 | /**
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105 | * Creates a new instance of SVGUniverse
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106 | */
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107 | public SVGUniverse()
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108 | {
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109 | }
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110 |
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111 | public void addPropertyChangeListener(PropertyChangeListener l)
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112 | {
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113 | changes.addPropertyChangeListener(l);
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114 | }
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115 |
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116 | public void removePropertyChangeListener(PropertyChangeListener l)
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117 | {
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118 | changes.removePropertyChangeListener(l);
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119 | }
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120 |
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121 | /**
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122 | * Release all loaded SVG document from memory
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123 | */
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124 | public void clear()
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125 | {
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126 | loadedDocs.clear();
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127 | loadedFonts.clear();
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128 | loadedImages.clear();
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129 | }
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130 |
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131 | /**
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132 | * Returns the current animation time in milliseconds.
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133 | */
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134 | public double getCurTime()
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135 | {
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136 | return curTime;
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137 | }
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138 |
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139 | public void setCurTime(double curTime)
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140 | {
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141 | double oldTime = this.curTime;
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142 | this.curTime = curTime;
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143 | changes.firePropertyChange("curTime", new Double(oldTime), new Double(curTime));
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144 | }
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145 |
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146 | /**
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147 | * Updates all time influenced style and presentation attributes in all SVG
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148 | * documents in this universe.
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149 | */
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150 | public void updateTime() throws SVGException
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151 | {
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152 | for (Iterator it = loadedDocs.values().iterator(); it.hasNext();)
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153 | {
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154 | SVGDiagram dia = (SVGDiagram) it.next();
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155 | dia.updateTime(curTime);
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156 | }
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157 | }
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158 |
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159 | /**
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160 | * Called by the Font element to let the universe know that a font has been
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161 | * loaded and is available.
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162 | */
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163 | void registerFont(Font font)
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164 | {
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165 | loadedFonts.put(font.getFontFace().getFontFamily(), font);
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166 | }
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167 |
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168 | public Font getDefaultFont()
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169 | {
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170 | for (Iterator it = loadedFonts.values().iterator(); it.hasNext();)
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171 | {
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172 | return (Font) it.next();
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173 | }
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174 | return null;
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175 | }
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176 |
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177 | public Font getFont(String fontName)
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178 | {
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179 | return (Font) loadedFonts.get(fontName);
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180 | }
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181 |
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182 | URL registerImage(URI imageURI)
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183 | {
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184 | String scheme = imageURI.getScheme();
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185 | if (scheme.equals("data"))
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186 | {
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187 | String path = imageURI.getRawSchemeSpecificPart();
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188 | int idx = path.indexOf(';');
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189 | String mime = path.substring(0, idx);
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190 | String content = path.substring(idx + 1);
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191 |
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192 | if (content.startsWith("base64"))
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193 | {
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194 | content = content.substring(6);
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195 | try
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196 | {
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197 | byte[] buf = new sun.misc.BASE64Decoder().decodeBuffer(content);
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198 | ByteArrayInputStream bais = new ByteArrayInputStream(buf);
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199 | BufferedImage img = ImageIO.read(bais);
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200 |
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201 | URL url;
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202 | int urlIdx = 0;
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203 | while (true)
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204 | {
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205 | url = new URL("inlineImage", "localhost", "img" + urlIdx);
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206 | if (!loadedImages.containsKey(url))
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207 | {
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208 | break;
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209 | }
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210 | urlIdx++;
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211 | }
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212 |
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213 | SoftReference ref = new SoftReference(img);
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214 | loadedImages.put(url, ref);
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215 |
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216 | return url;
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217 | } catch (IOException ex)
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218 | {
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219 | Logger.getLogger(SVGConst.SVG_LOGGER).log(Level.WARNING,
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220 | "Could not decode inline image", ex);
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221 | }
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222 | }
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223 | return null;
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224 | } else
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225 | {
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226 | try
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227 | {
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228 | URL url = imageURI.toURL();
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229 | registerImage(url);
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230 | return url;
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231 | } catch (MalformedURLException ex)
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232 | {
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233 | Logger.getLogger(SVGConst.SVG_LOGGER).log(Level.WARNING,
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234 | "Bad url", ex);
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235 | }
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236 | return null;
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237 | }
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238 | }
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239 |
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240 | void registerImage(URL imageURL)
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241 | {
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242 | if (loadedImages.containsKey(imageURL))
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243 | {
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244 | return;
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245 | }
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246 |
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247 | SoftReference ref;
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248 | try
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249 | {
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250 | String fileName = imageURL.getFile();
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251 | if (".svg".equals(fileName.substring(fileName.length() - 4).toLowerCase()))
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252 | {
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253 | SVGIcon icon = new SVGIcon();
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254 | icon.setSvgURI(imageURL.toURI());
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255 |
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256 | BufferedImage img = new BufferedImage(icon.getIconWidth(), icon.getIconHeight(), BufferedImage.TYPE_INT_ARGB);
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257 | Graphics2D g = img.createGraphics();
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258 | icon.paintIcon(null, g, 0, 0);
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259 | g.dispose();
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260 | ref = new SoftReference(img);
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261 | } else
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262 | {
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263 | BufferedImage img = ImageIO.read(imageURL);
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264 | ref = new SoftReference(img);
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265 | }
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266 | loadedImages.put(imageURL, ref);
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267 | } catch (Exception e)
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268 | {
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269 | Logger.getLogger(SVGConst.SVG_LOGGER).log(Level.WARNING,
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270 | "Could not load image: " + imageURL, e);
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271 | }
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272 | }
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273 |
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274 | BufferedImage getImage(URL imageURL)
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275 | {
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276 | SoftReference ref = (SoftReference) loadedImages.get(imageURL);
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277 | if (ref == null)
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278 | {
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279 | return null;
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280 | }
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281 |
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282 | BufferedImage img = (BufferedImage) ref.get();
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283 | //If image was cleared from memory, reload it
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284 | if (img == null)
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285 | {
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286 | try
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287 | {
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288 | img = ImageIO.read(imageURL);
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289 | } catch (Exception e)
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290 | {
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291 | Logger.getLogger(SVGConst.SVG_LOGGER).log(Level.WARNING,
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292 | "Could not load image", e);
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293 | }
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294 | ref = new SoftReference(img);
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295 | loadedImages.put(imageURL, ref);
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296 | }
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297 |
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298 | return img;
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299 | }
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300 |
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301 | /**
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302 | * Returns the element of the document at the given URI. If the document is
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303 | * not already loaded, it will be.
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304 | */
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305 | public SVGElement getElement(URI path)
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306 | {
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307 | return getElement(path, true);
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308 | }
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309 |
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310 | public SVGElement getElement(URL path)
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311 | {
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312 | try
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313 | {
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314 | URI uri = new URI(path.toString());
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315 | return getElement(uri, true);
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316 | } catch (Exception e)
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317 | {
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318 | Logger.getLogger(SVGConst.SVG_LOGGER).log(Level.WARNING,
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319 | "Could not parse url " + path, e);
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320 | }
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321 | return null;
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322 | }
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323 |
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324 | /**
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325 | * Looks up a href within our universe. If the href refers to a document
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326 | * that is not loaded, it will be loaded. The URL #target will then be
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327 | * checked against the SVG diagram's index and the coresponding element
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328 | * returned. If there is no coresponding index, null is returned.
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329 | */
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330 | public SVGElement getElement(URI path, boolean loadIfAbsent)
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331 | {
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332 | try
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333 | {
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334 | //Strip fragment from URI
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335 | URI xmlBase = new URI(path.getScheme(), path.getSchemeSpecificPart(), null);
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336 |
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337 | SVGDiagram dia = (SVGDiagram) loadedDocs.get(xmlBase);
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338 | if (dia == null && loadIfAbsent)
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339 | {
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340 | //System.err.println("SVGUnivserse: " + xmlBase.toString());
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341 | //javax.swing.JOptionPane.showMessageDialog(null, xmlBase.toString());
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342 | URL url = xmlBase.toURL();
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343 |
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344 | loadSVG(url, false);
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345 | dia = (SVGDiagram) loadedDocs.get(xmlBase);
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346 | if (dia == null)
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347 | {
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348 | return null;
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349 | }
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350 | }
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351 |
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352 | String fragment = path.getFragment();
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353 | return fragment == null ? dia.getRoot() : dia.getElement(fragment);
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354 | } catch (Exception e)
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355 | {
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356 | Logger.getLogger(SVGConst.SVG_LOGGER).log(Level.WARNING,
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357 | "Could not parse path " + path, e);
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358 | return null;
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359 | }
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360 | }
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361 |
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362 | public SVGDiagram getDiagram(URI xmlBase)
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363 | {
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364 | return getDiagram(xmlBase, true);
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365 | }
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366 |
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367 | /**
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368 | * Returns the diagram that has been loaded from this root. If diagram is
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369 | * not already loaded, returns null.
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370 | */
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371 | public SVGDiagram getDiagram(URI xmlBase, boolean loadIfAbsent)
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372 | {
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373 | if (xmlBase == null)
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374 | {
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375 | return null;
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376 | }
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377 |
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378 | SVGDiagram dia = (SVGDiagram) loadedDocs.get(xmlBase);
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379 | if (dia != null || !loadIfAbsent)
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380 | {
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381 | return dia;
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382 | }
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383 |
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384 | //Load missing diagram
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385 | try
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386 | {
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387 | URL url;
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388 | if ("jar".equals(xmlBase.getScheme()) && xmlBase.getPath() != null && !xmlBase.getPath().contains("!/"))
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389 | {
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390 | //Workaround for resources stored in jars loaded by Webstart.
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391 | //http://bugs.sun.com/bugdatabase/view_bug.do?bug_id=6753651
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392 | url = SVGUniverse.class.getResource("xmlBase.getPath()");
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393 | }
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394 | else
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395 | {
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396 | url = xmlBase.toURL();
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397 | }
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398 |
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399 |
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400 | loadSVG(url, false);
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401 | dia = (SVGDiagram) loadedDocs.get(xmlBase);
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402 | return dia;
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403 | } catch (Exception e)
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404 | {
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405 | Logger.getLogger(SVGConst.SVG_LOGGER).log(Level.WARNING,
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406 | "Could not parse", e);
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407 | }
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408 |
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409 | return null;
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410 | }
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411 |
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412 | /**
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413 | * Wraps input stream in a BufferedInputStream. If it is detected that this
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414 | * input stream is GZIPped, also wraps in a GZIPInputStream for inflation.
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415 | *
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416 | * @param is Raw input stream
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417 | * @return Uncompressed stream of SVG data
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418 | * @throws java.io.IOException
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419 | */
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420 | private InputStream createDocumentInputStream(InputStream is) throws IOException
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421 | {
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422 | BufferedInputStream bin = new BufferedInputStream(is);
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423 | bin.mark(2);
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424 | int b0 = bin.read();
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425 | int b1 = bin.read();
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426 | bin.reset();
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427 |
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428 | //Check for gzip magic number
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429 | if ((b1 << 8 | b0) == GZIPInputStream.GZIP_MAGIC)
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430 | {
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431 | GZIPInputStream iis = new GZIPInputStream(bin);
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432 | return iis;
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433 | } else
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434 | {
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435 | //Plain text
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436 | return bin;
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437 | }
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438 | }
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439 |
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440 | public URI loadSVG(URL docRoot)
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441 | {
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442 | return loadSVG(docRoot, false);
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443 | }
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444 |
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445 | /**
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446 | * Loads an SVG file and all the files it references from the URL provided.
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447 | * If a referenced file already exists in the SVG universe, it is not
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448 | * reloaded.
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449 | *
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450 | * @param docRoot - URL to the location where this SVG file can be found.
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451 | * @param forceLoad - if true, ignore cached diagram and reload
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452 | * @return - The URI that refers to the loaded document
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453 | */
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454 | public URI loadSVG(URL docRoot, boolean forceLoad)
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455 | {
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456 | try
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457 | {
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458 | URI uri = new URI(docRoot.toString());
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459 | if (loadedDocs.containsKey(uri) && !forceLoad)
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460 | {
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461 | return uri;
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462 | }
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463 |
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464 | InputStream is = docRoot.openStream();
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465 | return loadSVG(uri, new InputSource(createDocumentInputStream(is)));
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466 | } catch (URISyntaxException ex)
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467 | {
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468 | Logger.getLogger(SVGConst.SVG_LOGGER).log(Level.WARNING,
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469 | "Could not parse", ex);
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470 | } catch (IOException e)
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471 | {
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472 | Logger.getLogger(SVGConst.SVG_LOGGER).log(Level.WARNING,
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473 | "Could not parse", e);
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474 | }
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475 |
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476 | return null;
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477 | }
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478 |
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479 | public URI loadSVG(InputStream is, String name) throws IOException
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480 | {
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481 | return loadSVG(is, name, false);
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482 | }
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483 |
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484 | public URI loadSVG(InputStream is, String name, boolean forceLoad) throws IOException
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485 | {
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486 | URI uri = getStreamBuiltURI(name);
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487 | if (uri == null)
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488 | {
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489 | return null;
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490 | }
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491 | if (loadedDocs.containsKey(uri) && !forceLoad)
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492 | {
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493 | return uri;
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494 | }
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---|
495 |
|
---|
496 | return loadSVG(uri, new InputSource(createDocumentInputStream(is)));
|
---|
497 | }
|
---|
498 |
|
---|
499 | public URI loadSVG(Reader reader, String name)
|
---|
500 | {
|
---|
501 | return loadSVG(reader, name, false);
|
---|
502 | }
|
---|
503 |
|
---|
504 | /**
|
---|
505 | * This routine allows you to create SVG documents from data streams that
|
---|
506 | * may not necessarily have a URL to load from. Since every SVG document
|
---|
507 | * must be identified by a unique URL, Salamander provides a method to fake
|
---|
508 | * this for streams by defining it's own protocol - svgSalamander - for SVG
|
---|
509 | * documents without a formal URL.
|
---|
510 | *
|
---|
511 | * @param reader - A stream containing a valid SVG document
|
---|
512 | * @param name - <p>A unique name for this document. It will be used to
|
---|
513 | * construct a unique URI to refer to this document and perform resolution
|
---|
514 | * with relative URIs within this document.</p> <p>For example, a name of
|
---|
515 | * "/myScene" will produce the URI svgSalamander:/myScene.
|
---|
516 | * "/maps/canada/toronto" will produce svgSalamander:/maps/canada/toronto.
|
---|
517 | * If this second document then contained the href "../uk/london", it would
|
---|
518 | * resolve by default to svgSalamander:/maps/uk/london. That is, SVG
|
---|
519 | * Salamander defines the URI scheme svgSalamander for it's own internal use
|
---|
520 | * and uses it for uniquely identfying documents loaded by stream.</p> <p>If
|
---|
521 | * you need to link to documents outside of this scheme, you can either
|
---|
522 | * supply full hrefs (eg, href="url(http://www.kitfox.com/index.html)") or
|
---|
523 | * put the xml:base attribute in a tag to change the defaultbase URIs are
|
---|
524 | * resolved against</p> <p>If a name does not start with the character '/',
|
---|
525 | * it will be automatically prefixed to it.</p>
|
---|
526 | * @param forceLoad - if true, ignore cached diagram and reload
|
---|
527 | *
|
---|
528 | * @return - The URI that refers to the loaded document
|
---|
529 | */
|
---|
530 | public URI loadSVG(Reader reader, String name, boolean forceLoad)
|
---|
531 | {
|
---|
532 | //System.err.println(url.toString());
|
---|
533 | //Synthesize URI for this stream
|
---|
534 | URI uri = getStreamBuiltURI(name);
|
---|
535 | if (uri == null)
|
---|
536 | {
|
---|
537 | return null;
|
---|
538 | }
|
---|
539 | if (loadedDocs.containsKey(uri) && !forceLoad)
|
---|
540 | {
|
---|
541 | return uri;
|
---|
542 | }
|
---|
543 |
|
---|
544 | return loadSVG(uri, new InputSource(reader));
|
---|
545 | }
|
---|
546 |
|
---|
547 | /**
|
---|
548 | * Synthesize a URI for an SVGDiagram constructed from a stream.
|
---|
549 | *
|
---|
550 | * @param name - Name given the document constructed from a stream.
|
---|
551 | */
|
---|
552 | public URI getStreamBuiltURI(String name)
|
---|
553 | {
|
---|
554 | if (name == null || name.length() == 0)
|
---|
555 | {
|
---|
556 | return null;
|
---|
557 | }
|
---|
558 |
|
---|
559 | if (name.charAt(0) != '/')
|
---|
560 | {
|
---|
561 | name = '/' + name;
|
---|
562 | }
|
---|
563 |
|
---|
564 | try
|
---|
565 | {
|
---|
566 | //Dummy URL for SVG documents built from image streams
|
---|
567 | return new URI(INPUTSTREAM_SCHEME, name, null);
|
---|
568 | } catch (Exception e)
|
---|
569 | {
|
---|
570 | Logger.getLogger(SVGConst.SVG_LOGGER).log(Level.WARNING,
|
---|
571 | "Could not parse", e);
|
---|
572 | return null;
|
---|
573 | }
|
---|
574 | }
|
---|
575 |
|
---|
576 | private XMLReader getXMLReaderCached() throws SAXException
|
---|
577 | {
|
---|
578 | if (cachedReader == null)
|
---|
579 | {
|
---|
580 | cachedReader = XMLReaderFactory.createXMLReader();
|
---|
581 | }
|
---|
582 | return cachedReader;
|
---|
583 | }
|
---|
584 |
|
---|
585 | protected URI loadSVG(URI xmlBase, InputSource is)
|
---|
586 | {
|
---|
587 | // Use an instance of ourselves as the SAX event handler
|
---|
588 | SVGLoader handler = new SVGLoader(xmlBase, this, verbose);
|
---|
589 |
|
---|
590 | //Place this docment in the universe before it is completely loaded
|
---|
591 | // so that the load process can refer to references within it's current
|
---|
592 | // document
|
---|
593 | loadedDocs.put(xmlBase, handler.getLoadedDiagram());
|
---|
594 |
|
---|
595 | try
|
---|
596 | {
|
---|
597 | // Parse the input
|
---|
598 | XMLReader reader = getXMLReaderCached();
|
---|
599 | reader.setEntityResolver(
|
---|
600 | new EntityResolver()
|
---|
601 | {
|
---|
602 | public InputSource resolveEntity(String publicId, String systemId)
|
---|
603 | {
|
---|
604 | //Ignore all DTDs
|
---|
605 | return new InputSource(new ByteArrayInputStream(new byte[0]));
|
---|
606 | }
|
---|
607 | });
|
---|
608 | reader.setContentHandler(handler);
|
---|
609 | reader.parse(is);
|
---|
610 |
|
---|
611 | handler.getLoadedDiagram().updateTime(curTime);
|
---|
612 | return xmlBase;
|
---|
613 | } catch (SAXParseException sex)
|
---|
614 | {
|
---|
615 | System.err.println("Error processing " + xmlBase);
|
---|
616 | System.err.println(sex.getMessage());
|
---|
617 |
|
---|
618 | loadedDocs.remove(xmlBase);
|
---|
619 | return null;
|
---|
620 | } catch (Throwable e)
|
---|
621 | {
|
---|
622 | Logger.getLogger(SVGConst.SVG_LOGGER).log(Level.WARNING,
|
---|
623 | "Could not load SVG " + xmlBase, e);
|
---|
624 | }
|
---|
625 |
|
---|
626 | return null;
|
---|
627 | }
|
---|
628 |
|
---|
629 | // public static void main(String argv[])
|
---|
630 | // {
|
---|
631 | // try
|
---|
632 | // {
|
---|
633 | // URL url = new URL("svgSalamander", "localhost", -1, "abc.svg",
|
---|
634 | // new URLStreamHandler()
|
---|
635 | // {
|
---|
636 | // protected URLConnection openConnection(URL u)
|
---|
637 | // {
|
---|
638 | // return null;
|
---|
639 | // }
|
---|
640 | // }
|
---|
641 | // );
|
---|
642 | //// URL url2 = new URL("svgSalamander", "localhost", -1, "abc.svg");
|
---|
643 | //
|
---|
644 | // //Investigate URI resolution
|
---|
645 | // URI uriA, uriB, uriC, uriD, uriE;
|
---|
646 | //
|
---|
647 | // uriA = new URI("svgSalamander", "/names/mySpecialName", null);
|
---|
648 | //// uriA = new URI("http://www.kitfox.com/salamander");
|
---|
649 | //// uriA = new URI("svgSalamander://mySpecialName/grape");
|
---|
650 | // System.err.println(uriA.toString());
|
---|
651 | // System.err.println(uriA.getScheme());
|
---|
652 | //
|
---|
653 | // uriB = uriA.resolve("#begin");
|
---|
654 | // System.err.println(uriB.toString());
|
---|
655 | //
|
---|
656 | // uriC = uriA.resolve("tree#boing");
|
---|
657 | // System.err.println(uriC.toString());
|
---|
658 | //
|
---|
659 | // uriC = uriA.resolve("../tree#boing");
|
---|
660 | // System.err.println(uriC.toString());
|
---|
661 | // }
|
---|
662 | // catch (Exception e)
|
---|
663 | // {
|
---|
664 | // Logger.getLogger(SVGConst.SVG_LOGGER).log(Level.WARNING,
|
---|
665 | // "Could not parse", e);
|
---|
666 | // }
|
---|
667 | // }
|
---|
668 | public boolean isVerbose()
|
---|
669 | {
|
---|
670 | return verbose;
|
---|
671 | }
|
---|
672 |
|
---|
673 | public void setVerbose(boolean verbose)
|
---|
674 | {
|
---|
675 | this.verbose = verbose;
|
---|
676 | }
|
---|
677 |
|
---|
678 | /**
|
---|
679 | * Uses serialization to duplicate this universe.
|
---|
680 | */
|
---|
681 | public SVGUniverse duplicate() throws IOException, ClassNotFoundException
|
---|
682 | {
|
---|
683 | ByteArrayOutputStream bs = new ByteArrayOutputStream();
|
---|
684 | ObjectOutputStream os = new ObjectOutputStream(bs);
|
---|
685 | os.writeObject(this);
|
---|
686 | os.close();
|
---|
687 |
|
---|
688 | ByteArrayInputStream bin = new ByteArrayInputStream(bs.toByteArray());
|
---|
689 | ObjectInputStream is = new ObjectInputStream(bin);
|
---|
690 | SVGUniverse universe = (SVGUniverse) is.readObject();
|
---|
691 | is.close();
|
---|
692 |
|
---|
693 | return universe;
|
---|
694 | }
|
---|
695 | }
|
---|