diff options
Diffstat (limited to 'src/main/java/com/kitfox/svg/SVGUniverse.java')
| -rw-r--r-- | src/main/java/com/kitfox/svg/SVGUniverse.java | 341 |
1 files changed, 178 insertions, 163 deletions
diff --git a/src/main/java/com/kitfox/svg/SVGUniverse.java b/src/main/java/com/kitfox/svg/SVGUniverse.java index 398d85a..a8e5f76 100644 --- a/src/main/java/com/kitfox/svg/SVGUniverse.java +++ b/src/main/java/com/kitfox/svg/SVGUniverse.java @@ -33,7 +33,6 @@ *
* Created on February 18, 2004, 11:43 PM
*/
-
package com.kitfox.svg;
import com.kitfox.svg.app.beans.SVGIcon;
@@ -71,59 +70,54 @@ import org.xml.sax.XMLReader; import org.xml.sax.helpers.XMLReaderFactory;
/**
- * Many SVG files can be loaded at one time. These files will quite likely
- * need to reference one another. The SVG universe provides a container for
- * all these files and the means for them to relate to each other.
+ * Many SVG files can be loaded at one time. These files will quite likely need
+ * to reference one another. The SVG universe provides a container for all these
+ * files and the means for them to relate to each other.
*
* @author Mark McKay
* @author <a href="mailto:mark@kitfox.com">Mark McKay</a>
*/
public class SVGUniverse implements Serializable
{
+
public static final long serialVersionUID = 0;
-
transient private PropertyChangeSupport changes = new PropertyChangeSupport(this);
-
/**
- * Maps document URIs to their loaded SVG diagrams. Note that URIs for
+ * Maps document URIs to their loaded SVG diagrams. Note that URIs for
* documents loaded from URLs will reflect their URLs and URIs for documents
* initiated from streams will have the scheme <i>svgSalamander</i>.
*/
final HashMap loadedDocs = new HashMap();
-
final HashMap loadedFonts = new HashMap();
-
final HashMap loadedImages = new HashMap();
-
public static final String INPUTSTREAM_SCHEME = "svgSalamander";
-
/**
- * Current time in this universe. Used for resolving attributes that
- * are influenced by track information. Time is in milliseconds. Time
- * 0 coresponds to the time of 0 in each member diagram.
+ * Current time in this universe. Used for resolving attributes that are
+ * influenced by track information. Time is in milliseconds. Time 0
+ * coresponds to the time of 0 in each member diagram.
*/
protected double curTime = 0.0;
-
private boolean verbose = false;
-
//Cache reader for efficiency
XMLReader cachedReader;
-
- /** Creates a new instance of SVGUniverse */
+
+ /**
+ * Creates a new instance of SVGUniverse
+ */
public SVGUniverse()
{
}
-
+
public void addPropertyChangeListener(PropertyChangeListener l)
{
changes.addPropertyChangeListener(l);
}
-
+
public void removePropertyChangeListener(PropertyChangeListener l)
{
changes.removePropertyChangeListener(l);
}
-
+
/**
* Release all loaded SVG document from memory
*/
@@ -133,22 +127,22 @@ public class SVGUniverse implements Serializable loadedFonts.clear();
loadedImages.clear();
}
-
+
/**
* Returns the current animation time in milliseconds.
*/
public double getCurTime()
- {
- return curTime;
+ {
+ return curTime;
}
-
+
public void setCurTime(double curTime)
{
double oldTime = this.curTime;
- this.curTime = curTime;
+ this.curTime = curTime;
changes.firePropertyChange("curTime", new Double(oldTime), new Double(curTime));
}
-
+
/**
* Updates all time influenced style and presentation attributes in all SVG
* documents in this universe.
@@ -157,11 +151,11 @@ public class SVGUniverse implements Serializable {
for (Iterator it = loadedDocs.values().iterator(); it.hasNext();)
{
- SVGDiagram dia = (SVGDiagram)it.next();
+ SVGDiagram dia = (SVGDiagram) it.next();
dia.updateTime(curTime);
}
}
-
+
/**
* Called by the Font element to let the universe know that a font has been
* loaded and is available.
@@ -170,19 +164,19 @@ public class SVGUniverse implements Serializable {
loadedFonts.put(font.getFontFace().getFontFamily(), font);
}
-
+
public Font getDefaultFont()
{
for (Iterator it = loadedFonts.values().iterator(); it.hasNext();)
{
- return (Font)it.next();
+ return (Font) it.next();
}
return null;
}
-
+
public Font getFont(String fontName)
{
- return (Font)loadedFonts.get(fontName);
+ return (Font) loadedFonts.get(fontName);
}
URL registerImage(URI imageURI)
@@ -198,7 +192,8 @@ public class SVGUniverse implements Serializable if (content.startsWith("base64"))
{
content = content.substring(6);
- try {
+ try
+ {
byte[] buf = new sun.misc.BASE64Decoder().decodeBuffer(content);
ByteArrayInputStream bais = new ByteArrayInputStream(buf);
BufferedImage img = ImageIO.read(bais);
@@ -219,21 +214,23 @@ public class SVGUniverse implements Serializable loadedImages.put(url, ref);
return url;
- } catch (IOException ex) {
- Logger.getLogger(SVGConst.SVG_LOGGER).log(Level.WARNING,
+ } catch (IOException ex)
+ {
+ Logger.getLogger(SVGConst.SVG_LOGGER).log(Level.WARNING,
"Could not decode inline image", ex);
}
}
return null;
- }
- else
+ } else
{
- try {
+ try
+ {
URL url = imageURI.toURL();
registerImage(url);
return url;
- } catch (MalformedURLException ex) {
- Logger.getLogger(SVGConst.SVG_LOGGER).log(Level.WARNING,
+ } catch (MalformedURLException ex)
+ {
+ Logger.getLogger(SVGConst.SVG_LOGGER).log(Level.WARNING,
"Bad url", ex);
}
return null;
@@ -242,8 +239,11 @@ public class SVGUniverse implements Serializable void registerImage(URL imageURL)
{
- if (loadedImages.containsKey(imageURL)) return;
-
+ if (loadedImages.containsKey(imageURL))
+ {
+ return;
+ }
+
SoftReference ref;
try
{
@@ -252,81 +252,80 @@ public class SVGUniverse implements Serializable {
SVGIcon icon = new SVGIcon();
icon.setSvgURI(imageURL.toURI());
-
+
BufferedImage img = new BufferedImage(icon.getIconWidth(), icon.getIconHeight(), BufferedImage.TYPE_INT_ARGB);
Graphics2D g = img.createGraphics();
icon.paintIcon(null, g, 0, 0);
g.dispose();
ref = new SoftReference(img);
- }
- else
+ } else
{
BufferedImage img = ImageIO.read(imageURL);
ref = new SoftReference(img);
}
loadedImages.put(imageURL, ref);
- }
- catch (Exception e)
+ } catch (Exception e)
{
- Logger.getLogger(SVGConst.SVG_LOGGER).log(Level.WARNING,
+ Logger.getLogger(SVGConst.SVG_LOGGER).log(Level.WARNING,
"Could not load image: " + imageURL, e);
}
}
-
+
BufferedImage getImage(URL imageURL)
{
- SoftReference ref = (SoftReference)loadedImages.get(imageURL);
- if (ref == null) return null;
-
- BufferedImage img = (BufferedImage)ref.get();
+ SoftReference ref = (SoftReference) loadedImages.get(imageURL);
+ if (ref == null)
+ {
+ return null;
+ }
+
+ BufferedImage img = (BufferedImage) ref.get();
//If image was cleared from memory, reload it
if (img == null)
{
try
{
img = ImageIO.read(imageURL);
- }
- catch (Exception e)
+ } catch (Exception e)
{
- Logger.getLogger(SVGConst.SVG_LOGGER).log(Level.WARNING,
+ Logger.getLogger(SVGConst.SVG_LOGGER).log(Level.WARNING,
"Could not load image", e);
}
ref = new SoftReference(img);
loadedImages.put(imageURL, ref);
}
-
+
return img;
}
-
+
/**
- * Returns the element of the document at the given URI. If the document
- * is not already loaded, it will be.
+ * Returns the element of the document at the given URI. If the document is
+ * not already loaded, it will be.
*/
public SVGElement getElement(URI path)
{
return getElement(path, true);
}
-
+
public SVGElement getElement(URL path)
{
try
{
URI uri = new URI(path.toString());
return getElement(uri, true);
- }
- catch (Exception e)
+ } catch (Exception e)
{
- Logger.getLogger(SVGConst.SVG_LOGGER).log(Level.WARNING,
+ Logger.getLogger(SVGConst.SVG_LOGGER).log(Level.WARNING,
"Could not parse url " + path, e);
}
return null;
}
-
+
/**
- * Looks up a href within our universe. If the href refers to a document that
- * is not loaded, it will be loaded. The URL #target will then be checked
- * against the SVG diagram's index and the coresponding element returned.
- * If there is no coresponding index, null is returned.
+ * Looks up a href within our universe. If the href refers to a document
+ * that is not loaded, it will be loaded. The URL #target will then be
+ * checked against the SVG diagram's index and the coresponding element
+ * returned. If there is no coresponding index, null is returned.
*/
public SVGElement getElement(URI path, boolean loadIfAbsent)
{
@@ -334,46 +333,54 @@ public class SVGUniverse implements Serializable {
//Strip fragment from URI
URI xmlBase = new URI(path.getScheme(), path.getSchemeSpecificPart(), null);
-
- SVGDiagram dia = (SVGDiagram)loadedDocs.get(xmlBase);
+
+ SVGDiagram dia = (SVGDiagram) loadedDocs.get(xmlBase);
if (dia == null && loadIfAbsent)
{
//System.err.println("SVGUnivserse: " + xmlBase.toString());
//javax.swing.JOptionPane.showMessageDialog(null, xmlBase.toString());
URL url = xmlBase.toURL();
-
+
loadSVG(url, false);
- dia = (SVGDiagram)loadedDocs.get(xmlBase);
- if (dia == null) return null;
+ dia = (SVGDiagram) loadedDocs.get(xmlBase);
+ if (dia == null)
+ {
+ return null;
+ }
}
-
+
String fragment = path.getFragment();
return fragment == null ? dia.getRoot() : dia.getElement(fragment);
- }
- catch (Exception e)
+ } catch (Exception e)
{
- Logger.getLogger(SVGConst.SVG_LOGGER).log(Level.WARNING,
+ Logger.getLogger(SVGConst.SVG_LOGGER).log(Level.WARNING,
"Could not parse path " + path, e);
return null;
}
}
-
+
public SVGDiagram getDiagram(URI xmlBase)
{
return getDiagram(xmlBase, true);
}
-
+
/**
- * Returns the diagram that has been loaded from this root. If diagram is
+ * Returns the diagram that has been loaded from this root. If diagram is
* not already loaded, returns null.
*/
public SVGDiagram getDiagram(URI xmlBase, boolean loadIfAbsent)
{
- if (xmlBase == null) return null;
+ if (xmlBase == null)
+ {
+ return null;
+ }
+
+ SVGDiagram dia = (SVGDiagram) loadedDocs.get(xmlBase);
+ if (dia != null || !loadIfAbsent)
+ {
+ return dia;
+ }
- SVGDiagram dia = (SVGDiagram)loadedDocs.get(xmlBase);
- if (dia != null || !loadIfAbsent) return dia;
-
//Load missing diagram
try
{
@@ -389,24 +396,23 @@ public class SVGUniverse implements Serializable url = xmlBase.toURL();
}
-
+
loadSVG(url, false);
- dia = (SVGDiagram)loadedDocs.get(xmlBase);
+ dia = (SVGDiagram) loadedDocs.get(xmlBase);
return dia;
- }
- catch (Exception e)
+ } catch (Exception e)
{
- Logger.getLogger(SVGConst.SVG_LOGGER).log(Level.WARNING,
+ Logger.getLogger(SVGConst.SVG_LOGGER).log(Level.WARNING,
"Could not parse", e);
}
-
+
return null;
}
-
+
/**
- * Wraps input stream in a BufferedInputStream. If it is detected that this
+ * Wraps input stream in a BufferedInputStream. If it is detected that this
* input stream is GZIPped, also wraps in a GZIPInputStream for inflation.
- *
+ *
* @param is Raw input stream
* @return Uncompressed stream of SVG data
* @throws java.io.IOException
@@ -424,23 +430,23 @@ public class SVGUniverse implements Serializable {
GZIPInputStream iis = new GZIPInputStream(bin);
return iis;
- }
- else
+ } else
{
//Plain text
return bin;
}
}
-
+
public URI loadSVG(URL docRoot)
{
return loadSVG(docRoot, false);
}
-
+
/**
* Loads an SVG file and all the files it references from the URL provided.
* If a referenced file already exists in the SVG universe, it is not
* reloaded.
+ *
* @param docRoot - URL to the location where this SVG file can be found.
* @param forceLoad - if true, ignore cached diagram and reload
* @return - The URI that refers to the loaded document
@@ -454,68 +460,69 @@ public class SVGUniverse implements Serializable {
return uri;
}
-
+
InputStream is = docRoot.openStream();
return loadSVG(uri, new InputSource(createDocumentInputStream(is)));
- }
- catch (URISyntaxException ex)
+ } catch (URISyntaxException ex)
{
- Logger.getLogger(SVGConst.SVG_LOGGER).log(Level.WARNING,
+ Logger.getLogger(SVGConst.SVG_LOGGER).log(Level.WARNING,
"Could not parse", ex);
- }
- catch (IOException e)
+ } catch (IOException e)
{
- Logger.getLogger(SVGConst.SVG_LOGGER).log(Level.WARNING,
+ Logger.getLogger(SVGConst.SVG_LOGGER).log(Level.WARNING,
"Could not parse", e);
}
-
+
return null;
}
-
-
+
public URI loadSVG(InputStream is, String name) throws IOException
{
return loadSVG(is, name, false);
}
-
+
public URI loadSVG(InputStream is, String name, boolean forceLoad) throws IOException
{
URI uri = getStreamBuiltURI(name);
- if (uri == null) return null;
- if (loadedDocs.containsKey(uri) && !forceLoad) return uri;
-
+ if (uri == null)
+ {
+ return null;
+ }
+ if (loadedDocs.containsKey(uri) && !forceLoad)
+ {
+ return uri;
+ }
+
return loadSVG(uri, new InputSource(createDocumentInputStream(is)));
}
-
+
public URI loadSVG(Reader reader, String name)
{
return loadSVG(reader, name, false);
}
-
+
/**
* This routine allows you to create SVG documents from data streams that
- * may not necessarily have a URL to load from. Since every SVG document
- * must be identified by a unique URL, Salamander provides a method to
- * fake this for streams by defining it's own protocol - svgSalamander -
- * for SVG documents without a formal URL.
+ * may not necessarily have a URL to load from. Since every SVG document
+ * must be identified by a unique URL, Salamander provides a method to fake
+ * this for streams by defining it's own protocol - svgSalamander - for SVG
+ * documents without a formal URL.
*
* @param reader - A stream containing a valid SVG document
- * @param name - <p>A unique name for this document. It will be used to
+ * @param name - <p>A unique name for this document. It will be used to
* construct a unique URI to refer to this document and perform resolution
- * with relative URIs within this document.</p>
- * <p>For example, a name of "/myScene" will produce the URI
- * svgSalamander:/myScene. "/maps/canada/toronto" will produce
- * svgSalamander:/maps/canada/toronto. If this second document then
- * contained the href "../uk/london", it would resolve by default to
- * svgSalamander:/maps/uk/london. That is, SVG Salamander defines the
- * URI scheme svgSalamander for it's own internal use and uses it
- * for uniquely identfying documents loaded by stream.</p>
- * <p>If you need to link to documents outside of this scheme, you can
- * either supply full hrefs (eg, href="url(http://www.kitfox.com/index.html)")
- * or put the xml:base attribute in a tag to change the defaultbase
- * URIs are resolved against</p>
- * <p>If a name does not start with the character '/', it will be automatically
- * prefixed to it.</p>
+ * with relative URIs within this document.</p> <p>For example, a name of
+ * "/myScene" will produce the URI svgSalamander:/myScene.
+ * "/maps/canada/toronto" will produce svgSalamander:/maps/canada/toronto.
+ * If this second document then contained the href "../uk/london", it would
+ * resolve by default to svgSalamander:/maps/uk/london. That is, SVG
+ * Salamander defines the URI scheme svgSalamander for it's own internal use
+ * and uses it for uniquely identfying documents loaded by stream.</p> <p>If
+ * you need to link to documents outside of this scheme, you can either
+ * supply full hrefs (eg, href="url(http://www.kitfox.com/index.html)") or
+ * put the xml:base attribute in a tag to change the defaultbase URIs are
+ * resolved against</p> <p>If a name does not start with the character '/',
+ * it will be automatically prefixed to it.</p>
* @param forceLoad - if true, ignore cached diagram and reload
*
* @return - The URI that refers to the loaded document
@@ -525,35 +532,47 @@ public class SVGUniverse implements Serializable //System.err.println(url.toString());
//Synthesize URI for this stream
URI uri = getStreamBuiltURI(name);
- if (uri == null) return null;
- if (loadedDocs.containsKey(uri) && !forceLoad) return uri;
-
+ if (uri == null)
+ {
+ return null;
+ }
+ if (loadedDocs.containsKey(uri) && !forceLoad)
+ {
+ return uri;
+ }
+
return loadSVG(uri, new InputSource(reader));
}
-
+
/**
* Synthesize a URI for an SVGDiagram constructed from a stream.
+ *
* @param name - Name given the document constructed from a stream.
*/
public URI getStreamBuiltURI(String name)
{
- if (name == null || name.length() == 0) return null;
-
- if (name.charAt(0) != '/') name = '/' + name;
-
+ if (name == null || name.length() == 0)
+ {
+ return null;
+ }
+
+ if (name.charAt(0) != '/')
+ {
+ name = '/' + name;
+ }
+
try
{
//Dummy URL for SVG documents built from image streams
return new URI(INPUTSTREAM_SCHEME, name, null);
- }
- catch (Exception e)
+ } catch (Exception e)
{
- Logger.getLogger(SVGConst.SVG_LOGGER).log(Level.WARNING,
+ Logger.getLogger(SVGConst.SVG_LOGGER).log(Level.WARNING,
"Could not parse", e);
return null;
}
}
-
+
private XMLReader getXMLReaderCached() throws SAXException
{
if (cachedReader == null)
@@ -562,17 +581,17 @@ public class SVGUniverse implements Serializable }
return cachedReader;
}
-
+
protected URI loadSVG(URI xmlBase, InputSource is)
{
// Use an instance of ourselves as the SAX event handler
SVGLoader handler = new SVGLoader(xmlBase, this, verbose);
-
+
//Place this docment in the universe before it is completely loaded
// so that the load process can refer to references within it's current
// document
loadedDocs.put(xmlBase, handler.getLoadedDiagram());
-
+
try
{
// Parse the input
@@ -585,31 +604,28 @@ public class SVGUniverse implements Serializable //Ignore all DTDs
return new InputSource(new ByteArrayInputStream(new byte[0]));
}
- }
- );
+ });
reader.setContentHandler(handler);
reader.parse(is);
-
+
handler.getLoadedDiagram().updateTime(curTime);
return xmlBase;
- }
- catch (SAXParseException sex)
+ } catch (SAXParseException sex)
{
System.err.println("Error processing " + xmlBase);
System.err.println(sex.getMessage());
-
+
loadedDocs.remove(xmlBase);
return null;
- }
- catch (Throwable e)
+ } catch (Throwable e)
{
- Logger.getLogger(SVGConst.SVG_LOGGER).log(Level.WARNING,
+ Logger.getLogger(SVGConst.SVG_LOGGER).log(Level.WARNING,
"Could not load SVG " + xmlBase, e);
}
-
+
return null;
}
-
+
// public static void main(String argv[])
// {
// try
@@ -649,7 +665,6 @@ public class SVGUniverse implements Serializable // "Could not parse", e);
// }
// }
-
public boolean isVerbose()
{
return verbose;
@@ -659,7 +674,7 @@ public class SVGUniverse implements Serializable {
this.verbose = verbose;
}
-
+
/**
* Uses serialization to duplicate this universe.
*/
@@ -672,7 +687,7 @@ public class SVGUniverse implements Serializable ByteArrayInputStream bin = new ByteArrayInputStream(bs.toByteArray());
ObjectInputStream is = new ObjectInputStream(bin);
- SVGUniverse universe = (SVGUniverse)is.readObject();
+ SVGUniverse universe = (SVGUniverse) is.readObject();
is.close();
return universe;
|