Michael Bayne
2a4385ad33
portals will by dynamically created, combined display/runtime/editable scenes into one, enhanced support for modifying scenes and distributing updates to the clients, various other small stuff that should not be sweated. git-svn-id: svn+ssh://src.earth.threerings.net/narya/trunk@2274 542714f4-19e9-0310-aa3c-eee0fc999fb1
106 lines
3.3 KiB
Java
106 lines
3.3 KiB
Java
//
|
|
// $Id: SceneWriter.java,v 1.4 2003/02/12 07:23:32 mdb Exp $
|
|
|
|
package com.threerings.whirled.tools.xml;
|
|
|
|
import java.io.File;
|
|
import java.io.FileWriter;
|
|
import java.io.IOException;
|
|
import java.util.HashMap;
|
|
import java.util.Iterator;
|
|
|
|
import org.xml.sax.SAXException;
|
|
import org.xml.sax.helpers.AttributesImpl;
|
|
|
|
import com.megginson.sax.DataWriter;
|
|
import com.samskivert.util.StringUtil;
|
|
import com.threerings.tools.xml.NestableWriter;
|
|
|
|
import com.threerings.whirled.Log;
|
|
import com.threerings.whirled.data.AuxModel;
|
|
import com.threerings.whirled.data.SceneModel;
|
|
|
|
/**
|
|
* Generates an XML representation of an {@link SceneModel}.
|
|
*/
|
|
public class SceneWriter
|
|
{
|
|
/** The outer element used to enclose our scene definition. */
|
|
public static final String OUTER_ELEMENT = "scene";
|
|
|
|
/**
|
|
* Registers a writer for writing auxiliary scene models of the
|
|
* supplied class.
|
|
*/
|
|
public void registerAuxWriter (Class aclass, NestableWriter writer)
|
|
{
|
|
_auxers.put(aclass, writer);
|
|
}
|
|
|
|
/**
|
|
* Writes the supplied scene out to the specified file.
|
|
*/
|
|
public void writeScene (File out, SceneModel model)
|
|
throws IOException, SAXException
|
|
{
|
|
FileWriter fout = new FileWriter(out);
|
|
DataWriter dout = new DataWriter(fout);
|
|
dout.setIndentStep(2);
|
|
dout.startDocument();
|
|
writeSceneModel(model, dout);
|
|
dout.endDocument();
|
|
fout.close();
|
|
}
|
|
|
|
/**
|
|
* Writes the data for the supplied {@link SceneModel} to the XML data
|
|
* writer supplied. The writer should already be configured with the
|
|
* appropriate indentation level so that this writer can simply output
|
|
* its elements and allow the calling code to determine where in the
|
|
* greater scene description file the scene data should live.
|
|
*/
|
|
public void writeSceneModel (SceneModel model, DataWriter writer)
|
|
throws SAXException
|
|
{
|
|
AttributesImpl attrs = new AttributesImpl();
|
|
addSceneAttributes(model, attrs);
|
|
writer.startElement("", OUTER_ELEMENT, "", attrs);
|
|
writeSceneData(model, writer);
|
|
writer.endElement(OUTER_ELEMENT);
|
|
}
|
|
|
|
/**
|
|
* Adds attributes to the top-level element before it gets written.
|
|
*/
|
|
protected void addSceneAttributes (
|
|
SceneModel model, AttributesImpl attrs)
|
|
{
|
|
attrs.addAttribute("", "name", "", "", model.name);
|
|
attrs.addAttribute("", "version", "", "",
|
|
Integer.toString(model.version));
|
|
}
|
|
|
|
/**
|
|
* Writes just the scene data which is handy for derived classes which
|
|
* may wish to add their own scene data to the scene output.
|
|
*/
|
|
protected void writeSceneData (SceneModel model, DataWriter writer)
|
|
throws SAXException
|
|
{
|
|
// write out our auxiliary scene models
|
|
for (int ii = 0; ii < model.auxModels.length; ii++) {
|
|
AuxModel amodel = model.auxModels[ii];
|
|
NestableWriter awriter = (NestableWriter)
|
|
_auxers.get(amodel.getClass());
|
|
if (awriter != null) {
|
|
awriter.write(amodel, writer);
|
|
} else {
|
|
Log.warning("No writer registered for auxiliary scene model " +
|
|
"[mclass=" + amodel.getClass() + "].");
|
|
}
|
|
}
|
|
}
|
|
|
|
protected HashMap _auxers = new HashMap();
|
|
}
|