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/*
* $Id$
* Copyright (C) 2001 The Apache Software Foundation. All rights reserved.
* For details on use and redistribution please refer to the
* LICENSE file included with these sources.
*/
package org.apache.fop.svg;
// FOP
import org.apache.fop.fo.*;
import org.apache.fop.fo.properties.*;
import org.apache.fop.layout.Area;
import org.apache.fop.layout.FontState;
import org.apache.fop.apps.FOPException;
import org.apache.fop.layout.inline.*;
import org.apache.fop.configuration.Configuration;
import org.apache.batik.dom.svg.*;
import org.w3c.dom.*;
import org.w3c.dom.svg.*;
import org.w3c.dom.svg.SVGLength;
import org.w3c.dom.DOMImplementation;
import org.apache.batik.dom.svg.SVGDOMImplementation;
import java.io.File;
import java.net.URL;
import java.util.List;
import java.util.ArrayList;
/**
* class representing svg:svg pseudo flow object.
*/
public class SVGElement extends Svg {
/**
* inner class for making SVG objects.
*/
public static class Maker extends FObj.Maker {
/**
* make an SVG object.
*
* @param parent the parent formatting object
* @param propertyList the explicit properties of this object
*
* @return the SVG object
*/
public FObj make(FObj parent,
PropertyList propertyList) throws FOPException {
return new SVGElement(parent, propertyList);
}
}
/**
* returns the maker for this object.
*
* @return the maker for SVG objects
*/
public static FObj.Maker maker() {
return new SVGElement.Maker();
}
FontState fs;
/**
* constructs an SVG object (called by Maker).
*
* @param parent the parent formatting object
* @param propertyList the explicit properties of this object
*/
public SVGElement(FObj parent, PropertyList propertyList) {
super(parent, propertyList);
}
/**
* layout this formatting object.
*
* @param area the area to layout the object into
*
* @return the status of the layout
*/
public Status layout(final Area area) throws FOPException {
if (!(area instanceof ForeignObjectArea)) {
// this is an error
throw new FOPException("SVG not in fo:instream-foreign-object");
}
if (this.marker == START) {
this.fs = area.getFontState();
this.marker = 0;
}
/* create an SVG area */
/* if width and height are zero, may want to get the bounds of the content. */
DOMImplementation impl = SVGDOMImplementation.getDOMImplementation();
String svgNS = SVGDOMImplementation.SVG_NAMESPACE_URI;
Document doc = impl.createDocument(svgNS, "svg", null);
final Element svgRoot = doc.getDocumentElement();
try {
String baseDir = Configuration.getStringValue("baseDir");
((SVGOMDocument)doc).setURLObject(new URL(baseDir));
} catch (Exception e) {}
DefaultSVGContext dc = new DefaultSVGContext() {
public float getPixelToMM() {
// 72 dpi
return 0.35277777777777777778f;
}
public float getViewportWidth(Element e) throws IllegalStateException {
if(e == svgRoot) {
ForeignObjectArea foa = (ForeignObjectArea)area;
if(!foa.isContentWidthAuto()) {
return foa.getContentWidth();
}
}
return super.getViewportWidth(e);
}
public float getViewportHeight(Element e) throws IllegalStateException {
if(e == svgRoot) {
ForeignObjectArea foa = (ForeignObjectArea)area;
if(!foa.isContentHeightAuto()) {
return foa.getContentHeight();
}
}
return super.getViewportHeight(e);
}
public List getDefaultFontFamilyValue() {
return FONT_FAMILY;
}
};
((SVGOMDocument)doc).setSVGContext(dc);
buildTopLevel(doc, svgRoot);
float width =
((SVGSVGElement)svgRoot).getWidth().getBaseVal().getValue();
float height =
((SVGSVGElement)svgRoot).getHeight().getBaseVal().getValue();
SVGArea svg = new SVGArea(fs, width, height);
svg.setSVGDocument(doc);
svg.start();
/* finish off the SVG area */
svg.end();
/* add the SVG area to the containing area */
ForeignObjectArea foa = (ForeignObjectArea)area;
foa.setObject(svg);
foa.setIntrinsicWidth(svg.getWidth());
foa.setIntrinsicHeight(svg.getHeight());
/* return status */
return new Status(Status.OK);
}
public final static List FONT_FAMILY;
static {
FONT_FAMILY = new ArrayList();
FONT_FAMILY.add("Helvetica");
FONT_FAMILY.add("Times");
FONT_FAMILY.add("Courier");
FONT_FAMILY.add("sans-serif");
FONT_FAMILY.add("serif");
}
}
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