/*-- $Id: SVG.java,v 1.18 2001/01/25 15:10:13 eschaeffer Exp $ --
============================================================================
The Apache Software License, Version 1.1
============================================================================
Copyright (C) 1999 The Apache Software Foundation. All rights reserved.
Redistribution and use in source and binary forms, with or without modifica-
tion, are permitted provided that the following conditions are met:
1. Redistributions of source code must retain the above copyright notice,
this list of conditions and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright notice,
this list of conditions and the following disclaimer in the documentation
and/or other materials provided with the distribution.
3. The end-user documentation included with the redistribution, if any, must
include the following acknowledgment: "This product includes software
developed by the Apache Software Foundation (http://www.apache.org/)."
Alternately, this acknowledgment may appear in the software itself, if
and wherever such third-party acknowledgments normally appear.
4. The names "FOP" and "Apache Software Foundation" must not be used to
endorse or promote products derived from this software without prior
written permission. For written permission, please contact
apache@apache.org.
5. Products derived from this software may not be called "Apache", nor may
"Apache" appear in their name, without prior written permission of the
Apache Software Foundation.
THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED WARRANTIES,
INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
APACHE SOFTWARE FOUNDATION OR ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLU-
DING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
This software consists of voluntary contributions made by many individuals
on behalf of the Apache Software Foundation and was originally created by
James Tauber <jtauber@jtauber.com>. For more information on the Apache
Software Foundation, please see <http://www.apache.org/>.
*/
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.dom.svg.*;
import org.w3c.dom.svg.*;
import org.w3c.dom.svg.SVGLength;
import org.apache.fop.dom.svg.SVGArea;
/**
* class representing svg:svg pseudo flow object.
*/
public class SVG extends FObj implements GraphicsCreator {
/**
* 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 SVG(parent, propertyList);
}
}
/**
* returns the maker for this object.
*
* @return the maker for SVG objects
*/
public static FObj.Maker maker() {
return new SVG.Maker();
}
FontState fs;
float width;
float height;
/**
* constructs an SVG object (called by Maker).
*
* @param parent the parent formatting object
* @param propertyList the explicit properties of this object
*/
public SVG(FObj parent, PropertyList propertyList) {
super(parent, propertyList);
this.name = "svg:svg";
}
public SVGElement createGraphic() {
SVGSVGElementImpl svgArea = null;
SVGLength w = ((SVGLengthProperty) this.properties.get("width")).
getSVGLength();
SVGLength h = ((SVGLengthProperty) this.properties.get("height")).
getSVGLength();
svgArea = new SVGSVGElementImpl();
SVGAnimatedLengthImpl sal;
if (w == null)
w = new SVGLengthImpl();
sal = new SVGAnimatedLengthImpl(w);
sal.setBaseVal(w);
svgArea.setWidth(sal);
if (h == null)
h = new SVGLengthImpl();
sal = new SVGAnimatedLengthImpl(h);
sal.setBaseVal(h);
svgArea.setHeight(sal);
SVGLength lengthProp =
((SVGLengthProperty) this.properties.get("x")).
getSVGLength();
SVGLength x = lengthProp == null ? new SVGLengthImpl() : lengthProp;
sal = new SVGAnimatedLengthImpl(x);
sal.setBaseVal(x);
svgArea.setX(sal);
lengthProp = ((SVGLengthProperty) this.properties.get("y")).
getSVGLength();
SVGLength y = lengthProp == null ? new SVGLengthImpl() : lengthProp;
sal = new SVGAnimatedLengthImpl(y);
sal.setBaseVal(y);
svgArea.setY(sal);
svgArea.setStyle(
((SVGStyle) this.properties.get("style")).getStyle());
svgArea.setTransform(
((SVGTransform) this.properties.get("transform")).
getTransform());
svgArea.setId(this.properties.get("id").getString());
int numChildren = this.children.size();
for (int i = 0; i < numChildren; i++) {
FONode fo = (FONode) children.elementAt(i);
if (fo instanceof GraphicsCreator) {
SVGElement impl = ((GraphicsCreator) fo).createGraphic();
if (impl != null) {
if (impl instanceof SVGElementImpl)
((SVGElementImpl) impl).setClassName(
new SVGAnimatedStringImpl(
((FObj) fo).getProperty(
"class").getString()));
svgArea.appendChild((org.w3c.dom.Node) impl);
}
// } else if(fo instanceof Defs) {
// svgArea.addDefs(((Defs)fo).createDefs());
}
Status status;
}
return svgArea;
}
/**
* layout this formatting object.
*
* @param area the area to layout the object into
*
* @return the status of the layout
*/
public Status layout(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 == BREAK_AFTER) {
return new Status(Status.OK);
}
if (this.marker == START) {
/* retrieve properties */
String id = this.properties.get("id").getString();
String fontFamily =
this.properties.get("font-family").getString();
String fontStyle =
this.properties.get("font-style").getString();
String fontWeight =
this.properties.get("font-weight").getString();
int fontSize =
this.properties.get("font-size").getLength().mvalue();
// FIX-ME: should get the font-variant property
this.fs = new FontState(area.getFontInfo(), fontFamily,
fontStyle, fontWeight, fontSize, FontVariant.NORMAL);
SVGLength length;
length = ((SVGLengthProperty) this.properties.get("width")).getSVGLength();
if (length == null)
length = new SVGLengthImpl();
this.width = length.getValue();
length = ((SVGLengthProperty) this.properties.get("height")).
getSVGLength();
if (length == null)
length = new SVGLengthImpl();
this.height = length.getValue();
this.marker = 0;
}
/* create an SVG area */
/* if width and height are zero, may want to get the bounds of the content. */
SVGArea svg = new SVGArea(fs, width, height);
SVGDocument doc = new SVGDocumentImpl();
svg.setSVGDocument(doc);
svg.start();
/* add the SVG area to the containing area */
ForeignObjectArea foa = (ForeignObjectArea) area;
foa.setObject(svg);
foa.setIntrinsicWidth(svg.getWidth());
foa.setIntrinsicHeight(svg.getHeight());
doc.appendChild((SVGSVGElement) createGraphic());
/* finish off the SVG area */
svg.end();
/* return status */
return new Status(Status.OK);
}
}