--- /dev/null
+/*-- $Id$ --
+
+ ============================================================================
+ 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.fo;
+
+// FOP
+import org.apache.fop.fo.*;
+import org.apache.fop.dom.svg.*;
+import org.apache.fop.layout.AreaTree;
+import org.apache.fop.messaging.MessageHandler;
+import org.apache.fop.apps.FOPException;
+import org.apache.fop.fo.pagination.Root;
+
+// SAX
+import org.xml.sax.helpers.DefaultHandler;
+import org.xml.sax.SAXException;
+import org.xml.sax.InputSource;
+import org.xml.sax.Attributes;
+
+import org.w3c.dom.svg.*;
+
+// Java
+import java.util.Hashtable;
+import java.util.Stack;
+import java.io.IOException;
+
+// NOTE: This class is here since a number of FObj methods that
+// are called are protected. This should probably be fixed.
+/**
+ * SAX Handler that builds the formatting object tree.
+ */
+public class SVGTreeBuilder extends DefaultHandler implements TreeBuilder {
+
+ /**
+ * table mapping element names to the makers of objects
+ * representing formatting objects
+ */
+ protected Hashtable fobjTable = new Hashtable();
+
+ /**
+ * class that builds a property list for each formatting object
+ */
+ protected Hashtable propertylistTable = new Hashtable();
+
+ /**
+ * current formatting object being handled
+ */
+ protected FObj currentFObj = null;
+
+ /**
+ * the root of the formatting object tree
+ */
+ protected FObj rootFObj = null;
+
+ /**
+ * set of names of formatting objects encountered but unknown
+ */
+ protected Hashtable unknownFOs = new Hashtable();
+
+ // namespace implementation ideas pinched from John Cowan
+ protected static class NSMap {
+ String prefix;
+ String uri;
+ int level;
+
+ NSMap(String prefix, String uri, int level) {
+ this.prefix = prefix;
+ this.uri = uri;
+ this.level = level;
+ }
+ }
+
+ protected int level = 0;
+ protected Stack namespaceStack = new Stack();
+
+ {
+ namespaceStack.push(new NSMap("xml",
+ "http://www.w3.org/XML/1998/namespace",
+ -1));
+ namespaceStack.push(new NSMap("", "http://www.w3.org/TR/2000/CR-SVG-20000802/DTD/svg-20000802.dtd", -1));
+ }
+
+ protected String findURI(String prefix) {
+ for (int i = namespaceStack.size() - 1; i >= 0; i--) {
+ NSMap nsMap = (NSMap) (namespaceStack.elementAt(i));
+ if (prefix.equals(nsMap.prefix)) return nsMap.uri;
+ }
+ return null;
+ }
+
+ protected String mapName(String name)
+ throws SAXException {
+ int colon = name.indexOf(':');
+ String prefix = "";
+ String localPart = name;
+ if (colon != -1) {
+ prefix = name.substring(0, colon);
+ localPart = name.substring(colon + 1);
+ }
+ String uri = findURI(prefix);
+ if (uri == null) {
+ if (prefix.equals("")) {
+ return "http://www.w3.org/TR/2000/CR-SVG-20000802/DTD/svg-20000802.dtd^" + name;
+ } else {
+ throw new SAXException(new FOPException("Unknown namespace prefix " + prefix));
+ }
+ }
+ return uri + "^" + localPart;
+ }
+
+ /**
+ * add a mapping from element name to maker.
+ *
+ * @param namespaceURI namespace URI of formatting object element
+ * @param localName local name of formatting object element
+ * @param maker Maker for class representing formatting object
+ */
+ public void addMapping(String namespaceURI, String localName,
+ FObj.Maker maker) {
+ this.fobjTable.put(namespaceURI + "^" + localName, maker);
+ }
+
+ /**
+ * add a mapping from element name to maker.
+ *
+ * @param namespaceURI namespace URI of formatting object element
+ * @param localName local name of formatting object element
+ * @param maker Maker for class representing formatting object
+ */
+ public void addPropertyList(String namespaceURI, Hashtable list) {
+ PropertyListBuilder plb;
+ plb = (PropertyListBuilder)this.propertylistTable.get(namespaceURI);
+ if(plb == null) {
+ plb = new PropertyListBuilder();
+ plb.addList(list);
+ this.propertylistTable.put(namespaceURI, plb);
+ } else {
+ plb.addList(list);
+ }
+ }
+
+ /**
+ * add a mapping from element name to maker.
+ *
+ * @param namespaceURI namespace URI of formatting object element
+ * @param localName local name of formatting object element
+ * @param maker Maker for class representing formatting object
+ */
+ public void addElementPropertyList(String namespaceURI, String localName, Hashtable list) {
+ PropertyListBuilder plb;
+ plb = (PropertyListBuilder)this.propertylistTable.get(namespaceURI);
+ if(plb == null) {
+ plb = new PropertyListBuilder();
+ plb.addElementList(localName, list);
+ this.propertylistTable.put(namespaceURI, plb);
+ } else {
+ plb.addElementList(localName, list);
+ }
+ }
+
+ /** SAX Handler for characters */
+ public void characters(char data[], int start, int length) {
+ currentFObj.addCharacters(data, start, start + length);
+ }
+
+ /** SAX Handler for the end of an element */
+ public void endElement(
+ String uri, String localName, String rawName) {
+ currentFObj.end();
+ currentFObj = (FObj) currentFObj.getParent();
+ level--;
+ while (((NSMap) namespaceStack.peek()).level > level) {
+ namespaceStack.pop();
+ }
+ }
+
+ /** SAX Handler for the start of the document */
+ public void startDocument() {
+ MessageHandler.logln("building svg tree");
+ }
+
+ /** SAX Handler for the start of an element */
+ public void startElement(String uri,
+ String localName, String rawName, Attributes attlist)
+ throws SAXException {
+ /* the formatting object started */
+ FObj fobj;
+ if(uri.equals("")) {
+ uri = "http://www.w3.org/TR/2000/CR-SVG-20000802/DTD/svg-20000802.dtd";
+ }
+
+ /* the maker for the formatting object started */
+ FObj.Maker fobjMaker;
+
+ level++;
+ int length = attlist.getLength();
+ for (int i = 0; i < length; i++) {
+ String att = attlist.getQName(i);
+ if (att.equals("xmlns")) {
+ namespaceStack.push( new NSMap("",
+ attlist.getValue(i),
+ level));
+ } else if (att.startsWith("xmlns:")) {
+ String value = attlist.getValue(i);
+ namespaceStack.push(new NSMap(att.substring(6), value,
+ level));
+ }
+ }
+
+ String fullName = mapName(rawName);
+
+ fobjMaker = (FObj.Maker) fobjTable.get(fullName);
+ PropertyListBuilder currentListBuilder = (PropertyListBuilder)this.propertylistTable.get(uri);
+
+ if (fobjMaker == null) {
+ if (!this.unknownFOs.containsKey(fullName)) {
+ this.unknownFOs.put(fullName, "");
+ MessageHandler.errorln("WARNING: Unknown formatting object "
+ + fullName);
+ }
+ fobjMaker = new FObjMixed.Maker(); // fall back
+ }
+
+ try {
+ PropertyList list = null;
+ if(currentListBuilder != null) {
+ list = currentListBuilder.makeList(fullName, attlist,
+ (currentFObj == null) ? null : currentFObj.properties);
+ }
+ fobj = fobjMaker.make(currentFObj, list);
+ } catch (FOPException e) {
+ throw new SAXException(e);
+ }
+
+ if (rootFObj == null) {
+ rootFObj = fobj;
+ if (!fobj.getName().equals("svg:svg")) {
+ throw new SAXException(new FOPException("Root element must"
+ + " be svg, not "
+ + fobj.getName()));
+ }
+ } else {
+ currentFObj.addChild(fobj);
+ }
+
+ currentFObj = fobj;
+ }
+
+ /**
+ */
+ public SVGDocument getSVGDocument()
+ {
+ SVGDocumentImpl doc = new SVGDocumentImpl();
+ SVGSVGElement svg = (SVGSVGElement)((org.apache.fop.svg.SVG)rootFObj).createGraphic();
+ doc.appendChild(svg);
+ return doc;
+ }
+}
--- /dev/null
+/*-- $Id$ --
+
+ ============================================================================
+ 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.fo;
+
+// FOP
+import org.apache.fop.layout.AreaTree;
+import org.apache.fop.messaging.MessageHandler;
+import org.apache.fop.apps.FOPException;
+import org.apache.fop.fo.pagination.Root;
+
+// SAX
+import org.xml.sax.helpers.DefaultHandler;
+import org.xml.sax.SAXException;
+import org.xml.sax.InputSource;
+import org.xml.sax.Attributes;
+
+// Java
+import java.util.Hashtable;
+import java.util.Stack;
+import java.io.IOException;
+
+/**
+ */
+public interface TreeBuilder {
+
+
+ /**
+ * add a mapping from element name to maker.
+ *
+ * @param namespaceURI namespace URI of formatting object element
+ * @param localName local name of formatting object element
+ * @param maker Maker for class representing formatting object
+ */
+ public void addMapping(String namespaceURI, String localName, FObj.Maker maker);
+
+ /**
+ * add a mapping from element name to maker.
+ *
+ * @param namespaceURI namespace URI of formatting object element
+ * @param localName local name of formatting object element
+ * @param maker Maker for class representing formatting object
+ */
+ public void addPropertyList(String namespaceURI, Hashtable list);
+
+ /**
+ * add a mapping from element name to maker.
+ *
+ * @param namespaceURI namespace URI of formatting object element
+ * @param localName local name of formatting object element
+ * @param maker Maker for class representing formatting object
+ */
+ public void addElementPropertyList(String namespaceURI, String localName, Hashtable list);
+
+}
projects / xmlgraphics-fop.git / commitdiff