+++ /dev/null
-/* $Id$
- * 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.fo;
-
-// FOP
-import org.apache.fop.fo.*;
-import org.apache.fop.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.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;
-
-// Java
-import java.util.Hashtable;
-import java.util.Stack;
-import java.io.IOException;
-import java.io.File;
-
-// 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/2000/svg", -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/2000/svg^" + 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/2000/svg";
- }
-
- /* 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);
- String fullName = uri + "^" + localName;
- 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, currentFObj);
- }
- 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() {
- DOMImplementation impl = SVGDOMImplementation.getDOMImplementation();
- String svgNS = SVGDOMImplementation.SVG_NAMESPACE_URI;
- Document doc = impl.createDocument(svgNS, "svg", null);
-
- Element svgRoot = doc.getDocumentElement();
-
- try {
- ((SVGOMDocument)doc).setURLObject(new File(".").toURL());
- } catch (Exception e) {
- }
-
- DefaultSVGContext dc = new DefaultSVGContext() {
- public float getPixelToMM() {
- return 0.264583333333333333333f;
- // 72 dpi
- }
- public float getViewportWidth() {
- return 100;
- }
- public float getViewportHeight() {
- return 100;
- }
- };
- ((SVGOMDocument)doc).setSVGContext(dc);
- ((org.apache.fop.svg.SVGElement)rootFObj).buildTopLevel(doc, svgRoot);
-
- return (SVGDocument)doc;
- }
-}
+++ /dev/null
-/* $Id$
- * 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.apps.*;
-import org.apache.fop.fo.FOTreeBuilder;
-import org.apache.fop.fo.ElementMapping;
-import org.apache.fop.fo.PropertyListMapping;
-import org.apache.fop.layout.AreaTree;
-import org.apache.fop.layout.FontInfo;
-import org.apache.fop.render.Renderer;
-import org.apache.fop.messaging.MessageHandler;
-
-// DOM
-import org.w3c.dom.Document;
-import org.w3c.dom.Node;
-import org.w3c.dom.NamedNodeMap;
-import org.w3c.dom.Attr;
-
-// SAX
-import org.xml.sax.ContentHandler;
-import org.xml.sax.InputSource;
-import org.xml.sax.XMLReader;
-import org.xml.sax.SAXException;
-import org.xml.sax.helpers.AttributesImpl;
-
-import org.w3c.dom.svg.*;
-
-// Java
-import java.io.PrintWriter;
-import java.io.IOException;
-
-/**
- */
-public class SVGDriver {
-
- /** the FO tree builder */
- protected SVGTreeBuilder treeBuilder;
-
- /** the PrintWriter to use to output the results of the renderer */
- protected PrintWriter writer;
-
- /** create a new Driver */
- public SVGDriver() {
- this.treeBuilder = new SVGTreeBuilder();
- }
-
- /**
- * add the given element mapping.
- *
- * an element mapping maps element names to Java classes
- */
- public void addElementMapping(ElementMapping mapping) {
- mapping.addToBuilder(this.treeBuilder);
- }
-
- /**
- * add the element mapping with the given class name
- */
- public void addElementMapping(String mappingClassName) {
- createElementMapping(mappingClassName).addToBuilder(
- this.treeBuilder);
- }
-
- /**
- * protected method used by addElementMapping(String) to
- * instantiate element mapping class
- */
- protected ElementMapping createElementMapping(
- String mappingClassName) {
- MessageHandler.logln("using element mapping " + mappingClassName);
-
- try {
- return (ElementMapping) Class.forName(
- mappingClassName).newInstance();
- } catch (ClassNotFoundException e) {
- MessageHandler.errorln("Could not find " + mappingClassName);
- }
- catch (InstantiationException e) {
- MessageHandler.errorln("Could not instantiate " +
- mappingClassName);
- }
- catch (IllegalAccessException e) {
- MessageHandler.errorln("Could not access " + mappingClassName);
- }
- catch (ClassCastException e) {
- MessageHandler.errorln(mappingClassName + " is not an element mapping");
- }
- return null;
- }
-
- /**
- * add the element mapping with the given class name
- */
- public void addPropertyList(String listClassName) {
- createPropertyList(listClassName).addToBuilder(this.treeBuilder);
- }
-
- /**
- * protected method used by addPropertyList(String) to
- * instantiate list mapping class
- */
- protected PropertyListMapping createPropertyList(
- String listClassName) {
- MessageHandler.logln("using property list mapping " +
- listClassName);
-
- try {
- return (PropertyListMapping) Class.forName(
- listClassName).newInstance();
- } catch (ClassNotFoundException e) {
- MessageHandler.errorln("Could not find " + listClassName);
- }
- catch (InstantiationException e) {
- MessageHandler.errorln("Could not instantiate " +
- listClassName);
- }
- catch (IllegalAccessException e) {
- MessageHandler.errorln("Could not access " + listClassName);
- }
- catch (ClassCastException e) {
- MessageHandler.errorln(listClassName + " is not an property list");
- }
- return null;
- }
-
- /**
- * return the tree builder (a SAX DocumentHandler).
- *
- * used in situations where SAX is used but not via a FOP-invoked
- * SAX parser. A good example is an XSLT engine that fires SAX
- * events but isn't a SAX Parser itself.
- */
- public ContentHandler getContentHandler() {
- return this.treeBuilder;
- }
-
- /**
- * build the formatting object tree using the given SAX Parser and
- * SAX InputSource
- */
- public void buildSVGTree(XMLReader parser,
- InputSource source) throws FOPException {
-
- parser.setContentHandler(this.treeBuilder);
- try {
- parser.parse(source);
- } catch (SAXException e) {
- e.printStackTrace();
- if (e.getException() instanceof FOPException)
- throw (FOPException) e.getException();
- else
- throw new FOPException(e.getMessage());
- }
- catch (IOException e) {
- throw new FOPException(e.getMessage());
- }
- }
-
- /**
- * build the formatting object tree using the given DOM Document
- */
- public void buildSVGTree(Document document) throws FOPException {
-
- /* most of this code is modified from John Cowan's */
-
- Node currentNode;
- AttributesImpl currentAtts;
-
- /* temporary array for making Strings into character arrays */
- char[] array = null;
-
- currentAtts = new AttributesImpl();
-
- /* start at the document element */
- currentNode = document;
-
- try {
- while (currentNode != null) {
- switch (currentNode.getNodeType()) {
- case Node.DOCUMENT_NODE:
- this.treeBuilder.startDocument();
- break;
- case Node.CDATA_SECTION_NODE:
- case Node.TEXT_NODE:
- String data = currentNode.getNodeValue();
- int datalen = data.length();
- if (array == null || array.length < datalen) {
- /* if the array isn't big enough, make a new
- one */
- array = new char[datalen];
- }
- data.getChars(0, datalen, array, 0);
- this.treeBuilder.characters(array, 0, datalen);
- break;
- case Node.PROCESSING_INSTRUCTION_NODE:
- this.treeBuilder.processingInstruction(
- currentNode.getNodeName(),
- currentNode.getNodeValue());
- break;
- case Node.ELEMENT_NODE:
- NamedNodeMap map = currentNode.getAttributes();
- currentAtts.clear();
- for (int i = map.getLength() - 1; i >= 0; i--) {
- Attr att = (Attr) map.item(i);
- currentAtts.addAttribute("", att.getName(),
- "", "CDATA", att.getValue());
- }
- this.treeBuilder.startElement("",
- currentNode.getNodeName(), "", currentAtts);
- break;
- }
-
- Node nextNode = currentNode.getFirstChild();
- if (nextNode != null) {
- currentNode = nextNode;
- continue;
- }
-
- while (currentNode != null) {
- switch (currentNode.getNodeType()) {
- case Node.DOCUMENT_NODE:
- this.treeBuilder.endDocument();
- break;
- case Node.ELEMENT_NODE:
- this.treeBuilder.endElement("",
- currentNode.getNodeName(), "");
- break;
- }
-
- nextNode = currentNode.getNextSibling();
- if (nextNode != null) {
- currentNode = nextNode;
- break;
- }
-
- currentNode = currentNode.getParentNode();
- }
- }
- } catch (SAXException e) {
- throw new FOPException(e.getMessage());
- }
- }
-
- public SVGDocument getSVGDocument() {
- return this.treeBuilder.getSVGDocument();
- }
-
- /**
- * format the formatting object tree into an area tree
- */
- public void format() throws FOPException {
- FontInfo fontInfo = new FontInfo();
- }
-}
projects / xmlgraphics-fop.git / commitdiff