package org.apache.fop.area;
import java.awt.Color;
import java.awt.Rectangle;
import java.awt.geom.Rectangle2D;
import java.io.FileNotFoundException;
import java.io.IOException;
import java.nio.CharBuffer;
import java.util.List;
import java.util.Map;
import java.util.Set;
import java.util.Stack;
import javax.xml.transform.Source;
import javax.xml.transform.Transformer;
import javax.xml.transform.TransformerConfigurationException;
import javax.xml.transform.TransformerException;
import javax.xml.transform.dom.DOMResult;
import javax.xml.transform.sax.SAXResult;
import javax.xml.transform.sax.SAXTransformerFactory;
import javax.xml.transform.sax.TransformerHandler;
import org.w3c.dom.DOMImplementation;
import org.w3c.dom.Document;
import org.xml.sax.Attributes;
import org.xml.sax.ContentHandler;
import org.xml.sax.Locator;
import org.xml.sax.SAXException;
import org.xml.sax.helpers.AttributesImpl;
import org.xml.sax.helpers.DefaultHandler;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.apache.xmlgraphics.image.loader.ImageException;
import org.apache.xmlgraphics.image.loader.ImageInfo;
import org.apache.xmlgraphics.image.loader.ImageManager;
import org.apache.xmlgraphics.image.loader.ImageSessionContext;
import org.apache.xmlgraphics.util.QName;
import org.apache.fop.ResourceEventProducer;
import org.apache.fop.apps.FOUserAgent;
import org.apache.fop.area.Trait.Background;
import org.apache.fop.area.Trait.InternalLink;
import org.apache.fop.area.inline.AbstractTextArea;
import org.apache.fop.area.inline.Container;
import org.apache.fop.area.inline.ForeignObject;
import org.apache.fop.area.inline.Image;
import org.apache.fop.area.inline.InlineArea;
import org.apache.fop.area.inline.InlineBlockParent;
import org.apache.fop.area.inline.InlineParent;
import org.apache.fop.area.inline.InlineViewport;
import org.apache.fop.area.inline.Leader;
import org.apache.fop.area.inline.Space;
import org.apache.fop.area.inline.SpaceArea;
import org.apache.fop.area.inline.TextArea;
import org.apache.fop.area.inline.WordArea;
import org.apache.fop.fo.ElementMappingRegistry;
import org.apache.fop.fo.expr.PropertyException;
import org.apache.fop.fo.extensions.ExtensionAttachment;
import org.apache.fop.fonts.Font;
import org.apache.fop.fonts.FontInfo;
import org.apache.fop.traits.BorderProps;
import org.apache.fop.traits.Visibility;
import org.apache.fop.util.ColorUtil;
import org.apache.fop.util.ContentHandlerFactory;
import org.apache.fop.util.ContentHandlerFactoryRegistry;
import org.apache.fop.util.ConversionUtils;
import org.apache.fop.util.DefaultErrorListener;
import org.apache.fop.util.LanguageTags;
import org.apache.fop.util.XMLConstants;
import org.apache.fop.util.XMLUtil;
import static org.apache.fop.fo.Constants.FO_REGION_AFTER;
import static org.apache.fop.fo.Constants.FO_REGION_BEFORE;
import static org.apache.fop.fo.Constants.FO_REGION_BODY;
import static org.apache.fop.fo.Constants.FO_REGION_END;
import static org.apache.fop.fo.Constants.FO_REGION_START;
public class AreaTreeParser {
protected static final Log log = LogFactory.getLog(AreaTreeParser.class);
private static SAXTransformerFactory tFactory
= (SAXTransformerFactory)SAXTransformerFactory.newInstance();
public void parse(Source src, AreaTreeModel treeModel, FOUserAgent userAgent)
throws TransformerException {
Transformer transformer = tFactory.newTransformer();
transformer.setErrorListener(new DefaultErrorListener(log));
SAXResult res = new SAXResult(getContentHandler(treeModel, userAgent));
transformer.transform(src, res);
}
public ContentHandler getContentHandler(AreaTreeModel treeModel, FOUserAgent userAgent) {
ElementMappingRegistry elementMappingRegistry
= userAgent.getElementMappingRegistry();
return new Handler(treeModel, userAgent, elementMappingRegistry);
}
private static class Handler extends DefaultHandler {
private Map<String, AbstractMaker> makers = new java.util.HashMap<String, AbstractMaker>();
private AreaTreeModel treeModel;
private FOUserAgent userAgent;
private ElementMappingRegistry elementMappingRegistry;
private Attributes lastAttributes;
private CharBuffer content = CharBuffer.allocate(64);
private boolean ignoreCharacters = true;
private PageViewport currentPageViewport;
private Map<String, PageViewport> pageViewportsByKey
= new java.util.HashMap<String, PageViewport>();
private Set<String> idFirstsAssigned = new java.util.HashSet<String>();
private Stack<Object> areaStack = new Stack<Object>();
private boolean firstFlow;
private Stack<String> delegateStack = new Stack<String>();
private ContentHandler delegate;
private DOMImplementation domImplementation;
private Locator locator;
public Handler(AreaTreeModel treeModel, FOUserAgent userAgent,
ElementMappingRegistry elementMappingRegistry) {
this.treeModel = treeModel;
this.userAgent = userAgent;
this.elementMappingRegistry = elementMappingRegistry;
makers.put("areaTree", new AreaTreeMaker());
makers.put("page", new PageMaker());
makers.put("pageSequence", new PageSequenceMaker());
makers.put("title", new TitleMaker());
makers.put("pageViewport", new PageViewportMaker());
makers.put("regionViewport", new RegionViewportMaker());
makers.put("regionBefore", new RegionBeforeMaker());
makers.put("regionAfter", new RegionAfterMaker());
makers.put("regionStart", new RegionStartMaker());
makers.put("regionEnd", new RegionEndMaker());
makers.put("regionBody", new RegionBodyMaker());
makers.put("flow", new FlowMaker());
makers.put("mainReference", new MainReferenceMaker());
makers.put("span", new SpanMaker());
makers.put("footnote", new FootnoteMaker());
makers.put("beforeFloat", new BeforeFloatMaker());
makers.put("block", new BlockMaker());
makers.put("lineArea", new LineAreaMaker());
makers.put("inline", new InlineMaker());
makers.put("inlineparent", new InlineParentMaker());
makers.put("inlineblockparent", new InlineBlockParentMaker());
makers.put("text", new TextMaker());
makers.put("word", new WordMaker());
makers.put("space", new SpaceMaker());
makers.put("leader", new LeaderMaker());
makers.put("viewport", new InlineViewportMaker());
makers.put("container", new ContainerMaker());
makers.put("image", new ImageMaker());
makers.put("foreignObject", new ForeignObjectMaker());
makers.put("bookmarkTree", new BookmarkTreeMaker());
makers.put("bookmark", new BookmarkMaker());
makers.put("destination", new DestinationMaker());
}
private Area findAreaType(Class clazz) {
if (areaStack.size() > 0) {
int pos = areaStack.size() - 1;
Object obj = null;
while (pos >= 0) {
obj = areaStack.get(pos);
if (clazz.isInstance(obj)) {
break;
} else {
pos--;
}
}
if (pos >= 0) {
return (Area)obj;
}
}
return null;
}
private RegionViewport getCurrentRegionViewport() {
return (RegionViewport)findAreaType(RegionViewport.class);
}
private BodyRegion getCurrentBodyRegion() {
return (BodyRegion)findAreaType(BodyRegion.class);
}
private BlockParent getCurrentBlockParent() {
return (BlockParent)findAreaType(BlockParent.class);
}
private AbstractTextArea getCurrentText() {
return (AbstractTextArea)findAreaType(AbstractTextArea.class);
}
private InlineViewport getCurrentViewport() {
return (InlineViewport)findAreaType(InlineViewport.class);
}
public void setDocumentLocator(Locator locator) {
this.locator = locator;
}
private Locator getLocator() {
return this.locator;
}
public void startElement(String uri, String localName, String qName, Attributes attributes)
throws SAXException {
if (delegate != null) {
delegateStack.push(qName);
delegate.startElement(uri, localName, qName, attributes);
} else if (domImplementation != null) {
TransformerHandler handler;
try {
handler = tFactory.newTransformerHandler();
} catch (TransformerConfigurationException e) {
throw new SAXException("Error creating a new TransformerHandler", e);
}
Document doc = domImplementation.createDocument(uri, qName, null);
doc.removeChild(doc.getDocumentElement());
handler.setResult(new DOMResult(doc));
Area parent = (Area)areaStack.peek();
((ForeignObject)parent).setDocument(doc);
domImplementation = null;
this.delegate = handler;
delegateStack.push(qName);
delegate.startDocument();
delegate.startElement(uri, localName, qName, attributes);
} else {
boolean handled = true;
if ("".equals(uri)) {
if (localName.equals("structureTree")) {
delegate = new DefaultHandler();
delegateStack.push(qName);
delegate.startDocument();
delegate.startElement(uri, localName, qName, attributes);
} else {
handled = startAreaTreeElement(localName, attributes);
}
} else {
ContentHandlerFactoryRegistry registry
= userAgent.getContentHandlerFactoryRegistry();
ContentHandlerFactory factory = registry.getFactory(uri);
if (factory != null) {
delegate = factory.createContentHandler();
delegateStack.push(qName);
delegate.startDocument();
delegate.startElement(uri, localName, qName, attributes);
} else {
handled = false;
}
}
if (!handled) {
if (uri == null || uri.length() == 0) {
throw new SAXException("Unhandled element " + localName
+ " in namespace: " + uri);
} else {
log.warn("Unhandled element " + localName
+ " in namespace: " + uri);
}
}
}
}
private boolean startAreaTreeElement(String localName, Attributes attributes)
throws SAXException {
lastAttributes = new AttributesImpl(attributes);
Maker maker = makers.get(localName);
content.clear();
ignoreCharacters = true;
if (maker != null) {
ignoreCharacters = maker.ignoreCharacters();
maker.startElement(attributes);
} else if ("extension-attachments".equals(localName)) {
} else {
return false;
}
return true;
}
public void endElement(String uri, String localName, String qName) throws SAXException {
if (delegate != null) {
delegate.endElement(uri, localName, qName);
delegateStack.pop();
if (delegateStack.size() == 0) {
delegate.endDocument();
if (delegate instanceof ContentHandlerFactory.ObjectSource) {
Object obj = ((ContentHandlerFactory.ObjectSource)delegate).getObject();
handleExternallyGeneratedObject(obj);
}
delegate = null;
}
} else {
if ("".equals(uri)) {
Maker maker = makers.get(localName);
if (maker != null) {
maker.endElement();
content.clear();
}
ignoreCharacters = true;
} else {
}
}
}
private interface Maker {
void startElement(Attributes attributes) throws SAXException;
void endElement();
boolean ignoreCharacters();
}
private abstract class AbstractMaker implements Maker {
public void startElement(Attributes attributes) throws SAXException {
}
public void endElement() {
}
public boolean ignoreCharacters() {
return true;
}
}
private class AreaTreeMaker extends AbstractMaker {
public void startElement(Attributes attributes) {
idFirstsAssigned.clear();
}
}
private class PageSequenceMaker extends AbstractMaker {
public void startElement(Attributes attributes) {
PageSequence pageSequence = new PageSequence(null);
String lang = attributes.getValue(javax.xml.XMLConstants.XML_NS_URI, "lang");
if (lang != null) {
pageSequence.setLocale(LanguageTags.toLocale(lang));
}
transferForeignObjects(attributes, pageSequence);
areaStack.push(pageSequence);
}
}
private class TitleMaker extends AbstractMaker {
public void startElement(Attributes attributes) {
LineArea line = new LineArea();
transferForeignObjects(attributes, line);
areaStack.push(line);
}
public void endElement() {
LineArea line = (LineArea)areaStack.pop();
PageSequence pageSequence = (PageSequence)areaStack.peek();
pageSequence.setTitle(line);
}
}
private class PageViewportMaker extends AbstractMaker {
public void startElement(Attributes attributes) {
if (!areaStack.isEmpty()) {
PageSequence pageSequence = (PageSequence)areaStack.peek();
treeModel.startPageSequence(pageSequence);
areaStack.pop();
}
if (currentPageViewport != null) {
throw new IllegalStateException("currentPageViewport must be null");
}
Rectangle viewArea = XMLUtil.getAttributeAsRectangle(attributes, "bounds");
int pageNumber = XMLUtil.getAttributeAsInt(attributes, "nr", -1);
String key = attributes.getValue("key");
String pageNumberString = attributes.getValue("formatted-nr");
String pageMaster = attributes.getValue("simple-page-master-name");
boolean blank = XMLUtil.getAttributeAsBoolean(attributes, "blank", false);
currentPageViewport = new PageViewport(viewArea,
pageNumber, pageNumberString,
pageMaster, blank);
transferForeignObjects(attributes, currentPageViewport);
currentPageViewport.setKey(key);
pageViewportsByKey.put(key, currentPageViewport);
}
}
private class PageMaker extends AbstractMaker {
public void startElement(Attributes attributes) {
Page p = new Page();
currentPageViewport.setPage(p);
}
public void endElement() {
treeModel.addPage(currentPageViewport);
currentPageViewport = null;
}
}
private class RegionViewportMaker extends AbstractMaker {
public void startElement(Attributes attributes) {
RegionViewport rv = getCurrentRegionViewport();
if (rv != null) {
throw new IllegalStateException("Current RegionViewport must be null");
}
Rectangle2D viewArea = XMLUtil.getAttributeAsRectangle2D(attributes, "rect");
rv = new RegionViewport(viewArea);
transferForeignObjects(attributes, rv);
rv.setClip(XMLUtil.getAttributeAsBoolean(attributes, "clipped", false));
setAreaAttributes(attributes, rv);
setTraits(attributes, rv, SUBSET_COMMON);
setTraits(attributes, rv, SUBSET_BOX);
setTraits(attributes, rv, SUBSET_COLOR);
areaStack.push(rv);
}
public void endElement() {
assertObjectOfClass(areaStack.pop(), RegionViewport.class);
}
}
private class RegionBeforeMaker extends AbstractMaker {
public void startElement(Attributes attributes) {
pushNewRegionReference(attributes, FO_REGION_BEFORE);
}
public void endElement() {
assertObjectOfClass(areaStack.pop(), RegionReference.class);
}
}
private class RegionAfterMaker extends AbstractMaker {
public void startElement(Attributes attributes) {
pushNewRegionReference(attributes, FO_REGION_AFTER);
}
public void endElement() {
assertObjectOfClass(areaStack.pop(), RegionReference.class);
}
}
private class RegionStartMaker extends AbstractMaker {
public void startElement(Attributes attributes) {
pushNewRegionReference(attributes, FO_REGION_START);
}
public void endElement() {
assertObjectOfClass(areaStack.pop(), RegionReference.class);
}
}
private class RegionEndMaker extends AbstractMaker {
public void startElement(Attributes attributes) {
pushNewRegionReference(attributes, FO_REGION_END);
}
public void endElement() {
assertObjectOfClass(areaStack.pop(), RegionReference.class);
}
}
private class RegionBodyMaker extends AbstractMaker {
public void startElement(Attributes attributes) {
BodyRegion body = getCurrentBodyRegion();
if (body != null) {
throw new IllegalStateException("Current BodyRegion must be null");
}
String regionName = attributes.getValue("name");
int columnCount = XMLUtil.getAttributeAsInt(attributes, "columnCount", 1);
int columnGap = XMLUtil.getAttributeAsInt(attributes, "columnGap", 0);
RegionViewport rv = getCurrentRegionViewport();
body = new BodyRegion(FO_REGION_BODY, regionName, rv, columnCount, columnGap);
transferForeignObjects(attributes, body);
body.setCTM(getAttributeAsCTM(attributes, "ctm"));
setAreaAttributes(attributes, body);
setTraits(attributes, body, SUBSET_BORDER_PADDING);
rv.setRegionReference(body);
currentPageViewport.getPage().setRegionViewport(FO_REGION_BODY, rv);
areaStack.push(body);
}
public void endElement() {
assertObjectOfClass(areaStack.pop(), BodyRegion.class);
}
}
private class FlowMaker extends AbstractMaker {
public void startElement(Attributes attributes) {
BodyRegion body = getCurrentBodyRegion();
if (!firstFlow) {
body.getMainReference().getCurrentSpan().moveToNextFlow();
} else {
firstFlow = false;
}
NormalFlow flow = body.getMainReference().getCurrentSpan().getCurrentFlow();
transferForeignObjects(attributes, flow);
setAreaAttributes(attributes, flow);
areaStack.push(flow);
}
public void endElement() {
assertObjectOfClass(areaStack.pop(), NormalFlow.class);
}
}
private class MainReferenceMaker extends AbstractMaker {
public void startElement(Attributes attributes) {
MainReference mr = getCurrentBodyRegion().getMainReference();
transferForeignObjects(attributes, mr);
setAreaAttributes(attributes, mr);
}
}
private class SpanMaker extends AbstractMaker {
public void startElement(Attributes attributes) {
int ipd = XMLUtil.getAttributeAsInt(attributes, "ipd", 0);
int columnCount = XMLUtil.getAttributeAsInt(attributes, "columnCount", 1);
BodyRegion body = getCurrentBodyRegion();
Span span = new Span(columnCount,
body.getColumnGap(), ipd);
transferForeignObjects(attributes, span);
setAreaAttributes(attributes, span);
body.getMainReference().getSpans().add(span);
firstFlow = true;
}
}
private class FootnoteMaker extends AbstractMaker {
public void startElement(Attributes attributes) {
Footnote fn = getCurrentBodyRegion().getFootnote();
transferForeignObjects(attributes, fn);
fn.setTop(XMLUtil.getAttributeAsInt(attributes, "top-offset", 0));
areaStack.push(fn);
}
public void endElement() {
assertObjectOfClass(areaStack.pop(), Footnote.class);
}
}
private class BeforeFloatMaker extends AbstractMaker {
public void startElement(Attributes attributes) {
BeforeFloat bf = getCurrentBodyRegion().getBeforeFloat();
transferForeignObjects(attributes, bf);
areaStack.push(bf);
}
public void endElement() {
assertObjectOfClass(areaStack.pop(), BeforeFloat.class);
}
}
private class BlockMaker extends AbstractMaker {
public void startElement(Attributes attributes) {
boolean isViewport = XMLUtil.getAttributeAsBoolean(attributes,
"is-viewport-area", false);
Block block;
if (isViewport) {
BlockViewport bv = new BlockViewport();
bv.setClip(XMLUtil.getAttributeAsBoolean(attributes, "clipped", false));
bv.setCTM(getAttributeAsCTM(attributes, "ctm"));
if (bv.getPositioning() != BlockViewport.RELATIVE) {
bv.setXOffset(
XMLUtil.getAttributeAsInt(attributes, "left-position", 0));
bv.setYOffset(
XMLUtil.getAttributeAsInt(attributes, "top-position", 0));
}
block = bv;
} else {
block = new Block();
}
String positioning = attributes.getValue("positioning");
if ("absolute".equalsIgnoreCase(positioning)) {
block.setPositioning(Block.ABSOLUTE);
} else if ("fixed".equalsIgnoreCase(positioning)) {
block.setPositioning(Block.FIXED);
} else if ("relative".equalsIgnoreCase(positioning)) {
block.setPositioning(Block.RELATIVE);
} else {
block.setPositioning(Block.STACK);
}
if (attributes.getValue("left-offset") != null) {
block.setXOffset(XMLUtil.getAttributeAsInt(attributes, "left-offset", 0));
}
if (attributes.getValue("top-offset") != null) {
block.setYOffset(XMLUtil.getAttributeAsInt(attributes, "top-offset", 0));
}
if (attributes.getValue("visibility") != null) {
block.addTrait(Trait.VISIBILITY, Visibility.valueOf(attributes.getValue("visibility")));
}
transferForeignObjects(attributes, block);
setAreaAttributes(attributes, block);
setTraits(attributes, block, SUBSET_COMMON);
setTraits(attributes, block, SUBSET_BOX);
setTraits(attributes, block, SUBSET_COLOR);
Area parent = (Area)areaStack.peek();
parent.addChildArea(block);
areaStack.push(block);
}
public void endElement() {
assertObjectOfClass(areaStack.pop(), Block.class);
}
}
private class LineAreaMaker extends AbstractMaker {
public void startElement(Attributes attributes) {
LineArea line = new LineArea();
setAreaAttributes(attributes, line);
setTraits(attributes, line, SUBSET_COMMON);
setTraits(attributes, line, SUBSET_BOX);
setTraits(attributes, line, SUBSET_COLOR);
BlockParent parent = getCurrentBlockParent();
parent.addChildArea(line);
areaStack.push(line);
}
public void endElement() {
assertObjectOfClass(areaStack.pop(), LineArea.class);
}
}
private class InlineMaker extends AbstractMaker {
public void startElement(Attributes attributes) {
InlineArea inl = new InlineArea();
transferForeignObjects(attributes, inl);
inl.setBlockProgressionOffset(XMLUtil.getAttributeAsInt(attributes, "offset", 0));
setAreaAttributes(attributes, inl);
setTraits(attributes, inl, SUBSET_COMMON);
setTraits(attributes, inl, SUBSET_BOX);
setTraits(attributes, inl, SUBSET_COLOR);
Area parent = (Area)areaStack.peek();
parent.addChildArea(inl);
areaStack.push(inl);
}
public void endElement() {
assertObjectOfClass(areaStack.pop(), InlineArea.class);
}
}
private class InlineParentMaker extends AbstractMaker {
public void startElement(Attributes attributes) {
InlineParent ip = new InlineParent();
transferForeignObjects(attributes, ip);
ip.setBlockProgressionOffset(XMLUtil.getAttributeAsInt(attributes, "offset", 0));
setAreaAttributes(attributes, ip);
setTraits(attributes, ip, SUBSET_COMMON);
setTraits(attributes, ip, SUBSET_BOX);
setTraits(attributes, ip, SUBSET_COLOR);
setTraits(attributes, ip, SUBSET_LINK);
Area parent = (Area)areaStack.peek();
parent.addChildArea(ip);
areaStack.push(ip);
}
public void endElement() {
assertObjectOfClass(areaStack.pop(), InlineParent.class);
}
}
private class InlineBlockParentMaker extends AbstractMaker {
public void startElement(Attributes attributes) {
InlineBlockParent ibp = new InlineBlockParent();
transferForeignObjects(attributes, ibp);
ibp.setBlockProgressionOffset(XMLUtil.getAttributeAsInt(attributes, "offset", 0));
setAreaAttributes(attributes, ibp);
setTraits(attributes, ibp, SUBSET_COMMON);
setTraits(attributes, ibp, SUBSET_BOX);
setTraits(attributes, ibp, SUBSET_COLOR);
Area parent = (Area)areaStack.peek();
parent.addChildArea(ibp);
areaStack.push(ibp);
}
public void endElement() {
assertObjectOfClass(areaStack.pop(), InlineBlockParent.class);
}
}
private class TextMaker extends AbstractMaker {
public void startElement(Attributes attributes) {
if (getCurrentText() != null) {
throw new IllegalStateException("Current Text must be null");
}
TextArea text = new TextArea();
setAreaAttributes(attributes, text);
setTraits(attributes, text, SUBSET_COMMON);
setTraits(attributes, text, SUBSET_BOX);
setTraits(attributes, text, SUBSET_COLOR);
setTraits(attributes, text, SUBSET_FONT);
text.setBaselineOffset(XMLUtil.getAttributeAsInt(attributes, "baseline", 0));
text.setBlockProgressionOffset(XMLUtil.getAttributeAsInt(attributes, "offset", 0));
text.setTextLetterSpaceAdjust(XMLUtil.getAttributeAsInt(attributes,
"tlsadjust", 0));
text.setTextWordSpaceAdjust(XMLUtil.getAttributeAsInt(attributes,
"twsadjust", 0));
Area parent = (Area)areaStack.peek();
parent.addChildArea(text);
areaStack.push(text);
}
public void endElement() {
assertObjectOfClass(areaStack.pop(), TextArea.class);
}
}
private class WordMaker extends AbstractMaker {
public void endElement() {
int offset = XMLUtil.getAttributeAsInt(lastAttributes, "offset", 0);
int[] letterAdjust
= ConversionUtils.toIntArray(
lastAttributes.getValue("letter-adjust"), "\\s");
int level = XMLUtil.getAttributeAsInt(lastAttributes, "level", -1);
boolean reversed = XMLUtil.getAttributeAsBoolean(lastAttributes, "reversed", false);
int[][] gposAdjustments
= XMLUtil.getAttributeAsPositionAdjustments(lastAttributes, "position-adjust");
content.flip();
WordArea word = new WordArea(
offset, level, content.toString().trim(), letterAdjust,
null, gposAdjustments, reversed);
AbstractTextArea text = getCurrentText();
word.setParentArea(text);
text.addChildArea(word);
}
public boolean ignoreCharacters() {
return false;
}
}
private class SpaceMaker extends AbstractMaker {
public void endElement() {
int offset = XMLUtil.getAttributeAsInt(lastAttributes, "offset", 0);
if (content.position() > 0) {
content.flip();
boolean adjustable = XMLUtil.getAttributeAsBoolean(lastAttributes, "adj", true);
int level = XMLUtil.getAttributeAsInt(lastAttributes, "level", -1);
SpaceArea space = new SpaceArea(offset, level, content.charAt(0), adjustable);
AbstractTextArea text = getCurrentText();
space.setParentArea(text);
text.addChildArea(space);
} else {
Space space = new Space();
setAreaAttributes(lastAttributes, space);
setTraits(lastAttributes, space, SUBSET_COMMON);
setTraits(lastAttributes, space, SUBSET_BOX);
setTraits(lastAttributes, space, SUBSET_COLOR);
space.setBlockProgressionOffset(offset);
Area parent = (Area)areaStack.peek();
parent.addChildArea(space);
}
}
public boolean ignoreCharacters() {
return false;
}
}
private class LeaderMaker extends AbstractMaker {
public void startElement(Attributes attributes) {
Leader leader = new Leader();
transferForeignObjects(attributes, leader);
setAreaAttributes(attributes, leader);
setTraits(attributes, leader, SUBSET_COMMON);
setTraits(attributes, leader, SUBSET_BOX);
setTraits(attributes, leader, SUBSET_COLOR);
setTraits(attributes, leader, SUBSET_FONT);
leader.setBlockProgressionOffset(
XMLUtil.getAttributeAsInt(attributes, "offset", 0));
String ruleStyle = attributes.getValue("ruleStyle");
if (ruleStyle != null) {
leader.setRuleStyle(ruleStyle);
}
leader.setRuleThickness(
XMLUtil.getAttributeAsInt(attributes, "ruleThickness", 0));
Area parent = (Area)areaStack.peek();
parent.addChildArea(leader);
}
}
private class ContainerMaker extends AbstractMaker {
public void startElement(Attributes attributes) {
Container container = new Container();
transferForeignObjects(attributes, container);
InlineViewport parent = (InlineViewport) areaStack.peek();
parent.setContent(container);
areaStack.push(container);
}
public void endElement() {
assertObjectOfClass(areaStack.pop(), Container.class);
}
}
private class InlineViewportMaker extends AbstractMaker {
public void startElement(Attributes attributes) {
int level = XMLUtil.getAttributeAsInt(attributes, "level", -1);
InlineViewport viewport = new InlineViewport(null, level);
transferForeignObjects(attributes, viewport);
setAreaAttributes(attributes, viewport);
setTraits(attributes, viewport, SUBSET_COMMON);
setTraits(attributes, viewport, SUBSET_BOX);
setTraits(attributes, viewport, SUBSET_COLOR);
viewport.setContentPosition(XMLUtil.getAttributeAsRectangle2D(attributes, "pos"));
viewport.setClip(XMLUtil.getAttributeAsBoolean(attributes, "clip", false));
viewport.setBlockProgressionOffset(
XMLUtil.getAttributeAsInt(attributes, "offset", 0));
Area parent = (Area)areaStack.peek();
parent.addChildArea(viewport);
areaStack.push(viewport);
}
public void endElement() {
assertObjectOfClass(areaStack.pop(), InlineViewport.class);
}
}
private class ImageMaker extends AbstractMaker {
public void startElement(Attributes attributes) {
String url = attributes.getValue("url");
Image image = new Image(url);
transferForeignObjects(attributes, image);
setAreaAttributes(attributes, image);
setTraits(attributes, image, SUBSET_COMMON);
getCurrentViewport().setContent(image);
}
}
private class ForeignObjectMaker extends AbstractMaker {
public void startElement(Attributes attributes) throws SAXException {
String ns = attributes.getValue("ns");
domImplementation
= elementMappingRegistry.getDOMImplementationForNamespace(ns);
if (domImplementation == null) {
throw new SAXException("No DOMImplementation could be"
+ " identified to handle namespace: " + ns);
}
ForeignObject foreign = new ForeignObject(ns);
transferForeignObjects(attributes, foreign);
setAreaAttributes(attributes, foreign);
setTraits(attributes, foreign, SUBSET_COMMON);
getCurrentViewport().setContent(foreign);
areaStack.push(foreign);
}
public void endElement() {
assertObjectOfClass(areaStack.pop(), ForeignObject.class);
}
}
private class BookmarkTreeMaker extends AbstractMaker {
public void startElement(Attributes attributes) {
BookmarkData bm = new BookmarkData();
areaStack.push(bm);
}
public void endElement() {
Object tos = areaStack.pop();
assertObjectOfClass(tos, BookmarkData.class);
treeModel.handleOffDocumentItem((BookmarkData) tos);
}
}
private class BookmarkMaker extends AbstractMaker {
public void startElement(Attributes attributes) {
String title = attributes.getValue("title");
boolean showChildren = XMLUtil.getAttributeAsBoolean(
attributes, "show-children", false);
String[] linkdata
= InternalLink.parseXMLAttribute(attributes.getValue("internal-link"));
PageViewport pv = pageViewportsByKey.get(linkdata[0]);
BookmarkData bm = new BookmarkData(title, showChildren, pv, linkdata[1]);
Object tos = areaStack.peek();
if (tos instanceof BookmarkData) {
BookmarkData parent = (BookmarkData) tos;
parent.addSubData(bm);
}
areaStack.push(bm);
}
public void endElement() {
assertObjectOfClass(areaStack.pop(), BookmarkData.class);
}
}
private class DestinationMaker extends AbstractMaker {
public void startElement(Attributes attributes) {
String[] linkdata
= InternalLink.parseXMLAttribute(lastAttributes.getValue("internal-link"));
PageViewport pv = pageViewportsByKey.get(linkdata[0]);
DestinationData dest = new DestinationData(linkdata[1]);
List<PageViewport> pages = new java.util.ArrayList<PageViewport>();
pages.add(pv);
dest.resolveIDRef(linkdata[1], pages);
areaStack.push(dest);
}
public void endElement() {
Object tos = areaStack.pop();
assertObjectOfClass(tos, DestinationData.class);
treeModel.handleOffDocumentItem((DestinationData) tos);
}
}
private void pushNewRegionReference(Attributes attributes, int side) {
String regionName = attributes.getValue("name");
RegionViewport rv = getCurrentRegionViewport();
RegionReference reg = new RegionReference(side,
regionName, rv);
transferForeignObjects(attributes, reg);
reg.setCTM(getAttributeAsCTM(attributes, "ctm"));
setAreaAttributes(attributes, reg);
setTraits(attributes, reg, SUBSET_BORDER_PADDING);
rv.setRegionReference(reg);
currentPageViewport.getPage().setRegionViewport(
side, rv);
areaStack.push(reg);
}
private void assertObjectOfClass(Object obj, Class clazz) {
if (!clazz.isInstance(obj)) {
throw new IllegalStateException("Object is not an instance of "
+ clazz.getName() + " but of " + obj.getClass().getName());
}
}
protected void handleExternallyGeneratedObject(Object obj) {
if (areaStack.size() == 0 && obj instanceof ExtensionAttachment) {
ExtensionAttachment attachment = (ExtensionAttachment)obj;
if (this.currentPageViewport == null) {
this.treeModel.handleOffDocumentItem(
new OffDocumentExtensionAttachment(attachment));
} else {
this.currentPageViewport.addExtensionAttachment(attachment);
}
} else {
Object o = areaStack.peek();
if (o instanceof AreaTreeObject && obj instanceof ExtensionAttachment) {
AreaTreeObject ato = (AreaTreeObject)o;
ExtensionAttachment attachment = (ExtensionAttachment)obj;
ato.addExtensionAttachment(attachment);
} else {
log.warn("Don't know how to handle externally generated object: " + obj);
}
}
}
private void setAreaAttributes(Attributes attributes, Area area) {
area.setIPD(Integer.parseInt(attributes.getValue("ipd")));
area.setBPD(Integer.parseInt(attributes.getValue("bpd")));
area.setBidiLevel(XMLUtil.getAttributeAsInt(attributes, "level", -1));
}
private static final Object[] SUBSET_COMMON = new Object[] {
Trait.PROD_ID, Trait.LAYER};
private static final Object[] SUBSET_LINK = new Object[] {
Trait.INTERNAL_LINK, Trait.EXTERNAL_LINK};
private static final Object[] SUBSET_COLOR = new Object[] {
Trait.BACKGROUND, Trait.COLOR};
private static final Object[] SUBSET_FONT = new Object[] {
Trait.FONT, Trait.FONT_SIZE, Trait.BLINK,
Trait.OVERLINE, Trait.OVERLINE_COLOR,
Trait.LINETHROUGH, Trait.LINETHROUGH_COLOR,
Trait.UNDERLINE, Trait.UNDERLINE_COLOR};
private static final Object[] SUBSET_BOX = new Object[] {
Trait.BORDER_BEFORE, Trait.BORDER_AFTER, Trait.BORDER_START, Trait.BORDER_END,
Trait.SPACE_BEFORE, Trait.SPACE_AFTER, Trait.SPACE_START, Trait.SPACE_END,
Trait.PADDING_BEFORE, Trait.PADDING_AFTER, Trait.PADDING_START, Trait.PADDING_END,
Trait.START_INDENT, Trait.END_INDENT,
Trait.IS_REFERENCE_AREA, Trait.IS_VIEWPORT_AREA};
private static final Object[] SUBSET_BORDER_PADDING = new Object[] {
Trait.BORDER_BEFORE, Trait.BORDER_AFTER, Trait.BORDER_START, Trait.BORDER_END,
Trait.PADDING_BEFORE, Trait.PADDING_AFTER, Trait.PADDING_START, Trait.PADDING_END};
private void setTraits(Attributes attributes, Area area, Object[] traitSubset) {
for (int i = traitSubset.length; --i >= 0;) {
Integer trait = (Integer) traitSubset[i];
String traitName = Trait.getTraitName(trait);
String value = attributes.getValue(traitName);
if (value != null) {
Class cl = Trait.getTraitClass(trait);
if (cl == Integer.class) {
area.addTrait(trait, Integer.valueOf(value));
} else if (cl == Boolean.class) {
area.addTrait(trait, Boolean.valueOf(value));
} else if (cl == String.class) {
area.addTrait(trait, value);
if (Trait.PROD_ID.equals(trait)
&& !idFirstsAssigned.contains(value)
&& currentPageViewport != null) {
currentPageViewport.setFirstWithID(value);
idFirstsAssigned.add(value);
}
} else if (cl == Color.class) {
try {
area.addTrait(trait, ColorUtil.parseColorString(this.userAgent, value));
} catch (PropertyException e) {
throw new IllegalArgumentException(e.getMessage());
}
} else if (cl == InternalLink.class) {
area.addTrait(trait, new InternalLink(value));
} else if (cl == Trait.ExternalLink.class) {
area.addTrait(trait, Trait.ExternalLink.makeFromTraitValue(value));
} else if (cl == Background.class) {
Background bkg = new Background();
try {
Color col = ColorUtil.parseColorString(
this.userAgent, attributes.getValue("bkg-color"));
bkg.setColor(col);
} catch (PropertyException e) {
throw new IllegalArgumentException(e.getMessage());
}
String uri = attributes.getValue("bkg-img");
if (uri != null) {
bkg.setURL(uri);
try {
ImageManager manager = userAgent.getImageManager();
ImageSessionContext sessionContext
= userAgent.getImageSessionContext();
ImageInfo info = manager.getImageInfo(uri, sessionContext);
bkg.setImageInfo(info);
} catch (ImageException e) {
ResourceEventProducer eventProducer
= ResourceEventProducer.Provider.get(
this.userAgent.getEventBroadcaster());
eventProducer.imageError(this, uri, e, getLocator());
} catch (FileNotFoundException fnfe) {
ResourceEventProducer eventProducer
= ResourceEventProducer.Provider.get(
this.userAgent.getEventBroadcaster());
eventProducer.imageNotFound(this, uri, fnfe, getLocator());
} catch (IOException ioe) {
ResourceEventProducer eventProducer
= ResourceEventProducer.Provider.get(
this.userAgent.getEventBroadcaster());
eventProducer.imageIOError(this, uri, ioe, getLocator());
}
String repeat = attributes.getValue("bkg-repeat");
if (repeat != null) {
bkg.setRepeat(repeat);
}
bkg.setHoriz(XMLUtil.getAttributeAsInt(attributes,
"bkg-horz-offset", 0));
bkg.setVertical(XMLUtil.getAttributeAsInt(attributes,
"bkg-vert-offset", 0));
}
area.addTrait(trait, bkg);
} else if (cl == BorderProps.class) {
area.addTrait(trait, BorderProps.valueOf(this.userAgent, value));
}
} else {
if (Trait.FONT.equals(trait)) {
String fontName = attributes.getValue("font-name");
if (fontName != null) {
String fontStyle = attributes.getValue("font-style");
int fontWeight = XMLUtil.getAttributeAsInt(
attributes, "font-weight", Font.WEIGHT_NORMAL);
area.addTrait(trait,
FontInfo.createFontKey(fontName, fontStyle, fontWeight));
}
}
}
}
}
private static CTM getAttributeAsCTM(Attributes attributes, String name) {
String s = attributes.getValue(name).trim();
if (s.startsWith("[") && s.endsWith("]")) {
s = s.substring(1, s.length() - 1);
double[] values = ConversionUtils.toDoubleArray(s, "\\s");
if (values.length != 6) {
throw new IllegalArgumentException("CTM must consist of 6 double values!");
}
return new CTM(values[0], values[1], values[2], values[3], values[4], values[5]);
} else {
throw new IllegalArgumentException("CTM must be surrounded by square brackets!");
}
}
private static void transferForeignObjects(Attributes atts, AreaTreeObject ato) {
for (int i = 0, c = atts.getLength(); i < c; i++) {
String ns = atts.getURI(i);
if (ns.length() > 0) {
if (XMLConstants.XMLNS_NAMESPACE_URI.equals(ns)) {
continue;
}
QName qname = new QName(ns, atts.getQName(i));
ato.setForeignAttribute(qname, atts.getValue(i));
}
}
}
public void characters(char[] ch, int start, int length) throws SAXException {
if (delegate != null) {
delegate.characters(ch, start, length);
} else if (!ignoreCharacters) {
int maxLength = this.content.capacity() - this.content.position();
if (maxLength < length) {
CharBuffer newContent
= CharBuffer.allocate(this.content.position() + length);
this.content.flip();
newContent.put(this.content);
this.content = newContent;
}
this.content.limit(this.content.capacity());
this.content.put(ch, start, length);
if (this.content.position() < this.content.limit()) {
this.content.limit(this.content.position());
}
}
}
}
}
AreaTreeParser
log: Log
tFactory: SAXTransformerFactory
