diff options
Diffstat (limited to 'src/main/java/com/lowagie/text/xml/SAXiTextHandler.java')
| -rw-r--r-- | src/main/java/com/lowagie/text/xml/SAXiTextHandler.java | 921 |
1 files changed, 0 insertions, 921 deletions
diff --git a/src/main/java/com/lowagie/text/xml/SAXiTextHandler.java b/src/main/java/com/lowagie/text/xml/SAXiTextHandler.java deleted file mode 100644 index 00fb5bf..0000000 --- a/src/main/java/com/lowagie/text/xml/SAXiTextHandler.java +++ /dev/null @@ -1,921 +0,0 @@ -/*
- * $Id: SAXiTextHandler.java,v 1.52 2006/04/20 11:49:41 blowagie Exp $
- * $Name: $
- *
- * Copyright 2001, 2002 by Bruno Lowagie.
- *
- * The contents of this file are subject to the Mozilla Public License Version 1.1
- * (the "License"); you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at http://www.mozilla.org/MPL/
- *
- * Software distributed under the License is distributed on an "AS IS" basis,
- * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
- * for the specific language governing rights and limitations under the License.
- *
- * The Original Code is 'iText, a free JAVA-PDF library'.
- *
- * The Initial Developer of the Original Code is Bruno Lowagie. Portions created by
- * the Initial Developer are Copyright (C) 1999, 2000, 2001, 2002 by Bruno Lowagie.
- * All Rights Reserved.
- * Co-Developer of the code is Paulo Soares. Portions created by the Co-Developer
- * are Copyright (C) 2000, 2001, 2002 by Paulo Soares. All Rights Reserved.
- *
- * Contributor(s): all the names of the contributors are added in the source code
- * where applicable.
- *
- * Alternatively, the contents of this file may be used under the terms of the
- * LGPL license (the "GNU LIBRARY GENERAL PUBLIC LICENSE"), in which case the
- * provisions of LGPL are applicable instead of those above. If you wish to
- * allow use of your version of this file only under the terms of the LGPL
- * License and not to allow others to use your version of this file under
- * the MPL, indicate your decision by deleting the provisions above and
- * replace them with the notice and other provisions required by the LGPL.
- * If you do not delete the provisions above, a recipient may use your version
- * of this file under either the MPL or the GNU LIBRARY GENERAL PUBLIC LICENSE.
- *
- * This library is free software; you can redistribute it and/or modify it
- * under the terms of the MPL as stated above or under the terms of the GNU
- * Library General Public License as published by the Free Software Foundation;
- * either version 2 of the License, or any later version.
- *
- * This library is distributed in the hope that it will be useful, but WITHOUT
- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
- * FOR A PARTICULAR PURPOSE. See the GNU Library general Public License for more
- * details.
- *
- * If you didn't download this code from the following link, you should check if
- * you aren't using an obsolete version:
- * http://www.lowagie.com/iText/
- */
-
-package com.lowagie.text.xml;
-
-import java.io.IOException;
-import java.lang.reflect.Field;
-import java.util.ArrayList;
-import java.util.Collections;
-import java.util.EmptyStackException;
-import java.util.HashMap;
-import java.util.Iterator;
-import java.util.Properties;
-import java.util.Stack;
-
-import org.xml.sax.Attributes;
-import org.xml.sax.helpers.DefaultHandler;
-
-import com.lowagie.text.Anchor;
-import com.lowagie.text.Annotation;
-import com.lowagie.text.BadElementException;
-import com.lowagie.text.Cell;
-import com.lowagie.text.Chapter;
-import com.lowagie.text.Chunk;
-import com.lowagie.text.DocListener;
-import com.lowagie.text.DocumentException;
-import com.lowagie.text.Element;
-import com.lowagie.text.ElementTags;
-import com.lowagie.text.Entities;
-import com.lowagie.text.ExceptionConverter;
-import com.lowagie.text.Font;
-import com.lowagie.text.Graphic;
-import com.lowagie.text.Image;
-import com.lowagie.text.List;
-import com.lowagie.text.ListItem;
-import com.lowagie.text.Meta;
-import com.lowagie.text.PageSize;
-import com.lowagie.text.Paragraph;
-import com.lowagie.text.Phrase;
-import com.lowagie.text.Rectangle;
-import com.lowagie.text.Row;
-import com.lowagie.text.Section;
-import com.lowagie.text.Table;
-import com.lowagie.text.TextElementArray;
-import com.lowagie.text.html.HtmlTagMap;
-import com.lowagie.text.pdf.BaseFont;
-
-/**
- * This class is a Handler that controls the iText XML to PDF conversion.
- * Subclass it, if you want to change the way iText translates XML to PDF.
- */
-
-public class SAXiTextHandler extends DefaultHandler {
-
- /** This is the resulting document. */
- protected DocListener document;
-
- /**
- * This is a <CODE>Stack</CODE> of objects, waiting to be added to the
- * document.
- */
- protected Stack stack;
-
- /** Counts the number of chapters in this document. */
- protected int chapters = 0;
-
- /** This is the current chunk to which characters can be added. */
- protected Chunk currentChunk = null;
-
- /** This is the current chunk to which characters can be added. */
- protected boolean ignore = false;
-
- /**
- * This is a flag that can be set, if you want to open and close the
- * Document-object yourself.
- */
- protected boolean controlOpenClose = true;
-
- /** current margin of a page. */
- float topMargin = 36;
-
- /** current margin of a page. */
- float rightMargin = 36;
-
- /** current margin of a page. */
- float leftMargin = 36;
-
- /** current margin of a page. */
- float bottomMargin = 36;
-
- /**
- * @param document
- * @throws IOException
- */
- public SAXiTextHandler(DocListener document)
- throws IOException {
- super();
- this.document = document;
- stack = new Stack();
- }
-
- protected HashMap myTags;
-
- /**
- * @param document
- * @param myTags
- * @throws IOException
- */
- public SAXiTextHandler(DocListener document, HtmlTagMap myTags)
- throws IOException {
- this(document);
- this.myTags = myTags;
- }
-
- /**
- * @param document
- * @param myTags
- * @param bf
- * @throws IOException
- */
- public SAXiTextHandler(DocListener document, HtmlTagMap myTags,
- BaseFont bf) throws IOException {
- this(document, myTags);
- this.bf = bf;
- }
-
- /**
- * @param document
- * @param myTags
- * @throws IOException
- */
- public SAXiTextHandler(DocListener document, HashMap myTags)
- throws IOException {
- this(document);
- this.myTags = myTags;
- }
-
- /**
- * Sets the parameter that allows you to enable/disable the control over the
- * Document.open() and Document.close() method.
- * <P>
- * If you set this parameter to true (= default), the parser will open the
- * Document object when the start-root-tag is encounterd and close it when
- * the end-root-tag is met. If you set it to false, you have to open and
- * close the Document object yourself.
- *
- * @param controlOpenClose
- * set this to false if you plan to open/close the Document
- * yourself
- */
-
- public void setControlOpenClose(boolean controlOpenClose) {
- this.controlOpenClose = controlOpenClose;
- }
-
- /**
- * This method gets called when a start tag is encountered.
- *
- * @param uri
- * the Uniform Resource Identifier
- * @param lname
- * the local name (without prefix), or the empty string if
- * Namespace processing is not being performed.
- * @param name
- * the name of the tag that is encountered
- * @param attrs
- * the list of attributes
- */
-
- public void startElement(String uri, String lname, String name,
- Attributes attrs) {
-
- Properties attributes = new Properties();
- if (attrs != null) {
- for (int i = 0; i < attrs.getLength(); i++) {
- String attribute = attrs.getQName(i);
- attributes.setProperty(attribute, attrs.getValue(i));
- }
- }
- handleStartingTags(name, attributes);
- }
-
- /**
- * This method deals with the starting tags.
- *
- * @param name
- * the name of the tag
- * @param attributes
- * the list of attributes
- */
-
- public void handleStartingTags(String name, Properties attributes) {
- // System.err.println("Start: " + name);
- if (ignore || ElementTags.IGNORE.equals(name)) {
- ignore = true;
- return;
- }
-
- // maybe there is some meaningful data that wasn't between tags
- if (currentChunk != null) {
- TextElementArray current;
- try {
- current = (TextElementArray) stack.pop();
- } catch (EmptyStackException ese) {
- if (bf == null) {
- current = new Paragraph("", new Font());
- }
- else {
- current = new Paragraph("", new Font(this.bf));
- }
- }
- current.add(currentChunk);
- stack.push(current);
- currentChunk = null;
- }
-
- // chunks
- if (Chunk.isTag(name)) {
- currentChunk = new Chunk(attributes);
- if (bf != null) {
- currentChunk.setFont(new Font(this.bf));
- }
- return;
- }
-
- // symbols
- if (Entities.isTag(name)) {
- Font f = new Font();
- if (currentChunk != null) {
- handleEndingTags(ElementTags.CHUNK);
- f = currentChunk.font();
- }
- currentChunk = Entities.get(attributes.getProperty(ElementTags.ID),
- f);
- return;
- }
-
- // phrases
- if (Phrase.isTag(name)) {
- stack.push(new Phrase(attributes));
- return;
- }
-
- // anchors
- if (Anchor.isTag(name)) {
- stack.push(new Anchor(attributes));
- return;
- }
-
- // paragraphs and titles
- if (Paragraph.isTag(name) || Section.isTitle(name)) {
- stack.push(new Paragraph(attributes));
- return;
- }
-
- // lists
- if (List.isTag(name)) {
- stack.push(new List(attributes));
- return;
- }
-
- // listitems
- if (ListItem.isTag(name)) {
- stack.push(new ListItem(attributes));
- return;
- }
-
- // cells
- if (Cell.isTag(name)) {
- stack.push(new Cell(attributes));
- return;
- }
-
- // tables
- if (Table.isTag(name)) {
- Table table = new Table(attributes);
- float widths[] = table.getProportionalWidths();
- for (int i = 0; i < widths.length; i++) {
- if (widths[i] == 0) {
- widths[i] = 100.0f / (float) widths.length;
- }
- }
- try {
- table.setWidths(widths);
- } catch (BadElementException bee) {
- // this shouldn't happen
- throw new ExceptionConverter(bee);
- }
- stack.push(table);
- return;
- }
-
- // sections
- if (Section.isTag(name)) {
- Element previous = (Element) stack.pop();
- Section section;
- try {
- section = ((Section) previous).addSection(attributes);
- } catch (ClassCastException cce) {
- throw new ExceptionConverter(cce);
- }
- stack.push(previous);
- stack.push(section);
- return;
- }
-
- // chapters
- if (Chapter.isTag(name)) {
- String value; // changed after a suggestion by Serge S. Vasiljev
- if ((value = (String) attributes.remove(ElementTags.NUMBER)) != null) {
- chapters = Integer.parseInt(value);
- } else {
- chapters++;
- }
- Chapter chapter = new Chapter(attributes, chapters);
- stack.push(chapter);
- return;
- }
-
- // images
- if (Image.isTag(name)) {
- try {
- Image img = Image.getInstance(attributes);
- Object current;
- try {
- // if there is an element on the stack...
- current = stack.pop();
- // ...and it's a Chapter or a Section, the Image can be
- // added directly
- if (current instanceof Chapter
- || current instanceof Section
- || current instanceof Cell) {
- ((TextElementArray) current).add(img);
- stack.push(current);
- return;
- }
- // ...if not, the Image is wrapped in a Chunk before it's
- // added
- else {
- Stack newStack = new Stack();
- try {
- while (!(current instanceof Chapter
- || current instanceof Section || current instanceof Cell)) {
- newStack.push(current);
- if (current instanceof Anchor) {
- img.setAnnotation(new Annotation(0, 0, 0,
- 0, ((Anchor) current).reference()));
- }
- current = stack.pop();
- }
- ((TextElementArray) current).add(img);
- stack.push(current);
- } catch (EmptyStackException ese) {
- document.add(img);
- }
- while (!newStack.empty()) {
- stack.push(newStack.pop());
- }
- return;
- }
- } catch (EmptyStackException ese) {
- // if there is no element on the stack, the Image is added
- // to the document
- try {
- document.add(img);
- } catch (DocumentException de) {
- throw new ExceptionConverter(de);
- }
- return;
- }
- } catch (Exception e) {
- throw new ExceptionConverter(e);
- }
- }
-
- // annotations
- if (Annotation.isTag(name)) {
- Annotation annotation = new Annotation(attributes);
- TextElementArray current;
- try {
- try {
- current = (TextElementArray) stack.pop();
- try {
- current.add(annotation);
- } catch (Exception e) {
- document.add(annotation);
- }
- stack.push(current);
- } catch (EmptyStackException ese) {
- document.add(annotation);
- }
- return;
- } catch (DocumentException de) {
- throw new ExceptionConverter(de);
- }
- }
-
- // newlines
- if (isNewline(name)) {
- TextElementArray current;
- try {
- current = (TextElementArray) stack.pop();
- current.add(Chunk.NEWLINE);
- stack.push(current);
- } catch (EmptyStackException ese) {
- if (currentChunk == null) {
- try {
- document.add(Chunk.NEWLINE);
- } catch (DocumentException de) {
- throw new ExceptionConverter(de);
- }
- } else {
- currentChunk.append("\n");
- }
- }
- return;
- }
-
- // newpage
- if (isNewpage(name)) {
- TextElementArray current;
- try {
- current = (TextElementArray) stack.pop();
- Chunk newPage = new Chunk("");
- newPage.setNewPage();
- if (bf != null) {
- newPage.setFont(new Font(this.bf));
- }
- current.add(newPage);
- stack.push(current);
- } catch (EmptyStackException ese) {
- try {
- document.newPage();
- } catch (DocumentException de) {
- throw new ExceptionConverter(de);
- }
- }
- return;
- }
-
- // newpage
- if (ElementTags.HORIZONTALRULE.equals(name)) {
- TextElementArray current;
- Graphic hr = new Graphic();
- hr.setHorizontalLine(1.0f, 100.0f);
- try {
- current = (TextElementArray) stack.pop();
- current.add(hr);
- stack.push(current);
- } catch (EmptyStackException ese) {
- try {
- document.add(hr);
- } catch (DocumentException de) {
- throw new ExceptionConverter(de);
- }
- }
- return;
- }
-
- // documentroot
- if (isDocumentRoot(name)) {
- String key;
- String value;
- // pagesize and orientation specific code suggested by Samuel Gabriel
- // Updated by Ricardo Coutinho. Only use if set in html!
- Rectangle pageSize = null;
- String orientation = null;
- for (Iterator i = attributes.keySet().iterator(); i.hasNext();) {
- key = (String) i.next();
- value = attributes.getProperty(key);
- try {
- // margin specific code suggested by Reza Nasiri
- if (ElementTags.LEFT.equalsIgnoreCase(key))
- leftMargin = Float.valueOf(value + "f").floatValue();
- if (ElementTags.RIGHT.equalsIgnoreCase(key))
- rightMargin = Float.valueOf(value + "f").floatValue();
- if (ElementTags.TOP.equalsIgnoreCase(key))
- topMargin = Float.valueOf(value + "f").floatValue();
- if (ElementTags.BOTTOM.equalsIgnoreCase(key))
- bottomMargin = Float.valueOf(value + "f").floatValue();
- } catch (Exception ex) {
- throw new ExceptionConverter(ex);
- }
- if (ElementTags.PAGE_SIZE.equals(key)) {
- try {
- String pageSizeName = value;
- Field pageSizeField = PageSize.class
- .getField(pageSizeName);
- pageSize = (Rectangle) pageSizeField.get(null);
- } catch (Exception ex) {
- throw new ExceptionConverter(ex);
- }
- } else if (ElementTags.ORIENTATION.equals(key)) {
- try {
- String pageSizeName = value;
- if ("landscape".equals(value)) {
- orientation = "landscape";
- }
- } catch (Exception ex) {
- throw new ExceptionConverter(ex);
- }
- } else {
- try {
- document.add(new Meta(key, value));
- } catch (DocumentException de) {
- throw new ExceptionConverter(de);
- }
- }
- }
- if(pageSize != null) {
- if ("landscape".equals(orientation)) {
- pageSize = pageSize.rotate();
- }
- document.setPageSize(pageSize);
- }
- document.setMargins(leftMargin, rightMargin, topMargin,
- bottomMargin);
-
- if (controlOpenClose)
- document.open();
- }
-
- }
-
- /**
- * This method gets called when ignorable white space encountered.
- *
- * @param ch
- * an array of characters
- * @param start
- * the start position in the array
- * @param length
- * the number of characters to read from the array
- */
-
- public void ignorableWhitespace(char[] ch, int start, int length) {
- // do nothing: we handle white space ourselves in the characters method
- }
-
- /**
- * This method gets called when characters are encountered.
- *
- * @param ch
- * an array of characters
- * @param start
- * the start position in the array
- * @param length
- * the number of characters to read from the array
- */
-
- public void characters(char[] ch, int start, int length) {
-
- if (ignore)
- return;
-
- String content = new String(ch, start, length);
- // System.err.println("'" + content + "'");
-
- if (content.trim().length() == 0) {
- return;
- }
-
- StringBuffer buf = new StringBuffer();
- int len = content.length();
- char character;
- boolean newline = false;
- for (int i = 0; i < len; i++) {
- switch (character = content.charAt(i)) {
- case ' ':
- if (!newline) {
- buf.append(character);
- }
- break;
- case '\n':
- if (i > 0) {
- newline = true;
- buf.append(' ');
- }
- break;
- case '\r':
- break;
- case '\t':
- break;
- default:
- newline = false;
- buf.append(character);
- }
- }
- if (currentChunk == null) {
- if (bf == null) {
- currentChunk = new Chunk(buf.toString());
- }
- else {
- currentChunk = new Chunk(buf.toString(), new Font(this.bf));
- }
- } else {
- currentChunk.append(buf.toString());
- }
- }
-
- private BaseFont bf = null;
-
- /**
- * Sets the font that has to be used.
- * @param bf
- */
- public void setBaseFont(BaseFont bf) {
- this.bf = bf;
- }
-
- /**
- * This method gets called when an end tag is encountered.
- *
- * @param uri
- * the Uniform Resource Identifier
- * @param lname
- * the local name (without prefix), or the empty string if
- * Namespace processing is not being performed.
- * @param name
- * the name of the tag that ends
- */
-
- public void endElement(String uri, String lname, String name) {
- handleEndingTags(name);
- }
-
- /**
- * This method deals with the starting tags.
- *
- * @param name
- * the name of the tag
- */
-
- public void handleEndingTags(String name) {
-
- // System.err.println("Stop: " + name);
-
- if (ElementTags.IGNORE.equals(name)) {
- ignore = false;
- return;
- }
- if (ignore)
- return;
- // tags that don't have any content
- if (isNewpage(name) || Annotation.isTag(name) || Image.isTag(name)
- || isNewline(name)) {
- return;
- }
-
- try {
- // titles of sections and chapters
- if (Section.isTitle(name)) {
- Paragraph current = (Paragraph) stack.pop();
- if (currentChunk != null) {
- current.add(currentChunk);
- currentChunk = null;
- }
- Section previous = (Section) stack.pop();
- previous.setTitle(current);
- stack.push(previous);
- return;
- }
-
- // all other endtags
- if (currentChunk != null) {
- TextElementArray current;
- try {
- current = (TextElementArray) stack.pop();
- } catch (EmptyStackException ese) {
- current = new Paragraph();
- }
- current.add(currentChunk);
- stack.push(current);
- currentChunk = null;
- }
-
- // chunks
- if (Chunk.isTag(name)) {
- return;
- }
-
- // phrases, anchors, lists, tables
- if (Phrase.isTag(name) || Anchor.isTag(name) || List.isTag(name)
- || Paragraph.isTag(name)) {
- Element current = (Element) stack.pop();
- try {
- TextElementArray previous = (TextElementArray) stack.pop();
- previous.add(current);
- stack.push(previous);
- } catch (EmptyStackException ese) {
- document.add(current);
- }
- return;
- }
-
- // listitems
- if (ListItem.isTag(name)) {
- ListItem listItem = (ListItem) stack.pop();
- List list = (List) stack.pop();
- list.add(listItem);
- stack.push(list);
- }
-
- // tables
- if (Table.isTag(name)) {
- Table table = (Table) stack.pop();
- try {
- TextElementArray previous = (TextElementArray) stack.pop();
- previous.add(table);
- stack.push(previous);
- } catch (EmptyStackException ese) {
- document.add(table);
- }
- return;
- }
-
- // rows
- if (Row.isTag(name)) {
- ArrayList cells = new ArrayList();
- int columns = 0;
- Table table;
- Cell cell;
- while (true) {
- Element element = (Element) stack.pop();
- if (element.type() == Element.CELL) {
- cell = (Cell) element;
- columns += cell.colspan();
- cells.add(cell);
- } else {
- table = (Table) element;
- break;
- }
- }
- if (table.columns() < columns) {
- table.addColumns(columns - table.columns());
- }
- Collections.reverse(cells);
- String width;
- float[] cellWidths = new float[columns];
- boolean[] cellNulls = new boolean[columns];
- for (int i = 0; i < columns; i++) {
- cellWidths[i] = 0;
- cellNulls[i] = true;
- }
- float total = 0;
- int j = 0;
- for (Iterator i = cells.iterator(); i.hasNext();) {
- cell = (Cell) i.next();
- if ((width = cell.cellWidth()) == null) {
- if (cell.colspan() == 1 && cellWidths[j] == 0) {
- try {
- cellWidths[j] = 100f / columns;
- total += cellWidths[j];
- } catch (Exception e) {
- // empty on purpose
- }
- } else if (cell.colspan() == 1) {
- cellNulls[j] = false;
- }
- } else if (cell.colspan() == 1 && width.endsWith("%")) {
- try {
- cellWidths[j] = Float.valueOf(
- width.substring(0, width.length() - 1)
- + "f").floatValue();
- total += cellWidths[j];
- } catch (Exception e) {
- // empty on purpose
- }
- }
- j += cell.colspan();
- table.addCell(cell);
- }
- float widths[] = table.getProportionalWidths();
- if (widths.length == columns) {
- float left = 0.0f;
- for (int i = 0; i < columns; i++) {
- if (cellNulls[i] && widths[i] != 0) {
- left += widths[i];
- cellWidths[i] = widths[i];
- }
- }
- if (100.0 >= total) {
- for (int i = 0; i < widths.length; i++) {
- if (cellWidths[i] == 0 && widths[i] != 0) {
- cellWidths[i] = (widths[i] / left)
- * (100.0f - total);
- }
- }
- }
- table.setWidths(cellWidths);
- }
- stack.push(table);
- }
-
- // cells
- if (Cell.isTag(name)) {
- return;
- }
-
- // sections
- if (Section.isTag(name)) {
- stack.pop();
- return;
- }
-
- // chapters
- if (Chapter.isTag(name)) {
- document.add((Element) stack.pop());
- return;
- }
-
- // the documentroot
- if (isDocumentRoot(name)) {
- try {
- while (true) {
- Element element = (Element) stack.pop();
- try {
- TextElementArray previous = (TextElementArray) stack
- .pop();
- previous.add(element);
- stack.push(previous);
- } catch (EmptyStackException es) {
- document.add(element);
- }
- }
- } catch (EmptyStackException ese) {
- // empty on purpose
- }
- if (controlOpenClose)
- document.close();
- return;
- }
- } catch (DocumentException de) {
- throw new ExceptionConverter(de);
- }
- }
-
- /**
- * Checks if a certain tag corresponds with the newpage-tag.
- *
- * @param tag
- * a presumed tagname
- * @return <CODE>true</CODE> or <CODE>false</CODE>
- */
-
- private boolean isNewpage(String tag) {
- return ElementTags.NEWPAGE.equals(tag);
- }
-
- /**
- * Checks if a certain tag corresponds with the newpage-tag.
- *
- * @param tag
- * a presumed tagname
- * @return <CODE>true</CODE> or <CODE>false</CODE>
- */
-
- private boolean isNewline(String tag) {
- return ElementTags.NEWLINE.equals(tag);
- }
-
- /**
- * Checks if a certain tag corresponds with the roottag.
- *
- * @param tag
- * a presumed tagname
- * @return <CODE>true</CODE> if <VAR>tag </VAR> equals <CODE>itext
- * </CODE>,<CODE>false</CODE> otherwise.
- */
-
- protected boolean isDocumentRoot(String tag) {
- return ElementTags.ITEXT.equals(tag);
- }
-}
\ No newline at end of file |