Java tutorial
/** * Copyright (C) 2011-2015 The XDocReport Team <xdocreport@googlegroups.com> * * All rights reserved. * * Permission is hereby granted, free of charge, to any person obtaining * a copy of this software and associated documentation files (the * "Software"), to deal in the Software without restriction, including * without limitation the rights to use, copy, modify, merge, publish, * distribute, sublicense, and/or sell copies of the Software, and to * permit persons to whom the Software is furnished to do so, subject to * the following conditions: * * The above copyright notice and this permission notice shall be * included in all copies or substantial portions of the Software. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */ package org.odftoolkit.odfdom.converter.pdf.internal.stylable; import java.util.ArrayList; import java.util.Map; import org.odftoolkit.odfdom.converter.pdf.internal.styles.Style; import org.odftoolkit.odfdom.converter.pdf.internal.styles.StyleLineHeight; import org.odftoolkit.odfdom.converter.pdf.internal.styles.StyleListProperties; import org.odftoolkit.odfdom.converter.pdf.internal.styles.StyleNumFormat; import org.odftoolkit.odfdom.converter.pdf.internal.styles.StyleParagraphProperties; import org.odftoolkit.odfdom.converter.pdf.internal.styles.StyleTextProperties; import com.lowagie.text.Chunk; import com.lowagie.text.Element; import com.lowagie.text.Font; import com.lowagie.text.Image; import com.lowagie.text.List; import com.lowagie.text.Phrase; import com.lowagie.text.factories.RomanAlphabetFactory; import com.lowagie.text.factories.RomanNumberFactory; /** * fixes for pdf conversion by Leszek Piotrowicz <leszekp@safe-mail.net> */ public class StylableList extends List implements IStylableContainer { private IStylableContainer parent; private int listLevel; private boolean romanNumbered = false; private Style lastStyleApplied = null; public StylableList(StylableDocument ownerDocument, IStylableContainer parent, int listLevel) { this.parent = parent; this.listLevel = listLevel; // set defaults super.setNumbered(false); super.setLettered(false); super.setLowercase(false); super.setPreSymbol(""); super.setPostSymbol(""); super.setListSymbol(""); super.setAutoindent(false); } public int getIndex() { return first + list.size(); } public void setFirst(int first) { this.first = first; } public void addElement(Element element) { if (element instanceof StylableListItem) { StylableListItem li = (StylableListItem) element; boolean first = true; for (Element e : li.getElements()) { addElement(e, first); first = false; } } } @SuppressWarnings("unchecked") private void addElement(Element element, boolean addLabel) { if (element instanceof Chunk) { // may it happen? Chunk ch = (Chunk) element; StylableParagraph p = new StylableParagraph(null, null); p.setFont(ch.getFont()); p.addElement(ch); element = p.getElement(); } if (element instanceof Phrase) { Phrase p = (Phrase) element; StylableListItem li = new StylableListItem(p); // determine font, it may be set explicitly or use paragraph font Font symbolFont = symbol.getFont(); if (symbolFont.isStandardFont()) { ArrayList<Chunk> chunks = p.getChunks(); for (Chunk chunk : chunks) { // use first specified font if (!chunk.getFont().isStandardFont()) { symbolFont = chunk.getFont(); break; } } if (symbolFont.isStandardFont()) { // use paragraph font symbolFont = p.getFont(); } } // determine line height float lineHeight = StylableParagraph.DEFAULT_LINE_HEIGHT; boolean lineHeightProportional = true; if (element instanceof IStylableElement) { IStylableElement stylableElement = (IStylableElement) element; Style style = stylableElement.getLastStyleApplied(); if (style != null) { StyleParagraphProperties paragraphProperties = style.getParagraphProperties(); StyleLineHeight lineHeightObj = paragraphProperties.getLineHeight(); if (lineHeightObj != null && lineHeightObj.getLineHeight() != null) { lineHeight = lineHeightObj.getLineHeight(); lineHeightProportional = lineHeightObj.isLineHeightProportional(); } } } if (addLabel) { if (numbered || lettered || romanNumbered) { StringBuilder sbuf = new StringBuilder(preSymbol); int index = first + list.size(); if (lettered) { sbuf.append(RomanAlphabetFactory.getString(index, lowercase)); } else if (romanNumbered) { sbuf.append(RomanNumberFactory.getString(index, lowercase)); } else { sbuf.append(index); } sbuf.append(postSymbol); li.setListSymbol(sbuf.toString(), symbolFont, lineHeight, lineHeightProportional); } else { li.setListSymbol(symbol.getContent(), symbolFont, lineHeight, lineHeightProportional); } } else { li.setListSymbol("", symbolFont, lineHeight, lineHeightProportional); } li.setIndentationLeft(symbolIndent); li.setIndentationRight(0.0f); list.add(li); } else if (element instanceof List) { List l = (List) element; // open office specifies absolute list indentation // but iText computes indentation relative to parent list // so we have to set difference l.setIndentationLeft(l.getIndentationLeft() - this.getIndentationLeft()); first--; list.add(l); } } public static StyleListProperties getListProperties(Map<Integer, StyleListProperties> listPropertiesMap, int level) { StyleListProperties listProperties = null; for (int i = level; i >= 0 && listProperties == null; i--) { // find style for current or nearest lower list level listProperties = listPropertiesMap.get(i); } return listProperties; } public void applyStyles(Style style) { this.lastStyleApplied = style; Map<Integer, StyleListProperties> listPropertiesMap = style.getListPropertiesMap(); if (listPropertiesMap != null) { StyleListProperties listProperties = getListProperties(listPropertiesMap, listLevel); if (listProperties != null) { String bulletChar = listProperties.getBulletChar(); if (bulletChar != null) { // list item label is a char Chunk symbol = new Chunk(bulletChar); StyleTextProperties textProperties = listProperties.getTextProperties(); if (textProperties != null) { Font font = textProperties.getFont(); if (font != null) { symbol.setFont(font); } } super.setListSymbol(symbol); } Image image = listProperties.getImage(); if (image != null) { // list item label is an image Float width = listProperties.getWidth(); if (width != null) { image.scaleAbsoluteWidth(width); } Float height = listProperties.getHeight(); if (height != null) { image.scaleAbsoluteHeight(height); } super.setListSymbol(new Chunk(image, 0.0f, 0.0f)); } if (bulletChar == null && image == null) { // list item label is a number Chunk symbol = new Chunk(""); StyleTextProperties textProperties = listProperties.getTextProperties(); if (textProperties != null) { Font font = textProperties.getFont(); if (font != null) { symbol.setFont(font); } } Integer startValue = listProperties.getStartValue(); if (startValue != null) { super.setFirst(startValue); } StyleNumFormat numFormat = listProperties.getNumFormat(); if (numFormat != null) { String numPrefix = listProperties.getNumPrefix(); if (numPrefix != null) { super.setPreSymbol(numPrefix); symbol = new Chunk(numPrefix, symbol.getFont()); } String numSuffix = listProperties.getNumSuffix(); if (numSuffix != null) { super.setPostSymbol(numSuffix); symbol.append(numSuffix); } super.setNumbered(true); super.setLettered(numFormat.isAlphabetical()); this.romanNumbered = numFormat.isRoman(); super.setLowercase(numFormat.isLowercase()); } super.setListSymbol(symbol); } // set indentation, it is specified in different way by Open Office and MsWord Float marginLeft = listProperties.getMarginLeft(); Float textIndent = listProperties.getTextIndent(); Float spaceBefore = listProperties.getSpaceBefore(); Float minLabelWidth = listProperties.getMinLabelWidth(); if (marginLeft != null && textIndent != null) { // ODT generated by Open Office super.setIndentationLeft(Math.max(marginLeft + textIndent, 0.0f)); super.setSymbolIndent(Math.max(-textIndent, 0.0f)); } else if (spaceBefore != null && minLabelWidth != null) { // ODT generated by MsWord super.setIndentationLeft(Math.max(spaceBefore, 0.0f)); super.setSymbolIndent(Math.max(minLabelWidth, 0.0f)); } } } } public Style getLastStyleApplied() { return lastStyleApplied; } public IStylableContainer getParent() { return parent; } public Element getElement() { return this; } }