6f46ed3177
git-svn-id: svn://svn.code.sf.net/p/writer2latex/code/trunk@256 f0f2a975-2e09-46c8-9428-3b39399b9f3c
455 lines
No EOL
18 KiB
Java
455 lines
No EOL
18 KiB
Java
/************************************************************************
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*
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* DrawConverter.java
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License version 2.1, as published by the Free Software Foundation.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
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* MA 02111-1307 USA
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*
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* Copyright: 2002-2014 by Henrik Just
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*
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* All Rights Reserved.
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*
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* Version 1.4 (2014-09-05)
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*
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*/
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package writer2latex.latex;
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import java.util.LinkedList;
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import java.util.Stack;
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import org.w3c.dom.Document;
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import org.w3c.dom.Element;
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import writer2latex.base.BinaryGraphicsDocument;
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import writer2latex.latex.util.BeforeAfter;
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import writer2latex.latex.util.Context;
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import writer2latex.office.EmbeddedObject;
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import writer2latex.office.EmbeddedXMLObject;
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import writer2latex.office.MIMETypes;
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import writer2latex.office.OfficeReader;
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import writer2latex.office.XMLString;
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import writer2latex.util.CSVList;
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import writer2latex.util.Calc;
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import writer2latex.util.Misc;
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/**
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* <p>This class handles draw elements.</p>
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*/
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public class DrawConverter extends ConverterHelper {
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private boolean bNeedGraphicx = false;
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// Keep track of floating frames (images, text boxes...)
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private Stack<LinkedList<Element>> floatingFramesStack = new Stack<LinkedList<Element>>();
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private Element getFrame(Element onode) {
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if (ofr.isOpenDocument()) return (Element) onode.getParentNode();
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else return onode;
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}
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public DrawConverter(OfficeReader ofr, LaTeXConfig config, ConverterPalette palette) {
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super(ofr,config,palette);
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floatingFramesStack.push(new LinkedList<Element>());
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}
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public void appendDeclarations(LaTeXDocumentPortion pack, LaTeXDocumentPortion decl) {
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if (bNeedGraphicx) {
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pack.append("\\usepackage");
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if (config.getBackend()==LaTeXConfig.PDFTEX) pack.append("[pdftex]");
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//else if (config.getBackend()==LaTeXConfig.XETEX) pack.append("[xetex]");
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else if (config.getBackend()==LaTeXConfig.DVIPS) pack.append("[dvips]");
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pack.append("{graphicx}").nl();
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}
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}
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public void handleCaption(Element node, LaTeXDocumentPortion ldp, Context oc) {
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// Floating frames should be positioned *above* the label, hence
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// we use a separate ldp for the paragraphs and add this later
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LaTeXDocumentPortion capLdp = new LaTeXDocumentPortion(true);
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// Convert the caption
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if (oc.isInFigureFloat()) { // float
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capLdp.append("\\caption");
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palette.getCaptionCv().handleCaptionBody(node,capLdp,oc,false);
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}
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else { // nonfloat
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capLdp.append("\\captionof{figure}");
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palette.getCaptionCv().handleCaptionBody(node,capLdp,oc,true);
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}
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flushFloatingFrames(ldp,oc);
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ldp.append(capLdp);
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}
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// Process the first child of a draw:frame
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public void handleDrawElement(Element node, LaTeXDocumentPortion ldp, Context oc) {
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// node must be an element in the draw namespace
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String sName = node.getTagName();
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if (sName.equals(XMLString.DRAW_OBJECT)) {
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handleDrawObject(node,ldp,oc);
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}
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else if (sName.equals(XMLString.DRAW_OBJECT_OLE)) {
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handleDrawObject(node,ldp,oc);
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}
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else if ((!oc.isInHeaderFooter()) && sName.equals(XMLString.DRAW_IMAGE)) {
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handleDrawImage(node,ldp,oc);
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}
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else if ((!oc.isInHeaderFooter()) && sName.equals(XMLString.DRAW_TEXT_BOX)) {
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handleDrawTextBox(node,ldp,oc);
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}
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else if (sName.equals(XMLString.DRAW_A)) {
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// we handle this like text:a
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palette.getFieldCv().handleAnchor(node,ldp,oc);
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}
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else if (sName.equals(XMLString.DRAW_FRAME)) {
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if (!palette.getMathCv().handleTexMathsEquation(node,ldp)) {
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// OpenDocument: Get the actual draw element in the frame
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handleDrawElement(Misc.getFirstChildElement(node),ldp,oc);
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}
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}
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else if (sName.equals(XMLString.DRAW_G)) {
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if (!palette.getMathCv().handleTexMathsEquation(node,ldp)) {
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// Shapes are currently not supported
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ldp.append("[Warning: Draw object ignored]");
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}
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}
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else {
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// Other drawing objects are currently not supported
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ldp.append("[Warning: Draw object ignored]");
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}
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}
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//-----------------------------------------------------------------
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// handle draw:object elements (OOo objects such as Chart, Math,...)
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private void handleDrawObject(Element node, LaTeXDocumentPortion ldp, Context oc) {
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String sHref = Misc.getAttribute(node,XMLString.XLINK_HREF);
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if (sHref!=null) { // Embedded object in package or linked object
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if (ofr.isInPackage(sHref)) { // Embedded object in package
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if (sHref.startsWith("#")) { sHref=sHref.substring(1); }
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if (sHref.startsWith("./")) { sHref=sHref.substring(2); }
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EmbeddedObject object = palette.getEmbeddedObject(sHref);
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if (object!=null) {
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if (MIMETypes.MATH.equals(object.getType()) || MIMETypes.ODF.equals(object.getType())) { // Formula!
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try {
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Document formuladoc = ((EmbeddedXMLObject) object).getContentDOM();
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Element formula = Misc.getChildByTagName(formuladoc,XMLString.MATH); // Since OOo3.2
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if (formula==null) {
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formula = Misc.getChildByTagName(formuladoc,XMLString.MATH_MATH);
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}
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String sLaTeX = palette.getMathCv().convert(formula);
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if (!" ".equals(sLaTeX)) { // ignore empty formulas
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ldp.append(" $")
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.append(sLaTeX)
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.append("$");
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if (Character.isLetterOrDigit(OfficeReader.getNextChar(node))) { ldp.append(" "); }
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}
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}
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catch (org.xml.sax.SAXException e) {
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e.printStackTrace();
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}
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catch (java.io.IOException e) {
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e.printStackTrace();
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}
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}
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else { // unsupported object
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boolean bIgnore = true;
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if (ofr.isOpenDocument()) { // look for replacement image
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Element replacementImage = Misc.getChildByTagName(getFrame(node),XMLString.DRAW_IMAGE);
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if (replacementImage!=null) {
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handleDrawImage(replacementImage,ldp,oc);
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bIgnore = false;
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}
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}
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if (bIgnore) {
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ldp.append("[Warning: object ignored]");
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}
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}
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}
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}
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}
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else { // flat xml, object is contained in node
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Element formula = Misc.getChildByTagName(node,XMLString.MATH); // Since OOo 3.2
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if (formula==null) {
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formula = Misc.getChildByTagName(node,XMLString.MATH_MATH);
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}
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if (formula!=null) {
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ldp.append(" $")
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.append(palette.getMathCv().convert(formula))
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.append("$");
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if (Character.isLetterOrDigit(OfficeReader.getNextChar(node))) { ldp.append(" "); }
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}
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else { // unsupported object
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boolean bIgnore = true;
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if (ofr.isOpenDocument()) { // look for replacement image
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Element replacementImage = Misc.getChildByTagName(getFrame(node),XMLString.DRAW_IMAGE);
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if (replacementImage!=null) {
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handleDrawImage(replacementImage,ldp,oc);
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bIgnore = false;
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}
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}
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if (bIgnore) {
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ldp.append("[Warning: object ignored]");
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}
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}
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}
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}
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//--------------------------------------------------------------------------
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// Create float environment
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private void applyFigureFloat(BeforeAfter ba, Context oc) {
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// todo: check context...
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if (config.floatFigures() && !oc.isInFrame() && !oc.isInTable()) {
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if (oc.isInMulticols()) {
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ba.add("\\begin{figure*}","\\end{figure*}\n");
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}
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else {
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ba.add("\\begin{figure}","\\end{figure}\n");
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}
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if (config.getFloatOptions().length()>0) {
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ba.add("["+config.getFloatOptions()+"]","");
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}
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ba.add("\n","");
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oc.setInFigureFloat(true);
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}
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if (!oc.isInFrame() && config.alignFrames()) {
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// Avoid nesting center environment
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if (config.floatFigures()) {
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// Inside floats we don't want the extra glue added by the center environment
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ba.add("\\centering\n","\n");
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}
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else {
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// Outside a float we certainly want it
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ba.add("\\begin{center}\n","\n\\end{center}\n");
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}
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}
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}
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//--------------------------------------------------------------------------
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// Handle draw:image elements
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private void handleDrawImage(Element node, LaTeXDocumentPortion ldp, Context oc) {
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// Include graphics if allowed by the configuration
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switch (config.imageContent()) {
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case LaTeXConfig.IGNORE:
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// Ignore graphics silently
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return;
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case LaTeXConfig.WARNING:
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System.err.println("Warning: Images are not allowed");
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return;
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case LaTeXConfig.ERROR:
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ldp.append("% Error in document: An image was ignored");
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return;
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}
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Element frame = getFrame(node);
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String sName = frame.getAttribute(XMLString.DRAW_NAME);
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palette.getFieldCv().addTarget(sName,"|graphic",ldp);
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String sAnchor = frame.getAttribute(XMLString.TEXT_ANCHOR_TYPE);
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//if (oc.isInFrame() || "as-char".equals(sAnchor)) {
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if ("as-char".equals(sAnchor)) {
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handleDrawImageAsChar(node,ldp,oc);
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}
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else {
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floatingFramesStack.peek().add(node);
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}
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}
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private void handleDrawImageAsChar(Element node, LaTeXDocumentPortion ldp, Context oc) {
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ldp.append(" ");
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includeGraphics(node,ldp,oc);
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ldp.append(" ");
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}
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private void handleDrawImageFloat(Element node, LaTeXDocumentPortion ldp, Context oc) {
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Context ic = (Context) oc.clone();
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BeforeAfter ba = new BeforeAfter();
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applyFigureFloat(ba,ic);
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ldp.append(ba.getBefore());
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includeGraphics(node,ldp,ic);
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ldp.append(ba.getAfter());
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}
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private void includeGraphics(Element node, LaTeXDocumentPortion ldp, Context oc) {
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String sFileName = null;
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boolean bCommentOut = true;
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BinaryGraphicsDocument bgd = palette.getImageCv().getImage(node);
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if (bgd!=null) {
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if (!bgd.isLinked()) { // embedded image
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if (!bgd.isRecycled()) { palette.addDocument(bgd); }
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sFileName = bgd.getFileName();
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String sMIME = bgd.getMIMEType();
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bCommentOut = !(
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config.getBackend()==LaTeXConfig.UNSPECIFIED ||
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(config.getBackend()==LaTeXConfig.PDFTEX && MIMETypes.JPEG.equals(sMIME)) ||
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(config.getBackend()==LaTeXConfig.PDFTEX && MIMETypes.PNG.equals(sMIME)) ||
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(config.getBackend()==LaTeXConfig.PDFTEX && MIMETypes.PDF.equals(sMIME)) ||
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(config.getBackend()==LaTeXConfig.XETEX && MIMETypes.JPEG.equals(sMIME)) ||
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(config.getBackend()==LaTeXConfig.XETEX && MIMETypes.PNG.equals(sMIME)) ||
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(config.getBackend()==LaTeXConfig.XETEX && MIMETypes.PDF.equals(sMIME)) ||
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(config.getBackend()==LaTeXConfig.DVIPS && MIMETypes.EPS.equals(sMIME)));
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}
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else { // linked image
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sFileName = bgd.getFileName();
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String sExt = Misc.getFileExtension(sFileName).toLowerCase();
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// Accept only relative filenames and supported filetypes:
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bCommentOut = sFileName.indexOf(":")>-1 || !(
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config.getBackend()==LaTeXConfig.UNSPECIFIED ||
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(config.getBackend()==LaTeXConfig.PDFTEX && MIMETypes.JPEG_EXT.equals(sExt)) ||
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(config.getBackend()==LaTeXConfig.PDFTEX && MIMETypes.PNG_EXT.equals(sExt)) ||
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(config.getBackend()==LaTeXConfig.PDFTEX && MIMETypes.PDF_EXT.equals(sExt)) ||
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(config.getBackend()==LaTeXConfig.XETEX && MIMETypes.JPEG_EXT.equals(sExt)) ||
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(config.getBackend()==LaTeXConfig.XETEX && MIMETypes.PNG_EXT.equals(sExt)) ||
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(config.getBackend()==LaTeXConfig.XETEX && MIMETypes.PDF_EXT.equals(sExt)) ||
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(config.getBackend()==LaTeXConfig.DVIPS && MIMETypes.EPS_EXT.equals(sExt)));
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}
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}
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else {
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ldp.append("[Warning: Image not found]");
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return;
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}
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// Now for the actual inclusion:
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bNeedGraphicx = true;
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/* TODO: handle cropping and mirror:
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style:mirror can be none, vertical (lodret), horizontal (vandret),
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horizontal-on-odd, or
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horizontal-on-even (horizontal on odd or even pages).
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mirror is handled with scalebox, eg:
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%\\scalebox{-1}[1]{...}
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can check for even/odd page first!!
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fo:clip="rect(t,r,b,l) svarer til trim
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value can be auto - no clip!
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cropping is handled with clip and trim:
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\\includegraphics[clip,trim=l b r t]{...}
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note the different order from xsl-fo!
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*/
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if (bCommentOut) {
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ldp.append(" [Warning: Image ignored] ");
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ldp.append("% Unhandled or unsupported graphics:").nl().append("%");
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}
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ldp.append("\\includegraphics");
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CSVList options = new CSVList(',');
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if (!config.originalImageSize()) {
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Element frame = getFrame(node);
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String sWidth = Calc.truncateLength(frame.getAttribute(XMLString.SVG_WIDTH));
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String sHeight = Calc.truncateLength(frame.getAttribute(XMLString.SVG_HEIGHT));
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if (sWidth!=null) { options.addValue("width="+sWidth); }
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if (sHeight!=null) { options.addValue("height="+sHeight); }
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}
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if (config.getImageOptions().length()>0) {
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options.addValue(config.getImageOptions()); // TODO: New CSVList...
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}
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if (!options.isEmpty()) {
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ldp.append("[").append(options.toString()).append("]");
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}
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if (config.removeGraphicsExtension()) {
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sFileName = Misc.removeExtension(sFileName);
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}
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ldp.append("{").append(sFileName).append("}");
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if (bCommentOut) { ldp.nl(); }
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}
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//--------------------------------------------------------------------------
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// handle draw:text-box element
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private void handleDrawTextBox(Element node, LaTeXDocumentPortion ldp, Context oc) {
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Element frame = getFrame(node);
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String sName = frame.getAttribute(XMLString.DRAW_NAME);
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palette.getFieldCv().addTarget(sName,"|frame",ldp);
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String sAnchor = frame.getAttribute(XMLString.TEXT_ANCHOR_TYPE);
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//if (oc.isInFrame() || "as-char".equals(sAnchor)) {
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if ("as-char".equals(sAnchor)) {
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makeDrawTextBox(node, ldp, oc);
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}
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else {
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floatingFramesStack.peek().add(node);
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}
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}
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private void handleDrawTextBoxFloat(Element node, LaTeXDocumentPortion ldp, Context oc) {
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BeforeAfter ba = new BeforeAfter();
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Context ic = (Context) oc.clone();
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applyFigureFloat(ba,ic);
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ldp.append(ba.getBefore());
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makeDrawTextBox(node, ldp, ic);
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ldp.append(ba.getAfter());
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}
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private void makeDrawTextBox(Element node, LaTeXDocumentPortion ldp, Context oc) {
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Context ic = (Context) oc.clone();
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ic.setInFrame(true);
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ic.setNoFootnotes(true);
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// Check to see, if this is really a container for a figure caption
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boolean bIsCaption = false;
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if (OfficeReader.isSingleParagraph(node)) {
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Element par = Misc.getFirstChildElement(node);
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String sSeqName = ofr.getSequenceName(par);
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if (ofr.isFigureSequenceName(sSeqName)) { bIsCaption = true; }
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}
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String sWidth = Calc.truncateLength(getFrame(node).getAttribute(XMLString.SVG_WIDTH));
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if (!bIsCaption) {
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ldp.append("\\begin{minipage}{").append(sWidth).append("}").nl();
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}
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floatingFramesStack.push(new LinkedList<Element>());
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palette.getBlockCv().traverseBlockText(node,ldp,ic);
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flushFloatingFrames(ldp,ic);
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floatingFramesStack.pop();
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if (!bIsCaption) {
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ldp.append("\\end{minipage}");
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}
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if (!oc.isNoFootnotes()) { palette.getNoteCv().flushFootnotes(ldp,oc); }
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}
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//-------------------------------------------------------------------------
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//handle any pending floating frames
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public void flushFloatingFrames(LaTeXDocumentPortion ldp, Context oc) {
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// todo: fix language
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LinkedList<Element> floatingFrames = floatingFramesStack.peek();
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int n = floatingFrames.size();
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if (n==0) { return; }
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for (int i=0; i<n; i++) {
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Element node = (Element) floatingFrames.get(i);
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String sName = node.getNodeName();
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if (sName.equals(XMLString.DRAW_IMAGE)) {
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handleDrawImageFloat(node,ldp,oc);
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}
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else if (sName.equals(XMLString.DRAW_TEXT_BOX)) {
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handleDrawTextBoxFloat(node,ldp,oc);
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}
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}
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floatingFrames.clear();
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}
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} |