632 lines
22 KiB
Java
632 lines
22 KiB
Java
package writer2latex.xhtml;
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import javax.print.Doc;
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import org.w3c.dom.Document;
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import org.w3c.dom.Element;
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import org.w3c.dom.Node;
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import org.w3c.dom.NodeList;
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import writer2latex.office.OfficeReader;
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import writer2latex.office.StyleWithProperties;
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import writer2latex.office.XMLString;
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import writer2latex.util.Misc;
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public class PageSplitter {
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static Node truncatedListItemNodeContent = null;
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protected static Node splitSoftPageBreak(Node onode,OfficeReader ofr){
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//Find par node with soft page break inside and split it
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Document document = onode.getOwnerDocument();
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Element softPageBreak = document.createElement(XMLString.TEXT_SOFT_PAGE_BREAK);
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NodeList nodes = onode.getChildNodes();
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int i = 0;
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//Loop through the content nodes and split paragraph nodes with soft page break
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while (i < nodes.getLength()){
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Node child = nodes.item(i);
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//Necessary check if node is an Element
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if ((child.getNodeType() == Node.ELEMENT_NODE) && containsSPB(child)){
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String nodeName = child.getNodeName();
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//DEBUG
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//System.out.println("----------CURRENT NODE IS-------" + nodeName);
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//Create Duplicate Node!
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Element childFirstPart = (Element) child.cloneNode(false);
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StyleWithProperties style = null;
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if ((nodeName.equals(XMLString.TEXT_P) || nodeName.equals(XMLString.TEXT_H))) {
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//If SPB not the first node
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if (handleParagraph(childFirstPart, child)){
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onode.insertBefore(childFirstPart, child);
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style = ofr.getTableStyle(Misc.getAttribute(child, XMLString.TEXT_STYLE_NAME));
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}
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} else if (nodeName.equals(XMLString.TABLE_TABLE)) {
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if (handleTableTable(childFirstPart, child)){
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onode.insertBefore(childFirstPart, child);
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style = ofr.getTableStyle(Misc.getAttribute(child, XMLString.TABLE_STYLE_NAME));
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}
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} else if (nodeName.equals(XMLString.TEXT_LIST)) {
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if (handleList(childFirstPart, child)){
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onode.insertBefore(childFirstPart, child);
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style = ofr.getTableStyle(Misc.getAttribute(child, XMLString.TEXT_LIST_STYLE));
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}
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} else if (nodeName.equals(XMLString.TEXT_SECTION)) {
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if (handleSection(childFirstPart, child)){
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onode.insertBefore(childFirstPart, child);
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style = ofr.getTableStyle(Misc.getAttribute(child, XMLString.TEXT_SECTION));
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}
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} else if (nodeName.equals(XMLString.TEXT_TABLE_OF_CONTENT)){
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//HACK
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containsSPB(childFirstPart);
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i++;
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continue;
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} else if (nodeName.equals(XMLString.TEXT_SOFT_PAGE_BREAK)){
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//HACK
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i++;
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continue;
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}
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//TODO: IF fo:break before in original table - don't create SPB
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if (style == null || !"page".equals(style.getProperty(XMLString.FO_BREAK_BEFORE))){
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onode.insertBefore(softPageBreak.cloneNode(false), child);
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}
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//HACK!
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if (truncatedListItemNodeContent != null){
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NodeList itemNodeList= truncatedListItemNodeContent.getChildNodes();
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while (itemNodeList.getLength() > 0){
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onode.insertBefore(itemNodeList.item(0), child);
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}
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truncatedListItemNodeContent.getParentNode().removeChild(truncatedListItemNodeContent);
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truncatedListItemNodeContent = null;
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}
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if (!child.hasChildNodes()){
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onode.removeChild(child);
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}
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continue;
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}
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i++;
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}
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return onode;
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}
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private static boolean handleList(Node listFirstPart, Node list){
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NodeList listNodes = list.getChildNodes();
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int i = 0;
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boolean dataMoved = false;
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while (listNodes.getLength() > i) {
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Node listChild = listNodes.item(i);
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if(listChild.getNodeType() == Node.ELEMENT_NODE){
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String nodeName = listChild.getNodeName();
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if (nodeName.equals(XMLString.TEXT_LIST_HEADER)) {
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if(containsSPB(listChild)){
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//Remove inner SPB
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removeSPB(listChild);
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//HACK :(
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break;
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}
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listFirstPart.appendChild(listChild.cloneNode(true));
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//Get next element
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i++;
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} else if (nodeName.equals(XMLString.TEXT_LIST_ITEM)) {
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if (containsSPB(listChild)){
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Node listItemFirstPart = listChild.cloneNode(false);
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//remove SPB, move previous nodes to firstPart.
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if (handleListItem(listItemFirstPart,listChild)){
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dataMoved = true;
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//Add first part of list item to previous list item
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listFirstPart.appendChild(listItemFirstPart);
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//Get list parent node and move cutted node
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//After First Part and SPB but before this list;
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//TODO!!!!!!!!!!
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truncatedListItemNodeContent = listChild;
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listFirstPart.getParentNode();
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//If List item is empty - remove it
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if (!listChild.hasChildNodes()){
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list.removeChild(listChild);
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}
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}
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//Add text:continue-numbering="true"
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if (dataMoved){
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((Element) list).setAttribute(XMLString.TEXT_CONTINUE_NUMBERING, "true");
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}
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break;
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} else {
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// Not with SPB yet, move node, set dataMoved=true
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listFirstPart.appendChild(listChild);
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dataMoved = true;
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}
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}
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}
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}
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return dataMoved;
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}
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//If SPB before first item - return false, remove SPB
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//Otherwise add childNodes before SPB to firstPart, return true
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private static boolean handleListItem(Node listItemFirstPart, Node listItem){
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int i = 0;
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boolean dataMoved = false;
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NodeList listItemNodes = listItem.getChildNodes();
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while(listItemNodes.getLength() > i){
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Node listItemChild = listItemNodes.item(i);
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if(listItemChild.getNodeType() == Node.ELEMENT_NODE){
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//Node name
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String nodeName = listItemChild.getNodeName();
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if (containsSPB(listItemChild)){
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Node listItemChildFirstPart = listItemChild.cloneNode(false);
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//Break if SPB
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if (nodeName.equals(XMLString.TEXT_SOFT_PAGE_BREAK)) {
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//Remove SPB.Return result
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listItem.removeChild(listItemChild);
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} else if (nodeName.equals(XMLString.TEXT_LIST)) {
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if (handleList(listItemChildFirstPart, listItemChild)){
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listItemFirstPart.appendChild(listItemChildFirstPart);
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dataMoved=true;
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}
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} else if (nodeName.equals(XMLString.TEXT_H) || nodeName.equals(XMLString.TEXT_P)) {
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if (handleParagraph(listItemChildFirstPart, listItemChild)){
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listItemFirstPart.appendChild(listItemChildFirstPart);
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dataMoved=true;
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}
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}
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break;
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//Move to first part
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} else {
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listItemFirstPart.appendChild(listItemChild);
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dataMoved = true;
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}
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} else {
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listItemFirstPart.appendChild(listItemChild);
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dataMoved = true;
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}
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//check internal nodes
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}
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return dataMoved;
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}
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//Needs finish
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private static boolean handleTableTable(Node tableFirstPart, Node table) {
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/*
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* // TODO: 0.Test if soft-page-break not at start of table // - in that
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* case just remove it and insert before table // 1.Create new table //
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* 2.Copy to it table:table-column's and // table:table-header-rows //
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* 3.Move nodes before soft-page-break to new table //4. IF in one
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* table:row exist more one Algorithm IF SPB at start - just move it
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* higher IF SPB between rows - just copy table move row and put SPB
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* between tables IF SPB inside row, inside cell - copy table, copy
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* empty row, copy each empty cell and in each cell move every node up
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* to the first SPB
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*
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*
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*/
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NodeList tableChildNodes = table.getChildNodes();
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// Node counter
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int i = 0;
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boolean dataMoved = false;
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// Loop through the TABLE:TABLE child nodes
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while (tableChildNodes.getLength() > i) {
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Node tableChildNode = tableChildNodes.item(i);
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if (tableChildNode.getNodeType() == Node.ELEMENT_NODE) {
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//Node name
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String tableChildNodeName = tableChildNode.getNodeName();
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//System.out.println("Table child node " + tableChildNodeName);
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if (containsSPB(tableChildNode)){
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Node tableChildFirstPart = tableChildNode.cloneNode(false);
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if (tableChildNodeName.equals(XMLString.TEXT_SOFT_PAGE_BREAK)) {
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// remove inner soft page break node
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table.removeChild(tableChildNode);
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} else if (tableChildNodeName.equals(XMLString.TABLE_TABLE_ROW_GROUP)) {
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if (handleTableRowGroup(tableChildFirstPart, tableChildNode)){
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dataMoved = true;
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tableFirstPart.appendChild(tableChildFirstPart);
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}
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} else if ( tableChildNodeName.equals(XMLString.TABLE_TABLE_ROWS)) {
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if (handleTableRows(tableChildFirstPart, tableChildNode)){
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dataMoved = true;
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tableFirstPart.appendChild(tableChildFirstPart);
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}
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} else if ( tableChildNodeName.equals(XMLString.TABLE_TABLE_ROW)) {
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if (handleTableRow(tableChildFirstPart, tableChildNode)){
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dataMoved = true;
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tableFirstPart.appendChild(tableChildFirstPart);
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}
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} else if (tableChildNodeName.equals(XMLString.TABLE_TABLE_COLUMN)
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|| tableChildNodeName.equals(XMLString.TABLE_TABLE_COLUMN_GROUP)
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|| tableChildNodeName.equals(XMLString.TABLE_TABLE_HEADER_ROWS)
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|| tableChildNodeName.equals(XMLString.TABLE_TABLE_HEADER_COLUMNS)) {
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//Remove Soft Page Break
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removeSPB(tableChildNode);
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}
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break;
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} else {
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//Before SPB
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//Description nodes
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if (tableChildNodeName.equals(XMLString.TABLE_TABLE_COLUMN)
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|| tableChildNodeName.equals(XMLString.TABLE_TABLE_COLUMN_GROUP)
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|| tableChildNodeName.equals(XMLString.TABLE_TABLE_HEADER_ROWS)
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|| tableChildNodeName.equals(XMLString.TABLE_TABLE_HEADER_COLUMNS)) {
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//Append to clone table
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tableFirstPart.appendChild(tableChildNode.cloneNode(true));
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//increment counter
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i++;
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} else {
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//Append to clone table
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tableFirstPart.appendChild(tableChildNode);
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dataMoved = true;
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}
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}
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}
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}
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return dataMoved;
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}
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private static boolean handleTableRowGroup(Node tableRowGroupFistPart, Node tableRowGroup) {
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boolean dataMoved = false;
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// Node counter
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int i = 0;
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NodeList tableRowGroupChildNodes = tableRowGroup.getChildNodes();
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while (tableRowGroupChildNodes.getLength() > i) {
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Node tableRowGroupChildNode = tableRowGroupChildNodes.item(0);
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if ((tableRowGroupChildNode.getNodeType() == Node.ELEMENT_NODE)) {
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String nodeName = tableRowGroupChildNode.getNodeName();
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if (containsSPB(tableRowGroupChildNode)){
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Node tableRowGroupChildFirstPart = tableRowGroupChildNode.cloneNode(false);
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if (nodeName.equals(XMLString.TEXT_SOFT_PAGE_BREAK)){
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// remove inner soft page break node
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tableRowGroup.removeChild(tableRowGroupChildNode);
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} else if (nodeName.equals(XMLString.TABLE_TABLE_HEADER_ROWS)){
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//Nothing IF table-header-rows found - it is description node,
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//Not needed to set dataMoved = true, not needed to append First part
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} else if (nodeName.equals(XMLString.TABLE_TABLE_ROW)){
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if (handleTableRow(tableRowGroupChildFirstPart, tableRowGroupChildNode)){
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dataMoved = true;
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tableRowGroupFistPart.appendChild(tableRowGroupChildFirstPart);
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}
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} else if (nodeName.equals(XMLString.TABLE_TABLE_ROW_GROUP)){
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if (handleTableRowGroup(tableRowGroupChildFirstPart, tableRowGroupChildNode)){
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dataMoved = true;
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tableRowGroupFistPart.appendChild(tableRowGroupChildFirstPart);
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}
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} else if (nodeName.equals(XMLString.TABLE_TABLE_ROWS)){
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if (handleTableRows(tableRowGroupChildFirstPart, tableRowGroupChildNode)){
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dataMoved = true;
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tableRowGroupFistPart.appendChild(tableRowGroupChildFirstPart);
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}
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}
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break;
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} else {
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if (nodeName.equals(XMLString.TABLE_TABLE_HEADER_ROWS)){
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tableRowGroupFistPart.appendChild(tableRowGroupChildNode.cloneNode(true));
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//increment counter
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i++;
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} else {
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tableRowGroupFistPart.appendChild(tableRowGroupChildNode);
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dataMoved = true;
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}
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}
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} else {
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//Append text nodes
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tableRowGroupFistPart.appendChild(tableRowGroupChildNode);
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dataMoved = true;
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}
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}
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return dataMoved;
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}
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private static boolean handleTableRows(Node tableRowsFistPart, Node tableRows) {
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boolean dataMoved = false;
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// Node counter
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int i = 0;
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NodeList tableRowsChildNodes = tableRows.getChildNodes();
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while (tableRowsChildNodes.getLength() > i) {
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Node tableRowsChildNode = tableRowsChildNodes.item(0);
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if ((tableRowsChildNode.getNodeType() == Node.ELEMENT_NODE)) {
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String nodeName = tableRowsChildNode.getNodeName();
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if (containsSPB(tableRowsChildNode)){
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Node tableRowGroupChildFirstPart = tableRowsChildNode.cloneNode(false);
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if (nodeName.equals(XMLString.TEXT_SOFT_PAGE_BREAK)){
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// remove inner soft page break node
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tableRows.removeChild(tableRowsChildNode);
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} else if (nodeName.equals(XMLString.TABLE_TABLE_ROW)){
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if (handleTableRow(tableRowGroupChildFirstPart, tableRowsChildNode)){
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dataMoved = true;
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tableRowsFistPart.appendChild(tableRowGroupChildFirstPart);
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}
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}
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break;
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} else {
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tableRowsFistPart.appendChild(tableRowsChildNode);
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dataMoved = true;
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}
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} else {
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System.out.println("ERROR: TEXT NODE FOUND INSIDE tabl:table-rows");
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//Append text nodes
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//tableRowsFistPart.appendChild(tableRowsChildNode);
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//dataMoved = true;
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}
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}
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return dataMoved;
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}
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private static boolean handleTableRow(Node tableRowFistPart, Node tableRow) {
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boolean dataMoved = false;
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// Node counter
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int i = 0;
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NodeList tableRowChildNodes = tableRow.getChildNodes();
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while (tableRowChildNodes.getLength() > i) {
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Node tableRowChildNode = tableRowChildNodes.item(i);
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if ((tableRowChildNode.getNodeType() == Node.ELEMENT_NODE)) {
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String nodeName = tableRowChildNode.getNodeName();
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if (containsSPB(tableRowChildNode)){
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Node tableRowGroupChildFirstPart = tableRowChildNode.cloneNode(false);
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if (nodeName.equals(XMLString.TABLE_TABLE_CELL)){
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if (handleCell(tableRowGroupChildFirstPart, tableRowChildNode)){
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dataMoved = true;
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tableRowFistPart.appendChild(tableRowGroupChildFirstPart);
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}
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} else if (nodeName.equals(XMLString.TABLE_COVERED_TABLE_CELL)){
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//Implement handleCoveredCell in future
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if (handleCell(tableRowGroupChildFirstPart, tableRowChildNode)){
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dataMoved = true;
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tableRowFistPart.appendChild(tableRowGroupChildFirstPart);
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}
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}
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} else {
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//System.out.println("HERE " + nodeName);
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//Move node without SPB above
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tableRowFistPart.appendChild(tableRowChildNode.cloneNode(true));
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Node emptyCell = tableRowChildNode.cloneNode(false);
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Document document = tableRow.getOwnerDocument();
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Element textP = document.createElement(XMLString.TEXT_P);
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emptyCell.appendChild(textP);
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tableRow.insertBefore(emptyCell, tableRowChildNode);
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tableRow.removeChild(tableRowChildNode);
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dataMoved = true;
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}
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i++;
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} else {
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System.out.println("ERROR: TEXT NODE FOUND INSIDE tabl:table-row");
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//Append text nodes
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//tableRowsFistPart.appendChild(tableRowsChildNode);
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//dataMoved = true;
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}
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}
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return dataMoved;
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}
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private static boolean handleCell(Node cellFirstPart, Node cellNode) {
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boolean dataMoved = false;
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// Node counter
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int i = 0;
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NodeList cellChildNodes = cellNode.getChildNodes();
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while (cellChildNodes.getLength() > i) {
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Node cellChildNode = cellChildNodes.item(0);
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if ((cellChildNode.getNodeType() == Node.ELEMENT_NODE)) {
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String nodeName = cellChildNode.getNodeName();
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if (containsSPB(cellChildNode)){
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Node cellChildFirstPart = cellChildNode.cloneNode(false);
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if (nodeName.equals(XMLString.TEXT_SOFT_PAGE_BREAK)){
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// remove inner soft page break node
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cellNode.removeChild(cellChildNode);
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} else if (nodeName.equals(XMLString.TEXT_H) || nodeName.equals(XMLString.TEXT_P)) {
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if (handleParagraph(cellChildFirstPart, cellChildNode)){
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cellFirstPart.appendChild(cellChildFirstPart);
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dataMoved=true;
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}
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}
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break;
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} else {
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cellFirstPart.appendChild(cellChildNode);
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dataMoved = true;
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}
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} else {
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//Append text nodes
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cellFirstPart.appendChild(cellChildNode);
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dataMoved = true;
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}
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}
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return dataMoved;
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}
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private static boolean handleSection(Node sectionFirstPart, Node sectionNode) {
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boolean dataMoved = false;
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// Node counter
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int i = 0;
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NodeList sectionChildNodes = sectionNode.getChildNodes();
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while (sectionChildNodes.getLength() > i) {
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Node sectionChildNode = sectionChildNodes.item(0);
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if ((sectionChildNode.getNodeType() == Node.ELEMENT_NODE)) {
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String nodeName = sectionChildNode.getNodeName();
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if (containsSPB(sectionChildNode)){
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Node sectionChildFirstPart = sectionChildNode.cloneNode(false);
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if (nodeName.equals(XMLString.TEXT_SOFT_PAGE_BREAK)){
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// remove inner soft page break node
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sectionNode.removeChild(sectionChildNode);
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} else if (nodeName.equals(XMLString.TEXT_H) || nodeName.equals(XMLString.TEXT_P)) {
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if (handleParagraph(sectionChildFirstPart, sectionChildNode)){
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sectionFirstPart.appendChild(sectionChildFirstPart);
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dataMoved=true;
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}
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} else if (nodeName.equals(XMLString.TEXT_TABLE_OF_CONTENT)) {
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//HACK
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removeSPB(sectionNode);
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i++;
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continue;
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}
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break;
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} else {
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sectionFirstPart.appendChild(sectionChildNode);
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dataMoved = true;
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}
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} else {
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//Append text nodes
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sectionFirstPart.appendChild(sectionChildNode);
|
|
dataMoved = true;
|
|
}
|
|
|
|
}
|
|
return dataMoved;
|
|
}
|
|
|
|
|
|
private static boolean handleParagraph(Node paraFirstPart, Node paraNode) {
|
|
boolean dataMoved = false;
|
|
int i = 0;
|
|
NodeList paraChildNodes = paraNode.getChildNodes();
|
|
while (paraChildNodes.getLength() > i) {
|
|
Node paraChildNode = paraChildNodes.item(i);
|
|
//NOT TEXT NODES
|
|
if ((paraChildNode.getNodeType() == Node.ELEMENT_NODE)) {
|
|
String nodeName = paraChildNode.getNodeName();
|
|
//System.out.println(nodeName);
|
|
//SPB FOUND
|
|
if (containsSPB(paraChildNode)){
|
|
if (nodeName.equals(XMLString.TEXT_SOFT_PAGE_BREAK)){
|
|
|
|
|
|
|
|
//Next node in paragraph. If it is text node go further
|
|
Node paraNextNode = paraChildNodes.item(i+1);
|
|
Node paraPrevNode = paraFirstPart.getLastChild();
|
|
String nextText = null;
|
|
String prevText = null;
|
|
if (paraNextNode != null && paraPrevNode != null ){
|
|
|
|
if (paraNextNode.getNodeType() == Node.TEXT_NODE) {
|
|
nextText = paraNextNode.getTextContent();
|
|
} else if (paraNextNode.getNodeType() == Node.ELEMENT_NODE) {
|
|
Node nextNodeFirstChild = paraNextNode.getFirstChild();
|
|
if (nextNodeFirstChild != null && nextNodeFirstChild.getNodeType() == Node.TEXT_NODE) {
|
|
nextText = nextNodeFirstChild.getTextContent();
|
|
}
|
|
}
|
|
if (paraPrevNode.getNodeType() == Node.TEXT_NODE){
|
|
prevText = paraPrevNode.getTextContent();
|
|
} else if (paraPrevNode.getNodeType() == Node.ELEMENT_NODE) {
|
|
Node prevNodeLastChild = paraPrevNode.getLastChild();
|
|
if (prevNodeLastChild != null && prevNodeLastChild.getNodeType() == Node.TEXT_NODE) {
|
|
prevText = prevNodeLastChild.getTextContent();
|
|
}
|
|
}
|
|
//If previous and next texts exists
|
|
if (nextText != null && prevText != null) {
|
|
//If first character in next text is a letter
|
|
//And if last character in previous text is a letter or soft hyphen
|
|
if (Character.isLetter(nextText.charAt(0))
|
|
&& (Character.isLetter(prevText.charAt(prevText.length() - 1))
|
|
|| prevText.charAt(prevText.length() - 1) == 173)) {
|
|
paraPrevNode.setTextContent(prevText + "\u2010");
|
|
}
|
|
}
|
|
}
|
|
// In case paragraph is empty add space to prevent it's removing
|
|
if (paraNextNode == null && paraPrevNode == null){
|
|
Document doc = paraNode.getOwnerDocument();
|
|
Node space = doc.createTextNode(" ");
|
|
paraNode.insertBefore(space, paraChildNode);
|
|
}
|
|
|
|
// remove inner soft page break node
|
|
paraNode.removeChild(paraChildNode);
|
|
|
|
/* Check if next node in para is text and first char is a letter
|
|
* Check if last node in paraFirstPart is text and last char is a letter
|
|
* If both true - add
|
|
*/
|
|
} else {
|
|
System.out.println("ERROR: SPB INSIDE Paragraph Element in inner element " + nodeName);
|
|
//checkSoftPageBreak(internalNode, true);
|
|
//paraFirstPart.appendChild(internalNode);
|
|
//dataMoved = true;
|
|
}
|
|
break;
|
|
//ELEMENT WITHOUT SPB
|
|
} else if (nodeName.equals(XMLString.TEXT_BOOKMARK_START)){
|
|
paraFirstPart.appendChild(paraChildNode.cloneNode(true));
|
|
i++;
|
|
} else {
|
|
paraFirstPart.appendChild(paraChildNode);
|
|
dataMoved = true;
|
|
}
|
|
//TEXT NODES
|
|
} else {
|
|
paraFirstPart.appendChild(paraChildNode);
|
|
dataMoved = true;
|
|
}
|
|
|
|
}
|
|
return dataMoved;
|
|
}
|
|
// Returns true if soft-page-break found. Removes it if removeFound = true
|
|
private static void removeSPB(Node node) {
|
|
if (node.getNodeType() == Node.ELEMENT_NODE) {
|
|
if (node.getNodeName().equals(XMLString.TEXT_SOFT_PAGE_BREAK)) {
|
|
Node parent = node.getParentNode();
|
|
parent.removeChild(node);
|
|
return;
|
|
}
|
|
if (node.hasChildNodes()) {
|
|
int currentNo = 0;
|
|
NodeList childNodes = node.getChildNodes();
|
|
while (currentNo < childNodes.getLength()) {
|
|
Node childNode = childNodes.item(currentNo);
|
|
removeSPB(childNode);
|
|
currentNo++;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
private static boolean containsSPB(Node node) {
|
|
if (node.getNodeType() == Node.ELEMENT_NODE) {
|
|
if (node.getNodeName().equals(XMLString.TEXT_SOFT_PAGE_BREAK)) {
|
|
return true;
|
|
}
|
|
if (node.hasChildNodes()) {
|
|
int currentNo = 0;
|
|
NodeList childNodes = node.getChildNodes();
|
|
while (currentNo < childNodes.getLength()) {
|
|
Node childNode = childNodes.item(currentNo);
|
|
if (containsSPB(childNode)) {
|
|
return true;
|
|
}
|
|
currentNo++;
|
|
}
|
|
}
|
|
}
|
|
return false;
|
|
}
|
|
|
|
}
|
|
|