| /************************************************************** |
| * |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you under the Apache License, Version 2.0 (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.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, |
| * software distributed under the License is distributed on an |
| * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
| * KIND, either express or implied. See the License for the |
| * specific language governing permissions and limitations |
| * under the License. |
| * |
| *************************************************************/ |
| |
| |
| |
| package org.openoffice.xmerge.merger.merge; |
| |
| import org.w3c.dom.Node; |
| import org.w3c.dom.Element; |
| import org.w3c.dom.NodeList; |
| import org.w3c.dom.NamedNodeMap; |
| |
| import org.openoffice.xmerge.ConverterCapabilities; |
| import org.openoffice.xmerge.converter.xml.OfficeConstants; |
| |
| |
| /** |
| * Utility methods to handle sheet XML tree. |
| */ |
| public class SheetUtil { |
| |
| /** |
| * <p>Empty the content of a cell value. This includes the following: |
| * </p> |
| * |
| * <p><ul><li> |
| * Remove all of the supported attributes. |
| * </li><li> |
| * Remove the first <i>text:p</i> <code>Node</code> for most of the cells. |
| * </li></ul> |
| * |
| * @param cc The <code>ConverterCapabilities</code>. |
| * @param node The <code>Node</code>. |
| */ |
| public static void emptyCell(ConverterCapabilities cc, Node node) { |
| |
| NamedNodeMap attrNodes = node.getAttributes(); |
| |
| if (attrNodes != null) { |
| |
| // empty the first text:p node. |
| // Note: it's not necessary only string type cell contain text:p |
| // basically, all different type of cell will contain one |
| Element cell = (Element)node; |
| |
| // get the paragraph node list |
| NodeList paraNodes = |
| cell.getElementsByTagName(OfficeConstants.TAG_PARAGRAPH); |
| |
| Node firstParaNode = paraNodes.item(0); |
| |
| // remove the first paragraph element node |
| if (firstParaNode != null) { |
| Node parent = firstParaNode.getParentNode(); |
| parent.removeChild(firstParaNode); |
| } |
| |
| // check all the attributes and remove those we supported in |
| // converter |
| // NOTE: for attribute list, refer to section 4.7.2 in specification |
| int len = attrNodes.getLength(); |
| |
| for (int i = 0; i < len; ) { |
| Node attr = attrNodes.item(i); |
| |
| // when we hit the end of the attribute nodes, return |
| // it may happen sooner as we keep on removing nodes |
| if (attr == null) { |
| break; |
| } |
| // remove the supported attr except columns repeated attribute |
| if (cc.canConvertAttribute(OfficeConstants.TAG_TABLE_CELL, |
| attr.getNodeName()) && |
| !attr.getNodeName().equals( |
| OfficeConstants.ATTRIBUTE_TABLE_NUM_COLUMNS_REPEATED)) { |
| |
| attrNodes.removeNamedItem(attr.getNodeName()); |
| } else { |
| i++; |
| } |
| } |
| } |
| } |
| } |
| |