1 files changed, 107 insertions, 0 deletions
diff --git a/xmerge/source/xmerge/java/org/openoffice/xmerge/merger/merge/SheetUtil.java b/xmerge/source/xmerge/java/org/openoffice/xmerge/merger/merge/SheetUtil.java
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index 000000000000..0329434105b8
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+++ b/xmerge/source/xmerge/java/org/openoffice/xmerge/merger/merge/SheetUtil.java
@@ -0,0 +1,107 @@
+/*************************************************************************
+ *
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * Copyright 2000, 2010 Oracle and/or its affiliates.
+ *
+ * OpenOffice.org - a multi-platform office productivity suite
+ *
+ * This file is part of OpenOffice.org.
+ *
+ * OpenOffice.org is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License version 3
+ * only, as published by the Free Software Foundation.
+ *
+ * OpenOffice.org 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 Lesser General Public License version 3 for more details
+ * (a copy is included in the LICENSE file that accompanied this code).
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * version 3 along with OpenOffice.org.  If not, see
+ * <http://www.openoffice.org/license.html>
+ * for a copy of the LGPLv3 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></p>
+     *
+     *  @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++;
+                }
+            }
+        }
+    }
+}
+