Adding upstream version 4:7.4.7.upstream/4%7.4.7upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 99 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
new file mode 100644
index 000000000..2f5a8ebe9
--- /dev/null
+++ b/xmerge/source/xmerge/java/org/openoffice/xmerge/merger/merge/SheetUtil.java
@@ -0,0 +1,99 @@
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ *
+ * This file incorporates work covered by the following license notice:
+ *
+ *   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 .
+ */
+
+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 {
+
+    /**
+     * Empty the content of a cell value.
+     *
+     * <p>This includes the following:</p>
+     *
+     * <ul>
+     *   <li>
+     *     Remove all of the supported attributes.
+     *   </li><li>
+     *     Remove the first <i>text:p</i> {@code Node} for most of the cells.
+     *   </li>
+     * </ul>
+     *
+     *  @param  cc    The {@code ConverterCapabilities}.
+     *  @param  node  The {@code Node}.
+     */
+    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++;
+                }
+            }
+        }
+    }
+}
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