TextSpecInfoAtom is present in PPT 2003+. When the text is changed we must update this record, otherwise the ppt becomes corrupted

git-svn-id: https://svn.apache.org/repos/asf/poi/trunk@648274 13f79535-47bb-0310-9956-ffa450edef68

src/scratchpad/src/org/apache/poi/hslf/record/RecordTypes.java

@@ -92,7 +92,7 @@ public class RecordTypes {
     public static final Type TextBookmarkAtom = new Type(4007,null);
     public static final Type TextBytesAtom = new Type(4008,TextBytesAtom.class);
     public static final Type TxSIStyleAtom = new Type(4009,null);
-    public static final Type TextSpecInfoAtom = new Type(4010,null);
+    public static final Type TextSpecInfoAtom = new Type(4010, TextSpecInfoAtom.class);
     public static final Type DefaultRulerAtom = new Type(4011,null);
     public static final Type FontEntityAtom = new Type(4023,FontEntityAtom.class);
     public static final Type FontEmbeddedData = new Type(4024,null);

src/scratchpad/src/org/apache/poi/hslf/record/TextSpecInfoAtom.java

@@ -0,0 +1,85 @@
+/* ====================================================================
+   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.apache.poi.hslf.record;
+
+import org.apache.poi.util.LittleEndian;
+
+import java.io.OutputStream;
+import java.io.IOException;
+
+/**
+ * The special info runs contained in this text.
+ * Special info runs consist of character properties which don?t follow styles.
+ * 
+ * @author Yegor Kozlov
+ */
+public class TextSpecInfoAtom extends RecordAtom {
+    /**
+     * Record header.
+     */
+    private byte[] _header;
+
+    /**
+     * Record data.
+     */
+    private byte[] _data;
+
+    /**
+     * Constructs the link related atom record from its
+     *  source data.
+     *
+     * @param source the source data as a byte array.
+     * @param start the start offset into the byte array.
+     * @param len the length of the slice in the byte array.
+     */
+    protected TextSpecInfoAtom(byte[] source, int start, int len) {
+        // Get the header.
+        _header = new byte[8];
+        System.arraycopy(source,start,_header,0,8);
+
+        // Get the record data.
+        _data = new byte[len-8];
+        System.arraycopy(source,start+8,_data,0,len-8);
+
+    }
+    /**
+     * Gets the record type.
+     * @return the record type.
+     */
+    public long getRecordType() { return RecordTypes.TextSpecInfoAtom.typeID; }
+
+    /**
+     * Write the contents of the record back, so it can be written
+     * to disk
+     *
+     * @param out the output stream to write to.
+     * @throws java.io.IOException if an error occurs.
+     */
+    public void writeOut(OutputStream out) throws IOException {
+        out.write(_header);
+        out.write(_data);
+    }
+
+    /**
+     * Update the text length
+     *
+     * @param size the text length
+     */
+    public void setTextSize(int size){
+        LittleEndian.putInt(_data, 0, size);
+    }
+}