Fix bug #49096 - add clone support to Chart begin and end records, to allow cloning of more Chart containing sheets

git-svn-id: https://svn.apache.org/repos/asf/poi/trunk@950611 13f79535-47bb-0310-9956-ffa450edef68

src/documentation/content/xdocs/status.xml

 
     <changes>
         <release version="3.7-SNAPSHOT" date="2010-??-??">
+           <action dev="POI-DEVELOPERS" type="fix">49096 - add clone support to Chart begin and end records, to allow cloning of more Chart containing sheets</action>
            <action dev="POI-DEVELOPERS" type="add">List attachment names in the output of OutlookTextExtractor (to get attachment contents, use ExtractorFactory as normal)</action>
            <action dev="POI-DEVELOPERS" type="fix">48872 - allow DateFormatter.formatRawCellContents to handle 1904 as well as 1900 dates</action>
            <action dev="POI-DEVELOPERS" type="fix">48872 - handle MMMMM and elapsed time formatting rules in DataFormatter</action>

src/java/org/apache/poi/hssf/record/chart/BeginRecord.java

     {
         return sid;
     }
+    
+    public Object clone() {
+       BeginRecord br = new BeginRecord();
+       // No data so nothing to copy
+       return br;
+    }
 }

src/java/org/apache/poi/hssf/record/chart/EndRecord.java

     {
         return sid;
     }
+    
+    public Object clone() {
+       EndRecord er = new EndRecord();
+       // No data so nothing to copy
+       return er;
+    }
 }

src/testcases/org/apache/poi/hssf/usermodel/TestBugs.java

        assertEquals("RT", withoutExt.getString());
        assertTrue((withoutExt.getOptionFlags() & 0x0004) == 0x0000);
     }
+    
+    /**
+     * Problem with cloning a sheet with a chart
+     *  contained in it.
+     */
+    public void test49096() throws Exception {
+       HSSFWorkbook wb = openSample("49096.xls");
+       assertEquals(1, wb.getNumberOfSheets());
+       
+       assertNotNull(wb.getSheetAt(0));
+       wb.cloneSheet(0);
+       assertEquals(2, wb.getNumberOfSheets());
+       
+       wb = writeOutAndReadBack(wb);
+       assertEquals(2, wb.getNumberOfSheets());
+    }
 }