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21 
22 
23 package com.sun.star.report.pentaho.parser.rpt;
24 
25 import com.sun.star.report.pentaho.OfficeNamespaces;
26 
27 import org.jfree.report.expressions.FormulaFunction;
28 import org.jfree.report.structure.Element;
29 
30 import org.pentaho.reporting.libraries.xmlns.parser.AbstractXmlReadHandler;
31 
32 import org.xml.sax.Attributes;
33 import org.xml.sax.SAXException;
34 
35 /**
36  * Handles the 'report:conditional-print-expression' element that can appear
37  * in all report elements and all root-level sections.
38  *
39  * @author Thomas Morgner
40  * @since 02.03.2007
41  */
42 public class ConditionalPrintExpressionReadHandler
43         extends AbstractXmlReadHandler
44 {
45 
46     private final Element element;
47 
ConditionalPrintExpressionReadHandler(final Element element)48     public ConditionalPrintExpressionReadHandler(final Element element)
49     {
50         this.element = element;
51     }
52 
startParsing(final Attributes attrs)53     protected void startParsing(final Attributes attrs) throws SAXException
54     {
55         super.startParsing(attrs);
56         final String formula = attrs.getValue(OfficeNamespaces.OOREPORT_NS, "formula");
57         if (formula != null)
58         {
59             final FormulaFunction valueExpression = new FormulaFunction();
60             valueExpression.setFormula(formula);
61             element.setDisplayCondition(valueExpression);
62         }
63 
64     }
65 
66     /**
67      * Returns the object for this element or null, if this element does not
68      * create an object.
69      *
70      * @return the object.
71      */
getObject()72     public Object getObject()
73             throws SAXException
74     {
75         return element;
76     }
77 }
78