fix fatal attempt to export kde302504-1.odt to docx

the enhanced-path contains decimal points so the
last element is a double not an integer

Change-Id: I90be76a2d4cb90ee7a904aa72fe65770c675fc53
(cherry picked from commit aeb52a85)

oox/source/export/drawingml.cxx

@@ -2289,14 +2289,15 @@ void DrawingML::WriteCustomGeometry( Reference< XShape > rXShape )
 
                     for ( int j = 0; j < aPairs.getLength(); ++j )
                     {
-                        if ( aPairs[j].First.Value.get<sal_Int32>() < nXMin )
-                            nXMin = aPairs[j].First.Value.get<sal_Int32>();
-                        if ( aPairs[j].Second.Value.get<sal_Int32>() < nYMin )
-                            nYMin = aPairs[j].Second.Value.get<sal_Int32>();
-                        if ( aPairs[j].First.Value.get<sal_Int32>() > nXMax )
-                            nXMax = aPairs[j].First.Value.get<sal_Int32>();
-                        if ( aPairs[j].Second.Value.get<sal_Int32>() > nYMax )
-                            nYMax = aPairs[j].Second.Value.get<sal_Int32>();
+                        sal_Int32 nCandidate(0);
+                        if ((aPairs[j].First.Value >>= nCandidate) && nCandidate < nXMin)
+                            nXMin = nCandidate;
+                        if ((aPairs[j].Second.Value >>= nCandidate) && nCandidate < nYMin)
+                            nYMin = nCandidate;
+                        if ((aPairs[j].First.Value >>= nCandidate) && nCandidate > nXMax)
+                            nXMax = nCandidate;
+                        if ((aPairs[j].Second.Value >>= nCandidate) && nCandidate > nYMax)
+                            nYMax = nCandidate;
                     }
                     mpFS->startElementNS( XML_a, XML_path,
                           XML_w, I64S( nXMax - nXMin ),

sw/qa/extras/ooxmlexport/ooxmlexport5.cxx

@@ -831,6 +831,12 @@ DECLARE_OOXMLEXPORT_TEST(testOO67471, "ooo67471-2.odt")
         assertXPathContent(pXmlDoc, "(//w:t)[2]", "B");
 }
 
+DECLARE_OOXMLEXPORT_TEST(testKDE302504, "kde302504-1.odt")
+{
+    if (xmlDocPtr pXmlDoc = parseExport("word/document.xml"))
+        assertXPath(pXmlDoc, "//v:shape", "ID", "KoPathShape");
+}
+
 CPPUNIT_PLUGIN_IMPLEMENT();
 
 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */