FIX: Use correct table x/y postion in docx export

Until now we exported the original x/y position values of the table
from the grabbag. Ignoring users actions like moving the table around.

Now, we compute the position from the parent frame and write the actual position
in the docx file.

Change-Id: I25a09f9c7c8fbe49acbd19e2b1440c7fa90b8aff
Reviewed-on: https://gerrit.libreoffice.org/67969
Tested-by: Jenkins
Reviewed-by: Miklos Vajna <vmiklos@collabora.com>

sw/qa/extras/ooxmlexport/ooxmlexport4.cxx

@@ -1237,6 +1237,17 @@ DECLARE_OOXMLEXPORT_TEST(testTdf81345_045Original,"tdf81345.docx")
 }
 #endif
 
+DECLARE_OOXMLEXPORT_TEST(testDocxTablePosition, "floating-table-position.docx")
+{
+    xmlDocPtr pXmlDoc = parseExport("word/document.xml");
+    if (!pXmlDoc)
+        return;
+
+    // the exported positions were wrong due to some missing shifting in the export code
+    assertXPath(pXmlDoc, "/w:document/w:body/w:tbl/w:tblPr/w:tblpPr", "tblpX", "3494");
+    assertXPath(pXmlDoc, "/w:document/w:body/w:tbl/w:tblPr/w:tblpPr", "tblpY", "4611");
+}
+
 CPPUNIT_PLUGIN_IMPLEMENT();
 
 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */

sw/source/filter/ww8/docxattributeoutput.cxx

@@ -3802,6 +3802,8 @@ void DocxAttributeOutput::TableDefinition( ww8::WW8TableNodeInfoInner::Pointer_t
         {
             FastAttributeList *attrListTablePos = FastSerializerHelper::createAttrList( );
             uno::Sequence<beans::PropertyValue> aTablePosition = rGrabBagElement.second.get<uno::Sequence<beans::PropertyValue> >();
+            // look for a surrounding frame and take it's position values
+            const ww8::Frame* pFrame = m_rExport.GetFloatingTableFrame();
             for (sal_Int32 i = 0; i < aTablePosition.getLength(); ++i)
             {
                 if (aTablePosition[i].Name == "vertAnchor" && !aTablePosition[i].Value.get<OUString>().isEmpty())
@@ -3842,11 +3844,42 @@ void DocxAttributeOutput::TableDefinition( ww8::WW8TableNodeInfoInner::Pointer_t
                 }
                 else if (aTablePosition[i].Name == "tblpX")
                 {
-                    attrListTablePos->add( FSNS( XML_w, XML_tblpX ), OString::number( aTablePosition[i].Value.get<sal_Int32>() ) );
+                    sal_Int32 nValue = 0;
+                    if (pFrame)
+                    {
+                        nValue = pFrame->GetFrameFormat().GetHoriOrient().GetPos();
+                        // we need to revert the additional shift introduced by
+                        // lcl_DecrementHoriOrientPosition() in writerfilter
+                        // 1st: left distance of the table
+                        const SwTableBox * pTabBox = pTableTextNodeInfoInner->getTableBox();
+                        const SwFrameFormat * pFrameFormat = pTabBox->GetFrameFormat();
+                        const SvxBoxItem& rBox = pFrameFormat->GetBox( );
+                        sal_uInt16 nLeftDistance = rBox.GetDistance(SvxBoxItemLine::LEFT);
+                        nValue += nLeftDistance;
+
+                        // 2nd: if a left border is given, revert the shift by half the width
+                        // from lcl_DecrementHoriOrientPosition() in writerfilter
+                        if (const editeng::SvxBorderLine* pLeftBorder = rBox.GetLeft())
+                        {
+                            long nWidth = pLeftBorder->GetWidth();
+                            nValue += (nWidth / 2);
+                        }
+                    }
+                    else
+                        nValue = aTablePosition[i].Value.get<sal_Int32>();
+
+                    attrListTablePos->add( FSNS( XML_w, XML_tblpX ), OString::number( nValue ) );
                 }
                 else if (aTablePosition[i].Name == "tblpY")
                 {
-                    attrListTablePos->add( FSNS( XML_w, XML_tblpY ), OString::number( aTablePosition[i].Value.get<sal_Int32>() ) );
+                    sal_Int32 nValue = 0;
+                    if (pFrame)
+                        // no additional shift occur (like in the tblpX case)
+                        nValue = pFrame->GetFrameFormat().GetVertOrient().GetPos();
+                    else
+                        nValue = aTablePosition[i].Value.get<sal_Int32>();
+
+                    attrListTablePos->add( FSNS( XML_w, XML_tblpY ), OString::number( nValue ) );
                 }
             }