DOCX drawingML export: don't export textboxes of shapes twice

We already had code, so that in case a shape has a textbox, then we
wrote the textbox contents as the shape text, but textboxes were still
exported independently as well.

Build a list of textboxes at the start of the export, and ignore
anything that's on that list during export. In the future, if both RTF
and DOC will support textboxes, then this can be moved to
MSWordExportBase.

Change-Id: I9370b2bbda515ef605281ad398a358b2f24d8f0e

sw/source/filter/ww8/docxattributeoutput.cxx

@@ -4415,6 +4415,10 @@ void DocxAttributeOutput::OutputFlyFrame_Impl( const sw::Frame &rFrame, const Po
             break;
         case sw::Frame::eTxtBox:
             {
+                // If this is a TextBox of a shape, then ignore: it's handled in WriteTextBox().
+                if (m_rExport.SdrExporter().isTextBox(rFrame.GetFrmFmt()))
+                    break;
+
                 // The frame output is postponed to the end of the anchor paragraph
                 bool bDuplicate = false;
                 const OUString& rName = rFrame.GetFrmFmt().GetName();

sw/source/filter/ww8/docxsdrexport.cxx

@@ -29,6 +29,7 @@
 
 #include <frmatr.hxx>
 #include <frmfmt.hxx>
+#include <textboxhelper.hxx>
 #include <fmtanchr.hxx>
 #include <fmtornt.hxx>
 #include <fmtsrnd.hxx>
@@ -155,6 +156,8 @@ struct DocxSdrExport::Impl
     sal_Int32 m_nId ;
     sal_Int32 m_nSeq ;
     bool m_bDMLAndVMLDrawingOpen;
+    /// List of TextBoxes in this document: they are exported as part of their shape, never alone.
+    std::list<SwFrmFmt*> m_aTextBoxes;
 
     Impl(DocxSdrExport& rSdrExport, DocxExport& rExport, sax_fastparser::FSHelperPtr pSerializer, oox::drawingml::DrawingML* pDrawingML)
         : m_rSdrExport(rSdrExport),
@@ -176,7 +179,8 @@ struct DocxSdrExport::Impl
           m_pDashLineStyleAttr(0),
           m_nId(0),
           m_nSeq(0),
-          m_bDMLAndVMLDrawingOpen(false)
+          m_bDMLAndVMLDrawingOpen(false),
+          m_aTextBoxes(SwTextBoxHelper::findTextBoxes(m_rExport.pDoc))
     {
     }
 
@@ -1522,4 +1526,9 @@ bool DocxSdrExport::checkFrameBtlr(SwNode* pStartNode, sax_fastparser::FastAttri
     return false;
 }
 
+bool DocxSdrExport::isTextBox(const SwFrmFmt& rFrmFmt)
+{
+    return std::find(m_pImpl->m_aTextBoxes.begin(), m_pImpl->m_aTextBoxes.end(), &rFrmFmt) != m_pImpl->m_aTextBoxes.end();
+}
+
 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */

sw/source/filter/ww8/docxsdrexport.hxx

@@ -97,6 +97,8 @@ public:
     void writeVMLTextFrame(sw::Frame* pParentFrame);
     /// Undo the text direction mangling done by the frame btLr handler in writerfilter::dmapper::DomainMapper::lcl_startCharacterGroup()
     bool checkFrameBtlr(SwNode* pStartNode, sax_fastparser::FastAttributeList* pTextboxAttrList = 0);
+    /// Is this a standalone TextFrame, or used as a TextBox of a shape?
+    bool isTextBox(const SwFrmFmt& rFrmFmt);
 };
 
 #endif // INCLUDED_SW_SOURCE_FILTER_WW8_DOCXSDREXPORT_HXX