Fix two issues in ActiveX DOCX import / export code

* Inline anchored VML shape had wrong vertical position
** In MSO inline shapes are positioned to the top of the baseline
* During export all shape ids were the same (shape_0)
** VML shapes used to be exported only as fallback,
I guess that's why it did not cause any issue before.
** Override the shapeid generator with a new one, which
actually generates unique shapeids.

Change-Id: I752f39d092d0b61d91824141655dae662dbeafbc
Reviewed-on: https://gerrit.libreoffice.org/41319
Reviewed-by: Tamás Zolnai <tamas.zolnai@collabora.com>
Tested-by: Tamás Zolnai <tamas.zolnai@collabora.com>

1 files changed, 26 insertions, 1 deletions

diff --git a/oox/source/export/vmlexport.cxx b/oox/source/export/vmlexport.cxx
index a401c3c44465..f45edde6cc86 100644
--- a/oox/source/export/vmlexport.cxx
+++ b/oox/source/export/vmlexport.cxx
@@ -68,6 +68,8 @@ VMLExport::VMLExport( ::sax_fastparser::FSHelperPtr const & pSerializer, VMLText
     , m_aShapeTypeWritten( ESCHER_ShpInst_COUNT )
     , m_bSkipwzName( false )
     , m_bUseHashMarkForType( false )
+    , m_bOverrideShapeIdGeneration( false )
+    , m_nShapeIDCounter( 0 )
 {
     mnGroupLevel = 1;
 }
@@ -208,6 +210,18 @@ bool VMLExport::IsWaterMarkShape(const OUString& rStr)
      return rStr.match("PowerPlusWaterMarkObject") || rStr.match("WordPictureWatermark");
 }
 
+void VMLExport::OverrideShapeIDGen(bool bOverrideShapeIdGen, const OString sShapeIDPrefix)
+{
+    m_bOverrideShapeIdGeneration = bOverrideShapeIdGen;
+    if(bOverrideShapeIdGen)
+    {
+        assert(!sShapeIDPrefix.isEmpty());
+        m_sShapeIDPrefix = sShapeIDPrefix;
+    }
+    else
+        m_sShapeIDPrefix.clear();
+}
+
 static void impl_AddArrowHead( sax_fastparser::FastAttributeList *pAttrList, sal_Int32 nElement, sal_uInt32 nValue )
 {
     if ( !pAttrList )
@@ -884,7 +898,10 @@ void VMLExport::Commit( EscherPropertyContainer& rProps, const tools::Rectangle&
 
 OString VMLExport::ShapeIdString( sal_uInt32 nId )
 {
-    return "shape_" + OString::number( nId );
+    if(m_bOverrideShapeIdGeneration)
+        return m_sShapeIDPrefix + OString::number( nId );
+    else
+        return "shape_" + OString::number( nId );
 }
 
 void VMLExport::AddFlipXY( )
@@ -1025,6 +1042,14 @@ OUString lcl_getAnchorIdFromGrabBag(const SdrObject* pSdrObject)
     return aResult;
 }
 
+sal_uInt32 VMLExport::GenerateShapeId()
+{
+    if(!m_bOverrideShapeIdGeneration)
+        return EscherEx::GenerateShapeId();
+    else
+        return m_nShapeIDCounter++;
+}
+
 sal_Int32 VMLExport::StartShape()
 {
     if ( m_nShapeType == ESCHER_ShpInst_Nil )