tdf#91261: DOCX import: snapGrid property of paragraphs are ignored

Fix the situation for OOXML import filter:
a) While handling DocGrid type, SnapToChars was treated as
   None. Now it is implemented as described in the article:
http://linpeifeng.blogspot.tw/2007/02/text-grid-enhancement.html
   Both LinesAndChars and SnapToChars will be translated to
   Writer grid type  "lines and characters", and set SnapToGrid
   property to false or true accordingly.

b) All the imported paragraphs snap to grid because SnapToGrid was
   appended to grabbag, now it allows SnapToGrid property in
   paragraph and paragraph styles to be imported properly.

Change-Id: I446b4c64c0ed86960896bcd61a1006c9173a757a
Reviewed-on: https://gerrit.libreoffice.org/15732
Reviewed-by: Michael Stahl <mstahl@redhat.com>
Tested-by: Michael Stahl <mstahl@redhat.com>

5 files changed, 27 insertions, 5 deletions

diff --git a/writerfilter/source/dmapper/DomainMapper.cxx b/writerfilter/source/dmapper/DomainMapper.cxx
index abe1069c8885..5542cca364e3 100644
--- a/writerfilter/source/dmapper/DomainMapper.cxx
+++ b/writerfilter/source/dmapper/DomainMapper.cxx
@@ -934,14 +934,18 @@ void DomainMapper::lcl_attribute(Id nName, Value & val)
                 switch( nIntValue )
                 {
                     case NS_ooxml::LN_Value_doc_ST_DocGrid_default:
-                    case NS_ooxml::LN_Value_doc_ST_DocGrid_snapToChars:
-                        pSectionContext->SetGridType( 0 );
+                        pSectionContext->SetGridType(text::TextGridMode::NONE);
                         break;
                     case NS_ooxml::LN_Value_doc_ST_DocGrid_lines:
-                        pSectionContext->SetGridType( 1 );
+                        pSectionContext->SetGridType(text::TextGridMode::LINES);
                         break;
                     case NS_ooxml::LN_Value_doc_ST_DocGrid_linesAndChars:
-                        pSectionContext->SetGridType( 2 );
+                        pSectionContext->SetGridType(text::TextGridMode::LINES_AND_CHARS);
+                        pSectionContext->SetGridSnapToChars( false );
+                        break;
+                    case NS_ooxml::LN_Value_doc_ST_DocGrid_snapToChars:
+                        pSectionContext->SetGridType(text::TextGridMode::LINES_AND_CHARS);
+                        pSectionContext->SetGridSnapToChars( true );
                         break;
                     default :
                         OSL_FAIL("unknown SwTextGrid value");
@@ -2005,7 +2009,14 @@ void DomainMapper::sprmWithProps( Sprm& rSprm, PropertyMapPtr rContext )
     break;
 
     case NS_ooxml::LN_CT_PPrBase_snapToGrid:
-        m_pImpl->appendGrabBag(m_pImpl->m_aInteropGrabBag, "snapToGrid", OUString::number(nIntValue));
+        if (!IsStyleSheetImport()||!m_pImpl->isInteropGrabBagEnabled())
+        {
+            rContext->Insert( PROP_SNAP_TO_GRID, uno::makeAny(bool(nIntValue)));
+        }
+        else
+        {
+            m_pImpl->appendGrabBag(m_pImpl->m_aInteropGrabBag, "snapToGrid", OUString::number(nIntValue));
+        }
     break;
     case NS_ooxml::LN_CT_PPrBase_pStyle:
     {
diff --git a/writerfilter/source/dmapper/PropertyIds.cxx b/writerfilter/source/dmapper/PropertyIds.cxx
index 5506322c857c..059a5808a4a8 100644
--- a/writerfilter/source/dmapper/PropertyIds.cxx
+++ b/writerfilter/source/dmapper/PropertyIds.cxx
@@ -403,6 +403,8 @@ OUString PropertyNameSupplier::GetName( PropertyIds eId ) const
             case PROP_FOLLOW_TEXT_FLOW: sName = "IsFollowingTextFlow"; break;
             case PROP_FILL_STYLE: sName = "FillStyle"; break;
             case PROP_FILL_COLOR: sName = "FillColor"; break;
+            case PROP_SNAP_TO_GRID: sName = "SnapToGrid"; break;
+            case PROP_GRID_SNAP_TO_CHARS: sName = "GridSnapToChars"; break;
         }
         ::std::pair<PropertyNameMap_t::iterator,bool> aInsertIt =
                 m_pImpl->aNameMap.insert( PropertyNameMap_t::value_type( eId, sName ));
diff --git a/writerfilter/source/dmapper/PropertyIds.hxx b/writerfilter/source/dmapper/PropertyIds.hxx
index 51b27320cc3a..956e6f8adf25 100644
--- a/writerfilter/source/dmapper/PropertyIds.hxx
+++ b/writerfilter/source/dmapper/PropertyIds.hxx
@@ -377,6 +377,8 @@ enum PropertyIds
         ,PROP_FOLLOW_TEXT_FLOW
         ,PROP_FILL_STYLE
         ,PROP_FILL_COLOR
+        ,PROP_SNAP_TO_GRID
+        ,PROP_GRID_SNAP_TO_CHARS
     };
 struct PropertyNameSupplier_Impl;
 class PropertyNameSupplier
diff --git a/writerfilter/source/dmapper/PropertyMap.cxx b/writerfilter/source/dmapper/PropertyMap.cxx
index f2f49b1ddc1c..dcf4f3bd349b 100644
--- a/writerfilter/source/dmapper/PropertyMap.cxx
+++ b/writerfilter/source/dmapper/PropertyMap.cxx
@@ -427,6 +427,7 @@ SectionPropertyMap::SectionPropertyMap(bool bIsFirstSection) :
     ,m_nGridType(0)
     ,m_nGridLinePitch( 1 )
     ,m_nDxtCharSpace( 0 )
+    ,m_bGridSnapToChars(true)
     ,m_nLnnMod( 0 )
     ,m_nLnc( 0 )
     ,m_ndxaLnn( 0 )
@@ -1168,6 +1169,10 @@ void SectionPropertyMap::CloseSectionGroup( DomainMapper_Impl& rDM_Impl )
 
         // PROP_GRID_MODE
         Insert( PROP_GRID_MODE, uno::makeAny( static_cast<sal_Int16> (m_nGridType) ));
+        if (m_nGridType == text::TextGridMode::LINES_AND_CHARS)
+        {
+            Insert( PROP_GRID_SNAP_TO_CHARS, uno::makeAny(m_bGridSnapToChars));
+        }
 
         sal_Int32 nCharWidth = 423; //240 twip/ 12 pt
         //todo: is '0' the right index here?
diff --git a/writerfilter/source/dmapper/PropertyMap.hxx b/writerfilter/source/dmapper/PropertyMap.hxx
index 55c7ceccb5aa..79b1f640b1bc 100644
--- a/writerfilter/source/dmapper/PropertyMap.hxx
+++ b/writerfilter/source/dmapper/PropertyMap.hxx
@@ -230,6 +230,7 @@ class SectionPropertyMap : public PropertyMap
     sal_Int32                               m_nGridType;
     sal_Int32                               m_nGridLinePitch;
     sal_Int32                               m_nDxtCharSpace;
+    bool                                    m_bGridSnapToChars;
 
     //line numbering
     sal_Int32                               m_nLnnMod;
@@ -312,6 +313,7 @@ public:
 
     void SetGridType(sal_Int32 nSet) { m_nGridType = nSet; }
     void SetGridLinePitch( sal_Int32 nSet ) { m_nGridLinePitch = nSet; }
+    void SetGridSnapToChars( bool bSet) { m_bGridSnapToChars = bSet; }
     void SetDxtCharSpace( sal_Int32 nSet ) { m_nDxtCharSpace = nSet; }
 
     void SetLnnMod( sal_Int32 nValue ) { m_nLnnMod = nValue; }