n#780645 DOCX import: add support for fixed column width

In general, DOCX tables provide a grid for the table, then use spans in
case different number of cells are used in different rows. In this case,
the cell width is ignored, as the wished width can be counted from the
grid and span values.

However, it's also valid to simply provide more cells then the amount
defined by the grid, and in this case the cell width should decide the
final width of the cells. This commit adds support for this later case.

Change-Id: I0dd6c1f0c06f81c2afa00489b7ad1f33ff300a7c

2 files changed, 72 insertions, 1 deletions

diff --git a/writerfilter/source/dmapper/DomainMapperTableManager.cxx b/writerfilter/source/dmapper/DomainMapperTableManager.cxx
index 085370024f23..afe9d6c829cf 100644
--- a/writerfilter/source/dmapper/DomainMapperTableManager.cxx
+++ b/writerfilter/source/dmapper/DomainMapperTableManager.cxx
@@ -16,6 +16,7 @@
  *   except in compliance with the License. You may obtain a copy of
  *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
  */
+#include <boost/optional.hpp>
 #include <DomainMapperTableManager.hxx>
 #include <resourcemodel/WW8ResourceModel.hxx>
 #include <BorderHandler.hxx>
@@ -51,6 +52,7 @@ DomainMapperTableManager::DomainMapperTableManager(bool bOOXML, bool bImplicitMe
     m_nTableWidth(0),
     m_bOOXML( bOOXML ),
     m_bImplicitMerges(bImplicitMerges),
+    m_bPushCurrentWidth(false),
     m_pTablePropsHandler( new TablePropertiesHandler( bOOXML ) )
 {
     m_pTablePropsHandler->SetTableManager( this );
@@ -282,7 +284,21 @@ bool DomainMapperTableManager::sprm(Sprm & rSprm)
                 break;
             }
             case NS_ooxml::LN_CT_TcPrBase_tcW:
-                break; //fixed column width is not supported
+                {
+                    // Contains unit and value, but unit is not interesting for
+                    // us, later we'll just distribute these values in a
+                    // 0..10000 scale.
+                    writerfilter::Reference<Properties>::Pointer_t pProperties = rSprm.getProps();
+                    if( pProperties.get())
+                    {
+                        MeasureHandlerPtr pMeasureHandler(new MeasureHandler());
+                        pProperties->resolve(*pMeasureHandler);
+                        getCurrentCellWidths()->push_back(pMeasureHandler->getMeasureValue());
+                        if (getTableDepthDifference() > 0)
+                            m_bPushCurrentWidth = true;
+                    }
+                }
+                break;
             case NS_ooxml::LN_CT_TrPrBase_cnfStyle:
                 {
                     TablePropertyMapPtr pProps( new TablePropertyMap );
@@ -338,6 +354,11 @@ boost::shared_ptr< vector< sal_Int32 > > DomainMapperTableManager::getCurrentSpa
     return m_aGridSpans.back( );
 }
 
+boost::shared_ptr< vector< sal_Int32 > > DomainMapperTableManager::getCurrentCellWidths( )
+{
+    return m_aCellWidths.back( );
+}
+
 const OUString& DomainMapperTableManager::getTableVertAnchor() const
 {
     return m_sTableVertAnchor;
@@ -347,18 +368,33 @@ void DomainMapperTableManager::startLevel( )
 {
     DomainMapperTableManager_Base_t::startLevel( );
 
+    // If requested, pop the value that was pushed too early.
+    boost::optional<sal_Int32> oCurrentWidth;
+    if (m_bPushCurrentWidth && !m_aCellWidths.empty() && !m_aCellWidths.back()->empty())
+    {
+        oCurrentWidth.reset(m_aCellWidths.back()->back());
+        m_aCellWidths.back()->pop_back();
+    }
+
     IntVectorPtr pNewGrid( new vector<sal_Int32> );
     IntVectorPtr pNewSpans( new vector<sal_Int32> );
+    IntVectorPtr pNewCellWidths( new vector<sal_Int32> );
     m_aTableGrid.push_back( pNewGrid );
     m_aGridSpans.push_back( pNewSpans );
+    m_aCellWidths.push_back( pNewCellWidths );
     m_nCell.push_back( 0 );
     m_nTableWidth = 0;
+
+    // And push it back to the right level.
+    if (oCurrentWidth)
+        m_aCellWidths.back()->push_back(*oCurrentWidth);
 }
 
 void DomainMapperTableManager::endLevel( )
 {
     m_aTableGrid.pop_back( );
     m_aGridSpans.pop_back( );
+    m_aCellWidths.pop_back( );
     m_nCell.pop_back( );
     m_nTableWidth = 0;
 
@@ -394,6 +430,7 @@ void DomainMapperTableManager::endOfRowAction()
 #endif
 
     IntVectorPtr pTableGrid = getCurrentGrid( );
+    IntVectorPtr pCellWidths = getCurrentCellWidths( );
     if(!m_nTableWidth && pTableGrid->size())
     {
         ::std::vector<sal_Int32>::const_iterator aCellIter = pTableGrid->begin();
@@ -523,11 +560,40 @@ void DomainMapperTableManager::endOfRowAction()
 #endif
         insertRowProps(pPropMap);
     }
+    else if (pCellWidths->size() > 0)
+    {
+        // If we're here, then the number of cells does not equal to the amount
+        // defined by the grid, even after taking care of
+        // gridSpan/gridBefore/gridAfter. Handle this by ignoring the grid and
+        // providing the separators based on the provided cell widths.
+        uno::Sequence< text::TableColumnSeparator > aSeparators(pCellWidths->size() - 1);
+        text::TableColumnSeparator* pSeparators = aSeparators.getArray();
+        sal_Int16 nSum = 0;
+        sal_uInt32 nPos = 0;
+
+        for (sal_uInt32 i = 0; i < pCellWidths->size() - 1; ++i)
+        {
+            nSum += (*pCellWidths.get())[i];
+            pSeparators[nPos].Position = nSum * nFullWidthRelative / nFullWidth;
+            pSeparators[nPos].IsVisible = sal_True;
+            nPos++;
+        }
+
+        TablePropertyMapPtr pPropMap( new TablePropertyMap );
+        pPropMap->Insert( PROP_TABLE_COLUMN_SEPARATORS, false, uno::makeAny( aSeparators ) );
+#ifdef DEBUG_DOMAINMAPPER
+        dmapper_logger->startElement("rowProperties");
+        pPropMap->dumpXml( dmapper_logger );
+        dmapper_logger->endElement();
+#endif
+        insertRowProps(pPropMap);
+    }
 
     ++m_nRow;
     m_nCell.back( ) = 0;
     m_nCellBorderIndex = 0;
     pCurrentSpans->clear();
+    pCellWidths->clear();
 
     m_nGridBefore = m_nGridAfter = 0;
 
diff --git a/writerfilter/source/dmapper/DomainMapperTableManager.hxx b/writerfilter/source/dmapper/DomainMapperTableManager.hxx
index 7f3215c73f74..e7965bd05a94 100644
--- a/writerfilter/source/dmapper/DomainMapperTableManager.hxx
+++ b/writerfilter/source/dmapper/DomainMapperTableManager.hxx
@@ -50,6 +50,10 @@ class DomainMapperTableManager : public DomainMapperTableManager_Base_t
 
     ::std::vector< IntVectorPtr >  m_aTableGrid;
     ::std::vector< IntVectorPtr >  m_aGridSpans;
+    /// If this is true, then we pushed a width before the next level started, and that should be carried over when starting the next level.
+    bool            m_bPushCurrentWidth;
+    /// Individual table cell width values, used only in case the number of cells doesn't match the table grid.
+    ::std::vector< IntVectorPtr >  m_aCellWidths;
 
     TablePropertiesHandler   *m_pTablePropsHandler;
     PropertyMapPtr            m_pStyleProps;
@@ -75,6 +79,7 @@ public:
 
     IntVectorPtr getCurrentGrid( );
     IntVectorPtr getCurrentSpans( );
+    IntVectorPtr getCurrentCellWidths( );
 
     const OUString& getTableStyleName() const { return m_sTableStyleName; }
     const OUString& getTableVertAnchor() const;