tdf#104349, tdf#104668 MS Word compatibility trailing blanks option

The commits: 1c1747ac and 4a410dd1
make trailing spaces and their highlighting compatible with the Ms Word.

The option is enabled by default for imported MS Word formats: .doc, .docx, .rtf
For the ODF files the option is disabled by default

Also it allows saving and loading the option state to the ODF UserData.

It may be manually set in Tools->Options->LibreOffice Writer->Compatibility

Change-Id: I5a86359c52d18e50bbb54b9f37c79b672591c369
Reviewed-on: https://gerrit.libreoffice.org/33046Reviewed-by: Mike Kaganski <mike.kaganski@collabora.com>
Tested-by: Mike Kaganski <mike.kaganski@collabora.com>

include/sfx2/objsh.hxx

@@ -461,6 +461,9 @@ public:
     // Transfer IFace
     bool                        IsAbortingImport() const;
     void                        FinishedLoading( SfxLoadedFlags nWhich = SfxLoadedFlags::ALL );
+
+    virtual void                SetFormatSpecificCompatibilityOptions( const OUString& /*rFilterTypeName*/ ) { /* Do not do anything here; Derived classes must overload to do actual work */ };
+
     void                        TemplateDisconnectionAfterLoad();
     bool                        IsLoading() const;
     bool                        IsLoadingFinished() const;

sfx2/source/doc/objmisc.cxx

@@ -1083,6 +1083,12 @@ void SfxObjectShell::InitOwnModel_Impl()
 
 void SfxObjectShell::FinishedLoading( SfxLoadedFlags nFlags )
 {
+    std::shared_ptr<const SfxFilter> pFlt = pMedium->GetFilter();
+    if( pFlt )
+    {
+        SetFormatSpecificCompatibilityOptions( pFlt->GetTypeName() );
+    }
+
     bool bSetModifiedTRUE = false;
     const SfxStringItem* pSalvageItem = SfxItemSet::GetItem<SfxStringItem>(pMedium->GetItemSet(), SID_DOC_SALVAGE, false);
     if( ( nFlags & SfxLoadedFlags::MAINDOCUMENT ) && !(pImpl->nLoadedFlags & SfxLoadedFlags::MAINDOCUMENT )
@@ -1171,7 +1177,6 @@ void SfxObjectShell::FinishedLoading( SfxLoadedFlags nFlags )
     }
 }
 
-
 void SfxObjectShell::TemplateDisconnectionAfterLoad()
 {
     // document is created from a template

sw/inc/IDocumentSettingAccess.hxx

@@ -61,6 +61,9 @@ enum class DocumentSettingId
     IGNORE_TABS_AND_BLANKS_FOR_LINE_CALCULATION,
     CLIP_AS_CHARACTER_ANCHORED_WRITER_FLY_FRAME,
 
+    // tdf#104349 tdf#104668
+    MS_WORD_COMP_TRAILING_BLANKS,
+
     UNIX_FORCE_ZERO_EXT_LEADING,
     TABS_RELATIVE_TO_INDENT,
     PROTECT_FORM,

sw/inc/docsh.hxx

@@ -265,6 +265,7 @@ public:
      the load of document being finished. */
 
     void LoadingFinished();
+    virtual void SetFormatSpecificCompatibilityOptions( const OUString& rFilterTypeName ) override;
 
     /// Cancel transfer (called from SFX).
     virtual void CancelTransfers() override;

sw/inc/viewsh.hxx

@@ -416,6 +416,8 @@ public:
 
     void SetProtectForm( bool _bProtectForm );
 
+    void SetMsWordCompTrailingBlanks( bool _bMsWordCompTrailingBlanks );
+
     // DOCUMENT COMPATIBILITY FLAGS END
 
     // Calls Idle-formatter of Layout.

sw/source/core/doc/DocumentSettingManager.cxx

@@ -72,6 +72,7 @@ sw::DocumentSettingManager::DocumentSettingManager(SwDoc &rDoc)
     mbUnixForceZeroExtLeading(false),
     mbTabRelativeToIndent(true),
     mbProtectForm(false), // i#78591#
+    mbMsWordCompTrailingBlanks(false), // tdf#104349 tdf#104668
     mbInvertBorderSpacing (false),
     mbCollapseEmptyCellPara(true),
     mbTabAtLeftIndentForParagraphsInList(false), //#i89181#
@@ -166,6 +167,8 @@ bool sw::DocumentSettingManager::get(/*[in]*/ DocumentSettingId id) const
         case DocumentSettingId::UNIX_FORCE_ZERO_EXT_LEADING: return mbUnixForceZeroExtLeading;
         case DocumentSettingId::TABS_RELATIVE_TO_INDENT : return mbTabRelativeToIndent;
         case DocumentSettingId::PROTECT_FORM: return mbProtectForm;
+        // tdf#104349 tdf#104668
+        case DocumentSettingId::MS_WORD_COMP_TRAILING_BLANKS: return mbMsWordCompTrailingBlanks;
         // #i89181#
         case DocumentSettingId::TAB_AT_LEFT_INDENT_FOR_PARA_IN_LIST: return mbTabAtLeftIndentForParagraphsInList;
         case DocumentSettingId::INVERT_BORDER_SPACING: return mbInvertBorderSpacing;
@@ -301,6 +304,11 @@ void sw::DocumentSettingManager::set(/*[in]*/ DocumentSettingId id, /*[in]*/ boo
             mbProtectForm = value;
             break;
 
+        // tdf#140349
+        case DocumentSettingId::MS_WORD_COMP_TRAILING_BLANKS:
+            mbMsWordCompTrailingBlanks = value;
+            break;
+
         case DocumentSettingId::TABS_RELATIVE_TO_INDENT:
             mbTabRelativeToIndent = value;
             break;
@@ -553,6 +561,7 @@ void sw::DocumentSettingManager::ReplaceCompatibilityOptions(const DocumentSetti
     mbUnixForceZeroExtLeading = rSource.mbUnixForceZeroExtLeading;
     mbTabRelativeToIndent = rSource.mbTabRelativeToIndent;
     mbTabAtLeftIndentForParagraphsInList = rSource.mbTabAtLeftIndentForParagraphsInList;
+    mbMsWordCompTrailingBlanks = rSource.mbMsWordCompTrailingBlanks;
 }
 
 sal_uInt32 sw::DocumentSettingManager::Getn32DummyCompatibilityOptions1() const

sw/source/core/inc/DocumentSettingManager.hxx

@@ -138,6 +138,7 @@ class DocumentSettingManager :
     bool mbUnixForceZeroExtLeading                  : 1;   // #i60945#
     bool mbTabRelativeToIndent                      : 1;   // #i24363# tab stops relative to indent
     bool mbProtectForm                              : 1;
+    bool mbMsWordCompTrailingBlanks                 : 1;   // tdf#104349 tdf#104668
     bool mbInvertBorderSpacing                      : 1;
     bool mbCollapseEmptyCellPara                    : 1;
     bool mbTabAtLeftIndentForParagraphsInList;             // #i89181# - see above

sw/source/core/text/guess.cxx

@@ -75,23 +75,30 @@ bool SwTextGuess::Guess( const SwTextPortion& rPor, SwTextFormatInfo &rInf,
 
     const SvxAdjust& rAdjust = rInf.GetTextFrame()->GetTextNode()->GetSwAttrSet().GetAdjust().GetAdjust();
 
-    // tdf#104668 space chars at the end should be cut
-    if ( rAdjust == SVX_ADJUST_RIGHT || rAdjust == SVX_ADJUST_CENTER )
+    // tdf#104668 space chars at the end should be cut if the compatibility option is enabled
+    // for LTR mode only
+    if ( !rInf.GetTextFrame()->IsRightToLeft() )
     {
-        sal_Int32 nSpaceCnt = 0;
-        for ( int i = (rInf.GetText().getLength() - 1); i >= rInf.GetIdx(); --i )
+        if ( rInf.GetTextFrame()->GetNode()->getIDocumentSettingAccess()->get( DocumentSettingId::MS_WORD_COMP_TRAILING_BLANKS ) )
         {
-            sal_Unicode cChar = rInf.GetText()[i];
-            if ( cChar != CH_BLANK && cChar != CH_FULL_BLANK )
-                break;
-            ++nSpaceCnt;
-        }
-        sal_Int32 nCharsCnt = nMaxLen - nSpaceCnt;
-        if ( nSpaceCnt && nCharsCnt < rPor.GetLen() )
-        {
-            nMaxLen = nCharsCnt;
-            if ( !nMaxLen )
-                return true;
+            if ( rAdjust == SVX_ADJUST_RIGHT || rAdjust == SVX_ADJUST_CENTER )
+            {
+                sal_Int32 nSpaceCnt = 0;
+                for ( int i = (rInf.GetText().getLength() - 1); i >= rInf.GetIdx(); --i )
+                {
+                    sal_Unicode cChar = rInf.GetText()[i];
+                    if ( cChar != CH_BLANK && cChar != CH_FULL_BLANK )
+                        break;
+                    ++nSpaceCnt;
+                }
+                sal_Int32 nCharsCnt = nMaxLen - nSpaceCnt;
+                if ( nSpaceCnt && nCharsCnt < rPor.GetLen() )
+                {
+                    nMaxLen = nCharsCnt;
+                    if ( !nMaxLen )
+                        return true;
+                }
+            }
         }
     }
 

sw/source/core/text/inftxt.cxx

@@ -1182,71 +1182,78 @@ void SwTextPaintInfo::DrawBackBrush( const SwLinePortion &rPor ) const
             aFillColor = *m_pFnt->GetBackColor();
         }
 
-        // tdf#104349 do not hightlight portions of space chars before end of line
-        bool           draw = false;
-        bool           full = false;
-        SwLinePortion *pPos = const_cast<SwLinePortion *>(&rPor);
-        sal_Int32      nIdx = GetIdx();
-        sal_Int32      nLen;
-
-        do
+        // tdf#104349 do not hightlight portions of space chars before end of line if the compatibility option is enabled
+        // for LTR mode only
+        if ( !GetTextFrame()->IsRightToLeft() )
         {
-            nLen = pPos->GetLen();
-            for ( int i = nIdx; i < (nIdx + nLen); ++i )
+            if ( GetTextFrame()->GetNode()->getIDocumentSettingAccess()->get( DocumentSettingId::MS_WORD_COMP_TRAILING_BLANKS ) )
             {
-                if (i < GetText().getLength() && GetText()[i] == CH_TXTATR_NEWLINE)
-                {
-                    if ( i >= (GetIdx() + rPor.GetLen()) )
-                    {
-                        goto drawcontinue;
-                    }
-                }
-                if (i >= GetText().getLength() || GetText()[i] != CH_BLANK)
+                bool           draw = false;
+                bool           full = false;
+                SwLinePortion *pPos = const_cast<SwLinePortion *>(&rPor);
+                sal_Int32      nIdx = GetIdx();
+                sal_Int32      nLen;
+
+                do
                 {
-                    draw = true;
-                    if ( i >= (GetIdx() + rPor.GetLen()) )
+                    nLen = pPos->GetLen();
+                    for ( int i = nIdx; i < (nIdx + nLen); ++i )
                     {
-                        full = true;
-                        goto drawcontinue;
+                        if ( i < GetText().getLength() && GetText()[i] == CH_TXTATR_NEWLINE )
+                        {
+                            if ( i >= (GetIdx() + rPor.GetLen()) )
+                            {
+                                goto drawcontinue;
+                            }
+                        }
+                        if ( i >= GetText().getLength() || GetText()[i] != CH_BLANK )
+                        {
+                            draw = true;
+                            if ( i >= (GetIdx() + rPor.GetLen()) )
+                            {
+                                full = true;
+                                goto drawcontinue;
+                            }
+                        }
                     }
-                }
-            }
-            nIdx += nLen;
-            pPos = pPos->GetPortion();
-        } while ( pPos );
+                    nIdx += nLen;
+                    pPos = pPos->GetPortion();
+                } while ( pPos );
 
-        drawcontinue:
+            drawcontinue:
 
-        if ( !draw )
-            return;
-
-        if ( !full )
-        {
-            pPos = const_cast<SwLinePortion *>(&rPor);
-            nIdx = GetIdx();
+                if ( !draw )
+                    return;
 
-            nLen = pPos->GetLen();
-            for ( int i = (nIdx + nLen - 1); i >= nIdx; --i )
-            {
-                if (i < GetText().getLength() && GetText()[i] == CH_TXTATR_NEWLINE)
-                {
-                    continue;
-                }
-                if (i >= GetText().getLength() || GetText()[i] != CH_BLANK)
+                if ( !full )
                 {
-                    sal_uInt16 nOldWidth = rPor.Width();
-                    sal_uInt16 nNewWidth = GetTextSize( m_pOut, nullptr, GetText(), nIdx, (i + 1 - nIdx) ).Width();
-
-                    const_cast<SwLinePortion&>(rPor).Width( nNewWidth );
-                    CalcRect( rPor, nullptr, &aIntersect, true );
-                    const_cast<SwLinePortion&>(rPor).Width( nOldWidth );
+                    pPos = const_cast<SwLinePortion *>(&rPor);
+                    nIdx = GetIdx();
 
-                    if ( ! aIntersect.HasArea() )
+                    nLen = pPos->GetLen();
+                    for ( int i = (nIdx + nLen - 1); i >= nIdx; --i )
                     {
-                        return;
-                    }
+                        if ( i < GetText().getLength() && GetText()[i] == CH_TXTATR_NEWLINE )
+                        {
+                            continue;
+                        }
+                        if ( i >= GetText().getLength() || GetText()[i] != CH_BLANK )
+                        {
+                            sal_uInt16 nOldWidth = rPor.Width();
+                            sal_uInt16 nNewWidth = GetTextSize( m_pOut, nullptr, GetText(), nIdx, (i + 1 - nIdx) ).Width();
 
-                    break;
+                            const_cast<SwLinePortion&>(rPor).Width( nNewWidth );
+                            CalcRect( rPor, nullptr, &aIntersect, true );
+                            const_cast<SwLinePortion&>(rPor).Width( nOldWidth );
+
+                            if ( !aIntersect.HasArea() )
+                            {
+                                return;
+                            }
+
+                            break;
+                        }
+                    }
                 }
             }
         }

sw/source/core/view/viewsh.cxx

@@ -904,6 +904,17 @@ void SwViewShell::SetProtectForm( bool _bProtectForm )
     rIDSA.set(DocumentSettingId::PROTECT_FORM, _bProtectForm );
 }
 
+void SwViewShell::SetMsWordCompTrailingBlanks( bool _bMsWordCompTrailingBlanks )
+{
+    IDocumentSettingAccess& rIDSA = getIDocumentSettingAccess();
+    if (rIDSA.get(DocumentSettingId::MS_WORD_COMP_TRAILING_BLANKS) != _bMsWordCompTrailingBlanks)
+    {
+        SwWait aWait(*GetDoc()->GetDocShell(), true);
+        rIDSA.set(DocumentSettingId::MS_WORD_COMP_TRAILING_BLANKS, _bMsWordCompTrailingBlanks);
+        const SwInvalidateFlags nInv = SwInvalidateFlags::PrtArea | SwInvalidateFlags::Size | SwInvalidateFlags::Table | SwInvalidateFlags::Section;
+        lcl_InvalidateAllContent(*this, nInv);
+    }
+}
 
 void SwViewShell::Reformat()
 {

sw/source/uibase/app/docsh.cxx

@@ -1156,6 +1156,20 @@ void SwDocShell::LoadingFinished()
     }
 }
 
+void SwDocShell::SetFormatSpecificCompatibilityOptions( const OUString& rFilterTypeName )
+{
+    //Enable MS Word-compatibility trailing blanks option for MS Word files
+    if ( rFilterTypeName == "writer_MS_Word_95" ||
+         rFilterTypeName == "writer_MS_Word_97" ||
+         rFilterTypeName == "writer_MS_Word_2003_XML" ||
+         rFilterTypeName == "writer_MS_Word_2007" ||
+         rFilterTypeName == "writer_MS_Word_2007_Template" ||
+         rFilterTypeName == "writer_Rich_Text_Format" )
+    {
+        GetDoc()->getIDocumentSettingAccess().set( DocumentSettingId::MS_WORD_COMP_TRAILING_BLANKS, true );
+    }
+}
+
 // a Transfer is cancelled (is called from SFX)
 void SwDocShell::CancelTransfers()
 {

sw/source/uibase/uiview/view.cxx

@@ -1259,11 +1259,13 @@ void SwView::ReadUserDataSequence ( const uno::Sequence < beans::PropertyValue >
         sal_Int16 nViewLayoutColumns = pVOpt->GetViewLayoutColumns();
 
         bool bSelectedFrame = ( m_pWrtShell->GetSelFrameType() != FrameTypeFlags::NONE ),
+             bMsWordCompTrailingBlanks = false,
                  bGotVisibleLeft = false,
                  bGotVisibleTop = false, bGotVisibleRight = false,
                  bGotVisibleBottom = false, bGotZoomType = false,
                  bGotZoomFactor = false, bGotIsSelectedFrame = false,
-                 bGotViewLayoutColumns = false, bGotViewLayoutBookMode = false;
+                 bGotViewLayoutColumns = false, bGotViewLayoutBookMode = false,
+                 bGotMsWordCompTrailingBlanks = false;
 
         for (sal_Int32 i = 0 ; i < nLength; i++)
         {
@@ -1326,6 +1328,11 @@ void SwView::ReadUserDataSequence ( const uno::Sequence < beans::PropertyValue >
                pValue->Value >>= bSelectedFrame;
                bGotIsSelectedFrame = true;
             }
+            else if ( pValue->Name == "MsWordCompTrailingBlanks" )
+            {
+                pValue->Value >>= bMsWordCompTrailingBlanks;
+                bGotMsWordCompTrailingBlanks = true;
+            }
             // Fallback to common SdrModel processing
             else GetDocShell()->GetDoc()->getIDocumentDrawModelAccess().GetDrawModel()->ReadUserDataSequenceValue(pValue);
             pValue++;
@@ -1452,6 +1459,10 @@ void SwView::ReadUserDataSequence ( const uno::Sequence < beans::PropertyValue >
                 m_pWrtShell->EnableSmooth( true );
             }
         }
+        if ( bGotMsWordCompTrailingBlanks )
+        {
+            GetDocShell()->GetDoc()->getIDocumentSettingAccess().set( DocumentSettingId::MS_WORD_COMP_TRAILING_BLANKS, bMsWordCompTrailingBlanks );
+        }
     }
 }
 
@@ -1491,6 +1502,8 @@ void SwView::WriteUserDataSequence ( uno::Sequence < beans::PropertyValue >& rSe
 
     aVector.push_back(comphelper::makePropertyValue("IsSelectedFrame", FrameTypeFlags::NONE != m_pWrtShell->GetSelFrameType()));
 
+    aVector.push_back(comphelper::makePropertyValue("MsWordCompTrailingBlanks", GetDocShell()->GetDoc()->getIDocumentSettingAccess().get( DocumentSettingId::MS_WORD_COMP_TRAILING_BLANKS )));
+
     rSequence = comphelper::containerToSequence(aVector);
 
     // Common SdrModel processing