tdf#91920 sw page gutter margin: add DOC filter

Map between sprmSDzaGutter and SvxLRSpaceItem::m_nGutterMargin, but
leave the fRTLGutter and iGutterPos cases alone for now.

(cherry picked from commit 5e6f79348c2df12c8793e3c5cb943a86f9e47cc5)

Conflicts:
	sw/qa/extras/ww8export/ww8export3.cxx

Change-Id: I6f2ede619a8ea47404c4c37480b0e6d886cf5fce
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/110628
Tested-by: Jenkins CollaboraOffice <jenkinscollaboraoffice@gmail.com>
Reviewed-by: Miklos Vajna <vmiklos@collabora.com>

5 files changed, 35 insertions, 5 deletions

diff --git a/sw/qa/extras/ww8export/data/gutter-left.doc b/sw/qa/extras/ww8export/data/gutter-left.doc
new file mode 100644
index 000000000000..0d76e8748699
--- /dev/null
+++ b/sw/qa/extras/ww8export/data/gutter-left.doc
diff --git a/sw/qa/extras/ww8export/ww8export3.cxx b/sw/qa/extras/ww8export/ww8export3.cxx
index e8d3aaec215f..eca50addbe46 100644
--- a/sw/qa/extras/ww8export/ww8export3.cxx
+++ b/sw/qa/extras/ww8export/ww8export3.cxx
@@ -57,6 +57,19 @@ DECLARE_WW8EXPORT_TEST(testTdf37778_readonlySection, "tdf37778_readonlySection.d
     CPPUNIT_ASSERT_EQUAL_MESSAGE("Last printed date", sal_Int16(2009), xDPS->getDocumentProperties()->getPrintDate().Year);
 }
 
+DECLARE_WW8EXPORT_TEST(testGutterLeft, "gutter-left.doc")
+{
+    uno::Reference<beans::XPropertySet> xPageStyle;
+    getStyles("PageStyles")->getByName("Standard") >>= xPageStyle;
+    sal_Int32 nGutterMargin{};
+    xPageStyle->getPropertyValue("GutterMargin") >>= nGutterMargin;
+    // Without the accompanying fix in place, this test would have failed with:
+    // - Expected: 1270
+    // - Actual  : 0
+    // i.e. gutter margin was lost.
+    CPPUNIT_ASSERT_EQUAL(static_cast<sal_Int32>(1270), nGutterMargin);
+}
+
 DECLARE_WW8EXPORT_TEST(testArabicZeroNumbering, "arabic-zero-numbering.doc")
 {
     auto xNumberingRules
diff --git a/sw/source/filter/ww8/ww8atr.cxx b/sw/source/filter/ww8/ww8atr.cxx
index bea6090df892..eb5d42253024 100644
--- a/sw/source/filter/ww8/ww8atr.cxx
+++ b/sw/source/filter/ww8/ww8atr.cxx
@@ -4074,6 +4074,7 @@ void WW8AttributeOutput::FormatLRSpace( const SvxLRSpaceItem& rLR )
 
         m_pageMargins.nLeft += sal::static_int_cast<sal_uInt16>(rLR.GetLeft());
         m_pageMargins.nRight += sal::static_int_cast<sal_uInt16>(rLR.GetRight());
+        sal_uInt16 nGutter = rLR.GetGutterMargin();
 
         // sprmSDxaLeft
         m_rWW8Export.InsUInt16( NS_sprm::sprmSDxaLeft );
@@ -4082,6 +4083,13 @@ void WW8AttributeOutput::FormatLRSpace( const SvxLRSpaceItem& rLR )
         // sprmSDxaRight
         m_rWW8Export.InsUInt16( NS_sprm::sprmSDxaRight );
         m_rWW8Export.InsUInt16( m_pageMargins.nRight );
+
+        if (nGutter)
+        {
+            // sprmSDzaGutter
+            m_rWW8Export.InsUInt16(NS_sprm::sprmSDzaGutter);
+            m_rWW8Export.InsUInt16(nGutter);
+        }
     }
     else
     {                                          // normal paragraphs
diff --git a/sw/source/filter/ww8/ww8par.hxx b/sw/source/filter/ww8/ww8par.hxx
index d178bbbeda9a..b2f4a12db1b9 100644
--- a/sw/source/filter/ww8/ww8par.hxx
+++ b/sw/source/filter/ww8/ww8par.hxx
@@ -794,6 +794,7 @@ public:
     sal_uInt32 nPgWidth;
     sal_uInt32 nPgLeft;
     sal_uInt32 nPgRight;
+    sal_uInt32 nPgGutter;
 
     css::drawing::TextVerticalAdjust mnVerticalAdjustment;
     sal_uInt8 mnBorders;
@@ -810,7 +811,7 @@ public:
     bool IsBiDi() const { return maSep.fBiDi != 0; }
     sal_uInt32 GetPageWidth() const { return nPgWidth; }
     sal_uInt32 GetTextAreaWidth() const
-        { return GetPageWidth() - GetPageLeft() - GetPageRight(); }
+        { return GetPageWidth() - GetPageLeft() - nPgGutter - GetPageRight(); }
     sal_uInt32 GetPageHeight() const { return maSep.yaPage; }
     sal_uInt32 GetPageLeft() const { return nPgLeft; }
     sal_uInt32 GetPageRight() const { return nPgRight; }
diff --git a/sw/source/filter/ww8/ww8par6.cxx b/sw/source/filter/ww8/ww8par6.cxx
index 634ac5131b0c..4a8821f678f8 100644
--- a/sw/source/filter/ww8/ww8par6.cxx
+++ b/sw/source/filter/ww8/ww8par6.cxx
@@ -477,9 +477,14 @@ void wwSectionManager::SetLeftRight(wwSection &rSection)
     case is handled in GetPageULData.
     */
     if (rSection.maSep.fRTLGutter)
+    {
         nWWRi += nWWGu;
-    else if (!mrReader.m_xWDop->iGutterPos)
-        nWWLe += nWWGu;
+        nWWGu = 0;
+    }
+    else if (mrReader.m_xWDop->iGutterPos)
+    {
+        nWWGu = 0;
+    }
 
     // Left / Right
     if ((rSection.nPgWidth - nWWLe - nWWRi) < MINLAY)
@@ -502,6 +507,7 @@ void wwSectionManager::SetLeftRight(wwSection &rSection)
 
     rSection.nPgLeft = nWWLe;
     rSection.nPgRight = nWWRi;
+    rSection.nPgGutter = nWWGu;
 }
 
 void wwSectionManager::SetPage(SwPageDesc &rInPageDesc, SwFrameFormat &rFormat,
@@ -516,8 +522,9 @@ void wwSectionManager::SetPage(SwPageDesc &rInPageDesc, SwFrameFormat &rFormat,
     aSz.SetHeight(SvxPaperInfo::GetSloppyPaperDimension(rSection.GetPageHeight()));
     rFormat.SetFormatAttr(aSz);
 
-    rFormat.SetFormatAttr(
-        SvxLRSpaceItem(rSection.GetPageLeft(), rSection.GetPageRight(), 0, 0, RES_LR_SPACE));
+    SvxLRSpaceItem aLR(rSection.GetPageLeft(), rSection.GetPageRight(), 0, 0, RES_LR_SPACE);
+    aLR.SetGutterMargin(rSection.nPgGutter);
+    rFormat.SetFormatAttr(aLR);
 
     if (!bIgnoreCols)
         SetCols(rFormat, rSection, rSection.GetTextAreaWidth());
@@ -810,6 +817,7 @@ wwSection::wwSection(const SwPosition &rPos) : maStart(rPos.nNode)
     , nPgWidth(SvxPaperInfo::GetPaperSize(PAPER_A4).Width())
     , nPgLeft(MM_250)
     , nPgRight(MM_250)
+    , nPgGutter(0)
     , mnVerticalAdjustment(drawing::TextVerticalAdjust_TOP)
     , mnBorders(0)
     , mbHasFootnote(false)