sc/qa/unit/data/xlsx/tdf151755_stylesLostOnXLSXExport.xlsx |binary
 sc/qa/unit/subsequent_export_test2.cxx                     |   23 +++++++++++++
 sc/source/filter/excel/xetable.cxx                         |    8 ++--
 3 files changed, 28 insertions(+), 3 deletions(-)

New commits:
commit 9934947c36bf1a1e548f667c72fba1891bbb2cff
Author:     Attila Szűcs <[email protected]>
AuthorDate: Tue Nov 29 09:45:36 2022 +0100
Commit:     Andras Timar <[email protected]>
CommitDate: Tue Dec 13 15:51:35 2022 +0000

    tdf#151755 fix export of borders of contentless cells
    
    Change-Id: I650aeebb4d021911c1f14d4867c5beee84020155
    Reviewed-on: https://gerrit.libreoffice.org/c/core/+/143431
    Tested-by: Jenkins CollaboraOffice <[email protected]>
    Reviewed-by: Andras Timar <[email protected]>

diff --git a/sc/qa/unit/data/xlsx/tdf151755_stylesLostOnXLSXExport.xlsx 
b/sc/qa/unit/data/xlsx/tdf151755_stylesLostOnXLSXExport.xlsx
new file mode 100644
index 000000000000..e48562022af8
Binary files /dev/null and 
b/sc/qa/unit/data/xlsx/tdf151755_stylesLostOnXLSXExport.xlsx differ
diff --git a/sc/qa/unit/subsequent_export_test2.cxx 
b/sc/qa/unit/subsequent_export_test2.cxx
index c958f40402ef..bcf262dd42e9 100644
--- a/sc/qa/unit/subsequent_export_test2.cxx
+++ b/sc/qa/unit/subsequent_export_test2.cxx
@@ -204,6 +204,7 @@ public:
     void testTdf142854_GridVisibilityImportXlsxInHeadlessMode();
     void testTdf144642_RowHeightRounding();
     void testTdf145129_DefaultRowHeightRounding();
+    void testTdf151755_stylesLostOnXLSXExport();
     void testTdf140431();
     void testCheckboxFormControlXlsxExport();
     void testButtonFormControlXlsxExport();
@@ -322,6 +323,7 @@ public:
     CPPUNIT_TEST(testTdf142854_GridVisibilityImportXlsxInHeadlessMode);
     CPPUNIT_TEST(testTdf144642_RowHeightRounding);
     CPPUNIT_TEST(testTdf145129_DefaultRowHeightRounding);
+    CPPUNIT_TEST(testTdf151755_stylesLostOnXLSXExport);
     CPPUNIT_TEST(testTdf140431);
     CPPUNIT_TEST(testCheckboxFormControlXlsxExport);
     CPPUNIT_TEST(testButtonFormControlXlsxExport);
@@ -2605,6 +2607,27 @@ void 
ScExportTest2::testTdf145129_DefaultRowHeightRounding()
     xShell->DoClose();
 }
 
+void ScExportTest2::testTdf151755_stylesLostOnXLSXExport()
+{
+    // Check if empty cells with custom sytle are exported, even if
+    // there is other empty cells with default style, left of it.
+    ScDocShellRef pShell = loadDoc(u"tdf151755_stylesLostOnXLSXExport.", 
FORMAT_XLSX);
+
+    // Resave the xlsx file without any modification.
+    std::shared_ptr<utl::TempFile> pXPathFile = 
ScBootstrapFixture::exportTo(*pShell, FORMAT_XLSX);
+    xmlDocUniquePtr pSheet
+        = XPathHelper::parseExport(pXPathFile, m_xSFactory, 
"xl/worksheets/sheet1.xml");
+    CPPUNIT_ASSERT(pSheet);
+
+    // Check if all the 3 empty cells with styles are saved, and have the same 
style id.
+    assertXPath(pSheet, "/x:worksheet/x:sheetData/x:row[4]/x:c", 4);
+    OUString aCellStyleId = getXPath(pSheet, 
"/x:worksheet/x:sheetData/x:row[4]/x:c[2]", "s");
+    assertXPath(pSheet, "/x:worksheet/x:sheetData/x:row[4]/x:c[2]", "s", 
aCellStyleId);
+    assertXPath(pSheet, "/x:worksheet/x:sheetData/x:row[4]/x:c[3]", "s", 
aCellStyleId);
+    assertXPath(pSheet, "/x:worksheet/x:sheetData/x:row[4]/x:c[4]", "s", 
aCellStyleId);
+    pShell->DoClose();
+}
+
 void ScExportTest2::testTdf140431()
 {
     ScDocShellRef xShell = loadDoc(u"129969-min.", FORMAT_XLSX);
diff --git a/sc/source/filter/excel/xetable.cxx 
b/sc/source/filter/excel/xetable.cxx
index dcbcba7251bb..804c09bd447f 100644
--- a/sc/source/filter/excel/xetable.cxx
+++ b/sc/source/filter/excel/xetable.cxx
@@ -1310,12 +1310,14 @@ void XclExpMultiCellBase::RemoveUnusedXFIndexes( const 
ScfUInt16Vec& rXFIndexes,
 sal_uInt16 XclExpMultiCellBase::GetStartColAllDefaultCell() const
 {
     sal_uInt16 col = GetXclCol();
+    sal_uInt16 nMaxNonDefCol = col;
     for( const auto& rXFId : maXFIds )
     {
-        if( rXFId.mnXFIndex != EXC_XF_DEFAULTCELL )
-            col += rXFId.mnCount;
+        col += rXFId.mnCount;
+        if (rXFId.mnXFIndex != EXC_XF_DEFAULTCELL)
+            nMaxNonDefCol = col;
     }
-    return col;
+    return nMaxNonDefCol;
 }
 
 XclExpBlankCell::XclExpBlankCell( const XclAddress& rXclPos, const 
XclExpMultiXFId& rXFId ) :

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