sc/qa/unit/data/ods/updateCircleInMergedCell.ods |binary
 sc/qa/unit/subsequent_filters-test.cxx           |   35 +++++++++++++++++++++++
 sc/source/core/tool/detfunc.cxx                  |    9 +++--
 sc/source/ui/docshell/docfunc.cxx                |    8 +++++
 sc/source/ui/inc/docfunc.hxx                     |    3 +
 5 files changed, 51 insertions(+), 4 deletions(-)

New commits:
commit 3741b90abe478fb04db88207b496a5238df35bb8
Author:     Tibor Nagy <nagy.tib...@nisz.hu>
AuthorDate: Thu Nov 26 14:20:14 2020 +0100
Commit:     László Németh <nem...@numbertext.org>
CommitDate: Mon Nov 30 14:23:25 2020 +0100

    tdf#138483 sc: update red circles after merging cells
    
    If there are detective circles on the cells and these cells are merged,
    the merged cell keeps all red circles instead of removed them except
    the circle of merged cell.
    
    Co-authored-by: Attila Szűcs (NISZ)
    
    Change-Id: I39c76cbb7c41affb0a18e5e82923945a2d41795d
    Reviewed-on: https://gerrit.libreoffice.org/c/core/+/106698
    Tested-by: László Németh <nem...@numbertext.org>
    Reviewed-by: László Németh <nem...@numbertext.org>

diff --git a/sc/qa/unit/data/ods/updateCircleInMergedCell.ods 
b/sc/qa/unit/data/ods/updateCircleInMergedCell.ods
new file mode 100644
index 000000000000..93be82487e22
Binary files /dev/null and b/sc/qa/unit/data/ods/updateCircleInMergedCell.ods 
differ
diff --git a/sc/qa/unit/subsequent_filters-test.cxx 
b/sc/qa/unit/subsequent_filters-test.cxx
index 9c087549ec3e..2ef3cf4fb326 100644
--- a/sc/qa/unit/subsequent_filters-test.cxx
+++ b/sc/qa/unit/subsequent_filters-test.cxx
@@ -65,6 +65,8 @@
 #include <stlpool.hxx>
 #include <hints.hxx>
 #include <detfunc.hxx>
+#include <cellmergeoption.hxx>
+#include <undoblk.hxx>
 
 #include <orcusfilters.hxx>
 #include <filter.hxx>
@@ -102,6 +104,7 @@ public:
     virtual void tearDown() override;
 
     //ods, xls, xlsx filter tests
+    void testUpdateCircleInMergedCellODS();
     void testDeleteCircleInMergedCellODS();
     void testBooleanFormatXLSX();
     void testBasicCellContentODS();
@@ -292,6 +295,7 @@ public:
     void testDeleteCirclesInRowAndCol();
 
     CPPUNIT_TEST_SUITE(ScFiltersTest);
+    CPPUNIT_TEST(testUpdateCircleInMergedCellODS);
     CPPUNIT_TEST(testDeleteCircleInMergedCellODS);
     CPPUNIT_TEST(testBooleanFormatXLSX);
     CPPUNIT_TEST(testBasicCellContentODS);
@@ -526,6 +530,37 @@ void testRangeNameImpl(const ScDocument& rDoc)
 
 }
 
+void ScFiltersTest::testUpdateCircleInMergedCellODS()
+{
+    ScDocShellRef xDocSh = loadDoc("updateCircleInMergedCell.", FORMAT_ODS);
+    CPPUNIT_ASSERT_MESSAGE("Failed to load updateCircleInMergedCell.ods", 
xDocSh.is());
+
+    ScDocument& rDoc = xDocSh->GetDocument();
+    rDoc.EnableChangeReadOnly(true);
+
+    ScDrawLayer* pDrawLayer = rDoc.GetDrawLayer();
+    SdrPage* pPage = pDrawLayer->GetPage(0);
+    CPPUNIT_ASSERT_MESSAGE("draw page for sheet 1 should exist.", pPage);
+
+    // There should be four circle objects!
+    CPPUNIT_ASSERT_EQUAL(static_cast<size_t>(4), pPage->GetObjCount());
+
+    ScCellMergeOption aCellMergeOption(0,0,1,1); // A1:B2
+    aCellMergeOption.maTabs.insert(0);
+    xDocSh->GetDocFunc().MergeCells(aCellMergeOption, false, true, true, 
false);
+
+    // There should be a circle object!
+    CPPUNIT_ASSERT_EQUAL(static_cast<size_t>(1), pPage->GetObjCount());
+
+    std::unique_ptr<ScUndoRemoveMerge> pUndoRemoveMerge;
+    xDocSh->GetDocFunc().UnmergeCells(aCellMergeOption, true, 
pUndoRemoveMerge.get());
+
+    // There should be four circle objects!
+    CPPUNIT_ASSERT_EQUAL(static_cast<size_t>(4), pPage->GetObjCount());
+
+    xDocSh->DoClose();
+}
+
 void ScFiltersTest::testDeleteCircleInMergedCellODS()
 {
     ScDocShellRef xDocSh = loadDoc("deleteCircleInMergedCell.", FORMAT_ODS);
diff --git a/sc/source/core/tool/detfunc.cxx b/sc/source/core/tool/detfunc.cxx
index 3db72b4d6f71..d1294c2b9af0 100644
--- a/sc/source/core/tool/detfunc.cxx
+++ b/sc/source/core/tool/detfunc.cxx
@@ -1381,13 +1381,15 @@ bool ScDetectiveFunc::MarkInvalid(bool& rOverflow)
                     if ( bMarkEmpty )
                         for ( nRow = nNextRow; nRow < nCellRow && nInsCount < 
SC_DET_MAXCIRCLE; nRow++ )
                         {
-                            DrawCircle( nCol, nRow, aData );
+                            
if(!pPattern->GetItem(ATTR_MERGE_FLAG).IsOverlapped())
+                               DrawCircle( nCol, nRow, aData );
                             ++nInsCount;
                         }
                     ScRefCellValue aCell = aCellIter.getRefCellValue();
                     if (!pData->IsDataValid(aCell, aCellIter.GetPos()))
                     {
-                        DrawCircle( nCol, nCellRow, aData );
+                        if(!pPattern->GetItem(ATTR_MERGE_FLAG).IsOverlapped())
+                           DrawCircle( nCol, nCellRow, aData );
                         ++nInsCount;
                     }
                     nNextRow = nCellRow + 1;
@@ -1395,7 +1397,8 @@ bool ScDetectiveFunc::MarkInvalid(bool& rOverflow)
                 if ( bMarkEmpty )
                     for ( nRow = nNextRow; nRow <= nRow2 && nInsCount < 
SC_DET_MAXCIRCLE; nRow++ )
                     {
-                        DrawCircle( nCol, nRow, aData );
+                        if(!pPattern->GetItem(ATTR_MERGE_FLAG).IsOverlapped())
+                           DrawCircle(nCol, nRow, aData);
                         ++nInsCount;
                     }
             }
diff --git a/sc/source/ui/docshell/docfunc.cxx 
b/sc/source/ui/docshell/docfunc.cxx
index 755a563cc43a..e05513039d9e 100644
--- a/sc/source/ui/docshell/docfunc.cxx
+++ b/sc/source/ui/docshell/docfunc.cxx
@@ -5027,6 +5027,10 @@ bool ScDocFunc::MergeCells( const ScCellMergeOption& 
rOption, bool bContents, bo
             rDoc.SetDirty(aRange, true);
         }
 
+        bool bDone = ScDetectiveFunc(rDoc, nTab).DeleteAll( 
ScDetectiveDelete::Circles );
+        if(bDone)
+           DetectiveMarkInvalid(nTab);
+
         bNeedContentsUndo |= bNeedContents;
     }
 
@@ -5112,6 +5116,10 @@ bool ScDocFunc::UnmergeCells( const ScCellMergeOption& 
rOption, bool bRecord, Sc
 
         if ( !AdjustRowHeight( aExtended ) )
             rDocShell.PostPaint( aExtended, PaintPartFlags::Grid );
+
+        bool bDone = ScDetectiveFunc(rDoc, nTab).DeleteAll( 
ScDetectiveDelete::Circles );
+        if(bDone)
+           DetectiveMarkInvalid(nTab);
     }
 
     if (bRecord)
diff --git a/sc/source/ui/inc/docfunc.hxx b/sc/source/ui/inc/docfunc.hxx
index 1984c0da440a..f7b518ef7f35 100644
--- a/sc/source/ui/inc/docfunc.hxx
+++ b/sc/source/ui/inc/docfunc.hxx
@@ -195,7 +195,8 @@ public:
                     MergeCells( const ScCellMergeOption& rOption, bool 
bContents,
                                         bool bRecord, bool bApi, bool 
bEmptyMergedCells = false );
     bool            UnmergeCells( const ScRange& rRange, bool bRecord, 
ScUndoRemoveMerge* pUndoRemoveMerge );
-    bool            UnmergeCells( const ScCellMergeOption& rOption, bool 
bRecord, ScUndoRemoveMerge* pUndoRemoveMerge );
+    SC_DLLPUBLIC bool
+                    UnmergeCells( const ScCellMergeOption& rOption, bool 
bRecord, ScUndoRemoveMerge* pUndoRemoveMerge );
 
     // takes ownership of pNewRanges, nTab = -1 for local range names
     void            SetNewRangeNames( std::unique_ptr<ScRangeName> pNewRanges, 
bool bModifyDoc, SCTAB nTab );
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