Resolves: tdf#106078 get bounding box of commented region for gtk3 tooltips

Change-Id: I4fdc1f471c6c191be9c7c611926bd2b5b2b41308
diff --git a/sw/source/core/crsr/crstrvl.cxx b/sw/source/core/crsr/crstrvl.cxx
index f120dfc..56850d0 100644
--- a/sw/source/core/crsr/crstrvl.cxx
+++ b/sw/source/core/crsr/crstrvl.cxx
@@ -1439,12 +1439,18 @@ bool SwCursorShell::GetContentAtPos( const Point& rPt,

                            if( pFieldRect && nullptr != ( pFrame = pTextNd->getLayoutFrame( GetLayout(), &aPt ) ) )
                            {
                                //get bounding box of range
                                SwRect aStart;
                                SwPosition aStartPos(*pTextNd, nSt);
                                pFrame->GetCharRect(aStart, aStartPos, &aTmpState);
                                SwRect aEnd;
                                SwPosition aEndPos(*pTextNd, nEnd);
                                pFrame->GetCharRect(aEnd, aEndPos, &aTmpState);
                                if (aStart.Top() != aEnd.Top() || aStart.Bottom() != aEnd.Bottom())
                                {
                                    aStart.Left(pFrame->Frame().Left());
                                    aEnd.Right(pFrame->Frame().Right());
                                }
                                *pFieldRect = aStart.Union(aEnd);
                            }
                        }
@@ -1462,7 +1468,19 @@ bool SwCursorShell::GetContentAtPos( const Point& rPt,
                        bRet = true;

                        if( pFieldRect && nullptr != ( pFrame = pTextNd->getLayoutFrame( GetLayout(), &aPt ) ) )
                            pFrame->GetCharRect( *pFieldRect, aPos, &aTmpState );
                        {
                            //get bounding box of range
                            SwRect aStart;
                            pFrame->GetCharRect(aStart, *pRedl->Start(), &aTmpState);
                            SwRect aEnd;
                            pFrame->GetCharRect(aEnd, *pRedl->End(), &aTmpState);
                            if (aStart.Top() != aEnd.Top() || aStart.Bottom() != aEnd.Bottom())
                            {
                                aStart.Left(pFrame->Frame().Left());
                                aEnd.Right(pFrame->Frame().Right());
                            }
                            *pFieldRect = aStart.Union(aEnd);
                        }
                    }
                }
            }