tdf#104199 sd: export non-borders as noFill

...followup to commit 76505bbd862b17b9b02a2d6e68bac308890dec70
which made the border invisible by setting the color to COL_AUTO.

But being invisible isn't good enough because on a round-trip
we are now losing the "noFill" attribute and saving a defined
border. However, COL_AUTO is turned into white during import,
in both LO and in MSO, so round-tripping displayed a
white border instead of an invisible one.

Change-Id: If6cb513ca6e4336e49bc56a9509aede2e1937063
Reviewed-on: https://gerrit.libreoffice.org/55658
Tested-by: Jenkins
Reviewed-by: Justin Luth <justin_luth@sil.org>
Reviewed-by: Szymon Kłos <szymon.klos@collabora.com>
Tested-by: Szymon Kłos <szymon.klos@collabora.com>
(cherry picked from commit 4087130d0531a31456310bfe5c41a028dacd5a4d)
Reviewed-on: https://gerrit.libreoffice.org/56747

3 files changed, 60 insertions, 57 deletions

diff --git a/oox/source/export/shapes.cxx b/oox/source/export/shapes.cxx
index 6e4442502b5d..95cc968f76ff 100644
--- a/oox/source/export/shapes.cxx
+++ b/oox/source/export/shapes.cxx
@@ -1758,7 +1758,10 @@ void ShapeExport::WriteBorderLine(const sal_Int32 XML_line, const BorderLine2& r
     if ( nBorderWidth > 0 )
     {
         mpFS->startElementNS( XML_a, XML_line, XML_w, I32S(nBorderWidth), FSEND );
-        DrawingML::WriteSolidFill( ::Color(rBorderLine.Color) );
+        if ( rBorderLine.Color == sal_Int32( COL_AUTO ) )
+            mpFS->singleElementNS( XML_a, XML_noFill, FSEND );
+        else
+            DrawingML::WriteSolidFill( ::Color(rBorderLine.Color) );
         mpFS->endElementNS( XML_a, XML_line );
     }
 }
diff --git a/sd/qa/unit/export-tests.cxx b/sd/qa/unit/export-tests.cxx
index 165d212fd956..b75e4aad24cf 100644
--- a/sd/qa/unit/export-tests.cxx
+++ b/sd/qa/unit/export-tests.cxx
@@ -82,6 +82,7 @@ public:
     void testTdf97630();
     void testSwappedOutImageExport();
     void testOOoXMLAnimations();
+    void testBnc480256();
     void testUnknownAttributes();
     void testTdf80020();
     void testLinkedGraphicRT();
@@ -105,6 +106,7 @@ public:
     CPPUNIT_TEST(testTdf97630);
     CPPUNIT_TEST(testSwappedOutImageExport);
     CPPUNIT_TEST(testOOoXMLAnimations);
+    CPPUNIT_TEST(testBnc480256);
     CPPUNIT_TEST(testUnknownAttributes);
     CPPUNIT_TEST(testTdf80020);
     CPPUNIT_TEST(testLinkedGraphicRT);
@@ -517,6 +519,60 @@ void SdExportTest::testOOoXMLAnimations()
     assertXPath(pXmlDoc, "//anim:par", 223);
 }
 
+void SdExportTest::testBnc480256()
+{
+    sd::DrawDocShellRef xDocShRef = loadURL(m_directories.getURLFromSrc("/sd/qa/unit/data/pptx/bnc480256.pptx"), PPTX);
+    // In the document, there are two tables with table background properties.
+    // Make sure colors are set properly for individual cells.
+
+    // TODO: If you are working on improving table background support, expect
+    // this unit test to fail. In that case, feel free to change the numbers.
+
+    const SdrPage *pPage = GetPage( 1, xDocShRef );
+
+    sdr::table::SdrTableObj *pTableObj;
+    uno::Reference< table::XCellRange > xTable;
+    uno::Reference< beans::XPropertySet > xCell;
+    sal_Int32 nColor;
+    table::BorderLine2 aBorderLine;
+
+    pTableObj = dynamic_cast<sdr::table::SdrTableObj*>(pPage->GetObj(0));
+    CPPUNIT_ASSERT( pTableObj );
+    xTable.set(pTableObj->getTable(), uno::UNO_QUERY_THROW);
+
+    xCell.set(xTable->getCellByPosition(0, 0), uno::UNO_QUERY_THROW);
+    xCell->getPropertyValue("FillColor") >>= nColor;
+    CPPUNIT_ASSERT_EQUAL(sal_Int32(10208238), nColor);
+    xCell->getPropertyValue("LeftBorder") >>= aBorderLine;
+    CPPUNIT_ASSERT_EQUAL(util::Color(5609427), aBorderLine.Color);
+
+    xCell.set(xTable->getCellByPosition(0, 1), uno::UNO_QUERY_THROW);
+    xCell->getPropertyValue("FillColor") >>= nColor;
+    CPPUNIT_ASSERT_EQUAL(sal_Int32(13032959), nColor);
+    xCell->getPropertyValue("TopBorder") >>= aBorderLine;
+    CPPUNIT_ASSERT_EQUAL(util::Color(5609427), aBorderLine.Color);
+
+    pTableObj = dynamic_cast<sdr::table::SdrTableObj*>(pPage->GetObj(1));
+    CPPUNIT_ASSERT( pTableObj );
+    xTable.set(pTableObj->getTable(), uno::UNO_QUERY_THROW);
+
+    xCell.set(xTable->getCellByPosition(0, 0), uno::UNO_QUERY_THROW);
+    xCell->getPropertyValue("FillColor") >>= nColor;
+    CPPUNIT_ASSERT_EQUAL(sal_Int32(7056614), nColor);
+    xCell->getPropertyValue("LeftBorder") >>= aBorderLine;
+    CPPUNIT_ASSERT_EQUAL(util::Color(12505062), aBorderLine.Color);
+
+    xCell.set(xTable->getCellByPosition(0, 1), uno::UNO_QUERY_THROW);
+    xCell->getPropertyValue("FillColor") >>= nColor;
+    CPPUNIT_ASSERT_EQUAL(sal_Int32(4626400), nColor);
+
+    xCell.set(xTable->getCellByPosition(1, 0), uno::UNO_QUERY_THROW);
+    xCell->getPropertyValue("BottomBorder") >>= aBorderLine;
+    CPPUNIT_ASSERT_EQUAL(util::Color(COL_AUTO), aBorderLine.Color);
+
+    xDocShRef->DoClose();
+}
+
 void SdExportTest::testUnknownAttributes()
 {
     ::sd::DrawDocShellRef xDocShRef = loadURL(m_directories.getURLFromSrc("/sd/qa/unit/data/unknown-attribute.fodp"), FODP);
diff --git a/sd/qa/unit/import-tests.cxx b/sd/qa/unit/import-tests.cxx
index 242bddfd2c3a..b9d7b21db3aa 100644
--- a/sd/qa/unit/import-tests.cxx
+++ b/sd/qa/unit/import-tests.cxx
@@ -127,7 +127,6 @@ public:
     void testN862510_4();
     void testBnc870237();
     void testBnc887225();
-    void testBnc480256();
     void testBnc591147();
     void testCreationDate();
     void testBnc584721_1();
@@ -211,7 +210,6 @@ public:
     CPPUNIT_TEST(testN862510_4);
     CPPUNIT_TEST(testBnc870237);
     CPPUNIT_TEST(testBnc887225);
-    CPPUNIT_TEST(testBnc480256);
     CPPUNIT_TEST(testBnc591147);
     CPPUNIT_TEST(testCreationDate);
     CPPUNIT_TEST(testBnc584721_1);
@@ -890,60 +888,6 @@ void SdImportTest::testBnc887225()
     xDocShRef->DoClose();
 }
 
-void SdImportTest::testBnc480256()
-{
-    sd::DrawDocShellRef xDocShRef = loadURL(m_directories.getURLFromSrc("/sd/qa/unit/data/pptx/bnc480256.pptx"), PPTX);
-    // In the document, there are two tables with table background properties.
-    // Make sure colors are set properly for individual cells.
-
-    // TODO: If you are working on improving table background support, expect
-    // this unit test to fail. In that case, feel free to change the numbers.
-
-    const SdrPage *pPage = GetPage( 1, xDocShRef );
-
-    sdr::table::SdrTableObj *pTableObj;
-    uno::Reference< table::XCellRange > xTable;
-    uno::Reference< beans::XPropertySet > xCell;
-    sal_Int32 nColor;
-    table::BorderLine2 aBorderLine;
-
-    pTableObj = dynamic_cast<sdr::table::SdrTableObj*>(pPage->GetObj(0));
-    CPPUNIT_ASSERT( pTableObj );
-    xTable.set(pTableObj->getTable(), uno::UNO_QUERY_THROW);
-
-    xCell.set(xTable->getCellByPosition(0, 0), uno::UNO_QUERY_THROW);
-    xCell->getPropertyValue("FillColor") >>= nColor;
-    CPPUNIT_ASSERT_EQUAL(sal_Int32(10208238), nColor);
-    xCell->getPropertyValue("LeftBorder") >>= aBorderLine;
-    CPPUNIT_ASSERT_EQUAL(util::Color(5609427), aBorderLine.Color);
-
-    xCell.set(xTable->getCellByPosition(0, 1), uno::UNO_QUERY_THROW);
-    xCell->getPropertyValue("FillColor") >>= nColor;
-    CPPUNIT_ASSERT_EQUAL(sal_Int32(13032959), nColor);
-    xCell->getPropertyValue("TopBorder") >>= aBorderLine;
-    CPPUNIT_ASSERT_EQUAL(util::Color(5609427), aBorderLine.Color);
-
-    pTableObj = dynamic_cast<sdr::table::SdrTableObj*>(pPage->GetObj(1));
-    CPPUNIT_ASSERT( pTableObj );
-    xTable.set(pTableObj->getTable(), uno::UNO_QUERY_THROW);
-
-    xCell.set(xTable->getCellByPosition(0, 0), uno::UNO_QUERY_THROW);
-    xCell->getPropertyValue("FillColor") >>= nColor;
-    CPPUNIT_ASSERT_EQUAL(sal_Int32(7056614), nColor);
-    xCell->getPropertyValue("LeftBorder") >>= aBorderLine;
-    CPPUNIT_ASSERT_EQUAL(util::Color(12505062), aBorderLine.Color);
-
-    xCell.set(xTable->getCellByPosition(0, 1), uno::UNO_QUERY_THROW);
-    xCell->getPropertyValue("FillColor") >>= nColor;
-    CPPUNIT_ASSERT_EQUAL(sal_Int32(4626400), nColor);
-
-    xCell.set(xTable->getCellByPosition(1, 0), uno::UNO_QUERY_THROW);
-    xCell->getPropertyValue("BottomBorder") >>= aBorderLine;
-    CPPUNIT_ASSERT_EQUAL(util::Color(COL_AUTO), aBorderLine.Color);
-
-    xDocShRef->DoClose();
-}
-
 void SdImportTest::testBnc584721_1()
 {
     // Title text shape on the master page contained wrong text.