tdf#90906 writerfilter: Allow COL_AUTO to override non-auto

If the inherited properties define a non-auto color, then
a specified COL_AUTO needs to be returned in order to
override the inherited color.

This affects three areas. Character fill, Paragraph fill,
and table cell fill. The unit tests cover all three areas.

This patch depends on the commits for tdf#91292

Change-Id: I1a043d2224b164c6c411ce2e46d899212f2b7f3d
Reviewed-on: https://gerrit.libreoffice.org/59313
Tested-by: Jenkins
Reviewed-by: Justin Luth <justin_luth@sil.org>

sw/qa/extras/ooxmlexport/ooxmlexport11.cxx

@@ -53,6 +53,38 @@ DECLARE_OOXMLEXPORT_TEST(testTdf57589_hashColor, "tdf57589_hashColor.docx")
     CPPUNIT_ASSERT_EQUAL(COL_AUTO, Color(getProperty<sal_uInt32>(getParagraph(2), "ParaBackColor")));
 }
 
+DECLARE_OOXMLEXPORT_TEST(testTdf90906_colAuto, "tdf90906_colAuto.docx")
+{
+    uno::Reference<text::XTextTablesSupplier> xTextTablesSupplier(mxComponent, uno::UNO_QUERY);
+    uno::Reference<container::XIndexAccess> xTables(xTextTablesSupplier->getTextTables(), uno::UNO_QUERY);
+    uno::Reference<text::XTextTable> xTable(xTables->getByIndex(0), uno::UNO_QUERY);
+    uno::Reference<text::XTextRange> xCell(xTable->getCellByName("A1"), uno::UNO_QUERY);
+    uno::Reference<container::XEnumerationAccess> xParaEnumAccess(xCell->getText(), uno::UNO_QUERY);
+    uno::Reference<container::XEnumeration> xParaEnum = xParaEnumAccess->createEnumeration();
+    uno::Reference<text::XTextRange> xPara(xParaEnum->nextElement(), uno::UNO_QUERY);
+    CPPUNIT_ASSERT_EQUAL(COL_AUTO, Color(getProperty<sal_uInt32>(getRun(xPara, 1, "Nazwa"), "CharBackColor")));
+}
+
+DECLARE_OOXMLEXPORT_TEST(testTdf90906_colAutoB, "tdf90906_colAutoB.docx")
+{
+    uno::Reference<text::XTextTablesSupplier> xTextTablesSupplier(mxComponent, uno::UNO_QUERY);
+    uno::Reference<container::XIndexAccess> xTables(xTextTablesSupplier->getTextTables(), uno::UNO_QUERY);
+    uno::Reference<text::XTextTable> xTable(xTables->getByIndex(0), uno::UNO_QUERY);
+
+    uno::Reference<table::XCell> xCell = xTable->getCellByName("A1");
+    CPPUNIT_ASSERT_EQUAL(COL_LIGHTGREEN, Color(getProperty<sal_uInt32>(xCell, "BackColor")));
+    xCell.set(xTable->getCellByName("A2"));
+    CPPUNIT_ASSERT_EQUAL(COL_AUTO, Color(getProperty<sal_uInt32>(xCell, "BackColor")));
+    xCell.set(xTable->getCellByName("B1"));
+    CPPUNIT_ASSERT_EQUAL(COL_AUTO, Color(getProperty<sal_uInt32>(xCell, "BackColor")));
+    xCell.set(xTable->getCellByName("B2"));
+    CPPUNIT_ASSERT_EQUAL(COL_LIGHTBLUE, Color(getProperty<sal_uInt32>(xCell, "BackColor")));
+
+    uno::Reference<text::XTextRange> xText(getParagraph(2, "Paragraphs too"));
+    CPPUNIT_ASSERT_EQUAL(drawing::FillStyle_NONE, getProperty<drawing::FillStyle>(xText, "FillStyle"));
+    CPPUNIT_ASSERT_EQUAL(COL_AUTO, Color(getProperty<sal_uInt32>(xText, "ParaBackColor")));
+}
+
 DECLARE_OOXMLEXPORT_TEST(testTdf92524_autoColor, "tdf92524_autoColor.doc")
 {
     CPPUNIT_ASSERT_EQUAL(drawing::FillStyle_NONE, getProperty<drawing::FillStyle>(getParagraph(1), "FillStyle"));

writerfilter/source/dmapper/CellColorHandler.cxx

@@ -39,6 +39,7 @@ m_nShadingPattern( drawing::ShadingPattern::CLEAR ),
 m_nColor( 0xffffffff ),
 m_nFillColor( 0xffffffff ),
 m_bAutoFillColor( true ),
+m_bFillSpecified( false ),
     m_OutputFormat( Form )
 {
 }
@@ -116,6 +117,7 @@ void CellColorHandler::lcl_attribute(Id rName, Value & rVal)
                 m_bAutoFillColor = false;
 
             m_nFillColor = nIntValue;
+            m_bFillSpecified = true;
         break;
         case NS_ooxml::LN_CT_Shd_color:
             createGrabBag("color", uno::makeAny(OUString::fromUtf8(msfilter::util::ConvertColor(nIntValue))));
@@ -205,7 +207,10 @@ TablePropertyMapPtr  CellColorHandler::getProperties()
     if( !nWW8BrushStyle )
     {
         // Clear-Brush
-        nApplyColor = m_nFillColor;
+        if ( m_bFillSpecified && m_bAutoFillColor )
+            nApplyColor = sal_Int32(COL_AUTO);
+        else
+            nApplyColor = m_nFillColor;
     }
     else
     {
@@ -273,13 +278,14 @@ TablePropertyMapPtr  CellColorHandler::getProperties()
 
     if (m_OutputFormat == Paragraph)
     {
-        // If brush style = clear and FillColor = COLOR_AUTO, then don't enable the fill style - just pre-select the default color
         if (nWW8BrushStyle || !m_bAutoFillColor)
             pPropertyMap->Insert(PROP_FILL_STYLE, uno::makeAny(drawing::FillStyle_SOLID));
+        else if ( m_bFillSpecified && m_bAutoFillColor )
+            pPropertyMap->Insert(PROP_FILL_STYLE, uno::makeAny(drawing::FillStyle_NONE));
 
         pPropertyMap->Insert(PROP_FILL_COLOR, uno::makeAny(nApplyColor));
     }
-    else if (nWW8BrushStyle || !m_bAutoFillColor)
+    else if ( nWW8BrushStyle || !m_bAutoFillColor || m_bFillSpecified )
         pPropertyMap->Insert( m_OutputFormat == Form ? PROP_BACK_COLOR
                             : PROP_CHAR_BACK_COLOR, uno::makeAny( nApplyColor ));
 

writerfilter/source/dmapper/CellColorHandler.hxx

@@ -38,6 +38,7 @@ private:
     sal_Int32 m_nColor;
     sal_Int32 m_nFillColor;
     bool      m_bAutoFillColor;
+    bool      m_bFillSpecified;
     OutputFormat m_OutputFormat;
 
     OUString m_aInteropGrabBagName;