xmloff: tdf#96147: ODF export: fix duplicate fo:background-color

... attributes that happen if both CharHighlight and CharBackColor
properties are used, because the CharBackTransparent property wasn't
taken into account, and combining the CharBackColor and
CharBackTransparent properties happens *after*
XMLTextExportPropertySetMapper::ContextFilter() runs.

Also, it looks like a transparent highlight wouldn't export properly but
apparently DomainMapper::getColorFromId() won't create such.

(regression from f880962f5b)

Change-Id: Ib628ef8bb377482f74fadb97c81afb95fbbf7184

include/xmloff/txtprmap.hxx

@@ -197,9 +197,10 @@
 #define CTF_RELWIDTHREL                     (XML_TEXT_CTF_START + 168)
 #define CTF_RELHEIGHTREL                    (XML_TEXT_CTF_START + 169)
 #define CTF_CHAR_BACKGROUND                 (XML_TEXT_CTF_START + 170)
-#define CTF_CHAR_HIGHLIGHT                  (XML_TEXT_CTF_START + 171)
+#define CTF_CHAR_BACKGROUND_TRANSPARENCY    (XML_TEXT_CTF_START + 171)
-#define CTF_FILLSTYLE                       (XML_TEXT_CTF_START + 172)
+#define CTF_CHAR_HIGHLIGHT                  (XML_TEXT_CTF_START + 172)
-#define CTF_FILLCOLOR                       (XML_TEXT_CTF_START + 173)
+#define CTF_FILLSTYLE                       (XML_TEXT_CTF_START + 173)
+#define CTF_FILLCOLOR                       (XML_TEXT_CTF_START + 174)
 
 
 enum class TextPropMap {

sw/qa/extras/globalfilter/globalfilter.cxx

@@ -30,6 +30,7 @@ public:
     void testImageWithSpecialID();
     void testGraphicShape();
     void testCharHighlight();
+    void testCharHighlightODF();
     void testCharHighlightBody();
     void testMSCharBackgroundEditing();
     void testCharBackgroundToHighlighting();
@@ -43,6 +44,7 @@ public:
     CPPUNIT_TEST(testImageWithSpecialID);
     CPPUNIT_TEST(testGraphicShape);
     CPPUNIT_TEST(testCharHighlight);
+    CPPUNIT_TEST(testCharHighlightODF);
     CPPUNIT_TEST(testMSCharBackgroundEditing);
     CPPUNIT_TEST(testCharBackgroundToHighlighting);
 #if !defined(WNT)
@@ -473,6 +475,84 @@ void Test::testCharHighlight()
     testCharHighlightBody();
 }
 
+void Test::testCharHighlightODF()
+{
+    mxComponent = loadFromDesktop(getURLFromSrc("/sw/qa/extras/globalfilter/data/char_background_editing.docx"),
+                                      "com.sun.star.text.TextDocument");
+
+    // don't check import, testMSCharBackgroundEditing already does that
+
+    uno::Reference<text::XTextRange> xPara = getParagraph(1);
+    for (int i = 1; i <= 4; ++i)
+    {
+        uno::Reference<beans::XPropertySet> xRun(getRun(xPara,i), uno::UNO_QUERY);
+        switch (i)
+        {
+            case 1: // non-transparent highlight
+            xRun->setPropertyValue("CharBackColor", uno::makeAny(static_cast<sal_Int32>(128)));
+            xRun->setPropertyValue("CharBackTransparent", uno::makeAny(true));
+            xRun->setPropertyValue("CharHighlight", uno::makeAny(static_cast<sal_Int32>(64)));
+            break;
+
+            case 2: // transparent backcolor
+            xRun->setPropertyValue("CharBackColor", uno::makeAny(static_cast<sal_Int32>(128)));
+            xRun->setPropertyValue("CharBackTransparent", uno::makeAny(true));
+            xRun->setPropertyValue("CharHighlight", uno::makeAny(static_cast<sal_Int32>(COL_TRANSPARENT)));
+            break;
+
+            case 3: // non-transparent backcolor
+            xRun->setPropertyValue("CharBackColor", uno::makeAny(static_cast<sal_Int32>(128)));
+            xRun->setPropertyValue("CharBackTransparent", uno::makeAny(false));
+            xRun->setPropertyValue("CharHighlight", uno::makeAny(static_cast<sal_Int32>(COL_TRANSPARENT)));
+            break;
+
+            case 4: // non-transparent highlight again
+            xRun->setPropertyValue("CharBackColor", uno::makeAny(static_cast<sal_Int32>(128)));
+            xRun->setPropertyValue("CharBackTransparent", uno::makeAny(false));
+            xRun->setPropertyValue("CharHighlight", uno::makeAny(static_cast<sal_Int32>(64)));
+            break;
+        }
+    }
+
+    uno::Reference<frame::XStorable> xStorable(mxComponent, uno::UNO_QUERY);
+    utl::MediaDescriptor aMediaDescriptor;
+    aMediaDescriptor["FilterName"] <<= OUString::createFromAscii("writer8");
+
+    utl::TempFile aTempFile;
+    aTempFile.EnableKillingFile();
+    xStorable->storeToURL(aTempFile.GetURL(), aMediaDescriptor.getAsConstPropertyValueList());
+
+    uno::Reference< lang::XComponent > xComponent(xStorable, uno::UNO_QUERY);
+    xComponent->dispose();
+    mxComponent = loadFromDesktop(aTempFile.GetURL(), "com.sun.star.text.TextDocument");
+
+    xPara.set(getParagraph(1));
+    for (int i = 1; i <= 4; ++i)
+    {
+        uno::Reference<beans::XPropertySet> xRun(getRun(xPara,i), uno::UNO_QUERY);
+        CPPUNIT_ASSERT_EQUAL(static_cast<sal_Int32>(COL_TRANSPARENT), getProperty<sal_Int32>(xRun, "CharHighlight"));
+        switch (i)
+        {
+            case 1: // non-transparent highlight
+            CPPUNIT_ASSERT_EQUAL(static_cast<sal_Int32>(64), getProperty<sal_Int32>(xRun, "CharBackColor"));
+            CPPUNIT_ASSERT_EQUAL(sal_False, getProperty<sal_Bool>(xRun, "CharBackTransparent"));
+            break;
+            case 2: // transparent backcolor
+            CPPUNIT_ASSERT_EQUAL(static_cast<sal_Int32>(COL_TRANSPARENT), getProperty<sal_Int32>(xRun, "CharBackColor"));
+            CPPUNIT_ASSERT_EQUAL(sal_True, getProperty<sal_Bool>(xRun, "CharBackTransparent"));
+            break;
+            case 3: // non-transparent backcolor
+            CPPUNIT_ASSERT_EQUAL(static_cast<sal_Int32>(128), getProperty<sal_Int32>(xRun, "CharBackColor"));
+            CPPUNIT_ASSERT_EQUAL(sal_False, getProperty<sal_Bool>(xRun, "CharBackTransparent"));
+            break;
+            case 4: // non-transparent highlight again
+            CPPUNIT_ASSERT_EQUAL(static_cast<sal_Int32>(64), getProperty<sal_Int32>(xRun, "CharBackColor"));
+            CPPUNIT_ASSERT_EQUAL(sal_False, getProperty<sal_Bool>(xRun, "CharBackTransparent"));
+            break;
+        }
+    }
+}
+
 void Test::testMSCharBackgroundEditing()
 {
     // Simulate the editing process of imported MSO character background attributes

xmloff/source/text/txtexppr.cxx

@@ -669,6 +669,7 @@ void XMLTextExportPropertySetMapper::ContextFilter(
 
     // character background and highlight
     XMLPropertyState* pCharBackground = nullptr;
+    XMLPropertyState* pCharBackgroundTransparency = nullptr;
     XMLPropertyState* pCharHighlight = nullptr;
 
     bool bNeedsAnchor = false;
@@ -831,6 +832,7 @@ void XMLTextExportPropertySetMapper::ContextFilter(
             break;
 
         case CTF_CHAR_BACKGROUND: pCharBackground = propertyState; break;
+        case CTF_CHAR_BACKGROUND_TRANSPARENCY: pCharBackgroundTransparency = propertyState; break;
         case CTF_CHAR_HIGHLIGHT: pCharHighlight = propertyState; break;
         }
     }
@@ -1137,12 +1139,20 @@ void XMLTextExportPropertySetMapper::ContextFilter(
     // When both background attributes are available export the visible one
     if( pCharHighlight && pCharBackground )
     {
+        assert(pCharBackgroundTransparency); // always together
         sal_uInt32 nColor = COL_TRANSPARENT;
         pCharHighlight->maValue >>= nColor;
         if( nColor == COL_TRANSPARENT )
+        {
+            // actually this would not be exported as transparent anyway
+            // and we'd need another property CharHighlightTransparent for that
             pCharHighlight->mnIndex = -1;
+        }
         else
+        {
             pCharBackground->mnIndex = -1;
+            pCharBackgroundTransparency->mnIndex = -1;
+        }
     }
 
     SvXMLExportPropertyMapper::ContextFilter(bEnableFoFontFamily, rProperties, rPropSet);

xmloff/source/text/txtprmap.cxx

@@ -192,7 +192,7 @@ XMLPropertyMapEntry aXMLParaPropMap[] =
     // TODO: not used?
     // RES_CHRATR_BACKGROUND
     MT_E( "CharBackColor",  FO, BACKGROUND_COLOR, XML_TYPE_COLORTRANSPARENT|MID_FLAG_MULTI_PROPERTY, CTF_CHAR_BACKGROUND ),
-    MT_E( "CharBackTransparent",    FO, BACKGROUND_COLOR, XML_TYPE_ISTRANSPARENT|MID_FLAG_MERGE_ATTRIBUTE, 0 ),
+    MT_E( "CharBackTransparent",    FO, BACKGROUND_COLOR, XML_TYPE_ISTRANSPARENT|MID_FLAG_MERGE_ATTRIBUTE, CTF_CHAR_BACKGROUND_TRANSPARENCY),
     MT_E( "CharBackColor",  FO, TEXT_BACKGROUND_COLOR, XML_TYPE_COLOR|MID_FLAG_SPECIAL_ITEM_EXPORT, CTF_OLDTEXTBACKGROUND ),
     // RES_CHRATR_CJK_FONT
     MT_ED( "CharFontNameAsian", STYLE,  FONT_NAME_ASIAN,            XML_TYPE_STRING|MID_FLAG_SPECIAL_ITEM_IMPORT, CTF_FONTNAME_CJK ),
@@ -535,7 +535,7 @@ XMLPropertyMapEntry aXMLTextPropMap[] =
     // TODO: not used?
     // RES_CHRATR_BACKGROUND
     MT_E( "CharBackColor",  FO, BACKGROUND_COLOR, XML_TYPE_COLORTRANSPARENT|MID_FLAG_MULTI_PROPERTY, CTF_CHAR_BACKGROUND ),
-    MT_E( "CharBackTransparent",    FO, BACKGROUND_COLOR, XML_TYPE_ISTRANSPARENT|MID_FLAG_MERGE_ATTRIBUTE, 0 ),
+    MT_E( "CharBackTransparent",    FO, BACKGROUND_COLOR, XML_TYPE_ISTRANSPARENT|MID_FLAG_MERGE_ATTRIBUTE, CTF_CHAR_BACKGROUND_TRANSPARENCY),
     { "CharShadingValue", sizeof("CharShadingValue")-1, XML_NAMESPACE_LO_EXT, XML_CHAR_SHADING_VALUE, XML_TYPE_NUMBER|XML_TYPE_PROP_TEXT, 0, SvtSaveOptions::ODFVER_012_EXT_COMPAT, false },
     MT_E( "CharBackColor",  FO, TEXT_BACKGROUND_COLOR, XML_TYPE_COLOR|MID_FLAG_SPECIAL_ITEM_EXPORT, CTF_OLDTEXTBACKGROUND ),
     // RES_CHRATR_CJK_FONT