tdf#107584: Load/save page background transparency

Change-Id: I17bd01dc129f0e530d5e227a5ddc12f11486e85d
Reviewed-on: https://gerrit.libreoffice.org/39206Tested-by: Jenkins <ci@libreoffice.org>
Reviewed-by: Katarina Behrens <Katarina.Behrens@cib.de>

sd/qa/unit/export-tests.cxx

@@ -89,6 +89,7 @@ public:
     void testEmbeddedPdf();
     void testAuthorField();
     void testTdf100926();
+    void testPageWithTransparentBackground();
 
     CPPUNIT_TEST_SUITE(SdExportTest);
 
@@ -105,6 +106,7 @@ public:
     CPPUNIT_TEST(testEmbeddedPdf);
     CPPUNIT_TEST(testAuthorField);
     CPPUNIT_TEST(testTdf100926);
+    CPPUNIT_TEST(testPageWithTransparentBackground);
 
     CPPUNIT_TEST_SUITE_END();
 
@@ -597,6 +599,31 @@ void SdExportTest::testTdf100926()
     xDocShRef->DoClose();
 }
 
+void SdExportTest::testPageWithTransparentBackground()
+{
+    ::sd::DrawDocShellRef xDocShRef = loadURL( m_directories.getURLFromSrc("/sd/qa/unit/data/odp/page_transparent_background.odp"), ODP );
+
+    xDocShRef = saveAndReload( xDocShRef.get(), ODP );
+    uno::Reference< drawing::XDrawPagesSupplier > xDoc(
+        xDocShRef->GetDoc()->getUnoModel(), uno::UNO_QUERY_THROW );
+    CPPUNIT_ASSERT_EQUAL_MESSAGE( "There should be exactly one page", static_cast<sal_Int32>(1), xDoc->getDrawPages()->getCount() );
+
+    uno::Reference< drawing::XDrawPage > xPage( getPage( 0, xDocShRef ) );
+
+    uno::Reference< beans::XPropertySet > xPropSet( xPage, uno::UNO_QUERY );
+    uno::Any aAny = xPropSet->getPropertyValue( "Background" );
+    CPPUNIT_ASSERT_MESSAGE("Slide background is missing", aAny.hasValue());
+
+    uno::Reference< beans::XPropertySet > aXBackgroundPropSet;
+    aAny >>= aXBackgroundPropSet;
+    sal_Int32 nTransparence;
+    aAny = aXBackgroundPropSet->getPropertyValue( "FillTransparence" );
+    aAny >>= nTransparence;
+    CPPUNIT_ASSERT_EQUAL_MESSAGE("Slide background transparency is wrong", sal_Int32(42), nTransparence);
+
+    xDocShRef->DoClose();
+}
+
 CPPUNIT_TEST_SUITE_REGISTRATION(SdExportTest);
 
 CPPUNIT_PLUGIN_IMPLEMENT();

xmloff/source/draw/sdpropls.cxx

@@ -313,6 +313,7 @@ const XMLPropertyMapEntry aXMLSDPresPageProps[] =
     DPMAP( "FillHatchName",             XML_NAMESPACE_DRAW, XML_FILL_HATCH_NAME,        XML_TYPE_STYLENAME|MID_FLAG_NO_PROPERTY_IMPORT, CTF_FILLHATCHNAME ),
     GMAP( "FillBackground",                 XML_NAMESPACE_DRAW, XML_FILL_HATCH_SOLID,       XML_TYPE_BOOL, 0 ),
     DPMAP( "FillBitmapName",                XML_NAMESPACE_DRAW, XML_FILL_IMAGE_NAME,    XML_TYPE_STYLENAME|MID_FLAG_NO_PROPERTY_IMPORT, CTF_FILLBITMAPNAME ),
+    DPMAP( "FillTransparence",              XML_NAMESPACE_DRAW, XML_OPACITY,           XML_TYPE_NEG_PERCENT|MID_FLAG_MULTI_PROPERTY,  0 ),
     DPMAP( "FillTransparenceGradientName",  XML_NAMESPACE_DRAW, XML_OPACITY_NAME,       XML_TYPE_STYLENAME|MID_FLAG_NO_PROPERTY_IMPORT, CTF_FILLTRANSNAME ),
     DPMAP( "FillBitmapSizeX",           XML_NAMESPACE_DRAW, XML_FILL_IMAGE_WIDTH,       XML_SD_TYPE_FILLBITMAPSIZE|MID_FLAG_MULTI_PROPERTY, 0 ),
     DPMAP( "FillBitmapLogicalSize",     XML_NAMESPACE_DRAW, XML_FILL_IMAGE_WIDTH,       XML_SD_TYPE_LOGICAL_SIZE|MID_FLAG_MULTI_PROPERTY, 0 ),