tdf#127901: pptx export image greyscale, watermark, black/white

Similar to 0db96caf0fcce09b87621c11b584a6d81cc7df86

Change-Id: I5c3ec17c7a3472629ba8a63ab500175add36ee8e
Reviewed-on: https://gerrit.libreoffice.org/79994
Tested-by: Jenkins
Reviewed-by: Xisco Faulí <xiscofauli@libreoffice.org>

3 files changed, 39 insertions, 0 deletions

diff --git a/oox/source/export/drawingml.cxx b/oox/source/export/drawingml.cxx
index 0e49cfca4291..19b23be5cd2a 100644
--- a/oox/source/export/drawingml.cxx
+++ b/oox/source/export/drawingml.cxx
@@ -56,6 +56,7 @@
 #include <com/sun/star/container/XIndexAccess.hpp>
 #include <com/sun/star/document/XStorageBasedDocument.hpp>
 #include <com/sun/star/drawing/BitmapMode.hpp>
+#include <com/sun/star/drawing/ColorMode.hpp>
 #include <com/sun/star/drawing/EnhancedCustomShapeAdjustmentValue.hpp>
 #include <com/sun/star/drawing/EnhancedCustomShapeParameterType.hpp>
 #include <com/sun/star/drawing/EnhancedCustomShapeParameterPair.hpp>
@@ -1266,6 +1267,23 @@ void DrawingML::WriteImageBrightnessContrastTransparence(uno::Reference<beans::X
     if (nTransparence == 0 && GetProperty(rXPropSet, "Transparency"))
         nTransparence = static_cast<sal_Int32>(mAny.get<sal_Int16>());
 
+    if (GetProperty(rXPropSet, "GraphicColorMode"))
+    {
+        drawing::ColorMode aColorMode;
+        mAny >>= aColorMode;
+        if (aColorMode == drawing::ColorMode_GREYS)
+            mpFS->singleElementNS(XML_a, XML_grayscl);
+        else if (aColorMode == drawing::ColorMode_MONO)
+            //black/white has a 0,5 threshold in LibreOffice
+            mpFS->singleElementNS(XML_a, XML_biLevel, XML_thresh, OString::number(50000));
+        else if (aColorMode == drawing::ColorMode_WATERMARK)
+        {
+            //map watermark with mso washout
+            nBright = 70;
+            nContrast = -70;
+        }
+    }
+
 
     if (nBright || nContrast)
     {
diff --git a/sd/qa/unit/data/odp/tdf127901.odp b/sd/qa/unit/data/odp/tdf127901.odp
new file mode 100644
index 000000000000..e1c5dfad3fae
--- /dev/null
+++ b/sd/qa/unit/data/odp/tdf127901.odp
diff --git a/sd/qa/unit/export-tests-ooxml2.cxx b/sd/qa/unit/export-tests-ooxml2.cxx
index 3944a8e3538b..698982cddcb1 100644
--- a/sd/qa/unit/export-tests-ooxml2.cxx
+++ b/sd/qa/unit/export-tests-ooxml2.cxx
@@ -134,6 +134,7 @@ public:
     void testThemeColors();
     void testTdf114848();
     void testTdf68759();
+    void testTdf127901();
     void testTdf90626();
     void testTdf107608();
     void testTdf111786();
@@ -233,6 +234,7 @@ public:
     CPPUNIT_TEST(testThemeColors);
     CPPUNIT_TEST(testTdf114848);
     CPPUNIT_TEST(testTdf68759);
+    CPPUNIT_TEST(testTdf127901);
     CPPUNIT_TEST(testTdf90626);
     CPPUNIT_TEST(testTdf107608);
     CPPUNIT_TEST(testTdf111786);
@@ -1534,6 +1536,25 @@ void SdOOXMLExportTest2::testTdf68759()
 
 }
 
+void SdOOXMLExportTest2::testTdf127901()
+{
+    ::sd::DrawDocShellRef xDocShRef = loadURL(m_directories.getURLFromSrc("sd/qa/unit/data/odp/tdf127901.odp"), ODP);
+    utl::TempFile tempFile;
+    xDocShRef = saveAndReload(xDocShRef.get(), PPTX, &tempFile);
+    xDocShRef->DoClose();
+
+    xmlDocPtr pXmlDocContent1 = parseExport(tempFile, "ppt/slides/slide1.xml");
+    assertXPath(pXmlDocContent1, "/p:sld/p:cSld/p:spTree/p:pic/p:blipFill/a:blip/a:lum", "bright", "70000");
+    assertXPath(pXmlDocContent1, "/p:sld/p:cSld/p:spTree/p:pic/p:blipFill/a:blip/a:lum", "contrast", "-70000");
+
+    xmlDocPtr pXmlDocContent2 = parseExport(tempFile, "ppt/slides/slide2.xml");
+    assertXPath(pXmlDocContent2, "/p:sld/p:cSld/p:spTree/p:pic/p:blipFill/a:blip/a:grayscl", 1);
+
+    xmlDocPtr pXmlDocContent3 = parseExport(tempFile, "ppt/slides/slide3.xml");
+    assertXPath(pXmlDocContent3, "/p:sld/p:cSld/p:spTree/p:pic/p:blipFill/a:blip/a:biLevel", "thresh", "50000");
+
+}
+
 void SdOOXMLExportTest2::testTdf90626()
 {
     ::sd::DrawDocShellRef xDocShRef = loadURL(m_directories.getURLFromSrc("sd/qa/unit/data/odp/tdf90626.odp"), ODP);