tdf#134210 Handle greyscale effect on bitmap filled custom shapes.

Change-Id: Ia4a0828dad80e32cc0c7fe12227ffca717d62e03
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/110572
Tested-by: Jenkins
Reviewed-by: Gülşah Köse <gulsah.kose@collabora.com>

3 files changed, 35 insertions, 0 deletions

diff --git a/oox/source/drawingml/fillproperties.cxx b/oox/source/drawingml/fillproperties.cxx
index 6feeb1c9991d..2022df1d335a 100644
--- a/oox/source/drawingml/fillproperties.cxx
+++ b/oox/source/drawingml/fillproperties.cxx
@@ -166,6 +166,22 @@ Reference< XGraphic > lclMirrorGraphic(uno::Reference<graphic::XGraphic> const &
     return aReturnGraphic.GetXGraphic();
 }
 
+Reference< XGraphic > lclGreysScaleGraphic(uno::Reference<graphic::XGraphic> const & xGraphic)
+{
+    ::Graphic aGraphic(xGraphic);
+    ::Graphic aReturnGraphic;
+
+    assert (aGraphic.GetType() == GraphicType::Bitmap);
+
+    BitmapEx aBitmapEx(aGraphic.GetBitmapEx());
+    aBitmapEx.Convert(BmpConversion::N8BitGreys);
+
+    aReturnGraphic = ::Graphic(aBitmapEx);
+    aReturnGraphic.setOriginURL(aGraphic.getOriginURL());
+
+    return aReturnGraphic.GetXGraphic();
+}
+
 Reference< XGraphic > lclCheckAndApplyChangeColorTransform(const BlipFillProperties &aBlipProps, uno::Reference<graphic::XGraphic> const & xGraphic,
                                                            const GraphicHelper& rGraphicHelper, const ::Color nPhClr)
 {
@@ -899,6 +915,9 @@ void GraphicProperties::pushToPropMap( PropertyMap& rPropMap, const GraphicHelpe
             if(bFlipH || bFlipV)
                 xGraphic = lclMirrorGraphic(xGraphic, bFlipH, bFlipV );
 
+            if(eColorMode == ColorMode_GREYS)
+                xGraphic = lclGreysScaleGraphic( xGraphic );
+
             rPropMap.setProperty(PROP_FillBitmap, xGraphic);
         }
         else
diff --git a/sd/qa/unit/data/pptx/greysscale-graphic.pptx b/sd/qa/unit/data/pptx/greysscale-graphic.pptx
new file mode 100644
index 000000000000..547b60c10269
--- /dev/null
+++ b/sd/qa/unit/data/pptx/greysscale-graphic.pptx
diff --git a/sd/qa/unit/import-tests.cxx b/sd/qa/unit/import-tests.cxx
index 8af1b3000e9b..617580ff7f56 100644
--- a/sd/qa/unit/import-tests.cxx
+++ b/sd/qa/unit/import-tests.cxx
@@ -214,6 +214,7 @@ public:
     void testShapeBlurPPTXImport();
     void testMirroredGraphic();
     void testCropPositionGraphic();
+    void testGreysScaleGraphic();
 
     bool checkPattern(sd::DrawDocShellRef const & rDocRef, int nShapeNumber, std::vector<sal_uInt8>& rExpected);
     void testPatternImport();
@@ -344,6 +345,7 @@ public:
     CPPUNIT_TEST(testShapeBlurPPTXImport);
     CPPUNIT_TEST(testMirroredGraphic);
     CPPUNIT_TEST(testCropPositionGraphic);
+    CPPUNIT_TEST(testGreysScaleGraphic);
 
     CPPUNIT_TEST_SUITE_END();
 };
@@ -3337,6 +3339,20 @@ void SdImportTest::testCropPositionGraphic()
     xDocShRef->DoClose();
 }
 
+void SdImportTest::testGreysScaleGraphic()
+{
+    sd::DrawDocShellRef xDocShRef = loadURL(m_directories.getURLFromSrc(u"sd/qa/unit/data/pptx/greysscale-graphic.pptx"), PPTX);
+    uno::Reference<beans::XPropertySet> xShape(getShapeFromPage(0, 0, xDocShRef), uno::UNO_SET_THROW);
+    CPPUNIT_ASSERT(xShape.is());
+    uno::Reference<graphic::XGraphic> xGraphic;
+    xShape->getPropertyValue("FillBitmap") >>= xGraphic;
+    CPPUNIT_ASSERT(xGraphic.is());
+    Graphic aGraphic(xGraphic);
+    BitmapEx aBitmap(aGraphic.GetBitmapEx());
+    CPPUNIT_ASSERT_EQUAL( Color(3947580), aBitmap.GetPixelColor( 0, 0 ));
+    xDocShRef->DoClose();
+}
+
 CPPUNIT_TEST_SUITE_REGISTRATION(SdImportTest);
 
 CPPUNIT_PLUGIN_IMPLEMENT();