sd/qa/unit/PNGExportTests.cxx     |   51 ++++++++++++++++++++++++++++++++++++++
 sd/qa/unit/data/ppt/tdf157636.ppt |binary
 2 files changed, 51 insertions(+)

New commits:
commit e9374f74385d7dfe77d1902d3d82af20143bc775
Author:     Xisco Fauli <xiscofa...@libreoffice.org>
AuthorDate: Wed Oct 11 16:10:37 2023 +0200
Commit:     Xisco Fauli <xiscofa...@libreoffice.org>
CommitDate: Fri Oct 13 00:12:42 2023 +0200

    tdf#157636: sd_png_export: Add unittest
    
    Change-Id: I76ec68fb6482d7c348a08021413c640cf640d7f1
    Reviewed-on: https://gerrit.libreoffice.org/c/core/+/157836
    Tested-by: Jenkins
    Reviewed-by: Xisco Fauli <xiscofa...@libreoffice.org>

diff --git a/sd/qa/unit/PNGExportTests.cxx b/sd/qa/unit/PNGExportTests.cxx
index 04fbed439a41..8f012347644a 100644
--- a/sd/qa/unit/PNGExportTests.cxx
+++ b/sd/qa/unit/PNGExportTests.cxx
@@ -298,6 +298,57 @@ CPPUNIT_TEST_FIXTURE(SdPNGExportTest, testTdf156808)
     }
 }
 
+CPPUNIT_TEST_FIXTURE(SdPNGExportTest, testTdf157636)
+{
+    loadFromURL(u"ppt/tdf157636.ppt");
+    uno::Reference<uno::XComponentContext> xContext = getComponentContext();
+    CPPUNIT_ASSERT(xContext.is());
+    uno::Reference<drawing::XGraphicExportFilter> xGraphicExporter
+        = drawing::GraphicExportFilter::create(xContext);
+
+    uno::Sequence<beans::PropertyValue> aFilterData{
+        comphelper::makePropertyValue("PixelWidth", sal_Int32(100)),
+        comphelper::makePropertyValue("PixelHeight", sal_Int32(100))
+    };
+
+    uno::Sequence<beans::PropertyValue> aDescriptor{
+        comphelper::makePropertyValue("URL", maTempFile.GetURL()),
+        comphelper::makePropertyValue("FilterName", OUString("PNG")),
+        comphelper::makePropertyValue("FilterData", aFilterData)
+    };
+
+    uno::Reference<drawing::XDrawPagesSupplier> 
xDrawPagesSupplier(mxComponent, uno::UNO_QUERY);
+    uno::Reference<lang::XComponent> 
xPage(xDrawPagesSupplier->getDrawPages()->getByIndex(0),
+                                           uno::UNO_QUERY);
+    xGraphicExporter->setSourceDocument(xPage);
+    xGraphicExporter->filter(aDescriptor);
+
+    SvFileStream aFileStream(maTempFile.GetURL(), StreamMode::READ);
+    vcl::PngImageReader aPNGReader(aFileStream);
+    BitmapEx aBMPEx = aPNGReader.read();
+
+    // make sure the bitmap is not empty and correct size (PNG export->import 
was successful)
+    Size aSize = aBMPEx.GetSizePixel();
+    CPPUNIT_ASSERT_EQUAL(Size(100, 100), aSize);
+    Bitmap aBMP = aBMPEx.GetBitmap();
+    Bitmap::ScopedReadAccess pReadAccess(aBMP);
+    int nBlackCount = 0;
+    for (tools::Long nX = 1; nX < aSize.Width() - 1; ++nX)
+    {
+        for (tools::Long nY = 1; nY < aSize.Height() - 1; ++nY)
+        {
+            const Color aColor = pReadAccess->GetColor(nY, nX);
+            if (aColor == COL_BLACK)
+                ++nBlackCount;
+        }
+    }
+
+    // Without the fix in place, this test would have failed with
+    // - Expected greater than: 6600
+    // - Actual  : 559
+    CPPUNIT_ASSERT_GREATER(6600, nBlackCount);
+}
+
 CPPUNIT_TEST_FIXTURE(SdPNGExportTest, testTdf157635)
 {
     loadFromURL(u"pptx/tdf157635.pptx");
diff --git a/sd/qa/unit/data/ppt/tdf157636.ppt 
b/sd/qa/unit/data/ppt/tdf157636.ppt
new file mode 100644
index 000000000000..1dcbbe6f00dc
Binary files /dev/null and b/sd/qa/unit/data/ppt/tdf157636.ppt differ

Reply via email to