tdf#142014 Fix displaying strokes when line width is 0

Change-Id: I80e05ff2f24f5da2f5c124c0ee1b302a1c8226ea
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/115570
Tested-by: Jenkins
Reviewed-by: Bartosz Kosiorek <gang65@poczta.onet.pl>
(cherry picked from commit 699295ca7cab3a4f4e801a14496f202c05d18899)
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/115514
Reviewed-by: Xisco Fauli <xiscofauli@libreoffice.org>
diff --git a/emfio/qa/cppunit/emf/EmfImportTest.cxx b/emfio/qa/cppunit/emf/EmfImportTest.cxx
index 46290059..fcdf250 100644
--- a/emfio/qa/cppunit/emf/EmfImportTest.cxx
+++ b/emfio/qa/cppunit/emf/EmfImportTest.cxx
@@ -56,6 +56,7 @@ class Test : public test::BootstrapFixture, public XmlTestTools, public unotest:
    void TestEllipseXformIntersectClipRect();
    void TestDrawPolyLine16WithClip();
    void TestFillRegion();
    void TestPolylinetoCloseStroke();
    void TestPolyLineWidth();
    void TestRoundRect();
    void TestCreatePen();
@@ -82,6 +83,7 @@ public:
    CPPUNIT_TEST(TestEllipseXformIntersectClipRect);
    CPPUNIT_TEST(TestDrawPolyLine16WithClip);
    CPPUNIT_TEST(TestFillRegion);
    CPPUNIT_TEST(TestPolylinetoCloseStroke);
    CPPUNIT_TEST(TestPolyLineWidth);
    CPPUNIT_TEST(TestRoundRect);
    CPPUNIT_TEST(TestCreatePen);
@@ -438,6 +440,26 @@ void Test::TestFillRegion()
    assertXPath(pDocument, "/primitive2D/metafile/transform/mask/polygonhairline[1]", "color", "#000000");
}

void Test::TestPolylinetoCloseStroke()
{
    // EMF import with records: BEGINPATH, ARC, ENDPATH, STROKEPATH, EXTCREATEPEN.
    Primitive2DSequence aSequence = parseEmf(u"/emfio/qa/cppunit/emf/data/TestPolylinetoCloseStroke.emf");
    CPPUNIT_ASSERT_EQUAL(1, static_cast<int>(aSequence.getLength()));
    drawinglayer::Primitive2dXmlDump dumper;
    xmlDocUniquePtr pDocument = dumper.dumpAndParse(comphelper::sequenceToContainer<Primitive2DContainer>(aSequence));
    CPPUNIT_ASSERT (pDocument);

    assertXPath(pDocument, "/primitive2D/metafile/transform/polygonhairline", 2);
    assertXPathContent(pDocument, "/primitive2D/metafile/transform/polygonhairline[1]/polygon",
                       "1080,150 810,230 570,340 370,490 290,570 170,750 130,840 100,980 100,1080 140,1270 160,1320 210,1410 400,1620 500,1690");
    assertXPath(pDocument, "/primitive2D/metafile/transform/polygonhairline[1]",
                "color", "#000000");
    assertXPathContent(pDocument, "/primitive2D/metafile/transform/polygonhairline[2]/polygon",
                       "1760,1120 1500,1180 1350,1240 1230,1310 1210,1330 1120,1440 1110,1460 1100,1510 1100,1580 1140,1670 1170,1710 1190,1730");
    assertXPath(pDocument, "/primitive2D/metafile/transform/polygonhairline[2]",
                "color", "#000000");
}

void Test::TestPolyLineWidth()
{
    // EMF import with records: CREATEPEN, ROUNDRECT.
diff --git a/emfio/qa/cppunit/emf/data/TestPolylinetoCloseStroke.emf b/emfio/qa/cppunit/emf/data/TestPolylinetoCloseStroke.emf
new file mode 100644
index 0000000..e89e922
--- /dev/null
+++ b/emfio/qa/cppunit/emf/data/TestPolylinetoCloseStroke.emf
Binary files differ
diff --git a/emfio/source/reader/mtftools.cxx b/emfio/source/reader/mtftools.cxx
index bdae896..989970c9c 100644
--- a/emfio/source/reader/mtftools.cxx
+++ b/emfio/source/reader/mtftools.cxx
@@ -1305,11 +1305,15 @@ namespace emfio
                mpGDIMetaFile->AddAction( new MetaPopAction() );
        }
        // tdf#142014 By default the stroke is made with hairline. If width is bigger, we need to use PolyLineAction
        if ( bStroke && ( maLineStyle.aLineInfo.GetWidth() || ( maLineStyle.aLineInfo.GetStyle() == LineStyle::Dash ) ) )
        if ( bStroke )
        {
            sal_uInt16 i, nCount = maPathObj.Count();
            for ( i = 0; i < nCount; i++ )
                mpGDIMetaFile->AddAction( new MetaPolyLineAction( maPathObj[ i ], maLineStyle.aLineInfo ) );
            // bFill is drawing hairstyle line. So we need to to draw it only when the width is different than 0
            if ( !bFill || maLineStyle.aLineInfo.GetWidth() || ( maLineStyle.aLineInfo.GetStyle() == LineStyle::Dash ) )
            {
                sal_uInt16 i, nCount = maPathObj.Count();
                for ( i = 0; i < nCount; i++ )
                    mpGDIMetaFile->AddAction( new MetaPolyLineAction( maPathObj[ i ], maLineStyle.aLineInfo ) );
            }
        }
        ClearPath();
    }