Fix tdf#77881,tdf#80520,tdf#89525 bulllets lost issue.

Replace bullet char before write out font description
since it may be altered if bullet font has been changed
(i.e. StarSymbol to WingDings ).

Change-Id: I0461cc0a5e4628b36177602bba7ed7f74a0751eb
Reviewed-on: https://gerrit.libreoffice.org/17376Tested-by: Jenkins <ci@libreoffice.org>
Reviewed-by: Norbert Thiebaud <nthiebaud@gmail.com>
Reviewed-on: https://gerrit.libreoffice.org/18318Reviewed-by: Mark Hung <marklh9@gmail.com>

oox/source/export/drawingml.cxx

@@ -1746,10 +1746,14 @@ void DrawingML::WriteParagraphNumbering( Reference< XPropertySet > rXPropSet, sa
             mpFS->singleElementNS( XML_a, XML_buSzPct,
                                    XML_val, IS( std::max( (sal_Int32)25000, std::min( (sal_Int32)400000, 1000*( (sal_Int32)nBulletRelSize ) ) ) ), FSEND );
         if( bHasFontDesc )
+        {
+            if ( SVX_NUM_CHAR_SPECIAL == nNumberingType )
+                aBulletChar = SubstituteBullet( aBulletChar, aFontDesc );
             mpFS->singleElementNS( XML_a, XML_buFont,
                                    XML_typeface, aFontDesc.Name.toUtf8().getStr(),
                                    XML_charset, (aFontDesc.CharSet == awt::CharSet::SYMBOL) ? "2" : NULL,
                                    FSEND );
+        }
 
         OUString pAutoNumType = GetAutoNumType( nNumberingType, bSDot, bPBehind, bPBoth );
 
@@ -1762,7 +1766,6 @@ void DrawingML::WriteParagraphNumbering( Reference< XPropertySet > rXPropSet, sa
         }
         else
         {
-            aBulletChar = SubstituteBullet( aBulletChar, aFontDesc );
             mpFS->singleElementNS(XML_a, XML_buChar, XML_char, USS( OUString( aBulletChar ) ), FSEND);
         }
     }

sd/qa/unit/export-tests.cxx

@@ -56,6 +56,7 @@
 #include <com/sun/star/chart2/data/XDataSequence.hpp>
 #include <com/sun/star/chart2/data/XNumericalDataSequence.hpp>
 #include <com/sun/star/awt/XBitmap.hpp>
+#include <com/sun/star/awt/FontDescriptor.hpp>
 #include <com/sun/star/graphic/XGraphic.hpp>
 #include <com/sun/star/frame/XStorable.hpp>
 #include <com/sun/star/drawing/FillStyle.hpp>
@@ -100,6 +101,7 @@ public:
     void testRightToLeftParaghraph();
     void testTableCellBorder();
     void testBulletColor();
+    void testBulletCharAndFont();
     void testBulletMarginAndIndentation();
     void testParaMarginAndindentation();
 
@@ -134,6 +136,7 @@ public:
     CPPUNIT_TEST(testRightToLeftParaghraph);
     CPPUNIT_TEST(testTableCellBorder);
     CPPUNIT_TEST(testBulletColor);
+    CPPUNIT_TEST(testBulletCharAndFont);
     CPPUNIT_TEST(testBulletMarginAndIndentation);
     CPPUNIT_TEST(testParaMarginAndindentation);
 
@@ -937,6 +940,38 @@ void SdExportTest::testBulletColor()
     CPPUNIT_ASSERT_EQUAL_MESSAGE( "Bullet's color is wrong!", sal_uInt32(0xff0000),pNumFmt->GetNumRule()->GetLevel(0).GetBulletColor().GetColor());
 }
 
+void SdExportTest::testBulletCharAndFont()
+{
+    ::sd::DrawDocShellRef xDocShRef = loadURL( getURLFromSrc("/sd/qa/unit/data/odp/bulletCharAndFont.odp"), ODP);
+    xDocShRef = saveAndReload( xDocShRef, PPTX );
+    uno::Reference< drawing::XDrawPagesSupplier > xDoc( xDocShRef->GetDoc()->getUnoModel(), uno::UNO_QUERY_THROW );
+    uno::Reference< drawing::XDrawPage > xPage( xDoc->getDrawPages()->getByIndex(0), uno::UNO_QUERY_THROW );
+    uno::Reference< drawing::XShape > xShape(xPage->getByIndex(0), uno::UNO_QUERY);
+    uno::Reference<text::XText> xText = uno::Reference<text::XTextRange>(xShape, uno::UNO_QUERY_THROW)->getText();
+    uno::Reference<container::XEnumerationAccess> paraEnumAccess;
+    paraEnumAccess.set(xText, uno::UNO_QUERY);
+    uno::Reference<container::XEnumeration> paraEnum = paraEnumAccess->createEnumeration();
+    uno::Reference<text::XTextRange> const xParagraph(paraEnum->nextElement(), uno::UNO_QUERY_THROW);
+    uno::Reference< beans::XPropertySet > xPropSet( xParagraph, uno::UNO_QUERY_THROW );
+    uno::Reference<container::XIndexAccess> xLevels(xPropSet->getPropertyValue("NumberingRules"), uno::UNO_QUERY);
+    uno::Sequence<beans::PropertyValue> aProps;
+    xLevels->getByIndex(0) >>= aProps; // 1st level
+    OUString    sBulletChar(sal_Unicode(0xf06c));
+    for (int i = 0; i < aProps.getLength(); ++i)
+    {
+        const beans::PropertyValue& rProp = aProps[i];
+        if (rProp.Name == "BulletChar")
+            CPPUNIT_ASSERT_EQUAL_MESSAGE( "BulletChar incorrect.", sBulletChar ,rProp.Value.get<OUString>());
+        if (rProp.Name == "BulletFont")
+        {
+            awt::FontDescriptor aFontDescriptor;
+            rProp.Value >>= aFontDescriptor;
+            CPPUNIT_ASSERT_EQUAL_MESSAGE( "BulletFont incorrect.", OUString("Wingdings"),aFontDescriptor.Name);
+        }
+    }
+    xDocShRef->DoClose();
+}
+
 #if !defined WNT
 
 void SdExportTest::testBnc822341()