tdf#112208 rtfimport: fix missing paragraph first line indent

This is a followup to commit f528f949
adding ParaFirstLineIndent to that commit's Para(Left|Right)Margin.

I also added code for hanging indents, but it doesn't look like that
case will ever hit. Just added for completeness. My test unit
was created in Word as a hanging indent, but it invokes the
firstLine case...

Change-Id: I2b04866b9eb4b085503f3b7d3b6e97d4f9e3d19c
Reviewed-on: https://gerrit.libreoffice.org/41901Reviewed-by: Justin Luth <justin_luth@sil.org>
Tested-by: Justin Luth <justin_luth@sil.org>

sw/qa/extras/rtfexport/rtfexport2.cxx

@@ -980,6 +980,12 @@ DECLARE_RTFEXPORT_TEST(testTdf106953, "tdf106953.rtf")
     CPPUNIT_ASSERT_EQUAL(beans::PropertyState_DIRECT_VALUE, ePropertyState);
 }
 
+DECLARE_RTFEXPORT_TEST(testTdf112208, "tdf112208_hangingIndent.rtf")
+{
+    CPPUNIT_ASSERT_EQUAL(static_cast<sal_Int32>(-2000), getProperty<sal_Int32>(getParagraph(1), "ParaFirstLineIndent"));
+    CPPUNIT_ASSERT_EQUAL(1, getPages());
+}
+
 DECLARE_RTFEXPORT_TEST(testParaBottomMargin, "para-bottom-margin.rtf")
 {
     uno::Reference<beans::XPropertySet> xPropertySet(getStyles("ParagraphStyles")->getByName("Standard"), uno::UNO_QUERY);

writerfilter/source/rtftok/rtfsprm.cxx

@@ -168,6 +168,8 @@ static bool isSPRMDeduplicateBlacklist(Id nId)
     // possibly from the numbering.
     case NS_ooxml::LN_CT_Ind_left:
     case NS_ooxml::LN_CT_Ind_right:
+    case NS_ooxml::LN_CT_Ind_firstLine:
+    case NS_ooxml::LN_CT_Ind_hanging:
     // \htmautsp arrives after the style table, so only the non-style value is
     // correct, keep these.
     case NS_ooxml::LN_CT_Spacing_beforeAutospacing: