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tdf#119785 Implement the EMF TA_RTLREADING alignment flag

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EMF has two ways to indicate that text should be treated as RTL:

- The ExtTextOut ETO_RTLREADING flag
- The SetTextAlign TA_RTLREADING flag

Previously, only the former was implemented. This change implements the
latter.

Change-Id: If1023b4a0a3b6eb2ce47d2b764edbfd1a5c0dd5a
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/173579
Reviewed-by: Jonathan Clark <jonathan@libreoffice.org>
Tested-by: Jenkins
This commit is contained in:
Jonathan Clark
2024-09-17 14:48:16 -06:00
parent d14e79bf76
commit 3bd4a79772
4 changed files with 34 additions and 0 deletions
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6
drawinglayer/source/tools/primitive2dxmldump.cxx
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@@ -930,6 +930,12 @@ void Primitive2dXmlDump::decomposeAndWrite(
const drawinglayer::attribute::FontAttribute& aFontAttribute
= rTextSimplePortionPrimitive2D.getFontAttribute();
rWriter.attribute("familyname", aFontAttribute.getFamilyName());
if (aFontAttribute.getRTL())
{
rWriter.attribute("rtl", std::u16string_view{ u"true" });
}
const std::vector<double> aDx = rTextSimplePortionPrimitive2D.getDXArray();
if (aDx.size())
{

15
emfio/qa/cppunit/emf/EmfImportTest.cxx
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@@ -1855,6 +1855,21 @@ CPPUNIT_TEST_FIXTURE(Test, testPdfInEmf)
aBitmapEx.GetAlpha(size.Width() / 2, size.Height() / 2));
}
CPPUNIT_TEST_FIXTURE(Test, testAlignRtlReading)
{
// EMF file with the TA_RTLREADING alignment flag
Primitive2DSequence aSequence = parseEmf(u"/emfio/qa/cppunit/emf/data/TestAlignRtlReading.emf");
CPPUNIT_ASSERT_EQUAL(1, static_cast<int>(aSequence.getLength()));
drawinglayer::Primitive2dXmlDump dumper;
xmlDocUniquePtr pDocument = dumper.dumpAndParse(Primitive2DContainer(aSequence));
CPPUNIT_ASSERT(pDocument);
assertXPath(pDocument, aXPathPrefix + "mask/textsimpleportion", 4);
assertXPath(pDocument, aXPathPrefix + "mask/textsimpleportion[1]", "rtl"_ostr, u"true"_ustr);
assertXPathNoAttribute(pDocument, aXPathPrefix + "mask/textsimpleportion[2]", "rtl"_ostr);
assertXPath(pDocument, aXPathPrefix + "mask/textsimpleportion[3]", "rtl"_ostr, u"true"_ustr);
}
CPPUNIT_PLUGIN_IMPLEMENT();
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */

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emfio/qa/cppunit/emf/data/TestAlignRtlReading.emf Normal file
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13
emfio/source/reader/mtftools.cxx
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@@ -1712,6 +1712,19 @@ namespace emfio
if ( mnLatestTextAlign != mnTextAlign )
{
bChangeFont = true;
if ((mnLatestTextAlign & TA_RTLREADING) != (mnTextAlign & TA_RTLREADING))
{
auto nFlags = vcl::text::ComplexTextLayoutFlags::Default;
if (mnTextAlign & TA_RTLREADING)
{
nFlags = vcl::text::ComplexTextLayoutFlags::BiDiRtl
| vcl::text::ComplexTextLayoutFlags::TextOriginLeft;
}
mpGDIMetaFile->AddAction(new MetaLayoutModeAction(nFlags));
}
mnLatestTextAlign = mnTextAlign;
mpGDIMetaFile->AddAction( new MetaTextAlignAction( eTextAlign ) );
}