commit 34df6c92e513c5f428eff7c9cb1d6b9831eeb323
author Khaled Hosny <khaled@libreoffice.org> Mon Jun 12 19:24:35 2023 +0300
committer خالد حسني <khaled@libreoffice.org> Tue Jun 13 14:44:54 2023 +0200
tree 3387fd476ed6363140fdd984eab9fa53dc1f91e0
parent 7484b1054acd378b94ea4e41a8644fd0e8000ba9

tdf#152048: Add test

Change-Id: I321e9f400b0d96b9c3193547f184342ce0c69f7c
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/152907
Tested-by: Jenkins
Reviewed-by: خالد حسني <khaled@libreoffice.org>
(cherry picked from commit 507759b449415e897ac0a1de03e8dd685b1e50fe)
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/152982

vcl/qa/cppunit/complextext.cxx

diff --git a/vcl/qa/cppunit/complextext.cxx b/vcl/qa/cppunit/complextext.cxx
index 6a39589..36fe89c9 100644
--- a/vcl/qa/cppunit/complextext.cxx
+++ b/vcl/qa/cppunit/complextext.cxx
@@ -362,4 +362,42 @@ CPPUNIT_TEST_FIXTURE(VclComplexTextTest, testGdefCaret)
#endif
}

CPPUNIT_TEST_FIXTURE(VclComplexTextTest, testTdf152048)
{
#if HAVE_MORE_FONTS
    OUString aText(u"می‌شود");

    vcl::Font aFont(u"Noto Naskh Arabic", u"Regular", Size(0, 72));

    ScopedVclPtrInstance<VirtualDevice> pOutDev;
    pOutDev->SetFont(aFont);

    // get an compare the default text array
    std::vector<sal_Int32> aRefCharWidths{ 33, 82, 82, 129, 163, 193 };
    tools::Long nRefTextWidth(193);

    KernArray aCharWidths;
    tools::Long nTextWidth = pOutDev->GetTextArray(aText, &aCharWidths);

    CPPUNIT_ASSERT_EQUAL(aRefCharWidths, aCharWidths.get_subunit_array());
    CPPUNIT_ASSERT_EQUAL(nRefTextWidth, nTextWidth);
    CPPUNIT_ASSERT_EQUAL(sal_Int32(nTextWidth), aCharWidths.back());

    // Simulate Kashida insertion using Kashida array and extending text array
    // to have room for Kashida.
    std::vector<sal_Bool> aKashidaArray{ false, false, false, true, false, false };
    auto nKashida = 200;

    aCharWidths.set(3, aCharWidths[3] + nKashida);
    aCharWidths.set(4, aCharWidths[4] + nKashida);
    aCharWidths.set(5, aCharWidths[5] + nKashida);
    auto pLayout = pOutDev->ImplLayout(aText, 0, -1, Point(0, 0), 0, aCharWidths, aKashidaArray);

    // Without the fix this fails with:
    // - Expected: 393
    // - Actual  : 511
    CPPUNIT_ASSERT_EQUAL(DeviceCoordinate(nRefTextWidth + nKashida), pLayout->GetTextWidth());
#endif
}

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