1berry/qtbase
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

Handle macOS 11 issues in softHyphens test

Browse Source 
Calculate the effective width of the hyphen better, and compare with
ceiled sizes.

Fixes: QTBUG-90698
Change-Id: I7ed2eb44c54240ecb2f8a38e5acf1f32608b2bfb
Reviewed-by: Eskil Abrahamsen Blomfeldt <eskil.abrahamsen-blomfeldt@qt.io>
(cherry picked from commit 0ffdbb21261eee3a9ec1cd541478ee883a12065c)
Reviewed-by: Qt Cherry-pick Bot <cherrypick_bot@qt-project.org>
This commit is contained in:
Allan Sandfeld Jensen 2021-02-01 10:21:04 +01:00 committed by Qt Cherry-pick Bot
parent d95069771b
commit ac05ca5072
2 changed files with 50 additions and 19 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

10
src/gui/text/qtextengine.cpp
View File

@ -1373,9 +1373,15 @@ static void applyVisibilityRules(ushort ucs, QGlyphLayout *glyphs, uint glyphPos
if (!fontEngine->symbol) {
// U+00AD [SOFT HYPHEN] is a default ignorable codepoint,
// so we replace its glyph and metrics with ones for
// U+002D [HYPHEN-MINUS] and make it visible if it appears at line-break
// U+002D [HYPHEN-MINUS] or U+2010 [HYPHEN] and make
// it visible if it appears at line-break
const uint engineIndex = glyphs->glyphs[glyphPosition] & 0xff000000;
glyphs->glyphs[glyphPosition] = fontEngine->glyphIndex('-');
glyph_t glyph = fontEngine->glyphIndex(0x002d);
if (glyph == 0)
glyph = fontEngine->glyphIndex(0x2010);
if (glyph == 0)
glyph = fontEngine->glyphIndex(0x00ad);
glyphs->glyphs[glyphPosition] = glyph;
if (Q_LIKELY(glyphs->glyphs[glyphPosition] != 0)) {
glyphs->glyphs[glyphPosition] |= engineIndex;
QGlyphLayout tmp = glyphs->mid(glyphPosition, 1);

59
tests/auto/gui/text/qtextlayout/tst_qtextlayout.cpp
View File

@ -141,6 +141,7 @@ private slots:
void showLineAndParagraphSeparatorsCrash();
void koreanWordWrap();
void tooManyDirectionalCharctersCrash_qtbug77819();
void softHyphens_data();
void softHyphens();
void min_maximumWidth();
@ -2414,22 +2415,45 @@ void tst_QTextLayout::tooManyDirectionalCharctersCrash_qtbug77819()
tl.endLayout();
}
void tst_QTextLayout::softHyphens_data()
{
QTest::addColumn<int>("fontSize");
QTest::newRow("12") << 12;
QTest::newRow("14") << 14;
QTest::newRow("16") << 16;
}
void tst_QTextLayout::softHyphens()
{
QFETCH(int, fontSize);
QString text = QStringLiteral("xxxx\u00ad") + QStringLiteral("xxxx\u00ad");
QFont font;
font.setPixelSize(14);
font.setPixelSize(fontSize);
font.setHintingPreference(QFont::PreferNoHinting);
const float xAdvance = QFontMetricsF(font).horizontalAdvance(QChar('x'));
const float shyAdvance = QFontMetricsF(font).horizontalAdvance(QChar::SoftHyphen);
if (xAdvance < (shyAdvance + 1.0f))
QSKIP("Default font not suitable for this test.");
const float xAdvance = QFontMetricsF(font).horizontalAdvance(QChar::fromLatin1('x'));
float shyWidth = 0.0f;
QTextLayout layout(text, font);
QTextOption option;
option.setWrapMode(QTextOption::WrapAtWordBoundaryOrAnywhere);
layout.setTextOption(option);
{
// Calculate the effective width of a line-ending hyphen
// This calculation is currently done to work-around odditities on
// macOS 11 (see QTBUG-90698).
QTextLayout test(QStringLiteral("x\u00ad"), font);
// Note: This only works because Qt show the soft-hyphen when ending a text.
// This _could_ be considered a bug and the test would need to be changed
// if we stop doing that.
test.beginLayout();
QTextLine line = test.createLine();
line.setLineWidth(10 * xAdvance);
line.setPosition(QPoint(0, 0));
shyWidth = line.naturalTextWidth() - xAdvance;
test.endLayout();
}
qreal linefit;
// Loose fit
// xxxx- |
// xxxx- |
@ -2438,21 +2462,22 @@ void tst_QTextLayout::softHyphens()
int y = 0;
layout.beginLayout();
QTextLine line = layout.createLine();
line.setLineWidth(qCeil(5 * xAdvance) + 1);
line.setLineWidth(qCeil(5 * xAdvance + shyWidth) + 1);
line.setPosition(QPoint(0, y));
QCOMPARE(line.textStart(), pos);
QCOMPARE(line.textLength(), 5);
QVERIFY(qAbs(line.naturalTextWidth() - (4 * xAdvance + shyAdvance)) <= 1);
linefit = line.naturalTextWidth();
QVERIFY(qAbs(linefit - qCeil(4 * xAdvance + shyWidth)) <= 1.0);
pos += line.textLength();
y += qRound(line.ascent() + line.descent());
line = layout.createLine();
line.setLineWidth(qCeil(5 * xAdvance) + 1);
line.setLineWidth(qCeil(5 * xAdvance + shyWidth) + 1);
line.setPosition(QPoint(0, y));
QCOMPARE(line.textStart(), pos);
QCOMPARE(line.textLength(), 5);
QVERIFY(qAbs(line.naturalTextWidth() - (4 * xAdvance + shyAdvance)) <= 1);
QVERIFY(qAbs(line.naturalTextWidth() - linefit) <= 1.0);
layout.endLayout();
}
@ -2464,21 +2489,21 @@ void tst_QTextLayout::softHyphens()
int y = 0;
layout.beginLayout();
QTextLine line = layout.createLine();
line.setLineWidth(qCeil(4 * xAdvance + shyAdvance) + 1);
line.setLineWidth(qCeil(linefit) + 1);
line.setPosition(QPoint(0, y));
QCOMPARE(line.textStart(), pos);
QCOMPARE(line.textLength(), 5);
QVERIFY(qAbs(line.naturalTextWidth() - (4 * xAdvance + shyAdvance)) <= 1);
QVERIFY(qAbs(line.naturalTextWidth() - linefit) <= 1.0);
pos += line.textLength();
y += qRound(line.ascent() + line.descent());
line = layout.createLine();
line.setLineWidth(qCeil(4 * xAdvance + shyAdvance) + 1);
line.setLineWidth(qCeil(linefit) + 1);
line.setPosition(QPoint(0, y));
QCOMPARE(line.textStart(), pos);
QCOMPARE(line.textLength(), 5);
QVERIFY(qAbs(line.naturalTextWidth() - (4 * xAdvance + shyAdvance)) <= 1);
QVERIFY(qAbs(line.naturalTextWidth() - linefit) <= 1.0);
layout.endLayout();
}
@ -2495,7 +2520,7 @@ void tst_QTextLayout::softHyphens()
line.setPosition(QPoint(0, y));
QCOMPARE(line.textStart(), pos);
QCOMPARE(line.textLength(), 4);
QVERIFY(qAbs(line.naturalTextWidth() - 4 * xAdvance) <= 1);
QVERIFY(qAbs(line.naturalTextWidth() - qCeil(4 * xAdvance)) <= 1.0);
pos += line.textLength();
y += qRound(line.ascent() + line.descent());
@ -2505,7 +2530,7 @@ void tst_QTextLayout::softHyphens()
line.setPosition(QPoint(0, y));
QCOMPARE(line.textStart(), pos);
QCOMPARE(line.textLength(), 5);
QVERIFY(qAbs(line.naturalTextWidth() - 4 * xAdvance) <= 1);
QVERIFY(qAbs(line.naturalTextWidth() - qCeil(4 * xAdvance)) <= 1.0);
pos += line.textLength();
y += qRound(line.ascent() + line.descent());
@ -2515,7 +2540,7 @@ void tst_QTextLayout::softHyphens()
line.setPosition(QPoint(0, y));
QCOMPARE(line.textStart(), pos);
QCOMPARE(line.textLength(), 1);
QVERIFY(qAbs(line.naturalTextWidth() - shyAdvance) <= 1);
QVERIFY(qAbs(line.naturalTextWidth() - shyWidth) <= 1.0);
layout.endLayout();
}
}