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Fix regression in metric calculation of text with mnemonics

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Even when we do not intend to display the text, we still need to go
through the processing of mnemonics to remove them from the text.

Instead of capping the max underlines to 0, the TextDontPrint option now
just saves adding the underline formats.

Task-number: QTBUG-41593
Change-Id: I67790650dbed0092de2c63e5d5a9349dc02d5846
Reviewed-by: Friedemann Kleint <Friedemann.Kleint@digia.com>
Reviewed-by: Robert Loehning <robert.loehning@digia.com>
Reviewed-by: Eskil Abrahamsen Blomfeldt <eskil.abrahamsen-blomfeldt@digia.com>
This commit is contained in:
Allan Sandfeld Jensen 2014-09-26 12:36:43 +02:00
parent f5f300ba82
commit 0175ad4d3f
2 changed files with 13 additions and 5 deletions
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6
src/gui/painting/qpainter.cpp
View File

@ -7442,10 +7442,6 @@ start_lengthVariant:
}
}
// no need to do extra work for underlines if we don't paint
if (tf & Qt::TextDontPrint)
maxUnderlines = 0;
QList<QTextLayout::FormatRange> underlineFormats;
int length = offset - old_offset;
if ((hidemnmemonic || showmnemonic) && maxUnderlines > 0) {
@ -7460,7 +7456,7 @@ start_lengthVariant:
--l;
if (!l)
break;
if (*cin != QLatin1Char('&') && !hidemnmemonic) {
if (*cin != QLatin1Char('&') && !hidemnmemonic && !(tf & Qt::TextDontPrint)) {
QTextLayout::FormatRange range;
range.start = cout - cout0;
range.length = 1;

12
tests/auto/gui/text/qfontmetrics/tst_qfontmetrics.cpp
View File

@ -64,6 +64,7 @@ private slots:
void elidedMultiLengthF();
void inFontUcs4();
void lineWidth();
void mnemonicTextWidth();
};
tst_QFontMetrics::tst_QFontMetrics()
@ -331,5 +332,16 @@ void tst_QFontMetrics::lineWidth()
QVERIFY(smallFontMetrics.lineWidth() < bigFontMetrics.lineWidth());
}
void tst_QFontMetrics::mnemonicTextWidth()
{
// QTBUG-41593
QFont f;
QFontMetrics fm(f);
const QString f1 = "File";
const QString f2 = "&File";
QCOMPARE(fm.size(Qt::TextShowMnemonic, f1), fm.size(Qt::TextShowMnemonic, f2));
QCOMPARE(fm.size(Qt::TextHideMnemonic, f1), fm.size(Qt::TextHideMnemonic, f2));
}
QTEST_MAIN(tst_QFontMetrics)
#include "tst_qfontmetrics.moc"