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Warn that computational time follows length of text input

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We have no reliable way of cutting the text shorter without side-
effects, so leave that to the users.

Task-number: QTBUG-109838
Change-Id: I280d2dec9d6e0cd6b4d57edac231ae99420d8569
Reviewed-by: Eskil Abrahamsen Blomfeldt <eskil.abrahamsen-blomfeldt@qt.io>
(cherry picked from commit bea15cdfa4de5fb9fa1614ef93b54df7139423fa)
Reviewed-by: Qt Cherry-pick Bot <cherrypick_bot@qt-project.org>
This commit is contained in:
Allan Sandfeld Jensen 2023-02-14 10:58:16 +01:00 committed by Qt Cherry-pick Bot
parent 0d6a02bb78
commit cc473646ec
1 changed files with 4 additions and 2 deletions
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6
src/gui/text/qfontmetrics.cpp
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@ -486,7 +486,8 @@ static constexpr QLatin1Char s_variableLengthStringSeparator('\x9c');
/*!
Returns the horizontal advance in pixels of the first \a len characters of \a
text. If \a len is negative (the default), the entire string is
used.
used. The entire length of \a text is analysed even if \a len is substantially
shorter.
This is the distance appropriate for drawing a subsequent character
after \a text.
@ -1399,7 +1400,8 @@ qreal QFontMetricsF::rightBearing(QChar ch) const
/*!
Returns the horizontal advance in pixels of the first \a length characters of \a
text. If \a length is negative (the default), the entire string is
used.
used. The entire length of \a text is analysed even if \a length is substantially
shorter.
The advance is the distance appropriate for drawing a subsequent
character after \a text.