[LyX/master] Replace QFontMetrics::width() by horizontalAdvance() in Qt>=5.11

[Jean-Marc Lasgouttes]

Le 30/10/2020 à 13:13, Jean-Marc Lasgouttes a écrit :
> Le 25/10/2020 à 03:58, Richard Kimberly Heck a écrit :
>> On 10/24/20 2:17 PM, Jean-Marc Lasgouttes wrote:
>>> Le 24/10/2020 à 19:38, Jean-Marc Lasgouttes a écrit :
>>>> commit 21422dd6527754d8b7876a6e11b686cd726321ed
>>>> Author: Jean-Marc Lasgouttes <lasgouttes at lyx.org>
>>>> Date:   Sat Oct 24 19:29:34 2020 +0200
>>>>
>>>>       Replace QFontMetrics::width() by horizontalAdvance() in Qt>=5.11
>>>>            The method horizontalAdvance() replaces width() starting
>>>> with Qt 5.11.
>>>>       To handle this, all direct calls to QFontMetrics::width() are
>>>> replaced
>>>>       by calls to GuiFontMetrics::width(), and the code for
>>>>       GuiFontMetrics::width(QChar) uses horizontalAdvance on newer Qt
>>>>       versions.
>>>
>>> If this turns out to work well, it will be candidate for branch.
>>
>> Keep me posted.
> 
> This can wait until after 2.3.6.

I backported this to branch at f4314b6461a. Scott, you should backport 
your own changes, since compiling branch is quite painful right now on 
recent Qt.

JMarc