2013-08-28 00:44:27 +00:00
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Issues with Scintilla for Qt
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Qt reports character descenders are 1 pixel shorter than they really are.
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There is a tweak in the code to add a pixel in. This may have to be reviewed for Qt 5.
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There's a comment in the Qt code for Windows:
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2015-06-07 21:19:26 +00:00
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// ### we subtract 1 to even out the historical +1 in QFontMetrics's
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2013-08-28 00:44:27 +00:00
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// ### height=asc+desc+1 equation. Fix in Qt5.
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The clocks used aren't great. QTime is a time since midnight clock so wraps around and
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is only accurate to, at best, milliseconds.
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On OS X drawing text into a pixmap moves it around 1 pixel to the right compared to drawing
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it directly onto a window. Buffered drawing turned off by default to avoid this.
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Reported as QTBUG-19483.
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Only one QPainter can be active on any widget at a time. Scintilla only draws into one
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widget but reenters for measurement.
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