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Diffstat (limited to 'qt/ScintillaEditBase/Notes.txt')
| -rw-r--r-- | qt/ScintillaEditBase/Notes.txt | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/qt/ScintillaEditBase/Notes.txt b/qt/ScintillaEditBase/Notes.txt new file mode 100644 index 000000000..6658aaa7a --- /dev/null +++ b/qt/ScintillaEditBase/Notes.txt @@ -0,0 +1,18 @@ + +Issues with Scintilla for Qt + +Qt reports character descenders are 1 pixel shorter than they really are. +There is a tweak in the code to add a pixel in. This may have to be reviewed for Qt 5. +There's a comment in the Qt code for Windows: + // ### we substract 1 to even out the historical +1 in QFontMetrics's + // ### height=asc+desc+1 equation. Fix in Qt5. + +The clocks used aren't great. QTime is a time since midnight clock so wraps around and +is only accurate to, at best, milliseconds. + +On OS X drawing text into a pixmap moves it around 1 pixel to the right compared to drawing +it directly onto a window. Buffered drawing turned off by default to avoid this. +Reported as QTBUG-19483. + +Only one QPainter can be active on any widget at a time. Scintilla only draws into one +widget but reenters for measurement. |