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  1. Qt
  2. QTBUG-74725

Certain glyphs are counted double in QTextEdit ("non-BMP code points that are represented using surrogate pairs")

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Details

    • Bug
    • Resolution: Invalid
    • P2: Important
    • None
    • 5.9, 5.12
    • None
    • All

    Description

      Opening or pasting text in(to) a QTextEdit view that has UTF16 glyphs leads to the following observations:

      • the glyphs are shown correctly if a suitable (fallback) font is available
      • the cursor behaves as expected when controlled via the keyboard: 1 press only is required to move the cursor over the glyphs in question, or to delete them.
      • the reported column position is wrong, and counts each of these glyphs twice.

       

      A small demonstrator program: github.com/RJVB/qtwheeltest ; build and start with the `–QTextEdit` option, then copy the text from the attachment into the top window (the one that has protected and the col/line numbers in the titlebar).

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            ritt.ks Konstantin Ritt
            rjvbertin René Bertin
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            Dates

              Created:
              Updated:
              Resolved:

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