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  1. Qt
  2. QTBUG-40912

Incorrect rendering of soft hyphens in Qt WebKit (regression)

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Details

    • Bug
    • Resolution: Done
    • P2: Important
    • 5.4.0 Beta
    • 5.3.1
    • WebKit
    • None
    • linux, 64bit, Arch both with distro packages and compiled from source.

    Description

      Soft hyphens are incorrectly rendered as spaces on linux by QWebView. Run the attached trivial PyQt script which simply creates QWebView and adds some text with soft hyphens in it. The soft hyphens are rendered as spaces. QWebView prints the following errors to console:

      load glyph failed err=6 face=0x1f80c90, glyph=2793

      This behavior is seen on linux, but not on windows. Did not bother to test OS X. Attached a screenshot showing incorrect rendering.

      Attachments

        1. all.patch
          3 kB
        2. bad.png
          bad.png
          4 kB
        3. full_fix.patch
          5 kB
        4. shy.png
          shy.png
          1 kB
        5. shy-osx.png
          shy-osx.png
          8 kB
        6. soft_hyphens_none.png
          soft_hyphens_none.png
          196 kB
        7. soft_hyphens_yes.png
          soft_hyphens_yes.png
          205 kB
        8. test.py
          0.5 kB
        9. test.zip
          0.7 kB
        10. test2.py
          0.5 kB
        11. verdana.ttf
          182 kB

        Issue Links

          replaces

          Bug - A problem which impairs or prevents the functions of the product. QTBUG-38884 QWebView font rendering bug on fh-worms.de (letter spacing)

          • Not Evaluated - Not yet evaluated/prioritized
          • Closed
          For Gerrit Dashboard: QTBUG-40912
          # Subject Branch Project Status CR V
          93124,3 Fix advance of zero-width spaces in fonts that omits the glyph 5.4 qt/qtbase Status: MERGED +2 0
          93296,4 Do not let platform font-engine handle zero-width spaces 5.4 qt/qtwebkit Status: MERGED +2 0

          Activity

            People

              allan.jensen Allan Sandfeld Jensen
              kovid Kovid Goyal
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              1 Vote for this issue
              Watchers:
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              Dates

                Created:
                Updated:
                Resolved:

                Gerrit Reviews

                  There are no open Gerrit changes