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  1. Qt
  2. QTBUG-22335

Cocoa-based Qt incorrectly renders fonts when paint context is QImage

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Details

    • Bug
    • Resolution: Duplicate
    • Not Evaluated
    • None
    • 4.6.3, 4.7.4
    • GUI: Font handling
    • None
    • Mac OS X 10.6/10.7, amd64

    Description

      Fonts looks horrible when rendered to QImage using Cocoa-based Qt. Carbon version looks much better.
      Turning antialiasing on/off doesn't solve it.

      Switching from QImage to QPixmap fixes issue but this is not always acceptable

      Attachments

        1. font_rendering.cpp
          1 kB
        2. qt_fonts_qimage.png
          qt_fonts_qimage.png
          21 kB
        3. qt_fonts_qpixmap.png
          qt_fonts_qpixmap.png
          21 kB

        Issue Links

          is replaced by

          Sub-task - The sub-task of the issue QTBUG-5053 Support subpixel positioning of glyphs in Raster paint engine on Mac OS X

          • P1: Critical - Urgent and Important, will STOP the release if matched with set FixVersion field. This includes regressions from the last version that are not edge cases; Data loss; Build issues; All but the most unlikely crashes/lockups/hanging; Serious usability issues and embarrassing bugs & Bugs critical to a deliverable. This is the highest possible priority for requirements.
          • Closed
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          Activity

            People

              esabraha Eskil Abrahamsen Blomfeldt
              dion Dmitry Nezhevenko
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              Dates

                Created:
                Updated:
                Resolved:

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