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  1. Qt
  2. QTBUG-10615 Allow better font rendering for projects like Koffice
  3. QTBUG-5053

Support subpixel positioning of glyphs in Raster paint engine on Mac OS X

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Details

    • Sub-task
    • Resolution: Done
    • P1: Critical
    • 4.8.0
    • GUI: Text handling
    • None
    • macOS
    • b7ef9d49a969f512ecbc7ad940642f3a74e348ad, 46d2d05e3a95eefae1c72f55d57cbea4ce27d14e

    Description

      The font engine on Mac uses unhinted glyphs and thus permits subpixel positioning of the glyphs using cleartype rendering to express coverage of a pixel.

      Implement support for this in the raster paint engine by maintaining three different glyph caches, one for each subpixel position (0, 1/3, and 2/3 of the pixel is covered.)

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          replaces

          Bug - A problem which impairs or prevents the functions of the product. QTBUG-22335 Cocoa-based Qt incorrectly renders fonts when paint context is QImage

          • Not Evaluated - Not yet evaluated/prioritized
          • Closed
          resulted in

          Sub-task - The sub-task of the issue QTBUG-12279 Support sub-pixel positioning on Freetype

          • P2: Important - Urgent, should be fixed, but will not stop the release.
          • Closed
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              esabraha Eskil Abrahamsen Blomfeldt
              esabraha Eskil Abrahamsen Blomfeldt
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              Dates

                Created:
                Updated:
                Resolved:

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