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  1. Qt
  2. QTBUG-20007

Symbian: Do not add linked fonts to the QFontDatabase

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Details

    • Bug
    • Resolution: Done
    • P1: Critical
    • 4.7.4
    • 4.7.4
    • GUI: Font handling
    • Symbian
    • fa344b355d311fce7954e2fd1a22a87a88194783 6cc32482afd610e2808bde42b6a01dd78b79d809

    Description

      Filter out all linked fonts in qfontdatabase_s60.cpp, registerScreenDeviceFont(). That seems to be possible by using CLinkedTypefaceSpecification::FetchLinkedTypefaceSpecificationL and checkiung for KErrNone.

      Reason: Linked fonts add additional cryptic type face names to the QFontDatabase. Also, I suspect them being the reason for issues like QTBUG-19842, because I immagine that the 'cmap' table for a a linked font is not adjusted the linkage, thus is invalid. And according to QT-5098, skipping linked fonts avoids a huge slowdown in application startup.

      Attachments

        1. qfontcombobox.zip
          11 kB
          Alessandro Portale

        Issue Links

          is required for

          Bug - A problem which impairs or prevents the functions of the product. QTBUG-20379 QFont::setWeight(QFont::Bold) is not working for default QFont | Regression in wk_25 from wk_21

          • 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
          relates to

          Bug - A problem which impairs or prevents the functions of the product. QTBUG-19842 Qt application will crash at startup or display mess if symbian system font is set to a linked font.

          • Not Evaluated - Not yet evaluated/prioritized
          • Closed

          Bug - A problem which impairs or prevents the functions of the product. QTBUG-20008 Symbian: Wrong Chinese characters are displayed

          • Not Evaluated - Not yet evaluated/prioritized
          • Closed

          Bug - A problem which impairs or prevents the functions of the product. QTBUG-20728 changing font size in examples\richtext\calendar can lock-up or crash a phone

          • 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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              portale Alessandro Portale
              portale Alessandro Portale
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              Dates

                Created:
                Updated:
                Resolved:

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