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QPainter font antialiasing BUGGY

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  • R Offline
    R Offline
    rileo8
    wrote on last edited by
    #1

    Hi,

    I'm using QPAinter drawText to paint a text using a font.
    The problem is thata antialiasing is not working so the text is ugly to see.
    Here is the code:

    @ QPainter customPainter(this);
    QPen pen( QColor(0, 0, 0));
    pen.setWidth( 0 );
    customPainter.setPen( pen );
    customPainter.setBackground(QBrush(QColor(0, 0, 0)));
    customPainter.setBrush(QBrush(QColor(0, 0, 0)));

    customPainter.setRenderHint(QPainter::TextAntialiasing,true);

    QFontDatabase database;
    QFont font = database.font("Tw Cen MT", "Normal",40);
    customPainter.setFont(font);

    customPainter.drawText(0,0,300,50,Qt::AlignLeft,"Galileo");@

    Antialiasing of paths works great while on font it is ugly..

    I found that the problem seems to be in the Font antialiasing...it seems to be buggy on Qt (4.8) ..anyone had this issue?

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    • R Offline
      R Offline
      rileo8
      wrote on last edited by
      #2

      I found that the problem seems to be in the Font antialiasing...it seems to be buggy on Qt (4.8) ..anyone had this issue?

      1 Reply Last reply
      0
      • SGaistS Offline
        SGaistS Offline
        SGaist
        Lifetime Qt Champion
        wrote on last edited by
        #3

        Hi,

        You should check the "bug report system":http://bugreports.qt-project.org to see whether it's something known. Also are you using the latest version of Qt 4.8 ?

        Interested in AI ? www.idiap.ch
        Please read the Qt Code of Conduct - https://forum.qt.io/topic/113070/qt-code-of-conduct

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        • R Offline
          R Offline
          rileo8
          wrote on last edited by
          #4

          Hi,

          im using this version:

          http://download.qt-project.org/official_releases/qt/4.8/4.8.5/qt-everywhere-opensource-src-4.8.5.zip.mirrorlist

          I already checked on the bug report but seems there is no issue like my...so maybe I'm doing something wrong?

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          • SGaistS Offline
            SGaistS Offline
            SGaist
            Lifetime Qt Champion
            wrote on last edited by
            #5

            If you can come up with a minimal compilable example that reproduce this behavior then it might be a bug

            Interested in AI ? www.idiap.ch
            Please read the Qt Code of Conduct - https://forum.qt.io/topic/113070/qt-code-of-conduct

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