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Font changes not aplying

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fonteglfs rpi2raspberry pi 2
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  • SGaistS SGaist

    Did you check that the application can find it ? QFontDatabase comes to mind for that.

    cxamC Offline
    cxamC Offline
    cxam
    wrote on last edited by
    #5

    @SGaist said:

    QFontDatabase

    So What I did using QFontDatabase:

    QFontDatabase::addApplicationFont( "/usr/share/fonts/truetype/Open_Sans/OpenSans-Regular.ttf");
    

    But nothing happened, so I checked that the font was currently installed using

    fc-list
    

    And indeed, it was installed but I don't know why not recognized by Qt.

    Stay Hungry, Stay Foolish

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    • SGaistS Offline
      SGaistS Offline
      SGaist
      Lifetime Qt Champion
      wrote on last edited by
      #6

      Did you check the returned id from addApplicationFont ?

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

      cxamC 1 Reply Last reply
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      • SGaistS SGaist

        Did you check the returned id from addApplicationFont ?

        cxamC Offline
        cxamC Offline
        cxam
        wrote on last edited by
        #7

        @SGaist More or less, what I did to test that the font is working is this:

        int id = QFontDatabase::addApplicationFont( "/usr/share/fonts/truetype/Open_Sans/OpenSans-Regular.ttf");
        QString family = QFontDatabase::applicationFontFamilies(id).at(0);
        QFont monospace(family);
        qApp->setFont(monospace);
        

        But it doesn't work.... No idea what can be happening

        Stay Hungry, Stay Foolish

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        • SGaistS Offline
          SGaistS Offline
          SGaist
          Lifetime Qt Champion
          wrote on last edited by
          #8

          What is the value of id ?

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

          cxamC 1 Reply Last reply
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          • SGaistS SGaist

            What is the value of id ?

            cxamC Offline
            cxamC Offline
            cxam
            wrote on last edited by
            #9

            @SGaist I'm trying to show the value of the "id" variable through QDebug and the Application output but it's not showing.

            Stay Hungry, Stay Foolish

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            • SGaistS Offline
              SGaistS Offline
              SGaist
              Lifetime Qt Champion
              wrote on last edited by
              #10

              Use the debugger then or a dummy widget.

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

              cxamC 1 Reply Last reply
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              • SGaistS SGaist

                Use the debugger then or a dummy widget.

                cxamC Offline
                cxamC Offline
                cxam
                wrote on last edited by
                #11

                @SGaist Ok, I wasn't pressing the "Debug" button haha, anyways I've found that the "id" value is 0.

                Stay Hungry, Stay Foolish

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                • mrjjM Offline
                  mrjjM Offline
                  mrjj
                  Lifetime Qt Champion
                  wrote on last edited by
                  #12

                  @cxam said:
                  hi, just small question.
                  Since addApplicationFont dont return -1 for error, i wonder if he need to NEW the font as they talk about here
                  https://forum.qt.io/topic/23875/how-to-use-qfontdatabase-addapplicationfont
                  ?

                  cxamC 2 Replies Last reply
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                  • mrjjM mrjj

                    @cxam said:
                    hi, just small question.
                    Since addApplicationFont dont return -1 for error, i wonder if he need to NEW the font as they talk about here
                    https://forum.qt.io/topic/23875/how-to-use-qfontdatabase-addapplicationfont
                    ?

                    cxamC Offline
                    cxamC Offline
                    cxam
                    wrote on last edited by
                    #13

                    @mrjj said:

                    https://forum.qt.io/topic/23875/how-to-use-qfontdatabase-addapplicationfont

                    I think that's the answer to my problem but I'm unable to put it into my program, would you mind making it more explained for me please?

                    Stay Hungry, Stay Foolish

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                    • mrjjM mrjj

                      @cxam said:
                      hi, just small question.
                      Since addApplicationFont dont return -1 for error, i wonder if he need to NEW the font as they talk about here
                      https://forum.qt.io/topic/23875/how-to-use-qfontdatabase-addapplicationfont
                      ?

                      cxamC Offline
                      cxamC Offline
                      cxam
                      wrote on last edited by
                      #14

                      @mrjj Ok, I've got it. Thank you for your help :)

                      Stay Hungry, Stay Foolish

                      mrjjM 1 Reply Last reply
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                      • cxamC cxam

                        @mrjj Ok, I've got it. Thank you for your help :)

                        mrjjM Offline
                        mrjjM Offline
                        mrjj
                        Lifetime Qt Champion
                        wrote on last edited by
                        #15

                        @cxam
                        so did it make any difference?

                        cxamC 1 Reply Last reply
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                        • mrjjM mrjj

                          @cxam
                          so did it make any difference?

                          cxamC Offline
                          cxamC Offline
                          cxam
                          wrote on last edited by
                          #16

                          @mrjj Yes, What I did was

                          QFontDatabase::addApplicationFont("/usr/share/fonts/truetype/Open_Sans/OpenSans-Regular.ttf");
                          

                          and then select "Open Sans" on the QtDesigner

                          Stay Hungry, Stay Foolish

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