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Freetype font rendering on Windows?

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  • C Offline
    C Offline
    culyun
    wrote on last edited by
    #11

    I don't think you can specify at runtime, but it is an interesting idea...

    But if you're willing to build Qt5 for yourself (not too hard) you can configure the build so that Freetype is used internally by Qt on Windows (widget apps).

    [quote author="lunatic fringe" date="1416527650"]How can i programmatically select the freetype engine on startup?
    On the windows platform we have a (ttf) font looks good with a Qml App and ugly on a Widget App when not using the command line option to use the freetype font engine. This is still unclear to me.

    Regards.[/quote]

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    • C Offline
      C Offline
      culyun
      wrote on last edited by
      #12

      I don't think you can specify at runtime, but it is an interesting idea...

      But if you're willing to build Qt5 for yourself (not too hard) you can configure the build so that Freetype is used internally by Qt on Windows (widget apps).

      [quote author="lunatic fringe" date="1416527650"]How can i programmatically select the freetype engine on startup?
      On the windows platform we have a (ttf) font looks good with a Qml App and ugly on a Widget App when not using the command line option to use the freetype font engine. This is still unclear to me.

      Regards.[/quote]

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      0
      • L Offline
        L Offline
        lunatic fringe
        wrote on last edited by
        #13

        At least you can manipulate the arguments for QApplication ...
        But i have still difficulties using fonts under windows whether i use the freetype font engine or not.
        We need to use a Bosch font, which looks like
        qml app : !http://burningrain.no-ip.info/images/font_in_qml.png(qml app)!
        widget app: !http://burningrain.no-ip.info/images/font_in_widget.png(widget app)!

        Does anyone knows how to improove the presentation of the font in the qt app ?

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        • L Offline
          L Offline
          lunatic fringe
          wrote on last edited by
          #14

          At least you can manipulate the arguments for QApplication ...
          But i have still difficulties using fonts under windows whether i use the freetype font engine or not.
          We need to use a Bosch font, which looks like
          qml app : !http://burningrain.no-ip.info/images/font_in_qml.png(qml app)!
          widget app: !http://burningrain.no-ip.info/images/font_in_widget.png(widget app)!

          Does anyone knows how to improove the presentation of the font in the qt app ?

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          • C Offline
            C Offline
            culyun
            wrote on last edited by
            #15

            I think all you need is a simple mod to the Qt 5 source.

            In

            .\qtbase\src\plugins\platforms\windows\qwindowsfontdatabase_ft.cpp

            Goto addFontToDatabase

            and modify the line that reads

            const bool antialias = false;

            to

            const bool antialias = true;

            Rebuild Qt, and voila anti-aliasing on Windows.

            [quote author="lunatic fringe" date="1416612075"]At least you can manipulate the arguments for QApplication ...
            But i have still difficulties using fonts under windows whether i use the freetype font engine or not.
            We need to use a Bosch font, which looks like
            qml app : !http://burningrain.no-ip.info/images/font_in_qml.png(qml app)!
            widget app: !http://burningrain.no-ip.info/images/font_in_widget.png(widget app)!

            Does anyone knows how to improove the presentation of the font in the qt app ?[/quote]

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            • C Offline
              C Offline
              culyun
              wrote on last edited by
              #16

              I think all you need is a simple mod to the Qt 5 source.

              In

              .\qtbase\src\plugins\platforms\windows\qwindowsfontdatabase_ft.cpp

              Goto addFontToDatabase

              and modify the line that reads

              const bool antialias = false;

              to

              const bool antialias = true;

              Rebuild Qt, and voila anti-aliasing on Windows.

              [quote author="lunatic fringe" date="1416612075"]At least you can manipulate the arguments for QApplication ...
              But i have still difficulties using fonts under windows whether i use the freetype font engine or not.
              We need to use a Bosch font, which looks like
              qml app : !http://burningrain.no-ip.info/images/font_in_qml.png(qml app)!
              widget app: !http://burningrain.no-ip.info/images/font_in_widget.png(widget app)!

              Does anyone knows how to improove the presentation of the font in the qt app ?[/quote]

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              0
              • L Offline
                L Offline
                lunatic fringe
                wrote on last edited by
                #17

                thanks for the tip, but this does not help :-(

                I tried what's been pointed to in that "thead":http://www.qtcentre.org/archive/index.php/t-57280.html with succes but this is currently for me not the way to go

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                • L Offline
                  L Offline
                  lunatic fringe
                  wrote on last edited by
                  #18

                  thanks for the tip, but this does not help :-(

                  I tried what's been pointed to in that "thead":http://www.qtcentre.org/archive/index.php/t-57280.html with succes but this is currently for me not the way to go

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                  0
                  • A Offline
                    A Offline
                    aiai99
                    wrote on last edited by
                    #19

                    My application works with Freetype on windows. I compiled Qt source 5.3. but i don't use freetype included in qt source. I download freetype2.5.3 and compile it as DLL using VS.

                    The step is following.

                    1. Compile qtbase source using -system-freetype
                      configure.bat ..... -system-freetype

                    2. change platformsupport/basic/basic.pri

                      } else:contains(QT_CONFIG, system-freetype) {
                      # pull in the proper freetype2 include directory
                      # include($$QT_SOURCE_TREE/config.tests/unix/freetype/freetype.pri)

                           #here is your compiled freetype 
                           INCLUDEPATH +=C:/projects/freetype-2.5.3/include  
                           LIBS += -LC:/projects/freetype-2.5.3/lib/x64 -lfreetyped -lfreetype  
                      

                    }
                    3. if necessary, add following into gui/text/text.pri
                    INCLUDEPATH +=C:/projects/freetype-2.5.3/include
                    LIBS += -LC:/projects/freetype-2.5.3/lib/x64 -lfreetyped -lfreetype

                    1. build your qbase

                    2. enable your application work with freetype
                      copy your built qt related dll into your application bin dir
                      copy freetype dll into your application bin dir
                      create file named qt.conf , append a line

                      [Platforms]
                      WindowsArguments = fontengine=freetype

                    and save qt.conf into your application bin dir

                    that's all it should work for you.

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                    • A Offline
                      A Offline
                      aiai99
                      wrote on last edited by
                      #20

                      My application works with Freetype on windows. I compiled Qt source 5.3. but i don't use freetype included in qt source. I download freetype2.5.3 and compile it as DLL using VS.

                      The step is following.

                      1. Compile qtbase source using -system-freetype
                        configure.bat ..... -system-freetype

                      2. change platformsupport/basic/basic.pri

                        } else:contains(QT_CONFIG, system-freetype) {
                        # pull in the proper freetype2 include directory
                        # include($$QT_SOURCE_TREE/config.tests/unix/freetype/freetype.pri)

                             #here is your compiled freetype 
                             INCLUDEPATH +=C:/projects/freetype-2.5.3/include  
                             LIBS += -LC:/projects/freetype-2.5.3/lib/x64 -lfreetyped -lfreetype  
                        

                      }
                      3. if necessary, add following into gui/text/text.pri
                      INCLUDEPATH +=C:/projects/freetype-2.5.3/include
                      LIBS += -LC:/projects/freetype-2.5.3/lib/x64 -lfreetyped -lfreetype

                      1. build your qbase

                      2. enable your application work with freetype
                        copy your built qt related dll into your application bin dir
                        copy freetype dll into your application bin dir
                        create file named qt.conf , append a line

                        [Platforms]
                        WindowsArguments = fontengine=freetype

                      and save qt.conf into your application bin dir

                      that's all it should work for you.

                      1 Reply Last reply
                      0

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