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  4. QT how to take enum object inside the QList and print accordingly ?
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QT how to take enum object inside the QList and print accordingly ?

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  • A amarism

    @raven-worx I am getting error when i select the Q_ENUM() below the enum. and my enum is there inside the "namespace"

    raven-worxR Offline
    raven-worxR Offline
    raven-worx
    Moderators
    wrote on last edited by
    #4

    @amarism
    show some code

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    A 1 Reply Last reply
    1
    • raven-worxR raven-worx

      @amarism
      show some code

      A Offline
      A Offline
      amarism
      wrote on last edited by amarism
      #5

      @raven-worx this on my .h file

        namespace DC
        {
            enum EnumType {
            FileMetaInformationGroupLength          = 0x00020000,
            FileMetaInformationVersion              = 0x00020001,
            MediaStorageSOPClassUID                 = 0x00020002,
            MediaStorageSOPInstanceUID              = 0x00020003
            .......... 5000
            };
         Q_ENUM(EnumType);
      }
      

      and I am reading the file staticlly here in .cpp file

      QString readFile::SetTagNames(QStandardItemModel *model)
      {
      
      char *DisplayTags[] = { " FileMetaInformationGroupLength ", "FileMetaInformationVersion", "MediaStorageSOPClassUID"             
                                                      , "MediaStorageSOPInstanceUID", "ImplementationClassUID"};
      
      for (int i = 0; i < total ; i++)
      {
      	model->setData(model->index(i, 0), DisplayTags[i]);
      }
      return QString();
      }
      

      reading respective date through

      model->setData(model->index(0, 1), pMetaData->GetAttributeValue(DC::FileMetaInformationGroupLength ).GetCharData());
      	model->setData(model->index(1, 1), pMetaData->GetAttributeValue(DC::FileMetaInformationVersion).GetCharData());
      	model->setData(model->index(2, 1), pMetaData->GetAttributeValue(DC::MediaStorageSOPClassUID).GetCharData());
      	model->setData(model->index(3, 1), pMetaData->GetAttributeValue(DC::MediaStorageSOPInstanceUID).GetCharData());
      
      raven-worxR 1 Reply Last reply
      0
      • A amarism

        @raven-worx this on my .h file

          namespace DC
          {
              enum EnumType {
              FileMetaInformationGroupLength          = 0x00020000,
              FileMetaInformationVersion              = 0x00020001,
              MediaStorageSOPClassUID                 = 0x00020002,
              MediaStorageSOPInstanceUID              = 0x00020003
              .......... 5000
              };
           Q_ENUM(EnumType);
        }
        

        and I am reading the file staticlly here in .cpp file

        QString readFile::SetTagNames(QStandardItemModel *model)
        {
        
        char *DisplayTags[] = { " FileMetaInformationGroupLength ", "FileMetaInformationVersion", "MediaStorageSOPClassUID"             
                                                        , "MediaStorageSOPInstanceUID", "ImplementationClassUID"};
        
        for (int i = 0; i < total ; i++)
        {
        	model->setData(model->index(i, 0), DisplayTags[i]);
        }
        return QString();
        }
        

        reading respective date through

        model->setData(model->index(0, 1), pMetaData->GetAttributeValue(DC::FileMetaInformationGroupLength ).GetCharData());
        	model->setData(model->index(1, 1), pMetaData->GetAttributeValue(DC::FileMetaInformationVersion).GetCharData());
        	model->setData(model->index(2, 1), pMetaData->GetAttributeValue(DC::MediaStorageSOPClassUID).GetCharData());
        	model->setData(model->index(3, 1), pMetaData->GetAttributeValue(DC::MediaStorageSOPInstanceUID).GetCharData());
        
        raven-worxR Offline
        raven-worxR Offline
        raven-worx
        Moderators
        wrote on last edited by
        #6

        @amarism said in QT how to take enum object inside the QList and print accordingly ?:

        namespace DC
        {
        enum EnumType {
        FileMetaInformationGroupLength = 0x00020000,
        FileMetaInformationVersion = 0x00020001,
        MediaStorageSOPClassUID = 0x00020002,
        MediaStorageSOPInstanceUID = 0x00020003
        .......... 5000
        };
        Q_ENUM(EnumType);
        }

        as i mentioned you should use Q_NAMESPACE!

        namespace DC {
             Q_NAMESPACE
             ...
        }
        

        --- SUPPORT REQUESTS VIA CHAT WILL BE IGNORED ---
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        1 Reply Last reply
        3
        • raven-worxR raven-worx

          @amarism

          inside a Q_OBJECT, Q_GADGET or Q_NAMESPACE:

          enum MyEnum {
               a,
               ....
               zzz9999
          };
          Q_ENUM(MyEnum)
          

          then use QMetaEnum to get values or values-to-strings, etc...

          QMetaEnum e = QMetaEnum::fromType<MyEnum>();
          qDebug() << e.valueToKey(MyEnum::zzz9999);
          
          A Offline
          A Offline
          amarism
          wrote on last edited by
          #7

          @raven-worx i will take one example in QT.

          enum data{
                  a,b,c,d
              };
          Q_ENUM(data)
          

          and .cpp file

           QMetaEnum e = QMetaEnum::fromType<data>();
            for(int i=0;i<=d;i++){
              qDebug()<<e.valueToKey(data::a);
           }
          

          It will print only d(4times). But I want to print a,b,c,d

          raven-worxR JonBJ 2 Replies Last reply
          0
          • A amarism

            @raven-worx i will take one example in QT.

            enum data{
                    a,b,c,d
                };
            Q_ENUM(data)
            

            and .cpp file

             QMetaEnum e = QMetaEnum::fromType<data>();
              for(int i=0;i<=d;i++){
                qDebug()<<e.valueToKey(data::a);
             }
            

            It will print only d(4times). But I want to print a,b,c,d

            raven-worxR Offline
            raven-worxR Offline
            raven-worx
            Moderators
            wrote on last edited by raven-worx
            #8

            @amarism said in QT how to take enum object inside the QList and print accordingly ?:

            qDebug()<<e.valueToKey(data::a);

            it rather prints 4 times the value of data::a since you tell it to do so: qDebug()<<e.valueToKey(data::a);

            --- SUPPORT REQUESTS VIA CHAT WILL BE IGNORED ---
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            1 Reply Last reply
            4
            • A amarism

              @raven-worx i will take one example in QT.

              enum data{
                      a,b,c,d
                  };
              Q_ENUM(data)
              

              and .cpp file

               QMetaEnum e = QMetaEnum::fromType<data>();
                for(int i=0;i<=d;i++){
                  qDebug()<<e.valueToKey(data::a);
               }
              

              It will print only d(4times). But I want to print a,b,c,d

              JonBJ Offline
              JonBJ Offline
              JonB
              wrote on last edited by
              #9

              @amarism

                for(int i=0;i<=d;i++){
                  qDebug()<<e.valueToKey(data::a);
               }
              

              Like @raven-worx says; you probably want to access that i loop counter inside the loop, don't you? :)

              A 1 Reply Last reply
              2
              • JonBJ JonB

                @amarism

                  for(int i=0;i<=d;i++){
                    qDebug()<<e.valueToKey(data::a);
                 }
                

                Like @raven-worx says; you probably want to access that i loop counter inside the loop, don't you? :)

                A Offline
                A Offline
                amarism
                wrote on last edited by
                #10
                This post is deleted!
                J.HilkJ raven-worxR 2 Replies Last reply
                0
                • A amarism

                  This post is deleted!

                  J.HilkJ Offline
                  J.HilkJ Offline
                  J.Hilk
                  Moderators
                  wrote on last edited by
                  #11

                  @amarism

                  for(int i=0;i<=d;i++){
                      qDebug()<<e.valueToKey(static_cast<data>(i));
                   }
                  

                  Be aware of the Qt Code of Conduct, when posting : https://forum.qt.io/topic/113070/qt-code-of-conduct


                  Q: What's that?
                  A: It's blue light.
                  Q: What does it do?
                  A: It turns blue.

                  A 1 Reply Last reply
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                  • A amarism

                    This post is deleted!

                    raven-worxR Offline
                    raven-worxR Offline
                    raven-worx
                    Moderators
                    wrote on last edited by
                    #12

                    @amarism said in QT how to take enum object inside the QList and print accordingly ?:

                    i tried to take i inside the loop but its show error " 'i': illegal qualified name in member declaration "

                    QMetaEnum::valueToKey() takes an int parameter, so i don't see why the following shouldn't work.

                    for(int i=0;i<=d;i++){
                        qDebug() << e.valueToKey(i);
                     }
                    

                    --- SUPPORT REQUESTS VIA CHAT WILL BE IGNORED ---
                    If you have a question please use the forum so others can benefit from the solution in the future

                    A 1 Reply Last reply
                    2
                    • raven-worxR raven-worx

                      @amarism said in QT how to take enum object inside the QList and print accordingly ?:

                      i tried to take i inside the loop but its show error " 'i': illegal qualified name in member declaration "

                      QMetaEnum::valueToKey() takes an int parameter, so i don't see why the following shouldn't work.

                      for(int i=0;i<=d;i++){
                          qDebug() << e.valueToKey(i);
                       }
                      
                      A Offline
                      A Offline
                      amarism
                      wrote on last edited by amarism
                      #13

                      @raven-worx ya its working , Thanks a lots

                      1 Reply Last reply
                      0
                      • J.HilkJ J.Hilk

                        @amarism

                        for(int i=0;i<=d;i++){
                            qDebug()<<e.valueToKey(static_cast<data>(i));
                         }
                        
                        A Offline
                        A Offline
                        amarism
                        wrote on last edited by
                        #14

                        @J.Hilk Without QT, Can I do the same thing(by using the normal C++ method like a 2-D array) ??

                        1 Reply Last reply
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