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Move items in a QSortFilterProxyModel

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  • V Valerian

    @VRonin said in Move items in a QSortFilterProxyModel:

    Can you post the implementation?

    I have already posted the implementation of the QSortFilterProxyModel. Are you seeking the implementation of the QAbstractTableModel?

    VRoninV Offline
    VRoninV Offline
    VRonin
    wrote on last edited by
    #17

    @VRonin said in Move items in a QSortFilterProxyModel:

    Did you reimplement moveRow?

    @Valerian said in Move items in a QSortFilterProxyModel:

    I re-implemeted it in the QSortFilterProxyModel.

    I don't see an implementation of FilterProxyModel::moveRow (or rather FilterProxyModel::moveRows) above

    "La mort n'est rien, mais vivre vaincu et sans gloire, c'est mourir tous les jours"
    ~Napoleon Bonaparte

    On a crusade to banish setIndexWidget() from the holy land of Qt

    V 1 Reply Last reply
    1
    • JonBJ JonB

      @Valerian
      I now realise you got your code from https://stackoverflow.com/a/43683619/489865, didn't you? Wasn't actually confirmed to be correct solution. I still don't get where the + 2 comes from, but there you are.

      IF @VRonin does not sort you out (so to speak :) ), I don't know, but maybe you should have a careful read of https://stackoverflow.com/a/12254935/489865. Not sure whether the following might affect you:

      (2) Yes if you don't use sorting, just filtering. Qt in such case erases entire internal mapping and re-builds it from scratch so the data will be just as they appear in source model

      V Offline
      V Offline
      Valerian
      wrote on last edited by
      #18

      @JonB said in Move items in a QSortFilterProxyModel:

      I now realise you got your code from https://stackoverflow.com/a/43683619/489865, didn't you? Wasn't actually confirmed to be correct solution. I still don't get where the + 2 comes from, but there you are.

      Yes I did pick it from there.

      Thanks for the other stackflow link. Will have a read on that.

      1 Reply Last reply
      0
      • VRoninV VRonin

        @VRonin said in Move items in a QSortFilterProxyModel:

        Did you reimplement moveRow?

        @Valerian said in Move items in a QSortFilterProxyModel:

        I re-implemeted it in the QSortFilterProxyModel.

        I don't see an implementation of FilterProxyModel::moveRow (or rather FilterProxyModel::moveRows) above

        V Offline
        V Offline
        Valerian
        wrote on last edited by
        #19

        @VRonin said in Move items in a QSortFilterProxyModel:

        I don't see an implementation of FilterProxyModel::moveRow (or rather FilterProxyModel::moveRows) above

        I haven't implement that. Not sure if I need to write that

        1 Reply Last reply
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        • VRoninV VRonin

          @Valerian said in Move items in a QSortFilterProxyModel:

          QAbstractTableModel

          Did you reimplement moveRow?

          VRoninV Offline
          VRoninV Offline
          VRonin
          wrote on last edited by
          #20

          @VRonin said in Move items in a QSortFilterProxyModel:

          Did you reimplement moveRow?

          @Valerian said in Move items in a QSortFilterProxyModel:

          I re-implemeted it in the QSortFilterProxyModel

          You lied to me!

          As I mentioned, the default implementation does nothing and returns false so calling it is pointless unless you reimplement it

          "La mort n'est rien, mais vivre vaincu et sans gloire, c'est mourir tous les jours"
          ~Napoleon Bonaparte

          On a crusade to banish setIndexWidget() from the holy land of Qt

          JonBJ 1 Reply Last reply
          1
          • VRoninV VRonin

            @VRonin said in Move items in a QSortFilterProxyModel:

            Did you reimplement moveRow?

            @Valerian said in Move items in a QSortFilterProxyModel:

            I re-implemeted it in the QSortFilterProxyModel

            You lied to me!

            As I mentioned, the default implementation does nothing and returns false so calling it is pointless unless you reimplement it

            JonBJ Offline
            JonBJ Offline
            JonB
            wrote on last edited by
            #21

            @VRonin [I don't get what's happening in the pic? :( ]

            VRoninV 1 Reply Last reply
            0
            • JonBJ JonB

              @VRonin [I don't get what's happening in the pic? :( ]

              VRoninV Offline
              VRoninV Offline
              VRonin
              wrote on last edited by
              #22

              @JonB https://www.youtube.com/watch?v=xXdD9yFZGv8

              "La mort n'est rien, mais vivre vaincu et sans gloire, c'est mourir tous les jours"
              ~Napoleon Bonaparte

              On a crusade to banish setIndexWidget() from the holy land of Qt

              JonBJ 1 Reply Last reply
              0
              • VRoninV VRonin

                @JonB https://www.youtube.com/watch?v=xXdD9yFZGv8

                JonBJ Offline
                JonBJ Offline
                JonB
                wrote on last edited by
                #23

                @VRonin
                Dear Mr VRonin,

                Thank you for that link. I opened it from Firefox from the Ubuntu I sit inside as a VirtualBox under Windows Server.

                The video started, and then froze. My whole Linux guest box froze. Nothing other than a Windows TaskMan kill of the whole VBox was possible, killing my session and any work I had done but not committed!

                Please remind me never to risk clicking on such a link again! :) I shall have to manage without knowing the meaning of the pic now...

                VRoninV 1 Reply Last reply
                1
                • JonBJ JonB

                  @VRonin
                  Dear Mr VRonin,

                  Thank you for that link. I opened it from Firefox from the Ubuntu I sit inside as a VirtualBox under Windows Server.

                  The video started, and then froze. My whole Linux guest box froze. Nothing other than a Windows TaskMan kill of the whole VBox was possible, killing my session and any work I had done but not committed!

                  Please remind me never to risk clicking on such a link again! :) I shall have to manage without knowing the meaning of the pic now...

                  VRoninV Offline
                  VRoninV Offline
                  VRonin
                  wrote on last edited by
                  #24

                  @JonB Sorry mate, it was just a stupid YouTube video of a guy saying carrots are good for eyesight, another guy shoving 2 carrots in his eyes and then the image above

                  "La mort n'est rien, mais vivre vaincu et sans gloire, c'est mourir tous les jours"
                  ~Napoleon Bonaparte

                  On a crusade to banish setIndexWidget() from the holy land of Qt

                  V JonBJ 2 Replies Last reply
                  3
                  • VRoninV VRonin

                    @JonB Sorry mate, it was just a stupid YouTube video of a guy saying carrots are good for eyesight, another guy shoving 2 carrots in his eyes and then the image above

                    V Offline
                    V Offline
                    Valerian
                    wrote on last edited by
                    #25

                    @VRonin Thank you for your feedback. Will re-implement those functions and try

                    1 Reply Last reply
                    0
                    • VRoninV VRonin

                      @JonB Sorry mate, it was just a stupid YouTube video of a guy saying carrots are good for eyesight, another guy shoving 2 carrots in his eyes and then the image above

                      JonBJ Offline
                      JonBJ Offline
                      JonB
                      wrote on last edited by
                      #26

                      @VRonin Ohhhhh, I would never have figured that's what it was! All OK :)

                      1 Reply Last reply
                      1
                      • F Offline
                        F Offline
                        fanyha
                        wrote on last edited by
                        #27

                        hi, can anybody tell me how to implement moveRows() for the class derived from QSortFilterProxyModel:
                        moveRows(const QModelIndex &sourceParent, int sourceRow, int count, const QModelIndex &destinationParent, int destinationChild)

                        it looks like we need to exchange the proxy indexes, but we can't access to the private members in the subclass

                        1 Reply Last reply
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