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Creating a keypress signal from application button

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  • V Offline
    V Offline
    vsorokin
    wrote on last edited by
    #23

    ludde are right:
    in your setup.h file
    @
    ...
    MyTableView *myTableViewInstance;
    ...
    @

    --
    Vasiliy

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    • M Offline
      M Offline
      maxmotor
      wrote on last edited by
      #24

      That was it, thank you :)

      Okay to get back to the subject (Which I slowly turned away from introducing other challenges :) ).

      I have made a slot in MyTableView:

      @void MyTableView::key_down(){
      QTableView::moveCursor(QAbstractItemView::MoveDown, Qt::NoModifier);
      }@

      This is then used in my setup.cpp file:

      @void Setup::createActions() {

      QObject::connect(ui.buttonTwo, SIGNAL(clicked()), this, SLOT(myTableViewInstance->key_down()));

      }@

      This has no effect on my QTableWidget though. But I guess it's me and my coding which is faulty again. Can you see from my code snippets what I'm doing wrong?

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      • V Offline
        V Offline
        vsorokin
        wrote on last edited by
        #25

        @ connect(ui.buttonTwo, SIGNAL(clicked()), myTableViewInstance, SLOT(key_down()));
        @

        --
        Vasiliy

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        • M Offline
          M Offline
          maxmotor
          wrote on last edited by
          #26

          I get this error: 'QObject' is an inaccessible base of 'MyTableView'

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          • V Offline
            V Offline
            vsorokin
            wrote on last edited by
            #27

            Please show MyTableView constructor implementation

            --
            Vasiliy

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            • M Offline
              M Offline
              maxmotor
              wrote on last edited by
              #28

              It is empty :/

              @MyTableView::MyTableView(QWidget* parent) : QTableView(parent){

              }@

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              • V Offline
                V Offline
                vsorokin
                wrote on last edited by
                #29

                oh... I haven't more ideas :)

                Try change
                @#include "qtableview.h"@
                to

                @#include <QTableView>@

                if nothing changes, just put all your sources to file hosting and get me link :)

                --
                Vasiliy

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                • M Offline
                  M Offline
                  maxmotor
                  wrote on last edited by
                  #30

                  I have sent you a link :)

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                  • V Offline
                    V Offline
                    vsorokin
                    wrote on last edited by
                    #31

                    Oh... many points:

                    1. In your sources
                      @class MyTableView: private QTableView {@

                    although, in example above you wrote:
                    @class MyTableView: public QTableView {@

                    1. You don't needed MyTableView, you already have QTabletWidget on form
                    2. You don't needed inheritance in this case.
                    3. In setup.cpp
                      I rewrite some things:
                      It's for local slot, because MyTableView not needed anymore
                      @connect(ui.buttonTwo, SIGNAL(clicked()), this, SLOT(down()));@

                    in slot, as example, you can add any checks and other logic to their:
                    @void Setup::down() {
                    Parent_ui::ui.tableWidget->selectRow(Parent_ui::ui.tableWidget->currentRow() + 1);
                    }@

                    same for up slot:
                    @void Setup::up() {
                    Parent_ui::ui.tableWidget->selectRow(Parent_ui::ui.tableWidget->currentRow() -1);

                    }@

                    --
                    Vasiliy

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                    • M Offline
                      M Offline
                      maxmotor
                      wrote on last edited by
                      #32

                      Vass you are very kind!

                      I will have a look at this the first thing in the morning.

                      Especially you and ludde have been a big help so far dealing with my lack of Qt/C++ skills.

                      Thank you guys!

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                      • M Offline
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                        maxmotor
                        wrote on last edited by
                        #33

                        I just wanted to tell you that my code is now working as intended! - Thanks to you!

                        I'm very impressed of the willingness to help out on this forum. And the fast response was superb.

                        I'm almost positive that we will talk again! ;)

                        Thank you so much for your time!

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                        • V Offline
                          V Offline
                          vsorokin
                          wrote on last edited by
                          #34

                          [quote author="maxmotor" date="1316166090"]I just wanted to tell you that my code is now working as intended![/quote]

                          Glad to hear! :)
                          However, I highly recommend you learning C++ - it just save your time in future

                          --
                          Vasiliy

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