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how to duplicate widget

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  • W wabisuke2718

    @jsulm So is there no way to duplicate complex QFrames like the next image created in design mode at run time?
    If not, how can I dynamically generate and place this QFrame programmatically?

    alt text

    kshegunovK Offline
    kshegunovK Offline
    kshegunov
    Moderators
    wrote on last edited by kshegunov
    #5
    QWidget widget;
    Ui::WidgetForm form;
    
    // Setup the widget with the form
    form.setupUi(&widget);
    
    // Connect or modify things here if necessary
    

    You should modify the above so to suit your needs. The form's widgets are available as pointers in the form variable.

    Read and abide by the Qt Code of Conduct

    1 Reply Last reply
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    • jsulmJ jsulm

      @wabisuke2718 You can design a widget with all the stuff you need inside it in Designer and then create as many instances of this widget as you need.
      In QtCreator go to "File/New File or Project.../Qt Designer Form Class".

      If you want to do this completely at runtime (without using designer) - you can do this as well. Just create your QFrame and all the other widgets. Set the QFrame as parent in those widgets and use a layout in QFrame to position the widgets.

      W Offline
      W Offline
      wabisuke2718
      wrote on last edited by
      #6

      @jsulm Could you please tell me a little more?

      jsulmJ 1 Reply Last reply
      0
      • W wabisuke2718

        @jsulm Could you please tell me a little more?

        jsulmJ Offline
        jsulmJ Offline
        jsulm
        Lifetime Qt Champion
        wrote on last edited by
        #7

        @wabisuke2718 What exactly?

        https://forum.qt.io/topic/113070/qt-code-of-conduct

        W 1 Reply Last reply
        0
        • jsulmJ jsulm

          @wabisuke2718 What exactly?

          W Offline
          W Offline
          wabisuke2718
          wrote on last edited by
          #8

          @jsulm

          and then create as many instances of this widget as you need.

          Specifically, what kind of code will create widgets?
          I am sorry for troubling you, please tell me.

          jsulmJ 1 Reply Last reply
          0
          • W wabisuke2718

            @jsulm

            and then create as many instances of this widget as you need.

            Specifically, what kind of code will create widgets?
            I am sorry for troubling you, please tell me.

            jsulmJ Offline
            jsulmJ Offline
            jsulm
            Lifetime Qt Champion
            wrote on last edited by
            #9

            @wabisuke2718 A widget is just a C++ class so you create an instance as any other:

            MyWidget *widget = new MyWidget(parent);
            

            https://forum.qt.io/topic/113070/qt-code-of-conduct

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            • K Offline
              K Offline
              kenchan
              wrote on last edited by
              #10

              @wabisuke2718
              You can always take a look in the .ui file which QDesigner will generate. You can see how it builds the widgets in code and adapt the code in your own coded widget if you want to.

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              • mrjjM Offline
                mrjjM Offline
                mrjj
                Lifetime Qt Champion
                wrote on last edited by
                #11
                • So is there no way to duplicate complex QFrames like the next image created in design mode at run time?

                Hi, what ever u draw in Designer also exists as code.
                If you go to the form and look int SetupUI() function, you will see
                all the code that creates such a Frame.

                You can then easy make it a function and just call that to create more of them.
                Copy code to other file as the ui_xx file is generated.

                Ayush92A 1 Reply Last reply
                2
                • SGaistS Offline
                  SGaistS Offline
                  SGaist
                  Lifetime Qt Champion
                  wrote on last edited by
                  #12

                  Hi,

                  Is this widget meant to show each entry listed in your mastodon feed ?

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

                  W 1 Reply Last reply
                  0
                  • SGaistS SGaist

                    Hi,

                    Is this widget meant to show each entry listed in your mastodon feed ?

                    W Offline
                    W Offline
                    wabisuke2718
                    wrote on last edited by
                    #13

                    @SGaist yes

                    1 Reply Last reply
                    0
                    • SGaistS Offline
                      SGaistS Offline
                      SGaist
                      Lifetime Qt Champion
                      wrote on last edited by
                      #14

                      In that case, it will likely make more sense to use a QListView with a custom QStyledItemDelegate and a custom model to hold your data. Otherwise you'll end up with thousands of widgets which is not the best performance-wise for showing a list with basically static content.

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

                      1 Reply Last reply
                      1
                      • mrjjM mrjj
                        • So is there no way to duplicate complex QFrames like the next image created in design mode at run time?

                        Hi, what ever u draw in Designer also exists as code.
                        If you go to the form and look int SetupUI() function, you will see
                        all the code that creates such a Frame.

                        You can then easy make it a function and just call that to create more of them.
                        Copy code to other file as the ui_xx file is generated.

                        Ayush92A Offline
                        Ayush92A Offline
                        Ayush92
                        wrote on last edited by Ayush92
                        #15

                        @mrjj That is a good idea.Please tell me how we can change duplicate ui_x.h and ui_y.h files at run time for two UI of same class?

                        Pl45m4P Ayush92A 2 Replies Last reply
                        0
                        • Ayush92A Ayush92

                          @mrjj That is a good idea.Please tell me how we can change duplicate ui_x.h and ui_y.h files at run time for two UI of same class?

                          Pl45m4P Offline
                          Pl45m4P Offline
                          Pl45m4
                          wrote on last edited by
                          #16

                          @Ayush92

                          Why you need to do that?
                          Just create multiple instances of the same class?!


                          If debugging is the process of removing software bugs, then programming must be the process of putting them in.

                          ~E. W. Dijkstra

                          1 Reply Last reply
                          1
                          • Ayush92A Ayush92

                            @mrjj That is a good idea.Please tell me how we can change duplicate ui_x.h and ui_y.h files at run time for two UI of same class?

                            Ayush92A Offline
                            Ayush92A Offline
                            Ayush92
                            wrote on last edited by
                            #17

                            My agenda is this [https://stackoverflow.com/questions/64370459/want-to-change-orientation-from-landscape-to-portrait-view-of-qt-c-application?noredirect=1#comment113829091_64370459].

                            JonBJ 1 Reply Last reply
                            0
                            • Ayush92A Ayush92

                              My agenda is this [https://stackoverflow.com/questions/64370459/want-to-change-orientation-from-landscape-to-portrait-view-of-qt-c-application?noredirect=1#comment113829091_64370459].

                              JonBJ Offline
                              JonBJ Offline
                              JonB
                              wrote on last edited by JonB
                              #18

                              @Ayush92
                              For anyone reading this/tempted to answer, please note that the OP is asking the same question in https://forum.qt.io/topic/119689/gui-from-xml-in-c [where I have tried to answer]. We don't want to keep answering the same issues in multiple threads....

                              1 Reply Last reply
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