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Multiple LineEdits focus issues

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qlineeditfocus issuefocusip editorcustomplugin
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  • Sh1gsS Offline
    Sh1gsS Offline
    Sh1gs
    wrote on last edited by
    #1

    Hello,

    I am creating an IP Editor custom plugin using 4 QLineEdits. I am using 4 LineEdits so that the end user has the ability to edit each input mask individually. I have set them all to ClickFocus. However, my issue is that, say the IP Editor is completely empty and a user clicks on the third input mask, how do I force the cursor and focus to be on the first input mask instead? Would it be easier to set the latter 3 to read only at startup? Or is there a better way of handling this?

    Thank you

    jsulmJ 1 Reply Last reply
    0
    • Vinod KuntojiV Offline
      Vinod KuntojiV Offline
      Vinod Kuntoji
      wrote on last edited by
      #2

      @Sh1gs ,
      connect(m_LineEdit3, SIGNAL(textChanged(QString)),this,SLOT(enableLineEditIP(QString)));

      SLOT:
      void Widget :: enableLineEditIP(QString str) {
      if(m_LineEditIP->text().isEmpty()) {
      m_LineEdit3->clear();
      m_LineEditIP->setFocus();
      }
      }

      C++, Qt, Qt Quick Developer,
      PthinkS, Bangalore

      1 Reply Last reply
      2
      • Sh1gsS Sh1gs

        Hello,

        I am creating an IP Editor custom plugin using 4 QLineEdits. I am using 4 LineEdits so that the end user has the ability to edit each input mask individually. I have set them all to ClickFocus. However, my issue is that, say the IP Editor is completely empty and a user clicks on the third input mask, how do I force the cursor and focus to be on the first input mask instead? Would it be easier to set the latter 3 to read only at startup? Or is there a better way of handling this?

        Thank you

        jsulmJ Offline
        jsulmJ Offline
        jsulm
        Lifetime Qt Champion
        wrote on last edited by
        #3

        @Sh1gs I wouldn't do it like this. Instead I would disable all 3 line edits on the right side and kepp only the first one on the left side enabled. As soon as the user enters a number into the left line edit I would activate the next line edit and so on.
        Your solution would irritate the user: he/she clicks an line edit but the focus goes to another one. This is unexpected behaviour.

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

        Sh1gsS 1 Reply Last reply
        1
        • jsulmJ jsulm

          @Sh1gs I wouldn't do it like this. Instead I would disable all 3 line edits on the right side and kepp only the first one on the left side enabled. As soon as the user enters a number into the left line edit I would activate the next line edit and so on.
          Your solution would irritate the user: he/she clicks an line edit but the focus goes to another one. This is unexpected behaviour.

          Sh1gsS Offline
          Sh1gsS Offline
          Sh1gs
          wrote on last edited by
          #4

          Thank you @Vinod-Kuntoji , unfortunately this method did not work for me.

          @jsulm I tried this method yesterday after submitting the forum and it does work, it just requires more coding to enable the other 3 edits. I was just hoping there was a cleaner way, almost like lineedit->resetcursorposition(int).

          1 Reply Last reply
          0
          • EddyE Offline
            EddyE Offline
            Eddy
            wrote on last edited by
            #5

            @Sh1gs

            This topic might be of interest to you , since it looks like your problem setting.

            Eddy

            Qt Certified Specialist
            www.edalsolutions.be

            Sh1gsS 1 Reply Last reply
            1
            • EddyE Eddy

              @Sh1gs

              This topic might be of interest to you , since it looks like your problem setting.

              Eddy

              Sh1gsS Offline
              Sh1gsS Offline
              Sh1gs
              wrote on last edited by
              #6

              Thanks @Eddy, I've seen this topic and used a lot of the methodologies from it already.

              I will go ahead and mark this topic as solved. I went ahead and set the last 3 LineEdits to readOnly at startup and then change them accordingly as numbers are entered.

              Thank you everyone

              1 Reply Last reply
              1
              • EddyE Offline
                EddyE Offline
                Eddy
                wrote on last edited by
                #7

                Thanks for posting your solution.

                Happy coding.

                Qt Certified Specialist
                www.edalsolutions.be

                1 Reply Last reply
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