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  4. [SOLVED] QTabWidget tabName and qplaintextedit::textChanged() signal problem

[SOLVED] QTabWidget tabName and qplaintextedit::textChanged() signal problem

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  • T takoo

    @mrjj if text change of my plainTextEdit when I want to change tab text of qtabwidget

    mrjjM Offline
    mrjjM Offline
    mrjj
    Lifetime Qt Champion
    wrote on last edited by
    #10

    ok
    and what part is not working?
    Is currentindex valid?

    int sel=ui->tabWİdget_2->currentIndex();
    qDebug () << "sel is:" << sel;
    ui->tabWidget_2->setTabText(sel,"test");

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    • T Offline
      T Offline
      takoo
      wrote on last edited by
      #11

      setTabText not working in addStar function. normally works(setTabText())

      I just write code ------- (-_-) ----------

      mrjjM 1 Reply Last reply
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      • T takoo

        setTabText not working in addStar function. normally works(setTabText())

        mrjjM Offline
        mrjjM Offline
        mrjj
        Lifetime Qt Champion
        wrote on last edited by
        #12

        @takoo
        Hi
        It should do the same in any slot or function.
        Are you sure its called
        and the index and text you use are valid?
        what did
        qDebug () << "sel is:" << sel;
        show you?

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        • T Offline
          T Offline
          takoo
          wrote on last edited by
          #13

          sel = -1

          I just write code ------- (-_-) ----------

          mrjjM 1 Reply Last reply
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          • T takoo

            sel = -1

            mrjjM Offline
            mrjjM Offline
            mrjj
            Lifetime Qt Champion
            wrote on last edited by
            #14

            @takoo
            ok. ahh.
            so index is not valid.
            tabWİdget_2->currentIndex() is -1 which means there is no
            current/active tab.
            try clicking tab before testing the text changed or change to
            the first one.

            How many tabs did u add to it ?

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            • T Offline
              T Offline
              takoo
              wrote on last edited by
              #15

              I am add tab with code. So It's not certain tabcount. Index only not valid in textChanged(). Otherwise valid

              I just write code ------- (-_-) ----------

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              • T Offline
                T Offline
                takoo
                wrote on last edited by
                #16

                ui->tabWidget_2->setTabText(0,"tabOne"); I tried it in addStar() function but not working

                I just write code ------- (-_-) ----------

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                • T takoo

                  ui->tabWidget_2->setTabText(0,"tabOne"); I tried it in addStar() function but not working

                  mrjjM Offline
                  mrjjM Offline
                  mrjj
                  Lifetime Qt Champion
                  wrote on last edited by
                  #17

                  @takoo
                  sorry I am out of guesses.
                  if
                  ui->tabWidget_2->setTabText(0,"tabOne");
                  does not work, it have no idea then.

                  Did u place break point on it and made sure its called?
                  You are 100% sure you are adding tabs to ui->tabWidget_2 and not
                  ui->tabWidget_1 or something else ?

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                  • T Offline
                    T Offline
                    takoo
                    wrote on last edited by
                    #18

                    I am sure

                    I just write code ------- (-_-) ----------

                    mrjjM 1 Reply Last reply
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                    • T takoo

                      I am sure

                      mrjjM Offline
                      mrjjM Offline
                      mrjj
                      Lifetime Qt Champion
                      wrote on last edited by mrjj
                      #19

                      @takoo
                      Well i'm out of guesses. sorry.
                      There is no reason that setTabText should not work.

                      please see this small sample that change tabtext when u write in edit
                      https://www.dropbox.com/s/pm5uolmc7m0fo2w/mytabs.zip?dl=0

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                      • T Offline
                        T Offline
                        takoo
                        wrote on last edited by
                        #20

                        @mrjj I've identified problem. not see anything about qTabWidget in function textChanged()

                        I just write code ------- (-_-) ----------

                        mrjjM 1 Reply Last reply
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                        • T takoo

                          @mrjj I've identified problem. not see anything about qTabWidget in function textChanged()

                          mrjjM Offline
                          mrjjM Offline
                          mrjj
                          Lifetime Qt Champion
                          wrote on last edited by
                          #21

                          @takoo
                          Ok, im sure what u changed?

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                          • T Offline
                            T Offline
                            takoo
                            wrote on last edited by
                            #22

                            i sent scripts. You can see

                            I just write code ------- (-_-) ----------

                            mrjjM 1 Reply Last reply
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                            • T takoo

                              i sent scripts. You can see

                              mrjjM Offline
                              mrjjM Offline
                              mrjj
                              Lifetime Qt Champion
                              wrote on last edited by
                              #23

                              @takoo
                              Ohh, the function was empty??

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                              • T Offline
                                T Offline
                                takoo
                                wrote on last edited by
                                #24

                                @mrjj Nothing happens when I wrote related qtabwidget in that function(addStar)

                                I just write code ------- (-_-) ----------

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                                • T Offline
                                  T Offline
                                  takoo
                                  wrote on last edited by
                                  #25

                                  @mrjj http://www116.zippyshare.com/v/M9f6gXaM/file.html
                                  Try to run this project (myTabs)

                                  I just write code ------- (-_-) ----------

                                  mrjjM 1 Reply Last reply
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                                  • T takoo

                                    @mrjj http://www116.zippyshare.com/v/M9f6gXaM/file.html
                                    Try to run this project (myTabs)

                                    mrjjM Offline
                                    mrjjM Offline
                                    mrjj
                                    Lifetime Qt Champion
                                    wrote on last edited by mrjj
                                    #26

                                    @takoo
                                    hi
                                    you create a new version of main window here

                                    plaint::plaint(QWidget *parent):QPlainTextEdit(parent)
                                    {
                                      mw=new MainWindow();<<---------------- new main wind
                                      connect(this,SIGNAL(textChanged()),mw,SLOT(yildiz()));
                                    }
                                    

                                    mw is never shown and u never see u change the tabtext in this new version you create.

                                    in main.cpp, you already create a Mainwindow version so not sure why u create a new one. ?

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                                    • T Offline
                                      T Offline
                                      takoo
                                      wrote on last edited by
                                      #27

                                      @mrjj hi
                                      exactly what I need to do ?

                                      I just write code ------- (-_-) ----------

                                      mrjjM 1 Reply Last reply
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                                      • T takoo

                                        @mrjj hi
                                        exactly what I need to do ?

                                        mrjjM Offline
                                        mrjjM Offline
                                        mrjj
                                        Lifetime Qt Champion
                                        wrote on last edited by mrjj
                                        #28

                                        @takoo
                                        well It really depends what u want ?
                                        Im not sure why you have
                                        class plaint:public QPlainTextEdit
                                        Instead of just using QPlainTextEdit directly ?

                                        update:
                                        i fixed the sample to do what u talked about first.
                                        To change the tabtext for the tab.
                                        https://www.dropbox.com/s/eezslmryro6ptrj/mytabs.zip?dl=0

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                                        • T Offline
                                          T Offline
                                          takoo
                                          wrote on last edited by
                                          #29

                                          @mrjj thanks :D Solved

                                          I just write code ------- (-_-) ----------

                                          mrjjM 1 Reply Last reply
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