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  4. [SOLVED] QTabWidget tabName and qplaintextedit::textChanged() signal problem
Forum Update on Monday, May 27th 2025

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

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  • T Offline
    T Offline
    takoo
    wrote on 7 Feb 2016, 19:16 last edited by
    #13

    sel = -1

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

    M 1 Reply Last reply 7 Feb 2016, 19:29
    0
    • T takoo
      7 Feb 2016, 19:16

      sel = -1

      M Offline
      M Offline
      mrjj
      Lifetime Qt Champion
      wrote on 7 Feb 2016, 19:29 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 ?

      1 Reply Last reply
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      • T Offline
        T Offline
        takoo
        wrote on 7 Feb 2016, 19:50 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 7 Feb 2016, 19:55 last edited by
          #16

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

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

          M 1 Reply Last reply 7 Feb 2016, 20:13
          0
          • T takoo
            7 Feb 2016, 19:55

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

            M Offline
            M Offline
            mrjj
            Lifetime Qt Champion
            wrote on 7 Feb 2016, 20:13 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 ?

            1 Reply Last reply
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            • T Offline
              T Offline
              takoo
              wrote on 8 Feb 2016, 17:50 last edited by
              #18

              I am sure

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

              M 1 Reply Last reply 8 Feb 2016, 21:35
              0
              • T takoo
                8 Feb 2016, 17:50

                I am sure

                M Offline
                M Offline
                mrjj
                Lifetime Qt Champion
                wrote on 8 Feb 2016, 21:35 last edited by mrjj 2 Aug 2016, 21:44
                #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

                1 Reply Last reply
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                • T Offline
                  T Offline
                  takoo
                  wrote on 9 Feb 2016, 18:14 last edited by
                  #20

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

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

                  M 1 Reply Last reply 10 Feb 2016, 06:57
                  0
                  • T takoo
                    9 Feb 2016, 18:14

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

                    M Offline
                    M Offline
                    mrjj
                    Lifetime Qt Champion
                    wrote on 10 Feb 2016, 06:57 last edited by
                    #21

                    @takoo
                    Ok, im sure what u changed?

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                    • T Offline
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                      takoo
                      wrote on 10 Feb 2016, 07:28 last edited by
                      #22

                      i sent scripts. You can see

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

                      M 1 Reply Last reply 10 Feb 2016, 08:13
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                      • T takoo
                        10 Feb 2016, 07:28

                        i sent scripts. You can see

                        M Offline
                        M Offline
                        mrjj
                        Lifetime Qt Champion
                        wrote on 10 Feb 2016, 08:13 last edited by
                        #23

                        @takoo
                        Ohh, the function was empty??

                        1 Reply Last reply
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                        • T Offline
                          T Offline
                          takoo
                          wrote on 10 Feb 2016, 20:12 last edited by
                          #24

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

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

                          1 Reply Last reply
                          0
                          • T Offline
                            T Offline
                            takoo
                            wrote on 10 Feb 2016, 21:05 last edited by
                            #25

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

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

                            M 1 Reply Last reply 11 Feb 2016, 19:57
                            0
                            • T takoo
                              10 Feb 2016, 21:05

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

                              M Offline
                              M Offline
                              mrjj
                              Lifetime Qt Champion
                              wrote on 11 Feb 2016, 19:57 last edited by mrjj 2 Nov 2016, 20:00
                              #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 11 Feb 2016, 20:02 last edited by
                                #27

                                @mrjj hi
                                exactly what I need to do ?

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

                                M 1 Reply Last reply 11 Feb 2016, 20:06
                                0
                                • T takoo
                                  11 Feb 2016, 20:02

                                  @mrjj hi
                                  exactly what I need to do ?

                                  M Offline
                                  M Offline
                                  mrjj
                                  Lifetime Qt Champion
                                  wrote on 11 Feb 2016, 20:06 last edited by mrjj 2 Nov 2016, 20:11
                                  #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

                                  1 Reply Last reply
                                  0
                                  • T Offline
                                    T Offline
                                    takoo
                                    wrote on 11 Feb 2016, 20:24 last edited by
                                    #29

                                    @mrjj thanks :D Solved

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

                                    M 1 Reply Last reply 11 Feb 2016, 20:26
                                    0
                                    • T takoo
                                      11 Feb 2016, 20:24

                                      @mrjj thanks :D Solved

                                      M Offline
                                      M Offline
                                      mrjj
                                      Lifetime Qt Champion
                                      wrote on 11 Feb 2016, 20:26 last edited by
                                      #30

                                      @takoo
                                      So all came from u had 2 windows but the second was never shown so
                                      it seem that nothing happened. :)
                                      code help for me to undestand, so good idea :)

                                      1 Reply Last reply
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                                      • T Offline
                                        T Offline
                                        takoo
                                        wrote on 11 Feb 2016, 20:31 last edited by
                                        #31

                                        @mrjj that is right :D

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

                                        1 Reply Last reply
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