Skip to content
  • Categories
  • Recent
  • Tags
  • Popular
  • Users
  • Groups
  • Search
  • Get Qt Extensions
  • Unsolved
Collapse
Brand Logo
  1. Home
  2. Qt Development
  3. General and Desktop
  4. [SOLVED] QTabWidget tabName and qplaintextedit::textChanged() signal problem
Forum Update on Monday, May 27th 2025

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

Scheduled Pinned Locked Moved Unsolved General and Desktop
qplaintexteditqstringqtabwidget
31 Posts 3 Posters 9.7k Views
  • Oldest to Newest
  • Newest to Oldest
  • Most Votes
Reply
  • Reply as topic
Log in to reply
This topic has been deleted. Only users with topic management privileges can see it.
  • T Offline
    T Offline
    takoo
    wrote on 7 Feb 2016, 18:50 last edited by
    #11

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

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

    M 1 Reply Last reply 7 Feb 2016, 19:08
    0
    • T takoo
      7 Feb 2016, 18:50

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

      M Offline
      M Offline
      mrjj
      Lifetime Qt Champion
      wrote on 7 Feb 2016, 19:08 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?

      1 Reply Last reply
      0
      • 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
          0
          • 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 ------- (-_-) ----------

            1 Reply Last reply
            0
            • 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
                0
                • 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
                    1
                    • 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?

                        1 Reply Last reply
                        0
                        • T Offline
                          T Offline
                          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
                          0
                          • 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
                            0
                            • 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. ?

                                  1 Reply Last reply
                                  0
                                  • 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
                                          0

                                          20/31

                                          9 Feb 2016, 18:14

                                          • Login

                                          • Login or register to search.
                                          20 out of 31
                                          • First post
                                            20/31
                                            Last post
                                          0
                                          • Categories
                                          • Recent
                                          • Tags
                                          • Popular
                                          • Users
                                          • Groups
                                          • Search
                                          • Get Qt Extensions
                                          • Unsolved