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

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qplaintexteditqstringqtabwidget
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  • mrjjM Offline
    mrjjM Offline
    mrjj
    Lifetime Qt Champion
    wrote on last edited by
    #4

    hi
    connect(ui->plainTextEdit,SIGNAL(textChanged()),this,SLOT(addStar()));
    This connects to addStar() and not
    text_Changed() ?
    also , to make sure connect works, you can
    QDebug() << " Text Change Signal:" << connect(ui->plainTextEdit,SIGNAL(textChanged()),this,SLOT(addStar()));
    and see it returns true.

    1 Reply Last reply
    0
    • T Offline
      T Offline
      takoo
      wrote on last edited by
      #5

      result true . Only does not print qstring (currentName) in addStart() function

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

      mrjjM 1 Reply Last reply
      0
      • T takoo

        result true . Only does not print qstring (currentName) in addStart() function

        mrjjM Offline
        mrjjM Offline
        mrjj
        Lifetime Qt Champion
        wrote on last edited by
        #6

        @takoo said:

        qDebug()<<currentName;

        well try with
        qDebug()<<"hello";

        where is currentName defined? where do u set the value?

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        • T Offline
          T Offline
          takoo
          wrote on last edited by
          #7

          i have tried and result="hello" .

          void MainWindow::on_treeView_doubleClicked(const QModelIndex &index)

          {

          if(index.isValid())
          {
          Q

          ModelIndex mapped=filter->mapToSource(index);
          i=index;

          currentName=model->fileName(index);
          sampleString=currentName;

          }
          }
          void MainWindow::text_Changed()
          {
          qDebug()<<sampleString; // currentName writes
          ui->tabWidget_2->setTabText(ui->tabWİdget_2->currentIndex(),ty+"*");//this not working

          }

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

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          • mrjjM Offline
            mrjjM Offline
            mrjj
            Lifetime Qt Champion
            wrote on last edited by
            #8

            hi
            u are using
            currentName=model->fileName(index);
            and I sort expect it to be
            currentName=model->fileName(mapped);
            if u still have sort on.
            //
            ui->tabWidget_2->setTabText(ui->tabWİdget_2->currentIndex(),ty+"*");//this not working

            ok. it looks strange. what are u trying to do ?

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            • T Offline
              T Offline
              takoo
              wrote on last edited by
              #9

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

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

              mrjjM 1 Reply Last reply
              0
              • 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");

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

                            mrjjM 1 Reply Last reply
                            0
                            • 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
                                0
                                • 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

                                  1 Reply Last reply
                                  1
                                  • 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
                                    0
                                    • 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
                                        0
                                        • 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??

                                          1 Reply Last reply
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