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  4. How to change Qcombobox popup width

How to change Qcombobox popup width

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  • A Offline
    A Offline
    advseo32
    wrote on last edited by
    #6

    [quote author="raven-worx" date="1375894826"]and you can't see a difference between my and your code?!
    You set the minimum width to width... you wont notice anything with that code.[/quote]

    Ok, i have figured out what you mean

    @void MyQComboBox::showPopup()
    {
    QWidget *view = this->view() ;
    // i can't use this because
    // QWidget hasn't a method (sizeHintForColumn())
    // so i have used this
    this->setMinimumSize(view->sizeHint());
    // but still i have a problem
    QComboBox::showPopup();
    }
    @

    like so,

    ////////////////////////////////////
    // combobox //
    // //
    // I don't need this Height //
    // //
    // //
    ////////////////////////////////////
    // Qtableview her with all //
    //cells inside it ** Horizon //
    // Header // //
    ///////////////////////////////////
    /// row 0 // //
    //////////////////////////////////
    /// row 1 //
    /////////////////////////////////

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    • raven-worxR Offline
      raven-worxR Offline
      raven-worx
      Moderators
      wrote on last edited by
      #7

      this->view() returns an QAbstractItemView which is derived from QWidget. QWidget has a method named setMinimumWidth() ....
      what Qt version do you use?!

      --- SUPPORT REQUESTS VIA CHAT WILL BE IGNORED ---
      If you have a question please use the forum so others can benefit from the solution in the future

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      • A Offline
        A Offline
        advseo32
        wrote on last edited by
        #8

        [quote author="raven-worx" date="1375899990"]this->view() returns an QAbstractItemView which is derived from QWidget. QWidget has a method named setMinimumWidth() ....
        what Qt version do you use?![/quote]

        Sure, QWidget has a member function setMinimumWidth(),

        my problem is inside setMinimumWidth(),

        this->view()->sizeHintForColumn(0) ( QWidget hasn't a methode sizeHintForColumn(0)

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        • raven-worxR Offline
          raven-worxR Offline
          raven-worx
          Moderators
          wrote on last edited by
          #9

          no...but QAbstractItemView does!
          Since you implicitly cast the view instance to a QWidget it's clear that the compiler complains about it!

          --- SUPPORT REQUESTS VIA CHAT WILL BE IGNORED ---
          If you have a question please use the forum so others can benefit from the solution in the future

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          • A Offline
            A Offline
            advseo32
            wrote on last edited by
            #10

            [quote author="raven-worx" date="1375905485"]no...but QAbstractItemView does!
            Since you implicitly cast the view instance to a QWidget it's clear that the compiler complains about it![/quote]

            I have no idea how i can do this

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            • raven-worxR Offline
              raven-worxR Offline
              raven-worx
              Moderators
              wrote on last edited by
              #11

              change the line
              @
              QWidget *view = this->view() ;
              @
              to
              @
              QAbstractItemView *view = this->view() ;
              @

              or just use the code i've posted in first place!

              --- SUPPORT REQUESTS VIA CHAT WILL BE IGNORED ---
              If you have a question please use the forum so others can benefit from the solution in the future

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              • A Offline
                A Offline
                advseo32
                wrote on last edited by
                #12

                [quote author="raven-worx" date="1375946208"]change the line
                @
                QWidget *view = this->view() ;
                @
                to
                @
                QAbstractItemView *view = this->view() ;
                @

                or just use the code i've posted in first place![/quote]

                also not working for me , always the width of Qtableview don't increased

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                • A Offline
                  A Offline
                  advseo32
                  wrote on last edited by
                  #13

                  how i can increase only the width of popup (Qtableview) ???

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                  • A Offline
                    A Offline
                    advseo32
                    wrote on last edited by
                    #14

                    like so,
                    ////////////////////////////////
                    // combobox //
                    //////////////////////////////////////////////////////////////////////////////////
                    // Qtableview her with all cells inside it ** Horizontal Header //
                    /////////////////////////////////////////////////////////////////////////////////
                    /// row 0 //
                    /////////////////////////////////////////////////////////////////////////////////
                    /// row 1 //
                    /////////////////////////////////////////////////////////////////////////////////
                    /// row 2 //
                    /////////////////////////////////////////////////////////////////////////////////

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                    0
                    • A Offline
                      A Offline
                      advseo32
                      wrote on last edited by
                      #15

                      no body know about this ?

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                      • A Offline
                        A Offline
                        advseo32
                        wrote on last edited by
                        #16

                        plz inform me if my question is clear or no ?

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                        • A Offline
                          A Offline
                          advseo32
                          wrote on last edited by
                          #17

                          i have used this but not working

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                          • B Offline
                            B Offline
                            Bowdzone
                            wrote on last edited by
                            #18

                            This works perfect, Thank you very much.

                            [quote author="raven-worx" date="1375879559"]you can subclass QComboBox and reimplement showPopup() method if you need the size content dependent. Something like this:
                            @
                            void MyComboBox::showPopup()
                            {
                            this->view()->setMinimumWidth(this->view()->sizeHintForColumn(0));
                            QComboBox::showPopup();
                            }
                            @[/quote]

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