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QPushbutton movable Dynamically

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  • A Offline
    A Offline
    Apeksha
    wrote on last edited by
    #1

    Hi,

    I want to move qpushbutton to top position if my widget is resized dynamically, Please help me how to approach.

    Thanks in advance.

    1 Reply Last reply
    0
    • ? Offline
      ? Offline
      A Former User
      wrote on last edited by
      #2

      Hi! See the following links for the building blocks:

      • QWidget::resizeEvent
      • QTimer
      • QWidget::move
      1 Reply Last reply
      1
      • A Offline
        A Offline
        Apeksha
        wrote on last edited by
        #3

        Hi,

        I went through the link, but I didn't how to approach my requirement.
        I am having widget and some labels and buttons in that, so when i resize my widget with mouse dragging the buttons which are placed bottom of widget should move to top position.

        mrjjM 1 Reply Last reply
        0
        • A Apeksha

          Hi,

          I went through the link, but I didn't how to approach my requirement.
          I am having widget and some labels and buttons in that, so when i resize my widget with mouse dragging the buttons which are placed bottom of widget should move to top position.

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

          @Apeksha

          When you resize the window widgets, its resizeEvent function is called.
          There you can move the button widget with move to where ever you want.

          Its unclear what top position is but if its another y position, then move should be fine.

          1 Reply Last reply
          2
          • A Offline
            A Offline
            Apeksha
            wrote on last edited by
            #5

            Hi mrji,

            How this resizeEvent is used? Can you please guide me?

            Thanks in advance

            mrjjM 1 Reply Last reply
            0
            • A Apeksha

              Hi mrji,

              How this resizeEvent is used? Can you please guide me?

              Thanks in advance

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

              @Apeksha

              Hi
              You must subclass the widget and implement your own version
              like

              void MYWidget::resizeEvent(QResizeEvent* event)
              {
                 MYWidget::resizeEvent(event); // make sure to call base
                 // Your code here.
              }
              
              1 Reply Last reply
              0
              • A Offline
                A Offline
                Apeksha
                wrote on last edited by
                #7

                Hi,
                I am using this resizeevent, but it is calling when binary runs.
                void MainWindow::resizeEvent(QResizeEvent* event)
                {
                qDebug("ResizeEvent");
                ui->pushButton->move(0,0);
                QMainWindow::resizeEvent(event);
                }

                mrjjM 1 Reply Last reply
                0
                • A Apeksha

                  Hi,
                  I am using this resizeevent, but it is calling when binary runs.
                  void MainWindow::resizeEvent(QResizeEvent* event)
                  {
                  qDebug("ResizeEvent");
                  ui->pushButton->move(0,0);
                  QMainWindow::resizeEvent(event);
                  }

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

                  @Apeksha

                  hi

                  • but it is calling when binary runs.

                  Yes, is that not what you asked for ?
                  Events only works when app is running.

                  Do you mean in Designer ?

                  1 Reply Last reply
                  1
                  • A Offline
                    A Offline
                    Apeksha
                    wrote on last edited by Apeksha
                    #9

                    Hi ,

                    No, it should called when user wil resize the gui using mouse.

                    mrjjM 1 Reply Last reply
                    0
                    • A Apeksha

                      Hi ,

                      No, it should called when user wil resize the gui using mouse.

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

                      @Apeksha

                      Sorry i do not understand what is wrong.

                      The resizeEvent will be called when user resize the running app.

                      Are you talking about inside Designer part, where you do widget design or where do you mean?

                      is your widget a Designer plugin ?

                      1 Reply Last reply
                      0
                      • A Offline
                        A Offline
                        Apeksha
                        wrote on last edited by
                        #11

                        Hi,

                        You have said when resize event is used, it calls when user resize the running app.

                        So I have done when user user resizes the app, then button have to move its Y axis, so i have written my code as follows:
                        void MainWindow::resizeEvent(QResizeEvent* event)
                        {
                        qDebug("ResizeEvent");
                        ui->pushButton->move(0,0);
                        QMainWindow::resizeEvent(event);
                        }

                        But when my is running, without resizing app, button position is changing, my requirement is when user resizes app then only button position i.e, y-axis have to change, I hope you got my point

                        jsulmJ mrjjM 2 Replies Last reply
                        0
                        • A Apeksha

                          Hi,

                          You have said when resize event is used, it calls when user resize the running app.

                          So I have done when user user resizes the app, then button have to move its Y axis, so i have written my code as follows:
                          void MainWindow::resizeEvent(QResizeEvent* event)
                          {
                          qDebug("ResizeEvent");
                          ui->pushButton->move(0,0);
                          QMainWindow::resizeEvent(event);
                          }

                          But when my is running, without resizing app, button position is changing, my requirement is when user resizes app then only button position i.e, y-axis have to change, I hope you got my point

                          jsulmJ Offline
                          jsulmJ Offline
                          jsulm
                          Lifetime Qt Champion
                          wrote on last edited by
                          #12

                          @Apeksha Why do you position the button manually? Why not just use layouts?

                          https://forum.qt.io/topic/113070/qt-code-of-conduct

                          1 Reply Last reply
                          0
                          • A Offline
                            A Offline
                            Apeksha
                            wrote on last edited by
                            #13

                            I am having some labels,lineedits and buttons in my gui, my requirement is when user resizes gui, then button have to change position.

                            1 Reply Last reply
                            0
                            • A Apeksha

                              Hi,

                              You have said when resize event is used, it calls when user resize the running app.

                              So I have done when user user resizes the app, then button have to move its Y axis, so i have written my code as follows:
                              void MainWindow::resizeEvent(QResizeEvent* event)
                              {
                              qDebug("ResizeEvent");
                              ui->pushButton->move(0,0);
                              QMainWindow::resizeEvent(event);
                              }

                              But when my is running, without resizing app, button position is changing, my requirement is when user resizes app then only button position i.e, y-axis have to change, I hope you got my point

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

                              @Apeksha
                              Ahhh, now i understand.
                              Well, there is no way to tell if done by system at start up or by the user.
                              But should it not do the same ?
                              Or only if size is smaller then the start size or ? what is the rule?

                              1 Reply Last reply
                              0
                              • A Offline
                                A Offline
                                Apeksha
                                wrote on last edited by
                                #15

                                Hi,
                                There is no way to do as per my requirement, when user resizes app, then button has to change its position.

                                mrjjM 1 Reply Last reply
                                0
                                • A Apeksha

                                  Hi,
                                  There is no way to do as per my requirement, when user resizes app, then button has to change its position.

                                  mrjjM Offline
                                  mrjjM Offline
                                  mrjj
                                  Lifetime Qt Champion
                                  wrote on last edited by
                                  #16

                                  Hi
                                  resizeEvent(event) is the way to do it.
                                  You just need to make sure then you do not react to the first resize events you get when app starts up.

                                  1 Reply Last reply
                                  0
                                  • A Offline
                                    A Offline
                                    Apeksha
                                    wrote on last edited by
                                    #17

                                    Hi,

                                    I am using resizeevent , but my button is moving initially when app runs, but it have to move when I resize my gui.
                                    void MainWindow::resizeEvent(QResizeEvent* event)
                                    {
                                    qDebug("ResizeEvent");
                                    ui->pushButton->move(0,0);
                                    QMainWindow::resizeEvent(event);
                                    }
                                    this is the way I am doing, any correction?

                                    mrjjM 1 Reply Last reply
                                    0
                                    • A Apeksha

                                      Hi,

                                      I am using resizeevent , but my button is moving initially when app runs, but it have to move when I resize my gui.
                                      void MainWindow::resizeEvent(QResizeEvent* event)
                                      {
                                      qDebug("ResizeEvent");
                                      ui->pushButton->move(0,0);
                                      QMainWindow::resizeEvent(event);
                                      }
                                      this is the way I am doing, any correction?

                                      mrjjM Offline
                                      mrjjM Offline
                                      mrjj
                                      Lifetime Qt Champion
                                      wrote on last edited by
                                      #18

                                      @Apeksha

                                      That is fine. but you will also do on first resize
                                      to avoid that, make some if statements
                                      the event has both oldSize and newSixe to check

                                      I cannot tell you what to write as i dont know
                                      what the rules are to move the button.
                                      At what sizes etc.

                                      You can also use a timer to only allowed after say 10 secs to
                                      avoid doing it on first resize.

                                      1 Reply Last reply
                                      0
                                      • A Offline
                                        A Offline
                                        Apeksha
                                        wrote on last edited by
                                        #19

                                        Hi,

                                        k, Assume my gui isof width and height 500,500, its resized to 400,400 then button has to change position, can u share sample code, I am not getting how to make

                                        jsulmJ 1 Reply Last reply
                                        0
                                        • A Apeksha

                                          Hi,

                                          k, Assume my gui isof width and height 500,500, its resized to 400,400 then button has to change position, can u share sample code, I am not getting how to make

                                          jsulmJ Offline
                                          jsulmJ Offline
                                          jsulm
                                          Lifetime Qt Champion
                                          wrote on last edited by
                                          #20

                                          @Apeksha Just add a boolean variable to your class and set it to false in the resizeEvent:

                                          MainWindow::MainWindow(...): firstTime(true)
                                          {
                                              ...
                                          }
                                          void MainWindow::resizeEvent(QResizeEvent* event)
                                          {
                                              qDebug("ResizeEvent");
                                              if (!firstTime) {
                                                  ui->pushButton->move(0,0);
                                              } else {
                                                  firstTime = false;
                                              }
                                              QMainWindow::resizeEvent(event);
                                          }
                                          

                                          https://forum.qt.io/topic/113070/qt-code-of-conduct

                                          1 Reply Last reply
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