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Pushbutton crashed.

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c++ qt
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  • JonBJ JonB

    @Gutks
    But why are you "re-implementing" it at all? Usually a user class sub-classes, not re-implements. Re-implementing is fraught, e.g. what happens if the internals change over time. Since you say "I'm a beginner" I cannot see why you would want to do such a thing, when 99.9% of other users do not.

    I keep saying the same thing, so I'll leave it to you now.

    G Offline
    G Offline
    Gutks
    wrote on last edited by
    #14

    @JonB
    Okay, thanks for trying to help. I will search for a solution to my problem.

    Pl45m4P JonBJ Pablo J. RoginaP 5 Replies Last reply
    0
    • G Gutks

      @JonB
      Okay, thanks for trying to help. I will search for a solution to my problem.

      Pl45m4P Offline
      Pl45m4P Offline
      Pl45m4
      wrote on last edited by
      #15

      @Gutks

      I already gave you an almost step by step manual how to solve your problem... You dont need Q_Q or reimplement any signals.


      If debugging is the process of removing software bugs, then programming must be the process of putting them in.

      ~E. W. Dijkstra

      1 Reply Last reply
      2
      • G Gutks

        @JonB
        Okay, thanks for trying to help. I will search for a solution to my problem.

        JonBJ Offline
        JonBJ Offline
        JonB
        wrote on last edited by
        #16

        @Gutks
        Both @Pl45m4 & I are trying to say you don't need to go down the route you are on....

        1 Reply Last reply
        1
        • G Gutks

          @JonB
          Okay, thanks for trying to help. I will search for a solution to my problem.

          Pablo J. RoginaP Offline
          Pablo J. RoginaP Offline
          Pablo J. Rogina
          wrote on last edited by
          #17

          @Gutks said in Pushbutton crashed.:

          if(p->button()==Qt::LeftButton){ui->lineEdit1->setText(QString::number(value1++));}
          
          else{if(p->button()==Qt::RightButton){ui->lineEdit1->setText(QString::number(value1--));}
          

          From your requirements it's apparent you need a custom QPushButton that extends existing one by adding just the rightclicked() signal, and nothing else. So you'll have both signals (existing left click) and new one (right click) to connect as you wish.

          Please take a look at this SO question & answers.

          Upvote the answer(s) that helped you solve the issue
          Use "Topic Tools" button to mark your post as Solved
          Add screenshots via postimage.org
          Don't ask support requests via chat/PM. Please use the forum so others can benefit from the solution in the future

          1 Reply Last reply
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          • G Gutks

            @JonB
            Okay, thanks for trying to help. I will search for a solution to my problem.

            JonBJ Offline
            JonBJ Offline
            JonB
            wrote on last edited by JonB
            #18

            @Gutks
            If what @Pablo-J-Rogina has discerned is correct --- you just want a left-/right-click to increment/decrement a number in a QLineEdit, is that right? --- then you would be better just using a QSpinBox, which is for entering numbers, and you wouldn't have any of this.....

            Pablo J. RoginaP 1 Reply Last reply
            1
            • JonBJ JonB

              @Gutks
              If what @Pablo-J-Rogina has discerned is correct --- you just want a left-/right-click to increment/decrement a number in a QLineEdit, is that right? --- then you would be better just using a QSpinBox, which is for entering numbers, and you wouldn't have any of this.....

              Pablo J. RoginaP Offline
              Pablo J. RoginaP Offline
              Pablo J. Rogina
              wrote on last edited by
              #19

              @JonB said in Pushbutton crashed.:

              then you would be better just using a QSpinBox,

              I think the goal here is the rightclicked() signal, what you connect that to is not relevant at this point

              Upvote the answer(s) that helped you solve the issue
              Use "Topic Tools" button to mark your post as Solved
              Add screenshots via postimage.org
              Don't ask support requests via chat/PM. Please use the forum so others can benefit from the solution in the future

              JonBJ 1 Reply Last reply
              3
              • Pablo J. RoginaP Pablo J. Rogina

                @JonB said in Pushbutton crashed.:

                then you would be better just using a QSpinBox,

                I think the goal here is the rightclicked() signal, what you connect that to is not relevant at this point

                JonBJ Offline
                JonBJ Offline
                JonB
                wrote on last edited by JonB
                #20

                @Pablo-J-Rogina
                Oh, I see. You may be right. Or it just might turn out the user was going to use a left-/-right-click on a button to inc/dec a number, you never know... :)

                On a different tone, it's "unusual" to have the user right-click on a button. Possible, but possibly not intuitive. A "rocker" pushbutton (click at left/right for different behaviour, but with left mouse) might be another possibility.

                Pl45m4P 1 Reply Last reply
                1
                • G Gutks

                  @JonB
                  Okay, thanks for trying to help. I will search for a solution to my problem.

                  Pl45m4P Offline
                  Pl45m4P Offline
                  Pl45m4
                  wrote on last edited by Pl45m4
                  #21

                  @Gutks

                  Button.h

                  #ifndef LR_CLICKBUTTON_H
                  #define LR_CLICKBUTTON_H
                  
                  #include <QPushButton>
                  
                  class LR_ClickButton: public QPushButton
                  {
                      Q_OBJECT
                  public:
                  
                      LR_ClickButton(QWidget *parent = nullptr);
                  
                  
                  protected:
                     void	mousePressEvent(QMouseEvent *e) override;
                     void mouseReleaseEvent(QMouseEvent *e) override;
                  
                  signals:
                      // Not needed, since one signal which sends MouseEvent to get handled in slot
                      //void leftClicked();
                      //void rightClicked();
                  
                      void myClicked(QMouseEvent *e);
                  };
                  
                  #endif // LR_CLICKBUTTON_H
                  

                  Button.cpp

                  #include "lr_clickbutton.h"
                  #include <QMouseEvent>
                  #include <QDebug>
                  LR_ClickButton::LR_ClickButton(QWidget *parent):
                      QPushButton(parent)
                  {
                  
                  }
                  
                  void LR_ClickButton::mousePressEvent(QMouseEvent *e)
                  {
                      QPushButton::mousePressEvent(e);
                  }
                  
                  void LR_ClickButton::mouseReleaseEvent(QMouseEvent *e)
                  {
                      if(e->button() == Qt::LeftButton)
                      {
                          qDebug() << "Left";
                          emit myClicked(e);
                      }
                      else if (e->button() == Qt::RightButton) {
                  
                          qDebug() << "Right";
                          emit myClicked(e);
                  
                      }
                          QPushButton::mouseReleaseEvent(e);
                  }
                  

                  MainWindow.h

                  public slots:
                      void myButtonClicked(QMouseEvent *e);
                  

                  MainWindow.cpp

                  // #########  C'TOR  #####################
                      LR_ClickButton *button1 = new LR_ClickButton(this);
                  
                      centralWidget()->layout()->addWidget(button1);
                  
                      connect(button1, &LR_ClickButton::myClicked, this, &MainWindow::myButtonClicked);
                  
                  // ######################################
                  
                  
                  void MainWindow::myButtonClicked(QMouseEvent *e)
                  {
                      if(e->button() == Qt::LeftButton)
                      {
                          // Of course you can put anything you want here
                          int val = ui->spinBox->value();
                          ui->spinBox->setValue(val + 1);
                      }
                      else if (e->button() == Qt::RightButton) {
                  
                          // or here
                          int val = ui->spinBox->value();
                          ui->spinBox->setValue(val - 1);
                      }
                  }
                  
                  
                  

                  Wasn't that hard, right? :)

                  Result:

                  3 left-clicks increase value by 3.
                  Bildschirmfoto vom 2020-08-19 15-13-02.png

                  2 right-clicks decrease value by 2 again.
                  Bildschirmfoto vom 2020-08-19 15-13-33.png


                  If debugging is the process of removing software bugs, then programming must be the process of putting them in.

                  ~E. W. Dijkstra

                  1 Reply Last reply
                  1
                  • JonBJ JonB

                    @Pablo-J-Rogina
                    Oh, I see. You may be right. Or it just might turn out the user was going to use a left-/-right-click on a button to inc/dec a number, you never know... :)

                    On a different tone, it's "unusual" to have the user right-click on a button. Possible, but possibly not intuitive. A "rocker" pushbutton (click at left/right for different behaviour, but with left mouse) might be another possibility.

                    Pl45m4P Offline
                    Pl45m4P Offline
                    Pl45m4
                    wrote on last edited by
                    #22

                    @JonB said in Pushbutton crashed.:

                    On a different tone, it's "unusual" to have the user right-click on a button. Possible, but possibly not intuitive

                    Might not be the most intuitive solution but this is actually used a lot in games (with a hint to this behavior ofc)


                    If debugging is the process of removing software bugs, then programming must be the process of putting them in.

                    ~E. W. Dijkstra

                    JonBJ 1 Reply Last reply
                    1
                    • Pl45m4P Pl45m4

                      @JonB said in Pushbutton crashed.:

                      On a different tone, it's "unusual" to have the user right-click on a button. Possible, but possibly not intuitive

                      Might not be the most intuitive solution but this is actually used a lot in games (with a hint to this behavior ofc)

                      JonBJ Offline
                      JonBJ Offline
                      JonB
                      wrote on last edited by
                      #23

                      @Pl45m4
                      Point taken! Not in any of the games I play that I can think of, though most of mine are 2D turn-based from the last millennium... ;-)

                      1 Reply Last reply
                      2
                      • G Offline
                        G Offline
                        Gutks
                        wrote on last edited by Gutks
                        #24

                        @Christian-Ehrlicher @Pl45m4 @JonB @Pablo-J-Rogina

                        Thank you very much, you don't know how it helped me. Otherwise, I would have to create an internal storage system for each button between the tabs and remove it when editing the line.

                        Yes, and a tool I am creating to help the 1 game community. How does it activate as resolved?
                        Captura de tela de 2020-08-19 08-05-11.png

                        JonBJ 1 Reply Last reply
                        1
                        • G Gutks

                          @Christian-Ehrlicher @Pl45m4 @JonB @Pablo-J-Rogina

                          Thank you very much, you don't know how it helped me. Otherwise, I would have to create an internal storage system for each button between the tabs and remove it when editing the line.

                          Yes, and a tool I am creating to help the 1 game community. How does it activate as resolved?
                          Captura de tela de 2020-08-19 08-05-11.png

                          JonBJ Offline
                          JonBJ Offline
                          JonB
                          wrote on last edited by
                          #25

                          @Gutks said in Pushbutton crashed.:

                          How does it activate as resolved

                          Either at bottom of page Topic Tools button, or if you feel a particular post answered it the vertical ... button at the right on that post.

                          Pl45m4P 1 Reply Last reply
                          2
                          • JonBJ JonB

                            @Gutks said in Pushbutton crashed.:

                            How does it activate as resolved

                            Either at bottom of page Topic Tools button, or if you feel a particular post answered it the vertical ... button at the right on that post.

                            Pl45m4P Offline
                            Pl45m4P Offline
                            Pl45m4
                            wrote on last edited by
                            #26

                            @JonB

                            This is exactly what I was expecting and what I thought of.... These type of games, where you have ingame shops and a lot of inventories... If you left-click an item, you probably buy it from shop or use it, if you right-click, you drop it or sell it :)


                            If debugging is the process of removing software bugs, then programming must be the process of putting them in.

                            ~E. W. Dijkstra

                            1 Reply Last reply
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