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get clicked date current ?

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  • mrjjM Offline
    mrjjM Offline
    mrjj
    Lifetime Qt Champion
    wrote on last edited by
    #3

    Hi
    You can use this signal
    https://doc.qt.io/qt-5/qcalendarwidget.html#activated
    or
    void QCalendarWidget::clicked(const QDate &date)

    1 Reply Last reply
    3
    • D Offline
      D Offline
      Duy Khang
      wrote on last edited by
      #4

      can you give me an example ?

      mrjjM 1 Reply Last reply
      0
      • D Duy Khang

        can you give me an example ?

        mrjjM Offline
        mrjjM Offline
        mrjj
        Lifetime Qt Champion
        wrote on last edited by
        #5

        @Duy-Khang

        Hi
        Its just a connect. Here i used a lambda but you can ofc also connect to a normal slot.

          connect(ui->calendarWidget, &QCalendarWidget::clicked, this, [](const QDate & date) {
                qDebug() << "Data is" << date;
            });
        
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        1
        • D Offline
          D Offline
          Duy Khang
          wrote on last edited by
          #6

          and help me show normal slot, i use nomal slot but it doesn't work

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          0
          • D Offline
            D Offline
            Duy Khang
            wrote on last edited by
            #7

            QObject::connect(calendar,SIGNAL(selectionChanged()),this,SLOT(onSelectionChanged()));

            void Student_Interactive_Interface::onSelectionChanged()
            {
            qDebug()<<calendar->selectedDate().toString("dd/MM/yyyy");
            }

            but,it doesn't work

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            0
            • mrjjM Offline
              mrjjM Offline
              mrjj
              Lifetime Qt Champion
              wrote on last edited by
              #8

              Hi
              in .h

              class MainWindow : public QMainWindow
              {
                  Q_OBJECT
              ...    
              public slots:
                  void DateSelected(const QDate & date);
              
              

              or

              public slots:
                  void selectionChanged();
              

              and in .cpp

              void MainWindow::DateSelected(const QDate &date)
              {
                  qDebug() << "Date is" << date;
              }
              or
              void MainWindow::selectionChanged()
              {
                  qDebug()<<ui->calendarWidget->selectedDate().toString("dd/MM/yyyy");
              }
              
              

              connect(ui->calendarWidget, &QCalendarWidget::clicked, this, &MainWindow::DateSelected );
              or
              connect(ui->calendarWidget, &QCalendarWidget::selectionChanged, this, &MainWindow::selectionChanged );

              both work so make sure that calendar is infact the one you have on the screen and not another one.

              D 1 Reply Last reply
              1
              • D Offline
                D Offline
                Duy Khang
                wrote on last edited by
                #9

                thank you very much.!

                1 Reply Last reply
                0
                • mrjjM mrjj

                  Hi
                  in .h

                  class MainWindow : public QMainWindow
                  {
                      Q_OBJECT
                  ...    
                  public slots:
                      void DateSelected(const QDate & date);
                  
                  

                  or

                  public slots:
                      void selectionChanged();
                  

                  and in .cpp

                  void MainWindow::DateSelected(const QDate &date)
                  {
                      qDebug() << "Date is" << date;
                  }
                  or
                  void MainWindow::selectionChanged()
                  {
                      qDebug()<<ui->calendarWidget->selectedDate().toString("dd/MM/yyyy");
                  }
                  
                  

                  connect(ui->calendarWidget, &QCalendarWidget::clicked, this, &MainWindow::DateSelected );
                  or
                  connect(ui->calendarWidget, &QCalendarWidget::selectionChanged, this, &MainWindow::selectionChanged );

                  both work so make sure that calendar is infact the one you have on the screen and not another one.

                  D Offline
                  D Offline
                  Duy Khang
                  wrote on last edited by
                  #10

                  @mrjj can you show me which document to learn about QObject::connect() and be master like you ? hihi

                  mrjjM 1 Reply Last reply
                  0
                  • D Duy Khang

                    @mrjj can you show me which document to learn about QObject::connect() and be master like you ? hihi

                    mrjjM Offline
                    mrjjM Offline
                    mrjj
                    Lifetime Qt Champion
                    wrote on last edited by
                    #11

                    @Duy-Khang

                    Hi
                    As you noticed, there are 2 versions. the old one using the SIGNAL and SLOT words, and the new one I did use here.

                    The new one is better than the old one as it will give a compiler error if something does not match. like missing parameters etc.

                    https://wiki.qt.io/New_Signal_Slot_Syntax

                    how it works, is explained here
                    https://doc.qt.io/qt-5/signalsandslots.html

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                    2
                    • D Offline
                      D Offline
                      Duy Khang
                      wrote on last edited by
                      #12

                      okay, thanks a lot !

                      1 Reply Last reply
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