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add QLabel into QLineEdit

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  • mrjjM mrjj

    @marlenet15
    yes
    its not pretty but
    \J\a\n\ \1\9\ \2\0\1\6:AAAAAA

    does look correct.

    M Offline
    M Offline
    marlenet15
    wrote on last edited by marlenet15
    #14

    @mrjj So right now in my code the date that is going into the QLineedit is the current date. So I would need to separate the string and make sure to add \ ? Also what do the A's mean? the ones you put in your example?

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    • raven-worxR raven-worx

      i also think the input mask is actually the best way, or maybe even better a custom QValidator.
      But to just add something to the (rather ugly) QLabel idea: You could use QLineEdit::setTextMargins() to move the left-most position of the cursor.

      M Offline
      M Offline
      marlenet15
      wrote on last edited by
      #15

      @raven-worx yes I agree the input mask Is the best way to go. However, it's a new concept for me since I never heard of it. That is why I am very confused to how it works.

      mrjjM 1 Reply Last reply
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      • M marlenet15

        @raven-worx yes I agree the input mask Is the best way to go. However, it's a new concept for me since I never heard of it. That is why I am very confused to how it works.

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

        @raven-worx said:
        setTextMargins
        +1 That would work for custom control.

        yes, you would need to put \ into your date.
        the AAAA is input specifier .
        Go to a LineEdit and find inputmask property and press F1 to read about them.

        M 1 Reply Last reply
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        • mrjjM mrjj

          @raven-worx said:
          setTextMargins
          +1 That would work for custom control.

          yes, you would need to put \ into your date.
          the AAAA is input specifier .
          Go to a LineEdit and find inputmask property and press F1 to read about them.

          M Offline
          M Offline
          marlenet15
          wrote on last edited by marlenet15
          #17

          @mrjj So if the user is allowed 100 characters for the QLineEdit do I have to put 100 A's?

          mrjjM raven-worxR 2 Replies Last reply
          0
          • M marlenet15

            @mrjj So if the user is allowed 100 characters for the QLineEdit do I have to put 100 A's?

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

            @marlenet15 erhm, yes I think. maybe there is way
            but inputmasks are normally used for short input like date
            or iP etc

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            • M marlenet15

              @mrjj So if the user is allowed 100 characters for the QLineEdit do I have to put 100 A's?

              raven-worxR Offline
              raven-worxR Offline
              raven-worx
              Moderators
              wrote on last edited by
              #19

              @marlenet15
              if you are familiar with regular expressions you might want to use QRegExpValidator which will result in the same behavior
              And set it on the line edit.

              --- 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

              mrjjM 1 Reply Last reply
              1
              • raven-worxR raven-worx

                @marlenet15
                if you are familiar with regular expressions you might want to use QRegExpValidator which will result in the same behavior
                And set it on the line edit.

                mrjjM Offline
                mrjjM Offline
                mrjj
                Lifetime Qt Champion
                wrote on last edited by
                #20

                @raven-worx
                oh. So QRegExpValidator can have static text?

                raven-worxR 1 Reply Last reply
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                • mrjjM mrjj

                  @raven-worx
                  oh. So QRegExpValidator can have static text?

                  raven-worxR Offline
                  raven-worxR Offline
                  raven-worx
                  Moderators
                  wrote on last edited by
                  #21

                  @mrjj
                  Of course, a regular expression can have a static text included

                  --- 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

                  mrjjM M 2 Replies Last reply
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                  • raven-worxR raven-worx

                    @mrjj
                    Of course, a regular expression can have a static text included

                    mrjjM Offline
                    mrjjM Offline
                    mrjj
                    Lifetime Qt Champion
                    wrote on last edited by
                    #22

                    @raven-worx
                    yes, but i didn't know it would show in lineEdit as Validator sounds so none visual :)

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                    • raven-worxR raven-worx

                      @mrjj
                      Of course, a regular expression can have a static text included

                      M Offline
                      M Offline
                      marlenet15
                      wrote on last edited by
                      #23

                      @raven-worx Can you please show me an example of that? I have never heard of that and I googled it and I didn't find anything about that :)

                      raven-worxR 1 Reply Last reply
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                      • M marlenet15

                        @raven-worx Can you please show me an example of that? I have never heard of that and I googled it and I didn't find anything about that :)

                        raven-worxR Offline
                        raven-worxR Offline
                        raven-worx
                        Moderators
                        wrote on last edited by
                        #24

                        @marlenet15
                        you can see how to use QRegExpValidator in the link i've posted.
                        Use a RegExp similiar to this one. There are tons of material on the web about regexp to learn.

                        QRegExp("Comments\\: ([Jan|Feb|Mar|Apr|Jun|Jul|Aug|Sep|Nov|Dec] [0-3]?[0-9] [0-9]{4}\\: (.+))");
                        

                        This regexp is surely not perfect, but enough to get an idea and continue to learn the syntax i guess.

                        --- 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

                        kshegunovK M 2 Replies Last reply
                        0
                        • raven-worxR raven-worx

                          @marlenet15
                          you can see how to use QRegExpValidator in the link i've posted.
                          Use a RegExp similiar to this one. There are tons of material on the web about regexp to learn.

                          QRegExp("Comments\\: ([Jan|Feb|Mar|Apr|Jun|Jul|Aug|Sep|Nov|Dec] [0-3]?[0-9] [0-9]{4}\\: (.+))");
                          

                          This regexp is surely not perfect, but enough to get an idea and continue to learn the syntax i guess.

                          kshegunovK Offline
                          kshegunovK Offline
                          kshegunov
                          Moderators
                          wrote on last edited by
                          #25

                          @raven-worx
                          If I may interject, [Jan|Feb|Mar|Apr|Jun|Jul|Aug|Sep|Nov|Dec] is not okay for matching one should use a (non-capturing) group instead. i.e: (?:Jan|Feb|Mar|Apr|Jun|Jul|Aug|Sep|Nov|Dec).

                          Read and abide by the Qt Code of Conduct

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                          • ValentinMicheletV Offline
                            ValentinMicheletV Offline
                            ValentinMichelet
                            wrote on last edited by
                            #26

                            My two cents: if you have Qt5, consider using QRegularExpressionValidator and QRegularExpression instead, since the motor has been remarkably improved.

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                            • raven-worxR raven-worx

                              @marlenet15
                              you can see how to use QRegExpValidator in the link i've posted.
                              Use a RegExp similiar to this one. There are tons of material on the web about regexp to learn.

                              QRegExp("Comments\\: ([Jan|Feb|Mar|Apr|Jun|Jul|Aug|Sep|Nov|Dec] [0-3]?[0-9] [0-9]{4}\\: (.+))");
                              

                              This regexp is surely not perfect, but enough to get an idea and continue to learn the syntax i guess.

                              M Offline
                              M Offline
                              marlenet15
                              wrote on last edited by marlenet15
                              #27

                              @raven-worx I just tried it and the amazing thing is the cursor moves automatically moves to the right of the date. However, I can still edit the date and I don't want it to be edited whatsoever. When the mouse clicks the QLineEdit, I want it so that the cursor starts right after the date text. :( Is it possible for this? Thank you so much for you help!

                              This is the code I used:

                              QRegExp rx("Comments\\: ([Jan|Feb|Mar|Apr|Jun|Jul|Aug|Sep|Nov|Dec] [0-3]?[0-9] [0-9]{4}\\: (.+))");
                              QValidator *validator = new QRegExpValidator(rx, this);
                              ui->lineEdit->setValidator(validator);
                              
                              QDate date = QDate::currentDate();
                              QTime time = QTime::currentTime();
                              ui->lineEdit->setText(date.toString("MMM dd yyyy")+" "+time.toString("hh:mm:ss"));
                              
                              raven-worxR 1 Reply Last reply
                              0
                              • M marlenet15

                                @raven-worx I just tried it and the amazing thing is the cursor moves automatically moves to the right of the date. However, I can still edit the date and I don't want it to be edited whatsoever. When the mouse clicks the QLineEdit, I want it so that the cursor starts right after the date text. :( Is it possible for this? Thank you so much for you help!

                                This is the code I used:

                                QRegExp rx("Comments\\: ([Jan|Feb|Mar|Apr|Jun|Jul|Aug|Sep|Nov|Dec] [0-3]?[0-9] [0-9]{4}\\: (.+))");
                                QValidator *validator = new QRegExpValidator(rx, this);
                                ui->lineEdit->setValidator(validator);
                                
                                QDate date = QDate::currentDate();
                                QTime time = QTime::currentTime();
                                ui->lineEdit->setText(date.toString("MMM dd yyyy")+" "+time.toString("hh:mm:ss"));
                                
                                raven-worxR Offline
                                raven-worxR Offline
                                raven-worx
                                Moderators
                                wrote on last edited by raven-worx
                                #28

                                @marlenet15

                                Try this:

                                QString dateTimeStr = QDateTime::currentDateTime().toString("MMM dd yyyy hh:mm:ss");
                                QString rxStr("Comments\\: %1\\: (.+)");
                                QRegExp rx( rxStr.arg(dateTimeStr), Qt::CaseSensitive, QRegExp::RegExp2 );
                                QValidator *validator = new QRegExpValidator(rx, this);
                                ui->lineEdit->setValidator(validator);
                                

                                --- 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

                                M 1 Reply Last reply
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                                • raven-worxR raven-worx

                                  @marlenet15

                                  Try this:

                                  QString dateTimeStr = QDateTime::currentDateTime().toString("MMM dd yyyy hh:mm:ss");
                                  QString rxStr("Comments\\: %1\\: (.+)");
                                  QRegExp rx( rxStr.arg(dateTimeStr), Qt::CaseSensitive, QRegExp::RegExp2 );
                                  QValidator *validator = new QRegExpValidator(rx, this);
                                  ui->lineEdit->setValidator(validator);
                                  
                                  M Offline
                                  M Offline
                                  marlenet15
                                  wrote on last edited by
                                  #29

                                  @raven-worx I can still edit the date_time stamp :(

                                  kshegunovK 1 Reply Last reply
                                  0
                                  • M marlenet15

                                    @raven-worx I can still edit the date_time stamp :(

                                    kshegunovK Offline
                                    kshegunovK Offline
                                    kshegunov
                                    Moderators
                                    wrote on last edited by kshegunov
                                    #30

                                    @marlenet15
                                    Hello,
                                    I believe you are going to need an input mask after all. I think you should try something like this:

                                    QString date = QDateTime::currentDateTime().toString("MMM dd yyyy hh:mm:ss");
                                    QString heading = QStringLiteral("Comments %1: %2").arg(date); //< Construct the heading
                                    QRegularExpression escaperx(QStringLiteral("([AaNnXx09Dd#HhBb><!\\\\]{1})")); //< Escape regex for input mask special characters
                                    heading.replace(escaperx, QStringLiteral("\\\\1")); //< Escape the input mask
                                    
                                    QString mask = heading.arg("", 255, QLatin1Char('x')); //< Add 255 optional characters to the mask for the user to fill.
                                    _dateLabel->setInputMask(mask);
                                    

                                    Then if you wish you could add a validator to ensure the user has entered correct data.

                                    Kind regards.

                                    EDIT:
                                    I had forgotten to add the actual characters that the user can fill to the mask, but I edited the example and it should be correct now.

                                    Read and abide by the Qt Code of Conduct

                                    M 1 Reply Last reply
                                    2
                                    • kshegunovK kshegunov

                                      @marlenet15
                                      Hello,
                                      I believe you are going to need an input mask after all. I think you should try something like this:

                                      QString date = QDateTime::currentDateTime().toString("MMM dd yyyy hh:mm:ss");
                                      QString heading = QStringLiteral("Comments %1: %2").arg(date); //< Construct the heading
                                      QRegularExpression escaperx(QStringLiteral("([AaNnXx09Dd#HhBb><!\\\\]{1})")); //< Escape regex for input mask special characters
                                      heading.replace(escaperx, QStringLiteral("\\\\1")); //< Escape the input mask
                                      
                                      QString mask = heading.arg("", 255, QLatin1Char('x')); //< Add 255 optional characters to the mask for the user to fill.
                                      _dateLabel->setInputMask(mask);
                                      

                                      Then if you wish you could add a validator to ensure the user has entered correct data.

                                      Kind regards.

                                      EDIT:
                                      I had forgotten to add the actual characters that the user can fill to the mask, but I edited the example and it should be correct now.

                                      M Offline
                                      M Offline
                                      marlenet15
                                      wrote on last edited by
                                      #31

                                      @kshegunov it works thank you very much and to everyone!

                                      kshegunovK 1 Reply Last reply
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                                      • M marlenet15

                                        @kshegunov it works thank you very much and to everyone!

                                        kshegunovK Offline
                                        kshegunovK Offline
                                        kshegunov
                                        Moderators
                                        wrote on last edited by
                                        #32

                                        @marlenet15
                                        No problem, I'm glad I could be of assistance.

                                        Read and abide by the Qt Code of Conduct

                                        1 Reply Last reply
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