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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.

    raven-worxR Offline
    raven-worxR Offline
    raven-worx
    Moderators
    wrote on last edited by raven-worx
    #13

    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.

    --- 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
    1
    • 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
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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?

              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

              1 Reply Last reply
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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
                  0
                  • 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 :)

                      1 Reply Last reply
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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
                        0
                        • 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

                            1 Reply Last reply
                            0
                            • 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.

                              1 Reply 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.

                                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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