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Problem with using QHBoxLayout

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  • W Offline
    W Offline
    Waxta
    wrote on last edited by Waxta
    #15

    One of the file when I try to initiate HBoxLayout. Errors occur when I do something with layout var:

    #include "ieeefield.h"
    #include <QLineEdit>
    #include "qbinaryvalidator.h"
    #include <QHBoxLayout>
    
    IEEEField::IEEEField(QWidget *parent) : QWidget(parent)
    {
        QHBoxLayout * layout = new QHBoxLayout();
        QLineEdit * signField = new QLineEdit();
        QLineEdit * exponentField = new QLineEdit();
        QLineEdit * mantissField = new QLineEdit();
    
        signField->setAlignment(Qt::AlignCenter);
        exponentField->setAlignment(Qt::AlignCenter);
        mantissField->setAlignment(Qt::AlignCenter);
    
        signField->setMaxLength(1);
        exponentField->setMaxLength(8);
        mantissField->setMaxLength(23);
    
        QBinaryValidator * binaryValidator = new QBinaryValidator();
        signField->setValidator(binaryValidator);
        exponentField->setValidator(binaryValidator);
        mantissField->setValidator(binaryValidator);
        delete binaryValidator;
    
        QFont font;
        font.setPointSize(font.pointSize() + 8);
        signField->setFont(font);
        exponentField->setFont(font);
        mantissField->setFont(font);
    
        layout->addWidget(signField);
        layout->addWidget(exponentField);
        layout->addWidget(mantissField);
        delete signField;
        delete exponentField;
        delete mantissField;
    
        layout->setSpacing(5);
        this->setLayout(layout);
    }
    
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    • W Offline
      W Offline
      Waxta
      wrote on last edited by
      #16

      U know guys, even the calculator example does not work (but I ran this example before and it worked) :D This must be an IDE fault. Any idea?

      mrjjM 1 Reply Last reply
      0
      • W Waxta

        U know guys, even the calculator example does not work (but I ran this example before and it worked) :D This must be an IDE fault. Any idea?

        mrjjM Offline
        mrjjM Offline
        mrjj
        Lifetime Qt Champion
        wrote on last edited by
        #17

        @Waxta
        Try to make a default GUI project and see if that works. Maybe add widget and layout to UI.

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        • W Offline
          W Offline
          Waxta
          wrote on last edited by Waxta
          #18

          https://doc.qt.io/qt-5/qtwidgets-widgets-calculator-example.html
          I copied whole app but still having same problems (mainly with QGridLayout).

          Edit: When i double-clicked on random error it reffered me to QHBoxLayout class declaration ![alt text] (http://ifotos.pl/zobacz/errorjpg_awhwxah.jpg)

          mrjjM 1 Reply Last reply
          0
          • W Waxta

            https://doc.qt.io/qt-5/qtwidgets-widgets-calculator-example.html
            I copied whole app but still having same problems (mainly with QGridLayout).

            Edit: When i double-clicked on random error it reffered me to QHBoxLayout class declaration ![alt text] (http://ifotos.pl/zobacz/errorjpg_awhwxah.jpg)

            mrjjM Offline
            mrjjM Offline
            mrjj
            Lifetime Qt Champion
            wrote on last edited by
            #19

            @Waxta
            It seems to be inside Qt files?
            Well testing with default project could also be interesting.

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            • W Offline
              W Offline
              Waxta
              wrote on last edited by
              #20

              I don't know. I just think the problem will be the same in other projects. The error started appear when I clicked "clear" in procject menu - actually don't know what this option clears XD

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              • W Offline
                W Offline
                Waxta
                wrote on last edited by
                #21

                Okay, looks like I need to uninstall Qt. Farwell, it was such pleasure to spent with Qt about 5hrs... XD

                mrjjM 1 Reply Last reply
                0
                • W Waxta

                  Okay, looks like I need to uninstall Qt. Farwell, it was such pleasure to spent with Qt about 5hrs... XD

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

                  @Waxta
                  Well unless you test a default project we wont get much wiser.
                  Maybe your installation had an issue or it was just the project.

                  Clear just removes the build folder files.

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                  • W Offline
                    W Offline
                    Waxta
                    wrote on last edited by Waxta
                    #23

                    I've reinstalled Qt. Now it works. Problem solved then :D

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                    • SGaistS Offline
                      SGaistS Offline
                      SGaist
                      Lifetime Qt Champion
                      wrote on last edited by
                      #24

                      Looks like there's been some modification in Qt's headers.

                      Anyway, since you have it working now, please mark the thread as solved using the "Topic Tools" button so that other forum users may know a solution have been found :)

                      Interested in AI ? www.idiap.ch
                      Please read the Qt Code of Conduct - https://forum.qt.io/topic/113070/qt-code-of-conduct

                      1 Reply Last reply
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