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Thread: Encoding problem

  1. #1
    Join Date
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    Default Encoding problem

    Hello,
    I use the following software: Qt 4.8.1, VC++ 2010, MS Windows, Qt Creator




    I prepared the following QWizardPage class:
    Qt Code:
    1. class AppWizard : public QWizard
    2. {
    3. Q_OBJECT
    4. public:
    5. explicit AppWizard(QWidget *parent = 0);
    6. };
    7.  
    8.  
    9. class WelcomePage : public QWizardPage
    10. {
    11. Q_OBJECT
    12. public:
    13. explicit WelcomePage(QWidget *parent = 0);
    14. private:
    15. QLabel *intro_label_1;
    16. QLabel *intro_label_2;
    17. QVBoxLayout *vbox_layout;
    18. QGridLayout *grid_layout;
    19. QLabel *email_label;
    20. QLineEdit *email_edit;
    21. QRegExpValidator *email_validator;
    22. QLabel *password_label;
    23. QLineEdit *password_edit;
    24. QPushButton *login;
    25. QLabel *register_label;
    26. };
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    Qt Code:
    1. WelcomePage::WelcomePage(QWidget *parent) :
    2. QWizardPage(parent)
    3. {
    4. // QTextCodec::setCodecForCStrings(QTextCodec::codecForName("UTF-8"));
    5. setTitle("There is title");
    6. setButtonText(QWizard::NextButton, "Another name");
    7. setButtonText(QWizard::CancelButton, "Another cancel");
    8.  
    9. intro_label_1 = new QLabel("Welcome to software");
    10. intro_label_2 = new QLabel("ółćłćłźźłżżźćźżłźżć.");
    11. email_label = new QLabel("ółłłąął");
    12. email_edit = new QLineEdit(this);
    13.  
    14. password_label = new QLabel("ddsdfdsffds");
    15. password_edit = new QLineEdit(this);
    16. password_edit->setEchoMode(QLineEdit::Password);
    17. login = new QPushButton();
    18. login->setText("dsfsfsfsfdsf");
    19. login->setMaximumWidth(100);
    20. register_label = new QLabel("dsfdfsdsfdsff");
    21.  
    22. grid_layout = new QGridLayout(this);
    23. grid_layout->addWidget(intro_label_1, 0, 0);
    24. grid_layout->addWidget(intro_label_2, 1,0);
    25. grid_layout->addWidget(email_label, 2, 0);
    26. grid_layout->addWidget(email_edit, 2, 1);
    27. grid_layout->addWidget(password_label, 3, 0);
    28. grid_layout->addWidget(password_edit, 3, 1);
    29. grid_layout->addWidget(login, 4, 0);
    30. grid_layout->addWidget(register_label, 7, 0);
    31. }
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    However,the encodings fails. I tried to fix this using:
    Qt Code:
    1. // QTextCodec::setCodecForCStrings(QTextCodec::codecForName("UTF-8"));
    To copy to clipboard, switch view to plain text mode 

    Does Qt Creator use UTF-8 as default encoding? Why unicode chars are not displayed correctly in additional class?

    Thank you for you attention,

  2. #2
    Join Date
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    Default Re: Encoding problem

    Your biological and technological distinctiveness will be added to our own. Resistance is futile.

    Please ask Qt related questions on the forum and not using private messages or visitor messages.


  3. #3
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    Default Re: Encoding problem

    If I use function QString::fromUtf8 I see another characters, but not correct. I see something like question mark. I tried this option before asking. Is is possible that class file added by Qt Creator has diffrent encoding than UTF-8? Where can I check this issue?

  4. #4
    Join Date
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    Default Re: Encoding problem

    Quote Originally Posted by newb_developer View Post
    Is is possible that class file added by Qt Creator has diffrent encoding than UTF-8?
    Of course. You could be using latin2 or cp1250.

    Where can I check this issue?
    In editor settings, AFAIR.

    Note, that it is always advised to use only ascii characters in your source code for user visible strings and provide translation files that use national glyphs such as polish, russian, chinese, etc.
    Your biological and technological distinctiveness will be added to our own. Resistance is futile.

    Please ask Qt related questions on the forum and not using private messages or visitor messages.


  5. The following user says thank you to wysota for this useful post:

    newb_developer (4th July 2012)

  6. #5
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    Default Re: Encoding problem

    I'll try to use translate file and it seems to be encoding error. Thank you.
    Last edited by newb_developer; 4th July 2012 at 20:10.

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