Encoding problem

[newb_developer]

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




I prepared the following QWizardPage class:

class AppWizard : public QWizard
{
    Q_OBJECT
public:
    explicit AppWizard(QWidget *parent = 0);
};
 
 
class WelcomePage : public QWizardPage
{
    Q_OBJECT
public:
    explicit WelcomePage(QWidget *parent = 0);
private:
    QLabel *intro_label_1;
    QLabel *intro_label_2;
    QVBoxLayout *vbox_layout;
    QGridLayout *grid_layout;
    QLabel *email_label;
    QLineEdit *email_edit;
    QRegExpValidator *email_validator;
    QLabel *password_label;
    QLineEdit *password_edit;
    QPushButton *login;
    QLabel *register_label;
};

class AppWizard : public QWizard
{
    Q_OBJECT
public:
    explicit AppWizard(QWidget *parent = 0);
};


class WelcomePage : public QWizardPage
{
    Q_OBJECT
public:
    explicit WelcomePage(QWidget *parent = 0);
private:
    QLabel *intro_label_1;
    QLabel *intro_label_2;
    QVBoxLayout *vbox_layout;
    QGridLayout *grid_layout;
    QLabel *email_label;
    QLineEdit *email_edit;
    QRegExpValidator *email_validator;
    QLabel *password_label;
    QLineEdit *password_edit;
    QPushButton *login;
    QLabel *register_label;
};

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WelcomePage::WelcomePage(QWidget *parent) :
    QWizardPage(parent)
{
//    QTextCodec::setCodecForCStrings(QTextCodec::codecForName("UTF-8"));
    setTitle("There is title");
    setButtonText(QWizard::NextButton, "Another name");
    setButtonText(QWizard::CancelButton, "Another cancel");
 
    intro_label_1 = new QLabel("Welcome to software");
    intro_label_2 = new QLabel("ółćłćłźźłżżźćźżłźżć.");
    email_label = new QLabel("ółłłąął");
    email_edit = new QLineEdit(this);
 
    password_label = new QLabel("ddsdfdsffds");
    password_edit = new QLineEdit(this);
    password_edit->setEchoMode(QLineEdit::Password);
    login = new QPushButton();
    login->setText("dsfsfsfsfdsf");
    login->setMaximumWidth(100);
    register_label = new QLabel("dsfdfsdsfdsff");
 
    grid_layout = new QGridLayout(this);
    grid_layout->addWidget(intro_label_1, 0, 0);
    grid_layout->addWidget(intro_label_2, 1,0);
    grid_layout->addWidget(email_label, 2, 0);
    grid_layout->addWidget(email_edit, 2, 1);
    grid_layout->addWidget(password_label, 3, 0);
    grid_layout->addWidget(password_edit, 3, 1);
    grid_layout->addWidget(login, 4, 0);
    grid_layout->addWidget(register_label, 7, 0);
}

WelcomePage::WelcomePage(QWidget *parent) :
    QWizardPage(parent)
{
//    QTextCodec::setCodecForCStrings(QTextCodec::codecForName("UTF-8"));
    setTitle("There is title");
    setButtonText(QWizard::NextButton, "Another name");
    setButtonText(QWizard::CancelButton, "Another cancel");

    intro_label_1 = new QLabel("Welcome to software");
    intro_label_2 = new QLabel("ółćłćłźźłżżźćźżłźżć.");
    email_label = new QLabel("ółłłąął");
    email_edit = new QLineEdit(this);

    password_label = new QLabel("ddsdfdsffds");
    password_edit = new QLineEdit(this);
    password_edit->setEchoMode(QLineEdit::Password);
    login = new QPushButton();
    login->setText("dsfsfsfsfdsf");
    login->setMaximumWidth(100);
    register_label = new QLabel("dsfdfsdsfdsff");

    grid_layout = new QGridLayout(this);
    grid_layout->addWidget(intro_label_1, 0, 0);
    grid_layout->addWidget(intro_label_2, 1,0);
    grid_layout->addWidget(email_label, 2, 0);
    grid_layout->addWidget(email_edit, 2, 1);
    grid_layout->addWidget(password_label, 3, 0);
    grid_layout->addWidget(password_edit, 3, 1);
    grid_layout->addWidget(login, 4, 0);
    grid_layout->addWidget(register_label, 7, 0);
}

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However,the encodings fails. I tried to fix this using:

// QTextCodec::setCodecForCStrings(QTextCodec::codecForName("UTF-8"));

// QTextCodec::setCodecForCStrings(QTextCodec::codecForName("UTF-8"));

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

Thank you for you attention,

[wysota]

QString::fromUtf8()

[newb_developer]

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?

[wysota]

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.

[newb_developer]

I'll try to use translate file and it seems to be encoding error. Thank you.