How could I make the QLineEdit UpperCase without using InputMask?

[uygar]

How could I make the QLineEdit UpperCase without using InputMask.
I don't want to use it because when I use it inputMask like ">AAAAAAA" the curser doesn't starts begenning of the line. It start where ever I click in the line.

I need to delegate the lines by using "promote to" with QtDesigner.

Can you please write an example delegate class for QLineEdit

I did it for line in a QTableWidget but not an indepandent QLineEdit
It is Like:


QWidget *AlternatifDelegate::createEditor(QWidget *parent, const QStyleOptionViewItem &option, const QModelIndex &index) const
{
QLocale::setDefault(QLocale(QLocale::Turkish, QLocale::Turkey));
QLineEdit *editor = new QLineEdit(parent);
QFont font;
font.setCapitalization(QFont::AllUppercase);
editor->setFont(font);
return editor;
}
void AlternatifDelegate::setEditorData(QWidget *editor, const QModelIndex &index) const
{
QLocale turkish(QLocale::Turkish);
QString value = index.model()->data(index, Qt::DisplayRole).toString();
QLineEdit *qline = static_cast<QLineEdit*>(editor);
QFont font;
font.setCapitalization(QFont::AllUppercase);
editor->setFont(font);
qline->setText(value);
}
void AlternatifDelegate::setModelData(QWidget *editor, QAbstractItemModel *model,
const QModelIndex &index) const
{
QLocale turkish(QLocale::Turkish);
QLineEdit *qline = static_cast<QLineEdit*>(editor);
QFont font;
font.setCapitalization(QFont::AllUppercase);
editor->setFont(font);
QString value = qline->text();
model->setData(index, value.toUpper());
}

[spirit]

a little bit tricky, but works fine :cool:


...
connect(le, SIGNAL(textEdited(const QString &)), SLOT(toUpper(const QString &)));
...
void Test::toUpper(const QString &text)
{
QLineEdit *le = qobject_cast<QLineEdit *>(sender());
if (!le)
return;
le->setText(text.toUpper());
}

[caduel]

you can:
* set a QValidator that converts the letters to upper case
* intercept key events and convert to key
* connect to textChanged and change the text again (drawbacks when editing not at the end...)

I suggest you set a QValidator

[uygar]

I found that codes


pqUpcaseValidator::pqUpcaseValidator( QWidget* Parent, const char* Name )
: QValidator( Parent, Name )
{}

QValidator::State pqUpcaseValidator::validate( QString& Text , int& Pos ) const
{
Text = Text.upper();
return Acceptable;
}

What kind of document I should write?
is that currect?


#ifndef MYUPPERLINE_H
#define MYUPPERLINE_H
#include <QtGui>
class MyUpperLine2 : public QLineEdit
{
public:
MyUpperLine2(QWidget* parent = 0):QLineEdit(parent) { }

pqUpcaseValidator::pqUpcaseValidator( QWidget* Parent, const char* Name )
: QValidator( Parent, Name )
{}

QValidator::State pqUpcaseValidator::validate( QString& Text , int& Pos ) const
{
Text = Text.upper();
return Acceptable;
}
};
and is it enough to promote it by designer?

[talk2amulya]

well, once u have written the validator, u have to call setValidator() for QLineEdit..that should do it. And yes, ur class would be good enough for promoting once u have set the validator for QLineEdit

[uygar]

a little bit tricky, but works fine :cool:


...
connect(le, SIGNAL(textEdited(const QString &)), SLOT(toUpper(const QString &)));
...
void Test::toUpper(const QString &text)
{
QLineEdit *le = qobject_cast<QLineEdit *>(sender());
if (!le)
return;
le->setText(text.toUpper());
}


I can't delegate but this solition is OK for now. Thank you all.:D

[uygar]

I got a problem about one of Capital letters.
In Turkish (utf-8, Latin5), alfabet is a litle bit differents from English alfabet.
we have lower case "i" and it's upper case is" İ".
At the same time ;
we have lower case "ı" and upper case "I".

When caps lock off if I hit "ı" or "i" it returns "I" that is wrong the correct is if I hit "i" it must return "İ".:confused:
When caps lock on, it work correct.

I tried: (but nothing chaged)

void formCari::toUpper(const QString &text)
{
QLocale turkish(QLocale::Turkish);
QLineEdit *SSSSSSS = qobject_cast<QLineEdit *>(sender());
if (!SSSSSSS)
return;
SSSSSSS->setText(text.toUpper());
}

P.S. if you can not read the letters that I write, I can explain. the upper case of "i" is "I" with top point as the lower one. And all so, lower case of "I" is like "i" but with out point.

[caduel]

you don't seem to actually use that QLocale you created...?

[uygar]

you don't seem to actually use that QLocale you created...?

but how I?

[caduel]

Probably with QLocale::setDefault()
It would probably be good to set that at startup and not change this (global) setting too often. I am not sure if it will really affect the workings of toUpper. But it is worth a try.

[uygar]

Actually I did it but not changed