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Code Block
TEMPLATE      = app
HEADERS       = hexspinbox.h
SOURCES       = hexspinbox.cpp \
                main.cpp

fff

Code Block

#ifndef HEXSPINBOX_H
#define HEXSPINBOX_H

#include <QSpinBox>

class QRegExpValidator;

class HexSpinBox : public QSpinBox
{
    Q_OBJECT

public:
    HexSpinBox(QWidget *parent = 0);

protected:
    QValidator::State validate(QString &text, int &pos) const;
    int valueFromText(const QString &text) const;
    QString textFromValue(int value) const;

private:
    QRegExpValidator *validator;
};

#endif
Code Block
#include <QtGui>

#include "hexspinbox.h"

HexSpinBox::HexSpinBox(QWidget *parent)
    : QSpinBox(parent)
{
    setRange(0, 255);
    validator = new QRegExpValidator(QRegExp("[0-9A-Fa-f]{1,8}"), this);
}

QValidator::State HexSpinBox::validate(QString &text, int &pos) const
{
    return validator->validate(text, pos);
}

int HexSpinBox::valueFromText(const QString &text) const
{
    bool ok;
    return text.toInt(&ok, 16);
}

QString HexSpinBox::textFromValue(int value) const
{
    return QString::number(value, 16).toUpper();
}
Code Block


#include <QApplication>
#include <QHBoxLayout>

#include "hexspinbox.h"

int main(int argc, char *argv[])
{
    QApplication app(argc, argv);
    HexSpinBox spinBox;
    spinBox.setWindowTitle(QObject::tr("Hex Spin Box"));
    spinBox.show();
    return app.exec();
}