将spinbox重写虚函数，支持16进制微调框

来源：互联网发布：国家网络安全法文件编辑：程序博客网时间：2024/06/08 09:29

//head

#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

//cpp

#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();

偶尔翻着看看

0 0