/****************************************************************************
**
** Copyright (C) 2013 Digia Plc and/or its subsidiary(-ies).
** Contact: http://www.qt-project.org/legal
**
** This file is part of Qt Creator.
**
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and Digia.  For licensing terms and
** conditions see http://qt.digia.com/licensing.  For further information
** use the contact form at http://qt.digia.com/contact-us.
**
** GNU Lesser General Public License Usage
** Alternatively, this file may be used under the terms of the GNU Lesser
** General Public License version 2.1 as published by the Free Software
** Foundation and appearing in the file LICENSE.LGPL included in the
** packaging of this file.  Please review the following information to
** ensure the GNU Lesser General Public License version 2.1 requirements
** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** In addition, as a special exception, Digia gives you certain additional
** rights.  These rights are described in the Digia Qt LGPL Exception
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
**
****************************************************************************/

#include "ipaddresslineedit.h"

#include <QRegExpValidator>

/*!
  \class Utils::IpAddressLineEdit

  \brief The IpAddressLineEdit class is a QLineEdit widget that validates the
  IP address inserted.

  The valid address example is 192.168.1.12 or 192.168.1.12:8080.
*/

namespace Utils {

// ------------------ IpAddressLineEditPrivate

class IpAddressLineEditPrivate
{
public:
    IpAddressLineEditPrivate();

    QValidator *m_ipAddressValidator;
    QColor m_validColor;
};

IpAddressLineEditPrivate::IpAddressLineEditPrivate()
{
}

IpAddressLineEdit::IpAddressLineEdit(QWidget* parent) :
    BaseValidatingLineEdit(parent),
    d(new IpAddressLineEditPrivate())
{
    const char ipAddressRegExpPatternC[] = "^\\b(25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)\\."
            "(25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)\\."
            "(25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)\\."
            "(25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)\\b"
            "((:)(6553[0-5]|655[0-2]\\d|65[0-4]\\d\\d|6[0-4]\\d{3}|[1-5]\\d{4}|[1-9]\\d{0,3}|0))?$";

    QRegExp ipAddressRegExp = QRegExp(QLatin1String(ipAddressRegExpPatternC));
    d->m_ipAddressValidator = new QRegExpValidator(ipAddressRegExp, this);
}

IpAddressLineEdit::~IpAddressLineEdit()
{
    delete d;
}

bool IpAddressLineEdit::validate(const QString &value, QString *errorMessage) const
{
    QString copy = value;
    int offset = 0;
    bool isValid = d->m_ipAddressValidator->validate(copy, offset) == QValidator::Acceptable;
    if (!isValid) {
        *errorMessage =  tr("The IP address is not valid.");
        return false;
    }
    return true;
}

void IpAddressLineEdit::slotChanged(const QString &t)
{
    Utils::BaseValidatingLineEdit::slotChanged(t);
    if (isValid())
        emit validAddressChanged(t);
    else
        emit invalidAddressChanged();
}

} // namespace Utils