dateoption.h

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/* ============================================================
 *
 * This file is a part of digiKam project
 * https://www.digikam.org
 *
 * Date        : 2009-08-08
 * Description : an option to provide date information to the parser
 *
 * Copyright (C) 2009-2012 by Andi Clemens <andi dot clemens at gmail dot com>
 *
 * This program is free software; you can redistribute it
 * and/or modify it under the terms of the GNU General
 * Public License as published by the Free Software Foundation;
 * either version 2, or (at your option)
 * any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * ============================================================ */
 
#ifndef DIGIKAM_DATE_OPTION_H
#define DIGIKAM_DATE_OPTION_H
 
// Qt includes
 
#include <QDialog>
#include <QObject>
#include <QString>
#include <QVariant>
 
// Local includes
 
#include "option.h"
#include "ruledialog.h"
 
namespace Ui
{
class DateOptionDialogWidget;
}
 
namespace Digikam
{
 
class DateFormat
{
public:
 
    enum Type
    {
        Standard = 0,
        ISO,
        FullText,
        UnixTimeStamp,
        Custom
    };
 
public:
 
    typedef QPair<QString, QVariant>    DateFormatDescriptor;
    typedef QList<DateFormatDescriptor> DateFormatMap;
 
public:
 
    explicit DateFormat();
    ~DateFormat() {};
 
    Type     type(const QString& identifier);
 
    QString  identifier(Type type);
 
    QVariant format(Type type);
    QVariant format(const QString& identifier);
 
    DateFormatMap& map()
    {
        return m_map;
    };
 
private:
 
    DateFormat(const DateFormat&)            = delete;
    DateFormat& operator=(const DateFormat&) = delete;
 
private:
 
    DateFormatMap m_map;
};
 
// --------------------------------------------------------
 
class DateOptionDialog : public RuleDialog
{
    Q_OBJECT
 
public:
 
    enum DateSource
    {
        FromImage = 0,
        CurrentDateTime,
        FixedDateTime
    };
 
public:
 
    explicit DateOptionDialog(Rule* parent);
    ~DateOptionDialog() override;
 
    Ui::DateOptionDialogWidget* const ui;
 
    DateSource dateSource();
 
private Q_SLOTS:
 
    void slotDateSourceChanged(int);
    void slotDateFormatChanged(int);
    void slotCustomFormatChanged(const QString&);
 
private:
 
    // Disable
    explicit DateOptionDialog(QWidget*) = delete;
    DateOptionDialog(const DateOptionDialog&);
    DateOptionDialog& operator=(const DateOptionDialog&);
 
    QString formattedDateTime(const QDateTime& date);
    void    updateExampleLabel();
};
 
// --------------------------------------------------------
 
class DateOption : public Option
{
    Q_OBJECT
 
public:
 
    explicit DateOption();
    ~DateOption()                                   override = default;
 
protected:
 
    QString parseOperation(ParseSettings& settings, const QRegularExpressionMatch &match) override;
 
private Q_SLOTS:
 
    void slotTokenTriggered(const QString& token)   override;
 
private:
 
    // Disable
    explicit DateOption(QObject*)            = delete;
    DateOption(const DateOption&)            = delete;
    DateOption& operator=(const DateOption&) = delete;
};
 
} // namespace Digikam
 
#endif // DIGIKAM_DATE_OPTION_H