/*
 *  collectionattribute.h  -  Akonadi attribute holding Collection characteristics
 *  This file is part of kalarmcal library, which provides access to KAlarm
 *  calendar data.
 *  Copyright © 2010-2011 by David Jarvie <djarvie@kde.org>
 *
 *  This library is free software; you can redistribute it and/or modify
 *  it under the terms of the GNU Library General Public License as published
 *  by the Free Software Foundation; either version 2 of the License, or (at
 *  your option) any later version.
 *
 *  This library 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 Library General Public
 *  License for more details.
 *
 *  You should have received a copy of the GNU Library General Public License
 *  along with this library; see the file COPYING.LIB.  If not, write to the
 *  Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
 *  MA 02110-1301, USA.
 */

#ifndef KALARM_COLLECTION_ATTRIBUTE_H
#define KALARM_COLLECTION_ATTRIBUTE_H

#include "kalarmcal_export.h"

#include "kacalendar.h"

#include <akonadi/attribute.h>

#include <QtGui/QColor>

namespace KAlarmCal
{

/**
 * @short An Attribute for a KAlarm Collection containing various status information.
 *
 * This class represents an Akonadi attribute of a KAlarm Collection. It contains
 * information on the enabled status, the alarm types allowed in the resource,
 * which alarm types the resource is the standard Collection for, etc.
 *
 * The attribute is maintained by client applications.
 *
 * @see CompatibilityAttribute
 *
 * @author David Jarvie <djarvie@kde.org>
 */

class KALARMCAL_EXPORT CollectionAttribute : public Akonadi::Attribute
{
    public:
        CollectionAttribute();

        /** Copy constructor. */
        CollectionAttribute(const CollectionAttribute& other);

        /** Assignment operator. */
        CollectionAttribute& operator=(const CollectionAttribute& other);

        virtual ~CollectionAttribute();

        /** Return whether the collection is enabled for a specified alarm type
         *  (active, archived, template or displaying).
         *  @param type  alarm type to check for.
         */
        bool isEnabled(CalEvent::Type type) const;

        /** Return which alarm types (active, archived, template or displaying)
         *  the collection is enabled for. */
        CalEvent::Types enabled() const;

        /** Set the enabled/disabled state of the collection and its alarms,
         *  for a specified alarm type (active, archived, template or
         *  displaying). The enabled/disabled state for other alarm types is
         *  not affected.
         *  The alarms of that type in a disabled collection are ignored, and
         *  not displayed in the alarm list. The standard status for that type
         *  for a disabled collection is automatically cleared.
         *  @param type     alarm type
         *  @param enabled  true to set enabled, false to set disabled.
         */
        void setEnabled(CalEvent::Type type, bool enabled);

        /** Set which alarm types (active, archived, template or displaying)
         *  the collection is enabled for.
         *  @param types  alarm types
         */
        void setEnabled(CalEvent::Types types);

        /** Return whether the collection is the standard collection for a specified
         *  alarm type (active, archived, template or displaying).
         *  @param type  alarm type
         */
        bool isStandard(CalEvent::Type type) const;

        /** Set or clear the collection as the standard collection for a specified
         *  alarm type (active, archived, template or displaying).
         *  @param type      alarm type
         *  @param standard  true to set as standard, false to clear standard status.
         */
        void setStandard(CalEvent::Type, bool standard);

        /** Return which alarm types (active, archived, template or displaying)
         *  the collection is standard for.
         *  @return alarm types.
         */
        CalEvent::Types standard() const;

        /** Set which alarm types (active, archived, template or displaying)
         *  the collection is the standard collection for.
         *  @param types  alarm types.
         */
        void setStandard(CalEvent::Types types);

        /** Return the background color to display this collection and its alarms,
         *  or invalid color if none is set.
         */
        QColor backgroundColor() const;

        /** Set the background color for this collection and its alarms.
         *  @param c  background color
         */
        void setBackgroundColor(const QColor& c);

        /** Return whether the user has chosen to keep the old calendar storage
         *  format, i.e. not update to current KAlarm format.
         */
        bool keepFormat() const;

        /** Set whether to keep the old calendar storage format unchanged.
         *  @param keep  true to keep format unchanged, false to allow changes.
         */
        void setKeepFormat(bool keep);

        /** Reimplemented from Attribute */
        virtual QByteArray type() const;
        /** Reimplemented from Attribute */
        virtual CollectionAttribute* clone() const;
        /** Reimplemented from Attribute */
        virtual QByteArray serialized() const;
        /** Reimplemented from Attribute */
        virtual void deserialize(const QByteArray& data);

        /** Return the attribute name. */
        static QByteArray name();

    private:
        //@cond PRIVATE
        class Private;
        Private* const d;
        //@endcond
};

} // namespace KAlarmCal

#endif // KALARM_COLLECTION_ATTRIBUTE_H

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