model.h

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/******************************************************************************
 *
 *  Copyright 2008 Szymon Tomasz Stefanek <pragma@kvirc.net>
 *
 *  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 of the License, 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.
 *
 *  You should have received a copy of the GNU General Public License
 *  along with this program; if not, write to the Free Software
 *  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
 *
 *******************************************************************************/

#ifndef __MESSAGELIST_CORE_MODEL_H__
#define __MESSAGELIST_CORE_MODEL_H__

#include <QAbstractItemModel>
#include <QList>
#include <QHash>
#include <QMultiHash>
#include <QDate>
#include <QTimer>

#include <messagelist/core/aggregation.h>
#include <messagelist/core/enums.h>
#include <messagelist/core/sortorder.h>

#include <time.h> // time_t

#include <messagelist/messagelist_export.h>

class QTime;

namespace MessageList
{

namespace Core
{

typedef long int MessageItemSetReference;

class ViewItemJob;
class Filter;
class GroupHeaderItem;
class Item;
class Manager;
class MessageItem;
class Theme;
class StorageModel;
class ModelInvariantRowMapper;
class MessageItemSetManager;
class View;
class ModelPrivate;

class MESSAGELIST_EXPORT Model : public QAbstractItemModel
{
    friend class Item;
    friend class ItemPrivate;

    Q_OBJECT
public:

    explicit Model( View *pParent );

    ~Model();

    StorageModel *storageModel() const;

    void setStorageModel( StorageModel *storageModel, PreSelectionMode preSelectionMode = PreSelectLastSelected );

    void setPreSelectionMode( PreSelectionMode preSelect );

    Item *rootItem() const;

    bool isLoading() const;

    MessageItem * messageItemByStorageRow( int row ) const;

    void setAggregation( const Aggregation * aggregation );

    void setTheme( const Theme * theme );

    void setSortOrder( const SortOrder * sortOrder );

    const SortOrder * sortOrder() const;

    void setFilter( const Filter *filter );

    MessageItemSetReference createPersistentSet( const QList< MessageItem * > &items );

    QList< MessageItem * > persistentSetCurrentMessageItemList( MessageItemSetReference ref );

    void deletePersistentSet( MessageItemSetReference ref );

    // Mandatory QAbstractItemModel interface.

    virtual int columnCount( const QModelIndex &parent = QModelIndex() ) const;
    virtual QVariant data( const QModelIndex &index, int role = Qt::DisplayRole ) const;
    virtual QVariant headerData(int section, Qt::Orientation orientation, int role) const;
    virtual QModelIndex index( int row, int column, const QModelIndex &parent = QModelIndex() ) const;
    QModelIndex index( Item *item, int column ) const;
    virtual QModelIndex parent( const QModelIndex &index ) const;
    virtual int rowCount( const QModelIndex &parent = QModelIndex() ) const;
    virtual Qt::ItemFlags flags( const QModelIndex &index ) const;

    virtual QMimeData* mimeData( const QModelIndexList& indexes ) const;

Q_SIGNALS:
    void statusMessage( const QString &message );

private:
    Q_PRIVATE_SLOT(d, void checkIfDateChanged())
    Q_PRIVATE_SLOT(d, void viewItemJobStep())
    Q_PRIVATE_SLOT(d, void slotStorageModelRowsInserted( const QModelIndex &, int, int ))
    Q_PRIVATE_SLOT(d, void slotStorageModelRowsRemoved( const QModelIndex &, int, int ))
    Q_PRIVATE_SLOT(d, void slotStorageModelDataChanged( const QModelIndex &, const QModelIndex & ))
    Q_PRIVATE_SLOT(d, void slotStorageModelHeaderDataChanged( Qt::Orientation, int, int ))
    Q_PRIVATE_SLOT(d, void slotStorageModelLayoutChanged())
    Q_PRIVATE_SLOT(d, void slotApplyFilter())

    friend class ModelPrivate;
    ModelPrivate * const d;
};

} // namespace Core

} // namespace MessageList

#endif