DataStructureBackendManager.h

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/*
    This file is part of Rocs.
    Copyright 2010  Wagner Reck <wagner.reck@gmail.com>
    Copyright 2012  Andreas Cord-Landwehr <cola@uni-paderborn.de>

    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, see <http://www.gnu.org/licenses/>.
*/

#ifndef DATASTRUCTUREBACKENDMANAGER_H
#define DATASTRUCTUREBACKENDMANAGER_H

#include <QObject>
#include "RocsCoreExport.h"
#include "CoreTypes.h"

class QLayout;
class QGraphicsItem;
class KPluginInfo;
class DataStructure;
class Document;
class Data;
class Pointer;
class DataStructureBackendManagerPrivate;
class DataStructureBackendInterface;


class ROCSLIB_EXPORT DataStructureBackendManager
    : public QObject
{
    Q_OBJECT

public:
    static DataStructureBackendManager & self();

    const QStringList backends() const;

    KPluginInfo backendInfo(DataStructureBackendInterface *plugin) const;

    DataStructureBackendInterface * backend(const QString &internalName) const;

    DataStructurePtr createDataStructure(Document *parent, const QString &pluginName=QString());

    DataStructurePtr createDataStructure(const DataStructurePtr dataStructure, Document *parent);

    DataStructureBackendInterface * activeBackend() const;

    QGraphicsItem * dataItem(DataPtr data) const;

    QGraphicsItem * pointerItem(PointerPtr pointer) const;

    QLayout * dataExtraProperties(DataPtr data, QWidget *parent) const;

    QLayout * pointerExtraProperties(PointerPtr pointer, QWidget *parent) const;

    QLayout * dataStructureExtraProperties(DataStructurePtr dataStructure, QWidget *parent) const;

public Q_SLOTS:
    void setBackend(const QString& pluginIdentifier);

Q_SIGNALS:
    void backendChanged(const QString& pluginName);

private:
    DataStructureBackendManager();

    ~DataStructureBackendManager();

    DataStructureBackendManager(const DataStructureBackendManager&);
    void operator=(const DataStructureBackendManager&);

    const QScopedPointer<DataStructureBackendManagerPrivate> d;
};

#endif