/***************************************************************************
                   krviewfactory.h
                 -------------------
copyright            : (C) 2000-2008 by Csaba Karai
e-mail               : krusader@users.sourceforge.net
web site             : http://krusader.sourceforge.net
---------------------------------------------------------------------------
Description
***************************************************************************

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                                         H e a d e r    F i l e

***************************************************************************
*                                                                         *
*   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.                                   *
*                                                                         *
***************************************************************************/

#ifndef KRVIEWFACTORY_H
#define KRVIEWFACTORY_H

#include <QtCore/QList>
#include <QtCore/QString>
#include <QtGui/QKeySequence>
#include <QtGui/QWidget>

class KrView;
class KConfig;

class KrViewInstance
{
    friend class KrView;
public:

    KrViewInstance(int id, QString name, QString desc, QString icon, QKeySequence shortcut);
    virtual ~KrViewInstance() {}

    inline int                     id()                    {
        return m_id;
    }
    inline QString                 name()                  {
        return m_name;
    }
    inline QString                 description()           {
        return m_description;
    }
    inline QString                 icon()                  {
        return m_icon;
    }
    inline QKeySequence            shortcut()              {
        return m_shortcut;
    }

    virtual KrView *create(QWidget *w, KConfig *cfg) = 0;

protected:
    int                            m_id;
    QString                        m_name;
    QString                        m_description;
    QString                        m_icon;
    QKeySequence                   m_shortcut;
    QList<KrView*>                 m_objects;
};


template< typename T >
class KrViewInstanceImpl: public KrViewInstance
{
public:
    KrViewInstanceImpl(int id, QString name, QString desc, QString icon, QKeySequence shortcut) :
        KrViewInstance(id, name, desc, icon, shortcut) {}

    virtual KrView *create(QWidget *w, KConfig *cfg) {
        return new T(w, *this, cfg);
    }
};

class KrViewFactory
{
    friend class KrViewInstance;
public:
    static KrView *                createView(int id, QWidget * widget, KConfig *cfg);
    static KrViewInstance *        viewInstance(int id);
    static const QList<KrViewInstance*>& registeredViews() {
        return self().m_registeredViews;
    }
    static int                     defaultViewId()         {
        return self().m_defaultViewId;
    }

private:
    KrViewFactory();

    static KrViewFactory &         self();
    static void                    init();
    static void                    registerView(KrViewInstance *);

    QList<KrViewInstance *>        m_registeredViews;
    int                            m_defaultViewId;
};

#endif /* __KRVIEWFACTORY_H__ */
