/***************************************************************************
                   krpreviews.h
                 -------------------
copyright            : (C) 2009 by Jan Lepper
e-mail               : krusader@users.sourceforge.net
web site             : http://krusader.sourceforge.net
---------------------------------------------------------------------------
Description
***************************************************************************

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***************************************************************************
*                                                                         *
*   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 KRPREVIEWS_H
#define KRPREVIEWS_H

// QtCore
#include <QList>
#include <QHash>
// QtGui
#include <QPixmap>
#include <QColor>

class KJob;
class KrView;
class KrViewItem;
class KrPreviewJob;
class FileItem;

class KrPreviews: public QObject
{
friend class KrPreviewJob;
    Q_OBJECT
public:
    explicit KrPreviews(KrView *view);
    ~KrPreviews();

    bool getPreview(const FileItem* file, QPixmap &pixmap, bool active);
    void updatePreview(KrViewItem *item);
    void deletePreview(KrViewItem *item);
    //updates all items for which no preview has been loaded yet
    void update();
    void clear();

protected slots:
    void slotRefreshColors();
    void slotJobResult(KJob *job);

protected:
    void addPreview(const FileItem *file, const QPixmap &preview);
    void removePreview(const FileItem* file);

    KrPreviewJob *_job;
    bool _dim;
    QColor _dimColor;
    int _dimFactor;
    QHash<const FileItem*, QPixmap> _previews;
    QHash<const FileItem*, QPixmap> _previewsInactive;
    KrView *_view;
};

#endif // __krpreviews__
