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KIO

kfilemetapreview.h

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00001 /*
00002  * This file is part of the KDE project.
00003  * Copyright (C) 2003 Carsten Pfeiffer <pfeiffer@kde.org>
00004  *
00005  * You can Freely distribute this program under the GNU Library General Public
00006  * License. See the file "COPYING" for the exact licensing terms.
00007  */
00008 
00009 #ifndef KFILEMETAPREVIEW_H
00010 #define KFILEMETAPREVIEW_H
00011 
00012 #include <QHash>
00013 #include <QStackedWidget>
00014 #include <kpreviewwidgetbase.h>
00015 #include <kurl.h>
00016 #include <kmimetype.h>
00017 
00018 class KIO_EXPORT KFileMetaPreview : public KPreviewWidgetBase
00019 {
00020     Q_OBJECT
00021 
00022 public:
00023     KFileMetaPreview(QWidget *parent);
00024     ~KFileMetaPreview();
00025 
00026     virtual void addPreviewProvider( const QString& mimeType,
00027                                      KPreviewWidgetBase *provider );
00028     virtual void clearPreviewProviders();
00029 
00030 public Q_SLOTS:
00031     virtual void showPreview(const KUrl &url);
00032     virtual void clearPreview();
00033 
00034 protected:
00035     virtual KPreviewWidgetBase *previewProviderFor( const QString& mimeType );
00036 
00037 private:
00038     void initPreviewProviders();
00039     KPreviewWidgetBase* findExistingProvider(const QString& mimeType, const KMimeType::Ptr& mimeInfo) const;
00040 
00041     QStackedWidget *m_stack;
00042     QHash<QString,KPreviewWidgetBase*> m_previewProviders;
00043     bool haveAudioPreview;
00044 
00045     // may return 0L
00046     static KPreviewWidgetBase * createAudioPreview( QWidget *parent );
00047     static bool s_tryAudioPreview;
00048 
00049 private:
00050     class KFileMetaPreviewPrivate;
00051     KFileMetaPreviewPrivate *d;
00052 };
00053 
00054 #endif // KFILEMETAPREVIEW_H

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