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kfilemetapreview.h
1 /*
2  * This file is part of the KDE project.
3  * Copyright (C) 2003 Carsten Pfeiffer <pfeiffer@kde.org>
4  *
5  * You can Freely distribute this program under the GNU Library General Public
6  * License. See the file "COPYING" for the exact licensing terms.
7  */
8 
9 #ifndef KFILEMETAPREVIEW_H
10 #define KFILEMETAPREVIEW_H
11 
12 #include <tqdict.h>
13 #include <tqwidgetstack.h>
14 
15 #include <kpreviewwidgetbase.h>
16 #include <kurl.h>
17 
18 class KIO_EXPORT KFileMetaPreview : public KPreviewWidgetBase
19 {
20  Q_OBJECT
21 
22 public:
23  KFileMetaPreview(TQWidget *parent, const char *name = 0);
24  ~KFileMetaPreview();
25 
26  virtual void addPreviewProvider( const TQString& mimeType,
27  KPreviewWidgetBase *provider );
28  virtual void clearPreviewProviders();
29 
30 public slots:
31  virtual void showPreview(const KURL &url);
32  virtual void clearPreview();
33 
34 protected:
35  virtual KPreviewWidgetBase *previewProviderFor( const TQString& mimeType );
36 
37 protected:
38  virtual void virtual_hook( int id, void* data );
39 
40 private:
41  void initPreviewProviders();
42 
43  TQWidgetStack *m_stack;
44  TQDict<KPreviewWidgetBase> m_previewProviders;
45  bool haveAudioPreview;
46 
47  // may return 0L
48  static KPreviewWidgetBase * createAudioPreview( TQWidget *parent );
49  static bool s_tryAudioPreview;
50 
51 private:
52  class KFileMetaPreviewPrivate;
53  KFileMetaPreviewPrivate *d;
54 };
55 
56 #endif // KFILEMETAPREVIEW_H

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