File indexing completed on 2024-07-14 03:54:04

0001 /*
0002     This file is part of the KDE project.
0003     SPDX-FileCopyrightText: 2003 Carsten Pfeiffer <pfeiffer@kde.org>
0004 
0005     SPDX-License-Identifier: LGPL-2.0-only
0006 */
0007 
0008 #ifndef KFILEMETAPREVIEW_H
0009 #define KFILEMETAPREVIEW_H
0010 
0011 #include <QHash>
0012 #include <QMimeType>
0013 #include <QStackedWidget>
0014 #include <kpreviewwidgetbase.h>
0015 
0016 // Internal, but exported for KDirOperator (kfile) and KPreviewProps (kdelibs4support)
0017 class KIOFILEWIDGETS_EXPORT KFileMetaPreview : public KPreviewWidgetBase
0018 {
0019     Q_OBJECT
0020 
0021 public:
0022     explicit KFileMetaPreview(QWidget *parent);
0023     ~KFileMetaPreview() override;
0024 
0025     virtual void addPreviewProvider(const QString &mimeType, KPreviewWidgetBase *provider);
0026     virtual void clearPreviewProviders();
0027 
0028 public Q_SLOTS:
0029     void showPreview(const QUrl &url) override;
0030     void clearPreview() override;
0031 
0032 protected:
0033     virtual KPreviewWidgetBase *previewProviderFor(const QString &mimeType);
0034 
0035 private:
0036     void initPreviewProviders();
0037     KPreviewWidgetBase *findExistingProvider(const QString &mimeType, const QMimeType &mimeInfo) const;
0038 
0039     QStackedWidget *m_stack;
0040     QHash<QString, KPreviewWidgetBase *> m_previewProviders;
0041     bool haveAudioPreview;
0042 
0043     // may return 0L
0044     static KPreviewWidgetBase *createAudioPreview(QWidget *parent);
0045     static bool s_tryAudioPreview;
0046 
0047 private:
0048     class KFileMetaPreviewPrivate;
0049     KFileMetaPreviewPrivate *d;
0050 };
0051 
0052 #endif // KFILEMETAPREVIEW_H