ImageManager/VideoManager.h

   1 /* Copyright (C) 2003-2006 Jesper K. Pedersen <blackie@kde.org>
   2
   3    This program is free software; you can redistribute it and/or
   4    modify it under the terms of the GNU General Public
   5    License as published by the Free Software Foundation; either
   6    version 2 of the License, or (at your option) any later version.
   7
   8    This program is distributed in the hope that it will be useful,
   9    but WITHOUT ANY WARRANTY; without even the implied warranty of
  10    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  11    General Public License for more details.
  12
  13    You should have received a copy of the GNU General Public License
  14    along with this program; see the file COPYING.  If not, write to
  15    the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
  16    Boston, MA 02110-1301, USA.
  17 */
  18 #ifndef VIDEOMANAGER_H
  19 #define VIDEOMANAGER_H
  20
  21 class QPixmap;
  22 class KFileItem;
  23
  24 #include <qobject.h>
  25 #include "RequestQueue.h"
  26 #include "Manager.h"
  27 #include <QEventLoop>
  28
  29 namespace ImageManager
  30 {
  31 class ImageClient;
  32 class ImageRequest;
  33
  34 class VideoManager :public QObject
  35 {
  36     Q_OBJECT
  37
  38 public:
  39     static VideoManager& instance();
  40     void request( ImageRequest* request );
  41     void stop( ImageClient*, StopAction action );
  42     bool hasVideoThumbnailSupport() const;
  43
  44 protected:
  45     void load( ImageRequest* request );
  46     void requestLoadNext();
  47
  48 protected slots:
  49     void slotGotPreview(const KFileItem&, const QPixmap& pixmap );
  50     void previewFailed();
  51
  52     void testGotPreview(const KFileItem&, const QPixmap& pixmap );
  53     void testPreviewFailed();
  54
  55 private:
  56     VideoManager();
  57     RequestQueue _pending;
  58     ImageRequest* _currentRequest;
  59     bool _hasVideoSupport;
  60     mutable QEventLoop _eventLoop;
  61 };
  62
  63 }
  64
  65 #endif /* VIDEOMANAGER_H */
  66