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previewjob.h
1 /* This file is part of the KDE libraries
2  Copyright (C) 2000 David Faure <faure@kde.org>
3  2000 Carsten Pfeiffer <pfeiffer@kde.org>
4  2001 Malte Starostik <malte.starostik@t-online.de>
5 
6  This library is free software; you can redistribute it and/or
7  modify it under the terms of the GNU Library General Public
8  License as published by the Free Software Foundation; either
9  version 2 of the License, or (at your option) any later version.
10 
11  This library is distributed in the hope that it will be useful,
12  but WITHOUT ANY WARRANTY; without even the implied warranty of
13  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14  Library General Public License for more details.
15 
16  You should have received a copy of the GNU Library General Public License
17  along with this library; see the file COPYING.LIB. If not, write to
18  the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
19  Boston, MA 02110-1301, USA.
20 */
21 
22 #ifndef __tdeio_previewjob_h__
23 #define __tdeio_previewjob_h__
24 
25 #include <tdefileitem.h>
26 #include <tdeio/job.h>
27 
28 class TQPixmap;
29 
30 namespace TDEIO {
35  class TDEIO_EXPORT PreviewJob : public TDEIO::Job
36  {
37  Q_OBJECT
38  public:
55  PreviewJob( const KFileItemList &items, int width, int height,
56  int iconSize, int iconAlpha, bool scale, bool save,
57  const TQStringList *enabledPlugins, bool deleteItems = false );
58  virtual ~PreviewJob();
59 
66  void removeItem( const KFileItem *item );
67 
74  void setIgnoreMaximumSize(bool ignoreSize = true);
75 
82  static TQStringList availablePlugins();
83 
89  static TQStringList supportedMimeTypes();
90 
94  virtual void kill( bool quietly = true );
95 
96  signals:
103  void gotPreview( const KFileItem *item, const TQPixmap &preview );
110  void failed( const KFileItem *item );
111 
112  protected:
113  void getOrCreateThumbnail();
114  bool statResultThumbnail();
115  void createThumbnail( TQString );
116 
117  protected slots:
118  virtual void slotResult( TDEIO::Job *job );
119 
120  private slots:
121  void startPreview();
122  void slotThumbData(TDEIO::Job *, const TQByteArray &);
123 
124  private:
125  void determineNextFile();
126  void emitPreview(const TQImage &thumb);
127  void emitFailed(const KFileItem *item = 0);
128 
129  protected:
130  virtual void virtual_hook( int id, void* data );
131  private:
132  struct PreviewJobPrivate *d;
133  };
134 
155  TDEIO_EXPORT PreviewJob *filePreview( const KFileItemList &items, int width, int height = 0, int iconSize = 0, int iconAlpha = 70, bool scale = true, bool save = true, const TQStringList *enabledPlugins = 0 );
156 
177  TDEIO_EXPORT PreviewJob *filePreview( const KURL::List &items, int width, int height = 0, int iconSize = 0, int iconAlpha = 70, bool scale = true, bool save = true, const TQStringList *enabledPlugins = 0 );
178 }
179 
180 #endif
TDEIO
A namespace for TDEIO globals.
Definition: authinfo.h:29
TDEIO::PreviewJob
TDEIO Job to get a thumbnail picture.
Definition: previewjob.h:35
TDEIO::Job
The base class for all jobs.
Definition: jobclasses.h:67
TDEIO::filePreview
TDEIO_EXPORT PreviewJob * filePreview(const KFileItemList &items, int width, int height=0, int iconSize=0, int iconAlpha=70, bool scale=true, bool save=true, const TQStringList *enabledPlugins=0)
Creates a PreviewJob to generate or retrieve a preview image for the given URL.
Definition: previewjob.cpp:574
KFileItem
A KFileItem is a generic class to handle a file, local or remote.
Definition: tdefileitem.h:41

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