apps/dolphin/src/applyviewpropsjob.h

   1 /***************************************************************************
   2  *   Copyright (C) 2006 by Peter Penz <peter.penz@gmx.at>                  *
   3  *                                                                         *
   4  *   The code is based on kdelibs/kio/kio/directorysizejob.*               *
   5  *  (C) 2006 by David Faure <faure@kde.org>                                *
   6  *                                                                         *
   7  *   This program is free software; you can redistribute it and/or modify  *
   8  *   it under the terms of the GNU General Public License as published by  *
   9  *   the Free Software Foundation; either version 2 of the License, or     *
  10  *   (at your option) any later version.                                   *
  11  *                                                                         *
  12  *   This program is distributed in the hope that it will be useful,       *
  13  *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
  14  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
  15  *   GNU General Public License for more details.                          *
  16  *                                                                         *
  17  *   You should have received a copy of the GNU General Public License     *
  18  *   along with this program; if not, write to the                         *
  19  *   Free Software Foundation, Inc.,                                       *
  20  *   51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA            *
  21  ***************************************************************************/
  22
  23 #ifndef APPLYVIEWPROPSJOB_H
  24 #define APPLYVIEWPROPSJOB_H
  25
  26 #include <kio/job.h>
  27 #include <kfileitem.h>
  28 #include <kurl.h>
  29
  30 class ViewProperties;
  31
  32 /**
  33  * @brief Applies view properties recursively to directories.
  34  *
  35  * Usage:
  36  * \code
  37  * KJob* job = new ApplyViewPropsJob(dir, viewProps);
  38  * connect(job, SIGNAL(result(KJob*)),
  39  *          this, SLOT(slotResult(KJob*)));
  40  * \endcode
  41  *
  42  * To be able to show a progress of the operation, the following steps
  43  * are recommended:
  44  * - Use a DirectorySizeJob to count the number of directories.
  45  * - Use a timer to show the current count of directories by invoking
  46  *   DirectorySizeJob::totalSubdirs() until the result signal is emitted.
  47  * - Use the ApplyViewPropsJob.
  48  * - Use a timer to show the progress by invoking ApplyViwePropsJob::progress().
  49  *   In combination with the total directory count it is possible to show a
  50  *   progress bar now.
  51  */
  52 class ApplyViewPropsJob : public KIO::Job
  53 {
  54     Q_OBJECT
  55
  56 public:
  57     /**
  58      * @param dir       Directory where the view properties should be applied to
  59      *                  (including sub directories).
  60      * @param viewProps View properties for the directory \a dir including its
  61      *                  sub directories.
  62      */
  63     ApplyViewPropsJob(const KUrl& dir, const ViewProperties& viewProps);
  64     virtual ~ApplyViewPropsJob();
  65     int progress() const
  66     {
  67         return m_progress;
  68     }
  69
  70 private:
  71     void startNextJob(const KUrl & url);
  72
  73 private slots:
  74     virtual void slotResult(KJob* job);
  75     void slotEntries(KIO::Job*, const KIO::UDSEntryList&);
  76     void processNextItem();
  77
  78 private:
  79     ViewProperties* m_viewProps;
  80     int m_currentItem;
  81     int m_progress;
  82     KUrl m_dir;
  83 };
  84
  85 #endif