kworship/KwKWorshipFilter.cpp

   1 /***************************************************************************
   2  *   This file is part of KWorship.                                        *
   3  *   Copyright 2008 James Hogan <james@albanarts.com>                      *
   4  *                                                                         *
   5  *   KWorship is free software: you can redistribute it and/or modify      *
   6  *   it under the terms of the GNU General Public License as published by  *
   7  *   the Free Software Foundation, either version 2 of the License, or     *
   8  *   (at your option) any later version.                                   *
   9  *                                                                         *
  10  *   KWorship is distributed in the hope that it will be useful,           *
  11  *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
  12  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
  13  *   GNU General Public License for more details.                          *
  14  *                                                                         *
  15  *   You should have received a copy of the GNU General Public License     *
  16  *   along with KWorship.  If not, write to the Free Software Foundation,  *
  17  *   Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.   *
  18  ***************************************************************************/
  19
  20 /**
  21  * @file KwKWorshipFilter.cpp
  22  * @brief Main KWorship archive load and save filter.
  23  * @author James Hogan <james@albanarts.com>
  24  */
  25
  26 #include "KwKWorshipFilter.h"
  27 #include "KwDocument.h"
  28 #include "KwArchive.h"
  29 #include "KwPlaylistList.h"
  30
  31 #include <KUrl>
  32 #include <KMessageBox>
  33 #include <KLocale>
  34 #include <KSaveFile>
  35
  36 /*
  37  * Constructors + destructor
  38  */
  39
  40 /// Primary constructor.
  41 KwKWorshipFilter::KwKWorshipFilter()
  42 : KwLoadSaveFilter()
  43 {
  44   m_importMimeTypes += "application/x-kworship-archive";
  45   m_exportMimeTypes += "application/x-kworship-archive";
  46   m_importMimeTypes += "application/x-kworship+xml";
  47   m_exportMimeTypes += "application/x-kworship+xml";
  48 }
  49
  50 /// Destructor.
  51 KwKWorshipFilter::~KwKWorshipFilter()
  52 {
  53 }
  54
  55 /*
  56  * Main interface
  57  */
  58
  59 KwDocument* KwKWorshipFilter::load(const KUrl& url, const QString& mimeType)
  60 {
  61   /// @todo Handle non-local files
  62   if (!url.isLocalFile())
  63   {
  64     KMessageBox::error(0,
  65         i18n("Non-local loads not yet supported"),
  66         i18n("KWorship"));
  67     return 0;
  68   }
  69
  70   KwDocument* doc = new KwDocument(this, mimeType, url);
  71   if (mimeType == "application/x-kworship-archive")
  72   {
  73     // Open archive object and read it
  74     KwArchive archive(url.toLocalFile(), false);
  75     Q_ASSERT(archive.isReading());
  76
  77     KwPlaylistList* playlist = archive.extractPlaylist("0");
  78     if (0 != playlist)
  79     {
  80       doc->setPlaylist(playlist);
  81     }
  82   }
  83   else if (mimeType == "application/x-kworship+xml")
  84   {
  85     /// @todo Implement non-archived load
  86     Q_ASSERT(!"Non archived load not implemented");
  87   }
  88   else
  89   {
  90     Q_ASSERT(!"Unsupported mime type");
  91   }
  92
  93   doc->setModified(false);
  94
  95   return doc;
  96 }
  97
  98 bool KwKWorshipFilter::save(KwDocument* doc, const KUrl& url, const QString& mimeType)
  99 {
 100   /// @todo Handle non-local files
 101   if (!url.isLocalFile())
 102   {
 103     KMessageBox::error(0,
 104         i18n("Non-local loads not yet supported"),
 105         i18n("KWorship"));
 106     return false;
 107   }
 108   KSaveFile file;
 109   file.setFileName(url.toLocalFile());
 110   if (!file.open(QFile::WriteOnly))
 111   {
 112     KMessageBox::error(0,
 113         i18n("Cannot write file %1:\n%2.")
 114           .arg(file.fileName())
 115           .arg(file.errorString()),
 116         i18n("KWorship"));
 117     return false;
 118   }
 119
 120   if (mimeType == "application/x-kworship-archive")
 121   {
 122     // Open archive object and fill it
 123     KwArchive archive(&file, true);
 124     Q_ASSERT(archive.isWriting());
 125
 126     archive.addPlaylist(doc->playlist());
 127   }
 128   else if (mimeType == "application/x-kworship+xml")
 129   {
 130     /// @todo Implement non-archived save
 131     Q_ASSERT(!"Non archived save not implemented");
 132   }
 133   else
 134   {
 135     Q_ASSERT(!"Unsupported mime type");
 136   }
 137
 138   if (!file.finalize())
 139   {
 140     KMessageBox::error(0,
 141         i18n("Cannot finalize file %1:\n%2.")
 142         .arg(file.fileName())
 143         .arg(file.errorString()),
 144         i18n("KWorship"));
 145     return false;
 146   }
 147
 148   doc->setModified(false);
 149
 150   return true;
 151 }
 152
 153 /*
 154  * Virtual interface
 155  */
 156
 157 void KwKWorshipFilter::v_saveLimitations(KwDocument* doc, const QString& mimeType, Limitations* o_limitations)
 158 {
 159   /// @todo Implement KwKWorshipFilter::v_saveLimitations
 160   Q_ASSERT(false);
 161 }