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akonadi

entityrightsfiltermodel.cpp

00001 /*
00002     Copyright (c) 2007 Bruno Virlet <bruno.virlet@gmail.com>
00003     Copyright (c) 2009 Stephen Kelly <steveire@gmail.com>
00004 
00005 
00006     This library is free software; you can redistribute it and/or modify it
00007     under the terms of the GNU Library General Public License as published by
00008     the Free Software Foundation; either version 2 of the License, or (at your
00009     option) any later version.
00010 
00011     This library is distributed in the hope that it will be useful, but WITHOUT
00012     ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
00013     FITNESS FOR A PARTICULAR PURPOSE.  See the GNU Library General Public
00014     License for more details.
00015 
00016     You should have received a copy of the GNU Library General Public License
00017     along with this library; see the file COPYING.LIB.  If not, write to the
00018     Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
00019     02110-1301, USA.
00020 */
00021 
00022 #include "entityrightsfiltermodel.h"
00023 
00024 #include "entitytreemodel.h"
00025 
00026 #include <kdebug.h>
00027 
00028 using namespace Akonadi;
00029 
00030 namespace Akonadi {
00031 
00035 class EntityRightsFilterModelPrivate
00036 {
00037   public:
00038     EntityRightsFilterModelPrivate( EntityRightsFilterModel *parent )
00039       : q_ptr( parent ), mAccessRights( Collection::AllRights )
00040     {
00041     }
00042 
00043     bool rightsMatches( const QModelIndex &index ) const
00044     {
00045       if ( mAccessRights == Collection::AllRights ||  mAccessRights == Collection::ReadOnly )
00046         return true;
00047 
00048       const Collection collection = index.data( EntityTreeModel::CollectionRole ).value<Collection>();
00049       if ( collection.isValid() ) {
00050         return (mAccessRights & collection.rights());
00051       } else {
00052         const Item item = index.data( EntityTreeModel::ItemRole ).value<Item>();
00053         if ( item.isValid() ) {
00054           const Collection collection = index.data( EntityTreeModel::ParentCollectionRole ).value<Collection>();
00055           return (mAccessRights & collection.rights());
00056         } else {
00057           return false;
00058         }
00059       }
00060     }
00061 
00062     Q_DECLARE_PUBLIC(EntityRightsFilterModel)
00063     EntityRightsFilterModel *q_ptr;
00064 
00065     Collection::Rights mAccessRights;
00066 };
00067 
00068 }
00069 
00070 EntityRightsFilterModel::EntityRightsFilterModel( QObject *parent )
00071   : KRecursiveFilterProxyModel( parent ),
00072     d_ptr( new EntityRightsFilterModelPrivate( this ) )
00073 {
00074 }
00075 
00076 EntityRightsFilterModel::~EntityRightsFilterModel()
00077 {
00078   delete d_ptr;
00079 }
00080 
00081 void EntityRightsFilterModel::setAccessRights( Collection::Rights rights )
00082 {
00083   Q_D(EntityRightsFilterModel);
00084   d->mAccessRights = rights;
00085   invalidateFilter();
00086 }
00087 
00088 Collection::Rights EntityRightsFilterModel::accessRights() const
00089 {
00090   Q_D(const EntityRightsFilterModel);
00091   return d->mAccessRights;
00092 }
00093 
00094 bool EntityRightsFilterModel::acceptRow( int sourceRow, const QModelIndex &sourceParent) const
00095 {
00096   Q_D(const EntityRightsFilterModel);
00097 
00098   const QModelIndex modelIndex = sourceModel()->index( sourceRow, 0, sourceParent );
00099 
00100   return d->rightsMatches( modelIndex );
00101 }
00102 
00103 Qt::ItemFlags EntityRightsFilterModel::flags( const QModelIndex &index ) const
00104 {
00105   Q_D(const EntityRightsFilterModel);
00106 
00107   if ( d->rightsMatches( index ) )
00108     return KRecursiveFilterProxyModel::flags( index );
00109   else
00110     return KRecursiveFilterProxyModel::flags( index ) & ~(Qt::ItemIsSelectable | Qt::ItemIsEnabled);
00111 }
00112 
00113 QModelIndexList EntityRightsFilterModel::match(const QModelIndex& start, int role, const QVariant& value, int hits, Qt::MatchFlags flags) const
00114 {
00115   if (role < Qt::UserRole)
00116     return QSortFilterProxyModel::match(start, role, value, hits, flags);
00117 
00118   QModelIndexList list;
00119   QModelIndex proxyIndex;
00120   foreach(const QModelIndex idx, sourceModel()->match(mapToSource(start), role, value, hits, flags))
00121   {
00122     proxyIndex = mapFromSource(idx);
00123     if (proxyIndex.isValid())
00124       list << proxyIndex;
00125   }
00126   return list;
00127 }
00128 
00129 #include "entityrightsfiltermodel.moc"

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