akonadi
asyncselectionhandler.cpp
00001 /* 00002 Copyright (c) 2009 Tobias Koenig <tokoe@kde.org> 00003 00004 This library is free software; you can redistribute it and/or modify it 00005 under the terms of the GNU Library General Public License as published by 00006 the Free Software Foundation; either version 2 of the License, or (at your 00007 option) any later version. 00008 00009 This library is distributed in the hope that it will be useful, but WITHOUT 00010 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 00011 FITNESS FOR A PARTICULAR PURPOSE. See the GNU Library General Public 00012 License for more details. 00013 00014 You should have received a copy of the GNU Library General Public License 00015 along with this library; see the file COPYING.LIB. If not, write to the 00016 Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 00017 02110-1301, USA. 00018 */ 00019 00020 #include "asyncselectionhandler_p.h" 00021 00022 #include <akonadi/entitytreemodel.h> 00023 00024 using namespace Akonadi; 00025 00026 AsyncSelectionHandler::AsyncSelectionHandler( QAbstractItemModel *model, QObject *parent ) 00027 : QObject( parent ), mModel( model ) 00028 { 00029 Q_ASSERT( mModel ); 00030 00031 connect( mModel, SIGNAL(rowsInserted(QModelIndex,int,int)), 00032 this, SLOT(rowsInserted(QModelIndex,int,int)) ); 00033 } 00034 00035 AsyncSelectionHandler::~AsyncSelectionHandler() 00036 { 00037 } 00038 00039 bool AsyncSelectionHandler::scanSubTree( const QModelIndex &index, bool searchForItem ) 00040 { 00041 if ( searchForItem ) { 00042 const Item::Id id = index.data( EntityTreeModel::ItemIdRole ).toLongLong(); 00043 00044 if ( mItem.id() == id ) { 00045 emit itemAvailable( index ); 00046 return true; 00047 } 00048 } else { 00049 const Collection::Id id = index.data( EntityTreeModel::CollectionIdRole ).toLongLong(); 00050 00051 if ( mCollection.id() == id ) { 00052 emit collectionAvailable( index ); 00053 return true; 00054 } 00055 } 00056 00057 for ( int row = 0; row < mModel->rowCount( index ); ++row ) { 00058 const QModelIndex childIndex = mModel->index( row, 0, index ); 00059 if ( scanSubTree( childIndex, searchForItem ) ) 00060 return true; 00061 } 00062 00063 return false; 00064 } 00065 00066 void AsyncSelectionHandler::waitForCollection( const Collection &collection ) 00067 { 00068 mCollection = collection; 00069 00070 scanSubTree( QModelIndex(), false ); 00071 } 00072 00073 void AsyncSelectionHandler::waitForItem( const Item &item ) 00074 { 00075 mItem = item; 00076 00077 scanSubTree( QModelIndex(), true ); 00078 } 00079 00080 void AsyncSelectionHandler::rowsInserted( const QModelIndex &parent, int start, int end ) 00081 { 00082 for ( int i = start; i <= end; ++i ) { 00083 scanSubTree( mModel->index( i, 0, parent ), false ); 00084 scanSubTree( mModel->index( i, 0, parent ), true ); 00085 } 00086 } 00087 00088 #include "asyncselectionhandler_p.moc"
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Documentation copyright © 1996-2012 The KDE developers.
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Documentation copyright © 1996-2012 The KDE developers.
Generated on Mon Aug 27 2012 22:09:20 by doxygen 1.7.5 written by Dimitri van Heesch, © 1997-2006
KDE's Doxygen guidelines are available online.