1 /*

     2  * Copyright (c) 2009 Nokia Corporation and/or its subsidiary(-ies).

     3  * All rights reserved.

     4  * This component and the accompanying materials are made available

     5  * under the terms of "Eclipse Public License v1.0"

     6  * which accompanies this distribution, and is available

     7  * at the URL "http://www.eclipse.org/legal/epl-v10.html".

     8  *

     9  * Initial Contributors:

    10  * Nokia Corporation - initial contribution.

    11  * 

    12  * Contributors:

    13  *

    14  * 

    15  * Description:

    16  *     The source file of the data list model of file manager

    17  */

    18 

    19 #include "fmdatalistmodel.h"

    20 

    21 

    22 FmDataListModel::FmDataListModel( QObject *parent )

    23     : QAbstractListModel( parent )

    24 {

    25 }

    26 

    27 int FmDataListModel::rowCount( const QModelIndex &parent ) const

    28 {

    29     if (parent.isValid())

    30         return 0;

    31 

    32     return mDisplayLst.count();

    33 }

    34 

    35 QVariant FmDataListModel::data( const QModelIndex &index, int role ) const

    36 {

    37     if ( index.row() < 0 || index.row() >= mDisplayLst.size() )

    38         return QVariant();

    39 

    40     if ( role == Qt::DisplayRole || role == Qt::EditRole )

    41         return mDisplayLst.at( index.row() );

    42 

    43     if ( role == Qt::UserRole )

    44         return mUserDataLst.at( index.row() );

    45 

    46     return QVariant();

    47 }

    48 

    49 Qt::ItemFlags FmDataListModel::flags( const QModelIndex &index ) const

    50 {

    51     if ( !index.isValid() )

    52         return QAbstractItemModel::flags( index ) | Qt::ItemIsDropEnabled;

    53 

    54     return QAbstractItemModel::flags( index ) | Qt::ItemIsEditable;

    55 }

    56 

    57 bool FmDataListModel::setData( const QModelIndex &index, const QVariant &value, int role )

    58 {

    59     if ( index.row() >= 0 && index.row() < mDisplayLst.size()

    60         && ( role == Qt::EditRole || role == Qt::DisplayRole ) ){

    61         mDisplayLst.replace( index.row(), value.toString() );

    62         emit dataChanged( index, index );

    63         return true;

    64     }

    65 

    66     if ( index.row() >= 0 && index.row() < mUserDataLst.size()

    67         && ( role == Qt::UserRole ) ) {

    68         mUserDataLst.replace( index.row(), value.toString() );

    69         emit dataChanged( index, index );

    70         return true;

    71     }

    72     return false;

    73 }

    74 

    75 bool FmDataListModel::insertRows( int row, int count, const QModelIndex &parent )

    76 {

    77     if ( count < 1 || row < 0 || row > rowCount( parent ) )

    78         return false;

    79 

    80     beginInsertRows( QModelIndex(), row, row + count - 1 );

    81 

    82     for ( int r = 0; r < count; ++r )

    83     {

    84         mDisplayLst.insert( row, QString() );

    85         mUserDataLst.insert( row, QString() );

    86     }

    87 

    88     endInsertRows();

    89 

    90     return true;

    91 }

    92 

    93 bool FmDataListModel::removeRows( int row, int count, const QModelIndex &parent )

    94 {

    95     if ( count <= 0 || row < 0 || ( row + count ) > rowCount( parent ) )

    96         return false;

    97 

    98     beginRemoveRows( QModelIndex(), row, row + count - 1 );

    99 

   100     for ( int r = 0; r < count; ++r )

   101     {

   102         mDisplayLst.removeAt( row );

   103         mUserDataLst.removeAt( row );

   104     }

   105 

   106     endRemoveRows();

   107     return true;

   108 }