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PlaylistItemModel.cpp    168 lines (112 with data), 3.7 kB

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/* PlaylistItemModel.cpp */
/* Copyright (C) 2011 Lucio Carreras
*
* This file is part of sayonara player
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
/*
* PlaylistItemModel.cpp
*
* Created on: Apr 8, 2011
* Author: luke
*/
#include "GUI/playlist/model/PlaylistItemModel.h"
#include "HelperStructs/MetaData.h"
#include <QList>
#include <QDebug>
using namespace std;
PlaylistItemModel::PlaylistItemModel(QObject* parent) : QAbstractListModel(parent) {
}
PlaylistItemModel::~PlaylistItemModel() {
// TODO Auto-generated destructor stub
}
int PlaylistItemModel::rowCount(const QModelIndex &parent) const{
Q_UNUSED(parent);
return (int) (m_meta.size());
}
QVariant PlaylistItemModel::data(const QModelIndex &index, int role) const{
if (!index.isValid())
return QVariant();
if (index.row() >= (int) m_meta.size() || index.row() < 0)
return QVariant();
if (role == Qt::DisplayRole){
return QVariant();
}
if (role == Qt::WhatsThisRole){
return m_meta[index.row()].toVariant();
}
else
return QVariant();
}
Qt::ItemFlags PlaylistItemModel::flags(const QModelIndex &index = QModelIndex()) const{
if (!index.isValid())
return Qt::ItemIsEnabled;
return QAbstractItemModel::flags(index) | Qt::ItemIsEditable;
}
bool PlaylistItemModel::setData(const QModelIndex &index, const QVariant &value, int role = Qt::EditRole){
if (index.isValid() && role == Qt::EditRole) {
MetaData md;
if(MetaData::fromVariant(value, md)){
m_meta[index.row()] = md;
emit dataChanged(index, index);
}
return true;
}
return false;
}
bool PlaylistItemModel::insertRows(int position, int rows, const QModelIndex &index){
Q_UNUSED(index);
beginInsertRows(QModelIndex(), position, position+rows-1);
MetaDataList v_md_new;
// copy old
for(int i=0; i<position; i++){
v_md_new.push_back(m_meta[i]);
}
// create new space
for(int i=0; i<rows; i++){
MetaData md;
v_md_new.push_back(md);
}
// copy old
for(uint i= (uint) position; i<m_meta.size(); i++){
v_md_new.push_back(m_meta[i]);
}
m_meta = v_md_new;
endInsertRows();
return true;
}
bool PlaylistItemModel::removeRows(int position, int rows, const QModelIndex &index)
{
Q_UNUSED(index);
if (rows < 1) {
return true;
}
beginRemoveRows(QModelIndex(), position, position+rows-1);
MetaDataList v_md_new;
for (uint i=0; i<m_meta.size(); i++) {
if(i >= (uint) position && i<=(uint)(position+rows-1)) continue;
v_md_new.push_back(m_meta[i]);
}
m_meta = v_md_new;
endRemoveRows();
return true;
}
void PlaylistItemModel::set_selected(QList<int>& rows){
_selected_rows = rows;
for(uint i=0; i<m_meta.size(); i++){
m_meta[i].pl_selected = rows.contains(i);
}
}
bool PlaylistItemModel::is_selected(int row) const {
return _selected_rows.contains(row);
}