Qt Mobility Reference Documentation

downloadmodel.cpp Example File

documentshare/downloadmodel.cpp
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 #include "downloadmodel.h"

 #include "download.h"

 DownloadModel::DownloadModel(QDocumentGallery *gallery, QObject *parent)
     : QAbstractListModel(parent)
     , gallery(gallery)
 {
 }

 DownloadModel::~DownloadModel()
 {
     qDeleteAll(downloads);
 }

 int DownloadModel::rowCount(const QModelIndex &parent) const
 {
     return !parent.isValid() ? downloads.count() : 0;
 }

 QModelIndex DownloadModel::index(int row, int column, const QModelIndex &parent) const
 {
     return !parent.isValid() && row >= 0 && row < downloads.count() && column == 0
             ? createIndex(row, 0, downloads.at(row))
             : QModelIndex();
 }

 QVariant DownloadModel::data(const QModelIndex &index, int role) const
 {
     Download *download = reinterpret_cast<Download *>(index.internalPointer());

     switch (role) {
     case Qt::DisplayRole:
         return download->displayName();
     case ItemIdRole:
         return download->itemId();
     case ItemTypeRole:
         return download->itemType();
     case StateRole:
         return int(download->state());
     case CurrentProgressRole:
         return download->currentProgress();
     case MaximumProgressRole:
         return download->maximumProgress();
     default:
         return QVariant();
     }
 }

 void DownloadModel::addDownload(QNetworkReply *networkReply)
 {
     Download *download = new Download(networkReply, gallery, this);
     connect(download, SIGNAL(progressChanged(Download*)), this, SLOT(downloadChanged(Download*)));
     connect(download, SIGNAL(stateChanged(Download*)), this, SLOT(downloadChanged(Download*)));

     beginInsertRows(QModelIndex(), downloads.count(), downloads.count());
     downloads.append(download);
     endInsertRows();
 }

 void DownloadModel::downloadChanged(Download *download)
 {
     QModelIndex index = createIndex(downloads.indexOf(download), 0, download);

     emit dataChanged(index, index);
 }


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Qt Mobility Project 1.1.0