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);
}