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channelmodel.cpp
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channelmodel.cpp
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#include "channelmodel.h"
#include "programmodel.h"
#include <QDir>
#include <QFileInfo>
#include <QFile>
#include <QXmlStreamReader>
#include <QDateTime>
#ifdef DEBUG
#include <QDebug>
#endif
class XmlParser
{
public:
XmlParser(const QByteArray &data) : isProgramValid(false)
{
m_reader.addData(data);
parseXmlStream();
}
Channel channel() const
{
return m_channel;
}
QList<Program> programs() const
{
return m_programs;
}
private:
void parseXmlStream();
private:
QXmlStreamReader m_reader;
Channel m_channel;
QString m_currentToken;
QList<Program> m_programs;
Program m_currentProgram;
bool isProgramValid;
};
void XmlParser::parseXmlStream()
{
while (!m_reader.atEnd()) {
if (m_reader.readNext()) {
if (m_reader.isEndElement()) {
if (isProgramValid) {
m_programs.append(m_currentProgram);
isProgramValid = false;
}
m_currentToken.clear();
return;
}
if (m_reader.isCharacters()) {
if (m_currentToken == QLatin1String("title"))
m_currentProgram.setName(m_reader.text().toString());
else if (m_currentToken == QLatin1String("display-name"))
m_channel.setName(m_reader.text().toString());
}
if (m_reader.isStartElement()) {
m_currentToken = m_reader.name().toString();
if (m_currentToken == QLatin1String("icon")) {
QXmlStreamAttributes attribs = m_reader.attributes();
foreach (QXmlStreamAttribute attr, attribs) {
const QString attrName = attr.name().toString();
const QString attrValue = attr.value().toString();
if (attrName == QLatin1String("src"))
m_channel.setIcon(QUrl(attrValue));
}
} else if (m_currentToken == QLatin1String("programme")) {
isProgramValid = true;
QXmlStreamAttributes attribs = m_reader.attributes();
foreach (QXmlStreamAttribute attr, attribs) {
const QString attrName = attr.name().toString();
const QString attrValue = attr.value().toString();
if (attrName == QLatin1String("start")) {
QDateTime dt = QDateTime::fromString(attrValue, QLatin1String("yyyyMMddhhmmss"));
m_currentProgram.setStartTime(dt.toLocalTime().toString(QLatin1String("hh:mm")));
}
}
}
parseXmlStream();
}
}
}
}
ChannelModel::ChannelModel(QObject *parent) :
QAbstractListModel(parent)
{
}
void ChannelModel::init(const QString &channelDirectory)
{
QDir channelDir(channelDirectory);
const QFileInfoList channels = channelDir.entryInfoList(QDir::Files);
int index = 1;
foreach (const QFileInfo &fi, channels) {
QFile file(fi.canonicalFilePath());
if (!file.open(QIODevice::ReadOnly))
continue;
XmlParser parser(file.readAll());
Channel channel = parser.channel();
channel.setNumber(index++);
m_channels.append(channel);
QList<Program> programs = parser.programs();
m_channelProgramMap.insert(channel.name(), new ProgramModel(programs));
m_channelProgramSummaryMap.insert(channel.name(), new ProgramModel(programs, 2));
#ifdef DEBUG
foreach (const Channel &ch, m_channels) {
qDebug() << ch.name() << ch.icon();
const QList<Program> programs = parser.programs();
foreach (const Program &p, programs)
qDebug() << p.name() << p.startTime();
qDebug() << "--------------------------";
}
#endif
}
emit initialized();
}
int ChannelModel::rowCount(const QModelIndex &/*parent*/) const {
return m_channels.count();
}
QVariant ChannelModel::data(const QModelIndex & index, int role) const {
if (index.row() < 0 || index.row() >= m_channels.count())
return QVariant();
const Channel &channel = m_channels[index.row()];
if (role == NameRole)
return channel.name();
else if (role == NumberRole)
return channel.number();
else if (role == IconRole)
return channel.icon();
else if (role == ProgramSummaryRole)
return QVariant::fromValue(m_channelProgramSummaryMap.value(channel.name()));
else if (role == ProgramRole)
return QVariant::fromValue(m_channelProgramMap.value(channel.name()));
return QVariant();
}
QHash<int, QByteArray> ChannelModel::roleNames() const {
QHash<int, QByteArray> roles;
roles[NameRole] = "channelName";
roles[NumberRole] = "channelNumber";
roles[IconRole] = "channelIcon";
roles[ProgramRole] = "channelProgram";
roles[ProgramSummaryRole] = "channelProgramSummary";
return roles;
}