paysages3d/src/system/PackStream.cpp

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#include "PackStream.h"
#include "Logs.h"
#include <QFile>
#include <QDataStream>
#include <QString>
PackStream::PackStream()
{
file = NULL;
buffer = new QByteArray();
stream = new QDataStream(buffer, QIODevice::WriteOnly);
stream->setVersion(QDataStream::Qt_5_2);
}
PackStream::~PackStream()
{
delete buffer;
delete stream;
if (file)
{
delete file;
}
}
bool PackStream::bindToFile(const std::string &filepath, bool write)
{
if (not file)
{
file = new QFile(QString::fromStdString(filepath));
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if (not file->open(write ? QIODevice::WriteOnly : QIODevice::ReadOnly))
{
return false;
}
QDataStream *new_stream = new QDataStream(file);
if (new_stream)
{
delete stream;
stream = new_stream;
stream->setVersion(QDataStream::Qt_5_2);
return true;
}
else
{
return false;
}
}
else
{
return false;
}
}
void PackStream::write(const int *value)
{
if (value)
{
*stream << *value;
}
}
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void PackStream::write(const double *value)
{
if (value)
{
*stream << *value;
}
}
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void PackStream::write(const char *value, int max_length)
{
if (value)
{
int length = qstrlen(value);
*stream << QString::fromUtf8(value, length > max_length ? max_length : length);
}
}
void PackStream::write(const std::string &value)
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{
*stream << QString::fromStdString(value);
}
void PackStream::writeFromBuffer(const PackStream &other, bool prepend_size)
{
if (other.file)
{
Logs::error() << "Try to write from a substream bound to a file: " << other.file->fileName().toStdString() << std::endl;
}
else
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{
if (prepend_size)
{
int buffer_size = (int)other.buffer->size();
write(&buffer_size);
}
stream->writeRawData(other.buffer->data(), other.buffer->size());
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}
}
void PackStream::read(int* value)
{
if (value and not stream->atEnd())
{
int output;
*stream >> output;
*value = output;
}
}
void PackStream::read(double* value)
{
if (value and not stream->atEnd())
{
double output;
*stream >> output;
*value = output;
}
}
void PackStream::read(char* value, int max_length)
{
if (value and not stream->atEnd())
{
QString output;
*stream >> output;
QByteArray array = output.toUtf8();
qstrncpy(value, array.constData(), max_length);
}
}
std::string PackStream::readString()
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{
if (not stream->atEnd())
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{
QString output;
*stream >> output;
return output.toStdString();
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}
else
{
return "";
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}
}
void PackStream::skip(const int &value, int count)
{
stream->skipRawData(sizeof(value) * count);
}
void PackStream::skip(const double &value, int count)
{
stream->skipRawData(sizeof(value) * count);
}
void paysages::system::PackStream::skipBytes(int bytes)
{
stream->skipRawData(bytes);
}