tdesktop/Telegram/SourceFiles/media/media_clip_implementation.cpp

/*
This file is part of Telegram Desktop,
the official desktop version of Telegram messaging app, see https://telegram.org

Telegram Desktop 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.

It 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.

In addition, as a special exception, the copyright holders give permission
to link the code of portions of this program with the OpenSSL library.

Full license: https://github.com/telegramdesktop/tdesktop/blob/master/LICENSE
Copyright (c) 2014-2017 John Preston, https://desktop.telegram.org
*/
#include "media/media_clip_implementation.h"

namespace Media {
namespace Clip {
namespace internal {

void ReaderImplementation::initDevice() {
	if (_data->isEmpty()) {
		if (_file.isOpen()) _file.close();
		_file.setFileName(_location->name());
		_dataSize = _file.size();
	} else {
		if (_buffer.isOpen()) _buffer.close();
		_buffer.setBuffer(_data);
		_dataSize = _data->size();
	}
	_device = _data->isEmpty() ? static_cast<QIODevice*>(&_file) : static_cast<QIODevice*>(&_buffer);
}

} // namespace internal
} // namespace Clip
} // namespace Media