tdesktop/Telegram/SourceFiles/serialize/serialize_document.cpp

171 lines
5.7 KiB
C++

/*
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) 2014-2016 John Preston, https://desktop.telegram.org
*/
#include "stdafx.h"
#include "serialize/serialize_document.h"
#include "serialize/serialize_common.h"
namespace {
enum StickerSetType {
StickerSetTypeEmpty = 0,
StickerSetTypeID = 1,
StickerSetTypeShortName = 2,
};
} // namespace
namespace Serialize {
void Document::writeToStream(QDataStream &stream, DocumentData *document) {
stream << quint64(document->id) << quint64(document->_access) << qint32(document->date);
stream << qint32(document->_version);
stream << document->name << document->mime << qint32(document->_dc) << qint32(document->size);
stream << qint32(document->dimensions.width()) << qint32(document->dimensions.height());
stream << qint32(document->type);
if (auto sticker = document->sticker()) {
stream << document->sticker()->alt;
switch (document->sticker()->set.type()) {
case mtpc_inputStickerSetID: {
stream << qint32(StickerSetTypeID);
} break;
case mtpc_inputStickerSetShortName: {
stream << qint32(StickerSetTypeShortName);
} break;
case mtpc_inputStickerSetEmpty:
default: {
stream << qint32(StickerSetTypeEmpty);
} break;
}
writeStorageImageLocation(stream, document->sticker()->loc);
} else {
stream << qint32(document->duration());
writeStorageImageLocation(stream, document->thumb->location());
}
}
DocumentData *Document::readFromStreamHelper(int streamAppVersion, QDataStream &stream, const StickerSetInfo *info) {
quint64 id, access;
QString name, mime;
qint32 date, dc, size, width, height, type, version;
stream >> id >> access >> date;
if (streamAppVersion >= 9061) {
stream >> version;
} else {
version = 0;
}
stream >> name >> mime >> dc >> size;
stream >> width >> height;
stream >> type;
QVector<MTPDocumentAttribute> attributes;
if (!name.isEmpty()) {
attributes.push_back(MTP_documentAttributeFilename(MTP_string(name)));
}
qint32 duration = -1;
StorageImageLocation thumb;
if (type == StickerDocument) {
QString alt;
qint32 typeOfSet;
stream >> alt >> typeOfSet;
thumb = readStorageImageLocation(stream);
MTPDdocumentAttributeSticker::Flags stickerFlags = 0;
if (typeOfSet == StickerSetTypeEmpty) {
attributes.push_back(MTP_documentAttributeSticker(MTP_flags(stickerFlags), MTP_string(alt), MTP_inputStickerSetEmpty(), MTPMaskCoords()));
} else if (info) {
if (info->setId == Stickers::DefaultSetId || info->setId == Stickers::CloudRecentSetId || info->setId == Stickers::CustomSetId) {
typeOfSet = StickerSetTypeEmpty;
}
switch (typeOfSet) {
case StickerSetTypeID: {
attributes.push_back(MTP_documentAttributeSticker(MTP_flags(stickerFlags), MTP_string(alt), MTP_inputStickerSetID(MTP_long(info->setId), MTP_long(info->accessHash)), MTPMaskCoords()));
} break;
case StickerSetTypeShortName: {
attributes.push_back(MTP_documentAttributeSticker(MTP_flags(stickerFlags), MTP_string(alt), MTP_inputStickerSetShortName(MTP_string(info->shortName)), MTPMaskCoords()));
} break;
case StickerSetTypeEmpty:
default: {
attributes.push_back(MTP_documentAttributeSticker(MTP_flags(stickerFlags), MTP_string(alt), MTP_inputStickerSetEmpty(), MTPMaskCoords()));
} break;
}
}
} else {
stream >> duration;
if (type == AnimatedDocument) {
attributes.push_back(MTP_documentAttributeAnimated());
}
thumb = readStorageImageLocation(stream);
}
if (width > 0 && height > 0) {
if (duration >= 0) {
attributes.push_back(MTP_documentAttributeVideo(MTP_int(duration), MTP_int(width), MTP_int(height)));
} else {
attributes.push_back(MTP_documentAttributeImageSize(MTP_int(width), MTP_int(height)));
}
}
if (!dc && !access) {
return nullptr;
}
return App::documentSet(id, nullptr, access, version, date, attributes, mime, thumb.isNull() ? ImagePtr() : ImagePtr(thumb), dc, size, thumb);
}
DocumentData *Document::readStickerFromStream(int streamAppVersion, QDataStream &stream, const StickerSetInfo &info) {
return readFromStreamHelper(streamAppVersion, stream, &info);
}
DocumentData *Document::readFromStream(int streamAppVersion, QDataStream &stream) {
return readFromStreamHelper(streamAppVersion, stream, nullptr);
}
int Document::sizeInStream(DocumentData *document) {
int result = 0;
// id + access + date + version
result += sizeof(quint64) + sizeof(quint64) + sizeof(qint32) + sizeof(qint32);
// + namelen + name + mimelen + mime + dc + size
result += stringSize(document->name) + stringSize(document->mime) + sizeof(qint32) + sizeof(qint32);
// + width + height
result += sizeof(qint32) + sizeof(qint32);
// + type
result += sizeof(qint32);
if (auto sticker = document->sticker()) { // type == StickerDocument
// + altlen + alt + type-of-set
result += stringSize(sticker->alt) + sizeof(qint32);
// + thumb loc
result += Serialize::storageImageLocationSize();
} else {
// + duration
result += sizeof(qint32);
// + thumb loc
result += Serialize::storageImageLocationSize();
}
return result;
}
} // namespace Serialize