Files
qelectrotech-source-mirror/sources/container/qetcontainer.h
T
ispyisail f48bd6717d Merge master into feat/qetz-db-truth-v2
#1470 keeps a .qetz's pictures out of the document; the index path still
reads them in, as before.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
2026-10-14 07:00:37 +13:00

90 lines
3.7 KiB
C++

/*
Copyright 2006-2026 The QElectroTech Team
This file is part of QElectroTech.
QElectroTech 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 2 of the License, or
(at your option) any later version.
QElectroTech 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.
You should have received a copy of the GNU General Public License
along with QElectroTech. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef QETCONTAINER_H
#define QETCONTAINER_H
#include "qetcontainerdb.h"
#include "qetzip.h"
#include <QDomDocument>
#include <QHash>
/**
@brief The QetContainer namespace
Splits a project document into the parts of a .qetz file and joins
them back:
mimetype first, stored
manifest.xml format and oldest format allowed to read it
project.xml the project, each part replaced by
<qetz-part file="..."/>
project.sqlite the engineering data (format 2,
QetContainerDb): title-block fields, symbol
information, links, wires
folios/<uuid>.xml one per folio
elements/.../<name> the project's symbol definitions
titleblocks/<name>.titleblock
images/<sha256>.png folio pictures, once each, not base64
join(split(d)) is d. Nothing here knows what the parts mean: the
project is read and written by the same code as a .qet file.
Given a Pictures map, join() leaves the pictures out of the document:
each <image> keeps the name of its file, pictureFile(), and the bytes
go in the map. Turning them back into base64 text costs seconds on a
project with large pictures, and the folio would only decode it again.
*/
namespace QetContainer
{
extern const char MimeType[];
/// Picture bytes by file name, see join()
using Pictures = QHash<QString, QByteArray>;
/// The format written; files of a later format are refused by join()
/// unless their min-reader allows this one.
constexpr int Format = 3;
QList<QetZip::Entry> split(const QDomDocument &project,
const QString &writer = QString(),
QString *error = nullptr,
const QByteArray &index = QByteArray(),
const QHash<QString, QByteArray> &kept_from = QHash<QString, QByteArray>());
bool join(const QList<QetZip::Entry> &entries, QDomDocument *project,
QString *error = nullptr, QStringList *folio_files = nullptr,
Pictures *pictures = nullptr);
/// A folio part of @p files, which join() left out, with its
/// pictures and its engineering data back (stage D2)
/// @p reader, if any, reads the engineering data of @p files
bool readFolio(const QHash<QString, QByteArray> &files, const QString &file,
QDomDocument *folio, QString *error = nullptr,
QetContainerDb::FolioReader *reader = nullptr);
/// The file join() left the picture of @p image in, or an empty string
QString pictureFile(const QDomElement &image);
/// Take what QElectroTech computes out of a folio (format 3)
void dropComputed(QDomElement diagram, bool terminal_lists);
/// Parse @p xml as a .qet is read (QETProject::openFile)
bool parse(const QByteArray &xml, QDomDocument *document, QString *error = nullptr);
/// true if @p content is a zip, so a .qetz rather than a .qet
bool isZip(const QByteArray &content);
/// The project document in @p content, a .qet or a .qetz
bool readDocument(const QByteArray &content, QDomDocument *document,
QString *error = nullptr, Pictures *pictures = nullptr);
}
#endif // QETCONTAINER_H