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join() and readDocument() gained a parameter on both sides: master's Pictures map (#1470) and this branch's format. Both are kept, pictures first. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
87 lines
3.5 KiB
C++
87 lines
3.5 KiB
C++
/*
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Copyright 2006-2026 The QElectroTech Team
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This file is part of QElectroTech.
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QElectroTech is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 2 of the License, or
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(at your option) any later version.
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QElectroTech is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with QElectroTech. If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef QETCONTAINER_H
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#define QETCONTAINER_H
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#include "qetzip.h"
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#include <QDomDocument>
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#include <QHash>
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/**
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@brief The QetContainer namespace
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Splits a project document into the parts of a .qetz file and joins
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them back:
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mimetype first, stored
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manifest.xml format and oldest format allowed to read it
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project.xml the project, each part replaced by
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<qetz-part file="..."/>
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project.sqlite the engineering data (format 2 on,
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QetContainerDb): title-block fields, symbol
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information, links, wires
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folios/<uuid>.xml one per folio
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elements/.../<name> the project's symbol definitions
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titleblocks/<name>.titleblock
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images/<sha256>.png folio pictures, once each, not base64
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join(split(d)) is d. Nothing here knows what the parts mean: the
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project is read and written by the same code as a .qet file.
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Given a Pictures map, join() leaves the pictures out of the document:
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each <image> keeps the name of its file, pictureFile(), and the bytes
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go in the map. Turning them back into base64 text costs seconds on a
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project with large pictures, and the folio would only decode it again.
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The format is written down in QETZ-FORMAT.md, beside this file.
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*/
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namespace QetContainer
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{
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extern const char MimeType[];
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/// Picture bytes by file name, see join()
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using Pictures = QHash<QString, QByteArray>;
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/// The format written; files of a later format are refused by join()
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/// unless their min-reader allows this one.
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constexpr int Format = 3;
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/// 3: the database's rows keyed by the items' uuids, true/false and
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/// show flags as 1/0, its PRAGMA user_version the format, the symbols' type left
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/// in the folio files, no column for where a block sat. Format 2 is
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/// still read; a later format whose min-reader allows this one is
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/// read too, and said so through join()'s @p format.
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QList<QetZip::Entry> split(const QDomDocument &project,
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const QString &writer = QString(),
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QString *error = nullptr);
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bool join(const QList<QetZip::Entry> &entries, QDomDocument *project,
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QString *error = nullptr, Pictures *pictures = nullptr,
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int *format = nullptr);
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/// The file join() left the picture of @p image in, or an empty string
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QString pictureFile(const QDomElement &image);
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/// Parse @p xml as a .qet is read (QETProject::openFile)
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bool parse(const QByteArray &xml, QDomDocument *document, QString *error = nullptr);
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/// true if @p content is a zip, so a .qetz rather than a .qet
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bool isZip(const QByteArray &content);
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/// The project document in @p content, a .qet or a .qetz
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bool readDocument(const QByteArray &content, QDomDocument *document,
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QString *error = nullptr, Pictures *pictures = nullptr,
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int *format = nullptr);
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}
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#endif // QETCONTAINER_H
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