Merge branch 'master' into qt6_cmake_joshua

sources/import/edz/edzarchive.h

@@ -0,0 +1,59 @@
+/*
+	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 EDZARCHIVE_H
+#define EDZARCHIVE_H
+
+#include <QCoreApplication>
+#include <QString>
+#include <QScopedPointer>
+
+class QTemporaryDir;
+
+/**
+	@brief Extracts an EPLAN Data Portal package (.edz) to a temporary folder.
+
+	A .edz is a 7-Zip archive holding a part definition (part.xml), an EPLAN
+	macro, a product image and metadata. EdzArchive unpacks it so the rest of the
+	import pipeline can read the (portable) part.xml.
+
+	Extraction uses the bundled (public-domain) LZMA SDK 7-Zip reader, so no
+	external 7-Zip is required at runtime (see edzsevenzip).
+
+	The extracted tree lives in a QTemporaryDir owned by this object and is
+	removed when the EdzArchive is destroyed.
+*/
+class EdzArchive
+{
+	Q_DECLARE_TR_FUNCTIONS(EdzArchive)
+
+	public:
+		EdzArchive();
+		~EdzArchive();
+
+		bool extract(const QString &edz_path);
+
+		QString extractedDir() const;
+		QString partXmlPath() const;
+		QString errorString() const;
+
+	private:
+		QScopedPointer<QTemporaryDir> m_dir;
+		QString m_error;
+};
+
+#endif // EDZARCHIVE_H