ifcparse refactoring (#190)

Unify attribute containers, provide latebound attribute access on IfcBaseEntity, more basic tests on Travis
2026-08-17 02:49:12 +00:00 · 2017-06-05 17:26:58 +02:00
parent 9a43658716
commit 5e0da9725a
49 changed files with 9228 additions and 9416 deletions
@@ -0,0 +1,106 @@
+/********************************************************************************
+ *                                                                              *
+ * This file is part of IfcOpenShell.                                           *
+ *                                                                              *
+ * IfcOpenShell is free software: you can redistribute it and/or modify         *
+ * it under the terms of the Lesser GNU General Public License as published by  *
+ * the Free Software Foundation, either version 3.0 of the License, or          *
+ * (at your option) any later version.                                          *
+ *                                                                              *
+ * IfcOpenShell 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                 *
+ * Lesser GNU General Public License for more details.                          *
+ *                                                                              *
+ * You should have received a copy of the Lesser GNU General Public License     *
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.         *
+ *                                                                              *
+ ********************************************************************************/
+
+#ifndef IFCENTITYINSTANCEDATA_H
+#define IFCENTITYINSTANCEDATA_H
+
+#include "../ifcparse/ArgumentType.h"
+
+#include <boost/shared_ptr.hpp>
+
+#include <vector>
+
+class Argument;
+class IfcEntityList;
+namespace IfcParse {
+	class IfcFile;
+}
+
+class IFC_PARSE_API IfcEntityInstanceData {
+public:
+	// Public for backwards compatibility
+	IfcParse::IfcFile* file;
+protected:
+	unsigned id_;
+	IfcSchema::Type::Enum type_;
+	mutable std::vector<Argument*> attributes_;
+
+	// To reduce memory footprint, these two could potentially be combined,
+	// e.g. initialized_ <-> offset_in_file_ == 0, but it would imply that
+	// instances cannot be located at the beginning of the file. Officially
+	// there should be a header anyways.
+	mutable bool initialized_;
+	unsigned offset_in_file_;
+
+	void load_() const;
+public:
+	IfcEntityInstanceData(IfcSchema::Type::Enum type, IfcParse::IfcFile* file_, unsigned id = 0, unsigned offset_in_file = 0)
+		: file(file_), id_(id), type_(type), initialized_(false), offset_in_file_(offset_in_file)
+	{}
+
+	IfcEntityInstanceData(IfcSchema::Type::Enum type)
+		: file(0), id_(0), type_(type), initialized_(true)
+	{}
+
+	/*
+	IfcEntityInstanceData(IfcParse::IfcFile* file = 0, unsigned id = 0, IfcSchema::Type::Enum type = IfcSchema::Type::UNDEFINED, unsigned offset_in_file = 0, size_t n)
+	: file_(file), id_(0), type_(type), initialized_(false)
+	{
+	attributes_.reserve(n);
+	}
+
+	IfcEntityInstanceData(IfcParse::IfcFile* file = 0, unsigned id = 0, IfcSchema::Type::Enum type = IfcSchema::Type::UNDEFINED, const std::vector<Argument*>& attributes)
+	: file_(file), id_(0), type_(type), attributes_(attributes), initialized_(true)
+	{}
+	*/
+
+	IfcEntityInstanceData(const IfcEntityInstanceData& e);
+
+	~IfcEntityInstanceData();
+
+	boost::shared_ptr<IfcEntityList> getInverse(IfcSchema::Type::Enum type, int attribute_index);
+
+	Argument* getArgument(unsigned int i) const;
+
+	// NB: This makes a copy of the argument
+	void setArgument(unsigned int i, Argument* a, IfcUtil::ArgumentType attr_type = IfcUtil::Argument_UNKNOWN);
+
+	unsigned int getArgumentCount() const {
+		if (!initialized_) {
+			load_();
+		}
+		return attributes_.size();
+	}
+
+	IfcSchema::Type::Enum type() const {
+		return type_;
+	}
+
+	std::string toString(bool upper = false) const;
+
+	unsigned int id() const { return id_; }
+	unsigned int offset_in_file() const { return offset_in_file_; }
+
+	// NB: const ommitted for lazy loading
+	std::vector<Argument*>& attributes() const { return attributes_; }
+
+	unsigned set_id(boost::optional<unsigned> i = boost::none);
+};
+
+#endif