Add SvgSerializer developed in collaboration with ROOT B.V.

src/ifcconvert/util.h

@@ -0,0 +1,64 @@
+/********************************************************************************
+ *                                                                              *
+ * 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 IFCCONVERT_UTIL_H
+#define IFCCONVERT_UTIL_H
+
+#include <sstream>
+#include <vector>
+
+#include "../ifcparse/SharedPointer.h"
+
+namespace util {
+	class string_buffer {
+	public:
+		class item {
+		public:
+			virtual std::string str() const = 0;
+		};
+		class string_item : public item {
+			std::string s;
+		public:
+			string_item(const std::string& s) : s(s) {}
+			void assign(const std::string& s) { this->s = s; }
+			const std::string& value() const { return s; }
+			std::string& value() { return s; }
+			std::string str() const { return s; }
+		};
+		class float_item : public item {
+			double d;
+		public:
+			float_item(const double& d) : d(d) {}
+			void assign(const double& d) { this->d = d; }
+			const double& value() const { return d; }
+			double& value() { return d; }
+			std::string str() const { std::stringstream ss; ss << d; return ss.str(); }
+		};
+	private:
+		std::vector< SHARED_PTR<item> > items;
+		void clear();
+		void assign(const std::vector< SHARED_PTR<item> >& other);
+	public:
+		SHARED_PTR<string_item> add(const std::string& s);
+		SHARED_PTR<float_item> add(const double& d);
+		std::string str() const;
+	};
+}
+
+#endif