+// Copyright (C) 2006 Erik Dahlberg
+//
+// This file is part of LSystem3d.
+//
+// LSystem3D 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.
+//
+// LSystem3D 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 LSystem3D; if not, write to the Free Software
+// Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+
+
+
+
+#ifndef XMLSTRUCTURE_H
+#define XMLSTRUCTURE_H
+
+#include <string>
+
+#include <libxml++/document.h>
+#include <libxml++/nodes/element.h>
+#include <libxml++/nodes/node.h>
+#include <libxml++/parsers/domparser.h>
+
+using namespace std;
+
+
+
+/**
+ * Basic logic for building and parsing xml-structures
+ */
+class XMLStructure
+{
+public:
+ /**
+ * Constructor
+ */
+ XMLStructure();
+
+ /**
+ * Destructor
+ */
+ ~XMLStructure();
+
+protected:
+
+ // Saver
+ // -----
+
+ /**
+ * Create new document with root node
+ * @param rootName name of root
+ */
+ void createDocumentWithRoot(string rootName);
+
+ /**
+ * Add new child to root
+ * @param name name of child
+ */
+ void addChildToRoot(string name);
+
+ /**
+ * Add a string as content of current child
+ * @param text the text
+ */
+ void addString(string text);
+
+ /**
+ * Add a number as content of current child
+ * @param value the number
+ */
+ void addNumber(double value);
+
+ /**
+ * Add attribute to current child
+ * @param name name of attribute
+ * @param value value of attribute
+ */
+ void addAttribute(string name, string value);
+
+ /**
+ * Save document to file
+ * @param path path to file
+ */
+ void saveToDisk(string path);
+
+
+ // Loader
+ // ------
+
+ /**
+ * Load document from file
+ * @param path path to file
+ */
+ void loadFromDisk(string path);
+
+ /**
+ * Find all children with the specified name
+ * @param name name of children
+ * @return true if found, else false
+ */
+ bool findChild(string name);
+
+ /**
+ * Find next child in current search result list
+ * @return true if found, else false
+ */
+ bool findNextChild();
+
+ /**
+ * Get content of current child as a string
+ * @return the string
+ */
+ string getString();
+
+ /**
+ * Get content of current child as a number
+ * @return the number
+ */
+ double getNumber();
+
+ /**
+ * Get attribute value of current child
+ * @param name name of attribute
+ * @return the value
+ */
+ string getAttribute(string name);
+
+private:
+
+ // Saver
+ xmlpp::Element *_rootElement;
+ xmlpp::Element *_activeElement;
+ xmlpp::Document *_activeDocument;
+
+ // Loader
+ xmlpp::DomParser _parser;
+ xmlpp::Node::NodeList _activeList;
+ xmlpp::Node::NodeList::iterator _activeChildInList;
+};
+
+
+
+#endif