1 files changed, 116 insertions, 0 deletions
diff --git a/src/factory.h b/src/factory.h
new file mode 100644
index 000000000..a1df55277
--- /dev/null
+++ b/src/factory.h
@@ -0,0 +1,116 @@
+/** @file
+ * Generic Factory
+ *//*
+ * Authors:
+ *   Markus Engel
+ *
+ * Copyright (C) 2013 Authors
+ * Released under GNU GPL, read the file 'COPYING' for more information
+ */
+
+#ifndef FACTORY_H_SEEN
+#define FACTORY_H_SEEN
+
+#include <exception>
+#include <map>
+#include <string>
+#include "xml/node.h"
+
+/**
+ * A simple singleton implementation.
+ */
+template <class T>
+struct Singleton {
+    static T &instance() {
+        static T inst;
+        return inst;
+    }
+};
+
+namespace FactoryExceptions {
+class TypeNotRegistered : public std::exception {
+public:
+    TypeNotRegistered(std::string const &type)
+        : std::exception()
+        , _type_string(type) {
+    }
+
+    virtual ~TypeNotRegistered() throw() {
+    }
+
+    char const *what() const throw() {
+        return _type_string.c_str();
+    }
+
+private:
+    std::string const _type_string;
+};
+} // namespace FactoryExceptions
+
+/**
+ * A Factory for creating objects which can be identified by strings.
+ */
+template <class BaseObject>
+class Factory {
+public:
+    typedef BaseObject *CreateFunction();
+
+    bool registerObject(std::string const &id, CreateFunction *creator) {
+        return this->_object_map.insert(std::make_pair(id, creator)).second;
+    }
+
+    BaseObject *createObject(std::string const &id) const {
+        typename std::map<std::string const, CreateFunction *>::const_iterator it = this->_object_map.find(id);
+
+        if (it == this->_object_map.end()) {
+            throw FactoryExceptions::TypeNotRegistered(id);
+        }
+
+        return it->second();
+    }
+
+private:
+    std::map<std::string const, CreateFunction *> _object_map;
+};
+
+
+struct NodeTraits {
+    static std::string get_type_string(Inkscape::XML::Node const &node) {
+        std::string name;
+
+        switch (node.type()) {
+        case Inkscape::XML::TEXT_NODE:
+            name = "string";
+            break;
+
+        case Inkscape::XML::ELEMENT_NODE: {
+            gchar const *const sptype = node.attribute("sodipodi:type");
+
+            if (sptype) {
+                name = sptype;
+            } else {
+                name = node.name();
+            }
+            break;
+        }
+        default:
+            name = "";
+            break;
+        }
+
+        return name;
+    }
+};
+
+#endif
+
+/*
+  Local Variables:
+  mode:c++
+  c-file-style:"stroustrup"
+  c-file-offsets:((innamespace . 0)(inline-open . 0)(case-label . +))
+  indent-tabs-mode:nil
+  fill-column:99
+  End:
+*/
+// vim: filetype=cpp:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:fileencoding=utf-8:textwidth=99 :