UiXmlReader added (WIP)

src/frontend/gui/gui_xml.h

@@ -0,0 +1,31 @@
+#ifndef FRONTEND_GUI_GUI_XML_H_
+#define FRONTEND_GUI_GUI_XML_H_
+
+#include <memory>
+#include <unordered_map>
+
+#include "GUI.h"
+#include "../../coders/xml.h"
+
+namespace gui {
+    class UiXmlReader;
+
+    using uinode_reader = std::function<std::shared_ptr<UINode>(UiXmlReader&, xml::xmlelement)>;
+
+    class UiXmlReader {
+        std::unordered_map<std::string, uinode_reader> readers;
+    public:
+        UiXmlReader();
+
+        void add(const std::string& tag, uinode_reader reader);
+        
+        std::shared_ptr<UINode> readUINode(xml::xmlelement element);
+
+        std::shared_ptr<UINode> readXML(
+            const std::string& filename,
+            const std::string& source
+        );
+    };
+}
+
+#endif // FRONTEND_GUI_GUI_XML_H_