Make templates localizable (Closes #100)

src/data/localized_string.hpp

@@ -0,0 +1,37 @@
+//+----------------------------------------------------------------------------+
+//| Description:  Magic Set Editor - Program to make Magic (tm) cards          |
+//| Copyright:    (C) Twan van Laarhoven and the other MSE developers          |
+//| License:      GNU General Public License 2 or later (see file COPYING)     |
+//+----------------------------------------------------------------------------+
+
+#pragma once
+
+// ----------------------------------------------------------------------------- : Includes
+
+#include <util/prec.hpp>
+
+class Locale;
+
+// ----------------------------------------------------------------------------- : LocalizedString
+
+/// Translations of a text in a template
+class LocalizedString {
+public:
+  String default_; //< Value in all other locales
+  unordered_map<String, String> translations;
+
+  /// Translate
+  String const& get(Locale const& locale) const;
+  String const& get(String const& locale) const;
+  String const& get() const;
+
+  bool empty() const { return default_.empty(); }
+};
+
+#define REFLECT_LOCALIZED_N(name, var) \
+  do { \
+    handler.handle(name, var.default_); \
+    handler.handle(_("localized_") name, var.translations); \
+  } while (0)
+
+#define REFLECT_LOCALIZED(var) REFLECT_LOCALIZED_N(_(#var), var)