combined_editor function, and improved dependency handling (removing duplicates), viewer refreshes on events from script manager

git-svn-id: svn://svn.code.sf.net/p/magicseteditor/code/trunk@147 0fc631ac-6414-0410-93d0-97cfa31319b6

src/data/field/text.hpp

@@ -12,6 +12,7 @@
 #include <util/prec.hpp>
 #include <util/defaultable.hpp>
 #include <util/rotation.hpp>
+#include <util/age.hpp>
 #include <data/field.hpp>
 #include <data/font.hpp>
 #include <data/symbol_font.hpp>
@@ -88,6 +89,7 @@ class TextValue : public Value {
 	
 	typedef Defaultable<String> ValueType;
 	ValueType value;				///< The text of this value
+	Age       last_update;			///< When was the text last changed?
 	
 	virtual String toString() const;
 	virtual bool update(Context&);