ui: integrated autocompletion and filtering into SearchView

- QtSearchView was split into QtSearchView and QtSearchBox.
- QtSearchBox contains all Qt elements and can use them purely
- QtSearchView forwards calls from the SearchController to QtSearchBox
- Searching is initiated with MessageSearch to the SearchController
- Autocompletion is initiated with MessageSearchAutocomplete to the SearchController
- The search field is able to create filter queries by only giving autocompletions for the last token in the query
- For named tokens the search field adds their token ids to the query in the form of "A,25" for faster lookup

bug id = #21

src/lib/utility/messaging/type/MessageSearch.h

@@ -0,0 +1,23 @@
+#ifndef MESSAGE_SEARCH_H
+#define MESSAGE_SEARCH_H
+
+#include "utility/messaging/Message.h"
+#include "utility/types.h"
+
+class MessageSearch: public Message<MessageSearch>
+{
+public:
+	MessageSearch(const std::string& query)
+		: query(query)
+	{
+	}
+
+	static const std::string getStaticType()
+	{
+		return "MessageSearch";
+	}
+
+	const std::string query;
+};
+
+#endif // MESSAGE_SEARCH_H

src/lib/utility/messaging/type/MessageSearchAutocomplete.h

@@ -0,0 +1,23 @@
+#ifndef MESSAGE_SEARCH_AUTOCOMPLETE_H
+#define MESSAGE_SEARCH_AUTOCOMPLETE_H
+
+#include "utility/messaging/Message.h"
+#include "utility/types.h"
+
+class MessageSearchAutocomplete: public Message<MessageSearchAutocomplete>
+{
+public:
+	MessageSearchAutocomplete(const std::string& query)
+		: query(query)
+	{
+	}
+
+	static const std::string getStaticType()
+	{
+		return "MessageSearchAutocomplete";
+	}
+
+	const std::string query;
+};
+
+#endif // MESSAGE_SEARCH_AUTOCOMPLETE_H

src/lib/utility/utilityString.h

@@ -1,6 +1,7 @@
 #ifndef UTILITY_STRING_H
 #define UTILITY_STRING_H
 
+#include <sstream>
 #include <string>
 #include <vector>
 
@@ -12,6 +13,12 @@ namespace utility
 	template<typename ContainerType>
 	ContainerType split(const std::string& str, const std::string& delimiter);
 
+	template<typename ContainerType>
+	std::string join(const ContainerType& list, char delimiter);
+
+	template<typename ContainerType>
+	std::string join(const ContainerType& list, const std::string& delimiter);
+
 	template<typename ContainerType>
 	ContainerType tokenize(const std::string& str, char delimiter);
 
@@ -53,6 +60,30 @@ ContainerType utility::split(const std::string& str, const std::string& delimite
 	return c;
 }
 
+template<typename ContainerType>
+std::string utility::join(const ContainerType& list, char delimiter)
+{
+	return join<ContainerType>(list, std::string(1, delimiter));
+}
+
+template<typename ContainerType>
+std::string utility::join(const ContainerType& list, const std::string& delimiter)
+{
+	std::stringstream ss;
+	bool first = true;
+	for (const std::string& str : list)
+	{
+		if (!first)
+		{
+			ss << delimiter;
+		}
+		first = false;
+
+		ss << str;
+	}
+	return ss.str();
+}
+
 template<typename ContainerType>
 ContainerType utility::tokenize(const std::string& str, char delimiter)
 {