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/component/controller/SearchController.h

@@ -7,8 +7,9 @@
 #include "utility/messaging/MessageListener.h"
 #include "utility/messaging/type/MessageActivateToken.h"
 #include "utility/messaging/type/MessageFind.h"
-#include "utility/messaging/type/MessageFinishedParsing.h"
 #include "utility/messaging/type/MessageRefresh.h"
+#include "utility/messaging/type/MessageSearch.h"
+#include "utility/messaging/type/MessageSearchAutocomplete.h"
 
 class GraphAccess;
 class SearchView;
@@ -17,21 +18,21 @@ class SearchController
 	: public Controller
 	, public MessageListener<MessageActivateToken>
 	, public MessageListener<MessageFind>
-	, public MessageListener<MessageFinishedParsing>
 	, public MessageListener<MessageRefresh>
+	, public MessageListener<MessageSearch>
+	, public MessageListener<MessageSearchAutocomplete>
 {
 public:
 	SearchController(GraphAccess* graphAccess);
 	~SearchController();
 
-	void search(const std::string& s);
-	//void autocomplete(const std::string& s);
-
 private:
 	virtual void handleMessage(MessageActivateToken* message);
 	virtual void handleMessage(MessageFind* message);
-	virtual void handleMessage(MessageFinishedParsing* message);
 	virtual void handleMessage(MessageRefresh* message);
+	virtual void handleMessage(MessageSearch* message);
+	virtual void handleMessage(MessageSearchAutocomplete* message);
+
 	SearchView* getView();
 
 	GraphAccess* m_graphAccess;