search_box.h

#ifndef GUI_SEARCH_BOX
#define GUI_SEARCH_BOX

#include <QWidget>
#include <QObject>
#include <QString>
#include <QStringList>
#include <QCompleter>
#include <string>
#include <QStringListModel>
#include "ui_searchbox.h"
#include "graph_model.h"
#include "filter_menu.h"

class SearchBox : public QWidget, private Ui::SearchBox {
    Q_OBJECT

    public:
        SearchBox(QWidget* parent = 0);
    ~SearchBox();

        std::string search_term();
        std::string search_type();

        void setAutocompletionModel(GraphModel* new_model);

        void setAutocompletionList(QStringList wordList);

    signals:
        void search(std::string searchTerm, std::string searchType);

        void searchTypeChanged(std::string new_type);

    protected slots:
        void on_searchButton_clicked(bool checked = false);

        void on_searchText_returnPressed();

        void on_searchType_currentIndexChanged(QString new_type);

    private:
        // The auto complete / search suggestion widget needed to display the suggestions beneath the search field
          QCompleter* autocompleter_;
          // The previous search - used to not perform a new search if the string hasn't changed since last
          std::string prev_search;
      // Model used for autocompletion 
      QAbstractItemModel* model_; 

};

#endif