ardour_dropdown.h

Go to the documentation of this file.

/*
 * Copyright (C) 2014 Paul Davis <paul@linuxaudiosystems.com>
 * Copyright (C) 2017-2018 Robin Gareus <robin@gareus.org>
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License along
 * with this program; if not, write to the Free Software Foundation, Inc.,
 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
 */
 
#ifndef _WIDGETS_ARDOUR_DROPDOWN_H_
#define _WIDGETS_ARDOUR_DROPDOWN_H_
 
#include <list>
#include <stdint.h>
 
#include <ytkmm/action.h>
#include <ytkmm/menu.h>
#include <ytkmm/menuitem.h>
 
#include "widgets/ardour_button.h"
#include "widgets/visibility.h"
 
namespace ArdourWidgets {
 
class LIBWIDGETS_API ArdourDropdown : public ArdourButton
{
public:
 
        ArdourDropdown (Element e = default_elements);
        virtual ~ArdourDropdown ();
 
        bool on_button_press_event (GdkEventButton*);
        bool on_scroll_event (GdkEventScroll*);
        void menu_size_request(Gtk::Requisition*);
 
        void clear_items ();
        void add_menu_elem (Gtk::Menu_Helpers::Element e);
        void append_text_item (std::string const& text);
        void add_separator ();
        void append (Glib::RefPtr<Gtk::Action>);
        void append (Gtk::Menu&, Glib::RefPtr<Gtk::Action>);
 
        void disable_scrolling();
 
        Gtk::Menu_Helpers::MenuList& items () { return _menu.items (); }
        Gtk::Menu& menu () { return _menu; }
 
        void set_active (std::string const& text);
 
        void set_active (int);
        int get_active_row_number () const;
 
protected:
        void default_text_handler (std::string const&);
 
private:
        class LblMenuItem : public Gtk::MenuItem
        {
        public:
                LblMenuItem (std::string const& label, std::string const& menutext)
                        : Gtk::MenuItem (menutext, false)
                        , _label (label)
                {
                }
 
                std::string label () const
                {
                        return _label;
                }
 
                std::string menutext () const
                {
                        return get_label ();
                }
 
        private:
                std::string _label;
        };
 
        class LblMenuElement : public Gtk::Menu_Helpers::MenuElem
        {
        public:
                LblMenuElement (Glib::RefPtr<Gtk::Action> action)
                        : Gtk::Menu_Helpers::MenuElem ("")
                {
                        LblMenuItem* mmi = manage (new LblMenuItem (action->get_short_label(), action->get_label()));
                        child_->unreference ();
                        set_child (mmi);
                        child_->signal_activate ().connect (sigc::mem_fun (action.get(), &Gtk::Action::activate));
                        child_->show ();
                }
        };
 
        Gtk::Menu      _menu;
 
        bool _scrolling_disabled;
};
 
} /* end namespace */
 
#endif