action_model.h

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/*
 * Copyright (C) 2019 Johannes Mueller <github@johannes-mueller.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.
 */
 
#include <string>
 
#include <gtkmm/treestore.h>
#include <gtkmm/treemodelcolumn.h>
 
#include "gtkmm2ext/visibility.h"
 
namespace Gtk
{
class ComboBox;
}
 
/*
  The singleton ActionModel provides a Gtk::Treestore of all actions known to
  ardour.
 
  To be used for example by surface control editors to implement action bindings.
*/
 
namespace ActionManager {
 
class LIBGTKMM2EXT_API ActionModel
{
public:
        static const ActionModel& instance ();
 
        const Glib::RefPtr<Gtk::TreeStore> model () const { return _model; }
 
        const Gtk::TreeModelColumn<std::string>& name () const { return _columns.name; }
        const Gtk::TreeModelColumn<std::string>& path () const { return _columns.path; }
 
        struct Columns : public Gtk::TreeModel::ColumnRecord {
                Columns() {
                        add (name);
                        add (path);
                }
                Gtk::TreeModelColumn<std::string> name;
                Gtk::TreeModelColumn<std::string> path;
        };
 
        const Columns& columns() const { return _columns; }
 
        void build_action_combo (Gtk::ComboBox& cb, std::string const& current_action) const;
        void build_custom_action_combo (Gtk::ComboBox& cb,
                                        const std::vector<std::pair<std::string,std::string> >& actions,
                                        const std::string& current_action) const;
 
private:
        ActionModel ();
 
        bool find_action_in_model (const Gtk::TreeModel::iterator& iter, std::string const & action_path, Gtk::TreeModel::iterator* found) const;
 
        const Columns _columns;
        Glib::RefPtr<Gtk::TreeStore> _model;
};
 
}