~macslow/unity/backported-remote-add-to-5.0

// -*- Mode: C++; indent-tabs-mode: nil; tab-width: 2 -*-

/*

 * Copyright (C) 2011 Canonical Ltd

 *

 * This program is free software: you can redistribute it and/or modify

 * it under the terms of the GNU General Public License version 3 as

 * published by the Free Software Foundation.

 *

 * 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, see <http://www.gnu.org/licenses/>.

 *

 * Authored by: Neil Jagdish Patel <neil.patel@canonical.com>

 */

#ifndef UNITY_LENSES_H

#define UNITY_LENSES_H

#include <sigc++/trackable.h>

#include <sigc++/signal.h>

#include "Lens.h"

namespace unity

{

namespace dash

{

class Lenses : public sigc::trackable, boost::noncopyable

{

public:

  typedef std::vector<Lens::Ptr> LensList;

  /**

   * Get the currently loaded Lenses. This is necessary as some of the consumers

   * of this object employ a lazy-loading technique to reduce the overhead of

   * starting Unity. Therefore, the Lenses may already have been loaded by the time

   * the objects have been initiated (and so just connecting to the signals is not

   * enough)

   */

  virtual LensList GetLenses() const = 0;

  virtual Lens::Ptr GetLens(std::string const& lens_id) const = 0;

  virtual Lens::Ptr GetLensAtIndex(std::size_t index) const = 0;

  nux::ROProperty<std::size_t> count;

  sigc::signal<void, Lens::Ptr&> lens_added;

};

}

}

#endif