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/* -*-c++-*- */
/* osgEarth - Dynamic map generation toolkit for OpenSceneGraph
 * Copyright 2008-2013 Pelican Mapping
 * http://osgearth.org
 *
 * osgEarth is free software; you can redistribute it and/or modify
 * it under the terms of the GNU Lesser 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 Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>
 */
#ifndef OSGEARTHQT_GUIACTIONS_H
#define OSGEARTHQT_GUIACTIONS_H 1

#include <osgEarthQt/Common>
#include <osgEarthQt/Actions>

#include <osgEarth/Viewpoint>
#include <osgEarthUtil/EarthManipulator>

#include <osgViewer/Viewer>

namespace osgEarth { namespace QtGui 
{

  //---------------------------------------------------------------------------
  // SetLayerEnabledAction

  class OSGEARTHQT_EXPORT SetLayerVisibleAction : public Action
  {
  public:
    SetLayerVisibleAction(ViewVector& views, osgEarth::Layer* layer, bool visible) : 
        Action(views), _layer(layer), _visible(visible) { }

    bool doAction( void* sender, DataManager* manager )
    {
      if (!_layer.valid())
        return false;

      osgEarth::TerrainLayer* terrain = dynamic_cast<osgEarth::TerrainLayer*>(_layer.get());
      if (terrain)
      {
        terrain->getProfile()->getLatLongExtent().xMin();
        if (terrain->getVisible() != _visible)
        {
          terrain->setVisible(_visible);
          return true;
        }
      }
      else
      {
        osgEarth::ModelLayer* model = dynamic_cast<osgEarth::ModelLayer*>(_layer.get());
        if (model)
        {
          if (model->getVisible() != _visible)
          {
            model->setVisible(_visible);
            return true;
          }
        }
      }

      return false;
    }

    osgEarth::Layer* getLayer() { return _layer.get(); }

	protected:
    osg::ref_ptr<osgEarth::Layer> _layer;
    bool _visible;
  };


  //---------------------------------------------------------------------------
  // ToggleNodeAction

  class OSGEARTHQT_EXPORT ToggleNodeAction : public Action
  {
  public:
    ToggleNodeAction(osg::Node* node, bool visible): Action(), _node(node), _visible(visible) { }

    bool doAction( void* sender, DataManager* manager )
    {
      if (_node.valid())
      {
        _node->setNodeMask(_visible ? ~0 : 0);
        return true;
      }

      return false;
    }

    osg::Node* getNode() { return _node.get(); }

	protected:
    osg::ref_ptr<osg::Node> _node;
    bool _visible;
  };


  //---------------------------------------------------------------------------
  // SetViewpointAction

  class OSGEARTHQT_EXPORT SetViewpointAction : public Action
  {
  public:
    SetViewpointAction(osgEarth::Viewpoint viewpoint, osgViewer::View* view, double duration=4.5)
      : Action(), _viewpoint(viewpoint), _duration(duration)
    {
      if (view)
        _views.push_back(view);
    }

    SetViewpointAction(osgEarth::Viewpoint viewpoint, const ViewVector& views, double duration=4.5)
      : Action(), _viewpoint(viewpoint), _views(views), _duration(duration) { }

    bool doAction( void* sender, DataManager* manager )
    {
      bool success = false;

      for (ViewVector::iterator it = _views.begin(); it != _views.end(); ++it)
      {
        osgEarth::Util::EarthManipulator* manip = dynamic_cast<osgEarth::Util::EarthManipulator*>((*it)->getCameraManipulator());
        if (manip)
        {
          manip->setViewpoint(_viewpoint, _duration);
          (*it)->requestRedraw();
          success = true;
        }
      }

      return success;
    }

    const osgEarth::Viewpoint& viewpoint() { return _viewpoint; }

  protected:
      osgEarth::Viewpoint _viewpoint;
      ViewVector _views;
      double _duration;
  };

} }

#endif // OSGEARTHQT_GUIACTIONS_H