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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 OSGEARTH_UTIL_EXAMPLE_RESOURCES_H
#define OSGEARTH_UTIL_EXAMPLE_RESOURCES_H 1

#include <osgEarthUtil/Common>
#include <osgEarthUtil/Controls>
#include <osgEarthUtil/SkyNode>
#include <osgEarthUtil/EarthManipulator>
#include <osgEarthDrivers/ocean_surface/OceanSurface>
#include <osgEarth/Viewpoint>

#include <osg/ArgumentParser>
#include <osgViewer/View>


/**
 * This is a collection of resources used by the osgEarth example applications.
 */
namespace osgEarth { namespace Util
{
    using namespace osgEarth;
    using namespace osgEarth::Util::Controls;
    using namespace osgEarth::Drivers;

    /**
     * Parses a set of built-in example arguments. Any Controls created by parsing
     * command-line parameters will appear in the lower-left corner of the display.
     */
    class OSGEARTHUTIL_EXPORT MapNodeHelper
    {
    public:
        /**
         * Loads a map file and processes all the built-in example command line
         * arguemnts and XML externals.
         */
        osg::Group* load(
            osg::ArgumentParser& args, 
            osgViewer::View*     view,
            Control*             userControl =0L ) const;

        /**
         * Takes an existing map node and processes all the built-in example command
         * line arguments and mapNode externals.
         */
        void parse(
            MapNode*             mapNode,
            osg::ArgumentParser& args,
            osgViewer::View*     view,
            osg::Group*          parentGroup =0L,
            Control*             userControl =0L) const;

        /**
         * Configures a view with a stock set of event handlers that are useful
         * for demos, and performs some other common view configuation for osgEarth.
         */
        void configureView( osgViewer::View* view ) const;

        /**
         * Returns a usage string
         */
        std::string usage() const;
    };


    /**
     * Creates a UI Control with a list of clickable viewpoints.
     */
    class OSGEARTHUTIL_EXPORT ViewpointControlFactory
    {
    public:
        Control* create(
            const std::vector<Viewpoint>& list, 
            osgViewer::View*              view) const;
    };


    /**
     * Creates UI controls that show the map coordinates under the mouse
     */
    class OSGEARTHUTIL_EXPORT MouseCoordsControlFactory
    {
    public:
        Control* create( 
            MapNode*         mapNode, 
            osgViewer::View* view ) const;
    };


    /**
     * Creates a UI Control reflecting all the named Annotations found in a
     * scene graph.
     */
    class OSGEARTHUTIL_EXPORT AnnotationGraphControlFactory
    {
    public:
        Control* create( 
            osg::Node*       node,
            osgViewer::View* view) const;
    };


    /**
     * Creates a set of controls for manipulating the Sky model.
     */
    class OSGEARTHUTIL_EXPORT SkyControlFactory
    {
    public:
        Control* create( 
            SkyNode*         sky,
            osgViewer::View* view ) const;
    };


    /**
     * Creates a set of controls for manipulating the Ocean surface model.
     */
    class OSGEARTHUTIL_EXPORT OceanControlFactory
    {
    public:
        Control* create( 
            OceanSurfaceNode* ocean, 
            osgViewer::View*  view ) const;
    };

} } // namespace osgEarth::Util

#endif // OSGEARTH_UTIL_EXAMPLE_RESOURCES_H