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/* -*-c++-*- */
/* osgEarth - Dynamic map generation toolkit for OpenSceneGraph
* Copyright 2008-2010 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 OSGEARTHUTIL_ANNOTATION
#define OSGEARTHUTIL_ANNOTATION

#include <osgEarth/MapNode>
#include <osgEarth/GeoMath>
#include <osgEarth/DrapeableNode>
#include <osgEarthFeatures/Feature>
#include <osgEarthFeatures/FeatureNode>
#include <osgEarthSymbology/Geometry>
#include <osgEarthSymbology/Style>
#include <osgEarthUtil/Common>
#include <osgEarthUtil/Controls>
#include <osgEarthUtil/Viewpoint>
#include <osg/MatrixTransform>

namespace osgEarth { namespace Util { namespace Annotation
{       
    using namespace osgEarth;
    using namespace osgEarth::Features;
    using namespace osgEarth::Symbology;
    using namespace osgEarth::Util::Controls;

    class AnnotationData : public osg::Referenced
    {
    public:
        AnnotationData()
            : _viewpoint( 0L ) { }

    public:
        void setName( const std::string& value ) { _name = value; }
        const std::string& getName() const { return _name; }

        void setDescription( const std::string& value ) { _description = value; }
        const std::string& getDescription() const { return _description; }

        void setViewpoint( const Viewpoint& vp ) {
            if ( _viewpoint )
                delete _viewpoint;
            _viewpoint = new Viewpoint(vp);
        }

        const Viewpoint* getViewpoint() const {
            return _viewpoint;
        }

    public:
        virtual ~AnnotationData() {
            if ( _viewpoint )
                delete _viewpoint;
        }

    protected:
        std::string _name;
        std::string _description;
        Viewpoint*  _viewpoint;
    };

    class OSGEARTHUTIL_EXPORT PlacemarkNode : public osg::MatrixTransform
    {
    public:
        PlacemarkNode(
            MapNode*           mapNode,
            const osg::Vec3d&  position,
            osg::Image*        iconImage,
            const std::string& labelText,
            const Style&       style =Style() );

        void setPosition( const osg::Vec3d& mapPosition );

        void setIconImage( osg::Image* image );
        osg::Image* getIconImage() const { return _image.get(); }

        void setText( const std::string& text );
        const std::string& getText() const { return _text; }

        void setStyle( const Style& style );
        const Style& getStyle() const { return _style; }

    private:
        osg::ref_ptr<osg::Image>   _image;
        std::string                _text;
        Style                      _style;

        osg::ref_ptr<Container>    _container;
        osg::ref_ptr<ImageControl> _icon;
        osg::ref_ptr<LabelControl> _label;

        osg::observer_ptr<MapNode> _mapNode;

        void init();
    };

    class OSGEARTHUTIL_EXPORT GeometryNode : public DrapeableNode
    {
    public:
        GeometryNode( Geometry* geom, const Style& style );

        GeometryNode( MapNode* mapNode, Geometry* geom, const Style& style, bool draped =true );

        template<typename T>
        T* getOrCreateParent()
        {
            if ( _parent.valid() )
            {
                return static_cast<T*>( _parent.get() );
            }
            else
            {
                T* p = new T();
                _parent = p;
                if ( getNode() )
                {
                    p->addChild( getNode() );
                    setNode( _parent.get() );
                }
                return p;
            }
        }

    protected:
        void init();

        osg::ref_ptr<Geometry>   _geom;
        Style                    _style;
        osg::ref_ptr<osg::Group> _parent;
    };

    class OSGEARTHUTIL_EXPORT CircleNode : public FeatureNode 
    {
    public:
        CircleNode( 
            MapNode*                mapNode,
            const osg::Vec3d&       center,
            const Linear&           radius,
            const Style&            style,
            bool                    draped      =true,
            unsigned                numSegments =0 );
    };

    class OSGEARTHUTIL_EXPORT EllipseNode : public FeatureNode
    {
    public:
        EllipseNode( 
            MapNode*                mapNode,
            const osg::Vec3d&       center,
            const Linear&           radiusMajor,
            const Linear&           radiusMinor,
            const Angular&          rotationAngle,
            const Style&            style,
            bool                    draped      =true,
            unsigned                numSegments =0 );
    };

} } } // namespace osgEarth::Util::Annotation

#endif //OSGEARTHUTIL_ANNOTATION