/* -*-c++-*- */
/* osgEarth - Dynamic map generation toolkit for OpenSceneGraph
* Copyright 2015 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.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
* IN THE SOFTWARE.
*
* 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_ANNOTATION_HIGHLIGHT_DECORATION_H
#define OSGEARTH_ANNOTATION_HIGHLIGHT_DECORATION_H 1

#include <osgEarthAnnotation/Decoration>
#include <osg/Uniform>

namespace osgEarth { namespace Annotation
{	
    using namespace osgEarth;

    /**
     * Decoration technique that highlights the geometry.
     */
    class OSGEARTHANNO_EXPORT HighlightDecoration : public Decoration
    {
    public:
        HighlightDecoration(const osg::Vec4f& color =osg::Vec4f(1,1,0,0.5));

        virtual ~HighlightDecoration() { }

        virtual Decoration* clone() const { return new HighlightDecoration(_color); }

        /** Hightlight color (mixes with alpha) */
        void setColor(const osg::Vec4f& color);
        const osg::Vec4f& getColor() const { return _color; }
        
    public: // Decoration interface

        virtual bool apply(class AnnotationNode& node, bool enable);

    private:
        bool                         _supported;
        osg::Vec4f                   _color;
        osg::ref_ptr<osg::Uniform>   _colorUniform;
    };

} } // namespace osgEarth::Annotation

#endif //OSGEARTH_ANNOTATION_HIGHLIGHT_DECORATION_H