OsgUniformBase.h

// This file is a part of the OpenSurgSim project.
// Copyright 2013, SimQuest Solutions Inc.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
//     http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.

#ifndef SURGSIM_GRAPHICS_OSGUNIFORMBASE_H
#define SURGSIM_GRAPHICS_OSGUNIFORMBASE_H

#include "SurgSim/Graphics/Uniform.h"

#include <osg/StateSet>
#include <osg/Uniform>

namespace YAML
{
class Node;
}

namespace SurgSim
{

namespace Graphics
{

class OsgUniformBase : public virtual UniformBase
{
public:
    const std::string& getName() const
    {
        return m_uniform->getName();
    }

    virtual void set(const YAML::Node& node) = 0;

    virtual void addToStateSet(osg::StateSet* stateSet);

    virtual void removeFromStateSet(osg::StateSet* stateSet);

    osg::ref_ptr<osg::Uniform> getOsgUniform() const
    {
        return m_uniform;
    }


    virtual const std::string getGlslType() const = 0;

protected:
    explicit OsgUniformBase(const std::string& name);

    osg::ref_ptr<osg::Uniform> m_uniform;
};

};  // namespace Graphics

};  // namespace SurgSim

namespace YAML
{
template<>
struct convert<std::shared_ptr<SurgSim::Graphics::OsgUniformBase>>
{
    static Node encode(const std::shared_ptr<SurgSim::Graphics::OsgUniformBase> rhs);
    static bool decode(const Node& node, std::shared_ptr<SurgSim::Graphics::OsgUniformBase>& rhs); //NOLINT
};

};


#endif  // SURGSIM_GRAPHICS_OSGUNIFORMBASE_H