/* -*-c++-*- OpenSceneGraph - Copyright (C) 1998-2006 Robert Osfield
 *
 * This library is open source and may be redistributed and/or modified under
 * the terms of the OpenSceneGraph Public License (OSGPL) version 0.0 or
 * (at your option) any later version.  The full license is in LICENSE file
 * included with this distribution, and on the openscenegraph.org website.
 *
 * This library 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
 * OpenSceneGraph Public License for more details.
*/

#ifndef OSGVIEWER_CONFIG
#define OSGVIEWER_CONFIG 1

#include <osg/Object>
#include <osgViewer/Export>

namespace osgViewer {

// forward declare
class View;
    
/** Config base class for encapsulating view configuration.*/
class Config : public osg::Object
{
    public:

        Config() {}

        Config(const Config& rhs, const osg::CopyOp& copyop=osg::CopyOp::SHALLOW_COPY) : osg::Object(rhs,copyop) {}

        META_Object(osgViewer,Config);
        
        /** configure method that is overridden by Config subclasses.*/
        virtual void configure(osgViewer::View& /*view*/) const {}
};

class OSGVIEWER_EXPORT ViewAcrossAllScreens : public Config
{
    public:
        
        ViewAcrossAllScreens() {}
        ViewAcrossAllScreens(const ViewAcrossAllScreens& rhs, const osg::CopyOp& copyop=osg::CopyOp::SHALLOW_COPY): Config(rhs,copyop) {}
        
        META_Object(osgViewer,ViewAcrossAllScreens);
        
        /** configure method that is overridden by Config subclasses.*/
        virtual void configure(osgViewer::View& view) const;
};

/** single camera on a single window.*/
class OSGVIEWER_EXPORT ViewInWindow : public Config
{
    public:
        
        ViewInWindow():_x(0),_y(0),_width(-1),_height(-1),_screenNum(0) {}
        ViewInWindow(int x, int y, int width, int height, unsigned int screenNum=0):_x(x),_y(y),_width(width),_height(height),_screenNum(screenNum) {}
        ViewInWindow(const ViewInWindow& rhs, const osg::CopyOp& copyop=osg::CopyOp::SHALLOW_COPY):Config(rhs,copyop), _x(rhs._x),_y(rhs._y),_width(rhs._width),_height(rhs._height),_screenNum(rhs._screenNum) {}
        
        META_Object(osgViewer,ViewInWindow);
        
        /** configure method that is overridden by Config subclasses.*/
        virtual void configure(osgViewer::View& view) const;
        
        void setX(int x) { _x = x; }
        int getX() const { return _x; }
        
        void setY(int y) { _y = y; }
        int getY() const { return _y; }
        
        void setWidth(int w) { _width = w; }
        int getWidth() const { return _width; }

        void setHeight(int h) { _height = h; }
        int getHeight() const { return _height; }

        void setScreenNum(unsigned int sn) { _screenNum = sn; }
        unsigned int getScreenNum() const { return _screenNum; }
        
    protected:
        
        int _x, _y, _width, _height;
        unsigned int _screenNum;
};

#if 0

/** single camera associated with a single full screen GraphicsWindow.*/
class OSGVIEWER_EXPORT ViewOnSingleScreen : public Config
{
    public:
        
        ViewOnSingleScreen(unsigned int screenNum=0);
        ViewOnSingleScreen(const ViewOnSingleScreen& rhs, const osg::CopyOp& copyop=osg::CopyOp::SHALLOW_COPY);
        
        META_Object(osgViewer,ViewOnSingleScreen);
        
        /** configure method that is overridden by Config subclasses.*/
        virtual void configure(osgViewer::View& view);

        void setScreenNum(int sn) { _screenNum = sn; }
        int getScreenNum() const { return _screenNum; }
        
    protected:
        
        unsigned int _screenNum;
};

/** spherical display using 6 slave cameras rendering the 6 sides of a cube map, and 7th camera doing distortion correction to present on a spherical display.*/
class OSGVIEWER_EXPORT ViewFor3DSphericalDisplay : public Config
{
    public:
        
        ViewFor3DSphericalDisplay(double radius=1.0, double collar=0.45, unsigned int screenNum=0, osg::Image* intensityMap=0, const osg::Matrixd& projectorMatrix = osg::Matrixd());
        ViewFor3DSphericalDisplay(const ViewFor3DSphericalDisplay& rhs, const osg::CopyOp& copyop=osg::CopyOp::SHALLOW_COPY);
        
        META_Object(osgViewer,ViewOnSingleScreen);
        
        /** configure method that is overridden by Config subclasses.*/
        virtual void configure(osgViewer::View& view);
        
        void setRadius(double r) { _radius = r; }
        double getRadius() const { return _radius; }
        
        void setCollar(double r) { _collar = r; }
        double getCollar() const { return _collar; }
        
        void setScreenNum(unsigned int n) { _screenNum = n; }
        unsigned int getScreenNum() const { return _screenNum; }
        
        void setIntensityMap(osg::Image* im) { _intensityMap = im; }
        osg::Image* getIntensityMap() const { return _intensityMap; }
        
        void setProjectionMatrix(const osg::Matrixd& m) { _intensityMap = m; }
        osg::Matrixd& getIntensityMap() const { return _intensityMap; }
        
    protected:
        
        double _radius;
        double _collar;
        unsigned int _screenNum;
        osg::ref_ref<osg::Image> _intensityMap;
        const osg::Matrixd _projectorMatrix;
};

/** spherical display by rendering main scene to a panoramic 2:1 texture and then doing distortion correction to present onto a spherical display.*/
class OSGVIEWER_EXPORT ViewForPanoramicSphericalDisplay : public Config
{
    public:
        
        ViewForPanoramicSphericalDisplay(double radius=1.0, double collar=0.45, unsigned int screenNum=0, osg::Image* intensityMap=0, const osg::Matrixd& projectorMatrix = osg::Matrixd());
        ViewForPanoramicSphericalDisplay(const ViewForPanoramicSphericalDisplay& rhs, const osg::CopyOp& copyop=osg::CopyOp::SHALLOW_COPY);
        
        META_Object(osgViewer,ViewOnSingleScreen);
        
        /** configure method that is overridden by Config subclasses.*/
        virtual void configure(osgViewer::View& view);
        
        void setRadius(double r) { _radius = r; }
        double getRadius() const { return _radius; }
        
        void setCollar(double r) { _collar = r; }
        double getCollar() const { return _collar; }
        
        void setScreenNum(unsigned int n) { _screenNum = n; }
        unsigned int getScreenNum() const { return _screenNum; }
        
        void setIntensityMap(osg::Image* im) { _intensityMap = im; }
        osg::Image* getIntensityMap() const { return _intensityMap; }
        
        void setProjectionMatrix(const osg::Matrixd& m) { _intensityMap = m; }
        osg::Matrixd& getIntensityMap() const { return _intensityMap; }
        
    protected:
        
        double _radius;
        double _collar;
        unsigned int _screenNum;
        osg::ref_ref<osg::Image> _intensityMap;
        const osg::Matrixd _projectorMatrix;
};

/** autostereoscopic Philips WoWvx display.*/
class OSGVIEWER_EXPORT ViewForWoWVxDisplay : public Config
{
    public:
        
        ViewForWoWVxDisplay();
        ViewForWoWVxDisplay(unsigned int screenNum, unsigned char wow_content, unsigned char wow_factor, unsigned char wow_offset, float wow_disparity_Zd, float wow_disparity_vz, float wow_disparity_M, float wow_disparity_C);
        ViewForWoWVxDisplay(const ViewForWoWVxDisplay& rhs, const osg::CopyOp& copyop=osg::CopyOp::SHALLOW_COPY);
        
        META_Object(osgViewer,ViewForWoWVxDisplay);
        
        /** configure method that is overridden by Config subclasses.*/
        virtual void configure(osgViewer::View& view);
        
        void setScreenNum(unsigned int n) { _screenNum = n; }
        unsigned int getScreenNum() const { return _screenNum; }

        void set(unsigned char c) { _wow_content = c; }
        double get() const { return _wow_content; }

        void set(unsigned char c) { _wow_factor = c; }
        double get() const { return _wow_factor; }

        void set(unsigned char c) { _wow_offset = c; }
        double get() const { return _wow_offset; }

        void setWowDisparityZD(float c) { _wow_disparity_Zd = c; }
        float getWowDisparityZD() const { return _wow_disparity_Zd; }
        
        void setWowDisparityVZ(float c) { _wow_disparity_vz = c; }
        float getWowDisparityVZ() const { return _wow_disparity_vz; }
        
        void setWowDisparityM(float c) { _wow_disparity_M = c; }
        float getWowDisparityM() const { return _wow_disparity_M; }
        
        void setWowDisparityC(float c) { _wow_disparity_C = c; }
        float getWowDisparityC() const { return _wow_disparity_C; }
        
    protected:
    
        unsigned int _screenNum;
        unsigned char _wow_content;
        unsigned char _wow_factor;
        unsigned char _wow_offset;
        float _wow_disparity_Zd;
        float _wow_disparity_vz;
        float _wow_disparity_M;
        float _wow_disparity_C;
};
        
/** Configure view with DepthPartition.*/
class OSGVIEWER_EXPORT DepthPartition : public Config
{
    public:
        
        DepthPartition(DepthPartitionSettings* dsp=0);

        DepthPartition(const ViewForWoWVxDisplay& rhs, const osg::CopyOp& copyop=osg::CopyOp::SHALLOW_COPY);
        
        META_Object(osgViewer,DepthPartition);

        void setDepthPartionSettings(DepthPartitionSettings* dsp) const { _dps = dps; }
        const DepthPartitionSettings* getDepthPartionSettings() const { return _dps; }

        /** for setting up depth partitioning on the specified camera.*/
        bool setUpDepthPartitionForCamera(osg::Camera* cameraToPartition, DepthPartitionSettings* dps=0);

        virtual void configure(osgViewer::View& view);
        
    protected:
};

#endif

}


#endif