GLAttrib.h

/********************************************************************/
/* Copyright (c) 2015 DG Technologies Inc. and Yuzi Mizuno          */
/* All rights reserved.                                             */
/********************************************************************/

#ifndef _MGGLAttrib_HH_
#define _MGGLAttrib_HH_

#include <afxwin.h>
#include <gl\gl.h>
#include <iosfwd>
#include "mg/MGCL.h"
#include "mg/Attrib.h"

//
//Define MGGLAttrib Class.

class MGOfstream;
class MGIfstream;
class MGColor;
class MGLight;
class MGRenderAttr;
class MGLineStipple;
class MGLights;
class MGLineWidth;


class MG_DLL_DECLR MGGLAttrib:public MGAttrib{

public:

enum FLAG{
    UNDEFINED=-3,
    DISABLED=-2
};

enum ATTRIB_MASK{
    CURRENT_BIT= GL_CURRENT_BIT,
    POINT_BIT= GL_POINT_BIT,
    LINE_BIT= GL_LINE_BIT,
    POLYGON_BIT= GL_POLYGON_BIT,
    POLYGON_STIPPLE_BIT= GL_POLYGON_STIPPLE_BIT,
    PIXEL_MODE_BIT= GL_PIXEL_MODE_BIT,
    LIGHTING_BIT= GL_LIGHTING_BIT,
    FOG_BIT= GL_FOG_BIT,
    DEPTH_BUFFER_BIT= GL_DEPTH_BUFFER_BIT,
    ACCUM_BUFFER_BIT= GL_ACCUM_BUFFER_BIT,
    STENCIL_BUFFER_BIT= GL_STENCIL_BUFFER_BIT,
    VIEWPORT_BIT= GL_VIEWPORT_BIT,
    TRANSFORM_BIT= GL_TRANSFORM_BIT,
    ENABLE_BIT= GL_ENABLE_BIT,
    COLOR_BUFFER_BIT= GL_COLOR_BUFFER_BIT,
    HINT_BIT= GL_HINT_BIT,
    EVAL_BIT= GL_EVAL_BIT,
    LIST_BIT= GL_LIST_BIT,
    TEXTURE_BIT= GL_TEXTURE_BIT,
    SCISSOR_BIT= GL_SCISSOR_BIT
};

MGGLAttrib(int flag=UNDEFINED):m_flag(flag){;};

virtual MGGLAttrib& operator=(const MGGLAttrib& gel2){set_glattrib(gel2);return *this;};


virtual MGGLAttrib* clone()const=0;

bool undefined()const{return m_flag==UNDEFINED;};
bool defined()const{return m_flag!=UNDEFINED;};
bool disabled()const{return m_flag==DISABLED;};
bool enabled()const{return m_flag!=UNDEFINED && m_flag!=DISABLED;};

void set_undefined(){m_flag=UNDEFINED;};
void set_disabled(){m_flag=DISABLED;};

int data()const{return m_flag;};
int& data(){return m_flag;};

virtual void drawAttrib(
    mgVBO& vbo,
    bool no_color=false 
)const=0;

virtual bool is_highlight_attrib()const{return false;};

virtual void render(mgVBO& vbo)const=0;

virtual void set_draw_attrib_mask(unsigned int& mask)const=0;

virtual void reset_draw_attrib_mask(unsigned int& mask)const=0;

virtual void set_render_attrib_mask(unsigned int& mask)const=0;

virtual void reset_render_attrib_mask(unsigned int& mask)const=0;

virtual long identify_type() const{return MGGLATTRIBUTE_TID;};

virtual void ReadMembers(MGIfstream& buf);
virtual void WriteMembers(MGOfstream& buf)const;

virtual std::ostream& out(std::ostream&) const;

bool same_type(const MGGLAttrib& at2)const;

protected:

int m_flag; 

MGGLAttrib& set_glattrib(const MGGLAttrib& gel2);

};

void set_Amask(unsigned int& mask, MGGLAttrib::ATTRIB_MASK bit);
void reset_Amask(unsigned int& mask, MGGLAttrib::ATTRIB_MASK bit);

MGGLAttrib* MGNullGLAttrib(long TID);
 // end of GLAttrib group
#endif //#ifndef _MGGLAttrib_HH_