TAPsOpenGLUsefulObjs.hpp

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/******************************************************************************
TAPsOpenGLUsefulObjs.hpp

Useful Objects drawed by OpenGL

SUKITTI PUNAK   (07/10/2005)
UPDATE          (11/28/2006)
******************************************************************************/
#ifndef TAPs_OPENGL_USEFUL_OBJS_HPP
#define TAPs_OPENGL_USEFUL_OBJS_HPP

#include "TAPsOpenGLFns.hpp"

//===================================================================
// External OpenGL Model(s)
//-------------------------------------------------------------------
#include "TAPsOpenGLLightModel.hpp"     // OpenGL Light  Model
#include "TAPsOpenGLCameraModel.hpp"    // OpenGL Camera Model
//-------------------------------------------------------------------
//===================================================================

BEGIN_NAMESPACE_TAPs__OpenGL
//=============================================================================
template <typename T>
class OpenGLUsefulObj {
//-----------------------------------------------------------------------------
public:
    //---------------------------------------------------------------
    //OpenGLUsefulObj ();
    OpenGLUsefulObj (
        GLenum drawStyle, 
        GLint iNumSlices, 
        GLint iNumStacks, 
        Vector4<T> & vMaterialColor 
    );
    OpenGLUsefulObj (
        GLenum drawStyle = GLU_FILL, 
        GLint iNumSlices = 8, 
        GLint iNumStacks = 8, 
        GLfloat r = 0.5f, 
        GLfloat g = 0.5f, 
        GLfloat b = 0.5f, 
        GLfloat a = 1.0f 
    );
    //---------------------------------------------------------------
    inline void GenDisplayList ( 
        GLenum drawStyle, 
        GLint iNumSlices, 
        GLint iNumStacks, 
        Vector4<T> & vMaterialColor 
    );
    //---------------------------------------------------------------
    void GenDisplayList ( 
        GLenum drawStyle = GLU_FILL, 
        GLint iNumSlices = 15, 
        GLint iNumStacks = 15, 
        GLfloat r = 0.5f, 
        GLfloat g = 0.5f, 
        GLfloat b = 0.5f, 
        GLfloat a = 1.0f 
    );
    //=========================================================================
    // Sphere
    void DrawSphere ();
    //-------------------------------------------------------------------------
    void DrawSphere ( T scale );             // x, y, z have the same scale
    void DrawSphere ( T sx, T sy, T sz );    // individual scale
    void DrawSphere ( Vector3<T> & vScale ); // individual scale
    //-------------------------------------------------------------------------
    //=========================================================================
    // Cylinder
    //-------------------------------------------------------------------------
    void DrawCylinder ();
    void DrawCylinder ( Vector3<T> & vDirection );
    void DrawCylinder ( Vector3<T> & vDirection, Vector3<T> & vScale );
    //-------------------------------------------------------------------------
    //=========================================================================
    // Cone
    //-------------------------------------------------------------------------
    void DrawCone ();
    void DrawCone ( Vector3<T> & vDirection );
    void DrawCone ( Vector3<T> & vDirection, Vector3<T> & vScale );
    //-------------------------------------------------------------------------
    //=========================================================================
    // Cube
    //-------------------------------------------------------------------------
    void DrawCube ();
    void DrawCube ( Vector3<T> & vScale );
    //void DrawCube ( Vector3<T> & vDirection );
    void DrawCube ( Vector3<T> & vDirection, Vector3<T> & vScale );
    //-------------------------------------------------------------------------
    //=========================================================================
    //-------------------------------------------------------------------------
    static void DrawOneHeadArrow ();
    /*
     * Use DrawOneHeadArrow to draw a head-arrow with the given direction
     * with scaled by the length.
     */
    static void DrawOneHeadArrow ( const Vector3<T> & direction, T length = 1 );
    static void DrawOneHeadArrow ( const Vector3<T> & startPos, 
                                   const Vector3<T> & endPos );
    //-------------------------------------------------------------------------
    //=========================================================================
    static void DrawWorldCoordinateAxes ();
    //-------------------------------------------------------------------------
    //=========================================================================
    // Get/Set Functions
    //-------------------------------------------------------------------------
    Vector4<T> & GetColor () const
    { return Vector4<T>( 
        m_afMaterialColor[0], 
        m_afMaterialColor[1], 
        m_afMaterialColor[2], 
        m_afMaterialColor[3] );
    }
    void SetColor( Vector4<T> & vColor )
    {
        m_afMaterialColor[0] = vColor[0];
        m_afMaterialColor[1] = vColor[1];
        m_afMaterialColor[2] = vColor[2];
        m_afMaterialColor[3] = vColor[3];
    }
    void SetColor( GLfloat r, GLfloat g, GLfloat b, GLfloat a = 1.0f )
    {
        m_afMaterialColor[0] = r;
        m_afMaterialColor[1] = g;
        m_afMaterialColor[2] = b;
        m_afMaterialColor[3] = a;
    }
    //-------------------------------------------------------------------------
    //=========================================================================
    //-------------------------------------------------------------------------
protected:
    // Helper functions for drawing sphere, cylinder, and cone.
    inline void DrawCallListNo ( int i );
    inline void DrawCallListNo ( int i, Vector3<T> & vDirection );
    inline void DrawCallListNo ( int i, 
        Vector3<T> & vDirection, Vector3<T> & vScale );
    //-------------------------------------------------------------------------
//-----------------------------------------------------------------------------
protected:
    //-------------------------------------------------------------------------
    // Data Members
    static GLUquadricObj *  g_pQuadricObj;  // a pointer to a glu quardric object
    GLuint      m_uiDisplayList;            // display list of objects
    GLsizei     m_iDisplayListSize;         // display list size
    GLfloat     m_afMaterialColor[4];       // material color
    // m_uiDisplayList + 00 --> Unit Sphere   (radius is one)
    // m_uiDisplayList + 01 --> Unit Cylinder (radius and height is one from z=0 to z=1)
    // m_uiDisplayList + 02 --> Unit Cone     (base radius and height is one from z=0 to z=1)
    // m_uiDisplayList + 03 --> Unit Cube     (a unit cube centered at (0,0,0))
    //-------------------------------------------------------------------------
};  // END CLASS OpenGLUsefulObj

//=============================================================================
END_NAMESPACE_TAPs__OpenGL
//-----------------------------------------------------------------------------
// Include definition if TAPs_USE_EXPORT is not defined
//#if !defined( TAPs_USE_EXPORT )
    #include "TAPsOpenGLUsefulObjs.cpp"
//#endif
//-----------------------------------------------------------------------------
#endif
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