STAPsDerivedGLUTCallbackFns.cpp

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/******************************************************************************
STAPsDerivedGLUTCallbackFns.cpp

See STAPsGLUTCallbackFns.hpp

SUKITTI PUNAK   (09/10/2010)
UPDATE          (09/10/2010)
******************************************************************************/
#include "STAPsDerivedGLUTCallbackFns.hpp"
// Using Inclusion Model (i.e. definitions are included in declarations)
//                       (this name.cpp is included in name.hpp)
// Each friend is defined directly inside its declaration.

BEGIN_NAMESPACE_TAPs__OpenGL
//=============================================================================
// Constructor(s) and Destructor
//-----------------------------------------------------------------------------
DerivedGLUTCallbackFns::DerivedGLUTCallbackFns ()
{}
//-----------------------------------------------------------------------------
DerivedGLUTCallbackFns::~DerivedGLUTCallbackFns ()
{}
//-----------------------------------------------------------------------------
//=============================================================================
// DisplayFn
//-----------------------------------------------------------------------------
void DerivedGLUTCallbackFns::DisplayFn ()
{   
    glClearColor( 1, 1, 1, 1 );
    glClear( GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT );

    //...

    glutPostRedisplay();
    glutSwapBuffers();
}
//-----------------------------------------------------------------------------
//=============================================================================
// ReshapeFn
//-----------------------------------------------------------------------------
void DerivedGLUTCallbackFns::ReshapeFn ( int width, int height )
{
    /*
    static const float K_FOV_Y = 40;
    static const float K_CANONICAL_SPHERE_RADIUS = sqrt( 3.0f );
    static const float K_PI = 3.1415926535897932384626433832795;
    //-------------------------------------------------------------------
    glViewport( 0, 0, static_cast<GLsizei>(width), static_cast<GLsizei>(height) );
    //-------------------------------------------------------------------
    // Compute the viewing parameters based on a fixed fov and viewing
    // sphere enclosing a canonical box centered at the origin
    //T nearDist = K_CANONICAL_SPHERE_RADIUS / tan( (K_FOV_Y/2.0) * K_PI / 180.0 );
    //T farDist  = nearDist + 2.0 * K_CANONICAL_SPHERE_RADIUS;
    float nearDist = 1;
    float farDist  = 100;
    //std::cout << "nearDist: " << nearDist << " farDist: " << farDist << std::endl;
    float aspect   = static_cast<float>(width) / static_cast<float>(height);
    //-------------------------------------------------------------------
    glMatrixMode( GL_PROJECTION );
    glLoadIdentity();
    gluPerspective( K_FOV_Y, aspect, nearDist, farDist );
    */ 
}
//-----------------------------------------------------------------------------
//=============================================================================
// KeyboardFn
//-----------------------------------------------------------------------------
void DerivedGLUTCallbackFns::KeyboardFn ( unsigned char key, int x, int y )
{
    //----------------------------------------------------------------
    switch ( key ) {
        case 'q':
        case 'Q':
        case 27:        // ESC for exit the program
            exit( EXIT_SUCCESS );
            break;
    }
    //----------------------------------------------------------------
    //glutPostRedisplay();
    //----------------------------------------------------------------
}
//-----------------------------------------------------------------------------
//=============================================================================
// SpecialFn
//-----------------------------------------------------------------------------
void DerivedGLUTCallbackFns::SpecialFn ( int key, int x, int y )
{
    //----------------------------------------------------------------
    switch ( key ) {
        case GLUT_KEY_F1:
            break;
        case GLUT_KEY_UP:
            break;
        case GLUT_KEY_DOWN:
            break;
        case GLUT_KEY_LEFT:
            break;
        case GLUT_KEY_RIGHT:
            break;
    }
    //----------------------------------------------------------------
    //glutPostRedisplay();
    //----------------------------------------------------------------
}
//-----------------------------------------------------------------------------
//=============================================================================
// MouseFn
//-----------------------------------------------------------------------------
void DerivedGLUTCallbackFns::MouseFn ( int button, int state, int x, int y )
{
    //----------------------------------------------------------------
    if ( state == GLUT_DOWN ) {
        //------------------------------------------------------
        if ( button == GLUT_LEFT_BUTTON ) {
        }
        //------------------------------------------------------
        else if ( button == GLUT_MIDDLE_BUTTON ) {
        }
        //------------------------------------------------------
        else if ( button == GLUT_RIGHT_BUTTON ) {
        }
    }
    else if ( state == GLUT_UP ) {
        //------------------------------------------------------
        if ( button == GLUT_LEFT_BUTTON ) {
        }
        //------------------------------------------------------
        else if ( button == GLUT_MIDDLE_BUTTON ) {
        }
        //------------------------------------------------------
        else if ( button == GLUT_RIGHT_BUTTON ) {
        }
    }
    //----------------------------------------------------------------
}
//-----------------------------------------------------------------------------
//=============================================================================
// MotionFn
//-----------------------------------------------------------------------------
void DerivedGLUTCallbackFns::MotionFn ( int x, int y )
{
    //----------------------------------------------------------------
    //----------------------------------------------------------------
}
//-----------------------------------------------------------------------------
//=============================================================================
// IdleFn
//-----------------------------------------------------------------------------
void DerivedGLUTCallbackFns::IdleFn ()
{
    //----------------------------------------------------------------
    //----------------------------------------------------------------
}
//-----------------------------------------------------------------------------
//=============================================================================
// Initialize
//-----------------------------------------------------------------------------
void DerivedGLUTCallbackFns::Initialize ()
{
    //----------------------------------------------------------------
    //----------------------------------------------------------------
}
//-----------------------------------------------------------------------------
//=============================================================================
END_NAMESPACE_TAPs__OpenGL
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