void mouse (int button, int state, int x, int y)
{
switch (button) {
case GLUT_LEFT_BUTTON:
if (state == GLUT_DOWN) {
if (setupMethod == POINTER) {
setupMethod = INTERLEAVED;
setupInterleave();
}
else if (setupMethod == INTERLEAVED) {
setupMethod = POINTER;
setupPointers();
}
glutPostRedisplay();
}
break;
case GLUT_MIDDLE_BUTTON:
case GLUT_RIGHT_BUTTON:
if (state == GLUT_DOWN) {
if (derefMethod == DRAWARRAY)
derefMethod = ARRAYELEMENT;
else if (derefMethod == ARRAYELEMENT)
derefMethod = DRAWELEMENTS;
else if (derefMethod == DRAWELEMENTS)
derefMethod = DRAWARRAY;
glutPostRedisplay();
}
break;
default:
break;
}
}
static void init(void)
{
glClearColor(0.0, 0.0, 0.0, 1.0);
glShadeModel(GL_SMOOTH);
switch (setupMethod) {
case POINTER:
setupPointers();
break;
case INTERLEAVED:
setupInterleave();
break;
}
}