void UIButton::comp(){
state = _getState(mousePosition, mouseState);
if(state == UIState::UP && callbackPtr != NULL){
return (void)callbackPtr(callbackParam);
}
}
void InterfaceGl::addButton( const std::string &name, const std::function<void ()> &callback, const std::string &optionsStr )
{
std::shared_ptr<std::function<void ()> > callbackPtr( new std::function<void ()>( callback ) );
mButtonCallbacks.push_back( callbackPtr );
TwAddButton( mBar.get(), name.c_str(), implButtonCallback, (void*)callbackPtr.get(), optionsStr.c_str() );
}
