void Alignment::UpdateChild() {
Widget::Ptr child = GetChild();
if( !child ) {
return;
}
sf::FloatRect allocation( GetAllocation() );
sf::Vector2f spare_space( allocation.width, allocation.height );
spare_space -= child->GetRequisition();
spare_space.x *= 1.f - GetScale().x;
spare_space.y *= 1.f - GetScale().y;
if( ( spare_space.x < 0 ) || ( spare_space.y < 0 ) ) {
#ifdef SFGUI_DEBUG
std::cerr << "SFGUI warning: Alignment got a smaller allocation than it requested." << std::endl;
return;
#endif
}
allocation.left = spare_space.x * GetAlignment().x;
allocation.top = spare_space.y * GetAlignment().y;
allocation.width -= spare_space.x;
allocation.height -= spare_space.y;
child->SetAllocation( allocation );
}
sf::Vector2f Alignment::CalculateRequisition() {
Widget::Ptr child = GetChild();
if( !child ) {
return sf::Vector2f( 0.f, 0.f );
}
return child->GetRequisition();
}