void GraphicsNode::
updateSizeHints() {
qreal min_width = 0.0;// _hard_min_width;
qreal min_height = _top_margin + _bottom_margin; // _hard_min_height;
// sinks
for (size_t i = 0; i < _sinks.size(); i++) {
auto s = _sinks[i];
auto size = s->getMinimalSize();
min_height += size.height() + _item_padding;
min_width = std::max(size.width(), min_width);
}
// central widget
if (_central_proxy != nullptr) {
auto wgt = _central_proxy->widget();
if (wgt) {
// only take the size hint if the value is valid, and if
// the minimumSize is not set (similar to
// QWidget/QLayout standard behavior
auto sh = wgt->minimumSizeHint();
auto sz = wgt->minimumSize();
if (sh.isValid()) {
if (sz.height() > 0)
min_height += sz.height();
else
min_height += sh.height();
if (sz.width() > 0)
min_width = std::max(qreal(sz.width()) + 2.0*_lr_padding, min_width);
else
min_width = std::max(qreal(sh.width()) + 2.0*_lr_padding, min_width);
} else {
min_height += sh.height();
min_width = std::max(qreal(sh.width()) + 2.0*_lr_padding, min_width);
}
}
}
// sources
for (size_t i = 0; i < _sources.size(); i++) {
auto s = _sources[i];
auto size = s->getMinimalSize();
min_height += size.height() + _item_padding;
min_width = std::max(size.width(), min_width);
}
_min_width = std::max(min_width, _hard_min_width);
_min_height = std::max(min_height, _hard_min_height);
}
QSizeF GraphicsNodeSocket::
getSize() const {
return getMinimalSize();
}
glm::vec2 Widget::getPreferredSize()
{
return getMinimalSize();
}