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Modifying the fit logic for issue #2326 

The fit box is computed now the following way
1. Compute the bounding box of "visible" parts
   (i.e. treating empty cells as empty)
2. If that bounding box is empty, compute the
   bounding box using the previous scheme,
   where empty cells are treated as point-like
   with a single point at their origin
This commit is contained in:
Matthias Koefferlein 2026-04-11 17:34:15 +02:00
parent 63a948a77b
commit deae8c68b4
1 changed files with 17 additions and 1 deletions
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18
src/laybasic/laybasic/layLayoutViewBase.cc
View File

@ -3912,18 +3912,34 @@ LayoutViewBase::full_box () const
db::DBox bbox;
auto tv = cv_transform_variants_with_empty ();
// first, use the bounding box of actual drawn layout (issue #2326)
for (auto i = tv.begin (); i != tv.end (); ++i) {
const lay::CellView &cv = cellview (i->second);
if (cv.is_valid ()) {
double dbu = cv->layout ().dbu ();
bbox += (i->first * db::CplxTrans (dbu) * cv.context_trans ()) * cv.cell ()->bbox_with_empty ();
bbox += (i->first * db::CplxTrans (dbu) * cv.context_trans ()) * cv.cell ()->bbox ();
}
}
// if that is empty, use the bounding box computed while treating empty cells as
// dots at the origin of the cells
if (bbox.empty ()) {
for (auto i = tv.begin (); i != tv.end (); ++i) {
const lay::CellView &cv = cellview (i->second);
if (cv.is_valid ()) {
double dbu = cv->layout ().dbu ();
bbox += (i->first * db::CplxTrans (dbu) * cv.context_trans ()) * cv.cell ()->bbox_with_empty ();
}
}
}
// add annotations
for (lay::AnnotationShapes::iterator a = annotation_shapes ().begin (); ! a.at_end (); ++a) {
bbox += a->box ();
}
// produce a default if still empty and enlarge by some small amount to have a border
if (bbox.empty ()) {
bbox = db::DBox (0, 0, 0, 0); // default box
} else {