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Ported test_support_material.cpp from upstream slic3r.

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Ported extension of ExtrusionEntityCollection::flatten() to disable
flattening of no_sort() collections.
This commit is contained in:
bubnikv 2019-10-17 19:09:24 +02:00
parent f9710eff08
commit 98a71a557b
12 changed files with 250 additions and 143 deletions
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22
src/libslic3r/ExtrusionEntityCollection.cpp
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@ -126,18 +126,26 @@ size_t ExtrusionEntityCollection::items_count() const
}
// Returns a single vector of pointers to all non-collection items contained in this one.
ExtrusionEntityCollection ExtrusionEntityCollection::flatten() const
ExtrusionEntityCollection ExtrusionEntityCollection::flatten(bool preserve_ordering) const
{
struct Flatten {
Flatten(bool preserve_ordering) : preserve_ordering(preserve_ordering) {}
ExtrusionEntityCollection out;
bool preserve_ordering;
void recursive_do(const ExtrusionEntityCollection &collection) {
for (const ExtrusionEntity* entity : collection.entities)
if (entity->is_collection())
this->recursive_do(*static_cast<const ExtrusionEntityCollection*>(entity));
else
out.append(*entity);
if (collection.no_sort && preserve_ordering) {
// Don't flatten whatever happens below this level.
out.append(collection);
} else {
for (const ExtrusionEntity *entity : collection.entities)
if (entity->is_collection())
this->recursive_do(*static_cast<const ExtrusionEntityCollection*>(entity));
else
out.append(*entity);
}
}
} flatten;
} flatten(preserve_ordering);
flatten.recursive_do(*this);
return flatten.out;
}