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#ifndef slic3r_ExtrusionEntityCollection_hpp_
#define slic3r_ExtrusionEntityCollection_hpp_
#include "libslic3r.h"
#include "ExtrusionEntity.hpp"
namespace Slic3r {
class ExtrusionEntityCollection : public ExtrusionEntity
{
public:
ExtrusionEntityCollection* clone() const;
ExtrusionEntitiesPtr entities; // we own these entities
std::vector<size_t> orig_indices; // handy for XS
bool no_sort;
ExtrusionEntityCollection(): no_sort(false) {};
ExtrusionEntityCollection(const ExtrusionEntityCollection &other) : orig_indices(other.orig_indices), no_sort(other.no_sort) { this->append(other.entities); }
ExtrusionEntityCollection(ExtrusionEntityCollection &&other) : entities(std::move(other.entities)), orig_indices(std::move(other.orig_indices)), no_sort(other.no_sort) {}
explicit ExtrusionEntityCollection(const ExtrusionPaths &paths);
ExtrusionEntityCollection& operator=(const ExtrusionEntityCollection &other);
ExtrusionEntityCollection& operator=(ExtrusionEntityCollection &&other)
{ this->entities = std::move(other.entities); this->orig_indices = std::move(other.orig_indices); this->no_sort = other.no_sort; return *this; }
~ExtrusionEntityCollection() { clear(); }
explicit operator ExtrusionPaths() const;
bool is_collection() const { return true; };
ExtrusionRole role() const override {
ExtrusionRole out = erNone;
for (const ExtrusionEntity *ee : entities) {
ExtrusionRole er = ee->role();
out = (out == erNone || out == er) ? er : erMixed;
}
return out;
}
bool can_reverse() const { return !this->no_sort; };
bool empty() const { return this->entities.empty(); };
void clear();
void swap (ExtrusionEntityCollection &c);
void append(const ExtrusionEntity &entity) { this->entities.push_back(entity.clone()); }
void append(const ExtrusionEntitiesPtr &entities) {
this->entities.reserve(this->entities.size() + entities.size());
for (ExtrusionEntitiesPtr::const_iterator ptr = entities.begin(); ptr != entities.end(); ++ptr)
this->entities.push_back((*ptr)->clone());
}
void append(ExtrusionEntitiesPtr &&src) {
if (entities.empty())
entities = std::move(src);
else {
std::move(std::begin(src), std::end(src), std::back_inserter(entities));
src.clear();
}
}
void append(const ExtrusionPaths &paths) {
this->entities.reserve(this->entities.size() + paths.size());
for (const ExtrusionPath &path : paths)
this->entities.emplace_back(path.clone());
}
void append(ExtrusionPaths &&paths) {
this->entities.reserve(this->entities.size() + paths.size());
for (ExtrusionPath &path : paths)
this->entities.emplace_back(new ExtrusionPath(std::move(path)));
}
void replace(size_t i, const ExtrusionEntity &entity);
void remove(size_t i);
ExtrusionEntityCollection chained_path(bool no_reverse = false, ExtrusionRole role = erMixed) const;
void chained_path(ExtrusionEntityCollection* retval, bool no_reverse = false, ExtrusionRole role = erMixed, std::vector<size_t>* orig_indices = nullptr) const;
ExtrusionEntityCollection chained_path_from(Point start_near, bool no_reverse = false, ExtrusionRole role = erMixed) const;
void chained_path_from(Point start_near, ExtrusionEntityCollection* retval, bool no_reverse = false, ExtrusionRole role = erMixed, std::vector<size_t>* orig_indices = nullptr) const;
void reverse();
Point first_point() const { return this->entities.front()->first_point(); }
Point last_point() const { return this->entities.back()->last_point(); }
// Produce a list of 2D polygons covered by the extruded paths, offsetted by the extrusion width.
// Increase the offset by scaled_epsilon to achieve an overlap, so a union will produce no gaps.
void polygons_covered_by_width(Polygons &out, const float scaled_epsilon) const override;
// Produce a list of 2D polygons covered by the extruded paths, offsetted by the extrusion spacing.
// Increase the offset by scaled_epsilon to achieve an overlap, so a union will produce no gaps.
// Useful to calculate area of an infill, which has been really filled in by a 100% rectilinear infill.
void polygons_covered_by_spacing(Polygons &out, const float scaled_epsilon) const override;
Polygons polygons_covered_by_width(const float scaled_epsilon = 0.f) const
{ Polygons out; this->polygons_covered_by_width(out, scaled_epsilon); return out; }
Polygons polygons_covered_by_spacing(const float scaled_epsilon = 0.f) const
{ Polygons out; this->polygons_covered_by_spacing(out, scaled_epsilon); return out; }
size_t items_count() const;
void flatten(ExtrusionEntityCollection* retval) const;
ExtrusionEntityCollection flatten() const;
double min_mm3_per_mm() const;
double total_volume() const override { double volume=0.; for (const auto& ent : entities) volume+=ent->total_volume(); return volume; }
// Following methods shall never be called on an ExtrusionEntityCollection.
Polyline as_polyline() const {
throw std::runtime_error("Calling as_polyline() on a ExtrusionEntityCollection");
return Polyline();
};
void collect_polylines(Polylines &dst) const override {
for (ExtrusionEntity* extrusion_entity : this->entities)
extrusion_entity->collect_polylines(dst);
}
double length() const override {
throw std::runtime_error("Calling length() on a ExtrusionEntityCollection");
return 0.;
}
};
}
#endif
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