1 files changed, 144 insertions, 0 deletions
diff --git a/xs/src/libslic3r/Layer.cpp b/xs/src/libslic3r/Layer.cpp
new file mode 100644
index 000000000..689077d46
--- /dev/null
+++ b/xs/src/libslic3r/Layer.cpp
@@ -0,0 +1,144 @@
+#include "Layer.hpp"
+#include "ClipperUtils.hpp"
+#include "Geometry.hpp"
+#include "Print.hpp"
+
+
+namespace Slic3r {
+
+Layer::Layer(int id, PrintObject *object, coordf_t height, coordf_t print_z,
+        coordf_t slice_z)
+:   _id(id),
+    _object(object),
+    upper_layer(NULL),
+    lower_layer(NULL),
+    regions(),
+    slicing_errors(false),
+    slice_z(slice_z),
+    print_z(print_z),
+    height(height),
+    slices()
+{
+}
+
+Layer::~Layer()
+{
+    // remove references to self
+    if (NULL != this->upper_layer) {
+        this->upper_layer->lower_layer = NULL;
+    }
+
+    if (NULL != this->lower_layer) {
+        this->lower_layer->upper_layer = NULL;
+    }
+
+    this->clear_regions();
+}
+
+int
+Layer::id()
+{
+    return this->_id;
+}
+
+PrintObject*
+Layer::object()
+{
+    return this->_object;
+}
+
+
+size_t
+Layer::region_count()
+{
+    return this->regions.size();
+}
+
+void
+Layer::clear_regions()
+{
+    for (int i = this->regions.size()-1; i >= 0; --i)
+        this->delete_region(i);
+}
+
+LayerRegion*
+Layer::get_region(int idx)
+{
+    return this->regions.at(idx);
+}
+
+LayerRegion*
+Layer::add_region(PrintRegion* print_region)
+{
+    LayerRegion* region = new LayerRegion(this, print_region);
+    this->regions.push_back(region);
+    return region;
+}
+
+void
+Layer::delete_region(int idx)
+{
+    LayerRegionPtrs::iterator i = this->regions.begin() + idx;
+    LayerRegion* item = *i;
+    this->regions.erase(i);
+    delete item;
+}
+
+// merge all regions' slices to get islands
+void
+Layer::make_slices()
+{
+    ExPolygons slices;
+    if (this->regions.size() == 1) {
+        // optimization: if we only have one region, take its slices
+        slices = this->regions.front()->slices;
+    } else {
+        Polygons slices_p;
+        FOREACH_LAYERREGION(this, layerm) {
+            Polygons region_slices_p = (*layerm)->slices;
+            slices_p.insert(slices_p.end(), region_slices_p.begin(), region_slices_p.end());
+        }
+        union_(slices_p, slices);
+    }
+    
+    this->slices.expolygons.clear();
+    this->slices.expolygons.reserve(slices.size());
+    
+    // prepare ordering points
+    Points ordering_points;
+    ordering_points.reserve(slices.size());
+    for (ExPolygons::const_iterator ex = slices.begin(); ex != slices.end(); ++ex)
+        ordering_points.push_back(ex->contour.first_point());
+    
+    // sort slices
+    std::vector<Points::size_type> order;
+    Slic3r::Geometry::chained_path(ordering_points, order);
+    
+    // populate slices vector
+    for (std::vector<Points::size_type>::const_iterator it = order.begin(); it != order.end(); ++it) {
+        this->slices.expolygons.push_back(slices[*it]);
+    }
+}
+
+
+#ifdef SLIC3RXS
+REGISTER_CLASS(Layer, "Layer");
+#endif
+
+
+SupportLayer::SupportLayer(int id, PrintObject *object, coordf_t height,
+        coordf_t print_z, coordf_t slice_z)
+:   Layer(id, object, height, print_z, slice_z)
+{
+}
+
+SupportLayer::~SupportLayer()
+{
+}
+
+#ifdef SLIC3RXS
+REGISTER_CLASS(SupportLayer, "Layer::Support");
+#endif
+
+
+}