Stubbed out/implemented Print::process and generate_support_material.

(w/o unit tests)

xs/src/libslic3r/Print.cpp

@@ -97,6 +97,13 @@ Print::delete_object(size_t idx)
 void
 Print::process() 
 {
+    if (this->status_cb != nullptr)
+        this->status_cb(70, "Infilling layers");
+    for(auto obj : this->objects) { obj->_infill(); }
+    for(auto obj : this->objects) { obj->generate_support_material(); }
+
+    this->make_skirt();
+    this->make_brim(); // must follow make_skirt
 }
 
 void

xs/src/libslic3r/Print.hpp

@@ -136,6 +136,10 @@ class PrintObject
     void delete_layer(int idx);
 
     SupportMaterial* _support_material();
+
+    /// Initialize and generate support material.
+    void generate_support_material();
+
     Flow _support_material_flow(FlowRole role = frSupportMaterial);
     size_t support_layer_count() const;
     void clear_support_layers();

xs/src/libslic3r/PrintObject.cpp

@@ -1146,4 +1146,39 @@ PrintObject::_support_material_flow(FlowRole role)
 
     return support_flow;
 }
+
+void
+PrintObject::generate_support_material() 
+{
+    auto* print { this->_print };
+    auto& config {this->config };
+    //prereqs 
+    this->_slice();
+    if (this->state.is_done(posSupportMaterial)) { return; }
+
+    this->state.set_started(posSupportMaterial); 
+
+    this->clear_support_layers();
+
+    if ((!config.support_material
+                && config.raft_layers == 0
+                && config.support_material_enforce_layers == 0)
+            || this->layers.size() < 2
+       ) {
+        this->state.set_done(posSupportMaterial);
+        return;
+    }
+    if (print->status_cb != nullptr)
+        print->status_cb(85, "Generating support material");
+
+    this->_support_material()->generate(this);
+
+    this->state.set_done(posSupportMaterial);
+
+    std::stringstream stats {""};
+
+    if (print->status_cb != nullptr)
+        print->status_cb(85, stats.str().c_str());
+
+}
 }