MMU segmentation refactoring: Most of the MMU segmentation code

was extracted to its own file.

src/libslic3r/CMakeLists.txt

@@ -128,6 +128,8 @@ add_library(libslic3r STATIC
     Model.hpp
     ModelArrange.hpp
     ModelArrange.cpp
+    MultiMaterialSegmentation.cpp
+    MultiMaterialSegmentation.hpp
     CustomGCode.cpp
     CustomGCode.hpp
     Arrange.hpp

src/libslic3r/MultiMaterialSegmentation.hpp

@@ -0,0 +1,18 @@
+#ifndef slic3r_MultiMaterialSegmentation_hpp_
+#define slic3r_MultiMaterialSegmentation_hpp_
+
+#include <utility>
+#include <vector>
+
+namespace Slic3r {
+
+
+class PrintObject;
+class ExPolygon;
+
+// Returns MMU segmentation based on painting in MMU segmentation gizmo
+std::vector<std::vector<std::pair<ExPolygon, size_t>>> multi_material_segmentation_by_painting(const PrintObject &print_object);
+
+} // namespace Slic3r
+
+#endif // slic3r_MultiMaterialSegmentation_hpp_

src/libslic3r/Print.hpp

@@ -240,11 +240,6 @@ public:
     // Helpers to project custom facets on slices
     void project_and_append_custom_facets(bool seam, EnforcerBlockerType type, std::vector<ExPolygons>& expolys) const;
 
-    // Returns MMU segmentation based on painting in MMU segmentation gizmo
-    std::vector<std::vector<std::pair<ExPolygon, size_t>>> mmu_segmentation_by_painting();
-    // Returns MMU segmentation of top and bottom layers based on painting in MMU segmentation gizmo
-    std::vector<std::vector<ExPolygons>> mmu_segmentation_top_and_bottom_layers();
-
 private:
     // to be called from Print only.
     friend class Print;