Working arrange_objects with DJD selection heuristic and a bottom-left placement strategy.

xs/CMakeLists.txt

@@ -679,6 +679,35 @@ add_custom_target(pot
     COMMENT "Generate pot file from strings in the source tree"
 )
 
+# ##############################################################################
+# Adding libnest2d project for bin packing...
+# ##############################################################################
+
+set(LIBNEST2D_UNITTESTS ON CACHE BOOL "Force generating unittests for libnest2d")
+
+if(LIBNEST2D_UNITTESTS)
+   # If we want the libnest2d unit tests we need to build and executable with
+   # all the libslic3r dependencies. This is needed because the clipper library
+   # in the slic3r project is hacked so that it depends on the slic3r sources.
+   # Unfortunately, this implies that the test executable is also dependent on 
+   # the libslic3r target.
+
+#   add_library(libslic3r_standalone STATIC ${LIBDIR}/libslic3r/utils.cpp)
+#   set(LIBNEST2D_TEST_LIBRARIES
+#       libslic3r libslic3r_standalone nowide libslic3r_gui admesh miniz
+#       ${Boost_LIBRARIES} clipper ${EXPAT_LIBRARIES} ${GLEW_LIBRARIES}
+#       polypartition poly2tri ${TBB_LIBRARIES} ${wxWidgets_LIBRARIES}
+#       ${CURL_LIBRARIES}
+#   )
+endif()
+
+add_subdirectory(${LIBDIR}/libnest2d)
+target_include_directories(libslic3r PUBLIC BEFORE ${LIBNEST2D_INCLUDES})
+
+# Add the binpack2d main sources and link them to libslic3r
+target_link_libraries(libslic3r libnest2d)
+# ##############################################################################
+
 # Installation
 install(TARGETS XS DESTINATION ${PERL_VENDORARCH}/auto/Slic3r/XS)
 install(FILES lib/Slic3r/XS.pm DESTINATION ${PERL_VENDORLIB}/Slic3r)