Added layout hints config option to class diagrams

tests/test_config.cc

@@ -77,4 +77,28 @@ TEST_CASE("Test config includes", "[unit-test]")
     CHECK(cus.include_relations_also_as_members());
     CHECK(cus.generate_method_arguments() ==
         clanguml::config::method_arguments::none);
+}
+
+TEST_CASE("Test config layout", "[unit-test]")
+{
+    auto cfg = clanguml::config::load("./test_config_data/layout.yml");
+
+    CHECK(cfg.diagrams.size() == 1);
+    auto &def = static_cast<clanguml::config::class_diagram &>(
+        *cfg.diagrams["class_main"]);
+    CHECK(def.type() == clanguml::config::diagram_type::class_diagram);
+
+    CHECK(def.layout().at("ABCD").size() == 2);
+    CHECK(def.layout().at("ABCD")[0].hint == clanguml::config::hint_t::up);
+    CHECK(def.layout().at("ABCD")[0].entity == "ABCD_SUBCLASS");
+    CHECK(def.layout().at("ABCD")[1].hint == clanguml::config::hint_t::left);
+    CHECK(def.layout().at("ABCD")[1].entity == "ABCD_SIBLING");
+
+    CHECK(def.layout().at("ABCD_SIBLING").size() == 2);
+    CHECK(def.layout().at("ABCD_SIBLING")[0].hint ==
+        clanguml::config::hint_t::right);
+    CHECK(def.layout().at("ABCD_SIBLING")[0].entity == "ABCD_OTHER_SIBLING");
+    CHECK(def.layout().at("ABCD_SIBLING")[1].hint ==
+        clanguml::config::hint_t::down);
+    CHECK(def.layout().at("ABCD_SIBLING")[1].entity == "ABCD_SIBLING_SIBLING");
 }

tests/test_config_data/layout.yml

@@ -0,0 +1,22 @@
+compilation_database_dir: debug
+output_directory: output
+diagrams:
+  class_main:
+    type: class
+    glob:
+      - src/**/*.cc
+      - src/**/*.h
+    using_namespace:
+      - clanguml
+    generate_method_arguments: full
+    layout:
+      ABCD:
+        - up: ABCD_SUBCLASS
+        - left: ABCD_SIBLING
+      ABCD_SIBLING:
+        - right: ABCD_OTHER_SIBLING
+        - down: ABCD_SIBLING_SIBLING
+    include:
+      namespaces:
+        - clanguml
+        - ABCD