Add build script.

dsst/dsst_gtk3/util.py

@@ -1,3 +1,7 @@
+import os
+from zipfile import ZipFile
+
+
 class Util:
     @staticmethod
     def get_combo_value(combo, index: int):
@@ -7,3 +11,33 @@ class Util:
             return combo.get_model().get_value(tree_iter, index)
         else:
             return -1
+
+    @staticmethod
+    def get_index_of_combo_model(combo, column: int, value: int):
+        model = combo.get_model()
+        return [model.index(entry) for entry in model if entry[column] == value]
+
+    @staticmethod
+    def load_ui_resource_string(resource_path: list) -> str:
+        """ Load content of Glade UI files from resources path
+        :param resource_path: List of directory names from 'dsst' base directory
+        :return: String content of the Glade file
+        """
+        if os.path.isdir(os.path.dirname(__file__)):
+            return Util.load_ui_resource_from_file(resource_path)
+        else:
+
+            return Util.load_ui_resource_from_archive(resource_path)
+
+    @staticmethod
+    def load_ui_resource_from_file(resource_path: list) -> str:
+        project_base_dir = os.path.dirname(os.path.dirname(__file__))
+        full_path = os.path.join(project_base_dir, *resource_path)
+        with open(full_path, 'r') as file:
+            return file.read()
+
+    @staticmethod
+    def load_ui_resource_from_archive(resource_path: list) -> str:
+        zip_path = os.path.dirname(os.path.dirname(__file__))
+        with ZipFile(zip_path, 'r') as archive:
+            return archive.read(str(os.path.join(*resource_path))).decode('utf-8')