Added Design Patterns and updated readme.md links (#61)

Author: MitkoVtori

OOP/B.Design Patterns/# TODO.txt

@@ -0,0 +1,79 @@
+from abc import ABC, abstractmethod
+
+
+class AbstractFactory(ABC):
+ @abstractmethod
+ def create_chair(self):
+ raise NotImplementedError()
+
+ @abstractmethod
+ def create_sofa(self):
+ raise NotImplementedError()
+
+ @abstractmethod
+ def create_table(self):
+ raise NotImplementedError()
+
+
+class Chair:
+
+ def __init__(self, name):
+ self._name = name
+
+ def __str__(self):
+ return self._name
+
+
+class Sofa:
+
+ def __init__(self, name):
+ self._name = name
+
+ def __str__(self):
+ return self._name
+
+
+class Table:
+
+ def __init__(self, name):
+ self._name = name
+
+ def __str__(self):
+ return self._name
+
+
+class VictorianFactory(AbstractFactory):
+
+ def create_chair(self):
+ return Chair("victorian chair")
+
+ def create_sofa(self):
+ return Sofa("victorian sofa")
+
+ def create_table(self):
+ return Table("victorian table")
+
+
+class ModernFactory(AbstractFactory):
+
+ def create_chair(self):
+ return Chair("modern chair")
+
+ def create_sofa(self):
+ return Sofa("modern sofa")
+
+ def create_table(self):
+ return Table("modern table")
+
+
+class FuturisticFactory(AbstractFactory):
+
+ def create_chair(self):
+ return Chair("futuristic chair")
+
+ def create_sofa(self):
+ return Sofa("futuristic sofa")
+
+ def create_table(self):
+ return Table("futuristic table")
+

OOP/B.Design Patterns/01. Abstract Factory.py

@@ -0,0 +1,43 @@
+class Component:
+
+ def __init__(self, name):
+ self.name = name
+ self.parent = None
+
+ def move(self, new_path):
+ new_folder = get_path(new_path)
+ del self.parent.children[self.name]
+ new_folder.children[self.name] = self
+ self.parent = new_folder
+
+ def delete(self):
+ del self.parent.children[self.name]
+
+
+class Folder(Component):
+
+ def __init__(self, name):
+ super().__init__(name)
+ self.children = {}
+
+ def add_child(self, child):
+ self.parent = self
+ self.children[child.name] = child
+
+
+class File(Component):
+
+ def __init__(self, name, contents):
+ super().__init__(name)
+ self.contents = contents
+
+
+root = Folder('')
+
+def get_path(path):
+ names = path.split('/')[1:]
+ node = root
+ for name in names:
+ node = node.children[name]
+ return node
+

OOP/B.Design Patterns/02. Composite.py

@@ -0,0 +1,68 @@
+import sys
+
+
+class Window:
+
+ def exit(self):
+ sys.exit(0)
+
+
+class Document:
+
+ def __init__(self, filename):
+ self.filename = filename
+ self.contents = "This file cannot be modified"
+
+ def save(self):
+ with open(self.filename, "w") as file:
+ file.write(self.contents)
+
+
+class ToolbarDocument:
+
+ def __init__(self, name, iconname):
+ self.name = name
+ self.iconname = iconname
+
+ def click(self):
+ self.command.execute()
+
+
+class MenuItem:
+
+ def __init__(self, menu_name, item_name):
+ self.menu = menu_name
+ self.item = item_name
+
+ def click(self):
+ self.command.execute()
+
+
+class KeyboardShortcut:
+
+ def __init__(self, key, modifier):
+ self.key = key
+ self.modifier = modifier
+
+ def keypress(self):
+ self.command.execute()
+
+
+class SaveCommand:
+
+ def __init__(self, document):
+ self.document = document
+
+ def execute(self):
+ self.document.save()
+
+
+class ExitCommand:
+
+ def __init__(self, window):
+ self.window = window
+
+ def execute(self):
+ self.window.exit()
+
+

OOP/B.Design Patterns/03. Command.py

@@ -49,4 +49,12 @@
 | -------------- |
 | <a href="A.Testing/Testing - Lab">Testing</a> |
 | <a href="A.Testing/Testing - Exercise">Exercise: Testing</a> |
-
+| ---------------- |
+| ---------------- |
+| <a href="B.Design Patterns">Design Patterns</a> |
+| ---------------- |
+| ---------------- |
+| <a href="C.Exam Preparation">Exam Preparation</a> |
+| ------------------------- |
+| <a href="C.Exam Preparation/Python OOP Exam - 10 December 2022">Python OOP Exam - 10 December 2022</a>
+| <a href="C.Exam Preparation/Python OOP Retake Exam - 19 December 2022">Python OOP Retake Exam - 19 December 2022</a>

OOP/README.md

@@ -23,7 +23,7 @@ Course Exercise Lecturer - **[Diyan Kalaydzhiev](https://github.com/DiyanKalaydz
 | <a href="Advanced/Exam Preparation">Exam Preparation</a> | <a href="OOP/8.Iterators and Generators">Iterators and Generators</a> |
 | <a href="Advanced/Regular Exam">Regular Exam</a> | <a href="OOP/9.Decorators">Decorators</a> |
 | | <a href="OOP/A.Testing">Testing</a> |
-| | Design Patterns |
-| | Exam Preparation |
+| | <a href="OOP/B.Design Patterns">Design Patterns</a> |
+| | <a href="OOP/C.Exam Preparation">Exam Preparation</a> |
 | | Workshop |
 | | Regular Exam |