Note for development

• For a new functionality, name it and put the name into NoteModel .functionality, which is a enumeration type.

• The class in model package that keeps the data of new functionality should extend NoteShape and implements reDraw(), which enables the class to redraw itself entirely to view.

• Create a new class under view to store the code related to view.

• Update the update method in NoteView by inserting the functionality added in NoteModel.

2019-4-23

• Finished view class for page and section.

2019-4-22

• Add page and section class for model
• The page and section will be showed by view

2019-4-18

• Added type function. User can type now.
• Added erasure function that can only erases drawing made by pen.
• Updated serializable process
• Updated the update method in NoteView, which now, uses enumeration types and switch.

Before 2019-4-17

• Created MVC
• Users can draw on pages
• Can modify pen color and width
• All classes in view package only calls controller's method.
• Add enumeration types in model to indicate current functionality
• For every single line that user makes, we make a Path instance to represent it
• Path class can store color and width
• Process method and related methods in NotePen are static.
• Model is serializable