Setting up a broad GUI structure

Let's now set up the broad GUI elements of our program. We create a PaintApplication class in 6.01.py. Since we want to draw the menu using our framework, we import the framework into our file and inherit from the Framework class as follows:

import framework

class PaintApplication(framework.Framework):

    def __init__(self, root):
        super().__init__(root)
        self.create_gui()

The __init__ method calls another method, create_gui, which is responsible for creating the basic GUI structure for our program.

The create_gui method simply delegates the task to five separate methods, each being responsible for creating one section of the GUI as follows (see code 6.01.py):

    def create_gui(self):
        self.create_menu()
        self.create_top_bar()
        self.create_tool_bar()
        self.create_drawing_canvas()
        self.bind_menu_accelrator_keys()

These five methods together build a structure as shown in the following figure (see code 6.01.py...