Dan Anglin
2ebb555bac
Optionally pass in the reference of the Window to the Maze and Cell classes, and only draw the graphics if the reference exists. Use a single underscore instead of the double underscore for private Class members.
88 lines
2.2 KiB
Python
88 lines
2.2 KiB
Python
from tkinter import Tk, BOTH, Canvas
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class Point:
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"""
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Point represents the position of a point.
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"""
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def __init__(self, x: int, y: int):
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self.x = x
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self.y = y
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class Line:
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"""
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Line represents a graphical line.
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"""
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def __init__(self, point_a: Point, point_b: Point) -> None:
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self.point_a = point_a
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self.point_b = point_b
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def draw(self, canvas: Canvas, fill_colour: str) -> None:
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"""
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draw draws a line on a given canvas.
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"""
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canvas.create_line(
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self.point_a.x, self.point_a.y,
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self.point_b.x, self.point_b.y,
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fill=fill_colour, width=2
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)
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canvas.pack()
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class Window:
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"""
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Window is a Graphical window.
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"""
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def __init__(self, width: int, height: int) -> None:
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self._root = Tk()
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self._root.title("Maze Solver")
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self._root.protocol("WM_DELETE_WINDOW", self.close)
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# Position the window to the centre of the screen
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screen_width = self._root.winfo_screenwidth()
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screen_height = self._root.winfo_screenheight()
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centre_x = int(screen_width/2 - width/2)
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centre_y = int(screen_height/2 - height/2)
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self._root.geometry(f"{width}x{height}+{centre_x}+{centre_y}")
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self._canvas = Canvas(self._root)
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self._canvas.config(
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bg="white",
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height=height,
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width=width,
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)
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self._canvas.pack()
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self._running = False
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def redraw(self) -> None:
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"""
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redraw redraws all the graphics in the window.
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"""
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self._root.update_idletasks()
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self._root.update()
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def wait_for_close(self) -> None:
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"""
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wait_for_close continuously redraws the window until
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it is set to close.
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"""
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self._running = True
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while self._running:
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self.redraw()
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def draw_line(self, line: Line, fill_colour: str = "black") -> None:
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"""
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draw_line draws a line on the canvas.
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"""
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line.draw(self._canvas, fill_colour)
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def close(self) -> None:
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"""
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close sets the window to close.
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"""
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self._running = False
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