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pybgui.py
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pybgui.py
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from tkinter import Button, Canvas, DISABLED, Frame, Label, Tk
CONTROL_ROW = 0
BOARD_ROW = CONTROL_ROW + 1
LEDS_COLUMN = 0
SWITCH_COLUMN = LEDS_COLUMN + 1
class LCD:
COLORS = ['white', 'black']
PIXEL_SIZE = 2
SCREEN_SCALE = PIXEL_SIZE + 1
def __init__(self, app):
self.app = app
self.obj = None
self.master = self.app.master
self.widget = None
self.hardware = self.app.hardware.get('LCD')
self.build()
def build(self):
width = self.hardware.get('x') * LCD.SCREEN_SCALE
height = self.hardware.get('y') * LCD.SCREEN_SCALE
skin_position = self.hardware.get('skin_position')
if skin_position == 'Y':
width, height = height, width
canvas = Canvas(self.master, width=width, height=height)
canvas.pack()
self.widget = canvas
def update(self):
if self.app.board.LCD.skin_position is None:
return
if self.obj is None and self.hardware is not None:
self.obj = self.app.board.LCD
if self.obj._buffer is None:
return
if self.obj._buffer.items() == self.obj._hidden_buffer.items():
return
for k, v in self.obj._buffer.items():
x = (k[0] * LCD.SCREEN_SCALE)
y = (k[1] * LCD.SCREEN_SCALE)
color = LCD.COLORS[v]
rectangle = (x, y, x + LCD.PIXEL_SIZE, y + LCD.PIXEL_SIZE)
self.widget.create_rectangle(rectangle, outline=color, fill=color)
class LED:
def __init__(self, obj, widget):
self.obj = obj
self.widget = widget
def update(self):
background='white'
if self.obj._intensity:
background = self.obj._color
text = '%03d' % self.obj._intensity
self.widget.config(text=text, background=background)
class Switch:
def __init__(self, board, obj, widget):
self.board = board
self.obj = obj
self.widget = widget
self.widget.bind("<Button-1>", self.press_command)
self.widget.bind("<ButtonRelease-1>", self.release_command)
def press_command(self, event):
self.board.interpreter.write("%s-switch:press" % self.obj._name)
def release_command(self, event):
self.board.interpreter.write("%s-switch:release" % self.obj._name)
class App:
def __init__(self, master, board):
self.board_is_running = False
self.hardware = board.hardware
self.master = master
self.frame = Frame(master)
self.frame.pack()
self.board = board
self.leds = []
self.init()
def init(self):
self.init_LCD()
self.init_leds()
self.init_switches()
b0 = Button(
self.frame, text="ON!", background="green", command=self.boot_board
)
b0.grid(row=CONTROL_ROW, column=0)
b1 = Button(
self.frame, text="OFF!", background="red", command=self.stop_board
)
b1.grid(row=CONTROL_ROW, column=1)
def boot_board(self):
if not self.board_is_running:
self.board_is_running = True
self.board.main()
def stop_board(self):
self.board_is_running = False
self.board.stop()
def init_LCD(self):
Label(self.frame, text="LCD").grid(row=BOARD_ROW + 1, column=LEDS_COLUMN)
self.LCD = LCD(self)
def init_leds(self):
Label(self.frame, text="Leds").grid(row=BOARD_ROW, column=LEDS_COLUMN)
count = BOARD_ROW + 1
for led in self.board.leds.values():
led_w = Button(self.frame, background="white", state=DISABLED,
foreground="black")
led_w.grid(row=count, column=LEDS_COLUMN)
count += 1
led = LED(led, led_w)
self.leds.append(led)
def init_switches(self):
label = Label(self.frame, text="Switches")
label.grid(row=BOARD_ROW, column=SWITCH_COLUMN)
# user switch
switch_w = Button(self.frame, background="black")
switch_w.grid(row=BOARD_ROW + 1, column=SWITCH_COLUMN)
Switch(self.board, self.board.switch, switch_w)
# reset switch
switch_w = Button(self.frame, background="black", foreground='white',
text="reset")
switch_w.grid(row=BOARD_ROW + 1, column=SWITCH_COLUMN + 1)
Switch(self.board, self.board.reset, switch_w)
def update(self):
if not self.board_is_running:
return
for led in self.leds:
led.update()
self.LCD.update()
def main(board):
root = Tk()
app = App(root, board)
def update_gui():
root.after(5, update_gui)
app.update()
root.after(0, update_gui)
root.mainloop()
board.stop()