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import zmq
import json
import copy
class Matrix:
"Leds matrix"
def __init__(self):
"Establish connection to matrix"
self.width = 12
self.height = 10
self.__mat__ = [None]*10
for x in range(10):
self.__mat__[x] = [None]*12
for y in range(12):
self.__mat__[x][y] = '000000'
self.context = zmq.Context()
self.socket = self.context.socket(zmq.PUB)
self.socket.bind('tcp://*:4444')
def display(self):
"Display matrix to leds"
for i in range(0, 10):
self.socket.send_string('line' + str(i) + ' ' +
json.dumps(self.__mat__[i]))
def pixel(self, x, y, color):
"Set pixel in matrix"
if x < 0 or x > 11 or y < 0 or y > 9:
raise Exception('Pixel out of matrix')
self.__mat__[y][x] = color
def fill(self, color):
"Fill whole matrix with given color"
for x in range(self.width):
for y in range(self.height):
self.pixel(x, y, color)
def set_matrix(self, matrix):
"Set given matrix as matrix"
for x in range(self.width):
for y in range(self.height):
self.pixel(x, y, matrix[y][x])
def copy_matrix(self):
"Return copy of current matrix"
return copy.deepcopy(self.__mat__)
def matrix_diff(self, matrix):
"""
Returns set of changes in matrix
Every item in set is dictionary with following items:
x: X position of led
y: Y position of led
color: string defining color of given led
"""
change = list()
for x in range(self.width):
for y in range(self.height):
if matrix[y][x] != self.__mat__[y][x]:
change.append({
'x': x,
'y': y,
'color': self.__mat__[y][x]
})
return change
def matrix_apply_diff(self, diff):
"Apply diff generated by matrix_diff"
for change in diff:
self.pixel(change['x'], change['y'], change['color'])
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