mirror of
https://gitlab1.ptb.de/waltem01/Matrix
synced 2024-07-07 02:03:44 +00:00
423 lines
9.9 KiB
Python
Executable File
423 lines
9.9 KiB
Python
Executable File
#!/usr/bin/env python
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from deps.samplebase import SampleBase
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from rgbmatrix import graphics
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from PIL import Image
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import base64
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import io
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from flask import Flask, request, jsonify
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from flask_cors import CORS, cross_origin
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from dotenv import load_dotenv
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from waitress import serve
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from pathlib import Path
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import os, time, threading, json
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env_path = Path('..') / '.env'
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load_dotenv(dotenv_path=env_path)
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api = Flask(__name__)
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cors = CORS(api)
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@api.route('/instructions', methods=['POST'])
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@cross_origin()
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def instructions():
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# prepare response data
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response = { 'success': True }
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try:
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global matrix
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assert matrix is not None
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# receive client data
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data = request.form
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# try unpacking instruction list
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instructions = data.get('instructions')
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# parse json data from instructions string
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ins_set = json.loads(instructions)
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# call respective matrix methods with corresponding data
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for ins in ins_set:
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if ins['endpoint'] == 'upload':
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url = ins['url']
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matrix.set_image(url)
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elif ins['endpoint'] == 'image':
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x = int(ins['x'])
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y = int(ins['y'])
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matrix.display_image(x, y)
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elif ins['endpoint'] == 'text':
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x = int(ins['x'])
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y = int(ins['y'])
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matrix.text(x, y, ins['text'])
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elif ins['endpoint'] == 'pixel':
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x = int(ins['x'])
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y = int(ins['y'])
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matrix.pixel(x, y)
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elif ins['endpoint'] == 'circle':
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x = int(ins['x'])
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y = int(ins['y'])
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r = int(ins['r'])
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matrix.circle(x, y, r)
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elif ins['endpoint'] == 'rectangle':
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x = int(ins['x'])
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y = int(ins['y'])
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w = int(ins['w'])
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h = int(ins['h'])
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matrix.rectangle(x, y, w, h)
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elif ins['endpoint'] == 'line':
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x1 = int(ins['x1'])
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y1 = int(ins['y1'])
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x2 = int(ins['x2'])
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y2 = int(ins['y2'])
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matrix.line(x1, y1, x2, y2)
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elif ins['endpoint'] == 'color':
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r = int(ins['r'])
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g = int(ins['g'])
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b = int(ins['b'])
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matrix.set_color(r, g, b)
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elif ins['endpoint'] == 'clear':
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matrix.clear()
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elif ins['endpoint'] == 'update':
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matrix.update()
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except Exception as e:
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# error handling
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print(e)
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response['success'] = False
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# respond to client
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return jsonify(response)
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@api.route('/upload', methods=['POST'])
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@cross_origin()
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def set_image():
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# prepare response data
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response = { 'success': True }
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try:
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global matrix
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assert matrix is not None
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# receive client data
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data = request.form
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# try unpacking text and x,y coordinates
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url = data.get('url')
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# call matrix method with data
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matrix.set_image(url)
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except Exception as e:
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# error handling
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print(e)
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response['success'] = False
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# respond to client
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return jsonify(response)
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@api.route('/image', methods=['POST'])
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@cross_origin()
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def display_image():
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# prepare response data
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response = { 'success': True }
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try:
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global matrix
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assert matrix is not None
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# receive client data
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data = request.form
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# try unpacking x,y coordinates
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x_coord = int(data.get('x'))
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y_coord = int(data.get('y'))
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# call matrix method with data
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matrix.display_image(x_coord, y_coord)
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except Exception as e:
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# error handling
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print(e)
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response['success'] = False
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# respond to client
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return jsonify(response)
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@api.route('/text', methods=['POST'])
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@cross_origin()
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def display_text():
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# prepare response data
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response = { 'success': True }
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try:
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global matrix
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assert matrix is not None
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# receive client data
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data = request.form
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# try unpacking text and x,y coordinates
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text = data.get('text')
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x_coord = int(data.get('x'))
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y_coord = int(data.get('y'))
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# call matrix method with data
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matrix.text(x_coord, y_coord, text)
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except Exception as e:
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# error handling
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print(e)
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response['success'] = False
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# respond to client
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return jsonify(response)
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@api.route('/pixel', methods=['POST'])
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@cross_origin()
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def set_pixel():
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# prepare response data
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response = { 'success': True }
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try:
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global matrix
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assert matrix is not None
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# receive client data
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data = request.form
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# try unpacking x,y coordinates
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x_coord = int(data.get('x'))
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y_coord = int(data.get('y'))
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# call matrix method with data
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matrix.pixel(x_coord, y_coord)
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except Exception as e:
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# error handling
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print(e)
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response['success'] = False
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# respond to client
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return jsonify(response)
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@api.route('/circle', methods=['POST'])
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@cross_origin()
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def draw_circle():
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# prepare response data
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response = { 'success': True }
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try:
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global matrix
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assert matrix is not None
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# receive client data
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data = request.form
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# try unpacking radius and x,y coordinates
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radius = int(data.get('r'))
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x_coord = int(data.get('x'))
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y_coord = int(data.get('y'))
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# call matrix method with data
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matrix.circle(x_coord, y_coord, radius)
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except Exception as e:
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# error handling
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print(e)
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response['success'] = False
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# respond to client
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return jsonify(response)
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@api.route('/rectangle', methods=['POST'])
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@cross_origin()
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def draw_rectangle():
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# prepare response data
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response = { 'success': True }
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try:
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global matrix
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assert matrix is not None
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# receive client data
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data = request.form
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# try unpacking rectangle width and height
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width = int(data.get('w'))
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height = int(data.get('h'))
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# try unpacking x,y coordinates
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x_coord = int(data.get('x'))
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y_coord = int(data.get('y'))
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# call matrix method with data
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matrix.rectangle(x_coord, y_coord, width, height)
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except Exception as e:
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# error handling
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print(e)
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response['success'] = False
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# respond to client
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return jsonify(response)
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@api.route('/line', methods=['POST'])
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@cross_origin()
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def draw_line():
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# prepare response data
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response = { 'success': True }
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try:
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global matrix
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assert matrix is not None
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# receive client data
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data = request.form
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# try unpacking x,y coordinates
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x1 = int(data.get('x1'))
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y1 = int(data.get('y1'))
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x2 = int(data.get('x2'))
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y2 = int(data.get('y2'))
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# call matrix method with data
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matrix.line(x1, y1, x2, y2)
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except Exception as e:
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# error handling
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print(e)
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response['success'] = False
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# respond to client
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return jsonify(response)
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@api.route('/color', methods=['POST'])
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@cross_origin()
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def set_color():
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# prepare response data
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response = { 'success': True }
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try:
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global matrix
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assert matrix is not None
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# receive client data
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data = request.form
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# try unpacking red, green and blue color values
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red = int(data.get('r'))
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green = int(data.get('g'))
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blue = int(data.get('b'))
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# call matrix method with data
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matrix.set_color(red, green, blue)
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except Exception as e:
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# error handling
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print(e)
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response['success'] = False
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# respond to client
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return jsonify(response)
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@api.route('/clear', methods=['GET'])
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@cross_origin()
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def clear_canvas():
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# prepare response data
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response = { 'success': True }
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try:
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global matrix
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assert matrix is not None
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# clear matrix canvas
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matrix.clear()
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except Exception as e:
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# error handling
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print(e)
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response['success'] = False
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# respond to client
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return jsonify(response)
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@api.route('/update', methods=['GET'])
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@cross_origin()
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def update_matrix():
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response = { 'success': True }
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try:
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global matrix
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assert matrix is not None
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# swap matrix canvas
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matrix.update()
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except Exception as e:
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print(e)
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response['success'] = False
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# respond to client
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return jsonify(response)
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# derived class to access rgb-led-matrix
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class Matrix(SampleBase):
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def __init__(self, *args, **kwargs):
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super(Matrix, self).__init__(*args, **kwargs)
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self.parser.set_defaults(led_rows=int(os.getenv('PUBLIC_LED_WIDTH', 64)))
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self.parser.set_defaults(led_cols=int(os.getenv('PUBLIC_LED_HEIGHT', 64)))
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self.parser.set_defaults(led_chain=int(os.getenv('PUBLIC_LED_CHAIN', 1)))
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self.parser.set_defaults(led_parallel=int(os.getenv('PUBLIC_LED_PARALLEL', 1)))
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# run display program
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def run(self):
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# initialize font
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self.font = graphics.Font()
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self.font.LoadFont("deps/fonts/9x18B.bdf")
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# initialize color
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self.color = graphics.Color(255, 255, 255)
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# initialize image
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self.image = None
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# initialize canvas
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self.canvas = self.matrix.CreateFrameCanvas()
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self.canvas.Clear()
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# wait in idle
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while True:
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time.sleep(.05)
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# clear canvas
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def clear(self):
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self.canvas.Clear()
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# swap canvas with buffer
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def update(self):
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self.canvas = self.matrix.SwapOnVSync(self.canvas)
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self.clear()
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# set current color
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def set_color(self, r: int, g: int, b: int):
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self.color = graphics.Color(r, g, b)
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# set specified pixel to current color
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def pixel(self, x: int, y: int):
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self.canvas.SetPixel(x, y, self.color.red, self.color.green, self.color.blue)
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# display text at position with current color
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def text(self, x: int, y: int, t: int):
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graphics.DrawText(self.canvas, self.font, x*9, (y+1)*18, self.color, t)
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# display circle at position with radius in current color
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def circle(self, x: int, y: int, r: int):
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graphics.DrawCircle(self.canvas, x, y, r, self.color)
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# display rectangle at position with dimensions in current color
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def rectangle(self, x: int, y: int, w: int, h: int):
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# loop through each point in dimensions
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for i in range(w):
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for j in range(h):
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# set next pixel in rectangle
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self.canvas.SetPixel(x+i, y+j, self.color.red, self.color.green, self.color.blue)
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# display line from (x1,y1) to (x2,y2) in current color
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def line(self, x1: int, y1: int, x2: int, y2: int):
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graphics.DrawLine(self.canvas, x1, y1, x2, y2, self.color)
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# set current image
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def set_image(self, url: str):
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_, data = url.split(',')
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data = base64.b64decode(data)
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self.image = Image.open(io.BytesIO(data)).convert('RGB')
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# display image at position with dimensions in current color
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def display_image(self, x: int, y: int):
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if self.image is None: return
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# set image at position
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self.canvas.SetImage(self.image, x, y)
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# initialize global matrix variable
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matrix = None
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if __name__ == "__main__":
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# set matrix to instance
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matrix = Matrix()
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# run rest api in thread, serving with 'waitress'
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threading.Thread(target=lambda: serve(api, host="0.0.0.0", port=8080)).start()
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# help menu on call
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if not matrix.process():
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matrix.print_help()
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