Stuff

printer/printer.py

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+import StarTSPImage
+from PIL import Image, ImageDraw
+
+
+
+import paho.mqtt.client as mqtt
+
+# The callback for when the client receives a CONNACK response from the server.
+def on_connect(client, userdata, flags, rc):
+    print("Connected with result code "+str(rc))
+
+    # Subscribing in on_connect() means that if we lose the connection and
+    # reconnect then subscriptions will be renewed.
+    client.subscribe("print")
+
+# The callback for when a PUBLISH message is received from the server.
+def on_message(client, userdata, msg):
+    print(msg.topic+" "+str(msg.payload))
+    image = Image.new('RGB', (2000, 2000), color='White')
+    draw = ImageDraw.Draw(image)
+    draw.ellipse((0, 0, 500, 500), fill='Black')
+    draw.ellipse((10, 10, 490, 490), fill='White')
+    image.show()
+    image.save("image.jpg")
+
+    # raster = StarTSPImage.imageToRaster(image, cut=True)
+
+    # printer = open('/dev/usb/lp0', "wb")
+    # printer.write(raster)
+
+client = mqtt.Client()
+client.on_connect = on_connect
+client.on_message = on_message
+
+client.connect("10.1.1.162", 1883, 60)
+
+# Blocking call that processes network traffic, dispatches callbacks and
+# handles reconnecting.
+# Other loop*() functions are available that give a threaded interface and a
+# manual interface.
+client.loop_forever()