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piInfoDisplay.py
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piInfoDisplay.py
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#!/usr/bin/python3
import tkinter as tk
import tkinter.font as tkfont
import threading
import time
from http.server import HTTPServer, BaseHTTPRequestHandler
import urllib.parse
import html
import os
from io import BytesIO
textHandler=None
run_loop = True
class FullScreenApp(object):
def __init__(self, master, **kwargs):
self.master=master
self.pad=3
#self._geom='200x200+0+0'
master.geometry("{0}x{1}+0+0".format(
master.winfo_screenwidth()-self.pad, master.winfo_screenheight()-self.pad))
# master.bind('<Escape>',self.toggle_geom)
master.bind('<Escape>',self.quit_program)
self.text=None
self.canvas = tk.Canvas(self.master, width=self.master.winfo_screenwidth()-self.pad, height=self.master.winfo_screenheight()-self.pad, bg = '#000000')
self.canvas.pack()
self.font = tkfont.Font(family="Times", size=20, weight="bold")
def toggle_geom(self,event):
geom=self.master.winfo_geometry()
print(geom,self._geom)
self.master.geometry(self._geom)
self._geom=geom
def quit_program(self,event):
global run_loop
run_loop= False
self.master.destroy()
def draw_text(self,text,color,font_size=20):
self.font.configure(size=font_size)
x_size=self.master.winfo_screenwidth()-self.pad
y_size=self.master.winfo_screenheight()-self.pad
longest_text_len = 0
text_elements=text.split("\n")
for i in range(len(text_elements)):
if text_elements[i][:1]=="&":
text_elements[i]=text_elements[i][1:][::-1]
for line in text_elements:
text_len_pixel = self.font.measure(line)
if text_len_pixel > longest_text_len:
longest_text_len = text_len_pixel
rtl_text="\n".join(text_elements)
#text_len_pixel = self.font.measure(text)
text_height_pixel=self.font.metrics('linespace')
#x_pos=(x_size-longest_text_len)//2
x_pos=(x_size)//2
y_pos=(y_size-text_height_pixel)//2
if self.text:
self.canvas.delete(self.text)
self.canvas.configure(bg=color)
self.text = self.canvas.create_text( x_pos, y_pos, fill='black', font=self.font, text=rtl_text, justify='center')
class tkThread(object):
""" Threading example class
The run() method will be started and it will run in the background
until the application exits.
"""
def __init__(self, interval=1):
""" Constructor
:type interval: int
:param interval: Check interval, in seconds
"""
self.interval = interval
thread = threading.Thread(target=self.run, args=())
thread.daemon = True # Daemonize thread
thread.start() # Start the execution
def run(self):
global textHandler
""" Method that runs forever """
self.root=tk.Tk()
self.app=FullScreenApp(self.root)
textHandler=self.app
#self.app.draw_text("moin",'red')
self.root.mainloop()
def quit(self):
self.root.destroy()
class SimpleHTTPRequestHandler(BaseHTTPRequestHandler):
def do_GET(self):
self.send_page(self.path)
def do_POST(self):
content_length = int(self.headers['Content-Length'])
body = self.rfile.read(content_length)
self.send_page('index.html')
params=urllib.parse.parse_qs(body.decode())
print(params)
text=html.unescape(urllib.parse.unquote_plus(params['text'][0])).replace("\r","")
color=params['color'][0]
fontsize=int(params['fontsize'][0])
global textHandler
""" Method that runs forever """
if textHandler:
textHandler.draw_text(text,color,fontsize)
def send_page(self,file_name):
try:
scriptpath = os.path.dirname(os.path.realpath(__file__))
if file_name=="" or file_name=='/':
file_name='index.html'
with open(scriptpath + os.sep + file_name,'r') as f:
if file_name.endswith(".html"):
content_type= "text/html"
elif file_name.endswith(".js"):
content_type= "application/javascript"
else:
content_type= "application/octet-stream"
content=f.read().encode()
self.send_response(200)
self.send_header("Content-type", content_type)
self.end_headers()
self.wfile.write(content)
except:
self.send_response(404)
self.send_header("Content-type", "text/html")
self.end_headers()
class webServerThread(object):
""" Threading example class
The run() method will be started and it will run in the background
until the application exits.
"""
def __init__(self, interval=1):
""" Constructor
:type interval: int
:param interval: Check interval, in seconds
"""
self.interval = interval
thread = threading.Thread(target=self.run, args=())
thread.daemon = True # Daemonize thread
thread.start() # Start the execution
def run(self):
global textHandler
""" Method that runs forever """
httpd = HTTPServer(('0.0.0.0', 8000), SimpleHTTPRequestHandler)
if textHandler:
textHandler.draw_text("Gehe auf\nWLAN: ipInfoDisplay\nPasswort: kindergarten\nUnd dann auf die Website\nhttp://192.168.48.1:8000",'lightblue')
httpd.serve_forever()
def quit(self):
self.root.destroy()
tkthread = tkThread()
# wait a moment for the window to open before write something
time.sleep(3)
webthread = webServerThread()
while run_loop:
time.sleep(1)
print('Bye')