#!/usr/bin/env python
# -*- coding: utf-8 -*-
import tkinter as tk
import tkinter.scrolledtext as scrolledtext
from tkinter import messagebox, filedialog
from pyzbar.pyzbar import decode, ZBarSymbol
import cv2
import pyperclip
import pyautogui
import numpy as np
import threading
from PIL import Image, ImageTk, ImageDraw, ImageGrab
import os
class App:
def __init__(self,font_video=0):
self.active_camera = False
self.info = []
self.codelist = []
self.appName = 'QR Code Reader'
self.ventana = tk.Tk()
self.ventana.title(self.appName)
self.ventana.resizable(height=tk.FALSE,width=tk.FALSE)##
self.ventana['bg']='black'
self.currentDir = tk.StringVar()
self.currentDir.set(os.getcwd())
self.font_video=font_video
tk.Entry(self.ventana,textvariable=self.currentDir,width=107).pack(side=tk.TOP)
tk.Label(self.ventana,text=self.appName,font=15,bg='blue',
fg='white').pack(side=tk.TOP,fill=tk.BOTH)
bt_canvas = tk.Canvas(self.ventana)
bt_canvas.pack(side=tk.BOTTOM)
tk.Button(bt_canvas,text="GUARDAR",width=10,bg='light blue',command=self.guardar).pack(side=tk.LEFT)
tk.Button(bt_canvas,text="COPIAR",width=10,bg='light blue',command=self.copy_info).pack(side=tk.LEFT)
self.display=scrolledtext.ScrolledText(self.ventana,width=86,background='snow3'
,height=4,padx=10, pady=10,font=('Arial', 10)) self.display.pack(side=tk.BOTTOM)
self.canvas=tk.Canvas(self.ventana,bg='black',width=640,height=0)
self.canvas.pack()
tk.Button(self.ventana,text="CARGAR ARCHIVO",width=29,bg='goldenrod2',activebackground='red',command=self.abrir).pack(side=tk.LEFT)
self.btnCamera=tk.Button(self.ventana,text="INICIAR LECTURA POR CAMARA",width=30,bg='goldenrod2',
activebackground='red',command=self.active_cam)
self.btnCamera.pack(side=tk.LEFT)
tk.Button(self.ventana,text="DETECTAR EN PANTALLA",width=29,bg='goldenrod2',activebackground='red',command=self.screen_shot).pack(side=tk.RIGHT)
self.ventana.mainloop()
def guardar(self):
if len(self.display.get('1.0',tk.END))>1: documento = filedialog.asksaveasfilename(initialdir="/",
title="Guardar en",defaultextension='.txt')
if documento != "":
archivo_guardar = open(documento,"w",encoding="utf-8")
linea=""
for c in str(self.display.get('1.0',tk.END)): linea=linea+c
archivo_guardar.write(linea)
archivo_guardar.close()
messagebox.showinfo("GUARDADO","INFORMACIÓN GUARDADA EN \'{}\'".format(documento))
def copy_info(self):
try:
if len(self.display.get('1.0',tk.END))>1: pyperclip.copy(self.display.get('1.0',tk.END)) messagebox.showinfo("COPIADO","Copiado en el portapapeles.") except Exception as e:
messagebox.showwarning("UNEXPECTED ERROR",str(e))
def abrir(self):
ruta = filedialog.askopenfilename(initialdir="/",title="SELECCIONAR ARCHIVO",
filetypes =(("png files","*.png") ,("jpg files","*.jpg"))) if ruta != "":
archivo = cv2.imread(ruta)
self.info = decode(archivo)
if self.info != []:
self.display.delete('1.0',tk.END) for i in self.info:
self.display.insert(tk.END,(i[0].decode('utf-8'))+'\n') else:
messagebox.showwarning("ARCHIVO NO VÁLIDO","NO SE DETECTÓ CÓDIGO QR.")
def screen_shot(self):
screenshot = ImageGrab.grab() # captura pantalla
screenshot = np.array(screenshot) # arregle numpy
self.info = decode(screenshot)
if self.info != []:
self.display.delete('1.0', tk.END) for i in self.info:
self.display.insert(tk.END, (i[0].decode('utf-8')) + '\n') else:
messagebox.showwarning("QR NO ENCONTRADO", "NO SE DETECTÓ CÓDIGO")
def visor(self):
ret, frame=self.get_frame()
if ret:
self.photo = ImageTk.PhotoImage(image=Image.fromarray(frame))
self.canvas.create_image(0,0,image=self.photo,anchor=tk.NW)
self.ventana.after(15,self.visor)
def active_cam(self):
if self.active_camera == False:
self.active_camera = True
self.VideoCaptura()
self.visor()
else:
self.active_camera = False
self.codelist = []
self.btnCamera.configure(text="INICIAR LECTURA POR CAMARA")
self.vid.release()
self.canvas.delete('all') self.canvas.configure(height=0)
def capta(self,frm):
self.info = decode(frm)
cv2.putText(frm, "Muestre el codigo delante de la camara para su lectura", (84, 37), cv2.FONT_HERSHEY_SIMPLEX, 0.5, (0, 255, 0), 2)
if self.info != []:
self.display.delete('1.0',tk.END) for code in self.info:
if code not in self.codelist:
content = code[0].decode('utf-8') self.codelist.append(content)
self.display.insert(tk.END,content+'\n')
self.draw_rectangle(frm)
else:
if len(self.codelist)>0:
self.display.delete('1.0',tk.END) for e in set(self.codelist):
self.display.insert(tk.END,e+'\n')
def get_frame(self):
if self.vid.isOpened():
verif,frame=self.vid.read()
if verif:
self.btnCamera.configure(text="CERRAR CAMARA")
self.capta(frame)
return(verif,cv2.cvtColor(frame, cv2.COLOR_BGR2RGB))
else:
messagebox.showwarning("CAMARA NO DISPONIBLE","""La cámara está siendo utilizada por otra aplicación. Cierrela e intentelo de nuevo.""")
self.active_cam()
return(verif,None)
else:
verif=False
return(verif,None)
def draw_rectangle(self,frm):
codes = decode(frm)
for code in codes:
data = code.data.decode('ascii') x, y, w, h = code.rect.left, code.rect.top, \
code.rect.width, code.rect.height
cv2.rectangle(frm, (x,y),(x+w, y+h),(255, 0, 0), 6)
cv2.putText(frm, code.type, (x - 10, y - 10), cv2.FONT_HERSHEY_SIMPLEX, 0.5, (0, 50, 255), 2)
def VideoCaptura(self):
self.vid = cv2.VideoCapture(self.font_video)
if self.vid.isOpened():
self.width=self.vid.get(cv2.CAP_PROP_FRAME_WIDTH)
self.height=self.vid.get(cv2.CAP_PROP_FRAME_HEIGHT)
self.canvas.configure(width=self.width,height=self.height)
else:
messagebox.showwarning("CAMARA NO DISPONIBLE","El dispositivo está desactivado o no disponible") self.display.delete('1.0',tk.END) self.active_camera = False
def __del__(self):
if self.active_camera == True:
self.vid.release()
if __name__=="__main__":
App()
