Qt4 timer example #2

gistfile1.txt

#!/usr/bin/env python
# encoding: utf-8:

import sys
from PyQt4.QtCore import *
from PyQt4.QtGui import *
from PyQt4.uic import *
import random


class GetTemp(QObject):
    message = pyqtSignal(dict)

    def __init__(self):
        QObject.__init__(self)
        # self.message = pyqtSignal(str)

    def get_values(self):
        data = {'bed': str(random.randint(50, 60)),
                'tool0': str(random.randint(180, 220))}
        self.message.emit(data)


class App(QMainWindow):
    def __init__(self):
        QMainWindow.__init__(self)
        # Charge de la définition de l'UI depuis le fichier produit par le designer
        self.ui = loadUi("example.ui")
        self.ui.show()

        # Création d'une instance de GetTemp
        self.get_status = GetTemp()
        # On connecte le message émis par GetTemp à la méthode update_temp
        self.get_status.message.connect(self.update_temp)

        # Créatiion d'un QTimer
        self.timer = QTimer()
        # Choix de l'intervalle
        self.timer.setInterval(1000)
        # On appelle la méthode get_values de l'instance de GetStatus quand le timer arrive à expiration
        self.timer.timeout.connect(self.get_status.get_values)
        # Démarrage du timer
        self.timer.start()

    def update_temp(self, data):
        self.ui.bedTemperature.setText(data['bed'])
        self.ui.tool0.setText(data['tool0'])


if __name__ == '__main__':
    app = QApplication(sys.argv)
    win = App()
    app.exec_()

"""
$ cat example.ui
<?xml version="1.0" encoding="UTF-8"?>
<ui version="4.0">
 <class>MainWindow</class>
 <widget class="QMainWindow" name="MainWindow">
  <property name="geometry">
   <rect>
    <x>0</x>
    <y>0</y>
    <width>800</width>
    <height>600</height>
   </rect>
  </property>
  <property name="windowTitle">
   <string>MainWindow</string>
  </property>
  <widget class="QWidget" name="centralwidget">
   <widget class="QLabel" name="bedTemperature">
    <property name="geometry">
     <rect>
      <x>20</x>
      <y>20</y>
      <width>66</width>
      <height>20</height>
     </rect>
    </property>
    <property name="text">
     <string>10</string>
    </property>
   </widget>
   <widget class="QLabel" name="tool0">
    <property name="geometry">
     <rect>
      <x>20</x>
      <y>40</y>
      <width>66</width>
      <height>20</height>
     </rect>
    </property>
    <property name="text">
     <string>10</string>
    </property>
   </widget>
  </widget>
  <widget class="QMenuBar" name="menubar">
   <property name="geometry">
    <rect>
     <x>0</x>
     <y>0</y>
     <width>800</width>
     <height>32</height>
    </rect>
   </property>
  </widget>
  <widget class="QStatusBar" name="statusbar"/>
 </widget>
 <resources/>
 <connections/>
</ui>
"""