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Posted By

whitetiger on 11/09/06


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PyS60 - Thread

 / Published in: Python
 
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  1. import appuifw
  2. import e32
  3. import graphics
  4. import thread
  5. import time
  6.  
  7. class Main:
  8.  
  9.     def __init__(self):
  10.  
  11.         appuifw.app.title = u'Fibonacci'
  12.         appuifw.app.body = self.canvas = appuifw.Canvas()
  13.         appuifw.exit_key_handler = self.OnExit
  14.         appuifw.app.menu = [(u'Calcola', self.OnCalcola)]
  15.  
  16.         self.nlock = thread.allocate_lock() # Allocazione di un lock per il thread
  17.         self.vlock = thread.allocate_lock()
  18.  
  19.         self.ris1 = 0
  20.         self.ris2 = ''
  21.         self.loop = 1
  22.         self.indice = 0
  23.         self.img = graphics.Image.new(self.canvas.size)
  24.  
  25.         self.OnLoop()
  26.  
  27.     def OnCalcola(self):
  28.  
  29.         numero = appuifw.query(u'Inserire un Numero', 'number')
  30.  
  31.         thread.start_new_thread(self.fibonacci, (numero, ))
  32.  
  33.     def fibonacci(self, n):
  34.  
  35.         self.ris1 = time.strftime('%H:%M:%S')
  36.         self.ris2 = ''
  37.  
  38.         a, b = 0, 1
  39.  
  40.         for i in range(n):
  41.  
  42.             a, b = b, a + b
  43.             self.nlock.acquire()
  44.             self.indice = ((i+1)*100)/n
  45.             self.nlock.release()
  46.  
  47.         self.nlock.acquire()
  48.         self.ris2 = time.strftime('%H:%M:%S')
  49.         self.nlock.release()
  50.  
  51.     def OnExit(self):
  52.  
  53.         self.loop = 0
  54.  
  55.     def OnLoop(self):
  56.  
  57.         while self.loop:
  58.  
  59.             e32.ao_sleep(0.1)
  60.  
  61.             self.img.clear(0)
  62.  
  63.             self.img.line([37, 50, 137, 50], 0xffffff, width=20)
  64.             self.img.line([37, 50, 37 + self.indice, 50], 0xfffc0d, width=20)
  65.             self.img.text((80, 55), u'' + str(self.indice) + u'%', 0x000000)
  66.  
  67.             self.vlock.acquire()
  68.             if self.ris2 <> '':
  69.  
  70.                 self.img.text((45, 80), u'Start: ' + str(self.ris1), 0xffffff)
  71.                 self.img.text((45, 92), u'End:   ' + str(self.ris2), 0xffffff)
  72.  
  73.  
  74.             self.canvas.blit(self.img)
  75.             self.vlock.release()
  76.  
  77. if __name__ == '__main__':
  78.  
  79.     main = Main()

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