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2008-11-14Python

232

Python:WxPython实现windows托盘图标(tray)

  1. import wx
  2. import string
  3. import sys
  4.  
  5. ID_ICON_TIMER = wx.NewId()

##
# The IconBar class
#

  1. class IconBar:
  2.  
  3.     ##
  4.     # \brief the constructor default left: red, default right: green
  5.     #
  6.     def __init__(self,l_off=[128,0,0],l_on=[255,0,0],r_off=[0,128,0],r_on=[0,255,0]):
  7.         self.s_line = "\xff\xff\xff"+"\0"*45
  8.         self.s_border = "\xff\xff\xff\0\0\0"
  9.         self.s_point = "\0"*3
  10.         self.sl_off = string.join(map(chr,l_off),'')*6
  11.         self.sl_on = string.join(map(chr,l_on),'')*6
  12.         self.sr_off = string.join(map(chr,r_off),'')*6
  13.         self.sr_on = string.join(map(chr,r_on),'')*6
  14.  
  15.     ##
  16.     # \brief gets a new icon with 0 <= l,r <= 5
  17.     #
  18.     def Get(self,l,r):
  19.         s=""+self.s_line
  20.         for i in range(5):
  21.             if i<(5-l):
  22.                 sl = self.sl_off
  23.             else:
  24.                 sl = self.sl_on
  25.  
  26.             if i<(5-r):
  27.                 sr = self.sr_off
  28.             else:
  29.                 sr = self.sr_on
  30.  
  31.             s+=self.s_border+sl+self.s_point+sr+self.s_point
  32.             s+=self.s_border+sl+self.s_point+sr+self.s_point
  33.             s+=self.s_line
  34.  
  35.         image = wx.EmptyImage(16,16)
  36.         image.SetData(s)
  37.  
  38.         bmp = image.ConvertToBitmap()
  39.         bmp.SetMask(wx.Mask(bmp, wx.WHITE)) #sets the transparency colour to white
  40.  
  41.         icon = wx.EmptyIcon()
  42.         icon.CopyFromBitmap(bmp)
  43.  
  44.         return icon
  45.  
  46. ##
  47. # The TaskBarIcon class
  48. #
  49. class MyTaskBarIcon(wx.TaskBarIcon):
  50.  
  51.     l = 0
  52.     r = 0
  53.  
  54.     ##
  55.     # \brief the constructor
  56.     #
  57.     def __init__(self, frame):
  58.         wx.TaskBarIcon.__init__(self)
  59.         self.frame = frame
  60.         self.IconBar = IconBar((127,127,0),(255,255,0),(0,127,127),(0,255,255))
  61.         self.SetIconBar(self.l,self.r)
  62.  
  63.     ##
  64.     # \brief sets the icon timer
  65.     #
  66.     def SetIconTimer(self):
  67.         self.icon_timer = wx.Timer(self, ID_ICON_TIMER)
  68.         wx.EVT_TIMER(self, ID_ICON_TIMER, self.BlinkIcon)
  69.         self.icon_timer.Start(100)
  70.  
  71.     ##
  72.     # \brief blinks the icon and updates self.l and self.r
  73.     #
  74.     def BlinkIcon(self, event):
  75.         self.SetIconBar(self.l,self.r)
  76.         self.l += 1
  77.         if self.l > 5:
  78.             self.l = 0
  79.             self.r += 1
  80.             if self.r > 5:
  81.                 self.r = 0
  82.     ##
  83.     # \brief sets the icon bar and a message
  84.     #
  85.     def SetIconBar(self,l,r):
  86.         icon = self.IconBar.Get(l,r)
  87.         self.SetIcon(icon, "L:%d,R:%d"%(l,r))
  88.  
  89. ##
  90. # The task bar application
  91. #
  92. class TaskBarApp(wx.Frame):
  93.  
  94.     ##
  95.     # \brief the constructor
  96.     #
  97.     def __init__(self, parent, id, title):
  98.         wx.Frame.__init__(self, parent, -1, title, size = (1, 1),
  99.             style=wx.FRAME_NO_TASKBAR|wx.NO_FULL_REPAINT_ON_RESIZE)
  100.  
  101.         self.tbicon = MyTaskBarIcon(self)
  102.         self.tbicon.SetIconTimer()
  103.  
  104.         self.Show(True)
  105.  
  106. ##
  107. # The main application wx.App class
  108. #
  109. class MyApp(wx.App):
  110.     def OnInit(self):
  111.         frame = TaskBarApp(None, -1, ' ')
  112.         frame.Center(wx.BOTH)
  113.         frame.Show(False)
  114.         return True
  115.  
  116. def main(argv=None):
  117.     if argv is None:
  118.         argv = sys.argv
  119.  
  120.     app = MyApp(0)
  121.     app.MainLoop()
  122.  
  123. if __name__ == '__main__':
  124.     main()

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