Make the power module an optional dependency

If power module is not loadable, then all it will affect is the
warning label about the PC being on battery vs. AC power in the print
window.

diff --git a/Cura/gui/printWindow.py b/Cura/gui/printWindow.py
index b6a7a4c498abc74e5b9ea5e66120ad64fe000142..70d5fc8d614796a4738a72ebfb3bcdfb98298ac5 100644 (file)
--- a/Cura/gui/printWindow.py
+++ b/Cura/gui/printWindow.py
@@ -2,7 +2,10 @@ __copyright__ = "Copyright (C) 2013 David Braam - Released under terms of the AG
 
 import wx
 from wx.lib.intctrl import IntCtrl
-import power
+try:
+       import power
+except:
+       power = None
 import time
 import sys
 import os
@@ -447,7 +450,10 @@ class printWindowBasic(wx.Frame):
                        style=wx.ALIGN_CENTER)
                self.powerWarningText.SetBackgroundColour('red')
                self.powerWarningText.SetForegroundColour('white')
-               self.powerManagement = power.PowerManagement()
+               if power:
+                       self.powerManagement = power.PowerManagement()
+               else:
+                       self.powerManagement = None
                self.powerWarningTimer = wx.Timer(self)
                self.Bind(wx.EVT_TIMER, self.OnPowerWarningChange, self.powerWarningTimer)
                self.OnPowerWarningChange(None)
@@ -498,6 +504,8 @@ class printWindowBasic(wx.Frame):
                        self._printerConnection.openActiveConnection()
 
        def OnPowerWarningChange(self, e):
+               if self.powerManagement is None:
+                       return
                type = self.powerManagement.get_providing_power_source_type()
                if type == power.POWER_TYPE_AC and self.powerWarningText.IsShown():
                        self.powerWarningText.Hide()