Source Code for Module gui.errors

 1  ############################################################################### 
 2  #                                                                             # 
 3  # Copyright (C) 2011 Edward d'Auvergne                                        # 
 4  #                                                                             # 
 5  # This file is part of the program relax (http://www.nmr-relax.com).          # 
 6  #                                                                             # 
 7  # This program is free software: you can redistribute it and/or modify        # 
 8  # it under the terms of the GNU General Public License as published by        # 
 9  # the Free Software Foundation, either version 3 of the License, or           # 
10  # (at your option) any later version.                                         # 
11  #                                                                             # 
12  # This program is distributed in the hope that it will be useful,             # 
13  # but WITHOUT ANY WARRANTY; without even the implied warranty of              # 
14  # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the               # 
15  # GNU General Public License for more details.                                # 
16  #                                                                             # 
17  # You should have received a copy of the GNU General Public License           # 
18  # along with this program.  If not, see <http://www.gnu.org/licenses/>.       # 
19  #                                                                             # 
20  ############################################################################### 
21   
22  # Module docstring. 
23  """Module for handling errors in the GUI.""" 
24   
25  # Python module imports. 
26  import sys 
27  import wx 
28   
29  # relax module imports. 
30  from status import Status; status = Status() 
31   
32   
33 -def gui_raise(relax_error, raise_flag=False): 
34      """Handle errors in the GUI to be reported to the user. 
35   
36      @param relax_error:     The error object. 
37      @type relax_error:      RelaxError instance 
38      @keyword raise_flag:    A flag which if True will cause the error to be raised, terminating execution. 
39      @type raise_flag:       bool 
40      @raises RelaxError:     This raises all RelaxErrors, if the raise flag is given. 
41      """ 
42   
43      # Turn off the busy cursor if needed. 
44      if wx.IsBusy(): 
45          wx.EndBusyCursor() 
46   
47      # Non-fatal - the error is not raised so just send the text to STDERR, flushing the buffer to update the controller. 
48      if not raise_flag: 
49          sys.stderr.write(relax_error.__str__()) 
50          sys.stderr.write("\n") 
51          sys.stderr.flush() 
52   
53      # Show the relax controller (so that the window doesn't hide the dialog). 
54      app = wx.GetApp() 
55      app.gui.show_controller(None) 
56      app.Yield(True) 
57   
58      # Show a dialog explaining the error. 
59      dlg = wx.MessageDialog(None, relax_error.text, caption="RelaxError", style=wx.OK|wx.ICON_ERROR) 
60      if status.show_gui: 
61          dlg.ShowModal() 
62   
63      # Throw the error to terminate execution. 
64      if raise_flag: 
65          raise relax_error 
66