r13570 - /branches/gui_testing/gui/misc.py -- July 13, 2011 - 10:05

Author: bugman
Date: Wed Jul 13 10:05:11 2011
New Revision: 13570

URL: http://svn.gna.org/viewcvs/relax?rev=13570&view=rev
Log:
Created the protected_exec() function for catching RelaxErrors.

This function applies a given function, displays a dialog if a RelaxError 
occurs, and returns the
status of execution.


Modified:
    branches/gui_testing/gui/misc.py

Modified: branches/gui_testing/gui/misc.py
URL: 
http://svn.gna.org/viewcvs/relax/branches/gui_testing/gui/misc.py?rev=13570&r1=13569&r2=13570&view=diff
==============================================================================
--- branches/gui_testing/gui/misc.py (original)
+++ branches/gui_testing/gui/misc.py Wed Jul 13 10:05:11 2011
@@ -1,7 +1,7 @@
 
###############################################################################
 #                                                                            
 #
 # Copyright (C) 2009 Michael Bieri                                           
 #
-# Copyright (C) 2010 Edward d'Auvergne                                       
 #
+# Copyright (C) 2010-2011 Edward d'Auvergne                                  
 #
 #                                                                            
 #
 # This file is part of the program relax.                                    
 #
 #                                                                            
 #
@@ -28,6 +28,9 @@
 from math import pow
 from string import split
 import wx
+
+# relax module imports.
+from relax_errors import AllRelaxErrors
 
 
 def add_border(box, border=0, packing=wx.VERTICAL):
@@ -210,6 +213,33 @@
     return str(string)
 
 
+def protected_exec(fn, *args, **kargs):
+    """Apply the given function, catching all RelaxErrors.
+
+    All args and keyword args supplied will be directly applied to the given 
function.
+
+    @param fn:      The function to apply.
+    @type fn:       func
+    @return:        The status of execution.
+    @rtype:         bool
+    """
+
+    # Apply the function.
+    try:
+        apply(fn, args, kargs)
+
+    # Catch RelaxErrors.
+    except AllRelaxErrors, instance:
+        # Display a dialog with the error.
+        error_message(instance.text, instance.__class__.__name__)
+
+        # Failure.
+        return False
+
+    # Success.
+    return True
+
+
 def str_to_gui(string):
     """Convert the string into the GUI string.