work on the string representations for parameters (large vectors could be too much...

[debian/gnuradio] / grc / python / Param.py

diff --git a/grc/python/Param.py b/grc/python/Param.py
index e04bc8fcb587589effbc2bcfef2fc61085bfba69..6dd008d1d04b5ce181631f275c5be5bc1d997102 100644 (file)
--- a/grc/python/Param.py
+++ b/grc/python/Param.py
@@ -1,5 +1,5 @@
 """
-Copyright 2008, 2009 Free Software Foundation, Inc.
+Copyright 2008, 2009, 2010 Free Software Foundation, Inc.
 This file is part of GNU Radio
 
 GNU Radio Companion is free software; you can redistribute it and/or
@@ -108,7 +108,23 @@ class Param(_Param, _GUIParam):
                Get the repr (nice string format) for this param.
                @return the string representation
                """
-               if not self.is_valid(): return self.get_value()
+               ##################################################
+               # truncate helper method
+               ##################################################
+               def _truncate(string, style=0):
+                       max_len = max(27 - len(self.get_name()), 3)
+                       if len(string) > max_len:
+                               if style < 0: #front truncate
+                                       string = '...' + string[3-max_len:]
+                               elif style == 0: #center truncate
+                                       string = string[:max_len/2 -3] + '...' + string[-max_len/2:]
+                               elif style > 0: #rear truncate
+                                       string = string[:max_len-3] + '...'
+                       return string
+               ##################################################
+               # simple conditions
+               ##################################################
+               if not self.is_valid(): return _truncate(self.get_value())
                if self.get_value() in self.get_option_keys(): return self.get_option(self.get_value()).get_name()
                ##################################################
                # display logic for numbers
@@ -126,7 +142,6 @@ class Param(_Param, _GUIParam):
                # split up formatting by type
                ##################################################
                truncate = 0 #default center truncate
-               max_len = max(27 - len(self.get_name()), 3)
                e = self.get_evaluated()
                t = self.get_type()
                if isinstance(e, bool): return str(e)
@@ -141,16 +156,9 @@ class Param(_Param, _GUIParam):
                        truncate = -1
                else: dt_str = str(e) #other types
                ##################################################
-               # truncate
+               # done
                ##################################################
-               if len(dt_str) > max_len:
-                       if truncate < 0: #front truncate
-                               dt_str = '...' + dt_str[3-max_len:]
-                       elif truncate == 0: #center truncate
-                               dt_str = dt_str[:max_len/2 -3] + '...' + dt_str[-max_len/2:]
-                       elif truncate > 0: #rear truncate
-                               dt_str = dt_str[:max_len-3] + '...'
-               return dt_str
+               return _truncate(dt_str, truncate)
 
        def get_input(self, *args, **kwargs):
                if self.get_type() in ('file_open', 'file_save'): return FileParam(self, *args, **kwargs)