Add ttystatus.Integer.

3 files changed, 75 insertions, 0 deletions

diff --git a/ttystatus/__init__.py b/ttystatus/__init__.py
index 8194184..205824d 100644
--- a/ttystatus/__init__.py
+++ b/ttystatus/__init__.py
@@ -22,6 +22,7 @@ from widget import Widget
 
 from literal import Literal
 from string import String
+from integer import Integer
 from pathname import Pathname
 from bytesize import ByteSize
 from counter import Counter
diff --git a/ttystatus/integer.py b/ttystatus/integer.py
new file mode 100644
index 0000000..b86dbe0
--- /dev/null
+++ b/ttystatus/integer.py
@@ -0,0 +1,37 @@
+# Copyright 2011  Lars Wirzenius
+# 
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+# 
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+# 
+# You should have received a copy of the GNU General Public License
+# along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+
+import ttystatus
+
+
+class Integer(ttystatus.Widget):
+
+    '''Display a value as an integer.'''
+    
+    def __init__(self, key):
+        self._key = key
+        self.interesting_keys = [key]
+        self.value = '#'
+
+    def format(self):
+        return self.value
+        
+    def update(self, master, width):
+        try:
+            self.value = str(int(master[self._key]))
+        except ValueError:
+            self.value = '#'
+
diff --git a/ttystatus/integer_tests.py b/ttystatus/integer_tests.py
new file mode 100644
index 0000000..a3f04fe
--- /dev/null
+++ b/ttystatus/integer_tests.py
@@ -0,0 +1,37 @@
+# Copyright 2010  Lars Wirzenius
+# 
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+# 
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+# 
+# You should have received a copy of the GNU General Public License
+# along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+
+import unittest
+
+import ttystatus
+
+
+class IntegerTests(unittest.TestCase):
+
+    def setUp(self):
+        self.w = ttystatus.Integer('foo')
+
+    def test_is_error_initially(self):
+        self.assertEqual(str(self.w), '#')
+        
+    def test_updates(self):
+        self.w.update({'foo': 123}, 999)
+        self.assertEqual(str(self.w), '123')
+        
+    def test_becomes_error_symbol_if_value_is_not_integer(self):
+        self.w.update({'foo': 'bar'}, 999)
+        self.assertEqual(str(self.w), '#')
+