Add PercentDone widget.

3 files changed, 69 insertions, 0 deletions

diff --git a/ttystatus/__init__.py b/ttystatus/__init__.py
index 60a29c5..11c6f72 100644
--- a/ttystatus/__init__.py
+++ b/ttystatus/__init__.py
@@ -26,3 +26,4 @@ from pathname import Pathname
 from bytesize import ByteSize
 from counter import Counter
 from index import Index
+from percent import PercentDone
diff --git a/ttystatus/percent.py b/ttystatus/percent.py
new file mode 100644
index 0000000..6b3d1d5
--- /dev/null
+++ b/ttystatus/percent.py
@@ -0,0 +1,35 @@
+# 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 ttystatus
+
+
+class PercentDone(ttystatus.Widget):
+
+    '''Display percent of task done.'''
+    
+    def __init__(self, done_name, total_name, decimals=0):
+        self.done_name = done_name
+        self.total_name = total_name
+        self.decimals = decimals
+        self.value = self.format(0, 1)
+        
+    def format(self, done, total):
+        return '%.*f %%' % (self.decimals, 100.0 * float(done) / total)
+        
+    def update(self, master, width):
+        self.value = self.format(master[self.done_name], 
+                                 master[self.total_name])
diff --git a/ttystatus/percent_tests.py b/ttystatus/percent_tests.py
new file mode 100644
index 0000000..15a907a
--- /dev/null
+++ b/ttystatus/percent_tests.py
@@ -0,0 +1,33 @@
+# 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 PercentDoneTests(unittest.TestCase):
+
+    def setUp(self):
+        self.w = ttystatus.PercentDone('done', 'total', decimals=1)
+
+    def test_shows_zero_value_initially(self):
+        self.assertEqual(str(self.w), '0.0 %')
+
+    def test_sets_value(self):
+        self.w.update({ 'done': 50, 'total': 100 }, 999)
+        self.assertEqual(str(self.w), '50.0 %')
+