made aspect ratio accurate

[lilass.git] / screen.py

diff --git a/screen.py b/screen.py
index f9bef55740804effac631a19b7d00b2b3f290eaa..b0c657737403be53b1a05ec7b4edef227b76f19c 100644 (file)
--- a/screen.py
+++ b/screen.py
@@ -18,6 +18,7 @@
 
 import re, subprocess
 from enum import Enum
+from fractions import Fraction
 
 ## utility functions
 
@@ -66,13 +67,8 @@ class Resolution:
     
     def __str__(self):
         # get ratio
-        ratio = int(round(16.0*self.height/self.width))
-        if ratio == 12: # 16:12 = 4:3
-            strRatio = '4:3'
-        elif ratio == 13: # 16:12.8 = 5:4
-            strRatio = '5:4'
-        else: # let's just hope this will never be 14 or more...
-            strRatio = '16:%d' % ratio
+        ratio = Fraction(self.width, self.height) # automatically divides by the gcd
+        strRatio = "%d:%d" % (ratio.numerator, ratio.denominator)
         return '%dx%d (%s)' %(self.width, self.height, strRatio)
     
     def __repr__(self):