1 files changed, 15 insertions, 0 deletions
diff --git a/lib/roo/formatters/base.rb b/lib/roo/formatters/base.rb
new file mode 100644
index 0000000..2d32d6d
--- /dev/null
+++ b/lib/roo/formatters/base.rb
@@ -0,0 +1,15 @@
+module Roo
+  module Formatters
+    module Base
+      # converts an integer value to a time string like '02:05:06'
+      def integer_to_timestring(content)
+        h = (content / 3600.0).floor
+        content -= h * 3600
+        m = (content / 60.0).floor
+        content -= m * 60
+        s = content
+        Kernel.format("%02d:%02d:%02d", h, m, s)
+      end
+    end
+  end
+end