lib/tamashii/agent/device/lcd.rb in tamashii-agent-0.2.5 vs lib/tamashii/agent/device/lcd.rb in tamashii-agent-0.2.6

@@ -4,10 +4,11 @@
   module Agent
     module Device
       # :nodoc:
       class LCD
         WIDTH = 16
+        LINE_COUNT = 2
 
         OP_CHR = 1
         OP_CMD = 0
 
         LINES  = [
@@ -39,20 +40,24 @@
           sleep(DELAY)
         end
 
         def print_message(message)
           lines = message.lines.map{|l| l.delete("\n")}
-          2.times.each { |line| print_line(lines[line], LINES[line]) }
+          LINE_COUNT.times.each { |line| print_line(lines[line], line) }
         end
 
+        def print_line(message, line)
+          write_line(message, LINES[line])
+        end
+
         private
 
         def backlight_mode
           return BACKLIGHT_ON if @backlight
           BACKLIGHT_OFF
         end
 
-        def print_line(message, line)
+        def write_line(message, line)
           message = '' unless message
           message = message.ljust(WIDTH, ' ')
           byte(line, OP_CMD)
           WIDTH.times.each { |pos| byte(message[pos].ord, OP_CHR) }
         end