lib/zebra/epl/label.rb in zebra-epl-0.0.2 vs lib/zebra/epl/label.rb in zebra-epl-0.0.5

@@ -5,11 +5,11 @@
     class Label
       class InvalidPrintSpeedError     < StandardError; end
       class InvalidPrintDensityError   < StandardError; end
       class PrintSpeedNotInformedError < StandardError; end
 
-      attr_reader :elements
+      attr_reader :elements, :tempfile
       attr_accessor :width, :length, :gap, :print_speed, :print_density
 
       def initialize(options = {})
         options.each_pair { |key, value| self.__send__("#{key}=", value) if self.respond_to?("#{key}=") }
         @elements = []
@@ -61,10 +61,15 @@
 
       def persist
         tempfile = Tempfile.new "zebra_label"
         dump_contents tempfile
         tempfile.rewind
+        @tempfile = tempfile
         tempfile
+      end
+
+      def persisted?
+        !!self.tempfile
       end
 
       private
 
       def check_required_configurations