lib/bulldog/style.rb in bulldog-0.1.1 vs lib/bulldog/style.rb in bulldog-0.2.0

@@ -1,10 +1,14 @@
 module Bulldog
+  #
+  # Represents a style to generate.
+  #
   class Style
     def initialize(name, attributes={})
       @name = name
       @attributes = attributes
+      set_dimensions(attributes[:size])
     end
 
     attr_reader :name, :attributes
 
     #
@@ -13,11 +17,16 @@
     delegate :[], :to => :attributes
 
     #
     # Set the value of the given style attribute.
     #
-    delegate :[]=, :to => :attributes
+    def []=(name, value)
+      if name == :size
+        set_dimensions(value)
+      end
+      attributes[name] = value
+    end
 
     #
     # Return true if the argument is a Style with the same name and
     # attributes.
     #
@@ -30,9 +39,27 @@
     def inspect
       "#<Style #{name.inspect} #{attributes.inspect}>"
     end
 
     delegate :hash, :eql?, :to => :name
+
+    #
+    # The [width, height] specified by :size, or nil if there is no :size.
+    #
+    attr_reader :dimensions
+
+    #
+    # Return true if :filled is true, false otherwise.
+    #
+    def filled?
+      !!self[:filled]
+    end
+
+    private
+
+    def set_dimensions(value)
+      @dimensions = value ? value.scan(/\A(\d+)x(\d+)\z/).first.map{|s| s.to_i} : nil
+    end
 
     ORIGINAL = new(:original, {})
   end
 end