lib/prawn/font_metric_cache.rb in prawn-2.0.1 vs lib/prawn/font_metric_cache.rb in prawn-2.0.2
- old
+ new
@@ -6,41 +6,37 @@
#
# This is free software. Please see the LICENSE and COPYING files for details.
#
module Prawn
-
# Cache used internally by Prawn::Document instances to calculate the width
# of various strings for layout purposes.
#
# @private
class FontMetricCache
+ CacheEntry = Struct.new(:font, :options, :string)
- CacheEntry = Struct.new( :font, :options, :string )
-
- def initialize( document )
+ def initialize(document)
@document = document
@cache = {}
end
- def width_of( string, options )
+ def width_of(string, options)
f = if options[:style]
# override style with :style => :bold
@document.find_font(@document.font.family, :style => options[:style])
else
@document.font
end
- key = CacheEntry.new( f, options, string )
+ key = CacheEntry.new(f, options, string)
unless length = @cache[ key ]
length = @cache[ key ] = f.compute_width_of(string, options)
end
length +
(@document.character_spacing * @document.font.character_count(string))
end
-
end
-
end