Implementing initial layout functionality

lib/squib/api/image.rb

@@ -16,7 +16,7 @@ module Squib
     # @return [nil] Returns nil
     # @api public
     def png(opts = {})
-      opts = needs(opts, [:range, :files, :x, :y, :alpha])
+      opts = needs(opts, [:range, :files, :x, :y, :alpha, :layout])
       opts[:range].each do |i| 
         @cards[i].png(opts[:file][i], opts[:x], opts[:y], opts[:alpha]) 
       end
@@ -37,7 +37,7 @@ module Squib
     # @return [nil] Returns nil
     # @api public
     def svg(opts = {})
-      p = needs(opts,[:range, :files, :svgid, :x, :y, :width, :height])
+      p = needs(opts,[:range, :files, :svgid, :x, :y, :width, :height, :layout])
       p[:range].each do |i| 
         @cards[i].svg(p[:file][i], p[:id], p[:x], p[:y], p[:width], p[:height]) 
       end

lib/squib/api/shapes.rb

@@ -20,7 +20,7 @@ module Squib
     # @api public
     def rect(opts = {})
       opts = needs(opts, [:range, :x, :y, :width, :height, :radius, 
-                          :fill_color, :stroke_color, :stroke_width])
+                          :fill_color, :stroke_color, :stroke_width, :layout])
       opts[:range].each do |i|
         @cards[i].rect(opts[:x], opts[:y], opts[:width], opts[:height], 
           opts[:x_radius], opts[:y_radius], 

lib/squib/api/text.rb

@@ -34,7 +34,7 @@ module Squib
     # @api public
     def text(opts = {})
       opts = needs(opts, [:range, :str, :font, :x, :y, :width, :height, :text_color, :wrap,
-                          :align, :justify, :valign, :ellipsize, :hint])
+                          :align, :justify, :valign, :ellipsize, :hint, :layout])
       opts[:str] = [opts[:str]] * @cards.size unless opts[:str].respond_to? :each
       opts[:range].each do |i|
         @cards[i].text(opts[:str][i], opts[:font], opts[:x], opts[:y], opts[:color], opts)