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Add retina @2x support. #18

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Add retina @2x support. #18

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50 changes: 36 additions & 14 deletions lib/css_sprite/sprite.rb
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Original file line number Diff line number Diff line change
Expand Up @@ -77,7 +77,7 @@ def scss?
# detect all the css sprite directories. e.g. app/assets/images/css_sprite, app/assets/images/widget_css_sprite
def css_sprite_directories
Dir.entries(@image_path).collect do |d|
File.join(@image_path, d) if File.directory?(File.join(@image_path, d)) and d =~ /css_sprite$/
File.join(@image_path, d) if File.directory?(File.join(@image_path, d)) and d =~ /css_sprite(@2x)?$/
end.compact
end

Expand Down Expand Up @@ -144,16 +144,24 @@ def output_css(directory, results)

f.print class_names(results).join(",\n")
if @config['css_images_path_relative']
f.print " \{\n background: url('#{@css_images_path}/#{dest_image_name}?#{dest_image_time.to_i}') no-repeat;\n\}\n"
f.print " \{\n background: url('#{@css_images_path}/#{dest_image_name}?#{dest_image_time.to_i}') no-repeat;\n"
else
f.print " \{\n background: url('/#{@css_images_path}/#{dest_image_name}?#{dest_image_time.to_i}') no-repeat;\n\}\n"
f.print " \{\n background: url('/#{@css_images_path}/#{dest_image_name}?#{dest_image_time.to_i}') no-repeat;\n"
end

scale = 1
if directory.match(/@2x/)
f.print " background-size: #{(get_image(dest_image_path(directory))[:width]/2).to_s + 'px'};\n"
scale = 2
end

f.print "\}\n"

results.each do |result|
f.print "#{class_name(result[:name])} \{"
f.print " background-position: #{-result[:x]}px #{-result[:y]}px;"
f.print " width: #{result[:width]}px;" if result[:width]
f.print " height: #{result[:height]}px;" if result[:height]
f.print " background-position: #{-result[:x]/scale}px #{-result[:y]/scale}px;"
f.print " width: #{result[:width]/scale}px;" if result[:width]
f.print " height: #{result[:height]/scale}px;" if result[:height]
f.print " \}\n"
end
end
Expand Down Expand Up @@ -186,11 +194,17 @@ def output_sass(directory, results)
f.print " \n background: url('/#{@css_images_path}/#{dest_image_name}?#{dest_image_time.to_i}') no-repeat\n"
end

scale = 1
if directory.match(/@2x/)
f.print " background-size: #{(get_image(dest_image_path(directory))[:width]/2).to_s + 'px'};\n"
scale = 2
end

results.each do |result|
f.print "#{class_name(result[:name])}\n"
f.print " background-position: #{-result[:x]}px #{-result[:y]}px\n"
f.print " width: #{result[:width]}px\n" if result[:width]
f.print " height: #{result[:height]}px\n" if result[:height]
f.print " background-position: #{-result[:x]/scale}px #{-result[:y]/scale}px\n"
f.print " width: #{result[:width]/scale}px\n" if result[:width]
f.print " height: #{result[:height]/scale}px\n" if result[:height]
end
end
end
Expand All @@ -217,16 +231,24 @@ def output_scss(directory, results)

f.print class_names(results).join(",\n")
if @config['use_asset_url']
f.print " \{\n background: asset-url('#{dest_image_name}', image) no-repeat;\n\}\n"
f.print " \{\n background: asset-url('#{dest_image_name}', image) no-repeat;\n"
else
f.print " \{\n background: url('/#{@css_images_path}/#{dest_image_name}?#{dest_image_time.to_i}') no-repeat;\n\}\n"
f.print " \{\n background: url('/#{@css_images_path}/#{dest_image_name}?#{dest_image_time.to_i}') no-repeat;\n"
end

scale = 1
if directory.match(/@2x/)
f.print " background-size: #{(get_image(dest_image_path(directory))[:width]/2).to_s + 'px'};\n"
scale = 2
end

f.print "\}\n"

results.each do |result|
f.print "#{class_name(result[:name])} \{\n"
f.print " background-position: #{-result[:x]}px #{-result[:y]}px;\n"
f.print " width: #{result[:width]}px;\n" if result[:width]
f.print " height: #{result[:height]}px;\n" if result[:height]
f.print " background-position: #{-result[:x]/scale}px #{-result[:y]/scale}px;\n"
f.print " width: #{result[:width]/scale}px;\n" if result[:width]
f.print " height: #{result[:height]/scale}px;\n" if result[:height]
f.print " \}\n"
end
end
Expand Down