Updating default class separator to be dash instead of underscore

README.md

@@ -93,8 +93,9 @@ Configuration of `sprite` is done via `config/sprite.yml`. It allows you to set
   - `output_path:` defines the file path where your style settings get written (defaults to `public/stylesheets/sprites`). the file extension not needed as it will be set based on the `style:` setting 
   - `image_output_path:` defines the folder path where the combined sprite images files are written (defaults to `public/images/sprites/`)
   - `source_path:` defines the folder where source image files are read from (defaults to `public/images/`)
+  - `sprites_class:` defines the class name that gets added to all sprite stylesheet rules (defaults to `sprites`)
   - `default_format:` defines the default file image format of the generated files. (defaults to `png`)
-  - `class_separator:` used within the generated class names between the image name and sprite name (defaults to `_`)
+  - `class_separator:` used to generated the class name by separating the image name and sprite name (defaults to `-`)
 
 * `images:` section provides an array of configurations which define which image files are built, and where they get their sprites from. each image setup provides the following config options:
   - `name:` name of image (required)
@@ -114,7 +115,8 @@ you can define any number of destination image files.
       output_path: public/sass/mixins/sprites.sass
       image_output_path: public/images/sprites/
       source_path: public/images/
-      class_separator: '_'
+      sprites_class: 'sprites'
+      class_separator: '-'
       default_format: png
 
     # defines what sprite collections get created

lib/sprite/builder.rb

@@ -71,7 +71,7 @@ def output_image(image)
           x = 0
           y = dest_image.rows + spaced_by
         end
-        results << combiner.image_properties(source_image).merge(:x => x, :y => y)
+        results << combiner.image_properties(source_image).merge(:x => x, :y => y, :group => name)
         dest_image = combiner.composite_images(dest_image, source_image, x, y)
       end
       @output[name] = results
@@ -89,11 +89,14 @@ def output_file
       path = output_path("css")
       FileUtils.mkdir_p(File.dirname(path))
 
+      # set up class_name to append to each rule
+      sprites_class = config['sprites_class'] ? ".#{config['sprites_class']}" : ""
+
       # write stylesheet file to disk
       File.open(path, 'w') do |f|
         @output.each do |dest, results|
           results.each do |result|
-            f.puts ".#{result[:name]} {"
+            f.puts "#{sprites_class}.#{result[:group]}#{config['class_separator']}#{result[:name]} {"
             f.puts "  background: url('/images/#{dest}') no-repeat #{result[:x]}px #{result[:y]}px;"
             f.puts "  width: #{result[:width]}px;"
             f.puts "  height: #{result[:height]}px;"
@@ -115,12 +118,13 @@ def image_path(name, format)
 
     # sets all the default values on the config
     def set_config_defaults
-      @config['style']             ||= 'css'
-      @config['output_path']       ||= 'public/stylesheets/sprites'
-      @config['image_output_path'] ||= 'public/images/sprites/'
-      @config['source_path']       ||= 'public/images/'
-      @config['default_format']    ||= 'png'
-      @config['class_separator']   ||= '_'
+      @config['style']              ||= 'css'
+      @config['output_path']        ||= 'public/stylesheets/sprites'
+      @config['image_output_path']  ||= 'public/images/sprites/'
+      @config['source_path']        ||= 'public/images/'
+      @config['default_format']     ||= 'png'
+      @config['class_separator']    ||= '-'
+      @config["sprites_class"] ||= 'sprites'
     end
 
     # expands out sources, taking the Glob paths and turning them into separate entries in the array

spec/resources/configs/android_icons.yml → spec/resources/configs/android-icons.yml

@@ -1,16 +1,16 @@
 config:
   style: css
-  output_path: output/stylesheets/android_icons
+  output_path: output/stylesheets/android-icons
   image_output_path: output/images/sprites/
   source_path: resources/images/
-  class_separator: '_'
+  class_separator: '-'
   default_format: png
 
 # defines what sprite collections get created
 images:    
-  - name: android_icons
+  - name: android-icons
     format: png
     align: vertical
     spaced_by: 50
     sources:
-      - android_icons/*.png
+      - android-icons/*.png

spec/resources/configs/config_test.yml → spec/resources/configs/config-test.yml

@@ -3,22 +3,22 @@ config:
   output_path: output/stylesheets/sprites
   image_output_path: output/images/sprites/
   source_path: resources/images/
-  class_separator: '_'
+  class_separator: '-'
   default_format: png
 
 # defines what sprite collections get created
 images:    
-  - name: android_icons
+  - name: android-icons
     format: png
     align: vertical
     spaced_by: 50
     sources:
-      - android_icons/*.png
+      - android-icons/*.png
 
   - name: topics
     format: gif
     align: vertical
     spaced_by: 50
     sources:
-      - topics/good_topic.gif
-      - topics/mid_topic.gif
+      - topics/good-topic.gif
+      - topics/mid-topic.gif

spec/sprite/builder_spec.rb

@@ -4,11 +4,11 @@
 
   context "configuration parsing" do
     before(:all) do
-      @sprite = Sprite::Builder.from_config("resources/configs/config_test.yml")
+      @sprite = Sprite::Builder.from_config("resources/configs/config-test.yml")
     end 
 
     it "should load the settings keys from file" do
-      @sprite.config.keys.size.should == 6
+      @sprite.config.keys.size.should == 7
     end
 
     it "should load the image keys from file" do
@@ -46,30 +46,34 @@
       @sprite.config['default_format'].should == "png"
     end
 
-    it "'class_separator:' setting should default to '_'" do
-      @sprite.config['class_separator'].should == "_"
+    it "'sprites_class:' setting should default to 'sprites'" do
+      @sprite.config['sprites_class'].should == "sprites"
+    end
+
+    it "'class_separator:' setting should default to '-'" do
+      @sprite.config['class_separator'].should == "-"
     end    
   end
 
   context "generate android icon sprites" do
     before(:all) do
       clear_output
-      @sprite = Sprite::Builder.from_config("resources/configs/android_icons.yml")
+      @sprite = Sprite::Builder.from_config("resources/configs/android-icons.yml")
       @sprite.build
     end
 
     it "should generate android.png" do
-      File.exists?("#{Sprite.root}/output/images/sprites/android_icons.png").should be_true
+      File.exists?("#{Sprite.root}/output/images/sprites/android-icons.png").should be_true
     end
 
-    it "should generate android_icons.css" do
-      File.exists?("#{Sprite.root}/output/stylesheets/android_icons.css").should be_true
+    it "should generate android-icons.css" do
+      File.exists?("#{Sprite.root}/output/stylesheets/android-icons.css").should be_true
     end
 
     context "sprite result image" do
       before(:all) do
         combiner = Sprite::ImageCombiner.new
-        @result_image = combiner.get_image("#{Sprite.root}/output/images/sprites/android_icons.png")
+        @result_image = combiner.get_image("#{Sprite.root}/output/images/sprites/android-icons.png")
         @result_properties = combiner.image_properties(@result_image)
       end
 
@@ -81,7 +85,7 @@
 
     context "sprite result styles" do
       before(:all) do
-        @styles = File.read("#{Sprite.root}/output/stylesheets/android_icons.css")
+        @styles = File.read("#{Sprite.root}/output/stylesheets/android-icons.css")
       end
 
       it "should have some styles in it" do

spec/sprite/image_combiner_spec.rb

@@ -6,36 +6,36 @@
     @combiner = Sprite::ImageCombiner.new
 
     @image_paths = {
-      :good_topic => "#{Sprite.root}/resources/images/topics/good_topic.gif",
-      :mid_topic => "#{Sprite.root}/resources/images/topics/mid_topic.gif"
+      :good => "#{Sprite.root}/resources/images/topics/good-topic.gif",
+      :mid => "#{Sprite.root}/resources/images/topics/mid-topic.gif"
     }
   end
 
   context "image handling" do
     context "get_image" do
       it "should get a image" do
-        @combiner.get_image(@image_paths[:good_topic]).class.should == Magick::Image
+        @combiner.get_image(@image_paths[:good]).class.should == Magick::Image
       end
     end
 
     context "image_properties" do
       it "should get image properties" do
-        image = @combiner.get_image(@image_paths[:good_topic])
-        @combiner.image_properties(image).should == {:name => 'good_topic', :width => 20, :height => 19}
+        image = @combiner.get_image(@image_paths[:good])
+        @combiner.image_properties(image).should == {:name => 'good-topic', :width => 20, :height => 19}
       end
     end
 
     context "composite_images" do
       it "should composite two images into one horizontally" do
-        image1 = @combiner.get_image(@image_paths[:good_topic])
-        image2 = @combiner.get_image(@image_paths[:mid_topic])
+        image1 = @combiner.get_image(@image_paths[:good])
+        image2 = @combiner.get_image(@image_paths[:mid])
         image = @combiner.composite_images(image1, image2, image1.columns, 0)
         @combiner.image_properties(image).should == {:name => nil, :width => 40, :height => 19}
       end
 
       it "should composite two images into one verically" do
-        image1 = @combiner.get_image(@image_paths[:good_topic])
-        image2 = @combiner.get_image(@image_paths[:mid_topic])
+        image1 = @combiner.get_image(@image_paths[:good])
+        image2 = @combiner.get_image(@image_paths[:mid])
         image = @combiner.composite_images(image1, image2, 0, image1.rows)
         @combiner.image_properties(image).should == {:name => nil, :width => 20, :height => 38}
       end