Merge branch 'master' into rails31

* master: (23 commits)
  updated change log
  fixed horizontal height and width calculation
  horizontal layout now respects positions and spacing correctly
  Changed the descriptions of the sin, cos, and tan to be more descriptive.
  derp double require
  smart pack docs - forgot something
  smart pack docs
  smart packing implimentation thanks @johnbintz
  tests for smart packing
  smart packing helper classes
  new tests
  docs for diagonal layout
  layout for diagonal sprite
  added test for diagonal layout
  fixed trig functions closes #498
  patched image functions to accept a real path
  Fix failing test for change to http_path in rails
  Failing test for changing http_path with rails
  reverted sorting back to one liner
  more importer tests
  ...

Conflicts:
	Gemfile.lock

Gemfile.lock

@@ -1,7 +1,7 @@
 PATH
   remote: .
   specs:
-    compass (0.12.0.alpha.0.33263ca)
+    compass (0.12.0.alpha.0.91a748a)
       chunky_png (~> 1.2)
       fssm (>= 0.2.7)
       sass (~> 3.1)
@@ -10,12 +10,12 @@ GEM
   remote: http://rubygems.org/
   specs:
     abstract (1.0.0)
-    actionmailer (3.0.9)
+    actionmailer (3.0.10)
-      actionpack (= 3.0.9)
+      actionpack (= 3.0.10)
       mail (~> 2.2.19)
-    actionpack (3.0.9)
+    actionpack (3.0.10)
-      activemodel (= 3.0.9)
+      activemodel (= 3.0.10)
-      activesupport (= 3.0.9)
+      activesupport (= 3.0.10)
       builder (~> 2.1.2)
       erubis (~> 2.6.6)
       i18n (~> 0.5.0)
@@ -23,23 +23,23 @@ GEM
       rack-mount (~> 0.6.14)
       rack-test (~> 0.5.7)
       tzinfo (~> 0.3.23)
-    activemodel (3.0.9)
+    activemodel (3.0.10)
-      activesupport (= 3.0.9)
+      activesupport (= 3.0.10)
       builder (~> 2.1.2)
       i18n (~> 0.5.0)
-    activerecord (3.0.9)
+    activerecord (3.0.10)
-      activemodel (= 3.0.9)
+      activemodel (= 3.0.10)
-      activesupport (= 3.0.9)
+      activesupport (= 3.0.10)
       arel (~> 2.0.10)
       tzinfo (~> 0.3.23)
-    activeresource (3.0.9)
+    activeresource (3.0.10)
-      activemodel (= 3.0.9)
+      activemodel (= 3.0.10)
-      activesupport (= 3.0.9)
+      activesupport (= 3.0.10)
-    activesupport (3.0.9)
+    activesupport (3.0.10)
     addressable (2.2.6)
     arel (2.0.10)
     builder (2.1.2)
-    chunky_png (1.2.0)
+    chunky_png (1.2.1)
     compass-validator (3.0.1)
     css_parser (1.0.1)
     cucumber (0.9.4)
@@ -50,7 +50,7 @@ GEM
       term-ansicolor (~> 1.0.5)
     diff-lcs (1.1.2)
     em-dir-watcher (0.9.4)
-    em-websocket (0.3.0)
+    em-websocket (0.3.1)
       addressable (>= 2.1.1)
       eventmachine (>= 0.12.9)
     erubis (2.6.6)
@@ -74,29 +74,29 @@ GEM
       treetop (~> 1.4.8)
     mime-types (1.16)
     mocha (0.9.12)
-    polyglot (0.3.1)
+    polyglot (0.3.2)
     rack (1.2.3)
     rack-mount (0.6.14)
       rack (>= 1.0.0)
     rack-test (0.5.7)
       rack (>= 1.0)
-    rails (3.0.9)
+    rails (3.0.10)
-      actionmailer (= 3.0.9)
+      actionmailer (= 3.0.10)
-      actionpack (= 3.0.9)
+      actionpack (= 3.0.10)
-      activerecord (= 3.0.9)
+      activerecord (= 3.0.10)
-      activeresource (= 3.0.9)
+      activeresource (= 3.0.10)
-      activesupport (= 3.0.9)
+      activesupport (= 3.0.10)
       bundler (~> 1.0)
-      railties (= 3.0.9)
+      railties (= 3.0.10)
-    railties (3.0.9)
+    railties (3.0.10)
-      actionpack (= 3.0.9)
+      actionpack (= 3.0.10)
-      activesupport (= 3.0.9)
+      activesupport (= 3.0.10)
       rake (>= 0.8.7)
       rdoc (~> 3.4)
       thor (~> 0.14.4)
     rake (0.8.7)
-    rcov (0.9.9)
+    rcov (0.9.10)
-    rdoc (3.8)
+    rdoc (3.9.2)
     rspec (2.0.1)
       rspec-core (~> 2.0.1)
       rspec-expectations (~> 2.0.1)
@@ -110,11 +110,12 @@ GEM
     ruby-json (1.1.2)
     ruby-prof (0.10.8)
     rubyzip (0.9.4)
-    sass (3.1.5)
+    sass (3.1.7)
     term-ansicolor (1.0.6)
     thor (0.14.6)
     timecop (0.3.5)
-    treetop (1.4.9)
+    treetop (1.4.10)
+      polyglot
       polyglot (>= 0.3.1)
     tzinfo (0.3.29)
 

doc-src/content/CHANGELOG.markdown

@@ -14,6 +14,14 @@ The Documentation for the [latest stable release](http://compass-style.org/docs/
 
 The Documentation for the [latest preview release](http://beta.compass-style.org/)
 
+0.12.0 pending
+-------------------
+* Added support for diagonal, horizontal, and smart sprite layout
+* Fixed a bug with spacing in horizontal layout
+* Changed the descriptions of the sin, cos, and tan to be more descriptive
+* Fixed trig functions via issue #498 
+* Fixed the default `http_path` in rails
+* Sprites can now have a `sprite_seach_path` that is an array of directories that contain source images for sprites handy for using sprites in extensions of gems
 0.11.5 (07/10/2011)
 -------------------
 

doc-src/content/help/tutorials/spriting.markdown

@@ -55,11 +55,21 @@ is located within it.
 <a name="layout-control"></a>
 ## Layout Control
 
-If you prefer horizontal sprites to the `vertical` default just set the magic variable `$<sprite>-layout` variable.
+Set the `$<sprite>-layout` variable to the preferred layout method.
+
+* vertical - default
+* horizontal - lays images out side by side
+* diagonal - lays images out corner to corner none of the spacing of padding options are taken into account
+* smart - lays the images out using a bin packing algorithm which allows for much smaller surface areas in your sprite files - does not support spacing or padding
+
+Example:
 
     $icon-layout:horizontal;
     @import "icon/*.png";
-
+    
+    $dropcap-layout:diagonal
+    @import "dropcap/*.png";
+    
 <a name="selector-control"></a>
 ## Selector Control
 

doc-src/content/reference/compass/helpers/trig.haml

@@ -35,8 +35,9 @@ documented_functions:
       sin($number)
   .details
     %p
-      Takes the sine of a number. If the number is unitless or has a unit of <code>deg</code>
+      Returns the sine of a number. If the number is unitless or has a unit of <code>deg</code>
-      then it will return a unitless result. Degrees will first be converted to radians.
+      then it will return a unitless result. Unless the number has a unit of <code>deg</code> it
+      will be evaluated as radians. Degrees will first be converted to radians.
       If the number is any other unit, the units will be passed thru to the result,
       and the number will be treated as radians.
 
@@ -46,8 +47,9 @@ documented_functions:
       cos($number)
   .details
     %p
-      Takes the cosine of a number. If the number is unitless or has a unit of <code>deg</code>
+      Returns the cosine of a number. If the number is unitless or has a unit of <code>deg</code>
-      then it will return a unitless result. Degrees will first be converted to radians.
+      then it will return a unitless result. Unless the number has a unit of <code>deg</code> it
+      will be evaluated as radians. Degrees will first be converted to radians.
       If the number is any other unit, the units will be passed thru to the result,
       and the number will be treated as radians.
 #tan.helper
@@ -56,7 +58,8 @@ documented_functions:
       tan($number)
   .details
     %p
-      Takes the tangent of a number. If the number is unitless or has a unit of <code>deg</code>
+      Returns the tangent of a number. If the number is unitless or has a unit of <code>deg</code>
-      then it will return a unitless result. Degrees will first be converted to radians.
+      then it will return a unitless result. Unless the number has a unit of <code>deg</code> it
+      will be evaluated as radians. Degrees will first be converted to radians.
       If the number is any other unit, the units will be passed thru to the result,
       and the number will be treated as radians.

lib/compass/app_integration/rails/actionpack30/railtie.rb

@@ -40,10 +40,7 @@ module Compass
     initializer "compass.initialize_rails" do |app|
       # Configure compass for use within rails, and provide the project configuration
       # that came via the rails boot process.
-      Compass::AppIntegration::Rails.check_for_double_boot!
+      Compass::AppIntegration::Rails.initialize!(app.config.compass)
-      Compass.discover_extensions!
-      Compass.configure_sass_plugin!
-      Compass.handle_configuration_change!
     end
   end
 end

lib/compass/app_integration/rails/configuration_defaults.rb

@@ -70,19 +70,21 @@ module Compass
         end
 
         def default_http_images_path
-          "#{top_level.http_path}images"
+          # Relies on the fact that this will be loaded after the "normal"
+          # defaults, so that method_missing finds http_root_relative
+          http_root_relative "images"
         end
 
         def default_http_javascripts_path
-          "#{top_level.http_path}javascripts"
+          http_root_relative "javascripts"
         end
 
         def default_http_fonts_path
-          "#{top_level.http_path}fonts"
+          http_root_relative "fonts"
         end
 
         def default_http_stylesheets_path
-          "#{top_level.http_path}stylesheets"
+          http_root_relative "stylesheets"
         end
 
         def default_extensions_dir

lib/compass/configuration.rb

@@ -24,7 +24,7 @@ module Compass
       attributes_for_directory(:fonts),
       attributes_for_directory(:extensions, nil),
       # Compilation options
-      :sprite_search_path,
+      :sprite_load_path,
       :output_style,
       :environment,
       :relative_assets,

lib/compass/configuration/defaults.rb

@@ -89,7 +89,7 @@ module Compass
         top_level.images_dir
       end
       
-      def default_sprite_search_path
+      def default_sprite_load_path
         [top_level.images_path]
       end
 

lib/compass/sass_extensions/functions/image_size.rb

@@ -1,14 +1,22 @@
 module Compass::SassExtensions::Functions::ImageSize
   # Returns the width of the image relative to the images directory
   def image_width(image_file)
-    image_path = real_path(image_file)
+    image_path = if File.exists?(image_file.value)
+      image_file.value
+    else
+      real_path(image_file)
+    end
     width = ImageProperties.new(image_path).size.first
     Sass::Script::Number.new(width,["px"])
   end
 
   # Returns the height of the image relative to the images directory
   def image_height(image_file)
-    image_path = real_path(image_file)
+    image_path = if File.exists?(image_file.value)
+      image_file.value
+    else
+      real_path(image_file)
+    end
     height = ImageProperties.new(image_path).size.last
     Sass::Script::Number.new(height, ["px"])
   end

lib/compass/sass_extensions/functions/sprites.rb

@@ -61,7 +61,7 @@ module Compass::SassExtensions::Functions::Sprites
     verify_map(map, "sprite")
     verify_sprite(sprite)
     if image = map.image_for(sprite.value)
-      Sass::Script::String.new(image.relative_file)
+      Sass::Script::String.new(image.file)
     else
       missing_image!(map, sprite)
     end

lib/compass/sass_extensions/functions/trig.rb

@@ -19,9 +19,10 @@ module Compass::SassExtensions::Functions::Trig
   private
   def trig(operation, number)
     if number.numerator_units == ["deg"] && number.denominator_units == []
-      Sass::Script::Number.new(Math.send(operation, Math::PI * number.value / 360))
+      Sass::Script::Number.new(Math.send(operation, (number.value * Math::PI / 180)))
     else
       Sass::Script::Number.new(Math.send(operation, number.value), number.numerator_units, number.denominator_units)
     end
   end
+  
 end

lib/compass/sass_extensions/sprites.rb

@@ -7,7 +7,8 @@ module Compass
     end
   end
 end
-
+require 'compass/sass_extensions/sprites/image_row'
+require 'compass/sass_extensions/sprites/row_fitter'
 require 'compass/sass_extensions/sprites/image'
 require 'compass/sass_extensions/sprites/layout_methods'
 require 'compass/sass_extensions/sprites/sprite_methods'

lib/compass/sass_extensions/sprites/image.rb

@@ -17,7 +17,16 @@ module Compass
         
         # The Full path to the image
         def file
-          File.join(Compass.configuration.images_path, relative_file)
+          @file ||= find_file
+        end
+        
+        def find_file
+          Compass.configuration.sprite_load_path.each do |path|
+            f = File.join(path, relative_file)
+            if File.exists?(f)
+              return f
+            end
+          end
         end
         
         # Width of the image
@@ -25,6 +34,10 @@ module Compass
           dimensions.first
         end
         
+        def size
+          @size ||= File.size(file)
+        end
+        
         # Height of the image
         def height
           dimensions.last
@@ -35,29 +48,28 @@ module Compass
           File.basename(relative_file, '.png')
         end
 
-        # Value of <tt> $#{name}-repeat </tt> or <tt> $repeat </tt>
+        def get_var_file(var)
-        def repeat
+          options.get_var "#{name}_#{var}"
-          [ "#{name}-repeat", "repeat" ].each { |which|
-            if var = options.get_var(which)
-              return var.value
-            end
-          }
-          "no-repeat"
         end
 
-        # Value of <tt> $#{name}-position </tt> or <tt> $position </tt> defaults o <tt>0px</tt>
+        # Value of <tt> $#{name}-repeat </tt> or <tt> $repeat </tt>
+        def repeat
+          (get_var_file("repeat") || options.get_var("repeat") || Sass::Script::String.new("no-repeat")).value
+        end
+
+        # Value of <tt> $#{name}-position </tt> or <tt> $position </tt> defaults to <tt>0px</tt>
         def position
-          options.get_var("#{name}-position") || options.get_var("position") || Sass::Script::Number.new(0, ["px"])
+          get_var_file("position") || options.get_var("position") || Sass::Script::Number.new(0, ["px"])
         end
         
         # Offset within the sprite
         def offset
           (position.unitless? || position.unit_str == "px") ? position.value : 0
         end
-        
+               
         # Spacing between this image and the next
         def spacing
-          (options.get_var("#{name}-spacing") || options.get_var("spacing") || Sass::Script::Number.new(0)).value
+          (get_var_file("spacing") || options.get_var("spacing") || Sass::Script::Number.new(0, ['px'])).value
         end
 
         # MD5 hash of this file

lib/compass/sass_extensions/sprites/image_row.rb

@@ -0,0 +1,47 @@
+require 'forwardable'
+
+module Compass
+  module SassExtensions
+    module Sprites
+      class ImageRow
+        extend Forwardable
+
+        attr_reader :images, :max_width
+        def_delegators :@images, :last, :delete, :empty?, :length
+        
+        def initialize(max_width)
+          @images = []
+          @max_width = max_width
+        end
+        
+        def add(image)
+          return false if !will_fit?(image)
+          @images << image
+          true
+        end
+
+        alias :<< :add
+        
+        def height
+          images.map(&:height).max
+        end
+        
+        def width
+          images.map(&:width).max
+        end
+
+        def total_width
+          images.inject(0) {|sum, img| sum + img.width }
+        end
+        
+        def efficiency
+          1 - (total_width.to_f / max_width.to_f)
+        end
+
+        def will_fit?(image)
+          (total_width + image.width) <= max_width
+        end
+      end
+    end
+  end
+end

lib/compass/sass_extensions/sprites/layout_methods.rb

@@ -3,23 +3,76 @@ module Compass
     module Sprites
       module LayoutMethods
         HORIZONTAL = 'horizontal'
+        DIAGONAL = 'diagonal'
+        SMART = 'smart'
+        
+        def smart?
+          @kwargs.get_var('layout').value == SMART
+        end
         
         def horizontal?
           @kwargs.get_var('layout').value == HORIZONTAL
         end
         
+        def diagonal?
+          @kwargs.get_var('layout').value == DIAGONAL
+        end
+        
         # Calculates the overal image dimensions
         # collects image sizes and input parameters for each sprite
         def compute_image_positions!
-          if horizontal?
+          case @kwargs.get_var('layout').value
-            calculate_height
+          when SMART
+            calculate_smart_positions
+          when DIAGONAL
+            calculate_diagonal_dimensions
+            calculate_diagonal_positions
+          when HORIZONTAL
+            @height = height_for_horizontal_layout
             calculate_horizontal_positions
-            calculate_width
+            @width = width_for_horizontal_layout
           else
-            @images.sort! {|a,b| File.size(b.file) <=> File.size(a.file)} #put small images first
+            @images.sort! {|a,b| b.size <=> a.size}
-            calculate_width
+            @width = width_for_vertical_layout
             calulate_vertical_postions
-            calculate_height
+            @height = height_for_vertical_layout
+          end
+        end
+        
+        def calculate_smart_positions
+          fitter = ::Compass::SassExtensions::Sprites::RowFitter.new(@images)
+          current_y = 0
+          fitter.fit!.each do |row|
+            current_x = 0
+            row.images.each_with_index do |image, index|
+              image.left = current_x
+              image.top = current_y
+              current_x += image.width
+            end
+            current_y += row.height
+          end
+          @width = fitter.width
+          @height = fitter.height
+        end
+        
+        
+        def calculate_diagonal_dimensions
+          @width = @images.map {|image| image.width}.inject(0) {|width, sum| sum + width}
+          @height = @images.map {|image| image.height}.inject(0) {|height, sum| sum + height}
+        end
+        
+        def calculate_diagonal_positions
+          previous = nil
+          @images.each_with_index do |image, index|
+            if previous.nil?
+              previous = image
+              image.top = 0
+              image.left = 0
+              next
+            end
+            image.top = previous.top + previous.height
+            image.left = previous.left + previous.width
+            previous = image
           end
         end
         
@@ -28,7 +81,7 @@ module Compass
             image.top = image.position.unit_str == '%' ? (@height - image.height) * (image.position.value / 100.0) : image.position.value
             next if index == 0
             last_image = @images[index-1]
-            image.left = last_image.left + last_image.width + [image.offset, last_image.offset].max
+            image.left = last_image.left + last_image.width + [image.spacing, last_image.spacing].max
           end
         end
         
@@ -41,39 +94,17 @@ module Compass
           end
         end
         
-        
-        def calculate_dimensions!
-          calculate_width
-          calculate_height
-        end
-        
-        def calculate_height
-          @height = if horizontal?
-            height_for_horizontal_layout
-          else
-            height_for_vertical_layout
-          end
-        end
-        
         def height_for_vertical_layout
           last = @images.last
           last.top + last.height
         end
         
         def height_for_horizontal_layout
-          @height = @images.map {|image| image.height + image.spacing}.max
+          @height = @images.map {|image| image.height + image.offset}.max
-        end
-        
-        def calculate_width
-          @width = if horizontal?
-            width_for_horizontal_layout
-          else
-            width_for_vertical_layout
-          end
         end
         
         def width_for_horizontal_layout
-          @images.inject(0) { |sum, image| sum += (image.width + image.offset) }
+          @images.inject(0) { |sum, image| sum += (image.width + image.spacing) }
         end
         
         def width_for_vertical_layout

lib/compass/sass_extensions/sprites/row_fitter.rb

@@ -0,0 +1,86 @@
+require 'forwardable'
+
+module Compass
+  module SassExtensions
+    module Sprites
+      class RowFitter
+        extend Forwardable
+
+        attr_reader :images, :rows
+        def_delegators :rows, :[]
+
+        def initialize(images)
+          @images = images.sort {|a,b| a.height <=> b.height }
+          @rows = []
+        end
+
+        def fit!(style = :scan)
+          send("#{style}_fit")
+          @rows
+        end
+
+        def width
+          @width ||= @images.collect(&:width).max
+        end
+        
+        def height
+          @height ||= @rows.inject(0) {|sum, row| sum += row.height}
+        end
+
+        def efficiency
+          @rows.inject(0) { |sum, row| sum += row.efficiency } ** @rows.length
+        end
+
+        private
+        def new_row(image = nil)
+          row = Compass::SassExtensions::Sprites::ImageRow.new(width)
+          row.add(image) if image
+          row
+        end
+
+        def fast_fit
+          row = new_row
+          @images.each do |image|
+            if !row.add(image)
+              @rows << row
+              row = new_row(image)
+            end
+          end
+
+          @rows << row
+        end
+
+        def scan_fit
+          fast_fit
+
+          moved_images = []
+
+          begin
+            removed = false
+
+            catch :done do
+              @rows.each do |row|
+                (@rows - [ row ]).each do |other_row|
+                  other_row.images.each do |image|
+                    if !moved_images.include?(image)
+                      if row.will_fit?(image)
+                        other_row.delete(image)
+                        row << image
+
+                        @rows.delete(other_row) if other_row.empty?
+                        removed = true
+
+                        moved_images << image
+                        throw :done
+                      end
+                    end
+                  end
+                end
+              end
+            end
+          end while removed
+        end
+      end
+    end
+  end
+end

lib/compass/sass_extensions/sprites/sprite_map.rb

@@ -17,10 +17,20 @@ module Compass
           name, path = Compass::SpriteImporter.path_and_name(uri)
           files = Compass::SpriteImporter.files(uri)
           sprites = files.map do |sprite|
-            sprite.gsub("#{Compass.configuration.images_path}/", "")
+            relative_name(sprite)
           end
           new(sprites, path, name, context, kwargs)
         end
+        
+        def self.relative_name(sprite)
+          sprite = File.expand_path(sprite)
+          Compass.configuration.sprite_load_path.each do |path|
+            path = File.expand_path(path)
+            if sprite.include?(path)
+              return sprite.gsub("#{path}/", "")
+            end
+          end
+        end
 
         def initialize(sprites, path, name, context, kwargs)
           @image_names = sprites

lib/compass/sprite_importer.rb

@@ -66,7 +66,7 @@ module Compass
     
     # Returns the Glob of image files for the uri
     def self.files(uri)
-      Compass.configuration.sprite_search_path.each do |folder|
+      Compass.configuration.sprite_load_path.each do |folder|
         files = Dir[File.join(folder, uri)].sort
         next if files.empty?
         return files

test/units/rails_configuration_test.rb

@@ -0,0 +1,50 @@
+require 'test_helper'
+require 'compass'
+require 'stringio'
+
+class ConfigurationTest < Test::Unit::TestCase
+
+  setup do
+    Compass.reset_configuration!
+  end
+  
+  after do
+    Compass.reset_configuration!
+  end
+
+  def test_defaults
+    contents = StringIO.new(<<-CONFIG)
+      project_type = :rails
+    CONFIG
+    config = Compass.configuration_for(contents, "config/compass.rb")
+
+    Compass.add_project_configuration(config, :project_type => "rails")
+
+    assert_equal 'public/images', Compass.configuration.images_dir
+    assert_equal 'public/stylesheets', Compass.configuration.css_dir
+    assert_equal 'public/fonts', Compass.configuration.fonts_dir
+
+    assert_equal '/', Compass.configuration.http_path
+    assert_equal '/images', Compass.configuration.http_images_path
+    assert_equal '/stylesheets', Compass.configuration.http_stylesheets_path
+    assert_equal '/fonts', Compass.configuration.http_fonts_path
+
+    # Other default values must wait until I have a better idea of how to mock Sass::Util.app_geq
+  end
+
+  def test_http_path_change
+    contents = StringIO.new(<<-CONFIG)
+      project_type = :rails
+
+      http_path = "/test/alternative_path"
+    CONFIG
+    config = Compass.configuration_for(contents, "config/compass.rb")
+
+    Compass.add_project_configuration(config, :project_type => "rails")
+
+    assert_equal '/test/alternative_path', Compass.configuration.http_path
+    assert_equal '/test/alternative_path/images', Compass.configuration.http_images_path
+    assert_equal '/test/alternative_path/stylesheets', Compass.configuration.http_stylesheets_path
+    assert_equal '/test/alternative_path/fonts', Compass.configuration.http_fonts_path
+  end
+end

test/units/sass_extensions_test.rb

@@ -65,18 +65,21 @@ class SassExtensionsTest < Test::Unit::TestCase
   end
 
   def test_trig_functions
+    assert_equal "0.841", evaluate("sin(1)")
     assert_equal "0.841px", evaluate("sin(1px)")
     assert_equal "0.0", evaluate("sin(pi())")
     assert_equal "1",   evaluate("sin(pi() / 2)")
-    assert_equal "1",   evaluate("sin(180deg)")
+    assert_equal "0.0",   evaluate("sin(180deg)")
     assert_equal "-1",  evaluate("sin(3* pi() / 2)")
     assert_equal "-1", evaluate("cos(pi())")
-    assert_equal "-1", evaluate("cos(360deg)")
+    assert_equal "1", evaluate("cos(360deg)")
+    assert_equal "-0.176", evaluate("sin(270)")
     assert_equal "1", evaluate("cos(2*pi())")
     assert_equal "0.0",   evaluate("cos(pi() / 2)")
     assert_equal "0.0",  evaluate("cos(3* pi() / 2)")
     assert_equal "0.0",  evaluate("tan(pi())")
     assert_equal "0.0", evaluate("tan(360deg)")
+    assert_equal "0.959", evaluate("sin(360)")
     assert evaluate("tan(pi()/2 - 0.0001)").to_f > 1000, evaluate("tan(pi()/2 - 0.0001)")
     assert evaluate("tan(pi()/2 + 0.0001)").to_f < -1000, evaluate("tan(pi()/2 - 0.0001)")
   end

test/units/sprites/image_row_test.rb

@@ -0,0 +1,57 @@
+require 'test_helper'
+
+class ImageRowTest < Test::Unit::TestCase
+  include SpriteHelper
+  def setup
+    create_sprite_temp
+    file = StringIO.new("images_path = #{@images_src_path.inspect}\n")
+    Compass.add_configuration(file, "sprite_config")
+    @filenames = %w(large.png large_square.png medium.png tall.png small.png)
+    @image_files = Dir["#{@images_src_path}/image_row/*.png"].sort
+    @images = @image_files.map do |img|
+      img.gsub!("#{@images_src_path}/", '')
+      Compass::SassExtensions::Sprites::Image.new(nil, img, {})
+    end
+    image_row(1000)
+  end
+  
+  def teardown
+    clean_up_sprites
+  end
+  
+  def image_row(max)
+    @image_row = Compass::SassExtensions::Sprites::ImageRow.new(max)
+  end
+  
+  def populate_row
+    @images.each do |image|
+      assert @image_row.add(image)
+    end
+  end
+  
+  it "should return false if image will not fit in row" do
+    image_row(100)
+    img = Compass::SassExtensions::Sprites::Image.new(nil, File.join('image_row', 'large.png'), {})
+    assert !@image_row.add(img)
+  end
+  
+  it "should have 5 images" do
+    populate_row
+    assert_equal 5, @image_row.images.size
+  end
+  
+  it "should return max image width" do
+    populate_row
+    assert_equal 400, @image_row.width
+  end
+  
+  it "should return max image height" do
+    populate_row
+    assert_equal 40, @image_row.height
+  end
+  
+  it "should have an efficiency rating" do
+    populate_row
+    assert_equal 1 - (580.0 / 1000.0), @image_row.efficiency
+  end
+end

test/units/sprites/image_test.rb

@@ -6,41 +6,36 @@ class SpritesImageTest < Test::Unit::TestCase
   include SpriteHelper
   def setup
     create_sprite_temp
-    file = StringIO.new("images_path = #{@images_src_path.inspect}\n")
-    Compass.add_configuration(file, "sprite_config")
-    @repeat = 'no-repeat'
-    @spacing = 0
-    @position = 100
-    @offset = 100
   end
 
-  let(:sprite_filename) { 'squares/ten-by-ten.png' }
+  SPRITE_FILENAME =  'selectors/ten-by-ten.png'
-  let(:sprite_path) { File.join(@images_src_path, sprite_filename) }
-  let(:sprite_name) { File.basename(sprite_filename, '.png') }
   
-  
+  def sprite_path 
-  def options
+    File.join(@images_tmp_path, SPRITE_FILENAME)
-    options = {:offset => @offset}
-    options.stubs(:get_var).with(anything).returns(nil)
-    ::OpenStruct.any_instance.stubs(:unitless?).returns(true)
-    options.stubs(:get_var).with("#{sprite_name}-repeat").returns(::OpenStruct.new(:value => @repeat))
-    options.stubs(:get_var).with("#{sprite_name}-spacing").returns(::OpenStruct.new(:value => @spacing))
-    options.stubs(:get_var).with("#{sprite_name}-position").returns(::OpenStruct.new(:value => @position))
-    options.stubs(:get_var).with("layout").returns(::OpenStruct.new(:value => 'vertical'))
-    options
   end
   
-
+  def sprite_name
+    File.basename(SPRITE_FILENAME, '.png')
+  end
   
-  let(:digest) { Digest::MD5.file(sprite_path).hexdigest }
+  def digest
-
+    Digest::MD5.file(sprite_path).hexdigest
-
+  end
-  let(:image) { Compass::SassExtensions::Sprites::Image.new(sprite_map_test(options), File.join(sprite_filename), options)}
+  
+  def test_map(options ={})
+    options = {'cleanup' => Sass::Script::Bool.new(true), 'layout' => Sass::Script::String.new('vertical')}.merge(options)
+    map = sprite_map_test(options)
+  end
+  
+  def test_image(options ={})
+    test_map(options).images.first
+  end
 
   test 'initialize' do
+    image = test_image
     assert_equal sprite_name, image.name
     assert_equal sprite_path, image.file
-    assert_equal sprite_filename, image.relative_file
+    assert_equal SPRITE_FILENAME, image.relative_file
     assert_equal 10, image.width
     assert_equal 10, image.height
     assert_equal digest, image.digest
@@ -49,46 +44,62 @@ class SpritesImageTest < Test::Unit::TestCase
   end
 
   test 'hover' do
-    assert_equal 'ten-by-ten_hover', image.hover.name
+    assert_equal 'ten-by-ten_hover', test_image.hover.name
   end
 
   test 'no parent' do
-    assert_nil image.parent
+    assert_nil test_image.parent
   end
-
-  test 'image type is nil' do
-    @repeat = nil
-    assert_nil image.repeat
-  end
-
   
   test 'image type is "global"' do
-    @repeat = 'global'
+    image = test_image "ten_by_ten_repeat" => Sass::Script::String.new('global')
-    assert_equal @repeat, image.repeat
+    assert_equal 'global', image.repeat
   end
   
   test 'image type is "no-repeat"' do
-    assert_equal 'no-repeat', image.repeat
+    assert_equal 'no-repeat', test_image.repeat
   end
 
   test 'image position' do
-    assert_equal Sass::Script::Number.new(100, ["px"]).value, image.position.value
+    image = test_image "ten_by_ten_position" => Sass::Script::Number.new(100, ["px"])
+    assert_equal 100, image.position.value
   end
 
   test 'image spacing' do
     @spacing = 10
-    assert_equal @spacing, image.spacing
+    image = test_image "spacing" => Sass::Script::Number.new(100, ["px"])
+    assert_equal 100, image.spacing
   end
   
   test 'offset' do
-    assert_equal @offset, image.offset
+    image = test_image "ten_by_ten_position" => Sass::Script::Number.new(100, ["px"])
+    assert_equal 100, image.offset
   end
 
   test 'neither, uses 0' do
-    @offset = 0
+    img = test_image
-    img = image
     img.position.stubs(:unitless?).returns(false)
     assert_equal 0, img.offset
   end
 
+
+  test 'gets name for sprite in search path' do
+    Compass.reset_configuration!
+    uri = 'foo/*.png'
+    other_folder = File.join(@images_tmp_path, '../other-temp')
+    FileUtils.mkdir_p other_folder
+    FileUtils.mkdir_p File.join(other_folder, 'foo')
+    %w(my bar).each do |file|
+      FileUtils.touch(File.join(other_folder, "foo/#{file}.png"))
+    end
+    config = Compass::Configuration::Data.new('config')
+    config.images_path = @images_tmp_path
+    config.sprite_load_path = [@images_tmp_path, other_folder]
+    Compass.add_configuration(config, "sprite_config")
+    image = Compass::SassExtensions::Sprites::Image.new(test_map, "foo/my.png", {})
+    assert_equal File.join(other_folder, 'foo/my.png'), image.file
+    assert_equal 0, image.size
+    FileUtils.rm_rf other_folder
+  end
+
 end

test/units/sprites/importer_test.rb

@@ -29,11 +29,11 @@ class ImporterTest < Test::Unit::TestCase
     end
     config = Compass::Configuration::Data.new('config')
     config.images_path = @images_tmp_path
-    config.sprite_search_path = [@images_tmp_path, other_folder]
+    config.sprite_load_path = [@images_tmp_path, other_folder]
     Compass.add_configuration(config, "sprite_config")
     importer = Compass::SpriteImporter.new
-    assert_equal 2, Compass.configuration.sprite_search_path.compact.size
+    assert_equal 2, Compass.configuration.sprite_load_path.compact.size
-    assert Compass.configuration.sprite_search_path.include?(other_folder)
+    assert Compass.configuration.sprite_load_path.include?(other_folder)
     assert_equal ["bar", "my"], Compass::SpriteImporter.sprite_names(uri)
     
     FileUtils.rm_rf other_folder

test/units/sprites/row_fitter_test.rb

@@ -0,0 +1,66 @@
+require 'test_helper'
+require 'compass/sass_extensions/sprites/row_fitter'
+
+class RowFitterTest < Test::Unit::TestCase
+  include SpriteHelper
+  def setup
+    file = StringIO.new("images_path = #{@images_src_path.inspect}\n")
+    Compass.add_configuration(file, "sprite_config")
+  end
+
+  def row_fitter(images = nil)
+    @row_fitter ||= Compass::SassExtensions::Sprites::RowFitter.new(images)
+  end
+
+  def teardown
+    @row_fitter = nil
+  end
+
+  def create_images(dims)
+    dims.collect { |width, height| 
+      image = Compass::SassExtensions::Sprites::Image.new('blah', 'blah', {})
+      image.stubs(:width => width, :height => height)
+      image
+    }
+  end
+
+  def basic_dims
+    [
+      [ 100, 10 ],
+      [ 80, 10 ],
+      [ 50, 10 ],
+      [ 35, 10 ],
+      [ 20, 10 ]
+    ]
+  end
+
+  it 'should use the fast placement algorithm' do
+    images = create_images(basic_dims)
+
+    row_fitter(images)
+    assert_equal 100, row_fitter.width
+
+    row_fitter.fit!(:fast)
+
+    assert_equal 4, row_fitter.rows.length
+
+    assert_equal [ images[0] ], row_fitter[0].images
+    assert_equal [ images[1] ], row_fitter[1].images
+    assert_equal [ images[2], images[3] ], row_fitter[2].images
+    assert_equal [ images[4] ], row_fitter[3].images
+  end
+
+  it 'should use the scan placement algorithm' do
+    images = create_images(basic_dims)
+
+    row_fitter(images)
+
+    row_fitter.fit!(:scan)
+
+    assert_equal 3, row_fitter.rows.length
+
+    assert_equal [ images[0] ], row_fitter[0].images
+    assert_equal [ images[1], images[4] ], row_fitter[1].images
+    assert_equal [ images[2], images[3] ], row_fitter[2].images
+  end
+end

test/units/sprites/sprite_map_test.rb

@@ -5,20 +5,16 @@ class SpriteMapTest < Test::Unit::TestCase
   
   def setup
     Hash.send(:include, Compass::SassExtensions::Functions::Sprites::VariableReader)
-    @images_src_path = File.join(File.dirname(__FILE__), '..', '..', 'fixtures', 'sprites', 'public', 'images')
+    create_sprite_temp
-    @images_tmp_path = File.join(File.dirname(__FILE__), '..', '..', 'fixtures', 'sprites', 'public', 'images-tmp')
+    file = StringIO.new("images_path = #{@images_tmp_path.inspect}\n")
-    FileUtils.cp_r @images_src_path, @images_tmp_path
+    Compass.add_configuration(file, "sprite_config")
-    config = Compass::Configuration::Data.new('config')
-    config.images_path = @images_tmp_path
-    config.sprite_search_path = [@images_tmp_path]
-    Compass.add_configuration(config)
     Compass.configure_sass_plugin!
     @options = {'cleanup' => Sass::Script::Bool.new(true), 'layout' => Sass::Script::String.new('vertical')}
     @base = sprite_map_test(@options)
   end
 
   def teardown
-    FileUtils.rm_r @images_tmp_path
+    clean_up_sprites
     @base = nil
   end
   
@@ -89,11 +85,56 @@ class SpriteMapTest < Test::Unit::TestCase
     assert_equal [0, 10, 20, 30], @base.images.map(&:top)
     assert_equal [0, 0, 0, 0], @base.images.map(&:left)
   end
+  
+  it "should have a vertical layout with spacing" do
+    base = sprite_map_test(@options.merge({"spacing" => Sass::Script::Number.new(10, ['px'])}))
+    assert_equal [0, 20, 40, 60], base.images.map(&:top)
+  end
+  
+  it "should layout vertical with position" do
+    base = sprite_map_test("ten_by_ten_active_position" => Sass::Script::Number.new(10, ['px']))
+    assert_equal [0, 10, 0, 0], base.images.map(&:left)
+  end
+  
+  def smart
+    options = @options.merge("layout" => Sass::Script::String.new('smart'))
+    importer = Compass::SpriteImporter.new
+    uri = "image_row/*.png"
+    path, name = Compass::SpriteImporter.path_and_name(uri)
+    sprite_names = Compass::SpriteImporter.sprite_names(uri)
+    sass_engine = Compass::SpriteImporter.sass_engine(uri, name, importer, options)
+    Compass::SassExtensions::Sprites::SpriteMap.new(sprite_names.map {|n| "image_row/#{n}.png"}, path, name, sass_engine, options)
+  end
+  
+  it "should have a smart layout" do
+    base = smart
+    base.generate
+    assert_equal 400, base.width
+    assert_equal 60, base.height
+    assert_equal [[0, 0], [20, 120], [20, 20], [20, 0], [20, 160]], base.images.map {|i| [i.top, i.left]}
+    assert File.exists?(base.filename)
+    FileUtils.rm base.filename
+  end
 
+  def diagonal
+    opts = @options.merge("layout" => Sass::Script::String.new('diagonal'))
+    sprite_map_test(opts)
+  end
+  
+  it "should generate a diagonal sprite" do
+    base = diagonal
+    base.generate
+    assert_equal 40, base.width
+    assert_equal 40, base.height
+    assert_equal [[0,0], [10,10], [20,20], [30,30]], base.images.map {|i| [i.top, i.left]}
+    assert File.exists?(base.filename)
+    FileUtils.rm base.filename
+  end
 
   # Horizontal tests
-  def horizontal
+  def horizontal(options= {})
     opts = @options.merge("layout" => Sass::Script::String.new('horizontal'))
+    opts.merge!(options)
     sprite_map_test(opts)
   end
   
@@ -109,18 +150,47 @@ class SpriteMapTest < Test::Unit::TestCase
     assert_equal [0, 0, 0, 0], base.images.map(&:top)
   end
   
+  it "should layout horizontaly with spacing" do
+    base = horizontal("spacing" => Sass::Script::Number.new(10, ['px']))
+    assert_equal [0, 20, 40, 60], base.images.map(&:left)
+    assert_equal [0, 0, 0, 0], base.images.map(&:top)
+    assert_equal 80, base.width
+  end
+  
+  it "should layout horizontaly with position" do
+    base = horizontal("ten_by_ten_active_position" => Sass::Script::Number.new(10, ['px']))
+    assert_equal [0, 10, 0, 0], base.images.map(&:top)
+  end
+  
   it "should generate a horrizontal sprite" do
     base = horizontal
     base.generate
     assert File.exists?(base.filename)
     FileUtils.rm base.filename
   end
-  
+    
   it "should generate vertical sprites in decending order" do
     sizes = @base.images.map{|image| File.size(image.file) }
     assert_equal sizes.min, File.size(@base.images.first.file)
     assert_equal sizes.max, File.size(@base.images.last.file)
   end
   
+  test "should get correct relative_name" do
+    Compass.reset_configuration!
+    uri = 'foo/*.png'
+    other_folder = File.join(@images_tmp_path, '../other-temp')
+    FileUtils.mkdir_p other_folder
+    FileUtils.mkdir_p File.join(other_folder, 'foo')
+    %w(my bar).each do |file|
+      FileUtils.touch(File.join(other_folder, "foo/#{file}.png"))
+    end
+    config = Compass::Configuration::Data.new('config')
+    config.images_path = @images_tmp_path
+    config.sprite_load_path = [@images_tmp_path, other_folder]
+    Compass.add_configuration(config, "sprite_config")
+    assert_equal 'foo/my.png', Compass::SassExtensions::Sprites::SpriteMap.relative_name(File.join(other_folder, 'foo/my.png'))
+    FileUtils.rm_rf other_folder
+  end
+  
   
 end