Initial release of Discourse

lib/image_sizer.rb

@@ -0,0 +1,17 @@
+module ImageSizer
+
+  # Resize an image to the aspect ratio we want
+  def self.resize(width, height)   
+    max_width = SiteSetting.max_image_width.to_f
+    return nil if width.blank? or height.blank?
+    
+    w = width.to_f
+    h = height.to_f
+
+    return [w.floor, h.floor] if w < max_width
+
+    # Using the maximum width, resize the heigh retaining the aspect ratio
+    [max_width.floor, (h * (max_width / w)).floor]
+  end
+
+end