add qiniu_image_tag

README.md

@@ -43,11 +43,21 @@ for more information on `qiniu_host`, read http://docs.qiniutek.com/v2/sdk/ruby/
 ```ruby
 class Image < ActiveRecord::Base
   attr_accessible :file
-  has_attached_file :file, :styles => { :medium => "300x300>", :thumb => "100x100>" }, :path => ":class/:attachment/:id/:style/:basename.:extension"
+  has_attached_file :file, :path => ":class/:attachment/:id/:basename.:extension"
   validates :file, :attachment_presence => true
 end
 ```
 
+* show image in your view
+
+```erb
+<%= qiniu_image_tag @image.file.url, :thumbnail => '300x300>', :quality => 80 %>
+or
+<%= image_tag qiniu_image_path(@image.file.url, :thumbnail => '300x300>', :quality => 80) %>
+```
+
+support options: `thumbnail`, `gravity`, `crop`, `quality`, `rotate`, `format`, `auto_orient`. for more information on these options, check the document: http://docs.qiniutek.com/v3/api/foimg/#fo-imageMogr
+
 ## Contributing
 
 1. Fork it

lib/paperclip-qiniu.rb

 require "paperclip-qiniu/version"
 require 'paperclip/storage/qiniu'
 require 'paperclip/qiniu/action_view_extensions/qiniu_image_path' if defined?(ActionView)
+require 'paperclip/qiniu/action_view_extensions/qiniu_image_tag' if defined?(ActionView)

lib/paperclip/qiniu/action_view_extensions/qiniu_image_path.rb

@@ -3,11 +3,28 @@ module Paperclip
     module ActionViewExtensions
       module QiniuImagePath
         def qiniu_image_path(source, options={})
+          options = options.clone
           thumbnail = options.delete(:thumbnail)
+          gravity = options.delete(:gravity)
+          crop = options.delete(:crop)
+          quality = options.delete(:quality)
+          rotate = options.delete(:rotate)
+          format = options.delete(:format)
+          auto_orient = options.delete(:auto_orient)
           res = source
-          res += "?imageMogr" if thumbnail
+          res += "?imageMogr"
           res += "/thumbnail/#{CGI.escape thumbnail}" if thumbnail
-          res.html_safe
+          res += "/gravity/#{CGI.escape gravity}" if gravity
+          res += "/crop/#{CGI.escape crop}" if crop
+          res += "/quality/#{CGI.escape quality.to_s}" if quality
+          res += "/rotate/#{CGI.escape rotate.to_s}" if rotate
+          res += "/format/#{CGI.escape format.to_s}" if format
+          res += "/auto-orient" if auto_orient
+          if res.end_with? '?imageMogr'
+            source
+          else
+            res
+          end
         end
       end
     end

lib/paperclip/qiniu/action_view_extensions/qiniu_image_tag.rb

+module Paperclip
+  module Qiniu
+    module ActionViewExtensions
+      module QiniuImageTag
+        def qiniu_image_tag(source, options={})
+          options.symbolize_keys!
+
+          src = path_to_image(source)
+          options[:src] = qiniu_image_path(src, options)
+
+          unless src =~ /^(?:cid|data):/ || src.blank?
+            options[:alt] = options.fetch(:alt){ image_alt(src) }
+          end
+
+          if size = options.delete(:size)
+            options[:width], options[:height] = size.split("x") if size =~ %r{^\d+x\d+$}
+          end
+
+          if mouseover = options.delete(:mouseover)
+            options[:onmouseover] = "this.src='#{path_to_image(mouseover)}'"
+            options[:onmouseout]  = "this.src='#{options[:src]}'"
+          end
+
+          tag("img", options)
+        end
+      end
+    end
+  end
+end
+
+ActionView::Base.send :include, Paperclip::Qiniu::ActionViewExtensions::QiniuImageTag