Displays thumbnails of attached images of the issue view (#1006).

This behaviour can be turned on/off in Settings -> Display (off by default). Thumbnail size can be configured there too.

git-svn-id: svn+ssh://rubyforge.org/var/svn/redmine/trunk@9933 e93f8b46-1217-0410-a6f0-8f06a7374b81

app/views/attachments/_links.html.erb

@@ -20,4 +20,14 @@
   <% end %>
   </p>
 <% end %>
+<% if defined?(thumbnails) && thumbnails %>
+  <% images = attachments.select(&:thumbnailable?) %>
+  <% if images.any? %>
+  <div class="thumbnails">
+    <% images.each do |attachment| %>
+      <div><%= thumbnail_tag(attachment) %></div>
+    <% end %>
+  </div>
+  <% end %>
+<% end %>
 </div>

app/views/issues/show.html.erb

@@ -81,7 +81,7 @@ end %>
   <%= textilizable @issue, :description, :attachments => @issue.attachments %>
   </div>
 <% end %>
-<%= link_to_attachments @issue %>
+<%= link_to_attachments @issue, :thumbnails => true %>
 <% end -%>
 
 <%= call_hook(:view_issues_show_description_bottom, :issue => @issue) %>

app/views/settings/_display.html.erb

@@ -16,6 +16,10 @@
 <p><%= setting_check_box :gravatar_enabled %></p>
 
 <p><%= setting_select :gravatar_default, [["Wavatars", 'wavatar'], ["Identicons", 'identicon'], ["Monster ids", 'monsterid'], ["Retro", 'retro'], ["Mystery man", 'mm']], :blank => :label_none %></p>
+
+<p><%= setting_check_box :thumbnails_enabled %></p>
+
+<p><%= setting_text_field :thumbnails_size, :size => 6 %></p>
 </div>
 
 <%= submit_tag l(:button_save) %>