[PROJXP [PATCH] Add burndown chart to the sprint view page. #52

[Darryl L. Pierce]

Added three report graphic sizes (800x600, 1024x768 and 1280x1024)
and a dropdown to the sprint view page to select the size.

Signed-off-by: Darryl L. Pierce <mcpierce(a)gmail.com&gt;
---
 app/controllers/report_controller.rb      |   28 ++++++++++++++++++++++++++--
 app/views/report/burndown.html.erb        |    5 +++--
 app/views/sprints/show.html.erb           |    5 +++++
 test/functional/report_controller_test.rb |    2 +-
 4 files changed, 35 insertions(+), 5 deletions(-)

diff --git a/app/controllers/report_controller.rb b/app/controllers/report_controller.rb
index 6993fd6..411518e 100644
--- a/app/controllers/report_controller.rb
+++ b/app/controllers/report_controller.rb
@@ -20,6 +20,17 @@
 class ReportController < ApplicationController
   before_filter :load_sprint, :except => [:index, :effort]
   before_filter :load_user, :only => [:effort]
+  before_filter :load_size, :only => [:burndown]
+
+  SIZE_SMALL  = "800x600"
+  SIZE_MEDIUM = "1024x768"
+  SIZE_LARGE  = "1280x1024"
+
+  REPORT_SIZES = {
+    SIZE_SMALL  => 0,
+    SIZE_MEDIUM => 1,
+    SIZE_LARGE  => 2
+  }.sort_by { |k,v| v }
 
   def index
     @title = "Reports"
@@ -28,6 +39,7 @@ class ReportController < ApplicationController
 
   def burndown
     @title = "Burndown Chart For Sprint #{(a)sprint.id}&quot;
+    @size = params[:size]
   end
 
   def effort
@@ -47,8 +59,8 @@ class ReportController < ApplicationController
     if @sprint.can_view_burndown?
       @data = @sprint.burndown_data
 
-      g = Gruff::Line.new('800x600')
-      g.title = "Burndown Chart For &#39;#{(a)sprint.title}&#39;&quot;
+      g = Gruff::Line.new(@size)
+      g.title = &quot;#{(a)sprint.title}&quot;
 
       g.font = File.expand_path('Courier.ttf', RAILS_ROOT)
       g.data("Remaining hours", @data)
@@ -83,4 +95,16 @@ class ReportController < ApplicationController
       redirect_to error_url
     end
   end
+
+  def load_size
+    size = params[:size]
+    if size
+      size = size.to_i
+      if (0...REPORT_SIZES.size).include? params[:size].to_i
+        @size = REPORT_SIZES[size.to_i][0]
+      end
+    end
+
+    @size = REPORT_SIZES[0][0] unless @size
+  end
 end
diff --git a/app/views/report/burndown.html.erb b/app/views/report/burndown.html.erb
index b5fa23f..5c788ad 100644
--- a/app/views/report/burndown.html.erb
+++ b/app/views/report/burndown.html.erb
@@ -1,3 +1,4 @@
-<img src="<%= url_for :action => :burndown_graphic, :id => @sprint.id 
%>"
+<img src="<%= url_for :action => :burndown_graphic, :id => @sprint.id,
+       :size => @size%>"
      alt="Burndown"
-     align="center" />
\ No newline at end of file
+     align="center" />
diff --git a/app/views/sprints/show.html.erb b/app/views/sprints/show.html.erb
index df475c5..46482c8 100644
--- a/app/views/sprints/show.html.erb
+++ b/app/views/sprints/show.html.erb
@@ -21,6 +21,11 @@
             image_tag("icons/sprint_plan.png", :alt => "Plan this
sprint"),
             plan_product_sprint_path(@product, @sprint)) %>
         <% end %>
+        <% if @sprint.can_view_burndown? %>
+          <%= form_tag(:controller => :report, :action => :burndown, :id =>
@sprint.id) %>
+          <%= select_tag :size, options_for_select(ReportController::REPORT_SIZES)
%>
+          <%= submit_tag "Burndown" %>
+        <% end %>
       </td>
     </tr>
 
diff --git a/test/functional/report_controller_test.rb
b/test/functional/report_controller_test.rb
index 4a0a64a..3948d8f 100644
--- a/test/functional/report_controller_test.rb
+++ b/test/functional/report_controller_test.rb
@@ -46,7 +46,7 @@ class ReportControllerTest < ActionController::TestCase
   # Ensures that a burndown chart works as expected.
   #
   def test_burndown_graphic
-    get :burndown_graphic, {:id => @sprint.id}
+    get :burndown_graphic, {:id => @sprint.id, :size => 0}
 
     assert_response :success
     assert assigns['data'], "Didn't generate the data needed for a
report."
-- 
1.6.0.2