Gantt chart can now be exported to a graphic file (png).
This functionality is only available if RMagick is present. git-svn-id: http://redmine.rubyforge.org/svn/trunk@666 e93f8b46-1217-0410-a6f0-8f06a7374b81
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@ -38,6 +38,7 @@ class ProjectsController < ApplicationController
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include QueriesHelper
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helper :repositories
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include RepositoriesHelper
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include ProjectsHelper
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def index
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list
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@ -614,10 +615,14 @@ class ProjectsController < ApplicationController
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@events += @project.versions.find(:all, :conditions => ["effective_date BETWEEN ? AND ?", @date_from, @date_to])
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@events.sort! {|x,y| x.start_date <=> y.start_date }
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if params[:output]=='pdf'
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if params[:format]=='pdf'
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@options_for_rfpdf ||= {}
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@options_for_rfpdf[:file_name] = "gantt.pdf"
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@options_for_rfpdf[:file_name] = "#{@project.identifier}-gantt.pdf"
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render :template => "projects/gantt.rfpdf", :layout => false
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elsif params[:format]=='png' && respond_to?('gantt_image')
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image = gantt_image(@events, @date_from, @months, @zoom)
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image.format = 'PNG'
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send_data(image.to_blob, :disposition => 'inline', :type => 'image/png', :filename => "#{@project.identifier}-gantt.png")
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else
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render :template => "projects/gantt.rhtml"
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end
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@ -25,4 +25,154 @@ module ProjectsHelper
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:anchor => version.name
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}, options
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end
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# Generates a gantt image
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# Only defined if RMagick is avalaible
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def gantt_image(events, date_from, months, zoom)
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date_to = (date_from >> months)-1
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show_weeks = zoom > 1
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show_days = zoom > 2
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subject_width = 320
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header_heigth = 18
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# width of one day in pixels
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zoom = zoom*2
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g_width = (date_to - date_from + 1)*zoom
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g_height = 20 * events.length + 20
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headers_heigth = (show_weeks ? 2*header_heigth : header_heigth)
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height = g_height + headers_heigth
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imgl = Magick::ImageList.new
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imgl.new_image(subject_width+g_width+1, height)
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gc = Magick::Draw.new
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# Subjects
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top = headers_heigth + 20
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gc.fill('black')
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gc.stroke('transparent')
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gc.stroke_width(1)
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events.each do |i|
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gc.text(4, top + 2, (i.is_a?(Issue) ? i.subject : i.name))
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top = top + 20
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end
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# Months headers
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month_f = date_from
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left = subject_width
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months.times do
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width = ((month_f >> 1) - month_f) * zoom
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gc.fill('white')
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gc.stroke('grey')
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gc.stroke_width(1)
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gc.rectangle(left, 0, left + width, height)
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gc.fill('black')
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gc.stroke('transparent')
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gc.stroke_width(1)
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gc.text(left.round + 8, 14, "#{month_f.year}-#{month_f.month}")
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left = left + width
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month_f = month_f >> 1
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end
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# Weeks headers
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if show_weeks
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left = subject_width
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height = header_heigth
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if date_from.cwday == 1
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# date_from is monday
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week_f = date_from
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else
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# find next monday after date_from
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week_f = date_from + (7 - date_from.cwday + 1)
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width = (7 - date_from.cwday + 1) * zoom
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gc.fill('white')
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gc.stroke('grey')
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gc.stroke_width(1)
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gc.rectangle(left, header_heigth, left + width, 2*header_heigth + g_height-1)
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left = left + width
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end
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while week_f <= date_to
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width = (week_f + 6 <= date_to) ? 7 * zoom : (date_to - week_f + 1) * zoom
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gc.fill('white')
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gc.stroke('grey')
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gc.stroke_width(1)
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gc.rectangle(left.round, header_heigth, left.round + width, 2*header_heigth + g_height-1)
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gc.fill('black')
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gc.stroke('transparent')
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gc.stroke_width(1)
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gc.text(left.round + 2, header_heigth + 14, week_f.cweek.to_s)
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left = left + width
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week_f = week_f+7
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end
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end
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# Days details (week-end in grey)
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if show_days
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left = subject_width
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height = g_height + header_heigth - 1
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wday = date_from.cwday
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(date_to - date_from + 1).to_i.times do
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width = zoom
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gc.fill(wday == 6 || wday == 7 ? '#eee' : 'white')
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gc.stroke('grey')
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gc.stroke_width(1)
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gc.rectangle(left, 2*header_heigth, left + width, 2*header_heigth + g_height-1)
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left = left + width
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wday = wday + 1
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wday = 1 if wday > 7
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end
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end
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# border
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gc.fill('transparent')
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gc.stroke('grey')
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gc.stroke_width(1)
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gc.rectangle(0, 0, subject_width+g_width, headers_heigth)
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gc.stroke('black')
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gc.rectangle(0, 0, subject_width+g_width, g_height+ headers_heigth-1)
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# content
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top = headers_heigth + 20
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gc.stroke('transparent')
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events.each do |i|
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if i.is_a?(Issue)
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i_start_date = (i.start_date >= date_from ? i.start_date : date_from )
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i_end_date = (i.due_date <= date_to ? i.due_date : date_to )
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i_done_date = i.start_date + ((i.due_date - i.start_date+1)*i.done_ratio/100).floor
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i_done_date = (i_done_date <= date_from ? date_from : i_done_date )
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i_done_date = (i_done_date >= date_to ? date_to : i_done_date )
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i_late_date = [i_end_date, Date.today].min if i_start_date < Date.today
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i_left = subject_width + ((i_start_date - date_from)*zoom).floor
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i_width = ((i_end_date - i_start_date + 1)*zoom).floor # total width of the issue
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d_width = ((i_done_date - i_start_date)*zoom).floor # done width
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l_width = i_late_date ? ((i_late_date - i_start_date+1)*zoom).floor : 0 # delay width
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gc.fill('grey')
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gc.rectangle(i_left, top, i_left + i_width, top - 6)
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gc.fill('red')
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gc.rectangle(i_left, top, i_left + l_width, top - 6) if l_width > 0
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gc.fill('blue')
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gc.rectangle(i_left, top, i_left + d_width, top - 6) if d_width > 0
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gc.fill('black')
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gc.text(i_left + i_width + 5,top + 1, "#{i.status.name} #{i.done_ratio}%")
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else
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i_left = subject_width + ((i.start_date - date_from)*zoom).floor
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gc.fill('green')
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gc.rectangle(i_left, top, i_left + 6, top - 6)
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gc.fill('black')
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gc.text(i_left + 11, top + 1, i.name)
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end
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top = top + 20
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end
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# today red line
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if Date.today >= @date_from and Date.today <= @date_to
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gc.stroke('red')
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x = (Date.today-@date_from+1)*zoom + subject_width
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gc.line(x, headers_heigth, x, headers_heigth + g_height-1)
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end
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gc.draw(imgl)
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imgl
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end if Object.const_defined?(:Magick)
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end
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@ -22,10 +22,10 @@ g_height = [(20 * @events.length + 6)+150, 206].max
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t_height = g_height + headers_height
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%>
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<% cache(:year => @year_from, :month => @month_from, :months => @months, :zoom => @zoom, :tracker_ids => @selected_tracker_ids, :subprojects => params[:with_subprojects], :lang => current_language) do %>
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<div class="contextual">
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<%= l(:label_export_to) %>
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<%= link_to 'PDF', {:zoom => @zoom, :year => @year_from, :month => @month_from, :months => @months, :tracker_ids => @selected_tracker_ids, :with_subprojects => params[:with_subprojects], :output => 'pdf'}, :class => 'icon icon-pdf' %>
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<%= link_to 'PDF', {:zoom => @zoom, :year => @year_from, :month => @month_from, :months => @months, :tracker_ids => @selected_tracker_ids, :with_subprojects => params[:with_subprojects], :format => 'pdf'}, :class => 'icon icon-pdf' %>
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<%= link_to 'PNG', {:zoom => @zoom, :year => @year_from, :month => @month_from, :months => @months, :tracker_ids => @selected_tracker_ids, :with_subprojects => params[:with_subprojects], :format => 'png'}, :class => 'icon icon-image' if respond_to?('gantt_image') %>
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</div>
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<h2><%= l(:label_gantt) %></h2>
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@ -72,6 +72,8 @@ t_height = g_height + headers_height
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</table>
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<% end %>
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<% cache(:year => @year_from, :month => @month_from, :months => @months, :zoom => @zoom, :tracker_ids => @selected_tracker_ids, :subprojects => params[:with_subprojects], :lang => current_language) do %>
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<table width="100%" style="border:0; border-collapse: collapse;">
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<tr>
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<td style="width:<%= subject_width %>px;">
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@ -2,4 +2,10 @@ require 'redmine/version'
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require 'redmine/mime_type'
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require 'redmine/acts_as_watchable/init'
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begin
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require_library_or_gem 'rmagick' unless Object.const_defined?(:Magick)
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rescue LoadError
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# RMagick is not available
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end
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REDMINE_SUPPORTED_SCM = %w( Subversion Darcs Mercurial Cvs )
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@ -142,6 +142,7 @@ vertical-align: middle;
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.icon-pdf { background-image: url(../images/pdf.png); }
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.icon-csv { background-image: url(../images/csv.png); }
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.icon-html { background-image: url(../images/html.png); }
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.icon-image { background-image: url(../images/image.png); }
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.icon-txt { background-image: url(../images/txt.png); }
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.icon-file { background-image: url(../images/file.png); }
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.icon-folder { background-image: url(../images/folder.png); }
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