Redmine/lib/redmine/helpers/gantt.rb

1005 lines
41 KiB
Ruby

# Redmine - project management software
# Copyright (C) 2006-2008 Jean-Philippe Lang
#
# This program is free software; you can redistribute it and/or
# modify it under the terms of the GNU General Public License
# as published by the Free Software Foundation; either version 2
# of the License, or (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
module Redmine
module Helpers
# Simple class to handle gantt chart data
class Gantt
include ERB::Util
include Redmine::I18n
# :nodoc:
# Some utility methods for the PDF export
class PDF
MaxCharactorsForSubject = 45
TotalWidth = 280
LeftPaneWidth = 100
def self.right_pane_width
TotalWidth - LeftPaneWidth
end
end
attr_reader :year_from, :month_from, :date_from, :date_to, :zoom, :months, :truncated, :max_rows
attr_accessor :query
attr_accessor :project
attr_accessor :view
def initialize(options={})
options = options.dup
if options[:year] && options[:year].to_i >0
@year_from = options[:year].to_i
if options[:month] && options[:month].to_i >=1 && options[:month].to_i <= 12
@month_from = options[:month].to_i
else
@month_from = 1
end
else
@month_from ||= Date.today.month
@year_from ||= Date.today.year
end
zoom = (options[:zoom] || User.current.pref[:gantt_zoom]).to_i
@zoom = (zoom > 0 && zoom < 5) ? zoom : 2
months = (options[:months] || User.current.pref[:gantt_months]).to_i
@months = (months > 0 && months < 25) ? months : 6
# Save gantt parameters as user preference (zoom and months count)
if (User.current.logged? && (@zoom != User.current.pref[:gantt_zoom] || @months != User.current.pref[:gantt_months]))
User.current.pref[:gantt_zoom], User.current.pref[:gantt_months] = @zoom, @months
User.current.preference.save
end
@date_from = Date.civil(@year_from, @month_from, 1)
@date_to = (@date_from >> @months) - 1
@subjects = ''
@lines = ''
@number_of_rows = nil
@truncated = false
if options.has_key?(:max_rows)
@max_rows = options[:max_rows]
else
@max_rows = Setting.gantt_items_limit.blank? ? nil : Setting.gantt_items_limit.to_i
end
end
def common_params
{ :controller => 'gantts', :action => 'show', :project_id => @project }
end
def params
common_params.merge({ :zoom => zoom, :year => year_from, :month => month_from, :months => months })
end
def params_previous
common_params.merge({:year => (date_from << months).year, :month => (date_from << months).month, :zoom => zoom, :months => months })
end
def params_next
common_params.merge({:year => (date_from >> months).year, :month => (date_from >> months).month, :zoom => zoom, :months => months })
end
### Extracted from the HTML view/helpers
# Returns the number of rows that will be rendered on the Gantt chart
def number_of_rows
return @number_of_rows if @number_of_rows
rows = if @project
number_of_rows_on_project(@project)
else
Project.roots.visible.has_module('issue_tracking').inject(0) do |total, project|
total += number_of_rows_on_project(project)
end
end
rows > @max_rows ? @max_rows : rows
end
# Returns the number of rows that will be used to list a project on
# the Gantt chart. This will recurse for each subproject.
def number_of_rows_on_project(project)
# Remove the project requirement for Versions because it will
# restrict issues to only be on the current project. This
# ends up missing issues which are assigned to shared versions.
@query.project = nil if @query.project
# One Root project
count = 1
# Issues without a Version
count += project.issues.for_gantt.without_version.with_query(@query).count
# Versions
count += project.versions.count
# Issues on the Versions
project.versions.each do |version|
count += version.fixed_issues.for_gantt.with_query(@query).count
end
# Subprojects
project.children.visible.has_module('issue_tracking').each do |subproject|
count += number_of_rows_on_project(subproject)
end
count
end
# Renders the subjects of the Gantt chart, the left side.
def subjects(options={})
render(options.merge(:only => :subjects)) unless @subjects_rendered
@subjects
end
# Renders the lines of the Gantt chart, the right side
def lines(options={})
render(options.merge(:only => :lines)) unless @lines_rendered
@lines
end
def render(options={})
options = {:indent => 4, :render => :subject, :format => :html}.merge(options)
@subjects = '' unless options[:only] == :lines
@lines = '' unless options[:only] == :subjects
@number_of_rows = 0
if @project
render_project(@project, options)
else
Project.roots.visible.has_module('issue_tracking').each do |project|
render_project(project, options)
break if abort?
end
end
@subjects_rendered = true unless options[:only] == :lines
@lines_rendered = true unless options[:only] == :subjects
render_end(options)
end
def render_project(project, options={})
options[:top] = 0 unless options.key? :top
options[:indent_increment] = 20 unless options.key? :indent_increment
options[:top_increment] = 20 unless options.key? :top_increment
subject_for_project(project, options) unless options[:only] == :lines
line_for_project(project, options) unless options[:only] == :subjects
options[:top] += options[:top_increment]
options[:indent] += options[:indent_increment]
@number_of_rows += 1
return if abort?
# Second, Issues without a version
issues = project.issues.for_gantt.without_version.with_query(@query).all(:limit => current_limit)
sort_issues!(issues)
if issues
render_issues(issues, options)
return if abort?
end
# Third, Versions
project.versions.sort.each do |version|
render_version(version, options)
return if abort?
end
# Fourth, subprojects
project.children.visible.has_module('issue_tracking').each do |project|
render_project(project, options)
return if abort?
end
# Remove indent to hit the next sibling
options[:indent] -= options[:indent_increment]
end
def render_issues(issues, options={})
issues.each do |i|
subject_for_issue(i, options) unless options[:only] == :lines
line_for_issue(i, options) unless options[:only] == :subjects
options[:top] += options[:top_increment]
@number_of_rows += 1
return if abort?
end
end
def render_version(version, options={})
# Version header
subject_for_version(version, options) unless options[:only] == :lines
line_for_version(version, options) unless options[:only] == :subjects
options[:top] += options[:top_increment]
@number_of_rows += 1
return if abort?
# Remove the project requirement for Versions because it will
# restrict issues to only be on the current project. This
# ends up missing issues which are assigned to shared versions.
@query.project = nil if @query.project
issues = version.fixed_issues.for_gantt.with_query(@query).all(:limit => current_limit)
if issues
sort_issues!(issues)
# Indent issues
options[:indent] += options[:indent_increment]
render_issues(issues, options)
options[:indent] -= options[:indent_increment]
end
end
def render_end(options={})
case options[:format]
when :pdf
options[:pdf].Line(15, options[:top], PDF::TotalWidth, options[:top])
end
end
def subject_for_project(project, options)
case options[:format]
when :html
output = ''
output << "<div class='project-name' style='position: absolute;line-height:1.2em;height:16px;top:#{options[:top]}px;left:#{options[:indent]}px;overflow:hidden;'><small> "
if project.is_a? Project
output << "<span class='icon icon-projects #{project.overdue? ? 'project-overdue' : ''}'>"
output << view.link_to_project(project)
output << '</span>'
else
ActiveRecord::Base.logger.debug "Gantt#subject_for_project was not given a project"
''
end
output << "</small></div>"
@subjects << output
output
when :image
options[:image].fill('black')
options[:image].stroke('transparent')
options[:image].stroke_width(1)
options[:image].text(options[:indent], options[:top] + 2, project.name)
when :pdf
pdf_new_page?(options)
options[:pdf].SetY(options[:top])
options[:pdf].SetX(15)
char_limit = PDF::MaxCharactorsForSubject - options[:indent]
options[:pdf].Cell(options[:subject_width]-15, 5, (" " * options[:indent]) +"#{project.name}".sub(/^(.{#{char_limit}}[^\s]*\s).*$/, '\1 (...)'), "LR")
options[:pdf].SetY(options[:top])
options[:pdf].SetX(options[:subject_width])
options[:pdf].Cell(options[:g_width], 5, "", "LR")
end
end
def line_for_project(project, options)
# Skip versions that don't have a start_date or due date
if project.is_a?(Project) && project.start_date && project.due_date
options[:zoom] ||= 1
options[:g_width] ||= (self.date_to - self.date_from + 1) * options[:zoom]
case options[:format]
when :html
output = ''
i_left = ((project.start_date - self.date_from)*options[:zoom]).floor
start_date = project.start_date
start_date ||= self.date_from
start_left = ((start_date - self.date_from)*options[:zoom]).floor
i_end_date = ((project.due_date <= self.date_to) ? project.due_date : self.date_to )
i_done_date = start_date + ((project.due_date - start_date+1)* project.completed_percent(:include_subprojects => true)/100).floor
i_done_date = (i_done_date <= self.date_from ? self.date_from : i_done_date )
i_done_date = (i_done_date >= self.date_to ? self.date_to : i_done_date )
i_late_date = [i_end_date, Date.today].min if start_date < Date.today
i_end = ((i_end_date - self.date_from) * options[:zoom]).floor
i_width = (i_end - i_left + 1).floor - 2 # total width of the issue (- 2 for left and right borders)
d_width = ((i_done_date - start_date)*options[:zoom]).floor - 2 # done width
l_width = i_late_date ? ((i_late_date - start_date+1)*options[:zoom]).floor - 2 : 0 # delay width
# Bar graphic
# Make sure that negative i_left and i_width don't
# overflow the subject
if i_end > 0 && i_left <= options[:g_width]
output << "<div style='top:#{ options[:top] }px;left:#{ start_left }px;width:#{ i_width }px;' class='task project_todo'>&nbsp;</div>"
end
if l_width > 0 && i_left <= options[:g_width]
output << "<div style='top:#{ options[:top] }px;left:#{ start_left }px;width:#{ l_width }px;' class='task project_late'>&nbsp;</div>"
end
if d_width > 0 && i_left <= options[:g_width]
output<< "<div style='top:#{ options[:top] }px;left:#{ start_left }px;width:#{ d_width }px;' class='task project_done'>&nbsp;</div>"
end
# Starting diamond
if start_left <= options[:g_width] && start_left > 0
output << "<div style='top:#{ options[:top] }px;left:#{ start_left }px;width:15px;' class='task project-line starting'>&nbsp;</div>"
output << "<div style='top:#{ options[:top] }px;left:#{ start_left + 12 }px;' class='task label'>"
output << "</div>"
end
# Ending diamond
# Don't show items too far ahead
if i_end <= options[:g_width] && i_end > 0
output << "<div style='top:#{ options[:top] }px;left:#{ i_end }px;width:15px;' class='task project-line ending'>&nbsp;</div>"
end
# DIsplay the Project name and %
if i_end <= options[:g_width]
# Display the status even if it's floated off to the left
status_px = i_end + 12 # 12px for the diamond
status_px = 0 if status_px <= 0
output << "<div style='top:#{ options[:top] }px;left:#{ status_px }px;' class='task label project-name'>"
output << "<strong>#{h project } #{h project.completed_percent(:include_subprojects => true).to_i.to_s}%</strong>"
output << "</div>"
end
@lines << output
output
when :image
options[:image].stroke('transparent')
i_left = options[:subject_width] + ((project.due_date - self.date_from)*options[:zoom]).floor
# Make sure negative i_left doesn't overflow the subject
if i_left > options[:subject_width]
options[:image].fill('blue')
options[:image].rectangle(i_left, options[:top], i_left + 6, options[:top] - 6)
options[:image].fill('black')
options[:image].text(i_left + 11, options[:top] + 1, project.name)
end
when :pdf
options[:pdf].SetY(options[:top]+1.5)
i_left = ((project.due_date - @date_from)*options[:zoom])
# Make sure negative i_left doesn't overflow the subject
if i_left > 0
options[:pdf].SetX(options[:subject_width] + i_left)
options[:pdf].SetFillColor(50,50,200)
options[:pdf].Cell(2, 2, "", 0, 0, "", 1)
options[:pdf].SetY(options[:top]+1.5)
options[:pdf].SetX(options[:subject_width] + i_left + 3)
options[:pdf].Cell(30, 2, "#{project.name}")
end
end
else
ActiveRecord::Base.logger.debug "Gantt#line_for_project was not given a project with a start_date"
''
end
end
def subject_for_version(version, options)
case options[:format]
when :html
output = ''
output << "<div class='version-name' style='position: absolute;line-height:1.2em;height:16px;top:#{options[:top]}px;left:#{options[:indent]}px;overflow:hidden;'><small> "
if version.is_a? Version
output << "<span class='icon icon-package #{version.behind_schedule? ? 'version-behind-schedule' : ''} #{version.overdue? ? 'version-overdue' : ''}'>"
output << view.link_to_version(version)
output << '</span>'
else
ActiveRecord::Base.logger.debug "Gantt#subject_for_version was not given a version"
''
end
output << "</small></div>"
@subjects << output
output
when :image
options[:image].fill('black')
options[:image].stroke('transparent')
options[:image].stroke_width(1)
options[:image].text(options[:indent], options[:top] + 2, version.to_s_with_project)
when :pdf
pdf_new_page?(options)
options[:pdf].SetY(options[:top])
options[:pdf].SetX(15)
char_limit = PDF::MaxCharactorsForSubject - options[:indent]
options[:pdf].Cell(options[:subject_width]-15, 5, (" " * options[:indent]) +"#{version.to_s_with_project}".sub(/^(.{#{char_limit}}[^\s]*\s).*$/, '\1 (...)'), "LR")
options[:pdf].SetY(options[:top])
options[:pdf].SetX(options[:subject_width])
options[:pdf].Cell(options[:g_width], 5, "", "LR")
end
end
def line_for_version(version, options)
# Skip versions that don't have a start_date
if version.is_a?(Version) && version.start_date && version.due_date
options[:zoom] ||= 1
options[:g_width] ||= (self.date_to - self.date_from + 1) * options[:zoom]
case options[:format]
when :html
output = ''
i_left = ((version.start_date - self.date_from)*options[:zoom]).floor
# TODO: or version.fixed_issues.collect(&:start_date).min
start_date = version.fixed_issues.minimum('start_date') if version.fixed_issues.present?
start_date ||= self.date_from
start_left = ((start_date - self.date_from)*options[:zoom]).floor
i_end_date = ((version.due_date <= self.date_to) ? version.due_date : self.date_to )
i_done_date = start_date + ((version.due_date - start_date+1)* version.completed_pourcent/100).floor
i_done_date = (i_done_date <= self.date_from ? self.date_from : i_done_date )
i_done_date = (i_done_date >= self.date_to ? self.date_to : i_done_date )
i_late_date = [i_end_date, Date.today].min if start_date < Date.today
i_width = (i_left - start_left + 1).floor - 2 # total width of the issue (- 2 for left and right borders)
d_width = ((i_done_date - start_date)*options[:zoom]).floor - 2 # done width
l_width = i_late_date ? ((i_late_date - start_date+1)*options[:zoom]).floor - 2 : 0 # delay width
i_end = ((i_end_date - self.date_from) * options[:zoom]).floor # Ending pixel
# Bar graphic
# Make sure that negative i_left and i_width don't
# overflow the subject
if i_width > 0 && i_left <= options[:g_width]
output << "<div style='top:#{ options[:top] }px;left:#{ start_left }px;width:#{ i_width }px;' class='task milestone_todo'>&nbsp;</div>"
end
if l_width > 0 && i_left <= options[:g_width]
output << "<div style='top:#{ options[:top] }px;left:#{ start_left }px;width:#{ l_width }px;' class='task milestone_late'>&nbsp;</div>"
end
if d_width > 0 && i_left <= options[:g_width]
output<< "<div style='top:#{ options[:top] }px;left:#{ start_left }px;width:#{ d_width }px;' class='task milestone_done'>&nbsp;</div>"
end
# Starting diamond
if start_left <= options[:g_width] && start_left > 0
output << "<div style='top:#{ options[:top] }px;left:#{ start_left }px;width:15px;' class='task milestone starting'>&nbsp;</div>"
output << "<div style='top:#{ options[:top] }px;left:#{ start_left + 12 }px;background:#fff;' class='task'>"
output << "</div>"
end
# Ending diamond
# Don't show items too far ahead
if i_left <= options[:g_width] && i_end > 0
output << "<div style='top:#{ options[:top] }px;left:#{ i_end }px;width:15px;' class='task milestone ending'>&nbsp;</div>"
end
# Display the Version name and %
if i_end <= options[:g_width]
# Display the status even if it's floated off to the left
status_px = i_end + 12 # 12px for the diamond
status_px = 0 if status_px <= 0
output << "<div style='top:#{ options[:top] }px;left:#{ status_px }px;' class='task label version-name'>"
output << h("#{version.project} -") unless @project && @project == version.project
output << "<strong>#{h version } #{h version.completed_pourcent.to_i.to_s}%</strong>"
output << "</div>"
end
@lines << output
output
when :image
options[:image].stroke('transparent')
i_left = options[:subject_width] + ((version.start_date - @date_from)*options[:zoom]).floor
# Make sure negative i_left doesn't overflow the subject
if i_left > options[:subject_width]
options[:image].fill('green')
options[:image].rectangle(i_left, options[:top], i_left + 6, options[:top] - 6)
options[:image].fill('black')
options[:image].text(i_left + 11, options[:top] + 1, version.name)
end
when :pdf
options[:pdf].SetY(options[:top]+1.5)
i_left = ((version.start_date - @date_from)*options[:zoom])
# Make sure negative i_left doesn't overflow the subject
if i_left > 0
options[:pdf].SetX(options[:subject_width] + i_left)
options[:pdf].SetFillColor(50,200,50)
options[:pdf].Cell(2, 2, "", 0, 0, "", 1)
options[:pdf].SetY(options[:top]+1.5)
options[:pdf].SetX(options[:subject_width] + i_left + 3)
options[:pdf].Cell(30, 2, "#{version.name}")
end
end
else
ActiveRecord::Base.logger.debug "Gantt#line_for_version was not given a version with a start_date"
''
end
end
def subject_for_issue(issue, options)
case options[:format]
when :html
output = ''
output << "<div class='tooltip'>"
output << "<div class='issue-subject' style='position: absolute;line-height:1.2em;height:16px;top:#{options[:top]}px;left:#{options[:indent]}px;overflow:hidden;'><small> "
if issue.is_a? Issue
css_classes = []
css_classes << 'issue-overdue' if issue.overdue?
css_classes << 'issue-behind-schedule' if issue.behind_schedule?
css_classes << 'icon icon-issue' unless Setting.gravatar_enabled? && issue.assigned_to
if issue.assigned_to.present?
assigned_string = l(:field_assigned_to) + ": " + issue.assigned_to.name
output << view.avatar(issue.assigned_to, :class => 'gravatar icon-gravatar', :size => 10, :title => assigned_string)
end
output << "<span class='#{css_classes.join(' ')}'>"
output << view.link_to_issue(issue)
output << '</span>'
else
ActiveRecord::Base.logger.debug "Gantt#subject_for_issue was not given an issue"
''
end
output << "</small></div>"
# Tooltip
if issue.is_a? Issue
output << "<span class='tip' style='position: absolute;top:#{ options[:top].to_i + 16 }px;left:#{ options[:indent].to_i + 20 }px;'>"
output << view.render_issue_tooltip(issue)
output << "</span>"
end
output << "</div>"
@subjects << output
output
when :image
options[:image].fill('black')
options[:image].stroke('transparent')
options[:image].stroke_width(1)
options[:image].text(options[:indent], options[:top] + 2, issue.subject)
when :pdf
pdf_new_page?(options)
options[:pdf].SetY(options[:top])
options[:pdf].SetX(15)
char_limit = PDF::MaxCharactorsForSubject - options[:indent]
options[:pdf].Cell(options[:subject_width]-15, 5, (" " * options[:indent]) +"#{issue.tracker} #{issue.id}: #{issue.subject}".sub(/^(.{#{char_limit}}[^\s]*\s).*$/, '\1 (...)'), "LR")
options[:pdf].SetY(options[:top])
options[:pdf].SetX(options[:subject_width])
options[:pdf].Cell(options[:g_width], 5, "", "LR")
end
end
def line_for_issue(issue, options)
# Skip issues that don't have a due_before (due_date or version's due_date)
if issue.is_a?(Issue) && issue.due_before
case options[:format]
when :html
output = ''
# Handle nil start_dates, rare but can happen.
i_start_date = if issue.start_date && issue.start_date >= self.date_from
issue.start_date
else
self.date_from
end
i_end_date = ((issue.due_before && issue.due_before <= self.date_to) ? issue.due_before : self.date_to )
i_done_date = i_start_date + ((issue.due_before - i_start_date+1)*issue.done_ratio/100).floor
i_done_date = (i_done_date <= self.date_from ? self.date_from : i_done_date )
i_done_date = (i_done_date >= self.date_to ? self.date_to : i_done_date )
i_late_date = [i_end_date, Date.today].min if i_start_date < Date.today
i_left = ((i_start_date - self.date_from)*options[:zoom]).floor
i_width = ((i_end_date - i_start_date + 1)*options[:zoom]).floor - 2 # total width of the issue (- 2 for left and right borders)
d_width = ((i_done_date - i_start_date)*options[:zoom]).floor - 2 # done width
l_width = i_late_date ? ((i_late_date - i_start_date+1)*options[:zoom]).floor - 2 : 0 # delay width
css = "task " + (issue.leaf? ? 'leaf' : 'parent')
# Make sure that negative i_left and i_width don't
# overflow the subject
if i_width > 0
output << "<div style='top:#{ options[:top] }px;left:#{ i_left }px;width:#{ i_width }px;' class='#{css} task_todo'>&nbsp;</div>"
end
if l_width > 0
output << "<div style='top:#{ options[:top] }px;left:#{ i_left }px;width:#{ l_width }px;' class='#{css} task_late'>&nbsp;</div>"
end
if d_width > 0
output<< "<div style='top:#{ options[:top] }px;left:#{ i_left }px;width:#{ d_width }px;' class='#{css} task_done'>&nbsp;</div>"
end
# Display the status even if it's floated off to the left
status_px = i_left + i_width + 5
status_px = 5 if status_px <= 0
output << "<div style='top:#{ options[:top] }px;left:#{ status_px }px;' class='#{css} label issue-name'>"
output << issue.status.name
output << ' '
output << (issue.done_ratio).to_i.to_s
output << "%"
output << "</div>"
output << "<div class='tooltip' style='position: absolute;top:#{ options[:top] }px;left:#{ i_left }px;width:#{ i_width }px;height:12px;'>"
output << '<span class="tip">'
output << view.render_issue_tooltip(issue)
output << "</span></div>"
@lines << output
output
when :image
# Handle nil start_dates, rare but can happen.
i_start_date = if issue.start_date && issue.start_date >= @date_from
issue.start_date
else
@date_from
end
i_end_date = (issue.due_before <= date_to ? issue.due_before : date_to )
i_done_date = i_start_date + ((issue.due_before - i_start_date+1)*issue.done_ratio/100).floor
i_done_date = (i_done_date <= @date_from ? @date_from : i_done_date )
i_done_date = (i_done_date >= date_to ? date_to : i_done_date )
i_late_date = [i_end_date, Date.today].min if i_start_date < Date.today
i_left = options[:subject_width] + ((i_start_date - @date_from)*options[:zoom]).floor
i_width = ((i_end_date - i_start_date + 1)*options[:zoom]).floor # total width of the issue
d_width = ((i_done_date - i_start_date)*options[:zoom]).floor # done width
l_width = i_late_date ? ((i_late_date - i_start_date+1)*options[:zoom]).floor : 0 # delay width
# Make sure that negative i_left and i_width don't
# overflow the subject
if i_width > 0
options[:image].fill('grey')
options[:image].rectangle(i_left, options[:top], i_left + i_width, options[:top] - 6)
options[:image].fill('red')
options[:image].rectangle(i_left, options[:top], i_left + l_width, options[:top] - 6) if l_width > 0
options[:image].fill('blue')
options[:image].rectangle(i_left, options[:top], i_left + d_width, options[:top] - 6) if d_width > 0
end
# Show the status and % done next to the subject if it overflows
options[:image].fill('black')
if i_width > 0
options[:image].text(i_left + i_width + 5,options[:top] + 1, "#{issue.status.name} #{issue.done_ratio}%")
else
options[:image].text(options[:subject_width] + 5,options[:top] + 1, "#{issue.status.name} #{issue.done_ratio}%")
end
when :pdf
options[:pdf].SetY(options[:top]+1.5)
# Handle nil start_dates, rare but can happen.
i_start_date = if issue.start_date && issue.start_date >= @date_from
issue.start_date
else
@date_from
end
i_end_date = (issue.due_before <= @date_to ? issue.due_before : @date_to )
i_done_date = i_start_date + ((issue.due_before - i_start_date+1)*issue.done_ratio/100).floor
i_done_date = (i_done_date <= @date_from ? @date_from : i_done_date )
i_done_date = (i_done_date >= @date_to ? @date_to : i_done_date )
i_late_date = [i_end_date, Date.today].min if i_start_date < Date.today
i_left = ((i_start_date - @date_from)*options[:zoom])
i_width = ((i_end_date - i_start_date + 1)*options[:zoom])
d_width = ((i_done_date - i_start_date)*options[:zoom])
l_width = ((i_late_date - i_start_date+1)*options[:zoom]) if i_late_date
l_width ||= 0
# Make sure that negative i_left and i_width don't
# overflow the subject
if i_width > 0
options[:pdf].SetX(options[:subject_width] + i_left)
options[:pdf].SetFillColor(200,200,200)
options[:pdf].Cell(i_width, 2, "", 0, 0, "", 1)
end
if l_width > 0
options[:pdf].SetY(options[:top]+1.5)
options[:pdf].SetX(options[:subject_width] + i_left)
options[:pdf].SetFillColor(255,100,100)
options[:pdf].Cell(l_width, 2, "", 0, 0, "", 1)
end
if d_width > 0
options[:pdf].SetY(options[:top]+1.5)
options[:pdf].SetX(options[:subject_width] + i_left)
options[:pdf].SetFillColor(100,100,255)
options[:pdf].Cell(d_width, 2, "", 0, 0, "", 1)
end
options[:pdf].SetY(options[:top]+1.5)
# Make sure that negative i_left and i_width don't
# overflow the subject
if (i_left + i_width) >= 0
options[:pdf].SetX(options[:subject_width] + i_left + i_width)
else
options[:pdf].SetX(options[:subject_width])
end
options[:pdf].Cell(30, 2, "#{issue.status} #{issue.done_ratio}%")
end
else
ActiveRecord::Base.logger.debug "GanttHelper#line_for_issue was not given an issue with a due_before"
''
end
end
# Generates a gantt image
# Only defined if RMagick is avalaible
def to_image(format='PNG')
date_to = (@date_from >> @months)-1
show_weeks = @zoom > 1
show_days = @zoom > 2
subject_width = 400
header_heigth = 18
# width of one day in pixels
zoom = @zoom*2
g_width = (@date_to - @date_from + 1)*zoom
g_height = 20 * number_of_rows + 30
headers_heigth = (show_weeks ? 2*header_heigth : header_heigth)
height = g_height + headers_heigth
imgl = Magick::ImageList.new
imgl.new_image(subject_width+g_width+1, height)
gc = Magick::Draw.new
# Subjects
subjects(:image => gc, :top => (headers_heigth + 20), :indent => 4, :format => :image)
# Months headers
month_f = @date_from
left = subject_width
@months.times do
width = ((month_f >> 1) - month_f) * zoom
gc.fill('white')
gc.stroke('grey')
gc.stroke_width(1)
gc.rectangle(left, 0, left + width, height)
gc.fill('black')
gc.stroke('transparent')
gc.stroke_width(1)
gc.text(left.round + 8, 14, "#{month_f.year}-#{month_f.month}")
left = left + width
month_f = month_f >> 1
end
# Weeks headers
if show_weeks
left = subject_width
height = header_heigth
if @date_from.cwday == 1
# date_from is monday
week_f = date_from
else
# find next monday after date_from
week_f = @date_from + (7 - @date_from.cwday + 1)
width = (7 - @date_from.cwday + 1) * zoom
gc.fill('white')
gc.stroke('grey')
gc.stroke_width(1)
gc.rectangle(left, header_heigth, left + width, 2*header_heigth + g_height-1)
left = left + width
end
while week_f <= date_to
width = (week_f + 6 <= date_to) ? 7 * zoom : (date_to - week_f + 1) * zoom
gc.fill('white')
gc.stroke('grey')
gc.stroke_width(1)
gc.rectangle(left.round, header_heigth, left.round + width, 2*header_heigth + g_height-1)
gc.fill('black')
gc.stroke('transparent')
gc.stroke_width(1)
gc.text(left.round + 2, header_heigth + 14, week_f.cweek.to_s)
left = left + width
week_f = week_f+7
end
end
# Days details (week-end in grey)
if show_days
left = subject_width
height = g_height + header_heigth - 1
wday = @date_from.cwday
(date_to - @date_from + 1).to_i.times do
width = zoom
gc.fill(wday == 6 || wday == 7 ? '#eee' : 'white')
gc.stroke('grey')
gc.stroke_width(1)
gc.rectangle(left, 2*header_heigth, left + width, 2*header_heigth + g_height-1)
left = left + width
wday = wday + 1
wday = 1 if wday > 7
end
end
# border
gc.fill('transparent')
gc.stroke('grey')
gc.stroke_width(1)
gc.rectangle(0, 0, subject_width+g_width, headers_heigth)
gc.stroke('black')
gc.rectangle(0, 0, subject_width+g_width, g_height+ headers_heigth-1)
# content
top = headers_heigth + 20
lines(:image => gc, :top => top, :zoom => zoom, :subject_width => subject_width, :format => :image)
# today red line
if Date.today >= @date_from and Date.today <= date_to
gc.stroke('red')
x = (Date.today-@date_from+1)*zoom + subject_width
gc.line(x, headers_heigth, x, headers_heigth + g_height-1)
end
gc.draw(imgl)
imgl.format = format
imgl.to_blob
end if Object.const_defined?(:Magick)
def to_pdf
pdf = ::Redmine::Export::PDF::IFPDF.new(current_language)
pdf.SetTitle("#{l(:label_gantt)} #{project}")
pdf.AliasNbPages
pdf.footer_date = format_date(Date.today)
pdf.AddPage("L")
pdf.SetFontStyle('B',12)
pdf.SetX(15)
pdf.Cell(PDF::LeftPaneWidth, 20, project.to_s)
pdf.Ln
pdf.SetFontStyle('B',9)
subject_width = PDF::LeftPaneWidth
header_heigth = 5
headers_heigth = header_heigth
show_weeks = false
show_days = false
if self.months < 7
show_weeks = true
headers_heigth = 2*header_heigth
if self.months < 3
show_days = true
headers_heigth = 3*header_heigth
end
end
g_width = PDF.right_pane_width
zoom = (g_width) / (self.date_to - self.date_from + 1)
g_height = 120
t_height = g_height + headers_heigth
y_start = pdf.GetY
# Months headers
month_f = self.date_from
left = subject_width
height = header_heigth
self.months.times do
width = ((month_f >> 1) - month_f) * zoom
pdf.SetY(y_start)
pdf.SetX(left)
pdf.Cell(width, height, "#{month_f.year}-#{month_f.month}", "LTR", 0, "C")
left = left + width
month_f = month_f >> 1
end
# Weeks headers
if show_weeks
left = subject_width
height = header_heigth
if self.date_from.cwday == 1
# self.date_from is monday
week_f = self.date_from
else
# find next monday after self.date_from
week_f = self.date_from + (7 - self.date_from.cwday + 1)
width = (7 - self.date_from.cwday + 1) * zoom-1
pdf.SetY(y_start + header_heigth)
pdf.SetX(left)
pdf.Cell(width + 1, height, "", "LTR")
left = left + width+1
end
while week_f <= self.date_to
width = (week_f + 6 <= self.date_to) ? 7 * zoom : (self.date_to - week_f + 1) * zoom
pdf.SetY(y_start + header_heigth)
pdf.SetX(left)
pdf.Cell(width, height, (width >= 5 ? week_f.cweek.to_s : ""), "LTR", 0, "C")
left = left + width
week_f = week_f+7
end
end
# Days headers
if show_days
left = subject_width
height = header_heigth
wday = self.date_from.cwday
pdf.SetFontStyle('B',7)
(self.date_to - self.date_from + 1).to_i.times do
width = zoom
pdf.SetY(y_start + 2 * header_heigth)
pdf.SetX(left)
pdf.Cell(width, height, day_name(wday).first, "LTR", 0, "C")
left = left + width
wday = wday + 1
wday = 1 if wday > 7
end
end
pdf.SetY(y_start)
pdf.SetX(15)
pdf.Cell(subject_width+g_width-15, headers_heigth, "", 1)
# Tasks
top = headers_heigth + y_start
options = {
:top => top,
:zoom => zoom,
:subject_width => subject_width,
:g_width => g_width,
:indent => 0,
:indent_increment => 5,
:top_increment => 5,
:format => :pdf,
:pdf => pdf
}
render(options)
pdf.Output
end
private
# Sorts a collection of issues by start_date, due_date, id for gantt rendering
def sort_issues!(issues)
issues.sort! do |a, b|
cmp = 0
cmp = (a.start_date <=> b.start_date) if a.start_date? && b.start_date?
cmp = (a.due_date <=> b.due_date) if cmp == 0 && a.due_date? && b.due_date?
cmp = (a.id <=> b.id) if cmp == 0
cmp
end
end
def current_limit
if @max_rows
@max_rows - @number_of_rows
else
nil
end
end
def abort?
if @max_rows && @number_of_rows >= @max_rows
@truncated = true
end
end
def pdf_new_page?(options)
if options[:top] > 180
options[:pdf].Line(15, options[:top], PDF::TotalWidth, options[:top])
options[:pdf].AddPage("L")
options[:top] = 15
options[:pdf].Line(15, options[:top] - 0.1, PDF::TotalWidth, options[:top] - 0.1)
end
end
end
end
end