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# Redmine - project management software
# Copyright (C) 2006-2011 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 compute the start and end dates of a calendar
class Calendar
include Redmine::I18n
attr_reader :startdt, :enddt
def initialize(date, lang = current_language, period = :month)
@date = date
@events = []
@ending_events_by_days = {}
@starting_events_by_days = {}
set_language_if_valid lang
case period
when :month
@startdt = Date.civil(date.year, date.month, 1)
@enddt = (@startdt >> 1)-1
# starts from the first day of the week
@startdt = @startdt - (@startdt.cwday - first_wday)%7
# ends on the last day of the week
@enddt = @enddt + (last_wday - @enddt.cwday)%7
when :week
@startdt = date - (date.cwday - first_wday)%7
@enddt = date + (last_wday - date.cwday)%7
else
raise 'Invalid period'
end
end
# Sets calendar events
def events=(events)
@events = events
@ending_events_by_days = @events.group_by {|event| event.due_date}
@starting_events_by_days = @events.group_by {|event| event.start_date}
end
# Returns events for the given day
def events_on(day)
((@ending_events_by_days[day] || []) + (@starting_events_by_days[day] || [])).uniq
end
# Calendar current month
def month
@date.month
end
# Return the first day of week
# 1 = Monday ... 7 = Sunday
def first_wday
case Setting.start_of_week.to_i
when 1
@first_dow ||= (1 - 1)%7 + 1
when 6
@first_dow ||= (6 - 1)%7 + 1
when 7
@first_dow ||= (7 - 1)%7 + 1
else
@first_dow ||= (l(:general_first_day_of_week).to_i - 1)%7 + 1
end
end
def last_wday
@last_dow ||= (first_wday + 5)%7 + 1
end
end
end
end
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