SoundSoftware Code Site

# encoding: utf-8

#

# 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.

require 'iconv'

require 'rfpdf/fpdf'

require 'fpdf/chinese'

require 'fpdf/japanese'

require 'fpdf/korean'

module Redmine

  module Export

    module PDF

      include ActionView::Helpers::TextHelper

      include ActionView::Helpers::NumberHelper

      class ITCPDF < TCPDF

        include Redmine::I18n

        attr_accessor :footer_date

        def initialize(lang)

          set_language_if_valid lang

          pdf_encoding = l(:general_pdf_encoding).upcase

          if RUBY_VERSION < '1.9'

            @ic = Iconv.new(pdf_encoding, 'UTF-8')

          end

          super('P', 'mm', 'A4', (pdf_encoding == 'UTF-8'), pdf_encoding)

          case pdf_encoding

          when 'UTF-8'

            @font_for_content = 'FreeSans'

            @font_for_footer  = 'FreeSans'

          when 'CP949'

            extend(PDF_Korean)

            AddUHCFont()

            @font_for_content = 'UHC'

            @font_for_footer  = 'UHC'

          when 'CP932'

            extend(PDF_Japanese)

            AddSJISFont()

            @font_for_content = 'SJIS'

            @font_for_footer  = 'SJIS'

          when 'GB18030'

            extend(PDF_Chinese)

            AddGBFont()

            @font_for_content = 'GB'

            @font_for_footer  = 'GB'

          when 'BIG5'

            extend(PDF_Chinese)

            AddBig5Font()

            @font_for_content = 'Big5'

            @font_for_footer  = 'Big5'

          else

            @font_for_content = 'Arial'

            @font_for_footer  = 'Helvetica'

          end

          SetCreator(Redmine::Info.app_name)

          SetFont(@font_for_content)

        end

        def SetFontStyle(style, size)

          SetFont(@font_for_content, style, size)

        end

        def SetTitle(txt)

          txt = begin

            utf16txt = Iconv.conv('UTF-16BE', 'UTF-8', txt)

            hextxt = "<FEFF"  # FEFF is BOM

            hextxt << utf16txt.unpack("C*").map {|x| sprintf("%02X",x) }.join

            hextxt << ">"

          rescue

            txt

          end || ''

          super(txt)

        end

        def textstring(s)

          # Format a text string

          if s =~ /^</  # This means the string is hex-dumped.

            return s

          else

            return '('+escape(s)+')'

          end

        end

        def fix_text_encoding(txt)

          RDMPdfEncoding::rdm_pdf_iconv(@ic, txt)

        end

        def RDMCell(w,h=0,txt='',border=0,ln=0,align='',fill=0,link='')

          Cell(w,h,fix_text_encoding(txt),border,ln,align,fill,link)

        end

        def RDMMultiCell(w,h=0,txt='',border=0,align='',fill=0)

          MultiCell(w,h,fix_text_encoding(txt),border,align,fill)

        end

        def Footer

          SetFont(@font_for_footer, 'I', 8)

          SetY(-15)

          SetX(15)

          RDMCell(0, 5, @footer_date, 0, 0, 'L')

          SetY(-15)

          SetX(-30)

          RDMCell(0, 5, PageNo().to_s + '/{nb}', 0, 0, 'C')

        end

      end

      # Returns a PDF string of a list of issues

      def issues_to_pdf(issues, project, query)

        pdf = ITCPDF.new(current_language)

        title = query.new_record? ? l(:label_issue_plural) : query.name

        title = "#{project} - #{title}" if project

        pdf.SetTitle(title)

        pdf.alias_nb_pages

        pdf.footer_date = format_date(Date.today)

        pdf.SetAutoPageBreak(false)

        pdf.AddPage("L")

        # Landscape A4 = 210 x 297 mm

        page_height   = 210

        page_width    = 297

        right_margin  = 10

        bottom_margin = 20

        col_id_width  = 10

        row_height    = 5

        # column widths

        table_width = page_width - right_margin - 10  # fixed left margin

        col_width = []

        unless query.columns.empty?

          col_width = query.columns.collect do |c|

            (c.name == :subject || (c.is_a?(QueryCustomFieldColumn) && ['string', 'text'].include?(c.custom_field.field_format)))? 4.0 : 1.0

          end

          ratio = (table_width - col_id_width) / col_width.inject(0) {|s,w| s += w}

          col_width = col_width.collect {|w| w * ratio}

        end

        # title

        pdf.SetFontStyle('B',11)

        pdf.RDMCell(190,10, title)

        pdf.Ln

        # headers

        pdf.SetFontStyle('B',8)

        pdf.SetFillColor(230, 230, 230)

        # render it background to find the max height used

        base_x = pdf.GetX

        base_y = pdf.GetY

        max_height = issues_to_pdf_write_cells(pdf, query.columns, col_width, row_height, true)

        pdf.Rect(base_x, base_y, table_width, max_height, 'FD');

        pdf.SetXY(base_x, base_y);

        # write the cells on page

        pdf.RDMCell(col_id_width, row_height, "#", "T", 0, 'C', 1)

        issues_to_pdf_write_cells(pdf, query.columns, col_width, row_height, true)

        issues_to_pdf_draw_borders(pdf, base_x, base_y, base_y + max_height, col_id_width, col_width)

        pdf.SetY(base_y + max_height);

        # rows

        pdf.SetFontStyle('',8)

        pdf.SetFillColor(255, 255, 255)

        previous_group = false

        issues.each do |issue|

          if query.grouped? &&

               (group = query.group_by_column.value(issue)) != previous_group

            pdf.SetFontStyle('B',9)

            pdf.RDMCell(277, row_height,

              (group.blank? ? 'None' : group.to_s) + " (#{query.issue_count_by_group[group]})",

              1, 1, 'L')

            pdf.SetFontStyle('',8)

            previous_group = group

          end

          # fetch all the row values

          col_values = query.columns.collect do |column|

            s = if column.is_a?(QueryCustomFieldColumn)

              cv = issue.custom_values.detect {|v| v.custom_field_id == column.custom_field.id}

              show_value(cv)

            else

              value = issue.send(column.name)

              if value.is_a?(Date)

                format_date(value)

              elsif value.is_a?(Time)

                format_time(value)

              else

                value

              end

            end

            s.to_s

          end

          # render it off-page to find the max height used

          base_x = pdf.GetX

          base_y = pdf.GetY

          pdf.SetY(2 * page_height)

          max_height = issues_to_pdf_write_cells(pdf, col_values, col_width, row_height)

          pdf.SetXY(base_x, base_y)

          # make new page if it doesn't fit on the current one

          space_left = page_height - base_y - bottom_margin

          if max_height > space_left

            pdf.AddPage("L")

            base_x = pdf.GetX

            base_y = pdf.GetY

          end

          # write the cells on page

          pdf.RDMCell(col_id_width, row_height, issue.id.to_s, "T", 0, 'C', 1)

          issues_to_pdf_write_cells(pdf, col_values, col_width, row_height)

          issues_to_pdf_draw_borders(pdf, base_x, base_y, base_y + max_height, col_id_width, col_width)

          pdf.SetY(base_y + max_height);

        end

        if issues.size == Setting.issues_export_limit.to_i

          pdf.SetFontStyle('B',10)

          pdf.RDMCell(0, row_height, '...')

        end

        pdf.Output

      end

      # Renders MultiCells and returns the maximum height used

      def issues_to_pdf_write_cells(pdf, col_values, col_widths,

                                    row_height, head=false)

        base_y = pdf.GetY

        max_height = row_height

        col_values.each_with_index do |column, i|

          col_x = pdf.GetX

          if head == true

            pdf.RDMMultiCell(col_widths[i], row_height, column.caption, "T", 'L', 1)

          else

            pdf.RDMMultiCell(col_widths[i], row_height, column, "T", 'L', 1)

          end

          max_height = (pdf.GetY - base_y) if (pdf.GetY - base_y) > max_height

          pdf.SetXY(col_x + col_widths[i], base_y);

        end

        return max_height

      end

      # Draw lines to close the row (MultiCell border drawing in not uniform)

      def issues_to_pdf_draw_borders(pdf, top_x, top_y, lower_y,

                                     id_width, col_widths)

        col_x = top_x + id_width

        pdf.Line(col_x, top_y, col_x, lower_y)    # id right border

        col_widths.each do |width|

          col_x += width

          pdf.Line(col_x, top_y, col_x, lower_y)  # columns right border

        end

        pdf.Line(top_x, top_y, top_x, lower_y)    # left border

        pdf.Line(top_x, lower_y, col_x, lower_y)  # bottom border

      end

      # Returns a PDF string of a single issue

      def issue_to_pdf(issue)

        pdf = ITCPDF.new(current_language)

        pdf.SetTitle("#{issue.project} - ##{issue.tracker} #{issue.id}")

        pdf.alias_nb_pages

        pdf.footer_date = format_date(Date.today)

        pdf.AddPage

        pdf.SetFontStyle('B',11)

        pdf.RDMMultiCell(190,5,

             "#{issue.project} - #{issue.tracker} # #{issue.id}: #{issue.subject}")

        pdf.Ln

        y0 = pdf.GetY

        pdf.SetFontStyle('B',9)

        pdf.RDMCell(35,5, l(:field_status) + ":","LT")

        pdf.SetFontStyle('',9)

        pdf.RDMCell(60,5, issue.status.to_s,"RT")

        pdf.SetFontStyle('B',9)

        pdf.RDMCell(35,5, l(:field_priority) + ":","LT")

        pdf.SetFontStyle('',9)

        pdf.RDMCell(60,5, issue.priority.to_s,"RT")

        pdf.Ln

        pdf.SetFontStyle('B',9)

        pdf.RDMCell(35,5, l(:field_author) + ":","L")

        pdf.SetFontStyle('',9)

        pdf.RDMCell(60,5, issue.author.to_s,"R")

        pdf.SetFontStyle('B',9)

        pdf.RDMCell(35,5, l(:field_category) + ":","L")

        pdf.SetFontStyle('',9)

        pdf.RDMCell(60,5, issue.category.to_s,"R")

        pdf.Ln

        pdf.SetFontStyle('B',9)

        pdf.RDMCell(35,5, l(:field_created_on) + ":","L")

        pdf.SetFontStyle('',9)

        pdf.RDMCell(60,5, format_date(issue.created_on),"R")

        pdf.SetFontStyle('B',9)

        pdf.RDMCell(35,5, l(:field_assigned_to) + ":","L")

        pdf.SetFontStyle('',9)

        pdf.RDMCell(60,5, issue.assigned_to.to_s,"R")

        pdf.Ln

        pdf.SetFontStyle('B',9)

        pdf.RDMCell(35,5, l(:field_updated_on) + ":","LB")

        pdf.SetFontStyle('',9)

        pdf.RDMCell(60,5, format_date(issue.updated_on),"RB")

        pdf.SetFontStyle('B',9)

        pdf.RDMCell(35,5, l(:field_due_date) + ":","LB")

        pdf.SetFontStyle('',9)

        pdf.RDMCell(60,5, format_date(issue.due_date),"RB")

        pdf.Ln

        for custom_value in issue.custom_field_values

          pdf.SetFontStyle('B',9)

          pdf.RDMCell(35,5, custom_value.custom_field.name + ":","L")

          pdf.SetFontStyle('',9)

          pdf.RDMMultiCell(155,5, (show_value custom_value),"R")

        end

        pdf.SetFontStyle('B',9)

        pdf.RDMCell(35,5, l(:field_subject) + ":","LT")

        pdf.SetFontStyle('',9)

        pdf.RDMMultiCell(155,5, issue.subject,"RT")

        pdf.SetFontStyle('B',9)

        pdf.RDMCell(35,5, l(:field_description) + ":","LT")

        pdf.SetFontStyle('',9)

        pdf.RDMMultiCell(155,5, issue.description.to_s,"RT")

        pdf.Line(pdf.GetX, y0, pdf.GetX, pdf.GetY)

        pdf.Line(pdf.GetX, pdf.GetY, pdf.GetX + 190, pdf.GetY)

        pdf.Ln

        if issue.changesets.any? &&

             User.current.allowed_to?(:view_changesets, issue.project)

          pdf.SetFontStyle('B',9)

          pdf.RDMCell(190,5, l(:label_associated_revisions), "B")

          pdf.Ln

          for changeset in issue.changesets

            pdf.SetFontStyle('B',8)

            pdf.RDMCell(190,5,

              format_time(changeset.committed_on) + " - " + changeset.author.to_s)

            pdf.Ln

            unless changeset.comments.blank?

              pdf.SetFontStyle('',8)

              pdf.RDMMultiCell(190,5, changeset.comments.to_s)

            end

            pdf.Ln

          end

        end

        pdf.SetFontStyle('B',9)

        pdf.RDMCell(190,5, l(:label_history), "B")

        pdf.Ln

        for journal in issue.journals.find(

                          :all, :include => [:user, :details],

                          :order => "#{Journal.table_name}.created_on ASC")

          pdf.SetFontStyle('B',8)

          pdf.RDMCell(190,5,

             format_time(journal.created_on) + " - " + journal.user.name)

          pdf.Ln

          pdf.SetFontStyle('I',8)

          for detail in journal.details

            pdf.RDMMultiCell(190,5, "- " + show_detail(detail, true))

          end

          if journal.notes?

            pdf.Ln unless journal.details.empty?

            pdf.SetFontStyle('',8)

            pdf.RDMMultiCell(190,5, journal.notes.to_s)

          end

          pdf.Ln

        end

        if issue.attachments.any?

          pdf.SetFontStyle('B',9)

          pdf.RDMCell(190,5, l(:label_attachment_plural), "B")

          pdf.Ln

          for attachment in issue.attachments

            pdf.SetFontStyle('',8)

            pdf.RDMCell(80,5, attachment.filename)

            pdf.RDMCell(20,5, number_to_human_size(attachment.filesize),0,0,"R")

            pdf.RDMCell(25,5, format_date(attachment.created_on),0,0,"R")

            pdf.RDMCell(65,5, attachment.author.name,0,0,"R")

            pdf.Ln

          end

        end

        pdf.Output

      end

      class RDMPdfEncoding

        include Redmine::I18n

        def self.rdm_pdf_iconv(ic, txt)

          txt ||= ''

          if txt.respond_to?(:force_encoding)

            txt.force_encoding('UTF-8')

            if l(:general_pdf_encoding).upcase != 'UTF-8'

              txt = txt.encode(l(:general_pdf_encoding), :invalid => :replace,

                               :undef => :replace, :replace => '?')

            else

              txt = Redmine::CodesetUtil.replace_invalid_utf8(txt)

            end

            txt.force_encoding('ASCII-8BIT')

          else

            ic ||= Iconv.new(l(:general_pdf_encoding), 'UTF-8')

            txtar = ""

            begin

              txtar += ic.iconv(txt)

            rescue Iconv::IllegalSequence

              txtar += $!.success

              txt = '?' + $!.failed[1,$!.failed.length]

              retry

            rescue

              txtar += $!.success

            end

            txt = txtar

          end

          txt

        end

      end

    end

  end

end