Module: Redmine::Export::PDF::IssuesPdfHelper

Included in:
IssuesHelper
Defined in:
lib/redmine/export/pdf/issues_pdf_helper.rb

Instance Method Summary collapse

Instance Method Details

#calc_col_width(issues, query, table_width, pdf) ⇒ Object

calculate columns width


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# File 'lib/redmine/export/pdf/issues_pdf_helper.rb', line 404

def calc_col_width(issues, query, table_width, pdf)
  # calculate statistics
  #  by captions
  pdf.SetFontStyle('B',8)
  margins = pdf.get_margins
  col_padding = margins['cell']
  col_width_min = query.inline_columns.map {|v| pdf.get_string_width(v.caption) + col_padding}
  col_width_max = Array.new(col_width_min)
  col_width_avg = Array.new(col_width_min)
  col_min = pdf.get_string_width('OO') + col_padding * 2
  if table_width > col_min * col_width_avg.length
    table_width -= col_min * col_width_avg.length
  else
    col_min = pdf.get_string_width('O') + col_padding * 2
    if table_width > col_min * col_width_avg.length
      table_width -= col_min * col_width_avg.length
    else
      ratio = table_width / col_width_avg.inject(0, :+)
      return col_width = col_width_avg.map {|w| w * ratio}
    end
  end
  word_width_max = query.inline_columns.map {|c|
    n = 10
    c.caption.split.each {|w|
      x = pdf.get_string_width(w) + col_padding
      n = x if n < x
    }
    n
  }

  #  by properties of issues
  pdf.SetFontStyle('',8)
  k = 1
  issue_list(issues) {|issue, level|
    k += 1
    values = fetch_row_values(issue, query, level)
    values.each_with_index {|v,i|
      n = pdf.get_string_width(v) + col_padding * 2
      col_width_max[i] = n if col_width_max[i] < n
      col_width_min[i] = n if col_width_min[i] > n
      col_width_avg[i] += n
      v.split.each {|w|
        x = pdf.get_string_width(w) + col_padding
        word_width_max[i] = x if word_width_max[i] < x
      }
    }
  }
  col_width_avg.map! {|x| x / k}

  # calculate columns width
  ratio = table_width / col_width_avg.inject(0, :+)
  col_width = col_width_avg.map {|w| w * ratio}

  # correct max word width if too many columns
  ratio = table_width / word_width_max.inject(0, :+)
  word_width_max.map! {|v| v * ratio} if ratio < 1

  # correct and lock width of some columns
  done = 1
  col_fix = []
  col_width.each_with_index do |w,i|
    if w > col_width_max[i]
      col_width[i] = col_width_max[i]
      col_fix[i] = 1
      done = 0
    elsif w < word_width_max[i]
      col_width[i] = word_width_max[i]
      col_fix[i] = 1
      done = 0
    else
      col_fix[i] = 0
    end
  end

  # iterate while need to correct and lock coluns width
  while done == 0
    # calculate free & locked columns width
    done = 1
    ratio = table_width / col_width.inject(0, :+)

    # correct columns width
    col_width.each_with_index do |w,i|
      if col_fix[i] == 0
        col_width[i] = w * ratio

        # check if column width less then max word width
        if col_width[i] < word_width_max[i]
          col_width[i] = word_width_max[i]
          col_fix[i] = 1
          done = 0
        elsif col_width[i] > col_width_max[i]
          col_width[i] = col_width_max[i]
          col_fix[i] = 1
          done = 0
        end
      end
    end
  end

  ratio = table_width / col_width.inject(0, :+)
  col_width.map! {|v| v * ratio + col_min}
  col_width
end

#fetch_row_values(issue, query, level) ⇒ Object

fetch row values


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# File 'lib/redmine/export/pdf/issues_pdf_helper.rb', line 375

def fetch_row_values(issue, query, level)
  query.inline_columns.collect do |column|
    s =
      if column.is_a?(QueryCustomFieldColumn)
        cv = issue.visible_custom_field_values.detect {|v| v.custom_field_id == column.custom_field.id}
        show_value(cv, false)
      else
        value = column.value_object(issue)
        case column.name
        when :subject
          value = "  " * level + value
        when :attachments
          value = value.to_a.map {|a| a.filename}.join("\n")
        end
        if value.is_a?(Date)
          format_date(value)
        elsif value.is_a?(Time)
          format_time(value)
        elsif value.is_a?(Float)
          sprintf "%.2f", value
        else
          value
        end
      end
    s.to_s
  end
end

#get_issues_to_pdf_write_cells(pdf, col_values, col_widths, head = false) ⇒ Object

returns the maximum height of MultiCells


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# File 'lib/redmine/export/pdf/issues_pdf_helper.rb', line 527

def get_issues_to_pdf_write_cells(pdf, col_values, col_widths, head=false)
  heights = []
  col_values.each_with_index do |column, i|
    heights << pdf.get_string_height(col_widths[i], head ? column.caption : column)
  end
  return heights.max
end

#is_cjk?Boolean

Returns:

  • (Boolean)

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# File 'lib/redmine/export/pdf/issues_pdf_helper.rb', line 365

def is_cjk?
  case current_language.to_s.downcase
  when 'ja', 'zh-tw', 'zh', 'ko'
    true
  else
    false
  end
end

#issue_to_pdf(issue, assoc = {}) ⇒ Object

Returns a PDF string of a single issue


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# File 'lib/redmine/export/pdf/issues_pdf_helper.rb', line 25

def issue_to_pdf(issue, assoc={})
  pdf = ITCPDF.new(current_language)
  pdf.set_title("#{issue.project} - #{issue.tracker} ##{issue.id}")
  pdf.alias_nb_pages
  pdf.footer_date = format_date(User.current.today)
  pdf.add_page
  pdf.SetFontStyle('B',11)
  buf = "#{issue.project} - #{issue.tracker} ##{issue.id}"
  pdf.RDMMultiCell(190, 5, buf)
  pdf.SetFontStyle('',8)
  base_x = pdf.get_x
  i = 1
  issue.ancestors.visible.each do |ancestor|
    pdf.set_x(base_x + i)
    buf = "#{ancestor.tracker} # #{ancestor.id} (#{ancestor.status.to_s}): #{ancestor.subject}"
    pdf.RDMMultiCell(190 - i, 5, buf)
    i += 1 if i < 35
  end
  pdf.SetFontStyle('B',11)
  pdf.RDMMultiCell(190 - i, 5, issue.subject.to_s)
  pdf.SetFontStyle('',8)
  pdf.RDMMultiCell(190, 5, "#{format_time(issue.created_on)} - #{issue.author}")
  pdf.ln

  left = []
  left << [l(:field_status), issue.status]
  left << [l(:field_priority), issue.priority]
  left << [l(:field_assigned_to), issue.assigned_to] unless issue.disabled_core_fields.include?('assigned_to_id')
  left << [l(:field_category), issue.category] unless issue.disabled_core_fields.include?('category_id')
  left << [l(:field_fixed_version), issue.fixed_version] unless issue.disabled_core_fields.include?('fixed_version_id')

  right = []
  right << [l(:field_start_date), format_date(issue.start_date)] unless issue.disabled_core_fields.include?('start_date')
  right << [l(:field_due_date), format_date(issue.due_date)] unless issue.disabled_core_fields.include?('due_date')
  right << [l(:field_done_ratio), "#{issue.done_ratio}%"] unless issue.disabled_core_fields.include?('done_ratio')
  right << [l(:field_estimated_hours), l_hours(issue.estimated_hours)] unless issue.disabled_core_fields.include?('estimated_hours')
  right << [l(:label_spent_time), l_hours(issue.total_spent_hours)] if User.current.allowed_to?(:view_time_entries, issue.project)

  rows = left.size > right.size ? left.size : right.size
  left  << nil while left.size  < rows
  right << nil while right.size < rows

  custom_field_values = issue.visible_custom_field_values.reject {|value| value.custom_field.full_width_layout?}
  half = (custom_field_values.size / 2.0).ceil
  custom_field_values.each_with_index do |custom_value, i|
    (i < half ? left : right) << [custom_value.custom_field.name, show_value(custom_value, false)]
  end

  if pdf.get_rtl
    border_first_top = 'RT'
    border_last_top  = 'LT'
    border_first = 'R'
    border_last  = 'L'
  else
    border_first_top = 'LT'
    border_last_top  = 'RT'
    border_first = 'L'
    border_last  = 'R'
  end

  rows = left.size > right.size ? left.size : right.size
  rows.times do |i|
    heights = []
    pdf.SetFontStyle('B',9)
    item = left[i]
    heights << pdf.get_string_height(35, item ? "#{item.first}:" : "")
    item = right[i]
    heights << pdf.get_string_height(35, item ? "#{item.first}:" : "")
    pdf.SetFontStyle('',9)
    item = left[i]
    heights << pdf.get_string_height(60, item ? item.last.to_s  : "")
    item = right[i]
    heights << pdf.get_string_height(60, item ? item.last.to_s  : "")
    height = heights.max

    item = left[i]
    pdf.SetFontStyle('B',9)
    pdf.RDMMultiCell(35, height, item ? "#{item.first}:" : "", (i == 0 ? border_first_top : border_first), '', 0, 0)
    pdf.SetFontStyle('',9)
    pdf.RDMMultiCell(60, height, item ? item.last.to_s : "", (i == 0 ? border_last_top : border_last), '', 0, 0)

    item = right[i]
    pdf.SetFontStyle('B',9)
    pdf.RDMMultiCell(35, height, item ? "#{item.first}:" : "",  (i == 0 ? border_first_top : border_first), '', 0, 0)
    pdf.SetFontStyle('',9)
    pdf.RDMMultiCell(60, height, item ? item.last.to_s : "", (i == 0 ? border_last_top : border_last), '', 0, 2)

    pdf.set_x(base_x)
  end

  pdf.SetFontStyle('B',9)
  pdf.RDMCell(35+155, 5, l(:field_description), "LRT", 1)
  pdf.SetFontStyle('',9)

  # Set resize image scale
  pdf.set_image_scale(1.6)
  text =
    textilizable(
      issue, :description,
      :only_path => false,
      :edit_section_links => false,
      :headings => false,
      :inline_attachments => false
    )
  pdf.RDMwriteFormattedCell(35+155, 5, '', '', text, issue.attachments, "LRB")

  custom_field_values = issue.visible_custom_field_values.select {|value| value.custom_field.full_width_layout?}
  custom_field_values.each do |value|
    text = show_value(value, false)
    next if text.blank?

    pdf.SetFontStyle('B',9)
    pdf.RDMCell(35+155, 5, value.custom_field.name, "LRT", 1)
    pdf.SetFontStyle('',9)
    pdf.RDMwriteHTMLCell(35+155, 5, '', '', text, issue.attachments, "LRB")
  end

  unless issue.leaf?
    truncate_length = (!is_cjk? ? 90 : 65)
    pdf.SetFontStyle('B',9)
    pdf.RDMCell(35+155,5, l(:label_subtask_plural) + ":", "LTR")
    pdf.ln
    issue_list(issue.descendants.visible.sort_by(&:lft)) do |child, level|
      buf = "#{child.tracker} # #{child.id}: #{child.subject}".
              truncate(truncate_length)
      level = 10 if level >= 10
      pdf.SetFontStyle('',8)
      pdf.RDMCell(35+135,5, (level >=1 ? "  " * level : "") + buf, border_first)
      pdf.SetFontStyle('B',8)
      pdf.RDMCell(20,5, child.status.to_s, border_last)
      pdf.ln
    end
  end

  relations = issue.relations.select { |r| r.other_issue(issue).visible? }
  unless relations.empty?
    truncate_length = (!is_cjk? ? 80 : 60)
    pdf.SetFontStyle('B',9)
    pdf.RDMCell(35+155,5, l(:label_related_issues) + ":", "LTR")
    pdf.ln
    relations.each do |relation|
      buf = relation.to_s(issue) {|other|
        text = ""
        if Setting.cross_project_issue_relations?
          text += "#{relation.other_issue(issue).project} - "
        end
        text += "#{other.tracker} ##{other.id}: #{other.subject}"
        text
      }
      buf = buf.truncate(truncate_length)
      pdf.SetFontStyle('', 8)
      pdf.RDMCell(35+155-60, 5, buf, border_first)
      pdf.SetFontStyle('B',8)
      pdf.RDMCell(20,5, relation.other_issue(issue).status.to_s, "")
      pdf.RDMCell(20,5, format_date(relation.other_issue(issue).start_date), "")
      pdf.RDMCell(20,5, format_date(relation.other_issue(issue).due_date), border_last)
      pdf.ln
    end
  end
  pdf.RDMCell(190,5, "", "T")
  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)
      csstr  = "#{l(:label_revision)} #{changeset.format_identifier} - "
      csstr += format_time(changeset.committed_on) + " - " + changeset.author.to_s
      pdf.RDMCell(190, 5, csstr)
      pdf.ln
      unless changeset.comments.blank?
        pdf.SetFontStyle('',8)
        pdf.RDMwriteHTMLCell(
              190,5,'','',
              changeset.comments.to_s, issue.attachments, "")
      end
      pdf.ln
    end
  end

  if assoc[:journals].present?
    pdf.SetFontStyle('B',9)
    pdf.RDMCell(190,5, l(:label_history), "B")
    pdf.ln
    assoc[:journals].each do |journal|
      pdf.SetFontStyle('B',8)
      title = "##{journal.indice} - #{format_time(journal.created_on)} - #{journal.user}"
      title += " (#{l(:field_private_notes)})" if journal.private_notes?
      pdf.RDMCell(190,5, title)
      pdf.ln
      pdf.SetFontStyle('I',8)
      details_to_strings(journal.visible_details, true).each do |string|
        pdf.RDMMultiCell(190,5, "- " + string)
      end
      if journal.notes?
        pdf.ln unless journal.details.empty?
        pdf.SetFontStyle('',8)
        text =
          textilizable(
            journal, :notes,
            :only_path => false,
            :edit_section_links => false,
            :headings => false,
            :inline_attachments => false
          )
        pdf.RDMwriteFormattedCell(190,5,'','', text, issue.attachments, "")
      end
      pdf.ln
    end
  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

#issues_to_pdf(issues, project, query) ⇒ Object

Returns a PDF string of a list of issues


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# File 'lib/redmine/export/pdf/issues_pdf_helper.rb', line 256

def issues_to_pdf(issues, project, query)
  pdf = ITCPDF.new(current_language, "L")
  title = query.new_record? ? l(:label_issue_plural) : query.name
  title = "#{project} - #{title}" if project
  pdf.set_title(title)
  pdf.alias_nb_pages
  pdf.footer_date = format_date(User.current.today)
  pdf.set_auto_page_break(false)
  pdf.add_page("L")

  # Landscape A4 = 210 x 297 mm
  page_height   = pdf.get_page_height # 210
  page_width    = pdf.get_page_width  # 297
  left_margin   = pdf.get_original_margins['left'] # 10
  right_margin  = pdf.get_original_margins['right'] # 10
  bottom_margin = pdf.get_footer_margin
  row_height    = 4

  # column widths
  table_width = page_width - right_margin - left_margin
  col_width = []
  unless query.inline_columns.empty?
    col_width = calc_col_width(issues, query, table_width, pdf)
    table_width = col_width.inject(0, :+)
  end

  # use full width if the query has block columns (description, last_notes or full width custom fieds)
  if table_width > 0 && query.block_columns.any?
    col_width = col_width.map {|w| w * (page_width - right_margin - left_margin) / table_width}
    table_width = col_width.inject(0, :+)
  end

  # title
  pdf.SetFontStyle('B',11)
  pdf.RDMCell(190, 8, title)
  pdf.ln

  # totals
  totals = query.totals.map {|column, total| "#{column.caption}: #{total}"}
  if totals.present?
    pdf.SetFontStyle('B',10)
    pdf.RDMCell(table_width, 6, totals.join("  "), 0, 1, 'R')
  end

  totals_by_group = query.totals_by_group
  render_table_header(pdf, query, col_width, row_height, table_width)
  previous_group = false
  result_count_by_group = query.result_count_by_group

  issue_list(issues) do |issue, level|
    if query.grouped? &&
         (group = query.group_by_column.group_value(issue)) != previous_group
      pdf.SetFontStyle('B',10)
      group_label = group.blank? ? +'None' : group.to_s.dup
      group_label << " (#{result_count_by_group[group]})"
      pdf.bookmark group_label, 0, -1
      pdf.RDMCell(table_width, row_height * 2, group_label, 'LR', 1, 'L')
      pdf.SetFontStyle('',8)

      totals = totals_by_group.map {|column, total| "#{column.caption}: #{total[group]}"}.join("  ")
      if totals.present?
        pdf.RDMCell(table_width, row_height, totals, 'LR', 1, 'L')
      end
      previous_group = group
    end

    # fetch row values
    col_values = fetch_row_values(issue, query, level)

    # make new page if it doesn't fit on the current one
    base_y     = pdf.get_y
    max_height = get_issues_to_pdf_write_cells(pdf, col_values, col_width)
    space_left = page_height - base_y - bottom_margin
    if max_height > space_left
      pdf.add_page("L")
      render_table_header(pdf, query, col_width, row_height, table_width)
      base_y = pdf.get_y
    end

    # write the cells on page
    issues_to_pdf_write_cells(pdf, col_values, col_width, max_height)
    pdf.set_y(base_y + max_height)

    query.block_columns.each do |column|
    if column.is_a?(QueryCustomFieldColumn)
      cv = issue.visible_custom_field_values.detect {|v| v.custom_field_id == column.custom_field.id}
      text = show_value(cv, false)
    else
      text = issue.send(column.name)
    end
    next if text.blank?

    pdf.set_x(10)
    pdf.set_auto_page_break(true, bottom_margin)
    pdf.SetFontStyle('B',9)
    pdf.RDMCell(0, 5, column.caption, "LRT", 1)
    pdf.SetFontStyle('',9)
    pdf.RDMwriteHTMLCell(0, 5, '', '', text, [], "LRB")
    pdf.set_auto_page_break(false)
    end
  end

  if issues.size == Setting.issues_export_limit.to_i
    pdf.SetFontStyle('B',10)
    pdf.RDMCell(0, row_height, '...')
  end
  pdf.output
end

#issues_to_pdf_draw_borders(pdf, top_x, top_y, lower_y, col_id_width, col_widths, rtl = false) ⇒ Object

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

parameter "col_id_width" is not used. it is kept for compatibility.

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# File 'lib/redmine/export/pdf/issues_pdf_helper.rb', line 545

def issues_to_pdf_draw_borders(pdf, top_x, top_y, lower_y,
                               col_id_width, col_widths, rtl=false)
  col_x = top_x
  pdf.line(col_x, top_y, col_x, lower_y)    # id right border
  col_widths.each do |width|
    if rtl
      col_x -= width
    else
      col_x += width
    end
    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

#issues_to_pdf_write_cells(pdf, col_values, col_widths, row_height, head = false) ⇒ Object

Renders MultiCells and returns the maximum height used


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# File 'lib/redmine/export/pdf/issues_pdf_helper.rb', line 536

def issues_to_pdf_write_cells(pdf, col_values, col_widths, row_height, head=false)
  col_values.each_with_index do |column, i|
    pdf.RDMMultiCell(col_widths[i], row_height, head ? column.caption : column.strip, 1, '', 1, 0)
  end
end

#render_table_header(pdf, query, col_width, row_height, table_width) ⇒ Object


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# File 'lib/redmine/export/pdf/issues_pdf_helper.rb', line 508

def render_table_header(pdf, query, col_width, row_height, table_width)
  # headers
  pdf.SetFontStyle('B',8)
  pdf.set_fill_color(230, 230, 230)

  base_x     = pdf.get_x
  base_y     = pdf.get_y
  max_height = get_issues_to_pdf_write_cells(pdf, query.inline_columns, col_width, true)

  # write the cells on page
  issues_to_pdf_write_cells(pdf, query.inline_columns, col_width, max_height, true)
  pdf.set_xy(base_x, base_y + max_height)

  # rows
  pdf.SetFontStyle('',8)
  pdf.set_fill_color(255, 255, 255)
end