Index: lib/redmine/export/pdf.rb
===================================================================
--- lib/redmine/export/pdf.rb	(リビジョン 7782)
+++ lib/redmine/export/pdf.rb	(作業コピー)
@@ -286,9 +286,19 @@
         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}")
+        buf = "#{issue.project} - #{issue.tracker} # #{issue.id}"
+        pdf.RDMMultiCell(190, 5, buf)
         pdf.Ln
+        pdf.SetFontStyle('',8)
+        base_x = pdf.GetX
+        i = 1
+        issue.ancestors.each do |ancestor|
+          pdf.SetX(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.Ln
 
         pdf.SetFontStyle('B',9)
         pdf.RDMCell(35,5, l(:field_status) + ":","LT")
@@ -351,8 +361,53 @@
         pdf.RDMwriteHTMLCell(35+155, 5, 0, 0,
             Redmine::WikiFormatting.to_html(
               Setting.text_formatting, issue.description.to_s),"LRB")
+
+        # for CJK
+        truncate_length = ( l(:general_pdf_encoding).upcase == "UTF-8" ? 80 : 60 )
+
+        pdf.SetFontStyle('B',9)
+        pdf.RDMCell(35+155,5, l(:label_subtask_plural) + ":", "LTR")
         pdf.Ln
+        issue_list(issue.descendants.sort_by(&:lft)) do |child, level|
+          buf = truncate("#{child.tracker} # #{child.id}: #{child.subject}",
+                         :length => truncate_length)
+          level = 10 if level >= 10
+          pdf.SetFontStyle('',8)
+          pdf.RDMCell(35+135,5, (level >=1 ? "  " * level : "") + buf, "L")
+          pdf.SetFontStyle('B',8)
+          pdf.RDMCell(20,5, child.status.to_s, "R")
+          pdf.Ln
+        end
+        pdf.SetFontStyle('B',9)
+        pdf.RDMCell(35+155,5, l(:label_related_issues) + ":", "LTR")
+        pdf.Ln
 
+        # for CJK
+        truncate_length = ( l(:general_pdf_encoding).upcase == "UTF-8" ? 80 : 60 )
+
+        issue.relations.select { |r| r.other_issue(issue).visible? }.each do |relation|
+          buf = ""
+          buf += "#{l(relation.label_for(issue))} "
+          if relation.delay && relation.delay != 0
+            buf += "(#{l('datetime.distance_in_words.x_days', :count => relation.delay)}) "
+          end
+          if Setting.cross_project_issue_relations?
+            buf += "#{relation.other_issue(issue).project} - "
+          end
+          buf += "#{relation.other_issue(issue).tracker}" +
+                 " # #{relation.other_issue(issue).id}: #{relation.other_issue(issue).subject}"
+          buf = truncate(buf, :length => truncate_length)
+          pdf.SetFontStyle('', 8)
+          pdf.RDMCell(35+155-50,5, buf, "L")
+          pdf.SetFontStyle('B',8)
+          pdf.RDMCell(10,5, 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), "R")
+          pdf.Ln
+        end
+        pdf.RDMCell(190,5, "", "T")
+        pdf.Ln
+
         if issue.changesets.any? &&
              User.current.allowed_to?(:view_changesets, issue.project)
           pdf.SetFontStyle('B',9)