[RFC] and [patch] - support to define header /footer lines

[Uwe Stöhr]

It a long-standing known issue LyX misses a proper way to define custom header/footer lines while such lines are necessary for many documents. After helping a colleague to define a strange header line (which costs me half an hour), I created a new module that provides commands to define those lines. With this module you can

- use 6 different commands (left, center, right for header and footer)

- use an optional argument to define the output on even pages



What do you think? Can this go in or are there better ways to define 
header/footer lines?
(This module can also go to branch if accepted.)

regards Uwe

#\DeclareLyXModule[fancyhdr.sty]{Custom Header/Footerlines}
#DescriptionBegin
#Adds 6 commands to be able to define header and footer lines
#DescriptionEnd

Format 28

Style "Left Header"
  Category              FrontMatter
  Margin                First_Dynamic
  LatexType             command
  LabelType             Static
  LabelSep              xx
  LatexName             lhead
  LabelString           "Left Header:"
  OptionalArgs          1
  KeepEmpty             1
  ParSkip               0
  TopSep                0
  BottomSep             0
  ParSep                0
  LabelFont
          Color         Green
  EndFont
End

Style "Center Header"
  CopyStyle             "Left Header"
  LatexName             chead
  LabelString           "Center Header:"
End


Style "Right Header"
  CopyStyle             "Left Header"
  LatexName             rhead
  LabelString           "Right Header:"
End


Style "Left Footer"
  CopyStyle             "Left Header"
  LatexName             lfoot
  LabelString           "Left Footer:"
End


Style "Center Footer"
  CopyStyle             "Left Header"
  LatexName             cfoot
  LabelString           "Center Footer:"
End


Style "Right Footer"
  CopyStyle             "Left Header"
  LatexName             rfoot
  LabelString           "Right Footer:"
End

- define headers/footers "the LyX way": e.g. inserting logo images, equations, tables, boxes, create multiple-line headers/footers, use the text style dialog for the characters,... I tested the attached module with many files and it works well as far as I can see. Attached is also an example LyX file.

TestFancy.lyx
Description: application/lyx