;------------------------------------------------------------
;------------------------------------------------------------
;------------------------------------------------------------
;+
; NAME:
;	printps
;
; PURPOSE: postscript visualisation/archiving/printing
;
; CATEGORY: for the postscripts
;
; CALLING SEQUENCE:
;	imprime [,psfilename]
;      
; INPUTS:
;  
;	psfilename: the name of the postscript file we want to
;           visualize and/or print and/or archive. It can also refer
;           to a gzipped postscript file. If needed, this name will
;           be completed by .ps and/or .gz 
;
; KEYWORD PARAMETERS: None
;
; COMMON BLOCKS: cm_4ps
;
; SIDE EFFECTS: 

; - archiving possibilities -
; 
; if archive_ps (common variable of cm_4ps) ne 0 then the postscript
; can be saved for archiving if it is printed or if the button
; "archive ps" is pressed. if it is printed and archive_ps = 1 then
; the archiving is done automatically whereas we ask if the postscript
; file must be archived or not.
; If the postcript name is "idl.ps" (default name) then this name will
; be changed to number.ps (number automatically found to be 1 larger
; that any of the existing ps file).
;
; RESTRICTIONS:
;
; 1) this is working only with unix/linux/osX machines
;
; 2) definition of the printing command
;
; the printing command is defined by the common variable "print_command"
; in cm_4ps. This command must be defind/build in a way that it the
; instruction:
;     print_command[i]+printer_machine_names[i]+' '+file.ps
; or
;     print_command+printer_machine_names[i]+' '+file.ps
; is working. default definition is '\lpr -P'
;
; EXAMPLE: IDL> printps
;
; MODIFICATION HISTORY: Sebastien Masson (smasson@lodyc.jussieu.fr)
;			21/12/98
;                       25/8/19999 utilisation des widgets
;                       8/9/1999 utilisation de cw_bgroup
; June 2005: Sebastien Masson: cleaning, english version with new commons 
;-
;------------------------------------------------------------
;------------------------------------------------------------
;------------------------------------------------------------
PRO printps_event, event
;------------------------------------------------------------
; include commons
@cm_4ps
  IF NOT keyword_set(key_forgetold) THEN BEGIN
@updatenew
  ENDIF
;------------------------------------------------------------
; What kind of event do we have ?
  widget_control, event.id, get_uvalue = uval
; case on the event
  CASE uval.name OF
;------------------------------------------------------------
; visualize case : postscript visualization 
;------------------------------------------------------------
    'visualize':BEGIN 
; paper orientation
      if key_portrait EQ 1 then ori = 'portrait' ELSE ori = 'seascape'
; paper format
      CASE round(10*(total(page_size))) OF
        round(10*(83.9611 + 118.816)) : papsize = 'a0'
        round(10*(59.4078 + 83.9611)) : papsize = 'a1'
        round(10*(41.9806 + 59.4078)) : papsize = 'a2'
        round(10*(29.7039 + 41.9806)) : papsize = 'a3'
        round(10*(20.9903 + 29.7039)) : papsize = 'a4'
        round(10*(14.8519 + 20.9903)) : papsize = 'a5'
        round(10*(10.4775 + 14.8519)) : papsize = 'a6'
        round(10*(7.40833 + 10.4775)) : papsize = 'a7'
        round(10*(5.22111 + 7.40833)) : papsize = 'a8'
        round(10*(3.70417 + 5.22111)) : papsize = 'a9'
        round(10*(2.61056 + 3.70417)) : papsize = 'a10'
        round(10*(100.048 + 141.393)) : papsize = 'b0'
        round(10*(70.6967 + 100.048)) : papsize = 'b1'
        round(10*(50.0239 + 70.6967)) : papsize = 'b2'
        round(10*(35.3483 + 50.0239)) : papsize = 'b3'
        round(10*(25.0119 + 35.3483)) : papsize = 'b4'
        round(10*(17.6742 + 25.0119)) : papsize = 'b5'
        round(10*(22.86 + 30.48)) : papsize = 'archA'
        round(10*(30.48 + 45.72)) : papsize = 'archB'
        round(10*(45.72 + 60.96)) : papsize = 'archC'
        round(10*(60.96 + 91.44)) : papsize = 'archD'
        round(10*(91.44 + 121.92)) : papsize = 'archE'
        round(10*(21.59 + 33.02)) : papsize = 'flsa'
        round(10*(21.59 + 33.02)) : papsize = 'flse'
        round(10*(13.97 + 21.59)) : papsize = 'halfletter'
        round(10*(19.05 + 25.4)) : papsize = 'note'
        round(10*(21.59 + 27.94)) : papsize = 'letter'
        round(10*(21.59 + 35.56)) : papsize = 'legal'
        round(10*(27.94 + 43.18)) : papsize = '11x17'
        round(10*(43.18 + 27.94)) : papsize = 'ledger'
        ELSE:papsize = 'a4'
      ENDCASE    
; call the viewers
      CASE event.value OF
        'Ghostview':spawn, '\ghostview -'+papsize+' -quiet -'+ori+' '+uval.nameps
        'Ghostscript':spawn, '\gs -sPAPERSIZE='+papsize+' -q '+uval.nameps
        'Kghostview':spawn, '\kghostview '+uval.nameps
      ENDCASE
      return 
    END
;------------------------------------------------------------
; print case: print and archive the file if needed
;------------------------------------------------------------
    'print':BEGIN 
; printer selection
      printer = printer_machine_names[event.value]
; print
      CASE n_elements(print_command) OF
        0:ptcmd = '\lpr -P'
        1:ptcmd = print_command[0]
        n_elements(printer_machine_names):ptcmd = print_command[event.value]
        ELSE:BEGIN
          ng = report('bad definition of print_command, common variable of cm_4ps. !C we did not print the postscript file', /simple)
          return
        END
      ENDCASE
      spawn, ptcmd + printer + ' ' + uval.nameps
; ; printing informations...
;       spawn, '\lpq -P'+imprimante+' -l', info
; ; display them
;       xdisplayfile, 'nothing', text = info $
;                     , title = 'Printing Info '+file_basename(uval.nameps) $
;                     , height = n_elements(info) <  24
    END
    ELSE:
  ENDCASE 
; we destroy the widget
  widget_control, event.top, /destroy 
; if the file was originaly gzipped, then we re-gzip it and exit
  IF uval.gzip THEN BEGIN
    spawn, '\gzip ' + uval.nameps
    return
  ENDIF
;------------------------------------------------------------
; archiving...
;------------------------------------------------------------
  IF (uval.name EQ 'print' OR uval.name EQ 'archive') $
    AND keyword_set(archive_ps) THEN BEGIN
    IF archive_ps NE 1 AND uval.name EQ 'print' then begin
      wesave = report('Shall we archive the postcript?', /defaul_no, /question)
      IF wesave EQ 0 THEN RETURN
    ENDIF
; if the name of the postscript is idl.ps then we change it
    IF file_basename(uval.nameps) EQ 'idl.ps' then BEGIN
; get the name of all the *.ps or *.ps.gz files available in psdir
       allps = file_search(psdir+'*[.ps|.ps.gz|.pdf]', /test_regular, /nosort)
       allps = file_basename(file_basename(allps,'.gz'),'.ps')
       allps = file_basename(allps,'.pdf')
; find which of these names corresponds to numbers...
; get ascii codes of the names
       testnumb = byte(allps)
; longest name
       maxstrlen = (size(testnumb, /dimensions))[0]
; ascii codes can be 0 or between byte('0') and byte('9')
       testnumb = testnumb EQ 0 OR $
                  (testnumb GE (byte('0'))[0] AND testnumb LE (byte('9'))[0])
       testnumb = where(total(testnumb, 1) EQ maxstrlen, count)
       IF count NE 0 THEN BEGIN
; get the largest number
         psnumber = fix(allps[testnumb])
         psnumber = (psnumber[reverse(sort(psnumber))])[0] + 1
       ENDIF ELSE psnumber = 0
; update uval.nameps
      dirname = file_dirname(uval.nameps, /mark_directory)
      uval.nameps = dirname+strtrim(psnumber, 2)+'.ps'
; change the name of the file
      file_move, dirname+'idl.ps', uval.nameps
    ENDIF
    spawn, '\gzip ' + uval.nameps
  ENDIF
;  
  return
end
;------------------------------------------------------------
;------------------------------------------------------------
;------------------------------------------------------------
;------------------------------------------------------------
pro printps, psfilename
;
; this is working only with unix/linux/osX machines
  thisOS = strupcase(strmid(!version.os_family, 0, 3))
  CASE thisOS OF 
    'MAC':return
    'WIN':return
    ELSE:
  ENDCASE
;------------------------------------------------------------
; include commons
@cm_4ps
  IF NOT keyword_set(key_forgetold) THEN BEGIN
@updatenew
  ENDIF
;------------------------------------------------------------
; we get the name of the latest created postscript.
;------------------------------------------------------------
  psdir = isadirectory(psdir, title = 'Select psdir')
  CASE N_PARAMS() OF
    0: BEGIN
      nameps = file_search(psdir+'*.ps', /test_regular, /nosort)
      IF nameps[0] EQ '' THEN BEGIN
        ras = report('no postsrcipt file (ending with .ps) found in : ' + psdir)
        RETURN
      ENDIF
      dates = (file_info(nameps)).mtime
      lastdate = (reverse(sort(temporary(dates))))[0]
      nameps = nameps[lastdate]
    END
    1: nameps = psfilename
    ELSE: BEGIN 
      ras = report('printps accept only one element: psfilename')
      RETURN
    END 
  ENDCASE       
;------------------------------------------------------------
; we check if the file is exist in psdir. if necessary we complete
; its name with .ps and/or ,gz
;------------------------------------------------------------
  nameps = find(nameps+'{.ps,}{.gz,}', iodir = psdir, /nopro)
  IF nameps EQ 'NOT FOUND' THEN BEGIN 
    ng = report('file '+nameps+'[.ps][.gz] does not exist ')
    return
  ENDIF 
  gzipped = strpos(nameps, '.gz')
; if the file is gzipped we call gunzip et change its name
  IF gzipped NE -1 THEN BEGIN
    spawn, '\gunzip ' + nameps
    nameps = strmid(nameps, 0, gzipped)
  endif
;------------------------------------------------------------
; build the widget
;------------------------------------------------------------
  base = widget_base(/row, title = 'Postscript file: ' $
                     + file_basename(nameps))
; ps viewers grouped button
  psviewers = ['no psviewers found']
  IF file_which(getenv('PATH'), 'ghostview') NE '' THEN $
    psviewers = [psviewers, 'Ghostview'] 
  IF file_which(getenv('PATH'), 'gs') NE '' THEN $
    psviewers = [psviewers, 'Ghostscript'] 
  IF file_which(getenv('PATH'), 'kghostview') NE '' THEN $
    psviewers = [psviewers, 'Kghostview'] 
; if at least one of viewer was found we define these buttons
  IF n_elements(psviewers) GT 1 THEN BEGIN 
    psviewers = psviewers[1:*]
    notused = cw_bgroup(base, psviewers, /frame, label_top = 'Visualize' $
                        , uvalue = {name:'visualize', nameps:nameps} $
                        , /column, /return_name)
  ENDIF 
; printers list grouped buttons
; are the common variables printer_human_names and printer_human_names
; defined in a proper way?
  CASE 1 OF
    n_elements(printer_human_names) eq 0: $
      noting = report('the cm_4ps variable printer_human_names is not defined... !CWe could not propose any printer', /simple)
    n_elements(printer_human_names) NE n_elements(printer_machine_names): $
      noting = report('the cm_4ps variables printer_human_names and !Cprinter_machine_names do not have the same number of arguments... !CWe could not propose any printer', /simple)
    printer_human_names[0] EQ '':
    ELSE:notused = $
      cw_bgroup(base, printer_human_names, /frame, /column $
                , label_top = 'Select printer' $
                , uvalue = {name:'print', nameps:nameps, gzip:gzipped NE -1})
  ENDCASE
; 'archive ps' button, can be created only if archive_ps ne 0
  IF keyword_set(archive_ps) THEN $
    notused = widget_button(base, value = 'archive ps' $
                            , uvalue = {name:'archive', nameps:nameps $
                                        , gzip:gzipped NE -1})
; quit button
  notused = widget_button(base, value = 'quit' $
                          , uvalue = {name:'quit', nameps:nameps $
                                      , gzip:gzipped NE -1})
;------------------------------------------------------------
  widget_control, base, /realize
;------------------------------------------------------------
  xmanager, 'printps', base, /no_block
;------------------------------------------------------------
  return
end