source: trunk/ToBeReviewed/WIDGET/AUTOUR_de_XXX/xcreateanim.pro @ 69

pro xcreateanim_event, event 
@common
; on recupere les aguments contenus ds le widget
   if tag_names(event, /structure_name) NE 'WIDGET_BUTTON' then return
   widget_control, event.id, get_uvalue = uval
   if n_elements(uval) EQ 0 then return
   if uval EQ 'cancel' then begin
      widget_control, event.top, /destroy
      return
   ENDIF
; on va ecrire l''animation!
;
   widget_control, event.top, get_uvalue = local_uvalue
   widget_control, local_uvalue.parent, get_uvalue = top_uvalue
;
   calendar = (*(extractatt(top_uvalue, 'fileparameters'))[local_uvalue.indexfile]).time_counter
   key_caltype = (*(extractatt(top_uvalue, 'fileparameters'))[local_uvalue.indexfile]).caltype
;
   widget_control, widget_info(event.top, find_by_uname = 'Filename') $
    , get_value = nomfic & nomfic = nomfic[0]
;
   widget_control, widget_info(event.top, find_by_uname = 'directorie') $
    , get_value = animdir & animdir = animdir[0]
;
   widget_control, widget_info(event.top, find_by_uname = 'debut') $
    , get_value = vdate1
   index1 = where(calendar eq date2jul(vdate1)) & index1 = index1[0] 
   if index1 EQ -1 then return
;
   widget_control, widget_info(event.handler, find_by_uname = 'fin') $
    , get_value = vdate2
   index2 = where(calendar eq date2jul(vdate2)) & index2 = index2[0] 
   if index2 EQ -1 OR index2 LE index1 then return
; on detruit le widget avant de creer le fichier .ps
   widget_control, event.top, /destroy 
; test pour savoir quel type des calendrier on a
   caldat, calendar, m, d
   if total(d EQ 15) EQ n_elements(d) then mensuel = 1 ELSE mensuel = 0
   if total(d EQ 1) EQ n_elements(d) AND total(m EQ 6) EQ n_elements(m) $
    then annuel = 1 ELSE annuel = 0
;
; creation de la routine qui nous serviera pour faire le dessin
;
; on recupere la liste des instructions
   globalcommand = extractatt(top_uvalue, 'globalcommand')
; on complete par le premiere et les dernieres lignes du programme
   createpro, globalcommand, filename = myuniquetmpdir + 'xxx2ps.pro' $
              , KWDLIST = ', NOERASE = noerase, POSTSCRIPT = postscript, DATE1IN = date1in, DATE2IN = date2in'
;
;--------creation du fichier----------
;
;  recupere le nombre d'octets surlequel on code la palette
   device, get_visual_depth = depth
; taille de l''image (en nombre de pixel:
   xsize = !d.x_size
   ysize = !d.y_size
;
; on verifie que le nom du fichier termine bien par .gif
   if strpos(nomfic, '.gif') EQ -1 then nomfic = nomfic+'.gif'

   current_window = !d.window
   window, /free, /pixmap, xsize=xsize, ysize=ysize


; indication du numero de l''image que l''on est en train de creer
   base = widget_base()
   sliderid = widget_slider(base, minimum = 1, maximum = index2-index1+1, value = 1 $
                            , title = 'image number: ')
   widget_control,base,/realize
;
; commencement du fichier gif. ecriture d''une image vide 
   date = jul2date(calendar[index1])
   xxx2ps, /noerase, date1in = date, date2in = date
;
;
   image = tvrd(true = depth GT 8)
;- If an 8-bit image was read, reduce the number of colors
   if depth le 8 then begin
      tvlct, red, green, blue, /get
      reduce_colors, image, index
      red = red[index]
      green = green[index]
      blue = blue[index]
   endif            
;
   if depth gt 8 then $
;- Convert 24-bit image to 8-bit
   image = color_quan(image, 1, red, green, blue, colors=256, get_translation = translation, /map_all)
;
;
   write_gif,animdir+nomfic, image, red, green, blue, /multiple
   wdelete, !d.window
;
; boucle de creation et d''ecriture ds le fichier.
;
   for ind = index1+1, index2 do BEGIN
;
      widget_control, sliderid, set_value = ind-index1+1 ; on bouge le slider
;
      window, /free, /pixmap, xsize=xsize, ysize=ysize
      date = jul2date(calendar[ind])
      xxx2ps, /noerase, date1 = date, date2 = date
;      
      image = tvrd(true = depth GT 8)
;
      if depth gt 8 then $
      image = color_quan(image, 1, aaa, bbb, ccc, colors=256, translation = translation) ;
;
      write_gif,animdir+nomfic,image,red, green, blue, /multiple
      wdelete, !d.window
   ENDFOR
; on met une derniere image blanche
      window, /free, /pixmap, xsize=xsize, ysize=ysize
      reinitplt
      plot,  [0],  [0], /nodata
      image = tvrd(true = depth GT 8)
;
      if depth gt 8 then $
      image = color_quan(image, 1, aaa, bbb, ccc, colors=256, translation = translation) ;
;
      write_gif,animdir+nomfic,image,red, green, blue, /multiple
      wdelete, !d.window
; fermeture du fichier
   write_gif,animdir+nomfic,/close 
   widget_control, base, /destroy 
; rebascule en mode "normal"
   thisOS = strupcase(strmid(!version.os_family, 0, 3))
;
   wset, current_window

; si on est sous x on essaie de lancer xanim...

   if thisOS NE 'MAC' AND thisOS NE 'WIN' then begin
      spawn, 'which xanim',result
      if strpos(result[0],'xanim') EQ strlen(result[0])-5 then spawn, 'xanim '+animdir+nomfic+' &'
   endif
;
   
   return
end
;----------------------------------------------------------------
PRO xcreateanim, parent
@common
;
   widget_control, parent, get_uvalue = top_uvalue
;
; on va s''assurer que toutes les procedures de sont pas pltt
;
   procedures = extractatt(top_uvalue, 'nameprocedures')
   if total(procedures EQ 'pltt') NE 0 then begin
      nothing = report('Certains des plots ont un axe se rapportant au temps. !C Animation impossible!', /error)
      return
   ENDIF
;
; on va s''assurer que toutes les figures ont le meme calendrier 
;
   filelist = extractatt(top_uvalue,  'filelist')
   filenames = (extractatt(top_uvalue,  'varinfo'))[0, *]
   filenames = reform(filenames)
   filenames = filenames[uniq(filenames, sort(filenames))]
   if strtrim(filenames[0], 1) EQ '' then filenames = filenames[1:n_elements(filenames)-1]
   indexfile = (where(filelist EQ filenames[0]))[0]
   calendar = (*(extractatt(top_uvalue, 'fileparameters'))[indexfile]).time_counter  
   if n_elements(filenames) GT 1 then begin
      for i = 1, n_elements(filenames)-1 do begin
         indexfilebis = (where(filelist EQ filenames[i]))[0]
         calendarbis = (*(extractatt(top_uvalue, 'fileparameters'))[indexfilebis]).time_counter
         if n_elements(calendarbis) NE n_elements(calendar)  then begin
            nothing = report('Les diffrents plots n''utilisent pas le meme calendrier. !C Animation impossible!', /error)
            return
         ENDIF
         if total(calendar NE calendarbis) NE 0 then begin
            nothing = report('Les diffrents plots n''utilisent pas le meme calendrier. !C Animation impossible!', /error)
            return
         endif
      endfor
   endif
;
; c''est possible de faire une animation  
;
   base = widget_base(/column, title = 'animation creation', uvalue = {parent:parent, indexfile:indexfile})   
   rien = widget_label(base, value = 'animation name')
   rien = widget_text(base,value='anim_idl.gif', uname='Filename', /editable)
   rien = widget_label(base, value = 'animation directory')
   if n_elements(animdir) EQ 0 then cd, current = animdir
   rien = widget_text(base,value=animdir, uname='directorie', /editable)
   rien = widget_label(base, value = 'starting date')
   rien = cw_calendar(base, calendar, uname = 'debut', uvalue = {name:'calendar'}, /frame)
   rien = widget_label(base, value = 'ending date')
   rien = cw_calendar(base, calendar, calendar[n_elements(calendar)-1] $
                      , uname = 'fin', uvalue = {name:'calendar'}, /frame)
   rien = widget_button(base,value='OK', uvalue = 'ok')
   rien = widget_button(base,value='Cancel', uvalue = 'cancel')
;
   widget_control,base,/realize
   xmanager,'xcreateanim', base, /no_block
   
   return
end