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#!/usr/bin/env ruby
#
#  Tk::Img demo
#
#    --  This script is based on demo.tcl of Tcl/Tk's 'Img' extention. 
#        Image data in this script is those of demo.tcl.
#        Please read 'license_terms_of_Img_extension' file.
#
require 'tk'
require 'tkextlib/tkimg'

#
# Make the Image format available.
#
class TkImg_demo
  def initialize
    img_version = Tk::Img.package_version

    @typeFrame = Hash.new
    @imgPriv = Hash.new

    root = TkRoot.new(:title=>'Tests for available image formats')

    root.winfo_children.each{|w| w.destroy}
    TkImage.names{|img| img.delete}

    f = TkFrame.new
    TkButton.new(f, :text=>'Dismiss', :command=>proc{exit}).pack(:side=>:left)
    f.pack(:side=>:top, :expand=>:y, :fill=>:both)

    TkMessage.new(:aspect=>900, :text=>format('This page shows the available image formats of the Img extension (Img version %s, using Tcl/Tk %s)', img_version, Tk::TK_PATCHLEVEL)).pack(:side=>:top, :expand=>:y, :fill=>:both)
  end

##############################

  def update_animated_gif(w, method, num)
    return unless @imgPriv[w]

    if @imgPriv[w][:args]
      im = TkPhotoImage.new
      im.copy(@imgPriv[w][num])
      num += 1
      begin
        im.configure(@imgPriv[w][:args].merge(:format=>[:gif, {:index=>num}]))
        im.configure(:data=>'', :file=>'') #free storage
        @imgPriv[w][num] = im
      rescue
        @imgPriv[w].delete(:args)
        if num > 1
          num = 0
          im = @imgPriv[w][num]
        else
          # this is not an animated GIF; just stop
          @imgPriv[w].delete(0)
          return
        end
      end
    else
      num += 1
      num = 0 unless @imgPriv[w][num]
      im = @imgPriv[w][num]
    end
    begin
      w.__send__(method, im)
      Tk.update_idletasks
      Tk.after(20, proc{update_animated_gif(w, method, num)})
    rescue
      @imgPriv[w].delete(:args)
      @imgPriv[w].each{|im|
        @im.delete
        @imgPriv.delete(im)
      }
    end
  end

  def show_animated_gif(keys)
    w = TkLabel.new
    begin
      im = TkPhotoImage.new(keys.merge(:format=>[:gif, {:index=>0}]))
      im.configure(:data=>'', :file=>'', :format=>'') #free storage
      w.image(im)
      @imgPriv[w] ||= Hash.new
      @imgPriv[w][0] = im
      @imgPriv[w][:args] = keys
      Tk.update_idletasks
      Tk.after(20, proc{update_animated_gif(w, :image, 0)})
    rescue => e
      w.configure(:text=>"error displaying animated gif:\n#{e.message}", 
                  :image=>'', :relief=>:ridge)
    end
    w.pack
  end

  def show_image(fmt, type, data)
    fmt = fmt.to_s.capitalize
    unless @typeFrame[fmt]
      @typeFrame[fmt] = TkFrame.new.pack(:side=>:top, :expand=>true, :fill=>:x)
      TkLabel.new(@typeFrame[fmt], :text=>"#{fmt} :  ").pack(:side=>:left)
    end
    begin
      f = TkFrame.new(@typeFrame[fmt], 
                      :borderwidth=>2, :relief=>:ridge).pack(:side=>:left)
      im = TkPhotoImage.new(:data=>data)
      im['data'] = ''
      TkLabel.new(f, :image=>im).pack
      TkLabel.new(f, :text=>type, :borderwidth=>0, :pady=>0, :padx=>2, 
                  :font=>'Helvetica 8').pack
    rescue => e
      TkMessage.new(f, :text=>"error displaying #{type} image: #{e.message}", 
                    :aspect=>250).pack
    end
    Tk.update
  end

end

##############

demo = TkImg_demo.new

##############

demo.show_animated_gif(:data=><<'ENDofIMG')
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AP8ALCYAAAAXAgQAAgP+CAHaHQtKKGioV+itRx/gQIBESRTnWRRGexhHLM90bd9127Jrao7A
kMfDKVommMnisYwwHM+odEqtWq/YrHbL7Xq/YIaTCVEoj5YiZ8gmiX6l1UrnguHu+DvdIEeh
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kGG3uLm6u7y9tmO1iRKuGZeYmUDJJn18OqLPoKQ9fyZuga2Er4fCioqRTVFlZWTcxJVFQx9u
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g3V3eC98oaIwfi07KCkmQIQfH4eUsBdLa4tnUma4ubq7vL2+v1mPUGiKE7GVh4V0Pz53pjmj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=
ENDofIMG

demo.show_image('bmp', '1-bit', <<'ENDofIMG')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ENDofIMG

demo.show_image('bmp', '4-bit', <<'ENDofIMG')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}
ENDofIMG

if false
demo.show_image('bmp', '4-bit-RLE', <<'ENDofIMG')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ENDofIMG
end

demo.show_image('bmp', '8-bit', <<'ENDofIMG')
Qk0CCAAAAAAAAPoAAAAoAAAAIgAAADIAAAABAAgAAAAAAAgHAABtCwAAbQsAADEAAAAxAAAA
////AMz//wAA//8AzMz/AJnM/wAAzP8AmZn/AGaZ/wAAmf8AZmb/ADNm/wAzM/8A/8zMAMzM
zACZmcwAZpnMAACZzABmZswAM2bMAABmzAAzM8wAADPMAAAAzAD/zJkAzMyZAMyZmQCZmZkA
ZmaZAGYzmQAzM5kAzJlmAJlmZgBmZmYAZjNmADMzZgDMmTMAmWYzAJkzMwBmMzMAmWYAAJkz
AAAAAN0A7u7uAN3d3QC7u7sAqqqqAIiIiAB3d3cAVVVVAAARDgYDKgAAAAAAAAAAAAAAAAAA
AAAAAAAAAAAAAAAAAAAAAAAVFRUVFRUVFRUVFBQUFBQUFRUVFRUVFRUVFRUVFRUVFQAAAAAV
FRUVFRUVFRUVFRUVFRUVFRUVFRUVFRUVFRUVFRUVFQAAAAAVFRUVFRUVFRUVFRUVFRUVFRUV
FRUVFRUVFRUVFRUVFAAAAAAVFRUVFRUVFRUVFRUVFRUVFRUVFRUVFRUVFRUVFRUVFAAAAAAV
FRUVFRUVFRUVFRUVFRUVFRUVFRUVFRUVFRUVFRUVEgAAAAAVFRUVFhUVFRYVFRUWFRUVERUV
FhUVFRYVFhUVFRUVEQAAAAAUFRUWABEVFQYPFhUDERUWBhUVKg8VFAAUABQVFRUVEQAAAAAU
FRUWABYVBhQWFRUGFBUWERUWABYVFgAAFRUVFRUVDgAAAAAUFRUVABUVFBEAFhUGFBUUFRUV
ABUVFgARFRUVFRUVBgAAAAASFRUWABUVFRUVFRUGFBUPFhUWABYVFgAVFBUVFRUVBgAAAAAR
FRUVFhUVFRUVFRUEFBUEFhUVFhUVFQAWFRUVFRUVAwAAAAARFRUVFRUVFRUVFRUVFRUrHRUV
FRUVFRUVFRUVFRUVAwAAAAAPFRUVFRUVFRUVFRUVFCQYKBUVFRUVFRUVFRUVFRUVKgAAAAAO
FRUVFRUVFRUVFRUUJyEeKA4VFRUVFRUVFRUVFRUVAAAAAAAGFRUVFRUVFRUVFRYeKB0kKCQU
FRUVFRUVFRUVFRUVAAAAAAAGFRUVFRUVFRUVFRIDKBQnKCgGFRUVFRUVFRUVFRUVAAAAAAAG
FRUVFRUVFRUVFRUVJxEnJigDFRUVFRUVFRUVFRUVAAAAAAADFRUVFRUVFRUVFRUSKBEnKAkq
FRUVFRUVFRUVFRUVAAAAAAADFRUVFRUVFRUVFRUuJxEoKBEWFRUVFRUVFRUVFRUVAAAAAAAr
FRUVFRUVFRUVFRYvKA8oKCEGFRUVFRUVFRUVFRUVAAAAAAAqFRUVFRUVFRUVFRQmKAcoKCYE
FRUVFRUVFRUVFRUVAAAAAAAAFRUVFRUVFRUVFRIoJwkoKCgDFRUVFRUVFRUVFRUVAAAAAAAA
FRUVFRUVFRUVFQcoJxEnKCgBFRUVFRUVFRUVFRUUAAAAAAAAFRUVFRUVFRUVFQYoKBQnKCgq
FhUVFRUVFRUVFRUUAAAAAAAAFRUVFRUVFRUVFQQoKBQkKCgsFhUVFRUVFRUVFRUUAAAAAAAA
FRUVFRUVFRUVFQMkKCIjKB0RFRUVFRUVFRUVFRUUAAAAAAAAFRUVFRUVFRUVFQMUKCYeKCgV
FRUVFRUVFRUVFRUVAAAAAAAAFRUVFRUVFRUVFRUVKCgaKCgnFRUVFRUVFRUVFRUVAAAAAAAA
FRUVFRUVFRUVFRUUKCgkKCgoAxYVFRUVFRUVFRUVAAAAAAArFRUVFRUVFRUVFRURKCgoKCgo
ERQVFRUVFRUVFRUVAAAAAAADFRUVFRUVFRUVFRURKCgoKCgoIQMWCBUVFRUVFRUVAAAAAAAD
FRUVFRUVFRUVFRURKCgoKCgoKAAWEBYVFRUVFRUVKgAAAAAGFRUVFRUVFRUVFRUUJygoKCgo
KAAWFRMVFRUVFRUVAwAAAAAGFRUVFRUVFRUTFhUWHigoKCEUKgAWFgIVFRUVFRUVBgAAAAAO
FRUVFRUVFRUTFRUVBCgoKCgUFRYVFgIWFRAWFRUVDgAAAAAPFRUVFRUVFRUVFRUVFR4oKCgo
FRUVFQIVFQUVFRUVEQAAAAARFRUVFRUVFRUVExUVFQckKCgoIRUVFRYVFRUVFRUVEgAAAAAR
FRUVFRUVFRUWAhYVFRYDJygoKB0VFRUVFRUVFRUVFAAAAAASFRUVFRUVFRMVBRUVFRUWKhko
KBQVFRUVFRUVFRUVFQAAAAAUFRUVFRUVFQgWFRAVFRUVFgMAKxYVFRUVFRUVFRUVFQAAAAAU
FRUVFRUVFQgWFQIWFRUVFRUWFhUVFRUVFRUVFRUVFQAAAAAUFRUVFRUVFRMTFRUFFhUVFRUV
FRUVFRUVFRUVFRUVFQAAAAAVFRUVFRUVFRYFFhUIAhYVFRUVFRUVFRUVFRUVFRUVFQAAAAAV
FRUVFRUVFRUVFRUVFhUVFRUVFRUVFRUVFRUVFRUVFQAAAAAVFRUVFRUVFRUVFRUVFRUVFRUV
FRUVFRUVFRUVFRUVFQMAAAAVFRUVFRUVFRUVFRUVFRUVFRUVFRUVFRUVFRUVFRUVFQQAAAAV
FRUVFRUVFRUVFRUVFRUVFRUVFRUVFAYPEREUFBQVFQ4AAAAAACoDBAYODxESFBQVFRUVFRUV
FQ8AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA==
ENDofIMG

if false
demo.show_image('bmp', '8-bit-RLE', <<'ENDofIMG')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ENDofIMG
end

demo.show_image('bmp', '32-bit', <<'ENDofIMG')
Qk2GFAAAAAAAADYAAAAoAAAAIgAAADIAAAABABgAAAAAAFAUAABtCwAAbQsAAAAAAAAAAAAA
////ZmbMmZnMmZn/zMz/7u7u////////////////////////////////////////////////
////////////////////////////////////////////////////////////////AAD///8A
M8wAM8wAM8wAM8wAM8wAM8wAM8wAM8wAM8wAM8wzM8wzM8wzM8wzM8wzM8wzM8wAM8wAM8wA
M8wAM8wAM8wAM8wAM8wAM8wAM8wAM8wAM8wAM8wAM8wAM8wAM8wAM8z///8AAP///wAzzAAz
zAAzzAAzzAAzzAAzzAAzzAAzzAAzzAAzzAAzzAAzzAAzzAAzzAAzzAAzzAAzzAAzzAAzzAAz
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ADPMADPMADPMADPMADPMADPMADPMADPMADPMADPMADPMADPMADPMADPMADPMADPMADPMADPM
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zAAzzAAzzAAzzJmZzP///wAA////MzPMADPMADPMADPM////ADPMADPMMzPMZmbM////AADM
ADPMmZn/MzPMADPMMzPMADPMADPMADPM////ADPMADPMAADM////ZmbMADPMADPMADPMADPM
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/////wAA////ZmbMADPMADPMADPMADPMADPMADPMADPMADPMADPMADPMADPMADPMADPMADPM
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zAAzzAAzzAAzzAAzzAAzzAAzzAAzzAAzzAAzzAAzzAAzzAAzzAAzzP///////wAA////mZn/
ADPMADPMADPMADPMADPMADPMADPMADPMADPMADPMAADMzJlmmTMAMzOZmWYzmTMAmWYzMzPM
ADPMADPMADPMADPMADPMADPMADPMADPMADPMADPMADPMADPM////////AAD///+Zmf8AM8wA
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zAAzzAAzzAAzzAAzzAAzzAAzzAAzzAAzzAAzzJlmAGZmzJlmAGYzM5kzAMzM/wAzzAAzzAAz
zAAzzAAzzAAzzAAzzAAzzAAzzAAzzAAzzAAzzP///////wAA////zMz/ADPMADPMADPMADPM
ADPMADPMADPMADPMADPMADPMADPMM2bMmTMAZmbMmWYAmTMAZmb/7u7uADPMADPMADPMADPM
ADPMADPMADPMADPMADPMADPMADPMADPM////////AAD////MzP8AM8wAM8wAM8wAM8wAM8wA
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////////////////////////AAD/////////////////////////////////////////////
////////////////////////////////////////////////////////////////////////
//////////////////8AAA==
ENDofIMG

demo.show_image('gif', 'gif87a', <<'ENDofIMG')
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////////////////////////////////////////////////////////////////////////
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ENDofIMG

demo.show_image('gif', 'gif89a', <<'ENDofIMG')
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////////////////////////////////////////////////////////////////////////
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ENDofIMG

teapot = <<'ENDofIMG'
",
".. c #998074",
"#. c #84aadc",
"a. c #c47e55",
"b. c #4c6ea0",
"c. c #d48a64",
"d. c #ecccbc",
"e. c #8c6252",
"f. c #b1a094",
"g. c #714628",
"h. c #af8a76",
"i. c #2c5284",
"j. c #98745f",
"k. c #8f5124",
"l. c #844614",
"m. c #5074a6",
"n. c #aeb2b9",
"o. c #3e291c",
"p. c #44689b",
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"s. c #e1c8bb",
"t. c #dd782d",
"u. c #9c5824",
"v. c #547aac",
"w. c #906e5a",
"x. c #545253",
"y. c #e07e33",
"z. c #bcaeac",
"A. c #aeb6bc",
"B. c #6f737b",
"C. c #7e5942",
"D. c #b55e1a",
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"F. c #8c7a70",
"G. c #62524d",
"H. c #bc8a6c",
"I. c #936754",
"J. c #6e6d75",
"K. c #8cb0e2",
"L. c #d4beb4",
"M. c #2a201a",
"N. c #c48664",
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"R. c #2a2e33",
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"T. c #8690a1",
"U. c #6c524c",
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"W. c #040204",
"X. c #8cb6e4",
"Y. c #8f4912",
"Z. c #846e5c",
"0. c #244a7c",
"1. c #dcc2b6",
"2. c #33261b",
"3. c #81736c",
"4. c #3c3b46",
"5. c #735f53",
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".b c #a47255",
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"                                                                                                                                ",
"                                                                                                                                ",
"                                                                                                                                ",
"                                                            wawae.e.wa                                                          ",
"                                                          .#j#N#7.a.db.#                                                        ",
"                                                            8.g.x#C.o.                                                          ",
"                                                  N#DaA#raY.Xa4aV#4aPas#q.W.W.6a                                                ",
"                                            i#O.l.4.4.4.4.4.s#wa7.N#wawaXawawawaA#q.C.                                          ",
"                                        3a3a4#wawawae.e.e.I.j#m#d#VaN#KaI.e.e.e.e.waDaO..#j#j#N#N#j#fa                          ",
"                                        O.A#wae.e.I.e.I.I.Kal#m#m#D.u.KaKaKaKaI.e.I.e.Da3aXaE#C#W.o.C.                          ",
"                                      w#e.k.I.I.Kaf#KaKaKaKal#m#m#D.l#j#Kaj#KaKaKaKaKaFai#u.    GaDaI.                          ",
"                                      .#waKaI.KaKaj#j#j#j#j#VaD.m#FaVaj#j#j#j#j#j#j#KaKae.U.    9#o.Ka                          ",
"                                      .#Xae.Kaj#j#N#N#N#N#N#j#N#j#N#N#N#N#N#dbdbN#N#N#I.waU.  e#M.taPa                          ",
"                                    .#U.Xawae.Kaj#N#7.dbj#a.a.a.a.a.a.a.j#7.sa##naj#I.e.waXaU.Yama.#                            ",
"                                    .#U.Xawae.I.Ka.bna3#0#3###sasaa.sac.##Ba7.u#N#Kaf#f#waXaU.4.s#Pa                            ",
"      j#N#5aW.Y.u#j#R#            8a.#XaXae.e.I.KaN#naz#0#q#gb7.7.N#N#N#u#nau#N#N#Kaf#f#e.waU.LaU.                              ",
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"                Ca.#e.j#Va  5#aa0.MaU.Xawak.d#I.j#I#N.5a3#5aBa7.dbN#N#dbN#N#u#I#j#KaKaI.e.waXaU.0.i.p.                          ",
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"          b.m.b.b.X.K..aK.b.7#D#F#hbv#m.b.m.m.F.F.F.v#v#F.v#L.L.L.L#..ka6#h.s.1.L#1.y#M#y#daM#M#day#y#M#M#M#a#a#a#a#            ",
"          p.b.X.X.X.X.X.X.X.9aD#6#..m..aX.y#m.m.F.v#v#v#....1.Ia....kakar#r#r#1.s.M#M#y#a#a#a#M#M#y#y#daM#dadada                ",
"            .a.aX..aX..aX..aD#SaF..ay#y#.aX..am.m.........s.s.9.9.r#r#r#r#kakar#M#M#a#a#a#a#a#a#M#M#M#M#dadada                  ",
"            K.X..a.a.a.a.aH#vab#1.y#X.X.y#y#y#y#v.v...s.d.d.d.s.r#r#h.jajajar#a#M#v.a#a#a#a#a#a#P#dadadaM#                      "};
ENDofIMG

demo.show_image('xpm', 'color', "/* XPM */
static char * teapot[] = {
\"64 48 204 2\",
\"   c #145ec4#{teapot}")

demo.show_image('xpm', 'transparent', "/* XPM */
static char * teapot[] = {
\"64 48 204 2\",
\"   s None c None#{teapot}")

demo.show_image('xbm', 'bitmap', <<'ENDofIMG')
#define flagup_width 48
#define flagup_height 48
static char flagup_bits[] = {
   0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xe0, 0x7f, 0x00,
   0x00, 0x00, 0x00, 0xe0, 0x7f, 0x00, 0x00, 0x00, 0x00, 0xef, 0x6a, 0x00,
   0x00, 0x00, 0xc0, 0x7b, 0x75, 0x00, 0x00, 0x00, 0xe0, 0xe0, 0x6a, 0x00,
   0x00, 0x00, 0x30, 0x60, 0x75, 0x00, 0x00, 0x00, 0x18, 0xe0, 0x7f, 0x00,
   0x00, 0x00, 0x0c, 0xe0, 0x7f, 0x00, 0x00, 0x00, 0x06, 0xe0, 0x04, 0x00,
   0x00, 0x00, 0x03, 0xe0, 0x04, 0x00, 0x00, 0x80, 0x01, 0xe0, 0x06, 0x00,
   0x00, 0xc0, 0x1f, 0xe0, 0x07, 0x00, 0x00, 0xe0, 0x7f, 0xe0, 0x07, 0x00,
   0x00, 0x70, 0xe0, 0xe0, 0x05, 0x00, 0x00, 0x38, 0x80, 0xe1, 0x04, 0x00,
   0x00, 0x18, 0x80, 0xf1, 0x04, 0x00, 0x00, 0x0c, 0x00, 0xfb, 0x04, 0x00,
   0x00, 0x0c, 0x00, 0xff, 0x04, 0x00, 0x00, 0x86, 0x1f, 0xee, 0x04, 0x00,
   0x00, 0x06, 0x06, 0xe6, 0x04, 0x00, 0x00, 0x06, 0x00, 0xe6, 0x04, 0x00,
   0x00, 0x06, 0x00, 0xe6, 0x04, 0x00, 0x00, 0x06, 0x00, 0x66, 0x04, 0x00,
   0x7f, 0x56, 0x52, 0x06, 0xe4, 0xff, 0x00, 0x76, 0x55, 0x06, 0x04, 0x00,
   0x00, 0x56, 0x57, 0x06, 0x04, 0x00, 0x00, 0x56, 0x55, 0x06, 0x06, 0x00,
   0x00, 0x56, 0xd5, 0x06, 0x03, 0x00, 0x00, 0x06, 0x00, 0x86, 0x01, 0x00,
   0x54, 0x06, 0x00, 0xc6, 0x54, 0x55, 0xaa, 0x06, 0x00, 0x66, 0xaa, 0x2a,
   0x54, 0x06, 0x00, 0x36, 0x55, 0x55, 0xaa, 0x06, 0x00, 0xbe, 0xaa, 0x2a,
   0x54, 0xfe, 0xff, 0x6f, 0x55, 0x55, 0xaa, 0xfc, 0xff, 0xa7, 0xaa, 0x2a,
   0x54, 0x01, 0x88, 0x60, 0x55, 0x55, 0xaa, 0xaa, 0x8a, 0xa0, 0xaa, 0x2a,
   0x54, 0x55, 0x8d, 0x60, 0x55, 0x55, 0xaa, 0xaa, 0x8a, 0xa0, 0xaa, 0x2a,
   0x54, 0x55, 0x8d, 0x60, 0x55, 0x55, 0xaa, 0xaa, 0x8a, 0xa0, 0xaa, 0x2a,
   0x54, 0x55, 0x8d, 0x50, 0x55, 0x55, 0xaa, 0xaa, 0x8a, 0xa8, 0xaa, 0x2a,
   0x54, 0x55, 0x95, 0x54, 0x55, 0x55, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0x2a,
   0x54, 0x55, 0x55, 0x55, 0x55, 0x15, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00};
ENDofIMG

demo.show_image('png', 'color', <<'ENDofIMG')
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demo.show_image('png', 'grayscale', <<'ENDofIMG')
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demo.show_image('png', 'transparent color', <<'ENDofIMG')
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demo.show_image('png', 'transparent grayscale', <<'ENDofIMG')
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demo.show_image('jpeg', 'color', <<'ENDofIMG')
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ENDofIMG

demo.show_image('jpeg', 'grayscale', <<'ENDofIMG')
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ENDofIMG

demo.show_image('jpeg', 'progressive color', <<'ENDofIMG')
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ENDofIMG

demo.show_image('jpeg', 'progressive grayscale', <<'ENDofIMG')
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5RXttoo+dwBpbOZacGofM+af/9k=
ENDofIMG

demo.show_image('tiff', 'uncompressed', <<'ENDofIMG')
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ENDofIMG

demo.show_image('tiff', 'packbits compressed', <<'ENDofIMG')
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ENDofIMG

if false
demo.show_image('tiff', 'pixarlog compressed', <<'ENDofIMG')
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ENDofIMG
end

if false
demo.show_image('tiff', 'logluv compressed', <<'ENDofIMG')
TU0AKgAAAAgADgEAAAMAAAABAEAAAAEBAAMAAAABACgAAAECAAMAAAADAAAAtgEDAAMAAAAB
h3QAAAEGAAMAAAABAAIAAAERAAQAAAABAAAAAAESAAMAAAABAAEAAAEVAAMAAAABAAMAAAEW
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AAEAAAEoAAMAAAABAAIAAAAAAAAAEAAQABASwAAAAAQAABLAAAAABAAA
ENDofIMG
end

demo.show_image('tiff', 'jpeg compressed', <<'ENDofIMG')
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ENDofIMG

demo.show_image('tiff', 'deflate compressed', <<'ENDofIMG')
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ENDofIMG

if Tk::PLATFORM['platform'] != 'windows'
demo.show_image('other', 'postscript', <<'ENDofIMG')
%!PS-Adobe-3
%%Title: postscript.ps
%%BoundingBox: 66 648 146 720
%%Pages: 1
%%DocumentProcSets: Adobe_distill 0.96
%%EndComments
%%BeginProcSet: Adobe_distill 0.96
/PROLOGUE 30 40 add dict def
 % 30 procedure entries + room for 40 cached font dictionaries
 PROLOGUE begin
 /clip { } def    % causes problems. remove if "clip" is needed
 /bdef { bind def } bind def	/ldef { load def } bdef
 /T { moveto show } bdef	/A { moveto ashow } bdef
 /W { moveto widthshow } bdef	/AW { moveto awidthshow } bdef
 /f /fill ldef			/R { { rlineto } repeat } bdef
 /r /rlineto ldef		/L { { lineto } repeat } bdef
 /m /moveto ldef		/l { moveto lineto stroke } bdef
 /x { 0 rlineto } bdef		/y { 0 exch rlineto } bdef
 /c /curveto ldef		/cp /closepath ldef
 /s /stroke ldef		/w /setlinewidth ldef
 /g /setgray ldef		/j /setlinejoin ldef
 /d /setdash ldef		/F /setfont ldef
 /C /setcmykcolor where { /setcmykcolor get }{ %ifelse
   { %def
     1 sub 3 { 3 index add neg dup 0 lt { pop 0 } if 3 1 roll } repeat
     setrgbcolor
   } bind
 } ifelse def
 /selectfont where { pop }{ %ifelse
     /selectfont { exch findfont exch scalefont setfont } bdef
 } ifelse
 /MF { exch findfont exch makefont setfont } bdef
 /FF /selectfont ldef
 /DF { selectfont currentfont def } bdef
 /BEGINPAGE { pop /pagesave save def } bdef
 /ENDPAGE { pop pagesave restore showpage } def
 /REMAP { %def
   FontDirectory 2 index known { pop pop pop } { %ifelse
     findfont dup length dict begin
       { 1 index /FID ne {def}{pop pop} ifelse } forall
       exch dup length 0 gt { /Encoding exch def }{ pop } ifelse
     currentdict end definefont pop
   } ifelse
 } bdef
 /RECODE { %def
    3 -1 roll 1 index findfont /Encoding get 256 array copy exch
    0 exch { %forall
     dup type/nametype eq
       { 3 {2 index} repeat put pop 1 add }{ exch pop }ifelse
    } forall pop 3 1 roll REMAP
 } bdef
 end %PROLOGUE
%%EndProcSet: Adobe_distill 0.96
%%EndProlog
%%BeginSetup
PROLOGUE begin
%%EndSetup
%%Page: 1 1
1 BEGINPAGE
1 g
2 setlinecap
144 53 m
390 x
-19 y
-390 x
eofill
0 g
1.268 w
0 setlinecap
4 setmiterlimit
[] 0 d
109.698 714.182 m
111.525 713.672 112.472 713.234 113.624 712.431 c
-22.3128 -25.8381 r
97.4019 682.652 103.794 672.84 100.329 664.844 c
102.034 675.687 90.7436 683.82 84.1099 684.842 c
25.588 29.3407 r
f
1.0361 w
f
f
91.8805 654.468 m
96.0255 654.285 100.155 654.188 104.481 654.188 c
113.804 654.188 122.752 654.636 131.141 655.44 c
134.222 655.737 136.724 658.133 137.108 661.279 c
137.79 666.855 138.107 672.696 138.107 678.705 c
138.107 684.714 137.79 690.555 137.108 696.131 c
136.724 699.277 134.222 701.674 131.141 701.97 c
127.476 702.321 123.704 702.604 119.84 702.813 c
119.84 702.813 103.842 668.373 102.231 664.827 c
99.8549 659.595 96.601 655.765 91.8805 654.468 c
f
0.7851 w
77.8202 655.44 m
74.7171 655.948 72.2887 657.716 71.8525 661.279 c
71.1725 666.855 70.8549 672.696 70.8549 678.705 c
70.8549 684.714 71.1725 690.555 71.8525 696.131 c
72.2381 699.277 74.7417 701.674 77.8202 701.97 c
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8.16241 9.07727 r
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-28.4564 -32.9334 r
80.6983 681.906 98.7446 677.354 98.7446 666.708 c
98.7446 655.332 86.3243 654.054 77.8202 655.44 c
f
0.0843 w
139.67 644.154 m
140.194 644.154 140.619 644.576 140.619 645.098 c
140.619 645.619 140.194 646.042 139.67 646.042 c
139.146 646.042 138.721 645.619 138.721 645.098 c
138.721 644.576 139.146 644.154 139.67 644.154 c
1 ENDPAGE
%%Trailer
end %PROLOGUE
%%Pages: 1
%%EOF
ENDofIMG
end

if false
demo.show_image('other', 'pdf', <<'ENDofIMG')
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ENDofIMG
end

#######################

Tk.mainloop