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authoryugui <yugui@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>2008-08-25 15:13:14 +0000
committeryugui <yugui@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>2008-08-25 15:13:14 +0000
commitd0233291bc8a5068e52c69c210e5979e5324b5bc (patch)
tree7d9459449c33792c63eeb7baa071e76352e0baab /trunk/ext/tk/sample/binstr_usage.rb
parent0dc342de848a642ecce8db697b8fecd83a63e117 (diff)
parent72eaacaa15256ab95c3b52ea386f88586fb9da40 (diff)
re-adding tag v1_9_0_4 as an alias of trunk@18848v1_9_0_4
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/tags/v1_9_0_4@18849 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
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diff --git a/trunk/ext/tk/sample/binstr_usage.rb b/trunk/ext/tk/sample/binstr_usage.rb
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--- a/trunk/ext/tk/sample/binstr_usage.rb
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-#!/usr/bin/env ruby
-
-require "tk"
-
-TkMessage.new(:width=>360, :text=><<EOM).pack
-This sample shows how to use a binary sequence between Ruby and Tk. \
-This reads the image data from the file as the binary sequence.
-
-To treat the difference of encodings between on Ruby and on Tk seamlessly, \
-Ruby/Tk converts the encoding of string arguments automatically. \
-I think it is comfortable for users on almost all situations. \
-However, when treats a binary sequence, the convert process makes troubles.
-
-Tk::BinaryString class (subclass of Tk::EncodedString class) is the class \
-to avoid such troubles. Please see the source code of this sample. \
-A Tk::BinaryString instance is used to create the image for the center button.
-EOM
-
-ImgFile=[File.dirname(__FILE__), 'images','tcllogo.gif'].join(File::Separator)
-
-ph1 = TkPhotoImage.new(:file=>ImgFile)
-p ph1.configinfo
-
-b_str = Tk::BinaryString(IO.read(ImgFile))
-p [b_str, b_str.encoding]
-
-ph2 = TkPhotoImage.new(:data=>b_str)
-p ph2.configinfo
-p ph2.data(:grayscale=>true)
-
-ph3 = TkPhotoImage.new(:palette=>256)
-ph3.put(ph2.data)
-
-ph4 = TkPhotoImage.new()
-ph4.put(ph2.data(:grayscale=>true))
-
-#p [b_str.encoding, b_str.rb_encoding]
-
-f = TkFrame.new.pack
-TkButton.new(:parent=>f, :image=>ph1, :command=>proc{exit}).pack(:side=>:left)
-TkButton.new(:parent=>f, :image=>ph2, :command=>proc{exit}).pack(:side=>:left)
-TkButton.new(:parent=>f, :image=>ph3, :command=>proc{exit}).pack(:side=>:left)
-TkButton.new(:parent=>f, :image=>ph4, :command=>proc{exit}).pack(:side=>:left)
-
-Tk.mainloop