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-rw-r--r--jni/ruby/ext/tk/sample/demos-en/browse282
1 files changed, 82 insertions, 0 deletions
diff --git a/jni/ruby/ext/tk/sample/demos-en/browse2 b/jni/ruby/ext/tk/sample/demos-en/browse2
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+++ b/jni/ruby/ext/tk/sample/demos-en/browse2
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+#!/usr/bin/env ruby
+
+# browse --
+# This script generates a directory browser, which lists the working
+# directory and allow you to open files or subdirectories by
+# double-clicking.
+
+require 'tk'
+
+class Browse
+ BROWSE_WIN_COUNTER = TkVariable.new(0)
+
+ def initialize(dir)
+ BROWSE_WIN_COUNTER.value = BROWSE_WIN_COUNTER.to_i + 1
+
+ # create base frame
+ base = TkToplevel.new {
+ minsize(1,1)
+ title('Browse : ' + dir)
+ }
+
+ # Create a scrollbar on the right side of the main window and a listbox
+ # on the left side.
+ list = TkListbox.new(base, 'relief'=>'sunken',
+ 'width'=>20, 'height'=>20, 'setgrid'=>'yes') {|l|
+ TkScrollbar.new(base, 'command'=>proc{|*args| l.yview *args}) {|s|
+ pack('side'=>'right', 'fill'=>'y')
+ l.yscrollcommand(proc{|first,last| s.set(first,last)})
+ }
+
+ pack('side'=>'left', 'fill'=>'both', 'expand'=>'yes')
+
+ # Fill the listbox with a list of all the files in the directory (run
+ # the "ls" command to get that information).
+ open("|ls -a #{dir}", 'r'){|fid| fid.readlines}.each{|fname|
+ l.insert('end', fname.chomp)
+ }
+
+ }
+
+ # Set up bindings for the browser.
+ base.bind('Destroy', proc{
+ Browse::BROWSE_WIN_COUNTER.value = \
+ Browse::BROWSE_WIN_COUNTER.to_i - 1
+ })
+ base.bind('Control-c', proc{base.destroy})
+ list.bind('Double-Button-1',
+ proc{TkSelection.get.each{|f| self.browse dir, f}})
+ end
+
+ # The method below is invoked to open a browser on a given file; if the
+ # file is a directory then another instance of this program is invoked; if
+ # the file is a regular file then the Mx editor is invoked to display
+ # the file.
+ def browse (dir, file)
+ file = dir + File::Separator + file if dir != '.'
+ type = File.ftype(file)
+ if type == 'directory'
+ Browse.new(file)
+ else
+ if type == 'file'
+ if ENV['EDITOR']
+ system(ENV['EDITOR'] + ' ' + file + ' &')
+ else
+ system('xedit ' + file + ' &')
+ end
+ else
+ STDOUT.print "\"#{file}\" isn't a directory or regular file"
+ end
+ end
+ end
+
+end
+
+Browse.new(ARGV[0] ? ARGV[0] : '.')
+
+TkRoot.new {
+ withdraw
+ Browse::BROWSE_WIN_COUNTER.trace('w', proc{exit if Browse::BROWSE_WIN_COUNTER.to_i == 0})
+}
+
+Tk.mainloop