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#!/usr/bin/env jruby
#
# IRB in swing
#
# Damian Steer (pldms@mac.com)
require 'jruby'
require 'irb'
require 'irb/completion'
if ARGV.empty?
# default options, esp. useful for jrubyw
ARGV << '--readline' << '--prompt' << 'inf-ruby'
end
import java.awt.Color
import java.awt.Font
import javax.swing.JFrame
import java.awt.EventQueue
# Try to find preferred font family, use otherwise -- err -- otherwise
def find_font(otherwise, style, size, *families)
avail_families = java.awt.GraphicsEnvironment.local_graphics_environment.available_font_family_names
fontname = families.find(proc {otherwise}) { |name| avail_families.include? name }
Font.new(fontname, style, size)
end
text = javax.swing.JTextPane.new
text.font = find_font('Monospaced', Font::PLAIN, 14, 'Monaco', 'Andale Mono')
text.margin = java.awt.Insets.new(8,8,8,8)
text.caret_color = Color.new(0xa4, 0x00, 0x00)
text.background = Color.new(0xf2, 0xf2, 0xf2)
text.foreground = Color.new(0xa4, 0x00, 0x00)
pane = javax.swing.JScrollPane.new
pane.viewport_view = text
frame = JFrame.new('JRuby IRB Console (tab will autocomplete)')
frame.default_close_operation = JFrame::EXIT_ON_CLOSE
frame.set_size(700, 600)
frame.content_pane.add(pane)
tar = org.jruby.demo.TextAreaReadline.new(text,
" Welcome to the JRuby IRB Console [#{JRUBY_VERSION}] \n\n")
JRuby.objectspace = true # useful for code completion
tar.hook_into_runtime_with_streams(JRuby.runtime)
# We need to show the frame on EDT,
# to avoid deadlocks.
# Once JRUBY-2449 is fixed,
# the code will me simplifed.
class FrameBringer
include java.lang.Runnable
def initialize(frame)
@frame = frame
end
def run
@frame.visible = true
end
end
EventQueue.invoke_later(FrameBringer.new(frame))
# From vanilla IRB
if __FILE__ == $0
IRB.start(__FILE__)
else
# check -e option
if /^-e$/ =~ $0
IRB.start(__FILE__)
else
IRB.setup(__FILE__)
end
end
frame.dispose
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