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#!/usr/bin/env ruby
=begin
rgtk+cairo.rb - Ruby/GTK2 using Ruby/Cairo sample script.
Copyright (c) 2002-2015 Ruby-GNOME2 Project Team
This program is licenced under the same licence as Ruby-GNOME2.
Heavily inspired from png.rb example of rcairo.
=end
require "gtk3"
w = Gtk::Window.new
w.add(vb = Gtk::Box.new(:vertical))
vb.add(da = Gtk::DrawingArea.new)
da.set_size_request(200, 200)
da.signal_connect "draw" do |_widget, cr|
# fill background with white
cr.set_source_rgba(1.0, 1.0, 1.0, 1.0)
cr.paint
# create shape
cr.move_to(50, 50)
cr.curve_to(100, 25, 100, 75, 150, 50)
cr.line_to(150, 150)
cr.line_to(50, 150)
cr.close_path
cr.set_source_rgb(0.0, 0.0, 0.0)
cr.fill_preserve
cr.set_source_rgb(1.0, 0.0, 0.0)
cr.set_line_join(Cairo::LINE_JOIN_MITER)
cr.set_line_width(4)
cr.stroke
end
w.signal_connect("destroy") { Gtk.main_quit }
w.show_all
Gtk.main
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