Re: [ruby-gnome2-devel-en] map-like thing with custom location marking

[Dobai-Pataky B. <dp...@gm...>]

require 'gtk2'
w=Gtk::Window.new("attempt").set_size_request(300,600)
w.signal_connect("destroy"){Gtk.main_quit}
w.add(eb=Gtk::EventBox.new.add(im=Gtk::Image.new))

points=Array.new
im.signal_connect('expose-event',points){|me,ev,pts|
	cr=me.window.create_cairo_context.set_line_cap(Cairo::LineCap::ROUND).set_line_width(10)
	pc=nil
	pts.each{|c|
		pc=c if pc.nil?
		cr.move_to(pc[0],pc[1])
		cr.line_to(c[0],c[1])
		pc=c
	}
	cr.stroke
}
eb.signal_connect("button-press-event",points,im){|me,ev,pts,im| 
	pts.push([ev.x,ev.y])
	im.queue_draw_area(0, 0, im.allocation.width, im.allocation.height)
}

w.show_all
Gtk.main