class Gtk2KeyPress

description: Use within a Ruby GTK2 application for triggering on_keypress,

on_keydown, and on_keyup events.

Public Class Methods

new(parent, external=nil) click to toggle source

# File lib/gtk2keypress.rb, line 11
def initialize(parent, external=nil)

  parent.add_events(Gdk::Event::KEY_PRESS)
  last_keydown, last_keyup = '', ''

  parent.signal_connect("key-press-event") do |w, e|

    last_keyup = ''

    if last_keydown != e.keyval then

      def e.val()
        self.keyval
      end

      def e.name()
        Gdk::Keyval.to_name(self.keyval)
      end

      on_keypress(e)
      external.on_keypress if external and external.respond_to? :on_keypress
      on_keydown(e)
      external.on_keydown if external and external.respond_to? :on_keydown 

    end

    last_keydown = e.keyval
  end


  parent.signal_connect("key-release-event") do |w, e|

    last_keydown = ''

    if e.keyval != last_keyup and e.keyval != last_keydown then        

      def e.val()
        self.keyval
      end

      def e.name()
        Gdk::Keyval.to_name(self.keyval)
      end

      on_keyup(e)
      external.on_keyup if external and external.respond_to?  :on_keyup
    end

    last_keyup = e.keyval

  end

end

Private Instance Methods

on_keydown(e) click to toggle source

# File lib/gtk2keypress.rb, line 70
def on_keydown(e)
end

on_keypress(e) click to toggle source

# File lib/gtk2keypress.rb, line 67
def on_keypress(e)
end

on_keyup(e) click to toggle source

# File lib/gtk2keypress.rb, line 73
def on_keyup(e)
end