class OverlayDemo
# Copyright © 2015-2016 Ruby-GNOME2 Project Team # This program is licenced under the same licence as Ruby-GNOME2. #
Overlay/Interactive Overlay¶ ↑
Shows widgets in static positions over a main widget.
The overlayed widgets can be interactive controls such as the entry in this example, or just decorative, like the big blue label.
Public Class Methods
new(main_window)
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# File gtk3/sample/gtk-demo/overlay.rb, line 14 def initialize(main_window) @window = Gtk::Window.new(:toplevel) @window.set_default_size(500, 510) @window.title = "Interactive Overlay" @window.screen = main_window.screen overlay = Gtk::Overlay.new initialize_grid overlay.add(@grid) @entry = Gtk::Entry.new @entry.placeholder_text = "Your Lucky Number" vbox = Gtk::Box.new(:vertical, 10) overlay.add_overlay(vbox) overlay.set_overlay_pass_through(vbox, true) vbox.halign = :center vbox.valign = :center label = Gtk::Label.new("<span foreground='blue' weight='ultrabold' font='40'>Numbers</span>") label.use_markup = true vbox.pack_start(label, :expand => false, :fill => false, :padding => 8) vbox.pack_start(@entry, :expand => false, :fill => false, :padding => 8) @window.add(overlay) overlay.show_all end
Public Instance Methods
run()
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# File gtk3/sample/gtk-demo/overlay.rb, line 43 def run if !@window.visible? @window.show_all else @window.destroy end end