class HeaderbarDemo
Header Bar¶ ↑
GtkHeaderBar is a container that is suitable for implementing window titlebars. One of its features is that it can position a title (and optional subtitle) centered with regard to the full width, regardless of variable-width content at the left or right.
It is commonly used with gtk_window_set_titlebar()
Public Class Methods
new(main_window)
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# File gtk3/sample/gtk-demo/headerbar.rb, line 16 def initialize(main_window) @window = Gtk::Window.new(:toplevel) @window.screen = main_window.screen @window.set_default_size(600, 400) header = Gtk::HeaderBar.new header.show_close_button = true header.title = "Welcome to Facebook - Log in, sign up or learn more" header.has_subtitle = false button = Gtk::Button.new icon = Gio::ThemedIcon.new("mail-send-receive-symbolic") image = Gtk::Image.new(:icon => icon, :size => :button) button.add(image) header.pack_end(button) box = Gtk::Box.new(:horizontal, 0) box.style_context.add_class("linked") button = Gtk::Button.new image = Gtk::Image.new(:icon_name => "pan-start-symbolic", :size => :button) button.add(image) box.add(button) button = Gtk::Button.new image = Gtk::Image.new(:icon_name => "pan-end-symbolic", :size => :button) button.add(image) box.add(button) header.pack_start(box) @window.titlebar = header @window.add(Gtk::TextView.new) end
Public Instance Methods
run()
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# File gtk3/sample/gtk-demo/headerbar.rb, line 52 def run if !@window.visible? @window.show_all else @window.destroy end end