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# Copyright (c) 2015-2016 Ruby-GNOME2 Project Team
# This program is licenced under the same licence as Ruby-GNOME2.
#
=begin
= Stack Sidebar
GtkStackSidebar provides an automatic sidebar widget to control
navigation of a GtkStack object. This widget automatically updates it
content based on what is presently available in the GtkStack object,
and using the "title" child property to set the display labels.
=end
class SidebarDemo
def initialize(_main_window)
@window = Gtk::Window.new(:toplevel)
@window.resizable = true
@window.set_size_request(500, 350)
header = Gtk::HeaderBar.new
header.show_close_button = true
@window.titlebar = header
@window.title = "Stack Sidebar"
box = Gtk::Box.new(:horizontal, 0)
sidebar = Gtk::StackSidebar.new
box.pack_start(sidebar, :expand => false, :fill => false, :padding => 0)
stack = Gtk::Stack.new
stack.transition_type = :slide_up_down
sidebar.stack = stack
widget = Gtk::Separator.new(:vertical)
box.pack_start(widget, :expand => false, :fill => false, :padding => 0)
box.pack_start(stack, :expand => true, :fill => true, :padding => 0)
pages = ["Welcome to GTK+",
"GtkStackSidebar Widget",
"Automatic navigation",
"Consistent appearance",
"Scrolling",
"Page 6",
"Page 7",
"Page 8",
"Page 9"]
pages.each_with_index do |page_string, i|
child = nil
if i.zero?
child = Gtk::Image.new(:icon_name => "help-about", :size => :menu)
child.pixel_size = 256
else
child = Gtk::Label.new(page_string)
end
stack.add_named(child, page_string)
stack.child_set_property(child, "title", page_string)
end
@window.add(box)
end
def run
if !@window.visible?
@window.show_all
else
@window.destroy
end
end
end
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