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#!/usr/bin/env ruby
=begin
style_property.rb - Ruby/GTK sample script.
Copyright (c) 2004-2015 Ruby-GNOME2 Project Team
This program is licenced under the same licence as Ruby-GNOME2.
=end
require "gtk3"
class MyButton < Gtk::Button
type_register
def initialize(label = nil)
# When type_register() is used.
# super is equivalent to GLib::Object#initialize.
super("label" => label)
end
install_style_property(GLib::Param::Int.new("foo", # name
"Foo", # nick
"FOO", # blurb
0, # min
100, # max
5, # default
GLib::Param::READABLE |
GLib::Param::WRITABLE)) do |pspec, str|
p pspec, str
str.to_i + 10 # return the converted value.
end
install_style_property(GLib::Param::Enum.new("bar", # name
"Bar", # nick
"BAR", # blurb
GLib::Type["GdkCursorType"], # Enum type
Gdk::CursorType::ARROW, # default
GLib::Param::READABLE |
GLib::Param::WRITABLE)) do |pspec, str|
p pspec, str
if str.strip! == "boat"
Gdk::Cursor::BOAT
else
pspec.default
end
end
end
provider = Gtk::CssProvider.new
provider.load(:data => <<-CSS)
* {
-MyButton-foo: 30;
-MyButton-bar: boat;
}
CSS
display = Gdk::Display.default
screen = display.default_screen
Gtk::StyleContext.add_provider_for_screen(screen, provider, Gtk::StyleProvider::PRIORITY_USER)
win = Gtk::Window.new("Custom style properties")
b = MyButton.new("Hello")
b.signal_connect("clicked") { Gtk.main_quit }
p MyButton.style_properties
win.set_default_size(100, 100)
win.add(b)
win.show_all
win.signal_connect("destroy") { Gtk.main_quit }
# You need to call them after "Gtk::Widget#show"
# (Or in expose event).
p b.style_get_property("foo")
p b.style_get_property("bar")
Gtk.main
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