class ThemingStyleClassesDemo

# # This sample code is a port of gtk3/demos/gtk-demo/theming_style_classes.c. # The UI file used in this sample code is copied from gtk3/demos/gtk-demo. # This is licensed under the terms of the GNU Lesser General Public # License, version 2.1 or (at your option) later. # # Copyright (C) 2014-2016 Ruby-GNOME2 Project Team # # This library is free software; you can redistribute it and/or # modify it under the terms of the GNU Lesser General Public # License as published by the Free Software Foundation; either # version 2.1 of the License, or (at your option) any later version. # # This library is distributed in the hope that it will be useful, # but WITHOUT ANY WARRANTY; without even the implied warranty of # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU # Lesser General Public License for more details. # # You should have received a copy of the GNU Lesser General Public # License along with this library; if not, write to the Free Software # Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA

Theming/Style Classes

GTK+ uses CSS for theming. Style classes can be associated with widgets to inform the theme about intended rendering.

This demo shows some common examples where theming features of GTK+ are used for certain effects: primary toolbars, inline toolbars and linked buttons.

Public Class Methods

new(main_window) click to toggle source
# File gtk3/sample/gtk-demo/theming_style_classes.rb, line 34
def initialize(main_window)
  @window = Gtk::Window.new(:toplevel)
  @window.screen = main_window.screen
  @window.title = "Style Classes"
  @window.resizable = false

  builder = Gtk::Builder.new(:resource => "/theming_style_classes/theming.ui")
  grid = builder["grid"]
  grid.show_all
  @window.add(grid)
end

Public Instance Methods

run() click to toggle source
# File gtk3/sample/gtk-demo/theming_style_classes.rb, line 46
def run
  if !@window.visible?
    @window.show_all
  else
    @window.destroy
  end
  @window
end