class ThemingStyleClassesDemo

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