class TreeStoreDemo
# Copyright © 2017 Ruby-GNOME2 Project Team # This program is licenced under the same licence as Ruby-GNOME2. #
Tree View/Tree Store¶ ↑
The GtkTreeStore is used to store data in tree form, to be used later on by a GtkTreeView to display it. This demo builds a simple GtkTreeStore and displays it. If you're new to the GtkTreeView widgets and associates, look into the GtkListStore example first.
Constants
- April
- August
- December
- February
- January
- July
- June
- March
- May
- NUM_COLUMNS
- November
- October
- September
- Toplevel
- TreeItem
Public Class Methods
new(main_window)
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# File gtk3/sample/gtk-demo/tree_store.rb, line 138 def initialize(main_window) @window = Gtk::Window.new(:toplevel) @window.screen = main_window.screen @window.title = "Tree Store" vbox = Gtk::Box.new(:vertical, 8) vbox.margin = 8 @window.add(vbox) label = Gtk::Label.new("Jonathan's Holiday Card Planning Sheet") vbox.pack_start(label) sw = Gtk::ScrolledWindow.new sw.shadow_type = :etched_in sw.set_policy(:automatic, :automatic) vbox.pack_start(sw, :expand => true, :fill => true, :padding => 0) create_model @treeview = Gtk::TreeView.new(@model) @treeview.selection.mode = :multiple add_columns sw.add(@treeview) # Expand all rows after the treeview widget has been realized @treeview.signal_connect("realize", &:expand_all) @window.set_default_size(650, 400) end
Public Instance Methods
run()
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# File gtk3/sample/gtk-demo/tree_store.rb, line 166 def run if !@window.visible? @window.show_all else @window.destroy end @window end