class TextviewDemo
# Copyright © 2017 Ruby-GNOME2 Project Team # This program is licenced under the same licence as Ruby-GNOME2. #
Text View/Multiple Views¶ ↑
The GtkTextView widget displays a GtkTextBuffer. One GtkTextBuffer can be displayed by multiple GtkTextViews. This demo has two views displaying a single buffer, and shows off the widget's text formatting features.
Public Class Methods
new(main_window)
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# File gtk3/sample/gtk-demo/textview.rb, line 14 def initialize(main_window) @window = Gtk::Window.new(:toplevel) @window.screen = main_window.screen @window.set_default_size(450, 450) @window.title = "Multiple Views" vpaned = Gtk::Paned.new(:vertical) @window.add(vpaned) # For convenience, we just use the autocreated buffer from # the first text view; you could also create the buffer # by itself Gtk::TextBuffer.new, then later create a view # widget. view1 = Gtk::TextView.new view2 = Gtk::TextView.new(view1.buffer) sw = Gtk::ScrolledWindow.new sw.set_policy(:automatic, :automatic) vpaned.add1(sw) sw.add(view1) sw = Gtk::ScrolledWindow.new sw.set_policy(:automatic, :automatic) vpaned.add2(sw) sw.add(view2) create_tags(view1.buffer) insert_text(view1.buffer) attach_widgets(view1) attach_widgets(view2) vpaned.show_all end
Public Instance Methods
run()
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# File gtk3/sample/gtk-demo/textview.rb, line 50 def run if !@window.visible? @window.show_all else @window.destroy end @window end