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#!/usr/bin/env ruby
=begin
scale.rb - Ruby/GdkPixbuf sample script.
Copyright (c) 2002-2020 Ruby-GNOME Project Team
This program is licenced under the same licence as Ruby-GNOME.
$Id: scale.rb,v 1.10 2006/06/17 14:38:08 mutoh Exp $
=end
require 'gtk3'
filename = ARGV[0]
unless filename
puts "ruby #{$0} filename"
exit(1)
end
vbox = Gtk::Box.new(:vertical)
src = GdkPixbuf::Pixbuf.new(:file => filename)
vbox.add(Gtk::Image.new(:pixbuf => src))
dst = src.scale(200, 200, :nearest)
dst.scale!(src, 60, 60, 90, 90, -50, 50, 6, 3)
vbox.add(Gtk::Image.new(:pixbuf => dst))
dst2 = GdkPixbuf::Pixbuf.new(:colorspace => :rgb,
:has_alpha =>true,
:bits_per_sample => 8,
:width => 200,
:height => 200)
dst2.scale!(src, 0, 0, 100, 100, 0, 0, 1.5, 1.5)
vbox.add(Gtk::Image.new(:pixbuf => dst2))
dst3 = GdkPixbuf::Pixbuf.new(:colorspace => :rgb,
:has_alpha =>true,
:bits_per_sample => 8,
:width => 200,
:height => 200)
dst3.scale!(src, 0, 0, 200, 200, 0, 0, 5, 3, :hyper)
vbox.add(Gtk::Image.new(:pixbuf => dst3))
window = Gtk::Window.new
window.signal_connect('delete-event') do
Gtk.main_quit
end
window.add(vbox).show_all
Gtk.main
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