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|
#!/usr/bin/env ruby
=begin
composite.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: composite.rb,v 1.6 2006/06/17 14:38:08 mutoh Exp $
=end
require 'gtk3'
filename = ARGV[0]
unless filename
puts "ruby #{$0} filename"
exit(1)
end
src = GdkPixbuf::Pixbuf.new(:file => filename)
vbox = Gtk::Box.new(:vertical)
dst = src.composite(:dest_width => 100,
:dest_height => 100,
:interp_type => :hyper,
:overall_alpha => 255,
:check_size => 32,
:color1 => 0xFF0000,
:color2 => 0x00FF00)
vbox.pack_start(Gtk::Image.new(:pixbuf => dst))
dst = GdkPixbuf::Pixbuf.new(:colorspace => :rgb,
:has_alpha => true,
:bits_per_sample => 8,
:width =>200,
:height => 200)
dst.composite!(src,
:dest_width => 200,
:dest_height => 200,
:scale_x => 1.8,
:scale_y => 1.8,
:interp_type => :hyper,
:overall_alpha => 200)
vbox.pack_start(Gtk::Image.new(:pixbuf => dst))
dst = GdkPixbuf::Pixbuf.new(:colorspace => :rgb,
:has_alpha => true,
:bits_per_sample => 8,
:width =>200,
:height => 200)
dst.composite!(src,
:dest_x => 10,
:dest_y => 10,
:dest_width => 180,
:dest_height => 180,
:offset_x => 15,
:offset_y => 15,
:scale_x => 3,
:scale_y => 2,
:overall_alpha => 200,
:check_x => 100,
:check_y => 100,
:check_size => 16,
:color1 => 0x999999,
:color2 => 0xdddddd)
vbox.pack_start(Gtk::Image.new(:pixbuf => dst))
window = Gtk::Window.new.add(vbox)
window.signal_connect('delete-event') do
Gtk.main_quit
end
window.show_all
Gtk.main
|
