Clutter::Behaviour::Opacity(3) A behaviour controlling opacity

SYNOPSIS


my $behaviour = Clutter::Behaviour::Opacity->new();
$behaviour->set_alpha(Clutter::Alpha->new($timeline, 'linear'));
$behaviour->set_bounds(255, 0); # fade out
$behaviour->apply($actor);
$timeline->start();

DESCRIPTION

Clutter::Behaviour::Opacity interpolates the opacity of the actors to which it has been applied between two values.

HIERARCHY

  Glib::Object
  +----Clutter::Behaviour
       +----Clutter::Behaviour::Opacity

METHODS

behaviour = Clutter::Behaviour::Opacity->new ($alpha=undef, $opacity_start, $opacity_end)

  • $alpha (Clutter::Alpha or undef)
  • $opacity_start (unsigned)
  • $opacity_end (unsigned)

(start, end) = $behaviour->get_bounds

$behaviour->set_bounds ($start, $end)

  • $start (unsigned)
  • $end (unsigned)

PROPERTIES

'opacity-end' (Glib::UInt : readable / writable / private)
Final opacity level
'opacity-start' (Glib::UInt : readable / writable / private)
Initial opacity level

COPYRIGHT

Copyright (C) 2006, 2007, 2008 OpenedHand Ltd

Copyright (C) 2009 Intel Corporation

This module is free software; you can redistribute it and/or modify it under the terms of either:

  • the GNU Lesser General Public Library version 2.1; or
  • the Artistic License, version 2.0.

See Clutter for the full copyright notice.

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