Reference

Clutter::Behaviour::Opacity(3pm)

A behaviour controlling opacity

NAME

Clutter::Behaviour::Opacity - 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

SEE ALSO

Clutter::Behaviour, Clutter::Alpha

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.

History