Clutter::Interval(3pm)
NAME
Clutter::Interval - An object holding an interval of two values
SYNOPSIS
my $interval = Clutter::Interval->new('Glib::Int', 0, 11);
my $value = $interval->compute_value(0.5);
DESCRIPTION
Clutter::Interval is a simple object providing a strongly-typed storage
for a interval between two values.
Note: Once a Clutter::Interval for a specific type has been
instantiated the Clutter::Interval value-type property cannot be
changed anymore.
Clutter::Interval is used by #ClutterAnimation to define the interval
of values that an implicit animation should tween over.
Note: Currently, you cannot subclass a Clutter::Interval to override
the interval validation and the value computation; this requires
additional support inside the Glib Perl bindings that is not currently
available.
HIERARCHY
- Glib::Object
+----Glib::InitiallyUnowned - +----Clutter::Interval
METHODS
- interval = Clutter::Interval->new ($type, $initial=undef, $final=undef)
- o $type (string)
- o $initial (scalar)
- o $final (scalar)
- Creates a new Clutter::Interval, representing an interval of values
with the given type - value = $interval->compute_value ($factor)
- o $factor (double)
- Computes the value of the interval given the factor
- scalar = $interval->get_final_value
- Gets the final value of the interval
- $interval->set_final_value ($final)
- o $final (scalar)
- Sets the final value of the interval
- scalar = $interval->get_initial_value
- Gets the initial value of the interval
- $interval->set_initial_value ($initial)
- o $initial (scalar)
- Sets the initial value of the interval
- (initial, final) = $interval->get_interval ()
- Gets the initial and final values of the interval
- $interval->set_interval ($initial, $final)
- o $initial (scalar)
- o $final (scalar)
- Sets the initial and final values of the interval. The values must be compatible with the type set when creating the interval itself
- boolean = $interval->validate ($pspec)
- o $pspec (Glib::ParamSpec)
- string = $interval->get_value_type
- Gets the type of the values inside the interval
PROPERTIES
- 'value-type' (GType : readable / writable / construct-only)
- The type of the values in the interval
SEE ALSO
Clutter, Glib::Object, Glib::InitiallyUnowned
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:
o the GNU Lesser General Public Library version 2.1; or
o the Artistic License, version 2.0.
- See Clutter for the full copyright notice.