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package Clutter::Ex::Behaviour::Rotate;
# behaviour.pl: Example showing the behaviours API in Clutter
# Copyright (C) 2007 OpenedHand, Ltd.
# Author: Emmanuele Bassi
#
# This is free software. Permission to redistribute and/or modify it under
# the same terms of Perl itself.
use strict;
use warnings;
use Glib;
use Clutter;
# we need to register these enums first hand, so that the
# object registering code can find them when defining the
# properties of the Clutter::Ex::Behaviour::Rotate.
sub BEGIN {
Glib::Type->register_enum(
'Clutter::Ex::RotateDirection',
'clockwise',
'anticlockwise',
);
Glib::Type->register_enum(
'Clutter::Ex::RotateAxis',
'x',
'y',
'z',
);
}
use Glib::Object::Subclass
'Clutter::Behaviour',
signals => { },
properties => [
Glib::ParamSpec->double(
'angle-start',
'Angle Start',
'Initial angle value',
0.0, 359.0, 0.0,
[ qw( readable writable ) ],
),
Glib::ParamSpec->double(
'angle-end',
'Angle End',
'Final angle value',
0.0, 359.0, 359.0,
[ qw( readable writable ) ],
),
Glib::ParamSpec->enum(
'direction',
'Direction',
'Direction of the rotation',
'Clutter::Ex::RotateDirection',
'clockwise',
[ qw( readable writable ) ],
),
Glib::ParamSpec->enum(
'axis',
'Axis',
'Axis of the rotation',
'Clutter::Ex::RotateAxis',
'z',
[ qw( readable writable ) ],
),
]
;
sub INIT_INSTANCE {
my ($self) = @_;
$self->{angle_start} = 0.0;
$self->{angle_end} = 359.0;
$self->{direction} = 'clockwise';
$self->{axis} = 'z';
}
sub ALPHA_NOTIFY {
my ($self, $alpha_value) = @_;
my $angle = $alpha_value
* ($self->{angle_end} - $self->{angle_start})
/ Clutter::Alpha->MAX_ALPHA;
my @actors = $self->get_actors();
return unless scalar @actors;
foreach my $actor (@actors) {
$actor->set_rotation('z-axis', $angle,
$actor->get_x() - 20,
$actor->get_y() - 20,
0);
}
}
package main;
use strict;
use warnings;
use Glib qw( :constants );
use Clutter qw( :init );
my $stage = Clutter::Stage->get_default();
$stage->set_color(Clutter::Color->new(0xcc, 0xcc, 0xcc, 0xff));
$stage->signal_connect(key_press_event => sub { Clutter->main_quit(); });
my $group = Clutter::Group->new();
$stage->add($group);
$group->show();
my $rect = Clutter::Rectangle->new();
$rect->set_size(100, 100);
$rect->set_position(0, 0);
$rect->set_color(Clutter::Color->new(0x33, 0x22, 0x22, 0xff));
$rect->set_border_width(10);
$rect->set_border_color(Clutter::Color->new(0xff, 0xcc, 0xcc, 0xff));
$group->add($rect);
$rect->show();
my $hand;
eval { $hand = Clutter::Texture->new('redhand.png') };
if ($@) {
warn ("Unable to load 'redhand.png': $@");
}
else {
$hand->set_position(5, 5);
$rect->set_size($hand->get_width() + 5,
$hand->get_height() + 5);
$group->add($hand);
$hand->show();
}
my $timeline = Clutter::Timeline->new(100, 26);
$timeline->set(loop => TRUE);
my $alpha = Clutter::Alpha->new($timeline, sub {
my $alpha = shift;
my $timeline = $alpha->get_timeline();
return int($timeline->get_progress() * Clutter::Alpha->MAX_ALPHA);
});
my $o_behave = Clutter::Behaviour::Opacity->new($alpha, 0x33, 0xff);
$o_behave->apply($group);
my $p_behave
= Clutter::Behaviour::Path->new($alpha,
[ 0, 0 ],
[ 0, 300 ],
[ 300, 300 ],
[ 300, 0 ],
[ 0, 0 ],
);
$p_behave->apply($group);
my $r_behave
= Clutter::Ex::Behaviour::Rotate->new(alpha => $alpha);
$r_behave->apply($group);
$timeline->start();
$stage->show();
Clutter->main();
0;
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