/usr/lib/perl5/SWF/Filter.pm is in libswf-perl 1:0.4.4-1.1.
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# Copyright (c) 2008 Klaus Rechert All rights reserved.
# (c) 2009 A.Kleine
# This program is free software; you can redistribute it and/or modify
# it under the same terms as Perl itself.
# ====================================================================
# $Author$
# $Id$
package SWF::Filter;
use SWF ();
$SWF::Filter::VERSION = $SWF::VERSION;
1;
__END__
=head1 NAME
SWF::Filter - SWF filter class
=head1 SYNOPSIS
use SWF::Blur;
use SWF::Shadow;
use SWF::Constants qw(:Filter);
@color= (12,45,99);
$blur = new SWF::Blur(15, 15, 2);
$shadow = new SWF::Shadow(2.5, 12, 2);
$filter = SWF::Filter::newDropShadowFilter( \@color,
$blur, $shadow, SWF_FILTER_MODE_KO);
$displayitem->addFilter( $filter);
=head1 DESCRIPTION
Filter objects are available since player version 8. They can be applied to buttons, movieclips and text instances
by the addFilter() method of SWF::DisplayItem objects. Several types of filters exist. Each of them
has its own method of construction, see below.
=head1 METHODS
=over
=item newDropShadowFilter($colorref, $blur, $shadow, $flags)
Creates a DropShadowFilter object. The object is controlled by color, blur object,
shadow object and flags (SWF_FILTER_MODE_INNER, SWF_FILTER_MODE_KO).
=item newBlurFilter($blur)
Creates a BlurFilter object. The object is controlled by the blur object.
=item newGlowFilter($colorref, $blur, $strength, $flags)
Creates a GlowFilter object, a simple variant of DropShadowFilter.
Use SWF_FILTER_MODE_INNER, SWF_FILTER_MODE_KO as flag values.
=item newBevelFilter($shadow_colorref, $highlight_colorref, $blur, $shadow, $flags)
Just another (complex) variant of DropShadowFilter.
Use SWF_FILTER_MODE_INNER, SWF_FILTER_MODE_KO or
FILTER_MODE_ONTOP as flag values.
=item newGradientGlowFilter($gradient, $blur, $shadow, $flags)
Just another (more complex) variant of DropShadowFilter.
As flag use SWF_FILTER_MODE_INNER, SWF_FILTER_MODE_KO
or SWF_FILTER_MODE_ONTOP .
=item newGradientBevelFilter($gradient, $blur, $shadow, $flags)
Just another (slightly more complex) variant of DropShadowFilter,
extending newBevelFilter() by using a gradient instead of simple colors.
Use SWF_FILTER_MODE_INNER, SWF_FILTER_MODE_KO or FILTER_MODE_ONTOP
as flag values.
=item newColorMatrixFilter($filtermatrix)
The filtermatrix is an object of SWF::FilterMatrix class sized 5 columns x 4 rows
for RGBA values, useful for transformations like color conversion to
greyscale pictures.
=item newConvolutionFilter($filtermatrix, $divisor, $bias, $colorref, $flags)
Another filter for nice picture effects like blur etc.
The filtermatrix is an object of SWF::FilterMatrix class.
As flag use either use SWF_FILTER_FLAG_CLAMP or SWF_FILTER_FLAG_PRESERVE_ALPHA.
=back
=head1 AUTHOR
developers of
ming.sourceforge.net
=head1 SEE ALSO
SWF, SWF::Filter, SWF::Blur, SWF::Shadow, SWG::Gradient, SWF::FilterMatrix, SWF::DisplayItem, SWF::Constants, SWF::MovieClip, SWF::Button
=cut
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