Cees Hek > Data-FormValidator-Filters-Image-0.40 > Data::FormValidator::Filters::Image

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Module Version: 0.40   Source  

NAME ^

Data::FormValidator::Filters::Image - Filter that allows you to shrink incoming image uploads using Data::FormValidator

SYNOPSIS ^

    use Data::FormValidator::Filters::Image qw( image_filter );

    # Build a Data::FormValidator Profile:
    my $my_profile = {
        required => qw( uploaded_image ),
        field_filters => {
            uploaded_image => image_filter(max_width => 800, max_height => 600),
        },
    };

    # Be sure to use a CGI.pm object as the form input
    # when using this filter
    my $q = new CGI;
    my $dfv = Data::FormValidator->check($q,$my_profile);

DESCRIPTION ^

Many users when uploading image files never bother to shrink them down to a reasonable size. Instead of declining the upload because it is too large, this module will shrink the image down to a reasonable size during the form validation stage.

The filter will try to fail gracefully by leaving the upload as is if the image resize operation fails.

FILTERS ^

image_filter( max_width => $width, max_height => $height )

This will create a filter that will reduce the size of an image that is being uploaded so that it is bounded by the width and height provided. The image will be scaled in a way that will not distort or stretch the image.

 example:

 - upload an image that is 800 x 600
 - specify a max width of 100 and max height of 100

 The resulting image will be 100 x 75, since that is the
 largest scaled image we can create that is still within
 the bounds we specified.

SEE ALSO ^

Data::FormValidator

AUTHOR ^

Cees Hek <ceeshek@gmail.com>

CREDITS ^

Thanks to SiteSuite (http://www.sitesuite.com.au) for funding the development of this plugin and for releasing it to the world.

LICENCE AND COPYRIGHT ^

Copyright (c) 2005, SiteSuite. All rights reserved.

This module is free software; you can redistribute it and/or modify it under the same terms as Perl itself.

DISCLAIMER OF WARRANTY ^

BECAUSE THIS SOFTWARE IS LICENSED FREE OF CHARGE, THERE IS NO WARRANTY FOR THE SOFTWARE, TO THE EXTENT PERMITTED BY APPLICABLE LAW. EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT HOLDERS AND/OR OTHER PARTIES PROVIDE THE SOFTWARE "AS IS" WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE SOFTWARE IS WITH YOU. SHOULD THE SOFTWARE PROVE DEFECTIVE, YOU ASSUME THE COST OF ALL NECESSARY SERVICING, REPAIR, OR CORRECTION.

IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MAY MODIFY AND/ORREDISTRIBUTE THE SOFTWARE AS PERMITTED BY THE ABOVE LICENCE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY GENERAL, SPECIAL, INCIDENTAL, ORCONSEQUENTIAL DAMAGES ARISING OUT OF THE USE OR INABILITY TO USE THE SOFTWARE (INCLUDING BUT NOT LIMITED TO LOSS OF DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD PARTIES OR A FAILURE OF THE SOFTWARE TO OPERATE WITH ANY OTHER SOFTWARE), EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES.

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