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.IX Title "CGI::Uploader::Transform::ImageMagick 3pm"
.TH CGI::Uploader::Transform::ImageMagick 3pm "2022-06-10" "perl v5.34.0" "User Contributed Perl Documentation"
.\" For nroff, turn off justification.  Always turn off hyphenation; it makes
.\" way too many mistakes in technical documents.
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.nh
.SH "NAME"
CGI::Uploader::Transform::ImageMagick \- generate thumbnails with ImageMagick
.SH "METHODS"
.IX Header "METHODS"
.SS "\fBgen_thumb()\fP"
.IX Subsection "gen_thumb()"
.Vb 1
\&  use CGI::Uploader::Transform::ImageMagick;
.Ve
.PP
As a class method:
.PP
.Vb 5
\& ($thumb_tmp_filename)  = CGI::Uploader::Transform::ImageMagick\->gen_thumb({
\&    filename => $orig_filename,
\&           w => $width,
\&           h => $height
\&    });
.Ve
.PP
Within a CGI::Uploader \f(CW\*(C`spec\*(C'\fR:
.PP
.Vb 3
\&    gen_files => {
\&      my_thumb => gen_thumb({ w => $width, h => $height }),
\&    }
.Ve
.PP
Looking for a different syntax? See \*(L"\s-1BACKWARDS COMPATIBILITY\*(R"\s0
.PP
This function creates a copy of given image file and resizes the copy to the
provided width and height.
.PP
\&\f(CW\*(C`gen_thumb\*(C'\fR can be called as object or class method. As a class method,
there there is no need to call \f(CW\*(C`new()\*(C'\fR before calling this method.
.PP
Graphics::Magick is used as the first choice image service module.
Image::Magick is tried next.
.PP
Input:
.PP
.Vb 3
\&    filename \- filename of source image
\&    w        \- max width of thumbnail
\&    h        \- max height of thumbnail
.Ve
.PP
One or both  of \f(CW\*(C`w\*(C'\fR or \f(CW\*(C`h\*(C'\fR is required.
.PP
Output:
    \- filename of generated tmp file for the thumbnail
    \- the initialized image generation object. (You generally shouldn't need this)
.SH "BACKWARDS COMPATIBILITY"
.IX Header "BACKWARDS COMPATIBILITY"
These older, more awkward syntaxes are still supported:
.PP
As a class method:
.PP
.Vb 4
\& ($thumb_tmp_filename)  = CGI::Uploader::Transform::ImageMagick\->gen_thumb(
\&    $orig_filename,
\&    [ w => $width, h => $height ]
\&    );
.Ve
.PP
In a \f(CW\*(C`CGI::Uploader\*(C'\fR \f(CW\*(C`spec\*(C'\fR:
.PP
\&'my_img_field_name' => {
    transform_method => \e&gen_thumb,
    params => [ w => 100, h => 100 ],
  }
.PP
1;