21 lines
1.2 KiB
Text
21 lines
1.2 KiB
Text
Image::Size is a library based on the image-sizing code in the wwwimagesize
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script, a tool that analyzes HTML files and adds HEIGHT and WIDTH tags to
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IMG directives. Image::Size has generalized that code to return a raw (X, Y)
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pair, and included wrappers to pre-format that output into either HTML or a
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set of attribute pairs suitable for the CGI.pm library by Lincoln Stein.
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Currently, Image::Size can size images in XPM, XBM, GIF, JPEG and PNG
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formats.
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I did this because my WWW server generates a lot of documents on demand
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rather than keeping them in static files. These documents not only use
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directional icons and buttons, but other graphics to annotate and highlight
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sections of the text. Without size attributes, browsers cannot render the
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text of a page until the image data is loaded and the size known for layout.
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This library enables scripts to size their images at run-time and include
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that as part of the generated HTML. Or for any other utility that uses and
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manipulates graphics. The idea of the basic interface + wrappers is to not
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limit the programmer to a certain data format.
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AUTHORS: Perl module interface by Randy J. Ray <rjray@blackperl.com>,
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original image-sizing code by Alex Knowles <alex@ed.ac.uk> and Andrew Tong
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<werdna@ugcs.caltech.edu>.
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