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<?php
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/* For licensing terms, see /license.txt */
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/**
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* @author Patrick Cool
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* @package ghamilo.document
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* @todo convert comments to be understandable to phpDocumentor
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*/
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/*
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Developped by Patrick Cool
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patrick.cool@UGent.be
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Ghent University
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Mai 2004
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http://icto.UGent.be
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Please bear in mind that this is only an alpha release.
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I wrote this quite quick and didn't think too much about it in advance.
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It is not perfect at all but it is workable and usefull (I think)
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Do not consider this as a powerpoint replacement, although it has
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the same starting point.
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*/
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/*
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Description:
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This is a plugin for the documents tool. It looks for .jpg, .jpeg, .gif, .png
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files (since these are the files that can be viewed in a browser) and creates
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a slideshow with it by allowing to go to the next/previous image.
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You can also have a quick overview (thumbnail view) of all the images in
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that particular folder.
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Maybe it is important to notice that each slideshow is folder based. Only
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the images of the chosen folder are shown.
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This file has two large sections.
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1. code that belongs in document.php, but to avoid clutter I put the code here
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2. the function resize_image that handles the image resizing
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*/
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/**
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* This function calculates the resized width and resized heigt according to the source and target widths
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* and heights, height so that no distortions occur
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* parameters
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* $image = the absolute path to the image
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* $target_width = how large do you want your resized image
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* $target_height = how large do you want your resized image
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* $slideshow (default=0) = indicates weither we are generating images for a slideshow or not, t
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* this overrides the $_SESSION["image_resizing"] a bit so that a thumbnail
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* view is also possible when you choose not to resize the source images
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*/
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function resize_image($image, $target_width, $target_height, $slideshow = 0) {
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// Modifications by Ivan Tcholakov, 04-MAY-2009.
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$result = array();
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if ($_SESSION['image_resizing'] == 'resizing' or $slideshow == 1) {
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$new_sizes = api_resize_image($image, $target_width, $target_height);
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$result[] = $new_sizes['height'];
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$result[] = $new_sizes['width'];
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} else {
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$result[] = $image_height;
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$result[] = $image_width;
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}
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return $result;
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}
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