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109 lines
3.9 KiB
109 lines
3.9 KiB
19 years ago
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<?php // $Id: document_slideshow.inc.php 9246 2006-09-25 13:24:53Z bmol $
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/*
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==============================================================================
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Dokeos - elearning and course management software
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Copyright (c) 2004 Dokeos S.A.
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Copyright (c) 2003 Ghent University (UGent)
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Copyright (c) 2001 Universite catholique de Louvain (UCL)
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For a full list of contributors, see "credits.txt".
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The full license can be read in "license.txt".
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This program is free software; you can redistribute it and/or
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modify it under the terms of the GNU General Public License
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as published by the Free Software Foundation; either version 2
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of the License, or (at your option) any later version.
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See the GNU General Public License for more details.
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Contact: Dokeos, 181 rue Royale, B-1000 Brussels, Belgium, info@dokeos.com
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==============================================================================
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*/
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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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* 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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*
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* Each slideshow is folder based. Only
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* the images of the chosen folder are shown.
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*
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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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* (not present) 2. the function resize_image that handles the image resizing
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*
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* @author Patrick Cool, responsible author
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* @author Roan Embrechts, minor cleanup
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* @package dokeos.document
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==============================================================================
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*/
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/*
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==============================================================================
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general code that belongs in document.php
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this code should indeed go in documents.php but since document.php is already a really ugly file with
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too much things in one file , I decided to put the code for document.php here and to include this
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file into document.php
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==============================================================================
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*/
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// resetting the images of the slideshow = destroying the slideshow
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if ($_GET['action']=="exit_slideshow")
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{
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$_SESSION["image_files_only"]=null;
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unset($image_files_only);
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}
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// We check if there are images in this folder by searching the extensions for .jpg, .gif, .png
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// grabbing the list of all the documents of this folder
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//$all_files=$fileList['name'];
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$array_to_search = (is_array($docs_and_folders))?$docs_and_folders:array();
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if(count($array_to_search) > 0) {
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while(list ($key) = each ($array_to_search))
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{
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$all_files[] = basename($array_to_search[$key]['path']);
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//echo basename($array_to_search[$key]['path']).'<br>';
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}
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}
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// storing the extension of all the documents in an array
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// and checking if there is a .jpg, .jpeg, .gif or .png file
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// if this is the case a slideshow can be made.
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$all_extensions=array();
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$image_present=0;
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if ( count($all_files) > 0 )
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{
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foreach ($all_files as $file)
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{
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$slideshow_extension=strrchr($file,".");
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$slideshow_extension=strtolower($slideshow_extension);
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$all_extensions[]=$slideshow_extension;
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if ($slideshow_extension==".jpg" OR $slideshow_extension==".jpeg" OR $slideshow_extension==".gif" or $slideshow_extension==".png")
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{
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$image_present=1;
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$image_files_only[]=$file;
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}
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}
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}
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$_SESSION["image_files_only"]=$image_files_only;
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?>
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