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320 lines
9.4 KiB
320 lines
9.4 KiB
<?php
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// $Id: slideshow.php 9972 2006-11-14 14:44:37Z pcool $
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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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* @author Patrick Cool
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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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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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/*
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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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Each slideshow is folder based. Only the images of the chosen folder are shown.
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==============================================================================
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*/
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// including the language file
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$langFile = "slideshow";
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include ('../inc/global.inc.php');
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$noPHP_SELF = true;
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$path = $_GET['curdirpath'];
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$pathurl = urlencode($path);
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$slide_id = $_GET['slide_id'];
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if ($path and $path <> "")
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{
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$folder = $path."/";
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}
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else
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{
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$folder = "";
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}
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$sys_course_path = api_get_path(SYS_COURSE_PATH);
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// including the functions for the slideshow
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include ('slideshow.inc.php');
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// breadcrumb navigation
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$url = "document.php?curdirpath=".$pathurl;
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$originaltoolname = get_lang('Documents');
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$interbreadcrumb[] = array ("url" => $url, "name" => $originaltoolname);
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// because $nametools uses $_SERVER['PHP_SELF'] for the breadcrumbs instead of $_SERVER['REQUEST_URI'], I had to
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// bypass the $nametools thing and use <b></b> tags in the $interbreadcrump array
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$url = "slideshow.php?curdirpath=".$pathurl;
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$originaltoolname = get_lang('Slideshow');
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//$interbreadcrumb[]= array ("url"=>$url, "name"=>$originaltoolname );
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Display :: display_header($originaltoolname, "Doc");
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// loading the slides from the session
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$image_files_only = $_SESSION["image_files_only"];
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// calculating the current slide, next slide, previous slide and the number of slides
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if ($slide_id <> "all")
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{
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if ($slide_id)
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{
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$slide = $slide_id;
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}
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else
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{
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$slide = 0;
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}
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$previous_slide = $slide -1;
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$next_slide = $slide +1;
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} // if ($slide_id<>"all")
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$total_slides = count($image_files_only);
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?>
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<script language="JavaScript" type="text/JavaScript">
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<!--
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function MM_openBrWindow(theURL,winName,features) { //v2.0
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window.open(theURL,winName,features);
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}
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//-->
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</script>
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<p></p>
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<h3 style="margin-top: 0; margin-bottom: 0"><?php echo get_lang('_slideshow'); ?></h3>
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<table width="100%" border="0" cellspacing="0" cellpadding="2">
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<tr>
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<td>
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<?php
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if ($slide > 0)
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{
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echo "<a href='slideshow.php?slide_id=".$previous_slide."&curdirpath=$pathurl'>";
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}
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?>
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<strong><< <?php echo get_lang('_previous_slide'); ?></strong> <?php
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if ($slide > 0)
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{
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echo "</a>";
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}
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?>
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<?php
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if ($slide < $total_slides -1 and $slide_id <> "all")
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{
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echo "<a href='slideshow.php?slide_id=".$next_slide."&curdirpath=$pathurl'>";
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}
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?>
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<strong><?php echo get_lang('_next_slide'); ?> >></strong>
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<?php
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if ($slide > 0)
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{
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echo "</a>";
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}
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?>
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</td>
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<td>
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<?php
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if ($slide_id <> "all")
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{
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echo get_lang('_image')." ".$next_slide." ".get_lang('_of')." ".$total_slides;
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}
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?>
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</td>
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<td align="right"><a href="document.php?action=exit_slideshow&curdirpath=<?php echo $pathurl;?>"><?php echo get_lang('_exit_slideshow');?></a> </td>
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</tr>
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<tr>
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<td>
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<?php
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if ($slide_id <> "all")
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{
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echo "<a href='slideshow.php?slide_id=all&curdirpath=".$pathurl."'>".get_lang('_show_thumbnails')."</a>";
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}
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else
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{
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echo get_lang('_click_thumbnails');
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}
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$image = $sys_course_path.$_course['path']."/document/".$folder.$image_files_only[$slide];
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// EXIF DATA, remove "and 0==1" in the if statement if you want to display the EXIT data in a popup
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//if (exif_read_data($image))
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// {
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// $_SESSION["exif_image"]=$image;
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//
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// echo "| <a href='#' onClick='MM_openBrWindow('exifinfo.php?image=".$slide."&path=".$path."','exifinfo','scrollbars=yes,resizable=yes,width=500,height=400')'>Show Exif metadata</a>";
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// }
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?>
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</td>
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<td><?php echo htmlspecialchars($image_files_only[$slide]) ?></td>
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<td align="right"><a href="slideshowoptions.php?curdirpath=<?php echo $pathurl; ?>"><?php echo get_lang('_set_slideshow_options');?></a></td>
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</tr>
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</table>
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<?php
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// =======================================================================
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// TREATING THE POST DATA FROM SLIDESHOW OPTIONS
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// =======================================================================
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// if we come from slideshowoptions.php we sessionize (new word !!! ;-) the options
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if (isset ($_POST['Submit'])) // we come from slideshowoptions.php
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{
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$_SESSION["image_resizing"] = $_POST['radio_resizing'];
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if ($_POST['radio_resizing'] == "resizing" && $_POST['width'] != '' && $_POST['height'] != '')
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{
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//echo "resizing";
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$_SESSION["image_resizing_width"] = $_POST['width'];
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$_SESSION["image_resizing_height"] = $_POST['height'];
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}
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else
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{
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//echo "unsetting the session heighte and width";
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$_SESSION["image_resizing_width"] = null;
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$_SESSION["image_resizing_height"] = null;
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}
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} // if ($submit)
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// The target height and width depends if we choose resizing or no resizing
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if ($_SESSION["image_resizing"] == "resizing")
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{
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$target_width = $_SESSION["image_resizing_width"];
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$target_height = $_SESSION["image_resizing_height"];
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}
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else
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{
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$image_width = $source_width;
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$image_height = $source_height;
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}
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// =======================================================================
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// THUMBNAIL VIEW
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// =======================================================================
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// this is for viewing all the images in the slideshow as thumbnails.
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$image_tag = array ();
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if ($slide_id == "all")
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{
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$thumbnail_width = 100;
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$thumbnail_height = 100;
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$row_items = 4;
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foreach ($image_files_only as $one_image_file)
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{
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$image = $sys_course_path.$_course['path']."/document/".$folder.$one_image_file;
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$image_height_width = resize_image($image, $thumbnail_width, $thumbnail_height, 1);
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$image_height = $image_height_width[0];
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$image_width = $image_height_width[1];
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if ($path and $path !== "/")
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{
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$doc_url = $path."/".$one_image_file;
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}
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else
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{
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$doc_url = $path.$one_image_file;
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}
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$image_tag[] = "<img src='download.php?doc_url=".$doc_url."' border='0' width='".$image_width."' height='".$image_height."'>";
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} // foreach ($image_files_only as $one_image_file)
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} // if ($slide_id=="all")
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// creating the table
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echo "\n<table align='center'>";
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$i = 0;
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foreach ($image_tag as $image_tag_item)
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{
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// starting new table row
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if ($i == 0)
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{
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echo "\n<tr>\n";
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}
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echo "\t<td><a href='slideshow.php?slide_id=".$i."&curdirpath=".$pathurl."'>".$image_tag_item."</a></td>\n";
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if ($i % 3 == 0 and $i !== 0)
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{
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echo "</tr>\n<tr>\n";
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}
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$i ++;
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}
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echo "</table>\n\n";
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// =======================================================================
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// ONE AT A TIME VIEW
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// =======================================================================
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// this is for viewing all the images in the slideshow one at a time.
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if ($slide_id !== "all")
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{
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$image = $sys_course_path.$_course['path']."/document/".$folder.$image_files_only[$slide];
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$image_height_width = resize_image($image, $target_width, $target_height);
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$image_height = $image_height_width[0];
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$image_width = $image_height_width[1];
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if ($_SESSION["image_resizing"] == "resizing")
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{
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$height_width_tags = "width='$image_width' height='$image_height'";
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}
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// showing the comment of the image, Patrick Cool, 8 april 2005
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// this is done really quickly and should be cleaned up a little bit using the API functions
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$tbl_documents = Database::get_course_table(DOCUMENT_TABLE);
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if ($path=='/')
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{
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$pathpart='/';
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}
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else
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{
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$pathpart=$path.'/';
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}
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$sql = "SELECT * FROM $tbl_documents WHERE path='".$pathpart.$image_files_only[$slide]."'";
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$result = api_sql_query($sql,__FILE__,__LINE__);
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$row = mysql_fetch_array($result);
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echo $row['comment'];
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echo "<center><img src='download.php?doc_url=$path/".$image_files_only[$slide]."' border='0' $height_width_tags></center>";
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} // if ($slide_id!=="all")
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Display :: display_footer();
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?>
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