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File: clsThumbnailBrowser.php

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File: clsThumbnailBrowser.php
Role: ???
Content type: text/plain
Description: The source
Class: ThumbnailBrowser
Author: By
Last change:
Date: 21 years ago
Size: 6,069 bytes
 

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<? /* ************************************************************************ * Sloppycode.net All rights reserved. * * This is a standard copyright header for all source code appearing * at sloppycode.net. This application/class/script may be redistributed, * as long as the above copyright remains intact. * Comments to sloppycode@sloppycode.net ************************************************************************ */ /** * @title Thumbnail Browser class - simply image thumbnail viewing system. * @author C.Small * @version 1.0 */ /** * DataProducer class */ class DataProducer { function doDataProducer($startTag,$endTag,$data,$contents) { return $this->privateDataProducer($startTag,$endTag,$data,$contents); } function doSingleDataProducer($data,$contents) { return $this->privateSingleDataProducer($data,$contents); } function openTemplate($filename) { return $this->privateopenTemplate($filename); } function privateDataProducer($startTag,$endTag,$data,$contents) { // Get start and end points $start = strpos($contents,$startTag); $end = strpos($contents,$endTag,$startTag); // Retrieve everything before start tag $prefix = substr($contents,0,$start); $prefix = rtrim($prefix); // Retrieve everything after end tag. Make it starts at the end of end-tag $suffix = substr($contents,$end + strlen($endTag),strlen($contents) - ($end + strlen($endTag))); //$suffix = ltrim($suffix); <-- source formatting screws up? // Retrieve data template. make sure it starts at the end of the start-tag. $dataTemplate = substr($contents,$start + strlen($startTag),$end - ($start + strlen($startTag))); // New method implemented here for ($i=0; $i <= sizeof($data) -1;$i++) { $tempReplace = $dataTemplate; $tempReplace = rtrim($tempReplace); $keys = array_keys($data[$i]); foreach($keys as $keyname) { if (!empty($data[$i][$keyname])) { $tempReplace = str_replace("<".$keyname.">",$data[$i][$keyname],$tempReplace); } else{ $tempReplace = str_replace("<".$keyname.">","",$tempReplace); } } $build .= $tempReplace; } return $prefix . $build . $suffix; } /** * */ function privateSingleDataProducer($data,$contents) { $result = $contents; foreach ($data as $tagname => $value){ $result = str_replace("<".$tagname.">",$value,$result); } return $result; } /** * */ function privateOpenTemplate($filename) { $fHnd = @fopen($filename,"r") or die("<br><b>ShowImages class error: Unable to open template: ".$filename."</b>"); $contents = @fread($fHnd,filesize($filename)) or die("<br><b>Unable to open template: ".$filename."</b>"); fclose($fHnd); return $contents; } } /* -- ----------------------------------------------------------------------------------*/ Class ThumbnailBrowser Extends Dataproducer { // Html templates var $template_thumbnails; var $template_largeimages; // Public var $rowend_html; var $thumbs_per_row; var $query_var; var $enable_imagesizes = false; // Private var $images = array(); // 2 dimensional array, holding thumnail and large image function addImage($thumbimage,$largeimage) { $this->images[] = array($thumbimage,$largeimage); } function privateGetImageInfo($image) { $result = GetImageSize($image); return array($result[0],$result[1]); } function display() { global $HTTP_GET_VARS; // Make sure 2 vars are set if (empty($this->query_var)) { echo "ThumbnailBrowser class error: query_var variable not set."; } elseif (sizeof($this->images) <1) { echo "ThumbnailBrowser class error: no images set. See addImage() method to add."; } else{ // Display all thumbnails if no get vars $largeimageid = $HTTP_GET_VARS[$this->query_var]; if (empty($largeimageid)) { for ($i=0;$i <= sizeof($this->images) -1;$i++) { ++$n; if ($n == $this->thumbs_per_row) { $tags['rowend_html'] = $this->rowend_html; $n = 0; } else{ $tags['rowend_html'] = ""; } if ($this->enable_imagesizes) { $sizethumb = $this->privateGetImageInfo($this->images[$i][0]); $sizelarge = $this->privateGetImageInfo($this->images[$i][1]); $tags['thumbimagewidth'] = $sizethumb[0]; $tags['thumbimageheight'] = $sizethumb[1]; $tags['largeimagewidth'] = $sizelarge[0]; $tags['largeimageheight'] = $sizelarge[1]; } else{ $tags['thumbimagewidth'] = ""; $tags['thumbimageheight'] = ""; $tags['largeimagewidth'] = ""; $tags['largeimageheight'] = ""; } $tags['imagesrc'] = $this->images[$i][0]; $tags['imageid'] = $i +1; $rows[] = $tags; unset($tags); } $contents = $this->openTemplate($this->template_thumbnails); $contents = $this->doDataProducer("<thumbnails>","</thumbnails>",$rows,$contents); echo $contents; } elseif (!empty($largeimageid)){ // Display large image $tags['largeimage'] = $this->images[$largeimageid -1][1]; if ($this->enable_imagesizes) { $sizethumb = $this->privateGetImageInfo($this->images[$largeimageid -1][0]); $sizelarge = $this->privateGetImageInfo($this->images[$largeimageid -1][1]); $tags['thumbimagewidth'] = $sizethumb[0]; $tags['thumbimageheight'] = $sizethumb[1]; $tags['largeimagewidth'] = $sizelarge[0]; $tags['largeimageheight'] = $sizelarge[1]; } else{ $tags['thumbimagewidth'] = ""; $tags['thumbimageheight'] = ""; $tags['largeimagewidth'] = ""; $tags['largeimageheight'] = ""; } $contents = $this->openTemplate($this->template_largeimages); $contents = $this->doSingleDataProducer($tags,$contents); echo $contents; } } } } ?>