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https://github.com/EGroupware/egroupware.git
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91 lines
2.0 KiB
PHP
Executable File
91 lines
2.0 KiB
PHP
Executable File
<?php
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/***********************************************************************
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** Title.........: Thumbnail generator, with cache.
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** Version.......: 1.0
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** Author........: Xiang Wei ZHUO <wei@zhuo.org>
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** Filename......: thumbs.php
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** Last changed..: 1 Mar 2003
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** Notes.........: Configuration in config.inc.php
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- if the thumbnail does not exists or the source
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file is newer, create a new thumbnail.
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***********************************************************************/
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include 'config.inc.php';
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require_once '../ImageEditor/Transform.php';
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$img = $BASE_DIR.urldecode($_GET['img']);
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if(is_file($img)) {
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make_thumbs(urldecode($_GET['img']));
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}
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function make_thumbs($img)
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{
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global $BASE_DIR, $BASE_URL;
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$path_info = pathinfo($img);
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$path = $path_info['dirname']."/";
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$img_file = $path_info['basename'];
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$thumb = $path.'.'.$img_file;
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$img_info = getimagesize($BASE_DIR.$path.$img_file);
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$w = $img_info[0]; $h = $img_info[1];
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$nw = 96; $nh = 96;
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if($w <= $nw && $h <= $nh) {
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header('Location: '.$BASE_URL.$path.$img_file);
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exit();
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}
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if(is_file($BASE_DIR.$thumb)) {
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$t_mtime = filemtime($BASE_DIR.$thumb);
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$o_mtime = filemtime($BASE_DIR.$img);
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if($t_mtime > $o_mtime) {
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//echo $BASE_URL.$path.'.'.$img_file;
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header('Location: '.$BASE_URL.$path.'.'.$img_file);
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exit();
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}
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}
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$img_thumbs = Image_Transform::factory(IMAGE_CLASS);
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$img_thumbs->load($BASE_DIR.$path.$img_file);
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if ($w > $h)
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$nh = unpercent(percent($nw, $w), $h);
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else if ($h > $w)
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$nw = unpercent(percent($nh, $h), $w);
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$img_thumbs->resize($nw, $nh);
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$img_thumbs->save($BASE_DIR.$thumb);
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$img_thumbs->free();
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chmod($BASE_DIR.$thumb, 0666);
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if(is_file($BASE_DIR.$thumb)) {
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//echo "Made:".$BASE_URL.$path.'.'.$img_file;
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header('Location: '.$BASE_URL.$path.'.'.$img_file);
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exit();
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}
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}
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function percent($p, $w)
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{
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return (real)(100 * ($p / $w));
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}
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function unpercent($percent, $whole)
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{
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return (real)(($percent * $whole) / 100);
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}
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?>
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