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authorvdigital <vdigital@piwigo.org>2008-05-23 21:05:41 +0000
committervdigital <vdigital@piwigo.org>2008-05-23 21:05:41 +0000
commit77fd1f51a3c5f5a52f72ef8a299fe368228e2285 (patch)
treea67ede42904657ccf3349ecdaef1cec8b8e36ff8 /BSF/include/smarty/libs/plugins/function.html_image.php
parent553727dffacc48e8337c1d141f2a25af359e74b1 (diff)
git-svn-id: http://piwigo.org/svn/trunk@2357 68402e56-0260-453c-a942-63ccdbb3a9ee
Diffstat (limited to 'BSF/include/smarty/libs/plugins/function.html_image.php')
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+<?php
+/**
+ * Smarty plugin
+ * @package Smarty
+ * @subpackage plugins
+ */
+
+
+/**
+ * Smarty {html_image} function plugin
+ *
+ * Type: function<br>
+ * Name: html_image<br>
+ * Date: Feb 24, 2003<br>
+ * Purpose: format HTML tags for the image<br>
+ * Input:<br>
+ * - file = file (and path) of image (required)
+ * - height = image height (optional, default actual height)
+ * - width = image width (optional, default actual width)
+ * - basedir = base directory for absolute paths, default
+ * is environment variable DOCUMENT_ROOT
+ * - path_prefix = prefix for path output (optional, default empty)
+ *
+ * Examples: {html_image file="/images/masthead.gif"}
+ * Output: <img src="/images/masthead.gif" width=400 height=23>
+ * @link http://smarty.php.net/manual/en/language.function.html.image.php {html_image}
+ * (Smarty online manual)
+ * @author Monte Ohrt <monte at ohrt dot com>
+ * @author credits to Duda <duda@big.hu> - wrote first image function
+ * in repository, helped with lots of functionality
+ * @version 1.0
+ * @param array
+ * @param Smarty
+ * @return string
+ * @uses smarty_function_escape_special_chars()
+ */
+function smarty_function_html_image($params, &$smarty)
+{
+ require_once $smarty->_get_plugin_filepath('shared','escape_special_chars');
+
+ $alt = '';
+ $file = '';
+ $height = '';
+ $width = '';
+ $extra = '';
+ $prefix = '';
+ $suffix = '';
+ $path_prefix = '';
+ $server_vars = ($smarty->request_use_auto_globals) ? $_SERVER : $GLOBALS['HTTP_SERVER_VARS'];
+ $basedir = isset($server_vars['DOCUMENT_ROOT']) ? $server_vars['DOCUMENT_ROOT'] : '';
+ foreach($params as $_key => $_val) {
+ switch($_key) {
+ case 'file':
+ case 'height':
+ case 'width':
+ case 'dpi':
+ case 'path_prefix':
+ case 'basedir':
+ $$_key = $_val;
+ break;
+
+ case 'alt':
+ if(!is_array($_val)) {
+ $$_key = smarty_function_escape_special_chars($_val);
+ } else {
+ $smarty->trigger_error("html_image: extra attribute '$_key' cannot be an array", E_USER_NOTICE);
+ }
+ break;
+
+ case 'link':
+ case 'href':
+ $prefix = '<a href="' . $_val . '">';
+ $suffix = '</a>';
+ break;
+
+ default:
+ if(!is_array($_val)) {
+ $extra .= ' '.$_key.'="'.smarty_function_escape_special_chars($_val).'"';
+ } else {
+ $smarty->trigger_error("html_image: extra attribute '$_key' cannot be an array", E_USER_NOTICE);
+ }
+ break;
+ }
+ }
+
+ if (empty($file)) {
+ $smarty->trigger_error("html_image: missing 'file' parameter", E_USER_NOTICE);
+ return;
+ }
+
+ if (substr($file,0,1) == '/') {
+ $_image_path = $basedir . $file;
+ } else {
+ $_image_path = $file;
+ }
+
+ if(!isset($params['width']) || !isset($params['height'])) {
+ if(!$_image_data = @getimagesize($_image_path)) {
+ if(!file_exists($_image_path)) {
+ $smarty->trigger_error("html_image: unable to find '$_image_path'", E_USER_NOTICE);
+ return;
+ } else if(!is_readable($_image_path)) {
+ $smarty->trigger_error("html_image: unable to read '$_image_path'", E_USER_NOTICE);
+ return;
+ } else {
+ $smarty->trigger_error("html_image: '$_image_path' is not a valid image file", E_USER_NOTICE);
+ return;
+ }
+ }
+ if ($smarty->security &&
+ ($_params = array('resource_type' => 'file', 'resource_name' => $_image_path)) &&
+ (require_once(SMARTY_CORE_DIR . 'core.is_secure.php')) &&
+ (!smarty_core_is_secure($_params, $smarty)) ) {
+ $smarty->trigger_error("html_image: (secure) '$_image_path' not in secure directory", E_USER_NOTICE);
+ }
+
+ if(!isset($params['width'])) {
+ $width = $_image_data[0];
+ }
+ if(!isset($params['height'])) {
+ $height = $_image_data[1];
+ }
+
+ }
+
+ if(isset($params['dpi'])) {
+ if(strstr($server_vars['HTTP_USER_AGENT'], 'Mac')) {
+ $dpi_default = 72;
+ } else {
+ $dpi_default = 96;
+ }
+ $_resize = $dpi_default/$params['dpi'];
+ $width = round($width * $_resize);
+ $height = round($height * $_resize);
+ }
+
+ return $prefix . '<img src="'.$path_prefix.$file.'" alt="'.$alt.'" width="'.$width.'" height="'.$height.'"'.$extra.' />' . $suffix;
+}
+
+/* vim: set expandtab: */
+
+?>