diff options
author | vdigital <vdigital@piwigo.org> | 2008-05-23 21:05:41 +0000 |
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committer | vdigital <vdigital@piwigo.org> | 2008-05-23 21:05:41 +0000 |
commit | 77fd1f51a3c5f5a52f72ef8a299fe368228e2285 (patch) | |
tree | a67ede42904657ccf3349ecdaef1cec8b8e36ff8 /BSF/include/smarty/libs/plugins/function.html_image.php | |
parent | 553727dffacc48e8337c1d141f2a25af359e74b1 (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')
-rw-r--r-- | BSF/include/smarty/libs/plugins/function.html_image.php | 142 |
1 files changed, 142 insertions, 0 deletions
diff --git a/BSF/include/smarty/libs/plugins/function.html_image.php b/BSF/include/smarty/libs/plugins/function.html_image.php new file mode 100644 index 000000000..9abae72ef --- /dev/null +++ b/BSF/include/smarty/libs/plugins/function.html_image.php @@ -0,0 +1,142 @@ +<?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: */ + +?> |