Extension:ImageFooter
From MediaWiki.org
 Release status: beta |
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| Description | Adds a text footer at the bottom of the image uploaded | ||
| Author(s) | VolodyA! V Anarhist (Beta_MTalk) | ||
| Last Version | '0.1' | ||
| License | GPL v 3 | ||
| Download | no link | ||
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check usage (experimental) |
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Contents |
[edit] What can this extension do?
The intent of this extension is to add the footer to every uploaded image (only image types supported by GD will actually work do that).
[edit] Usage
[edit] Download instructions
Please cut and paste the code found below and place it in $IP/extensions/ImageFooter/ImageFooter.php. Note: $IP stands for the root directory of your MediaWiki installation, the same directory that holds LocalSettings.php. Search the web for the font FreeSansBold.ttf and upload it in $IP/extensions/ImageFooter/
[edit] Installation
To install this extension, add the following to LocalSettings.php:
require_once( "$IP/extensions/ImageFooter/ImageFooter.php" ); $wgImageFooterString='Some string'; // what string will be written on the image $wgImageFooterOffset= array('up' => 9, 'left' => 180); // offset from the bottom right corner
[edit] Configuration parameters
- $wgImageFooterString – this is any string which will be written onto the image. Default is equivalent to $wgSitename.
- $wgImageFooterOffest – this is an array of 2 elements 'up' and 'left' specifying the offset from the bottom right corner of the image to start writing the string.
[edit] Code
<?php // Released under GPLv3 if ( ! defined( 'MEDIAWIKI' ) ) die(); if ( is_null($wgImageFooterString) || $wgImageFooterString=='' ) $wgImageFooterString=$wgSitename; // Setting up information for Special:Version page $wgExtensionCredits['media'][] = array( 'name' => 'Image Footer', 'author' =>'VolodyA! V Anarhist', 'url' => 'http://eng.anarchopedia.org/User:Beta_M', 'version' => '0.1', 'description' => 'Adds a footer to every image that is uploaded.' ); $wgHooks['UploadVerification'][] = array('fnImageFooterHook1'); function fnImageFooterHook1($saveName, $tempName, &$error) { global $IP, $wgImageFooterString, $wgImageFooterOffset; echo $wgImageFooterOffset['left']; if(list($width, $height, $type, $attr) = getimagesize($tempName)) { if(!imagecreatefromtype($tempName, $type, $img)) { $error = 'Unable to open the file in ImageFooter extension, type is '.$type.' img is '.$img; return false; } $black = imagecolorallocate($img, 0, 0, 0); imagettftext($img, 12, 0, $width-$wgImageFooterOffset['left'], $height-$wgImageFooterOffset['up'], $black, $IP.'/extensions/ImageFooter/FreeSansBold.ttf', $wgImageFooterString); unlink($tempName); if(file_exists($tempName)) { $error = 'File '.$tempName.' exists'; return false; } if(!imagesavebytype($img, $tempName, $type)) { $error = 'Error saving file'; return false; } } else // probably not even an image { return true; } return true; } // opens an image regardless of the type function imagecreatefromtype($file, $type, &$img) { switch($type) { case IMG_GIF: // gif $img = imagecreatefromgif($file); break; case IMG_JPG: // jpeg $img = imagecreatefromjpeg($file); break; case IMG_PNG: // png $img = imagecreatefrompng($file); break; case IMG_WBMP:// wbmp $img = imagecreatefromwbmp($file); break; case IMG_XPM:// xbm $img = imagecreatefromxbm($file); break; default: return false; break; // for posterity only } return true; } // saves an image regardless of the type function imagesavebytype($img, $file, $type) { switch($type) { case IMG_GIF: // gif return imagegif($img, $file); case IMG_JPG: // jpeg return imagejpeg($img, $file); case IMG_PNG: // png return imagepng($img, $file); case IMG_WBMP:// wbmp return imagewbmp($img, $file); case IMG_XPM:// xbm return imagexbm($img, $file); } return false; }
