119 lines
4.2 KiB
PHP
119 lines
4.2 KiB
PHP
<?php
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/**
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* GNU social - a federating social network
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*
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* Plugin to handle more kinds of image formats thanks to ImageMagick
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*
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* PHP version 5
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*
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* LICENCE: This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Affero General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Affero General Public License for more details.
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*
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* You should have received a copy of the GNU Affero General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*
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* @category Plugin
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* @package GNUsocial
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* @author Mikael Nordfeldth <mmn@hethane.se>
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* @copyright 2014 Free Software Foundation http://fsf.org
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* @license http://www.fsf.org/licensing/licenses/agpl-3.0.html GNU Affero General Public License version 3.0
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* @link https://www.gnu.org/software/social/
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*/
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if (!defined('GNUSOCIAL')) { exit(1); }
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/*
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* Dependencies:
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* php5-imagick
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*
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* Provides:
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* Animated image support (for image/gif at least)
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*
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* Suggestions:
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* After enabling the ImageMagick plugin, you might want to regenerate
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* thumbnails for the newly support formats. This is easiest done with
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* a script in the GNU social-bundled scripts directory:
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* $ php scripts/clean_thumbnails.php
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*
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* Bugs:
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* Not even ImageMagick is very good at resizing animated GIFs.
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*/
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class ImageMagickPlugin extends Plugin
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{
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// configurable plugin options must be declared public
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public $resize_animated = null;
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public function initialize()
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{
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parent::initialize();
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if (is_null($this->resize_animated)) {
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$this->resize_animated = common_config('image', 'resize_animated');
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}
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}
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/**
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* @param ImageFile $file An ImageFile object we're getting metadata for
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* @param array $info The response from getimagesize()
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*/
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public function onFillImageFileMetadata(ImageFile $imagefile) {
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if (is_null($imagefile->animated) && $imagefile->type === IMAGETYPE_GIF) {
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$magick = new Imagick($imagefile->filepath);
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$magick = $magick->coalesceImages();
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$imagefile->animated = $magick->getNumberImages()>1;
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}
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return true;
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}
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public function onStartResizeImageFile(ImageFile $imagefile, $outpath, array $box) {
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// So far we only take over the resize for IMAGETYPE_GIF
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// (and only animated for gifs!)
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if ($imagefile->type == IMAGETYPE_GIF && $imagefile->animated) {
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if (!$this->resize_animated) {
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// Don't resize if not desired, due to CPU/time limitations
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return false;
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}
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$magick = new Imagick($imagefile->filepath);
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$magick = $magick->coalesceImages();
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$magick->setIteratorIndex(0);
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do {
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$magick->cropImage($box['w'], $box['h'], $box['x'], $box['y']);
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$magick->thumbnailImage($box['width'], $box['height']);
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$magick->setImagePage($box['width'], $box['height'], 0, 0);
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} while ($magick->nextImage());
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$magick = $magick->deconstructImages();
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// $magick->writeImages($outpath, true); did not work, had to use filehandle
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// There's been bugs for writeImages in php5-imagick before, probably now too
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$fh = fopen($outpath, 'w+');
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$success = $magick->writeImagesFile($fh);
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fclose($fh);
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return !$success;
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}
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return true;
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}
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public function onPluginVersion(&$versions)
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{
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$versions[] = array('name' => 'ImageMagick',
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'version' => GNUSOCIAL_VERSION,
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'author' => 'Mikael Nordfeldth',
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'homepage' => 'http://gnu.io/social',
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'rawdescription' =>
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// TRANS: Plugin description.
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_m('Use ImageMagick for better image support.'));
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return true;
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}
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}
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