3 * GNU social - a federating social network
5 * Plugin to handle more kinds of image formats thanks to ImageMagick
9 * LICENCE: This program is free software: you can redistribute it and/or modify
10 * it under the terms of the GNU Affero General Public License as published by
11 * the Free Software Foundation, either version 3 of the License, or
12 * (at your option) any later version.
14 * This program is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 * GNU Affero General Public License for more details.
19 * You should have received a copy of the GNU Affero General Public License
20 * along with this program. If not, see <http://www.gnu.org/licenses/>.
24 * @author Mikael Nordfeldth <mmn@hethane.se>
25 * @copyright 2014 Free Software Foundation http://fsf.org
26 * @license http://www.fsf.org/licensing/licenses/agpl-3.0.html GNU Affero General Public License version 3.0
27 * @link https://www.gnu.org/software/social/
30 if (!defined('GNUSOCIAL')) { exit(1); }
37 * Animated GIF resize support
40 * Animated GIF resize requires setting $config['thumbnail']['animated'] = true;
43 * Not even ImageMagick is very good at resizing animated GIFs.
44 * We are not infinitely fast, so resizing animated GIFs is _not_ recommended.
47 class ImageMagickPlugin extends Plugin
50 * @param ImageFile $file An ImageFile object we're getting metadata for
51 * @param array $info The response from getimagesize()
53 public function onFillImageFileMetadata(ImageFile $imagefile) {
54 if (is_null($imagefile->animated) && $imagefile->type === IMAGETYPE_GIF) {
55 $magick = new Imagick($imagefile->filepath);
56 $magick = $magick->coalesceImages();
57 $imagefile->animated = $magick->getNumberImages()>1;
63 public function onStartResizeImageFile(ImageFile $imagefile, $outpath, array $box) {
64 // So far we only take over the resize for IMAGETYPE_GIF
65 // (and only animated for gifs! (and only if we really want to resize the animation!))
66 if ($imagefile->type == IMAGETYPE_GIF && $imagefile->animated && common_config('thumbnail', 'animated')) {
67 $magick = new Imagick($imagefile->filepath);
68 $magick = $magick->coalesceImages();
69 $magick->setIteratorIndex(0);
71 $magick->cropImage($box['w'], $box['h'], $box['x'], $box['y']);
72 $magick->thumbnailImage($box['width'], $box['height']);
73 $magick->setImagePage($box['width'], $box['height'], 0, 0);
74 } while ($magick->nextImage());
75 $magick = $magick->deconstructImages();
77 // $magick->writeImages($outpath, true); did not work, had to use filehandle
78 // There's been bugs for writeImages in php5-imagick before, probably now too
79 $fh = fopen($outpath, 'w+');
80 $success = $magick->writeImagesFile($fh);
88 public function onPluginVersion(&$versions)
90 $versions[] = array('name' => 'ImageMagick',
91 'version' => GNUSOCIAL_VERSION,
92 'author' => 'Mikael Nordfeldth',
93 'homepage' => 'http://gnu.io/social',
95 // TRANS: Plugin description.
96 _m('Use ImageMagick for some more image support.'));