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
49 public $preview_imageformat = 'PNG'; // Image format strings: http://www.imagemagick.org/script/formats.php#supported
50 public $rasterize_vectors = false; // Whether we want to turn SVG into PNG etc.
53 * @param ImageFile $file An ImageFile object we're getting metadata for
54 * @param array $info The response from getimagesize()
56 public function onFillImageFileMetadata(ImageFile $imagefile) {
57 if (is_null($imagefile->animated) && $imagefile->mimetype === 'image/gif') {
58 $magick = new Imagick($imagefile->filepath);
59 $magick = $magick->coalesceImages();
60 $imagefile->animated = $magick->getNumberImages()>1;
66 public function onStartResizeImageFile(ImageFile $imagefile, $outpath, array $box)
68 switch ($imagefile->mimetype) {
70 // If GIF, then only for animated gifs! (and only if we really want to resize the animation!)
71 if ($imagefile->animated && common_config('thumbnail', 'animated')) {
72 return $this->resizeImageFileAnimatedGif($imagefile, $outpath, $box);
79 protected function resizeImageFileAnimatedGif(ImageFile $imagefile, $outpath, array $box)
81 $magick = new Imagick($imagefile->filepath);
82 $magick = $magick->coalesceImages();
83 $magick->setIteratorIndex(0);
85 $magick->cropImage($box['w'], $box['h'], $box['x'], $box['y']);
86 $magick->thumbnailImage($box['width'], $box['height']);
87 $magick->setImagePage($box['width'], $box['height'], 0, 0);
88 } while ($magick->nextImage());
89 $magick = $magick->deconstructImages();
91 // $magick->writeImages($outpath, true); did not work, had to use filehandle
92 // There's been bugs for writeImages in php5-imagick before, probably now too
93 $fh = fopen($outpath, 'w+');
94 $success = $magick->writeImagesFile($fh);
101 public function onCreateFileImageThumbnailSource(File $file, &$imgPath, $media=null)
103 switch ($file->mimetype) {
104 case 'image/svg+xml':
105 if (!$this->rasterize_vectors) {
106 // ImageMagick seems to be hard to trick into scaling vector graphics...
111 // If we don't know the format, let's try not to mess with anything.
115 $imgPath = tempnam(sys_get_temp_dir(), 'socialthumb-');
116 if (!$this->createImagePreview($file, $imgPath)) {
117 common_debug('Could not create ImageMagick preview of File id=='.$file->id);
125 protected function createImagePreview(File $file, $outpath)
127 $magick = new Imagick($file->getPath());
128 $magick->setImageFormat($this->preview_imageformat);
129 $magick->writeImage($outpath);
132 return getimagesize($outpath); // Verify that we wrote an understandable image.
135 public function onPluginVersion(array &$versions)
137 $versions[] = array('name' => 'ImageMagick',
138 'version' => GNUSOCIAL_VERSION,
139 'author' => 'Mikael Nordfeldth',
140 'homepage' => 'http://gnu.io/social',
142 // TRANS: Plugin description.
143 _m('Use ImageMagick for some more image support.'));