* * @author Julius Härtl * * @license GNU AGPL version 3 or any later version * * This program is free software: you can redistribute it and/or modify * it under the terms of the GNU Affero General Public License as * published by the Free Software Foundation, either version 3 of the * License, or (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU Affero General Public License for more details. * * You should have received a copy of the GNU Affero General Public License * along with this program. If not, see . * */ namespace OCA\Theming; use Imagick; use ImagickPixel; class IconBuilder { /** @var ThemingDefaults */ private $themingDefaults; /** @var Util */ private $util; /** * IconBuilder constructor. * * @param ThemingDefaults $themingDefaults * @param Util $util */ public function __construct( ThemingDefaults $themingDefaults, Util $util ) { $this->themingDefaults = $themingDefaults; $this->util = $util; } /** * @param $app app name * @return string image blob */ public function getFavicon($app) { $icon = $this->renderAppIcon($app); $icon->resizeImage(32, 32, Imagick::FILTER_LANCZOS, 1); $icon->setImageFormat("png24"); $data = $icon->getImageBlob(); $icon->destroy(); return $data; } /** * @param $app app name * @return string image blob */ public function getTouchIcon($app) { $icon = $this->renderAppIcon($app); $icon->setImageFormat("png24"); $data = $icon->getImageBlob(); $icon->destroy(); return $data; } /** * Render app icon on themed background color * fallback to logo * * @param $app app name * @return Imagick */ public function renderAppIcon($app) { $appIcon = $this->util->getAppIcon($app); $color = $this->themingDefaults->getMailHeaderColor(); $mime = mime_content_type($appIcon); // generate background image with rounded corners $background = '' . ''; // resize svg magic as this seems broken in Imagemagick if($mime === "image/svg+xml") { $svg = file_get_contents($appIcon); $tmp = new Imagick(); $tmp->readImageBlob($svg); $x = $tmp->getImageWidth(); $y = $tmp->getImageHeight(); $res = $tmp->getImageResolution(); $tmp->destroy(); // convert svg to resized image $appIconFile = new Imagick(); $resX = (int)(512 * $res['x'] / $x * 2.53); $resY = (int)(512 * $res['y'] / $y * 2.53); $appIconFile->setResolution($resX, $resY); $appIconFile->setBackgroundColor(new ImagickPixel('transparent')); $appIconFile->readImageBlob($svg); } else { $appIconFile = new Imagick(); $appIconFile->setBackgroundColor(new ImagickPixel('transparent')); $appIconFile->readImageBlob(file_get_contents($appIcon)); $appIconFile->scaleImage(512, 512, true); } // offset for icon positioning $border_w = (int)($appIconFile->getImageWidth() * 0.05); $border_h = (int)($appIconFile->getImageHeight() * 0.05); $innerWidth = (int)($appIconFile->getImageWidth() - $border_w * 2); $innerHeight = (int)($appIconFile->getImageHeight() - $border_h * 2); $appIconFile->adaptiveResizeImage($innerWidth, $innerHeight); // center icon $offset_w = 512 / 2 - $innerWidth / 2; $offset_h = 512 / 2 - $innerHeight / 2; $appIconFile->setImageFormat("png24"); $finalIconFile = new Imagick(); $finalIconFile->readImageBlob($background); $finalIconFile->setImageVirtualPixelMethod(Imagick::VIRTUALPIXELMETHOD_TRANSPARENT); $finalIconFile->setImageArtifact('compose:args', "1,0,-0.5,0.5"); $finalIconFile->compositeImage($appIconFile, Imagick::COMPOSITE_ATOP, $offset_w, $offset_h); $finalIconFile->resizeImage(512, 512, Imagick::FILTER_LANCZOS, 1); $appIconFile->destroy(); return $finalIconFile; } }