3 namespace CoreFramework\Image;
5 // Import framework stuff
6 use CoreFramework\Object\BaseFrameworkSystem;
9 * A PNG image generator
11 * @author Roland Haeder <webmaster@shipsimu.org>
13 * @copyright Copyright (c) 2007, 2008 Roland Haeder, 2009 - 2017 Core Developer Team
14 * @license GNU GPL 3.0 or any newer version
15 * @link http://www.shipsimu.org
17 * This program is free software: you can redistribute it and/or modify
18 * it under the terms of the GNU General Public License as published by
19 * the Free Software Foundation, either version 3 of the License, or
20 * (at your option) any later version.
22 * This program is distributed in the hope that it will be useful,
23 * but WITHOUT ANY WARRANTY; without even the implied warranty of
24 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
25 * GNU General Public License for more details.
27 * You should have received a copy of the GNU General Public License
28 * along with this program. If not, see <http://www.gnu.org/licenses/>.
30 class PngImage extends BaseImage {
32 * Protected constructor
36 protected function __construct () {
37 // Call parent constructor
38 parent::__construct(__CLASS__);
42 * Creates an instance of this image class
44 * @param $templateInstance A template instance
45 * @return $imageInstance An instance of this image class
47 public static final function createPngImage(CompileableTemplate $templateInstance) {
49 $imageInstance = new PngImage();
51 // Set template instance
52 $imageInstance->setTemplateInstance($templateInstance);
55 $imageInstance->setImageType('png');
57 // Return the instance
58 return $imageInstance;
62 * Finish this image by producing it
66 public function finishImage () {
68 parent::finishImage();
70 // Get a file name for our image
71 $cacheFile = $this->getTemplateInstance()->getImageCacheFqfn();
74 if (BaseFrameworkSystem::isReadableFile($cacheFile)) {
79 // Finish the image and send it to a cache file
80 imagepng($this->getImageResource(), $cacheFile, 9, PNG_ALL_FILTERS);