1<?php
2/*
3 * Gallery - a web based photo album viewer and editor
4 * Copyright (C) 2000-2008 Bharat Mediratta
5 *
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation; either version 2 of the License, or (at
9 * your option) any later version.
10 *
11 * This program is distributed in the hope that it will be useful, but
12 * WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
14 * General Public License for more details.
15 *
16 * You should have received a copy of the GNU General Public License
17 * along with this program; if not, write to the Free Software
18 * Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, MA  02110-1301, USA.
19 */
20
21/**
22 * This ItemAddOption adds a watermark on movie thumbnails.
23 * @package Ffmpeg
24 * @subpackage UserInterface
25 * @author Alan Harder <alan.harder@sun.com>
26 * @version $Revision: 17580 $
27 */
28class MovieThumbnailOption extends ItemAddOption {
29
30    /**
31     * @see ItemAddOption::isAppropriate
32     */
33    function isAppropriate() {
34	list ($ret, $useWatermark) =
35	    GalleryCoreApi::getPluginParameter('module', 'ffmpeg', 'useWatermark');
36	if ($ret) {
37	    return array($ret, null);
38	}
39	list ($ret, $toolkit) = GalleryCoreApi::getToolkitByOperation('image/jpeg', 'composite');
40	if ($ret) {
41	    return array($ret, null);
42	}
43	return array(null, $useWatermark && isset($toolkit));
44    }
45
46    /**
47     * @see ItemAddOption::handleRequestAfterAdd
48     */
49    function handleRequestAfterAdd($form, $items) {
50	$errors = $warnings = $movieIds = $thumbIds = array();
51	foreach ($items as $item) {
52	    if (GalleryUtilities::isA($item, 'GalleryMovieItem')) {
53		$movieIds[] = $item->getId();
54	    }
55	}
56	if (!empty($movieIds)) {
57	    list ($ret, $thumbTable) = GalleryCoreApi::fetchThumbnailsByItemIds($movieIds);
58	    if ($ret) {
59		return array($ret, null, null);
60	    }
61	    foreach ($thumbTable as $itemId => $thumbnail) {
62		$thumbIds[] = $thumbnail->getId();
63	    }
64	}
65	if (empty($thumbIds)) {
66	    return array(null, $errors, $warnings);
67	}
68	list ($ret, $lockId) = GalleryCoreApi::acquireWriteLock($thumbIds);
69	if ($ret) {
70	    return array($ret, null, null);
71	}
72
73	$op = 'composite|plugins_data/modules/ffmpeg/filmreel.png,image/png,12,399';
74	foreach ($thumbTable as $itemId => $thumbnail) {
75	    list ($ret, $thumbnail) = $thumbnail->refresh();
76	    if ($ret) {
77		GalleryCoreApi::releaseLocks($lockId);
78		return array($ret, null, null);
79	    }
80
81	    /*
82	     * Set operations not postFilter so if this item is selected as an album highlight
83	     * then the highlight will get the watermark too.
84	     */
85	    $operations = $thumbnail->getDerivativeOperations();
86	    $operations .= (empty($operations) ? '' : ';') . "$op,top-left,0,0;$op,top-right,0,0";
87	    $thumbnail->setDerivativeOperations($operations);
88
89	    $ret = $thumbnail->save();
90	    if ($ret) {
91		GalleryCoreApi::releaseLocks($lockId);
92		return array($ret, null, null);
93	    }
94	}
95
96	$ret = GalleryCoreApi::releaseLocks($lockId);
97	if ($ret) {
98	    return array($ret, null, null);
99	}
100
101	return array(null, $errors, $warnings);
102    }
103}
104?>
105