1 /**
2 * This file Copyright (c) 2013-2018 Magnolia International
3 * Ltd. (http://www.magnolia-cms.com). All rights reserved.
4 *
5 *
6 * This file is dual-licensed under both the Magnolia
7 * Network Agreement and the GNU General Public License.
8 * You may elect to use one or the other of these licenses.
9 *
10 * This file is distributed in the hope that it will be
11 * useful, but AS-IS and WITHOUT ANY WARRANTY; without even the
12 * implied warranty of MERCHANTABILITY or FITNESS FOR A
13 * PARTICULAR PURPOSE, TITLE, or NONINFRINGEMENT.
14 * Redistribution, except as permitted by whichever of the GPL
15 * or MNA you select, is prohibited.
16 *
17 * 1. For the GPL license (GPL), you can redistribute and/or
18 * modify this file under the terms of the GNU General
19 * Public License, Version 3, as published by the Free Software
20 * Foundation. You should have received a copy of the GNU
21 * General Public License, Version 3 along with this program;
22 * if not, write to the Free Software Foundation, Inc., 51
23 * Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
24 *
25 * 2. For the Magnolia Network Agreement (MNA), this file
26 * and the accompanying materials are made available under the
27 * terms of the MNA which accompanies this distribution, and
28 * is available at http://www.magnolia-cms.com/mna.html
29 *
30 * Any modifications to this file must keep this entire header
31 * intact.
32 *
33 */
34 package info.magnolia.ui.mediaeditor.action;
35
36 import info.magnolia.event.EventBus;
37 import info.magnolia.ui.ValueContext;
38 import info.magnolia.ui.mediaeditor.MediaEditorEventBus;
39 import info.magnolia.ui.mediaeditor.action.definition.FlipImageActionDefinition;
40 import info.magnolia.ui.mediaeditor.data.MediaState;
41
42 import java.awt.image.BufferedImage;
43 import java.io.IOException;
44 import java.io.InputStream;
45
46 import javax.imageio.ImageIO;
47 import javax.inject.Named;
48
49 import com.jhlabs.image.FlipFilter;
50
51 /**
52 * Flips the image pixels in either vertical or horizontal direction.
53 */
54 public class FlipImageAction extends InstantMediaEditorAction {
55
56 public FlipImageAction(FlipImageActionDefinition definition,
57 ValueContext<MediaState> valueContext,
58 @Named(MediaEditorEventBus.NAME) EventBus eventBus) {
59 super(definition, valueContext, eventBus);
60 }
61
62 @Override
63 protected InputStream performModification(InputStream stream) throws IOException {
64 final BufferedImage img = ImageIO.read(stream);
65 final FlipFilter flipFilter = new FlipFilter(getDefinition().getFlipHorizontal() ? FlipFilter.FLIP_H : FlipFilter.FLIP_V);
66 return createStreamSource(flipFilter.filter(img, null), DEFAULT_FORMAT);
67 }
68
69 @Override
70 protected FlipImageActionDefinition getDefinition() {
71 return (FlipImageActionDefinition) super.getDefinition();
72 }
73 }