Magnolia Imaging Module 3.4.2-SUPPORT-10161
File BasicResizer.java
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| BasicResizer | 51 | 12 | 21.1% | 3 | 0 |
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| 1 | /** | |
| 2 | * This file Copyright (c) 2009-2018 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.imaging.operations.cropresize.resizers; | |
| 35 | ||
| 36 | import info.magnolia.imaging.operations.cropresize.Coords; | |
| 37 | import info.magnolia.imaging.operations.cropresize.Resizer; | |
| 38 | import info.magnolia.imaging.operations.cropresize.Size; | |
| 39 | ||
| 40 | import java.awt.Graphics2D; | |
| 41 | import java.awt.RenderingHints; | |
| 42 | import java.awt.image.BufferedImage; | |
| 43 | import java.awt.image.ColorModel; | |
| 44 | import java.awt.image.WritableRaster; | |
| 45 | import java.util.HashMap; | |
| 46 | import java.util.Map; | |
| 47 | ||
| 48 | /** | |
| 49 | * Basic implementation of a {@link info.magnolia.imaging.operations.cropresize.Resizer}. | |
| 50 | */ | |
| 51 | public class BasicResizer implements Resizer { | |
| 52 | /** | |
| 53 | * Internal map mapping a name to a corresponding RenderingHints.VALUE_INTERPOLATION_* instance. | |
| 54 | */ | |
| 55 | 1 |  private static final Map<String, Object> INTERPOLATION_HINTS = new HashMap<String, Object>() {{ |
| 56 | 1 | put("nearest_neighbor", RenderingHints.VALUE_INTERPOLATION_NEAREST_NEIGHBOR); |
| 57 | 1 | put("bilinear", RenderingHints.VALUE_INTERPOLATION_BILINEAR); |
| 58 | 1 | put("bicubic", RenderingHints.VALUE_INTERPOLATION_BICUBIC); |
| 59 | }}; | |
| 60 | ||
| 61 | private String interpolation = "bilinear"; | |
| 62 | ||
| 63 | 36 | @Override |
| 64 | public BufferedImage resize(BufferedImage src, Coords srcCoords, Size targetSize) { | |
| 65 | 36 | final ColorModel cm = src.getColorModel(); |
| 66 | 36 | final WritableRaster raster = cm.createCompatibleWritableRaster(targetSize.getWidth(), targetSize.getHeight()); |
| 67 | 35 | final BufferedImage dst = new BufferedImage(cm, raster, cm.isAlphaPremultiplied(), null); |
| 68 | 35 | final Graphics2D g = dst.createGraphics(); |
| 69 | ||
| 70 | 35 | g.setRenderingHint(RenderingHints.KEY_INTERPOLATION, getInterpolationHint()); |
| 71 | ||
| 72 | 35 | g.drawImage(src, 0, 0, targetSize.getWidth(), targetSize.getHeight(), srcCoords.getX1(), srcCoords.getY1(), srcCoords.getX2(), srcCoords.getY2(), null); |
| 73 | 35 | g.dispose(); |
| 74 | 35 | return dst; |
| 75 | } | |
| 76 | ||
| 77 | 41 | protected Object getInterpolationHint() { |
| 78 | 41 | return INTERPOLATION_HINTS.get(interpolation); |
| 79 | } | |
| 80 | ||
| 81 | public String getInterpolation() { |
|
| 82 | return interpolation; | |
| 83 | } | |
| 84 | ||
| 85 | /** | |
| 86 | * One of "nearest_neighbor", "bilinear" or "bicubic". | |
| 87 | * | |
| 88 | * @see #INTERPOLATION_HINTS | |
| 89 | * TODO : make this an enum, when content2bean supports it. | |
| 90 | */ | |
| 91 | public void setInterpolation(String interpolation) { |
|
| 92 | this.interpolation = interpolation; | |
| 93 | } | |
| 94 | } |