ThumbnailUtil.java
8.26 KB
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
/*
* Decompiled with CFR 0_118.
*
* Could not load the following classes:
* com.adobe.granite.asset.api.Asset
* com.adobe.granite.asset.api.Rendition
* com.day.cq.commons.ImageHelper
* com.day.cq.dam.api.thumbnail.ThumbnailConfig
* com.day.cq.dam.commons.thumbnail.ThumbnailConfigImpl
* com.day.cq.dam.commons.util.DamUtil
* com.day.image.Layer
* org.apache.commons.io.FileUtils
* org.apache.commons.io.IOUtils
* org.apache.sling.api.resource.Resource
*/
package com.adobe.aem.formsndocuments.util;
import com.adobe.granite.asset.api.Asset;
import com.adobe.granite.asset.api.Rendition;
import com.day.cq.commons.ImageHelper;
import com.day.cq.dam.api.thumbnail.ThumbnailConfig;
import com.day.cq.dam.commons.thumbnail.ThumbnailConfigImpl;
import com.day.cq.dam.commons.util.DamUtil;
import com.day.image.Layer;
import java.awt.Color;
import java.awt.Paint;
import java.awt.Rectangle;
import java.awt.geom.Rectangle2D;
import java.awt.image.BufferedImage;
import java.awt.image.BufferedImageOp;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.Collection;
import java.util.Collections;
import java.util.Comparator;
import java.util.HashMap;
import java.util.Iterator;
import java.util.Map;
import org.apache.commons.io.FileUtils;
import org.apache.commons.io.IOUtils;
import org.apache.sling.api.resource.Resource;
public class ThumbnailUtil {
private static final String RENDITION_TO_CREATE_THUMBNAIL = "cq5dam.thumbnail.319.319.png";
private static final String THUMBNAIL_MIMETYPE = "image/png";
private static final Collection<ThumbnailConfig> thumbnailConfigs;
public static void addThumbnail(Resource res, Iterator<Asset> members) throws IOException {
int width = 319;
int height = 319;
Layer thumbnailLayer = new Layer(width, height, (Paint)Color.WHITE);
ArrayList<Layer> memberLayers = new ArrayList<Layer>();
int assetCount = 0;
while (members.hasNext() && assetCount < 4) {
Asset member = members.next();
Rendition rendition = member.getRendition("cq5dam.thumbnail.319.319.png");
if (rendition == null) continue;
Layer memberLayer = ImageHelper.createLayer((Resource)rendition);
memberLayers.add(memberLayer);
++assetCount;
}
for (int i = 0; i < memberLayers.size(); ++i) {
Layer addedLayer;
if (memberLayers.size() == 1) {
thumbnailLayer = ThumbnailUtil.cropAsset((Layer)memberLayers.get(i), width, height);
continue;
}
if (memberLayers.size() == 2) {
addedLayer = ThumbnailUtil.cropAsset((Layer)memberLayers.get(i), width, height / 2);
int posY = i * (1 + height / 2);
thumbnailLayer.drawImage(addedLayer.getImage(), null, 0, posY);
continue;
}
if (memberLayers.size() <= 2) continue;
addedLayer = ThumbnailUtil.cropAsset((Layer)memberLayers.get(i), width / 2, height / 2);
int posX = i % 2 * (1 + width / 2);
int posY = (i > 1 ? 1 : 0) * (1 + height / 2);
thumbnailLayer.drawImage(addedLayer.getImage(), null, posX, posY);
}
ThumbnailUtil.addThumbnailToAsset(res, thumbnailLayer);
}
public static void addThumbnailToAsset(Resource res, InputStream is) throws IOException {
ThumbnailUtil.addThumbnailToAsset(res, new Layer(is));
}
/*
* WARNING - Removed try catching itself - possible behaviour change.
*/
private static void addThumbnailToAsset(Resource res, Layer thumbnailLayer) throws IOException {
Asset asset = (Asset)res.adaptTo(Asset.class);
BufferedImage image = thumbnailLayer.getImage();
File tmpFile = null;
try {
tmpFile = File.createTempFile("thumbnail", ".tmp");
ArrayList<ThumbnailConfig> cfg = new ArrayList<ThumbnailConfig>(thumbnailConfigs);
Collections.sort(cfg, new Comparator<ThumbnailConfig>(){
@Override
public int compare(ThumbnailConfig o1, ThumbnailConfig o2) {
if (o1.getWidth() == o2.getWidth()) {
return o2.getHeight() - o1.getHeight();
}
return o2.getWidth() - o1.getWidth();
}
});
Layer layer = null;
for (ThumbnailConfig config : cfg) {
if (layer == null || config.getWidth() > layer.getWidth() || config.getHeight() > layer.getHeight()) {
if (layer != null) {
layer.dispose();
}
layer = new Layer(image);
}
Layer tLayer = ThumbnailUtil.createThumb(layer, config);
FileOutputStream out = null;
FileInputStream in = null;
try {
out = FileUtils.openOutputStream((File)tmpFile);
tLayer.write("image/png", 0.8, (OutputStream)out);
IOUtils.closeQuietly((OutputStream)out);
in = FileUtils.openInputStream((File)tmpFile);
HashMap<String, String> rhMap = new HashMap<String, String>();
rhMap.put("rendition.mime", "image/png");
asset.setRendition(DamUtil.getThumbnailName((ThumbnailConfig)config), (InputStream)in, rhMap);
}
finally {
IOUtils.closeQuietly((InputStream)in);
IOUtils.closeQuietly((OutputStream)out);
}
if (tLayer == layer) continue;
tLayer.dispose();
}
}
finally {
FileUtils.deleteQuietly((File)tmpFile);
}
}
private static Layer cropAsset(Layer layer, int width, int height) {
Rectangle cropRect = new Rectangle(0, 0, width, height);
Layer outputLayer = new Layer(width, height, (Paint)Color.WHITE);
Layer cropLayer = layer;
cropLayer.crop((Rectangle2D)cropRect);
outputLayer.merge(cropLayer);
return outputLayer;
}
private static Layer createThumb(Layer layer, ThumbnailConfig config) {
Layer finalLayer = null;
int maxWidth = config.getWidth();
int maxHeight = config.getHeight();
boolean doCenter = config.doCenter();
int width = layer.getWidth();
int height = layer.getHeight();
Color bgColor = layer.getBackgroundColor();
if (height > maxHeight || width > maxWidth) {
int newWidth;
int newHeight;
if (height > width) {
newHeight = maxHeight;
newWidth = width * maxHeight / height;
if (newWidth > maxWidth) {
newWidth = maxWidth;
newHeight = height * maxWidth / width;
}
} else {
newWidth = maxWidth;
newHeight = height * maxWidth / width;
if (newHeight > maxHeight) {
newHeight = maxHeight;
newWidth = width * maxHeight / height;
}
}
layer.resize(newWidth, newHeight, true);
}
if ((layer.getHeight() < maxHeight || layer.getWidth() < maxWidth) && doCenter) {
Color bg = null != bgColor ? bgColor : Color.WHITE;
finalLayer = new Layer(maxWidth, maxHeight, (Paint)bg);
finalLayer.setTransparency(bg);
int y = (maxHeight - layer.getHeight()) / 2;
int x = (maxWidth - layer.getWidth()) / 2;
layer.setX(x);
layer.setY(y);
finalLayer.merge(layer);
}
if (finalLayer == null) {
return layer;
}
return finalLayer;
}
static {
ThumbnailConfigImpl config1 = new ThumbnailConfigImpl(140, 100, false);
ThumbnailConfigImpl config2 = new ThumbnailConfigImpl(48, 48, false);
ThumbnailConfigImpl config3 = new ThumbnailConfigImpl(319, 319, false);
thumbnailConfigs = Arrays.asList(new ThumbnailConfig[]{config1, config2, config3});
}
}