1package eu.siacs.conversations.services;
2
3import java.util.ArrayList;
4import java.util.List;
5import java.util.Locale;
6
7import eu.siacs.conversations.Config;
8import eu.siacs.conversations.entities.Account;
9import eu.siacs.conversations.entities.Bookmark;
10import eu.siacs.conversations.entities.Contact;
11import eu.siacs.conversations.entities.Conversation;
12import eu.siacs.conversations.entities.ListItem;
13import eu.siacs.conversations.entities.MucOptions;
14import android.graphics.Bitmap;
15import android.graphics.Canvas;
16import android.graphics.Paint;
17import android.graphics.Rect;
18import android.graphics.Typeface;
19import android.net.Uri;
20
21public class AvatarService {
22
23 private static final int FG_COLOR = 0xFFFAFAFA;
24 private static final int TRANSPARENT = 0x00000000;
25
26 private static final String PREFIX_CONTACT = "contact";
27 private static final String PREFIX_CONVERSATION = "conversation";
28 private static final String PREFIX_ACCOUNT = "account";
29 private static final String PREFIX_GENERIC = "generic";
30
31 private ArrayList<Integer> sizes = new ArrayList<Integer>();
32
33 protected XmppConnectionService mXmppConnectionService = null;
34
35 public AvatarService(XmppConnectionService service) {
36 this.mXmppConnectionService = service;
37 }
38
39 public Bitmap get(Contact contact, int size) {
40 final String KEY = key(contact, size);
41 Bitmap avatar = this.mXmppConnectionService.getBitmapCache().get(KEY);
42 if (avatar != null) {
43 return avatar;
44 }
45 avatar = mXmppConnectionService.getFileBackend().getAvatar(
46 contact.getAvatar(), size);
47 if (avatar == null) {
48 if (contact.getProfilePhoto() != null) {
49 avatar = mXmppConnectionService.getFileBackend()
50 .cropCenterSquare(Uri.parse(contact.getProfilePhoto()),
51 size);
52 if (avatar == null) {
53 avatar = get(contact.getDisplayName(), size);
54 }
55 } else {
56 avatar = get(contact.getDisplayName(), size);
57 }
58 }
59 this.mXmppConnectionService.getBitmapCache().put(KEY, avatar);
60 return avatar;
61 }
62
63 public void clear(Contact contact) {
64 for (Integer size : sizes) {
65 this.mXmppConnectionService.getBitmapCache().remove(
66 key(contact, size));
67 }
68 }
69
70 private String key(Contact contact, int size) {
71 synchronized (this.sizes) {
72 if (!this.sizes.contains(size)) {
73 this.sizes.add(size);
74 }
75 }
76 return PREFIX_CONTACT + "_" + contact.getAccount().getJid() + "_"
77 + contact.getJid() + "_" + String.valueOf(size);
78 }
79
80 public Bitmap get(ListItem item, int size) {
81 if (item instanceof Contact) {
82 return get((Contact) item, size);
83 } else if (item instanceof Bookmark) {
84 Bookmark bookmark = (Bookmark) item;
85 if (bookmark.getConversation() != null) {
86 return get(bookmark.getConversation(), size);
87 } else {
88 return get(bookmark.getDisplayName(), size);
89 }
90 } else {
91 return get(item.getDisplayName(), size);
92 }
93 }
94
95 public Bitmap get(Conversation conversation, int size) {
96 if (conversation.getMode() == Conversation.MODE_SINGLE) {
97 return get(conversation.getContact(), size);
98 } else {
99 return get(conversation.getMucOptions(), size);
100 }
101 }
102
103 public void clear(Conversation conversation) {
104 if (conversation.getMode() == Conversation.MODE_SINGLE) {
105 clear(conversation.getContact());
106 } else {
107 clear(conversation.getMucOptions());
108 }
109 }
110
111 public Bitmap get(MucOptions mucOptions, int size) {
112 final String KEY = key(mucOptions, size);
113 Bitmap bitmap = this.mXmppConnectionService.getBitmapCache().get(KEY);
114 if (bitmap != null) {
115 return bitmap;
116 }
117 List<MucOptions.User> users = mucOptions.getUsers();
118 int count = users.size();
119 bitmap = Bitmap.createBitmap(size, size, Bitmap.Config.ARGB_8888);
120 Canvas canvas = new Canvas(bitmap);
121 bitmap.eraseColor(TRANSPARENT);
122
123 if (count == 0) {
124 String name = mucOptions.getConversation().getName();
125 String letter = name.substring(0, 1);
126 int color = this.getColorForName(name);
127 drawTile(canvas, letter, color, 0, 0, size, size);
128 } else if (count == 1) {
129 drawTile(canvas, users.get(0), 0, 0, size, size);
130 } else if (count == 2) {
131 drawTile(canvas, users.get(0), 0, 0, size / 2 - 1, size);
132 drawTile(canvas, users.get(1), size / 2 + 1, 0, size, size);
133 } else if (count == 3) {
134 drawTile(canvas, users.get(0), 0, 0, size / 2 - 1, size);
135 drawTile(canvas, users.get(1), size / 2 + 1, 0, size, size / 2 - 1);
136 drawTile(canvas, users.get(2), size / 2 + 1, size / 2 + 1, size,
137 size);
138 } else if (count == 4) {
139 drawTile(canvas, users.get(0), 0, 0, size / 2 - 1, size / 2 - 1);
140 drawTile(canvas, users.get(1), 0, size / 2 + 1, size / 2 - 1, size);
141 drawTile(canvas, users.get(2), size / 2 + 1, 0, size, size / 2 - 1);
142 drawTile(canvas, users.get(3), size / 2 + 1, size / 2 + 1, size,
143 size);
144 } else {
145 drawTile(canvas, users.get(0), 0, 0, size / 2 - 1, size / 2 - 1);
146 drawTile(canvas, users.get(1), 0, size / 2 + 1, size / 2 - 1, size);
147 drawTile(canvas, users.get(2), size / 2 + 1, 0, size, size / 2 - 1);
148 drawTile(canvas, "\u2026", 0xFF202020, size / 2 + 1, size / 2 + 1,
149 size, size);
150 }
151 this.mXmppConnectionService.getBitmapCache().put(KEY, bitmap);
152 return bitmap;
153 }
154
155 public void clear(MucOptions options) {
156 for (Integer size : sizes) {
157 this.mXmppConnectionService.getBitmapCache().remove(
158 key(options, size));
159 }
160 }
161
162 private String key(MucOptions options, int size) {
163 synchronized (this.sizes) {
164 if (!this.sizes.contains(size)) {
165 this.sizes.add(size);
166 }
167 }
168 return PREFIX_CONVERSATION + "_" + options.getConversation().getUuid()
169 + "_" + String.valueOf(size);
170 }
171
172 public Bitmap get(Account account, int size) {
173 final String KEY = key(account, size);
174 Bitmap avatar = mXmppConnectionService.getBitmapCache().get(KEY);
175 if (avatar != null) {
176 return avatar;
177 }
178 avatar = mXmppConnectionService.getFileBackend().getAvatar(
179 account.getAvatar(), size);
180 if (avatar == null) {
181 avatar = get(account.getJid(), size);
182 }
183 mXmppConnectionService.getBitmapCache().put(KEY, avatar);
184 return avatar;
185 }
186
187 public void clear(Account account) {
188 for (Integer size : sizes) {
189 this.mXmppConnectionService.getBitmapCache().remove(
190 key(account, size));
191 }
192 }
193
194 private String key(Account account, int size) {
195 synchronized (this.sizes) {
196 if (!this.sizes.contains(size)) {
197 this.sizes.add(size);
198 }
199 }
200 return PREFIX_ACCOUNT + "_" + account.getUuid() + "_"
201 + String.valueOf(size);
202 }
203
204 public Bitmap get(String name, int size) {
205 final String KEY = key(name, size);
206 Bitmap bitmap = mXmppConnectionService.getBitmapCache().get(KEY);
207 if (bitmap != null) {
208 return bitmap;
209 }
210 bitmap = Bitmap.createBitmap(size, size, Bitmap.Config.ARGB_8888);
211 Canvas canvas = new Canvas(bitmap);
212 String letter = name.substring(0, 1);
213 int color = this.getColorForName(name);
214 drawTile(canvas, letter, color, 0, 0, size, size);
215 mXmppConnectionService.getBitmapCache().put(KEY, bitmap);
216 return bitmap;
217 }
218
219 private String key(String name, int size) {
220 synchronized (this.sizes) {
221 if (!this.sizes.contains(size)) {
222 this.sizes.add(size);
223 }
224 }
225 return PREFIX_GENERIC + "_" + name + "_" + String.valueOf(size);
226 }
227
228 private void drawTile(Canvas canvas, String letter, int tileColor,
229 int left, int top, int right, int bottom) {
230 letter = letter.toUpperCase(Locale.getDefault());
231 Paint tilePaint = new Paint(), textPaint = new Paint();
232 tilePaint.setColor(tileColor);
233 textPaint.setFlags(Paint.ANTI_ALIAS_FLAG);
234 textPaint.setColor(FG_COLOR);
235 textPaint.setTypeface(Typeface.create("sans-serif-light",
236 Typeface.NORMAL));
237 textPaint.setTextSize((float) ((right - left) * 0.8));
238 Rect rect = new Rect();
239
240 canvas.drawRect(new Rect(left, top, right, bottom), tilePaint);
241 textPaint.getTextBounds(letter, 0, 1, rect);
242 float width = textPaint.measureText(letter);
243 canvas.drawText(letter, (right + left) / 2 - width / 2, (top + bottom)
244 / 2 + rect.height() / 2, textPaint);
245 }
246
247 private void drawTile(Canvas canvas, MucOptions.User user, int left,
248 int top, int right, int bottom) {
249 Contact contact = user.getContact();
250 if (contact != null) {
251 Uri uri = null;
252 if (contact.getAvatar() != null) {
253 uri = mXmppConnectionService.getFileBackend().getAvatarUri(
254 contact.getAvatar());
255 } else if (contact.getProfilePhoto() != null) {
256 uri = Uri.parse(contact.getProfilePhoto());
257 }
258 if (uri != null) {
259 Bitmap bitmap = mXmppConnectionService.getFileBackend()
260 .cropCenter(uri, bottom - top, right - left);
261 if (bitmap != null) {
262 drawTile(canvas, bitmap, left, top, right, bottom);
263 } else {
264 String letter = user.getName().substring(0, 1);
265 int color = this.getColorForName(user.getName());
266 drawTile(canvas, letter, color, left, top, right, bottom);
267 }
268 } else {
269 String letter = user.getName().substring(0, 1);
270 int color = this.getColorForName(user.getName());
271 drawTile(canvas, letter, color, left, top, right, bottom);
272 }
273 } else {
274 String letter = user.getName().substring(0, 1);
275 int color = this.getColorForName(user.getName());
276 drawTile(canvas, letter, color, left, top, right, bottom);
277 }
278 }
279
280 private void drawTile(Canvas canvas, Bitmap bm, int dstleft, int dsttop,
281 int dstright, int dstbottom) {
282 Rect dst = new Rect(dstleft, dsttop, dstright, dstbottom);
283 canvas.drawBitmap(bm, null, dst, null);
284 }
285
286 private int getColorForName(String name) {
287 int holoColors[] = { 0xFFe91e63, 0xFF9c27b0, 0xFF673ab7, 0xFF3f51b5,
288 0xFF5677fc, 0xFF03a9f4, 0xFF00bcd4, 0xFF009688, 0xFFff5722,
289 0xFF795548, 0xFF607d8b };
290 return holoColors[(int) ((name.hashCode() & 0xffffffffl) % holoColors.length)];
291 }
292
293}