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;
20import android.util.Log;
21
22public class AvatarService {
23
24 private static final int FG_COLOR = 0xFFFAFAFA;
25 private static final int TRANSPARENT = 0x00000000;
26
27 private static final String PREFIX_CONTACT = "contact";
28 private static final String PREFIX_CONVERSATION = "conversation";
29 private static final String PREFIX_ACCOUNT = "account";
30 private static final String PREFIX_GENERIC = "generic";
31
32 private ArrayList<Integer> sizes = new ArrayList<Integer>();
33
34 protected XmppConnectionService mXmppConnectionService = null;
35
36 public AvatarService(XmppConnectionService service) {
37 this.mXmppConnectionService = service;
38 }
39
40 public Bitmap get(Contact contact, int size) {
41 final String KEY = key(contact, size);
42 Bitmap avatar = this.mXmppConnectionService.getBitmapCache().get(KEY);
43 if (avatar != null) {
44 return avatar;
45 }
46 Log.d(Config.LOGTAG, "no cache hit for " + KEY);
47 avatar = mXmppConnectionService.getFileBackend().getAvatar(
48 contact.getAvatar(), size);
49 if (avatar == null) {
50 if (contact.getProfilePhoto() != null) {
51 avatar = mXmppConnectionService.getFileBackend()
52 .cropCenterSquare(Uri.parse(contact.getProfilePhoto()),
53 size);
54 if (avatar == null) {
55 avatar = get(contact.getDisplayName(), size);
56 }
57 } else {
58 avatar = get(contact.getDisplayName(), size);
59 }
60 }
61 this.mXmppConnectionService.getBitmapCache().put(KEY, avatar);
62 return avatar;
63 }
64
65 public void clear(Contact contact) {
66 for (Integer size : sizes) {
67 this.mXmppConnectionService.getBitmapCache().remove(
68 key(contact, size));
69 }
70 }
71
72 private String key(Contact contact, int size) {
73 synchronized (this.sizes) {
74 if (!this.sizes.contains(size)) {
75 this.sizes.add(size);
76 }
77 }
78 return PREFIX_CONTACT + "_" + contact.getAccount().getJid() + "_"
79 + contact.getJid() + "_" + String.valueOf(size);
80 }
81
82 public Bitmap get(ListItem item, int size) {
83 if (item instanceof Contact) {
84 return get((Contact) item, size);
85 } else if (item instanceof Bookmark) {
86 Bookmark bookmark = (Bookmark) item;
87 if (bookmark.getConversation() != null) {
88 return get(bookmark.getConversation(), size);
89 } else {
90 return get(bookmark.getDisplayName(), size);
91 }
92 } else {
93 return get(item.getDisplayName(), size);
94 }
95 }
96
97 public Bitmap get(Conversation conversation, int size) {
98 if (conversation.getMode() == Conversation.MODE_SINGLE) {
99 return get(conversation.getContact(), size);
100 } else {
101 return get(conversation.getMucOptions(), size);
102 }
103 }
104
105 public void clear(Conversation conversation) {
106 if (conversation.getMode() == Conversation.MODE_SINGLE) {
107 clear(conversation.getContact());
108 } else {
109 clear(conversation.getMucOptions());
110 }
111 }
112
113 public Bitmap get(MucOptions mucOptions, int size) {
114 final String KEY = key(mucOptions, size);
115 Bitmap bitmap = this.mXmppConnectionService.getBitmapCache().get(KEY);
116 if (bitmap != null) {
117 return bitmap;
118 }
119 Log.d(Config.LOGTAG, "no cache hit for " + KEY);
120 List<MucOptions.User> users = mucOptions.getUsers();
121 int count = users.size();
122 bitmap = Bitmap.createBitmap(size, size, Bitmap.Config.ARGB_8888);
123 Canvas canvas = new Canvas(bitmap);
124 bitmap.eraseColor(TRANSPARENT);
125
126 if (count == 0) {
127 String name = mucOptions.getConversation().getName();
128 String letter = name.substring(0, 1);
129 int color = this.getColorForName(name);
130 drawTile(canvas, letter, color, 0, 0, size, size);
131 } else if (count == 1) {
132 drawTile(canvas, users.get(0), 0, 0, size, size);
133 } else if (count == 2) {
134 drawTile(canvas, users.get(0), 0, 0, size / 2 - 1, size);
135 drawTile(canvas, users.get(1), size / 2 + 1, 0, size, size);
136 } else if (count == 3) {
137 drawTile(canvas, users.get(0), 0, 0, size / 2 - 1, size);
138 drawTile(canvas, users.get(1), size / 2 + 1, 0, size, size / 2 - 1);
139 drawTile(canvas, users.get(2), size / 2 + 1, size / 2 + 1, size,
140 size);
141 } else if (count == 4) {
142 drawTile(canvas, users.get(0), 0, 0, size / 2 - 1, size / 2 - 1);
143 drawTile(canvas, users.get(1), 0, size / 2 + 1, size / 2 - 1, size);
144 drawTile(canvas, users.get(2), size / 2 + 1, 0, size, size / 2 - 1);
145 drawTile(canvas, users.get(3), size / 2 + 1, size / 2 + 1, size,
146 size);
147 } else {
148 drawTile(canvas, users.get(0), 0, 0, size / 2 - 1, size / 2 - 1);
149 drawTile(canvas, users.get(1), 0, size / 2 + 1, size / 2 - 1, size);
150 drawTile(canvas, users.get(2), size / 2 + 1, 0, size, size / 2 - 1);
151 drawTile(canvas, "\u2026", 0xFF202020, size / 2 + 1, size / 2 + 1,
152 size, size);
153 }
154 this.mXmppConnectionService.getBitmapCache().put(KEY, bitmap);
155 return bitmap;
156 }
157
158 public void clear(MucOptions options) {
159 for (Integer size : sizes) {
160 this.mXmppConnectionService.getBitmapCache().remove(
161 key(options, size));
162 }
163 }
164
165 private String key(MucOptions options, int size) {
166 synchronized (this.sizes) {
167 if (!this.sizes.contains(size)) {
168 this.sizes.add(size);
169 }
170 }
171 return PREFIX_CONVERSATION + "_" + options.getConversation().getUuid()
172 + "_" + String.valueOf(size);
173 }
174
175 public Bitmap get(Account account, int size) {
176 final String KEY = key(account, size);
177 Bitmap avatar = mXmppConnectionService.getBitmapCache().get(KEY);
178 if (avatar != null) {
179 return avatar;
180 }
181 Log.d(Config.LOGTAG, "no cache hit for " + KEY);
182 avatar = mXmppConnectionService.getFileBackend().getAvatar(
183 account.getAvatar(), size);
184 if (avatar == null) {
185 avatar = get(account.getJid(), size);
186 }
187 mXmppConnectionService.getBitmapCache().put(KEY, avatar);
188 return avatar;
189 }
190
191 public void clear(Account account) {
192 for (Integer size : sizes) {
193 this.mXmppConnectionService.getBitmapCache().remove(
194 key(account, size));
195 }
196 }
197
198 private String key(Account account, int size) {
199 synchronized (this.sizes) {
200 if (!this.sizes.contains(size)) {
201 this.sizes.add(size);
202 }
203 }
204 return PREFIX_ACCOUNT + "_" + account.getUuid() + "_"
205 + String.valueOf(size);
206 }
207
208 public Bitmap get(String name, int size) {
209 final String KEY = key(name, size);
210 Bitmap bitmap = mXmppConnectionService.getBitmapCache().get(KEY);
211 if (bitmap != null) {
212 return bitmap;
213 }
214 Log.d(Config.LOGTAG, "no cache hit for " + KEY);
215 bitmap = Bitmap.createBitmap(size, size, Bitmap.Config.ARGB_8888);
216 Canvas canvas = new Canvas(bitmap);
217 String letter = name.substring(0, 1);
218 int color = this.getColorForName(name);
219 drawTile(canvas, letter, color, 0, 0, size, size);
220 mXmppConnectionService.getBitmapCache().put(KEY, bitmap);
221 return bitmap;
222 }
223
224 private String key(String name, int size) {
225 synchronized (this.sizes) {
226 if (!this.sizes.contains(size)) {
227 this.sizes.add(size);
228 }
229 }
230 return PREFIX_GENERIC + "_" + name + "_" + String.valueOf(size);
231 }
232
233 private void drawTile(Canvas canvas, String letter, int tileColor,
234 int left, int top, int right, int bottom) {
235 letter = letter.toUpperCase(Locale.getDefault());
236 Paint tilePaint = new Paint(), textPaint = new Paint();
237 tilePaint.setColor(tileColor);
238 textPaint.setFlags(Paint.ANTI_ALIAS_FLAG);
239 textPaint.setColor(FG_COLOR);
240 textPaint.setTypeface(Typeface.create("sans-serif-light",
241 Typeface.NORMAL));
242 textPaint.setTextSize((float) ((right - left) * 0.8));
243 Rect rect = new Rect();
244
245 canvas.drawRect(new Rect(left, top, right, bottom), tilePaint);
246 textPaint.getTextBounds(letter, 0, 1, rect);
247 float width = textPaint.measureText(letter);
248 canvas.drawText(letter, (right + left) / 2 - width / 2, (top + bottom)
249 / 2 + rect.height() / 2, textPaint);
250 }
251
252 private void drawTile(Canvas canvas, MucOptions.User user, int left,
253 int top, int right, int bottom) {
254 Contact contact = user.getContact();
255 if (contact != null) {
256 Uri uri = null;
257 if (contact.getAvatar() != null) {
258 uri = mXmppConnectionService.getFileBackend().getAvatarUri(
259 contact.getAvatar());
260 } else if (contact.getProfilePhoto() != null) {
261 uri = Uri.parse(contact.getProfilePhoto());
262 }
263 if (uri != null) {
264 Bitmap bitmap = mXmppConnectionService.getFileBackend()
265 .cropCenter(uri, bottom - top, right - left);
266 if (bitmap != null) {
267 drawTile(canvas, bitmap, left, top, right, bottom);
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 } else {
279 String letter = user.getName().substring(0, 1);
280 int color = this.getColorForName(user.getName());
281 drawTile(canvas, letter, color, left, top, right, bottom);
282 }
283 }
284
285 private void drawTile(Canvas canvas, Bitmap bm, int dstleft, int dsttop,
286 int dstright, int dstbottom) {
287 Rect dst = new Rect(dstleft, dsttop, dstright, dstbottom);
288 canvas.drawBitmap(bm, null, dst, null);
289 }
290
291 private int getColorForName(String name) {
292 int holoColors[] = { 0xFFe91e63, 0xFF9c27b0, 0xFF673ab7, 0xFF3f51b5,
293 0xFF5677fc, 0xFF03a9f4, 0xFF00bcd4, 0xFF009688, 0xFFff5722,
294 0xFF795548, 0xFF607d8b };
295 return holoColors[(int) ((name.hashCode() & 0xffffffffl) % holoColors.length)];
296 }
297
298}