1package eu.siacs.conversations.services;
2
3import android.graphics.Bitmap;
4import android.graphics.Canvas;
5import android.graphics.Paint;
6import android.graphics.Rect;
7import android.graphics.Typeface;
8import android.net.Uri;
9
10import java.util.ArrayList;
11import java.util.List;
12import java.util.Locale;
13
14import eu.siacs.conversations.entities.Account;
15import eu.siacs.conversations.entities.Bookmark;
16import eu.siacs.conversations.entities.Contact;
17import eu.siacs.conversations.entities.Conversation;
18import eu.siacs.conversations.entities.ListItem;
19import eu.siacs.conversations.entities.MucOptions;
20
21public class AvatarService {
22
23 private static final int FG_COLOR = 0xFFFAFAFA;
24 private static final int TRANSPARENT = 0x00000000;
25 private static final int PLACEHOLDER_COLOR = 0xFF202020;
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 if (contact.getProfilePhoto() != null) {
47 avatar = mXmppConnectionService.getFileBackend().cropCenterSquare(Uri.parse(contact.getProfilePhoto()), size);
48 }
49 if (avatar == null && contact.getAvatar() != null) {
50 avatar = mXmppConnectionService.getFileBackend().getAvatar(contact.getAvatar(), size);
51 }
52 if (avatar == null) {
53 avatar = get(contact.getDisplayName(), size);
54 }
55 this.mXmppConnectionService.getBitmapCache().put(KEY, avatar);
56 return avatar;
57 }
58
59 public void clear(Contact contact) {
60 for (Integer size : sizes) {
61 this.mXmppConnectionService.getBitmapCache().remove(
62 key(contact, size));
63 }
64 }
65
66 private String key(Contact contact, int size) {
67 synchronized (this.sizes) {
68 if (!this.sizes.contains(size)) {
69 this.sizes.add(size);
70 }
71 }
72 return PREFIX_CONTACT + "_" + contact.getAccount().getJid() + "_"
73 + contact.getJid() + "_" + String.valueOf(size);
74 }
75
76 public Bitmap get(ListItem item, int size) {
77 if (item instanceof Contact) {
78 return get((Contact) item, size);
79 } else if (item instanceof Bookmark) {
80 Bookmark bookmark = (Bookmark) item;
81 if (bookmark.getConversation() != null) {
82 return get(bookmark.getConversation(), size);
83 } else {
84 return get(bookmark.getDisplayName(), size);
85 }
86 } else {
87 return get(item.getDisplayName(), size);
88 }
89 }
90
91 public Bitmap get(Conversation conversation, int size) {
92 if (conversation.getMode() == Conversation.MODE_SINGLE) {
93 return get(conversation.getContact(), size);
94 } else {
95 return get(conversation.getMucOptions(), size);
96 }
97 }
98
99 public void clear(Conversation conversation) {
100 if (conversation.getMode() == Conversation.MODE_SINGLE) {
101 clear(conversation.getContact());
102 } else {
103 clear(conversation.getMucOptions());
104 }
105 }
106
107 public Bitmap get(MucOptions mucOptions, int size) {
108 final String KEY = key(mucOptions, size);
109 Bitmap bitmap = this.mXmppConnectionService.getBitmapCache().get(KEY);
110 if (bitmap != null) {
111 return bitmap;
112 }
113 List<MucOptions.User> users = mucOptions.getUsers();
114 int count = users.size();
115 bitmap = Bitmap.createBitmap(size, size, Bitmap.Config.ARGB_8888);
116 Canvas canvas = new Canvas(bitmap);
117 bitmap.eraseColor(TRANSPARENT);
118
119 if (count == 0) {
120 String name = mucOptions.getConversation().getName();
121 String letter = name.substring(0, 1);
122 int color = this.getColorForName(name);
123 drawTile(canvas, letter, color, 0, 0, size, size);
124 } else if (count == 1) {
125 drawTile(canvas, users.get(0), 0, 0, size, size);
126 } else if (count == 2) {
127 drawTile(canvas, users.get(0), 0, 0, size / 2 - 1, size);
128 drawTile(canvas, users.get(1), size / 2 + 1, 0, size, size);
129 } else if (count == 3) {
130 drawTile(canvas, users.get(0), 0, 0, size / 2 - 1, size);
131 drawTile(canvas, users.get(1), size / 2 + 1, 0, size, size / 2 - 1);
132 drawTile(canvas, users.get(2), size / 2 + 1, size / 2 + 1, size,
133 size);
134 } else if (count == 4) {
135 drawTile(canvas, users.get(0), 0, 0, size / 2 - 1, size / 2 - 1);
136 drawTile(canvas, users.get(1), 0, size / 2 + 1, size / 2 - 1, size);
137 drawTile(canvas, users.get(2), size / 2 + 1, 0, size, size / 2 - 1);
138 drawTile(canvas, users.get(3), size / 2 + 1, size / 2 + 1, size,
139 size);
140 } else {
141 drawTile(canvas, users.get(0), 0, 0, size / 2 - 1, size / 2 - 1);
142 drawTile(canvas, users.get(1), 0, size / 2 + 1, size / 2 - 1, size);
143 drawTile(canvas, users.get(2), size / 2 + 1, 0, size, size / 2 - 1);
144 drawTile(canvas, "\u2026", PLACEHOLDER_COLOR, size / 2 + 1, size / 2 + 1,
145 size, size);
146 }
147 this.mXmppConnectionService.getBitmapCache().put(KEY, bitmap);
148 return bitmap;
149 }
150
151 public void clear(MucOptions options) {
152 for (Integer size : sizes) {
153 this.mXmppConnectionService.getBitmapCache().remove(
154 key(options, size));
155 }
156 }
157
158 private String key(MucOptions options, int size) {
159 synchronized (this.sizes) {
160 if (!this.sizes.contains(size)) {
161 this.sizes.add(size);
162 }
163 }
164 return PREFIX_CONVERSATION + "_" + options.getConversation().getUuid()
165 + "_" + String.valueOf(size);
166 }
167
168 public Bitmap get(Account account, int size) {
169 final String KEY = key(account, size);
170 Bitmap avatar = mXmppConnectionService.getBitmapCache().get(KEY);
171 if (avatar != null) {
172 return avatar;
173 }
174 avatar = mXmppConnectionService.getFileBackend().getAvatar(
175 account.getAvatar(), size);
176 if (avatar == null) {
177 avatar = get(account.getJid(), size);
178 }
179 mXmppConnectionService.getBitmapCache().put(KEY, avatar);
180 return avatar;
181 }
182
183 public void clear(Account account) {
184 for (Integer size : sizes) {
185 this.mXmppConnectionService.getBitmapCache().remove(
186 key(account, size));
187 }
188 }
189
190 private String key(Account account, int size) {
191 synchronized (this.sizes) {
192 if (!this.sizes.contains(size)) {
193 this.sizes.add(size);
194 }
195 }
196 return PREFIX_ACCOUNT + "_" + account.getUuid() + "_"
197 + String.valueOf(size);
198 }
199
200 public Bitmap get(String name, int size) {
201 final String KEY = key(name, size);
202 Bitmap bitmap = mXmppConnectionService.getBitmapCache().get(KEY);
203 if (bitmap != null) {
204 return bitmap;
205 }
206 bitmap = Bitmap.createBitmap(size, size, Bitmap.Config.ARGB_8888);
207 Canvas canvas = new Canvas(bitmap);
208 String letter;
209 int color;
210 if (name.length() > 0) {
211 letter = name.substring(0, 1);
212 color = this.getColorForName(name);
213 } else {
214 letter = "X";
215 color = PLACEHOLDER_COLOR;
216 }
217 drawTile(canvas, letter, color, 0, 0, size, size);
218 mXmppConnectionService.getBitmapCache().put(KEY, bitmap);
219 return bitmap;
220 }
221
222 private String key(String name, int size) {
223 synchronized (this.sizes) {
224 if (!this.sizes.contains(size)) {
225 this.sizes.add(size);
226 }
227 }
228 return PREFIX_GENERIC + "_" + name + "_" + String.valueOf(size);
229 }
230
231 private void drawTile(Canvas canvas, String letter, int tileColor,
232 int left, int top, int right, int bottom) {
233 letter = letter.toUpperCase(Locale.getDefault());
234 Paint tilePaint = new Paint(), textPaint = new Paint();
235 tilePaint.setColor(tileColor);
236 textPaint.setFlags(Paint.ANTI_ALIAS_FLAG);
237 textPaint.setColor(FG_COLOR);
238 textPaint.setTypeface(Typeface.create("sans-serif-light",
239 Typeface.NORMAL));
240 textPaint.setTextSize((float) ((right - left) * 0.8));
241 Rect rect = new Rect();
242
243 canvas.drawRect(new Rect(left, top, right, bottom), tilePaint);
244 textPaint.getTextBounds(letter, 0, 1, rect);
245 float width = textPaint.measureText(letter);
246 canvas.drawText(letter, (right + left) / 2 - width / 2, (top + bottom)
247 / 2 + rect.height() / 2, textPaint);
248 }
249
250 private void drawTile(Canvas canvas, MucOptions.User user, int left,
251 int top, int right, int bottom) {
252 Contact contact = user.getContact();
253 if (contact != null) {
254 Uri uri = null;
255 if (contact.getProfilePhoto() != null) {
256 uri = Uri.parse(contact.getProfilePhoto());
257 } else if (contact.getAvatar() != null) {
258 uri = mXmppConnectionService.getFileBackend().getAvatarUri(
259 contact.getAvatar());
260 }
261 if (uri != null) {
262 Bitmap bitmap = mXmppConnectionService.getFileBackend()
263 .cropCenter(uri, bottom - top, right - left);
264 if (bitmap != null) {
265 drawTile(canvas, bitmap, left, top, right, bottom);
266 return;
267 }
268 }
269 }
270 String name = user.getName();
271 String letter;
272 int color;
273 if (name.length() > 0) {
274 letter = name.substring(0, 1);
275 color = this.getColorForName(name);
276 } else {
277 letter = "X";
278 color = PLACEHOLDER_COLOR;
279 }
280 drawTile(canvas, letter, color, left, top, right, bottom);
281 }
282
283 private void drawTile(Canvas canvas, Bitmap bm, int dstleft, int dsttop,
284 int dstright, int dstbottom) {
285 Rect dst = new Rect(dstleft, dsttop, dstright, dstbottom);
286 canvas.drawBitmap(bm, null, dst, null);
287 }
288
289 private int getColorForName(String name) {
290 int holoColors[] = {0xFFe91e63, 0xFF9c27b0, 0xFF673ab7, 0xFF3f51b5,
291 0xFF5677fc, 0xFF03a9f4, 0xFF00bcd4, 0xFF009688, 0xFFff5722,
292 0xFF795548, 0xFF607d8b};
293 return holoColors[(int) ((name.hashCode() & 0xffffffffl) % holoColors.length)];
294 }
295
296}