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;
20import eu.siacs.conversations.utils.UIHelper;
21
22public class AvatarService {
23
24 private static final int FG_COLOR = 0xFFFAFAFA;
25 private static final int TRANSPARENT = 0x00000000;
26 private static final int PLACEHOLDER_COLOR = 0xFF202020;
27
28 private static final String PREFIX_CONTACT = "contact";
29 private static final String PREFIX_CONVERSATION = "conversation";
30 private static final String PREFIX_ACCOUNT = "account";
31 private static final String PREFIX_GENERIC = "generic";
32
33 final private ArrayList<Integer> sizes = new ArrayList<>();
34
35 protected XmppConnectionService mXmppConnectionService = null;
36
37 public AvatarService(XmppConnectionService service) {
38 this.mXmppConnectionService = service;
39 }
40
41 public Bitmap get(final Contact contact, final int size) {
42 final String KEY = key(contact, size);
43 Bitmap avatar = this.mXmppConnectionService.getBitmapCache().get(KEY);
44 if (avatar != null) {
45 return avatar;
46 }
47 if (contact.getProfilePhoto() != null) {
48 avatar = mXmppConnectionService.getFileBackend().cropCenterSquare(Uri.parse(contact.getProfilePhoto()), size);
49 }
50 if (avatar == null && contact.getAvatar() != null) {
51 avatar = mXmppConnectionService.getFileBackend().getAvatar(contact.getAvatar(), size);
52 }
53 if (avatar == null) {
54 avatar = get(contact.getDisplayName(), size);
55 }
56 this.mXmppConnectionService.getBitmapCache().put(KEY, avatar);
57 return avatar;
58 }
59
60 public void clear(Contact contact) {
61 synchronized (this.sizes) {
62 for (Integer size : sizes) {
63 this.mXmppConnectionService.getBitmapCache().remove(
64 key(contact, size));
65 }
66 }
67 }
68
69 private String key(Contact contact, int size) {
70 synchronized (this.sizes) {
71 if (!this.sizes.contains(size)) {
72 this.sizes.add(size);
73 }
74 }
75 return PREFIX_CONTACT + "_" + contact.getAccount().getJid().toBareJid() + "_"
76 + contact.getJid() + "_" + String.valueOf(size);
77 }
78
79 public Bitmap get(ListItem item, int size) {
80 if (item instanceof Contact) {
81 return get((Contact) item, size);
82 } else if (item instanceof Bookmark) {
83 Bookmark bookmark = (Bookmark) item;
84 if (bookmark.getConversation() != null) {
85 return get(bookmark.getConversation(), size);
86 } else {
87 return get(bookmark.getDisplayName(), size);
88 }
89 } else {
90 return get(item.getDisplayName(), size);
91 }
92 }
93
94 public Bitmap get(Conversation conversation, int size) {
95 if (conversation.getMode() == Conversation.MODE_SINGLE) {
96 return get(conversation.getContact(), size);
97 } else {
98 return get(conversation.getMucOptions(), size);
99 }
100 }
101
102 public void clear(Conversation conversation) {
103 if (conversation.getMode() == Conversation.MODE_SINGLE) {
104 clear(conversation.getContact());
105 } else {
106 clear(conversation.getMucOptions());
107 }
108 }
109
110 public Bitmap get(MucOptions mucOptions, int size) {
111 final String KEY = key(mucOptions, size);
112 Bitmap bitmap = this.mXmppConnectionService.getBitmapCache().get(KEY);
113 if (bitmap != null) {
114 return bitmap;
115 }
116 final List<MucOptions.User> users = new ArrayList<>(mucOptions.getUsers());
117 int count = users.size();
118 bitmap = Bitmap.createBitmap(size, size, Bitmap.Config.ARGB_8888);
119 Canvas canvas = new Canvas(bitmap);
120 bitmap.eraseColor(TRANSPARENT);
121
122 if (count == 0) {
123 String name = mucOptions.getConversation().getName();
124 final String letter = name.isEmpty() ? "X" : name.substring(0,1);
125 final int color = UIHelper.getColorForName(name);
126 drawTile(canvas, letter, color, 0, 0, size, size);
127 } else if (count == 1) {
128 drawTile(canvas, users.get(0), 0, 0, size, size);
129 } else if (count == 2) {
130 drawTile(canvas, users.get(0), 0, 0, size / 2 - 1, size);
131 drawTile(canvas, users.get(1), size / 2 + 1, 0, size, size);
132 } else if (count == 3) {
133 drawTile(canvas, users.get(0), 0, 0, size / 2 - 1, size);
134 drawTile(canvas, users.get(1), size / 2 + 1, 0, size, size / 2 - 1);
135 drawTile(canvas, users.get(2), size / 2 + 1, size / 2 + 1, size,
136 size);
137 } else if (count == 4) {
138 drawTile(canvas, users.get(0), 0, 0, size / 2 - 1, size / 2 - 1);
139 drawTile(canvas, users.get(1), 0, size / 2 + 1, size / 2 - 1, size);
140 drawTile(canvas, users.get(2), size / 2 + 1, 0, size, size / 2 - 1);
141 drawTile(canvas, users.get(3), size / 2 + 1, size / 2 + 1, size,
142 size);
143 } else {
144 drawTile(canvas, users.get(0), 0, 0, size / 2 - 1, size / 2 - 1);
145 drawTile(canvas, users.get(1), 0, size / 2 + 1, size / 2 - 1, size);
146 drawTile(canvas, users.get(2), size / 2 + 1, 0, size, size / 2 - 1);
147 drawTile(canvas, "\u2026", PLACEHOLDER_COLOR, size / 2 + 1, size / 2 + 1,
148 size, size);
149 }
150 this.mXmppConnectionService.getBitmapCache().put(KEY, bitmap);
151 return bitmap;
152 }
153
154 public void clear(MucOptions options) {
155 synchronized (this.sizes) {
156 for (Integer size : sizes) {
157 this.mXmppConnectionService.getBitmapCache().remove(
158 key(options, size));
159 }
160 }
161 }
162
163 private String key(MucOptions options, int size) {
164 synchronized (this.sizes) {
165 if (!this.sizes.contains(size)) {
166 this.sizes.add(size);
167 }
168 }
169 return PREFIX_CONVERSATION + "_" + options.getConversation().getUuid()
170 + "_" + String.valueOf(size);
171 }
172
173 public Bitmap get(Account account, int size) {
174 final String KEY = key(account, size);
175 Bitmap avatar = mXmppConnectionService.getBitmapCache().get(KEY);
176 if (avatar != null) {
177 return avatar;
178 }
179 avatar = mXmppConnectionService.getFileBackend().getAvatar(
180 account.getAvatar(), size);
181 if (avatar == null) {
182 avatar = get(account.getJid().toBareJid().toString(), size);
183 }
184 mXmppConnectionService.getBitmapCache().put(KEY, avatar);
185 return avatar;
186 }
187
188 public void clear(Account account) {
189 synchronized (this.sizes) {
190 for (Integer size : sizes) {
191 this.mXmppConnectionService.getBitmapCache().remove(
192 key(account, size));
193 }
194 }
195 }
196
197 private String key(Account account, int size) {
198 synchronized (this.sizes) {
199 if (!this.sizes.contains(size)) {
200 this.sizes.add(size);
201 }
202 }
203 return PREFIX_ACCOUNT + "_" + account.getUuid() + "_"
204 + String.valueOf(size);
205 }
206
207 public Bitmap get(final String name, final int size) {
208 final String KEY = key(name, size);
209 Bitmap bitmap = mXmppConnectionService.getBitmapCache().get(KEY);
210 if (bitmap != null) {
211 return bitmap;
212 }
213 bitmap = Bitmap.createBitmap(size, size, Bitmap.Config.ARGB_8888);
214 Canvas canvas = new Canvas(bitmap);
215 final String letter = name.isEmpty() ? "X" : name.substring(0,1);
216 final int color = UIHelper.getColorForName(name);
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 = contact != null ? contact.getDisplayName() : user.getName();
271 final String letter = name.isEmpty() ? "X" : name.substring(0,1);
272 final int color = UIHelper.getColorForName(name);
273 drawTile(canvas, letter, color, left, top, right, bottom);
274 }
275
276 private void drawTile(Canvas canvas, Bitmap bm, int dstleft, int dsttop,
277 int dstright, int dstbottom) {
278 Rect dst = new Rect(dstleft, dsttop, dstright, dstbottom);
279 canvas.drawBitmap(bm, null, dst, null);
280 }
281
282}