This repository has been archived by the owner on Sep 3, 2023. It is now read-only.
-
Notifications
You must be signed in to change notification settings - Fork 2
/
TextColor.java
697 lines (647 loc) · 29.6 KB
/
TextColor.java
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
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
/*
* This file is part of lanterna (https://github.com/mabe02/lanterna).
*
* lanterna is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
* Copyright (C) 2010-2020 Martin Berglund
*/
package com.anas.jcolorfulconsole.lanterna;
import java.awt.Color;
import java.util.regex.Pattern;
/**
* This is an abstract base class for terminal color definitions. Since there are different ways of specifying terminal
* colors, all with a different range of adoptions, this makes it possible to program an API against an implementation-
* agnostic color definition. Please remember when using colors that not all terminals and terminal emulators supports
* them. The 24-bit color mode is very unsupported, for example, and even the default Linux terminal doesn't support
* the 256-color indexed mode.
*
* @author Martin
*/
public interface TextColor {
/**
* Returns the byte sequence in between CSI and character 'm' that is used to enable this color as the foreground
* color on an ANSI-compatible terminal.
* @return Byte array out data to output in between of CSI and 'm'
*/
byte[] getForegroundSGRSequence();
/**
* Returns the byte sequence in between CSI and character 'm' that is used to enable this color as the background
* color on an ANSI-compatible terminal.
* @return Byte array out data to output in between of CSI and 'm'
*/
byte[] getBackgroundSGRSequence();
/**
* @return Red intensity of this color, from 0 to 255
*/
int getRed() ;
/**
* @return Green intensity of this color, from 0 to 255
*/
int getGreen();
/**
* @return Blue intensity of this color, from 0 to 255
*/
int getBlue();
/**
* Converts this color to an AWT color object, assuming a standard VGA palette.
* @return TextColor as an AWT Color
* @deprecated This adds a runtime dependency to the java.desktop module which isn't declared in the module
* descriptor of lanterna. If you want to call this method, make sure to add it to your module.
*/
@Deprecated
Color toColor();
/**
* This class represent classic ANSI colors that are likely to be very compatible with most terminal
* implementations. It is limited to 8 colors (plus the 'default' color) but as a norm, using bold mode (SGR code)
* will slightly alter the color, giving it a bit brighter tone, so in total this will give you 16 (+1) colors.
* <p>
* For more information, see http://en.wikipedia.org/wiki/File:Ansi.png
*/
enum ANSI implements TextColor {
BLACK(0, 0, 0, 0),
RED(1, 170, 0, 0),
GREEN(2, 0, 170, 0),
YELLOW(3, 170, 85, 0),
BLUE(4, 0, 0, 170),
MAGENTA(5, 170, 0, 170),
CYAN(6, 0, 170, 170),
WHITE(7, 170, 170, 170),
DEFAULT(9, 0, 0, 0),
BLACK_BRIGHT(0, true, 85, 85, 85),
RED_BRIGHT(1, true, 255, 85, 85),
GREEN_BRIGHT(2, true, 85, 255, 85),
YELLOW_BRIGHT(3, true, 255, 255, 85),
BLUE_BRIGHT(4, true, 85, 85, 255),
MAGENTA_BRIGHT(5, true, 255, 85, 255),
CYAN_BRIGHT(6, true, 85, 255, 255),
WHITE_BRIGHT(7, true, 255, 255, 255);
private final boolean bright;
private final int red;
private final int green;
private final int blue;
private final byte[] foregroundSGR;
private final byte[] backgroundSGR;
ANSI(int index, int red, int green, int blue) {
this(index, false, red, green, blue);
}
ANSI(int index, boolean bright, int red, int green, int blue) {
this.bright = bright;
this.red = red;
this.green = green;
this.blue = blue;
foregroundSGR = String.format("%d%d", bright ? 9 : 3, index).getBytes();
backgroundSGR = String.format("%d%d", bright ? 10 : 4, index).getBytes();
}
@Override
public byte[] getForegroundSGRSequence() {
return foregroundSGR.clone();
}
@Override
public byte[] getBackgroundSGRSequence() {
return backgroundSGR.clone();
}
public boolean isBright() {
return bright;
}
@Override
public int getRed() {
return red;
}
@Override
public int getGreen() {
return green;
}
@Override
public int getBlue() {
return blue;
}
@Override
public Color toColor() {
return new Color(getRed(), getGreen(), getBlue());
}
}
/**
* This class represents a color expressed in the indexed XTerm 256 color extension, where each color is defined in a
* lookup-table. All in all, there are 256 codes, but in order to know which one to know you either need to have the
* table at hand, or you can use the two static helper methods which can help you convert from three 8-bit
* RGB values to the closest approximate indexed color number. If you are interested, the 256 index values are
* actually divided like this:<br>
* 0 .. 15 - System colors, same as ANSI, but the actual rendered color depends on the terminal emulators color scheme<br>
* 16 .. 231 - Forms a 6x6x6 RGB color cube<br>
* 232 .. 255 - A gray scale ramp (without black and white endpoints)<br>
* <p>
* Support for indexed colors is somewhat widely adopted, not as much as the ANSI colors (TextColor.ANSI) but more
* than the RGB (TextColor.RGB).
* <p>
* For more details on this, please see <a
* href="https://github.com/robertknight/konsole/blob/master/user-doc/README.moreColors">
* this</a> commit message to Konsole.
*/
class Indexed implements TextColor {
private static final byte[][] COLOR_TABLE = new byte[][] {
//These are the standard 16-color VGA palette entries
{(byte)0,(byte)0,(byte)0 },
{(byte)170,(byte)0,(byte)0 },
{(byte)0,(byte)170,(byte)0 },
{(byte)170,(byte)85,(byte)0 },
{(byte)0,(byte)0,(byte)170 },
{(byte)170,(byte)0,(byte)170 },
{(byte)0,(byte)170,(byte)170 },
{(byte)170,(byte)170,(byte)170 },
{(byte)85,(byte)85,(byte)85 },
{(byte)255,(byte)85,(byte)85 },
{(byte)85,(byte)255,(byte)85 },
{(byte)255,(byte)255,(byte)85 },
{(byte)85,(byte)85,(byte)255 },
{(byte)255,(byte)85,(byte)255 },
{(byte)85,(byte)255,(byte)255 },
{(byte)255,(byte)255,(byte)255 },
//Starting 6x6x6 RGB color cube from 16
{(byte)0x00,(byte)0x00,(byte)0x00 },
{(byte)0x00,(byte)0x00,(byte)0x5f },
{(byte)0x00,(byte)0x00,(byte)0x87 },
{(byte)0x00,(byte)0x00,(byte)0xaf },
{(byte)0x00,(byte)0x00,(byte)0xd7 },
{(byte)0x00,(byte)0x00,(byte)0xff },
{(byte)0x00,(byte)0x5f,(byte)0x00 },
{(byte)0x00,(byte)0x5f,(byte)0x5f },
{(byte)0x00,(byte)0x5f,(byte)0x87 },
{(byte)0x00,(byte)0x5f,(byte)0xaf },
{(byte)0x00,(byte)0x5f,(byte)0xd7 },
{(byte)0x00,(byte)0x5f,(byte)0xff },
{(byte)0x00,(byte)0x87,(byte)0x00 },
{(byte)0x00,(byte)0x87,(byte)0x5f },
{(byte)0x00,(byte)0x87,(byte)0x87 },
{(byte)0x00,(byte)0x87,(byte)0xaf },
{(byte)0x00,(byte)0x87,(byte)0xd7 },
{(byte)0x00,(byte)0x87,(byte)0xff },
{(byte)0x00,(byte)0xaf,(byte)0x00 },
{(byte)0x00,(byte)0xaf,(byte)0x5f },
{(byte)0x00,(byte)0xaf,(byte)0x87 },
{(byte)0x00,(byte)0xaf,(byte)0xaf },
{(byte)0x00,(byte)0xaf,(byte)0xd7 },
{(byte)0x00,(byte)0xaf,(byte)0xff },
{(byte)0x00,(byte)0xd7,(byte)0x00 },
{(byte)0x00,(byte)0xd7,(byte)0x5f },
{(byte)0x00,(byte)0xd7,(byte)0x87 },
{(byte)0x00,(byte)0xd7,(byte)0xaf },
{(byte)0x00,(byte)0xd7,(byte)0xd7 },
{(byte)0x00,(byte)0xd7,(byte)0xff },
{(byte)0x00,(byte)0xff,(byte)0x00 },
{(byte)0x00,(byte)0xff,(byte)0x5f },
{(byte)0x00,(byte)0xff,(byte)0x87 },
{(byte)0x00,(byte)0xff,(byte)0xaf },
{(byte)0x00,(byte)0xff,(byte)0xd7 },
{(byte)0x00,(byte)0xff,(byte)0xff },
{(byte)0x5f,(byte)0x00,(byte)0x00 },
{(byte)0x5f,(byte)0x00,(byte)0x5f },
{(byte)0x5f,(byte)0x00,(byte)0x87 },
{(byte)0x5f,(byte)0x00,(byte)0xaf },
{(byte)0x5f,(byte)0x00,(byte)0xd7 },
{(byte)0x5f,(byte)0x00,(byte)0xff },
{(byte)0x5f,(byte)0x5f,(byte)0x00 },
{(byte)0x5f,(byte)0x5f,(byte)0x5f },
{(byte)0x5f,(byte)0x5f,(byte)0x87 },
{(byte)0x5f,(byte)0x5f,(byte)0xaf },
{(byte)0x5f,(byte)0x5f,(byte)0xd7 },
{(byte)0x5f,(byte)0x5f,(byte)0xff },
{(byte)0x5f,(byte)0x87,(byte)0x00 },
{(byte)0x5f,(byte)0x87,(byte)0x5f },
{(byte)0x5f,(byte)0x87,(byte)0x87 },
{(byte)0x5f,(byte)0x87,(byte)0xaf },
{(byte)0x5f,(byte)0x87,(byte)0xd7 },
{(byte)0x5f,(byte)0x87,(byte)0xff },
{(byte)0x5f,(byte)0xaf,(byte)0x00 },
{(byte)0x5f,(byte)0xaf,(byte)0x5f },
{(byte)0x5f,(byte)0xaf,(byte)0x87 },
{(byte)0x5f,(byte)0xaf,(byte)0xaf },
{(byte)0x5f,(byte)0xaf,(byte)0xd7 },
{(byte)0x5f,(byte)0xaf,(byte)0xff },
{(byte)0x5f,(byte)0xd7,(byte)0x00 },
{(byte)0x5f,(byte)0xd7,(byte)0x5f },
{(byte)0x5f,(byte)0xd7,(byte)0x87 },
{(byte)0x5f,(byte)0xd7,(byte)0xaf },
{(byte)0x5f,(byte)0xd7,(byte)0xd7 },
{(byte)0x5f,(byte)0xd7,(byte)0xff },
{(byte)0x5f,(byte)0xff,(byte)0x00 },
{(byte)0x5f,(byte)0xff,(byte)0x5f },
{(byte)0x5f,(byte)0xff,(byte)0x87 },
{(byte)0x5f,(byte)0xff,(byte)0xaf },
{(byte)0x5f,(byte)0xff,(byte)0xd7 },
{(byte)0x5f,(byte)0xff,(byte)0xff },
{(byte)0x87,(byte)0x00,(byte)0x00 },
{(byte)0x87,(byte)0x00,(byte)0x5f },
{(byte)0x87,(byte)0x00,(byte)0x87 },
{(byte)0x87,(byte)0x00,(byte)0xaf },
{(byte)0x87,(byte)0x00,(byte)0xd7 },
{(byte)0x87,(byte)0x00,(byte)0xff },
{(byte)0x87,(byte)0x5f,(byte)0x00 },
{(byte)0x87,(byte)0x5f,(byte)0x5f },
{(byte)0x87,(byte)0x5f,(byte)0x87 },
{(byte)0x87,(byte)0x5f,(byte)0xaf },
{(byte)0x87,(byte)0x5f,(byte)0xd7 },
{(byte)0x87,(byte)0x5f,(byte)0xff },
{(byte)0x87,(byte)0x87,(byte)0x00 },
{(byte)0x87,(byte)0x87,(byte)0x5f },
{(byte)0x87,(byte)0x87,(byte)0x87 },
{(byte)0x87,(byte)0x87,(byte)0xaf },
{(byte)0x87,(byte)0x87,(byte)0xd7 },
{(byte)0x87,(byte)0x87,(byte)0xff },
{(byte)0x87,(byte)0xaf,(byte)0x00 },
{(byte)0x87,(byte)0xaf,(byte)0x5f },
{(byte)0x87,(byte)0xaf,(byte)0x87 },
{(byte)0x87,(byte)0xaf,(byte)0xaf },
{(byte)0x87,(byte)0xaf,(byte)0xd7 },
{(byte)0x87,(byte)0xaf,(byte)0xff },
{(byte)0x87,(byte)0xd7,(byte)0x00 },
{(byte)0x87,(byte)0xd7,(byte)0x5f },
{(byte)0x87,(byte)0xd7,(byte)0x87 },
{(byte)0x87,(byte)0xd7,(byte)0xaf },
{(byte)0x87,(byte)0xd7,(byte)0xd7 },
{(byte)0x87,(byte)0xd7,(byte)0xff },
{(byte)0x87,(byte)0xff,(byte)0x00 },
{(byte)0x87,(byte)0xff,(byte)0x5f },
{(byte)0x87,(byte)0xff,(byte)0x87 },
{(byte)0x87,(byte)0xff,(byte)0xaf },
{(byte)0x87,(byte)0xff,(byte)0xd7 },
{(byte)0x87,(byte)0xff,(byte)0xff },
{(byte)0xaf,(byte)0x00,(byte)0x00 },
{(byte)0xaf,(byte)0x00,(byte)0x5f },
{(byte)0xaf,(byte)0x00,(byte)0x87 },
{(byte)0xaf,(byte)0x00,(byte)0xaf },
{(byte)0xaf,(byte)0x00,(byte)0xd7 },
{(byte)0xaf,(byte)0x00,(byte)0xff },
{(byte)0xaf,(byte)0x5f,(byte)0x00 },
{(byte)0xaf,(byte)0x5f,(byte)0x5f },
{(byte)0xaf,(byte)0x5f,(byte)0x87 },
{(byte)0xaf,(byte)0x5f,(byte)0xaf },
{(byte)0xaf,(byte)0x5f,(byte)0xd7 },
{(byte)0xaf,(byte)0x5f,(byte)0xff },
{(byte)0xaf,(byte)0x87,(byte)0x00 },
{(byte)0xaf,(byte)0x87,(byte)0x5f },
{(byte)0xaf,(byte)0x87,(byte)0x87 },
{(byte)0xaf,(byte)0x87,(byte)0xaf },
{(byte)0xaf,(byte)0x87,(byte)0xd7 },
{(byte)0xaf,(byte)0x87,(byte)0xff },
{(byte)0xaf,(byte)0xaf,(byte)0x00 },
{(byte)0xaf,(byte)0xaf,(byte)0x5f },
{(byte)0xaf,(byte)0xaf,(byte)0x87 },
{(byte)0xaf,(byte)0xaf,(byte)0xaf },
{(byte)0xaf,(byte)0xaf,(byte)0xd7 },
{(byte)0xaf,(byte)0xaf,(byte)0xff },
{(byte)0xaf,(byte)0xd7,(byte)0x00 },
{(byte)0xaf,(byte)0xd7,(byte)0x5f },
{(byte)0xaf,(byte)0xd7,(byte)0x87 },
{(byte)0xaf,(byte)0xd7,(byte)0xaf },
{(byte)0xaf,(byte)0xd7,(byte)0xd7 },
{(byte)0xaf,(byte)0xd7,(byte)0xff },
{(byte)0xaf,(byte)0xff,(byte)0x00 },
{(byte)0xaf,(byte)0xff,(byte)0x5f },
{(byte)0xaf,(byte)0xff,(byte)0x87 },
{(byte)0xaf,(byte)0xff,(byte)0xaf },
{(byte)0xaf,(byte)0xff,(byte)0xd7 },
{(byte)0xaf,(byte)0xff,(byte)0xff },
{(byte)0xd7,(byte)0x00,(byte)0x00 },
{(byte)0xd7,(byte)0x00,(byte)0x5f },
{(byte)0xd7,(byte)0x00,(byte)0x87 },
{(byte)0xd7,(byte)0x00,(byte)0xaf },
{(byte)0xd7,(byte)0x00,(byte)0xd7 },
{(byte)0xd7,(byte)0x00,(byte)0xff },
{(byte)0xd7,(byte)0x5f,(byte)0x00 },
{(byte)0xd7,(byte)0x5f,(byte)0x5f },
{(byte)0xd7,(byte)0x5f,(byte)0x87 },
{(byte)0xd7,(byte)0x5f,(byte)0xaf },
{(byte)0xd7,(byte)0x5f,(byte)0xd7 },
{(byte)0xd7,(byte)0x5f,(byte)0xff },
{(byte)0xd7,(byte)0x87,(byte)0x00 },
{(byte)0xd7,(byte)0x87,(byte)0x5f },
{(byte)0xd7,(byte)0x87,(byte)0x87 },
{(byte)0xd7,(byte)0x87,(byte)0xaf },
{(byte)0xd7,(byte)0x87,(byte)0xd7 },
{(byte)0xd7,(byte)0x87,(byte)0xff },
{(byte)0xd7,(byte)0xaf,(byte)0x00 },
{(byte)0xd7,(byte)0xaf,(byte)0x5f },
{(byte)0xd7,(byte)0xaf,(byte)0x87 },
{(byte)0xd7,(byte)0xaf,(byte)0xaf },
{(byte)0xd7,(byte)0xaf,(byte)0xd7 },
{(byte)0xd7,(byte)0xaf,(byte)0xff },
{(byte)0xd7,(byte)0xd7,(byte)0x00 },
{(byte)0xd7,(byte)0xd7,(byte)0x5f },
{(byte)0xd7,(byte)0xd7,(byte)0x87 },
{(byte)0xd7,(byte)0xd7,(byte)0xaf },
{(byte)0xd7,(byte)0xd7,(byte)0xd7 },
{(byte)0xd7,(byte)0xd7,(byte)0xff },
{(byte)0xd7,(byte)0xff,(byte)0x00 },
{(byte)0xd7,(byte)0xff,(byte)0x5f },
{(byte)0xd7,(byte)0xff,(byte)0x87 },
{(byte)0xd7,(byte)0xff,(byte)0xaf },
{(byte)0xd7,(byte)0xff,(byte)0xd7 },
{(byte)0xd7,(byte)0xff,(byte)0xff },
{(byte)0xff,(byte)0x00,(byte)0x00 },
{(byte)0xff,(byte)0x00,(byte)0x5f },
{(byte)0xff,(byte)0x00,(byte)0x87 },
{(byte)0xff,(byte)0x00,(byte)0xaf },
{(byte)0xff,(byte)0x00,(byte)0xd7 },
{(byte)0xff,(byte)0x00,(byte)0xff },
{(byte)0xff,(byte)0x5f,(byte)0x00 },
{(byte)0xff,(byte)0x5f,(byte)0x5f },
{(byte)0xff,(byte)0x5f,(byte)0x87 },
{(byte)0xff,(byte)0x5f,(byte)0xaf },
{(byte)0xff,(byte)0x5f,(byte)0xd7 },
{(byte)0xff,(byte)0x5f,(byte)0xff },
{(byte)0xff,(byte)0x87,(byte)0x00 },
{(byte)0xff,(byte)0x87,(byte)0x5f },
{(byte)0xff,(byte)0x87,(byte)0x87 },
{(byte)0xff,(byte)0x87,(byte)0xaf },
{(byte)0xff,(byte)0x87,(byte)0xd7 },
{(byte)0xff,(byte)0x87,(byte)0xff },
{(byte)0xff,(byte)0xaf,(byte)0x00 },
{(byte)0xff,(byte)0xaf,(byte)0x5f },
{(byte)0xff,(byte)0xaf,(byte)0x87 },
{(byte)0xff,(byte)0xaf,(byte)0xaf },
{(byte)0xff,(byte)0xaf,(byte)0xd7 },
{(byte)0xff,(byte)0xaf,(byte)0xff },
{(byte)0xff,(byte)0xd7,(byte)0x00 },
{(byte)0xff,(byte)0xd7,(byte)0x5f },
{(byte)0xff,(byte)0xd7,(byte)0x87 },
{(byte)0xff,(byte)0xd7,(byte)0xaf },
{(byte)0xff,(byte)0xd7,(byte)0xd7 },
{(byte)0xff,(byte)0xd7,(byte)0xff },
{(byte)0xff,(byte)0xff,(byte)0x00 },
{(byte)0xff,(byte)0xff,(byte)0x5f },
{(byte)0xff,(byte)0xff,(byte)0x87 },
{(byte)0xff,(byte)0xff,(byte)0xaf },
{(byte)0xff,(byte)0xff,(byte)0xd7 },
{(byte)0xff,(byte)0xff,(byte)0xff },
//Grey-scale ramp from 232
{(byte)0x08,(byte)0x08,(byte)0x08 },
{(byte)0x12,(byte)0x12,(byte)0x12 },
{(byte)0x1c,(byte)0x1c,(byte)0x1c },
{(byte)0x26,(byte)0x26,(byte)0x26 },
{(byte)0x30,(byte)0x30,(byte)0x30 },
{(byte)0x3a,(byte)0x3a,(byte)0x3a },
{(byte)0x44,(byte)0x44,(byte)0x44 },
{(byte)0x4e,(byte)0x4e,(byte)0x4e },
{(byte)0x58,(byte)0x58,(byte)0x58 },
{(byte)0x62,(byte)0x62,(byte)0x62 },
{(byte)0x6c,(byte)0x6c,(byte)0x6c },
{(byte)0x76,(byte)0x76,(byte)0x76 },
{(byte)0x80,(byte)0x80,(byte)0x80 },
{(byte)0x8a,(byte)0x8a,(byte)0x8a },
{(byte)0x94,(byte)0x94,(byte)0x94 },
{(byte)0x9e,(byte)0x9e,(byte)0x9e },
{(byte)0xa8,(byte)0xa8,(byte)0xa8 },
{(byte)0xb2,(byte)0xb2,(byte)0xb2 },
{(byte)0xbc,(byte)0xbc,(byte)0xbc },
{(byte)0xc6,(byte)0xc6,(byte)0xc6 },
{(byte)0xd0,(byte)0xd0,(byte)0xd0 },
{(byte)0xda,(byte)0xda,(byte)0xda },
{(byte)0xe4,(byte)0xe4,(byte)0xe4 },
{(byte)0xee,(byte)0xee,(byte)0xee }
};
private final int colorIndex;
/**
* Creates a new TextColor using the XTerm 256 color indexed mode, with the specified index value. You must
* choose a value between 0 and 255.
* @param colorIndex Index value to use for this color.
*/
public Indexed(int colorIndex) {
if(colorIndex > 255 || colorIndex < 0) {
throw new IllegalArgumentException("Cannot create a Color.Indexed with a color index of " + colorIndex +
", must be in the range of 0-255");
}
this.colorIndex = colorIndex;
}
@Override
public byte[] getForegroundSGRSequence() {
return ("38;5;" + colorIndex).getBytes();
}
@Override
public byte[] getBackgroundSGRSequence() {
return ("48;5;" + colorIndex).getBytes();
}
@Override
public int getRed() {
return COLOR_TABLE[colorIndex][0] & 0x000000ff;
}
@Override
public int getGreen() {
return COLOR_TABLE[colorIndex][1] & 0x000000ff;
}
@Override
public int getBlue() {
return COLOR_TABLE[colorIndex][2] & 0x000000ff;
}
@Override
public Color toColor() {
return new Color(getRed(), getGreen(), getBlue());
}
@Override
public String toString() {
return "{IndexedColor:" + colorIndex + "}";
}
@Override
public int hashCode() {
int hash = 3;
hash = 43 * hash + this.colorIndex;
return hash;
}
@Override
public boolean equals(Object obj) {
if(obj == null) {
return false;
}
if(getClass() != obj.getClass()) {
return false;
}
final Indexed other = (Indexed) obj;
return this.colorIndex == other.colorIndex;
}
/**
* Picks out a color approximated from the supplied RGB components
* @param red Red intensity, from 0 to 255
* @param green Red intensity, from 0 to 255
* @param blue Red intensity, from 0 to 255
* @return Nearest color from the 6x6x6 RGB color cube or from the 24 entries grey-scale ramp (whichever is closest)
*/
public static Indexed fromRGB(int red, int green, int blue) {
if(red < 0 || red > 255) {
throw new IllegalArgumentException("fromRGB: red is outside of valid range (0-255)");
}
if(green < 0 || green > 255) {
throw new IllegalArgumentException("fromRGB: green is outside of valid range (0-255)");
}
if(blue < 0 || blue > 255) {
throw new IllegalArgumentException("fromRGB: blue is outside of valid range (0-255)");
}
int rescaledRed = (int)(((double)red / 255.0) * 5.0);
int rescaledGreen = (int)(((double)green / 255.0) * 5.0);
int rescaledBlue = (int)(((double)blue / 255.0) * 5.0);
int index = rescaledBlue + (6 * rescaledGreen) + (36 * rescaledRed) + 16;
Indexed fromColorCube = new Indexed(index);
Indexed fromGreyRamp = fromGreyRamp((red + green + blue) / 3);
//Now figure out which one is closest
int coloredDistance = ((red - fromColorCube.getRed()) * (red - fromColorCube.getRed())) +
((green - fromColorCube.getGreen()) * (green - fromColorCube.getGreen())) +
((blue - fromColorCube.getBlue()) * (blue - fromColorCube.getBlue()));
int greyDistance = ((red - fromGreyRamp.getRed()) * (red - fromGreyRamp.getRed())) +
((green - fromGreyRamp.getGreen()) * (green - fromGreyRamp.getGreen())) +
((blue - fromGreyRamp.getBlue()) * (blue - fromGreyRamp.getBlue()));
if(coloredDistance < greyDistance) {
return fromColorCube;
}
else {
return fromGreyRamp;
}
}
/**
* Picks out a color from the grey-scale ramp area of the color index.
* @param intensity Intensity, 0 - 255
* @return Indexed color from the grey-scale ramp which is the best match for the supplied intensity
*/
private static Indexed fromGreyRamp(int intensity) {
int rescaled = (int)(((double)intensity / 255.0) * 23.0) + 232;
return new Indexed(rescaled);
}
}
/**
* This class can be used to specify a color in 24-bit color space (RGB with 8-bit resolution per color). Please be
* aware that only a few terminal support 24-bit color control codes, please avoid using this class unless you know
* all users will have compatible terminals. For details, please see
* <a href="https://github.com/robertknight/konsole/blob/master/user-doc/README.moreColors">
* this</a> commit log. Behavior on terminals that don't support these codes is undefined.
*/
class RGB implements TextColor {
private final int red;
private final int green;
private final int blue;
/**
* This class can be used to specify a color in 24-bit color space (RGB with 8-bit resolution per color). Please be
* aware that only a few terminal support 24-bit color control codes, please avoid using this class unless you know
* all users will have compatible terminals. For details, please see
* <a href="https://github.com/robertknight/konsole/blob/master/user-doc/README.moreColors">
* this</a> commit log. Behavior on terminals that don't support these codes is undefined.
*
* @param r Red intensity, from 0 to 255
* @param g Green intensity, from 0 to 255
* @param b Blue intensity, from 0 to 255
*/
public RGB(int r, int g, int b) {
if(r < 0 || r > 255) {
throw new IllegalArgumentException("RGB: r is outside of valid range (0-255)");
}
if(g < 0 || g > 255) {
throw new IllegalArgumentException("RGB: g is outside of valid range (0-255)");
}
if(b < 0 || b > 255) {
throw new IllegalArgumentException("RGB: b is outside of valid range (0-255)");
}
this.red = r;
this.green = g;
this.blue = b;
}
@Override
public byte[] getForegroundSGRSequence() {
return ("38;2;" + getRed() + ";" + getGreen() + ";" + getBlue()).getBytes();
}
@Override
public byte[] getBackgroundSGRSequence() {
return ("48;2;" + getRed() + ";" + getGreen() + ";" + getBlue()).getBytes();
}
@Override
public int getRed() {
return red;
}
@Override
public int getGreen() {
return green;
}
@Override
public int getBlue() {
return blue;
}
@Override
public Color toColor() {
return new Color(getRed(), getGreen(), getBlue());
}
@Override
public String toString() {
return "{RGB:" + getRed() + "," + getGreen() + "," + getBlue() + "}";
}
@Override
public int hashCode() {
int hash = 7;
hash = 29 * hash + red;
hash = 29 * hash + green;
hash = 29 * hash + blue;
return hash;
}
@Override
public boolean equals(Object obj) {
if (obj == null) {
return false;
}
if (getClass() != obj.getClass()) {
return false;
}
final RGB other = (RGB) obj;
return this.red == other.red
&& this.green == other.green
&& this.blue == other.blue;
}
}
/**
* Utility class to instantiate colors from other types and definitions
*/
class Factory {
private static final Pattern INDEXED_COLOR = Pattern.compile("#[0-9]{1,3}");
private static final Pattern RGB_COLOR = Pattern.compile("#[0-9a-fA-F]{6}");
private Factory() {}
/**
* Parses a string into a color. The string can have one of three formats:
* <ul>
* <li><i>blue</i> - Constant value from the {@link ANSI} enum</li>
* <li><i>#17</i> - Hash character followed by one to three numbers; picks the color with that index from
* the 256 color palette</li>
* <li><i>#1a1a1a</i> - Hash character followed by three hex-decimal tuples; creates an RGB color entry by
* parsing the tuples as Red, Green and Blue</li>
* </ul>
* @param value The string value to parse
* @return A {@link TextColor} that is either an {@link ANSI}, an {@link Indexed} or an {@link RGB} depending on
* the format of the string, or {@code null} if {@code value} is {@code null}.
*/
public static TextColor fromString(String value) {
if(value == null) {
return null;
}
value = value.trim();
if(RGB_COLOR.matcher(value).matches()) {
int r = Integer.parseInt(value.substring(1, 3), 16);
int g = Integer.parseInt(value.substring(3, 5), 16);
int b = Integer.parseInt(value.substring(5, 7), 16);
return new TextColor.RGB(r, g, b);
}
else if(INDEXED_COLOR.matcher(value).matches()) {
int index = Integer.parseInt(value.substring(1));
return new TextColor.Indexed(index);
}
try {
return TextColor.ANSI.valueOf(value.toUpperCase());
}
catch(IllegalArgumentException e) {
throw new IllegalArgumentException("Unknown color definition \"" + value + "\"", e);
}
}
}
}