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daa4106c | 1 | /* |
b1589621 KL |
2 | * Jexer - Java Text User Interface |
3 | * | |
e16dda65 | 4 | * The MIT License (MIT) |
b1589621 | 5 | * |
a69ed767 | 6 | * Copyright (C) 2019 Kevin Lamonte |
b1589621 | 7 | * |
e16dda65 KL |
8 | * Permission is hereby granted, free of charge, to any person obtaining a |
9 | * copy of this software and associated documentation files (the "Software"), | |
10 | * to deal in the Software without restriction, including without limitation | |
11 | * the rights to use, copy, modify, merge, publish, distribute, sublicense, | |
12 | * and/or sell copies of the Software, and to permit persons to whom the | |
13 | * Software is furnished to do so, subject to the following conditions: | |
b1589621 | 14 | * |
e16dda65 KL |
15 | * The above copyright notice and this permission notice shall be included in |
16 | * all copies or substantial portions of the Software. | |
b1589621 | 17 | * |
e16dda65 KL |
18 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
19 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, | |
20 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL | |
21 | * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER | |
22 | * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING | |
23 | * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER | |
24 | * DEALINGS IN THE SOFTWARE. | |
7b5261bc KL |
25 | * |
26 | * @author Kevin Lamonte [kevin.lamonte@gmail.com] | |
27 | * @version 1 | |
b1589621 | 28 | */ |
42873e30 | 29 | package jexer.backend; |
b1589621 | 30 | |
a69ed767 | 31 | import java.awt.image.BufferedImage; |
b1589621 | 32 | import java.io.BufferedReader; |
4328bb42 KL |
33 | import java.io.FileDescriptor; |
34 | import java.io.FileInputStream; | |
b1589621 KL |
35 | import java.io.InputStream; |
36 | import java.io.InputStreamReader; | |
37 | import java.io.IOException; | |
38 | import java.io.OutputStream; | |
39 | import java.io.OutputStreamWriter; | |
40 | import java.io.PrintWriter; | |
41 | import java.io.Reader; | |
42 | import java.io.UnsupportedEncodingException; | |
43 | import java.util.ArrayList; | |
a69ed767 KL |
44 | import java.util.Collections; |
45 | import java.util.HashMap; | |
b1589621 KL |
46 | import java.util.List; |
47 | import java.util.LinkedList; | |
48 | ||
a69ed767 | 49 | import jexer.TImage; |
42873e30 KL |
50 | import jexer.bits.Cell; |
51 | import jexer.bits.CellAttributes; | |
b1589621 | 52 | import jexer.bits.Color; |
abb84744 | 53 | import jexer.event.TCommandEvent; |
b1589621 KL |
54 | import jexer.event.TInputEvent; |
55 | import jexer.event.TKeypressEvent; | |
56 | import jexer.event.TMouseEvent; | |
57 | import jexer.event.TResizeEvent; | |
abb84744 | 58 | import static jexer.TCommand.*; |
b1589621 KL |
59 | import static jexer.TKeypress.*; |
60 | ||
61 | /** | |
7b5261bc KL |
62 | * This class reads keystrokes and mouse events and emits output to ANSI |
63 | * X3.64 / ECMA-48 type terminals e.g. xterm, linux, vt100, ansi.sys, etc. | |
b1589621 | 64 | */ |
051e2913 KL |
65 | public class ECMA48Terminal extends LogicalScreen |
66 | implements TerminalReader, Runnable { | |
42873e30 | 67 | |
d36057df KL |
68 | // ------------------------------------------------------------------------ |
69 | // Constants -------------------------------------------------------------- | |
70 | // ------------------------------------------------------------------------ | |
71 | ||
72 | /** | |
73 | * States in the input parser. | |
74 | */ | |
75 | private enum ParseState { | |
76 | GROUND, | |
77 | ESCAPE, | |
78 | ESCAPE_INTERMEDIATE, | |
79 | CSI_ENTRY, | |
80 | CSI_PARAM, | |
81 | MOUSE, | |
82 | MOUSE_SGR, | |
83 | } | |
84 | ||
a69ed767 KL |
85 | /** |
86 | * Number of colors in the sixel palette. Xterm 335 defines the max as | |
87 | * 1024. | |
88 | */ | |
89 | private static final int MAX_COLOR_REGISTERS = 1024; | |
f5b7a696 KL |
90 | // Black-and-white is possible too. |
91 | // private static final int MAX_COLOR_REGISTERS = 2; | |
a69ed767 | 92 | |
d36057df KL |
93 | // ------------------------------------------------------------------------ |
94 | // Variables -------------------------------------------------------------- | |
95 | // ------------------------------------------------------------------------ | |
96 | ||
42873e30 KL |
97 | /** |
98 | * Emit debugging to stderr. | |
99 | */ | |
100 | private boolean debugToStderr = false; | |
b1589621 | 101 | |
15ea4d73 | 102 | /** |
051e2913 KL |
103 | * If true, emit T.416-style RGB colors for normal system colors. This |
104 | * is a) expensive in bandwidth, and b) potentially terrible looking for | |
105 | * non-xterms. | |
15ea4d73 KL |
106 | */ |
107 | private static boolean doRgbColor = false; | |
108 | ||
b1589621 | 109 | /** |
7b5261bc KL |
110 | * The session information. |
111 | */ | |
112 | private SessionInfo sessionInfo; | |
113 | ||
4328bb42 | 114 | /** |
7b5261bc | 115 | * The event queue, filled up by a thread reading on input. |
4328bb42 KL |
116 | */ |
117 | private List<TInputEvent> eventQueue; | |
118 | ||
119 | /** | |
120 | * If true, we want the reader thread to exit gracefully. | |
121 | */ | |
122 | private boolean stopReaderThread; | |
123 | ||
124 | /** | |
7b5261bc | 125 | * The reader thread. |
4328bb42 KL |
126 | */ |
127 | private Thread readerThread; | |
128 | ||
b1589621 KL |
129 | /** |
130 | * Parameters being collected. E.g. if the string is \033[1;3m, then | |
131 | * params[0] will be 1 and params[1] will be 3. | |
132 | */ | |
d36057df | 133 | private List<String> params; |
b1589621 KL |
134 | |
135 | /** | |
7b5261bc | 136 | * Current parsing state. |
b1589621 KL |
137 | */ |
138 | private ParseState state; | |
139 | ||
140 | /** | |
7b5261bc KL |
141 | * The time we entered ESCAPE. If we get a bare escape without a code |
142 | * following it, this is used to return that bare escape. | |
b1589621 KL |
143 | */ |
144 | private long escapeTime; | |
145 | ||
a83fea2b KL |
146 | /** |
147 | * The time we last checked the window size. We try not to spawn stty | |
148 | * more than once per second. | |
149 | */ | |
150 | private long windowSizeTime; | |
151 | ||
b1589621 KL |
152 | /** |
153 | * true if mouse1 was down. Used to report mouse1 on the release event. | |
154 | */ | |
155 | private boolean mouse1; | |
156 | ||
157 | /** | |
158 | * true if mouse2 was down. Used to report mouse2 on the release event. | |
159 | */ | |
160 | private boolean mouse2; | |
161 | ||
162 | /** | |
163 | * true if mouse3 was down. Used to report mouse3 on the release event. | |
164 | */ | |
165 | private boolean mouse3; | |
166 | ||
167 | /** | |
168 | * Cache the cursor visibility value so we only emit the sequence when we | |
169 | * need to. | |
170 | */ | |
171 | private boolean cursorOn = true; | |
172 | ||
173 | /** | |
174 | * Cache the last window size to figure out if a TResizeEvent needs to be | |
175 | * generated. | |
176 | */ | |
177 | private TResizeEvent windowResize = null; | |
178 | ||
a69ed767 KL |
179 | /** |
180 | * Window width in pixels. Used for sixel support. | |
181 | */ | |
182 | private int widthPixels = 640; | |
183 | ||
184 | /** | |
185 | * Window height in pixels. Used for sixel support. | |
186 | */ | |
187 | private int heightPixels = 400; | |
188 | ||
189 | /** | |
190 | * If true, emit image data via sixel. | |
191 | */ | |
192 | private boolean sixel = true; | |
193 | ||
194 | /** | |
195 | * The sixel palette handler. | |
196 | */ | |
197 | private SixelPalette palette = null; | |
198 | ||
199 | /** | |
200 | * The sixel post-rendered string cache. | |
201 | */ | |
202 | private SixelCache sixelCache = null; | |
203 | ||
b1589621 KL |
204 | /** |
205 | * If true, then we changed System.in and need to change it back. | |
206 | */ | |
207 | private boolean setRawMode; | |
208 | ||
209 | /** | |
210 | * The terminal's input. If an InputStream is not specified in the | |
4328bb42 KL |
211 | * constructor, then this InputStreamReader will be bound to System.in |
212 | * with UTF-8 encoding. | |
b1589621 KL |
213 | */ |
214 | private Reader input; | |
215 | ||
4328bb42 KL |
216 | /** |
217 | * The terminal's raw InputStream. If an InputStream is not specified in | |
218 | * the constructor, then this InputReader will be bound to System.in. | |
219 | * This is used by run() to see if bytes are available() before calling | |
220 | * (Reader)input.read(). | |
221 | */ | |
222 | private InputStream inputStream; | |
223 | ||
b1589621 KL |
224 | /** |
225 | * The terminal's output. If an OutputStream is not specified in the | |
226 | * constructor, then this PrintWriter will be bound to System.out with | |
227 | * UTF-8 encoding. | |
228 | */ | |
229 | private PrintWriter output; | |
230 | ||
92554d64 KL |
231 | /** |
232 | * The listening object that run() wakes up on new input. | |
233 | */ | |
234 | private Object listener; | |
235 | ||
a69ed767 KL |
236 | /** |
237 | * SixelPalette is used to manage the conversion of images between 24-bit | |
238 | * RGB color and a palette of MAX_COLOR_REGISTERS colors. | |
239 | */ | |
240 | private class SixelPalette { | |
241 | ||
242 | /** | |
243 | * Color palette for sixel output, sorted low to high. | |
244 | */ | |
245 | private List<Integer> rgbColors = new ArrayList<Integer>(); | |
246 | ||
247 | /** | |
248 | * Map of color palette index for sixel output, from the order it was | |
249 | * generated by makePalette() to rgbColors. | |
250 | */ | |
251 | private int [] rgbSortedIndex = new int[MAX_COLOR_REGISTERS]; | |
252 | ||
253 | /** | |
254 | * The color palette, organized by hue, saturation, and luminance. | |
255 | * This is used for a fast color match. | |
256 | */ | |
257 | private ArrayList<ArrayList<ArrayList<ColorIdx>>> hslColors; | |
258 | ||
259 | /** | |
260 | * Number of bits for hue. | |
261 | */ | |
262 | private int hueBits = -1; | |
263 | ||
264 | /** | |
265 | * Number of bits for saturation. | |
266 | */ | |
267 | private int satBits = -1; | |
268 | ||
269 | /** | |
270 | * Number of bits for luminance. | |
271 | */ | |
272 | private int lumBits = -1; | |
273 | ||
274 | /** | |
275 | * Step size for hue bins. | |
276 | */ | |
277 | private int hueStep = -1; | |
278 | ||
279 | /** | |
280 | * Step size for saturation bins. | |
281 | */ | |
282 | private int satStep = -1; | |
283 | ||
284 | /** | |
285 | * Cached RGB to HSL result. | |
286 | */ | |
287 | private int hsl[] = new int[3]; | |
288 | ||
289 | /** | |
290 | * ColorIdx records a RGB color and its palette index. | |
291 | */ | |
292 | private class ColorIdx { | |
293 | /** | |
294 | * The 24-bit RGB color. | |
295 | */ | |
296 | public int color; | |
297 | ||
298 | /** | |
299 | * The palette index for this color. | |
300 | */ | |
301 | public int index; | |
302 | ||
303 | /** | |
304 | * Public constructor. | |
305 | * | |
306 | * @param color the 24-bit RGB color | |
307 | * @param index the palette index for this color | |
308 | */ | |
309 | public ColorIdx(final int color, final int index) { | |
310 | this.color = color; | |
311 | this.index = index; | |
312 | } | |
313 | } | |
314 | ||
315 | /** | |
316 | * Public constructor. | |
317 | */ | |
318 | public SixelPalette() { | |
319 | makePalette(); | |
320 | } | |
321 | ||
322 | /** | |
323 | * Find the nearest match for a color in the palette. | |
324 | * | |
325 | * @param color the RGB color | |
326 | * @return the index in rgbColors that is closest to color | |
327 | */ | |
328 | public int matchColor(final int color) { | |
329 | ||
330 | assert (color >= 0); | |
331 | ||
332 | /* | |
333 | * matchColor() is a critical performance bottleneck. To make it | |
334 | * decent, we do the following: | |
335 | * | |
336 | * 1. Find the nearest two hues that bracket this color. | |
337 | * | |
338 | * 2. Find the nearest two saturations that bracket this color. | |
339 | * | |
340 | * 3. Iterate within these four bands of luminance values, | |
341 | * returning the closest color by Euclidean distance. | |
342 | * | |
343 | * This strategy reduces the search space by about 97%. | |
344 | */ | |
345 | int red = (color >>> 16) & 0xFF; | |
346 | int green = (color >>> 8) & 0xFF; | |
347 | int blue = color & 0xFF; | |
348 | ||
f5b7a696 KL |
349 | if (MAX_COLOR_REGISTERS == 2) { |
350 | if (((red * red) + (green * green) + (blue * blue)) < 35568) { | |
351 | // Black | |
352 | return 0; | |
353 | } | |
354 | // White | |
355 | return 1; | |
356 | } | |
357 | ||
358 | ||
a69ed767 KL |
359 | rgbToHsl(red, green, blue, hsl); |
360 | int hue = hsl[0]; | |
361 | int sat = hsl[1]; | |
362 | int lum = hsl[2]; | |
363 | // System.err.printf("%d %d %d\n", hue, sat, lum); | |
364 | ||
365 | double diff = Double.MAX_VALUE; | |
366 | int idx = -1; | |
367 | ||
368 | int hue1 = hue / (360/hueStep); | |
369 | int hue2 = hue1 + 1; | |
370 | if (hue1 >= hslColors.size() - 1) { | |
371 | // Bracket pure red from above. | |
372 | hue1 = hslColors.size() - 1; | |
373 | hue2 = 0; | |
374 | } else if (hue1 == 0) { | |
375 | // Bracket pure red from below. | |
376 | hue2 = hslColors.size() - 1; | |
377 | } | |
378 | ||
379 | for (int hI = hue1; hI != -1;) { | |
380 | ArrayList<ArrayList<ColorIdx>> sats = hslColors.get(hI); | |
381 | if (hI == hue1) { | |
382 | hI = hue2; | |
383 | } else if (hI == hue2) { | |
384 | hI = -1; | |
385 | } | |
386 | ||
387 | int sMin = (sat / satStep) - 1; | |
388 | int sMax = sMin + 1; | |
389 | if (sMin < 0) { | |
390 | sMin = 0; | |
391 | sMax = 1; | |
392 | } else if (sMin == sats.size() - 1) { | |
393 | sMax = sMin; | |
394 | sMin--; | |
395 | } | |
396 | assert (sMin >= 0); | |
397 | assert (sMax - sMin == 1); | |
398 | ||
399 | // int sMin = 0; | |
400 | // int sMax = sats.size() - 1; | |
401 | ||
402 | for (int sI = sMin; sI <= sMax; sI++) { | |
403 | ArrayList<ColorIdx> lums = sats.get(sI); | |
404 | ||
405 | // True 3D colorspace match for the remaining values | |
406 | for (ColorIdx c: lums) { | |
407 | int rgbColor = c.color; | |
408 | double newDiff = 0; | |
409 | int red2 = (rgbColor >>> 16) & 0xFF; | |
410 | int green2 = (rgbColor >>> 8) & 0xFF; | |
411 | int blue2 = rgbColor & 0xFF; | |
412 | newDiff += Math.pow(red2 - red, 2); | |
413 | newDiff += Math.pow(green2 - green, 2); | |
414 | newDiff += Math.pow(blue2 - blue, 2); | |
415 | if (newDiff < diff) { | |
416 | idx = rgbSortedIndex[c.index]; | |
417 | diff = newDiff; | |
418 | } | |
419 | } | |
420 | } | |
421 | } | |
422 | ||
423 | if (((red * red) + (green * green) + (blue * blue)) < diff) { | |
424 | // Black is a closer match. | |
425 | idx = 0; | |
426 | } else if ((((255 - red) * (255 - red)) + | |
427 | ((255 - green) * (255 - green)) + | |
428 | ((255 - blue) * (255 - blue))) < diff) { | |
429 | ||
430 | // White is a closer match. | |
431 | idx = MAX_COLOR_REGISTERS - 1; | |
432 | } | |
433 | assert (idx != -1); | |
434 | return idx; | |
435 | } | |
436 | ||
437 | /** | |
438 | * Clamp an int value to [0, 255]. | |
439 | * | |
440 | * @param x the int value | |
441 | * @return an int between 0 and 255. | |
442 | */ | |
443 | private int clamp(final int x) { | |
444 | if (x < 0) { | |
445 | return 0; | |
446 | } | |
447 | if (x > 255) { | |
448 | return 255; | |
449 | } | |
450 | return x; | |
451 | } | |
452 | ||
453 | /** | |
454 | * Dither an image to a MAX_COLOR_REGISTERS palette. The dithered | |
455 | * image cells will contain indexes into the palette. | |
456 | * | |
457 | * @param image the image to dither | |
458 | * @return the dithered image. Every pixel is an index into the | |
459 | * palette. | |
460 | */ | |
461 | public BufferedImage ditherImage(final BufferedImage image) { | |
462 | ||
463 | BufferedImage ditheredImage = new BufferedImage(image.getWidth(), | |
464 | image.getHeight(), BufferedImage.TYPE_INT_ARGB); | |
465 | ||
466 | int [] rgbArray = image.getRGB(0, 0, image.getWidth(), | |
467 | image.getHeight(), null, 0, image.getWidth()); | |
468 | ditheredImage.setRGB(0, 0, image.getWidth(), image.getHeight(), | |
469 | rgbArray, 0, image.getWidth()); | |
470 | ||
471 | for (int imageY = 0; imageY < image.getHeight(); imageY++) { | |
472 | for (int imageX = 0; imageX < image.getWidth(); imageX++) { | |
473 | int oldPixel = ditheredImage.getRGB(imageX, | |
474 | imageY) & 0xFFFFFF; | |
475 | int colorIdx = matchColor(oldPixel); | |
476 | assert (colorIdx >= 0); | |
477 | assert (colorIdx < MAX_COLOR_REGISTERS); | |
478 | int newPixel = rgbColors.get(colorIdx); | |
479 | ditheredImage.setRGB(imageX, imageY, colorIdx); | |
480 | ||
481 | int oldRed = (oldPixel >>> 16) & 0xFF; | |
482 | int oldGreen = (oldPixel >>> 8) & 0xFF; | |
483 | int oldBlue = oldPixel & 0xFF; | |
484 | ||
485 | int newRed = (newPixel >>> 16) & 0xFF; | |
486 | int newGreen = (newPixel >>> 8) & 0xFF; | |
487 | int newBlue = newPixel & 0xFF; | |
488 | ||
489 | int redError = (oldRed - newRed) / 16; | |
490 | int greenError = (oldGreen - newGreen) / 16; | |
491 | int blueError = (oldBlue - newBlue) / 16; | |
492 | ||
493 | int red, green, blue; | |
494 | if (imageX < image.getWidth() - 1) { | |
495 | int pXpY = ditheredImage.getRGB(imageX + 1, imageY); | |
9696a8f6 KL |
496 | red = ((pXpY >>> 16) & 0xFF) + (7 * redError); |
497 | green = ((pXpY >>> 8) & 0xFF) + (7 * greenError); | |
498 | blue = ( pXpY & 0xFF) + (7 * blueError); | |
a69ed767 KL |
499 | red = clamp(red); |
500 | green = clamp(green); | |
501 | blue = clamp(blue); | |
502 | pXpY = ((red & 0xFF) << 16); | |
503 | pXpY |= ((green & 0xFF) << 8) | (blue & 0xFF); | |
504 | ditheredImage.setRGB(imageX + 1, imageY, pXpY); | |
505 | ||
506 | if (imageY < image.getHeight() - 1) { | |
507 | int pXpYp = ditheredImage.getRGB(imageX + 1, | |
508 | imageY + 1); | |
9696a8f6 KL |
509 | red = ((pXpYp >>> 16) & 0xFF) + redError; |
510 | green = ((pXpYp >>> 8) & 0xFF) + greenError; | |
511 | blue = ( pXpYp & 0xFF) + blueError; | |
a69ed767 KL |
512 | red = clamp(red); |
513 | green = clamp(green); | |
514 | blue = clamp(blue); | |
515 | pXpYp = ((red & 0xFF) << 16); | |
516 | pXpYp |= ((green & 0xFF) << 8) | (blue & 0xFF); | |
517 | ditheredImage.setRGB(imageX + 1, imageY + 1, pXpYp); | |
518 | } | |
519 | } else if (imageY < image.getHeight() - 1) { | |
520 | int pXmYp = ditheredImage.getRGB(imageX - 1, | |
521 | imageY + 1); | |
522 | int pXYp = ditheredImage.getRGB(imageX, | |
523 | imageY + 1); | |
524 | ||
9696a8f6 KL |
525 | red = ((pXmYp >>> 16) & 0xFF) + (3 * redError); |
526 | green = ((pXmYp >>> 8) & 0xFF) + (3 * greenError); | |
527 | blue = ( pXmYp & 0xFF) + (3 * blueError); | |
a69ed767 KL |
528 | red = clamp(red); |
529 | green = clamp(green); | |
530 | blue = clamp(blue); | |
531 | pXmYp = ((red & 0xFF) << 16); | |
532 | pXmYp |= ((green & 0xFF) << 8) | (blue & 0xFF); | |
533 | ditheredImage.setRGB(imageX - 1, imageY + 1, pXmYp); | |
534 | ||
9696a8f6 KL |
535 | red = ((pXYp >>> 16) & 0xFF) + (5 * redError); |
536 | green = ((pXYp >>> 8) & 0xFF) + (5 * greenError); | |
537 | blue = ( pXYp & 0xFF) + (5 * blueError); | |
a69ed767 KL |
538 | red = clamp(red); |
539 | green = clamp(green); | |
540 | blue = clamp(blue); | |
541 | pXYp = ((red & 0xFF) << 16); | |
542 | pXYp |= ((green & 0xFF) << 8) | (blue & 0xFF); | |
543 | ditheredImage.setRGB(imageX, imageY + 1, pXYp); | |
544 | } | |
545 | } // for (int imageY = 0; imageY < image.getHeight(); imageY++) | |
546 | } // for (int imageX = 0; imageX < image.getWidth(); imageX++) | |
547 | ||
548 | return ditheredImage; | |
549 | } | |
550 | ||
551 | /** | |
552 | * Convert an RGB color to HSL. | |
553 | * | |
554 | * @param red red color, between 0 and 255 | |
555 | * @param green green color, between 0 and 255 | |
556 | * @param blue blue color, between 0 and 255 | |
557 | * @param hsl the hsl color as [hue, saturation, luminance] | |
558 | */ | |
559 | private void rgbToHsl(final int red, final int green, | |
560 | final int blue, final int [] hsl) { | |
561 | ||
562 | assert ((red >= 0) && (red <= 255)); | |
563 | assert ((green >= 0) && (green <= 255)); | |
564 | assert ((blue >= 0) && (blue <= 255)); | |
565 | ||
566 | double R = red / 255.0; | |
567 | double G = green / 255.0; | |
568 | double B = blue / 255.0; | |
569 | boolean Rmax = false; | |
570 | boolean Gmax = false; | |
571 | boolean Bmax = false; | |
572 | double min = (R < G ? R : G); | |
573 | min = (min < B ? min : B); | |
574 | double max = 0; | |
575 | if ((R >= G) && (R >= B)) { | |
576 | max = R; | |
577 | Rmax = true; | |
578 | } else if ((G >= R) && (G >= B)) { | |
579 | max = G; | |
580 | Gmax = true; | |
581 | } else if ((B >= G) && (B >= R)) { | |
582 | max = B; | |
583 | Bmax = true; | |
584 | } | |
585 | ||
586 | double L = (min + max) / 2.0; | |
587 | double H = 0.0; | |
588 | double S = 0.0; | |
589 | if (min != max) { | |
590 | if (L < 0.5) { | |
591 | S = (max - min) / (max + min); | |
592 | } else { | |
593 | S = (max - min) / (2.0 - max - min); | |
594 | } | |
595 | } | |
596 | if (Rmax) { | |
597 | assert (Gmax == false); | |
598 | assert (Bmax == false); | |
599 | H = (G - B) / (max - min); | |
600 | } else if (Gmax) { | |
601 | assert (Rmax == false); | |
602 | assert (Bmax == false); | |
603 | H = 2.0 + (B - R) / (max - min); | |
604 | } else if (Bmax) { | |
605 | assert (Rmax == false); | |
606 | assert (Gmax == false); | |
607 | H = 4.0 + (R - G) / (max - min); | |
608 | } | |
609 | if (H < 0.0) { | |
610 | H += 6.0; | |
611 | } | |
612 | hsl[0] = (int) (H * 60.0); | |
613 | hsl[1] = (int) (S * 100.0); | |
614 | hsl[2] = (int) (L * 100.0); | |
615 | ||
616 | assert ((hsl[0] >= 0) && (hsl[0] <= 360)); | |
617 | assert ((hsl[1] >= 0) && (hsl[1] <= 100)); | |
618 | assert ((hsl[2] >= 0) && (hsl[2] <= 100)); | |
619 | } | |
620 | ||
621 | /** | |
622 | * Convert a HSL color to RGB. | |
623 | * | |
624 | * @param hue hue, between 0 and 359 | |
625 | * @param sat saturation, between 0 and 100 | |
626 | * @param lum luminance, between 0 and 100 | |
627 | * @return the rgb color as 0x00RRGGBB | |
628 | */ | |
629 | private int hslToRgb(final int hue, final int sat, final int lum) { | |
630 | assert ((hue >= 0) && (hue <= 360)); | |
631 | assert ((sat >= 0) && (sat <= 100)); | |
632 | assert ((lum >= 0) && (lum <= 100)); | |
633 | ||
634 | double S = sat / 100.0; | |
635 | double L = lum / 100.0; | |
636 | double C = (1.0 - Math.abs((2.0 * L) - 1.0)) * S; | |
637 | double Hp = hue / 60.0; | |
638 | double X = C * (1.0 - Math.abs((Hp % 2) - 1.0)); | |
639 | double Rp = 0.0; | |
640 | double Gp = 0.0; | |
641 | double Bp = 0.0; | |
642 | if (Hp <= 1.0) { | |
643 | Rp = C; | |
644 | Gp = X; | |
645 | } else if (Hp <= 2.0) { | |
646 | Rp = X; | |
647 | Gp = C; | |
648 | } else if (Hp <= 3.0) { | |
649 | Gp = C; | |
650 | Bp = X; | |
651 | } else if (Hp <= 4.0) { | |
652 | Gp = X; | |
653 | Bp = C; | |
654 | } else if (Hp <= 5.0) { | |
655 | Rp = X; | |
656 | Bp = C; | |
657 | } else if (Hp <= 6.0) { | |
658 | Rp = C; | |
659 | Bp = X; | |
660 | } | |
661 | double m = L - (C / 2.0); | |
662 | int red = ((int) ((Rp + m) * 255.0)) << 16; | |
663 | int green = ((int) ((Gp + m) * 255.0)) << 8; | |
664 | int blue = (int) ((Bp + m) * 255.0); | |
665 | ||
666 | return (red | green | blue); | |
667 | } | |
668 | ||
669 | /** | |
670 | * Create the sixel palette. | |
671 | */ | |
672 | private void makePalette() { | |
673 | // Generate the sixel palette. Because we have no idea at this | |
674 | // layer which image(s) will be shown, we have to use a common | |
675 | // palette with MAX_COLOR_REGISTERS colors for everything, and | |
676 | // map the BufferedImage colors to their nearest neighbor in RGB | |
677 | // space. | |
678 | ||
f5b7a696 KL |
679 | if (MAX_COLOR_REGISTERS == 2) { |
680 | rgbColors.add(0); | |
681 | rgbColors.add(0xFFFFFF); | |
682 | rgbSortedIndex[0] = 0; | |
683 | rgbSortedIndex[1] = 1; | |
684 | return; | |
685 | } | |
686 | ||
a69ed767 KL |
687 | // We build a palette using the Hue-Saturation-Luminence model, |
688 | // with 5+ bits for Hue, 2+ bits for Saturation, and 1+ bit for | |
689 | // Luminance. We convert these colors to 24-bit RGB, sort them | |
690 | // ascending, and steal the first index for pure black and the | |
691 | // last for pure white. The 8-bit final palette favors bright | |
692 | // colors, somewhere between pastel and classic television | |
693 | // technicolor. 9- and 10-bit palettes are more uniform. | |
694 | ||
695 | // Default at 256 colors. | |
696 | hueBits = 5; | |
697 | satBits = 2; | |
698 | lumBits = 1; | |
699 | ||
700 | assert (MAX_COLOR_REGISTERS >= 256); | |
701 | assert ((MAX_COLOR_REGISTERS == 256) | |
702 | || (MAX_COLOR_REGISTERS == 512) | |
703 | || (MAX_COLOR_REGISTERS == 1024) | |
704 | || (MAX_COLOR_REGISTERS == 2048)); | |
705 | ||
706 | switch (MAX_COLOR_REGISTERS) { | |
707 | case 512: | |
708 | hueBits = 5; | |
709 | satBits = 2; | |
710 | lumBits = 2; | |
711 | break; | |
712 | case 1024: | |
713 | hueBits = 5; | |
714 | satBits = 2; | |
715 | lumBits = 3; | |
716 | break; | |
717 | case 2048: | |
718 | hueBits = 5; | |
719 | satBits = 3; | |
720 | lumBits = 3; | |
721 | break; | |
722 | } | |
723 | hueStep = (int) (Math.pow(2, hueBits)); | |
724 | satStep = (int) (100 / Math.pow(2, satBits)); | |
725 | // 1 bit for luminance: 40 and 70. | |
726 | int lumBegin = 40; | |
727 | int lumStep = 30; | |
728 | switch (lumBits) { | |
729 | case 2: | |
730 | // 2 bits: 20, 40, 60, 80 | |
731 | lumBegin = 20; | |
732 | lumStep = 20; | |
733 | break; | |
734 | case 3: | |
735 | // 3 bits: 8, 20, 32, 44, 56, 68, 80, 92 | |
736 | lumBegin = 8; | |
737 | lumStep = 12; | |
738 | break; | |
739 | } | |
740 | ||
741 | // System.err.printf("<html><body>\n"); | |
742 | // Hue is evenly spaced around the wheel. | |
743 | hslColors = new ArrayList<ArrayList<ArrayList<ColorIdx>>>(); | |
744 | ||
745 | final boolean DEBUG = false; | |
746 | ArrayList<Integer> rawRgbList = new ArrayList<Integer>(); | |
747 | ||
748 | for (int hue = 0; hue < (360 - (360 % hueStep)); | |
749 | hue += (360/hueStep)) { | |
750 | ||
751 | ArrayList<ArrayList<ColorIdx>> satList = null; | |
752 | satList = new ArrayList<ArrayList<ColorIdx>>(); | |
753 | hslColors.add(satList); | |
754 | ||
755 | // Saturation is linearly spaced between pastel and pure. | |
756 | for (int sat = satStep; sat <= 100; sat += satStep) { | |
757 | ||
758 | ArrayList<ColorIdx> lumList = new ArrayList<ColorIdx>(); | |
759 | satList.add(lumList); | |
760 | ||
761 | // Luminance brackets the pure color, but leaning toward | |
762 | // lighter. | |
763 | for (int lum = lumBegin; lum < 100; lum += lumStep) { | |
764 | /* | |
765 | System.err.printf("<font style = \"color:"); | |
766 | System.err.printf("hsl(%d, %d%%, %d%%)", | |
767 | hue, sat, lum); | |
768 | System.err.printf(";\">=</font>\n"); | |
769 | */ | |
770 | int rgbColor = hslToRgb(hue, sat, lum); | |
771 | rgbColors.add(rgbColor); | |
772 | ColorIdx colorIdx = new ColorIdx(rgbColor, | |
773 | rgbColors.size() - 1); | |
774 | lumList.add(colorIdx); | |
775 | ||
776 | rawRgbList.add(rgbColor); | |
777 | if (DEBUG) { | |
778 | int red = (rgbColor >>> 16) & 0xFF; | |
779 | int green = (rgbColor >>> 8) & 0xFF; | |
780 | int blue = rgbColor & 0xFF; | |
781 | int [] backToHsl = new int[3]; | |
782 | rgbToHsl(red, green, blue, backToHsl); | |
783 | System.err.printf("%d [%d] %d [%d] %d [%d]\n", | |
784 | hue, backToHsl[0], sat, backToHsl[1], | |
785 | lum, backToHsl[2]); | |
786 | } | |
787 | } | |
788 | } | |
789 | } | |
790 | // System.err.printf("\n</body></html>\n"); | |
791 | ||
792 | assert (rgbColors.size() == MAX_COLOR_REGISTERS); | |
793 | ||
794 | /* | |
795 | * We need to sort rgbColors, so that toSixel() can know where | |
796 | * BLACK and WHITE are in it. But we also need to be able to | |
797 | * find the sorted values using the old unsorted indexes. So we | |
798 | * will sort it, put all the indexes into a HashMap, and then | |
799 | * build rgbSortedIndex[]. | |
800 | */ | |
801 | Collections.sort(rgbColors); | |
802 | HashMap<Integer, Integer> rgbColorIndices = null; | |
803 | rgbColorIndices = new HashMap<Integer, Integer>(); | |
804 | for (int i = 0; i < MAX_COLOR_REGISTERS; i++) { | |
805 | rgbColorIndices.put(rgbColors.get(i), i); | |
806 | } | |
807 | for (int i = 0; i < MAX_COLOR_REGISTERS; i++) { | |
808 | int rawColor = rawRgbList.get(i); | |
809 | rgbSortedIndex[i] = rgbColorIndices.get(rawColor); | |
810 | } | |
811 | if (DEBUG) { | |
812 | for (int i = 0; i < MAX_COLOR_REGISTERS; i++) { | |
813 | assert (rawRgbList != null); | |
814 | int idx = rgbSortedIndex[i]; | |
815 | int rgbColor = rgbColors.get(idx); | |
816 | if ((idx != 0) && (idx != MAX_COLOR_REGISTERS - 1)) { | |
817 | /* | |
818 | System.err.printf("%d %06x --> %d %06x\n", | |
819 | i, rawRgbList.get(i), idx, rgbColors.get(idx)); | |
820 | */ | |
821 | assert (rgbColor == rawRgbList.get(i)); | |
822 | } | |
823 | } | |
824 | } | |
825 | ||
826 | // Set the dimmest color as true black, and the brightest as true | |
827 | // white. | |
828 | rgbColors.set(0, 0); | |
829 | rgbColors.set(MAX_COLOR_REGISTERS - 1, 0xFFFFFF); | |
830 | ||
831 | /* | |
832 | System.err.printf("<html><body>\n"); | |
833 | for (Integer rgb: rgbColors) { | |
834 | System.err.printf("<font style = \"color:"); | |
835 | System.err.printf("#%06x", rgb); | |
836 | System.err.printf(";\">=</font>\n"); | |
837 | } | |
838 | System.err.printf("\n</body></html>\n"); | |
839 | */ | |
840 | ||
841 | } | |
842 | ||
843 | /** | |
844 | * Emit the sixel palette. | |
845 | * | |
846 | * @param sb the StringBuilder to append to | |
847 | * @param used array of booleans set to true for each color actually | |
848 | * used in this cell, or null to emit the entire palette | |
849 | * @return the string to emit to an ANSI / ECMA-style terminal | |
850 | */ | |
851 | public String emitPalette(final StringBuilder sb, | |
852 | final boolean [] used) { | |
853 | ||
854 | for (int i = 0; i < MAX_COLOR_REGISTERS; i++) { | |
855 | if (((used != null) && (used[i] == true)) || (used == null)) { | |
856 | int rgbColor = rgbColors.get(i); | |
857 | sb.append(String.format("#%d;2;%d;%d;%d", i, | |
858 | ((rgbColor >>> 16) & 0xFF) * 100 / 255, | |
859 | ((rgbColor >>> 8) & 0xFF) * 100 / 255, | |
860 | ( rgbColor & 0xFF) * 100 / 255)); | |
861 | } | |
862 | } | |
863 | return sb.toString(); | |
864 | } | |
865 | } | |
866 | ||
867 | /** | |
868 | * SixelCache is a least-recently-used cache that hangs on to the | |
869 | * post-rendered sixel string for a particular set of cells. | |
870 | */ | |
871 | private class SixelCache { | |
872 | ||
873 | /** | |
874 | * Maximum size of the cache. | |
875 | */ | |
876 | private int maxSize = 100; | |
877 | ||
878 | /** | |
879 | * The entries stored in the cache. | |
880 | */ | |
881 | private HashMap<String, CacheEntry> cache = null; | |
882 | ||
883 | /** | |
884 | * CacheEntry is one entry in the cache. | |
885 | */ | |
886 | private class CacheEntry { | |
887 | /** | |
888 | * The cache key. | |
889 | */ | |
890 | public String key; | |
891 | ||
892 | /** | |
893 | * The cache data. | |
894 | */ | |
895 | public String data; | |
896 | ||
897 | /** | |
898 | * The last time this entry was used. | |
899 | */ | |
900 | public long millis = 0; | |
901 | ||
902 | /** | |
903 | * Public constructor. | |
904 | * | |
905 | * @param key the cache entry key | |
906 | * @param data the cache entry data | |
907 | */ | |
908 | public CacheEntry(final String key, final String data) { | |
909 | this.key = key; | |
910 | this.data = data; | |
911 | this.millis = System.currentTimeMillis(); | |
912 | } | |
913 | } | |
914 | ||
915 | /** | |
916 | * Public constructor. | |
917 | * | |
918 | * @param maxSize the maximum size of the cache | |
919 | */ | |
920 | public SixelCache(final int maxSize) { | |
921 | this.maxSize = maxSize; | |
922 | cache = new HashMap<String, CacheEntry>(); | |
923 | } | |
924 | ||
925 | /** | |
926 | * Make a unique key for a list of cells. | |
927 | * | |
928 | * @param cells the cells | |
929 | * @return the key | |
930 | */ | |
931 | private String makeKey(final ArrayList<Cell> cells) { | |
932 | StringBuilder sb = new StringBuilder(); | |
933 | for (Cell cell: cells) { | |
934 | sb.append(cell.hashCode()); | |
935 | } | |
936 | return sb.toString(); | |
937 | } | |
938 | ||
939 | /** | |
940 | * Get an entry from the cache. | |
941 | * | |
942 | * @param cells the list of cells that are the cache key | |
943 | * @return the sixel string representing these cells, or null if this | |
944 | * list of cells is not in the cache | |
945 | */ | |
946 | public String get(final ArrayList<Cell> cells) { | |
947 | CacheEntry entry = cache.get(makeKey(cells)); | |
948 | if (entry == null) { | |
949 | return null; | |
950 | } | |
951 | entry.millis = System.currentTimeMillis(); | |
952 | return entry.data; | |
953 | } | |
954 | ||
955 | /** | |
956 | * Put an entry into the cache. | |
957 | * | |
958 | * @param cells the list of cells that are the cache key | |
959 | * @param data the sixel string representing these cells | |
960 | */ | |
961 | public void put(final ArrayList<Cell> cells, final String data) { | |
962 | String key = makeKey(cells); | |
963 | ||
964 | // System.err.println("put() " + key + " size " + cache.size()); | |
965 | ||
966 | assert (!cache.containsKey(key)); | |
967 | ||
968 | assert (cache.size() <= maxSize); | |
969 | if (cache.size() == maxSize) { | |
970 | // Cache is at limit, evict oldest entry. | |
971 | long oldestTime = Long.MAX_VALUE; | |
972 | String keyToRemove = null; | |
973 | for (CacheEntry entry: cache.values()) { | |
974 | if ((entry.millis < oldestTime) || (keyToRemove == null)) { | |
975 | keyToRemove = entry.key; | |
976 | oldestTime = entry.millis; | |
977 | } | |
978 | } | |
979 | /* | |
980 | System.err.println("put() remove key = " + keyToRemove + | |
981 | " size " + cache.size()); | |
982 | */ | |
983 | assert (keyToRemove != null); | |
984 | cache.remove(keyToRemove); | |
985 | /* | |
986 | System.err.println("put() removed, size " + cache.size()); | |
987 | */ | |
988 | } | |
989 | assert (cache.size() <= maxSize); | |
990 | CacheEntry entry = new CacheEntry(key, data); | |
991 | assert (key.equals(entry.key)); | |
992 | cache.put(key, entry); | |
993 | /* | |
994 | System.err.println("put() added key " + key + " " + | |
995 | " size " + cache.size()); | |
996 | */ | |
997 | } | |
998 | ||
999 | } | |
1000 | ||
d36057df KL |
1001 | // ------------------------------------------------------------------------ |
1002 | // Constructors ----------------------------------------------------------- | |
1003 | // ------------------------------------------------------------------------ | |
b1589621 KL |
1004 | |
1005 | /** | |
7b5261bc | 1006 | * Constructor sets up state for getEvent(). |
eb29bbb5 KL |
1007 | * |
1008 | * @param listener the object this backend needs to wake up when new | |
1009 | * input comes in | |
1010 | * @param input an InputStream connected to the remote user, or null for | |
1011 | * System.in. If System.in is used, then on non-Windows systems it will | |
1012 | * be put in raw mode; shutdown() will (blindly!) put System.in in cooked | |
1013 | * mode. input is always converted to a Reader with UTF-8 encoding. | |
1014 | * @param output an OutputStream connected to the remote user, or null | |
1015 | * for System.out. output is always converted to a Writer with UTF-8 | |
1016 | * encoding. | |
1017 | * @param windowWidth the number of text columns to start with | |
1018 | * @param windowHeight the number of text rows to start with | |
1019 | * @throws UnsupportedEncodingException if an exception is thrown when | |
1020 | * creating the InputStreamReader | |
1021 | */ | |
1022 | public ECMA48Terminal(final Object listener, final InputStream input, | |
1023 | final OutputStream output, final int windowWidth, | |
1024 | final int windowHeight) throws UnsupportedEncodingException { | |
1025 | ||
1026 | this(listener, input, output); | |
1027 | ||
1028 | // Send dtterm/xterm sequences, which will probably not work because | |
1029 | // allowWindowOps is defaulted to false. | |
1030 | String resizeString = String.format("\033[8;%d;%dt", windowHeight, | |
1031 | windowWidth); | |
1032 | this.output.write(resizeString); | |
1033 | this.output.flush(); | |
1034 | } | |
1035 | ||
1036 | /** | |
1037 | * Constructor sets up state for getEvent(). | |
b1589621 | 1038 | * |
92554d64 KL |
1039 | * @param listener the object this backend needs to wake up when new |
1040 | * input comes in | |
b1589621 KL |
1041 | * @param input an InputStream connected to the remote user, or null for |
1042 | * System.in. If System.in is used, then on non-Windows systems it will | |
1043 | * be put in raw mode; shutdown() will (blindly!) put System.in in cooked | |
1044 | * mode. input is always converted to a Reader with UTF-8 encoding. | |
1045 | * @param output an OutputStream connected to the remote user, or null | |
1046 | * for System.out. output is always converted to a Writer with UTF-8 | |
1047 | * encoding. | |
7b5261bc KL |
1048 | * @throws UnsupportedEncodingException if an exception is thrown when |
1049 | * creating the InputStreamReader | |
b1589621 | 1050 | */ |
92554d64 | 1051 | public ECMA48Terminal(final Object listener, final InputStream input, |
7b5261bc KL |
1052 | final OutputStream output) throws UnsupportedEncodingException { |
1053 | ||
42873e30 | 1054 | resetParser(); |
7b5261bc KL |
1055 | mouse1 = false; |
1056 | mouse2 = false; | |
1057 | mouse3 = false; | |
1058 | stopReaderThread = false; | |
92554d64 | 1059 | this.listener = listener; |
7b5261bc KL |
1060 | |
1061 | if (input == null) { | |
1062 | // inputStream = System.in; | |
1063 | inputStream = new FileInputStream(FileDescriptor.in); | |
1064 | sttyRaw(); | |
1065 | setRawMode = true; | |
1066 | } else { | |
1067 | inputStream = input; | |
1068 | } | |
1069 | this.input = new InputStreamReader(inputStream, "UTF-8"); | |
1070 | ||
7b5261bc | 1071 | if (input instanceof SessionInfo) { |
ea91242c KL |
1072 | // This is a TelnetInputStream that exposes window size and |
1073 | // environment variables from the telnet layer. | |
7b5261bc KL |
1074 | sessionInfo = (SessionInfo) input; |
1075 | } | |
1076 | if (sessionInfo == null) { | |
1077 | if (input == null) { | |
1078 | // Reading right off the tty | |
1079 | sessionInfo = new TTYSessionInfo(); | |
1080 | } else { | |
1081 | sessionInfo = new TSessionInfo(); | |
1082 | } | |
1083 | } | |
1084 | ||
1085 | if (output == null) { | |
1086 | this.output = new PrintWriter(new OutputStreamWriter(System.out, | |
1087 | "UTF-8")); | |
1088 | } else { | |
1089 | this.output = new PrintWriter(new OutputStreamWriter(output, | |
1090 | "UTF-8")); | |
1091 | } | |
1092 | ||
a69ed767 KL |
1093 | // Request xterm report window dimensions in pixels |
1094 | this.output.printf("%s", xtermReportWindowPixelDimensions()); | |
1095 | ||
7b5261bc KL |
1096 | // Enable mouse reporting and metaSendsEscape |
1097 | this.output.printf("%s%s", mouse(true), xtermMetaSendsEscape(true)); | |
55b4f29b | 1098 | this.output.flush(); |
7b5261bc | 1099 | |
3e074355 KL |
1100 | // Query the screen size |
1101 | sessionInfo.queryWindowSize(); | |
1102 | setDimensions(sessionInfo.getWindowWidth(), | |
1103 | sessionInfo.getWindowHeight()); | |
1104 | ||
7b5261bc KL |
1105 | // Hang onto the window size |
1106 | windowResize = new TResizeEvent(TResizeEvent.Type.SCREEN, | |
1107 | sessionInfo.getWindowWidth(), sessionInfo.getWindowHeight()); | |
1108 | ||
e23ea538 | 1109 | reloadOptions(); |
a69ed767 | 1110 | |
7b5261bc KL |
1111 | // Spin up the input reader |
1112 | eventQueue = new LinkedList<TInputEvent>(); | |
1113 | readerThread = new Thread(this); | |
1114 | readerThread.start(); | |
42873e30 | 1115 | |
42873e30 KL |
1116 | // Clear the screen |
1117 | this.output.write(clearAll()); | |
1118 | this.output.flush(); | |
b1589621 KL |
1119 | } |
1120 | ||
6985c572 KL |
1121 | /** |
1122 | * Constructor sets up state for getEvent(). | |
1123 | * | |
1124 | * @param listener the object this backend needs to wake up when new | |
1125 | * input comes in | |
1126 | * @param input the InputStream underlying 'reader'. Its available() | |
1127 | * method is used to determine if reader.read() will block or not. | |
1128 | * @param reader a Reader connected to the remote user. | |
1129 | * @param writer a PrintWriter connected to the remote user. | |
1130 | * @param setRawMode if true, set System.in into raw mode with stty. | |
1131 | * This should in general not be used. It is here solely for Demo3, | |
1132 | * which uses System.in. | |
1133 | * @throws IllegalArgumentException if input, reader, or writer are null. | |
1134 | */ | |
1135 | public ECMA48Terminal(final Object listener, final InputStream input, | |
1136 | final Reader reader, final PrintWriter writer, | |
1137 | final boolean setRawMode) { | |
1138 | ||
1139 | if (input == null) { | |
1140 | throw new IllegalArgumentException("InputStream must be specified"); | |
1141 | } | |
1142 | if (reader == null) { | |
1143 | throw new IllegalArgumentException("Reader must be specified"); | |
1144 | } | |
1145 | if (writer == null) { | |
1146 | throw new IllegalArgumentException("Writer must be specified"); | |
1147 | } | |
42873e30 | 1148 | resetParser(); |
6985c572 KL |
1149 | mouse1 = false; |
1150 | mouse2 = false; | |
1151 | mouse3 = false; | |
1152 | stopReaderThread = false; | |
1153 | this.listener = listener; | |
1154 | ||
1155 | inputStream = input; | |
1156 | this.input = reader; | |
1157 | ||
1158 | if (setRawMode == true) { | |
1159 | sttyRaw(); | |
1160 | } | |
1161 | this.setRawMode = setRawMode; | |
1162 | ||
1163 | if (input instanceof SessionInfo) { | |
1164 | // This is a TelnetInputStream that exposes window size and | |
1165 | // environment variables from the telnet layer. | |
1166 | sessionInfo = (SessionInfo) input; | |
1167 | } | |
1168 | if (sessionInfo == null) { | |
31b7033c KL |
1169 | if (setRawMode == true) { |
1170 | // Reading right off the tty | |
1171 | sessionInfo = new TTYSessionInfo(); | |
1172 | } else { | |
1173 | sessionInfo = new TSessionInfo(); | |
1174 | } | |
6985c572 KL |
1175 | } |
1176 | ||
1177 | this.output = writer; | |
1178 | ||
a69ed767 KL |
1179 | // Request xterm report window dimensions in pixels |
1180 | this.output.printf("%s", xtermReportWindowPixelDimensions()); | |
1181 | ||
6985c572 KL |
1182 | // Enable mouse reporting and metaSendsEscape |
1183 | this.output.printf("%s%s", mouse(true), xtermMetaSendsEscape(true)); | |
1184 | this.output.flush(); | |
1185 | ||
3e074355 KL |
1186 | // Query the screen size |
1187 | sessionInfo.queryWindowSize(); | |
1188 | setDimensions(sessionInfo.getWindowWidth(), | |
1189 | sessionInfo.getWindowHeight()); | |
1190 | ||
6985c572 KL |
1191 | // Hang onto the window size |
1192 | windowResize = new TResizeEvent(TResizeEvent.Type.SCREEN, | |
1193 | sessionInfo.getWindowWidth(), sessionInfo.getWindowHeight()); | |
1194 | ||
e23ea538 | 1195 | reloadOptions(); |
a69ed767 | 1196 | |
6985c572 KL |
1197 | // Spin up the input reader |
1198 | eventQueue = new LinkedList<TInputEvent>(); | |
1199 | readerThread = new Thread(this); | |
1200 | readerThread.start(); | |
42873e30 | 1201 | |
42873e30 KL |
1202 | // Clear the screen |
1203 | this.output.write(clearAll()); | |
1204 | this.output.flush(); | |
6985c572 KL |
1205 | } |
1206 | ||
1207 | /** | |
1208 | * Constructor sets up state for getEvent(). | |
1209 | * | |
1210 | * @param listener the object this backend needs to wake up when new | |
1211 | * input comes in | |
1212 | * @param input the InputStream underlying 'reader'. Its available() | |
1213 | * method is used to determine if reader.read() will block or not. | |
1214 | * @param reader a Reader connected to the remote user. | |
1215 | * @param writer a PrintWriter connected to the remote user. | |
1216 | * @throws IllegalArgumentException if input, reader, or writer are null. | |
1217 | */ | |
1218 | public ECMA48Terminal(final Object listener, final InputStream input, | |
1219 | final Reader reader, final PrintWriter writer) { | |
1220 | ||
1221 | this(listener, input, reader, writer, false); | |
1222 | } | |
1223 | ||
d36057df KL |
1224 | // ------------------------------------------------------------------------ |
1225 | // LogicalScreen ---------------------------------------------------------- | |
1226 | // ------------------------------------------------------------------------ | |
1227 | ||
1228 | /** | |
1229 | * Set the window title. | |
1230 | * | |
1231 | * @param title the new title | |
1232 | */ | |
1233 | @Override | |
1234 | public void setTitle(final String title) { | |
1235 | output.write(getSetTitleString(title)); | |
1236 | flush(); | |
1237 | } | |
1238 | ||
1239 | /** | |
1240 | * Push the logical screen to the physical device. | |
1241 | */ | |
1242 | @Override | |
1243 | public void flushPhysical() { | |
a69ed767 | 1244 | StringBuilder sb = new StringBuilder(); |
d36057df KL |
1245 | if ((cursorVisible) |
1246 | && (cursorY >= 0) | |
1247 | && (cursorX >= 0) | |
1248 | && (cursorY <= height - 1) | |
1249 | && (cursorX <= width - 1) | |
1250 | ) { | |
a69ed767 KL |
1251 | flushString(sb); |
1252 | sb.append(cursor(true)); | |
1253 | sb.append(gotoXY(cursorX, cursorY)); | |
d36057df | 1254 | } else { |
a69ed767 KL |
1255 | sb.append(cursor(false)); |
1256 | flushString(sb); | |
d36057df | 1257 | } |
a69ed767 | 1258 | output.write(sb.toString()); |
d36057df KL |
1259 | flush(); |
1260 | } | |
1261 | ||
9696a8f6 KL |
1262 | /** |
1263 | * Resize the physical screen to match the logical screen dimensions. | |
1264 | */ | |
1265 | @Override | |
1266 | public void resizeToScreen() { | |
1267 | // Send dtterm/xterm sequences, which will probably not work because | |
1268 | // allowWindowOps is defaulted to false. | |
1269 | String resizeString = String.format("\033[8;%d;%dt", getHeight(), | |
1270 | getWidth()); | |
1271 | this.output.write(resizeString); | |
1272 | this.output.flush(); | |
1273 | } | |
1274 | ||
d36057df KL |
1275 | // ------------------------------------------------------------------------ |
1276 | // TerminalReader --------------------------------------------------------- | |
1277 | // ------------------------------------------------------------------------ | |
1278 | ||
1279 | /** | |
1280 | * Check if there are events in the queue. | |
1281 | * | |
1282 | * @return if true, getEvents() has something to return to the backend | |
1283 | */ | |
1284 | public boolean hasEvents() { | |
1285 | synchronized (eventQueue) { | |
1286 | return (eventQueue.size() > 0); | |
1287 | } | |
1288 | } | |
1289 | ||
1290 | /** | |
1291 | * Return any events in the IO queue. | |
1292 | * | |
1293 | * @param queue list to append new events to | |
1294 | */ | |
1295 | public void getEvents(final List<TInputEvent> queue) { | |
1296 | synchronized (eventQueue) { | |
1297 | if (eventQueue.size() > 0) { | |
1298 | synchronized (queue) { | |
1299 | queue.addAll(eventQueue); | |
1300 | } | |
1301 | eventQueue.clear(); | |
1302 | } | |
1303 | } | |
1304 | } | |
1305 | ||
b1589621 | 1306 | /** |
7b5261bc | 1307 | * Restore terminal to normal state. |
b1589621 | 1308 | */ |
42873e30 | 1309 | public void closeTerminal() { |
4328bb42 | 1310 | |
7b5261bc KL |
1311 | // System.err.println("=== shutdown() ==="); System.err.flush(); |
1312 | ||
1313 | // Tell the reader thread to stop looking at input | |
1314 | stopReaderThread = true; | |
1315 | try { | |
1316 | readerThread.join(); | |
1317 | } catch (InterruptedException e) { | |
a69ed767 KL |
1318 | if (debugToStderr) { |
1319 | e.printStackTrace(); | |
1320 | } | |
7b5261bc KL |
1321 | } |
1322 | ||
0525b2ed KL |
1323 | // Disable mouse reporting and show cursor. Defensive null check |
1324 | // here in case closeTerminal() is called twice. | |
1325 | if (output != null) { | |
1326 | output.printf("%s%s%s", mouse(false), cursor(true), normal()); | |
1327 | output.flush(); | |
1328 | } | |
7b5261bc KL |
1329 | |
1330 | if (setRawMode) { | |
1331 | sttyCooked(); | |
1332 | setRawMode = false; | |
1333 | // We don't close System.in/out | |
1334 | } else { | |
1335 | // Shut down the streams, this should wake up the reader thread | |
1336 | // and make it exit. | |
a69ed767 KL |
1337 | if (input != null) { |
1338 | try { | |
7b5261bc | 1339 | input.close(); |
a69ed767 KL |
1340 | } catch (IOException e) { |
1341 | // SQUASH | |
7b5261bc | 1342 | } |
a69ed767 KL |
1343 | input = null; |
1344 | } | |
1345 | if (output != null) { | |
1346 | output.close(); | |
1347 | output = null; | |
7b5261bc KL |
1348 | } |
1349 | } | |
b1589621 KL |
1350 | } |
1351 | ||
d36057df KL |
1352 | /** |
1353 | * Set listener to a different Object. | |
1354 | * | |
1355 | * @param listener the new listening object that run() wakes up on new | |
1356 | * input | |
1357 | */ | |
1358 | public void setListener(final Object listener) { | |
1359 | this.listener = listener; | |
1360 | } | |
1361 | ||
e23ea538 KL |
1362 | /** |
1363 | * Reload options from System properties. | |
1364 | */ | |
1365 | public void reloadOptions() { | |
1366 | // Permit RGB colors only if externally requested. | |
1367 | if (System.getProperty("jexer.ECMA48.rgbColor", | |
1368 | "false").equals("true") | |
1369 | ) { | |
1370 | doRgbColor = true; | |
1371 | } else { | |
1372 | doRgbColor = false; | |
1373 | } | |
1374 | ||
1375 | // Pull the system properties for sixel output. | |
1376 | if (System.getProperty("jexer.ECMA48.sixel", "true").equals("true")) { | |
1377 | sixel = true; | |
1378 | } else { | |
1379 | sixel = false; | |
1380 | } | |
1381 | } | |
1382 | ||
d36057df KL |
1383 | // ------------------------------------------------------------------------ |
1384 | // Runnable --------------------------------------------------------------- | |
1385 | // ------------------------------------------------------------------------ | |
1386 | ||
1387 | /** | |
1388 | * Read function runs on a separate thread. | |
1389 | */ | |
1390 | public void run() { | |
1391 | boolean done = false; | |
1392 | // available() will often return > 1, so we need to read in chunks to | |
1393 | // stay caught up. | |
1394 | char [] readBuffer = new char[128]; | |
1395 | List<TInputEvent> events = new LinkedList<TInputEvent>(); | |
1396 | ||
1397 | while (!done && !stopReaderThread) { | |
1398 | try { | |
1399 | // We assume that if inputStream has bytes available, then | |
1400 | // input won't block on read(). | |
1401 | int n = inputStream.available(); | |
1402 | ||
1403 | /* | |
1404 | System.err.printf("inputStream.available(): %d\n", n); | |
1405 | System.err.flush(); | |
1406 | */ | |
1407 | ||
1408 | if (n > 0) { | |
1409 | if (readBuffer.length < n) { | |
1410 | // The buffer wasn't big enough, make it huger | |
1411 | readBuffer = new char[readBuffer.length * 2]; | |
1412 | } | |
1413 | ||
1414 | // System.err.printf("BEFORE read()\n"); System.err.flush(); | |
1415 | ||
1416 | int rc = input.read(readBuffer, 0, readBuffer.length); | |
1417 | ||
1418 | /* | |
1419 | System.err.printf("AFTER read() %d\n", rc); | |
1420 | System.err.flush(); | |
1421 | */ | |
1422 | ||
1423 | if (rc == -1) { | |
1424 | // This is EOF | |
1425 | done = true; | |
1426 | } else { | |
1427 | for (int i = 0; i < rc; i++) { | |
1428 | int ch = readBuffer[i]; | |
1429 | processChar(events, (char)ch); | |
1430 | } | |
1431 | getIdleEvents(events); | |
1432 | if (events.size() > 0) { | |
1433 | // Add to the queue for the backend thread to | |
1434 | // be able to obtain. | |
1435 | synchronized (eventQueue) { | |
1436 | eventQueue.addAll(events); | |
1437 | } | |
1438 | if (listener != null) { | |
1439 | synchronized (listener) { | |
1440 | listener.notifyAll(); | |
1441 | } | |
1442 | } | |
1443 | events.clear(); | |
1444 | } | |
1445 | } | |
1446 | } else { | |
1447 | getIdleEvents(events); | |
1448 | if (events.size() > 0) { | |
1449 | synchronized (eventQueue) { | |
1450 | eventQueue.addAll(events); | |
1451 | } | |
1452 | if (listener != null) { | |
1453 | synchronized (listener) { | |
1454 | listener.notifyAll(); | |
1455 | } | |
1456 | } | |
1457 | events.clear(); | |
1458 | } | |
1459 | ||
eb0d6c82 KL |
1460 | if (output.checkError()) { |
1461 | // This is EOF. | |
1462 | done = true; | |
1463 | } | |
1464 | ||
d36057df KL |
1465 | // Wait 20 millis for more data |
1466 | Thread.sleep(20); | |
1467 | } | |
1468 | // System.err.println("end while loop"); System.err.flush(); | |
1469 | } catch (InterruptedException e) { | |
1470 | // SQUASH | |
1471 | } catch (IOException e) { | |
1472 | e.printStackTrace(); | |
1473 | done = true; | |
1474 | } | |
1475 | } // while ((done == false) && (stopReaderThread == false)) | |
eb0d6c82 | 1476 | |
abb84744 KL |
1477 | // Pass an event up to TApplication to tell it this Backend is done. |
1478 | synchronized (eventQueue) { | |
1479 | eventQueue.add(new TCommandEvent(cmBackendDisconnect)); | |
1480 | } | |
1481 | if (listener != null) { | |
1482 | synchronized (listener) { | |
1483 | listener.notifyAll(); | |
1484 | } | |
1485 | } | |
eb0d6c82 | 1486 | |
d4bcb88c | 1487 | // System.err.println("*** run() exiting..."); System.err.flush(); |
d36057df KL |
1488 | } |
1489 | ||
1490 | // ------------------------------------------------------------------------ | |
1491 | // ECMA48Terminal --------------------------------------------------------- | |
1492 | // ------------------------------------------------------------------------ | |
1493 | ||
a69ed767 KL |
1494 | /** |
1495 | * Get the width of a character cell in pixels. | |
1496 | * | |
1497 | * @return the width in pixels of a character cell | |
1498 | */ | |
1499 | public int getTextWidth() { | |
1500 | return (widthPixels / sessionInfo.getWindowWidth()); | |
1501 | } | |
1502 | ||
1503 | /** | |
1504 | * Get the height of a character cell in pixels. | |
1505 | * | |
1506 | * @return the height in pixels of a character cell | |
1507 | */ | |
1508 | public int getTextHeight() { | |
1509 | return (heightPixels / sessionInfo.getWindowHeight()); | |
1510 | } | |
1511 | ||
d36057df KL |
1512 | /** |
1513 | * Getter for sessionInfo. | |
1514 | * | |
1515 | * @return the SessionInfo | |
1516 | */ | |
1517 | public SessionInfo getSessionInfo() { | |
1518 | return sessionInfo; | |
1519 | } | |
1520 | ||
1521 | /** | |
1522 | * Get the output writer. | |
1523 | * | |
1524 | * @return the Writer | |
1525 | */ | |
1526 | public PrintWriter getOutput() { | |
1527 | return output; | |
1528 | } | |
1529 | ||
1530 | /** | |
1531 | * Call 'stty' to set cooked mode. | |
1532 | * | |
1533 | * <p>Actually executes '/bin/sh -c stty sane cooked < /dev/tty' | |
1534 | */ | |
1535 | private void sttyCooked() { | |
1536 | doStty(false); | |
1537 | } | |
1538 | ||
1539 | /** | |
1540 | * Call 'stty' to set raw mode. | |
1541 | * | |
1542 | * <p>Actually executes '/bin/sh -c stty -ignbrk -brkint -parmrk -istrip | |
1543 | * -inlcr -igncr -icrnl -ixon -opost -echo -echonl -icanon -isig -iexten | |
1544 | * -parenb cs8 min 1 < /dev/tty' | |
1545 | */ | |
1546 | private void sttyRaw() { | |
1547 | doStty(true); | |
1548 | } | |
1549 | ||
1550 | /** | |
1551 | * Call 'stty' to set raw or cooked mode. | |
1552 | * | |
1553 | * @param mode if true, set raw mode, otherwise set cooked mode | |
1554 | */ | |
1555 | private void doStty(final boolean mode) { | |
1556 | String [] cmdRaw = { | |
1557 | "/bin/sh", "-c", "stty -ignbrk -brkint -parmrk -istrip -inlcr -igncr -icrnl -ixon -opost -echo -echonl -icanon -isig -iexten -parenb cs8 min 1 < /dev/tty" | |
1558 | }; | |
1559 | String [] cmdCooked = { | |
1560 | "/bin/sh", "-c", "stty sane cooked < /dev/tty" | |
1561 | }; | |
1562 | try { | |
1563 | Process process; | |
1564 | if (mode) { | |
1565 | process = Runtime.getRuntime().exec(cmdRaw); | |
1566 | } else { | |
1567 | process = Runtime.getRuntime().exec(cmdCooked); | |
1568 | } | |
1569 | BufferedReader in = new BufferedReader(new InputStreamReader(process.getInputStream(), "UTF-8")); | |
1570 | String line = in.readLine(); | |
1571 | if ((line != null) && (line.length() > 0)) { | |
1572 | System.err.println("WEIRD?! Normal output from stty: " + line); | |
1573 | } | |
1574 | while (true) { | |
1575 | BufferedReader err = new BufferedReader(new InputStreamReader(process.getErrorStream(), "UTF-8")); | |
1576 | line = err.readLine(); | |
1577 | if ((line != null) && (line.length() > 0)) { | |
1578 | System.err.println("Error output from stty: " + line); | |
1579 | } | |
1580 | try { | |
1581 | process.waitFor(); | |
1582 | break; | |
1583 | } catch (InterruptedException e) { | |
a69ed767 KL |
1584 | if (debugToStderr) { |
1585 | e.printStackTrace(); | |
1586 | } | |
d36057df KL |
1587 | } |
1588 | } | |
1589 | int rc = process.exitValue(); | |
1590 | if (rc != 0) { | |
1591 | System.err.println("stty returned error code: " + rc); | |
1592 | } | |
1593 | } catch (IOException e) { | |
1594 | e.printStackTrace(); | |
1595 | } | |
1596 | } | |
1597 | ||
b1589621 | 1598 | /** |
7b5261bc | 1599 | * Flush output. |
b1589621 KL |
1600 | */ |
1601 | public void flush() { | |
7b5261bc | 1602 | output.flush(); |
b1589621 KL |
1603 | } |
1604 | ||
42873e30 KL |
1605 | /** |
1606 | * Perform a somewhat-optimal rendering of a line. | |
1607 | * | |
1608 | * @param y row coordinate. 0 is the top-most row. | |
1609 | * @param sb StringBuilder to write escape sequences to | |
1610 | * @param lastAttr cell attributes from the last call to flushLine | |
1611 | */ | |
1612 | private void flushLine(final int y, final StringBuilder sb, | |
1613 | CellAttributes lastAttr) { | |
1614 | ||
1615 | int lastX = -1; | |
1616 | int textEnd = 0; | |
1617 | for (int x = 0; x < width; x++) { | |
1618 | Cell lCell = logical[x][y]; | |
1619 | if (!lCell.isBlank()) { | |
1620 | textEnd = x; | |
1621 | } | |
1622 | } | |
1623 | // Push textEnd to first column beyond the text area | |
1624 | textEnd++; | |
1625 | ||
1626 | // DEBUG | |
1627 | // reallyCleared = true; | |
1628 | ||
a69ed767 KL |
1629 | boolean hasImage = false; |
1630 | ||
42873e30 KL |
1631 | for (int x = 0; x < width; x++) { |
1632 | Cell lCell = logical[x][y]; | |
1633 | Cell pCell = physical[x][y]; | |
1634 | ||
1635 | if (!lCell.equals(pCell) || reallyCleared) { | |
1636 | ||
1637 | if (debugToStderr) { | |
1638 | System.err.printf("\n--\n"); | |
1639 | System.err.printf(" Y: %d X: %d\n", y, x); | |
1640 | System.err.printf(" lCell: %s\n", lCell); | |
1641 | System.err.printf(" pCell: %s\n", pCell); | |
1642 | System.err.printf(" ==== \n"); | |
1643 | } | |
1644 | ||
1645 | if (lastAttr == null) { | |
1646 | lastAttr = new CellAttributes(); | |
1647 | sb.append(normal()); | |
1648 | } | |
1649 | ||
1650 | // Place the cell | |
1651 | if ((lastX != (x - 1)) || (lastX == -1)) { | |
1652 | // Advancing at least one cell, or the first gotoXY | |
1653 | sb.append(gotoXY(x, y)); | |
1654 | } | |
1655 | ||
1656 | assert (lastAttr != null); | |
1657 | ||
1658 | if ((x == textEnd) && (textEnd < width - 1)) { | |
1659 | assert (lCell.isBlank()); | |
1660 | ||
1661 | for (int i = x; i < width; i++) { | |
1662 | assert (logical[i][y].isBlank()); | |
1663 | // Physical is always updated | |
1664 | physical[i][y].reset(); | |
1665 | } | |
1666 | ||
1667 | // Clear remaining line | |
1668 | sb.append(clearRemainingLine()); | |
1669 | lastAttr.reset(); | |
1670 | return; | |
1671 | } | |
1672 | ||
a69ed767 KL |
1673 | // Image cell: bypass the rest of the loop, it is not |
1674 | // rendered here. | |
1675 | if (lCell.isImage()) { | |
1676 | hasImage = true; | |
1677 | ||
1678 | // Save the last rendered cell | |
1679 | lastX = x; | |
1680 | ||
1681 | // Physical is always updated | |
1682 | physical[x][y].setTo(lCell); | |
1683 | continue; | |
1684 | } | |
1685 | ||
1686 | assert (!lCell.isImage()); | |
1687 | if (hasImage) { | |
1688 | hasImage = false; | |
1689 | sb.append(gotoXY(x, y)); | |
1690 | } | |
1691 | ||
42873e30 KL |
1692 | // Now emit only the modified attributes |
1693 | if ((lCell.getForeColor() != lastAttr.getForeColor()) | |
1694 | && (lCell.getBackColor() != lastAttr.getBackColor()) | |
051e2913 | 1695 | && (!lCell.isRGB()) |
42873e30 KL |
1696 | && (lCell.isBold() == lastAttr.isBold()) |
1697 | && (lCell.isReverse() == lastAttr.isReverse()) | |
1698 | && (lCell.isUnderline() == lastAttr.isUnderline()) | |
1699 | && (lCell.isBlink() == lastAttr.isBlink()) | |
1700 | ) { | |
1701 | // Both colors changed, attributes the same | |
1702 | sb.append(color(lCell.isBold(), | |
1703 | lCell.getForeColor(), lCell.getBackColor())); | |
1704 | ||
1705 | if (debugToStderr) { | |
1706 | System.err.printf("1 Change only fore/back colors\n"); | |
1707 | } | |
051e2913 KL |
1708 | |
1709 | } else if (lCell.isRGB() | |
1710 | && (lCell.getForeColorRGB() != lastAttr.getForeColorRGB()) | |
1711 | && (lCell.getBackColorRGB() != lastAttr.getBackColorRGB()) | |
1712 | && (lCell.isBold() == lastAttr.isBold()) | |
1713 | && (lCell.isReverse() == lastAttr.isReverse()) | |
1714 | && (lCell.isUnderline() == lastAttr.isUnderline()) | |
1715 | && (lCell.isBlink() == lastAttr.isBlink()) | |
1716 | ) { | |
1717 | // Both colors changed, attributes the same | |
1718 | sb.append(colorRGB(lCell.getForeColorRGB(), | |
1719 | lCell.getBackColorRGB())); | |
1720 | ||
1721 | if (debugToStderr) { | |
1722 | System.err.printf("1 Change only fore/back colors (RGB)\n"); | |
1723 | } | |
42873e30 KL |
1724 | } else if ((lCell.getForeColor() != lastAttr.getForeColor()) |
1725 | && (lCell.getBackColor() != lastAttr.getBackColor()) | |
051e2913 | 1726 | && (!lCell.isRGB()) |
42873e30 KL |
1727 | && (lCell.isBold() != lastAttr.isBold()) |
1728 | && (lCell.isReverse() != lastAttr.isReverse()) | |
1729 | && (lCell.isUnderline() != lastAttr.isUnderline()) | |
1730 | && (lCell.isBlink() != lastAttr.isBlink()) | |
1731 | ) { | |
1732 | // Everything is different | |
1733 | sb.append(color(lCell.getForeColor(), | |
1734 | lCell.getBackColor(), | |
1735 | lCell.isBold(), lCell.isReverse(), | |
1736 | lCell.isBlink(), | |
1737 | lCell.isUnderline())); | |
1738 | ||
1739 | if (debugToStderr) { | |
1740 | System.err.printf("2 Set all attributes\n"); | |
1741 | } | |
1742 | } else if ((lCell.getForeColor() != lastAttr.getForeColor()) | |
1743 | && (lCell.getBackColor() == lastAttr.getBackColor()) | |
051e2913 | 1744 | && (!lCell.isRGB()) |
42873e30 KL |
1745 | && (lCell.isBold() == lastAttr.isBold()) |
1746 | && (lCell.isReverse() == lastAttr.isReverse()) | |
1747 | && (lCell.isUnderline() == lastAttr.isUnderline()) | |
1748 | && (lCell.isBlink() == lastAttr.isBlink()) | |
1749 | ) { | |
1750 | ||
1751 | // Attributes same, foreColor different | |
1752 | sb.append(color(lCell.isBold(), | |
1753 | lCell.getForeColor(), true)); | |
1754 | ||
1755 | if (debugToStderr) { | |
1756 | System.err.printf("3 Change foreColor\n"); | |
1757 | } | |
051e2913 KL |
1758 | } else if (lCell.isRGB() |
1759 | && (lCell.getForeColorRGB() != lastAttr.getForeColorRGB()) | |
1760 | && (lCell.getBackColorRGB() == lastAttr.getBackColorRGB()) | |
1761 | && (lCell.getForeColorRGB() >= 0) | |
1762 | && (lCell.getBackColorRGB() >= 0) | |
1763 | && (lCell.isBold() == lastAttr.isBold()) | |
1764 | && (lCell.isReverse() == lastAttr.isReverse()) | |
1765 | && (lCell.isUnderline() == lastAttr.isUnderline()) | |
1766 | && (lCell.isBlink() == lastAttr.isBlink()) | |
1767 | ) { | |
1768 | // Attributes same, foreColor different | |
1769 | sb.append(colorRGB(lCell.getForeColorRGB(), true)); | |
1770 | ||
1771 | if (debugToStderr) { | |
1772 | System.err.printf("3 Change foreColor (RGB)\n"); | |
1773 | } | |
42873e30 KL |
1774 | } else if ((lCell.getForeColor() == lastAttr.getForeColor()) |
1775 | && (lCell.getBackColor() != lastAttr.getBackColor()) | |
051e2913 | 1776 | && (!lCell.isRGB()) |
42873e30 KL |
1777 | && (lCell.isBold() == lastAttr.isBold()) |
1778 | && (lCell.isReverse() == lastAttr.isReverse()) | |
1779 | && (lCell.isUnderline() == lastAttr.isUnderline()) | |
1780 | && (lCell.isBlink() == lastAttr.isBlink()) | |
1781 | ) { | |
1782 | // Attributes same, backColor different | |
1783 | sb.append(color(lCell.isBold(), | |
1784 | lCell.getBackColor(), false)); | |
1785 | ||
1786 | if (debugToStderr) { | |
1787 | System.err.printf("4 Change backColor\n"); | |
1788 | } | |
051e2913 KL |
1789 | } else if (lCell.isRGB() |
1790 | && (lCell.getForeColorRGB() == lastAttr.getForeColorRGB()) | |
1791 | && (lCell.getBackColorRGB() != lastAttr.getBackColorRGB()) | |
1792 | && (lCell.isBold() == lastAttr.isBold()) | |
1793 | && (lCell.isReverse() == lastAttr.isReverse()) | |
1794 | && (lCell.isUnderline() == lastAttr.isUnderline()) | |
1795 | && (lCell.isBlink() == lastAttr.isBlink()) | |
1796 | ) { | |
1797 | // Attributes same, foreColor different | |
1798 | sb.append(colorRGB(lCell.getBackColorRGB(), false)); | |
1799 | ||
1800 | if (debugToStderr) { | |
1801 | System.err.printf("4 Change backColor (RGB)\n"); | |
1802 | } | |
42873e30 KL |
1803 | } else if ((lCell.getForeColor() == lastAttr.getForeColor()) |
1804 | && (lCell.getBackColor() == lastAttr.getBackColor()) | |
051e2913 KL |
1805 | && (lCell.getForeColorRGB() == lastAttr.getForeColorRGB()) |
1806 | && (lCell.getBackColorRGB() == lastAttr.getBackColorRGB()) | |
42873e30 KL |
1807 | && (lCell.isBold() == lastAttr.isBold()) |
1808 | && (lCell.isReverse() == lastAttr.isReverse()) | |
1809 | && (lCell.isUnderline() == lastAttr.isUnderline()) | |
1810 | && (lCell.isBlink() == lastAttr.isBlink()) | |
1811 | ) { | |
1812 | ||
1813 | // All attributes the same, just print the char | |
1814 | // NOP | |
1815 | ||
1816 | if (debugToStderr) { | |
1817 | System.err.printf("5 Only emit character\n"); | |
1818 | } | |
1819 | } else { | |
1820 | // Just reset everything again | |
051e2913 KL |
1821 | if (!lCell.isRGB()) { |
1822 | sb.append(color(lCell.getForeColor(), | |
1823 | lCell.getBackColor(), | |
1824 | lCell.isBold(), | |
1825 | lCell.isReverse(), | |
1826 | lCell.isBlink(), | |
1827 | lCell.isUnderline())); | |
1828 | ||
1829 | if (debugToStderr) { | |
1830 | System.err.printf("6 Change all attributes\n"); | |
1831 | } | |
1832 | } else { | |
1833 | sb.append(colorRGB(lCell.getForeColorRGB(), | |
1834 | lCell.getBackColorRGB(), | |
1835 | lCell.isBold(), | |
1836 | lCell.isReverse(), | |
1837 | lCell.isBlink(), | |
1838 | lCell.isUnderline())); | |
1839 | if (debugToStderr) { | |
1840 | System.err.printf("6 Change all attributes (RGB)\n"); | |
1841 | } | |
42873e30 | 1842 | } |
051e2913 | 1843 | |
42873e30 KL |
1844 | } |
1845 | // Emit the character | |
1846 | sb.append(lCell.getChar()); | |
1847 | ||
1848 | // Save the last rendered cell | |
1849 | lastX = x; | |
1850 | lastAttr.setTo(lCell); | |
1851 | ||
1852 | // Physical is always updated | |
1853 | physical[x][y].setTo(lCell); | |
1854 | ||
1855 | } // if (!lCell.equals(pCell) || (reallyCleared == true)) | |
1856 | ||
1857 | } // for (int x = 0; x < width; x++) | |
1858 | } | |
1859 | ||
1860 | /** | |
1861 | * Render the screen to a string that can be emitted to something that | |
1862 | * knows how to process ECMA-48/ANSI X3.64 escape sequences. | |
1863 | * | |
a69ed767 | 1864 | * @param sb StringBuilder to write escape sequences to |
42873e30 KL |
1865 | * @return escape sequences string that provides the updates to the |
1866 | * physical screen | |
1867 | */ | |
a69ed767 | 1868 | private String flushString(final StringBuilder sb) { |
42873e30 KL |
1869 | CellAttributes attr = null; |
1870 | ||
42873e30 KL |
1871 | if (reallyCleared) { |
1872 | attr = new CellAttributes(); | |
1873 | sb.append(clearAll()); | |
1874 | } | |
1875 | ||
a69ed767 KL |
1876 | /* |
1877 | * For sixel support, draw all of the sixel output first, and then | |
1878 | * draw everything else afterwards. This works OK, but performance | |
1879 | * is still a drag on larger pictures. | |
1880 | */ | |
1881 | for (int y = 0; y < height; y++) { | |
1882 | for (int x = 0; x < width; x++) { | |
1883 | // If physical had non-image data that is now image data, the | |
1884 | // entire row must be redrawn. | |
1885 | Cell lCell = logical[x][y]; | |
1886 | Cell pCell = physical[x][y]; | |
1887 | if (lCell.isImage() && !pCell.isImage()) { | |
1888 | unsetImageRow(y); | |
1889 | break; | |
1890 | } | |
1891 | } | |
1892 | } | |
1893 | for (int y = 0; y < height; y++) { | |
1894 | for (int x = 0; x < width; x++) { | |
1895 | Cell lCell = logical[x][y]; | |
1896 | Cell pCell = physical[x][y]; | |
1897 | ||
1898 | if (!lCell.isImage()) { | |
1899 | continue; | |
1900 | } | |
1901 | ||
1902 | int left = x; | |
1903 | int right = x; | |
1904 | while ((right < width) | |
1905 | && (logical[right][y].isImage()) | |
1906 | && (!logical[right][y].equals(physical[right][y]) | |
1907 | || reallyCleared) | |
1908 | ) { | |
1909 | right++; | |
1910 | } | |
1911 | ArrayList<Cell> cellsToDraw = new ArrayList<Cell>(); | |
1912 | for (int i = 0; i < (right - x); i++) { | |
1913 | assert (logical[x + i][y].isImage()); | |
1914 | cellsToDraw.add(logical[x + i][y]); | |
1915 | ||
1916 | // Physical is always updated. | |
1917 | physical[x + i][y].setTo(lCell); | |
1918 | } | |
1919 | if (cellsToDraw.size() > 0) { | |
1920 | sb.append(toSixel(x, y, cellsToDraw)); | |
1921 | } | |
1922 | ||
1923 | x = right; | |
1924 | } | |
1925 | } | |
1926 | ||
1927 | // Draw the text part now. | |
42873e30 KL |
1928 | for (int y = 0; y < height; y++) { |
1929 | flushLine(y, sb, attr); | |
1930 | } | |
1931 | ||
42873e30 KL |
1932 | reallyCleared = false; |
1933 | ||
1934 | String result = sb.toString(); | |
1935 | if (debugToStderr) { | |
1936 | System.err.printf("flushString(): %s\n", result); | |
1937 | } | |
1938 | return result; | |
1939 | } | |
1940 | ||
b1589621 | 1941 | /** |
7b5261bc | 1942 | * Reset keyboard/mouse input parser. |
b1589621 | 1943 | */ |
42873e30 | 1944 | private void resetParser() { |
7b5261bc KL |
1945 | state = ParseState.GROUND; |
1946 | params = new ArrayList<String>(); | |
7b5261bc KL |
1947 | params.clear(); |
1948 | params.add(""); | |
b1589621 KL |
1949 | } |
1950 | ||
1951 | /** | |
1952 | * Produce a control character or one of the special ones (ENTER, TAB, | |
7b5261bc | 1953 | * etc.). |
b1589621 KL |
1954 | * |
1955 | * @param ch Unicode code point | |
b299e69c | 1956 | * @param alt if true, set alt on the TKeypress |
7b5261bc | 1957 | * @return one TKeypress event, either a control character (e.g. isKey == |
b1589621 KL |
1958 | * false, ch == 'A', ctrl == true), or a special key (e.g. isKey == true, |
1959 | * fnKey == ESC) | |
1960 | */ | |
b299e69c | 1961 | private TKeypressEvent controlChar(final char ch, final boolean alt) { |
7b5261bc KL |
1962 | // System.err.printf("controlChar: %02x\n", ch); |
1963 | ||
1964 | switch (ch) { | |
1965 | case 0x0D: | |
1966 | // Carriage return --> ENTER | |
b299e69c | 1967 | return new TKeypressEvent(kbEnter, alt, false, false); |
7b5261bc KL |
1968 | case 0x0A: |
1969 | // Linefeed --> ENTER | |
b299e69c | 1970 | return new TKeypressEvent(kbEnter, alt, false, false); |
7b5261bc KL |
1971 | case 0x1B: |
1972 | // ESC | |
b299e69c | 1973 | return new TKeypressEvent(kbEsc, alt, false, false); |
7b5261bc KL |
1974 | case '\t': |
1975 | // TAB | |
b299e69c | 1976 | return new TKeypressEvent(kbTab, alt, false, false); |
7b5261bc KL |
1977 | default: |
1978 | // Make all other control characters come back as the alphabetic | |
1979 | // character with the ctrl field set. So SOH would be 'A' + | |
1980 | // ctrl. | |
b299e69c KL |
1981 | return new TKeypressEvent(false, 0, (char)(ch + 0x40), |
1982 | alt, true, false); | |
7b5261bc | 1983 | } |
b1589621 KL |
1984 | } |
1985 | ||
1986 | /** | |
1987 | * Produce special key from CSI Pn ; Pm ; ... ~ | |
1988 | * | |
1989 | * @return one KEYPRESS event representing a special key | |
1990 | */ | |
1991 | private TInputEvent csiFnKey() { | |
7b5261bc | 1992 | int key = 0; |
7b5261bc KL |
1993 | if (params.size() > 0) { |
1994 | key = Integer.parseInt(params.get(0)); | |
1995 | } | |
b299e69c KL |
1996 | boolean alt = false; |
1997 | boolean ctrl = false; | |
1998 | boolean shift = false; | |
32437017 KL |
1999 | if (params.size() > 1) { |
2000 | shift = csiIsShift(params.get(1)); | |
2001 | alt = csiIsAlt(params.get(1)); | |
2002 | ctrl = csiIsCtrl(params.get(1)); | |
b299e69c | 2003 | } |
d4a29741 | 2004 | |
b299e69c KL |
2005 | switch (key) { |
2006 | case 1: | |
2007 | return new TKeypressEvent(kbHome, alt, ctrl, shift); | |
2008 | case 2: | |
2009 | return new TKeypressEvent(kbIns, alt, ctrl, shift); | |
2010 | case 3: | |
2011 | return new TKeypressEvent(kbDel, alt, ctrl, shift); | |
2012 | case 4: | |
2013 | return new TKeypressEvent(kbEnd, alt, ctrl, shift); | |
2014 | case 5: | |
2015 | return new TKeypressEvent(kbPgUp, alt, ctrl, shift); | |
2016 | case 6: | |
2017 | return new TKeypressEvent(kbPgDn, alt, ctrl, shift); | |
2018 | case 15: | |
2019 | return new TKeypressEvent(kbF5, alt, ctrl, shift); | |
2020 | case 17: | |
2021 | return new TKeypressEvent(kbF6, alt, ctrl, shift); | |
2022 | case 18: | |
2023 | return new TKeypressEvent(kbF7, alt, ctrl, shift); | |
2024 | case 19: | |
2025 | return new TKeypressEvent(kbF8, alt, ctrl, shift); | |
2026 | case 20: | |
2027 | return new TKeypressEvent(kbF9, alt, ctrl, shift); | |
2028 | case 21: | |
2029 | return new TKeypressEvent(kbF10, alt, ctrl, shift); | |
2030 | case 23: | |
2031 | return new TKeypressEvent(kbF11, alt, ctrl, shift); | |
2032 | case 24: | |
2033 | return new TKeypressEvent(kbF12, alt, ctrl, shift); | |
7b5261bc KL |
2034 | default: |
2035 | // Unknown | |
2036 | return null; | |
2037 | } | |
b1589621 KL |
2038 | } |
2039 | ||
2040 | /** | |
2041 | * Produce mouse events based on "Any event tracking" and UTF-8 | |
2042 | * coordinates. See | |
2043 | * http://invisible-island.net/xterm/ctlseqs/ctlseqs.html#Mouse%20Tracking | |
2044 | * | |
2045 | * @return a MOUSE_MOTION, MOUSE_UP, or MOUSE_DOWN event | |
2046 | */ | |
2047 | private TInputEvent parseMouse() { | |
7b5261bc KL |
2048 | int buttons = params.get(0).charAt(0) - 32; |
2049 | int x = params.get(0).charAt(1) - 32 - 1; | |
2050 | int y = params.get(0).charAt(2) - 32 - 1; | |
2051 | ||
2052 | // Clamp X and Y to the physical screen coordinates. | |
2053 | if (x >= windowResize.getWidth()) { | |
2054 | x = windowResize.getWidth() - 1; | |
2055 | } | |
2056 | if (y >= windowResize.getHeight()) { | |
2057 | y = windowResize.getHeight() - 1; | |
2058 | } | |
2059 | ||
d4a29741 KL |
2060 | TMouseEvent.Type eventType = TMouseEvent.Type.MOUSE_DOWN; |
2061 | boolean eventMouse1 = false; | |
2062 | boolean eventMouse2 = false; | |
2063 | boolean eventMouse3 = false; | |
2064 | boolean eventMouseWheelUp = false; | |
2065 | boolean eventMouseWheelDown = false; | |
7b5261bc KL |
2066 | |
2067 | // System.err.printf("buttons: %04x\r\n", buttons); | |
2068 | ||
2069 | switch (buttons) { | |
2070 | case 0: | |
d4a29741 | 2071 | eventMouse1 = true; |
7b5261bc KL |
2072 | mouse1 = true; |
2073 | break; | |
2074 | case 1: | |
d4a29741 | 2075 | eventMouse2 = true; |
7b5261bc KL |
2076 | mouse2 = true; |
2077 | break; | |
2078 | case 2: | |
d4a29741 | 2079 | eventMouse3 = true; |
7b5261bc KL |
2080 | mouse3 = true; |
2081 | break; | |
2082 | case 3: | |
2083 | // Release or Move | |
2084 | if (!mouse1 && !mouse2 && !mouse3) { | |
d4a29741 | 2085 | eventType = TMouseEvent.Type.MOUSE_MOTION; |
7b5261bc | 2086 | } else { |
d4a29741 | 2087 | eventType = TMouseEvent.Type.MOUSE_UP; |
7b5261bc KL |
2088 | } |
2089 | if (mouse1) { | |
2090 | mouse1 = false; | |
d4a29741 | 2091 | eventMouse1 = true; |
7b5261bc KL |
2092 | } |
2093 | if (mouse2) { | |
2094 | mouse2 = false; | |
d4a29741 | 2095 | eventMouse2 = true; |
7b5261bc KL |
2096 | } |
2097 | if (mouse3) { | |
2098 | mouse3 = false; | |
d4a29741 | 2099 | eventMouse3 = true; |
7b5261bc KL |
2100 | } |
2101 | break; | |
2102 | ||
2103 | case 32: | |
2104 | // Dragging with mouse1 down | |
d4a29741 | 2105 | eventMouse1 = true; |
7b5261bc | 2106 | mouse1 = true; |
d4a29741 | 2107 | eventType = TMouseEvent.Type.MOUSE_MOTION; |
7b5261bc KL |
2108 | break; |
2109 | ||
2110 | case 33: | |
2111 | // Dragging with mouse2 down | |
d4a29741 | 2112 | eventMouse2 = true; |
7b5261bc | 2113 | mouse2 = true; |
d4a29741 | 2114 | eventType = TMouseEvent.Type.MOUSE_MOTION; |
7b5261bc KL |
2115 | break; |
2116 | ||
2117 | case 34: | |
2118 | // Dragging with mouse3 down | |
d4a29741 | 2119 | eventMouse3 = true; |
7b5261bc | 2120 | mouse3 = true; |
d4a29741 | 2121 | eventType = TMouseEvent.Type.MOUSE_MOTION; |
7b5261bc KL |
2122 | break; |
2123 | ||
2124 | case 96: | |
2125 | // Dragging with mouse2 down after wheelUp | |
d4a29741 | 2126 | eventMouse2 = true; |
7b5261bc | 2127 | mouse2 = true; |
d4a29741 | 2128 | eventType = TMouseEvent.Type.MOUSE_MOTION; |
7b5261bc KL |
2129 | break; |
2130 | ||
2131 | case 97: | |
2132 | // Dragging with mouse2 down after wheelDown | |
d4a29741 | 2133 | eventMouse2 = true; |
7b5261bc | 2134 | mouse2 = true; |
d4a29741 | 2135 | eventType = TMouseEvent.Type.MOUSE_MOTION; |
7b5261bc KL |
2136 | break; |
2137 | ||
2138 | case 64: | |
d4a29741 | 2139 | eventMouseWheelUp = true; |
7b5261bc KL |
2140 | break; |
2141 | ||
2142 | case 65: | |
d4a29741 | 2143 | eventMouseWheelDown = true; |
7b5261bc KL |
2144 | break; |
2145 | ||
2146 | default: | |
2147 | // Unknown, just make it motion | |
d4a29741 | 2148 | eventType = TMouseEvent.Type.MOUSE_MOTION; |
7b5261bc KL |
2149 | break; |
2150 | } | |
d4a29741 KL |
2151 | return new TMouseEvent(eventType, x, y, x, y, |
2152 | eventMouse1, eventMouse2, eventMouse3, | |
2153 | eventMouseWheelUp, eventMouseWheelDown); | |
b1589621 KL |
2154 | } |
2155 | ||
b5f2a6db KL |
2156 | /** |
2157 | * Produce mouse events based on "Any event tracking" and SGR | |
2158 | * coordinates. See | |
2159 | * http://invisible-island.net/xterm/ctlseqs/ctlseqs.html#Mouse%20Tracking | |
2160 | * | |
2161 | * @param release if true, this was a release ('m') | |
2162 | * @return a MOUSE_MOTION, MOUSE_UP, or MOUSE_DOWN event | |
2163 | */ | |
2164 | private TInputEvent parseMouseSGR(final boolean release) { | |
2165 | // SGR extended coordinates - mode 1006 | |
2166 | if (params.size() < 3) { | |
2167 | // Invalid position, bail out. | |
2168 | return null; | |
2169 | } | |
2170 | int buttons = Integer.parseInt(params.get(0)); | |
2171 | int x = Integer.parseInt(params.get(1)) - 1; | |
2172 | int y = Integer.parseInt(params.get(2)) - 1; | |
2173 | ||
2174 | // Clamp X and Y to the physical screen coordinates. | |
2175 | if (x >= windowResize.getWidth()) { | |
2176 | x = windowResize.getWidth() - 1; | |
2177 | } | |
2178 | if (y >= windowResize.getHeight()) { | |
2179 | y = windowResize.getHeight() - 1; | |
2180 | } | |
2181 | ||
2182 | TMouseEvent.Type eventType = TMouseEvent.Type.MOUSE_DOWN; | |
2183 | boolean eventMouse1 = false; | |
2184 | boolean eventMouse2 = false; | |
2185 | boolean eventMouse3 = false; | |
2186 | boolean eventMouseWheelUp = false; | |
2187 | boolean eventMouseWheelDown = false; | |
2188 | ||
2189 | if (release) { | |
2190 | eventType = TMouseEvent.Type.MOUSE_UP; | |
2191 | } | |
2192 | ||
2193 | switch (buttons) { | |
2194 | case 0: | |
2195 | eventMouse1 = true; | |
2196 | break; | |
2197 | case 1: | |
2198 | eventMouse2 = true; | |
2199 | break; | |
2200 | case 2: | |
2201 | eventMouse3 = true; | |
2202 | break; | |
2203 | case 35: | |
2204 | // Motion only, no buttons down | |
2205 | eventType = TMouseEvent.Type.MOUSE_MOTION; | |
2206 | break; | |
2207 | ||
2208 | case 32: | |
2209 | // Dragging with mouse1 down | |
2210 | eventMouse1 = true; | |
2211 | eventType = TMouseEvent.Type.MOUSE_MOTION; | |
2212 | break; | |
2213 | ||
2214 | case 33: | |
2215 | // Dragging with mouse2 down | |
2216 | eventMouse2 = true; | |
2217 | eventType = TMouseEvent.Type.MOUSE_MOTION; | |
2218 | break; | |
2219 | ||
2220 | case 34: | |
2221 | // Dragging with mouse3 down | |
2222 | eventMouse3 = true; | |
2223 | eventType = TMouseEvent.Type.MOUSE_MOTION; | |
2224 | break; | |
2225 | ||
2226 | case 96: | |
2227 | // Dragging with mouse2 down after wheelUp | |
2228 | eventMouse2 = true; | |
2229 | eventType = TMouseEvent.Type.MOUSE_MOTION; | |
2230 | break; | |
2231 | ||
2232 | case 97: | |
2233 | // Dragging with mouse2 down after wheelDown | |
2234 | eventMouse2 = true; | |
2235 | eventType = TMouseEvent.Type.MOUSE_MOTION; | |
2236 | break; | |
2237 | ||
2238 | case 64: | |
2239 | eventMouseWheelUp = true; | |
2240 | break; | |
2241 | ||
2242 | case 65: | |
2243 | eventMouseWheelDown = true; | |
2244 | break; | |
2245 | ||
2246 | default: | |
2247 | // Unknown, bail out | |
2248 | return null; | |
2249 | } | |
2250 | return new TMouseEvent(eventType, x, y, x, y, | |
2251 | eventMouse1, eventMouse2, eventMouse3, | |
2252 | eventMouseWheelUp, eventMouseWheelDown); | |
2253 | } | |
2254 | ||
05dbb28d | 2255 | /** |
623a1bd1 | 2256 | * Return any events in the IO queue due to timeout. |
b1589621 | 2257 | * |
623a1bd1 | 2258 | * @param queue list to append new events to |
b1589621 | 2259 | */ |
a83fea2b | 2260 | private void getIdleEvents(final List<TInputEvent> queue) { |
be72cb5c | 2261 | long nowTime = System.currentTimeMillis(); |
7b5261bc KL |
2262 | |
2263 | // Check for new window size | |
be72cb5c | 2264 | long windowSizeDelay = nowTime - windowSizeTime; |
a83fea2b | 2265 | if (windowSizeDelay > 1000) { |
9696a8f6 KL |
2266 | int oldTextWidth = getTextWidth(); |
2267 | int oldTextHeight = getTextHeight(); | |
2268 | ||
a83fea2b KL |
2269 | sessionInfo.queryWindowSize(); |
2270 | int newWidth = sessionInfo.getWindowWidth(); | |
2271 | int newHeight = sessionInfo.getWindowHeight(); | |
85c07c5e | 2272 | |
a83fea2b KL |
2273 | if ((newWidth != windowResize.getWidth()) |
2274 | || (newHeight != windowResize.getHeight()) | |
2275 | ) { | |
85c07c5e | 2276 | |
9696a8f6 KL |
2277 | // Request xterm report window dimensions in pixels again. |
2278 | // Between now and then, ensure that the reported text cell | |
2279 | // size is the same by setting widthPixels and heightPixels | |
2280 | // to match the new dimensions. | |
2281 | widthPixels = oldTextWidth * newWidth; | |
2282 | heightPixels = oldTextHeight * newHeight; | |
2283 | ||
85c07c5e KL |
2284 | if (debugToStderr) { |
2285 | System.err.println("Screen size changed, old size " + | |
2286 | windowResize); | |
2287 | System.err.println(" new size " + | |
2288 | newWidth + " x " + newHeight); | |
9696a8f6 KL |
2289 | System.err.println(" old pixels " + |
2290 | oldTextWidth + " x " + oldTextHeight); | |
2291 | System.err.println(" new pixels " + | |
2292 | getTextWidth() + " x " + getTextHeight()); | |
85c07c5e KL |
2293 | } |
2294 | ||
a69ed767 KL |
2295 | this.output.printf("%s", xtermReportWindowPixelDimensions()); |
2296 | this.output.flush(); | |
2297 | ||
a83fea2b KL |
2298 | TResizeEvent event = new TResizeEvent(TResizeEvent.Type.SCREEN, |
2299 | newWidth, newHeight); | |
2300 | windowResize = new TResizeEvent(TResizeEvent.Type.SCREEN, | |
2301 | newWidth, newHeight); | |
2302 | queue.add(event); | |
7b5261bc | 2303 | } |
be72cb5c | 2304 | windowSizeTime = nowTime; |
7b5261bc KL |
2305 | } |
2306 | ||
a83fea2b KL |
2307 | // ESCDELAY type timeout |
2308 | if (state == ParseState.ESCAPE) { | |
be72cb5c | 2309 | long escDelay = nowTime - escapeTime; |
a83fea2b KL |
2310 | if (escDelay > 100) { |
2311 | // After 0.1 seconds, assume a true escape character | |
2312 | queue.add(controlChar((char)0x1B, false)); | |
42873e30 | 2313 | resetParser(); |
7b5261bc KL |
2314 | } |
2315 | } | |
b1589621 KL |
2316 | } |
2317 | ||
32437017 KL |
2318 | /** |
2319 | * Returns true if the CSI parameter for a keyboard command means that | |
2320 | * shift was down. | |
2321 | */ | |
2322 | private boolean csiIsShift(final String x) { | |
2323 | if ((x.equals("2")) | |
2324 | || (x.equals("4")) | |
2325 | || (x.equals("6")) | |
2326 | || (x.equals("8")) | |
2327 | ) { | |
2328 | return true; | |
2329 | } | |
2330 | return false; | |
2331 | } | |
2332 | ||
2333 | /** | |
2334 | * Returns true if the CSI parameter for a keyboard command means that | |
2335 | * alt was down. | |
2336 | */ | |
2337 | private boolean csiIsAlt(final String x) { | |
2338 | if ((x.equals("3")) | |
2339 | || (x.equals("4")) | |
2340 | || (x.equals("7")) | |
2341 | || (x.equals("8")) | |
2342 | ) { | |
2343 | return true; | |
2344 | } | |
2345 | return false; | |
2346 | } | |
2347 | ||
2348 | /** | |
2349 | * Returns true if the CSI parameter for a keyboard command means that | |
2350 | * ctrl was down. | |
2351 | */ | |
2352 | private boolean csiIsCtrl(final String x) { | |
2353 | if ((x.equals("5")) | |
2354 | || (x.equals("6")) | |
2355 | || (x.equals("7")) | |
2356 | || (x.equals("8")) | |
2357 | ) { | |
2358 | return true; | |
2359 | } | |
2360 | return false; | |
2361 | } | |
2362 | ||
b1589621 KL |
2363 | /** |
2364 | * Parses the next character of input to see if an InputEvent is | |
2365 | * fully here. | |
2366 | * | |
623a1bd1 | 2367 | * @param events list to append new events to |
05dbb28d | 2368 | * @param ch Unicode code point |
b1589621 | 2369 | */ |
7b5261bc KL |
2370 | private void processChar(final List<TInputEvent> events, final char ch) { |
2371 | ||
7b5261bc | 2372 | // ESCDELAY type timeout |
be72cb5c | 2373 | long nowTime = System.currentTimeMillis(); |
7b5261bc | 2374 | if (state == ParseState.ESCAPE) { |
be72cb5c | 2375 | long escDelay = nowTime - escapeTime; |
7b5261bc KL |
2376 | if (escDelay > 250) { |
2377 | // After 0.25 seconds, assume a true escape character | |
b299e69c | 2378 | events.add(controlChar((char)0x1B, false)); |
42873e30 | 2379 | resetParser(); |
7b5261bc KL |
2380 | } |
2381 | } | |
2382 | ||
b299e69c KL |
2383 | // TKeypress fields |
2384 | boolean ctrl = false; | |
2385 | boolean alt = false; | |
2386 | boolean shift = false; | |
b299e69c | 2387 | |
7b5261bc KL |
2388 | // System.err.printf("state: %s ch %c\r\n", state, ch); |
2389 | ||
2390 | switch (state) { | |
2391 | case GROUND: | |
2392 | ||
2393 | if (ch == 0x1B) { | |
2394 | state = ParseState.ESCAPE; | |
be72cb5c | 2395 | escapeTime = nowTime; |
7b5261bc KL |
2396 | return; |
2397 | } | |
2398 | ||
2399 | if (ch <= 0x1F) { | |
2400 | // Control character | |
b299e69c | 2401 | events.add(controlChar(ch, false)); |
42873e30 | 2402 | resetParser(); |
7b5261bc KL |
2403 | return; |
2404 | } | |
2405 | ||
2406 | if (ch >= 0x20) { | |
2407 | // Normal character | |
b299e69c KL |
2408 | events.add(new TKeypressEvent(false, 0, ch, |
2409 | false, false, false)); | |
42873e30 | 2410 | resetParser(); |
7b5261bc KL |
2411 | return; |
2412 | } | |
2413 | ||
2414 | break; | |
2415 | ||
2416 | case ESCAPE: | |
2417 | if (ch <= 0x1F) { | |
2418 | // ALT-Control character | |
b299e69c | 2419 | events.add(controlChar(ch, true)); |
42873e30 | 2420 | resetParser(); |
7b5261bc KL |
2421 | return; |
2422 | } | |
2423 | ||
2424 | if (ch == 'O') { | |
2425 | // This will be one of the function keys | |
2426 | state = ParseState.ESCAPE_INTERMEDIATE; | |
2427 | return; | |
2428 | } | |
2429 | ||
2430 | // '[' goes to CSI_ENTRY | |
2431 | if (ch == '[') { | |
2432 | state = ParseState.CSI_ENTRY; | |
2433 | return; | |
2434 | } | |
2435 | ||
2436 | // Everything else is assumed to be Alt-keystroke | |
7b5261bc | 2437 | if ((ch >= 'A') && (ch <= 'Z')) { |
b299e69c | 2438 | shift = true; |
7b5261bc | 2439 | } |
b299e69c KL |
2440 | alt = true; |
2441 | events.add(new TKeypressEvent(false, 0, ch, alt, ctrl, shift)); | |
42873e30 | 2442 | resetParser(); |
7b5261bc KL |
2443 | return; |
2444 | ||
2445 | case ESCAPE_INTERMEDIATE: | |
2446 | if ((ch >= 'P') && (ch <= 'S')) { | |
2447 | // Function key | |
7b5261bc KL |
2448 | switch (ch) { |
2449 | case 'P': | |
b299e69c | 2450 | events.add(new TKeypressEvent(kbF1)); |
7b5261bc KL |
2451 | break; |
2452 | case 'Q': | |
b299e69c | 2453 | events.add(new TKeypressEvent(kbF2)); |
7b5261bc KL |
2454 | break; |
2455 | case 'R': | |
b299e69c | 2456 | events.add(new TKeypressEvent(kbF3)); |
7b5261bc KL |
2457 | break; |
2458 | case 'S': | |
b299e69c | 2459 | events.add(new TKeypressEvent(kbF4)); |
7b5261bc KL |
2460 | break; |
2461 | default: | |
2462 | break; | |
2463 | } | |
42873e30 | 2464 | resetParser(); |
7b5261bc KL |
2465 | return; |
2466 | } | |
2467 | ||
2468 | // Unknown keystroke, ignore | |
42873e30 | 2469 | resetParser(); |
7b5261bc KL |
2470 | return; |
2471 | ||
2472 | case CSI_ENTRY: | |
2473 | // Numbers - parameter values | |
2474 | if ((ch >= '0') && (ch <= '9')) { | |
92554d64 KL |
2475 | params.set(params.size() - 1, |
2476 | params.get(params.size() - 1) + ch); | |
7b5261bc KL |
2477 | state = ParseState.CSI_PARAM; |
2478 | return; | |
2479 | } | |
2480 | // Parameter separator | |
2481 | if (ch == ';') { | |
a83fea2b | 2482 | params.add(""); |
7b5261bc KL |
2483 | return; |
2484 | } | |
2485 | ||
2486 | if ((ch >= 0x30) && (ch <= 0x7E)) { | |
2487 | switch (ch) { | |
2488 | case 'A': | |
2489 | // Up | |
b299e69c | 2490 | events.add(new TKeypressEvent(kbUp, alt, ctrl, shift)); |
42873e30 | 2491 | resetParser(); |
7b5261bc KL |
2492 | return; |
2493 | case 'B': | |
2494 | // Down | |
b299e69c | 2495 | events.add(new TKeypressEvent(kbDown, alt, ctrl, shift)); |
42873e30 | 2496 | resetParser(); |
7b5261bc KL |
2497 | return; |
2498 | case 'C': | |
2499 | // Right | |
b299e69c | 2500 | events.add(new TKeypressEvent(kbRight, alt, ctrl, shift)); |
42873e30 | 2501 | resetParser(); |
7b5261bc KL |
2502 | return; |
2503 | case 'D': | |
2504 | // Left | |
b299e69c | 2505 | events.add(new TKeypressEvent(kbLeft, alt, ctrl, shift)); |
42873e30 | 2506 | resetParser(); |
7b5261bc KL |
2507 | return; |
2508 | case 'H': | |
2509 | // Home | |
b299e69c | 2510 | events.add(new TKeypressEvent(kbHome)); |
42873e30 | 2511 | resetParser(); |
7b5261bc KL |
2512 | return; |
2513 | case 'F': | |
2514 | // End | |
b299e69c | 2515 | events.add(new TKeypressEvent(kbEnd)); |
42873e30 | 2516 | resetParser(); |
7b5261bc KL |
2517 | return; |
2518 | case 'Z': | |
2519 | // CBT - Cursor backward X tab stops (default 1) | |
b299e69c | 2520 | events.add(new TKeypressEvent(kbBackTab)); |
42873e30 | 2521 | resetParser(); |
7b5261bc KL |
2522 | return; |
2523 | case 'M': | |
2524 | // Mouse position | |
2525 | state = ParseState.MOUSE; | |
2526 | return; | |
b5f2a6db KL |
2527 | case '<': |
2528 | // Mouse position, SGR (1006) coordinates | |
2529 | state = ParseState.MOUSE_SGR; | |
2530 | return; | |
7b5261bc KL |
2531 | default: |
2532 | break; | |
2533 | } | |
2534 | } | |
2535 | ||
2536 | // Unknown keystroke, ignore | |
42873e30 | 2537 | resetParser(); |
7b5261bc KL |
2538 | return; |
2539 | ||
b5f2a6db KL |
2540 | case MOUSE_SGR: |
2541 | // Numbers - parameter values | |
2542 | if ((ch >= '0') && (ch <= '9')) { | |
2543 | params.set(params.size() - 1, | |
2544 | params.get(params.size() - 1) + ch); | |
2545 | return; | |
2546 | } | |
2547 | // Parameter separator | |
2548 | if (ch == ';') { | |
2549 | params.add(""); | |
2550 | return; | |
2551 | } | |
2552 | ||
2553 | switch (ch) { | |
2554 | case 'M': | |
2555 | // Generate a mouse press event | |
2556 | TInputEvent event = parseMouseSGR(false); | |
2557 | if (event != null) { | |
2558 | events.add(event); | |
2559 | } | |
42873e30 | 2560 | resetParser(); |
b5f2a6db KL |
2561 | return; |
2562 | case 'm': | |
2563 | // Generate a mouse release event | |
2564 | event = parseMouseSGR(true); | |
2565 | if (event != null) { | |
2566 | events.add(event); | |
2567 | } | |
42873e30 | 2568 | resetParser(); |
b5f2a6db KL |
2569 | return; |
2570 | default: | |
2571 | break; | |
2572 | } | |
2573 | ||
2574 | // Unknown keystroke, ignore | |
42873e30 | 2575 | resetParser(); |
b5f2a6db KL |
2576 | return; |
2577 | ||
7b5261bc KL |
2578 | case CSI_PARAM: |
2579 | // Numbers - parameter values | |
2580 | if ((ch >= '0') && (ch <= '9')) { | |
92554d64 KL |
2581 | params.set(params.size() - 1, |
2582 | params.get(params.size() - 1) + ch); | |
7b5261bc KL |
2583 | state = ParseState.CSI_PARAM; |
2584 | return; | |
2585 | } | |
2586 | // Parameter separator | |
2587 | if (ch == ';') { | |
92554d64 | 2588 | params.add(""); |
7b5261bc KL |
2589 | return; |
2590 | } | |
2591 | ||
2592 | if (ch == '~') { | |
2593 | events.add(csiFnKey()); | |
42873e30 | 2594 | resetParser(); |
7b5261bc KL |
2595 | return; |
2596 | } | |
2597 | ||
2598 | if ((ch >= 0x30) && (ch <= 0x7E)) { | |
2599 | switch (ch) { | |
2600 | case 'A': | |
2601 | // Up | |
7b5261bc | 2602 | if (params.size() > 1) { |
32437017 KL |
2603 | shift = csiIsShift(params.get(1)); |
2604 | alt = csiIsAlt(params.get(1)); | |
2605 | ctrl = csiIsCtrl(params.get(1)); | |
7b5261bc | 2606 | } |
b299e69c | 2607 | events.add(new TKeypressEvent(kbUp, alt, ctrl, shift)); |
42873e30 | 2608 | resetParser(); |
7b5261bc KL |
2609 | return; |
2610 | case 'B': | |
2611 | // Down | |
7b5261bc | 2612 | if (params.size() > 1) { |
32437017 KL |
2613 | shift = csiIsShift(params.get(1)); |
2614 | alt = csiIsAlt(params.get(1)); | |
2615 | ctrl = csiIsCtrl(params.get(1)); | |
7b5261bc | 2616 | } |
b299e69c | 2617 | events.add(new TKeypressEvent(kbDown, alt, ctrl, shift)); |
42873e30 | 2618 | resetParser(); |
7b5261bc KL |
2619 | return; |
2620 | case 'C': | |
2621 | // Right | |
7b5261bc | 2622 | if (params.size() > 1) { |
32437017 KL |
2623 | shift = csiIsShift(params.get(1)); |
2624 | alt = csiIsAlt(params.get(1)); | |
2625 | ctrl = csiIsCtrl(params.get(1)); | |
7b5261bc | 2626 | } |
b299e69c | 2627 | events.add(new TKeypressEvent(kbRight, alt, ctrl, shift)); |
42873e30 | 2628 | resetParser(); |
7b5261bc KL |
2629 | return; |
2630 | case 'D': | |
2631 | // Left | |
7b5261bc | 2632 | if (params.size() > 1) { |
32437017 KL |
2633 | shift = csiIsShift(params.get(1)); |
2634 | alt = csiIsAlt(params.get(1)); | |
2635 | ctrl = csiIsCtrl(params.get(1)); | |
7b5261bc | 2636 | } |
b299e69c | 2637 | events.add(new TKeypressEvent(kbLeft, alt, ctrl, shift)); |
42873e30 | 2638 | resetParser(); |
7b5261bc | 2639 | return; |
32437017 KL |
2640 | case 'H': |
2641 | // Home | |
2642 | if (params.size() > 1) { | |
2643 | shift = csiIsShift(params.get(1)); | |
2644 | alt = csiIsAlt(params.get(1)); | |
2645 | ctrl = csiIsCtrl(params.get(1)); | |
2646 | } | |
2647 | events.add(new TKeypressEvent(kbHome, alt, ctrl, shift)); | |
42873e30 | 2648 | resetParser(); |
32437017 KL |
2649 | return; |
2650 | case 'F': | |
2651 | // End | |
2652 | if (params.size() > 1) { | |
2653 | shift = csiIsShift(params.get(1)); | |
2654 | alt = csiIsAlt(params.get(1)); | |
2655 | ctrl = csiIsCtrl(params.get(1)); | |
2656 | } | |
2657 | events.add(new TKeypressEvent(kbEnd, alt, ctrl, shift)); | |
42873e30 | 2658 | resetParser(); |
32437017 | 2659 | return; |
a69ed767 KL |
2660 | case 't': |
2661 | // windowOps | |
2662 | if ((params.size() > 2) && (params.get(0).equals("4"))) { | |
2663 | if (debugToStderr) { | |
2664 | System.err.printf("windowOp pixels: " + | |
2665 | "height %s width %s\n", | |
2666 | params.get(1), params.get(2)); | |
2667 | } | |
2668 | try { | |
2669 | widthPixels = Integer.parseInt(params.get(2)); | |
2670 | heightPixels = Integer.parseInt(params.get(1)); | |
2671 | } catch (NumberFormatException e) { | |
2672 | if (debugToStderr) { | |
2673 | e.printStackTrace(); | |
2674 | } | |
2675 | } | |
2676 | if (widthPixels <= 0) { | |
2677 | widthPixels = 640; | |
2678 | } | |
2679 | if (heightPixels <= 0) { | |
2680 | heightPixels = 400; | |
2681 | } | |
2682 | } | |
2683 | resetParser(); | |
2684 | return; | |
7b5261bc KL |
2685 | default: |
2686 | break; | |
2687 | } | |
2688 | } | |
2689 | ||
2690 | // Unknown keystroke, ignore | |
42873e30 | 2691 | resetParser(); |
7b5261bc KL |
2692 | return; |
2693 | ||
2694 | case MOUSE: | |
92554d64 | 2695 | params.set(0, params.get(params.size() - 1) + ch); |
7b5261bc KL |
2696 | if (params.get(0).length() == 3) { |
2697 | // We have enough to generate a mouse event | |
2698 | events.add(parseMouse()); | |
42873e30 | 2699 | resetParser(); |
7b5261bc KL |
2700 | } |
2701 | return; | |
2702 | ||
2703 | default: | |
2704 | break; | |
2705 | } | |
2706 | ||
2707 | // This "should" be impossible to reach | |
2708 | return; | |
b1589621 KL |
2709 | } |
2710 | ||
a69ed767 KL |
2711 | /** |
2712 | * Request (u)xterm to report the current window size dimensions. | |
2713 | * | |
2714 | * @return the string to emit to xterm | |
2715 | */ | |
2716 | private String xtermReportWindowPixelDimensions() { | |
2717 | return "\033[14t"; | |
2718 | } | |
2719 | ||
b1589621 | 2720 | /** |
05dbb28d KL |
2721 | * Tell (u)xterm that we want alt- keystrokes to send escape + character |
2722 | * rather than set the 8th bit. Anyone who wants UTF8 should want this | |
2723 | * enabled. | |
b1589621 | 2724 | * |
05dbb28d KL |
2725 | * @param on if true, enable metaSendsEscape |
2726 | * @return the string to emit to xterm | |
b1589621 | 2727 | */ |
b5f2a6db | 2728 | private String xtermMetaSendsEscape(final boolean on) { |
7b5261bc KL |
2729 | if (on) { |
2730 | return "\033[?1036h\033[?1034l"; | |
2731 | } | |
2732 | return "\033[?1036l"; | |
b1589621 KL |
2733 | } |
2734 | ||
55d2b2c2 | 2735 | /** |
42873e30 | 2736 | * Create an xterm OSC sequence to change the window title. |
55d2b2c2 KL |
2737 | * |
2738 | * @param title the new title | |
2739 | * @return the string to emit to xterm | |
2740 | */ | |
42873e30 | 2741 | private String getSetTitleString(final String title) { |
55d2b2c2 KL |
2742 | return "\033]2;" + title + "\007"; |
2743 | } | |
2744 | ||
a69ed767 KL |
2745 | // ------------------------------------------------------------------------ |
2746 | // Sixel output support --------------------------------------------------- | |
2747 | // ------------------------------------------------------------------------ | |
2748 | ||
2749 | /** | |
2750 | * Start a sixel string for display one row's worth of bitmap data. | |
2751 | * | |
2752 | * @param x column coordinate. 0 is the left-most column. | |
2753 | * @param y row coordinate. 0 is the top-most row. | |
2754 | * @return the string to emit to an ANSI / ECMA-style terminal | |
2755 | */ | |
2756 | private String startSixel(final int x, final int y) { | |
2757 | StringBuilder sb = new StringBuilder(); | |
2758 | ||
2759 | assert (sixel == true); | |
2760 | ||
2761 | // Place the cursor | |
2762 | sb.append(gotoXY(x, y)); | |
2763 | ||
2764 | // DCS | |
2765 | sb.append("\033Pq"); | |
2766 | ||
2767 | if (palette == null) { | |
2768 | palette = new SixelPalette(); | |
2769 | } | |
2770 | ||
2771 | return sb.toString(); | |
2772 | } | |
2773 | ||
2774 | /** | |
2775 | * End a sixel string for display one row's worth of bitmap data. | |
2776 | * | |
2777 | * @return the string to emit to an ANSI / ECMA-style terminal | |
2778 | */ | |
2779 | private String endSixel() { | |
2780 | assert (sixel == true); | |
2781 | ||
2782 | // ST | |
2783 | return ("\033\\"); | |
2784 | } | |
2785 | ||
2786 | /** | |
2787 | * Create a sixel string representing a row of several cells containing | |
2788 | * bitmap data. | |
2789 | * | |
2790 | * @param x column coordinate. 0 is the left-most column. | |
2791 | * @param y row coordinate. 0 is the top-most row. | |
2792 | * @param cells the cells containing the bitmap data | |
2793 | * @return the string to emit to an ANSI / ECMA-style terminal | |
2794 | */ | |
2795 | private String toSixel(final int x, final int y, | |
2796 | final ArrayList<Cell> cells) { | |
2797 | ||
2798 | StringBuilder sb = new StringBuilder(); | |
2799 | ||
a69ed767 KL |
2800 | assert (cells != null); |
2801 | assert (cells.size() > 0); | |
2802 | assert (cells.get(0).getImage() != null); | |
2803 | ||
e23ea538 KL |
2804 | if (sixel == false) { |
2805 | sb.append(normal()); | |
2806 | sb.append(gotoXY(x, y)); | |
2807 | for (int i = 0; i < cells.size(); i++) { | |
2808 | sb.append(' '); | |
2809 | } | |
2810 | return sb.toString(); | |
2811 | } | |
2812 | ||
a69ed767 KL |
2813 | if (sixelCache == null) { |
2814 | sixelCache = new SixelCache(height * 10); | |
2815 | } | |
2816 | ||
2817 | // Save and get rows to/from the cache that do NOT have inverted | |
2818 | // cells. | |
2819 | boolean saveInCache = true; | |
2820 | for (Cell cell: cells) { | |
2821 | if (cell.isInvertedImage()) { | |
2822 | saveInCache = false; | |
2823 | } | |
2824 | } | |
2825 | if (saveInCache) { | |
2826 | String cachedResult = sixelCache.get(cells); | |
2827 | if (cachedResult != null) { | |
2828 | // System.err.println("CACHE HIT"); | |
2829 | sb.append(startSixel(x, y)); | |
2830 | sb.append(cachedResult); | |
2831 | sb.append(endSixel()); | |
2832 | return sb.toString(); | |
2833 | } | |
2834 | // System.err.println("CACHE MISS"); | |
2835 | } | |
2836 | ||
2837 | int imageWidth = cells.get(0).getImage().getWidth(); | |
2838 | int imageHeight = cells.get(0).getImage().getHeight(); | |
2839 | ||
2840 | // cells.get(x).getImage() has a dithered bitmap containing indexes | |
2841 | // into the color palette. Piece these together into one larger | |
2842 | // image for final rendering. | |
2843 | int totalWidth = 0; | |
2844 | int fullWidth = cells.size() * getTextWidth(); | |
2845 | int fullHeight = getTextHeight(); | |
2846 | for (int i = 0; i < cells.size(); i++) { | |
2847 | totalWidth += cells.get(i).getImage().getWidth(); | |
2848 | } | |
2849 | ||
2850 | BufferedImage image = new BufferedImage(fullWidth, | |
2851 | fullHeight, BufferedImage.TYPE_INT_ARGB); | |
2852 | ||
2853 | int [] rgbArray; | |
2854 | for (int i = 0; i < cells.size() - 1; i++) { | |
2855 | if (cells.get(i).isInvertedImage()) { | |
2856 | rgbArray = new int[imageWidth * imageHeight]; | |
2857 | for (int j = 0; j < rgbArray.length; j++) { | |
2858 | rgbArray[j] = 0xFFFFFF; | |
2859 | } | |
2860 | } else { | |
2861 | rgbArray = cells.get(i).getImage().getRGB(0, 0, | |
2862 | imageWidth, imageHeight, null, 0, imageWidth); | |
2863 | } | |
9696a8f6 KL |
2864 | |
2865 | /* | |
2866 | System.err.printf("calling image.setRGB(): %d %d %d %d %d\n", | |
2867 | i * imageWidth, 0, imageWidth, imageHeight, | |
2868 | 0, imageWidth); | |
2869 | System.err.printf(" fullWidth %d fullHeight %d cells.size() %d textWidth %d\n", | |
2870 | fullWidth, fullHeight, cells.size(), getTextWidth()); | |
2871 | */ | |
2872 | ||
a69ed767 KL |
2873 | image.setRGB(i * imageWidth, 0, imageWidth, imageHeight, |
2874 | rgbArray, 0, imageWidth); | |
2875 | if (imageHeight < fullHeight) { | |
2876 | int backgroundColor = cells.get(i).getBackground().getRGB(); | |
2877 | for (int imageX = 0; imageX < image.getWidth(); imageX++) { | |
2878 | for (int imageY = imageHeight; imageY < fullHeight; | |
2879 | imageY++) { | |
2880 | ||
2881 | image.setRGB(imageX, imageY, backgroundColor); | |
2882 | } | |
2883 | } | |
2884 | } | |
2885 | } | |
2886 | totalWidth -= ((cells.size() - 1) * imageWidth); | |
2887 | if (cells.get(cells.size() - 1).isInvertedImage()) { | |
2888 | rgbArray = new int[totalWidth * imageHeight]; | |
2889 | for (int j = 0; j < rgbArray.length; j++) { | |
2890 | rgbArray[j] = 0xFFFFFF; | |
2891 | } | |
2892 | } else { | |
2893 | rgbArray = cells.get(cells.size() - 1).getImage().getRGB(0, 0, | |
2894 | totalWidth, imageHeight, null, 0, totalWidth); | |
2895 | } | |
2896 | image.setRGB((cells.size() - 1) * imageWidth, 0, totalWidth, | |
2897 | imageHeight, rgbArray, 0, totalWidth); | |
2898 | ||
2899 | if (totalWidth < getTextWidth()) { | |
2900 | int backgroundColor = cells.get(cells.size() - 1).getBackground().getRGB(); | |
2901 | ||
2902 | for (int imageX = image.getWidth() - totalWidth; | |
2903 | imageX < image.getWidth(); imageX++) { | |
2904 | ||
2905 | for (int imageY = 0; imageY < fullHeight; imageY++) { | |
2906 | image.setRGB(imageX, imageY, backgroundColor); | |
2907 | } | |
2908 | } | |
2909 | } | |
2910 | ||
2911 | // Dither the image. It is ok to lose the original here. | |
2912 | if (palette == null) { | |
2913 | palette = new SixelPalette(); | |
2914 | } | |
2915 | image = palette.ditherImage(image); | |
2916 | ||
2917 | // Emit the palette, but only for the colors actually used by these | |
2918 | // cells. | |
2919 | boolean [] usedColors = new boolean[MAX_COLOR_REGISTERS]; | |
2920 | for (int imageX = 0; imageX < image.getWidth(); imageX++) { | |
2921 | for (int imageY = 0; imageY < image.getHeight(); imageY++) { | |
2922 | usedColors[image.getRGB(imageX, imageY)] = true; | |
2923 | } | |
2924 | } | |
2925 | palette.emitPalette(sb, usedColors); | |
2926 | ||
2927 | // Render the entire row of cells. | |
2928 | for (int currentRow = 0; currentRow < fullHeight; currentRow += 6) { | |
2929 | int [][] sixels = new int[image.getWidth()][6]; | |
2930 | ||
2931 | // See which colors are actually used in this band of sixels. | |
2932 | for (int imageX = 0; imageX < image.getWidth(); imageX++) { | |
2933 | for (int imageY = 0; | |
2934 | (imageY < 6) && (imageY + currentRow < fullHeight); | |
2935 | imageY++) { | |
2936 | ||
2937 | int colorIdx = image.getRGB(imageX, imageY + currentRow); | |
2938 | assert (colorIdx >= 0); | |
2939 | assert (colorIdx < MAX_COLOR_REGISTERS); | |
2940 | ||
2941 | sixels[imageX][imageY] = colorIdx; | |
2942 | } | |
2943 | } | |
2944 | ||
2945 | for (int i = 0; i < MAX_COLOR_REGISTERS; i++) { | |
2946 | boolean isUsed = false; | |
2947 | for (int imageX = 0; imageX < image.getWidth(); imageX++) { | |
2948 | for (int j = 0; j < 6; j++) { | |
2949 | if (sixels[imageX][j] == i) { | |
2950 | isUsed = true; | |
2951 | } | |
2952 | } | |
2953 | } | |
2954 | if (isUsed == false) { | |
2955 | continue; | |
2956 | } | |
2957 | ||
2958 | // Set to the beginning of scan line for the next set of | |
2959 | // colored pixels, and select the color. | |
2960 | sb.append(String.format("$#%d", i)); | |
2961 | ||
2962 | for (int imageX = 0; imageX < image.getWidth(); imageX++) { | |
2963 | ||
2964 | // Add up all the pixels that match this color. | |
2965 | int data = 0; | |
2966 | for (int j = 0; | |
2967 | (j < 6) && (currentRow + j < fullHeight); | |
2968 | j++) { | |
2969 | ||
2970 | if (sixels[imageX][j] == i) { | |
2971 | switch (j) { | |
2972 | case 0: | |
2973 | data += 1; | |
2974 | break; | |
2975 | case 1: | |
2976 | data += 2; | |
2977 | break; | |
2978 | case 2: | |
2979 | data += 4; | |
2980 | break; | |
2981 | case 3: | |
2982 | data += 8; | |
2983 | break; | |
2984 | case 4: | |
2985 | data += 16; | |
2986 | break; | |
2987 | case 5: | |
2988 | data += 32; | |
2989 | break; | |
2990 | } | |
2991 | } | |
2992 | } | |
2993 | assert (data >= 0); | |
2994 | assert (data < 127); | |
2995 | data += 63; | |
2996 | sb.append((char) data); | |
2997 | } // for (int imageX = 0; imageX < image.getWidth(); imageX++) | |
2998 | } // for (int i = 0; i < MAX_COLOR_REGISTERS; i++) | |
2999 | ||
3000 | // Advance to the next scan line. | |
3001 | sb.append("-"); | |
3002 | ||
3003 | } // for (int currentRow = 0; currentRow < imageHeight; currentRow += 6) | |
3004 | ||
3005 | // Kill the very last "-", because it is unnecessary. | |
3006 | sb.deleteCharAt(sb.length() - 1); | |
3007 | ||
3008 | if (saveInCache) { | |
3009 | // This row is OK to save into the cache. | |
3010 | sixelCache.put(cells, sb.toString()); | |
3011 | } | |
3012 | ||
3013 | return (startSixel(x, y) + sb.toString() + endSixel()); | |
3014 | } | |
3015 | ||
3016 | // ------------------------------------------------------------------------ | |
3017 | // End sixel output support ----------------------------------------------- | |
3018 | // ------------------------------------------------------------------------ | |
3019 | ||
b1589621 | 3020 | /** |
42873e30 | 3021 | * Create a SGR parameter sequence for a single color change. |
b1589621 | 3022 | * |
15ea4d73 | 3023 | * @param bold if true, set bold |
05dbb28d KL |
3024 | * @param color one of the Color.WHITE, Color.BLUE, etc. constants |
3025 | * @param foreground if true, this is a foreground color | |
3026 | * @return the string to emit to an ANSI / ECMA-style terminal, | |
3027 | * e.g. "\033[42m" | |
b1589621 | 3028 | */ |
42873e30 | 3029 | private String color(final boolean bold, final Color color, |
15ea4d73 KL |
3030 | final boolean foreground) { |
3031 | return color(color, foreground, true) + | |
3032 | rgbColor(bold, color, foreground); | |
3033 | } | |
3034 | ||
051e2913 KL |
3035 | /** |
3036 | * Create a T.416 RGB parameter sequence for a single color change. | |
3037 | * | |
3038 | * @param colorRGB a 24-bit RGB value for foreground color | |
3039 | * @param foreground if true, this is a foreground color | |
3040 | * @return the string to emit to an ANSI / ECMA-style terminal, | |
3041 | * e.g. "\033[42m" | |
3042 | */ | |
3043 | private String colorRGB(final int colorRGB, final boolean foreground) { | |
3044 | ||
a69ed767 KL |
3045 | int colorRed = (colorRGB >>> 16) & 0xFF; |
3046 | int colorGreen = (colorRGB >>> 8) & 0xFF; | |
3047 | int colorBlue = colorRGB & 0xFF; | |
051e2913 KL |
3048 | |
3049 | StringBuilder sb = new StringBuilder(); | |
3050 | if (foreground) { | |
3051 | sb.append("\033[38;2;"); | |
3052 | } else { | |
3053 | sb.append("\033[48;2;"); | |
3054 | } | |
3055 | sb.append(String.format("%d;%d;%dm", colorRed, colorGreen, colorBlue)); | |
3056 | return sb.toString(); | |
3057 | } | |
3058 | ||
3059 | /** | |
3060 | * Create a T.416 RGB parameter sequence for both foreground and | |
3061 | * background color change. | |
3062 | * | |
3063 | * @param foreColorRGB a 24-bit RGB value for foreground color | |
3064 | * @param backColorRGB a 24-bit RGB value for foreground color | |
3065 | * @return the string to emit to an ANSI / ECMA-style terminal, | |
3066 | * e.g. "\033[42m" | |
3067 | */ | |
3068 | private String colorRGB(final int foreColorRGB, final int backColorRGB) { | |
a69ed767 KL |
3069 | int foreColorRed = (foreColorRGB >>> 16) & 0xFF; |
3070 | int foreColorGreen = (foreColorRGB >>> 8) & 0xFF; | |
3071 | int foreColorBlue = foreColorRGB & 0xFF; | |
3072 | int backColorRed = (backColorRGB >>> 16) & 0xFF; | |
3073 | int backColorGreen = (backColorRGB >>> 8) & 0xFF; | |
3074 | int backColorBlue = backColorRGB & 0xFF; | |
051e2913 KL |
3075 | |
3076 | StringBuilder sb = new StringBuilder(); | |
3077 | sb.append(String.format("\033[38;2;%d;%d;%dm", | |
3078 | foreColorRed, foreColorGreen, foreColorBlue)); | |
3079 | sb.append(String.format("\033[48;2;%d;%d;%dm", | |
3080 | backColorRed, backColorGreen, backColorBlue)); | |
3081 | return sb.toString(); | |
3082 | } | |
3083 | ||
15ea4d73 KL |
3084 | /** |
3085 | * Create a T.416 RGB parameter sequence for a single color change. | |
3086 | * | |
3087 | * @param bold if true, set bold | |
3088 | * @param color one of the Color.WHITE, Color.BLUE, etc. constants | |
3089 | * @param foreground if true, this is a foreground color | |
3090 | * @return the string to emit to an xterm terminal with RGB support, | |
3091 | * e.g. "\033[38;2;RR;GG;BBm" | |
3092 | */ | |
3093 | private String rgbColor(final boolean bold, final Color color, | |
3094 | final boolean foreground) { | |
3095 | if (doRgbColor == false) { | |
3096 | return ""; | |
3097 | } | |
3098 | StringBuilder sb = new StringBuilder("\033["); | |
3099 | if (bold) { | |
3100 | // Bold implies foreground only | |
3101 | sb.append("38;2;"); | |
3102 | if (color.equals(Color.BLACK)) { | |
6ba187ac | 3103 | sb.append("84;84;84"); |
15ea4d73 | 3104 | } else if (color.equals(Color.RED)) { |
6ba187ac | 3105 | sb.append("252;84;84"); |
15ea4d73 | 3106 | } else if (color.equals(Color.GREEN)) { |
6ba187ac | 3107 | sb.append("84;252;84"); |
15ea4d73 | 3108 | } else if (color.equals(Color.YELLOW)) { |
6ba187ac | 3109 | sb.append("252;252;84"); |
15ea4d73 | 3110 | } else if (color.equals(Color.BLUE)) { |
6ba187ac | 3111 | sb.append("84;84;252"); |
15ea4d73 | 3112 | } else if (color.equals(Color.MAGENTA)) { |
6ba187ac | 3113 | sb.append("252;84;252"); |
15ea4d73 | 3114 | } else if (color.equals(Color.CYAN)) { |
6ba187ac | 3115 | sb.append("84;252;252"); |
15ea4d73 KL |
3116 | } else if (color.equals(Color.WHITE)) { |
3117 | sb.append("252;252;252"); | |
3118 | } | |
3119 | } else { | |
3120 | if (foreground) { | |
3121 | sb.append("38;2;"); | |
3122 | } else { | |
3123 | sb.append("48;2;"); | |
3124 | } | |
3125 | if (color.equals(Color.BLACK)) { | |
3126 | sb.append("0;0;0"); | |
3127 | } else if (color.equals(Color.RED)) { | |
3128 | sb.append("168;0;0"); | |
3129 | } else if (color.equals(Color.GREEN)) { | |
3130 | sb.append("0;168;0"); | |
3131 | } else if (color.equals(Color.YELLOW)) { | |
6ba187ac | 3132 | sb.append("168;84;0"); |
15ea4d73 KL |
3133 | } else if (color.equals(Color.BLUE)) { |
3134 | sb.append("0;0;168"); | |
3135 | } else if (color.equals(Color.MAGENTA)) { | |
3136 | sb.append("168;0;168"); | |
3137 | } else if (color.equals(Color.CYAN)) { | |
3138 | sb.append("0;168;168"); | |
3139 | } else if (color.equals(Color.WHITE)) { | |
3140 | sb.append("168;168;168"); | |
3141 | } | |
3142 | } | |
3143 | sb.append("m"); | |
3144 | return sb.toString(); | |
3145 | } | |
3146 | ||
3147 | /** | |
3148 | * Create a T.416 RGB parameter sequence for both foreground and | |
3149 | * background color change. | |
3150 | * | |
3151 | * @param bold if true, set bold | |
3152 | * @param foreColor one of the Color.WHITE, Color.BLUE, etc. constants | |
3153 | * @param backColor one of the Color.WHITE, Color.BLUE, etc. constants | |
3154 | * @return the string to emit to an xterm terminal with RGB support, | |
3155 | * e.g. "\033[38;2;RR;GG;BB;48;2;RR;GG;BBm" | |
3156 | */ | |
3157 | private String rgbColor(final boolean bold, final Color foreColor, | |
3158 | final Color backColor) { | |
3159 | if (doRgbColor == false) { | |
3160 | return ""; | |
3161 | } | |
3162 | ||
3163 | return rgbColor(bold, foreColor, true) + | |
3164 | rgbColor(false, backColor, false); | |
b1589621 KL |
3165 | } |
3166 | ||
3167 | /** | |
3168 | * Create a SGR parameter sequence for a single color change. | |
3169 | * | |
05dbb28d KL |
3170 | * @param color one of the Color.WHITE, Color.BLUE, etc. constants |
3171 | * @param foreground if true, this is a foreground color | |
3172 | * @param header if true, make the full header, otherwise just emit the | |
3173 | * color parameter e.g. "42;" | |
3174 | * @return the string to emit to an ANSI / ECMA-style terminal, | |
3175 | * e.g. "\033[42m" | |
b1589621 | 3176 | */ |
b5f2a6db | 3177 | private String color(final Color color, final boolean foreground, |
7b5261bc KL |
3178 | final boolean header) { |
3179 | ||
3180 | int ecmaColor = color.getValue(); | |
3181 | ||
3182 | // Convert Color.* values to SGR numerics | |
3183 | if (foreground) { | |
3184 | ecmaColor += 30; | |
3185 | } else { | |
3186 | ecmaColor += 40; | |
3187 | } | |
3188 | ||
3189 | if (header) { | |
3190 | return String.format("\033[%dm", ecmaColor); | |
3191 | } else { | |
3192 | return String.format("%d;", ecmaColor); | |
3193 | } | |
b1589621 KL |
3194 | } |
3195 | ||
3196 | /** | |
b5f2a6db | 3197 | * Create a SGR parameter sequence for both foreground and background |
42873e30 | 3198 | * color change. |
b1589621 | 3199 | * |
15ea4d73 | 3200 | * @param bold if true, set bold |
05dbb28d KL |
3201 | * @param foreColor one of the Color.WHITE, Color.BLUE, etc. constants |
3202 | * @param backColor one of the Color.WHITE, Color.BLUE, etc. constants | |
3203 | * @return the string to emit to an ANSI / ECMA-style terminal, | |
3204 | * e.g. "\033[31;42m" | |
b1589621 | 3205 | */ |
42873e30 | 3206 | private String color(final boolean bold, final Color foreColor, |
15ea4d73 KL |
3207 | final Color backColor) { |
3208 | return color(foreColor, backColor, true) + | |
3209 | rgbColor(bold, foreColor, backColor); | |
b1589621 KL |
3210 | } |
3211 | ||
3212 | /** | |
3213 | * Create a SGR parameter sequence for both foreground and | |
3214 | * background color change. | |
3215 | * | |
05dbb28d KL |
3216 | * @param foreColor one of the Color.WHITE, Color.BLUE, etc. constants |
3217 | * @param backColor one of the Color.WHITE, Color.BLUE, etc. constants | |
3218 | * @param header if true, make the full header, otherwise just emit the | |
3219 | * color parameter e.g. "31;42;" | |
3220 | * @return the string to emit to an ANSI / ECMA-style terminal, | |
3221 | * e.g. "\033[31;42m" | |
b1589621 | 3222 | */ |
b5f2a6db | 3223 | private String color(final Color foreColor, final Color backColor, |
7b5261bc | 3224 | final boolean header) { |
b1589621 | 3225 | |
7b5261bc KL |
3226 | int ecmaForeColor = foreColor.getValue(); |
3227 | int ecmaBackColor = backColor.getValue(); | |
b1589621 | 3228 | |
7b5261bc KL |
3229 | // Convert Color.* values to SGR numerics |
3230 | ecmaBackColor += 40; | |
3231 | ecmaForeColor += 30; | |
b1589621 | 3232 | |
7b5261bc KL |
3233 | if (header) { |
3234 | return String.format("\033[%d;%dm", ecmaForeColor, ecmaBackColor); | |
3235 | } else { | |
3236 | return String.format("%d;%d;", ecmaForeColor, ecmaBackColor); | |
3237 | } | |
b1589621 KL |
3238 | } |
3239 | ||
3240 | /** | |
3241 | * Create a SGR parameter sequence for foreground, background, and | |
05dbb28d | 3242 | * several attributes. This sequence first resets all attributes to |
42873e30 | 3243 | * default, then sets attributes as per the parameters. |
b1589621 | 3244 | * |
05dbb28d KL |
3245 | * @param foreColor one of the Color.WHITE, Color.BLUE, etc. constants |
3246 | * @param backColor one of the Color.WHITE, Color.BLUE, etc. constants | |
3247 | * @param bold if true, set bold | |
3248 | * @param reverse if true, set reverse | |
3249 | * @param blink if true, set blink | |
3250 | * @param underline if true, set underline | |
3251 | * @return the string to emit to an ANSI / ECMA-style terminal, | |
3252 | * e.g. "\033[0;1;31;42m" | |
b1589621 | 3253 | */ |
42873e30 | 3254 | private String color(final Color foreColor, final Color backColor, |
7b5261bc KL |
3255 | final boolean bold, final boolean reverse, final boolean blink, |
3256 | final boolean underline) { | |
3257 | ||
3258 | int ecmaForeColor = foreColor.getValue(); | |
3259 | int ecmaBackColor = backColor.getValue(); | |
3260 | ||
3261 | // Convert Color.* values to SGR numerics | |
3262 | ecmaBackColor += 40; | |
3263 | ecmaForeColor += 30; | |
3264 | ||
3265 | StringBuilder sb = new StringBuilder(); | |
3266 | if ( bold && reverse && blink && !underline ) { | |
3267 | sb.append("\033[0;1;7;5;"); | |
3268 | } else if ( bold && reverse && !blink && !underline ) { | |
3269 | sb.append("\033[0;1;7;"); | |
3270 | } else if ( !bold && reverse && blink && !underline ) { | |
3271 | sb.append("\033[0;7;5;"); | |
3272 | } else if ( bold && !reverse && blink && !underline ) { | |
3273 | sb.append("\033[0;1;5;"); | |
3274 | } else if ( bold && !reverse && !blink && !underline ) { | |
3275 | sb.append("\033[0;1;"); | |
3276 | } else if ( !bold && reverse && !blink && !underline ) { | |
3277 | sb.append("\033[0;7;"); | |
3278 | } else if ( !bold && !reverse && blink && !underline) { | |
3279 | sb.append("\033[0;5;"); | |
3280 | } else if ( bold && reverse && blink && underline ) { | |
3281 | sb.append("\033[0;1;7;5;4;"); | |
3282 | } else if ( bold && reverse && !blink && underline ) { | |
3283 | sb.append("\033[0;1;7;4;"); | |
3284 | } else if ( !bold && reverse && blink && underline ) { | |
3285 | sb.append("\033[0;7;5;4;"); | |
3286 | } else if ( bold && !reverse && blink && underline ) { | |
3287 | sb.append("\033[0;1;5;4;"); | |
3288 | } else if ( bold && !reverse && !blink && underline ) { | |
3289 | sb.append("\033[0;1;4;"); | |
3290 | } else if ( !bold && reverse && !blink && underline ) { | |
3291 | sb.append("\033[0;7;4;"); | |
3292 | } else if ( !bold && !reverse && blink && underline) { | |
3293 | sb.append("\033[0;5;4;"); | |
3294 | } else if ( !bold && !reverse && !blink && underline) { | |
3295 | sb.append("\033[0;4;"); | |
3296 | } else { | |
3297 | assert (!bold && !reverse && !blink && !underline); | |
3298 | sb.append("\033[0;"); | |
3299 | } | |
3300 | sb.append(String.format("%d;%dm", ecmaForeColor, ecmaBackColor)); | |
8a632d71 KL |
3301 | sb.append(rgbColor(bold, foreColor, backColor)); |
3302 | return sb.toString(); | |
051e2913 KL |
3303 | } |
3304 | ||
3305 | /** | |
3306 | * Create a SGR parameter sequence for foreground, background, and | |
3307 | * several attributes. This sequence first resets all attributes to | |
3308 | * default, then sets attributes as per the parameters. | |
3309 | * | |
3310 | * @param foreColorRGB a 24-bit RGB value for foreground color | |
3311 | * @param backColorRGB a 24-bit RGB value for foreground color | |
3312 | * @param bold if true, set bold | |
3313 | * @param reverse if true, set reverse | |
3314 | * @param blink if true, set blink | |
3315 | * @param underline if true, set underline | |
3316 | * @return the string to emit to an ANSI / ECMA-style terminal, | |
3317 | * e.g. "\033[0;1;31;42m" | |
3318 | */ | |
3319 | private String colorRGB(final int foreColorRGB, final int backColorRGB, | |
3320 | final boolean bold, final boolean reverse, final boolean blink, | |
3321 | final boolean underline) { | |
3322 | ||
a69ed767 KL |
3323 | int foreColorRed = (foreColorRGB >>> 16) & 0xFF; |
3324 | int foreColorGreen = (foreColorRGB >>> 8) & 0xFF; | |
3325 | int foreColorBlue = foreColorRGB & 0xFF; | |
3326 | int backColorRed = (backColorRGB >>> 16) & 0xFF; | |
3327 | int backColorGreen = (backColorRGB >>> 8) & 0xFF; | |
3328 | int backColorBlue = backColorRGB & 0xFF; | |
051e2913 KL |
3329 | |
3330 | StringBuilder sb = new StringBuilder(); | |
3331 | if ( bold && reverse && blink && !underline ) { | |
3332 | sb.append("\033[0;1;7;5;"); | |
3333 | } else if ( bold && reverse && !blink && !underline ) { | |
3334 | sb.append("\033[0;1;7;"); | |
3335 | } else if ( !bold && reverse && blink && !underline ) { | |
3336 | sb.append("\033[0;7;5;"); | |
3337 | } else if ( bold && !reverse && blink && !underline ) { | |
3338 | sb.append("\033[0;1;5;"); | |
3339 | } else if ( bold && !reverse && !blink && !underline ) { | |
3340 | sb.append("\033[0;1;"); | |
3341 | } else if ( !bold && reverse && !blink && !underline ) { | |
3342 | sb.append("\033[0;7;"); | |
3343 | } else if ( !bold && !reverse && blink && !underline) { | |
3344 | sb.append("\033[0;5;"); | |
3345 | } else if ( bold && reverse && blink && underline ) { | |
3346 | sb.append("\033[0;1;7;5;4;"); | |
3347 | } else if ( bold && reverse && !blink && underline ) { | |
3348 | sb.append("\033[0;1;7;4;"); | |
3349 | } else if ( !bold && reverse && blink && underline ) { | |
3350 | sb.append("\033[0;7;5;4;"); | |
3351 | } else if ( bold && !reverse && blink && underline ) { | |
3352 | sb.append("\033[0;1;5;4;"); | |
3353 | } else if ( bold && !reverse && !blink && underline ) { | |
3354 | sb.append("\033[0;1;4;"); | |
3355 | } else if ( !bold && reverse && !blink && underline ) { | |
3356 | sb.append("\033[0;7;4;"); | |
3357 | } else if ( !bold && !reverse && blink && underline) { | |
3358 | sb.append("\033[0;5;4;"); | |
3359 | } else if ( !bold && !reverse && !blink && underline) { | |
3360 | sb.append("\033[0;4;"); | |
3361 | } else { | |
3362 | assert (!bold && !reverse && !blink && !underline); | |
3363 | sb.append("\033[0;"); | |
3364 | } | |
3365 | ||
3366 | sb.append("m\033[38;2;"); | |
3367 | sb.append(String.format("%d;%d;%d", foreColorRed, foreColorGreen, | |
3368 | foreColorBlue)); | |
3369 | sb.append("m\033[48;2;"); | |
3370 | sb.append(String.format("%d;%d;%d", backColorRed, backColorGreen, | |
3371 | backColorBlue)); | |
3372 | sb.append("m"); | |
3373 | return sb.toString(); | |
b1589621 KL |
3374 | } |
3375 | ||
b1589621 | 3376 | /** |
42873e30 | 3377 | * Create a SGR parameter sequence to reset to defaults. |
b1589621 | 3378 | * |
05dbb28d KL |
3379 | * @return the string to emit to an ANSI / ECMA-style terminal, |
3380 | * e.g. "\033[0m" | |
b1589621 | 3381 | */ |
42873e30 | 3382 | private String normal() { |
8a632d71 | 3383 | return normal(true) + rgbColor(false, Color.WHITE, Color.BLACK); |
b1589621 KL |
3384 | } |
3385 | ||
3386 | /** | |
3387 | * Create a SGR parameter sequence to reset to defaults. | |
3388 | * | |
05dbb28d KL |
3389 | * @param header if true, make the full header, otherwise just emit the |
3390 | * bare parameter e.g. "0;" | |
3391 | * @return the string to emit to an ANSI / ECMA-style terminal, | |
3392 | * e.g. "\033[0m" | |
b1589621 | 3393 | */ |
b5f2a6db | 3394 | private String normal(final boolean header) { |
7b5261bc KL |
3395 | if (header) { |
3396 | return "\033[0;37;40m"; | |
3397 | } | |
3398 | return "0;37;40"; | |
b1589621 KL |
3399 | } |
3400 | ||
b1589621 | 3401 | /** |
42873e30 | 3402 | * Create a SGR parameter sequence for enabling the visible cursor. |
b1589621 | 3403 | * |
05dbb28d KL |
3404 | * @param on if true, turn on cursor |
3405 | * @return the string to emit to an ANSI / ECMA-style terminal | |
b1589621 | 3406 | */ |
42873e30 | 3407 | private String cursor(final boolean on) { |
7b5261bc KL |
3408 | if (on && !cursorOn) { |
3409 | cursorOn = true; | |
3410 | return "\033[?25h"; | |
3411 | } | |
3412 | if (!on && cursorOn) { | |
3413 | cursorOn = false; | |
3414 | return "\033[?25l"; | |
3415 | } | |
3416 | return ""; | |
b1589621 KL |
3417 | } |
3418 | ||
3419 | /** | |
3420 | * Clear the entire screen. Because some terminals use back-color-erase, | |
3421 | * set the color to white-on-black beforehand. | |
3422 | * | |
05dbb28d | 3423 | * @return the string to emit to an ANSI / ECMA-style terminal |
b1589621 | 3424 | */ |
42873e30 | 3425 | private String clearAll() { |
7b5261bc | 3426 | return "\033[0;37;40m\033[2J"; |
b1589621 KL |
3427 | } |
3428 | ||
3429 | /** | |
3430 | * Clear the line from the cursor (inclusive) to the end of the screen. | |
3431 | * Because some terminals use back-color-erase, set the color to | |
42873e30 | 3432 | * white-on-black beforehand. |
b1589621 | 3433 | * |
05dbb28d | 3434 | * @return the string to emit to an ANSI / ECMA-style terminal |
b1589621 | 3435 | */ |
42873e30 | 3436 | private String clearRemainingLine() { |
7b5261bc | 3437 | return "\033[0;37;40m\033[K"; |
b1589621 KL |
3438 | } |
3439 | ||
b1589621 | 3440 | /** |
42873e30 | 3441 | * Move the cursor to (x, y). |
b1589621 | 3442 | * |
05dbb28d KL |
3443 | * @param x column coordinate. 0 is the left-most column. |
3444 | * @param y row coordinate. 0 is the top-most row. | |
3445 | * @return the string to emit to an ANSI / ECMA-style terminal | |
b1589621 | 3446 | */ |
42873e30 | 3447 | private String gotoXY(final int x, final int y) { |
7b5261bc | 3448 | return String.format("\033[%d;%dH", y + 1, x + 1); |
b1589621 KL |
3449 | } |
3450 | ||
3451 | /** | |
05dbb28d | 3452 | * Tell (u)xterm that we want to receive mouse events based on "Any event |
b5f2a6db KL |
3453 | * tracking", UTF-8 coordinates, and then SGR coordinates. Ideally we |
3454 | * will end up with SGR coordinates with UTF-8 coordinates as a fallback. | |
3455 | * See | |
b1589621 KL |
3456 | * http://invisible-island.net/xterm/ctlseqs/ctlseqs.html#Mouse%20Tracking |
3457 | * | |
05dbb28d | 3458 | * Note that this also sets the alternate/primary screen buffer. |
b1589621 | 3459 | * |
978a5d8f KL |
3460 | * Finally, also emit a Privacy Message sequence that Jexer recognizes to |
3461 | * mean "hide the mouse pointer." We have to use our own sequence to do | |
3462 | * this because there is no standard in xterm for unilaterally hiding the | |
3463 | * pointer all the time (regardless of typing). | |
3464 | * | |
05dbb28d KL |
3465 | * @param on If true, enable mouse report and use the alternate screen |
3466 | * buffer. If false disable mouse reporting and use the primary screen | |
3467 | * buffer. | |
3468 | * @return the string to emit to xterm | |
b1589621 | 3469 | */ |
b5f2a6db | 3470 | private String mouse(final boolean on) { |
7b5261bc | 3471 | if (on) { |
978a5d8f | 3472 | return "\033[?1002;1003;1005;1006h\033[?1049h\033^hideMousePointer\033\\"; |
7b5261bc | 3473 | } |
978a5d8f | 3474 | return "\033[?1002;1003;1006;1005l\033[?1049l\033^showMousePointer\033\\"; |
b1589621 KL |
3475 | } |
3476 | ||
3477 | } |