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